Antenna switching method and Beidou antenna

Abstract

The present application relates to an antenna switching method and Beidou antenna, the method includes selecting multiple antennas in an antenna matrix in response to a received first communication signal, the selected multiple antennas are recorded as directional antennas; using directional antennas to construct a receiving antenna matrix and determine the sending position of the first communication signal and send a second communication signal to a terminal located at the sending position and establish a communication relationship, when selecting an antenna in the antenna matrix, it also includes obtaining the sending signal frequency and sending signal strength of all antennas in the antenna matrix and selecting a directional antenna according to the signal strength difference and signal frequency difference between the second communication signal and the sending signal. The antenna switching method and Beidou antenna disclosed in the present application determine the relative position relationship by quickly selecting the antenna matrix and processing the received signal, and then perform directional data transmission, so as to realize small-range directional communication between two monomers.

Description

Technical Field

[0001] The present application relates to the field of data processing technology, and in particular to an antenna switching method and a Beidou antenna. Background Art

[0002] With the development of technology and the expansion of usage scenarios, the advantages of small aircraft have become increasingly obvious. Taking drone swarm technology as an example, drone swarm refers to the comprehensive integration of low-cost small drones with multiple mission payloads based on an open system architecture, with communication network information as the center, the system's group intelligence emergence capability as the core, the collaborative interaction capability between platforms as the foundation, and the node combat capability of a single platform as the support, to build a combat network system with advantages such as anti-destruction, low cost, decentralization and intelligent attack characteristics.

[0003] The development directions of drone swarms include decentralization, autonomous decision-making, and single / micro-group execution. This is mainly reflected in the fact that drone swarms can autonomously perform tasks based on their perception of the scene. A core technical point of the above content is local directional communication.

[0004] Local directional communication refers to the directional data transmission (communication) between drone units. The advantage of this method is that it does not require range broadcasting and is not easily interfered with, reducing the probability of being discovered. However, how to quickly locate within a small range still needs further research. Summary of the invention

[0005] In order to solve the problem of rapid positioning between cells, the present application provides an antenna switching method and a Beidou antenna, which determines the relative position relationship by quickly selecting the antenna matrix and processing the received signal, and then performs directional data transmission to achieve small-range directional communication between two cells.

[0006] The above-mentioned purpose of the present application is achieved through the following technical solutions:

[0007] In a first aspect, the present application provides an antenna switching method, comprising:

[0008] In response to the received first communication signal, selecting a plurality of antennas in the antenna matrix, the selected plurality of antennas being recorded as directional antennas;

[0009] Using directional antennas to construct a receiving antenna matrix and determine a sending location of the first communication signal;

[0010] Sending a second communication signal to a terminal located at the sending position and establishing a communication relationship;

[0011] When selecting an antenna in the antenna matrix, the following steps are also included:

[0012] Obtain the transmit signal frequency and transmit signal strength of all antennas in the antenna matrix;

[0013] A directional antenna is selected according to a signal strength difference and a signal frequency difference between the second communication signal and the transmitted signal.

[0014] In a possible implementation manner of the first aspect, selecting multiple antennas in the antenna matrix includes:

[0015] Select directional transition antennas in the antenna matrix, and the directional transition antennas are located on the same straight line;

[0016] Obtaining a receiving signal of each directional transition antenna over a time length;

[0017] The received signals are superimposed and screened to obtain the transition communication signal of each directional transition antenna;

[0018] Calculating a change direction of a peak interval of a transient communication signal and determining a sending direction of the first communication signal according to the change direction of the peak interval of the transient communication signal;

[0019] reselecting the directional transition antenna multiple times and obtaining the sending directions of multiple first communication signals;

[0020] Determine a rough sending position of the first communication signal using the obtained sending directions of the plurality of first communication signals;

[0021] A plurality of antennas are selected in the antenna matrix according to the rough transmission position.

