CN102665296A - Device and method for collecting and publishing wireless sensor network data - Google Patents

Abstract

The present invention provides a wireless sensor network data collection and distribution device, including: a processing unit and a data center-oriented communication unit connected to the processing unit, a storage unit and a power supply unit; the data center-oriented communication unit is used for the wireless sensor network Two-way data communication between the data collection and distribution device and the data center; the processing unit is used to receive the data distribution customization command from the data center-oriented communication unit, and after parsing, generate a data distribution customization file and store it in the storage unit; The processing unit is also used to receive the data from the wireless sensor nodes facing the sensor network communication unit, and after analyzing, send the filtered data to the data center communication unit according to the data publishing custom file. The invention also provides corresponding data collection and release methods. The invention can avoid resource waste while satisfying user requirements, and has low complexity and cost.

Description

A wireless sensor network data collection and distribution device and method

technical field

The present invention relates to the technical field of embedded system and wireless sensor network, in particular, the present invention relates to a wireless sensor network data collection and publishing device and method.

Background technique

The wireless sensor network is composed of a large number of cheap micro sensor nodes deployed in the monitoring area, and forms a multi-hop self-organizing network through wireless communication. In recent years, wireless sensor networks have been widely used in environmental monitoring and protection, medical care, military, family and other fields due to their low power consumption, low cost, distributed and self-organizing characteristics.

A sensor network usually consists of sensor nodes, sink nodes and data centers. Among them, the sensor node collects the data (such as temperature, humidity, etc.) in its monitoring area, and sends it to the sink node through wireless multi-hop. Since sensor data cannot be directly recognized by humans, the data collected by the sink node needs to be parsed and published in a format that can be recognized by humans, and finally displayed in the data center. Here, the inability to be directly recognized by people has two meanings. One is that the measured value returned by the sensor may not have physical meaning itself, and needs to be brought into a specific conversion formula to convert it into a value with physical meaning; the other is that the sensor data is transmitted wirelessly During the multi-hop transmission process, data formatting operations (such as encryption, encoding, etc.) may be performed. Correspondingly, data analysis also includes two meanings, one is the conversion of sensor data to physical quantities, and the other is the de-formatting of transmitted data. The data release is to display the parsed sensor data to the user in a specific format (such as data type, display layout, etc.) according to the user's requirements. It can be seen that data collection and release is a bridge between the physical world where the sensor network is located and the world that people can recognize, which is of great significance to the application of sensor networks.

The existing sensor network data collection and release methods are mainly divided into the following three categories: (1) the aggregation node only collects data, and sends the original data to the data center for analysis and release through customized software; (2) the aggregation node conducts Data collection and analysis, sending the analyzed data to the data center for publishing through customized software; (3) the aggregation node collects and analyzes data, and releases data through its own built-in web server, and the data center uses a standard browser Display Data. The above three types of methods all have the following defects: 1) Regardless of whether the user needs it, the sensor node will collect data according to the established data collection cycle and data type, and send all the collected data to the sink node, which often leads to waste of resources , which is not conducive to saving node energy consumption and communication overhead. 2) Regardless of whether the user needs it or not, the aggregation node will push all types of data obtained from all sensor nodes to the data center according to a fixed cycle, resulting in waste of resources. Moreover, it is easy to see that the above two types of methods (1) and (2) need to install customized software in the data center, thus increasing the complexity and cost of data collection and publishing of wireless sensor networks, which is not conducive to the promotion of wireless sensor networks application. Although the method of type (3) reduces the complexity of data collection and publishing of wireless sensor networks, the browser itself cannot automatically refresh the display content as the data is updated, and the user needs to manually refresh the browser to display the latest sensor information. On the one hand, the data is not convenient for users to use, and on the other hand, the latest sensor data cannot be displayed in a timely manner.

Therefore, there is an urgent need for a wireless sensor network data collection and distribution device and method that can meet user needs (data collection and distribution capabilities) while avoiding waste of resources, and has low complexity and cost.

Contents of the invention

An object of the present invention is to provide a wireless sensor network data collection and distribution device and method that can meet user needs and avoid resource waste.

