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WO2018053864A1 - Procédé, appareil, et dispositif de détection de qualité de communication - Google Patents

Procédé, appareil, et dispositif de détection de qualité de communication Download PDF

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Publication number
WO2018053864A1
WO2018053864A1 PCT/CN2016/100193 CN2016100193W WO2018053864A1 WO 2018053864 A1 WO2018053864 A1 WO 2018053864A1 CN 2016100193 W CN2016100193 W CN 2016100193W WO 2018053864 A1 WO2018053864 A1 WO 2018053864A1
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WIPO (PCT)
Prior art keywords
communication quality
threshold
control terminal
signal
aircraft
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Application number
PCT/CN2016/100193
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English (en)
Chinese (zh)
Inventor
饶雄斌
王宇
范伟
王乃博
高建南
戴劲
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SZ DJI Technology Co Ltd
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SZ DJI Technology Co Ltd
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Publication date
Application filed by SZ DJI Technology Co Ltd filed Critical SZ DJI Technology Co Ltd
Priority to CN201680016886.6A priority Critical patent/CN107690823B/zh
Priority to PCT/CN2016/100193 priority patent/WO2018053864A1/fr
Publication of WO2018053864A1 publication Critical patent/WO2018053864A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00—UAVs specially adapted for particular uses or applications
    • B64U2101/20—UAVs specially adapted for particular uses or applications for use as communications relays, e.g. high-altitude platforms