[0022] In a possible implementation manner of the first aspect, in a direction away from the rough transmission position, the distance between adjacent antennas tends to increase.

[0023] In a possible implementation manner of the first aspect, when the received signals are superimposed and screened, the method further includes:

[0024] Selecting a plurality of peak points on the received reception signal, the positions of the corresponding peak points on each of the received reception signals being the same;

[0025] Superimposing the received signals;

[0026] The received signal is moved on the timeline according to the corresponding peak point so that the height of the corresponding peak point is maximized.

[0027] In a possible implementation manner of the first aspect, when calculating the change direction of the peak interval of the transition communication signal, the method further includes:

[0028] Construct a wavelet and use the wavelet to filter the received signal to obtain a separated waveform;

[0029] The obtained separated waveforms are grouped to obtain a plurality of separated waveform groups, wherein the time intervals between any two adjacent separated waveforms in each separated waveform group are equal;

[0030] The starting time point in the separated waveform group is determined and the peak interval change direction of the transition communication signal is calculated according to the starting time point in the separated waveform group.

[0031] In a possible implementation manner of the first aspect, selecting multiple antennas in an antenna matrix according to the rough transmission position includes:

[0032] Establishing a selection direction on the antenna matrix based on the rough transmission position;

[0033] In the selected direction, a directional antenna is selected according to a signal strength difference and a signal frequency difference between the second communication signal and the transmitted signal.

[0034] In a possible implementation manner of the first aspect, selecting a directional antenna in a selected direction according to a signal strength difference and a signal frequency difference between the second communication signal and the transmitted signal further includes:

[0035] Calculate the new frequency that may be generated by the strength of the second communication signal and the strength of the transmission signal of the directional antenna;

[0036] Check whether the new frequency falls within the operating frequency range of the sending location;

[0037] Select a directional antenna based on the verification result so that the generated new frequency does not fall into the working frequency range of the sending position or falls into the working frequency range of the sending position in small amounts;

[0038] The obtained directional antennas are located on a plurality of straight lines, and the directional antennas belonging to the same straight line use a directional signal transmission method to send a second communication signal to a terminal located at a transmission position.

[0039] In a second aspect, the present application provides an antenna switching device, comprising:

[0040] A first selection unit, configured to select a plurality of antennas in the antenna matrix in response to a received first communication signal, wherein the selected plurality of antennas are recorded as directional antennas;

[0041] A processing unit, configured to construct a receiving antenna matrix using a directional antenna and determine a sending position of the first communication signal;

[0042] A communication unit, used to send a second communication signal to a terminal located at a sending position and establish a communication relationship;

[0043] A data acquisition unit, used to acquire the transmission signal frequency and transmission signal strength of all antennas in the antenna matrix;

[0044] The second selection unit is used to select a directional antenna according to a signal strength difference and a signal frequency difference between the second communication signal and the transmission signal.

[0045] In a third aspect, the present application provides a Beidou antenna, the system comprising:

[0046] Multiple antenna units for sending and receiving signals;

[0047] one or more memories for storing instructions; and

[0048] One or more processors are used to call and execute the instructions from the memory to drive multiple antenna units to execute the method described in the first aspect and any possible implementation of the first aspect.

[0049] In a fourth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium comprises:

[0050] Program, when the program is executed by a processor, the method described in the first aspect and any possible implementation of the first aspect is executed.

[0051] In a fifth aspect, the present application provides a computer program product, comprising program instructions. When the program instructions are executed by a computing device, the method described in the first aspect and any possible implementation of the first aspect is executed.

[0052] In a sixth aspect, the present application provides a chip system, which includes a processor for implementing the functions involved in the above aspects, for example, generating, receiving, sending, or processing the data and / or information involved in the above methods.

[0053] The chip system may be composed of chips, or may include chips and other discrete devices.

[0054] In a possible design, the chip system also includes a memory, which is used to store necessary program instructions and data. The processor and the memory can be decoupled and respectively set on different devices, connected by wired or wireless means, or the processor and the memory can also be coupled on the same device.

