WO2022184060A1 - 一种雷达及预警系统 - Google Patents

一种雷达及预警系统 Download PDF

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Publication number
WO2022184060A1
WO2022184060A1 PCT/CN2022/078646 CN2022078646W WO2022184060A1 WO 2022184060 A1 WO2022184060 A1 WO 2022184060A1 CN 2022078646 W CN2022078646 W CN 2022078646W WO 2022184060 A1 WO2022184060 A1 WO 2022184060A1
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WO
WIPO (PCT)
Prior art keywords
radar
detection
antenna
millimeter wave
radio frequency
Prior art date
Application number
PCT/CN2022/078646
Other languages
English (en)
French (fr)
Inventor
马彦文
林中山
Original Assignee
深圳市道通智能汽车有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市道通智能汽车有限公司 filed Critical 深圳市道通智能汽车有限公司
Priority to EP22762524.1A priority Critical patent/EP4293388A1/en
Priority to US18/279,882 priority patent/US20240159863A1/en
Publication of WO2022184060A1 publication Critical patent/WO2022184060A1/zh

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Classifications

    • 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
    • G01S7/027—Constructional details of housings, e.g. form, type, material or ruggedness
    • 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
    • G01S7/027—Constructional details of housings, e.g. form, type, material or ruggedness
    • G01S7/028—Miniaturisation, e.g. surface mounted device [SMD] packaging or housings
    • 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
    • G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
    • H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
    • 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 embodiments of the present application relate to the technical field of radar, and in particular, to a radar and an early warning system.
  • millimeter-wave radar can measure the distance, angle, speed, etc.
  • millimeter-wave radars all use a single antenna plate, and the detection angles of the radars are all less than 180 degrees, which cannot meet the detection range of the front and rear distances of the side of commercial vehicles, resulting in millimeter wave radars.
  • the wave radar has a large detection blind area, which leads to a large safety hazard in the use of the millimeter wave radar.
  • the embodiments of the present application aim to provide a radar and an early warning system, so as to increase the detection field angle range of the millimeter-wave radar and improve the safety performance of the entire vehicle.
  • the application provides a radar comprising:
  • the first detection component accommodated in the casing, and electrically connected to the power supply component, the first detection component includes a first antenna board and a first antenna mounted on the first antenna board, the The first antenna is used for transmitting a first millimeter wave, and the first millimeter wave has a first detection angle of view;
  • a second detection component is accommodated in the housing and is electrically connected to the power supply component.
  • the second detection component includes a second antenna board and a second antenna mounted on the second antenna board.
  • the second antenna plate and the first antenna plate are arranged at a preset angle, the second antenna is used for transmitting a second millimeter wave, and the second millimeter wave has a second detection angle of view;
  • a connector which is detachably mounted on the connection port and is electrically connected with the power supply assembly
  • the emission regions of the first millimeter wave and the second millimeter wave have intersecting parts, and the detection field angle after the superposition of the first detection angle of view and the second detection angle of view is greater than or equal to 180 degrees.
  • one end of the connector connected to the connection port is provided with an elastic buckle, and the elastic buckle is fastened to the connection port.
  • 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 radio frequency antenna;
  • the first radio frequency chip and the second radio frequency chip are electrically connected.
  • the power supply assembly includes a baseband board and a power supply chip disposed on the baseband board, the first antenna board and the second antenna board are both electrically connected to the baseband board, the The power chip is electrically connected to the first radio frequency chip and the second radio frequency chip, respectively.
  • the power supply assembly further includes a first connection base and a second connection base, the first connection base and the second connection base are both 90-degree corner connection bases, and the first antenna board passes through The first connection base is electrically connected to the power board, and the second antenna board is electrically connected to the power board through the second connection base.
  • the casing includes a base and an upper cover, the upper cover is disposed on the base, and the first detection component, the second detection component and the power supply component are all accommodated in the upper cover and the upper cover. inside the cavity enclosed by the base;
  • connection port is arranged on the base
  • the upper cover is made of a material that can penetrate millimeter waves
  • the base is made of aluminum alloy material.
  • the base includes a base body and a protrusion extending from the middle of the base body to the upper cover, and the first antenna plate is mounted on a first end of the protrusion and a first end of the base body. Between one end, the second antenna plate is installed between the second end of the protrusion and the second end of the base body.
  • the shape of the upper cover is adapted to the shape enclosed by the first detection component, the second detection component and the power supply component.
  • the radar includes a heat dissipation assembly, the heat dissipation assembly is accommodated in the housing, and the heat dissipation assembly includes a first thermal pad, a second thermal pad, a first heat sink and a second heat sink, all of which The first thermal pad is installed between the first radio frequency chip and the first heat sink, the second thermal pad is installed between the second chip and the second heat sink, the first Both the heat sink and the second heat sink are mounted on the base.
  • the radar further includes a sealing ring, a sealing groove is disposed on the base, the sealing ring is disposed in the sealing groove, and when the upper cover is disposed on the base, the upper The inner wall of the cover is in abutment with the sealing ring.
  • a sealing ring is embedded in the connection port, and when the connector is inserted into the connection port, the connector abuts against the sealing ring.
  • the value of the first detection angle of view is greater than or equal to 90 degrees and less than or equal to 150 degrees;
  • the value of the second detection angle of view is greater than or equal to 90 degrees and less than or equal to 150 degrees;
  • the preset angle is greater than or equal to 90 degrees and less than or equal to 150 degrees.
