CN112816979A - Airport runway foreign matter detection device and method - Google Patents
Airport runway foreign matter detection device and method Download PDFInfo
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- CN112816979A CN112816979A CN202110008248.2A CN202110008248A CN112816979A CN 112816979 A CN112816979 A CN 112816979A CN 202110008248 A CN202110008248 A CN 202110008248A CN 112816979 A CN112816979 A CN 112816979A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/885—Radar or analogous systems specially adapted for specific applications for ground probing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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Abstract
The invention relates to the technical field of radar detection, aims to solve the problems of low detection accuracy and high cost of the existing airport runway foreign matter detection method, and provides an airport runway foreign matter detection device and method, wherein the scheme mainly comprises the following steps: the tower is fixed on one side of the airport runway, the vertical distance between the fixed position of the tower and the centerline of the airport runway is 150-240 meters, and the ratio of the height of the radar module from the ground to the vertical distance between the fixed position of the tower and the centerline of the airport runway is tan 2.5-tan 3.5 degrees; the driving module drives the radar module to scan according to a scanning driving signal sent by the upper computer; the radar module determines a real-time azimuth angle of the radar according to the scanning driving signal, sends a radio frequency signal to the airport runway and receives a reflected signal reflected by a target, judges whether the airport runway has foreign matters or not according to the reflected signal and the real-time azimuth angle, and sends a detection result to an upper computer.
Description
Technical Field
The invention relates to the technical field of radar detection, in particular to an airport runway foreign matter detection device and method.
Background
The detection of foreign matters on the runway surface of the airport runway is an extremely important link for ensuring the safe taking off and landing of the airplane, and for small airport runways with few taking off and landing times per day, the manual inspection mode can be adopted due to the longer working window period. However, for a large airport, the number of the single-day take-off and landing frames is multiple, the time interval of take-off and landing flights is only a few minutes, and at this time, the real-time detection must be carried out by adopting a road surface detection device, so that the safe arrival and departure of the airplane are ensured.
China is a big population country and also a big trip country. China has numerous large and medium civil airports, but in the current domestic and foreign civil aviation markets, the detection mode aiming at the foreign matters on the runway is mostly single side lamp type radar or manual inspection. The manual inspection mode is time-consuming and labor-consuming, and the condition of inaccurate detection is easy to occur; and the sidelight type radar has short detection distance, so that dozens of radars are needed for one runway, and the cost is overhigh.
Disclosure of Invention
The invention aims to solve the problems of low detection accuracy and high cost of the existing airport runway foreign matter detection method, and provides an airport runway foreign matter detection device and method.
The technical scheme adopted by the invention for solving the technical problems is as follows: airport runway foreign matter detection device includes: the radar module and the driving module are electrically connected with the upper computer respectively, the radar module is fixedly connected with the driving module, the driving module is movably connected with the tower, the tower is fixed on one side of an airport runway, the vertical distance between the fixing position of the tower and the center line of the airport runway is 150 plus 240 meters, and the ratio of the height of the radar module from the ground to the vertical distance between the fixing position of the tower and the center line of the airport runway is tan 2.5-tan 3.5 degrees;
the upper computer is used for generating a scanning driving signal, sending the scanning driving signal to the driving module and the radar module, and receiving a detection result sent by the radar module;
the driving module is used for receiving a scanning driving signal and driving the radar module to rotate according to the scanning driving signal, so that the radar module can scan the airport runway;
the radar module is used for receiving scanning driving signals, determining real-time azimuth angles of the radars according to the scanning driving signals, sending radio frequency signals to the airport runways, receiving reflection signals after target reflection, judging whether foreign matters exist in the airport runways according to the reflection signals and the real-time azimuth angles to generate detection results, and sending the detection results to an upper computer.
