WO2025145265A1 - Uwb transmission method based on relay technology, electronic device and storage medium - Google Patents

Abstract

The present application provides a UWB transmission method based on a relay technology, an electronic device and a storage medium. The method comprises: determining a plurality of relay nodes between a master device and a slave device; establishing a plurality of transmission paths between the master device and the slave device on the basis of the plurality of relay nodes, wherein on the basis of a UWB internal protocol, connections are established between adjacent relay nodes, between the master device and the corresponding relay node, and between the slave device and the corresponding relay node; acquiring the channel quality of each transmission path on the basis of a preset period or in response to a preset event; and selecting a transmission path with optimal channel quality to execute transmission between the master device and the slave device. According to the present application, the transmission distance between any two adjacent UWB devices is shortened by means of a relay node, so that the problems of signal attenuation and interference in UWB transmission can be ameliorated, helping to ensure the transmission stability and quality over long distances and when signals are obstructed.

Description

UWB transmission method based on relay technology, electronic device and storage medium Technical Field

The present application relates to the technical field of data transmission, and in particular to a UWB (Ultra Wide Band) transmission method, electronic device and storage medium based on relay technology.

Background Art

With the development of wireless communication technology, communication between devices (also known as between devices, such as between computers, between mobile phones, or between mobile phones and computers) can be achieved through local area networks or other near-field communication technologies such as Bluetooth, also known as inter-device communication and inter-device transmission. Inter-device communication allows people to experience the convenience of wireless communication, but it also causes certain inconveniences. One of the current key research and development directions in this field is inter-device communication based on UWB technology. Although this communication method can achieve short-distance wireless high-speed data transmission, it also has the following defects: 1. Signal attenuation. The signal attenuation is serious during the transmission process, affecting the transmission quality and distance; 2. Interference problems. The transmission path is easily interfered by other wireless devices, affecting the reliability and quality of the transmission; 3. Unstable transmission. When transmitting over long distances and the signal is blocked, the signal attenuation and interference problems will be aggravated, making the transmission more unstable.

Summary of the invention

In view of this, the present application provides a UWB transmission method, electronic device, and storage medium based on relay technology, which can improve signal attenuation and interference problems caused by long-distance transmission and signal blocking, and thereby improve the stability and quality of UWB transmission.

The present application provides a UWB transmission method based on relay technology, comprising:

Determine multiple relay nodes between the master device and the slave device;

Establishing a plurality of transmission paths between the master device and the slave device based on the plurality of relay nodes; wherein connections between adjacent relay nodes, between the master device and the corresponding relay node, and between the slave device and the corresponding relay node are all established based on the UWB internal protocol;

Obtaining the channel quality of each transmission path according to a preset period or in response to a preset event;

A transmission path with the best channel quality is selected to perform transmission between the master device and the slave device.

Optionally, determining a plurality of relay nodes between the master device and the slave device includes:

The master device scans and obtains a number of first nodes;

Scan from the device to obtain a number of second nodes;

The master device sends a broadcast packet with its own address but no destination address;

Based on the UWB internal protocol, after receiving the broadcast packet, each first node adds a unique identifier corresponding to the first node into the broadcast packet and sends it out;

The slave device adds its own address to the received broadcast packet and sends it out;

Based on the UWB internal protocol, after receiving the broadcast packet, each second node adds a unique identifier corresponding to the second node into the broadcast packet and sends it out;

When the master device parses the received broadcast packet and obtains the address of the slave device, the first node and the second node with the same unique identifier in the broadcast packet are used as relay nodes.

Optionally, obtaining the channel quality of each transmission path includes:

Determining distances between adjacent devices in each transmission path, the devices including a master device, a slave device, and a relay node;

Determine a transmission path where the distance between any adjacent devices is within a preset threshold;

For a transmission path where the distances between adjacent devices are within a preset threshold, obtaining an average value of the communication parameters between the adjacent devices, and determining the channel quality of the transmission path accordingly;

Optionally, obtaining the channel quality of each transmission path includes:

Obtaining an average value of communication parameters between adjacent devices in each transmission path, the devices including a master device, a slave device, and a relay node;

The channel quality of each transmission path is determined according to the average value of the communication parameter.

