WO2018053864A1

WO2018053864A1 - Communication quality detection method, apparatus and device

Info

Publication number: WO2018053864A1
Application number: PCT/CN2016/100193
Authority: WO
Inventors: 饶雄斌; 王宇; 范伟; 王乃博; 高建南; 戴劲
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2016-09-26
Filing date: 2016-09-26
Publication date: 2018-03-29
Also published as: CN107690823A; CN107690823B

Abstract

A communication quality detection method, apparatus and device. The method comprises: after a communication quality detection apparatus detects a communication quality parameter between an aerial vehicle and a control terminal, the communication quality detection apparatus can determine a cause for a communication quality change occurring between the aerial vehicle and the control terminal according to a fact that whether the communication quality parameter satisfies a preset threshold condition, and generate indication information comprising the cause, so that the communication quality between the aerial vehicle and the control terminal can accurately detected. Further, by outputting the indication information, a user can be helped to adjust operations, which helps to improve communication performance to some extent, and improve flight experience of the user.

Description

Communication quality detecting method, device and device

The disclosure of this patent document contains material that is subject to copyright protection. This copyright is the property of the copyright holder. The copyright owner has no objection to the reproduction of the patent document or the patent disclosure in the official records and files of the Patent and Trademark Office.

Technical field

The present application relates to the field of UAV communication technologies, and in particular, to a communication quality detection method, apparatus and device.

Background technique

In the UAV communication system, the communication between the aircraft and the control terminal is often interfered by various factors, which may result in a decrease in communication quality. For example, if the user is interfered in the operation terminal during operation, it may cause If the picture is jammed, blurred, etc., if the aircraft side is disturbed, it may cause the remote control to malfunction. At present, the UAV communication system can only detect the deterioration of the communication quality between the aircraft and the control terminal, and prompt the user. For users (especially those with less experience in aircraft operations), there may be problems with how to improve the communication quality after receiving the prompt, which will reduce the communication performance between the aircraft and the control terminal. It can be seen that the existing UAV communication system is not accurate enough to detect the communication quality, and thus cannot effectively improve the communication performance between the aircraft and the control terminal.

Summary of the invention

The embodiment of the present application discloses a communication quality detecting method, device and device, which can accurately detect the communication quality between the aircraft and the control terminal, thereby effectively helping to improve the communication performance.

A first aspect of the embodiments of the present application discloses a communication quality detecting method, where the method includes:

Detecting communication quality parameters between the aircraft and the control terminal;

Determining whether the communication quality parameter meets a preset threshold condition;

Determining, according to the determination result, a cause of a change in communication quality between the aircraft and the control terminal, and generating indication information, wherein the indication information includes the cause.

A second aspect of the embodiments of the present application discloses a communication quality detecting apparatus, where the apparatus includes:

a detecting module, configured to detect a communication quality parameter between the aircraft and the control terminal;

a determining module, configured to determine whether the communication quality parameter meets a preset threshold condition;

a determining module, configured to determine a cause of a change in communication quality between the aircraft and the control terminal according to the determination result;

And generating a module, configured to generate indication information, where the indication information includes the reason.

A third aspect of the embodiments of the present application discloses a communication quality detecting device, where the device includes:

a processor, configured to detect a communication quality parameter between the aircraft and the control terminal, determine whether the communication quality parameter meets a preset threshold condition, and determine, according to the determination result, a change in communication quality between the aircraft and the control terminal And cause indication information, the indication information including the reason.

In the embodiment of the present application, after detecting the communication quality parameter between the aircraft and the control terminal, the communication quality detecting device may determine the reason for the change of the communication quality between the aircraft and the control terminal according to whether the communication quality parameter meets the preset threshold condition. And generating indication information including the reason, so that accurate communication quality between the aircraft and the control terminal can be accurately detected. Further, outputting the indication information can help the user adjust the operation, and can help improve the communication performance to a certain extent and improve the user's flight experience.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings to be used in the embodiments will be briefly described below. Obviously, the drawings in the following description are only some embodiments of the present application, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic flow chart of a communication quality detecting method disclosed in this embodiment;

2 is a schematic flowchart diagram of another communication quality detecting method disclosed in this embodiment;

3 is a schematic flow chart of still another communication quality detecting method disclosed in this embodiment;

4 is a schematic structural diagram of a communication quality detecting apparatus disclosed in this embodiment;

FIG. 5 is a schematic structural diagram of another communication quality detecting apparatus disclosed in this embodiment; FIG.

FIG. 6 is a schematic structural diagram of a communication quality detecting apparatus disclosed in this embodiment.

detailed description

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

The embodiment of the present application discloses a communication quality detecting method, device and device, which can accurately detect the communication quality between the aircraft and the control terminal, thereby effectively helping to improve the communication performance. The details are described below separately.

Please refer to FIG. 1 , which is a schematic flowchart of a communication quality detecting method disclosed in this embodiment. The method shown in FIG. 1 can be applied to a communication quality detecting device, and the device can be applied to a control terminal, an aircraft, or a third-party device. The control terminal can include, but is not limited to, a remote controller, video glasses, a smart phone, and a tablet computer. Wait. As shown in FIG. 1, the method may include the following steps:

101. Detect a communication quality parameter between the aircraft and the control terminal.

In this embodiment, when the aircraft communicates with the control terminal, the communication quality detecting device can detect the communication quality parameter between the aircraft and the control terminal, that is, the aircraft and the control terminal can each detect their communication quality parameters. The communication quality parameter includes a channel parameter of the communication channel and a transmission measurement parameter, and specifically includes a communication quality parameter on the aircraft side or a communication quality parameter on the control terminal side. The channel parameters may include a signal-to-noise ratio, a noise floor, a signal receiving strength, a channel round-trip delay, and the like. The transmission measurement parameters may include a frame transmission frame number, a code stream rate, and an uplink instruction error packet number, which are not limited in this embodiment.

Optionally, the communication quality detecting device may detect the communication quality parameter between the aircraft and the control terminal according to the preset time interval, where the preset time interval may be 30 seconds, 1 minute, 2 minutes, etc., which is not limited in this embodiment. .

102. Determine whether the communication quality parameter meets a preset threshold condition.

In this embodiment, the preset threshold condition refers to a threshold corresponding to each of the communication quality parameters. After obtaining the communication quality parameter, the communication quality detecting device may analyze the communication quality parameter based on the preset threshold condition, that is, determine whether the communication quality parameter satisfies a preset threshold condition, and if satisfied, the aircraft is described The communication quality with the control terminal is normal, and if it is not satisfied, the communication quality between the aircraft and the control terminal is deteriorated.

103. Determine a cause of a change in communication quality between the aircraft and the control terminal according to the judgment result.

In this embodiment, when the communication quality parameter satisfies the preset threshold condition, the communication quality detecting apparatus may determine that the communication quality with the aircraft is normal; when the communication quality parameter does not satisfy the preset threshold condition, the communication quality detecting apparatus may determine the control. The quality of communication between the terminal and the aircraft deteriorates.

Further, the communication quality detecting apparatus may further determine a reason why the communication quality between the control terminal and the aircraft deteriorates due to the communication quality parameter that does not satisfy the preset threshold condition.

104. Generate indication information including the reason.

In this embodiment, after determining the cause of the change in the communication quality between the control terminal and the aircraft according to the determination result, the communication quality detecting apparatus may further generate the indication information including the cause. If the communication quality parameter meets the preset threshold condition, indicating that the communication is normal, the indication information may further include information indicating that the communication quality is normal.

If the communication quality parameter does not meet the preset threshold condition, the communication quality is deteriorated, and the reason may be the reason that the communication quality is deteriorated, such as signal interference, occlusion or unreasonable antenna placement, and the user selecting the channel is unreasonable. Etc., it can also be a parameter that causes the communication quality to deteriorate. For example, if the signal-to-noise ratio does not exceed the signal-to-noise ratio threshold, the noise floor exceeds the noise floor threshold, and the signal reception strength does not exceed the signal reception strength threshold, the number of frame transmission frames exceeds the image transmission. The number of the frame loss threshold, the code stream rate is less than the code rate threshold, the number of uplink instruction error packets exceeds the threshold of the number of uplink instruction error packets, and the like, which are not limited in this embodiment.

Optionally, after generating the indication information, the communication quality detecting apparatus may further output the indication information.

