Airport scene monitoring data fusion method and device

Abstract

The invention relates to the technical field of airport scene monitoring, and provides an airport scene monitoring data fusion method and device, the airport scene monitoring data fusion device comprises an active phased array radar, a photoelectric detection system, an edge computing gateway, a network switch, a distribution box, a data processing server, a data link receiving station and a monitoring maintenance terminal. The method can be used for blind compensation for a traditional scene monitoring radar, can be independently deployed and used, is suitable for low-cost application scenes with insufficient construction budget, and can realize scene monitoring and guiding of small and medium-sized airports or navigable airports.

Description

Technical Field

[0001] The present invention relates to the technical field of airport scene monitoring, and in particular to a method and device for fusion of airport scene monitoring data. Background Art

[0002] Surveillance provides real-time dynamic information of targets (including aircraft in the air and moving targets on the airport surface) to air traffic control operation units and other related units and departments. Air traffic control operation units use surveillance information to determine and track the positions of aircraft in the air and moving targets on the airport surface, obtain surveillance target identification information, grasp aircraft flight trajectories and intentions, aircraft intervals, and monitor airport surface operation status, and support air-to-air safety warning, flight altitude monitoring, surface monitoring and guidance and other related applications, to improve the overall air traffic safety assurance capabilities, air traffic operation efficiency, aviation flight safety level and operation efficiency.

[0003] In order to realize airport surface surveillance, the commonly used surveillance equipment is the airport surface surveillance radar (surface surveillance radar). However, on the one hand, the construction cost of the surface surveillance radar is high. Except for a few large airports in China that have installed traditional surface surveillance radars, most small and medium-sized airports and general aviation airports have not installed them, lacking the corresponding surface surveillance guidance means; on the other hand, the traditional surface surveillance radar is a pulse radar with blind range. There are applications abroad that use small radars in other bands (non-X band) to fill the blind spots of the surface surveillance radar. Summary of the invention

[0004] The present invention aims to provide an airport surface surveillance data fusion method and device to solve the problems of high construction cost and large blind range of surface surveillance radar as an important equipment for traditional airport surveillance and guidance.

[0005] The data can be connected to the airport control center system to fill the blind spots of traditional surface surveillance radar; it can also be deployed and used independently to realize surface surveillance and guidance at small and medium-sized airports or general aviation airports, which has considerable engineering significance and economic value in the current context.

[0006] The present invention provides an airport surface surveillance data fusion device, comprising an active phased array radar, a photoelectric detection system, an edge computing gateway, a network switch, a distribution box, a data processing server, a data link receiving station and a monitoring and maintenance terminal;

[0007] The edge computing gateway and network switch are used to realize information interaction between active phased array radar, photoelectric detection system, data processing server, data link receiving station and monitoring and maintenance terminal based on the communication network; the distribution box is used to supply power and lightning protection to various devices in the device;

[0008] The active phased array radar is used to detect ground or air targets and obtain target information;

[0009] The data link receiving station is used to obtain monitoring information by receiving data link information;

[0010] The photoelectric detection system is used to achieve the capture, detection, tracking and identification of the target under the guidance of the target information monitoring information;

[0011] The data processing server is equipped with a background processing automation system for realizing equipment control, scheduling and status monitoring according to relevant strategies, and completing the fusion processing of target information and monitoring information, as well as reporting of fusion processing results and target capture, detection, tracking and identification results;

[0012] The monitoring and maintenance terminal is used to collect the status information of each device in the device, the fusion processing results of the target information and the monitoring information, and the capture, detection, tracking and identification results of the target, and complete the information display.

[0013] In some embodiments, the active phased array radar includes an active antenna array, an antenna base, and a power adapter;

[0014] The power adapter is used to supply power to the antenna base and the active antenna array;

[0015] The antenna seat is used to support the active antenna array and realize mechanical scanning of the active antenna array in different directions through servo drive;

[0016] The active antenna array is used to generate an internal timing signal according to the output signal of the antenna base under the servo drive of the antenna base, and realize mechanical scanning in different directions based on the internal timing signal, and obtain the target information on the ground or in the air through the radar echo information received after scanning.

[0017] In some embodiments, the mechanical scanning orientation of the active antenna array includes beam scanning of 360° in the horizontal plane and 45° in the elevation plane.

[0018] In some embodiments, the target information includes position, velocity, Doppler velocity, azimuth and pitch information of ground or air targets.

[0019] In some embodiments, the data link receiving station adopts ADS-B, Beidou control aircraft or Big S satellite receiving station.

[0020] In some embodiments, the edge computing gateway can convert the format of various commands and information in the device according to the requirements of each device.