Furthermore, another object of the present invention is to provide a wireless sensor network data collection and distribution device and method with low complexity and cost.

To achieve the purpose of the above invention, the present invention provides a wireless sensor network data collection and publishing device, including: a processing unit and a data center-oriented communication unit connected to the processing unit, a storage unit and a power supply unit; a data center-oriented communication unit It is used for two-way data communication between the wireless sensor network data collection and publishing device and the data center; the processing unit is used to receive the data publishing custom command from the data center-oriented communication unit, and after parsing, generate a data publishing custom file, store to the storage unit; the processing unit is also used to receive data from the wireless sensor nodes facing the sensor network communication unit, and after parsing, send the filtered data to the data center communication unit according to the data publishing custom file.

Wherein, the wireless sensor network data collection and release device also includes a sensor network-oriented communication unit connected to the processing unit, and the sensor network-oriented communication unit is used for the wireless sensor network data collection and release device and wireless Two-way data communication between sensor nodes; the processing unit is also used to receive the sensor network dynamic configuration command from the data center communication unit, after parsing, generate a sensor network data packet according to the sensor network dynamic configuration command, and send it to For sensor network communication unit.

Wherein, the data center-oriented communication unit is used for two-way data communication between the wireless sensor network data collection and publishing device and the browser in the data center.

Wherein, the processing unit is also used to receive feedback information (for example, whether the dynamic configuration is successful) from the sensor nodes of the sensor network-oriented communication unit to the sensor dynamic configuration command, and provide the feedback information to the data center-oriented communication unit after parsing. It is sent to a browser in the data center for display.

The present invention also provides a wireless sensor network system, including: a data center, a wireless sensor network data collection and distribution device and a wireless sensor node, characterized in that the wireless sensor network data collection and distribution device uses the aforementioned wireless sensor network Data collection and distribution device.

The present invention also provides a wireless sensor network data collection and release method based on the foregoing wireless sensor network system, comprising the following steps:

1) Users customize the type, source and release cycle of data release through the data center, and send it to the data collection and release device;

2) The data collection and release device analyzes the custom commands and parameters for data release;

3) The data collection and release device analyzes the data collected by the sensor, and performs data filtering according to the customized content of data release, and sends the filtered data to the data center;

4) Users view customized sensor data through the data center.

Wherein, said step 1) includes the following steps:

11) The user sends a connection establishment data packet to the data center-oriented communication unit of the data collection and release device through the browser of the data center, and establishes a tcp connection between the two;

12) The data collection and publishing device sends the configuration webpage customized for data publishing to the browser in the data center for display;

13) The user publishes customized commands and parameters through the browser configuration data and sends the customized webpage data to the data center-oriented communication unit of the data collection and publishing device.

Wherein, said step 2) includes the following steps:

21) The processing unit of the data collection and release device receives the customized data release commands and parameters from the data center communication unit, and analyzes the customized data release commands and parameters;

22) The processing unit of the data collection and release device generates a data release customization file from the parsed data customization command and parameters and stores it in the storage unit;

23) The processing unit of the data collection and publishing device sends the result of data publishing customization to the data center-oriented communication unit, and sends it to the browser in the data center for display.

Wherein, said step 3) includes the following steps:

31) The data collection and publishing device receives the raw data from the wireless sensor nodes through the sensor network-oriented communication unit;

32) The processing unit of the data collection and release device parses the raw data of the sensor network;

33) The processing unit of the data collection and release device releases customized files according to the data stored in the storage unit, and filters the parsed sensor data;

34) The processing unit of the data collection and release device organizes the parsed and filtered sensor network data, and generates a data display web page;

35) The processing unit of the data collection and publishing device sends the data display webpage to the communication unit facing the data center, and finally sends it to the browser of the data center for display.

The present invention also provides a wireless sensor network dynamic configuration method based on the foregoing wireless sensor network system, comprising the following steps:

101) The user sends connection establishment data to the data collection and distribution device through the data center, and establishes a tcp connection between the two.