Specifically, the communication quality detecting device outputs a reason for the deterioration of the communication quality to prompt the user, so that the user can clearly know the cause of the deterioration of the communication quality, and can alleviate the discomfort caused by the deterioration of the flight experience. Further, the user can further adjust the operation according to the reason of the output, and can help improve the communication performance to a certain extent.

In this embodiment, the specific manner in which the communication quality detecting apparatus determines whether the communication quality parameter meets the preset threshold condition may include the following:

Mode 1: Channel parameters include noise floor and signal to noise ratio.

The communication quality detecting device determines whether the noise floor is smaller than the first noise floor threshold, whether the signal to noise ratio is greater than the signal to noise ratio threshold, and whether the transmission measurement parameter satisfies the transmission measurement parameter threshold condition; If the noise is greater than or equal to the first noise floor threshold, the signal to noise ratio is less than or equal to the signal to noise ratio threshold, and the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition, the communication quality detecting device can determine the communication quality parameter. The preset threshold condition is not met.

Further, when the foregoing determination result is not all, the communication quality detecting apparatus determines that the communication quality parameter satisfies the preset threshold condition.

It should be noted that the first noise threshold, the signal-to-noise ratio threshold, and the transmission measurement parameter threshold are all preset constant thresholds, which are not limited in this embodiment. When the transmission measurement parameter is the frame transmission frame number and the code stream rate, the above noise floor and signal to noise ratio are used to control the bottom noise and signal to noise ratio of the terminal side, and the first noise floor threshold and the signal to noise ratio threshold are both control terminal sides. Threshold. When the transmission measurement parameter is the number of uplink instruction error packets, the above noise floor and signal to noise ratio adopt the noise floor and signal to noise ratio of the aircraft side. The first noise floor threshold and the signal to noise ratio threshold are both the aircraft side threshold and the aircraft side. The threshold of the control terminal may be the same as or different from the threshold of the control terminal.

In this embodiment, when the determination result of the above parameters is no, it may be initially determined that there is signal interference on the control terminal side or the aircraft side. Further, the reason may be that there is a cause of signal interference on the terminal side or the aircraft side. Specifically, if the communication quality parameter adopts the communication quality parameter on the aircraft side, it indicates that there is signal interference on the aircraft side; if the communication quality parameter adopts the communication quality parameter on the control terminal side, it indicates that there is signal interference on the control terminal side.

Mode 2: Channel parameters include signal reception strength and signal to noise ratio.

The communication quality detecting device determines whether the signal receiving strength is greater than a signal receiving intensity threshold, whether the signal to noise ratio is greater than a signal to noise ratio threshold, and whether the transmission measurement parameter satisfies a transmission measurement parameter threshold condition; if the above determination result is no, that is, the signal receiving strength is greater than Or equal to the signal receiving strength threshold, the signal to noise ratio is less than or equal to the signal to noise ratio threshold, and the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition, and the communication quality detecting device may determine that the communication quality parameter does not satisfy the preset threshold condition.

It should be noted that the SNR threshold and the transmission measurement parameter threshold are all preset constant thresholds, which are not limited in this embodiment. When the transmission measurement parameter is the frame transmission frame number and the code stream rate, the signal reception strength and the signal-to-noise ratio of the signal are controlled by the control terminal side, and the signal reception strength threshold and the signal-to-noise ratio threshold are both control terminals. Side threshold. When the transmission measurement parameter is the number of uplink instruction error packets When the signal receiving strength and the signal-to-noise ratio are both the signal receiving intensity and the signal-to-noise ratio of the aircraft side, the signal receiving intensity threshold and the signal-to-noise ratio threshold are both the threshold of the aircraft side, and the threshold of the aircraft side and the threshold of the control terminal side can be The same or different, the embodiment is not limited.

In this embodiment, when the determination result of the above parameters is no, it may be initially determined that there is occlusion between the control terminal and the aircraft, or the antenna of the control terminal is unreasonable. Further, the reason may be that there is occlusion between the control terminal and the aircraft, or the antenna of the control terminal is unreasonable.

Further, the signal reception strength threshold can be calculated according to the channel round trip delay. The signal reception strength threshold on the control terminal side is represented by RSRP _th1 , specifically: RSRP _th1 = RSRP _th1 (RRT) - ΔRSRP. Where ΔRSRP is a preset constant value, RSRP _th1 (RRT) is the received signal power of the control terminal in vacuum, and the expression is specifically: RSRP _th1 (RRT)=P _uav-tx -{32.5+20*log(f _Uav-tx )+20*log(D _tx-rx (RTT))}. In the above expression, _Puav-tx represents the radiated power of the aircraft, and f _uav-tx represents the center frequency of the downlink transmit band (in MHz). For example, the 2.4G band f _uav-tx is 2450 MHz, D _tx-rx ( RTT) represents the distance between the aircraft and the control terminal, D _{tx - rx} (RTT) = c _v * RTT / 2. Where c _v represents the speed of light in the vacuum and RTT represents the round trip delay of the channel. The signal reception strength threshold on the aircraft side is represented by RSRP _th2 , specifically: RSRP _th2 = RSRP _th2 (RRT) - ΔRSRP. Among them, RSRP _th2 (RRT) represents the received signal power of the aircraft in vacuum, the expression is: RSRP _th2 (RRT) = P _rc-tx - {32.5 + 20 * log (f _rc-tx ) + 20 * log (D _{tx -rx} (RTT))}. In the above expression, P _rc-tx represents the radiation power of the control terminal, and f _rc-tx represents the center frequency (in MHz) of the uplink transmission band.

It should be noted that, in the foregoing manners 1 and 2, the transmission measurement parameter may be a frame transmission frame number and a code stream rate, or may be an uplink instruction error packet number.

When the transmission measurement parameter is the frame transmission frame number and the code stream rate, the specific manner in which the communication quality detecting device determines whether the transmission measurement parameter satisfies the transmission measurement parameter threshold condition may be:

The communication quality detecting device determines whether the number of frames lost in the graph is less than the threshold of the number of frames lost, and whether the rate of the stream is greater than the threshold of the stream rate. If the number of frames lost is greater than or equal to the threshold of the number of frames lost, or the stream The rate is less than or equal to the code rate threshold, or the above judgment result is no, and the communication quality detecting means determines that the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition.

The threshold of the frame number of the frame and the threshold of the code rate are preset constant thresholds, which are not limited in this embodiment.

When the transmission measurement parameter is the number of uplink instruction error packets, the specific manner in which the communication quality detecting device determines whether the transmission measurement parameter satisfies the transmission measurement parameter threshold condition may be:

The communication quality detecting device determines whether the number of uplink instruction error packets is less than the uplink instruction error packet threshold. If the determination result is negative, the communication quality detecting device determines that the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition.

The threshold of the number of the uplink instruction error packets is a preset constant threshold, which is not limited in this embodiment.

Mode 3: The channel parameters include bottom noise, and the transmission measurement parameters include a frame transmission frame number and a code stream rate.

The communication quality detecting device may first detect whether the communication channel between the current aircraft and the control terminal is a user-selected channel, and if so, further detect the communication quality parameter of the user-selected channel. The communication quality parameters include channel parameters and transmission measurement parameters of the user-selected channel. Then, the specific manner in which the communication quality detecting device determines whether the communication quality parameter meets the preset threshold condition may be:

Determining whether the bottom noise of the user-selected channel is less than the second noise floor threshold, whether the number of frames lost is less than the threshold of the frame loss frame, and whether the code stream rate is greater than the code rate threshold; if the bottom noise is greater than or equal to the second noise floor The determination result of the threshold, the number of frame transmission frames, and the code stream rate is no, and the communication quality detecting device may determine that the communication quality parameter does not satisfy the preset threshold condition.

In this embodiment, when the determination result of the foregoing parameters is no, the user's self-selected channel may be initially determined to be unreasonable. Further, the reason may be an unreasonable reason for the user to select a channel. When the communication channel between the aircraft and the control terminal is the user-selected channel, the communication quality parameter is detected, and the detection of the communication quality parameter can be avoided frequently, so that the power consumption can be reduced to some extent.

Optionally, the communication quality detecting device detects the communication quality parameter between the aircraft and the control terminal, and may further include:

The noise floor of each communication channel between the aircraft and the control terminal is obtained, and the minimum noise floor is determined from the noise floor of each communication channel. Then, before the communication quality detecting device determines whether the bottom noise of the user-selected channel is less than the second noise floor threshold, the second noise floor threshold can be calculated according to the minimum noise floor.