  • the embodiments of the present application also provide an early warning system, including the above-mentioned radar; and,
  • the radar is electrically connected with the sound early warning device and/or display screen early warning device.
  • the beneficial effects of the present application by setting the first detection component and the second detection component, the detection field of view after the first detection angle of view and the second detection angle of view are superimposed is greater than or equal to 180 degrees, which increases the radar detection field of view angle. It can improve the driving safety of the car.
  • the connection between the connector and the shell is a detachable connection, which is convenient for the disassembly and maintenance of the connector, thereby saving the maintenance cost of the radar and avoiding the replacement of the entire radar when the connector is damaged. .
  • FIG. 1 is a structural perspective view of a radar according to an embodiment of the present application
  • Figure 2 is an exploded view of the radar shown in Figure 1;
  • FIG. 3 is a schematic diagram of the radar detection field of view shown in FIG. 1;
  • FIG. 4 is a schematic diagram of the installation of the power supply assembly, the first detection assembly and the second detection assembly in the radar shown in FIG. 1;
  • Fig. 5 is another schematic diagram of the radar detection field of view shown in Fig. 1;
  • FIG. 6 is a schematic diagram of a traditional radar detection field of view
  • Fig. 7 is the schematic diagram of another viewing angle of the structure shown in Fig. 4;
  • Fig. 8 is a system block diagram of the radar shown in Fig. 1;
  • Fig. 9 is a partial exploded view of the radar shown in Fig. 1;
  • FIG. 10 is a cross-sectional view of the radar shown in FIG. 1 .
  • a radar 100 is provided in an embodiment of the present application.
  • the radar 100 is installed in a car and is used to detect the visual blind spots on the left and right sides of the car, assist the driver to accurately identify obstacles in the blind spot, and avoid obstacles in the blind spot.
  • the vehicle collided with an obstacle while driving.
  • FIG. 2 is an exploded view of the radar 100 according to an embodiment of the present application.
  • the radar 100 includes a housing 10 , a first detection component 20 , a second detection component 30 , a power supply component 40 and a connector 50 .
  • a detection component 20 , the first detection component 20 and the power supply component 40 are all accommodated in the housing 10 , and the first detection component 20 and the second detection component 30 are both electrically connected to the power supply component 40
  • the power source assembly 40 is used for supplying power to the first detection assembly 20 and the second detection assembly 30 ;
  • the connector 50 is installed outside the casing 10 and is electrically connected to the power source assembly 40 .
  • the plug-in 50 is used for the electrical connection between the power supply assembly 40 and external equipment.
  • the connector 50 is connected to a power supply device, so that the power supply device can provide the power supply assembly 40 with working current and/or working voltage.
  • the radar 100 is installed on the vehicle through the casing 10 .
  • the first detection component 20 and the second detection component 30 are used to transmit and receive the millimeter wave (millimeter electromagnetic wave) reflected by the obstacle, and analyze the relevant information such as the position, movement speed and direction of the obstacle through a certain algorithm. For example, if the radar 100 is installed on the vehicle, the first detection component 20 and the second detection component 30 detect the position, movement speed and direction of the obstacle, so as to provide information conditions for the vehicle control system. The information fed back by the first detection component 20 and the second detection component 30 makes corresponding active safety measures or selects an appropriate automatic driving strategy.
  • millimeter wave millimeter electromagnetic wave
  • the first detection component 20 is configured to transmit a first millimeter wave 201 and receive the first millimeter wave reflected by obstacles, the first millimeter wave 201 has a first detection angle of view, and the first millimeter wave 201 has a first detection angle.
  • the millimeter wave 201 is used to detect obstacles within a first detection angle of view, and the first detection angle of view is an angular range detectable by the first millimeter wave 201 .
  • the second detection component 30 is used for transmitting a second millimeter wave 301 and receiving the second millimeter wave reflected by obstacles, the second millimeter wave 301 has a second detection angle of view, and the second millimeter wave 301 is used for Obstacles within a second detection angle of view are detected, and the second detection angle of view is an angular range detectable by the second millimeter wave 301 .
  • the emission areas of the first millimeter wave 201 and the second millimeter wave 301 have intersecting parts, and the detection field angle after the first detection angle of view and the second detection angle of view are superimposed is greater than or equal to 180 degrees, and the first detection angle of view is greater than or equal to 180 degrees.
  • the detection field of view after the angle of view and the second detection angle of view are superimposed is the detection field of view of the radar 100 .
  • the superposition of the first detection angle of view and the second detection angle of view means that the central axes of the first millimeter wave 201 and the second millimeter wave 301 are located in the same plane and do not overlap.
  • the sum of the sizes of the first detection angle of view and the second detection angle of view subtracts the detection angle of view of the overlapping portion.
  • intersection portion may be zero.
  • the size of the first detection angle of view and the second detection angle of view can be selected according to actual needs, and at the same time, the size of the first detection angle of view and the second detection angle of view can be equal or unequal, and only the first detection angle of view and the second detection angle of view.
  • the detection field of view after the superimposed detection angles may be greater than or equal to 180 degrees.
  • the first detection angle of view and the second detection angle of view are both 120 degrees, or the first detection angle of view is 130 degrees and the second detection angle of view is 120 degrees.
