WO2022267232A1

WO2022267232A1 - Information source orientation method, system, apparatus and terminal device, and readable storage medium

Info

Publication number: WO2022267232A1
Application number: PCT/CN2021/117561
Authority: WO
Inventors: 赵瑞祥; 尹作彪; 张西洋
Original assignee: 蓝色创源(北京)科技有限公司
Priority date: 2021-06-23
Filing date: 2021-09-10
Publication date: 2022-12-29
Also published as: CN113824514A; CN113824514B

Abstract

An information source orientation method, system, apparatus and terminal device, and a readable storage medium. The information source orientation method comprises: acquiring a first signal (S100), wherein the first signal comprises an information source signal that is received by a first array element and sent by an information source; acquiring a second signal (S200), wherein the second signal comprises an information source signal that is received by a second array element; and obtaining a first decision value of the information source signal according to the first signal and the second signal, and obtaining a first direction of an information source according to the first decision value (S300). In the method, by means of switching an antenna array element, which receives an information source signal, in an antenna array, the switching of the antenna array element is linked with a decision result, such that the direction of incoming waves is determined by using the decision result. Therefore, positioning is performed without the need to combine multi-path IQ acquisition, and a chip for IQ acquisition is also not needed, and the work can be carried out by using an ordinary Bluetooth chip, such that the costs and failure rate of an orientation device can be effectively reduced, and the orientation efficiency can be improved.

Description

Source oriented method, system, device, terminal equipment and readable storage medium

technical field

The present application relates to the technical field of orientation, and in particular, relates to a source orientation method, system, device, terminal equipment, and readable storage medium.

Background technique

Existing radio frequency directional equipment generally requires multi-antenna joint multi-channel IQ acquisition for positioning, and uses special equipment and frequency bands. Therefore, the cost and failure rate are high, and the orientation efficiency is low.

Contents of the invention

According to various embodiments of the present application, the following technical solutions are provided:

In the first aspect, the embodiment of the present application provides a source-orientation method, the method comprising:

Acquiring a first signal, where the first signal includes a source signal received by the first array element and sent by the source;

acquiring a second signal, where the second signal includes the source signal received by the second array element;

A first judgment value of the information source signal is obtained according to the first signal and the second signal, and a first direction of the information source is obtained according to the first judgment value.

Optionally, the method also includes:

acquiring a third signal, where the third signal includes the source signal received by the first array element;

acquiring a fourth signal, where the fourth signal includes the source signal received by another second array element;

Obtaining a second decision value of the source signal according to the third signal and the fourth signal, and obtaining a second direction of the source signal according to the second decision value;

A third direction of the information source is obtained according to the first direction and the second direction.

Optionally, the method also includes:

acquiring a fifth signal, where the fifth signal includes the source signal received by the third array element;

Obtaining a third decision value of the source signal according to the second signal and the fifth signal, and obtaining a fourth direction of the source signal according to the third decision value;

A fifth direction of the information source is obtained according to the first direction and the fourth direction.

Optionally, before acquiring the second signal, it also includes:

After receiving the first time length of the flag bit of the first signal, the array element receiving the source signal is switched from the first array element to the second array element; the first time length It is equal to the sum of the time from the flag bit to the start position of the directional bit stream and the duration of one symbol.

Optionally, the source signal includes a data bit stream of all 0s or a data bit stream of all 1s.

In a second aspect, an embodiment of the present application provides a system for source orientation, and the system includes a first acquisition module, a second acquisition module, and a first calculation module.

The first acquisition module is configured to acquire a first signal, where the first signal includes the source signal received by the first array element and sent by the source;

A second acquisition module, configured to acquire a second signal, where the second signal includes the source signal received by the second array element;

A first calculating module, configured to obtain a first judgment value of the information source signal according to the first signal and the second signal, and determine a first direction of the information source according to the first judgment value.

Optionally, the system further includes a third acquisition module, a fourth acquisition module, a second calculation module and a third calculation module.

A third acquisition module, configured to acquire a third signal, where the third signal includes the source signal received by the first array element;

A fourth acquisition module, configured to acquire a fourth signal, where the fourth signal includes the source signal received by another second array element;

A second calculation module, configured to obtain a second decision value of the source signal according to the third signal and the fourth signal, and determine a second direction of the source signal according to the second decision value;

A third calculating module, configured to determine a third direction of the information source according to the first direction and the second direction.

Optionally, the system further includes a fifth acquisition module, a fourth calculation module and a fifth calculation module.

A fifth acquisition module, configured to acquire a fifth signal, where the fifth signal includes the source signal received by the third array element;

A fourth calculation module, configured to obtain a third decision value of the source signal according to the second signal and the fifth signal, and obtain a fourth direction of the source signal according to the third decision value;

A fifth calculation module, configured to obtain a fifth direction of the information source according to the first direction and the fourth direction.

Optionally, the system further includes a switching module.

A switching module, configured to switch the array element receiving the source signal from the first array element to the second array element after receiving the first time length of the flag bit of the first signal; The first time length is equal to the sum of the time from the flag bit to the start position of the directional bit stream and the duration of one symbol.

In a third aspect, an embodiment of the present application provides a source directional device, where the source directional device includes an antenna array and a programmable logic device. The antenna array includes a first array element and a second array element; the programmable logic device is used to execute the steps of the above-mentioned source orientation method.

Optionally, the second array element includes at least two array elements, and the distance between the first array element and each of the second array elements is equal.

Optionally, the source directional device further includes an antenna switching module, the antenna switching module switches the antenna element receiving the source signal sent by the source according to the control signal sent by the programmable logic device.

Optionally, the first array element is electrically connected to the receiving chip through the first microstrip line, the second array element is electrically connected to the receiving chip through the second microstrip line, and the first microstrip line is connected to the receiving chip. The length difference of the second microstrip line satisfies the following formula:

In formula (1), Δw is the length difference between the first microstrip line and the second microstrip line, n is an integer,

is the wavelength of the cell signal sent by the signal source received by the antenna array in the first microstrip line and in the second microstrip line.

Optionally, the distance between the first array element and the second array element satisfies the following formula:

In formula (2), d is the distance between the first array element and the second array element, and λ is the wavelength in air of the cell signal sent by the signal source.

In a fourth aspect, an embodiment of the present application provides a source-oriented terminal device, including a first memory, a first processor, and a computer program stored in the first memory and operable on the first processor When the first processor executes the computer program, the steps of the above-mentioned source-orientation method are implemented.

In a fifth aspect, the embodiment of the present application provides a readable storage medium, where a computer program is stored on the readable storage medium, and when the computer program is executed by a processor, the steps of the above information source directional method are implemented.

In a sixth aspect, the embodiment of the present application provides a method for sending a source signal, including:

Generate a source signal;

sending the source signal, the source signal is used to be received by the first array element and the second array element in turn, and the source signal received by the first array element is used to communicate with the second array element Combine the received source signals to obtain a first judgment value of the source signal, and the first judgment value is used to judge a first sending direction of the source signal.

