Relay function detection system, relay function detection method and reception test device

Abstract

The invention relates to a relay function detection system, a relay function detection method and receiving test equipment. The first airborne communication equipment is used for sending the transmission data to the attenuator; the attenuator is used for simulating signal attenuation in a data transmission process to carry out attenuation processing on the transmission data and sending the attenuation data to the second airborne communication equipment through the antenna; the second airborne communication equipment is used for sending the attenuation data to the receiving test equipment through an antenna on the first airborne communication equipment; and the receiving test equipment is used for detecting the relay function of the second airborne communication equipment according to the transmission data and the attenuation data. According to the embodiment of the invention, the attenuator is used for simulating the attenuation of the data in the transmission process, the first airborne communication equipment and the second airborne communication equipment do not need to be arranged on the aircraft and the air platform, the relay function detection cost is reduced, and the implementation mode is simple.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a relay function detection system, a relay function detection method and a receiving test device. Background Art

[0002] By adding one or more aerial platforms carrying airborne communication equipment between the ground receiving station and the aircraft, and using the airborne communication equipment to forward the wireless signal once or multiple times, so that the wireless signal reaches the ground receiving station after multiple hops, the problem of normal communication between the ground receiving station and the aircraft due to long distance or obstruction can be solved. In order to ensure the reliable operation of communication, improve data transmission efficiency and optimize system performance, it is necessary to test the relay function of the airborne communication equipment on the aerial platform.

[0003] At present, the relay function of airborne communication equipment is mainly tested by setting up actual application scenarios. That is, it is necessary to use an aerial platform to carry airborne communication equipment for data transmission, and to test the relay function based on the data transmission in the actual application scenario.

[0004] However, this method has the problems of great difficulty and high cost. Summary of the invention

[0005] Based on this, it is necessary to provide a relay function detection system, a relay function detection method and a receiving test equipment that can reduce the detection cost and detection difficulty in response to the above technical problems.

[0006] In a first aspect, the present application provides a relay function detection system, the system comprising a receiving test device, a first airborne communication device, an attenuator, and a second airborne communication device; the attenuator is connected in series with an antenna on the first airborne communication device;

[0007] The first airborne communication device is used to send transmission data to the attenuator;

[0008] The attenuator is used to simulate the signal attenuation during the data transmission process to perform attenuation processing on the transmission data, and send the attenuated data to the second airborne communication device through the antenna on the first airborne communication device;

[0009] The second airborne communication device is used to send the attenuation data to the receiving test device;

[0010] The receiving test device is used to detect the relay function of the second airborne communication device according to the transmission data and the attenuation data.

[0011] In one of the embodiments, the attenuator comprises an adjustable attenuator;

[0012] The adjustable attenuator is used to adjustably attenuate the signal strength of the transmission data based on the attenuation strength range of the adjustable attenuator.

[0013] In one embodiment, the attenuator comprises a fixed attenuator;

[0014] The fixed attenuator is used to perform fixed attenuation on the signal strength of the transmission data based on the attenuation strength of the fixed attenuator.

[0015] In one of the embodiments, the receiving test device is connected to the first airborne communication device via a radio frequency cable, and the first airborne communication device is connected to the attenuator via a radio frequency cable;

[0016] The first airborne communication device is wirelessly connected to the second airborne communication device, and the second airborne communication device is wirelessly connected to the receiving test device.

[0017] In one embodiment, the receiving test equipment includes a ground receiving device and a data processing device, the ground receiving device and the data processing device are connected via a radio frequency cable, the ground receiving device and the second airborne communication device are wirelessly connected, and the data processing device and the first airborne communication device are connected via a radio frequency cable;

[0018] The ground receiving device is used to receive the attenuation data sent by the second airborne communication device, and send the attenuation data to the data processing device;

[0019] The data processing device is used to detect the relay function of the second airborne communication device according to the transmission data and the attenuation data.

[0020] In one of the embodiments, the data processing device is further used to generate transmission data according to a preset algorithm, and send the transmission data to the first airborne communication device.

