CN116506908A - Wireless network hotspot access method, device, equipment and readable storage medium - Google Patents

Abstract

The application provides a wireless network hot spot access method, a device, equipment and a readable storage medium, wherein a plurality of links can be constructed, a current access point can be rapidly switched from a main access point to a standby roaming access point in the roaming process, and when the standby access point is switched, an access flow and an authentication flow are not required to be established with the standby access point again, so that the interaction process with the standby access point can be effectively reduced, the time for switching from the currently connected access point to the standby roaming access point is saved, and the time delay for switching the access point is effectively reduced. And secondly, in the process of switching the standby access points from the main access point, the standby access point with the strongest signal strength in a plurality of standby access points can be effectively ensured, the random access to other standby access points with non-optimal signals can be effectively avoided, and the wireless link is more stable and reliable.

Description

Wireless network hotspot access method, device, equipment and readable storage medium

technical field

The present application relates to the technical field of network connection, and in particular to a wireless network hotspot access method, device, equipment and readable storage medium.

Background technique

With the increasing popularization of wireless network technology, more and more traditional scenarios covered by wireless networks, in some special application scenarios of wireless networks, such as AGV mobile scenarios, subway stations for data return scenarios, etc., performance requirements Also getting higher and higher. Not only is it required that terminals connected to mobile network hotspots can reconnect normally and stably when roaming from one access point to another, but also no packet loss, low latency, and high stability are required during roaming. In view of the fact that there is no protocol interoperability between access points, common mobile network terminal devices need to go through the process of detection, detection feedback, authentication request, authentication feedback, access request, and access feedback after roaming to realize the new roaming. The access point access process leads to too long access time. At the same time, considering that the wireless network is a network with channel competition, there is a further prolongation of the access time of the new access point.

Therefore, how to improve the stability, reliability and low-latency characteristics of network terminal equipment during roaming is one of the hot issues that everyone pays attention to.

Contents of the invention

The present application provides a wireless network hotspot access method, device, equipment and readable storage medium, which are used to solve the technical defects in the prior art that the wireless network hotspot access takes a long time and its mobility and stability are difficult to guarantee.

A wireless network hotspot access method, comprising:

Send a network detection access request to each access point in the target local area network periodically according to the preset first time period;

receiving the network detection management frame information replied by each of the access points, wherein the network detection management frame information replied by each of the access points is information that each of the access points responds according to the standard protocol of the target network hotspot;

Complete the authentication work with each of the access points in turn according to the received network detection management frame information, and record the authentication information with each of the access points into a preset access point authentication table;

Analyzing the access point authentication table, and determining a first target access point from each of the access points that have completed the authentication work;

establishing a network connection with the first target access point;

Continuously and regularly update the information of the access point authentication table according to the preset second time period;

Analyzing the information of the latest access point authentication table at the current moment, and determining the second target access point from the remaining access points that have completed the authentication work but have not established the access process;

determining a difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point;

judging whether the difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point exceeds a preset switching threshold;

If the difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point exceeds a preset switching threshold, disconnect the connection with the first target access point. network connection of the access point, and establish a network connection with the second target access point.

Preferably, the method also includes:

According to the preset third time period, the network connection with each of the access points is continuously and regularly updated, so as to ensure that a stable connection relationship is established with the wireless network access hotspot in the target local area network.

Preferably, the analyzing the access point authentication table to determine the first target access point from each of the access points that have completed the authentication work includes:

Analyzing the access point authentication table to determine the historical power data of each access point that has completed the authentication work;

Preprocessing the historical power data of each of the access points respectively to determine the average power of each of the access points;

sorting the average power of each of the access points to obtain a sorting result of the average power of each of the access points;

According to the sorting result of the average power of each of the access points, it is determined that the access point with the highest average power is the first target access point.

Preferably, according to the received network detection management frame information, the authentication work with each of the access points is completed sequentially, including:

According to the received time of receiving the network detection management frame information sent by each of the access points, determine the order of the received network detection management frame information sent by each of the access points;

According to the received order of the network detection management frame information sent by each of the access points, the access point corresponding to the first received network detection management frame information performs authentication work according to the standard protocol of the target network hotspot;

After the first access point completes the authentication work, it completes the authentication work with the remaining access points according to the sequence of the received network detection management frame information sent by each of the access points, until it completes the authentication work with the other access points. The authentication work of the access point corresponding to all the received network detection management frame information.

Preferably, the preset first time period, the preset second time period and the preset third time period are all set according to application scenarios;

Wherein, the range of the preset first time period is set to [0.1ms, 2.5ms];

The range of the preset second time period is set to [0.1ms, 5ms];

The preset range of the third time period is set to [0.1ms, 10ms].

Preferably, the preprocessing of the historical power data of each of the access points to determine the average power of each of the access points includes:

Performing average calculation on the historical power data of each of the access points according to a preset calculation frequency to obtain the average power of each of the access points;

in,

The default calculation frequency is 3 times.

Preferably, the method is applied to a terminal, and the terminal includes a first data exchange module, a first air interface flow management module, a first wireless control framing module, a first encoding and decoding module, and a first radio frequency processing module;

The access point includes a second data exchange module, a second air interface flow management module, a second wireless control framing module, a second encoding and decoding module, and a second radio frequency processing module;

in,

Both the first data exchange module and the second data exchange module are used to implement exchange processing at the media access layer on the wired data side;

Both the first air interface flow management module and the second air interface flow management module have the functions of realizing scheduling management for wired media access layer data, including judging data type, determining data priority, and scheduling queue functions;

The first wireless control framing module is used for filling, framing, and analyzing the frame structure of the air interface;

The second wireless control framing module is used to realize protocol management of wireless network hotspots, and realize filling, framing, and frame structure analysis of the air interface frame structure;

Both the first encoding and decoding module and the second encoding and decoding module are used to realize the encoding and decoding functions of the physical layer;

Both the first radio frequency processing module and the second radio frequency processing module are used to receive or transmit wireless data.