  • the housing 10 includes a base 11 and an upper cover 12 , the upper cover 12 covers the base 11 , the first detection component 20 , the second detection component 30 and the power supply component 40 are all It is accommodated in the cavity enclosed by the upper cover 12 and the base 11 to protect the detection component 20 , the second detection component 30 and the power supply component 40 ; the base 11 is provided with a connection port 13 .
  • the connection port 13 is used to connect the connector 50, so that the connection between the connector 50 and the housing 10 is detachable, which facilitates the disassembly and maintenance of the connector 50, thereby saving radar. 100 maintenance cost to avoid replacing the entire radar 100 when the connector is damaged.
  • the detachable connection can be a snap connection or a screw connection.
  • an elastic snap is provided at one end of the connector 50 connected to the connection port 13 , and the elastic snap is snapped to the connection port 13 . .
  • the connector is screwed to the connection port.
  • the base 11 is made of aluminum alloy material, which facilitates heat dissipation of the components (eg, the first detection component 20 , the second detection component 30 , etc.) inside the casing 10 and improves the service life of the radar 100 .
  • the upper cover 12 is made of a material that can penetrate millimeter waves, so that the first millimeter wave 201 and the second millimeter wave 301 can pass through the upper cover 12 and exit, and can also be reflected by obstacles The millimeter wave can penetrate the upper cover 12 and be received by the first detection component 20 and the second detection component 30 .
  • the base 11 includes a base body 111 and a protrusion 112 extending from the middle of the base body to the upper cover.
  • the first detection component 20 is mounted on the first end of the protrusion 112 and the upper cover.
  • the second detection component 30 is installed between the second end of the protrusion 112 and the second end of the base body 111 , so that the first millimeter wave
  • the emission area of 201 and the emission area of the second millimeter wave 301 have an intersection.
  • the protrusions 112 and the base body 111 are connected to the first detection component 20 and the second detection component 30 at the connecting points. Set with bevels.
  • the shape of the upper cover 12 is adapted to the shape enclosed by the first detection component 20 , the second detection component 30 and the power supply component 40 .
  • the first detection component 20 includes a first antenna board 21 , a first antenna 22 and a first radio frequency chip 23 mounted on the first antenna board 21 , and the first antenna board 21 is mounted on the first antenna board 21 .
  • the first radio frequency chip 23 is electrically connected to the first antenna 22 , and the first antenna 22 is used for transmitting the first
  • the millimeter wave 201 receives the first millimeter wave reflected by the obstacle, and the first radio frequency chip 23 is used to convert the radio signal communication into a certain radio signal waveform and send it out through the first antenna 22 resonance.
  • the second detection component 30 includes a second antenna board 31 , a second antenna 32 and a second radio frequency chip 33 mounted on the second antenna board 31 , and the second antenna board 31 is mounted on the protrusion 112 .
  • the second radio frequency chip 33 is electrically connected to the second antenna 32
  • the second radio frequency chip 33 and the first radio frequency chip 23 are electrically connected.
  • the second antenna 32 is used to transmit the second millimeter wave 301 and receive the second millimeter wave reflected by the obstacle
  • the second radio frequency chip 33 is used to convert the radio signal communication into a certain radio signal waveform , and sent out through the second antenna 32 resonance.
  • the detection angle of view after the superposition of the first detection angle of view of the first millimeter wave 201 and the second detection angle of view of the second millimeter wave 301 is greater than or equal to 180 degrees, so that the detection angle of view of the radar 100 is greater than or equal to 180 degrees It increases the detection range of the radar 100 and improves the safety of the vehicle.
  • the first antenna plate 21 and the second antenna plate 31 are both plate-shaped structures, so that the first antenna plate 21 and the second antenna plate 31 can be better fixed to the base 11 . .
  • the first antenna board 21 and the second antenna board 31 can be connected through a BTB (board to board, board-to-board connector) interface, or an FPC (Flexible Printed Circuit board, flexible printed circuit board) interface. connected to realize SPI (Serial Peripheral Interface, Serial Peripheral Interface), UART (Universal Asynchronous Receiver/Transmitter, Universal Asynchronous Receiver/Transmitter) communication between the first antenna plate 21 and the second antenna plate 31, the first An antenna board 21 and a second antenna board 31 adopt the master-slave mode, and output the detection signal to the outside through a CAN or CAN FD interface.
  • SPI Serial Peripheral Interface, Serial Peripheral Interface
  • UART Universal Asynchronous Receiver/Transmitter
  • UART Universal Asynchronous Receiver/Transmitter
  • the first radio frequency chip 23 and the second radio frequency chip 33 include a micro-control unit, and the micro-control unit is used to process and calculate the radio frequency signal reflected by the obstacle, so as to determine the position and movement of the vehicle and the obstacle. Information such as speed and direction.
  • the first antenna plate 21 and the second antenna plate 31 are symmetrically arranged, and the first antenna plate 21 and the second antenna plate 31 form a preset angle (for example, 120 °) setting, the angle between the first antenna plate 21 and the second antenna plate 31 can be adjusted by the height of the protrusion 112 .
  • a preset angle for example, 120 °
  • the angle between the first antenna plate 21 and the second antenna plate 31 can be adjusted by the height of the protrusion 112 .
  • an overlapping part A and a staggered part B appear, and the overlapping part A is the common part of the first millimeter wave 201 and the second millimeter wave 301 .
  • the staggered portion B is the detection blind area of the first millimeter wave 101 and the second millimeter wave 201 .
