WO2018040572A1

WO2018040572A1 - Antenna control method, apparatus and computer storage medium

Info

Publication number: WO2018040572A1
Application number: PCT/CN2017/080454
Authority: WO
Inventors: 王旭辉; 任冠佼
Original assignee: 纳恩博（北京）科技有限公司
Priority date: 2016-08-29
Filing date: 2017-04-13
Publication date: 2018-03-08
Also published as: CN106329119A

Abstract

The present application provides an antenna control method, apparatus and computer storage medium for improving communication quality between a beacon end device and an anchor node end device during orientation changes. The method is applied to beacon end devices. The beacon end device comprises at least two first antennas having different polarization directions. The method comprises: acquiring communication signal strengths between each of the first antennas and a second antenna of the anchor node end device, and determining a target first antenna from the at least two first antennas in accordance with the communication signal strengths, wherein the communication signal strength between the first antenna and the second antenna of the anchor node end device satisfies a predetermined first condition; and controlling the target first antenna to be in a transceiver state, thereby communicating with the anchor node end device through the target first antenna.

Description

Antenna control method, device and computer storage medium

Cross-reference to related applications

The present application is based on a Chinese patent application filed on Jan. 29, 2016, filed on-

Technical field

The present invention relates to the field of electronic technologies, and in particular, to an antenna control method and apparatus, and a computer storage medium.

Background technique

An antenna is arranged on the beacon tag, and the anchor node anchor is provided with two antennas, and the tag and the anchor perform UWB (Ultra Wideband) communication through the above three antennas. However, the tag end is carried by the user, and the posture is variability. The change of the tag attitude will change the polarization direction of the tag-end antenna, and the communication quality between the tag end and the anchor end will decrease.

Therefore, the prior art has a technical problem of how to improve the communication quality when the tag pose changes.

Summary of the invention

The present application provides an antenna control method, apparatus, and computer storage medium for improving communication quality between a beacon end device and an anchor node device when the posture changes.

In a first aspect, the present application provides an antenna control method, which is applied to a beacon end device, where the beacon end device includes at least two first antennas having different polarization directions, and the method includes:

Obtaining a communication signal strength between each of the first antennas and the second antenna of the anchor node device, and determining a target first day from the at least two first antennas according to the communication signal strength a line; wherein, the communication signal strength between the target first antenna and the second antenna of the anchor node device meets a preset first condition;

Controlling that the target first antenna is in a transceiving state, and then communicating with the anchor node device through the target first antenna.

Optionally, the control target first antenna is in a receiving and receiving state, including:

Determining whether the target first antenna is currently in a transceiving state, and if so, maintaining a transceiving state of the target first antenna; if not, controlling the target first antenna to switch to a transceiving state, and controlling the target The first antenna other than one antenna is in a non-transmission state.

Optionally, determining the target first antenna from the at least two first antennas according to the strength of the communication signal, including:

Selecting, from the communication signal strength between each of the first antennas and the second antenna, a first antenna corresponding to a maximum communication signal strength as the target first antenna;

The communication signal strength between the first antenna and the second antenna is represented by the following signal strength:

The received strength of the signal sent by the first antenna to the second antenna, or the received strength of the signal sent by the second antenna to the first antenna; when the second antenna is sent to the first antenna When the received strength of the signal is received, the beacon end device is required to obtain the receiving strength of the signal sent by the second antenna to the first antenna from the anchor node end device.

Optionally, obtaining the communication signal strength between each of the first antennas and the second antenna of the anchor node device, including:

A communication signal strength between each of the first antennas and the second antenna is obtained by sequentially communicating with the second antenna by each of the first antennas.

Optionally, after the first antenna corresponding to the maximum communication signal strength is selected from the communication signal strengths between the first antenna and the second antenna, the method is the target first antenna, the method Also includes:

Detecting a current posture of the beacon end device, and obtaining a detection result;

Determining, according to the detection result, a current polarization direction of each of the first antennas, and determining, according to a polarization direction of the second antenna, a polarization direction of the target first antenna and the second antenna Whether the polarization direction is matched; if yes, performing a process of subsequently controlling the target first antenna to be in a transceiving state; if not, regaining a communication signal between each of the first antenna and the second antenna of the anchor node device Intensity and re-determination of the target first antenna.

Optionally, determining a current polarization direction of each of the first antennas according to the detection result, and determining, according to a polarization direction of the second antenna, a polarization direction of the target first antenna and the Whether the polarization directions of the second antenna match, including:

Determining a current polarization direction of each of the first antennas according to the detection result and a setting orientation of each of the first antennas in the beacon end device;

Determining, according to the polarization direction of the second antenna obtained in advance, whether the first antenna having the smallest angle between the current polarization direction and the polarization direction of the second antenna is the target first antenna.

Determining whether the communication signal strength between the target first antenna and the second antenna reaches a threshold, and if so, performing a process of subsequently controlling the target first antenna to be in a transceiving state; if not, generating an alarm prompt And regaining the communication signal strength between each of the first antennas and the second antenna of the anchor node device, and re-determining the target first antenna.

Optionally, the first antenna of the control target is switched to the transmitting and receiving state, and the first antenna other than the first antenna of the control target is in a non-transceive state, including:

After determining that a complete positioning operation is performed between the beacon end device and the anchor node device, the target first antenna is switched to the transmitting and receiving state, and the first antenna other than the target first antenna is not received or received. status.

In a second aspect, the present application provides an antenna control apparatus, which is disposed on a beacon end device, where the beacon end device includes at least two first antennas having different polarization directions, and the apparatus includes:

Obtaining a module configured to obtain a communication signal strength between each of the first antenna and the second antenna of the anchor node device;

a determining module, configured to determine a target first antenna from the at least two first antennas according to the communication signal strength; wherein a communication signal between the target first antenna and a second antenna of the anchor node device The intensity satisfies the preset first condition;

And a control module, configured to control the target first antenna to be in a transceiving state, and further communicate with the anchor node device by using the target first antenna.