[0021] In one embodiment, the transmission data includes time-varying flight parameter data; the attenuation data includes attenuated time-varying flight parameter data obtained by attenuating the time-varying flight parameter data;

[0022] The data processing device is used to determine the bit error rate based on the time-varying flight parameter data and the attenuated time-varying flight parameter data, so as to detect the relay function of the second airborne communication device according to the bit error rate.

[0023] In one embodiment, the transmission data includes visual data; the attenuation data includes attenuated visual data obtained by attenuating the visual data;

[0024] The data processing device is used to determine a normal display rate according to the visual data and the attenuated visual data, so as to detect the relay function of the second airborne communication device according to the normal display rate.

[0025] In a second aspect, the present application provides a relay function detection method, which is applied to a receiving test device of the relay function detection system provided in the first aspect, and the method includes:

[0026] receiving attenuation data sent by the second airborne communication device; the attenuation data is used by the attenuator to simulate the signal attenuation in the data transmission process to attenuate the transmission data, and is sent to the second airborne communication device through the antenna on the first airborne communication device; the transmission data is sent by the first airborne communication device to the attenuator;

[0027] The relay function of the second airborne communication device is detected according to the transmission data and the attenuation data.

[0028] In a third aspect, the present application also provides a relay function detection device, including:

[0029] The first receiving module is used to receive attenuation data sent by the second airborne communication device; the attenuation data is used by the attenuator to simulate the signal attenuation in the data transmission process to attenuate the transmission data, and is sent to the second airborne communication device through the antenna on the first airborne communication device; the transmission data is sent by the first airborne communication device to the attenuator;

[0030] The first detection module is used to detect the relay function of the second airborne communication device according to the transmission data and the attenuation data.

[0031] In a fourth aspect, the present application further provides a relay function detection device, the device comprising:

[0032] The second receiving module is used to receive the attenuation data sent by the second airborne communication device; the attenuation data is used by the attenuator to simulate the signal attenuation in the data transmission process to attenuate the transmission data, and is sent to the second airborne communication device through the antenna on the first airborne communication device; the transmission data is sent by the first airborne communication device to the attenuator;

[0033] The second detection module is used to detect the relay function of the second airborne communication device according to the transmission data and the attenuation data.

[0034] In a fifth aspect, the present application further provides a receiving test device, comprising a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0035] receiving attenuation data sent by the second airborne communication device; the attenuation data is used by the attenuator to simulate the signal attenuation in the data transmission process to attenuate the transmission data, and is sent to the second airborne communication device through the antenna on the first airborne communication device; the transmission data is sent by the first airborne communication device to the attenuator;

[0036] The relay function of the second airborne communication device is detected according to the transmission data and the attenuation data.

[0037] In a sixth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the following steps are implemented:

[0038] receiving attenuation data sent by the second airborne communication device; the attenuation data is used by the attenuator to simulate the signal attenuation in the data transmission process to attenuate the transmission data, and is sent to the second airborne communication device through the antenna on the first airborne communication device; the transmission data is sent by the first airborne communication device to the attenuator;

[0039] The relay function of the second airborne communication device is detected according to the transmission data and the attenuation data.

[0040] In a seventh aspect, the present application further provides a computer program product, including a computer program, which implements the following steps when executed by a processor:

[0041] receiving attenuation data sent by the second airborne communication device; the attenuation data is used by the attenuator to simulate the signal attenuation in the data transmission process to attenuate the transmission data, and is sent to the second airborne communication device through the antenna on the first airborne communication device; the transmission data is sent by the first airborne communication device to the attenuator;

[0042] The relay function of the second airborne communication device is detected according to the transmission data and the attenuation data.

[0043] The above-mentioned relay function detection system, relay function detection method and receiving test equipment, the relay function detection system includes a receiving test equipment, a first airborne communication device, an attenuator and a second airborne communication device; the first airborne communication device is used to send the transmission data to the attenuator; the attenuator is used to simulate the signal attenuation during the data transmission process to attenuate the transmission data, and send the attenuation data to the second airborne communication device through the antenna on the first airborne communication device; the second airborne communication device is used to send the attenuation data to the receiving test equipment; the receiving test equipment is used to detect the relay function of the second airborne communication device according to the transmission data and the attenuation data. The embodiment of the present application uses an attenuator to simulate the attenuation of data during the transmission process. It is not necessary to set the first airborne communication device and the second airborne communication device on the aircraft and the aerial platform, and the attenuation data during the actual flight process can be obtained. The relay function of the second airborne communication device is detected according to the transmission data and the attenuation data, which reduces the cost of relay function detection, and the implementation method is simple and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0045] FIG1 is a schematic diagram of a relay function detection system in one embodiment;