102) The data collection and publishing device sends the configuration web page of the dynamic configuration of the sensor network to the data center for display;

103) The user configures the dynamically configured commands and parameters through the browser and sends them to the data collection and publishing device;

104) The data collection and distribution device receives the dynamically configured commands and parameters from the data center, and analyzes the commands and parameters;

105) The processing unit of the data collection and publishing device automatically generates sensor network data packets from the analyzed data and sends them to the sensor network-oriented communication unit;

106) The sensor network-oriented communication unit of the data collection and release device sends the sensor network data packets to the wireless sensor nodes;

107) The data collection and release device receives the feedback information of the sensor nodes on the dynamic configuration command, and sends it to the processing unit for analysis.

108) The data collection and release device sends the dynamic configuration results to the data center for display.

Compared with the prior art, the present invention has the following technical effects:

1. The collection and release device of the present invention independently realizes the collection and analysis of sensor data.

2. In the present invention, the data center does not need to install any customized software, and can display data only by using a browser, so the complexity and cost are relatively low.

3. In the present invention, the published sensor data can be automatically displayed and updated on the browser.

4. The data collection and publishing device of the present invention supports users to dynamically customize the published data type, source and data push cycle through the browser, so as to better meet the user's usage habits (for example, data typesetting format) and dynamic needs, and at the same time Waste of resources is also avoided.

5. The data collection and distribution device of the present invention supports dynamic configuration of sensor node data collection cycle and collection data type, thereby saving node energy consumption and communication overhead while meeting user needs, and avoiding waste of resources.

6. Using the data collection and release device of the present invention makes it easier to build a wireless sensor network system.

Description of drawings

Fig. 1 shows a structural diagram of a wireless sensor network system in one embodiment of the present invention;

FIG. 2 shows a structural diagram of a wireless sensor network data collection and distribution device according to an embodiment of the present invention;

Fig. 3 shows a structural diagram of a processing unit in an embodiment of the present invention;

Figure 4 shows a structural diagram of a power supply unit in one embodiment of the present invention;

Fig. 5 shows the overall flowchart of the data collection and distribution method of an embodiment of the present invention;

Fig. 6 shows the flowchart of the method for customizing data publishing in one embodiment of the present invention;

Fig. 7 shows the flow chart of the data distributing method in one embodiment of the present invention;

Fig. 8 shows the flowchart of the sensor network dynamic configuration method in one embodiment of the present invention;

Fig. 9 shows the flowchart of the sensor node dynamic configuration method in one embodiment of the present invention;

Fig. 10 shows a sample diagram of the layout style of the configuration web page customized for data publishing in one embodiment of the present invention;

Fig. 11 shows a sample diagram of the typesetting style of the data publishing webpage in one embodiment of the present invention;

Fig. 12 shows a sample diagram of a webpage layout style dynamically configured by a sensor network in an embodiment of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

According to an embodiment of the present invention, a wireless sensor network data collection and distribution device is provided. Figure 1 shows the structural diagram of the wireless sensor network system where the wireless sensor network data collection and publishing device is located. As shown in FIG. 1 , the wireless sensor network system includes: (1) a data center 101 ; (2) a wireless sensor network data collection and distribution device 102 ; and (3) a wireless sensor node 103 . The wireless sensor nodes 103 communicate in a wireless manner, and send the data collected by the sensors to the data collection and distribution device 102 in a multi-hop manner. On the one hand, the data collection and distribution device 102 receives the data distribution customization command and the sensor network dynamic configuration command from the data center 101, and sends the dynamic configuration command to the wireless sensor node 103; The data publishing custom command sends the filtered data to the data center 101 and displays it on the browser. The user establishes a tcp connection with the data collection and distribution device 102 through the browser installed in the data center 101, on the one hand, sends custom data distribution commands and sensor network dynamic configuration commands, and on the other hand displays the data collected by the sensor nodes. Communication between the data collection and publishing device 102 and the data center 101 can be done in a wired or wireless manner.

Fig. 2 shows a structure diagram of a wireless sensor network data collection and distribution device according to an embodiment of the present invention, including: a processing unit 203, a data center-oriented communication unit 201 and a sensor network-oriented communication unit 202 respectively connected to the processing unit 203 , a storage unit 204 and a power supply unit 205 .