Optionally, obtaining the channel quality of each transmission path includes:

Obtaining the core pulse direction of the UWB antenna of each device, the devices including a master device, a slave device and a relay node;

Determine the average of the angular differences of the core pulse directions of adjacent devices in each transmission path;

The channel quality of each transmission path is determined according to the average value of the angle differences.

Optionally, obtaining the core pulse direction of the UWB antenna of each device includes:

Determining a reference plane corresponding to a UWB antenna of the device;

Obtain the pulse wave transmission pattern of the UWB antenna on the corresponding reference plane;

Dividing the pulse wave transmission pattern into a plurality of regions arranged in an array, and obtaining the signal strength difference between each region and an adjacent region in a plurality of directions;

Accumulating the signal strength differences of all regions in the pulse wave transmission pattern in multiple directions;

According to the accumulated sum of the signal strength differences in the multiple directions, a corresponding weight coefficient is assigned to the angle corresponding to each direction;

The sum of the products of the angles corresponding to each direction and the corresponding weight coefficients is taken as the core pulse direction.

Optionally, the multiple directions include a horizontal direction, a vertical direction, and the horizontal direction and the vertical direction. Two bisecting directions between the straight directions.

Optionally, the reference surface includes at least one of the following:

The plane where the radiation unit of the UWB antenna is located;

The plane where the center of the device and the center of the UWB antenna of the device are located.

Optionally, the preset event includes at least one of the following:

The master device and the slave device do not receive each other's information within the preset time;

Determine that the relay node between the master device and the slave device changes;

A transfer event is completed between the master device and the slave device.

The present application provides an electronic device, including a memory and a processor, wherein a UWB transmission program is stored in the memory, and when the UWB transmission program is executed by the processor, corresponding steps of the UWB transmission method based on relay technology as described above are implemented.

The present application provides a storage medium storing a computer program, which, when executed by a processor, performs the corresponding steps of the UWB transmission method based on relay technology as described above.

As described above, the present application establishes several transmission paths between the master device and the slave device based on multiple relay nodes. Connections are established between adjacent relay nodes, between the master device and the corresponding relay nodes, and between the slave device and the corresponding relay nodes based on the UWB internal protocol. While realizing short-distance wireless high-speed data transmission based on UWB technology, the transmission distance between any two adjacent UWB devices is shortened through the relay nodes, thereby improving the signal attenuation and interference problems of UWB transmission, which is conducive to ensuring the transmission stability and quality over long distances and when the signal is blocked.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a flow chart of a UWB transmission method based on relay technology provided in an embodiment of the present application;

FIG2 is a schematic diagram of a transmission path provided in an embodiment of the present application;

FIG3 is a schematic diagram of another transmission path provided in an embodiment of the present application;

FIG4 is a schematic diagram of the present application for determining the angular difference of the core pulse directions of adjacent relay nodes;

FIG5 is a schematic diagram of dividing a pulse wave transmission pattern into multiple regions in the present application;

FIG6 is a schematic diagram of a transmission path for performing UWB transmission provided in an embodiment of the present application;

FIG. 7 is a schematic diagram of another transmission path for performing UWB transmission provided in an embodiment of the present application.

DETAILED DESCRIPTION

In order to solve the above problems existing in the prior art, the present application provides a UWB transmission method, electronic device, and storage medium. These several protected themes are based on the same concept, and the principles of solving the problems are basically the same or similar. The implementation methods of each protected theme can refer to each other, and the repeated parts will not be repeated.

In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly described below in conjunction with specific embodiments and corresponding drawings. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. In the absence of conflict, the following embodiments and their technical features can be combined with each other and also belong to the technical solutions of the present application.

Figure 1 is a UWB transmission method based on relay technology provided by an embodiment of the present application, which may be referred to as a UWB transmission method or method in some places in this article. The applicable scenarios of the present application include but are not limited to multi-device networking, the Internet of Things, etc. Taking the Internet of Things as an example, multiple devices can be formed into an Internet of Things system, and the number of devices included can be determined according to the adaptability of actual needs. The transmission between each device is carried out through UWB technology, which can include the communication behavior of a device directly with only one device, or the communication behavior of a device directly with multiple devices. However, no matter which communication behavior, any two directly communicating devices establish a connection and transmission through the UWB internal protocol.