Optionally, the control module is configured to determine whether the target first antenna is currently in a transmitting and receiving state, and if yes, maintaining a transmitting and receiving state of the target first antenna; if not, controlling the target first antenna Switching to the transmitting and receiving state, and controlling the first antenna other than the target first antenna to be in a non-transceiving state.

Optionally, the determining module is configured to select, from the communication signal strength between each of the first antennas and the second antenna, a first antenna corresponding to a maximum communication signal strength as the target first antenna;

Optionally, the obtaining module is configured to obtain a communication signal strength between each of the first antennas and the second antenna by sequentially communicating with the second antenna by each of the first antennas.

Optionally, the device further includes:

a detecting module, configured to: after selecting a first antenna corresponding to a maximum communication signal strength from a communication signal strength between each of the first antennas and the second antenna as the target first antenna, The current posture of the beacon device is detected, and the detection result is obtained;

a first determining module, configured to determine a current polarization direction of each of the first antennas according to the detection result, and determine a polarization direction of the target first antenna according to a polarization direction of the second antenna Whether the polarization direction of the second antenna matches; if yes, notifying the control module to perform a process of subsequently controlling the target first antenna to be in a transceiving state; if not, notifying the obtaining module to regain each first The strength of the communication signal between the antenna and the second antenna of the anchor node device, and notifying the determining module to redetermine the target first antenna.

Optionally, the first determining module is configured to determine a current polarization direction of each first antenna according to the detection result and a setting direction of each first antenna in the beacon end device; Predetermining the polarization direction of the second antenna, and determining whether the first antenna having the smallest angle between the current polarization direction and the polarization direction of the second antenna is the target first antenna.

Optionally, the device further includes:

a second determining module, configured to: after selecting a first antenna corresponding to a maximum communication signal strength from a communication signal strength between each of the first antennas and the second antenna, is the target first antenna, Determining whether the communication signal strength between the target first antenna and the second antenna reaches a threshold, and if so, notifying the control module to perform a process of subsequently controlling the target first antenna to be in a transceiving state; if not, An alarm prompt is generated, and the acquisition module is notified to regain the communication signal strength between each of the first antennas and the second antenna of the anchor node device, and the determination module is notified to re-determine the target first antenna.

Optionally, the control module is configured to control the target first antenna to switch to the receiving and receiving state, and control the target after determining a complete positioning operation between the beacon end device and the anchor node device. The first antenna other than the first antenna is in a non-transceive state.

In a third aspect, the present application also provides a computer storage medium comprising a set of instructions that, when executed, cause at least one processor to perform operations comprising:

Obtaining a communication signal strength between each of the first antennas and a second antenna of the anchor node device, and determining a target first antenna from the at least two first antennas according to the communication signal strength; wherein the target The communication signal strength between the first antenna and the second antenna of the anchor node device meets a preset first condition;

Controlling that the target first antenna is in a transceiving state, and communicating with the anchor node device through the target first antenna.

The above one or more technical solutions in the present application have at least one or more of the following technical effects:

In the present application, the beacon end device includes at least two first antennas having different polarization directions, and according to the communication signal strength between each of the first antennas and the second antenna of the anchor node device, from at least two first A target first antenna that satisfies a preset first condition is determined in the antenna, and then the target first antenna is controlled to be in a transceiving state, and then communicated with the anchor node device through the target first antenna. Therefore, on the one hand, the present invention sets antennas with different polarization directions on the beacon end device, and on the other hand, the communication signal strength of each of the first antenna and the second antenna is selected to meet the requirements of the beacon end device. The target first antenna of a condition communicates. Therefore, the beacon end device in the present application can still communicate with the anchor node device through an antenna that communicates well with the anchor node device when the posture changes. It can be seen that the invention improves the communication quality between the beacon end device and the anchor node end device when the posture changes.

DRAWINGS

1 is a flowchart of an antenna control method according to the present application;

2 is a schematic diagram of a beacon end device and an anchor node end device in the present application;

3 is a schematic diagram of another beacon end device and an anchor node end device in the present application;

4 is a schematic diagram of a possible data packet transmission and reception in the present application;

FIG. 5 is a schematic diagram of an antenna control apparatus in the present application.

detailed description

In order to solve the above technical problems, the ideas provided by the present application are as follows:

The technical solutions of the present invention are described in detail below with reference to the accompanying drawings and specific embodiments. It is understood that the specific features of the embodiments and the embodiments of the present application are the detailed description of the technical solutions of the present application, and are not limited to the technical solutions of the present application. In the case of no conflict, the technical features in the embodiments of the present application and the embodiments may be combined with each other.

The term "and/or" in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

A first aspect of the present invention provides an antenna control method. Referring to FIG. 1, the present application is in the middle of the present application. Flow chart of the line control method. The method includes:

S101: Obtain a communication signal strength between each first antenna and a second antenna of the anchor node device, and determine a target first antenna from the at least two first antennas according to the communication signal strength;

S102: Control the target first antenna to be in a transceiving state, and communicate with the anchor node device by using the target first antenna.

Specifically, the beacon end device in the present application may be a device such as a remote controller or a smart watch that can adjust the posture arbitrarily. The anchor node end device is, for example, a balance car, a drone, a robot or a controller, etc., and the portion of the anchor node end device provided with the antenna is usually stationary.

The present application does not specifically limit the beacon end device and the anchor node end device. The beacon end device and the anchor node end device in the present application can communicate based on the UWB technology, and the beacon end device of the UWB communication is also referred to as a tag, a tag end, a tag end device or a tag device, etc., and the anchor node end device is abbreviated. It is an anchor, an anchor, an anchor device, or an anchor device.