  • the detection blind spot of the staggered portion B is relatively close to the vehicle body, and the detection blind spot of the staggered portion B is located between the first millimeter wave 201 and the second millimeter wave 301 , and the area is small.
  • the first millimeter wave 201 and the second millimeter wave 301 can detect the 180-degree field of view on the side of the vehicle body.
  • obstacles will not suddenly appear in the detection blind spot of the staggered part B.
  • the detection blind area of the staggered part B is an unnecessary detection area.
  • the larger the first detection angle of view, the second detection angle of view and/or the preset included angle the smaller the detection blind area of the staggered portion B is. It should be noted that the larger the size of the first detection angle of view and the second detection angle of view, the greater the difficulty in developing the radar 100 under the premise of ensuring the detection accuracy of the first detection component 20 and the second detection component 30 .
  • FIG. 6 is a schematic diagram of a conventional radar 200 .
  • the conventional radar 200 has a detection blind spot and lacks installation redundancy because its detection field angle is 150 degrees, which is less than 180 degrees.
  • a detection blind spot will appear between the detection field of view of the radar 200 and the car, and there is a certain safety hazard, and the central axis of the field of view of the radar 200 needs to be the same as that of the car.
  • the central axis of the car is vertical, otherwise the detection orientation of the radar 200 will be deviated. Therefore, in the process of installing the radar 200 in a car, there is a high installation accuracy requirement, and after the installation is completed, it needs to be calibrated in a relatively harsh calibration environment, for example, a relatively open natural environment, straight road for dynamic driving calibration Wait.
  • the overall detection field angle of the radar 100 provided by the embodiment of the present application is greater than or equal to 180 degrees.
  • 180-degree detection the detection blind spot of the traditional radar 200 is eliminated, and the safety of the vehicle is improved;
  • the installation is carried out within the redundancy range of ⁇ x degrees (as shown in Figure 5). Under the condition of satisfying the detection field angle, the installation accuracy requirements are reduced and the installation speed is improved.
  • the value of x depends on the detection field of view of the radar 100. For example, when the detection field of view of the radar 100 is 190 degrees, the x value is 5, and when the detection field of view of the radar 100 is 200 degrees, x The value is 10.
  • the value of the first detection angle of view is greater than or equal to 90 degrees and less than or equal to 150 degrees; the value of the second detection angle of view is greater than or equal to 90 degrees and less than or equal to 150 degrees; the preset clip The value of the angle is greater than 90 degrees and less than or equal to 150 degrees.
  • the sizes of the first detection angle of view and the second detection angle of view are both 120 degrees, and the preset angle is 120 degrees.
  • the detection accuracy of the first detection assembly 20 and the second detection assembly 30 is ensured, a balance between detection accuracy and development difficulty is achieved, and the detection blind area of the staggered part B is reduced.
  • the starting positions of the first millimeter wave 201 and the second millimeter wave 301 are located on the same horizontal line, and the detection field of view after the first detection angle of view and the second detection angle of view are superimposed is equal to 190 degrees.
  • the effective detection field angle is 180 degrees, and the part beyond 180 degrees is the installation redundancy of the radar 100.
  • the radar 100 can be installed within the redundancy range of ⁇ 5 degrees in the horizontal direction.
  • the power supply assembly 40 includes a baseband board 41 and a power supply chip 42 disposed on the baseband board 41 .
  • the power supply chip 42 is electrically connected to the first radio frequency chip 23 and the second radio frequency chip 33 respectively. connection, the power chip 42 is used to supply power to the first radio frequency chip 23 and the second radio frequency chip 33, and at the same time, the power chip 42 is also used between the first radio frequency chip 23 and the second radio frequency chip 33 data exchange.
  • the first antenna 22 transmits the first millimeter wave, receives the first millimeter wave reflected by the obstacle, and processes the first data through the micro-control unit of the first radio frequency chip 23 to obtain the first data
  • the second antenna 32 transmits the second millimeter wave, receives the second millimeter wave reflected by the obstacle, and processes the second data through the micro-control unit of the second radio frequency chip 23, and the power chip 42 passes the The first data and the second data determine the relative distance, relative speed, angle and movement direction of the vehicle and the obstacle.
  • the power supply assembly 40 further includes a connection seat (as shown in FIG. 7 ), the connection seat includes a first connection seat 43 and a second connection seat 44 , and the first connection seat 43 and the second connection seat 44 are both. It is a 90-degree corner connector, the first antenna board 21 is electrically connected to the baseband board 41 through the first connector 43 , and the second antenna board 31 is connected to the baseband through the second connector 44 .
  • the board 41 is electrically connected to realize SPI (Serial Peripheral Interface, serial peripheral interface) and UART (Universal Asynchronous Receiver/Transmitter, Universal Asynchronous Receiver/Transmitter) communication between the first antenna board 21 and the second antenna board 31,
  • SPI Serial Peripheral Interface, serial peripheral interface
  • UART Universal Asynchronous Receiver/Transmitter, Universal Asynchronous Receiver/Transmitter
  • the first antenna board 21 and the second antenna board 31 adopt the master-slave mode, and output the detection signal to the outside through a CAN or CAN FD interface.
  • Both the first connection base 43 and the second connection base 44 are 90-degree corner connection bases, so that both the first antenna board 21 and the second antenna board 31 are vertically connected to the baseband board 41 , and the connection is firmer.