Wherein, the second noise floor threshold is represented by N _{rc — th} , N _{rc — th} = N _{rc — min} + ΔN ₀ . Wherein, ΔN ₀ is a preset _constant, N rc_min minimum noise _{_{floor, N rc_min = min {N rc}} [1], ... N rc [k]}, k is a constant.

Further, the communication quality detecting device can simultaneously detect all communication quality parameters, and then The determining operation of the above three modes is performed separately, so that the cause of the deterioration of the plurality of communication qualities can be determined, and only one cause of the deterioration of the communication quality can be detected at a time, which is not limited in this embodiment.

It should be noted that the detection of the communication quality and the determination of the communication quality change when the communication quality changes may specifically be that the control terminal detects the communication quality parameter of the control terminal side, analyzes it, and determines the control terminal side when the communication quality changes. The reason for the change of communication quality; it may also be that the aircraft detects the communication quality parameter on the aircraft side, analyzes it, determines the cause of the change of the communication quality on the aircraft side when the communication quality changes, and may also be the communication quality parameter that the aircraft will detect. Sending to the control terminal, the control terminal analyzes the communication quality parameter, and determines the cause of the communication quality change when the communication quality changes; or the control terminal and the aircraft respectively send the respective detected communication quality parameters to the third-party device, such as The server analyzes the communication quality parameters by the third-party device, and determines the cause of the change of the communication quality parameter when the communication quality changes. This embodiment is not limited.

It can be seen that, in the method described in FIG. 1, the communication quality detecting apparatus can determine the communication between the aircraft and the control terminal according to whether the communication quality parameter satisfies the preset threshold condition after detecting the communication quality parameter between the aircraft and the control terminal. The cause of the quality change, and the indication information including the cause is generated, so that the quality of communication between the aircraft and the control terminal can be accurately detected. Further, outputting the indication information can help the user adjust the operation, and can help improve the communication performance to a certain extent and improve the user's flight experience.

Referring to FIG. 2, it is a schematic flowchart of another communication quality detecting method disclosed in this embodiment. The method may be applied to a communication quality detecting device, and the device may be applied to a control terminal or a third-party device, such as a server, etc., which is not limited in this embodiment. As shown in FIG. 2, the method may include the following steps:

201. Detect whether a communication channel between the current aircraft and the control terminal is a user-selected channel.

202. Detect a communication quality parameter of a user-selected channel when the communication channel is a user-selected channel.

203. Determine whether the bottom noise of the control terminal side in the communication quality parameter is less than a second noise floor threshold, whether the frame transmission frame number is smaller than a picture transmission frame threshold, and whether the code stream rate is greater than a code stream rate threshold.

204. The frame transmission frame number is greater than or equal to the picture transmission frame number threshold, and/or, the code stream rate is less than or equal to the code stream rate threshold, and the communication channel is a user-selected channel, and the control terminal side bottom noise is greater than or equal to When the second noise floor threshold is determined, the cause of deterioration of communication quality and deterioration of communication quality is determined, and the generation includes the original The indication information, wherein the reason includes the reason why the user selects the channel is unreasonable.

Further, the communication quality detecting device may further output indication information that the user selects an unreasonable channel.

205. When the number of frames lost in the graph is greater than or equal to the threshold of the number of frames lost, and/or, if the code rate is less than or equal to the threshold of the code rate, but the bottom noise of the control terminal is less than the second noise threshold, the communication is determined. Whether the signal receiving strength on the control terminal side in the quality parameter is greater than the signal receiving strength threshold on the control terminal side, and whether the signal to noise ratio on the control terminal side is greater than the signal to noise ratio threshold on the control terminal side.

On the basis of step 203, if the communication channel is not the user-selected channel, the bottom noise of the control terminal side is smaller than the second noise floor threshold, but the number of frame loss frames is greater than or equal to the threshold of the number of frame loss frames, and/or the code. When the flow rate is less than or equal to the code rate threshold, the communication quality detecting device further analyzes the communication quality parameter on the control terminal side.

206. When the foregoing determination result is no, determine a cause of deterioration of communication quality and deterioration of communication quality, and generate indication information including the cause, where the reason includes unreasonable antenna placement or between the control terminal and the aircraft. There is a reason for occlusion.

Further, the communication quality detecting device may also output indication information that the antenna is placed unreasonably or that there is an occlusion reason between the control terminal and the aircraft.

207. When the signal receiving strength on the control terminal side is greater than the signal receiving strength threshold on the control terminal side, and the signal to noise ratio on the control terminal side is less than or equal to the signal to noise ratio threshold on the control terminal side, determine the control terminal side in the communication quality parameter. Whether the noise floor is smaller than the first noise floor threshold on the control terminal side.

On the basis of step 205, if the signal reception strength on the control terminal side is greater than the signal reception strength threshold on the control terminal side, and the signal to noise ratio on the control terminal side is less than or equal to the signal to noise ratio threshold on the control terminal side, the communication quality detecting device The communication quality parameters on the control terminal side will be further analyzed.

208. When the foregoing determination result is negative, determine a cause of deterioration of the communication quality and a deterioration of the communication quality, and generate indication information including the cause, where the cause includes controlling the cause of the signal interference on the terminal side.

Further, the communication quality detecting device may further output indication information for controlling the cause of the signal interference on the terminal side.

It should be noted that the control terminal side can perform detection according to a preset time interval, and only detects one cause of deterioration of the communication quality at a time, and prompts the reason to the user, so that the user can adjust according to the prompt. operating.

It can be seen that, in the method described in FIG. 2, when the communication channel between the aircraft and the control terminal is a user-selected channel, the communication quality detecting device can detect whether the user-selected channel is reasonable according to the communication quality parameter on the control terminal side, and if it is unreasonable, The corresponding prompt is output to facilitate the user to select a reasonable communication channel according to the prompt; if the user-selected channel is reasonable, it is detected whether there is occlusion between the control terminal and the aircraft or whether the antenna is placed properly, if there is occlusion or the antenna is placed unreasonably The corresponding prompt is output to facilitate the user to adjust the antenna according to the prompt; if the antenna is placed reasonably and there is no occlusion, further detecting whether there is signal interference on the control terminal side, if there is signal interference, outputting corresponding prompts to facilitate the user to understand the communication quality. The specific cause of the variation, if there is no signal interference, indicates that the current communication quality is normal. The implementation of the embodiment of the present application can achieve accurate detection of communication quality. If the communication quality is deteriorated, the specific reason can be determined, and the user is prompted, and the user can adjust the operation according to the prompt to obtain a better flight experience.

Please refer to FIG. 3 , which is a schematic flowchart of still another communication quality detecting method disclosed in this embodiment. The method may be applied to a communication quality detecting device, and the device may be applied to an aircraft or a third-party device, such as a server, etc., which is not limited in this embodiment. As shown in FIG. 3, the method may include the following steps:

301. Detect a communication quality parameter between the aircraft and the control terminal.

302. Determine whether the signal receiving strength of the aircraft side in the communication quality parameter is greater than a signal receiving strength threshold of the aircraft side, whether the signal to noise ratio of the aircraft side is greater than a signal to noise ratio threshold of the aircraft side, and whether the uplink instruction error packet number is smaller than an uplink instruction error. The number of packets is limited.

303. When the foregoing determination result is no, determine a cause of deterioration of communication quality and deterioration of communication quality, and generate indication information including the cause, where the reason includes unreasonable antenna placement or between the control terminal and the aircraft. There is a reason for occlusion.

304. The signal-to-noise ratio on the aircraft side is less than or equal to the signal-to-noise ratio threshold on the aircraft side, and the number of uplink instruction error packets is greater than or equal to the uplink instruction error packet threshold, but the signal reception strength on the aircraft side is greater than the signal reception strength gate on the aircraft side. When the time limit is determined, it is judged whether the noise floor of the aircraft side in the communication quality parameter is less than The first noise floor threshold on the aircraft side.

On the basis of step 302, if the signal-to-noise ratio of the aircraft side is less than or equal to the signal-to-noise ratio threshold of the aircraft side, the number of uplink instruction error packets is greater than or equal to the uplink instruction error packet threshold, but the signal receiving strength of the aircraft side is greater than the aircraft side. The signal reception intensity threshold, the communication quality detecting device further analyzes the communication quality parameters on the aircraft side.