The beacon end device in the present application is provided with at least two first antennas, and each of the first antennas is disposed in a different orientation, and thus the polarization directions of the first antennas are different. For example, as shown in FIG. 2 and FIG. 3, the beacon end device is provided with two first antennas whose polarization directions are vertical, ANT_11 and ANT_12. In a specific implementation process, the polarization ranges of the at least two first antennas should cover the surrounding space of the beacon end device as much as possible. The number of the first antennas and the orientation of the first antenna can be selected according to actual needs by those skilled in the art. This application does not impose any specific restrictions.

In addition, the anchor node device is provided with a second antenna, such as ANT_21 and ANT_22 shown in FIGS. 2 and 3. The number of second antennas is not specifically limited in this application.

First, in S101, the communication signal strength of each of the first antenna and the second antenna is obtained, and then the first antenna that satisfies the preset first condition is selected as the target first antenna. In the present application, the first condition is a condition indicating the best communication quality. Therefore, the target first antenna satisfying the first condition is the first antenna having the best communication quality among the at least two first antennas.

In the present application, the S101 determines the target first antenna from the at least two first antennas according to the strength of the communication signal, and includes:

Specifically, in a specific implementation process, in order to obtain the communication signal strength between each of the first antenna and the second antenna, the following process may be implemented:

It should also be pointed out that the strength of the communication signal between the two antennas can be characterized by parameters such as signal-to-noise ratio, signal strength, and interference signal strength. For example, the first antenna with the largest signal to noise ratio can be regarded as the target first antenna with the strongest communication signal strength; or the first antenna with the smallest interference signal strength can be regarded as the target first antenna with the strongest communication signal strength.

In addition, a plurality of parameters for evaluating the strength of the communication signal may be used in combination, for example, two first antennas with the smallest interference signal may be selected, and then the one with the largest signal to noise ratio is selected from the two first antennas. The first antenna serves as a target first antenna. Of course, it should be understood that the combination of parameters provided in this paragraph is only an example, and more signal strength evaluation parameters and different combinations may be provided in the actual processing, which is not exhaustive in this application.

Specifically, before S101, each of the first antennas is switched to communicate with the second antenna according to a preset interval. The preset interval is, for example, 5 ms, 1 ms, etc., and the present invention is not specifically limited. Specifically, At the first moment, controlling any one of the first antennas to be in the transmitting and receiving state, and controlling the other first antennas to be in a non-transceive state; and controlling the other first antenna to be in the transmitting and receiving state at the second moment of the preset interval after the first moment And controlling the first antenna and the other first antennas that are in the transmitting and receiving state at the first moment to be in a non-transceive state. And so on, until each of the first antennas is in a transceiving state and communicates with the second antenna.

During each of the first antennas being individually in the transmitting and receiving state, the communication signal strength between the first antenna and the second antenna currently in the transmitting and receiving state is obtained.

In the present application, the obtained communication signal strength may be obtained by the beacon end device itself; it may also be obtained by the anchor node end device and then provided to the beacon end device.

Specifically, if the beacon end device itself obtains, the communication signal strength between the first antenna and the second antenna is specifically the receiving strength of the signal sent by the first antenna to the second antenna. Specifically, the beacon end device receives an arbitrary signal sent by the anchor node device through the second antenna, reads the receiving strength when receiving the arbitrary signal, and uses the receiving strength as a communication signal between the first antenna and the second antenna. strength.

For example, at least two first antennas are as shown in FIG. 3. The reception strength of ANT_11 to ANT_21 is 3 dB, and the reception strength of ANT_12 to ANT_21 is 100 dB. Therefore, the communication signal strength between ANT_11 and ANT_21 is 3 dB, and the communication signal strength between ANT_12 and ANT_21 is 100 dB.

If obtained by the anchor node device, the communication signal strength between the first antenna and the second antenna is specifically the reception strength of the signal sent by the second antenna to the first antenna. Specifically, the anchor node device receives any signal sent by the beacon end device through the first antenna that is currently in the transmitting and receiving state, reads the receiving strength when receiving the signal, and the antenna identifier carried in the signal, and the receiving strength is received. Recorded as the communication signal strength of the first antenna corresponding to the antenna identifier. The antenna identifier is used to uniquely identify a first antenna on a beacon end device.

Then, after all the first antennas communicate with the second antenna, the recorded antenna identification and The corresponding receiving strength is fed back to the beacon end device, so that the beacon end device obtains the receiving strength of the second antenna to the first antenna.

For example, at least two antennas are shown in Figure 3. ANT_22 receives a signal from the signalling device. The received reception strength is 3 dB, and the antenna identification is "Tom_ANT_11". The antenna identifier “Tom_ANT_11” represents the ANT_11 antenna of the beacon end device Tom. The anchor node device records "Tom_ANT_11-3dB". Next, ANT_22 receives a signal from the beacon end device again, and reads the received strength to 100 dB, and the antenna identifier is "Tom_ANT_12". The anchor node device records "Tom_ANT_12-100dB". Next, the anchor node device transmits the recorded "Tom_ANT_11-3dB, Tom_ANT_12-100dB" to the beacon end device. The beacon end device parses the record sent by the anchor node end device, determines that the communication signal strength of the ANT_11 and the second antenna is 3 dB, and the communication signal strength of the ANT_12 and the second antenna is 100 dB.

Next, the beacon end device selects the strongest communication signal strength from all communication signal strengths according to the strength of the communication signal obtained by itself or the strength of the communication signal provided by the anchor node device, and corresponds the strongest communication signal strength. The first antenna is determined to be the target first antenna.