Further, the radar module includes: the device comprises an antenna, a frequency synthesis module, a millimeter wave module, an intermediate frequency module and a signal processing module;
the frequency synthesis module is used for generating a clock signal and a local oscillator signal;
the millimeter wave module is used for inputting a radio frequency signal obtained after octave processing is carried out on the local oscillator signal to an antenna, receiving a reflected signal through the antenna and converting the reflected signal to a zero intermediate frequency IQ signal;
the intermediate frequency module is used for amplifying the zero intermediate frequency I path signal and the Q path signal;
the signal processing module is used for receiving the scanning driving signal, determining a real-time azimuth angle of the radar according to the scanning driving signal, sampling the amplified zero intermediate frequency I-path signal and Q-path signal, judging whether foreign matters exist on the airport runway according to the sampling signal and the real-time azimuth angle, generating a detection result, and sending the detection result to an upper computer.
Further, the signal processing module is further configured to: and when the foreign matters exist in the airport runway, determining the positions of the foreign matters according to the sampling signals and the real-time azimuth angles.
Further, the driving device includes: the device comprises a power supply module, a controller, a motor driving module and a transmission mechanism;
the power supply module is used for supplying power to the controller and the motor;
the controller is used for receiving a scanning driving signal and driving the motor to rotate through the motor driving module according to the scanning driving signal;
the power transmission mechanism is used for driving the radar module to rotate under the driving of the motor, so that the radar module can scan the airport runway.
Furthermore, an encoder is arranged on the driving device;
the encoder is used for detecting the real-time rotation angle of the motor and sending the real-time rotation angle to the radar module;
the radar module is also used for receiving the real-time rotation angle sent by the encoder, determining the real-time azimuth angle of the radar according to the real-time rotation angle, and judging whether foreign matters exist in the airport runway according to the reflection signal and the determined real-time azimuth angle to generate a detection result.
On the other hand, the invention also provides an airport runway foreign matter detection method, which is applied to the airport runway foreign matter detection device and comprises the following steps:
step 2, the driving module receives a scanning driving signal and drives the radar module to rotate according to the scanning driving signal, so that the radar module can scan the airport runway;
and 3, the radar module receives the scanning driving signal, determines the real-time azimuth angle of the radar according to the scanning driving signal, sends a radio frequency signal to the airport runway and receives a reflected signal reflected by a target, judges whether foreign matters exist in the airport runway or not according to the reflected signal and the real-time azimuth angle to generate a detection result, and sends the detection result to an upper computer.
The invention has the beneficial effects that: according to the device and the method for detecting the foreign matters on the airport runway, the radar modules are fixed on one side of the airport runway in a tower mode, so that the automatic detection of the foreign matters on the airport runway is realized, the accuracy of the detection of the foreign matters is improved, the length of the runway detected by one radar module can reach 900 meters, more radar modules do not need to be arranged on the same runway, the cost of the detection of the foreign matters is reduced, and the safety of the airport runway is improved.
Drawings
Fig. 1 is a schematic view of an airport runway foreign object detection apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an airport runway foreign object detection device according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a method for detecting foreign objects on an airport runway according to an embodiment of the present invention;
description of reference numerals:
a D-radar module; a-airport runways; a T-tower; l-airport runway centerline; a-vertical distance of the fixed position of the tower from the centerline of the airport runway; b-height of the radar module from the ground.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The invention aims to solve the problems of low detection accuracy and high cost of the existing airport runway foreign matter detection method, and provides an airport runway foreign matter detection device and method, wherein the main technical scheme comprises the following steps: the radar module and the driving module are electrically connected with the upper computer respectively, the radar module is fixedly connected with the driving module, the driving module is movably connected with the tower, the tower is fixed on one side of an airport runway, the vertical distance between the fixing position of the tower and the center line of the airport runway is 150 plus 240 meters, and the ratio of the height of the radar module from the ground to the vertical distance between the fixing position of the tower and the center line of the airport runway is tan 2.5-tan 3.5 degrees; the upper computer is used for generating a scanning driving signal, sending the scanning driving signal to the driving module and the radar module, and receiving a detection result sent by the radar module; the driving module is used for receiving a scanning driving signal and driving the radar module to rotate according to the scanning driving signal, so that the radar module can scan the airport runway; the radar module is used for receiving scanning driving signals, determining real-time azimuth angles of the radars according to the scanning driving signals, sending radio frequency signals to the airport runways, receiving reflection signals after target reflection, judging whether foreign matters exist in the airport runways according to the reflection signals and the real-time azimuth angles to generate detection results, and sending the detection results to an upper computer.