Optionally, after the second array element receives the source signal, it further includes:

The source signal is sequentially received by the first array element and another second array element, and the source signal received by the first array element is used for all signals received by the other second array element. The source signal is combined to obtain a second judgment value of the source signal, the second judgment value is used to judge the second sending direction of the source signal, and the second sending direction is used to communicate with the first A sending direction is combined to obtain a third sending direction of the source signal.

The source signal is received by a third array element, and the source signal received by the third array element is used to combine with the source signal received by the second array element to obtain the source signal The third judgment value, the third judgment value is used to judge the fourth transmission direction of the source signal, and the fourth transmission direction is used to combine with the first transmission direction to obtain the source signal Fifth sending direction.

Optionally, the source signal includes a flag bit for triggering array element switching, and the array element switching includes:

After receiving the first time length of the flag bit, the array element receiving the source signal is switched from the current array element to another array element, and the first time length is equal to the flag bit to the directional bit stream The sum of the time at the start position and the duration of one symbol.

In a seventh aspect, the embodiment of the present application provides a source signal sending device, including a source signal generating module and a source signal sending module.

A source signal generating module, configured to generate a source signal;

A source signal sending module, configured to send the source signal, the source signal is used to be sequentially received by the first array element and the second array element, and the source signal received by the first array element, It is used to combine with the source signal received by the second array element to obtain a first judgment value of the source signal, and the first judgment value is used to judge a first sending direction of the source signal.

In an eighth aspect, the embodiment of the present application provides a source signal transmission terminal device, including a second memory, a second processor, and a computer stored in the second memory and operable on the second processor program, when the second processor executes the computer program, it implements the steps of the above method for sending a signal source signal.

In a ninth aspect, the embodiment of the present application provides a readable storage medium, where a computer program is stored on the readable storage medium, and when the computer program is executed by a processor, the steps of the above method for sending a signal source are implemented.

The beneficial effect of this application is:

The present application links the switching of the antenna elements with the decision result by switching the antenna element receiving the source signal in the antenna array, and uses the decision result to judge the incoming wave direction. Therefore, there is no need to combine multiple IQ acquisitions for positioning, and there is no need to collect IQ chips, and ordinary Bluetooth chips can be used to work, which can effectively reduce the cost and failure rate of orientation equipment, and can improve the efficiency of orientation.

Other features and advantages of the present application will be set forth in the ensuing description and, in part, will be apparent from the description, or can be learned by practicing the embodiments of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, so It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of a source directional device provided in an embodiment of the present application;

Fig. 2 is the waveform diagram of the signal after GFSK modulation described in the embodiment of the present application;

Fig. 3 is a schematic diagram of the processing flow of data sending and receiving described in the embodiment of the present application;

Fig. 4 is a schematic diagram of the relationship between the bit source and the sampling phase described in the embodiment of the present application;

Fig. 5 is a schematic diagram of the relationship between antenna element switching and phase described in the embodiment of the present application;

6 is a schematic diagram of the relationship between the antenna element spacing and the length of the microstrip line described in the embodiment of the present application;

Fig. 7 is on the unit circle described in the embodiment of the present application

Schematic diagram of the scope of judgment;

Fig. 8 is the Δp described in the embodiment of the application and

The schematic diagram of the relationship;

FIG. 9 is a method flowchart of a cell orientation method provided by an embodiment of the present application;

FIG. 10 is a method flowchart of a cell orientation method provided in another embodiment of the present application;

FIG. 11 is a schematic layout diagram of the antenna array described in the embodiment of the present application;

FIG. 12 is a method flowchart of a cell orientation method provided in another embodiment of the present application;

FIG. 13 is a structural block diagram of a source-oriented system provided by an embodiment of the present application;

Fig. 14 is a structural block diagram of a source-oriented system provided by another embodiment of the present application;

Fig. 15 is a structural block diagram of a source-orientation system provided by another embodiment of the present application;

Fig. 16 is a structural block diagram of a source-directed terminal device provided by one embodiment of the present application and a structural block diagram of a source signal sending terminal device provided by another embodiment of the present application;

FIG. 17 is a flow chart of a source signal sending method provided by an embodiment of the present application;

Fig. 18 is a structural block diagram of a source signal sending device provided by an embodiment of the present application.

Marks in the figure: 110, signal sending device; 120, signal receiving device; 121, programmable logic device; 122, switch control line; 123, antenna array; 124, signal receiving chip; 125, radio frequency switch array.

detailed description

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

It should be noted that similar reference numerals or letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

Example

Existing radio frequency directional equipment generally requires multi-antenna joint multi-channel IQ acquisition for positioning, and uses special equipment and frequency bands. The technical solutions provided in the embodiments of the present application can effectively solve this problem.

Please refer to FIG. 1 , which shows a schematic structural diagram of an implementation environment involved in various embodiments of the present application. The implementation environment includes: a signal sending device 110 and a signal receiving device 120 .

The signal sending device 110 may be an electronic device with a common bluetooth sending function, and it only needs to support bluetooth BLE4.2 and above protocols. The signal sending device 110 may be a customized label, or a device such as a smart phone with a Bluetooth function.

The signal receiving device 120 may include a programmable logic device 121 , a switch control line 122 , an antenna array 123 , a signal receiving chip 124 , and a radio frequency switch array 125 .

The input end of the programmable logic device 121 is electrically connected with the signal receiving chip 124, and the output end of the programmable logic device 121 is electrically connected with the radio frequency switch array 125 through the switch control line 122, and the programmable logic device 121 can be CPLD (Complex Programming logic device ), CPLD is a programmable logic device with high density, high speed and low power consumption.

The input end of the signal receiving chip 124 is electrically connected to the radio frequency switch array 125, and the output end is electrically connected to the programmable logic device 121. The signal receiving chip 124 may be a Bluetooth receiving chip.

The antenna array 123 includes at least two antenna elements, and each antenna element is electrically connected to the radio frequency switch array 125 through an independent microstrip line.

The output end of the radio frequency switch array 125 is electrically connected to the signal receiving chip 124 , and the input end of the radio frequency switch array 125 is electrically connected to the antenna array 123 . After receiving the control command of the programmable logic device 121, the radio frequency switch array 125 turns on or off the input microstrip line of one of the antenna elements in the antenna array 123 according to the control command, when the radio frequency switch array 125 turns on the input The antenna element of the microstrip line can transmit the source signal it receives to the programmable logic device 121 .

The signal sending device 110 and the signal receiving device 120 can work in the Bluetooth broadcast frequency band. The Bluetooth broadcast frequency band includes three channels, namely 37, 38, and 39 channels, and their operating frequencies are: 2.402GHz, 2.426GHz, and 2.480GHz. In the broadcast channel, the Bluetooth protocol uses GFSK modulation with a modulation factor between 0.45 and 0.55.

