WO2022083699A1 - Dispositif de détection radar et système de détection radar - Google Patents

Dispositif de détection radar et système de détection radar Download PDF

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Publication number
WO2022083699A1
WO2022083699A1 PCT/CN2021/125394 CN2021125394W WO2022083699A1 WO 2022083699 A1 WO2022083699 A1 WO 2022083699A1 CN 2021125394 W CN2021125394 W CN 2021125394W WO 2022083699 A1 WO2022083699 A1 WO 2022083699A1
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WO
WIPO (PCT)
Prior art keywords
antenna
angle
radio frequency
view
frequency chip
Prior art date
Application number
PCT/CN2021/125394
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English (en)
Chinese (zh)
Inventor
林中山
石常鑫
Original Assignee
深圳市道通科技股份有限公司
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Publication of WO2022083699A1 publication Critical patent/WO2022083699A1/fr

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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
    • G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
    • 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
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • 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
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • 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
    • G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
    • 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
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9315—Monitoring blind spots

Definitions

  • the present application relates to the field of radar technology, and in particular, to a radar detection device and a radar detection system.
  • on-board radar is an important sensor used to detect objects around the vehicle, such as pedestrians, vehicles, and so on.
  • the vehicle-mounted radar can radiate the electromagnetic wave directionally through the antenna; the target scatters the intercepted electromagnetic wave in all directions, and part of the scattered electromagnetic wave is directed towards the receiving direction of the vehicle-mounted radar; after the vehicle-mounted radar collects the part of the scattered electromagnetic wave through the antenna, it scatters the part of the electromagnetic wave.
  • the target detection information can be obtained by performing signal processing such as amplification of the electromagnetic wave.
  • the range of the field of view of the short-range detection radar is 90°-120°, and the angle of the field of view of the long-distance detection vehicle radar is 10°-40°.
  • the vehicle radar in order to obtain a longer detection distance, the vehicle radar usually selects a short-range detection radar.
  • vehicle-mounted radar usually uses a single radar to detect the target. Since the field of view of a single radar is relatively small, the vehicle-mounted radar has a large detection blind area, resulting in There is a big safety hazard in the use of automotive radar.
  • the present invention provides a radar detection device, the radar detection device includes a first detection component, a second detection component and a third detection component; wherein,
  • the second detection component is used for emitting a second electromagnetic wave, and the second electromagnetic wave has a second field of view;
  • the third detection component is used for emitting a third electromagnetic wave, and the third electromagnetic wave has a third angle of view;
  • the second detection component includes a second antenna plate and a second antenna, the second antenna is arranged on the second antenna plate, and the second antenna is used to transmit the second electromagnetic wave;
  • the third detection component includes a third antenna plate and a third antenna, the third antenna is disposed on the third antenna plate, and the third antenna is used for transmitting the third electromagnetic wave.
  • the first detection component further includes a first radio frequency chip, the first radio frequency chip is disposed on the first antenna board, and the first radio frequency chip is electrically connected to the first antenna;
  • the second detection component further includes a second radio frequency chip, the second radio frequency chip is disposed on the second antenna board, and the second radio frequency chip is electrically connected to the second antenna;
  • the third detection component further includes a third radio frequency chip, the third radio frequency chip is disposed on the third antenna board, and the third radio frequency chip is electrically connected to the second antenna;
  • the first radio frequency chip, the second radio frequency chip and the third radio frequency chip are connected in communication.
  • the number of the power supply chip is one, the first radio frequency chip, the second radio frequency chip Both the chip and the third radio frequency chip are electrically connected to the power chip;
  • the radar detection device further includes a power supply chip and a baseband board, the power supply chip is arranged on the baseband board, and the first antenna board, the second antenna board and the third antenna board are connected to the baseband board. the baseband board;
  • the first detection component further includes a first radio frequency chip, the first radio frequency chip is disposed on the baseband board, and the first radio frequency chip is electrically connected to the first antenna;
  • the second detection component further includes a second radio frequency chip, the second radio frequency chip is disposed on the baseband board, and the second radio frequency chip is electrically connected to the second antenna;
  • the third detection component further includes a third radio frequency chip, the third radio frequency chip is disposed on the baseband board, and the third radio frequency chip is electrically connected to the third antenna;
  • the first radio frequency chip, the second radio frequency chip and the third radio frequency antenna are connected in communication.