305. When the determination result is no, determine a cause of deterioration of the communication quality and a deterioration of the communication quality, and generate indication information including the cause, where the cause includes a signal interference on the aircraft side.

Further, the communication quality detecting device may further output indication information for controlling the cause of signal interference on the aircraft side.

It should be noted that the aircraft side can perform detection according to a preset time interval, and only detect one cause of deterioration of communication quality at a time, and send the reason to the control terminal or a third-party device, and output the communication by the control terminal or the third-party device. A prompt for the cause of poor quality is given to the user.

It can be seen that, in the method described in FIG. 3, the communication quality detecting device can first detect whether there is occlusion between the control terminal and the aircraft or whether the antenna is placed properly according to the communication quality parameter on the aircraft side, and if there is occlusion or antenna placement, Reasonable, output corresponding prompts, so that the user can adjust the antenna according to the prompt; if the antenna is placed reasonably and there is no occlusion, further detect whether there is signal interference on the aircraft side. If there is signal interference, output corresponding prompts to facilitate the user to understand the communication quality. The specific cause of the variation, if there is no signal interference, indicates that the current communication quality is normal. The implementation of the embodiment of the present application can achieve accurate detection of communication quality. If the communication quality is deteriorated, the specific reason can be determined, and the user is prompted, and the user can adjust the operation according to the prompt to obtain a better flight experience.

Please refer to FIG. 4 , which is a schematic structural diagram of a communication quality detecting apparatus disclosed in this embodiment. The apparatus shown in FIG. 4 can be used to perform the method flow steps shown in FIG. 1 to FIG. 3, and the apparatus can be applied to a control terminal, an aircraft, or a third-party device. As shown in FIG. 4, the apparatus may include:

The detecting module 401 is configured to detect a communication quality parameter between the aircraft and the control terminal.

The determining module 402 is configured to determine whether the communication quality parameter meets a preset threshold condition.

The determining module 403 is configured to determine, according to the determination result of the determining module 402, the reason for the change in communication quality between the aircraft and the control terminal.

The generating module 404 is configured to generate indication information, where the indication information includes the reason.

The communication quality parameter may include a channel parameter and a transmission measurement parameter, and the channel parameter may include controlling a signal to noise ratio, a signal reception strength, a noise floor, and a channel round-trip delay of the terminal side and the aircraft side, and the transmission measurement parameter may include an uplink instruction error. At least one of a packet number, a frame transmission frame number, and a code stream rate.

Optionally, the specific manner in which the detecting module 401 detects the communication quality parameter between the aircraft and the control terminal may be:

The communication quality parameter between the aircraft and the control terminal is detected according to a preset time interval.

Optionally, the communication quality detecting apparatus may further include an output module 405, configured to output the indication information generated by the generating module 404.

Referring to FIG. 5, it is a schematic structural diagram of another communication quality detecting apparatus disclosed in this embodiment. Among them, the device shown in Fig. 5 is optimized based on the device shown in Fig. 4. As shown in FIG. 5, the determining module 402 may include a determining unit 4021, a determining unit 4022, and a calculating unit 4023. The specific manner in which the determining module 402 determines whether the communication quality parameter meets the preset threshold condition may include the following:

Mode 1: Channel parameters include noise floor and signal to noise ratio.

The determining unit 4021 is configured to determine whether the noise floor is smaller than the first noise floor threshold, whether the signal to noise ratio is greater than a signal to noise ratio threshold, and whether the transmission measurement parameter satisfies the transmission measurement parameter threshold condition.

The determining unit 4022 is configured to determine, when the determination result of the determining unit 4021 is negative, that the communication quality parameter does not satisfy the preset threshold condition.

Wherein, when the transmission measurement parameter is the frame transmission frame number and the code stream rate, the bottom noise and the signal to noise ratio are used to control the bottom noise and the signal to noise ratio of the terminal side, and the first noise floor threshold and the signal to noise ratio threshold are both controlled. Threshold on the terminal side. When the transmission measurement parameter is the number of uplink instruction error packets, the above noise floor and signal to noise ratio adopt the noise floor and signal to noise ratio of the aircraft side. The first noise floor threshold and the signal to noise ratio threshold are both the aircraft side threshold and the aircraft side. The threshold of the control terminal may be the same as or different from the threshold of the control terminal.

The determining unit 4021 is configured to determine whether the signal receiving strength is greater than a signal receiving strength threshold, whether the signal to noise ratio is greater than a signal to noise ratio threshold, and whether the transmission measurement parameter satisfies the transmission measurement parameter threshold bar. Pieces.

Further, the channel parameters may also include a channel round trip delay. Then, the determining unit 4021 determines, according to whether the signal receiving strength is greater than the signal receiving strength threshold, whether the signal to noise ratio is greater than the signal to noise ratio threshold, and whether the transmission measurement parameter satisfies the transmission measurement parameter threshold condition, the calculating unit 4023 is configured to use the channel round trip delay. Calculate the signal reception strength threshold.

Wherein, when the transmission measurement parameter is the frame transmission frame number and the code stream rate, the signal receiving strength and the signal-to-noise ratio of the signal are controlled by the terminal receiving signal strength and the signal to noise ratio, and the signal receiving intensity threshold and the signal to noise ratio threshold are both Control the threshold on the terminal side. When the transmission measurement parameter is the number of uplink instruction error packets, the above-mentioned signal reception strength and signal-to-noise ratio adopt the signal receiving strength and signal-to-noise ratio of the aircraft side, and the signal receiving intensity threshold and the signal-to-noise ratio threshold are both the thresholds of the aircraft side, and the aircraft The threshold of the side may be the same as or different from the threshold of the control terminal. This embodiment is not limited.

When the transmission measurement parameter is the frame transmission frame number and the code stream rate, the determining unit 4021 determines whether the transmission measurement parameter satisfies the transmission measurement parameter threshold condition, and the specific manner may be:

Determine whether the number of frames lost in the graph is less than the threshold of the number of dropped frames, and whether the code stream rate is greater than the code rate threshold. If the number of frames lost is greater than or equal to the threshold of the number of dropped frames, or the code rate is less than or equal to The code rate threshold, or the above judgment result is no, and it is determined that the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition.

When the transmission measurement parameter is the number of uplink instruction error packets, the specific manner in which the determining unit 4021 determines whether the transmission measurement parameter satisfies the transmission measurement parameter threshold condition may be:

It is determined whether the number of uplink instruction error packets is less than the threshold of the uplink instruction error packet number. If the determination result is no, it is determined that the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition.

The detecting module 401 is further configured to detect whether a communication channel between the current aircraft and the control terminal is a user-selected channel, and if yes, further detect a communication quality parameter of the user-selected channel. The communication quality parameters include channel parameters and transmission measurement parameters of the user-selected channel. The determining module 402 determines the pass The specific method of whether the quality parameter meets the preset threshold condition may be:

The determining unit 4021 is configured to determine whether the bottom noise of the user-selected channel is less than the second noise floor threshold, whether the frame transmission frame number is smaller than the picture transmission frame number threshold, and whether the code stream rate is greater than the code stream rate threshold.

The determining unit 4022 is configured to determine, when the determining unit 4021 determines that the bottom noise is greater than or equal to the second noise floor threshold, and determines that the communication quality parameter is not satisfied when the determination result of the at least one of the frame loss frame number and the code stream rate is negative. Preset threshold conditions.

Optionally, the specific manner of the detection module 401 detecting the communication quality parameter between the aircraft and the control terminal may further include:

The noise floor of each communication channel between the aircraft and the control terminal is obtained, and the minimum noise floor is determined from the noise floor of each communication channel.

The calculating unit 4023 is configured to calculate a second bottom noise threshold according to the minimum noise determined by the detecting module 401 before the determining unit 4021 determines whether the bottom noise of the user-selected channel is less than the second noise floor threshold.

Further, when the detecting module 401 detects that the communication channel between the current aircraft and the control terminal is a user-selected channel, and the determining module 402 determines that the communication quality parameter does not satisfy the preset threshold condition, the determining module 403 determines that the communication quality is deteriorated, including: The reason why the user chooses the channel is unreasonable.

It should be noted that the foregoing three manners of determining whether the communication quality parameter meets the preset threshold condition may be performed at the same time, or only one type may be executed at a time, which is not limited in this embodiment.