In the modulation of the Bluetooth broadcast channel, the GFSK signal with a modulation factor of 0.5, when sending 1, the signal is the carrier frequency plus 250KHz, and when sending 0, the signal is the carrier frequency minus 250KHz. The baud rate of the Bluetooth BLE broadcast channel is 1M/s, so the duration of each cell is 1us, and its waveform is shown in Figure 2.

As shown in Figure 3, on the Bluetooth broadcast channel, there is a whitening process when data is sent, and a de-whitening process after receiving and demodulating.

The signal sending device 110 sends signals, and the signal receiving device 120 receives signals. The signal sending device 110 can make the whitened data bit stream become all 1s or all 0s by constructing a special bit stream. For the convenience of description, all 1s are used as an example here. At the same time, since the channel whitening process and de-whitening are fixed and reversible, by analyzing and processing the data bit stream received by the signal receiving device 120, the data bit stream obtained after demodulation can be deduced inversely.

After the signal receiving device 120 receives the frame header sent by the signal sending device 110, the signal receiving chip 124 immediately generates a signal pulse to the programmable logic device 121, and the programmable logic device 121 generates an antenna array element switching control signal through hardware logic to Control the switching of the radio frequency switch array to the antenna elements.

The signal is received by the antenna array 123, demodulated by the demodulator inside the programmable logic device 121, and then de-whitened, and the user of the signal receiving chip 124 can read a frame of data bit stream. Due to the switching of antenna elements, the data is generally different from the transmitted data bit stream, and the algorithm can obtain the orientation of the signal transmitting device 110 relative to the signal receiving device 120 by comparing this difference.

The principle of the algorithm to obtain the orientation of the signal sending device 110 relative to the signal receiving device 120 by comparing this difference is as follows:

For the convenience of description, it is assumed that the sent data is all 1 in the bit stream after whitening. After receiving the data, the signal receiving device 120 performs a reverse operation of de-whitening to obtain the data after demodulation and before de-whitening.

The post-demodulation judgment of the Bluetooth broadcast channel is judged by the phase difference between the beginning and the end of the bit. The complex representation of the Bluetooth broadcast signal is:

Where i is the imaginary unit, S is the complex signal,

Is the initial phase, A is the signal amplitude, and f _b is the modulation frequency. When sending 1, _f _b =250kHz, when sending 0, fb=-250kHz.

As shown in Figure 4, the programmable logic device 121 can detect whether the transmitted bit is 0 or 1 through the first sampling phase and the second sampling phase, and the relationship between the bit source and the sampling phase is shown in Figure 4 , in Figure 4, the first sampling phase is

The second sampling phase is

In this embodiment, the programmable logic device 121 can use a chip that does not have an IQ value output function, and can be implemented using a Bluetooth chip that only has a judgment value of 0 or 1.

When sending 1, the phase difference is:

For the same reason, when sending 0, the phase difference is:

That is to say, the difference in the phase difference corresponds to the difference in the bit of the cell. When the signal sending device 110 sends a cell bit stream of all 1s, the adjacent sampling phase differences should be

At this time, do the following process design, switch the antenna element in the middle of the cell, so that the two sampled signals are received by different antenna elements, and at the same time design the phase delay of the two antenna elements themselves to be different

The relationship between antenna element switching and phase is shown in Figure 5.

Assuming that the path length of the tag signal to antenna 1 is p, and the path between the tag and antenna 2 is p+Δp, the path difference Δp is related to the antenna configuration and the orientation of the tag relative to the base station. As shown in FIG. 6, Δp=d·sinβ.

In FIG. 6 , the length of the microstrip line from antenna 1 to the signal receiving chip 124 is w, and the length of the microstrip line from antenna 2 to the signal receiving chip 124 is w+Δw. This length difference can be controlled by the design of the microstrip line. Then, the signal at the terminal 110 of the signal sending device is:

The value of the sampling phase is: where λ is the wavelength of the signal in the air,

is the wavelength of the signal in the microstrip line. These two wavelengths can be calculated according to the signal frequency, air dielectric constant, microstrip line configuration, and PCB board dielectric constant:

Then, the phase difference obtained by the internal decision device of the programmable logic device is:

By designing the microstrip line, the

n is an integer:

In the same way, when sending 0, the length difference of the microstrip line

Since the phase is 2π as a period, therefore, 2π can be removed, so there are:

As can be seen from FIG. 6, the programmable logic device 121 is through

the closer

still is

To determine whether the received bit cell is 1 or 0. Thus, on the unit circle one can draw

The judgment range of , as shown in Figure 7.

Through the length of the microstrip antenna, the distance between antenna 1 and antenna 2 can be less than

Then the value range of Δp is:

Draw Δp vs.

The relationship diagram, as shown in Figure 8. From Figure 8, the content in the following table can be obtained:

Therefore, only by whether the received cell itself is 1 or 0, it can be judged whether the signal is incident from the left side or the right side of the normal line connecting two adjacent antenna elements.

As shown in FIG. 9 , it shows a flowchart of a cell orientation method provided by an embodiment of the present application, and the cell orientation method includes step S210, step S220 and step S230.

Step S210. Acquire a first signal. The first signal may be a source signal sent by a source received by the first antenna element in the antenna array 123 that is electrically connected to the radio frequency switch array 125 .

Step S220. Acquire a second signal. The second signal may be a source signal received by another antenna element electrically connected to the radio frequency switch array 125 .

Step S230. According to the first signal and the second signal, a first decision value of the source signal is obtained, and a first direction of the source signal is obtained according to the first decision value.

According to the first signal and the second signal, the programmable logic device 121 judges whether the received signal source is 0 or 1, and according to the judgment value, it can be obtained that the transmission direction of the signal source signal is located between the first array element and the second array element. Whether the line's normal is left or right.

Bluetooth 4.2 is designed to transmit data, and whitening is performed by default, so the data sent out has a changing frequency and cannot be directly used for orientation. By constructing a data bit stream of all 0s or a data bit stream of all 1s, the frequency of the signal can be kept consistent within a directional cycle. Through the judgment of 0 or 1, and the design of the microstrip line and antenna array structure, the incident direction of the source signal is reversed, so as to achieve orientation, so that electronic products using Bluetooth 4.2 can also be oriented.

Since the programmable logic device 121 in this embodiment only needs to output a judgment value of 0 or 1, the direction of the source can be judged according to the judgment value, so the programmable logic device 121 does not need to provide the first signal and the second signal. The specific phase of the signal, or the phase difference between the first signal and the second signal, therefore, the programmable logic device 121 can be implemented using a Bluetooth chip of Bluetooth 4.2 or below. The judgment of the direction of the signal source is made more concise, and the efficiency of judging the direction of the signal source is improved.

At present, the Bluetooth chip of the Bluetooth 4.2 protocol can only judge whether the phase difference is closer

still closer

To output 0/1, the specific value of phase difference cannot be clearly output. The reason is that the Bluetooth 4.2 chip is only used to transmit data, that is, to transmit 0 and 1 values, and does not provide orientation function, so it does not output specific phase or Phase difference value, and orientation usually uses phase or phase difference to solve the direction.