Definitions

  • the present application relates to the field of UAV communication technologies, and in particular, to a communication quality detection method, apparatus and device.
  • 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.
  • 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.
  • 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:
  • 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
  • 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.
  • 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.
  • FIG. 1 is a schematic flow chart of a communication quality detecting method disclosed in this embodiment
  • FIG. 2 is a schematic flowchart diagram of another communication quality detecting method disclosed in this embodiment.
  • FIG. 3 is a schematic flow chart of still another communication quality detecting method disclosed in this embodiment.
  • FIG. 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. 6 is a schematic structural diagram of a communication quality detecting apparatus disclosed in this embodiment.
  • 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.
  • FIG. 1 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.
  • the method may include the following steps:
  • the communication quality detecting device when the aircraft communicates with the control terminal, 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.
  • 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. .
  • the preset threshold condition refers to a threshold corresponding to each of the communication quality parameters.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the communication quality detecting apparatus may further output the indication information.
  • 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.
  • 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.
  • the communication quality detecting apparatus determines that the communication quality parameter satisfies the preset threshold condition.
  • 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.
  • 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
  • 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.
  • the determination result of the above parameters 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.
  • the communication quality detecting apparatus determines that the communication quality parameter satisfies the preset threshold condition.
  • the SNR threshold and the transmission measurement parameter threshold are all preset constant thresholds, which are not limited in this embodiment.
  • 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
  • the signal reception strength threshold and the signal-to-noise ratio threshold are both control terminals. Side threshold.
  • the transmission measurement parameter is the number of uplink instruction error packets
  • the signal receiving strength threshold and the signal-to-noise ratio threshold are both the threshold of the aircraft side
  • 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.
  • the signal reception strength threshold can be calculated according to the channel round trip delay.
  • ⁇ RSRP is a preset constant value
  • RSRP th1 (RRT) is the received signal power of the control terminal in vacuum
  • Puav-tx represents the radiated power of the aircraft
  • f uav-tx represents the center frequency of the downlink transmit band (in MHz).
  • 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.
  • c v represents the speed of light in the vacuum and RTT represents the round trip delay of the channel.
  • RSRP th2 represents the received signal power of the aircraft in vacuum
  • P rc-tx represents the radiation power of the control terminal
  • f rc-tx represents the center frequency (in MHz) of the uplink transmission band.
  • 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.
  • 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.
  • 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.
  • 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:
  • the communication quality detecting device may determine that the communication quality parameter does not satisfy the preset threshold condition.
  • the communication quality detecting apparatus determines that the communication quality parameter satisfies the preset threshold condition.
  • 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.
  • 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.
  • 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.
  • ⁇ N 0 is a preset constant
  • N rc_min min ⁇ N rc [1], ... N rc [k] ⁇
  • k is a constant.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the method may include the following steps:
  • 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
  • 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.
  • the communication quality detecting device may further output indication information that the user selects an unreasonable channel.
  • 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.
  • 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.
  • the communication quality detecting device further analyzes the communication quality parameter on the control terminal side.
  • 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.
  • the control terminal side determines 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.
  • 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.
  • the communication quality detecting device may further output indication information for controlling the cause of the signal interference on the terminal side.
  • 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.
  • 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.
  • FIG. 3 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.
  • the method may include the following steps:
  • 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.
  • 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.
  • the time limit 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.
  • 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.
  • the communication quality detecting device may further output indication information for controlling the cause of signal interference on the aircraft side.
  • 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.
  • 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.
  • FIG. 4 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.
  • 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.
  • 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.
  • the communication quality detecting apparatus may further include an output module 405, configured to output the indication information generated by the generating module 404.
  • 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.
  • 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.
  • 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.
  • Mode 2 Channel parameters include signal reception strength and signal to noise ratio.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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
  • the signal receiving intensity threshold and the signal-to-noise ratio threshold are both the thresholds of the aircraft side
  • 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.
  • 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.
  • the determining unit 4021 determines whether the transmission measurement parameter satisfies the transmission measurement parameter threshold condition, and the specific manner may be:
  • the specific manner in which the determining unit 4021 determines whether the transmission measurement parameter satisfies the transmission measurement parameter threshold condition may be:
  • the channel parameters include bottom noise, and the transmission measurement parameters include a frame transmission frame number and a code stream rate.
  • 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.
  • 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.
  • the determining module 403 determines that the communication quality is deteriorated, including: The reason why the user chooses the channel is unreasonable.
  • 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.
  • 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:
  • 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.
  • 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.
  • 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.
  • 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.
  • the SNR threshold 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.
  • 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.
  • the determination module 403 determines that the communication quality is degraded because the control terminal has a cause of signal interference.
  • 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:
  • 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.
  • 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.
  • 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
  • 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.
  • the determination module 403 determines that the communication quality is degraded because of the presence of signal interference on the aircraft side.
  • the indication information generated by the generating module 404 includes information for prompting that the communication quality is normal.
  • 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.
  • FIG. 6 is a schematic structural diagram of a communication quality detecting apparatus according to this embodiment.
  • 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.
  • 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.
  • the processor 601 detects a specific party of the communication quality parameter between the aircraft and the control terminal.
  • the formula can be:
  • the communication quality parameter between the aircraft and the control terminal is detected according to a preset time interval.
  • the input/output device 604 is configured to output the indication information generated by the processor 601.
  • 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.
  • 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.
  • 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.
  • 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.
  • Mode 2 Channel parameters include signal reception strength and signal to noise ratio.
  • 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.
  • 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.
  • 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
  • the signal receiving intensity threshold and the signal-to-noise ratio threshold are both the thresholds of the aircraft side
  • 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.
  • 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.
  • 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.
  • the specific manner in which the processor 601 determines whether the transmission measurement parameter satisfies the transmission measurement parameter threshold condition may be:
  • the specific manner in which the processor 601 determines whether the transmission measurement parameter satisfies the transmission measurement parameter threshold condition may be:
  • the channel parameters include bottom noise, and the transmission measurement parameters include a frame transmission frame number and a code stream rate.
  • 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.
  • the specific manner in which the processor 601 determines whether the communication quality parameter meets the preset threshold condition may be:
  • 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.
  • the specific manner in which the processor 601 detects 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 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.
  • the processor 601 detects the communication channel between the current aircraft and the control terminal.
  • the reason for determining that the communication quality is deteriorated includes the reason why the user selects the channel unreasonable.
  • 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.
  • 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:
  • 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.
  • 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.
  • 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:
  • 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.
  • 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.
  • the reason why the processor 601 determines that the communication quality is deteriorated includes the cause of signal interference on the aircraft side.
  • the indication information generated by the processor 601 includes information for prompting that the communication quality is normal.
  • 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 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.
  • the above communication quality detecting device comprises a remote controller of an aircraft.
  • 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 general-purpose integrated circuit such as a CPU (Central Processing Unit), or an ASIC (Application Specific Integrated Circuit).
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé, un appareil, et un dispositif de détection d'une qualité de communication. Le procédé comprend les étapes suivantes : après qu'un appareil de détection de qualité de communication a détecté un paramètre de qualité de communication entre un véhicule aérien et un terminal de commande, l'appareil de détection de qualité de communication peut : déterminer la cause d'un changement de qualité de communication entre le véhicule aérien et le terminal de commande sur la base du fait que le paramètre de qualité de communication satisfait ou non une condition de seuil prédéfinie ; et générer des informations d'indication comprenant la cause, ce qui permet de détecter avec précision la qualité de communication entre le véhicule aérien et le terminal de commande. En outre, la fourniture des informations d'indication peut aider un utilisateur à ajuster des opérations, ce qui peut favoriser l'amélioration de performances de communication dans une certaine mesure, et l'amélioration de l'expérience de vol de l'utilisateur.
PCT/CN2016/100193 2016-09-26 2016-09-26 Procédé, appareil, et dispositif de détection de qualité de communication Ceased WO2018053864A1 (fr)

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