[0046] FIG2 is a schematic diagram of a relay function detection system in another embodiment;

[0047] FIG3 is a schematic diagram of a flow chart of a relay function detection method in one embodiment;

[0048] FIG4 is a structural block diagram of a relay function detection device in one embodiment;

[0049] FIG. 5 is a diagram showing the internal structure of a receiving test device in one embodiment.

[0050] Description of reference numerals:

[0051] 01. Relay function detection system; 10. Receiving test equipment;

[0052] 20. a first airborne communication device; 30. an attenuator;

[0053] 40. Second airborne communication equipment; 301. Adjustable attenuator;

[0054] 302. Fixed attenuator; 50. RF cable;

[0055] 101. Ground receiving equipment; 102. Data processing equipment;

[0056] 71. A first receiving module; 72. A first detecting module. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0058] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0059] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0060] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0061] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0062] In order to cope with the influence of factors such as the earth's curvature, ground obstruction, and the environment when the aircraft performs beyond-visual-range flight missions, and to extend the range of the data link, relay communication based on aerial platforms is an important means to solve emergency communications and special terrain communications. That is, by adding one or more aerial platforms between the ground receiving station and the aircraft, the airborne communication equipment on the aerial platform can forward the wireless signal once or multiple times, so that the wireless signal can reach the ground receiving station after multiple hops, solving the problem that the ground receiving station and the aircraft cannot communicate normally due to the long distance or obstruction.

[0063] Since the use of an aerial platform carrying communication equipment can effectively solve the problem of insufficient microwave radio coverage under complex terrain conditions, the platform can be quickly deployed in the air to establish a temporary broadband relay communication system for the ground, making relay communications based on aerial platforms widely used in my country.

[0064] Currently, there is no device or equipment specifically for testing the relay function of airborne communication equipment. Testing is mostly done through test flights. By building a real application scenario, multiple aircraft take off and fly to a specific location, and the airborne communication equipment, aerial platform and ground receiving station enter the relay mode, it is tested whether the ground receiving station can receive the flight parameter data or video images sent back by the aerial platform to test whether the relay function is normal.

[0065] However, this method has the problems of great difficulty and high cost. Therefore, the present application proposes a relay function detection system, a relay function detection method and a receiving test device that can solve the above problems.

[0066] Figure 1 is a schematic diagram of a relay function detection system in an embodiment. In an exemplary embodiment, as shown in Figure 1, the relay function detection system 01 includes a receiving test device 10, a first airborne communication device 20, an attenuator 30 and a second airborne communication device 40; the attenuator 30 is connected in series with the antenna on the first airborne communication device 20; the first airborne communication device 20 is used to send transmission data to the attenuator 30; the attenuator 30 is used to simulate the signal attenuation during data transmission to attenuate the transmission data, and send the attenuated data to the second airborne communication device 40 through the antenna on the first airborne communication device 20; the second airborne communication device 40 is used to send the attenuated data to the receiving test device 10; the receiving test device 10 is used to detect the relay function of the second airborne communication device 40 according to the transmission data and the attenuation data.

[0067] In this embodiment, as shown in FIG1 , the relay function detection system 01 includes a receiving test device 10, a first airborne communication device 20, an attenuator 30, and a second airborne communication device 40. The receiving test device 10 is connected to the first airborne communication device 20, and the first airborne communication device 20 is connected to the attenuator 30, that is, the attenuator 30 is connected to the first airborne communication device 20 in series, the first airborne communication device 20 is connected to the second airborne communication device 40, and the second airborne communication device 40 is connected to the receiving test device 10. Optionally, the receiving test device 10 and the first airborne communication device 20, and the first airborne communication device 20 and the attenuator 30 may be connected by wire or wirelessly through a radio frequency cable; the first airborne communication device 20 and the second airborne communication device 40, and the second airborne communication device 40 and the receiving test device 10 may be connected wirelessly.