Chips that support Bluetooth 5.1 and above protocols can support the orientation function (that is, the orientation function is provided on top of the basic function of transmitting data), so the chip that supports Bluetooth 5.1 will clearly calculate the phase/phase difference and output.

Although the Bluetooth protocol has been updated to version 5.1, the Bluetooth chips in many electronic products (such as mobile phones) on the market are still version 4.2, and the chips of version 5.1 have not been upgraded. That is to say, mobile phones with only Bluetooth 4.2 chips cannot use Bluetooth The 5.1 protocol sends signals, so even if the 5.1 protocol chip is used in the directional base station, the old mobile phone cannot communicate and decode with the directional base station based on Bluetooth 5.1, so the base station cannot directly obtain the phase/phase difference for orientation.

Therefore, the use of Bluetooth 4.2 and below Bluetooth chips can greatly reduce the cost of equipment and increase the compatibility of devices using this method for source direction.

To sum up, the source orientation method provided by the embodiment of the present application can realize the judgment of the direction of the signal source only by switching the antenna elements receiving the source signal, and all the antenna elements of the antenna array share one receiving channel. Therefore, there is no need to combine multiple IQ acquisitions for positioning, and there is no need to collect IQ chips. Only ordinary Bluetooth chips can be used to work, which can effectively reduce the cost and failure rate of orientation equipment, and can improve the efficiency of orientation. At the same time, because this application uses the bluetooth frequency band, the license is relatively easy.

As shown in Figure 10, it shows the flowchart of the cell orientation method provided by one embodiment of the present application, the cell orientation method includes step S310, step S320, step S330, step S340, step S350, step S360 and step S370.

Step S310. Acquire a first signal. Before receiving the source signal, the radio frequency switch array 125 is electrically connected to the first array element, and the first array element starts to receive the source signal. The source signal can be a data bit stream of all 0s or a data bit stream of all 1s. Each bit cell of the source signal has a flag bit, for example, the flag bit can be the frame header of the bit cell. When the first array element recognizes the flag bit of the first signal, it starts switching preparations, and starts switching after the corresponding bit stream time. The corresponding bit stream time can be the time from the flag bit to the start position of the directional bit stream and a Sum of symbol times.

Step S320. Acquire a second signal. After recognizing the corresponding bit flow time of the flag in the first signal, the programmable logic device 121 generates a switching control command, and sends the control command to the radio frequency switch array 125, and the radio frequency switch array 125 receives the control command , disconnect the first array element, electrically connect the second array element, and transmit the signal source signal received in the second array element to the programmable logic device 121 .

Step S330. According to the first signal and the second signal, a first decision value of the source signal is obtained, and a first direction of the source is obtained according to the first decision value. The programmable logic device determines and obtains the first direction of the source signal according to the first signal and the second signal.

Step S340. Obtain a third signal, the third signal includes the source signal received by the first array element; after identifying the corresponding bit stream time of the flag in the second signal, the programmable logic device 121 generates a switching control command , and send the control command to the RF switch array 125. After receiving the control command, the RF switch array 125 disconnects the second array element, electrically connects the first array element, and connects the signal source received in the first array element The signal is transmitted to the programmable logic device 121 . The third signal is obtained by switching the antenna element receiving the source signal from the second element to the first element, and continuing to receive the source signal by the first element.

Step S350. Obtain a fourth signal, the fourth signal includes another source signal received by the second array element; after identifying the corresponding bit stream time of the flag in the third signal, the programmable logic device 121 generates a switch control command, and send the control command to the radio frequency switch array 125. After the radio frequency switch array 125 receives the control command, it disconnects the first array element, electrically connects another second array element, and connects the second array element The signal source signal received in is transmitted to the programmable logic device 121 . The fourth signal is obtained by switching the antenna element for receiving the source signal from the first element to another second element, and the other second element receives the source signal.

Step S360. According to the third signal and the fourth signal, the second decision value of the source signal is obtained, and the second direction of the source is obtained according to the second decision value; thus, the first direction and the second direction are obtained. direction.

Step S370. According to the first direction and the second direction, the third direction of the information source is obtained. According to the first direction and the second direction, a more accurate sending direction of the source signal can be obtained.

Bluetooth 4.2 is designed to transmit data, and whitening is performed by default, so the data sent out has a changing frequency and cannot be directly used for orientation. In this embodiment, by constructing a special bit stream (that is, a data bit stream of all 0s or a data bit stream of all 1s), the frequency of the signal can be kept consistent within a directional period. Through the judgment of 0 or 1, and the design of the microstrip line and antenna array structure, the incident direction of the source signal is reversed, so as to achieve orientation, so that electronic products using Bluetooth 4.2 can also be oriented.

still closer

To sum up, the source orientation method provided by the embodiment of the present application can realize the judgment of the direction of the source only by switching the antenna element receiving the source signal, so that it does not need to combine multiple IQ acquisitions for positioning. There is no need to collect IQ chips, and only ordinary Bluetooth chips can be used to work, which can effectively reduce the cost and failure rate of directional equipment, and can improve the efficiency of directional.

In this embodiment, there is one first array element and at least two second array elements in the antenna array 122 , and the distance between each second array element and the first array element is equal. As shown in FIG. 11, there is one first array element in the antenna array 122, that is, antenna No. 0 in FIG. 11, and eight second array elements, and the eight second array elements are antenna No. 1 and antenna No. 2 respectively. , antenna No. 3, antenna No. 4, antenna No. 5, antenna No. 6, antenna No. 7 and antenna No. 8, eight second array elements are arranged around the first array element, and two adjacent second array elements The spacing between them is equal.

When receiving the source signal, the source signal can be received by the No. 0 antenna first, which is recorded as the first signal, and then the source signal is received by the No. 1 antenna, which is recorded as the second signal. From the first signal and the second signal, the first signal can be obtained one direction;

The source signal is received by antenna No. 0 in turn, which is recorded as the third signal, and the source signal is received by antenna No. 2, which is recorded as the fourth signal. According to the third signal and the fourth signal, the second direction is obtained;

At this time, the third direction can be obtained according to the first direction and the second direction, and the third direction is more accurate than the first direction and the second direction.

At the same time, it is also possible to continue to cycle the above steps to obtain multiple directions, and then make a comprehensive judgment on the multiple directions. The more antennas in the second array element, the more accurate the finally recognized direction.

Optionally, in this embodiment, the first array element is electrically connected to the receiving chip 121 through the first microstrip line, the second array element is electrically connected to the receiving chip 121 through the second microstrip line, and the first microstrip line is electrically connected to the receiving chip 121. The length difference of the second microstrip line satisfies the following formula:

The optimal choice of Δw is

However, in the process of practical application, an error of 25% can be allowed. When the source signal is a data bit stream of all 0s,

When the source signal is a data bit stream of all 1,

The distance between the first array element and the second array element satisfies the following formula:

In formula (2), d is the distance between the first array element and the second array element, and λ is the wavelength of the cell signal sent by the source in the air. preferably

The actual product allows a certain error, usually in

This range is feasible, of course, the closer to half the wavelength, the better.