A wireless network hotspot access device, comprising:

A request sending unit, configured to periodically send a network detection access request to each access point in the target LAN according to a preset first time period;

The information receiving unit is configured to receive the network detection management frame information replied by each of the access points, wherein the network detection management frame information returned by each of the access points is a standard protocol of each of the access points according to the target network hotspot Response information;

The authentication unit is used to sequentially complete the authentication work with each of the access points according to the received network detection management frame information, and record the authentication information with each of the access points to a preset access point authentication form;

A first analysis unit, configured to analyze the access point authentication table, and determine a first target access point from each of the access points that have completed the authentication work;

a first connection establishment unit, configured to establish a network connection with the first target access point;

A first updating unit, configured to continuously and periodically update the information of the access point authentication table according to a preset second time period;

The second analysis unit is used to analyze the information of the latest access point identification table at the current moment, and determine the second target access point from the remaining access points that have completed the authentication work but have not established the access process;

a signal determining unit, configured to determine a difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point;

A judging unit, configured to judge whether the difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point exceeds a preset switching threshold;

A switching unit, configured to determine that the difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point exceeds a preset value when the execution result of the judging unit is When the switching threshold is set, disconnect the network connection with the first target access point, and establish a network connection with the second target access point.

A wireless network hotspot access device, comprising: one or more processors, and memory;

Computer-readable instructions are stored in the memory, and when the computer-readable instructions are executed by the one or more processors, the steps of the wireless network hotspot access method described in any one of the foregoing introductions are implemented.

A readable storage medium, where computer-readable instructions are stored in the readable storage medium, and when the computer-readable instructions are executed by one or more processors, one or more processors can realize any of the above-mentioned introductions. A step of the wireless network hotspot access method.

It can be seen from the technical solutions introduced above that the method provided by the embodiment of the present application can periodically send a network detection access request to each access point in the target LAN according to the preset first time period; wherein, if each access After the point receives the network detection access request, it may respond. Therefore, after sending the network detection access request, the application can also receive the network detection management frame information replied by each access point, wherein each access point replies The network detection management frame information is the information that each access point responds to according to the standard protocol of the target network hotspot; since the network detection management frame information replied by each access point includes the relevant information of each access point, therefore, after receiving each After the network detection management frame information replied by the access point, the authentication work with each access point can be completed in sequence according to the received network detection management frame information, and the authentication information with each access point can be recorded to the preset Access point authentication table; Wherein, the access point authentication table can include the relevant information of the authentication process of each access point; Therefore, by analyzing the access point authentication table, from each access point that has completed the authentication work Determine the first target access point in the access point; and build a network connection with the first target access point; after the first target access point establishes a network connection relationship, in order to ensure the stability of the wireless link, you can follow the preset In the second time period, continue to regularly update the information of the access point authentication table; and analyze the information of the latest access point authentication table at the current moment, and determine from the remaining access points that have completed the authentication work but have not established the access process The second target access point; and determine the difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point; then determine the first target access point currently establishing a network connection Whether the difference between the signal strength of the target access point and the signal strength of the second target access point exceeds the preset switching threshold; If the difference between the signal strengths of the access points exceeds the preset switching threshold, it means that the signal strength of the second target access point may be better than the signal strength of the first target access point. Therefore, in order to ensure the signal strength of the wireless link Stability, you can disconnect the network connection with the first target access point and establish the network connection with the second target access point.

It can be seen from the above introduction that when a wireless network access point needs to be connected, the method provided by the embodiment of the present application can build multiple links, and can quickly switch from the main access point to the backup when the current access point is roaming. roaming access point, and when the standby access point is switched, there is no need to re-establish the access process and authentication process with the standby access point, which can effectively reduce the interaction process with the standby access point and save the current connection The time it takes for the access point to switch to the standby roaming access point effectively reduces the delay of access point switching. Secondly, in the process of switching from the main access point to the standby access point, it can be effectively guaranteed to switch to the backup access point with the strongest signal strength among the many backup access points, which can effectively avoid random access to other non-signal The optimal backup access point makes the wireless link more stable and reliable. Further, this application can also maintain the access point authentication list in real time, maintain the detection function for the current network, and manage the network environment more intelligently, especially suitable for It is suitable for scenarios with high reliability requirements, and can be applied to high-tech fields such as unmanned factories and smart manufacturing with incremental features.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without any creative effort.

FIG. 1 is a schematic diagram of an internal structure of a terminal provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of the hardware structure of a commonly used terminal device provided by the embodiment of the present application;

FIG. 3 is a flowchart of a method for implementing wireless network hotspot access provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a wireless link management system that applies the method provided by the embodiment of the present application provided by the embodiment of the present application;

FIG. 5 is a schematic structural diagram of a wireless network hotspot access device according to an example embodiment of the present application;

FIG. 6 is a block diagram of a hardware structure of a wireless network hotspot access device disclosed in an embodiment of the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

In view of the fact that most of the current wireless network hotspot access solutions are difficult to adapt to complex and changeable business needs, the applicant has studied a wireless network hotspot access solution. When it is necessary to connect to a wireless network access point, this application implements The method provided by the example can build multiple links, and can quickly switch from the main access point to the standby roaming access point during the roaming process of the current access point, and when switching the standby access point, there is no need to restart Establishing the access process and authentication process with the standby access point can effectively reduce the interaction process with the standby access point, save the time of switching from the currently connected access point to the standby roaming access point, and effectively reduce the access Ingress switching delay. Secondly, in the process of switching from the main access point to the standby access point, it can be effectively guaranteed to switch to the backup access point with the strongest signal strength among the many backup access points, which can effectively avoid random access to other non-signal The optimal backup access point makes the wireless link more stable and reliable. Further, this application can also maintain the access point authentication list in real time, maintain the detection function for the current network, and manage the network environment more intelligently, especially suitable for It is suitable for scenarios with high reliability requirements, and can be applied to high-tech fields such as unmanned factories and smart manufacturing with incremental features.

