Point-to-point communication method based on UWB technology, and electronic device and storage medium

Abstract

Provided in the present application are a point-to-point communication method based on UWB technology, and an electronic device and a storage medium. The method comprises: a master device finding a plurality of slave devices on the basis of a UWB internal protocol and establishing a connection; on the basis of the UWB internal protocol, the master device determining core pulse directions of UWB antennas that are set by the master device itself and attributes of the slave devices, wherein the orientations of the UWB antennas are different, and a pulse signal of any UWB antenna in the core pulse direction is the strongest; on the basis of at least one of the core pulse directions of the UWB antennas, the attributes of the slave devices and a user operation, the master device determining a target device among the plurality of slave devices; and the master device establishing UWB interaction with the target device. The present application can realize point-to-point communication with high bandwidth, low latency, strong anti-interference performance and low power consumption, thereby improving the transmission rate.

Description

Point-to-point communication method based on UWB technology, electronic equipment, and storage medium Technical Field

[0001] The present application relates to the field of data transmission technology, and in particular to a point-to-point communication method, electronic device, and storage medium based on UWB (Ultra Wide Band) technology. Background Art

[0002] With the development of wireless communication technology, wireless point-to-point communication (also known as inter-device communication) between devices (e.g., between computers, between mobile phones, or between a mobile phone and a computer) can now be achieved through local area networks (LANs) or other near-field communication technologies such as Bluetooth. While wireless point-to-point communication has brought convenience to people, it also introduces certain inconveniences. For example, point-to-point communication based on Bluetooth technology has a relatively low rate, while point-to-point communication based on WiFi technology requires WiFi network coverage and has narrow bandwidth, high latency, weak interference immunity, and high power consumption.

[0003] Summary of the Invention

[0004] In view of this, the present application provides a point-to-point communication method, electronic device, and storage medium based on UWB technology, which can improve the problems of narrow bandwidth, high latency, weak anti-interference ability, high power consumption, and low transmission rate caused by point-to-point communication.

[0005] This application provides a point-to-point communication method based on UWB technology, including:

[0006] The master device searches for several slave devices based on the UWB internal protocol and establishes connections;

[0007] The master device determines, based on the UWB internal protocol, the core pulse direction of each UWB antenna set by the master device and the attributes of each slave device, wherein the orientations of the UWB antennas are different and the pulse signal of any UWB antenna in the core pulse direction is the strongest;

[0008] The master device determines a target device from the plurality of slave devices according to at least one of the core pulse directions of the UWB antennas, the attributes of the slave devices, and a user operation;

[0009] The master device establishes UWB interaction with the target device.

[0010] Optionally, the master device determines the type of each slave device found;

[0011] The master device obtains the distance between it and each slave device;

[0012] Slave devices of a type whose distance from the master device is within a corresponding threshold are acquired and a connection is established, wherein slave devices of the same type correspond to the same threshold, and slave devices of different types correspond to different thresholds.

[0013] Optionally, the master device searches for a plurality of slave devices based on the UWB internal protocol and establishes connections thereto, including:

[0014] The master device determines the type of each slave device found and establishes a connection with the slave device of a preset type; and / or,

[0015] The master device obtains the identifier of each slave device and establishes a connection with the slave device having a preset identifier.

[0016] Optionally, the method further includes: displaying the relative position of each slave device to the master device and whether a connection is established.

[0017] Optionally, the user operation includes selecting a media file requiring interaction, dragging the file to an icon of the slave device, and then releasing the file, wherein the slave device to which the media file is dragged and released is the target device.

[0018] Optionally, the master device determines the core pulse direction of each UWB antenna configured therein, including:

[0019] Determine the corresponding reference plane for each UWB antenna;

[0020] Obtain the pulse wave transmission pattern of each UWB antenna on the corresponding reference plane;

[0021] 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 adjacent regions in a plurality of directions;

[0022] Accumulating the signal strength differences in multiple directions across all regions in the pulse wave transmission pattern;

[0023] Assigning corresponding weight coefficients to the angles corresponding to the respective directions according to the accumulated sum of the signal strength differences in the multiple directions;

[0024] The sum of the products of the angles corresponding to each direction and the corresponding weight coefficients is taken as the core pulse direction.

[0025] Optionally, the multiple directions include a horizontal direction, a vertical direction, and two bisecting directions between the horizontal direction and the vertical direction.

[0026] Optionally, the reference surface includes at least one of the following:

[0027] The plane where the radiation unit of the UWB antenna is located;

[0028] The plane where the center of the main device and the center of the UWB antenna are located.