  • the base tape board includes a first substrate, a second substrate and a third substrate, and the first substrate and the third substrate are located at two ends of the second substrate;
  • the base tape board includes a first substrate, a second substrate and a third substrate, and the first substrate and the third substrate are located at two ends of the second substrate;
  • the first antenna plate is perpendicular to the first substrate
  • the second antenna plate is perpendicular to the second substrate
  • the third antenna plate is perpendicular to the third substrate.
  • the radar detection device further includes a first angle adjustment device and a second angle adjustment device;
  • the second angle adjustment device is connected to the second antenna plate and the third antenna plate, and the second angle adjustment device is used to adjust the angle between the second antenna plate and the third antenna plate .
  • the angle of the first field of view is greater than or equal to 10° and less than or equal to 90°; and/or
  • the angle of the third angle of view is greater than or equal to 10° and less than or equal to 90°;
  • the angle of the second field of view is greater than or equal to 120° and less than or equal to 170°.
  • the embodiments of the present invention provide a radar detection device and a radar detection system, including a first detection component, a second detection component and a third detection component;
  • the first electromagnetic wave emitted by the first detection component has a first angle of view
  • the second electromagnetic wave emitted by the second detection component has a second angle of view
  • the third electromagnetic wave emitted by the third detection component has a third angle of view.
  • 1 is a schematic diagram of the detection range of a conventional radar detection device
  • FIG. 2 is a schematic structural diagram of a radar detection device provided by an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a radar detection device provided by an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a radar detection device provided by an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of the radar detection device in FIG. 6 from another perspective.
  • FIG. 1 schematically shows a schematic diagram of the detection range of a conventional radar detection device.
  • the millimeter-wave radar is used to detect the forward-facing target of the car.
  • the millimeter-wave radar used for medium and short-range detection has a field of view angle of 90°-120°, which is used for The angle of field of view of the millimeter-wave radar for long-distance (for example, more than 160m) detection is 10°-40°.
  • the angle of the field of view of the millimeter-wave radar is limited, so that the millimeter-wave radar has a detection blind spot, for example, the area A and the area B in Figure 1.
  • Figure 2 schematically shows the structure of a radar detection device, which can be installed in a car or other equipment that needs to detect a target, such as an intelligent robot and the like.
  • the radar detection device can be installed in the front (or rear) of the car and used to detect objects in front of or behind the car.
  • the radar detection device 100 includes a first detection component 101 , a second detection component 102 and a third detection component 103 .
  • the first detection assembly 101 has a first angle of view
  • the second detection assembly 102 has a second angle of view
  • the third detection assembly 103 has a third angle of view.
  • the boundary lines of the first angle of view and the second angle of view overlap or the detection area covered by the first angle of view and the second angle of view overlap partially, and the difference between the second angle of view and the third angle of view is overlapped.
  • the boundary lines are coincident or the detection areas covered by the second field of view and the third field of view are partially coincident, so that the field of view of the radar detection device is greater than or equal to 180°.
  • the detection area in this embodiment is an area where the electromagnetic wave reflected by the first detection component, the second detection component or the third detection component can identify the target.
  • the first detection component 101 , the second detection component 102 and the third detection component 103 are radars; in other embodiments, the first detection component 101 , the second detection component 102 and the third detection component 103
  • the vision sensor may be a camera.