Further, detecting the communication quality and determining the reason for the change of the communication quality when the communication quality changes, specifically, the control terminal detects the communication quality parameter of the control terminal side, analyzes it, and determines the communication quality of the control terminal side when the communication quality changes. The reason for the change may also be that the aircraft detects the communication quality parameter on the aircraft side and analyzes it, determines the cause of the communication quality change on the aircraft side when the communication quality changes; or the aircraft transmits the detected communication quality parameter to the aircraft The control terminal analyzes the communication quality parameter by the control terminal, determines the cause of the communication quality change when the communication quality changes, and may also send the respective detected communication quality parameter to the third-party device, such as a server, by the control terminal and the aircraft respectively. The third-party device analyzes the communication quality parameter, and determines the cause of the change of the communication quality parameter when the communication quality changes. This embodiment is not limited.

In the fourth method, the determining module 402 may further determine, according to the sequence, whether the communication quality parameter on the control terminal side meets the preset threshold condition. The specific way can be:

First, it is determined whether the channel is a user-selected channel, and whether the noise floor of the control terminal side is smaller than the second noise floor. The threshold, the transmission measurement parameter (at least one of the number of lost frames and the code stream rate) satisfies the condition of the transmission measurement parameter threshold, and the specific manner is the implementation form of the third mode.

When the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition, the communication channel is not the user-selected channel, or the bottom noise of the control terminal side is less than the second noise floor threshold, the determining unit 4021 is further configured to determine the signal on the control terminal side. Whether the receiving strength is greater than a signal receiving strength threshold on the control terminal side, and whether the signal to noise ratio on the control terminal side is greater than a signal to noise ratio threshold on the control terminal side.

The determining unit 4022 is further configured to: when the determining result of the determining unit 4021 is negative, determine that the communication quality parameter does not satisfy the preset threshold condition.

Therefore, the determination module 403 determines that the communication quality is degraded due to unreasonable antenna placement or the presence of occlusion between the control terminal and the aircraft.

On the basis of the fourth method, the determining unit 4021 is further configured to: the signal receiving strength on the control terminal side is greater than the signal receiving strength threshold on the control terminal side, and the signal to noise ratio on the control terminal side is less than or equal to the control terminal side. When the SNR threshold is used, it is determined whether the noise floor of the control terminal side in the communication quality parameter is smaller than the first noise floor threshold of the control terminal side.

Therefore, the determination module 403 determines that the communication quality is degraded because the control terminal has a cause of signal interference.

In the sixth manner, the determining module 402 may further determine, in order, whether the communication quality parameter on the aircraft side meets the preset threshold condition. The specific way can be:

Firstly, it is judged whether the communication quality parameters (signal-to-noise ratio, signal reception strength, and uplink instruction error packet number) on the aircraft side satisfy the preset threshold condition, and the specific manner is the implementation form of the second mode.

When the foregoing communication quality parameter does not satisfy the preset threshold condition, the determining module 403 determines that the communication quality is deteriorated, including the reason that the antenna is placed unreasonably or that there is occlusion between the control terminal and the aircraft.

Further, in the foregoing communication quality parameter, the uplink instruction error packet number is greater than or equal to the uplink instruction error packet threshold, the aircraft side signal to noise ratio is less than or equal to the aircraft side signal to noise ratio threshold, and the aircraft side signal reception When the intensity is greater than the signal receiving intensity threshold on the aircraft side, the determining unit 4021 is further configured to determine whether the noise floor on the aircraft side is smaller than the first noise floor threshold on the aircraft side.

The determining unit 4022 is further configured to determine the communication quality when the determination result of the determining unit 4021 is NO. The quantity parameter does not meet the preset threshold condition.

Therefore, the determination module 403 determines that the communication quality is degraded because of the presence of signal interference on the aircraft side.

Optionally, when the determining module 402 determines that the communication quality parameter meets the preset threshold condition, the indication information generated by the generating module 404 includes information for prompting that the communication quality is normal.

It can be seen that, in the communication quality detecting apparatus described in FIG. 4 and FIG. 5, after detecting the communication quality parameter between the aircraft and the control terminal, the communication quality detecting means can determine the aircraft and whether the communication quality parameter satisfies the preset threshold condition. The cause of the change in the communication quality between the terminals is controlled, and the indication information including the cause is generated, so that the quality of communication between the aircraft and the control terminal can be accurately detected. Further, outputting the indication information can help the user adjust the operation, and can help improve the communication performance to a certain extent and improve the user's flight experience.

Please refer to FIG. 6. FIG. 6 is a schematic structural diagram of a communication quality detecting apparatus according to this embodiment. As shown in FIG. 6, the communication quality detecting apparatus 600 may include at least one processor 601 such as a CPU, a communication device 602, a memory 603, an input and output device 604, and at least one communication bus 605, and the memory 603 may be a high speed RAM memory. It may also be a non-volatile memory, such as at least one disk storage. Alternatively, the memory 603 may also be at least one storage device located away from the aforementioned processor 601. among them:

Communication bus 605 is used to implement connection communication between these components.

The communication device 602 is used to communicate with other devices, such as performing image transmission, transmitting and receiving commands, and the like.

A set of program codes is stored in the memory 603, and the processor 601, the communication device 602, and the input and output device 604 are used to call the program code stored in the memory 603 for performing the following operations:

The processor 601 is configured to detect a communication quality parameter between the aircraft and the control terminal, determine whether the communication quality parameter meets a preset threshold condition, and determine a cause of a change in communication quality between the aircraft and the control terminal according to the determination result, and generate Instructions. Wherein, the indication information includes the reason.

Optionally, the processor 601 detects a specific party of the communication quality parameter between the aircraft and the control terminal. The formula can be:

Optionally, the input/output device 604 is configured to output the indication information generated by the processor 601.

Specifically, the specific manner in which the processor 601 determines whether the communication quality parameter meets the preset threshold condition may include the following:

Mode 1: Channel parameters include noise floor and signal to noise ratio.

Determining whether the noise floor is less than the first noise floor threshold, whether the signal to noise ratio is greater than the signal to noise ratio threshold, and whether the transmission measurement parameter satisfies the transmission measurement parameter threshold condition; if the above judgment result is no, the bottom noise is greater than or equal to the first bottom The noise threshold, the signal-to-noise ratio is less than or equal to the signal-to-noise ratio threshold, and the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition, and it may be determined that the communication quality parameter does not satisfy the preset threshold condition.

Determining whether the signal receiving strength is greater than the signal receiving intensity threshold, whether the signal to noise ratio is greater than the signal to noise ratio threshold, and whether the transmission measurement parameter satisfies the transmission measurement parameter threshold condition; if the above determination result is no, that is, the signal receiving strength is greater than or equal to the signal receiving The strength threshold, the signal-to-noise ratio is less than or equal to the signal-to-noise ratio threshold, and the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition, and it may be determined that the communication quality parameter does not satisfy the preset threshold condition.

Further, the channel parameters may also include a channel round trip delay. The processor 601 is further configured to calculate a signal reception strength threshold according to a channel round trip delay.

When the transmission measurement parameter is the frame transmission frame number and the code stream rate, the specific manner in which the processor 601 determines whether the transmission measurement parameter satisfies the transmission measurement parameter threshold condition may be:

When the transmission measurement parameter is the number of uplink instruction error packets, the specific manner in which the processor 601 determines whether the transmission measurement parameter satisfies the transmission measurement parameter threshold condition may be:

The processor 601 may also first detect whether the communication channel between the current aircraft and the control terminal is a user-selected channel, and if so, further detect the communication quality parameter of the user-selected channel. The communication quality parameters include channel parameters and transmission measurement parameters of the user-selected channel.

Then, the specific manner in which the processor 601 determines whether the communication quality parameter meets the preset threshold condition may be:

Determining whether the bottom noise of the user-selected channel is less than the second noise floor threshold, whether the number of frames lost is less than the threshold of the frame loss frame, and whether the code stream rate is greater than the code rate threshold; if the bottom noise is greater than or equal to the second noise floor The determination result of at least one of the threshold, the number of frame transmission frames, and the code stream rate is no, and it may be determined that the communication quality parameter does not satisfy the preset threshold condition.

Optionally, the specific manner in which the processor 601 detects the communication quality parameter between the aircraft and the control terminal may further include:

The processor 601 is further configured to calculate a second bottom noise threshold according to the minimum noise floor before determining whether the bottom noise of the user-selected channel is less than a second noise floor threshold.