[0055] The beneficial effects of this application are:

[0056] The antenna switching method disclosed in the present application can perform directional communication in a small range without the need for regional broadcasting, which not only reduces the probability of being discovered, but also can concentrate signal energy to obtain better communication quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1It is a schematic block diagram of the steps of an antenna switching method provided in the present application.

[0058] Figure 2 This is a schematic diagram of a first terminal sending a first communication signal provided by the present application.

[0059] Figure 3 This is a schematic diagram provided by the present application of a second terminal sending a second communication signal after receiving a first communication signal.

[0060] Figure 4 This is a schematic diagram of selecting a directional transition antenna in an antenna matrix provided by the present application.

[0061] Figure 5 This is a schematic diagram of the principle that different signal receiving times exist at different locations, as provided by the present application.

[0062] Figure 6 This is a signal comparison schematic diagram provided by the present application showing that there are differences in the time at which signals are received at different locations.

[0063] Figure 7 This is a schematic diagram provided by the present application in which a received signal is mixed with an identification time mark.

[0064] Figure 8 This is a schematic diagram provided by the present application for selecting multiple antennas in an antenna matrix according to a rough transmission position. DETAILED DESCRIPTION

[0065] The technical solution in this application is further described in detail below in conjunction with the accompanying drawings.

[0066] This application discloses a method for switching antennas. Figure 1 In some examples, the antenna switching method disclosed in the present application includes the following steps:

[0067] S101, in response to a received first communication signal, selecting a plurality of antennas in an antenna matrix, the selected plurality of antennas being recorded as directional antennas;

[0068] S102, constructing a receiving antenna matrix using a directional antenna and determining a sending position of a first communication signal;

[0069] S103, sending a second communication signal to a terminal located at a sending position and establishing a communication relationship;

[0070] When selecting an antenna in the antenna matrix, the following steps are also included:

[0071] Obtain the transmit signal frequency and transmit signal strength of all antennas in the antenna matrix;

[0072] A directional antenna is selected according to a signal strength difference and a signal frequency difference between the second communication signal and the transmitted signal.

[0073] The antenna switching method disclosed in this application is mainly used for point-to-point communication between drone (small aircraft) swarms, that is, the small-range directional communication between two monomers mentioned above. The advantage of small-range directional communication is that it does not require regional broadcasting, which reduces the probability of being discovered. Especially when there is a lot of electromagnetic interference in the surrounding environment, directional communication can concentrate signal energy and obtain better communication quality.

[0074] The present application involves two terminals (small aircraft) during implementation, which are referred to as the first terminal and the second terminal. The first terminal sends a first communication signal. Figure 2 As shown, Figure 2 The dotted circle in the figure indicates the transmission range of the first communication signal. After receiving the first communication signal, the second terminal sends a second communication signal and establishes a communication relationship. Figure 3 Arrow in the.

[0075] Specifically, in step S101, after receiving the first communication signal, the second terminal selects multiple antennas in the antenna matrix. The selected multiple antennas are recorded as directional antennas. The function of the directional antennas is to determine the direction of the first communication signal.

[0076] After determining the directional antenna, execute step S102, in which the directional antenna is used to construct a receiving antenna matrix and determine the sending position of the first communication signal, and then send the second communication signal to the terminal at the sending position and establish a communication relationship, which is the content of step S103.

[0077] From the above description, it can be seen that the antenna switching method in the present application can realize the directional and rapid establishment of communication relationships between terminals. Specific application scenarios include discrete drone formations, autonomous teaming of drones, and autonomous teaming of drone swarms after being dispersed. In the above application scenarios, one or more drones (first terminals) initiate a teaming request, and other drones (second terminals) quickly confirm the location direction of the teaming request after receiving the teaming request and establish a communication relationship in a directional manner.

