Airspace wireless signal quality detection method, system and device and medium

Abstract

The invention provides an airspace wireless signal quality detection method, system and device and a medium, and the method comprises the steps: a measurement task scheduling module receives an airspace detection task issued by a multi-mode sensing service platform, and issues a measurement task and a positioning task to a low-altitude communication module and a 3D positioning sensing device according to the airspace detection task; the low-altitude communication module performs airspace wireless signal quality detection according to the measurement task to obtain corresponding detection data; the 3D positioning sensing device detects the position information of the flight detector according to the positioning task; and the measurement task scheduling module sends the detection data and the position information to the multi-mode sensing service middle station. According to the method, the system, the device and the medium, the problem that two-dimensional data cannot continuously and completely reflect cell switching and coverage fluctuation conditions of low-altitude coverage during height change due to the fact that an existing airspace wireless signal quality detection method usually depends on an unmanned aerial vehicle for testing at a fixed height and a preset route path can be solved.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and particularly to a method, system, device and medium for detecting the quality of airspace wireless signals. Background Art

[0002] The low-altitude economy has entered a period of rapid growth, and the demand for reliable communication in the airspace is becoming increasingly urgent. Currently, the airspace communication coverage faces many challenges, and a complete airspace coverage test is required to prove the accuracy of the airspace coverage planning and construction. A detection method for highly reliably obtaining the longitude, latitude, and altitude of sampling points is very necessary.

[0003] However, the existing methods for detecting the quality of airspace wireless signals mainly have the following problems: They follow the traditional ground road test method, with a high dependence on manual settings of the test terminal, and usually rely on drones to conduct tests at a fixed altitude and along a preset flight path. The two-dimensional plane test results obtained by this method or their superimposed results cannot continuously and completely reflect the cell handover and coverage fluctuation situations during altitude changes in low-altitude coverage. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a method, system, device and medium for detecting the quality of airspace wireless signals in view of the above deficiencies of the prior art, so as to solve the problem that the existing methods for detecting the quality of airspace wireless signals usually rely on drones to conduct tests at a fixed altitude and along a preset flight path, resulting in the inability of two-dimensional data to continuously and completely reflect the cell handover and coverage fluctuation situations during altitude changes in low-altitude coverage.

[0005] In a first aspect, the present invention provides a method for detecting the quality of airspace wireless signals, which is applied to a flight detector. The flight detector includes a measurement task scheduling module, a low-altitude communication module, and a three-dimensional (3D) positioning sensing device. The method includes:

[0006] The measurement task scheduling module receives an airspace detection task issued by a multi-mode perception service middle platform, and issues a measurement task and a positioning task to the low-altitude communication module and the 3D positioning sensing device respectively according to the airspace detection task;

[0007] The low-altitude communication module conducts airspace wireless signal quality detection according to the measurement task to obtain corresponding detection data;

[0008] The 3D positioning sensing device detects the position information of the flight detector according to the positioning task;

[0009] The measurement task scheduling module sends the detection data and the position information to the multi-mode perception service middle platform, so that the multi-mode perception service middle platform analyzes the detection data and the position information to generate airspace coverage three-dimensional layer data.

[0010] Further, the low-altitude communication module performs airspace radio signal quality detection according to the measurement task, and obtains corresponding detection data, specifically including:

[0011] The low-altitude communication module scans the wireless environment according to the measurement task, obtains frequency points, cell numbers, reference signal received power (RSRP), signal-to-interference-plus-noise ratio (SINR), and physical cell identifier (PCI), and completes the access to the base station.

[0012] The low-altitude communication module initiates test execution, performs airspace radio signal quality detection, records cell handover and coverage fluctuation events, and obtains corresponding detection data.

[0013] Further, the airspace detection task includes airspace coverage test and uplink / downlink rate test. The uplink / downlink rate test is used to record the information transmission speed when the flight detector uploads and downloads data on the basis of the airspace coverage test.

[0014] Further, the 3D positioning sensing device detects the position information of the flight detector according to the positioning task, specifically including:

[0015] The 3D positioning sensing device uses the Global Navigation Satellite System (GNSS) and relative pressure sensor to detect the position information of the flight detector.

[0016] Further, the low-altitude communication module adopts Internet of Things technology to achieve airspace radio signal quality detection under low power consumption.

[0017] In a second aspect, the present invention provides an airspace radio signal quality detection method, which is applied to a multi-modal perception service middle platform. The method includes:

[0018] Sending an airspace detection task to the flight detector, so that the measurement task scheduling module in the flight detector sends a measurement task and a positioning task to the low-altitude communication module and the three-dimensional (3D) positioning sensing device in the flight detector respectively according to the airspace detection task, and the low-altitude communication module performs airspace radio signal quality detection according to the measurement task to obtain corresponding detection data; at the same time, the 3D positioning sensing device detects the position information of the flight detector according to the positioning task; wherein, the flight detector includes the measurement task scheduling module, the low-altitude communication module and the 3D positioning sensing device;

[0019] Receiving the detection data and position information sent by the flight detector;

[0020] Performing data analysis on the detection data and position information to generate airspace coverage three-dimensional layer data.