Further, the processor 601 detects the communication channel between the current aircraft and the control terminal. When the user selects a channel and judges that the communication quality parameter does not satisfy the preset threshold condition, the reason for determining that the communication quality is deteriorated includes the reason why the user selects the channel unreasonable.

In the fourth manner, the processor 601 may further determine, according to the sequence, whether the communication quality parameter on the control terminal side meets a preset threshold condition. The specific way can be:

On the basis of the third mode, if the transmission measurement parameter (at least one of the frame transmission frame number and the code stream rate) does not satisfy the transmission measurement parameter threshold condition, the communication channel is not the user-selected channel, or the control terminal side noise floor is controlled. The processor 601 may further determine whether the signal receiving strength of the control terminal side is greater than the signal receiving strength threshold of the control terminal side, and whether the signal to noise ratio of the control terminal side is greater than that of the control terminal side when the second noise floor threshold is smaller than the second noise floor threshold. The noise ratio threshold, and when the judgment result is no, it is determined that the communication quality parameter does not satisfy the preset threshold condition.

Therefore, the cause of the processor 601 determining that the communication quality is deteriorated includes an unreasonable antenna placement or a cause of occlusion between the control terminal and the aircraft.

Method 5: On the basis of the method 4, if the signal receiving strength of the control terminal side is greater than the signal receiving strength threshold of the control terminal side, and the signal to noise ratio of the control terminal side is less than or equal to the signal to noise ratio threshold of the control terminal side, the processing is performed. The controller 601 may further determine whether the bottom noise of the control terminal side in the communication quality parameter is less than the first noise floor threshold of the control terminal side, and determine that the communication quality parameter does not satisfy the preset threshold condition when the determination result is negative.

Therefore, the reason why the processor 601 determines that the communication quality is deteriorated includes controlling the cause of signal interference on the terminal side.

Method 6, the processor 601 can also determine, in order, whether the communication quality parameter on the aircraft side is full. Pre-set threshold conditions. The specific way can be:

On the basis of the second mode, if the communication quality parameters (signal-to-noise ratio, signal reception strength, and uplink instruction error packet number) on the aircraft side do not satisfy the preset threshold condition, the processor 601 determines that the communication quality deteriorates due to the antenna placement. Unreasonable or the reason for the occlusion between the control terminal and the aircraft.

If the number of uplink instruction error packets is greater than or equal to the uplink instruction error packet threshold, the signal-to-noise ratio of the aircraft side is less than or equal to the signal-to-noise ratio threshold of the aircraft side, and the signal receiving strength of the aircraft side is greater than the signal receiving intensity threshold of the aircraft side. The processor 601 may further determine whether the noise floor on the aircraft side is smaller than the first noise floor threshold on the aircraft side, and when the determination result is no, determine that the communication quality parameter does not satisfy the preset threshold condition.

Therefore, the reason why the processor 601 determines that the communication quality is deteriorated includes the cause of signal interference on the aircraft side.

Optionally, when determining that the communication quality parameter meets the preset threshold condition, the indication information generated by the processor 601 includes information for prompting that the communication quality is normal.

It can be seen that, in the communication quality detecting device described in FIG. 6, the aircraft, the control terminal or the third party device can determine the aircraft according to whether the communication quality parameter satisfies a preset threshold condition after detecting the communication quality parameter between the aircraft and the control terminal. The reason for the change in communication quality with the control terminal, and the generation of the indication information including the cause, so that the quality of communication between the aircraft and the control terminal can be accurately detected. Further, the control terminal or the third party device outputting the indication information may help the user to adjust the operation, and may help improve the communication performance to a certain extent and improve the user flight experience.

Optionally, the above communication quality detecting device comprises a remote controller of an aircraft.

It should be noted that, in the above embodiments, the descriptions of the various embodiments are different, and the parts that are not described in detail in a certain embodiment may be referred to the related descriptions of other embodiments. In the following, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

The steps in the method of the embodiment of the present application may be sequentially adjusted, merged, and deleted according to actual needs.

The modules in the communication quality detecting apparatus of the embodiment of the present application may be combined, divided, and deleted according to actual needs.

The modules in the embodiments of the present application may be implemented by a general-purpose integrated circuit, such as a CPU (Central Processing Unit), or an ASIC (Application Specific Integrated Circuit).

A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The method, device and device for detecting communication quality disclosed in the embodiments of the present application are described in detail. The principles and implementation manners of the application are described in the specific examples. The description of the above embodiments is only used to help understand this text. Applicants and their core ideas; at the same time, those skilled in the art, according to the idea of the present application, there will be changes in the specific embodiments and application scope. In summary, the contents of this specification should not be construed as Application restrictions.

Claims

A communication quality detecting method, comprising:

Detecting communication quality parameters between the aircraft and the control terminal;

Determining whether the communication quality parameter meets a preset threshold condition;

Determining, according to the determination result, a cause of a change in communication quality between the aircraft and the control terminal, and generating indication information, wherein the indication information includes the cause.
The method of claim 1 wherein said communication quality parameters comprise channel parameters and transmission measurement parameters.
The method according to claim 1, wherein said detecting a communication quality parameter between the aircraft and the control terminal comprises:

The communication quality parameter between the aircraft and the control terminal is detected according to a preset time interval.
The method according to claim 2, wherein the channel parameter comprises a noise floor and a signal to noise ratio; and the determining whether the communication quality parameter satisfies a preset threshold condition comprises:

Determining whether the noise floor is less than a first noise floor threshold, whether the signal to noise ratio is greater than a signal to noise ratio threshold, and whether the transmission measurement parameter satisfies a transmission measurement parameter threshold condition;

When the determination result is no, it is determined that the communication quality parameter does not satisfy the preset threshold condition.
The method according to claim 2, wherein the channel parameter comprises a signal receiving strength and a signal to noise ratio; and the determining whether the communication quality parameter satisfies a preset threshold condition comprises:

Determining whether the signal receiving strength is greater than a signal receiving strength threshold, whether the signal to noise ratio is greater than a signal to noise ratio threshold, and whether the transmission measurement parameter satisfies a transmission measurement parameter threshold condition;

When the determination result is no, it is determined that the communication quality parameter does not satisfy the preset threshold condition.
The method according to claim 5, wherein the channel parameter further comprises a channel round-trip delay; and the determining whether the communication quality parameter satisfies a preset threshold condition further comprises:

The signal reception strength threshold is calculated according to the channel round trip delay.
The method according to claim 2, wherein before the detecting the communication quality parameter between the aircraft and the control terminal, the method further comprises:

Detecting whether a communication channel between the current aircraft and the control terminal is a user-selected channel;

The detecting communication quality parameters between the aircraft and the control terminal includes:

When the communication channel between the current aircraft and the control terminal is the user-selected channel, the communication quality parameter of the user-selected channel is detected.
The method according to claim 7, wherein the channel parameter comprises a bottom noise of the user-selected channel; and the determining whether the communication quality parameter satisfies a preset threshold condition comprises:

Determining whether a bottom noise of the user-selected channel is less than a second noise floor threshold, and whether the transmission measurement parameter satisfies a transmission measurement parameter threshold condition;

When the determination result is no, it is determined that the communication quality parameter does not satisfy the preset threshold condition.
The method according to claim 8, wherein the detecting the communication quality parameter between the aircraft and the control terminal further comprises:

Obtaining a noise floor of each communication channel between the aircraft and the control terminal, and determining a minimum noise floor;

The determining whether the communication quality parameter meets a preset threshold condition further includes:

The second noise floor threshold is calculated based on the minimum noise floor.
The method according to any one of claims 4 to 6, wherein the transmission measurement parameter comprises an uplink instruction error packet number; and the determining whether the transmission measurement parameter satisfies a transmission measurement parameter threshold condition comprises:

Determining whether the number of uplink instruction error packets is less than an uplink instruction error packet threshold;

When the determination result is no, it is determined that the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition.
The method according to any one of claims 4 to 6 or claim 8 or 9, wherein the transmission measurement parameter comprises a frame transmission frame number and a code stream rate; and the determining whether the transmission measurement parameter is Meet the transmission measurement parameter threshold conditions, including:

Determining whether the number of lost frames in the picture is less than a threshold of the number of frames lost, and whether the code rate is greater than a code rate threshold;