  • the shape of the upper cover 12 is adapted to the shape enclosed by the first antenna board 21 , the second antenna board 31 and the baseband board 41 , so as to reduce the overall volume of the radar 100 and save costs.
  • the radar 100 further includes a heat dissipation assembly 60 , the heat dissipation assembly 60 is accommodated in the casing 10 , the heat dissipation assembly 60 includes a thermal pad and a heat dissipation member, and the heat dissipation member is mounted on the casing 10.
  • the thermal pad includes a first thermal pad 61 and a second thermal pad 62
  • the heat sink includes a first thermal pad 63 and a second thermal pad 64
  • the first thermal pad 61 is installed on the first thermal pad 61 .
  • the second thermal pad 62 is installed between the second radio frequency chip 33 and the second heat dissipation member 64, the first heat dissipation member 63 and the second heat dissipation member 64.
  • the two heat sinks 64 are both mounted on the base 11 .
  • the first thermal pad 61 is used to conduct the heat generated by the first radio frequency chip 23 to the first heat sink 63, and then dissipate through the base 11;
  • the heat generated by the second radio frequency chip 33 is conducted to the second heat sink 64 and then dissipated through the base 11 .
  • thermal pad and the heat sink can also be used for heat conduction and heat dissipation of other components in the casing 10 , so as to protect the electronic components in the casing 10 and enhance the stability of the radar 100 in use. , improve the service life of the radar.
  • the radar 100 includes a sealing ring 70 , a sealing groove 111 is formed on the base body 11 , the sealing ring 70 is installed in the sealing groove 111 , and the upper cover 12 is covered on the When the base 11 is on, the inner wall of the upper cover 12 is in contact with the sealing ring 70 to seal the connection between the upper cover 12 and the base 11 through the sealing ring 70 to prevent dust and water vapor from infiltrating Inside the casing 10 , the components in the casing 10 are damaged.
  • the sealing ring 70 may be made of rubber.
  • the radar 100 further includes a sealing ring 80 (as shown in FIG. 9 ).
  • the sealing ring 80 is embedded in the connection port 13 .
  • the connector 50 Abutting with the sealing ring 80 to seal the connection between the connector 50 and the connection port 13 through the sealing ring 80 to prevent dust and water vapor from penetrating into the connection port 13 and damaging the connection port 13 .
  • Plugin 50 When the connector 50 is inserted into the connection port 13 , the connector 50 Abutting with the sealing ring 80 to seal the connection between the connector 50 and the connection port 13 through the sealing ring 80 to prevent dust and water vapor from penetrating into the connection port 13 and damaging the connection port 13 .
  • the embodiment of the present application also provides an early warning system, the early warning system includes an acoustic early warning device and/or a display screen early warning device, and the above-mentioned radar 100, the radar 100 is combined with the acoustic early warning device, the optical early warning device, The vibration early warning device and/or the display screen early warning device are electrically connected, and the radar 100 is used to measure the presence or absence of obstacles, distance measurement, speed measurement and/or azimuth measurement of the target to be measured; the acoustic early warning device is used for the radar 100 to detect obstacles When the distance between the target and the vehicle body is less than a preset value, an alarm sound is issued; the display screen early warning device is used to display a warning interface when the radar 100 detects that the distance between the obstacle target and the vehicle body is less than the preset value.
  • the early warning system further includes a light early warning device or a vibration early warning device, and the light early warning device is used to issue a flashing warning light when the radar 100 detects that the distance between the obstacle target and the vehicle body is less than a preset value ;
  • the vibration early warning device is used to generate vibration when the radar 100 detects that the distance between the obstacle target and the vehicle body is less than a preset value.
  • the vibration early warning device is installed on the steering wheel of the car.
  • sound early warning device and display screen early warning device please refer to the prior art, which will not be repeated here.
  • a radar and early warning system includes a casing 10, a first detection assembly 20, a second detection assembly 30 and a connector 50.
  • the casing 10 is provided with a connection port 13, and the connector is detachably mounted on the connection port. 13;
  • the first detection component 20 includes a first antenna plate 21 and a first antenna 22 mounted on the first antenna plate 21, the first antenna 22 is used for transmitting the first millimeter wave 201, and the first millimeter wave 201 has a first detection Viewing angle;
  • the second detection component 30 includes a second antenna plate 31 and a second antenna 32 mounted on the second antenna plate 31, the second antenna 32 is used for transmitting the second millimeter wave 301, and the second millimeter wave 301 has a second detection Angle of view; the emission areas of the first millimeter wave and the second millimeter wave intersect, and the detection field of view after the superposition of the first detection angle and the second detection angle is greater than or equal to 180 degrees, so that the radar can perform a field of view of 180 degrees.
  • the high-speed detection improves the driving safety of the vehicle.
  • the connection between the connector and the housing is detachable, which facilitates the disassembly and maintenance of the connector 50, thereby saving the maintenance cost of the radar 100 and avoiding the damage of the connector. Replace the entire radar 100.