[0068] The first airborne communication device 20 is a communication device on the aircraft, and the second airborne communication device 40 is a communication device installed on the aerial platform. Optionally, the first airborne communication device 20 and the second airborne communication device 40 can be an aircraft radio, an intercom, a satellite communication device, a data link, a multi-modal communication system, etc.

[0069] The receiving test equipment 10 is a device that integrates traditional ground receiving equipment and has data processing function.

[0070] During the flight of the aircraft, the signal strength of the transmission data between the aircraft and the receiving test device 10 will increase with the increase of the propagation distance, the aircraft may encounter the obstruction of mountains, buildings or other obstacles during the flight, and the transmission data may encounter various reflection and refraction phenomena during the transmission process, resulting in the natural attenuation of the transmission data. Therefore, the present application uses an attenuator 30 to simulate the attenuation of the signal during the actual flight process, multiplying the transmission data by a coefficient less than 1 to achieve attenuation, or adjusting the absorption characteristics of the semiconductor material by changing the bias voltage or current to change the attenuation amount, etc. The specific attenuation principle can be determined according to the type of attenuator 30. Further, the attenuation data is sent to the second airborne communication device 40 through the antenna on the first airborne communication device 20 and the antenna on the second airborne communication device 40, and the second airborne communication device 40 sends the attenuation data to the receiving test device 10, and the receiving test device 10 compares the sent transmission data with the received attenuation data to detect the relay function of the second airborne communication device 40.

[0071] The transmission data and the received attenuation data are compared to detect the relay function of the second airborne communication device 40, and the bit error rate, throughput, number of retransmissions, etc. may be determined based on the transmission data and the attenuation data.

[0072] Optionally, the transmitted data can be time-varying flight parameter data, for example, the real-time position of the aircraft (such as latitude, longitude and altitude), velocity vector (including Mach number and angle of attack), attitude information (such as roll angle, pitch angle and heading angle), airspeed, ground speed, vertical speed, wind speed and direction, external temperature, air pressure, humidity, turbulence conditions and weather radar data, etc.; it can also be collected audio and visual data, etc.

[0073] The attenuator 30 may be of different types, for example, an adjustable attenuator, a fixed attenuator, or both an adjustable attenuator and a fixed attenuator. The number of attenuators 30 may be one or more.

[0074] Optionally, the transmission data sent by the first airborne communication device 20 to the attenuator may be sent by the receiving test device 10 to the first airborne communication device 20 , or may be pre-stored by the first airborne communication device 20 .

[0075] In an embodiment of the present application, a relay function detection system includes a receiving test device, a first airborne communication device, an attenuator, and a second airborne communication device; the first airborne communication device is used to send transmission data to the attenuator; the attenuator is used to simulate the signal attenuation during data transmission to attenuate the transmission data, and send the attenuation data to the second airborne communication device through the antenna on the first airborne communication device; the second airborne communication device is used to send the attenuation data to the receiving test device; the receiving test device is used to detect the relay function of the second airborne communication device based on the transmission data and the attenuation data. The embodiment of the present application uses an attenuator to simulate the attenuation of data during transmission. It is not necessary to set the first airborne communication device and the second airborne communication device on the aircraft and the aerial platform, and the attenuation data during the actual flight process can be obtained. The relay function of the second airborne communication device is detected based on the transmission data and the attenuation data, which reduces the cost of relay function detection, and the implementation method is simple and easy to implement.

[0076] In an exemplary embodiment, as shown in FIG. 2 , the attenuator 30 includes an adjustable attenuator 301 ; the adjustable attenuator 301 is used to adjustably attenuate the signal strength of the transmission data based on the attenuation strength range of the adjustable attenuator 301 .

[0077] In this embodiment, the signal strength of the transmitted data can be adjusted to attenuate according to the distance between the aircraft and the receiving test equipment. Assuming that the attenuation strength range of the adjustable attenuator 301 is 0-10dB, on the one hand: the distance between the aircraft and the receiving test equipment and the attenuation strength can be in direct proportion, and the attenuation strength increases with the increase of the distance. On the other hand: since the attenuation of the signal strength may also be caused by other reasons, the attenuation strength can also be consistent within a distance range.