The methods provided by the embodiments of the present application can be used in many general-purpose or special-purpose computing device environments or configurations. For example: personal computer, server computer, handheld or portable device, tablet type device, multiprocessor device, distributed computing environment including any of the above devices or devices, etc.

The embodiment of the present application provides a wireless network hotspot access method, which can be applied to various network management systems, and can also be applied to various computer terminals or smart terminals, and the execution subject can be a computer terminal or a smart terminal Terminal processor or server.

Furthermore, the method provided in the embodiment of the present application can be applied in a terminal and an access point.

in,

The terminal to which the method provided in the embodiment of the present application is applied may include a first data exchange module, a first air interface flow management module, a first wireless control framing module, a first encoding and decoding module, and a first radio frequency processing module;

The access point to which the method provided in the embodiment of the present application is applied may include a second data exchange module, a second air interface flow management module, a second wireless control framing module, a second encoding and decoding module, and a second radio frequency processing module;

In practical applications, the master station that transmits signals is generally called an AP or an access point, and the device associated with this AP is called a terminal.

For example,

FIG. 1 illustrates a schematic diagram of an internal structure of a terminal.

in,

Both the first data exchange module and the second data exchange module can be used to implement exchange processing at the media access layer on the wired data side;

Both the first air interface flow management module and the second air interface flow management module have the functions of realizing the scheduling management of wired media access layer data, which may include judging data types, determining data priority, and scheduling queue functions;

The first wireless control framing module can be used to realize the filling, framing, and frame structure analysis of the air interface frame structure;

The second wireless control framing module can be used to realize the protocol management of wireless network hotspots, realize the filling, framing, and analysis of the frame structure of the air interface;

Both the first encoding and decoding module and the second encoding and decoding module can be used to realize the encoding and decoding functions of the physical layer;

Both the first radio frequency processing module and the second radio frequency processing module can be used to receive or transmit wireless data.

In an actual application process, the method applied by the method provided in the embodiment of the present application may use commonly used device hardware in terms of hardware.

For example,

FIG. 2 illustrates a schematic diagram of a hardware structure of a commonly used terminal device.

As shown in FIG. 2 , the terminal device may use general-purpose device hardware in terms of hardware, and the general-purpose device hardware may include a main control chip, a storage chip, a power chip, a radio frequency control chip, a radio frequency circuit, and a clock circuit.

in,

The main control chip is mainly to realize the control and management function, and the timing triggering action of the system is realized by the main control chip. The main control chip can also implement the function of updating and saving the authentication list of the access point. At the same time, it is responsible for the configuration function of the N value and the M value, and the function of calculating the power in the authentication list.

Under the control of the main control chip, the radio frequency control chip realizes the transmission of the control frame of the logical link layer, including different types of request frames and response frames, and completes the modulation and demodulation of the physical layer, and the power statistics function of different access points. The radio frequency link implements the amplification of the transmitting power, the amplification of the receiving link, and the switching function of the uplink and downlink. The radio frequency link includes the sub-network element of the antenna.

Other modules serve as system auxiliary network elements to support the system to realize functions. The power module is responsible for providing 3.3V, 5V and other types of digital or analog power; the clock circuit is responsible for providing the system clock signal; the storage module is responsible for providing flash storage and DDR memory storage functions.

The following describes the flow of the wireless network hotspot access method given in the embodiment of the present application in conjunction with FIG. 3 and FIG. 4. As shown in FIG. 3, the flow may include the following steps:

Step S101, periodically sending a network detection access request to each access point in the target LAN according to a preset first time period.

Specifically, in the actual application process, as WiFi becomes more and more popular, there are more and more traditional scenarios covered by WiFi. In special application scenarios of WiFi, such as AGV mobile scenarios and subway progress data return scenarios, etc., for Performance requirements are also getting higher and higher.

It is not only required that WiFi terminals can reconnect normally and stably when roaming from one access point to another, but also requires no data packet loss during roaming, low delay and high stability.

In view of the fact that there is no protocol intercommunication between WiFi access points, after ordinary WiFi roaming, it is necessary to go through the process of network detection, detection feedback, authentication request, authentication feedback, access request, and access feedback again in order to realize the new roaming. The access point access process, which leads to the long access time of the WiFi access point;

Further, considering that the WiFi network is a network with channel competition, there may also be a possibility of further prolonging the access time of the new access point.

Therefore, in order to reduce the access time of wireless network hotspots, a network detection access request can be periodically sent to each access point in the target LAN according to the preset first time period, so that multiple access points can be accessed at the same time The interaction of the process so that a connection relationship can be established with multiple access points.

in,

The preset first time period may be set according to a specific application scenario.

For example, in some application scenarios with many and complicated access points, such as a station, the range of the first time period may be set to [0.1ms, 2.5ms].

Step S102, receiving network detection management frame information replied by each of the access points.

Specifically, it can be seen from the above introduction that the method provided by the embodiment of the present application can regularly send network detection access requests to at least two access points in the target local area network.

In the actual application process, since there is no protocol interoperability between WiFi access points, after ordinary WiFi roaming, it is necessary to go through the process of network detection, detection feedback, authentication request, authentication feedback, access request, and access feedback again. A new access point access process after roaming can be realized.

Therefore, after the network detection request is sent to each access point in the target LAN, each access point may perform detection feedback.