  • the first detection component 101 is used to transmit a first electromagnetic wave, and the first electromagnetic wave has a first field of view angle ⁇ 1; the second detection component 102
  • the third detection component 103 is used for emitting a second electromagnetic wave, and the second electromagnetic wave has a second field of view angle ⁇ 2, and the third detection component 103 is used for emitting a third electromagnetic wave, and the third electromagnetic wave has a third field of view angle ⁇ 3.
  • the first angle of view is the maximum spatial angle range within which the target can be detected by the first electromagnetic wave
  • the second angle of view is the maximum spatial angle range within which the target can be detected by the second electromagnetic wave
  • the third angle of view is the Three electromagnetic waves can detect the maximum spatial angle range of the target.
  • the sizes of the first viewing angle, the second viewing angle and the third viewing angle can be adjusted according to actual needs. For example, in some embodiments, 10° ⁇ 1 ⁇ 90°, 120° ⁇ 2 ⁇ 170°, and 120° ⁇ 3 ⁇ 170°.
  • the sizes of the second field of view and the third field of view may be equal or unequal.
  • the first angle of view and the third angle of view are both 130°, or the first angle of view is 130° and the third angle of view is 140°.
  • the second detection device can use a radar with a smaller field of view, a long-distance detection radar can be selected for the second detection device. Therefore, the embodiments of the present invention can improve the field of view of the radar detection device while ensuring the detection distance of the radar detection device.
  • the radar detection device can not only detect the target located in front of the radar detection device but also detect the targets located on the left and right sides of the radar detection device. For example, when a radar detection device with a field of view greater than 180° is installed in front of the vehicle, traffic accidents caused by pedestrians or other vehicles suddenly entering from the driver's blind spot can be effectively avoided while the driver is driving.
  • the field of view of the radar detection device 100 is greater than or equal to 180°.
  • the detection with a field of view angle of 180° eliminates the detection blind spot of the traditional radar detection device 100 and improves the safety of vehicle driving; on the one hand, the installation horizontal angle of the radar detection device 100 has greater redundancy,
  • the radar detection device 100 can be installed within the redundancy range of ⁇ x degrees in the horizontal direction. Under the condition that the field of view angle is satisfied, the installation accuracy requirements are reduced and the installation speed is improved; on the other hand, after the installation is completed,
  • the radar detection device 100 can be calibrated in a static environment, and does not need to be calibrated in a relatively harsh calibration environment.
  • the value of x depends on the angle of view of the radar detection device 100. For example, when the angle of view of the radar detection device 100 is 190 degrees, the value of x is 5, and when the angle of view of the radar detection device 100 is 200 degrees , the x value is 10.
  • FIG. 3 schematically shows the structure of the radar detection device from a viewing angle.
  • the first detection component 31 includes a first antenna plate 310 and a first antenna 311 , and the first antenna 311 is disposed on the first antenna plate 310 , and the first antenna 311 is used for transmitting a first electromagnetic wave, the first electromagnetic wave It has a first angle of view, the optical axis of the first angle of view is perpendicular to the first antenna plate 310, the first angle of view is based on the transmitting position of the first antenna 311 as the starting position, and the object image of the measured target can pass through The angle formed by the two edge lines of the largest range of the first electromagnetic wave 101 .
  • the first electromagnetic wave is a cone-shaped millimeter wave with a wavelength of 1-10 mm, and the first electromagnetic wave is used to detect the distance and speed of the target appearing within the first field of view angle relative to the second detection component. and/or angle.
  • the first antenna 311 includes a plurality of first microstrip patch antennas, and the plurality of first microstrip patch antennas are arranged on the side of the first antenna plate 310 in parallel with each other.
  • the distance between two adjacent first microstrip patch antennas determines the size of the first angle of view, and the larger the distance, the greater the first angle of view.
  • the second detection component 32 includes a second antenna plate 320 and a second antenna 321.
  • the second antenna 321 is disposed on the second antenna plate 320.