Before practical use, the radar module and the driving device are fixed and then installed on a tower, the tower is vertically fixed at one side of an airport runway, the vertical distance from the fixed position to the center line of the airport runway is 150-240 meters, and the height of the tower can enable the ratio of the height of the radar module from the ground to the vertical distance from the fixed position of the tower to the center line of the airport runway to be tan 2.5-tan 3.5 degrees, wherein the center line of the airport runway is parallel to the airport runway and is positioned at the center line of one half width of the airport runway; when in actual use, the drive module receives the host computer and sends scanning drive signal and then drives radar module and realize circumferential scan, fan-shaped scanning and the function of residing of radar, and radar module judges in real time whether there is the foreign matter in current scanning position at the scanning in-process to generate the testing result in view of the above, and finally, radar module sends the testing result to the host computer, and the staff can judge whether there is the foreign matter in the airport runway according to the testing result in the host computer.
Examples
As shown in fig. 1, the airport runway foreign matter detection apparatus according to the embodiment of the present invention includes: the radar module and the driving module are electrically connected with the upper computer respectively, the radar module is fixedly connected with the driving module, the driving module is movably connected with the tower, the tower is fixed on one side of an airport runway, the vertical distance between the fixing position of the tower and the center line of the airport runway is 150 plus 240 meters, and the ratio of the height of the radar module from the ground to the vertical distance between the fixing position of the tower and the center line of the airport runway is tan 2.5-tan 3.5 degrees;
the upper computer is used for generating a scanning driving signal, sending the scanning driving signal to the driving module and the radar module, and receiving a detection result sent by the radar module;
the driving module is used for receiving a scanning driving signal and driving the radar module to rotate according to the scanning driving signal, so that the radar module can scan the airport runway;
the radar module is used for receiving scanning driving signals, determining real-time azimuth angles of the radars according to the scanning driving signals, sending radio frequency signals to the airport runways, receiving reflection signals after target reflection, judging whether foreign matters exist in the airport runways according to the reflection signals and the real-time azimuth angles to generate detection results, and sending the detection results to an upper computer.
Particularly, radar module accessible flange is fixed with drive module, and the maintenance passageway entry of radar bottom is avoided to the pylon crossbeam, guarantees that maintainer can normally get into the radar and maintain the operation.
It can be understood that, before actual use, as shown in fig. 2, the radar module D is fixed with the driving device and then installed on the tower T, the tower T is vertically fixed at a distance of 150-;
in this embodiment, the radar module may include: the device comprises an antenna, a frequency synthesis module, a millimeter wave module, an intermediate frequency module and a signal processing module;
the frequency synthesis module is used for generating a clock signal and a local oscillator signal;
the millimeter wave module is used for inputting a radio frequency signal obtained after octave processing is carried out on the local oscillator signal to an antenna, receiving a reflected signal through the antenna and converting the reflected signal to a zero intermediate frequency IQ signal;
the intermediate frequency module is used for amplifying the zero intermediate frequency I path signal and the Q path signal;
the signal processing module is used for receiving the scanning driving signal, determining a real-time azimuth angle of the radar according to the scanning driving signal, sampling the amplified zero intermediate frequency I-path signal and Q-path signal, judging whether foreign matters exist on the airport runway according to the sampling signal and the real-time azimuth angle, generating a detection result, and sending the detection result to an upper computer.