For example, in an actual application process, after receiving a network detection access request from a terminal, the access point generally responds with a network detection management frame according to a standard wifi protocol.

Therefore, after the network detection access request is sent to each access point, the method provided in the embodiment of the present application may also receive network detection management frame information replied by each access point.

Generally speaking, wifi protocols can include 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ax, 802.11ad, and 802.11be developed by the IEEE802.11 protocol group.

Therefore, the network detection management frame information returned by each access point may be the information that each access point responds to according to the standard protocol of the target network hotspot.

The standard protocol of the target network hotspot may include 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ax, 802.11ad, and 802.11be developed by the IEEE802.11 protocol group.

Therefore, the management information of the network detection frame replied by each access point may include the protocol information of the network hotspot.

Step S103, according to the received network detection management frame information, sequentially complete the authentication work with each of the access points, and record the authentication information with each of the access points in the preset access point authentication table .

Specifically, it can be seen from the above introduction that the method provided by the embodiment of the present application can receive the management information of the network detection frame replied by each access point.

Wherein, the management information of the network detection frame may include the protocol information of the network hotspot corresponding to the access point.

After knowing the network protocol information supported by the access point, authentication can be performed with the access point.

Therefore, the method provided by the embodiment of the present application can sequentially complete the authentication work with each access point according to the received network detection management frame information, and record the authentication information with each access point to the preset access point Authentication form.

in,

The method provided by the embodiment of the present application can be applied to a terminal, and in an actual application process, the terminal can periodically send a network detection access request to each access point.

In an actual application process, the period for the terminal to periodically send the network detection access request can be set according to a specific application scenario.

For example, the period for the terminal to send the network detection access request may be set to 2.5ms.

It can be seen from the above introduction that in the actual application process, after receiving the network detection access request from the terminal, the access point will generally respond to the network detection management frame according to the standard wifi protocol.

Therefore, after receiving the network detection management frame information replied by the access point, the terminal can carry out an authentication process with the access point according to the WiFi standard protocol.

For example,

The terminal can send an authentication request to the access point that sent the network detection management frame information to it. After receiving the authentication request sent by the terminal, the access point replies with the authentication request feedback information. So far, the terminal has completed the communication with the access point. Authentication work.

In the actual application process, since the terminal periodically sends network detection access requests to multiple access points at the same time.

After the terminal completes the authentication work with the first access point, the terminal may continue to periodically send network detection access requests to the remaining access points, and it is also possible that the terminal may receive The network detection management frame information replied by the second access point, therefore, after the terminal completes the authentication work with the first access point, it can continue to complete the authentication work of the second access point; wherein, the first The authentication process of the second access point is consistent with the authentication process of the first access point.

Similarly, after the authentication work with the second access point is completed, the authentication process of the remaining access points that have not completed the authentication work can be continued until it corresponds to all received network detection management frame information The authentication work of all the access points.

In the actual application process, in order to better manage the related information of each access point, the method provided by the embodiment of the present application can create an access point authentication table to manage the authentication information between the terminal and the access point.

Wherein, the access point authentication table may include power, negotiation rate, and access point name information of each access point.

Therefore, in the actual application process, after the authentication work with each access point is completed, the authentication-related information of each access point can be updated into the access point authentication table, so that the authentication information of each access point can be The relevant information of the right table is used to determine the access point that needs to establish a connection.

Step S104, analyzing the access point authentication table, and determining a first target access point from all the access points that have completed the authentication work.

Specifically, it can be seen from the above introduction that the embodiment of the present application can create an access point authentication table to manage relevant authentication information of each access point, and the access point authentication table can include the power of the access point, the negotiation rate, Access point name information.

In order to improve the stability and reliability of the wireless link, it may be considered to determine an access point with the best signal strength among the access points that have completed the authentication work to establish a connection.

Therefore, after completing the authentication work with each access point, the access point authentication table can be analyzed, and the first target access point can be determined from each access point that has completed the authentication work.

For example, the maximum power value can be selected from each access point that has completed the authentication work to carry out the access process, so as to ensure the reliability and stability of the wireless link.

Step S105, establishing a network connection with the first target access point.

Specifically, it can be seen from the above introduction that the method provided by the embodiment of the present application can analyze the access point authentication table after completing the authentication work with each access point, and select the information from each access point that has completed the authentication work Determine the first target access point.

In a practical application process, it is generally considered that the stability and reliability of the wireless link can be improved to determine the target access point. Therefore, the determined first target access point should be the access point with the best signal among the many access points that have completed the authentication work. Establishing a network connection relationship with the first target access point will have a better effect than establishing a network connection with other access points that have completed the authentication work. Therefore, establishing a network connection with the first target access point can effectively improve the wireless link. Road stability and reliability. Therefore, after the first target access point is determined, a network connection can be established with the first target access point.

Step S106, according to the preset second time period, continuously and regularly update the information of the access point authentication table.

Specifically, in the actual application process, the power or signal strength of the access point in the identification table may gradually change due to changes in the distance or relative position between the access point and the terminal, and may also cause the current The signal or power of the accessed access point becomes weak.

Therefore, in the process of establishing a network connection with the first target access point, the information in the access point authentication table can be continuously and regularly updated according to the preset second time period, so that the changed access point information can be updated in time. Recorded in the access point authentication table.

in,

The preset second time period may be set according to the application scenario. For example, in an experiment of the present application, in a complex application environment such as a station, the relative positions of the access point and the terminal change rapidly.

It may be considered to set the preset range of the second time period to [0.1ms, 5ms].

Step S107, analyzing the information of the latest access point authentication table at the current moment, and determining the second target access point from the remaining access points that have completed the authentication work but have not established the access process.

Specifically, it can be seen from the above introduction that the method provided by the embodiment of the present application can continue to regularly update the access point according to the preset second time period after establishing a network connection relationship with one of the many access points. Entry point authentication table information.