  • the second antenna 321 is used to transmit a second electromagnetic wave, and the second electromagnetic wave has the above-mentioned second field of view
  • the optical axis of the second field of view is perpendicular to the second antenna plate 320, and the second field of view is based on the emission position of the second antenna 321 as the starting position, and is based on the maximum range of the second electromagnetic wave that the measured target can pass through.
  • the second electromagnetic wave is a millimeter wave of a cone-shaped beam, and its wavelength is 1-10 mm.
  • the second electromagnetic wave can be used to detect the distance, velocity and/or angle of the target object within the second field of view angle relative to the second detection component.
  • the second antenna 321 includes a plurality of second microstrip patch antennas, and the plurality of second microstrip patch antennas are arranged on one side of the second antenna plate 320 in parallel with each other.
  • the distance between two adjacent second microstrip patch antennas 321 determines the size of the second angle of view, and the larger the distance, the greater the second angle of view.
  • the third detection component 33 includes a third antenna plate 330 and a third antenna 331, the third antenna 331 is disposed on the third antenna plate 330, the third antenna 331 is used for emitting a third electromagnetic wave, and the third electromagnetic wave has a third angle of view,
  • the optical axis of the third field of view is perpendicular to the third antenna plate 330 , and the third field of view is based on the emission position of the third antenna 331 as the starting position, and the object to be measured can pass through the two maximum ranges of the third electromagnetic wave.
  • the third electromagnetic wave is a millimeter wave of a cone beam, and its wavelength is 1-10 mm.
  • the third electromagnetic wave can be used to detect the distance, velocity and/or angle of the target appearing within the third field of view angle relative to the third detection component.
  • the third antenna 331 includes a plurality of third microstrip patch antennas, and the plurality of third microstrip patch antennas are arranged on one side of the third antenna plate 330 in parallel with each other.
  • the distance between two adjacent third microstrip patch antennas determines the size of the third angle of view, and the larger the distance, the greater the third angle of view.
  • the angle between the optical axis of the first electromagnetic wave and the third electromagnetic wave and the optical axis of the second electromagnetic wave, and the initial position of the first electromagnetic wave, the second electromagnetic wave and the third outgoing electromagnetic wave can be adjusted by setting The distance is such that the angle of view of the first electromagnetic wave and the second electromagnetic wave, and the adjacent two sides of the angle of view of the second electromagnetic wave and the third electromagnetic wave coincide, or the range part covered by the first electromagnetic wave, the second electromagnetic wave and the third electromagnetic wave Coincidence, so that the overall field of view of the radar detection device is not less than 180°.
  • the line segments on the two boundary line segments between the second intersection point and the radar detection device and the area enclosed by the radar detection device is the detection blind area.
  • the detection blind zone of the staggered part is usually closer to the vehicle body, and the detection blind zone of the staggered part is located between the first electromagnetic wave and the second electromagnetic wave, and has a small area.
  • the first electromagnetic wave, the second electromagnetic wave and the third electromagnetic wave can detect the front and/or rear of the vehicle body within a range of a field angle of not less than 180°.
  • the target or obstacle will not suddenly appear in the detection blind area.
  • the obstacle will be blocked by the first electromagnetic wave, the second electromagnetic wave and the third electromagnetic wave. At least one of the electromagnetic waves is detected. Therefore, the detection blind area formed by the staggered portion is an unnecessary detection area.
  • the angle between the first antenna board and the second antenna board is the first preset angle
  • the angle between the second antenna board and the third antenna board is the second preset angle
  • the larger the first angle of view, the second angle of view, the third angle of view, the first preset angle and the second preset angle the smaller the detection blind area area formed by the staggered portion.
  • the larger the first angle of view, the second angle of view and the third angle of view the greater the detection accuracy of the first detection component, the second detection component and the third detection component, the radar detection
  • the development of the device is more difficult.
  • the angle between the first preset angle and the second preset angle is 165°.
  • FIG. 4 schematically shows the structure of the radar detection device from a perspective.
  • FIG. 4 may be a schematic diagram of the radar detection device in FIG. 3 from a perspective.