As shown in Figure 11, the direction of the arrow is the incident direction of the source signal, and it can be obtained:

Antenna 0 and antenna 1 form a team: the source signal can be incident from side 1;

Antenna 0 and antenna 2 form a team: the source signal can be incident from 2 sides;

Antenna 0 and antenna 3 form a team: the source signal can be incident from 3 sides;

Antenna 0 and antenna 4 form a team: the source signal can be incident from 4 sides;

Antenna 0 and antenna 5 form a team: the source signal can be incident from side 0;

Antenna 0 and antenna 6 form a team: the source signal can be incident from side 0;

Antenna 0 and antenna 7 form a team: the source signal can be incident from side 0;

Antenna 0 and antenna 8 form a team: the source signal can be incident from side 0;

Conversely, by judging from which side each antenna is incident, it can be determined that the incident direction of the signal is between the No. 2 antenna and the No. 3 antenna.

In this embodiment, by sending a source signal with a special bit stream (that is, a data bit stream of all 0s or a data bit stream of all 1s) at the transmitting end of the source signal, the receiving end of the source signal constructs a special The hardware structure (that is, the length difference between the first microstrip line and the second microstrip line and the distance between the first array element and the second array element) makes the signals coming from different directions, and the judgment results of the receiving end are different, according to The judgment result judges the direction from which the signal came.

As shown in FIG. 12 , it shows a flow chart of a cell orientation method provided by an embodiment of the present application. The cell orientation method includes step S410, step S420, step S430, step S440, step S450 and step S460.

Step S410. Acquire a first signal. Before receiving the source signal, the radio frequency switch array 125 is electrically connected to the first array element, and the first array element starts to receive the source signal. The source signal can be a data bit stream of all 0s or a data bit stream of all 1s. Each bit cell of the source signal has a flag bit, for example, the flag bit can be the frame header of the bit cell. When the first array element recognizes the flag bit of the first signal, it starts switching preparations, and starts switching after the corresponding bit stream time. The corresponding bit stream time can be the time from the flag bit to the start position of the directional bit stream and a Sum of symbol times.

Step S420. Acquire a second signal. After recognizing the corresponding bit flow time of the flag in the first signal, the programmable logic device 121 generates a switching control command, and sends the control command to the radio frequency switch array 125, and the radio frequency switch array 125 receives the control command , disconnect the first array element, electrically connect the second array element, and transmit the signal source signal received in the second array element to the programmable logic device 121 .

Step S430. Obtain a first decision value of the source signal according to the first signal and the second signal, and obtain a first direction of the source signal according to the first decision value. The programmable logic device determines and obtains the first direction of the source signal according to the first signal and the second signal.

Step S440. Obtain the fifth signal, the fifth signal includes the source signal received by the third array element; after identifying the corresponding bit stream time of the flag in the second signal, the programmable logic device 121 generates a switching control command , and send the control command to the radio frequency switch array 125. After receiving the control command, the radio frequency switch array 125 disconnects the second array element, electrically connects the third array element, and connects the signal source received in the third array element The signal is transmitted to the programmable logic device 121 .

Step S450. According to the second signal and the fifth signal, the third judgment value of the source signal is obtained, and the fourth direction of the information source is obtained according to the third judgment value; the programmable logic device judges and obtains according to the second signal and the fifth signal The fourth direction of the source signal.

Step S460. Obtain a fifth direction of the information source according to the first direction and the fourth direction. According to the first direction and the fourth direction, a more accurate sending direction of the source signal, ie, the fifth direction, can be obtained.

In this embodiment, the antenna array 123 includes at least three antenna elements, and the distance between every two adjacent antenna elements is equal.

Optionally, in this embodiment, the first array element is electrically connected to the receiving chip 121 through the first microstrip line, the second array element is electrically connected to the receiving chip 121 through the second microstrip line, and the third array element is electrically connected to the receiving chip 121 through the second microstrip line. The three microstrip lines are electrically connected to the receiving chip 121, the length difference between the first microstrip line and the second microstrip line, and the length difference between the second microstrip line and the third microstrip line all satisfy the following formula:

In formula (1), Δw is the length difference between the first microstrip line and the second microstrip line, and the length difference between the second microstrip line and the third microstrip line, n is an integer,

Wavelengths in the first microstrip line, in the second microstrip line and in the third microstrip line of the cell signal sent by the signal source received by the antenna array.

The optimal choice of Δw is

When the source signal is a data bit stream of all 1,

The distance between the first array element and the second array element, and the distance between the second array element and the third array element all satisfy the following formula:

In the formula (2), d is the distance between the first array element and the second array element, and the distance between the second array element and the third array element, λ is the cell signal sent by the source in the air wavelength. preferably

The actual product allows a certain error, usually in

In this embodiment, only the first array element, the second array element, and the third antenna array element are shown in the antenna array 123. Under this principle, the antenna array 123 may not only be limited to three or For less than 3 antenna elements, the number of antenna elements in the antenna array 123 can be increased according to different precision requirements, and then step S450 to step S460 are repeated. The more repetitions, the more accurate the transmission direction of the obtained source signal.

In this embodiment, by sending a source signal with a special bit stream (that is, a data bit stream of all 0s or a data bit stream of all 1s) at the transmitting end of the source signal, the receiving end of the source signal constructs a special The hardware structure (that is, the length difference between microstrip lines and the spacing between array elements) makes the signals coming from different directions have different judgment results at the receiving end, and the direction of the signal coming is judged according to the judgment results.

still closer

To sum up, the source orientation method provided by the embodiment of the present application can realize the judgment of the direction of the source only by switching the antenna element receiving the source signal, so that it does not need to combine multiple IQ acquisitions for positioning. There is no need to collect IQ chips, and only ordinary Bluetooth chips can be used to work, which can effectively reduce the cost, failure rate and compatibility of directional equipment, and can improve the efficiency of directional.

As shown in FIG. 13 , it shows a structural block diagram of a cell orientation system provided by an embodiment of the present application. The cell orientation system includes a first acquisition module 510 , a second acquisition module 520 and a first calculation module 530 .

The first acquiring module 510 is configured to acquire a first signal, where the first signal includes an information source signal sent by an information source received by the first array element;

The second acquiring module 520 is configured to acquire a second signal, where the second signal includes a source signal received by the second array element;

The first calculation module 530 is configured to obtain a first decision value of the source signal according to the first signal and the second signal, and determine a first direction of the source signal according to the first decision value.

As shown in FIG. 14 , it shows a structural block diagram of a cell orientation system provided by an embodiment of the present application. The cell orientation system includes a first acquisition module 610, a second acquisition module 620, a first calculation module 630, a third An acquisition module 640 , a fourth acquisition module 650 , a second calculation module 660 and a third calculation module 670 .