[0021] In some embodiments, the monitoring and maintenance terminal uses a GIS electronic map to display information.

[0022] In some embodiments, the monitoring and maintenance terminal can manually or automatically control the photoelectric detection system to capture, detect, track and identify targets by setting the alarm level of regional detection.

[0023] The present invention also provides an airport surface surveillance data fusion method, which is implemented based on the above-mentioned airport surface surveillance data fusion device, and comprises:

[0024] Establish a communication link, and the monitoring and maintenance terminal sends a power-on self-test command to each device in the device to complete the self-test;

[0025] The background processing automation system sends control strategies or working templates to each device in the device to control the working status of each device;

[0026] Under the set control strategy or working template, each device in the device works according to the set control word, obtains the fusion processing results of each device status information, target information and monitoring information, and the capture, detection, tracking and identification results of the target, and displays and reports them.

[0027] In some embodiments, the control words in the control strategy or work template include:

[0028] Control words related to active phased array radar, including: operating range, blind range, scanning mode, working frequency setting, sector silent setting, turntable speed setting and data processing mode setting;

[0029] Control words related to the photoelectric detection system, including: scanning range, imaging mode, target type selection, exposure time and guidance mode;

[0030] Control words related to the data link receiving station include: operating distance, data processing method and working mode.

[0031] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0032] The present invention is used to fill in the blind spots of traditional scene surveillance radar or some low-cost application scenarios with insufficient construction budget. Its software system is deployed on the data processing server platform, and realizes the monitoring of people, cars, airplanes, etc. on the airport scene by connecting the surveillance data, while taking into account the tracking, detection, detection, and identification functions of low-altitude invading flying objects (unmanned aerial vehicles or birds). It carries out all-weather monitoring of ground moving targets such as people or vehicles on the airport scene, has the ability to classify targets, and comprehensively distinguishes single people, multiple people, shuttle buses, and airplanes by combining the target echo intensity, Doppler speed, movement speed, and photoelectric video information, monitors and tracks the activities of scene targets, grasps and displays their positions and movement trajectories, and completes target identification and automatic alarm. When necessary, the radar system can be used to detect low-altitude invading drones or birds to protect the safe operation of the airport. For equipment equipped with ADS-B transponders, the listing can also be realized by integrating the ADS-B data link with radar and photoelectric information. It has considerable engineering significance and economic value in the current context. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the structure of the airport scene monitoring data fusion device in an embodiment of the present invention.

[0034] Figure 2 Schematic diagram of an application scenario of the airport scene surveillance data fusion device in an embodiment of the present invention.

[0035] Figure 3 Flow chart of the airport scene monitoring data fusion method in an embodiment of the present invention. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example

[0039] like Figure 1As shown, the embodiment of the present invention proposes an airport surface monitoring data fusion device, including an active phased array radar, an optoelectronic detection system, an edge computing gateway, a network switch, a distribution box, a data processing server, a data link receiving station and a monitoring and maintenance terminal. The specific equipment is as follows

[0040] The active phased array radar is used to detect ground (such as long-distance scenes) or air targets and obtain target information. In some embodiments, the active phased array radar includes an active antenna array, an antenna seat and a power adapter; wherein the power adapter is used to power the antenna seat and the active antenna array, usually converting 220V AC into 24V DC. The antenna seat is used to support the active antenna array and realize the mechanical scanning of the active antenna array in different directions through servo drive. The active antenna array is used to generate an internal timing signal according to the output signal of the antenna seat (such as ACP, ARP signal, etc.) under the servo drive of the antenna seat, and realize mechanical scanning in different directions based on the internal timing signal, and obtain the target information of the long-distance scene or the air through the radar echo information received after scanning. Wherein, the azimuth of the mechanical scanning of the active antenna array includes beam scanning of 360° in the horizontal plane and 45° in the pitch plane. The target information includes the position, speed, Doppler speed, azimuth and pitch information of the ground or air target.

[0041] The data link receiving station is used to receive data link information (such as 1090ES data link information) to obtain monitoring information, such as monitoring information broadcast by ferry vehicles and aircraft equipped with ADS-B airborne terminals on the ground and in the air within the range of action, and send the monitoring information to the data processing server via the network switch and the communication network. In some embodiments, the data link receiving station adopts one of the data link receiving stations such as ADS-B, Beidou command aircraft, and Big S satellite receiving station.

[0042] The photoelectric detection system is used to achieve target capture, detection, tracking and identification under the guidance of target information of the active phased array radar and monitoring information of the data link receiving station.