[0078] Under the premise of limiting the sending power of teaming requests, small-scale sending of teaming requests can be achieved. Combined with the method of establishing communication relationships, point-to-point directional communication can be directly realized.

[0079] When selecting an antenna in the antenna matrix, the following steps are added:

[0080] Obtain the transmit signal frequency and transmit signal strength of all antennas in the antenna matrix;

[0081] A directional antenna is selected according to a signal strength difference and a signal frequency difference between the second communication signal and the transmitted signal.

[0082] The purpose of the above two steps is to reduce the mutual interference between signals. This is because if the strength difference between the two signals is large, the lower strength signal is easily interfered. In addition, if the frequencies of the high-intensity signal and the low-intensity signal are similar, or their frequency difference is an integer multiple of a certain signal, then intermodulation interference is more likely to occur between them. These interferences need to be avoided as much as possible.

[0083] In some examples, multiple antennas are selected in the antenna matrix in the following manner:

[0084] S201, selecting directional transition antennas in an antenna matrix, where the directional transition antennas are located on the same straight line;

[0085] S202, obtaining a receiving signal of each directional transition antenna over a time length;

[0086] S203, superimposing and screening the received signals to obtain a transition communication signal of each directional transition antenna;

[0087] S204, calculating a change direction of a peak interval of a transient communication signal and determining a sending direction of the first communication signal according to the change direction of the peak interval of the transient communication signal;

[0088] S205, reselecting the directional transition antenna multiple times and obtaining the sending directions of multiple first communication signals;

[0089] S206, using the obtained sending directions of the plurality of first communication signals to determine a rough sending position of the first communication signal;

[0090] S207: Select multiple antennas in the antenna matrix according to the rough transmission position.

[0091] In the contents of step S201 to step S203, firstly, multiple antennas located on the same straight line are selected in the antenna matrix, see Figure 4 , Figure 4 The dotted cross in the figure indicates the selected antenna. The directional transition antennas need to be located on the same straight line to roughly determine the direction of the received signal.

[0092] After the directional transition antenna is selected, the received signal of each directional transition antenna is obtained over a time length, and the start time and the end time of the received signal obtained at this time are the same.

[0093] The received signals are then superimposed and screened to obtain the transition communication signal of each directional transition antenna. The transition communication signal can amplify the signal difference of the received signal. The purpose of amplification is to facilitate subsequent identification and processing.

[0094] In step S204, refer to Figure 5 and Figure 6 , the peak interval change direction of the transition communication signal is calculated and the sending direction of the first communication signal is determined according to the peak interval change direction of the transition communication signal. This is because the different positions of the directional transition antennas result in different distances between the directional transition antennas and the signal sending position. The time it takes for the directional transition antenna to receive the received signal ( Figure 6 There will be differences between T1 and T2 in the diagram.

[0095] The sending direction of the first communication signal can be determined by the change direction of the peak interval of the transition communication signal, and a general direction can be obtained. In step S205, the directional transition antenna is reselected multiple times to obtain multiple sending directions of the first communication signal.

[0096] Each sending direction of the first communication signal is a division of the space. As the number of divisions increases, the volume of the space will become smaller and smaller, which means that the rough sending position of the first communication signal becomes more accurate. This part of the content is the content in step S206.

[0097] Finally, in step S207, multiple antennas are selected in the antenna matrix according to the rough transmission position, and then the transmission position of the first communication signal is further clarified using the antennas selected at this time.

[0098] In some possible implementations, the distance between adjacent antennas tends to increase in a direction away from the rough transmission position, with the purpose of increasing the distinction of the first communication signal received by adjacent antennas by increasing the time interval between arrival of the first communication signal.

[0099] In some examples, when the received signals are superimposed and filtered, the following processing is used:

[0100] S301, selecting a plurality of peak points on a received signal, wherein positions of corresponding peak points on each received signal are the same;

[0101] S302, superimposing the received signals;

[0102] S303, moving the received signal on the timeline according to the corresponding peak point so that the height of the corresponding peak point is maximized.