[0021] Further, the method further includes:

[0022] After the integrated receiving and sensing transceiver device uses millimeter waves to periodically detect the airspace coordinate information of the flight detector, the sent airspace coordinate information;

[0023] Performing data analysis on the detection data and position information to generate airspace coverage three-dimensional layer data, specifically including:

[0024] Matching and proofreading the detection data, position information, and the airspace coordinate information to obtain corresponding measurement dotting information;

[0025] Generating the airspace coverage three-dimensional layer data according to the measurement dotting information.

[0026] Furthermore, the airspace detection task includes airspace coverage testing and uplink / downlink rate testing. The uplink / downlink rate testing is used to record the information transmission speed when the flight detector uploads and downloads data on the basis of airspace coverage testing;

[0027] The low-altitude communication module adopts Internet of Things technology to achieve airspace wireless signal quality detection under low power consumption.

[0028] In a third aspect, an embodiment of the present invention provides an airspace wireless signal quality detection system, including a flight detector and a multi-mode perception service middle platform;

[0029] The flight detector is used to execute the airspace wireless signal quality detection method described in the first aspect;

[0030] The multi-mode perception service middle platform is used to execute the airspace wireless signal quality detection method described in the second aspect.

[0031] In a fourth aspect, the present invention provides an airspace wireless signal quality detection device, including a memory and a processor. A computer program is stored in the memory, and the processor is configured to run the computer program to implement the airspace wireless signal quality detection method described in the above first aspect or second aspect.

[0032] In a fifth aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the airspace wireless signal quality detection method described in the above first aspect or second aspect.

[0033] The airspace radio signal quality detection method, system, device and medium provided by the present invention. First, the measurement task scheduling module in the flight detector receives the airspace detection task issued by the multi-mode perception service middle platform, and issues a measurement task and a positioning task to the low-altitude communication module and the 3D positioning sensing device respectively according to the airspace detection task; wherein, the flight detector includes a measurement task scheduling module, a low-altitude communication module and a 3D positioning sensing device; then, the low-altitude communication module performs airspace radio signal quality detection according to the measurement task to obtain corresponding detection data; the 3D positioning sensing device detects the position information of the flight detector according to the positioning task; finally, the measurement task scheduling module sends the detection data and the position information to the multi-mode perception service middle platform, so that the multi-mode perception service middle platform performs data analysis on the detection data and the position information to generate airspace coverage three-dimensional layer data. The present invention realizes the dynamic detection and precise positioning of airspace radio signal quality by integrating measurement task scheduling, low-altitude communication module and 3D positioning sensing technology, can continuously and completely capture the signal fluctuation and cell handover situation of low-altitude coverage at different heights, and provides strong support for generating accurate airspace coverage three-dimensional layer data. At the same time, the test efficiency is improved through automatic task distribution and execution. It solves the problem that the existing airspace radio signal quality detection methods usually rely on drones to test at a fixed height and a preset flight path, resulting in two-dimensional data unable to continuously and completely reflect the cell handover and coverage fluctuation situations of low-altitude coverage when the height changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a flowchart of an airspace radio signal quality detection method according to Embodiment 1 of the present invention;

[0035] Figure 2 It is a schematic structural diagram of an airspace radio signal quality detection system according to Embodiment 1 of the present invention;

[0036] Figure 3 It is a flowchart of an airspace radio signal quality detection method according to Embodiment 2 of the present invention;

[0037] Figure 4 It is a schematic structural diagram of an airspace radio signal quality detection system according to Embodiment 3 of the present invention;

[0038] Figure 5 It is a schematic structural diagram of an airspace radio signal quality detection device according to Embodiment 4 of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] To enable those skilled in the art to better understand the technical solutions of the present invention, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0040] It is understood that the specific embodiments and drawings described herein are only for explaining the present invention, rather than limiting the present invention.

[0041] It is understood that, without conflict, the various embodiments in the present invention and the various features in the embodiments may be combined with each other.

[0042] It is understood that for the convenience of description, only the parts related to the present invention are shown in the drawings of the present invention, and the parts unrelated to the present invention are not shown in the drawings.

[0043] It is understood that each unit and module involved in the embodiments of the present invention may correspond to only one entity structure, or may be composed of multiple entity structures, or multiple units and modules may also be integrated into one entity structure.

[0044] It is understood that the terms "first", "second", etc. in the embodiments of the present invention are used to distinguish different objects, or to distinguish different processes for the same object, rather than to describe the specific order of the objects.

[0045] It is understood that, without conflict, the functions and steps marked in the flowcharts and block diagrams of the present invention may occur in a different order from that marked in the drawings.