[0043] The edge computing gateway is used to receive control commands from the background processing automation system to the front-end equipment (active phased array radar, photoelectric detection system, data link receiving station), and convert the format specified by each device to send it to the front-end device; receive various commands and information reported by the front-end device, convert them into a unified format and send them to the receiving user; execute the flow control strategy issued by the superior control system, and realize the time-sharing transmission of all large data volumes according to the flow control strategy requirements.

[0044] The network switch serves as a network interaction center, and is used to realize the interaction of various instructions, states and intelligence in the communication network.

[0045] The distribution box is used to complete the power supply and lightning protection of each device in the airport scene monitoring data fusion device. It can convert 220V AC power into the power type required by each device to complete the power supply and lightning protection of each device.

[0046] The data processing server is equipped with a background processing automation system, which is used to realize equipment control, scheduling and status monitoring according to relevant strategies, complete the fusion processing of target information and monitoring information, and report the fusion processing results and target capture, detection, tracking and identification results. The relevant strategies can be formulated according to needs.

[0047] The monitoring and maintenance terminal is used to collect the fusion processing results of the status information of each device in the device, the target information and the monitoring information, and the capture, detection, tracking and identification results of the target, and complete the information display, such as displaying it on the GIS electronic map. By setting the alarm level of regional detection, the photoelectric detection system can be manually or automatically controlled to capture, detect, track and identify the target. If necessary, the video can be recorded and saved, and the target can be associated with the monitoring and maintenance terminal to facilitate the later playback of the target trajectory, image playback and retrieval. At the same time, the control personnel can realize equipment control based on the monitoring and maintenance terminal.

[0048] It should be noted that users can configure the hardware equipment according to the actual needs of airport surface surveillance. The active phased array radar, optoelectronic detection system and data link receiving station in the surveillance equipment can be configured and operated independently, or jointly configured and operated to realize multi-source surface surveillance data fusion.

[0049] Typical application scenarios and information interaction relationships of the airport scene surveillance data fusion device are as follows: Figure 2 As shown. Among them, the distribution box mainly realizes the power distribution, network signal lightning protection and power supply lightning protection of the assembled equipment. The AC 220V mains power is input through the distribution box and then connected to the monitoring and maintenance terminal, data processing server, edge computing gateway, network switch, active phased array radar, photoelectric detection system and data link receiving station to realize the power supply and power supply lightning protection of each device in the device. In terms of network signal lightning protection, each device uses Gigabit network communication to realize the interaction of control signals and intelligence through the network switch. If necessary, the photoelectric detection system can be connected to the edge computing gateway to process the video information before connecting to the network switch. The network switch summarizes the network information of the active phased array radar, photoelectric detection system (can be connected to the edge computing gateway first), data link receiving station and data processing server, and then uniformly connects to the distribution box to realize network signal lightning protection. The network signal is output to the monitoring and maintenance terminal through the distribution box for control signal and intelligence interaction.

[0050] Based on the above-mentioned airport surface surveillance data fusion device, an airport surface surveillance data fusion method is as follows: Figure 3 As shown, specifically including:

[0051] Step 1: Initialization

[0052] During the initialization phase, the monitoring and maintenance terminal issues a communication line self-test command, and the device completes the communication link self-test. The communication link in the system is mainly a Gigabit or 100M network interface. After the communication link is established, the monitoring and maintenance terminal sequentially initiates a power-on self-test command for the active phased array radar, optoelectronic detection system, data link receiving station and other equipment. When all equipment completes the self-test, the initialization is completed. If there is a device that cannot complete the self-test, the operator needs to further check the fault type of the corresponding equipment and carry out maintenance work until the self-test can be completed.

[0053] Step 2: Control strategy issuance

[0054] The background processing automation system sends control strategies or work templates to each device in the device. During the control strategy sending process, the background processing automation system may send control strategies or work templates based on the specific needs of the user to achieve control over the working status of each device.

[0055] The control words related to the active phased array radar include: effective range, blind range, scanning mode, working frequency setting, sector silent setting, turntable speed setting, data processing method setting, etc.

[0056] The control words related to the photoelectric detection system include: scanning range, imaging mode, target type selection, exposure time, guidance mode, etc.

[0057] The control words related to the data link receiving station include: operating distance, data processing method, working mode, etc.

[0058] Step 3: Monitoring Information Acquisition

[0059] Under the set control strategy or working template, each device in the device works according to the set control word. The active phased array radar obtains target information through active detection, and the data link receiving station passively receives target information. The photoelectric detection system, under the guidance of the target information of the active phased array radar and the monitoring information of the data link receiving station, realizes the capture, detection, tracking and identification of the target, and realizes stable and continuous tracking of the target until it is released.