When executing different services, the role attributes of the same device can be changed, that is, the same device can be used as a master device, a slave device, or a relay node. The so-called master device can be understood as a role of allocation and management in a certain service. The master device can determine the slave device that performs this service. Correspondingly, the so-called slave device can be understood as a role of data obedience allocation and management in this communication transmission service. The relay node can be understood as a transfer station for transmission between the master device and the slave device. These master devices and slave devices can determine each relay node by scanning and searching to execute the method.

The executor of the UWB transmission method of the present application can be any device in the aforementioned Internet of Things system (referred to as the main device in this case), and the specific form of the device includes but is not limited to at least one of the following: smart terminals such as mobile phones; vehicle computers; communication devices or communication modules with UWB functions.

Please refer to FIG. 1 , the UWB transmission method at least includes the following S1 to S4.

S1: Determine multiple relay nodes between the master device and the slave devices.

In one example, a master device obtains a number of first nodes based on a UWB technology scan, and a slave device obtains a number of second nodes based on a UWB technology scan; then, the master device sends a broadcast packet with its own address but without a destination address, and the address of the master device is used as the source address of the broadcast packet, so that the first nodes receiving the broadcast packet know that the broadcast packet is sent by the master device; then, based on the UWB internal protocol, after receiving the broadcast packet, each first node adds a unique identifier corresponding to the first node to the broadcast packet and sends it out, that is, whichever first node receives the broadcast packet adds the unique identifier of the first node itself to the broadcast packet, for example, adds it to the payload field of the broadcast packet, to form a new broadcast packet and send it out; the new broadcast packet The packet is transmitted between other first nodes and eventually transmitted to the slave device, or directly transmitted to the slave device; the slave device adds its own address to the received broadcast packet, forms a new broadcast packet and sends it out; based on the UWB internal protocol, after each second node receives the broadcast packet generated by the slave device, it adds the unique identifier corresponding to the second node to the broadcast packet, forms a new broadcast packet and sends it out; the new broadcast packet is transmitted between other second nodes and eventually transmitted to the master device, or directly transmitted to the master device; the master device parses the received broadcast packet, and when the address of the slave device is obtained through parsing, the first node and the second node with the same unique identifier in the broadcast packet are used as relay nodes.

That is to say, among the broadcast packets received by the master device, the node that forwards both the broadcast packets sent by the master device and the broadcast packets sent by the slave device is regarded as a relay node.

Here, after determining the master device and the slave device each time, this example can automatically determine the relay node in real time according to the networked devices, without the need to pre-set the relay node, which is more in line with the actual scenario requirements. For example, once the networked devices change, including but not limited to increase, decrease, and changes in the signal strength of the device, the master device and the slave device can automatically determine the relay node without human intervention.

The unique identifier can be a fixed identity identifier written by the manufacturer of each device, or it can be a unique identifier uniformly assigned by the management party when networking. In this way, the unique identifier of the same node changes dynamically in different networking environments or when performing different transmission events.

In other examples, for example, for all devices in the network (including master devices and slave devices), the distance between any two devices is within the maximum transmission distance based on UWB technology. For example, other devices in the network except the master device and the slave device are within the maximum transmission distance of the master device based on UWB technology and also within the maximum transmission distance of the slave device based on UWB technology. The present application may directly use the other devices as relay nodes.

A relay node is a device in a network that can establish a connection with a master device or a slave device, but a relay node is not necessarily a device that can process data transmitted between the master device and the slave device. For example, if the data transmitted between the master device and the slave device is encrypted confidential data, each relay node is only responsible for transmission and cannot decrypt the confidential data during relay transmission, thereby improving transmission security. For another example, if video data is transmitted between the master device and the slave device, and the relay node is only a device with sending and receiving functions, it cannot play the video data on the basis of realizing the relay function of the present application.

It should be understood that the present application may also determine the relay node between the master device and the slave device according to other methods, and the above methods are only exemplary descriptions. In addition, the present application may implement any technical feature in two or more ways, which may be combined with each other without conflict.