[0046] It is understood that in the flowcharts and block diagrams of the present invention, the possible architectures, functions, and operations of the systems, devices, equipment, and methods according to the various embodiments of the present invention are shown. Among them, each block in the flowchart or block diagram may represent a unit, module, program segment, or code, which contains executable instructions for implementing the specified function. Moreover, each block or combination of blocks in the block diagram and flowchart may be implemented by a hardware-based system for implementing the specified function, or by a combination of hardware and computer instructions.

[0047] It is understood that the units and modules involved in the embodiments of the present invention may be implemented in software or in hardware. For example, the units and modules may be located in the processor.

[0048] Embodiment 1:

[0049] This embodiment provides a method for detecting the quality of airspace radio signals, which is applied to a flight detector. The flight detector includes a measurement task scheduling module, a low-altitude communication module, and a 3D (Three-Dimensional) positioning sensing device. As Figure 1 shown, this method includes:

[0050] Step S101: The measurement task scheduling module receives the airspace detection task sent by the multi-modal perception service middle platform, and respectively sends the measurement task and the positioning task to the low-altitude communication module and the 3D positioning sensing device according to the airspace detection task.

[0051] In this embodiment, the flight detector has the ability to fly in the airspace below 1000 meters above the ground, and includes a measurement task scheduling module, a low-altitude communication module, and a 3D positioning sensing device. When the multi-modal perception service middle platform sends an airspace detection task to the flight detector, the measurement task scheduling module receives the sent airspace detection task and parses it. Then, the measurement task scheduling module respectively sends the measurement task and the positioning task to the low-altitude communication module and the 3D positioning sensing device according to the airspace detection task.

[0052] It should be noted that the multi-modal perception service middle platform accesses the flight detector through a wireless network, and can select a single or multiple flight detectors in the middle platform to send airspace detection tasks. Among them, the measurement task scheduling module of the flight detector accesses the multi-modal perception service middle platform through the network connection function of the low-altitude communication module to parse the content of the airspace detection task.

[0053] Step S102: The low-altitude communication module performs airspace wireless signal quality detection according to the measurement task, and obtains corresponding detection data.

[0054] In this embodiment, during the execution of the detection task, the detection ability of the low-altitude communication module for signals is reused to realize the detection of airspace wireless signal quality.

[0055] Optionally, the low-altitude communication module performs airspace wireless signal quality detection according to the measurement task, and obtains corresponding detection data, specifically including:

[0056] The low-altitude communication module scans the wireless environment according to the measurement task, obtains the frequency point, cell number, reference signal receiving power RSRP (Reference Signal Receiving Power), SINR (Signal-to-Interference plus Noise Ratio), and PCI (Physical Cell Identifier), and completes the access of the base station;

[0057] The low-altitude communication module initiates test execution, performs airspace wireless signal quality detection, records cell handover and coverage fluctuation events, and obtains corresponding detection data.

[0058] In this embodiment, the low-altitude communication module scans the wireless environment according to the measurement task, including the scanning and analysis of systems such as 2G / 3G / 4G / 5G, obtains information such as frequency points, cell numbers, RSRP, SINR, PCI, etc., and accesses the base station to initiate test execution, such as data upload and download, records situations such as cell handover and coverage fluctuation, and obtains corresponding detection data.

[0059] Optionally, the airspace detection task includes airspace coverage test and uplink / downlink rate test. The uplink / downlink rate test is used to record the information transmission speed when the flight detector uploads and downloads data on the basis of the airspace coverage test.

[0060] In this embodiment, the airspace detection task includes airspace coverage test and uplink / downlink rate test. The airspace coverage test can obtain frequency points, cell numbers, RSRP, SINR, PCI, record the interaction signaling between the flight detector and the ground communication station, and the uplink / downlink rate test performs data upload and download tasks on the basis of the airspace coverage test, and timely records the information transmission speed when the flight detector uploads and downloads data.

[0061] Step S103: The 3D positioning and sensing device detects the position information of the flight detector according to the positioning task.

[0062] Specifically, the 3D positioning and sensing device uses GNSS (Global Navigation Satellite System) and relative pressure sensors to detect the position information of the flight detector.

[0063] In this embodiment, the 3D positioning and sensing device uses integrated modules such as GNSS and relative pressure sensors to report the position information of the flight detector.

[0064] Optionally, the low-altitude communication module adopts Internet of Things technology to achieve the detection of airspace wireless signal quality under low power consumption.

[0065] In this embodiment, in order to achieve the detection of the airspace radio signal quality under low power consumption, the low-altitude communication module adopts Internet of Things technology. Specifically, the low-altitude communication module can adopt the 5G-A RedCap technology in the Internet of Things technology, that is, the 5G evolved lightweight (reduced capability) technology, to achieve the detection of the airspace radio signal quality under low power consumption. Among them, "5G-A" is the abbreviation of "5G Advanced", which means "5G evolved", representing an advanced version of 5G technology; "RedCap" is the abbreviation of "Reduced Capability", which means "reduced capability" and is often translated as "lightweight" in the communication field. Selecting the 5G-A RedCap technology for application in the low-altitude communication module helps to extend the battery life of the low-altitude communication device, reduce the operating cost, improve the stability and reliability of the device, and enable the low-altitude communication module to operate in a more efficient and energy-saving manner when performing tasks such as frequency point scanning, frequency locking and switching testing, and data uploading and downloading, and better meet the requirements of the low-altitude environment and detection tasks.