[0078] In the embodiment of the present application, the signal strength of the transmitted data is adjustable attenuated based on the attenuation strength range of the adjustable attenuator, which improves the flexibility of determining the attenuation data and better meets the actual needs of the attenuation data during the flight.

[0079] In an exemplary embodiment, as shown in FIG. 2 , the attenuator 30 includes a fixed attenuator 302 ; the fixed attenuator 302 is used to perform fixed attenuation on the signal strength of the transmission data based on the attenuation strength of the fixed attenuator 302 .

[0080] In this embodiment, the signal attenuation strength of the fixed attenuator 302 is fixed, for example, the signal attenuation strength of the fixed attenuator 302a is 20dB, the signal attenuation strength of the fixed attenuator 302b is 25dB, etc. The signal strength of the transmission data is attenuated based on the attenuation strength of 20dB of the fixed attenuator 302a.

[0081] Furthermore, since the attenuation strength range of the adjustable attenuator 301 is relatively small, the above-mentioned adjustable attenuator 301 and the fixed attenuator 302 can be combined, and the adjustable attenuation 301 can be used to perform adjustable attenuation on the basis of the fixed attenuator 302. For example, the attenuation strength range of the adjustable attenuator 301 is 0-5dB, and the attenuation strength of the fixed attenuator 302 is 20dB, then the signal attenuation strength of the transmission data can be adjusted within the range of 20-25dB.

[0082] Optionally, based on multiple fixed attenuators 302 and adjustable attenuators 301, corresponding attenuators can be selected in a targeted manner. For example, the attenuation strength range of the adjustable attenuator 301a is 0-5dB, the attenuation strength range of the adjustable attenuator 301b is 0-10dB, the attenuation strength of the fixed attenuator 302a is 20dB, the attenuation strength of the fixed attenuator 302b is 25dB, and the attenuation strength of the fixed attenuator 302c is 40dB. The adjustable attenuator 301 and the fixed attenuator 302 can be arbitrarily combined according to the actual simulation situation. The adjustable attenuator 301a and the fixed attenuator 302a can be combined to attenuate the signal strength, or the adjustable attenuator 301a, the fixed attenuator 302a and the fixed attenuator 302b can be combined to attenuate the signal strength of the transmitted data, so as to cover more signal attenuation situations.

[0083] In an exemplary embodiment, as shown in Figure 2, the receiving test device 10 is connected to the first airborne communication device 20 via a radio frequency cable 50, and the first airborne communication device 20 is connected to the attenuator 30 via a radio frequency cable 50; the first airborne communication device 20 is wirelessly connected to the second airborne communication device 40, and the second airborne communication device 40 is wirelessly connected to the receiving test device 10.

[0084] In this embodiment, the receiving test device 10 is connected to the first airborne communication device 20 via a radio frequency cable 50, and the first airborne communication device 20 is connected to the attenuator 30 via a radio frequency cable 50. The connection via the radio frequency cable 50 can ensure lossless transmission of the transmission data, and the connection via the radio frequency cable 50 can effectively reduce costs.

[0085] The wireless connection between the first airborne communication device 20 and the second airborne communication device 40, and the wireless connection between the second airborne communication device 40 and the receiving test device 10 are more in line with the long-distance wireless transmission during actual flight, making the transmission data and attenuation data more accurate.

[0086] In an exemplary embodiment, as shown in FIG. 2 , the receiving test device 10 includes a ground receiving device 101 and a data processing device 102. The ground receiving device 101 and the data processing device 102 are connected via a radio frequency cable 50. The ground receiving device 101 and the second airborne communication device 40 are wirelessly connected. The data processing device 102 and the first airborne communication device 20 are connected via a radio frequency cable 50. The ground receiving device 101 is used to receive the attenuation data sent by the second airborne communication device 40 and send the attenuation data to the data processing device 102. The data processing device 102 is used to detect the relay function of the second airborne communication device 40 based on the transmission data and the attenuation data.

[0087] In this embodiment, the receiving test equipment 10 includes a ground receiving equipment 101 and a data processing equipment 102. The ground receiving equipment 101 is wirelessly connected to the second airborne communication equipment 40. The second airborne communication equipment 40 sends the received attenuation data to the ground receiving equipment 101. The attenuation data received by the ground receiving equipment 101 is the data received during the simulated actual flight process.