Determining that the transmission measurement parameter does not satisfy the transmission measurement parameter threshold when the number of the transmission frame is greater than or equal to the threshold of the number of frames lost, or the code rate is less than or equal to the threshold of the code rate. condition.
Method according to claim 8 or 9, characterized in that

And detecting that the communication channel between the aircraft and the control terminal is the user-selected channel, and determining that the communication quality parameter does not meet a preset threshold condition, the reason includes that the user selects a channel that is unreasonable.
The method according to claim 8 or 9, wherein the noise floor is a noise floor of the control terminal side; the channel parameter further comprises a signal receiving strength and a signal to noise ratio of the control terminal side;

The determining whether the communication quality parameter meets a preset threshold condition further includes:

And determining, when the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition, and the bottom noise of the control terminal side is less than the second noise floor threshold, determining whether the signal reception strength of the control terminal side is greater than the control a signal receiving strength threshold on the terminal side, and a signal to noise ratio on the control terminal side is greater than a signal to noise ratio threshold on the control terminal side;

If the determination result is no, it is determined that the communication quality parameter does not satisfy the preset threshold condition, and the reason includes an unreasonable antenna placement or a reason for the occlusion between the control terminal and the aircraft.
The method according to claim 13, wherein the determining whether the communication quality parameter satisfies a preset threshold condition further comprises:

When the signal receiving strength of the control terminal side is greater than the signal receiving strength threshold of the control terminal side, and the signal to noise ratio of the control terminal side is less than or equal to the signal to noise ratio threshold of the control terminal side, determining the Controlling whether the bottom noise of the terminal side is smaller than the first noise floor threshold of the control terminal side;

When the determination result is no, it is determined that the communication quality parameter does not satisfy the preset threshold condition, and the reason includes the reason that the control terminal side has signal interference.
The method according to claim 5 or 6, wherein when the communication quality parameter is not satisfied to meet a preset threshold condition, the reason includes an unreasonable antenna placement or a presence between the control terminal and the aircraft. The reason for occlusion.
The method according to claim 5 or 6, wherein the signal receiving strength and the signal to noise ratio are respectively a signal receiving strength and a signal to noise ratio of the aircraft side; the signal receiving intensity threshold is the a signal receiving intensity threshold on the aircraft side; the signal to noise ratio threshold is a signal to noise ratio threshold of the aircraft side; the channel parameter further includes a noise floor on the aircraft side;

The determining whether the communication quality parameter meets a preset threshold condition further includes:

If the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition, the signal-to-noise ratio of the aircraft side is less than or equal to a signal-to-noise ratio threshold of the aircraft side, and the signal receiving strength of the aircraft side is greater than the aircraft When the signal of the side receives the intensity threshold, it is determined whether the noise floor of the aircraft side is smaller than the first noise floor threshold of the aircraft side;

When the determination result is no, it is determined that the communication quality parameter does not satisfy the preset threshold condition, and the reason includes the reason that the aircraft side has signal interference.
The method of claim 1 further comprising:

When it is determined that the communication quality parameter satisfies the preset threshold condition, the indication information includes information for prompting that the communication quality is normal.
A communication quality detecting device, comprising:

a detecting module, configured to detect a communication quality parameter between the aircraft and the control terminal;

a determining module, configured to determine whether the communication quality parameter meets a preset threshold condition;

a determining module, configured to determine a cause of a change in communication quality between the aircraft and the control terminal according to the determination result;

And generating a module, configured to generate indication information, where the indication information includes the reason.
The apparatus of claim 18 wherein said communication quality parameter comprises a letter Channel parameters and transmission measurement parameters.
The device according to claim 18, wherein the specific manner of detecting the communication quality parameter between the aircraft and the control terminal by the detecting module comprises:

The communication quality parameter between the aircraft and the control terminal is detected according to a preset time interval.
The apparatus according to claim 19, wherein said channel parameter comprises a noise floor and a signal to noise ratio; said determining module comprising:

a determining unit, configured to determine whether the bottom noise is less than a first noise floor threshold, whether the signal to noise ratio is greater than a signal to noise ratio threshold, and whether the transmission measurement parameter satisfies a transmission measurement parameter threshold condition;

And a determining unit, configured to determine, when the determining result of the determining unit is negative, that the communication quality parameter does not satisfy the preset threshold condition.
The apparatus according to claim 19, wherein the channel parameter comprises a signal reception strength and a signal to noise ratio; and the determining module comprises:

a determining unit, configured to determine whether the signal receiving strength is greater than a signal receiving strength threshold, whether the signal to noise ratio is greater than a signal to noise ratio threshold, and whether the transmission measurement parameter satisfies a transmission measurement parameter threshold condition;

And a determining unit, configured to determine, when the determining result of the determining unit is negative, that the communication quality parameter does not satisfy the preset threshold condition.
The device according to claim 22, wherein the channel parameter further comprises a channel round trip delay; the determining module further comprising:

The calculating unit is configured to calculate the signal receiving strength threshold according to the channel round trip delay.
The device according to claim 19, characterized in that

The detecting module is further configured to detect whether a communication channel between the current aircraft and the control terminal is a user-selected channel;

The specific module of the detection module detecting the communication quality parameter between the aircraft and the control terminal include:

When the communication channel between the current aircraft and the control terminal is the user-selected channel, the communication quality parameter of the user-selected channel is detected.
The device according to claim 24, wherein the channel parameter comprises a bottom noise of the user-selected channel; the determining module comprises:

a determining unit, configured to determine whether a bottom noise of the user-selected channel is less than a second noise floor threshold, and whether the transmission measurement parameter satisfies a transmission measurement parameter threshold condition;

And a determining unit, configured to determine, when the determining result of the determining unit is negative, that the communication quality parameter does not satisfy the preset threshold condition.
The device according to claim 25, wherein

The specific manner of the detection module detecting the communication quality parameter between the aircraft and the control terminal further includes:

Obtaining a noise floor of each communication channel between the aircraft and the control terminal, and determining a minimum noise floor;

The determining module further includes:

And a calculating unit, configured to calculate the second noise floor threshold according to the minimum noise floor.
The device according to any one of claims 21 to 23, wherein the transmission measurement parameter comprises an uplink instruction error packet number; and the determining unit determines whether the transmission measurement parameter satisfies a specific condition of transmitting a measurement parameter threshold condition include:

Determining whether the number of uplink instruction error packets is less than an uplink instruction error packet threshold;

When the determination result is no, it is determined that the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition.
The apparatus according to any one of claims 21 to 23 or claim 25 or 26, wherein the transmission measurement parameter comprises a frame transmission frame number and a code stream rate; and the determining unit determines the transmission measurement parameter The specific ways to meet the transmission measurement parameter threshold conditions include:

Determining whether the number of lost frames in the graph is less than a threshold of the number of dropped frames, and whether the code rate is greater than Code rate threshold;

Determining that the transmission measurement parameter does not satisfy the transmission measurement parameter threshold when the number of the transmission frame is greater than or equal to the threshold of the number of frames lost, or the code rate is less than or equal to the threshold of the code rate. condition.
The apparatus according to claim 25 or 26, wherein said detecting module detects that a communication channel between said current aircraft and said control terminal is said user-selected channel, and said judging module judges said When the communication quality parameter does not meet the preset threshold condition, the reason includes the reason why the user selects the channel unreasonable.
The device according to claim 25 or 26, wherein the noise floor is a noise floor of the control terminal side; the channel parameter further includes a signal receiving strength and a signal to noise ratio of the control terminal side;

The determining unit is further configured to: when the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition, and the bottom noise of the control terminal side is less than the second noise floor threshold, determine the control terminal side Whether the signal receiving strength is greater than a signal receiving strength threshold of the control terminal side, and whether the signal to noise ratio of the control terminal side is greater than a signal to noise ratio threshold of the control terminal side;

The determining unit is further configured to: when the determination result of the determining unit is negative, determine that the communication quality parameter does not meet a preset threshold condition, where the reason includes an unreasonable antenna placement or the control terminal and the There is a reason for the occlusion between the aircraft.
The device of claim 30 wherein:

The determining unit is further configured to: the signal receiving strength on the control terminal side is greater than the signal receiving strength threshold on the control terminal side, and the signal to noise ratio on the control terminal side is less than or equal to the information on the control terminal side When the noise ratio threshold is used, it is determined whether the bottom noise of the control terminal side is smaller than a first noise floor threshold of the control terminal side;