Among them, the data center-oriented communication unit 201 is responsible for the two-way data communication between the data collection and release device 102 and the browser of the data center 101, which can be wired (including network cable, telephone line, etc.) or wireless (including GPRS, 3G, WIFI, etc. ), it can be off-the-shelf communication equipment or devices, or it can be equipment or devices that have solidified communication technology. The data center-oriented communication unit 201 is connected to the processing unit 203 through electrical signals.

The sensor network-oriented communication unit 202 is responsible for the two-way data communication between the data collection and release device 102 and the wireless sensor node 103, and communicates in a wireless manner (including GPRS, 3G, WIFI, etc.), and can be a shelf communication device or device , can also be a device or device that solidifies communication technology. The sensor network-oriented communication unit 202 is connected to the processing unit 203 through electrical signals.

The processing unit 203 can be a desktop processor or an embedded processor or a device with computing power and an external interface such as FPGA or DSP; The units 205 are connected to each other respectively; they are used to receive the data distribution custom order and the sensor network dynamic configuration command from the data center communication unit 201. The sensor network dynamic configuration command is generated into the sensor network data packet, and sent to the sensor network communication unit 202; the processing unit 203 is also used to receive the data from the wireless sensor node 103 of the sensor network communication unit 202, after parsing, Send the filtered data to the data center-oriented communication unit 201 according to the data publishing customization file.

The storage unit 204 can be a storage medium such as a hard disk, a flash memory chip, an SD card, and a USB device; it is connected with the processing unit 203 by an electric signal; it is responsible for storing the analyzed sensor data, and simultaneously storing the wireless sensor network data collection and distribution device. Required files, including operating system, operating parameters, etc.

Fig. 3 is the structural diagram of the processing unit in one embodiment of the present invention, and this processing unit comprises: browser data receiving module 301, is responsible for setting up connection with the browser of data center 101 and receiving the data from browser; Configuration command parsing module 302, for parsing the sensor network dynamic configuration order and parameter from the browser of data center 101; Network data packet; sensor network data packet sending module 304, is responsible for sensor network data packet is sent to wireless sensor node 103; Data publishing custom parameter parsing module 305, is used for analyzing the sensor data publishing customization of the browser from data center 101 commands and parameters, and generate a data release custom file, which is stored in the storage unit 204; the sensor network data release module 306 is used to organize the parsed and filtered sensor data according to a specific typesetting style; the browser data sending module 307, It is used to send the data organized according to a specific typesetting style to the data center 101, and display it on the browser; the sensor network data filtering module 308 is used to publish customized files according to the data, and filter the parsed sensor data, only Publish the data type and data source specified by the customized file; the sensor network data analysis module 309 is responsible for analyzing the original data of the sensor network and converting it into content that can be recognized by people; the sensor network data collection module 310 is used to receive wireless sensor Raw data sent by the node.

The power supply unit 205 is responsible for energy collection and provides appropriate voltages for other modules. FIG. 4 shows a structural diagram of a power supply unit according to an embodiment of the present invention, and the power supply unit includes: (1) a solar panel 401 ; (2) a solar charge controller 402 ; (3) a storage battery 403 . The solar panel 401 is responsible for the collection of solar energy and the conversion of solar energy to electric energy, and is connected to the solar charge controller 402; Charging state: the storage battery 403 is connected with the solar charge controller 402, and is responsible for converting electrical energy into chemical energy for storage, and converting chemical energy into electrical energy when necessary.

According to an embodiment of the present invention, a method for collecting and distributing wireless sensor network data based on the above wireless sensor network system is also provided. Figure 5 shows the overall flow chart of the wireless sensor network data collection and publishing method, including the following steps:

Step 501: The user customizes the type, source, and data release cycle of the data release through the browser of the data center 101, and sends it to the data collection and release device 102; generally speaking, the type of data release refers to: the sensor The type of physical information collected, such as temperature, humidity, illuminance, etc. The source of data release refers to the ID of the sensor node that collects a certain type of data. For example, in practical applications, there may be multiple sensor nodes that can collect temperature information, and the user can determine which node to use for data release based on factors such as the distance between the node and the measured target, whether the node energy is sufficient, and so on. The data release cycle refers to the update cycle of user-customized sensor data on the browser in the data center, or refers to the cycle in which the collection and release device pushes customized data to the browser in the data center.