  • the first detection component 41 further includes a first radio frequency chip 412, the first radio frequency chip 412 is disposed on the first antenna board 410, and the first radio frequency chip 412 is electrically connected to the first antenna 411.
  • the second detection component 42 further includes a second radio frequency chip 422 , the second radio frequency chip 422 is disposed on the second antenna board 420 , and the second radio frequency chip 422 is electrically connected to the second antenna 421 .
  • the third detection component 43 further includes a third radio frequency chip 432 , the second radio frequency chip 432 is disposed on the second antenna board 430 , and the second radio frequency chip 432 is electrically connected to the second antenna 431 .
  • the first radio frequency chip 412 , the second radio frequency core 422 and the third radio frequency chip 432 are connected in communication.
  • Communication connections in the embodiments of the present invention include wired communication connections and wireless communication connections.
  • the wired communication connection may be an electrical connection
  • the wireless communication connection may be a Bluetooth connection.
  • the radar detection device 300 further includes a power supply chip, and the power supply chip is disposed on at least one antenna board among the first antenna board 310 , the second antenna board 320 and the second antenna board 330 .
  • the power chip is electrically connected to the first radio frequency chip 312 , the second radio frequency core 322 and the third radio frequency core 332 , and is used to supply power to the first radio frequency chip 312 , the second radio frequency core 322 and the third radio frequency core 332 .
  • the first radio frequency chip 312 is used to convert radio signals into electromagnetic waves of a certain waveform, and send them out through the first antenna 311; Resonance is sent out; the third radio frequency chip 332 is used to convert the radio signal into an electromagnetic wave with a certain waveform, and resonate and send out through the third antenna 331 .
  • the radar detection device further includes a baseband board, and the first antenna board, the second antenna board and the third antenna board are connected to the baseband board.
  • the power chip and the first radio frequency chip 312 , the second radio frequency core 322 and the third radio frequency core 332 electrically connected to the power chip are all disposed on the baseband board.
  • the base tape board 520 includes a first substrate 521 , a second substrate 522 and a third substrate 523 which are connected by bending in sequence.
  • the surfaces of the first substrate 521 , the second substrate 522 and the third substrate 523 are respectively disposed opposite to the surfaces of the first antenna plate 511 , the second antenna plate 512 and the third antenna plate 513 .
  • the first substrate 521 is arranged in parallel with the first antenna plate 511
  • the second substrate 522 is arranged in parallel with the second antenna plate 512
  • the third substrate 523 is arranged in parallel with the third antenna plate 513 .
  • the base tape board 74 includes a first substrate 741 , a second substrate 742 and a third substrate 743 which are connected by bending in sequence.
  • One ends of the first antenna plate 71 , the second antenna plate 72 and the third antenna plate 73 are respectively connected to the same side edges of the first substrate 741 , the second substrate 742 and the third substrate 743 .
  • the included angles formed by the first antenna board 71 , the second antenna board 72 and the third antenna board 73 and the baseband board may be any suitable angles.
  • the first antenna plate 71, the second antenna plate 72 and the third antenna plate 73 may be vertically connected to the first substrate 741, the second substrate 742 and the third substrate 743, respectively.
  • the radar detection device further includes a floating connector, for example, the floating connector 530 in FIG. 5 and the floating connector 75 in FIG. 7 .
  • the floating connector is used to connect the first antenna board, the second antenna board and the third antenna board to the baseband board.
  • the first antenna board 71 , the second antenna board 72 and the second antenna board 73 are connected to the first baseband board 741 , the second baseband board 742 and the second baseband board through the three floating connectors 55 respectively.
  • the 743 is connected to realize the SPI (Serial Peripheral Interface, serial peripheral interface), UART (Universal Asynchronous Receiver/Transmitter, Universal Asynchronous Receiver/Transmitter) between the first antenna board 71, the second antenna board 72 and the third antenna board 73 transmitter) communication, the first antenna board 71, the second antenna board 72 and the third antenna board 73 adopt the master-slave mode, and output the detection signal to the outside through a CAN or CANFD interface.