[0103] The contents in step S301 to step S303 can effectively improve the recognition of the peak point. At the same time, through the combination of the superposition processing method and the movement method on the time line, the time difference between the received signals of different antennas can be clearly identified.

[0104] In some examples, when calculating the peak interval change direction of the transient communication signal, the following steps are also included:

[0105] S401, constructing a wavelet and using the wavelet to filter the received signal to obtain a separated waveform;

[0106] S402, grouping the obtained separated waveforms to obtain a plurality of separated waveform groups, wherein the time intervals between any two adjacent separated waveforms in each separated waveform group are equal;

[0107] S403, determining the starting time point in the separated waveform group and calculating the change direction of the peak interval of the transition communication signal according to the starting time point in the separated waveform group.

[0108] In step S401, the received signal is first screened using wavelet to obtain a separated waveform. This is because wavelet has both time domain characteristics and frequency domain characteristics, and the start time of the received signal can be obtained. Then in step S402, the obtained separated waveforms are grouped to obtain multiple separated waveform groups. Finally, in step S403, the starting time point in the separated waveform group is determined and the peak interval change direction of the transition communication signal is calculated according to the starting time point in the separated waveform group.

[0109] One received signal corresponds to one separated waveform group, and each separated waveform in these separated waveform groups should have one separated waveform in other separated waveform groups, because these separated waveforms are generated at the same time point.

[0110] In this way, the starting time point in each separated waveform group can be determined. Even if it is not the correct starting time point, the peak interval change direction of the transition communication signal can still be obtained because the separated waveforms have a corresponding relationship.

[0111] For some possible implementations, see Figure 7 The received signal is mixed with an identification time mark, and the role of the identification time mark is to lengthen or shorten the time interval between two adjacent separated waveforms. At this time, in step S402, the separated waveforms in the separated waveform group are segmented, and the time interval between any two adjacent separated waveforms in each segment is equal.

[0112] In some examples, multiple antennas are selected in an antenna matrix according to a rough transmit position by:

[0113] Establishing a selection direction on the antenna matrix based on the rough transmission position;

[0114] In the selection direction, a directional antenna is selected according to the signal strength difference and signal frequency difference between the second communication signal and the transmission signal, and the specific method is as follows:

[0115] Calculate the new frequency that may be generated by the strength of the second communication signal and the strength of the transmission signal of the directional antenna;

[0116] Check whether the new frequency falls within the operating frequency range of the sending location;

[0117] Select a directional antenna based on the verification result so that the generated new frequency does not fall into the working frequency range of the sending position or falls into the working frequency range of the sending position in small amounts;

[0118] The obtained directional antennas are located on a plurality of straight lines, and the directional antennas belonging to the same straight line use a directional signal transmission method to send a second communication signal to a terminal located at a transmission position.

[0119] The above method can avoid or minimize the generation of interference signals. The obtained directional antennas also need to comply with the following rules. The obtained directional antennas are divided into multiple groups, and the directional antennas in each group are located on the same straight line, such as Figure 8 As shown, the dashed cross represents the selected antenna.

[0120] Because the second communication signal needs to be sent to the terminal located at the sending position at this time, multiple directional antennas belonging to the same straight line can use modulation method to realize directional signal transmission, and grouping method can realize the generation of multiple directional signals.

[0121] In some possible implementations, the multiple straight lines where the directional antennas are located are not parallel to each other, so that the emitted directional transmission signals tend to surround the terminal located at the transmission position.

[0122] The present application also provides an antenna switching device, comprising:

[0123] A first selection unit, configured to select a plurality of antennas in the antenna matrix in response to a received first communication signal, wherein the selected plurality of antennas are recorded as directional antennas;

[0124] A processing unit, configured to construct a receiving antenna matrix using a directional antenna and determine a sending position of the first communication signal;

[0125] A communication unit, used to send a second communication signal to a terminal located at a sending position and establish a communication relationship;

[0126] A data acquisition unit, used to acquire the transmission signal frequency and transmission signal strength of all antennas in the antenna matrix;

[0127] The second selection unit is used to select a directional antenna according to a signal strength difference and a signal frequency difference between the second communication signal and the transmission signal.