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Abstract

本申请实施方式公开了一种雷达以及预警系统，包括壳体、第一探测组件、第二探测组件及接插件，壳体上设置有连接口，接插件可拆卸地安装于连接口；第一探测组件包括第一天线板和安装于第一天线板上的第一天线，第一天线用于发射第一毫米波，第一毫米波具有第一探测视角；第二探测组件包括第二天线板和安装于第二天线板上的第二天线，第二天线用于发射第二毫米波，第二毫米波具有第二探测视角；第一毫米波和第二毫米波的发射区域有交叉部分，且第一探测视角和第二探测视角叠加后的探测视角大于或等于180度。通过以上设置，便于接插件的拆装及维修，从而可节约雷达的维修成本，避免接插件损坏时更换整个雷达同时也可提高雷达的探测范围。

Description

一种雷达及预警系统
本申请要求于2021年03月04日提交中国专利局、申请号为202120472012.X、申请名称为“一种雷达及预警系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及雷达技术领域，尤其涉及一种雷达及预警系统。
背景技术
随着智能驾驶时代的到来，智能汽车对于安全性的要求越来越高，汽车需要更多的传感器才能保证驾驶员的安全以及探测识别车辆周围环境的能力。毫米波雷达作为智能驾驶中重要的感知元件，可以测量与被测物体之间的距离、角度、速度等。
在实现本申请的过程中，发明人发现现有技术中，毫米波雷达都采用单个天线板，雷达的探测角度都小于180度，无法满足商用车侧向前后距离范围内的探测，从而导致毫米波雷达出现较大的探测盲区，导致毫米波雷达在使用过程中存在较大的安全隐患。
发明内容
本申请实施例旨在提供一种雷达及预警系统，以增大毫米波雷达的探测视场角范围，提高整车的安全性能。
本申请提供一种雷达包括：
壳体；
电源组件，收容于所述壳体内；
第一探测组件，收容于所述壳体内，且电性连接于所述电源组件，所述第一探测组件包括第一天线板和安装于所述第一天线板上的第一天线，所述第一天线用于发射第一毫米波，所述第一毫米波具有第一探测视角；
第二探测组件，收容于所述壳体内，且电性连接于所述电源组件，所述第 二探测组件包括第二天线板和安装于所述第二天线板上的第二天线，所述第二天线板与所述第一天线板呈预设角度设置，所述第二天线用于发射第二毫米波，所述第二毫米波具有第二探测视角；
接插件，所述接插件可拆卸地安装于所述连接口并与所述电源组件电性连接；
其中，所述第一毫米波和第二毫米波的发射区域有交叉部分，且所述第一探测视角和第二探测视角叠加后的探测视场角大于或等于180度。
在一些实施例中，所述接插件与所述连接口连接的一端设置有弹性卡扣，所述弹性卡扣卡接与所述连接口。。
在一些实施例中，所述第一探测组件还包括第一射频芯片，所述第一射频芯片设置于所述第一天线板，所述第一射频芯片与所述第一天线电性连接；
所述第二探测组件还包括第二射频芯片，所述第二射频芯片设置于所述第二天线板，所述第二射频芯片与所述第二射频天线电性连接；
所述第一射频芯片和第二射频芯片电性连接。
在一些实施例中，所述电源组件包括基带板和设置于所述基带板上的电源芯片，所述第一天线板及所述第二天线板均电性连接于所述基带板，所述电源芯片分别与所述第一射频芯片及第二射频芯片电性连接。
在一些实施例中，所述电源组件还包括第一连接座和第二连接座，所述第一连接座和所述第二连接座均为90度转角连接座，所述第一天线板通过所述第一连接座与所述电源板电性连接，所述第二天线板通过所述第二连接座与所述电源板电性连接。
在一些实施例中，所述壳体包括底座及上盖，所述上盖盖设于所述底座，所述第一探测组件、第二探测组件及电源组件均收容于所述上盖及所述底座围合形成的腔体内；
所述连接口设置于所述底座；
所述上盖采用可穿透毫米波的材料制成；
所述底座采用铝合金材质制成。
在一些实施例中，所述底座包括底座本体及自所述底座本体中部向所述上盖延伸的突起，所述第一天线板安装于所述突起的第一端与所述底座本体的第 一端之间，所述第二天线板安装于所述突起的第二端与所述底座本体的第二端之间。
在一些实施例中，所述上盖的形状与所述第一探测组件、第二探测组件及电源组件围合的形状相适配。
在一些实施例中，所述雷达包括散热组件，所述散热组件收容于所述壳体，所述散热组件包括第一导热垫、第二导热垫、第一散热件及第二散热件，所述第一导热垫安装于所述第一射频芯片与所述第一散热件之间，所述第二导热垫安装于所述第二芯片与所述第二散热件之间，所述第一散热件及第二散热件均安装于所述底座。
在一些实施例中，所述雷达还包括密封环，所述底座上设置有密封槽，所述密封环设置于所述密封槽，在所述上盖设于所述底座上时，所述上盖的内壁与所述密封环抵接。
在一些实施例中，所述连接口内嵌有密封圈，在所述接插件插入所述连接口时，所述接插件与所述密封圈抵接。
在一些实施例中，所述第一探测视角的值大于或等于90度，且小于或等于150度；
所述第二探测视角的值大于或等于90度，且小于或等于150度；
所述预设角度大于或等于90度，且小于或等于150度。
本申请实施例还提供一种预警系统，包括上述的雷达；以及，
声预警器和/或显示屏预警器，所述雷达与所述声预警器和/或显示屏预警器电性连接。
本申请的有益效果：通过设置第一探测组件及第二探测组件，使得第一探测视角和第二探测视角叠加后的探测视场角大于或等于180度，增大了雷达探测视场角的范围，提高了汽车行驶的安全性，同时，接插件与壳体间的连接为可拆卸连接，便于接插件的拆装及维修，从而可节约雷达的维修成本，避免接插件损坏时更换整个雷达。