[0088] The ground receiving device 101 and the data processing device 102 are connected via a radio frequency cable 50. After receiving the attenuation data, the ground receiving device 101 sends the attenuation data to the data processing device 102 via the radio frequency cable 50, thereby ensuring that the received attenuation data is effectively and accurately transmitted to the data processing device 102, so that the data processing device 102 determines the relay function of the second airborne communication device 40 based on the transmission data and the attenuation data.

[0089] In an exemplary embodiment, the data processing device is further configured to generate transmission data according to a preset algorithm, and send the transmission data to the first airborne communication device.

[0090] In this embodiment, the data processing device can generate transmission data according to a preset algorithm based on actual needs, and send the transmission data to the first airborne communication device. For example, interpolation and fitting algorithms can be used to generate transmission data based on known data using polynomial fitting, spline interpolation, etc.; or deep learning networks such as adversarial generative networks can be used to generate transmission data; and new text content and voice transmission data can be generated through natural language processing (NLP) and speech synthesis algorithms.

[0091] In an exemplary embodiment, the transmission data includes time-varying flight parameter data; the attenuation data includes attenuated time-varying flight parameter data obtained after attenuation processing of the time-varying flight parameter data; and the data processing device is used to determine the bit error rate based on the time-varying flight parameter data and the attenuated time-varying flight parameter data, so as to detect the relay function of the second airborne communication device based on the bit error rate.

[0092] Among them, time-varying flight parameter data refers to various flight parameters and dynamic data that change with time during the flight process. The time-varying flight parameter data type may include flight dynamics parameters, engine parameters, navigation parameters, instruction data, etc.

[0093] In this embodiment, the bits of the time-varying flight parameter data and the bits of the attenuated time-varying flight parameter data are compared one by one to determine the number of erroneous bits, and the bit error rate is determined based on the quotient of the number of erroneous bits and the total number of bits of the variable flight parameter data.

[0094] Optionally, if the bit error rate is less than a preset bit error rate, it is considered that the relay function of the second airborne communication device meets the relay requirements.

[0095] At present, the relay function detection of the communication equipment on the aerial platform is basically a rough qualitative detection, and no specific quantification is performed. For example, when the video data is relayed through the communication equipment on the aerial platform, the communication equipment on the aerial platform forwards the video data to the ground receiving equipment, and the ground receiving equipment displays the video data. Professional technicians observe whether the video is stuck or blurred to roughly determine whether the relay function of the aerial platform is qualified. In the embodiment of the present application, the bit error rate is determined according to the time-varying flight parameter data and the attenuated time-varying flight parameter data, so as to detect the relay function of the second airborne communication equipment according to the bit error rate, thereby avoiding the existing method that the technicians make subjective judgments based on the data transmitted to the ground receiving equipment, and using the objective data of the bit error rate for quantitative analysis, thereby improving the accuracy of the relay function detection of the second airborne communication equipment.

[0096] In an exemplary embodiment, the transmission data includes visual data; the attenuation data includes attenuated visual data obtained after attenuation processing of the visual data; and the data processing device is used to determine a normal display rate based on the visual data and the attenuated visual data, so as to detect the relay function of the second airborne communication device based on the normal display rate.

[0097] Among them, visual data may include video data, image data, etc.

[0098] In this embodiment, statistics of abnormal frames may be collected based on the visual data and the attenuated visual data, thereby obtaining a normal display rate.

[0099] Optionally, the normal display rate can also be determined based on multiple dimensions. For example, the received attenuated visual data can be decoded. If there is no error in the decoding process and the image format can be parsed normally, it is a normal display situation; the decoded attenuated data is rendered as an image, and it is checked whether there is obvious distortion, mosaic or other display problems. If there is no problem, it is a normal display situation; use image quality assessment methods (such as Peak signal-to-noise ratio (PSNR) and Structural Similarity (SSIM)) to compare the sent visual image with the rendered image after reception to quantify the image quality. If the image quality is greater than a preset quality threshold, it is a normal display situation; the sent visual data and the received attenuated visual data can also be compared pixel by pixel to check whether there is a difference at the pixel level. If the pixel difference is less than the preset pixel difference, it is a normal display situation.