Using the above example, it is assumed that the beacon end device obtains the communication signal strengths of ANT_11 and ANT_12 and the second antenna, respectively, of 3 dB and 100 dB. Among them, ANT_12 has the strongest communication signal strength, so it is determined that ANT_12 is the target first antenna.

After determining the target first antenna, in S102, the control target first antenna is in a transceiving state, and then communicates with the anchor node device through the target first antenna.

Since the determined target first antenna may be in the transmitting and receiving state, and may not be currently in the transmitting and receiving state, in the present application, S102 specifically includes:

Specifically, after determining the target first antenna, determining whether the target first antenna is in the receiving and receiving status. Specifically, the beacon end device can read the state value of the target first antenna, and if the state value indicates the receiving and receiving state, determine that the target first antenna is in the transmitting and receiving state; otherwise, if the state value indicates the non-transceiving state, determine The target first antenna is in a non-transceive state.

Further, if the target first antenna is already in the transmitting and receiving state, the antenna does not need to be switched, and the current state of the target first antenna, that is, the transmitting and receiving state, is still maintained. If the target first antenna is in a non-transceive state, the first antenna of the target is sent and received, and the other antennas other than the target first antenna are in a non-transceive state to switch to the target first antenna and the anchor node. Set up communication.

For example, assume that at the time T1, the beacon end device's posture is as shown in FIG. 2, and communicates with the anchor node device through ANT_11. At the time T2 after T1, the attitude of the beacon end device is as shown in FIG. Through detection, it is determined that the signal strength of ANT_12 is stronger than ANT_11 at time T2, which is the strongest of the two first antennas, so it is determined that ANT_12 is the target first antenna. Since ANT_11 is in the transceiving state at this time, ANT_12 is in the non-transceive state. Therefore, the beacon end device switches ANT_12 from the non-transceive state to the transceiving state, and switches ANT_11 from the transceiving state to the non-transceiving state, so that the beacon device is from T2. At the beginning, communication with the anchor node device is performed through ANT_12.

As another example, assume that the beacon end device remains at the attitude shown in FIG. 2 at time T2. Through the detection, the communication signal strength of ANT_11 and the second antenna is still the strongest, so the target first antenna is still ANT_11. Since ANT_11 is already in the transmitting and receiving state at this time, there is no need to switch the antenna, and ANT_11 is still in the transmitting and receiving state, and ANT_12 is in the non-transceiving state.

As can be seen from the above description, in one aspect of the present application, antennas having different polarization directions are disposed on the beacon end device, and on the other hand, each of the first antenna and the second antenna is selected regardless of the attitude of the beacon end device. The target first antenna whose communication signal strength satisfies the first condition communicates. Therefore, the beacon end device in the present application can still communicate with the anchor node device through the antenna that communicates well with the anchor node device when the posture changes. It can be seen that the application improves the communication quality between the beacon end device and the anchor node device when the posture changes.

As an optional implementation manner, after the first antenna corresponding to the maximum communication signal strength is selected as the target first antenna, the method further includes:

Determining, according to the detection result, a current polarization direction of each of the first antennas, and a polarization direction of the second antenna, determining a polarization direction of the target first antenna and a pole of the second antenna Whether the matching direction is matched; if yes, performing subsequent processing to control that the target first antenna is in the transmitting and receiving state; if not, regaining the communication signal strength between each of the first antenna and the second antenna of the anchor node device And re-determine the target first antenna.

First, the current posture of the beacon end device is detected, and the detection result is obtained. Specifically, in the present application, the motion state of the beacon end device is detected by a gravity sensor or a gyroscope, and then the current posture of the beacon end device is calculated according to the detected motion state.

Next, according to the detection result, the current polarization of each first antenna is determined, and according to the polarization direction of the second antenna, it is determined whether the polarization direction of the target first antenna matches the polarization direction of the second antenna.

Specifically, in a specific implementation process, the portion of the anchor node device that sets the second antenna generally remains relatively stationary, or is relatively stationary, so that the polarization direction of the second antenna is fixed or nearly fixed. For convenience of description, in the present application, the polarization direction of the second antenna is regarded as fixed.

In the present application, determining the current polarization direction of the first antenna and determining whether the polarization direction of the target first antenna matches the polarization direction of the second antenna may be implemented by the following process:

First, the current polarization direction of each antenna is determined according to the detection result and the orientation of each antenna. For example, as shown in FIG. 2 and FIG. 3, it is assumed that the first antenna ANT_11 is provided. The orientation is parallel to the fixed plate of the beacon end device, and the orientation of the ANT_12 is perpendicular to the fixed plate. When the current posture of the beacon end device is as shown in FIG. 2, according to the orientation orientation of ANT_11 and ANT_12, it can be determined that the polarization direction of ANT_11 is vertical ground upward, and the polarization direction of ANT_12 is parallel to the ground. When the current posture of the beacon end device is as shown in FIG. 3, according to the orientation orientation of ANT_11 and ANT_12, it can be determined that the polarization direction of ANT_11 is parallel to the ground, and the polarization direction of ANT_12 is perpendicular to the ground upward.

Then, an angle between a current polarization direction of each antenna and a polarization direction of the second antenna is calculated according to the polarization direction of the second antenna obtained in advance.

Specifically, since the polarization direction of the second antenna is fixed, the default polarization direction of the second antenna can be directly set at the beacon end device, for example, perpendicular to the ground. Alternatively, the anchor node device may also send the polarization direction of the second antenna to the beacon end device after establishing a communication connection with the beacon device.

In a specific implementation process, an angle may be obtained by subtracting a polarization direction of the second antenna from a current polarization direction of the first antenna, or may be obtained by subtracting a current polarization direction of the first antenna from a polarization direction of the second antenna. The angle is not specifically limited in the present invention.