附图说明
一个或多个实施例通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1是本申请一实施例提供的一种雷达的结构立体图；
图2是图1所示雷达的爆炸图；
图3是图1所示雷达探测视场角的示意图；
图4是图1所示雷达中电源组件与第一探测组件及第二探测组件的安装示意图；
图5是图1所示雷达探测视场角的另一示意图；
图6是传统雷达探测视场角的示意图；
图7是图4所示结构的另一视角的示意图；
图8是图1所示雷达的系统框图；
图9是图1所示雷达的部分爆炸图；
图10是图1所示雷达的剖视图。
具体实施方式
为了便于理解本申请，下面结合附图和具体实施例，对本申请进行更详细的说明。需要说明的是，当元件被表述“固定于”/“安装于”另一个元件，它可以直接在另一个元件上、或者其间可以存在一个或多个居中的元件。当一个元件被表述“连接”另一个元件，它可以是直接连接到另一个元件、或者其间可以存在一个或多个居中的元件。本说明书所使用的术语“上”、“下”、“内”、“外”、“垂直的”、“水平的”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。
除非另有定义，本说明书所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是用于限制本申请。本说明书所使用的 术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
此外，下面所描述的本申请不同实施例中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。
请参阅图1，为本申请实施例提供的一种雷达100，所述雷达100安装于汽车，用于对汽车左右两侧的视觉盲区进行探测，协助驾驶员准确识别盲区内的障碍物，避免车辆在行驶过程中与障碍物发生碰撞。
请参阅图2，为本申请实施例提供的雷达100的爆炸图，所述雷达100包括壳体10、第一探测组件20、第二探测组件30、电源组件40及接插件50，所述第一探测组件20、第一探测组件20及所述电源组件40均收容于所述壳体10内，所述第一探测组件20和第二探测组件30均电性连接于所述电源组件40，所述电源组件40用于为所述第一探测组件20及第二探测组件30供电；所述接插件50安装于所述壳体10外并与所述电源组件40电性连接，所述接插件50用于所述电源组件40与外部设备电连接，例如所述接插件50连接于电源装置，从而电源装置能够为所述电源组件40提供工作电流和/或工作电压。
在本实施例中，所述雷达100通过所述壳体10安装于汽车上。所述第一探测组件20和第二探测组件30用于通过发射和接收经障碍物反射的毫米波(毫米电磁波)，通过一定的算法解析出障碍物的位置、运动速度和方向等相关信息。例如，在车辆上安装有所述雷达100，所述第一探测组件20和第二探测组件30侦测障碍物的位置、运动速度和方向，从而为车辆控制系统提供信息条件，车辆控制系统根据所述第一探测组件20及第二探测组件30反馈的信息做出相应的主动安全措施或者选择适当的自动驾驶策略。
请参阅图3，所述第一探测组件20用于发射第一毫米波201，并接收经障碍物反射的第一毫米波，所述第一毫米波201具有第一探测视角，所述第一毫米波201用于探测第一探测视角内的障碍物，第一探测视角为所述第一毫米波201可探测到的角度范围。所述第二探测组件30用于发射第二毫米波301，并接收经障碍物反射的第二毫米波，所述第二毫米波301具有第二探测视角，所述第二毫米波301用于探测第二探测视角内的障碍物，第二探测视角为第二毫米波301可探测到的角度范围。其中，所述第一毫米波201和第二毫米波301的发射区域有交叉部分，且第一探测视角和第二探测视角叠加后的探测视场角 大于或等于180度，所述第一探测视角和第二探测视角叠加后的探测视场角即为所述雷达100的探测视场角。
在本申请实施例中，第一探测视角和第二探测视角叠加是指，第一毫米波201和第二毫米波301的中心轴位于同一平面内且不相重合，同时，所述第一毫米波201和第二毫米波301的相邻两边相交或重合时，第一探测视角和第二探测视角的大小的总和减去二者重合部分的探测视角。
可以理解，所述交叉部分可以为0。
可以理解的是，第一探测视角和第二探测视角的大小可以根据实际需要选择，同时，第一探测视角和第二探测视角的大小可以相等或不等，只需第一探测视角和第二探测视角叠加后的探测视场角大于或等于180度即可，例如，第一探测视角为和第二探测视角均为120度，或者，第一探测视角为130度，第二探测视角为120度。
请继续参阅图2，所述壳体10包括底座11及上盖12，所述上盖12盖设于所述底座11，所述第一探测组件20、第二探测组件30及电源组件40均收容于所述上盖12及所述底座11围合形成的腔体内，以保护所述探测组件20、第二探测组件30及电源组件40；所述底座11上设置有连接口13，所述连接口13用于连接所述接插件50，使得所述接插件50与所述壳体10之间的连接为可拆卸地连接，便于所述接插件50的拆装及维修，从而可节约雷达100的维修成本，避免接插件损坏时更换整个雷达100。