Therefore, in order to ensure that the signal of the connected access point is the access point with the best signal among many access points, it is also possible to switch to the access point with better signal in time when the signal of the currently connected access point becomes weaker. Among them, the method provided by the embodiment of the present application can also analyze the information of the latest access point identification table at the current moment while regularly updating the access point related information in the access point identification table, from the completed authentication work but not yet The second target access point is determined from the remaining access points in the access procedure, so as to determine whether there is an access point with better signal strength than the currently connected access point.

Step S108, determining a difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point.

Specifically, it can be seen from the above introduction that the method provided by the embodiment of the present application can analyze the information of the latest access point identification table at the current moment while regularly updating the information about the access point in the access point identification table, from the completed The second target access point is determined from the remaining access points that have been authenticated but have not established an access procedure.

Further, after the second target access point is determined, the difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point can be determined, so that the second target access point can be judged. Whether the signal strength of the target access point is better than the signal strength of the first target access point currently establishing a network connection.

Step S109, judging whether the difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point exceeds a preset switching threshold.

Specifically, it can be seen from the above introduction that the method provided by the embodiment of the present application can determine the difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point.

According to the difference between the signal strength of the first target access point with the currently established network connection and the signal strength of the second target access point, it can be determined whether it is necessary to switch the first target access point with the currently established network connection to Second target access point.

Therefore, after determining the difference between the signal strength of the first target access point currently establishing network connection and the signal strength of the second target access point, the signal of the first target access point currently establishing network connection can be judged Whether the difference between the strength and the signal strength of the second target access point exceeds a preset switching threshold.

in,

The preset switching threshold may be set according to an actual application scenario, for example, the preset switching threshold may be set to [15db, 20db].

It can be known from experiments that when the difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point exceeds 15db, the first target access point currently establishing a connection is switched become the second target access point, the stability and reliability of its wireless link are better.

If the difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point exceeds a preset switching threshold, step S110 may be executed.

Step S110, disconnecting the network connection with the first target access point, and establishing a network connection with the second target access point.

Specifically, it can be seen from the above introduction that the method provided by the embodiment of the present application can determine whether the difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point exceeds a preset switching threshold.

If the difference between the signal strength of the first target access point that currently establishes a network connection and the signal strength of the second target access point exceeds the preset switching threshold, it means that the signal strength of the second target access point is better than The first target connection point for which the network connection is currently established. Therefore, in order to ensure the stability and reliability of the wireless link, the network connection with the first target access point can be disconnected, and the network connection with the second target access point can be established to ensure the stability of the constructed wireless link sex and reliability.

It can be seen that, when the signal of the currently accessed first target access point deteriorates, switch to the second target access point. Because the second target access point is an access point that has completed the authentication work. Switching from the first target access point to the second target access point does not need to resend the access request with the second target access point and wait for the access response of the second target access point before starting to communicate with the second target The authentication process of the access point. It can be seen that, using the method provided by the embodiment of the present application to switch access points can save four access procedures: the terminal sends a network detection access request to the access point, the access point receives the network detection access request sent by the terminal and The four processes of sending an access response to the terminal, the terminal receiving the access response sent by the access point and sending an authentication request to the access point, and the access point receiving the authentication request sent by the terminal and sending an authentication response to the terminal can effectively Reduce the connection time required to switch access points.

For example,

Fig. 4 illustrates a schematic structural diagram of a radio link management system applying the method provided by the embodiment of the present application.

As can be seen from Figure 4,

The system may include at least one terminal and at least two access points.

in,

Terminal 1 can build a main wireless network link with access point 1, and terminal 1 can also build a backup wireless network link with access point 2; terminal 2 can build a main wireless network link with access point 1, and terminal 2 can build a standby wireless network link with access point 2, and so on, almost every terminal can build at least two wireless network links with at least two access points.

It can be seen from the technical solutions introduced above that when it is necessary to connect to a wireless network access point, the method provided in the embodiment of the present application can construct multiple links, and when the current access point is roaming, it can quickly connect to the main access point. The access point is switched to the standby roaming access point, and when switching the standby access point, there is no need to re-establish the access process and authentication process with the standby access point, which can effectively reduce the interaction process with the standby access point. It saves the time of switching from the currently connected access point to the standby roaming access point, and effectively reduces the delay of access point switching. Secondly, in the process of switching from the main access point to the standby access point, it can be effectively guaranteed to switch to the backup access point with the strongest signal strength among the many backup access points, which can effectively avoid random access to other non-signal The optimal backup access point makes the wireless link more stable and reliable. Further, this application can also maintain the access point authentication list in real time, maintain the detection function for the current network, and manage the network environment more intelligently, especially suitable for It is suitable for scenarios with high reliability requirements, and can be applied to high-tech fields such as unmanned factories and smart manufacturing with incremental features.

In the actual application process, in order to maintain a stable connection relationship with the wireless network access hotspot, the method provided by the embodiment of the present application can also continue to periodically update the network connection with each access point according to the preset third time period, To ensure a stable connection relationship with the wireless network access hotspot in the target LAN.

in,

The preset third time period may be set according to an actual application scenario.

For example, the preset range of the third time period may be set as [0.1ms, 10ms].

It can be seen from the above introduction that the method provided by the embodiment of the present application can analyze the access point authentication table and determine the first target access point from the access points that have completed the authentication work. Next, the process will be introduced. This process can Including the following steps:

Step S201, analyzing the access point authentication table to determine the historical power data of each access point that has completed the authentication work.

Specifically, it can be seen from the above introduction that the method provided by the embodiment of the present application can update the information of each access point in the access point identification table in time.

The access point authentication table may include the power, negotiation rate, and access point name information of each access point.