In order to realize the automatic scanning of the radar, the scanning driving signal sent by the upper computer can be preset, and when the foreign object detection is required to be carried out on the airport runway, a worker can send the scanning driving signal through the upper computer.
It can be understood, radar module accessible communication module is connected with the host computer, when in actual use, drive module receives the host computer and sends scanning drive signal and then drives radar module and realize the circular scanning of radar, fan-shaped scanning and resident function, radar module is at the scanning in-process, through its antenna emission radiofrequency signal and receipt reflected signal, control module wherein judges through the reflected signal of receipt and the real-time azimuth of the radar of reading whether there is the foreign matter in current scanning position, if yes, then the record exists foreign matter and position, treat after the radar scanning, generate the testing result, finally, control module sends the testing result to the host computer, the staff can judge whether there is the position of foreign matter and foreign matter in the airport runway according to the testing result in the host computer.
In order to protect the antenna, a radome made of glass fiber is further provided outside the antenna.
In this embodiment, the driving device may include: the device comprises a power supply module, a controller, a motor driving module and a transmission mechanism;
the power supply module is used for supplying power to the controller and the motor;
the controller is used for receiving a scanning driving signal and driving the motor to rotate through the motor driving module according to the scanning driving signal;
the power transmission mechanism is used for driving the radar module to rotate under the driving of the motor, so that the radar module can scan the airport runway.
The motor driving module can adopt a three-phase AC 200V SGD7S-5R5A type servo motor driver manufactured by YASKAWA company, and the motor can adopt an SGM7J-08AFC6S type servo motor manufactured by YASKAWA company.
It can be understood that after receiving the scanning drive signal, the controller in the drive device controls the motor to rotate according to the scanning drive signal, and then drives the radar module to rotate through the transmission mechanism, so that the radar module can perform circumferential scanning, sector scanning and residence on the airport runway.
In order to improve the accuracy of determining the position of the foreign object, in this embodiment, an encoder is disposed on the driving device;
the encoder is used for detecting the real-time rotation angle of the motor and sending the real-time rotation angle to the radar module;
the radar module is also used for receiving the real-time rotation angle sent by the encoder, determining the real-time azimuth angle of the radar according to the real-time rotation angle, and judging whether foreign matters exist in the airport runway according to the reflection signal and the determined real-time azimuth angle to generate a detection result.
It can be understood that the encoder is arranged on the motor, the real-time rotating angle of the motor can be acquired in real time, the real-time rotating angle of the motor is sent to the control module in the radar module, the azimuth angle of the corresponding radar is calculated by the control module, and then whether foreign matters exist or not and the positions of the foreign matters are judged according to the azimuth angles of the reflected signals and the radar.
Based on the above technical solution, this embodiment further provides an airport runway foreign object detection method, as shown in fig. 3, which is applied to the above airport runway foreign object detection device, and includes the following steps:
step S1, the upper computer generates a scanning driving signal and sends the scanning driving signal to a driving module and a radar module;
step S2, a driving module receives a scanning driving signal and drives a radar module to rotate according to the scanning driving signal, so that the radar module can scan an airport runway;
and step S3, the radar module receives the scanning driving signal, determines the real-time azimuth angle of the radar according to the scanning driving signal, sends a radio frequency signal to the airport runway and receives a reflected signal reflected by the target, judges whether the airport runway has foreign matters or not according to the reflected signal and the real-time azimuth angle to generate a detection result, and sends the detection result to the upper computer.
It can be understood that, the method for detecting foreign matters on an airport runway according to the embodiment of the present invention is a method implemented based on the apparatus for detecting foreign matters on an airport runway according to the embodiment, and the method disclosed in the embodiment is simple in description because it corresponds to the apparatus disclosed in the embodiment, and relevant points can be referred to the partial description of the apparatus.