[0128] Furthermore, it also includes:

[0129] A third selection unit is used to select directional transition antennas in the antenna matrix, where the directional transition antennas are located on the same straight line;

[0130] A receiving signal acquisition unit, used to acquire a receiving signal of each directional transition antenna over a time length;

[0131] A first signal processing unit, used for superimposing and screening the received reception signals to obtain a transition communication signal of each directional transition antenna;

[0132] A second signal processing unit, used for calculating a change direction of a peak interval of a transient communication signal and determining a sending direction of the first communication signal according to the change direction of the peak interval of the transient communication signal;

[0133] A repeat processing unit, used for reselecting the directional transition antenna multiple times and obtaining the sending directions of multiple first communication signals;

[0134] a position determination unit, configured to determine a rough sending position of the first communication signal using the obtained sending directions of the plurality of first communication signals;

[0135] The fourth selection unit is used to select multiple antennas in the antenna matrix according to the rough transmission position.

[0136] Furthermore, in a direction away from the rough transmission position, the distance between adjacent antennas tends to increase.

[0137] Furthermore, it also includes:

[0138] A peak point selection unit, used to select a plurality of peak points on the received reception signal, wherein the positions of the corresponding peak points on each received reception signal are the same;

[0139] A superposition processing unit, used for superimposing the received reception signals;

[0140] The signal moving unit is used to move the received signal on the time line according to the corresponding peak point so that the height of the corresponding peak point is maximized.

[0141] Furthermore, it also includes:

[0142] A signal separation and screening unit, used for constructing a wavelet and using the wavelet to screen the received signal to obtain a separated waveform;

[0143] A signal grouping unit, used for grouping the obtained separated waveforms to obtain a plurality of separated waveform groups, wherein the time intervals between any two adjacent separated waveforms in each separated waveform group are equal;

[0144] The third signal processing unit is used to determine the starting time point in the separated waveform group and calculate the peak interval change direction of the transition communication signal according to the starting time point in the separated waveform group.

[0145] Furthermore, it also includes:

[0146] A selection direction establishing unit, used to establish a selection direction on the antenna matrix according to a rough transmission position;

[0147] The fifth selection unit is used to select a directional antenna in a selected direction according to a signal strength difference and a signal frequency difference between the second communication signal and the transmitted signal.

[0148] Furthermore, it also includes:

[0149] A frequency calculation unit, used to calculate a new frequency that may be generated by the strength of the second communication signal and the strength of the transmission signal of the directional antenna;

[0150] A frequency checking unit, used to check whether the new frequency falls within the working frequency range of the sending location;

[0151] A sixth selection unit, used for selecting a directional antenna according to the verification result, so that the generated new frequency does not fall into the working frequency range of the sending position or falls into the working frequency range of the sending position in a small amount;

[0152] The obtained directional antennas are located on a plurality of straight lines, and the directional antennas belonging to the same straight line use a directional signal transmission method to send a second communication signal to a terminal located at a transmission position.

[0153] In one example, the unit in any of the above devices can be one or more integrated circuits configured to implement the above methods, such as: one or more application specific integrated circuits (ASICs), or, one or more digital signal processors (DSPs), or, one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

[0154] For another example, when the units in the device can be implemented in the form of a processing element scheduling program, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call a program. For another example, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0155] Various objects such as various messages / information / equipment / network elements / systems / devices / actions / operations / processes / concepts that may appear in this application are named. It can be understood that these specific names do not constitute a limitation on the relevant objects. The names assigned may change with factors such as scenarios, contexts or usage habits. The understanding of the technical meaning of the technical terms in this application should be mainly determined from the functions and technical effects embodied / executed in the technical scheme.