[0029] The present application provides an electronic device including a memory and a processor. The memory stores a point-to-point communication program. When the point-to-point communication program is executed by the processor, the corresponding steps of the point-to-point communication method based on UWB technology described above are implemented.

[0030] The present application provides a storage medium storing a computer program, which, when executed by a processor, performs the corresponding steps of the point-to-point communication method based on UWB technology as described above.

[0031] As mentioned above, the present application is based on UWB technology for point-to-point communication. UWB technology has the characteristics of ultra-bandwidth, low latency, strong anti-interference and low power consumption. Therefore, it can achieve high-bandwidth, low-latency, strong anti-interference and low-power point-to-point communication, thereby improving the transmission rate. In addition, the present application determines the core pulse direction of each UWB antenna based on the UWB internal protocol. The pulse signal of any UWB antenna in the core pulse direction is the strongest. When selecting the target device according to the core pulse direction, the slave device with the strongest pulse signal between it and the master device can be selected as the target device, which can further improve the transmission rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG1 is a flow chart of a point-to-point communication method based on UWB technology provided in an embodiment of the present application;

[0033] FIG2 is a schematic diagram of the master device displaying the searched slave devices and their relative positions and connection relationships;

[0034] FIG3 is a schematic diagram of the present application dividing the pulse wave transmission pattern into multiple regions;

[0035] FIG4 is a schematic diagram of a UWB antenna of a master device of the present application determining a target device;

[0036] FIG5 is another schematic diagram of a UWB antenna of a master device of the present application determining a target device. DETAILED DESCRIPTION

[0037] To address the aforementioned issues in the prior art, this application provides a point-to-point communication method, electronic device, and storage medium based on UWB technology. These several protected claims are based on the same concept and solve the same or similar problems. The implementation methods of each protected claim can be referenced across the others, and any repetitions will not be repeated here.

[0038] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly described below in conjunction with specific embodiments and corresponding drawings. Obviously, the embodiments described below are only some of the embodiments of this application, not all of them. Unless there is a conflict, the following embodiments and their technical features can be combined with each other and also belong to the technical solutions of this application.

[0039] Figure 1 is a point-to-point communication method based on UWB technology provided by an embodiment of the present application, which may be referred to as a point-to-point communication method or method in some places in this article. The scenarios to which this application is applicable include but are not limited to point-to-point communication scenarios, 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 communication between each device through UWB technology can include one-to-one communication behavior or one-to-many communication behavior, but no matter which communication behavior includes point-to-point communication behavior.

[0040] When executing different services, the role attributes of the same device can change, meaning that the same device can act as both a master and a slave. A master device can be understood as assuming the coordination and management role within a particular service. It can determine which slave devices will perform this service. Correspondingly, a slave device can be understood as fulfilling the data coordination and management role within this communication transmission service. These master devices can scan for slave devices to execute the methods, including the example in Figure 1.

[0041] The executor of the point-to-point communication 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; car computers; communication devices or communication modules with UWB functions.

[0042] Please refer to FIG. 1 , the point-to-point communication method at least includes the following steps S1 to S4 .

[0043] S1: The master device searches for several slave devices based on the UWB internal protocol and establishes connections.

[0044] In one example, the master device can automatically establish a connection with the searched slave device, or automatically (of course, it can also be based on the user's operation on the master device) send a connection request to the searched slave device, and establish a connection after receiving a response from the slave device confirming the connection. If no response is received to confirm the connection or a response from the slave device rejecting the connection is received, no connection is established.

[0045] In another example, the master device may first determine the type of each slave device found and obtain the distance between the master device and each slave device; and then determine which slave device to establish a connection with based on the distance between the master device and each slave device and the type of each slave device.

[0046] For example, a correspondence between each type and a distance threshold can be pre-set, where the thresholds set for slave devices of the same type are the same, while the thresholds set for slave devices of different types are different. Based on this correspondence, slave devices of a type whose distance from the master device is within the corresponding threshold (also known as the distance threshold) are retrieved and connected to the master device. For example, if a slave device A of a first type and a slave device B of a second type are searched for, there is a first distance between the master device and slave device A, and a second distance between the master device and slave device B. If the first distance is greater than the first threshold corresponding to the first type, the master device and slave device A will not establish a connection. If the second distance is less than or equal to the second threshold corresponding to the second type, the master device and slave device B will establish a connection.