[0066] It should be noted that in the existing methods for detecting the airspace radio signal quality, the flight of the unmanned aerial vehicle is greatly affected by the load and battery energy consumption, and the duration of the airspace communication quality detection cannot be guaranteed, resulting in poor efficiency and effect. The present invention flexibly uses an Internet of Things module (i.e., a low-altitude communication module based on Internet of Things technology) for low-power data collection, which can not only complete the detection task but also greatly reduce the power consumption and extend the flight time.

[0067] Step S104: The measurement task scheduling module sends the detection data and location information to the multi-modal perception service center, so that the multi-modal perception service center analyzes the detection data and location information to generate airspace coverage three-dimensional layer data.

[0068] In this embodiment, the multi-modal perception service center can control the flight direction of the flight detector in real time, or can preset the flight trajectory before the execution of the test task. That is, the multi-modal perception service center can flexibly adjust the height of the flight detector according to the needs of signal detection to obtain signal information at different height layers, so as to perform signal detection more comprehensively and accurately. The flight detector continuously collects data at different heights to obtain corresponding detection data and location information, and sends them to the multi-modal perception service center. The multi-modal perception service center analyzes the received detection data and location information to generate airspace coverage three-dimensional layer data.

[0069] In an optional embodiment, the multi-mode perception service middleware receives the airspace coordinate information sent by the communication-sensing integrated transceiver device after periodically detecting the airspace coordinate information of the flight detector using millimeter waves; and matches and proofreads the detection data, position information, and the airspace coordinate information to obtain corresponding measurement dotting information; the multi-mode perception service middleware then generates the airspace coverage three-dimensional layer data according to the measurement dotting information. Among them, matching and proofreading the detection data, position information, and the airspace coordinate information means aligning the detection data, position information, and airspace coordinate information according to the timestamp to generate calibrated measurement dotting information. Specifically, the multi-mode perception service middleware will read the sampling time (i.e., the timestamp) of the GNSS, relative barometric pressure sensor information of the 3D positioning sensing device, and the airspace coordinate information of the communication-sensing integrated transceiver device, and the two data are mutually supplemented according to the sampling time, so as to obtain accurate measurement dotting information, enabling the multi-mode perception service middleware to restore the communication coverage of the low-altitude three-dimensional area.

[0070] It should be noted that the 3D positioning sensing device obtains the active positioning data of the flight detector, and the communication-sensing integrated transceiver device obtains the passive monitoring positioning data of the flight detector. The two data can be mutually supplemented in the case of climate change and building blockage, making the positioning data more accurate.

[0071] It should be noted that the existing airspace radio signal quality detection methods often collect data in batches at a fixed height, and there are problems such as inability to collect on a large scale and difficulty in optimizing the communication network in a timely manner. The flight detector in the present invention can flexibly change its height for detection in the airspace below 1000 meters. After being processed by the multi-mode perception service middleware, it can generate airspace coverage three-dimensional layer data, comprehensively presenting the signal condition, and providing strong support for optimizing the communication network.

[0072] In a specific embodiment, the airspace radio signal quality detection method is applied to an airspace radio signal quality detection system. In order to efficiently obtain the radio signal quality situation in the airspace scenario, the system adopts a combination of low-power detection devices and ground communication-sensing integrated transceiver devices to collect airspace communication coverage information, and deploys a multi-mode perception service middleware to comprehensively solve the test task scheduling and the processing and analysis of detection data.

[0073] Such as Figure 2As shown in the figure, the airspace radio signal quality detection system includes: a flight detector responsible for detecting the radio signal quality in the low altitude, a communication and sensing integrated transceiver device, and a multi-mode perception service middle platform; among them, the flight detector has the ability to fly in the airspace below 1000 meters perpendicular to the ground, and includes a measurement task scheduling module, a low-altitude communication module, and a 3D positioning sensing device. The multi-mode perception service middle platform is used to send radio signal quality detection tasks (i.e., airspace detection tasks) to the flight detector; the communication and sensing integrated transceiver device is a radio frequency multi-array antenna integrated base station with 5G communication relay and radar detection functions, which is used to periodically detect the airspace coordinate information of the flight detector and transmit the data back to the multi-mode perception service middle platform (for improving the positioning accuracy); this system uses a 3D positioning sensing device and a communication and sensing integrated transceiver device to accurately locate the airspace coordinate information, and can flexibly use different communication modules for data collection and signal detection according to needs. This system matches and proofreads the measured information with various position information to obtain accurate measurement dotting information, so that the multi-mode perception service middle platform can restore the communication coverage of the low-altitude three-dimensional area.