Step 502: The data collection and distribution device 102 analyzes the data distribution customization command, generates and stores the data distribution customization file;

Step 503: the data collection and publishing device analyzes the data collected by the sensor node 103, and performs data filtering according to the customized content of data publishing, and sends the filtered data to the browser of the data center 101;

Step 504: The user views the customized sensor data through the browser of the data center 101 .

The above steps 501-502 can be summarized as a customization process of data publishing. Steps 503 to 504 can be summarized as a data release process (which includes a data parsing process).

Fig. 6 shows the flowchart of the customization of data distribution in one embodiment of the present invention, and the customization process of data distribution includes the following steps:

Step 601: The user sends a connection establishment data packet to the data center-oriented communication unit 201 of the data collection and distribution device 102 through the browser of the data center 101, and establishes a tcp connection between the two.

Step 602: The data collection and publishing device 102 organizes the configuration webpage customized for data publishing according to the html format and a specific typesetting style (an example of the layout style of a configuration webpage customized for data publishing is shown in Figure 10), through the data center-oriented The communication unit 201 sends the data to the browser of the data center 101 through the http protocol for display.

Step 603: The user publishes the customized parameters through the browser configuration data and sends the customized webpage data to the data center-oriented communication unit 201 of the data collection and publishing device 102 through the http protocol.

Step 604: The processing unit 203 of the data collection and distribution device 102 receives the data distribution customization command and parameters from the data center-oriented communication unit 201, and analyzes the data distribution customization command and parameters.

Step 605: The processing unit 203 of the data collection and distribution device 102 generates a data distribution customization file from the parsed data customization command and parameters and stores it in the storage unit 205.

Step 606: The processing unit 203 of the data collection and publishing device 102 sends the customized data publishing result to the data center-oriented communication unit 201, and finally sends it to the browser of the data center 101 through the http protocol for display.

Fig. 7 shows a flowchart of a data publishing method in an embodiment of the present invention.

Step 701 : the data collection and distribution device 102 receives the original data from the wireless sensor node 103 through the sensor network-oriented communication unit 202 .

Step 702: The processing unit 203 of the data collection and distribution device 102 analyzes the raw data of the sensor network.

Step 703: The processing unit 203 of the data collection and publishing device 102 publishes a customized file according to the data stored in the storage unit 205, and filters the parsed sensor data.

Step 704: The processing unit 203 of the data collection and publishing device 102 organizes the parsed and filtered sensor network data according to a specific layout style (an example of a data publishing web page layout style is shown in Figure 11), and generates a html format data display web page;

Step 705: The processing unit 203 of the data collection and publishing device 102 sends the data display webpage to the data center-oriented communication unit 201, and finally sends it to the browser of the data center 101 through the http protocol for display.

Fig. 8 shows a flow chart of a sensor network dynamic configuration method in one embodiment of the present invention.

Step 801: The user sends connection establishment data to the data center-oriented communication unit 201 of the data collection and distribution device 102 through the browser of the data center 101, and establishes a tcp connection between the two.

Step 802: The data collection and publishing device 102 organizes the configuration webpage of the dynamic configuration of the sensor network according to the html format and a specific layout style (an example of the layout style of the dynamic configuration webpage of the sensor network is shown in Figure 12), and passes The data center-oriented communication unit 201 sends the data to the browser of the data center 101 through the http protocol for display.

Step 803: The user configures the dynamically configured commands and parameters through the browser and sends them to the data center-oriented communication unit 201 of the data collection and distribution device 102 through the http protocol. Generally speaking, the commands for dynamic configuration include: enable data acquisition, disable data acquisition, and set the acquisition cycle. For the commands of enabling data acquisition and disabling data acquisition, the parameters are both: data type. For the command of setting the collection cycle, its parameter is: cycle time length, the unit can be minutes, seconds or other time units.

Step 804: The processing unit 203 of the data collection and distribution device 102 receives the command and parameters of the dynamic configuration from the data center-oriented communication unit 201, and analyzes the commands and parameters.