[0047] In another example, the master device determines the type of each slave device and establishes a connection with a slave device of a preset type. For example, a mobile phone (i.e., the master device) can search for multiple slave devices such as mobile phones and vehicles, but only establishes a connection with the vehicle.

[0048] In another example, the master device obtains the identifiers of each slave device and establishes a connection with the slave device with a preset identifier. For example, a mobile phone (i.e., the master device) can search for multiple slave devices such as mobile phone 1, mobile phone 2, vehicle 3, and vehicle 4, but only establishes a connection with vehicle 3 with a preset identifier. The preset identifier can be a unique identity identifier of the slave device and can be pre-recorded in the master device. For example, a user's vehicle can be pre-bound to their mobile phone so that the preset identifier is recorded in the mobile phone. When the mobile phone (as the master device) searches for the vehicle, once it determines that the vehicle's identifier is consistent with the recorded preset identifier, it can automatically establish a connection with the vehicle, while not establishing a connection with other vehicles in the parking environment.

[0049] Each of the slave devices S2 to S4 is a slave device that establishes a connection with the master device.

[0050] It should be understood that the master device can also select a slave device to establish a connection based on other methods, and the above method is only an exemplary description. Moreover, two or more methods can be combined with each other when they do not conflict, so as to select a slave device to establish a connection. For example, the master device selects a slave device based on the type and identification of each slave device and establishes a connection with it. In a specific scenario, vehicle 3 with a preset identification can be selected to establish a connection, while vehicle 4 is not connected. Alternatively, if a mobile phone (i.e., the master device) searches for multiple slave devices such as mobile phone 1, mobile phone 2, vehicle 3, and vehicle 4, it can select mobile phone 1 with a preset identification and vehicle 3 to establish a connection, while mobile phone 2 and vehicle 4 are not connected.

[0051] Given that UWB technology can achieve positioning, optionally, the method further includes: displaying the relative position of each slave device to the master device and whether a connection is established on the master device. For example, in the scenario shown in FIG2 , the screen of the master device can display icons of the master device and several currently searched slave devices (i.e., slave devices A, B, C, D, and E). If a double-arrow connecting line is shown between any two devices, it means that a connection has been established between the two devices, while if a double-arrow connecting line is not shown, it indicates that the slave device has only been searched by the master device but no connection has been established. The specific form of the icon can be determined based on the type of slave device obtained by the master device based on the UWB internal protocol. For example, if slave device A is a stereo, the icon corresponding to the stereo is displayed. If slave device E is a certain brand of vehicle, the icon corresponding to the brand of vehicle is displayed. If slave devices B, C, and D are a certain brand of mobile phone, the icon corresponding to the brand of mobile phone is displayed. In this way, the user can intuitively know the type of each slave device and other information from the master device.

[0052] In other examples, the master device may only display the icons of slave devices currently connected to it and their relative positions to the master device.

[0053] According to the posture information of the master device, the master device can also change the posture information of the displayed master device icon in real time, so that the user can intuitively know the relevant information.

[0054] S2: The master device determines the core pulse direction of each UWB antenna set by itself and the attributes of each slave device based on the UWB internal protocol. Among them, the orientations of each UWB antenna are different, and the pulse signal of any UWB antenna in its own core pulse direction is the strongest.

[0055] In addition to implementing the various examples of S1, the UWB internal protocol of this application can also determine the core pulse direction of each UWB antenna of the master device and the attributes of each slave device, but is not limited thereto. Optionally, the attribute is used to identify whether the corresponding slave device is a storage device or an audio device.

[0056] For the method of obtaining the attributes of each slave device, please refer to the existing technology and will not be described in detail here.

[0057] Since UWB technology uses short pulse signals to transmit data, the transmission strength of short pulse signals varies in different directions. In one example, the master device may determine the core pulse direction of each of its own UWB antennas by:

[0058] First, a reference plane is determined for each UWB antenna. The 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 main device and the center of the UWB antenna are located. Taking the scenario shown in FIG4 as an example, for UWB antenna 2, the plane where the center of the main device and the center of 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 main device changes. Then, the pulse wave transmission pattern of each UWB antenna on the corresponding reference plane is obtained. For example, the pulse wave transmission pattern of the corresponding type of UWB antenna in the actual environment can be obtained through simulation testing. The simulation test obtains a 3D pulse wave transmission pattern, and then the pulse wave transmission pattern on its reference plane is obtained. The pulse wave transmission direction is determined, and a pulse wave transmission pattern is formed thereby; 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 FIG3 , 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 accumulated, and the accumulated sum is obtained; then, according to the accumulated sum of the signal strength differences in a plurality of directions, corresponding weight coefficients are 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.