Next, it is judged whether the polarization direction of the target first antenna and the polarization direction of the second antenna are the smallest among all the angles. If the angle between the polarization direction of the target first antenna and the polarization direction of the second antenna is the smallest, it indicates that the target first antenna not only has the strongest communication signal strength among all the first antennas, but also the polarization direction and the pole of the second antenna. The direction is matched, so the target first antenna is determined accurately, and the target first antenna has the best communication quality among all current first antennas. On the contrary, if the angle between the polarization direction of the target first antenna and the polarization direction of the second antenna is not the minimum, it indicates that the target first antenna has the strongest communication signal strength, but the pole of the target first antenna. The direction of the polarization does not match the polarization direction of the second antenna, so the target first antenna may not be the best communication quality among all the first antennas.

The target first antenna is exemplified by taking ANT_11 in FIG. 2 and FIG. 3 as an example. First First, referring to FIG. 2, the polarization directions of the second antennas ANT_21 and ANT_22 are all perpendicular to the ground, so the polarization direction of any antenna of ANT_21 or ANT_22 is used as the polarization direction of the second antenna. The polarization direction of ANT_21 minus the current polarization direction of ANT_11 obtains an angle of 0 degrees, and the polarization direction of ANT_21 minus the current polarization direction of ANT_12 obtains an angle of 90 degrees clockwise. In the above two angles, the current polarization direction of ANT_11 and the polarization direction of ANT_21 are the smallest angle, so it is judged that ANT_11 has the best communication quality at this time.

Referring again to FIG. 3, the polarization direction of ANT_21 minus the current polarization direction of ANT_11 obtains an angle of 90 degrees counterclockwise, and the polarization direction of ANT_21 minus the current polarization direction of ANT_12 obtains an angle of 0 degrees. In the above two angles, the current polarization direction of ANT_11 is not the smallest angle with the polarization direction of ANT_21 by 90 degrees, so ANT_11 may not be the first antenna with the best communication quality.

In the present application, if the angle between the polarization direction of the target first antenna and the polarization direction of the second antenna is the smallest, then S102 is performed. On the other hand, if the angle between the polarization direction of the target first antenna and the polarization direction of the second antenna is not the smallest, it indicates that the target first antenna determined in S101 may not be the best communication quality. Therefore, in the present application, S101 is performed again to re-determine the target first antenna until the determined target first antenna polarization direction matches the polarization direction of the second antenna.

It can be seen from the above description that it is determined whether the polarization direction of the target first antenna matches the polarization direction of the second antenna, and if so, the communication quality between the target first antenna and the second antenna is optimal, and then the target is switched. One antenna communication. Otherwise, the target first antenna is re-determined until it is determined that the target first antenna whose polarization direction matches and the communication signal is strongest. Through the foregoing embodiment, the first antenna that ensures that the target first antenna is the best communication quality is implemented, and the abnormality of the target first antenna polarization direction or the target first antenna is reduced, for example, the target first antenna is reduced. influences.

Of course, in the specific implementation process, in order to save equipment resources and determine the target first antenna for the user as soon as possible, a preset number of times, for example, 3 or 4, may be set. Then, if the number of times of the target first antenna is repeatedly determined to reach a preset number of times, the polarization direction of the target first antenna is still If the polarization directions of the second antenna are not matched, an alarm prompt may be output, prompting the user to check the antenna, or determining the first antenna whose polarization direction is matched as the target first antenna.

As another optional implementation manner, after S101, the method further includes:

Specifically, in a specific implementation process, the beacon end device may be blocked, damaged, or faulty, and the communication signal strength is insufficient even if the communication signals of the target first antenna and the second antenna are the strongest. Support for normal communication. Therefore, in the present application, after determining the target first antenna, it is further necessary to further obtain the communication signal strength between the target first antenna and the second antenna. In the present application, the obtained communication signal strength may be obtained by the beacon end device itself; it may also be obtained by the anchor node end device and then provided to the beacon end device.

Specifically, if obtained by the beacon end device itself, the communication signal strength between the target first antenna and the second antenna is specifically the reception strength of the signal sent by the target first antenna to the second antenna. If obtained by the anchor node device, the communication signal strength between the target first antenna and the second antenna is specifically the reception strength of the signal sent by the second antenna to the target first antenna. The communication signal strength between each of the first antenna and the second antenna has been obtained in detail in the above. In this embodiment, the communication signal strength between the target first antenna and the second antenna is similar, so here is not I will repeat them one by one.

Next, the beacon end device determines whether the communication signal strength between the target first antenna and the second antenna reaches a threshold according to the strength of the communication signal obtained by itself or the strength of the communication signal provided by the anchor node device. The threshold in the present application is the minimum strength at which the first antenna and the second antenna can communicate normally. The person skilled in the art to which the present invention pertains is not limited by the actual setting.

If the communication signal strength between the target first antenna and the second antenna reaches a threshold, indicating a letter The target device can normally communicate with the anchor node device through the target first antenna, and thus S102 is performed. On the other hand, if the communication signal strength between the target first antenna and the second antenna does not reach the threshold, it indicates that the target first antenna determined in S101 does not support normal communication with the anchor node device, so in the present application, execute again. S101, to re-determine the target first antenna until the determined communication signal strength between the target first antenna and the second antenna reaches a threshold. At the same time, an alarm message is generated to prompt the user to detect the beacon end device and the first antenna.

It can be seen from the above description that it is determined whether the communication signal strength between the target first antenna and the second antenna reaches a threshold value, and if so, the communication quality between the target first antenna and the second antenna is not only optimal, but the communication quality is qualified. At this time, communication is performed through the target first antenna. Otherwise, the target first antenna is re-determined until it is determined that the target first antenna is of acceptable communication quality. Through the above embodiments, it is ensured that the current communication quality of the target first antenna is sufficient to support normal communication, and the normal communication cannot be avoided after switching to the target first antenna.