Step 805: The processing unit 203 of the data collection and publishing device 102 automatically generates a sensor network data packet from the parsed data, and sends it to the sensor network-oriented communication unit 202 .

Step 806: The sensor network-oriented communication unit 202 of the data collection and distribution device 102 sends the sensor network data packet to the wireless sensor node 103 .

Step 807: The data collection and publishing device 102 receives the sensor node's feedback information on the dynamic configuration command through the sensor network-oriented communication unit 202, and sends it to the processing unit 203 for analysis.

Step 808: The processing unit 203 of the data collection and publishing device 102 sends the dynamic configuration result to the data center-oriented communication unit 201, and finally sends it to the browser of the data center 101 through the http protocol for display.

Fig. 9 shows a flowchart of a method for dynamically configuring sensor nodes in an embodiment of the present invention.

Step 901: the sensor node 103 receives the sensor network dynamic configuration command and parameters sent by the data collection and distribution device 102.

Step 902: The sensor node 103 parses the sensor network dynamic configuration command and parameters.

Step 903: The sensor node 103 dynamically adjusts the data collection cycle and the data collection type according to the sensor network dynamic configuration command and parameters, and stops or resets the data collection clock for a specific data type.

Step 904: the sensor node 103 sends the dynamically configured feedback information to the data collection and distribution device 102.

In the above embodiments, the data collection and distribution device may not interact with the sensor nodes during the customization process, and the customization file generated during the customization process can only be saved on the collection and distribution device, and the sensor data is filtered based on the customization file. That is to say, during the customization process, the sensor network may collect multiple physical quantity information (such as collecting temperature and humidity information at the same time), and the user currently only cares about one of the physical quantity information (such as temperature information), then, through customization, collection and release The device only publishes the physical quantity information (such as temperature information), which can avoid unnecessary data transmission overhead (such as the overhead of transmitting humidity information) to a certain extent. Information that is not of concern to users (such as humidity information) can be stored in the data collection and distribution device or discarded as needed. Since this situation of only focusing on one or a few physical quantities (such as temperature information) may only last for a short period of time, it is not necessary to stop the sensor from collecting other physical quantity information (such as humidity information) at this time.

In the above embodiments, the interaction between the data collection and distribution device and the sensor nodes can be performed during the process of dynamic configuration of the sensor network. The dynamic configuration of the sensor network is used in the following situations: 1) when the user no longer needs to collect a certain physical quantity information (such as temperature information); 2) the current sensor has the ability to collect a certain physical quantity information (such as temperature information) but is not turned on This function, and the user feels the need to observe the physical quantity information (such as temperature information). In the above cases, through dynamic configuration, change the function of the sensor to collect data.

According to the previous description, it is easy to see that the data collection and publishing device of the present invention can support users to dynamically customize the type, source and data push cycle of the published data through the browser, so as to better meet the user's usage habits (for example, data Typesetting format) and dynamic requirements, while also avoiding resource waste. In addition, the data collection and release device of the present invention supports dynamic configuration of sensor node data collection cycle and collection data type, thereby saving node energy consumption and communication overhead while meeting user needs, and avoiding waste of resources.