S2: Establishing several transmission paths between the master device and the slave device based on multiple relay nodes; wherein, between adjacent relay nodes, between the master device and the corresponding relay node, and between the slave device and the corresponding relay node. Connections between nodes are established based on the UWB internal protocol.

Any transmission path includes at least one relay node to perform relay transmission, and the number of relay nodes set for a single transmission path can be determined according to actual needs. In addition, in any transmission path, a single relay node is connected to at most two relay nodes, one as a receiver and the other as a sender, and at least only one relay node is connected, and when only one relay node is connected, the relay node is also connected to the master device or the slave device. Taking Figure 2 as an example, there are four relay nodes in the network, and three transmission paths are set between the master device and the slave device. The first transmission path includes the master device, relay node 1 and the slave device, the second transmission path includes the master device, relay node 2 and the slave device, and the third transmission path includes the master device, relay node 3, relay node 4 and the slave device. Taking Figure 3 as an example, there are five relay nodes in the network, and three transmission paths are set between the master device and the slave device. The first transmission path includes the master device, relay node 1 and the slave device, the second transmission path includes the master device, relay node 2 and the slave device, and the third transmission path includes the master device, relay node 3, relay node 4, relay node 5 and the slave device, wherein relay node 4 connects two relay nodes, relay node 3 can be used as the sender of relay node 4, and relay node 5 can be used as the receiver of relay node 4.

In view of the fact that UWB technology can realize positioning, optionally, the method further includes: displaying the relative positions of each relay node, slave device and master device, and the corresponding transmission path on the master device. The transmission path can be marked by arrow lines as shown in Figures 2 and 3.

The specific display form of the icons of the master device, slave device and each relay node can be determined according to the device type obtained by the master device based on the UWB internal protocol. For example, if the slave device is a speaker, it will be displayed as the icon corresponding to the speaker. If the slave device is a certain brand of vehicle, it will be displayed as the icon corresponding to the brand of vehicle. If a certain relay node is a certain brand of mobile phone, it will be displayed as the icon corresponding to the brand of mobile phone. Here, the user can intuitively obtain information such as the type of each relay node and slave device from the master device.

S3: Obtain the channel quality of each transmission path according to a preset period or in response to a preset event.

The preset event includes at least one of the following:

Event 1: The master device and the slave device do not receive each other's information within the preset time.

Event 2: Determine that a relay node between the master device and the slave device has changed.

Event 3: A transmission event is completed between the master device and the slave device.

In one example, obtaining the channel quality of each transmission path includes the following S311 to S313.

S311: Determine the distance between adjacent devices in each transmission path. The devices include a master device, a slave device, and a relay node. Here, the distance between adjacent devices includes: between the master device and the relay node, between the relay node and the slave device, and for a single transmission path including two relay nodes, also includes between relay nodes.

S312: Determine a transmission path in which the distance between any adjacent devices is within a preset threshold.

S313: For transmission paths where the distances between adjacent devices are within a preset threshold, obtain an average value of the communication parameters between the adjacent devices, and determine the channel quality of the transmission path accordingly.

The distance between adjacent devices (i.e., two directly connected devices) is within the preset threshold, indicating that the transmission distance between adjacent devices is relatively close. Within the preset threshold, the attenuation of the UWB pulse signal is relatively small, and it has a strong anti-interference ability, which can meet the stability and quality requirements of UWB transmission. The present application can determine the specific value of the preset threshold through sampling experiments.

For example, S2 obtains three transmission paths, namely, transmission paths a, b, and c. If there are two adjacent devices in transmission path a whose distance is greater than a preset threshold, S33 is not executed for transmission path a.

The communication parameters include but are not limited to at least one of signal strength, transmission delay, and signal-to-noise ratio. Taking signal strength as an example, the larger the average value of signal strength between adjacent devices, the better the channel quality of the transmission path, and the better the stability and quality when performing UWB transmission. Taking transmission delay as an example, the larger the average value of transmission delay between adjacent devices, the worse the channel quality of the transmission path, and the worse the stability and quality when performing UWB transmission.

In another example, the average value of the communication parameters between adjacent devices in each transmission path can be directly obtained, and the channel quality of each transmission path can be determined based on the average value of the communication parameters. That is, there is no need to use the distance between adjacent devices to determine the channel quality of the transmission path.