[0060] Step 4: Monitoring information fusion and equipment guidance

[0061] Under normal circumstances, the background processing automation system works for a long time to monitor information fusion and equipment guidance, and outputs fusion intelligence information and the capture, detection, tracking and identification results of the optoelectronic detection system for the target of interest. Usually, the optoelectronic detection system requires the input of other intelligence information to realize the external guidance of the equipment. A few optoelectronic devices can search, capture, detect, track and identify on their own. For optoelectronic detection systems that require external guidance, it is necessary to trigger the guidance on the monitoring and maintenance terminal. After the guidance is completed, the occupation can be released and then guided to observe other targets of interest.

[0062] Step 5: Information reporting

[0063] During the guidance process, the background processing automation system will eventually report the integrated intelligence information and the capture, detection, tracking and identification results of the target of interest by the optoelectronic detection system to the superior information system via the gigabit network or other communication means.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An airport scene surveillance data fusion device, characterized in that: Including active phased array radar, photoelectric detection system, edge computing gateway, network switch, distribution box, data processing server, data link receiving station and monitoring and maintenance terminal; The edge computing gateway and network switch are used to realize information interaction between active phased array radar, photoelectric detection system, data processing server, data link receiving station and monitoring and maintenance terminal based on the communication network; the distribution box is used to supply power and lightning protection to various devices in the device; The active phased array radar is used to detect ground or air targets and obtain target information; The data link receiving station is used to obtain monitoring information by receiving data link information; The photoelectric detection system is used to achieve the capture, detection, tracking and identification of the target under the guidance of the target information monitoring information; The data processing server is equipped with a background processing automation system for realizing equipment control, scheduling and status monitoring according to relevant strategies, and completing the fusion processing of target information and monitoring information, as well as reporting of fusion processing results and target capture, detection, tracking and identification results; The monitoring and maintenance terminal is used to collect the status information of each device in the device, the fusion processing results of the target information and the monitoring information, and the capture, detection, tracking and identification results of the target, and complete the information display.

2. The airport surface surveillance data fusion device according to claim 1, characterized in that: The active phased array radar comprises an active antenna array, an antenna base and a power adapter; The power adapter is used to supply power to the antenna base and the active antenna array; The antenna seat is used to support the active antenna array and realize mechanical scanning of the active antenna array in different directions through servo drive; The active antenna array is used to generate an internal timing signal according to the output signal of the antenna base under the servo drive of the antenna base, and realize mechanical scanning in different directions based on the internal timing signal, and obtain the target information on the ground or in the air through the radar echo information received after scanning.

3. The airport scene surveillance data fusion device according to claim 2, characterized in that: The mechanical scanning azimuth of the active antenna array includes beam scanning of 360° in the horizontal plane and 45° in the elevation plane.

4. The airport surface surveillance data fusion device according to claim 2, characterized in that: The target information includes the position, velocity, Doppler velocity, azimuth and pitch information of the ground or air target.

5. The airport surface surveillance data fusion device according to claim 1, characterized in that: The data link receiving station adopts ADS-B, Beidou control aircraft or Big S satellite receiving station.

6. The airport surface surveillance data fusion device according to claim 1, characterized in that: The edge computing gateway can convert the format of various commands and information in the device according to the requirements of each device.

7. The airport surface surveillance data fusion device according to claim 1, characterized in that: The monitoring and maintenance terminal uses a GIS electronic map to display information.

8. The airport surface surveillance data fusion device according to claim 1, characterized in that: The monitoring and maintenance terminal can manually or automatically control the photoelectric detection system to capture, detect, track and identify targets by setting the alarm level of regional detection.

9. A method for fusion of airport scene surveillance data, characterized in that: The airport scene surveillance data fusion device according to any one of claims 1 to 8 is implemented, comprising: Establish a communication link, and the monitoring and maintenance terminal sends a power-on self-test command to each device in the device to complete the self-test; The background processing automation system sends control strategies or working templates to each device in the device to control the working status of each device; Under the set control strategy or working template, each device in the device works according to the set control word, obtains the fusion processing results of each device status information, target information and monitoring information, and the capture, detection, tracking and identification results of the target, and displays and reports them.

10. The airport surface surveillance data fusion method according to claim 9, characterized in that: The control words in the control strategy or work template include: Control words related to active phased array radar, including: operating range, blind range, scanning mode, working frequency setting, sector silent setting, turntable speed setting and data processing mode setting; Control words related to the photoelectric detection system, including: scanning range, imaging mode, target type selection, exposure time and guidance mode; Control words related to the data link receiving station include: operating distance, data processing method and working mode.

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