Professionals can further realize that the units and method steps described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, software, or a combination of the two. In order to clearly illustrate the interoperability of hardware and software Alternatively, in the above description, the composition and method steps of each example have been generally described according to their functions. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different techniques and methods to implement the described functions and methods for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. 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 invention. Therefore, the present invention 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 sensor network data collection and publishing device, comprising: a processing unit and a data center communication unit connected with the processing unit, a storage unit and a power supply unit; the data center communication unit is used for the wireless sensor network data Two-way data communication between the collecting and publishing device and the data center; the processing unit is used to receive the data publishing customization command from the data center-oriented communication unit, and after parsing, generate a data publishing customization file and store it in the storage unit; The processing unit is also used to receive the data from the wireless sensor nodes facing the sensor network communication unit, and after parsing, send the filtered data to the data center communication unit according to the data publishing custom file. 2. The wireless sensor network data collection and distribution device according to claim 1, characterized in that, the wireless sensor network data collection and distribution device also includes a sensor network-oriented communication unit connected with the processing unit, the The sensor network-oriented communication unit is used for two-way data communication between the wireless sensor network data collection and publishing device and the wireless sensor node; the processing unit is also used to receive the sensor network dynamic configuration command from the data center-oriented communication unit , after parsing, the sensor network data packet is generated according to the sensor network dynamic configuration command, and sent to the sensor network-oriented communication unit. 3. The wireless sensor network data collection and distribution device according to claim 2, characterized in that, the data center-oriented communication unit is used for communication between the wireless sensor network data collection and distribution device and the browser in the data center Two-way data communication. 4. wireless sensor network data collection according to claim 3 and release device, it is characterized in that, described processing unit is also used for receiving the feedback information from sensor node facing sensor network communication unit to sensor dynamic configuration command, will The feedback information is parsed and provided to the data center oriented communication unit to send it to the data center browser for display. 5. A wireless sensor network system, comprising: a data center, a wireless sensor network data collection and distribution device and a wireless sensor node, the wireless sensor network data collection and distribution device adopts the described method of claim 1, 2, 3 or 4 Wireless sensor network data collection and distribution device. 6. A wireless sensor network data collection and publishing method based on the wireless sensor network system according to claim 5, comprising the following steps: 1) Users customize the type, source and release cycle of data release through the data center, and send it to the data collection and release device; 2) The data collection and release device analyzes the custom commands and parameters for data release; 3) The data collection and release device analyzes the data collected by the sensor, and performs data filtering according to the customized content of data release, and sends the filtered data to the data center; 4) Users view customized sensor data through the data center. 7. The wireless sensor network data collection and publishing method according to claim 6, wherein said step 1) includes the following steps: 11) The user sends a connection establishment data packet to the data center-oriented communication unit of the data collection and release device through the browser of the data center, and establishes a tcp connection between the two; 12) The data collection and publishing device sends the configuration webpage customized for data publishing to the browser in the data center for display; 13) The user publishes customized commands and parameters through the browser configuration data and sends the customized webpage data to the data center-oriented communication unit of the data collection and publishing device. 8. The method for collecting and publishing wireless sensor network data according to claim 6, wherein said step 2) includes the following steps: 21) The processing unit of the data collection and release device receives the customized data release commands and parameters from the data center communication unit, and analyzes the customized data release commands and parameters; 22) The processing unit of the data collection and release device generates a data release customization file from the parsed data customization command and parameters and stores it in the storage unit; 23) The processing unit of the data collection and publishing device sends the result of data publishing customization to the data center-oriented communication unit, and sends it to the browser in the data center for display. 9. The wireless sensor network data collection and publishing method according to claim 6, characterized in that the step 3) includes the following steps: 31) The data collection and publishing device receives the raw data from the wireless sensor nodes through the sensor network-oriented communication unit; 32) The processing unit of the data collection and release device parses the raw data of the sensor network; 33) The processing unit of the data collection and release device releases customized files according to the data stored in the storage unit, and filters the parsed sensor data; 34) The processing unit of the data collection and release device organizes the parsed and filtered sensor network data, and generates a data display web page; 35) The processing unit of the data collection and publishing device sends the data display webpage to the communication unit facing the data center, and finally sends it to the browser of the data center for display. 10. A wireless sensor network dynamic configuration method based on the wireless sensor network system according to claim 2, comprising the following steps: 101) The user sends connection establishment data to the data collection and distribution device through the data center, and establishes a tcp connection between the two. 102) The data collection and publishing device sends the configuration web page of the dynamic configuration of the sensor network to the data center for display; 103) The user configures the dynamically configured commands and parameters through the browser and sends them to the data collection and publishing device; 104) The data collection and distribution device receives the dynamically configured commands and parameters from the data center, and analyzes the commands and parameters; 105) The processing unit of the data collection and publishing device automatically generates sensor network data packets from the analyzed data and sends them to the sensor network-oriented communication unit; 106) The sensor network-oriented communication unit of the data collection and release device sends the sensor network data packets to the wireless sensor nodes; 107) The data collection and release device receives the feedback information of the sensor nodes on the dynamic configuration command, and sends it to the processing unit for analysis. 108) The data collection and release device sends the dynamic configuration results to the data center for display.

Images