[0074] It should be noted that the multi-mode in the multi-mode perception service middle platform refers to a more flexible deployment method and a wider data processing ability. It can be deployed in the cloud or locally, and its core functions are data storage, processing, and sending.

[0075] It should be noted that the flight detector and the multi-mode perception service middle platform need to relay signals through a communication base station, and the main function of the communication and sensing integrated transceiver device (which can be understood as a base station integrating communication and radar) is to supplement the positioning through millimeter waves, but it also has a communication function and the ability to relay signals. For example, when the flight detector is far from the multi-mode perception service middle platform, or the flight detector flies to a remote area or is blocked by high-rise buildings, resulting in weak base station signals. At this time, the communication and sensing integrated transceiver device can act as a relay station to help the flight detector transmit signals, ensure that the data can be transmitted smoothly, and prevent communication interruption.

[0076] It should be noted that the 3D positioning sensing device of the flight detector can locate independently, and the purpose of the communication and sensing integrated transceiver device to periodically detect the airspace coordinate information of the flight detector is to supplement and calibrate the accuracy, that is, the two complement each other. Due to the influence of buildings, clouds, climate change, etc. on airspace coverage, the 3D positioning data may fluctuate. The communication and sensing integrated device actively detects the airspace coordinates through a millimeter wave radar. With strong signal penetration, it can avoid coordinate loss in scenarios blocked by buildings and vegetation; while the 3D positioning sensing device of the flight detector is prone to failure due to building blockage. After the data of the two are fused, high-precision positioning under complex terrains is achieved through complementary advantages.

[0077] Based on Figure 2The airspace wireless signal quality detection system shown in the figure, the airspace wireless signal quality detection method may include the following steps:

[0078] (1) The multi-mode sensing service center accesses the flight detector through the wireless network and can select one or more flight detectors to issue airspace detection tasks.

[0079] Among them, the airspace detection tasks include coverage test (i.e. airspace coverage test) and rate test (i.e. uplink and downlink rate test), which are dispatched by the multi-mode perception service center, and the task data is recorded and transmitted back in the flight detector and the integrated transceiver.

[0080] It should be noted that the coverage test (airspace coverage test) and rate test (uplink and downlink rate test) include air position sampling, obtaining frequency, cell number, RSRP, SINR, PCI, and the multi-mode sensing service center provides server functions. The flight detector performs data upload and download tasks and records its rate data. That is, the coverage test can obtain the frequency, cell number, RSRP, SINR, PCI, and record the interactive signaling between the flight detector and the ground communication station. The rate test, based on the coverage test, records the information transmission speed of the flight detector when uploading and downloading data.

[0081] Among them, the flight detector is composed of a measurement task scheduling module, a low-altitude communication module and a 3D positioning sensor device. The measurement task scheduling module accesses the multi-mode perception service platform through the network connection function of the low-altitude communication module to parse the test task content. During the execution of the detection task, the communication capability of the low-altitude communication module is reused to perform frequency scanning (2G / 3G / 4G / 5G), frequency lock switching test and data upload and download services. The low-altitude communication module can choose the Internet of Things technology (such as 5G-A's RedCap technology) to achieve low power consumption. The 3D positioning sensor device uses integrated modules such as GNSS and relative air pressure sensors to report the location information of the flight detector. At the same time, the integrated transceiver uses millimeter wave detection to synchronously periodically detect the aerial position of the flight detector to improve the integrity of the flight detector's position data in the airspace.

[0082] (2) The flight detector receives the airspace detection task issued by the multi-mode perception service center, starts the measurement task according to the task requirements, and the 3D positioning sensor and equipment synchronously record the precise location during the measurement process. Finally, the measurement data (i.e. detection data) and location information are sent back to the multi-mode perception service center.

[0083] Specifically, when the measurement task is started, the flight detector first reads the measurement task and schedules the low-altitude communication module. The low-altitude communication module scans the wireless environment, including the scanning and analysis of 2G / 3G / 4G / 5G and other systems, obtains information such as frequency points, cell numbers, RSRP, SINR, PCI, and the software version support of the wireless base station (referring to the surrounding cellular network base stations or communication and sensing integrated transceiver devices scanned by the flight detector at present, that is, the specific service base station when sending communication), and accesses and initiates the test execution, such as data upload and download, and records situations such as cell handover and coverage fluctuation.

[0084] Specifically, the positioning process is executed synchronously with the test process. The positioning task is triggered by the measurement task scheduling module. The 3D positioning sensing device uses integrated modules such as GNSS and relative pressure sensors to report the position information of the flight detector. At the same time, the communication and sensing integrated transceiver device uses millimeter-wave detection to synchronously detect the aerial position of the flight detector in a cycle, improving the integrity of the airspace position data of the flight detector.