[0156] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0157] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0158] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0159] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0160] It should also be understood that in various embodiments of the present application, the first, second, etc. are only used to indicate that multiple objects are different. For example, the first time window and the second time window are only used to indicate different time windows. They should not have any impact on the time window itself, and the first, second, etc. mentioned above should not impose any limitations on the embodiments of the present application.

[0161] It should also be understood that in the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0162] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a computer-readable storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned computer-readable storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0163] The present application also provides a Beidou antenna, the system comprising:

[0164] Multiple antenna units for sending and receiving signals;

[0165] one or more memories for storing instructions; and

[0166] One or more processors are used to call and execute the instructions from the memory to drive multiple antenna units to execute the method described in the above content.

[0167] The present application also provides a computer program product, which includes instructions. When the instructions are executed, the terminal device and the network device perform operations of the terminal device and the network device corresponding to the above method.

[0168] The present application also provides a chip system, which includes a processor for implementing the functions involved in the above content, such as generating, receiving, sending, or processing the data and / or information involved in the above method.

[0169] The chip system may be composed of chips, or may include chips and other discrete devices.

[0170] The processor mentioned in any of the above places can be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for executing programs for controlling the above-mentioned feedback information transmission method.

[0171] In a possible design, the chip system also includes a memory, which is used to store necessary program instructions and data. The processor and the memory can be decoupled and respectively set on different devices, connected by wire or wireless means to support the chip system to implement various functions in the above embodiments. Alternatively, the processor and the memory can also be coupled on the same device.

[0172] Optionally, the computer instructions are stored in a memory.

[0173] Optionally, the memory is a storage unit within the chip, such as a register, a cache, etc. The memory can also be a storage unit within the terminal located outside the chip, such as a ROM or other types of static storage devices that can store static information and instructions, RAM, etc.

[0174] It can be understood that the memory in the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories.

[0175] The non-volatile memory may be a ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), or a flash memory.

[0176] The volatile memory may be a RAM, which is used as an external cache. There are many different types of RAM, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct memory bus RAM.

[0177] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for switching an antenna, characterized in that: include: In response to the received first communication signal, selecting a plurality of antennas in the antenna matrix, the selected plurality of antennas being recorded as directional antennas; Using directional antennas to construct a receiving antenna matrix and determine a sending location of the first communication signal; Sending a second communication signal to a terminal located at the sending position and establishing a communication relationship; Selecting multiple antennas in an antenna matrix involves: Select directional transition antennas in the antenna matrix, and the directional transition antennas are located on the same straight line; Obtaining a receiving signal of each directional transition antenna over a time length; The received signals are superimposed and screened to obtain the transition communication signal of each directional transition antenna; Calculating a change direction of a peak interval of a transient communication signal and determining a sending direction of the first communication signal according to the change direction of the peak interval of the transient communication signal; reselecting the directional transition antenna multiple times and obtaining the sending directions of multiple first communication signals; Determine a rough sending position of the first communication signal using the obtained sending directions of the plurality of first communication signals; selecting a plurality of antennas in an antenna matrix according to a rough transmission position; Selecting multiple antennas in an antenna matrix based on a rough transmit position includes: Establishing a selection direction on the antenna matrix based on the rough transmission position; Selecting a directional antenna in the selected direction according to the signal strength difference and signal frequency difference between the second communication signal and the transmitted signal to reduce mutual interference between the signals; Selecting the directional antenna in the selected direction according to the signal strength difference and the signal frequency difference between the second communication signal and the transmitted signal includes: Calculate the new frequency that may be generated by the strength of the second communication signal and the strength of the transmission signal of the directional antenna; Check whether the new frequency falls within the operating frequency range of the sending location; Select a directional antenna based on the verification result so that the generated new frequency does not fall into the working frequency range of the sending position or falls into the working frequency range of the sending position in small amounts; The obtained directional antennas are located on a plurality of straight lines, and the directional antennas belonging to the same straight line use a directional signal transmission method to send a second communication signal to a terminal located at a transmission position; The received signals are superimposed and filtered including: Selecting a plurality of peak points on the received reception signal, the positions of the corresponding peak points on each of the received reception signals being the same; Superimposing the received signals; The received signal is moved on the timeline according to the corresponding peak point so that the height of the corresponding peak point is maximized.