[0059] As shown in FIG3 , taking the pulse wave transmission pattern of a single UWB antenna as a rectangle, and multiple directions including the horizontal direction, the vertical direction, and the two bisecting directions between the horizontal direction and the vertical direction (respectively referred to as the first bisecting direction and the second bisecting direction) as an example, the cumulative sum of the signal strength differences in the horizontal direction is M1, the cumulative sum of the signal strength differences in the vertical direction is M2, the cumulative sum of the signal strength differences in the first bisecting direction is M3, and the cumulative sum of the signal strength differences in the second bisecting direction is M4. According to the ratio of the cumulative sums of the signal strength differences M1, M2, M3, and M4, Calculate the corresponding weight coefficients k1, k2, k3, and k4, and k1+k2+k3+k4=1; the sum S of the products of the angles corresponding to the horizontal direction, vertical direction, first bisecting direction, and second bisecting direction and the corresponding weight coefficients, that is, S=k1*S1+k2*S2+k3*S3+k4*S4, S is the core pulse direction, S1, S2, S3, and S4 represent the angles corresponding to the horizontal direction, vertical direction, first bisecting direction, and second bisecting direction, respectively, for example, S1 can be 180°, S2 can be 90°, S3 can be 45°, and S4 can be 135°.

[0060] S3: The master device determines a target device from the plurality of slave devices according to the core pulse direction of each UWB antenna, the attributes of each slave device, and at least one of a user operation.

[0061] In one example, the master device can determine the slave device located in the core pulse direction of each UWB antenna as the target device. Taking Figure 4 as an example, the master device is provided with three UWB antennas, namely UWB antennas 1, 2, and 3 on the left, right, and bottom sides of the master device. For UWB antenna 2, slave device C located in the core pulse direction of UWB antenna 2 is determined as the target device. Although slave device B and UWB antenna 2 are both located on the right side of the master device and are closest to UWB antenna 2, slave device B is not regarded as the target device.

[0062] In another example, a slave device whose angle with the core pulse direction of each UWB antenna is within a preset threshold is selected and determined as the target device. Taking the UWB antenna 2 shown in Figure 5 as an example, slave device B moves from the position shown in Figure 4 to the position shown in Figure 5, where the icon of slave device B shown in solid line represents the position after the move, and the icon of slave device B shown in dotted line represents the position before the move. The so-called angle can be understood as: the angle α between the center connection line L of the master device and slave device B and the core pulse direction of UWB antenna 2; or, the angle between the connection line between the two closest UWB antennas of the master device and slave device B, such as the connection line between UWB antenna 2 and UWB antenna 0 of slave device B (not shown in the figure) in Figure 5, and the core pulse direction of UWB antenna 2.

[0063] The master device determines the target device from the plurality of slave devices based on the attributes of each slave device, and optionally selects the corresponding slave device as the target device based on the type of data to be transferred. For example, if audio media files need to be transferred, an audio device is selected as the target device.

[0064] In a scenario where a master device determines a target device from among multiple slave devices based on a user operation, the user operation can be specifically manifested as selecting a media file to be interacted with, dragging it to a slave device icon, and then releasing it. The slave device to which the media file was dragged and released becomes the target device. Therefore, the present application can simultaneously determine the target device and the transfer of the media file through a single user operation.

[0065] S4: The master device establishes UWB interaction with the target device.

[0066] The UWB interaction includes but is not limited to: at least one of: a mobile phone pushing audio or sending control commands to a main control device such as a car, and providing push and subscription services between two devices.

[0067] Based on the above, this application implements the above-mentioned point-to-point communication method based on UWB technology. UWB technology has the advantages of low system complexity, low power spectrum density of transmitted signals, insensitivity to channel fading, low interception capability, and high positioning accuracy. It is particularly suitable for high-speed wireless access in dense multipath locations such as indoors. Therefore, the method provided by this application and the devices connected based on this method can achieve high-bandwidth, low-latency, strong anti-interference and low-power point-to-point communication, thereby improving the transmission rate.

[0068] In addition, the present application determines the information required for the above S1 to S4 based on the UWB internal protocol, especially the core pulse direction of each UWB antenna. The pulse signal of any UWB antenna in the core pulse direction is the strongest. When selecting the target device according to the core pulse direction, the slave device with the strongest pulse signal with the master device can be selected as the target device, which can further improve the transmission rate.