Therefore, the access point authentication table can be analyzed, so that the historical power data of each access point that has completed the authentication work can be determined, so as to know the signal strength of each access point.

Step S202, respectively preprocessing the historical power data of each of the access points to determine the average power of each of the access points.

Specifically, it can be seen from the above introduction that the method provided by the embodiment of the present application can determine the historical power data of each access point that has completed the authentication work by analyzing the access point authentication table.

The historical power data of each access point can reflect the signal strength of each access point.

Therefore, after determining the historical power data of each access point, the historical power data of each access point can be preprocessed to determine the average power of each access point, and the average power of each access point can be used to determine Know the signal stability of various access points.

in,

The process of preprocessing the historical power data of each access point respectively, and determining the average power of each access point may include the following:

According to the preset calculation frequency, the historical power data of each access point can be averaged to obtain the average power of each access point;

in,

The preset calculation frequency can be set according to actual application requirements, for example, the preset calculation frequency can be set to 3 times.

In the actual application process, the historical power data of each access point may be averaged at least three times to obtain the average power of each access point.

Step S203, sorting the average power of each of the access points to obtain a sorting result of the average power of each of the access points.

Specifically, it can be seen from the above introduction that the method provided by the embodiment of the present application can determine the average power of each access point by analyzing the historical power data of each access point, and the average power of each access point can reflect the power of each access point. The signal stability of the entry point.

Therefore, after determining the signal stability of each access point, the average power of each access point can be sorted to obtain the sorting result of the average power of each access point, so that the average power of each access point can be Sort the results to determine the access point with the most stable and best signal among each access point.

For example,

The average power of each access point may be sorted in descending order to obtain a sorting result of the average power of each access point.

Step S204, according to the ranking result of the average power of each of the access points, determine the access point with the highest average power as the first target access point.

Specifically, it can be seen from the above introduction that the method provided by the embodiment of the present application can sort the average power of each access point after determining the signal stability of each access point, and obtain the average power of each access point. Sort results.

Through the sorting results of the average power of each access point, the access point with the best signal among the access points that have completed the authentication work can be known. Generally, it can be considered that among the many access points that have completed the authentication work, the access point with the highest average power is the access point with the best signal among the many access points that have completed the authentication work.

Therefore, after the average power of each access point is determined, the access point with the highest average power may be determined as the first target access point according to the ranking result of the average power of each access point.

From the technical solutions introduced above, it can be known that the method provided by the embodiment of the present application can determine the access point with the highest average power as the target access point by analyzing the historical power data of the access points that have completed the authentication work, which can effectively ensure The stability and reliability of the constructed wireless link.

It can be seen from the above introduction that the method provided by the embodiment of the present application can complete the authentication work with each of the access points in sequence according to the received network detection management frame information. Next, the process will be introduced, and the process can include the following: step:

Step S301, according to the received time of the received network detection management frame information sent by each of the access points, determine the sequence of the received network detection management frame information sent by each of the access points.

Specifically, it can be known from the above introduction that the method provided in the embodiment of the present application can receive network detection management frame information sent by each access point.

The time for different access points to send the network detection management frame information may be different.

In order to save connection time and improve data processing efficiency. The method provided by the embodiment of the present application can determine the order of the received network detection management frame information sent by each access point according to the receiving time of the received network detection management frame information sent by each access point, so that the most recent The information of the access point that first receives the network detection management frame information completes the authentication work with the access point at the fastest speed, thereby reducing the authentication time with the access point.

Step S302, according to the order of the received network detection management frame information sent by each of the access points, the access point corresponding to the first received network detection management frame information performs authentication according to the standard protocol of the target network hotspot. right to work.

Specifically, it can be seen from the above introduction that the method provided by the embodiment of the present application can determine the received network detection management frame information sent by each access point according to the receiving time of the received network detection management frame information sent by each access point order.

After determining the order of the received network detection management frame information sent by each access point, it can be determined which access point's network detection management frame information is received first, and then the authentication with the access point can be quickly carried out right to work.

Therefore, after determining the sequence of received network detection management frame information sent by each access point, the network detection management frame information received first may be compared with the first received network detection management frame information according to the sequence of received network detection management frame information sent by each access point. The management frame information corresponds to the access point to carry out authentication work according to the standard protocol of the target network hotspot, so as to reduce the time for authentication work with the access point, so that the many access points in the received network detection management frame information can be completed The authentication work of the first access point in .

Step S303, after the first access point completes the authentication work, complete the authentication work with the remaining access points according to the sequence of the received network detection management frame information sent by each of the access points, Until the authentication work of the access point corresponding to all received network detection management frame information is completed.

Specifically, it can be seen from the above introduction that the method provided by the embodiment of the present application can determine the access point corresponding to the network detection management frame information first received after determining the order of the received network detection management frame information sent by each access point , and the access point corresponding to the first received network detection management frame information performs authentication work according to the standard protocol of the target network hotspot.

Further, after the first access point completes the authentication work, it can complete the authentication work with the remaining access points according to the sequence of the received network detection management frame information sent by each access point, until The authentication work of the access point corresponding to all received network detection management frame information is completed.

It can be seen from the technical solutions introduced above that the method provided by the embodiment of the present application can determine the order of the received network detection management frame information sent by each access point, and respectively follow the sequence of the received information sent by each access point. The sequence of the network detection management frame information and each access point complete the authentication work, until the authentication work of the access points corresponding to all the received network detection management frame information is completed, so that it can communicate with each access point when necessary. The entry point builds a network connection relationship.

The wireless network hotspot access device provided by the embodiment of the present application is described below, and the wireless network hotspot access device described below and the wireless network hotspot access method described above can be referred to in correspondence.