  • SPI Serial Peripheral Interface, serial peripheral interface
  • UART Universal Asynchronous Receiver/Transmitter, Universal Asynchronous Receiver/Transmitter
  • the radar detection device further includes an angle adjustment device
  • the angle adjustment device includes a first angle adjustment device and a second angle adjustment device, wherein the first angle adjustment device is connected to the first antenna plate and the second antenna plate , the second angle adjustment device is connected to the second antenna board and the third antenna board.
  • the first angle adjusting device is used for adjusting the included angle between the first antenna board and the second antenna board.
  • the second angle adjusting device is used to adjust the included angle between the second antenna board and the third antenna board.
  • the included angle between the second antenna plate and the third antenna plate), the driving device is used to supply power to the memory alloy.
  • the elastic device and the memory alloy are located on the same side of the first antenna plate and the second antenna plate (or the second antenna plate and the third antenna plate), and the elastic device can be a compression spring, an elastic sheet, or a torsion spring.
  • An embodiment of the present invention further provides a radar detection system, the radar detection system includes the above-mentioned radar detection device and a mobile device, wherein the radar detection device is installed on the mobile device and is communicatively connected to the mobile device.
  • the mobile device in this embodiment may specifically be a vehicle, a mobile robot, or an unmanned aerial vehicle.
  • the radar detection device is used to detect the target appearing in front of or behind the mobile device, for example, the speed, distance and angle of the target relative to the radar detection device can be detected.
  • the radar detection system includes the above-mentioned radar detection device and a mobile device, wherein the radar detection device is installed on the mobile device and is communicatively connected to the mobile device.
  • the mobile device in this embodiment may specifically be a vehicle, a mobile robot, or an unmanned aerial vehicle.
  • the radar detection device is used to detect the target appearing in front of or behind the mobile device, for example, the speed, distance and angle of the target relative to the radar detection device can be detected.
  • the prior art please
  • Embodiments of the present invention provide a radar detection device and a radar detection system, including a first detection component, a second detection component, and a third detection component arranged in sequence; wherein, the first electromagnetic wave emitted by the first detection component has a first detection component.

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

La présente invention concerne un dispositif de détection radar et un système de détection radar. Le dispositif de détection radar (100) comprend un premier composant de détection (101), un deuxième composant de détection (102) et un troisième composant de détection (103). Une première onde électromagnétique émise par le premier composant de détection (101) est pourvue d'un premier champ de vision, une deuxième onde électromagnétique émise par le deuxième composant de détection (102) est pourvue d'un deuxième champ de vision, et une troisième onde électromagnétique émise par le troisième composant de détection (103) est pourvue d'un troisième champ de vision. Du fait que la limite du premier champ de vision chevauche celle du deuxième champ de vision ou qu'une zone de détection couverte par le premier champ de vision chevauche partiellement celle du deuxième champ de vision, et que la limite du deuxième champ de vision chevauche celle du troisième champ de vision ou que la zone de détection couverte par le premier champ de vision chevauche partiellement celle du deuxième champ de vision, les zones de détection du premier composant de détection (101), du deuxième composant de détection (102) et du troisième composant de détection (103) peuvent se superposer pour former une zone de détection étendue, ce qui permet de réduire les points aveugles de détection. Le système de détection radar comprend le dispositif de détection radar.
PCT/CN2021/125394 2020-10-22 2021-10-21 Dispositif de détection radar et système de détection radar WO2022083699A1 (fr)

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CN202011140685.1 2020-10-22
CN202011140685.1A CN112213720A (zh) 2020-10-22 2020-10-22 一种雷达探测装置和雷达探测系统

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CN112213720A (zh) * 2020-10-22 2021-01-12 深圳市道通科技股份有限公司 一种雷达探测装置和雷达探测系统
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