In yet another example, the channel quality of each transmission path is obtained, including the following S321 to S323.

S321: Obtain the core pulse direction of the UWB antenna of each device.

S322: Determine the average value of the angular difference of the core pulse direction of adjacent devices in each transmission path. The angular difference of the core pulse direction of adjacent devices refers to: the angular difference of the core pulse direction of the two closest UWB antennas located on the adjacent sides of two adjacent devices. As shown in Figure 4, the UWB antenna 2 of relay node A and the UWB antenna 5 of relay node B are adjacent, and S322 needs to determine the angular difference α of the core pulse direction of UWB antenna 2 and UWB antenna 5.

S323: Determine the channel quality of each transmission path according to the average value of the angle difference.

Among them, for any device, the directions of its UWB antennas are different, and the pulse signal of any UWB antenna in the direction of its own core pulse is the strongest.

In addition to implementing the aforementioned examples, the UWB internal protocol of the present application can also determine the core pulse direction of each UWB antenna of each device, but is not limited thereto.

Since UWB technology is based on short pulse signals to achieve data transmission, the transmission strength of short pulse signals in different directions is different. In one example, the way in which a device determines the core pulse direction of each UWB antenna set by itself may include:

First, determine the reference plane of each UWB antenna of the device, which reference plane can be at least one of the plane where the radiation unit of the UWB antenna is located, the plane where the radiation unit is parallel to the UWB antenna, and the plane where the center of the device and the center of its UWB antenna are located; taking the relay node A shown in Figure 4 as an example, for UWB antenna 2, the plane where the center of relay node A and the center of its UWB antenna 2 are located is the reference plane of UWB antenna 2; the core pulse direction corresponding to each UWB antenna will change as the orientation of the device changes; then, obtain the pulse wave transmission direction diagram of each UWB antenna on the corresponding reference plane, for example, the pulse wave transmission direction diagram of the corresponding type of UWB antenna in the actual environment can be obtained through simulation test The simulation test obtains the pulse wave transmission pattern in 3D form, and then obtains the pulse wave transmission direction on its reference plane, and forms the pulse wave transmission pattern accordingly; then, the pulse wave transmission pattern is divided into a plurality of areas arranged in an array, such as the plurality of rectangular areas shown in FIG5 , and the signal strength difference between each area and the adjacent area in a plurality of directions is obtained; the signal strength differences of all areas in the pulse wave transmission pattern in a plurality of directions are added up, and the accumulated sum is obtained; then, according to the accumulated sum of the signal strength differences in a plurality of directions, the corresponding weight coefficients are respectively assigned to the angles corresponding to the respective directions; finally, the sum of the products of the angles corresponding to the respective directions and the corresponding weight coefficients is taken as the core pulse direction.

As shown in FIG5 , taking the case where the pulse wave transmission pattern of a single UWB antenna is a rectangle, and multiple directions include a horizontal direction, a vertical direction, and two bisecting directions between the horizontal direction and the vertical direction (respectively referred to as a first bisecting direction and a second bisecting direction) as an example, the cumulative sum of the signal strength differences in the horizontal direction is M ₁ , the cumulative sum of the signal strength differences in the vertical direction is M ₂ , the cumulative sum of the signal strength differences in the first bisecting direction is M ₃ , and the cumulative sum of the signal strength differences in the second bisecting direction is M ₄ . According to the ratio of the cumulative sums of the signal strength differences M ₁ , M ₂ , M ₃ , and M ₄ , the corresponding weight coefficients k ₁ , k ₂ , k ₃ , and k ₄ are calculated, and k ₁ +k ₂ +k ₃ +k ₄ =1; the sum S of the products of the angles corresponding to the horizontal direction, the vertical direction, the first bisecting direction, and the second bisecting direction and the corresponding weight coefficients is S=k ₁ *S ₁ +k ₂ *S ₂ +k ₃ *S ₃ +k ₄ *S ₄ , S is the core pulse direction, S ₁ , S ₂ , S ₃ , S ₄ respectively represent the angles corresponding to the horizontal direction, the vertical direction, the first bisecting direction and the second bisecting direction, for example, S ₁ may be 180°, S ₂ may be 90°, S ₃ may be 45°, and S ₄ may be 135°.