The determining unit is further configured to: when the determining result of the determining unit is negative, determine that the communication quality parameter does not meet a preset threshold condition, where the cause includes a cause of signal interference on the control terminal side.
The device according to claim 22 or 23, wherein when the determining module determines that the communication quality parameter does not satisfy a preset threshold condition, the reason includes that the antenna is placed unreasonably or the control terminal and the device are There is a reason for the occlusion between the aircraft.
The apparatus according to claim 22 or 23, wherein said signal reception intensity and said signal-to-noise ratio are respectively a signal reception intensity and a signal-to-noise ratio of said aircraft side; said signal reception intensity threshold is said a signal receiving intensity threshold on the aircraft side; the signal to noise ratio threshold is a signal to noise ratio threshold of the aircraft side; the channel parameter further includes a noise floor on the aircraft side;

The determining unit is further configured to: when the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition, the signal-to-noise ratio of the aircraft side is less than or equal to a signal-to-noise ratio threshold of the aircraft side, and the aircraft side When the signal receiving intensity is greater than the signal receiving intensity threshold of the aircraft side, determining whether the bottom noise of the aircraft side is smaller than a first noise floor threshold of the aircraft side;

The determining unit is further configured to: when the determining result of the determining unit is negative, determine that the communication quality parameter does not satisfy a preset threshold condition, where the reason includes a cause of signal interference on the aircraft side.
The apparatus according to claim 18, wherein, when the determining module determines that the communication quality parameter satisfies the preset threshold condition, the indication information includes information for prompting that the communication quality is normal.
A communication quality detecting device, comprising:

a processor, configured to detect a communication quality parameter between the aircraft and the control terminal, determine whether the communication quality parameter meets a preset threshold condition, and determine, according to the determination result, a change in communication quality between the aircraft and the control terminal And cause indication information, the indication information including the reason.
The apparatus of claim 35 wherein said communication quality parameters comprise channel parameters and transmission measurement parameters.
The device according to claim 35, wherein the specific manner in which the processor detects a communication quality parameter between the aircraft and the control terminal comprises:

The communication quality parameter between the aircraft and the control terminal is detected according to a preset time interval.
The device according to claim 36, wherein the channel parameter comprises a noise floor and a signal to noise ratio; and the specific manner in which the processor determines whether the communication quality parameter meets a preset threshold condition comprises:

Determining whether the noise floor is less than a first noise floor threshold, whether the signal to noise ratio is greater than a signal to noise ratio threshold, and whether the transmission measurement parameter satisfies a transmission measurement parameter threshold condition;

When the determination result is no, it is determined that the communication quality parameter does not satisfy the preset threshold condition.
The device according to claim 36, wherein the channel parameter comprises a signal receiving strength and a signal to noise ratio; and the specific manner in which the processor determines whether the communication quality parameter satisfies a preset threshold condition comprises:

Determining whether the signal receiving strength is greater than a signal receiving strength threshold, whether the signal to noise ratio is greater than a signal to noise ratio threshold, and whether the transmission measurement parameter satisfies a transmission measurement parameter threshold condition;

When the determination result is no, it is determined that the communication quality parameter does not satisfy the preset threshold condition.
The device according to claim 39, wherein the channel parameter further comprises a channel round trip delay; and the processor is further configured to calculate the signal reception strength threshold according to the channel round trip delay.
The device according to claim 36, wherein

The processor is further configured to detect whether a communication channel between the current aircraft and the control terminal is a user-selected channel;

The specific manner in which the processor detects the communication quality parameter between the aircraft and the control terminal includes:

When the communication channel between the current aircraft and the control terminal is the user-selected channel, the communication quality parameter of the user-selected channel is detected.
The device according to claim 41, wherein the channel parameter comprises a bottom noise of the user-selected channel; and the specific manner of the processor determining whether the communication quality parameter meets a preset threshold condition comprises:

Determining whether a bottom noise of the user-selected channel is less than a second noise floor threshold, and whether the transmission measurement parameter satisfies a transmission measurement parameter threshold condition;

When the determination result is no, it is determined that the communication quality parameter does not satisfy the preset threshold condition.
The device according to claim 42, wherein

The specific manner of the processor detecting the communication quality parameter between the aircraft and the control terminal further includes:

Obtaining a noise floor of each communication channel between the aircraft and the control terminal, and determining a minimum noise floor;

The processor is further configured to calculate the second noise floor threshold according to the minimum noise floor.
The device according to any one of claims 38 to 40, wherein the transmission measurement parameter comprises an uplink instruction error packet number; and the processor determines whether the transmission measurement parameter satisfies a specific condition of transmitting a measurement parameter threshold condition include:

Determining whether the number of uplink instruction error packets is less than an uplink instruction error packet threshold;

When the determination result is no, it is determined that the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition.
The device according to any one of claims 38 to 40 or claim 42 or 43, wherein the transmission measurement parameter comprises a frame transmission frame number and a code stream rate; and the processor determines the transmission measurement parameter The specific ways to meet the transmission measurement parameter threshold conditions include:

Determining whether the number of lost frames in the picture is less than a threshold of the number of frames lost, and whether the code rate is greater than a code rate threshold;

Determining that the transmission measurement parameter does not satisfy the transmission measurement parameter threshold when the number of the transmission frame is greater than or equal to the threshold of the number of frames lost, or the code rate is less than or equal to the threshold of the code rate. condition.
The device according to claim 42 or 43, wherein the communication channel between the current aircraft and the control terminal is detected as the user-selected channel, and it is determined that the communication quality parameter does not satisfy a preset threshold In the case of conditions, the reason includes the reason why the user selects an unreasonable channel.
The device according to claim 42 or 43, wherein the noise floor is a noise floor of the control terminal side; the channel parameter further comprises a signal receiving strength and a signal to noise ratio of the control terminal side;

The specific manner of the processor determining whether the communication quality parameter meets a preset threshold condition further includes:

And determining, when the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition, and the bottom noise of the control terminal side is less than the second noise floor threshold, determining whether the signal reception strength of the control terminal side is greater than the control a signal receiving strength threshold on the terminal side, and a signal to noise ratio on the control terminal side is greater than a signal to noise ratio threshold on the control terminal side;

If the determination result is no, it is determined that the communication quality parameter does not satisfy the preset threshold condition, and the reason includes an unreasonable antenna placement or a reason for the occlusion between the control terminal and the aircraft.
The device according to claim 47, wherein the specific manner of the processor determining whether the communication quality parameter meets a preset threshold condition further includes:

When the signal receiving strength of the control terminal side is greater than the signal receiving strength threshold of the control terminal side, and the signal to noise ratio of the control terminal side is less than or equal to the signal to noise ratio threshold of the control terminal side, determining the Controlling whether the bottom noise of the terminal side is smaller than the first noise floor threshold of the control terminal side;

When the determination result is no, it is determined that the communication quality parameter does not satisfy the preset threshold condition, and the reason includes the reason that the control terminal side has signal interference.
The device according to claim 39 or 40, wherein when it is determined that the communication quality parameter does not satisfy a preset threshold condition, the reason includes an unreasonable antenna placement or between the control terminal and the aircraft There is a reason for occlusion.
The apparatus according to claim 39 or 40, wherein said signal reception intensity and said signal-to-noise ratio are respectively a signal reception intensity and a signal-to-noise ratio of said aircraft side; said signal reception intensity threshold is said a signal receiving intensity threshold on the aircraft side; the signal to noise ratio threshold is a signal to noise ratio threshold of the aircraft side; the channel parameter further includes a noise floor on the aircraft side;

The specific manner of the processor determining whether the communication quality parameter meets a preset threshold condition further includes:

If the transmission measurement parameter does not satisfy the transmission measurement parameter threshold condition, the signal-to-noise ratio of the aircraft side is less than or equal to a signal-to-noise ratio threshold of the aircraft side, and the signal receiving strength of the aircraft side is greater than the aircraft When the signal of the side receives the intensity threshold, it is determined whether the noise floor of the aircraft side is smaller than the first noise floor threshold of the aircraft side;

When the determination result is no, it is determined that the communication quality parameter does not satisfy the preset threshold condition, and the reason includes the reason that the aircraft side has signal interference.
The device according to claim 35, wherein, when it is determined that the communication quality parameter satisfies the preset threshold condition, the indication information includes information for prompting that the communication quality is normal.
The device of claim 35, wherein said device comprises a remote control for an aircraft.