Further, in order to prevent the beacon end device switching antenna from affecting the positioning of the beacon end device by the anchor node end device, in the present application, after determining a complete positioning operation between the beacon end device and the anchor node end device, The control target first antenna is switched to the transmitting and receiving state, and the first antenna other than the control target first antenna is in a non-transceiving state.

The following is a brief introduction to the method for the anchor node device to locate the beacon device. Please refer to FIG. 4, which is a schematic diagram of a possible data packet transmission and reception.

The anchor node device and the beacon device use TWR (Two-Way Ranging) method for ranging. In the present application, in order to locate the beacon end device, each ranging needs to be based on 3 communications.

First, the beacon end device sends the first data packet to the anchor node end device. When the beacon end device sends the first data packet, it records the timestamp of sending the first data packet, and the timestamp of sending the first data packet is tt1.

Second, the anchor node device receives the first data packet and records the time of receiving the first data packet. In this case, the time stamp in which the first packet is received by the present application is ta1. Then, the anchor node device feeds back the second data packet to the beacon end device to notify the beacon end device that the first data packet has been received. While the second data packet is being sent, the timestamp of transmitting the second data packet is recorded, and the time stamp for transmitting the second data packet is ta2.

Third, the beacon end device receives the second data packet and records the timestamp of receiving the second data packet. In this application, the time stamp of the second data packet is received as tt2. The beacon end device further calculates the time tt3 at which the third data packet is transmitted, and includes the recorded tt1, tt2, and tt3 in the third data packet. When the beacon end device clock reaches tt3, the third data packet is sent to the anchor node end device to notify the anchor node end device to successfully receive the second data packet.

Fourth, the anchor node device receives the third data packet, and records the timestamp of receiving the third data packet, which is recorded as ta3.

Next, since the clocks of the beacon end device and the anchor node device may not be synchronized, it needs to be calculated.

T _round1 =tt2-tt1,

T _reply1 =ta2–ta1,

T _round2 =ta3–ta2,

T _reply2 =tt3–tt2.

Where T _round1 indicates the time from the transmission of the first data packet to the reception of the feedback, T _reply1 indicates the time when the anchor node device feeds back the second data packet, and T _round2 indicates the time from the transmission of the second data packet to the reception of the feedback, T _Reply2 indicates that the beacon end device feeds back the third data packet; T _{prop in} Fig. 4 indicates the transit time of the data packet from being transmitted to being received.

It can be seen that T=(T _round1 –T _reply1 )/2 is the transit time of the first data packet sent from the beacon end device to the anchor node end device. Therefore, the distance DIS between the beacon end device and the anchor node device is DIS=T*V. Where V is the signal propagation speed and is a known amount.

Further, the angle is detected using a PDOA (Phase Difference of Arrival) method. Specifically, the anchor node devices ANT_21 and ANT_22 are obtained to receive the phase of the third data packet (or the first data packet), and in the present application, the ANT_21 receives the third data packet (or The phase of a data packet is denoted as P1 (unit radians), and the phase at which ANT_22 receives the third data packet (or the first data packet) is denoted as P2 (unit radians). Therefore, the phase difference PD = P1 - P2. The conversion to angle is (PD/(2π))*360.

Of course, in the specific implementation process, the angle may also be detected by using an AOA (Angle of Arrival) or TDOA (Time Difference of Arrival), and the present invention does not specifically limit the present invention.

The phase difference can be further converted into an azimuth, and then the anchor node device locates the beacon end device according to the detected distance.

In the present application, if the beacon end device detects the communication signal strength between the first antenna and the second antenna, the beacon end device may specifically detect the reception strength of the second data packet received by each of the first antennas. Similarly, if the beacon end device detects the communication signal strength between the target first antenna and the second antenna, the beacon end device may specifically detect the receiving strength of the second data packet received by the target first antenna.

If the anchor node device detects the strength of the communication signal between the first antenna and the second antenna, the anchor node device may specifically detect that the second antenna receives the first data packet or the third data that is sent by each of the first antennas. The receiving strength of the packet. Of course, in order to facilitate the difference between the transmitting antennas, the first data packet and the third data packet further include an antenna identifier of the first antenna that transmits the data packet. Similarly, if the anchor signal strength between the target first antenna and the second antenna is detected by the anchor node end device, the anchor node end device may specifically detect the first data packet or the first data packet sent by the second antenna receiving target first antenna. The receiving strength of the three packets.

Further, if the anchor node end device detects the reception strength of each of the first antennas or the target first antennas by detecting the reception strength of the received first data packet, the detected reception strength may further be packetized and sent in the second data packet. The beacon device is provided to enable the beacon device to obtain the communication signal strength.

In addition, in the specific implementation process, in order to save equipment resources and reduce the frequency of data packet transmission, The first data packet, the second data packet, and the third data packet may further include various information and data that the beacon end device interacts with the anchor node, for example, a control command sent by the anchor node to the beacon end, and a beacon. The request command of the terminal, the polarization direction of the second antenna, the posture of the beacon end device, and the like. A person of ordinary skill in the art to which the present invention pertains may make selections according to actual conditions, and the present invention is not specifically limited.

Based on the same inventive concept as the antenna control method in the foregoing embodiment, the second aspect of the present invention further provides an antenna control apparatus, which is disposed on the beacon end device, as shown in FIG. 5, and includes:

Based on the same inventive concept as the antenna control method in the foregoing embodiment, the second aspect of the present invention further provides an antenna control apparatus, as shown in FIG. 5, including:

The obtaining module 101 is configured to obtain a communication signal strength between each of the first antennas and the second antenna of the anchor node device;

The determining module 102 is configured to determine, according to the communication signal strength, a target first antenna from the at least two first antennas; wherein, the communication between the target first antenna and the second antenna of the anchor node device The signal strength satisfies a preset first condition;

The control module 103 is configured to control the target first antenna to be in a transceiving state, and then communicate with the anchor node device through the target first antenna.