[0069] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein the memory stores a communication program, and when the communication program is executed by the processor, the steps of the point-to-point communication method based on UWB technology as described in any of the above examples are implemented. The electronic device can play the role of the aforementioned master device or slave device, and the specific form of the electronic device is not limited by this application.

[0070] 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 of the point-to-point communication method based on UWB technology as described in any example are implemented.

[0071] The storage medium may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0072] Since the instructions stored in the storage medium can execute the steps in any one of the point-to-point communication methods based on UWB technology provided in the embodiments of the present invention, the beneficial effects that can be achieved by any one of the point-to-point communication methods based on UWB technology provided in the embodiments of the present invention can be achieved. Please refer to the previous embodiments for details and will not be repeated here.

[0073] The above descriptions are only some embodiments of the present application and do not limit the patent scope of the present application. For ordinary technicians in this field, any equivalent structural changes made using the contents of this specification and drawings are also included in the patent protection scope of the present application.

[0074] This document uses step codes such as S1 and S2 for the purpose of expressing the corresponding content more clearly and concisely, and does not constitute a substantial limitation on the order. Those skilled in the art may execute S2 first and then S1 during specific implementation, but these should all be within the scope of protection of this application.

[0075] Although the terms "first," "second," and the like are used herein to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. In addition, the singular forms "a," "an," and "the" are intended to include the plural forms as well. The terms "or" and "and / or" are to be interpreted as inclusive, meaning any one or any combination. Exceptions to this definition occur only when a combination of elements, functions, steps, or operations is inherently mutually exclusive in some manner.

Claims

1. A point-to-point communication method based on UWB technology, characterized in that, Including: The master device searches for several slave devices based on the UWB internal protocol and establishes a connection. The master device determines the core pulse directions of each UWB antenna set by itself and the attributes of each slave device based on the UWB internal protocol. Among them, the orientations of each UWB antenna are different, and the pulse signal of any UWB antenna is the strongest in its own core pulse direction. The master device determines a target device from the several slave devices according to at least one of the core pulse directions of each UWB antenna, the attributes of each slave device, and the user operation. The master device establishes UWB interaction with the target device.

2. The method according to claim 1, wherein The master device searches for several slave devices based on the UWB internal protocol and establishes a connection, including: The master device determines the types of each slave device searched. The master device obtains the distances from itself to each slave device. Obtain the slave devices of the type whose distances from the master device are within the corresponding thresholds and establish a connection, where slave devices of the same type correspond to the same threshold, and slave devices of different types correspond to different thresholds.

3. The method according to claim 1, characterized in that The master device searches for several slave devices based on the UWB internal protocol and establishes a connection, including: The master device determines the types of each slave device searched and establishes a connection with the slave devices of a preset type; and / or, The master device obtains the identifiers of each slave device and establishes a connection with the slave device having a preset identifier.

4. The method according to any one of claims 1 to 3, characterized in that, The method further includes: displaying the relative positions of each slave device and the master device and whether a connection is established.

5. The method according to claim 4, characterized in that, The user operation includes selecting a media file to be interacted with, dragging it to the icon of a slave device, and then releasing it, where the slave device to which the media file is dragged and released is the target device.

6. The method according to claim 1, characterized in that, The manner in which the master device determines the core pulse directions of each UWB antenna set by itself includes: Determine the reference plane corresponding to each UWB antenna. Obtain the pulse wave transmission direction diagram of each UWB antenna on the corresponding reference plane. Divide the pulse wave transmission direction diagram into a plurality of regions arranged in an array, and obtain the signal intensity differences between each region and adjacent regions in multiple directions. Accumulate the signal intensity differences of all regions in the pulse wave transmission direction diagram in multiple directions. According to the sum of the signal intensity differences in multiple directions, assign corresponding weight coefficients to the included angles corresponding to each direction. Take the sum of the products of the included angles corresponding to each direction and the corresponding weight coefficients as the core pulse direction.

7. The method according to claim 6, wherein The multiple directions include the horizontal direction, the vertical direction, and two bisecting directions between the horizontal direction and the vertical direction.

8. The method according to claim 6 or 7, characterized in that The reference plane 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 master device and the center of the UWB antenna are located.

9. An electronic device, comprising a memory and a processor, characterized in that, A communication program is stored on the memory, and when the communication program is executed by the processor, it implements the point-to-point communication method based on UWB technology according to any one of claims 1 to 8.

10. A storage medium, characterized in that, A computer program is stored on the storage medium, and when the computer program is executed by the processor, it implements the point-to-point communication method based on UWB technology according to any one of claims 1 to 8.

Images