2. The antenna switching method according to claim 1, characterized in that: In a direction away from the rough transmission position, the distance between adjacent antennas tends to increase.

3. The antenna switching method according to claim 1, characterized in that: When calculating the change direction of the peak interval of the transient communication signal, it also includes: Construct a wavelet and use the wavelet to filter the received signal to obtain a separated waveform; The obtained separated waveforms are grouped to obtain a plurality of separated waveform groups, wherein the time intervals between any two adjacent separated waveforms in each separated waveform group are equal; The starting time point in the separated waveform group is determined and the peak interval change direction of the transition communication signal is calculated according to the starting time point in the separated waveform group.

4. An antenna switching device, characterized in that: include: A first selection unit, configured to select a plurality of antennas in the antenna matrix in response to a received first communication signal, wherein the selected plurality of antennas are recorded as directional antennas; A processing unit, configured to construct a receiving antenna matrix using a directional antenna and determine a sending position of the first communication signal; A communication unit, used to send a second communication signal to a terminal located at a sending position and establish a communication relationship; Selecting multiple antennas in an antenna matrix involves: Select directional transition antennas in the antenna matrix, and the directional transition antennas are located on the same straight line; Obtaining a receiving signal of each directional transition antenna over a time length; The received signals are superimposed and screened to obtain the transition communication signal of each directional transition antenna; Calculating a change direction of a peak interval of a transient communication signal and determining a sending direction of the first communication signal according to the change direction of the peak interval of the transient communication signal; reselecting the directional transition antenna multiple times and obtaining the sending directions of multiple first communication signals; Determine a rough sending position of the first communication signal using the obtained sending directions of the plurality of first communication signals; selecting a plurality of antennas in an antenna matrix according to a rough transmission position; Selecting multiple antennas in an antenna matrix based on a rough transmit position includes: Establishing a selection direction on the antenna matrix based on the rough transmission position; Selecting a directional antenna in the selected direction according to the signal strength difference and signal frequency difference between the second communication signal and the transmitted signal to reduce mutual interference between the signals; The method further comprises: selecting a directional antenna in a selected direction according to a signal strength difference and a signal frequency difference between the second communication signal and the transmitted signal; Calculate the new frequency that may be generated by the strength of the second communication signal and the strength of the transmission signal of the directional antenna; Check whether the new frequency falls within the operating frequency range of the sending location; Select a directional antenna based on the verification result so that the generated new frequency does not fall into the working frequency range of the sending position or falls into the working frequency range of the sending position in small amounts; The obtained directional antennas are located on a plurality of straight lines, and the directional antennas belonging to the same straight line use a directional signal transmission method to send a second communication signal to a terminal located at a transmission position; The received signals are superimposed and filtered including: Selecting a plurality of peak points on the received reception signal, the positions of the corresponding peak points on each of the received reception signals being the same; Superimposing the received signals; The received signal is moved on the timeline according to the corresponding peak point so that the height of the corresponding peak point is maximized.

5. A Beidou antenna, characterized in that: The Beidou antenna comprises: Multiple antenna units for sending and receiving signals; one or more memories for storing instructions; and One or more processors, configured to call and execute the instructions from the memory, and drive multiple antenna units to execute the method according to any one of claims 1 to 3.

6. A computer-readable storage medium, characterized in that: The computer readable storage medium comprises: The program, when the program is executed by a processor, the method according to any one of claims 1 to 3 is executed.

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