Specifically, the control module 103 is configured to determine whether the target first antenna is currently in the transmitting and receiving state, and if yes, maintaining the transmitting and receiving state of the target first antenna; if not, controlling the target first antenna to switch to Transmitting and receiving, and controlling the first antenna other than the target first antenna to be in a non-transceive state.

The determining module 102 is configured to select, from the communication signal strength between each of the first antennas and the second antenna, a first antenna corresponding to a maximum communication signal strength as the target first antenna;

The received strength of the signal sent by the first antenna to the second antenna, or the second day a receiving strength of a signal sent by the line to the first antenna; when the receiving strength of the signal sent by the second antenna to the first antenna is required, the beacon end device is required to obtain the first part from the anchor node end device The received strength of the signal sent by the second antenna to the first antenna.

The obtaining module 101 is configured to sequentially communicate with the second antenna through each of the first antennas to obtain a communication signal strength between each of the first antennas and the second antenna.

Further, the device further includes:

a first determining module, configured to determine a current polarization direction of each of the first antennas according to the detection result, and determine a polarization direction of the target first antenna according to a polarization direction of the second antenna Whether the polarization direction of the second antenna matches; if yes, notifying the control module 103 to perform a process of subsequently controlling the target first antenna to be in a transceiving state; if not, notifying the obtaining module 101 to regain each first The strength of the communication signal between the antenna and the second antenna of the anchor node device, and notifying the determination module 102 to re-determine the target first antenna.

The first determining module is configured to determine a current polarization direction of each first antenna according to the detection result and a setting direction of each first antenna in the beacon end device; according to the previously obtained a polarization direction of the second antenna, determining whether the first antenna having the smallest angle between the current polarization direction and the polarization direction of the second antenna is the target first antenna.

Or, further, the device further includes:

a second determining module, configured to: after selecting a first antenna corresponding to a maximum communication signal strength from a communication signal strength between each of the first antennas and the second antenna, is the target first antenna, Determining whether the communication signal strength between the target first antenna and the second antenna reaches a threshold, and if so, notifying the control module 103 to perform a process of subsequently controlling the target first antenna to be in a transceiving state; if not, Then generate an alarm prompt and notify the acquisition The module 101 regains the communication signal strength between each of the first antennas and the second antenna of the anchor node device and notifies the determination module 102 to re-determine the target first antenna.

After determining that the complete positioning operation is performed between the beacon end device and the anchor node device, the control module 103 controls the target first antenna to switch to the transmitting and receiving state, and controls the first antenna other than the target first antenna. It is not in the state of sending and receiving.

The various changes and specific examples of the antenna control method in the foregoing embodiments of FIG. 1 to FIG. 4 are also applicable to the antenna control apparatus of the present embodiment. Those skilled in the art can clearly know by the foregoing detailed description of the antenna control method. The implementation method of the antenna control device in this embodiment is not detailed here for the sake of brevity of the description.

In addition, the present application also provides a computer storage medium comprising a set of instructions that, when executed, cause at least one processor to perform operations including:

The computer storage medium can also perform various processing procedures provided in the foregoing methods, and details are not described herein.

The above one or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of the method, apparatus (system), and computer program product according to the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded into a computer or other programmable data processing device Having a series of operational steps performed on a computer or other programmable device to produce computer-implemented processing such that instructions executed on a computer or other programmable device are provided for implementing one or more processes in a flowchart and/or Or block diagram the steps of a function specified in a box or multiple boxes.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

An antenna control method is applied to a beacon end device, where the beacon end device includes at least two first antennas having different polarization directions, and the method includes:

Obtaining a communication signal strength between each of the first antennas and a second antenna of the anchor node device, and determining a target first antenna from the at least two first antennas according to the communication signal strength; wherein the target The communication signal strength between the first antenna and the second antenna of the anchor node device meets a preset first condition;

Controlling that the target first antenna is in a transceiving state, and communicating with the anchor node device through the target first antenna.
The method of claim 1 wherein controlling the target first antenna to be in a transceiving state comprises:

Determining whether the target first antenna is currently in a transceiving state, and if so, maintaining a transceiving state of the target first antenna; if not, controlling the target first antenna to switch to a transceiving state, and controlling the target The first antenna other than one antenna is in a non-transmission state.
The method of claim 2, wherein determining the target first antenna from the at least two first antennas according to the communication signal strength comprises:

Selecting, from the communication signal strength between each of the first antennas and the second antenna, a first antenna corresponding to a maximum communication signal strength as the target first antenna;

The communication signal strength between the first antenna and the second antenna is represented by the following signal strength:

The received strength of the signal sent by the first antenna to the second antenna, or the received strength of the signal sent by the second antenna to the first antenna; when the second antenna is sent to the first antenna When the received strength of the signal is received, the beacon end device is required to obtain the receiving strength of the signal sent by the second antenna to the first antenna from the anchor node end device.
The method of claim 3, wherein obtaining a communication signal strength between each of the first antennas and the second antenna of the anchor node device comprises:

A communication signal strength between each of the first antennas and the second antenna is obtained by sequentially communicating with the second antenna by each of the first antennas.
The method according to claim 3 or 4, wherein the first antenna corresponding to the maximum communication signal strength selected from the communication signal strengths between the each of the first antenna and the second antenna is the After the target first antenna, the method further includes:

Detecting a current posture of the beacon end device, and obtaining a detection result;