The first acquisition module 610 is configured to acquire a first signal, where the first signal includes an information source signal sent by an information source received by the first array element;

The second acquiring module 620 is configured to acquire a second signal, where the second signal includes a source signal received by the second array element;

The first calculation module 630 is configured to obtain a first decision value of the source signal according to the first signal and the second signal, and determine a first direction of the source signal according to the first decision value.

The third acquiring module 640 is configured to acquire a third signal, where the third signal includes the source signal received by the first array element;

The fourth acquiring module 650 is configured to acquire a fourth signal, where the fourth signal includes a source signal received by another second array element;

The second calculation module 660 is configured to obtain a second decision value of the source signal according to the third signal and the fourth signal, and obtain a second direction of the source signal according to the second decision value;

The third calculation module 670 is configured to obtain a third direction of the information source according to the first direction and the second direction.

Optionally, the source directional device further includes a switching module 680 .

The switching module 680 is used to switch the array element receiving the source signal from the first array element to the second array element after receiving the first time length of the flag bit of the first signal; the first time length is equal to the flag bit to the second array element; The sum of the time at which the directional bit stream starts and the duration of one symbol.

As shown in FIG. 15 , it shows a structural block diagram of a cell orientation system provided by an embodiment of the present application. The cell orientation system includes a first acquisition module 710, a second acquisition module 720, a first calculation module 730, a fifth An acquisition module 740 , a fourth calculation module 750 and a fifth calculation module 760 .

The first acquisition module 710 is configured to acquire a first signal, where the first signal includes a source signal sent by a source received by the first array element;

The second acquiring module 720 is configured to acquire a second signal, where the second signal includes a source signal received by the second array element;

The first calculation module 730 is configured to obtain a first decision value of the source signal according to the first signal and the second signal, and determine a first direction of the source signal according to the first decision value.

A fifth obtaining module 740, configured to obtain a fifth signal, where the fifth signal includes the source signal received by the third array element;

The fourth calculation module 750 is configured to obtain a third decision value of the source signal according to the second signal and the fifth signal, and obtain a fourth direction of the source signal according to the third decision value;

The fifth calculation module 760 is configured to obtain a fifth direction of the information source according to the first direction and the fourth direction.

Optionally, the source directional device further includes a switching module 770 .

The switching module 770 is used to switch the array element receiving the source signal from the first array element to the second array element after receiving the first time length of the flag bit of the first signal; the first time length is equal to the flag bit to the second array element; The sum of the time at which the directional bit stream starts and the duration of one symbol.

As shown in FIG. 1 , it shows a structural block diagram of a device for directing a source of information provided by an embodiment of the present application. The device for directing a cell includes an antenna array 123 and a programmable logic device 121 .

Antenna array 123, the antenna array includes a first array element and a second array element;

The programmable logic device 121 is configured to execute the steps in the above source-oriented method.

Optionally, the second array element includes at least two array elements, and the distance between the first array element and each second array element is equal.

Optionally, the source directional device may further include an antenna switching module, which switches the antenna element for receiving the source signal sent by the source according to the control signal sent by the programmable logic device 121 . The antenna switching module may be a radio frequency switch array 125 .

Optionally, the first array element is electrically connected to the receiving chip 121 through the first microstrip line, the second array element is electrically connected to the receiving chip 121 through the second microstrip line, and the connection between the first microstrip line and the second microstrip line The length difference satisfies the following formula:

The optimal choice of Δw is

When the source signal is a data bit stream of all 1,

The actual product allows a certain error, usually in

As shown in FIG. 16 , it shows a structural block diagram of a source-oriented terminal device provided by an embodiment of the present application; the source-oriented terminal device 800 includes a first processor 801 and a first memory 802 . The source-oriented terminal device 800 may further include one or more of a first multimedia component 803 , a first input/output (I/O) interface 804 , and a first communication component 805 .

Wherein, the first processor 801 is configured to control the overall operation of the source-orientation terminal device 800, so as to complete all or part of the steps in the above-mentioned source-orientation method. The first memory 802 is used to store various types of data to support the operation of the source-oriented terminal device 800, such data may include commands for any application or method operated on the source-oriented terminal device 800 , and application-related data, such as contact data, sent and received messages, pictures, audio, video, etc. The first memory 802 can be realized by any type of volatile or non-volatile storage device or their combination, such as static random access memory (Static Random Access Memory, referred to as SRAM), electrically erasable programmable read-only Memory (Electrically Erasable Programmable Read-Only Memory, referred to as EEPROM), Erasable Programmable Read-Only Memory (Erasable Programmable Read-Only Memory, referred to as EPROM), Programmable Read-Only Memory (Programmable Read-Only Memory, referred to as PROM), Read-Only Memory (ROM for short), magnetic memory, flash memory, magnetic disk or optical disk. Multimedia components 803 may include screen and audio components. The screen can be, for example, a touch screen, and the audio component is used for outputting and/or inputting audio signals. For example, an audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the first memory 802 or sent through the first communication component 805 . The audio component also includes at least one speaker for outputting audio signals. The first I/O interface 804 provides an interface between the first processor 801 and other interface modules, which may be a keyboard, a mouse, buttons, and the like. These buttons can be virtual buttons or physical buttons. The first communication component 805 is used for wired or wireless communication between the source-oriented terminal device 800 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, near field communication (Near Field Communication, NFC for short), 2G, 3G or 4G, or a combination of one or more of them, so the corresponding first communication component 805 can include : Wi-Fi module, Bluetooth module, NFC module.

In an exemplary embodiment, the source-oriented terminal device 800 may be implemented by one or more application-specific integrated circuits (Application Specific Integrated Circuit, ASIC for short), digital signal processors (Digital Signal Processor, DSP for short), digital signal processing devices (Digital Signal Processing Device, referred to as DSPD), programmable logic device (Programmable Logic Device, referred to as PLD), field programmable gate array (Field Programmable Gate Array, referred to as FPGA), controller, microcontroller, microprocessor or other Electronic components are implemented for performing the above-mentioned source-directed method.

In another exemplary embodiment, a computer-readable storage medium including program commands is also provided, and when the program commands are executed by a processor, the steps of the above-mentioned source-orientation method are implemented. For example, the computer-readable storage medium may be the above-mentioned first memory 802 including program commands, and the above-mentioned program commands can be executed by the first processor 801 of the source-directing terminal device 800 to complete the above-mentioned source-directing method.

Corresponding to the above embodiment of the source-orientation method, a readable storage medium is also provided in this embodiment. The readable storage medium described below and the source-orientation method described above may be referred to in correspondence.

A readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, implements the steps of the information source-orientation method in the above-mentioned embodiment of the information source-orientation method.

Specifically, the readable storage medium can be a USB flash drive, a mobile hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, etc., which can store program codes. readable storage media.