[0085] It should be noted that the communication and sensing integrated transceiver device includes communication and sensing functions. The communication is in the 3.5 GHz band, and the sensing is in the millimeter-wave radar band.

[0086] (3) The multi-mode sensing service middle platform receives the detected signal information and position information, conducts data analysis, generates three-dimensional layer data of airspace coverage, and assists in the supplement and optimization of airspace coverage base stations.

[0087] Optionally, the multi-mode sensing service middle platform can obtain accurate measurement marking information by matching and proofreading the measured information and various position information. The steps of proofreading include: ① Reading the sampling time of the GNSS and relative pressure sensor information of the 3D positioning sensing device and the positioning measurement information of the communication and sensing integrated transceiver device, ② Analyzing the missing sampling time, ③ If the data of the 3D positioning sensing device is missing, supplementing the positioning measurement information of the communication and sensing integrated transceiver device according to the time period, and the two data are supplemented with each other according to time.

[0088] It should be noted that the present invention can realize the signal detection of timely height change. The multi-mode sensing service middle platform can control the flight direction of the flight detector in real time, or can preset the flight trajectory before the execution of the test task.

[0089] It should be noted that the airspace radio signal quality detection method provided by the present invention has the following beneficial effects:

[0090] a) Flexibly adopt the Internet of Things module (that is, the low-altitude communication module based on Internet of Things technology) for low-power data acquisition, especially reusing the signal detection ability of the communication module, further reducing the cost;

[0091] b) By matching and proofreading the measured information with various location information, accurate measurement dot information is obtained, enabling the multi-mode perception service middle platform to restore the real airspace cell coverage situation;

[0092] c) Through the unified supervision, task configuration, and data analysis functions of the multi-mode perception service middle platform, the efficient implementation of the periodic detection of the airspace radio signal quality is strongly guaranteed, the continuous optimization of the detection effect is realized, and the airspace communication coverage situation can be restored more accurately.

[0093] The airspace radio signal quality detection method provided by the embodiment of the present invention, first, the measurement task scheduling module in the flight detector receives the airspace detection task sent by the multi-mode perception service middle platform, and issues a measurement task and a positioning task to the low-altitude communication module and the 3D positioning sensing device respectively according to the airspace detection task; wherein, the flight detector includes a measurement task scheduling module, a low-altitude communication module, and a 3D positioning sensing device; then, the low-altitude communication module performs airspace radio signal quality detection according to the measurement task to obtain corresponding detection data; the 3D positioning sensing device detects the position information of the flight detector according to the positioning task; finally, the measurement task scheduling module sends the detection data and the position information to the multi-mode perception service middle platform, so that the multi-mode perception service middle platform performs data analysis on the detection data and the position information to generate airspace coverage three-dimensional layer data. The present invention realizes the dynamic detection and precise positioning of the airspace radio signal quality by integrating measurement task scheduling, low-altitude communication module, and 3D positioning sensing technology, can continuously and completely capture the signal fluctuations and cell handovers of low-altitude coverage at different heights, and provides strong support for generating accurate airspace coverage three-dimensional layer data. At the same time, the test efficiency is improved through automated task dispatching and execution. It solves the problem that the existing airspace radio signal quality detection methods usually rely on drones to perform tests at fixed heights and preset flight paths, resulting in two-dimensional data being unable to continuously and completely reflect the cell handovers and coverage fluctuations of low-altitude coverage when the height changes.

[0094] Embodiment 2:

[0095] As Figure 3 shown, this embodiment provides an airspace radio signal quality detection method applied to a multi-mode perception service middle platform, and the method includes:

[0096] Step S201: Send an airspace detection task to the flight detector, so that the measurement task scheduling module in the flight detector sends a measurement task and a positioning task to the low-altitude communication module and the three-dimensional (3D) positioning sensing device in the flight detector respectively according to the airspace detection task, and the low-altitude communication module performs airspace radio signal quality detection according to the measurement task to obtain corresponding detection data; at the same time, the 3D positioning sensing device detects the position information of the flight detector according to the positioning task; wherein, the flight detector includes the measurement task scheduling module, the low-altitude communication module and the 3D positioning sensing device.

[0097] In this embodiment, the flight detector has the ability to fly in the airspace below 1000 meters perpendicular to the ground, and includes a measurement task scheduling module, a low-altitude communication module and a 3D positioning sensing device. The multi-modal perception service middle platform accesses the flight detector through a wireless network, and can select a single or multiple flight detectors in the middle platform to send an airspace detection task.

[0098] Step S202: Receive the detection data and position information sent by the flight detector;

[0099] Step S203: Perform data analysis on the detection data and position information to generate airspace coverage three-dimensional layer data.

[0100] In this embodiment, the flight detector continuously collects data at different heights to obtain corresponding detection data and position information, and sends them to the multi-modal perception service middle platform. The multi-modal perception service middle platform performs data analysis on the received detection data and position information to generate airspace coverage three-dimensional layer data.