Claims (6)
1. Airport runway foreign matter detection device, its characterized in that includes: the radar module and the driving module are electrically connected with the upper computer respectively, the radar module is fixedly connected with the driving module, the driving module is movably connected with the tower, the tower is fixed on one side of an airport runway, the vertical distance between the fixing position of the tower and the center line of the airport runway is 150 plus 240 meters, and the ratio of the height of the radar module from the ground to the vertical distance between the fixing position of the tower and the center line of the airport runway is tan 2.5-tan 3.5 degrees;
the upper computer is used for generating a scanning driving signal, sending the scanning driving signal to the driving module and the radar module, and receiving a detection result sent by the radar module;
the driving module is used for receiving a scanning driving signal and driving the radar module to rotate according to the scanning driving signal, so that the radar module can scan the airport runway;
the radar module is used for receiving scanning driving signals, determining real-time azimuth angles of the radars according to the scanning driving signals, sending radio frequency signals to the airport runways, receiving reflection signals after target reflection, judging whether foreign matters exist in the airport runways according to the reflection signals and the real-time azimuth angles to generate detection results, and sending the detection results to an upper computer.
2. The airfield runway foreign object detection apparatus of claim 1, wherein the radar module comprises: the device comprises an antenna, a frequency synthesis module, a millimeter wave module, an intermediate frequency module and a signal processing module;
the frequency synthesis module is used for generating a clock signal and a local oscillator signal;
the millimeter wave module is used for inputting a radio frequency signal obtained after octave processing is carried out on the local oscillator signal to an antenna, receiving a reflected signal through the antenna and converting the reflected signal to a zero intermediate frequency IQ signal;
the intermediate frequency module is used for amplifying the zero intermediate frequency I path signal and the Q path signal;
the signal processing module is used for receiving the scanning driving signal, determining a real-time azimuth angle of the radar according to the scanning driving signal, sampling the amplified zero intermediate frequency I-path signal and Q-path signal, judging whether foreign matters exist on the airport runway according to the sampling signal and the real-time azimuth angle, generating a detection result, and sending the detection result to an upper computer.
3. The airfield runway foreign object detection apparatus of claim 2, wherein the signal processing module is further adapted to: and when the foreign matters exist in the airport runway, determining the positions of the foreign matters according to the sampling signals and the real-time azimuth angles.
4. The airport runout foreign object detection apparatus of claim 1, wherein said drive means comprises: the device comprises a power supply module, a controller, a motor driving module and a transmission mechanism;
the power supply module is used for supplying power to the controller and the motor;
the controller is used for receiving a scanning driving signal and driving the motor to rotate through the motor driving module according to the scanning driving signal;
the power transmission mechanism is used for driving the radar module to rotate under the driving of the motor, so that the radar module can scan the airport runway.
5. The airfield runway foreign matter detecting device of claim 4, wherein the drive device is provided with an encoder;
the encoder is used for detecting the real-time rotation angle of the motor and sending the real-time rotation angle to the radar module;
the radar module is also used for receiving the real-time rotation angle sent by the encoder, determining the real-time azimuth angle of the radar according to the real-time rotation angle, and judging whether foreign matters exist in the airport runway according to the reflection signal and the determined real-time azimuth angle to generate a detection result.
6. The method for detecting a foreign object on an airport runway, which is applied to the apparatus for detecting a foreign object on an airport runway according to any one of claims 1 to 5, comprising the steps of:
step 1, an upper computer generates a scanning driving signal and sends the scanning driving signal to a driving module and a radar module;
step 2, the driving module receives a scanning driving signal and drives the radar module to rotate according to the scanning driving signal, so that the radar module can scan the airport runway;
and 3, the radar module receives the scanning driving signal, determines the real-time azimuth angle of the radar according to the scanning driving signal, sends a radio frequency signal to the airport runway and receives a reflected signal reflected by a target, judges whether foreign matters exist in the airport runway or not according to the reflected signal and the real-time azimuth angle to generate a detection result, and sends the detection result to an upper computer.
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| CN202110008248.2A CN112816979A (en) | 2021-01-05 | 2021-01-05 | Airport runway foreign matter detection device and method |
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