As shown in FIG. 17 , it shows a flow chart of a method for sending a source signal provided by an embodiment of the present application, and the method includes step S910 and step S920 .

Step S910. Generate a source signal; the signal sending device 110 generates a source signal to be sent.

Step S920. Send the source signal. The signal sending device 110 sends the source signal through a radio frequency sending device. The source signal is used to be received by the first array element and the second array element in turn, and the source signal received by the first array element is used to combine with the source signal received by the second array element to obtain the first judgment of the source signal value, the first judgment value is used to judge the first sending direction of the source signal.

After the source signal in this embodiment is sent, it is received by the signal receiving device 120. After the signal receiving device 120 receives the source signal, as in the method provided in step S210 to step S230, the signal that sent the source signal The bearing of the transmitting device 110 is oriented.

In an exemplary embodiment, after the second array element receives the source signal, it may further include:

The source signal is sequentially received by the first array element and another second array element, and the source signal received by the first array element is used to combine with the source signal received by another second array element to obtain the second source signal of the source signal Two judgment values, the second judgment value is used to judge the second sending direction of the source signal, and the second sending direction is used to combine with the first sending direction to obtain a third sending direction of the source signal.

Optionally, the source signal includes a flag bit for triggering array element switching, and array element switching includes:

After receiving the first time length of the flag bit, switch the array element receiving the source signal from the current array element to another array element. The first time length is equal to the time from the flag bit to the start position of the directional bit stream and a code The sum of the durations of the meta.

After the source signal in this embodiment is sent, it is received by the signal receiving device 120. After the signal receiving device 120 receives the source signal, as in the method provided in step S310 to step S370, the signal that sent the source signal The bearing of the transmitting device 110 is oriented.

In another exemplary embodiment, after the second array element receives the source signal, it further includes:

The source signal is received by the third array element, and the source signal received by the third array element is used to combine with the source signal received by the second array element to obtain a third judgment value of the source signal, and the third judgment value is used for A fourth sending direction of the source signal is determined, and the fourth sending direction is used in combination with the first sending direction to obtain a fifth sending direction of the source signal.

After the source signal in this embodiment is sent, it is received by the signal receiving device 120. After the signal receiving device 120 receives the source signal, as in the method provided in step S410 to step S460, the signal that sent the source signal The bearing of the transmitting device 110 is oriented.

Although the Bluetooth protocol has been updated to version 5.1, the Bluetooth chips in many electronic products (such as mobile phones) on the market are still version 4.2, and the chips of version 5.1 have not been upgraded. That is to say, mobile phones with only Bluetooth 4.2 chips cannot use Bluetooth The 5.1 protocol sends signals, so even if the 5.1 protocol chip is used in the directional base station, the old mobile phone cannot communicate and decode with the directional base station based on Bluetooth 5.1, so the base station cannot directly obtain the phase/phase difference for orientation. Therefore, the use of Bluetooth 4.2 and below Bluetooth chips can greatly reduce the cost of equipment and increase the compatibility of devices using this method for source direction. Even old mobile phones or other devices that cannot communicate with the directional base station based on Bluetooth 5.1 can use the cell signal sending method provided in this embodiment to send positioning signals.

As shown in FIG. 18 , it shows a structural block diagram of a source signal sending device provided by an embodiment of the present application, and the device includes a source signal generating module 1010 and a source signal sending module 1020 .

A source signal generating module 1010, configured to generate a source signal;

The source signal sending module 1020 is used to send the source signal, the source signal is used to be received by the first array element and the second array element in turn, and the source signal received by the first array element is used to communicate with the second array element The received source signals are combined to obtain a first judgment value of the source signal, and the first judgment value is used to judge a first sending direction of the source signal.

As shown in FIG. 19 , it shows a structural block diagram of a source signal sending terminal device provided by an embodiment of the present application; the source signal sending terminal device 1100 includes a second processor 1101 and a second memory 1102 . The source signal sending terminal device 1100 may also include one or more of a second multimedia component 1103 , a second input/output (I/O) interface 1104 , and a second communication component 1105 .

Wherein, the second processor 1101 is configured to control the overall operation of the source signal sending terminal device 1100, so as to complete all or part of the steps in the above-mentioned source signal sending method. The second memory 1102 is used to store various types of data to support the operation of the source signal sending terminal device 1100, and these data may include, for example, any application program or method for operating on the source signal sending terminal device 1100 commands, as well as application-related data, such as contact data, sent and received messages, pictures, audio, video, and more. The second memory 1102 can be realized by any type of volatile or non-volatile storage device or their combination, such as static random access memory (Static Random Access Memory, referred to as SRAM), electrically erasable programmable read-only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM for short), Erasable Programmable Read-Only Memory (EPROM for short), Programmable Read-Only Memory (PROM for short), Read-Only Memory (ROM for short), magnetic memory, flash memory, magnetic disk or optical disk. Multimedia components 1103 may include screen and audio components. The screen can be, for example, a touch screen, and the audio component is used for outputting and/or inputting audio signals. For example, an audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the second memory 1102 or sent through the second communication component 1105 . The audio component also includes at least one speaker for outputting audio signals. The second I/O interface 1104 provides an interface between the second processor 1101 and other interface modules, and the other interface modules may be a keyboard, a mouse, buttons, and the like. These buttons can be virtual buttons or physical buttons. The second communication component 1105 is used for wired or wireless communication between the source signal sending terminal device 1100 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, near field communication (Near Field Communication, NFC for short), 2G, 3G or 4G, or a combination of one or more of them, so the corresponding second communication component 1105 can include : Wi-Fi module, Bluetooth module, NFC module.

In an exemplary embodiment, the source signal sending terminal device 1100 may be implemented by one or more application-specific integrated circuits (Application Specific Integrated Circuit, ASIC for short), digital signal processors (Digital Signal Processor, DSP for short), digital signal processing Device (Digital Signal Processing Device, referred to as DSPD), Programmable Logic Device (Programmable Logic Device, referred to as PLD), Field Programmable Gate Array (Field Programmable Gate Array, referred to as FPGA), controller, microcontroller, microprocessor or Other electronic components are used to implement the above-mentioned source signal sending method.

In another exemplary embodiment, there is also provided a computer-readable storage medium including a program command, and when the program command is executed by a processor, the steps of the above method for sending a signal source signal are implemented. For example, the computer-readable storage medium can be the above-mentioned second memory 1102 including program commands, and the above-mentioned program commands can be executed by the second processor 1101 of the source signal sending terminal device 1100 to complete the above-mentioned source signal sending method.

Corresponding to the above embodiment of the source signal sending method, a readable storage medium is also provided in this embodiment, and the readable storage medium described below and the source signal sending method described above can be referred to in correspondence with each other.

A readable storage medium, where a computer program is stored on the readable storage medium, and when the computer program is executed by a processor, the steps of the information source signal transmission method in the above embodiment of the information source signal transmission method are implemented.