[0101] Optionally, the method further includes:

[0102] Receive the airspace coordinate information sent by the communication and sensing integrated transceiver device after periodically detecting the airspace coordinate information of the flight detector using millimeter waves;

[0103] The performing data analysis on the detection data and position information to generate airspace coverage three-dimensional layer data specifically includes:

[0104] Match and proofread the detection data, position information and the airspace coordinate information to obtain corresponding measurement dotting information;

[0105] Generate the airspace coverage three-dimensional layer data according to the measurement dotting information.

[0106] In this embodiment, the detection data, location information, and airspace coordinate information are matched and verified, that is, the detection data, location information, and airspace coordinate information are aligned according to the timestamp to generate calibrated measurement dotting information. Specifically, the multi-modal perception service middle platform will read the sampling time (i.e., the timestamp) of the GNSS, relative barometric pressure sensor information of the 3D positioning and sensing device, and the airspace coordinate information of the communication-sensing integrated transceiver device. The two sets of data are complemented with each other according to the sampling time, so as to obtain accurate measurement dotting information, enabling the multi-modal perception service middle platform to restore the communication coverage of the low-altitude three-dimensional area.

[0107] Optionally, the airspace detection task includes airspace coverage testing and uplink / downlink rate testing. The uplink / downlink rate testing is used to record the information transmission speed when the flight detector uploads and downloads data on the basis of the airspace coverage testing.

[0108] The low-altitude communication module adopts Internet of Things technology to realize the detection of airspace radio signal quality under low power consumption.

[0109] In this embodiment, the airspace detection task includes airspace coverage testing and uplink / downlink rate testing. The airspace coverage testing can obtain the frequency point, cell number, RSRP, SINR, PCI, and record the interaction signaling between the flight detector and the ground communication station. The uplink / downlink rate testing performs data upload and download tasks on the basis of the airspace coverage testing and timely records the information transmission speed when the flight detector uploads and downloads data.

[0110] In this embodiment, in order to realize the detection of airspace radio signal quality under low power consumption, the low-altitude communication module adopts Internet of Things technology. Specifically, the low-altitude communication module can adopt the 5G-A RedCap technology in Internet of Things technology.

[0111] Embodiment 3:

[0112] Reference Figure 4 , this embodiment provides an airspace radio signal quality detection system, including a flight detector 11 and a multi-modal perception service middle platform 12;

[0113] The flight detector 11 is used to execute the airspace radio signal quality detection method in Embodiment 1;

[0114] The multi-modal perception service middle platform 12 is used to execute the airspace radio signal quality detection method in Embodiment 2.

[0115] Optionally, the system further includes a communication-sensing integrated transceiver device;

[0116] The communication-sensing integrated transceiver device is used to periodically detect the airspace coordinate information of the flight detector by using millimeter waves and send the airspace coordinate information to the multi-modal perception service middle platform 12.

[0117] Example 4:

[0118] Reference Figure 5 , this embodiment provides an airspace radio signal quality detection device, including a memory 21 and a processor 22. A computer program is stored in the memory 21, and the processor 22 is configured to run the computer program to execute the airspace radio signal quality detection method in Embodiment 1 or Embodiment 2.

[0119] Among them, the memory 21 is connected to the processor 22. The memory 21 can be a flash memory or a read-only memory or other memories, and the processor 22 can be a central processing unit or a single-chip microcomputer.

[0120] Example 5:

[0121] This embodiment provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, it implements the airspace radio signal quality detection method in Embodiment 1 or Embodiment 2 above.

[0122] The computer-readable storage medium includes volatile or non-volatile, removable or non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, computer program modules, or other data). The computer-readable storage medium includes, but is not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), flash memory or other memory technologies, CD-ROM (Compact Disc Read-Only Memory), digital versatile disc (DVD) or other optical disc storage, magnetic cassette, tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer.

[0123] In summary, the airspace wireless signal quality detection method, system, device, and medium provided by the embodiments of the present invention are as follows. First, the measurement task scheduling module in the flight detector receives the airspace detection task issued by the multi-mode perception service middle platform, and issues a measurement task and a positioning task to the low-altitude communication module and the 3D positioning sensing device respectively according to the airspace detection task. The flight detector includes a measurement task scheduling module, a low-altitude communication module, and a 3D positioning sensing device. Then, the low-altitude communication module performs airspace wireless signal quality detection according to the measurement task to obtain corresponding detection data. The 3D positioning sensing device detects the position information of the flight detector according to the positioning task. Finally, the measurement task scheduling module sends the detection data and the position information to the multi-mode perception service middle platform, so that the multi-mode perception service middle platform performs data analysis on the detection data and the position information to generate airspace coverage three-dimensional layer data. By integrating measurement task scheduling, low-altitude communication module, and 3D positioning sensing technology, the present invention realizes the dynamic detection and precise positioning of airspace wireless signal quality, can continuously and completely capture the signal fluctuations and cell handovers of low-altitude coverage at different heights, and provides strong support for generating accurate airspace coverage three-dimensional layer data. At the same time, through automatic task dispatching and execution, the test efficiency is improved. It solves the problem that the existing airspace wireless signal quality detection methods usually rely on drones to perform tests at fixed heights and preset flight paths, resulting in two-dimensional data being unable to continuously and completely reflect the cell handovers and coverage fluctuations of low-altitude coverage when the height changes.