The angular difference between the core pulse directions of adjacent devices is then obtained.

For any transmission path, the smaller the average value of the angle difference between the core pulse directions of adjacent devices is, the stronger the signal strength between the adjacent devices is, the better the channel quality of the transmission path is, and the better the stability and quality of the UWB transmission is.

S4: Select a transmission path with the best channel quality to perform transmission between the master device and the slave device.

It should be understood that the present application can also select a transmission path according to user operation to execute the master device and the slave device. Transmission between devices.

Please refer to Figures 2 and 6 together, the first transmission path with relay node 1 is selected to perform transmission between the master device and the slave device. The solid arrow in the figure represents the currently determined transmission path for UWB transmission. Please refer to Figures 2, 6 and 7 together, when a preset event occurs, for example, the third transmission path with relay nodes 3 and 4 is selected to perform UWB transmission.

UWB transmission between a master device and a slave device is also called UWB interaction, including but not limited to: a mobile phone pushing audio or sending control commands to a master device such as a car, providing push and subscription services between two devices, etc.

Based on the above, the present application establishes several transmission paths between the master device and the slave device based on multiple relay nodes. Connections are established between adjacent relay nodes, between the master device and the corresponding relay nodes, and between the slave device and the corresponding relay nodes based on the UWB internal protocol. While realizing short-distance wireless high-speed data transmission based on UWB technology, the transmission distance between any two adjacent UWB devices is shortened through the relay nodes, thereby improving the signal attenuation and interference problems of UWB transmission, which is conducive to ensuring the transmission stability and quality over long distances and when the signal is blocked.

In addition, the present application may also have the following beneficial effects:

1. Multi-path relay enhancement: Use multiple relay nodes set on the transmission path to expand the transmission range and enhance the stability of signal transmission. There can be one or more relay nodes between the transmission starting point (i.e., the master device) and the end point (i.e., the slave device) to form a reliable transmission link. The transmission range can also be extended through multiple relay nodes. If the signal of one relay node deteriorates, it can be switched to other relay nodes.

2. Adaptive signal processing: By real-time analysis of signal parameters, such as the signal-to-noise ratio, the transmission power on the transmission path is dynamically adjusted to adapt to different transmission environments and conditions.

3. Enhanced anti-interference capability: By analyzing the signal spectrum information, determining the interference type, and then adjusting the filter parameters of each relay node to eliminate interference, ensuring the stability and high quality of transmission. At the same time, it can also switch different transmission paths through redundant relay nodes to avoid interference.

4. Self-organizing network: Select the best transmission path according to the current transmission environment and network status. This can be achieved through information exchange and analysis between relay nodes, such as using indicators such as signal strength and transmission delay to select the transmission path, thereby ensuring the stability and continuity of the network.

An embodiment of the present application also provides an electronic device, including a memory and a processor, wherein a UWB transmission program is stored in the memory, and when the UWB transmission program is executed by the processor, steps corresponding to the UWB transmission method based on relay technology in any of the above examples are implemented.

The electronic device can realize the role of the aforementioned master device, slave device or relay node, and the specific form of the electronic device is not limited by this application.

An embodiment of the present application further provides a storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps corresponding to the UWB transmission method based on relay technology as described in any example are implemented.

Among them, the storage medium may include: read-only memory (ROM), random access memory (RAM), disk or CD, etc.

Since the instructions stored in the storage medium can execute the steps in any one of the UWB transmission methods based on relay technology provided in the embodiments of the present invention, the beneficial effects that can be achieved by any one of the UWB transmission methods based on relay technology provided in the embodiments of the present invention can be achieved. For details, please refer to the previous embodiments and will not be repeated here.

The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. For ordinary technicians in this field, all equivalent structural changes made using the contents of this specification and drawings are also included in the patent protection scope of the present application.

This document uses step codes such as S1, S2, etc., the purpose of which is to express the corresponding content more clearly and concisely, and does not constitute a substantial limitation on the order. When technical personnel in this field implement the specific steps, they may execute S2 first and then S1, etc., but these should all be within the scope of protection of this application.