The above are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

The above is only the specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application, and should cover Within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A source-directed method, the method comprising:

Acquiring a first signal, where the first signal includes a source signal received by the first array element and sent by the source;

acquiring a second signal, where the second signal includes the source signal received by the second array element;

A first judgment value of the information source signal is obtained according to the first signal and the second signal, and a first direction of the information source is obtained according to the first judgment value.
The information source location method according to claim 1, wherein the method further comprises:

acquiring a third signal, where the third signal includes the source signal received by the first array element;

acquiring a fourth signal, where the fourth signal includes the source signal received by another second array element;

Obtaining a second decision value of the source signal according to the third signal and the fourth signal, and obtaining a second direction of the source signal according to the second decision value;

A third direction of the information source is obtained according to the first direction and the second direction.
The information source location method according to claim 1, wherein the method further comprises:

acquiring a fifth signal, where the fifth signal includes the source signal received by the third array element;

Obtaining a third decision value of the source signal according to the second signal and the fifth signal, and obtaining a fourth direction of the source signal according to the third decision value;

A fifth direction of the information source is obtained according to the first direction and the fourth direction.
The signal source location method according to claim 1, wherein, before acquiring the second signal, further comprising:

After receiving the first time length of the flag bit of the first signal, the array element receiving the source signal is switched from the first array element to the second array element; the first time length It is equal to the sum of the time from the flag bit to the start position of the directional bit stream and the duration of one symbol.
The source location method according to claim 1, wherein the source signal includes a data bit stream of all 0s or a data bit stream of all 1s.
A source-directed system, the system comprising:

The first acquisition module is configured to acquire a first signal, where the first signal includes the source signal received by the first array element and sent by the source;

A second acquisition module, configured to acquire a second signal, where the second signal includes the source signal received by the second array element;

The first calculation module is configured to obtain a first judgment value of the information source signal according to the first signal and the second signal, and obtain a first direction of the information source according to the first judgment value.
The source directional system according to claim 6, wherein the system further comprises:

A third acquisition module, configured to acquire a third signal, where the third signal includes the source signal received by the first array element;

A fourth acquisition module, configured to acquire a fourth signal, where the fourth signal includes the source signal received by another second array element;

A second calculation module, configured to obtain a second decision value of the source signal according to the third signal and the fourth signal, and obtain a second direction of the source signal according to the second decision value;

A third calculating module, configured to obtain a third direction of the information source according to the first direction and the second direction.
The source directional system according to claim 6, wherein the system further comprises:

A fifth acquisition module, configured to acquire a fifth signal, where the fifth signal includes the source signal received by the third array element;

A fourth calculation module, configured to obtain a third decision value of the source signal according to the second signal and the fifth signal, and obtain a fourth direction of the source signal according to the third decision value;

A fifth calculation module, configured to obtain a fifth direction of the information source according to the first direction and the fourth direction.
The source directional system according to claim 6, wherein the system further comprises:

A switching module, configured to switch the array element receiving the source signal from the first array element to the second array element after receiving the first time length of the flag bit of the first signal; The first time length is equal to the sum of the time from the flag bit to the start position of the directional bit stream and the duration of one symbol.
The source-oriented system according to claim 6, wherein the source signal comprises a data bit stream of all 0s or a data bit stream of all 1s.
A source directional device, the source directional device comprising:

an antenna array comprising a first array element and a second array element;

A programmable logic device, configured to execute the steps of the method according to any one of claims 1 to 4.
The source directional device according to claim 11, wherein the second array element comprises at least two, and the distance between the first array element and each of the second array elements is equal.
The source directional device according to claim 11, wherein the source directional device further comprises an antenna switching module, and the antenna switching module switches and receives the signal source according to a control signal sent by the programmable logic device. The antenna element from which the source signal is emitted.
The source directional device according to claim 11, wherein the first array element is electrically connected to the receiving chip through the first microstrip line, and the second array element is electrically connected to the receiving chip through the second microstrip line. connection, the length difference between the first microstrip line and the second microstrip line satisfies the following formula:

In formula (1), Δw is the length difference between the first microstrip line and the second microstrip line, n is an integer,
is the wavelength of the cell signal sent by the signal source received by the antenna array in the first microstrip line and in the second microstrip line.
The source directional device according to claim 11, wherein the distance between the first array element and the second array element satisfies the following formula:

In formula (2), d is the distance between the first array element and the second array element, and λ is the wavelength in air of the cell signal sent by the signal source.
A source-oriented terminal device, comprising a first memory, a first processor, and a computer program stored in the first memory and operable on the first processor, the first processor executing the The computer program realizes the steps of the method according to any one of claims 1 to 5.
A readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are realized.
A method for sending a source signal, comprising:

Generate a source signal;

sending the source signal, the source signal is used to be received by the first array element and the second array element in turn, and the source signal received by the first array element is used to communicate with the second array element Combine the received source signals to obtain a first judgment value of the source signal, and the first judgment value is used to judge a first sending direction of the source signal.
The source signal sending method according to claim 18, characterized in that: after the second array element receives the source signal, further comprising:

The source signal is sequentially received by the first array element and another second array element, and the source signal received by the first array element is used for all signals received by the other second array element. The source signal is combined to obtain a second judgment value of the source signal, the second judgment value is used to judge the second sending direction of the source signal, and the second sending direction is used to communicate with the first A sending direction is combined to obtain a third sending direction of the source signal.
The source signal sending method according to claim 18, characterized in that: after the second array element receives the source signal, further comprising:

The source signal is received by a third array element, and the source signal received by the third array element is used to combine with the source signal received by the second array element to obtain the source signal The third judgment value, the third judgment value is used to judge the fourth transmission direction of the source signal, and the fourth transmission direction is used to combine with the first transmission direction to obtain the source signal Fifth sending direction.
The source signal sending method according to claim 18, wherein the source signal includes a flag bit for triggering array element switching, and the array element switching includes:

After receiving the first time length of the flag bit, the array element receiving the source signal is switched from the current array element to another array element, and the first time length is equal to the flag bit to the directional bit stream The sum of the time at the start position and the duration of one symbol.
The source signal sending method according to claim 18, wherein the source signal includes a data bit stream of all 0s or a data bit stream of all 1s.
A source signal sending device, comprising:

A source signal generating module, configured to generate a source signal;

A source signal sending module, configured to send the source signal, the source signal is used to be sequentially received by the first array element and the second array element, and the source signal received by the first array element, It is used to combine with the source signal received by the second array element to obtain a first judgment value of the source signal, and the first judgment value is used to judge a first sending direction of the source signal.
The source signal sending method according to claim 18, the source signal comprises a data bit stream of all 0s or a data bit stream of all 1s.
A source signal sending terminal device, comprising a second memory, a second processor, and a computer program stored in the second memory and operable on the second processor, the second processor executing the The computer program implements the steps of the method according to any one of claims 18-22.
A readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method according to any one of claims 18 to 22 are realized.