Determining, according to the detection result, a current polarization direction of each of the first antennas, and determining, according to a polarization direction of the second antenna, a polarization direction of the target first antenna and the second antenna Whether the polarization direction is matched; if yes, performing a process of subsequently controlling the target first antenna to be in a transceiving state; if not, regaining a communication signal between each of the first antenna and the second antenna of the anchor node device Intensity and re-determination of the target first antenna.
The method according to claim 5, wherein a current polarization direction of each of the first antennas is determined according to the detection result, and the target first antenna is determined according to a polarization direction of the second antenna Whether the polarization direction matches the polarization direction of the second antenna, including:

Determining a current polarization direction of each of the first antennas according to the detection result and a setting orientation of each of the first antennas in the beacon end device;

Determining, according to the polarization direction of the second antenna obtained in advance, whether the first antenna having the smallest angle between the current polarization direction and the polarization direction of the second antenna is the target first antenna.
The method according to claim 3 or 4, wherein the first antenna corresponding to the maximum communication signal strength selected from the communication signal strengths between the each of the first antenna and the second antenna is the After the target first antenna, the method further includes:

Determining whether the strength of the communication signal between the target first antenna and the second antenna reaches a threshold, and if so, performing a process of subsequently controlling the target first antenna to be in a transceiving state; If not, an alarm prompt is generated to regain the communication signal strength between each of the first antennas and the second antenna of the anchor node device, and to re-determine the target first antenna.
The method of claim 2, wherein controlling the target first antenna to switch to the transceiving state and controlling the first antenna other than the target first antenna to be in a non-transceive state comprises:

After determining that a complete positioning operation is performed between the beacon end device and the anchor node device, the target first antenna is switched to the transmitting and receiving state, and the first antenna other than the target first antenna is not received or received. status.
An antenna control device is disposed on a beacon end device, where the beacon end device includes at least two first antennas having different polarization directions, and the device includes:

Obtaining a module configured to obtain a communication signal strength between each of the first antenna and the second antenna of the anchor node device;

a determining module, configured to determine a target first antenna from the at least two first antennas according to the communication signal strength; wherein a communication signal between the target first antenna and a second antenna of the anchor node device The intensity satisfies the preset first condition;

And a control module, configured to control the target first antenna to be in a transceiving state, and further communicate with the anchor node device by using the target first antenna.
The apparatus according to claim 9, wherein the control module is configured to determine whether the target first antenna is currently in a transceiving state, and if so, to maintain a transceiving state of the target first antenna; if not, Controlling that the target first antenna switches to a transceiving state, and controlling the first antenna other than the target first antenna to be in a non-transceiving state.
The apparatus according to claim 10, wherein said determining module is configured to select a first one corresponding to a maximum communication signal strength from among communication signal strengths between said first antenna and said second antenna The antenna is the target first antenna;

The communication signal strength between the first antenna and the second antenna is represented by the following signal strength:

The received strength of the signal sent by the first antenna to the second antenna, or the received strength of the signal sent by the second antenna to the first antenna; when the second antenna is sent to the first antenna When the received strength of the signal is received, the beacon end device is required to obtain the receiving strength of the signal sent by the second antenna to the first antenna from the anchor node end device.
The apparatus of claim 11, wherein the obtaining module is configured to obtain the first antenna and the second antenna by sequentially communicating with the second antenna by each of the first antennas. The strength of the communication signal between.
The device of claim 11 or 12, wherein the device further comprises:

a detecting module, configured to: after selecting a first antenna corresponding to a maximum communication signal strength from a communication signal strength between each of the first antennas and the second antenna as the target first antenna, The current posture of the beacon device is detected, and the detection result is obtained;

a first determining module, configured to determine a current polarization direction of each of the first antennas according to the detection result, and determine a polarization direction of the target first antenna according to a polarization direction of the second antenna Whether the polarization direction of the second antenna matches; if yes, notifying the control module to perform a process of subsequently controlling the target first antenna to be in a transceiving state; if not, notifying the obtaining module to regain each first The strength of the communication signal between the antenna and the second antenna of the anchor node device, and notifying the determining module to redetermine the target first antenna.
The apparatus of claim 13, wherein the first determining module is configured to determine each of the first antennas according to the detection result and a setting orientation of each of the first antennas in the beacon end device a current polarization direction; determining, according to the polarization direction of the second antenna obtained in advance, whether the first antenna having the smallest angle between the current polarization direction and the polarization direction of the second antenna is the target An antenna.
The device of claim 11 or 12, wherein the device further comprises:

a second determining module, configured to select, according to a communication signal strength between each of the first antennas and the second antenna, a first antenna corresponding to a maximum communication signal strength as the target After an antenna, determining whether the communication signal strength between the target first antenna and the second antenna reaches a threshold, and if so, notifying the control module to perform a process of subsequently controlling the target first antenna to be in a transceiving state; If not, an alarm prompt is generated, and the obtaining module is notified to regain the communication signal strength between each of the first antennas and the second antenna of the anchor node device, and the determining module is notified to re-determine the target first antenna.
The device of claim 10, wherein

The control module is configured to control the target first antenna to switch to the receiving and receiving state and control the target first antenna after determining a complete positioning operation between the beacon end device and the anchor node device The first antenna is in a non-transceive state.
A computer storage medium comprising a set of instructions that, when executed, cause at least one processor to perform operations comprising:

Obtaining a communication signal strength between each of the first antennas and a second antenna of the anchor node device, and determining a target first antenna from the at least two first antennas according to the communication signal strength; wherein the target The communication signal strength between the first antenna and the second antenna of the anchor node device meets a preset first condition;

Controlling that the target first antenna is in a transceiving state, and communicating with the anchor node device through the target first antenna.