[0124] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims

1. A method for detecting airspace wireless signal quality, characterized in that: Applied to a flight detector, the flight detector includes a measurement task scheduling module, a low-altitude communication module and a three-dimensional 3D positioning sensor device, and the method includes: The measurement task scheduling module receives the airspace detection task issued by the multi-mode perception service center, and issues the measurement task and positioning task to the low-altitude communication module and the 3D positioning sensor device respectively according to the airspace detection task; The low-altitude communication module performs airspace wireless signal quality detection according to the measurement task to obtain corresponding detection data; The 3D positioning sensor device detects the position information of the flying detector according to the positioning task; The measurement task scheduling module sends the detection data and location information to the multi-mode perception service center, so that the multi-mode perception service center performs data analysis on the detection data and location information to generate spatial coverage stereo layer data.

2. The method according to claim 1, characterized in that The low-altitude communication module performs airspace wireless signal quality detection according to the measurement task to obtain corresponding detection data, specifically including: The low-altitude communication module scans the wireless environment according to the measurement task, obtains the frequency point, cell number, reference signal received power RSRP, signal to interference plus noise ratio SINR, and physical cell identifier PCI, and completes the access of the base station; The low-altitude communication module initiates a test execution, performs airspace wireless signal quality detection, records cell switching and coverage fluctuation events, and obtains corresponding detection data.

3. The method according to claim 1, characterized in that The airspace detection task includes an airspace coverage test and an uplink and downlink rate test. The uplink and downlink rate test is used to record the information transmission speed when the flight detector uploads and downloads data based on the airspace coverage test.

4. The method according to claim 1, characterized in that: The 3D positioning sensor device detects the position information of the flying detector according to the positioning task, specifically including: The 3D positioning sensor device uses the global navigation satellite system GNSS and a relative air pressure sensor to detect the position information of the flight detector.

5. The method according to claim 2, characterized in that: The low-altitude communication module adopts Internet of Things technology to realize airspace wireless signal quality detection under low power consumption.

6. A method for detecting airspace wireless signal quality, characterized in that: Applied to a multi-mode perception service middle station, the method includes: Sending an airspace detection task to the flight detector, so that the measurement task scheduling module in the flight detector sends the measurement task and the positioning task to the low-altitude communication module and the three-dimensional 3D positioning sensor device in the flight detector respectively according to the airspace detection task, and the low-altitude communication module performs airspace wireless signal quality detection according to the measurement task to obtain corresponding detection data; at the same time, the 3D positioning sensor device detects the position information of the flight detector according to the positioning task; wherein the flight detector includes the measurement task scheduling module, the low-altitude communication module and the 3D positioning sensor device; receiving the detection data and location information sent by the flight detector; The detection data and position information are analyzed to generate spatial coverage stereoscopic layer data.

7. The method according to claim 6, characterized in that The method further comprises: The spatial coordinate information is sent by the receiving device after the integrated transceiver uses millimeter waves to periodically detect the spatial coordinate information of the flight detector; The data analysis of the detection data and the position information to generate the spatial coverage stereoscopic layer data specifically includes: Match and calibrate the detection data, the position information and the spatial coordinate information to obtain corresponding measurement point information; The spatial coverage three-dimensional layer data is generated according to the measurement and marking information.

8. The method according to claim 6, characterized in that The airspace detection task includes an airspace coverage test and an uplink and downlink rate test. The uplink and downlink rate test is used to record the information transmission speed of the flight detector when uploading and downloading data on the basis of the airspace coverage test; The low-altitude communication module adopts Internet of Things technology to realize airspace wireless signal quality detection under low power consumption.

9. A system for detecting airspace wireless signal quality, characterized in that: Includes flight detectors and multi-mode sensing service middleware; The flight detector is used to perform the airspace wireless signal quality detection method described in any one of claims 1-5; The multi-mode sensing service middle station is used to execute the airspace wireless signal quality detection method described in any one of claims 6-8.

10. A device for detecting airspace wireless signal quality, characterized in that: It includes a memory and a processor, the memory stores a computer program, and the processor is configured to run the computer program to implement the airspace wireless signal quality detection method as described in any one of claims 1 to 5, or to implement the airspace wireless signal quality detection method as described in any one of claims 6 to 8.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, the method for detecting airspace wireless signal quality as described in any one of claims 1 to 5 is implemented, or the method for detecting airspace wireless signal quality as described in any one of claims 6 to 8 is implemented.

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