Referring to FIG. 5 , FIG. 5 is a schematic structural diagram of a wireless network hotspot access device disclosed in an embodiment of the present application.

As shown in Figure 5, the wireless network hotspot access device may include:

The request sending unit 101 is configured to periodically send a network detection access request to each access point in the target LAN according to a preset first time period;

The information receiving unit 102 is configured to receive the network detection management frame information replied by each of the access points, wherein the network detection management frame information returned by each of the access points is the standard of each of the access points according to the target network hotspot Protocol response information;

The authentication unit 103 is configured to sequentially complete the authentication work with each of the access points according to the received network detection management frame information, and record the authentication information with each of the access points to the preset access point authentication table;

The first analysis unit 104 is configured to analyze the access point authentication table, and determine a first target access point from each of the access points that have completed the authentication work;

A first connection establishment unit 105, configured to establish a network connection with the first target access point;

The first updating unit 106 is configured to continuously and periodically update the information of the access point authentication table according to a preset second time period;

The second analysis unit 107 is configured to analyze the information of the latest access point authentication table at the current moment, and determine the second target access point from the remaining access points that have completed the authentication work but have not established the access process;

a signal determining unit 108, configured to determine a difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point;

A judging unit 109, configured to judge whether the difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point exceeds a preset switching threshold;

The switching unit 110 is configured to determine that the difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point exceeds When the preset switching threshold is reached, the network connection with the first target access point is disconnected, and the network connection with the second target access point is established.

It can be seen from the technical solutions introduced above that the device provided by the embodiment of the present application can periodically send a network detection access request to each access point in the target LAN according to the preset first time period; wherein, if each access After the point receives the network detection access request, it may respond. Therefore, after sending the network detection access request, the application can also receive the network detection management frame information replied by each access point, wherein each access point replies The network detection management frame information is the information that each access point responds to according to the standard protocol of the target network hotspot; since the network detection management frame information replied by each access point includes the relevant information of each access point, therefore, after receiving each After the network detection management frame information replied by the access point, the authentication work with each access point can be completed in sequence according to the received network detection management frame information, and the authentication information with each access point can be recorded to the preset Access point authentication table; Wherein, the access point authentication table can include the relevant information of the authentication process of each access point; Therefore, by analyzing the access point authentication table, from each access point that has completed the authentication work Determine the first target access point in the access point; and build a network connection with the first target access point; after the first target access point establishes a network connection relationship, in order to ensure the stability of the wireless link, you can follow the preset In the second time period, continue to regularly update the information of the access point authentication table; and analyze the information of the latest access point authentication table at the current moment, and determine from the remaining access points that have completed the authentication work but have not established the access process The second target access point; and determine the difference between the signal strength of the first target access point currently establishing a network connection and the signal strength of the second target access point; then determine the first target access point currently establishing a network connection Whether the difference between the signal strength of the target access point and the signal strength of the second target access point exceeds the preset switching threshold; If the difference between the signal strengths of the access points exceeds the preset switching threshold, it means that the signal strength of the second target access point may be better than the signal strength of the first target access point. Therefore, in order to ensure the signal strength of the wireless link Stability, you can disconnect the network connection with the first target access point and establish the network connection with the second target access point.

From the above introduction, it can be seen that when a wireless network access point needs to be connected, the device provided by the embodiment of the present application can build multiple links, and can quickly switch from the main access point to the backup when the current access point is roaming. roaming access point, and when the standby access point is switched, there is no need to re-establish the access process and authentication process with the standby access point, which can effectively reduce the interaction process with the standby access point and save the current connection The time it takes for the access point to switch to the standby roaming access point effectively reduces the delay of access point switching. Secondly, in the process of switching from the main access point to the standby access point, it can be effectively guaranteed to switch to the backup access point with the strongest signal strength among the many backup access points, which can effectively avoid random access to other non-signal The optimal backup access point makes the wireless link more stable and reliable. Further, this application can also maintain the access point authentication list in real time, maintain the detection function for the current network, and manage the network environment more intelligently, especially suitable for It is suitable for scenarios with high reliability requirements, and can be applied to high-tech fields such as unmanned factories and smart manufacturing with incremental features.

Wherein, for the specific processing flow of each unit included in the above-mentioned wireless network hotspot access device, reference may be made to the relevant introduction of the foregoing wireless network hotspot access method, and details will not be repeated here.

The wireless network hotspot access device provided in the embodiment of the present application can be applied to wireless network hotspot access devices, such as terminals: mobile phones, computers, and the like. Optionally, FIG. 6 shows a block diagram of a hardware structure of a wireless network hotspot access device. Referring to FIG. 6, the hardware structure of the wireless network hotspot access device may include: at least one processor 1, at least one communication interface 2, at least one Memory 3 and at least one communication bus 4.

In the embodiment of the present application, there are at least one processor 1 , communication interface 2 , memory 3 , and communication bus 4 , and the processor 1 , communication interface 2 , and memory 3 communicate with each other through the communication bus 4 .

Processor 1 may be a central processing unit CPU, or a specific integrated circuit ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present application;

The memory 3 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory;

Wherein, the memory stores a program, and the processor can call the program stored in the memory, and the program is used for: implementing each processing flow in the foregoing terminal wireless network hotspot access solution.

The embodiment of the present application also provides a readable storage medium, which can store a program suitable for execution by a processor, and the program is used for: realizing each processing flow of the aforementioned terminal in the wireless network hotspot access solution.

Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the application. Various embodiments can be combined with each other. Therefore, the present application will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A wireless network hotspot access method, comprising:

according to a preset first time period, periodically sending a network probe access request to each access point in a target local area network;

receiving network detection management frame information replied by each access point, wherein the network detection management frame information replied by each access point is information responded by each access point according to a standard protocol of a target network hotspot;

Sequentially completing authentication work with each access point according to the received network detection management frame information, and recording authentication information with each access point to a preset access point authentication table;

analyzing the access point authentication table, and determining a first target access point from the access points which have completed authentication work;

constructing a network connection with the first target access point;

continuously and periodically updating the information of the access point authentication table according to a preset second time period;

analyzing the information of the latest access point identification table at the current moment, and determining a second target access point from the rest access points which have completed authentication work but have not established an access flow;

determining a difference between the signal strength of a first target access point currently establishing network connection and the signal strength of the second target access point;

judging whether the difference value between the signal intensity of the first target access point and the signal intensity of the second target access point which are currently connected with the network exceeds a preset switching threshold value;

if the difference value between the signal intensity of the first target access point and the signal intensity of the second target access point which are currently connected with the network exceeds a preset switching threshold value, disconnecting the network connection with the first target access point and establishing the network connection with the second target access point.

2. The method according to claim 1, characterized in that the method further comprises:

and continuously and periodically updating the network connection with each access point according to a preset third time period so as to ensure that a stable connection relationship is constructed between the target local area network and a wireless network access hot spot.

3. The method of claim 1, wherein said analyzing the access point authentication table to determine a first target access point from among the access points for which authentication has been completed comprises:

analyzing the access point authentication table to determine historical power data of each access point which has completed authentication work;

preprocessing historical power data of each access point respectively, and determining average power of each access point;

sequencing the average power of each access point to obtain a sequencing result of the average power of each access point;

and determining the access point with the highest average power as the first target access point according to the sequencing result of the average power of each access point.

4. The method of claim 1, wherein said sequentially performing authentication with each of said access points based on said received network probe management frame information comprises:

Determining the sequence of the received network detection management frame information sent by each access point according to the received time of the network detection management frame information sent by each access point;

according to the sequence of the received network detection management frame information sent by each access point, firstly carrying out authentication work according to a standard protocol of the target network hotspot by an access point corresponding to the network detection management frame information received first;

after the first access point completes the authentication work, the authentication work is completed according to the sequence of the received network detection management frame information sent by each access point and the rest other access points in turn until the authentication work of the access points corresponding to all the received network detection management frame information is completed.

5. The method of claim 2, wherein the step of determining the position of the substrate comprises,

the preset first time period, the preset second time period and the preset third time period are all set according to application scenes;

wherein the range of the preset first time period is set to be [0.1ms,2.5ms ];

the range of the preset second time period is set to be [0.1ms, 5ms ];

The preset third time period is set to range from 0.1ms to 10 ms.

6. A method according to claim 3, wherein said separately pre-processing historical power data for each of said access points to determine an average power for each of said access points comprises:

according to a preset calculation frequency, carrying out average calculation on the historical power data of each access point to obtain the average power of each access point;

wherein,,

the preset calculation frequency is 3 times.

7. The method according to any one of claims 1-6, applied to a terminal,

the terminal comprises a first data exchange module, a first air interface flow management module, a first wireless control framing module, a first encoding and decoding module and a first radio frequency processing module;

the access point comprises a second data exchange module, a second air interface flow management module, a second wireless control framing module, a second encoding and decoding module and a second radio frequency processing module;

wherein,,

the first data exchange module and the second data exchange module are used for realizing exchange processing of a media access layer of a wired data side;

the first air interface flow management module and the second air interface flow management module are provided with functions of realizing scheduling management of wired media access layer data, including judging data types, determining data priority and scheduling queue;

The first wireless control framing module is used for filling, framing and analyzing a frame structure of an air interface frame structure;

the second wireless control framing module is used for realizing the management of protocols of wireless network hotspots, filling, framing and analyzing the frame structure of the air interface frame structure;

the first encoding and decoding module and the second encoding and decoding module are used for realizing the encoding and decoding functions of a physical layer;

the first radio frequency processing module and the second radio frequency processing module are both used for receiving or transmitting wireless data.

8. A wireless network hotspot access apparatus, comprising:

a request sending unit, configured to periodically send a network probe access request to each access point in the target lan according to a preset first time period;

the information receiving unit is used for receiving the network detection management frame information replied by each access point, wherein the network detection management frame information replied by each access point is information that each access point responds according to a standard protocol of a target network hotspot;

the authentication unit is used for sequentially completing authentication work with each access point according to the received network detection management frame information and recording authentication information of each access point to a preset access point authentication table;

A first analysis unit, configured to analyze the access point authentication table, and determine a first target access point from the access points for which authentication has been completed;

a first connection construction unit, configured to construct a network connection with the first target access point;

a first updating unit, configured to continuously and periodically update information of the access point authentication table according to a preset second time period;

the second analysis unit is used for analyzing the information of the latest access point identification table at the current moment and determining a second target access point from other access points which have completed authentication work but have not established an access flow;

a signal determining unit, configured to determine a difference between a signal strength of a first target access point currently establishing network connection and a signal strength of the second target access point;

the judging unit is used for judging whether the difference value between the signal intensity of the first target access point and the signal intensity of the second target access point for currently establishing network connection exceeds a preset switching threshold value;

and the switching unit is used for disconnecting the network connection with the first target access point and establishing the network connection with the second target access point when the execution result of the judging unit is that the difference value between the signal intensity of the first target access point and the signal intensity of the second target access point which are currently established is determined to exceed a preset switching threshold value.

9. A wireless network hotspot access device, comprising: one or more processors, and memory;

stored in the memory are computer readable instructions which, when executed by the one or more processors, implement the steps of the wireless network hotspot access method of any of claims 1 to 7.

10. A readable storage medium, characterized by: the readable storage medium having stored therein computer readable instructions which, when executed by one or more processors, cause the one or more processors to implement the steps of the wireless network hotspot access method of any of claims 1 to 7.