[0100] Optionally, when the normal display rate is greater than the preset display rate, it is confirmed that the relay function of the second airborne communication device meets the relay requirements.

[0101] Furthermore, the visual data and time-varying flight parameter data can be combined, and the bit error rate and normal display rate can be combined to detect the relay function of the second airborne device. When both the combined rate and the bit error rate meet the requirements, it is determined that the relay function of the second airborne device meets the requirements.

[0102] In an embodiment of the present application, a normal display rate is determined based on visual data and attenuated visual data, so that the relay function of the second airborne communication device is detected based on the normal display rate, the accuracy of the detection is improved through objective data, and the detection of the relay function is made more complete.

[0103] In an exemplary embodiment, as shown in FIG3 , a relay function detection method is provided, which is described by taking the method applied to the receiving test device in FIG1 as an example, and includes the following S601 to S602. Wherein:

[0104] S601, receiving attenuation data sent by the second airborne communication device; the attenuation data is the attenuator used to simulate the signal attenuation in the data transmission process to attenuate the transmission data, and is sent to the second airborne communication device through the antenna on the first airborne communication device; the transmission data is sent by the first airborne communication device to the attenuator.

[0105] S602: Detect the relay function of the second airborne communication device according to the transmission data and the attenuation data.

[0106] In the above relay function detection method, the relay function of the second airborne communication device is detected by receiving the attenuation data sent by the second airborne communication device and based on the transmission data and the attenuation data.

[0107] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0108] Based on the same inventive concept, the embodiment of the present application also provides a relay function detection device for implementing the relay function detection method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more relay function detection device embodiments provided below can refer to the limitations of the relay function detection method above, and will not be repeated here.

[0109] In an exemplary embodiment, as shown in FIG4 , a relay function detection device is provided, including: a first receiving module 71 and a first detection module 72, wherein:

[0110] The first receiving module 71 is used to receive the attenuation data sent by the second airborne communication device; the attenuation data is the attenuator used to simulate the signal attenuation during the data transmission process to attenuate the transmission data, and is sent to the second airborne communication device through the antenna on the first airborne communication device; the transmission data is sent by the first airborne communication device to the attenuator;

[0111] The first detection module 72 is used to detect the relay function of the second airborne communication device according to the transmission data and the attenuation data.

[0112] In one embodiment, the relay function detection device further includes:

[0113] The second receiving module is used to receive the attenuation data sent by the second airborne communication device; the attenuation data is the attenuator used to simulate the signal attenuation in the data transmission process to attenuate the transmission data, and is sent to the second airborne communication device through the antenna on the first airborne communication device; the transmission data is sent by the first airborne communication device to the attenuator;

[0114] The second detection module is used to detect the relay function of the second airborne communication device according to the transmission data and the attenuation data.

[0115] Each module in the above relay function detection device can be implemented in whole or in part by software, hardware and a combination thereof. Each module can be embedded in or independent of the processor in the receiving test device in the form of hardware, or can be stored in the memory in the receiving test device in the form of software, so that the processor can call and execute the operations corresponding to each module above.

[0116] In an exemplary embodiment, a receiving test device is provided, which can be a server, and its internal structure diagram can be shown in Figure 5. The receiving test device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. Among them, the processor of the receiving test device is used to provide computing and control capabilities. The memory of the receiving test device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the receiving test device is used to store relevant data for relay function detection. The input / output interface of the receiving test device is used to exchange information between the processor and the external device. The communication interface of the receiving test device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a relay function detection method is implemented.

[0117] Those skilled in the art will understand that the structure shown in FIG. 5 is merely a block diagram of a partial structure related to the scheme of the present application, and does not constitute a limitation on the receiving test equipment to which the scheme of the present application is applied. The specific receiving test equipment may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0118] In an exemplary embodiment, a receiving test device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0119] receiving attenuation data sent by the second airborne communication device; the attenuation data is the attenuator used to simulate the signal attenuation in the data transmission process to attenuate the transmission data, and sent to the second airborne communication device through the antenna; the transmission data is sent by the first airborne communication device to the attenuator;

[0120] The relay function of the second airborne communication device is detected according to the transmission data and the attenuation data.