Although the terms "first, second", etc. are used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. In addition, the singular forms "one", "an", and "the" are intended to include plural forms as well. The terms "or" and "and/or" are interpreted as inclusive, or mean any one or any combination. Only when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way, an exception to this definition will occur.

Claims (10)

A UWB transmission method based on relay technology, characterized by comprising: Determine multiple relay nodes between the master device and the slave device; Establishing a plurality of transmission paths between the master device and the slave device based on the plurality of relay nodes; wherein connections between adjacent relay nodes, between the master device and the corresponding relay node, and between the slave device and the corresponding relay node are all established based on the UWB internal protocol; Obtaining the channel quality of each transmission path according to a preset period or in response to a preset event; A transmission path with the best channel quality is selected to perform transmission between the master device and the slave device. The method according to claim 1, characterized in that the step of determining a plurality of relay nodes between the master device and the slave device comprises: The master device scans and obtains a number of first nodes; Scan from the device to obtain a number of second nodes; The master device sends a broadcast packet with its own address but no destination address; Based on the UWB internal protocol, after receiving the broadcast packet, each first node adds a unique identifier corresponding to the first node into the broadcast packet and sends it out; The slave device adds its own address to the received broadcast packet and sends it out; Based on the UWB internal protocol, after receiving the broadcast packet, each second node adds a unique identifier corresponding to the second node into the broadcast packet and sends it out; When the master device parses the received broadcast packet and obtains the address of the slave device, the first node and the second node with the same unique identifier in the broadcast packet are used as relay nodes. The method according to claim 1 or 2, characterized in that The obtaining of the channel quality of each transmission path includes: Determining the distance between adjacent devices in each transmission path, the devices including a master device, a slave device and a relay node; Determine a transmission path where the distance between any adjacent devices is within a preset threshold; For a transmission path where the distances between adjacent devices are within a preset threshold, obtaining an average value of the communication parameters between the adjacent devices, and determining the channel quality of the transmission path accordingly; or, The obtaining of the channel quality of each transmission path includes: Obtaining an average value of communication parameters between adjacent devices in each transmission path, the devices including a master device, a slave device, and a relay node; The channel quality of each transmission path is determined according to the average value of the communication parameter. The method according to claim 1 or 2, characterized in that the obtaining of the channel quality of each transmission path comprises: Obtaining the core pulse direction of the UWB antenna of each device, the devices including a master device, a slave device and a relay node; Determine the average of the angular differences of the core pulse directions of adjacent devices in each transmission path; The channel quality of each transmission path is determined according to the average value of the angle differences. The method according to claim 4, characterized in that the obtaining of the core pulse direction of the UWB antenna of each device comprises: Determining a reference plane corresponding to a UWB antenna of the device; Obtain the pulse wave transmission pattern of the UWB antenna on the corresponding reference plane; Dividing the pulse wave transmission pattern into a plurality of regions arranged in an array, and obtaining the signal strength difference between each region and an adjacent region in a plurality of directions; Accumulating the signal strength differences of all regions in the pulse wave transmission pattern in multiple directions; According to the accumulated sum of the signal strength differences in the multiple directions, a corresponding weight coefficient is assigned to the angle corresponding to each direction; The sum of the products of the angles corresponding to each direction and the corresponding weight coefficients is taken as the core pulse direction. The method according to claim 5, characterized in that the multiple directions include a horizontal direction, a vertical direction, and two bisecting directions between the horizontal direction and the vertical direction. The method according to claim 5, characterized in that the reference surface includes at least one of the following: The plane where the radiation unit of the UWB antenna is located; The plane where the center of the device and the center of the UWB antenna of the device are located. The method according to claim 1, wherein the preset event includes at least one of the following: The master device and the slave device do not receive each other's information within the preset time; Determine that the relay node between the master device and the slave device has changed; A transfer event is completed between the master device and the slave device. An electronic device comprises a memory and a processor, wherein a UWB transmission program is stored in the memory, and when the UWB transmission program is executed by the processor, the UWB transmission method based on relay technology as described in any one of claims 1 to 8 is implemented. A storage medium, characterized in that a computer program is stored on the storage medium, and when the computer program is executed by a processor, the method based on relay technology according to any one of claims 1 to 8 is implemented. UWB transmission method based on technology.