[0121] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0122] receiving attenuation data sent by the second airborne communication device; the attenuation data is the attenuator used to simulate the signal attenuation in the data transmission process to attenuate the transmission data, and is sent to the second airborne communication device through the antenna on the first airborne communication device; the transmission data is sent by the first airborne communication device to the attenuator;

[0123] The relay function of the second airborne communication device is detected according to the transmission data and the attenuation data.

[0124] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0125] receiving attenuation data sent by the second airborne communication device; the attenuation data is the attenuator used to simulate the signal attenuation in the data transmission process to attenuate the transmission data, and is sent to the second airborne communication device through the antenna on the first airborne communication device; the transmission data is sent by the first airborne communication device to the attenuator;

[0126] The relay function of the second airborne communication device is detected according to the transmission data and the attenuation data.

[0127] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0128] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0129] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0130] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A relay function detection system, characterized in that: The system comprises a receiving test device, a first airborne communication device, an attenuator and a second airborne communication device; the attenuator is connected in series with an antenna on the first airborne communication device; The first airborne communication device is used to send transmission data to the attenuator; The attenuator is used to simulate the signal attenuation during the data transmission process to perform attenuation processing on the transmission data, and send the attenuated data to the second airborne communication device through the antenna on the first airborne communication device; The second airborne communication device is used to send the attenuation data to the receiving test device; The receiving test device is used to detect the relay function of the second airborne communication device according to the transmission data and the attenuation data.

2. The system according to claim 1, characterized in that The attenuator comprises an adjustable attenuator; The adjustable attenuator is used to adjustably attenuate the signal strength of the transmission data based on the attenuation strength range of the adjustable attenuator.

3. The system according to claim 1 or 2, characterized in that: The attenuator comprises a fixed attenuator; The fixed attenuator is used to perform fixed attenuation on the signal strength of the transmission data based on the attenuation strength of the fixed attenuator.

4. The system according to claim 1, characterized in that The receiving test device is connected to the first airborne communication device via a radio frequency cable, and the first airborne communication device is connected to the attenuator via a radio frequency cable; The first airborne communication device is wirelessly connected to the second airborne communication device, and the second airborne communication device is wirelessly connected to the receiving test device.

5. The system according to claim 4, characterized in that The receiving test equipment includes a ground receiving device and a data processing device, wherein the ground receiving device and the data processing device are connected via a radio frequency cable, the ground receiving device and the second airborne communication device are wirelessly connected, and the data processing device and the first airborne communication device are connected via a radio frequency cable; The ground receiving device is used to receive the attenuation data sent by the second airborne communication device, and send the attenuation data to the data processing device; The data processing device is used to detect the relay function of the second airborne communication device according to the transmission data and the attenuation data.

6. The system according to claim 5, characterized in that The data processing device is further used to generate transmission data according to a preset algorithm and send the transmission data to the first airborne communication device.

7. The system according to claim 6, characterized in that The transmission data includes time-varying flight parameter data; the attenuation data includes attenuated time-varying flight parameter data obtained by attenuating the time-varying flight parameter data; The data processing device is used to determine the bit error rate based on the time-varying flight parameter data and the attenuated time-varying flight parameter data, so as to detect the relay function of the second airborne communication device according to the bit error rate.

8. The system according to claim 6 or 7, characterized in that: The transmission data includes visual data; the attenuation data includes attenuated visual data obtained by attenuating the visual data; The data processing device is used to determine a normal display rate according to the visual data and the attenuated visual data, so as to detect the relay function of the second airborne communication device according to the normal display rate.

9. A relay function detection method, characterized in that: The method is applied to a receiving test device of a relay function detection system according to any one of claims 1 to 8, and the method comprises: receiving attenuation data sent by the second airborne communication device; the attenuation data is used by the attenuator to simulate the signal attenuation in the data transmission process to attenuate the transmission data, and is sent to the second airborne communication device through the antenna on the first airborne communication device; the transmission data is sent by the first airborne communication device to the attenuator; The relay function of the second airborne communication device is detected according to the transmission data and the attenuation data.

10. A receiving test device, comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to claim 9 are implemented.

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