所述可拆卸地连接可为卡扣连接或螺纹连接等，例如所述接插件50与所述连接口13连接的一端设置有弹性卡扣，所述弹性卡扣卡接与所述连接口13。或者所述接插件与所述连接口螺纹连接。
所述底座11采用铝合金材质制成，有利于所述壳体10内部的零部件(如第一探测组件20、第二探测组件30等)的散热，提高所述雷达100的使用寿命。所述上盖12采用可穿透毫米波的材料制成，使得所述第一毫米波201和所述第二毫米波301可穿透所述上盖12出射，同时也可使得经障碍物反射的毫米波能穿透所述上盖12被所述第一探测组件20及第二探测组件30所接收。
在一些实施例中，所述底座11包括底座本体111和自所述底座本体的中部向所述上盖延伸的突起112，所述第一探测组件20安装于所述突起112的 第一端与所述底座本体111的第一端之间，所述第二探测组件30安装于所述突起112的第二端与所述底座本体111的第二端之间，以使所述第一毫米波201的发射区域和所述第二毫米波301的发射区域有交叉部分。
在一些实施例中，为方便所述第一探测组件20及第二探测组件30的安装，所述突起112及底座本体111上与所述第一探测组件20及第二探测组件30相连接处设置有斜面。
在一些实施例中，为减小所述雷达100的体积，所述上盖12的形状与所述第一探测组件20、第二探测组件30及电源组件40围合形成的形状相适配。
请参阅图4，所述第一探测组件20包括第一天线板21和安装于所述第一天线板21上的第一天线22及第一射频芯片23，所述第一天线板21安装于所述突起112的第一端与所述底座本体111的第一端之间，所述第一射频芯片23与所述第一天线22电性连接，所述第一天线22用于发射第一毫米波201并接收经障碍物反射的第一毫米波，所述第一射频芯片23用于将无线电信号通信转换成一定的无线电信号波形，并通过所述第一天线22谐振发送出去。
所述第二探测组件30包括第二天线板31和安装于所述第二天线板31上的第二天线32及第二射频芯片33，所述第二天线板31安装于所述突起112的第二端与所述底座本体111的第二端之间，所述第二射频芯片33与所述第二天线32电性连接，且所述第二射频芯片33和所述第一射频芯片23电性连接，所述第二天线32用于发射第二毫米波301并接收经障碍物反射的第二毫米波，所述第二射频芯片33用于将无线电信号通信转换成一定的无线电信号波形，并通过所述第二天线32谐振发送出去。其中，所述第一毫米波201的第一探测视角和第二毫米波301的第二探测视角叠加后的探测视场角大于或等于180度，使得所述雷达100的探测视角大于或等于180度，增大了雷达100的探测范围，提高了汽车的安全性。
在本实施例中，所述第一天线板21及第二天线板31均为板状结构，以方便所述第一天线板21及第二天线板31能更好的固定于所述底座11。
在具体实施过程中，第一天线板21和第二天线板31可通过BTB(board to board，板对板连接器)接口进行连接，或者FPC(Flexible Printed Circuit board，柔性印刷电路板)接口进行连接，以实现第一天线板21和第二天线板31之间 的SPI(Serial Peripheral Interface，串行外设接口)、UART(Universal Asynchronous Receiver/Transmitter，通用异步收发传输器)通信，所述第一天线板21和第二天线板31采用主从模式，通过一个CAN或CAN FD接口对外进行检测信号输出。
可以理解，所述第一射频芯片23和第二射频芯片33包括微控单元，所述微控单元用于对障碍物反射的射频信号进行处理及计算，从而确定汽车与障碍物的位置、运动速度和方向等相关信息。
请参阅图5，在本申请实施例中，所述第一天线板21和第二天线板31对称设置，且所述第一天线板21和第二天线板31呈预设夹角(例如120°)设置，所述第一天线板21与第二天线板31之间的夹角可通过所述突起112的高度来调节。在所述第一毫米波201和第二毫米波301的发射区域的交叉部分，出现重合部分A以及错开部分B，重合部分A为所述第一毫米波201和第二毫米波301的共同的探测区域，错开部分B为所述第一毫米波101和第二毫米波201的探测盲区。
需要说明的是，在实际应用中，所述错开部分B的探测盲区较为靠近车身，且错开部分B的探测盲区位于第一毫米波201和第二毫米波301之间，面积较小，在汽车行驶的过程中，第一毫米波201和第二毫米波301便可对车身一侧进行180度视场角的探测，一般地，障碍物不会突然出现在错开部分B的探测盲区，当汽车于安装雷达100的一侧出现障碍物时，障碍物便由所述第一毫米波201和第二毫米波301探测出，因此，错开部分B的探测盲区为非必要探测区域。
其中，第一探测视角、第二探测视角和/或预设夹角越大，则错开部分B的探测盲区面积越小。需要说明的是，第一探测视角和第二探测视角的大小越大，在需要保证第一探测组件20和第二探测组件30的探测精度的前提下，则雷达100的开发难度越大。
请参阅图6，图6为传统雷达200的示意图，传统的雷达200由于其探测视场角的大小为150度，其小于180度，存在探测盲区，且缺少了安装冗余度。具体地，将传统雷达200安装于汽车的左右其中一侧时，雷达200的探测视场角与汽车之间出现探测盲区，存在一定的安全隐患，且雷达200的视场角的中 心轴需与汽车的中轴线垂直，否则雷达200的探测方位会出现偏差。因此，在雷达200安装于汽车的过程中，有较高的安装精度要求，且在安装完成后，还需要在较为苛刻校准环境进行校准，例如，较为空旷的自然环境、直行道路进行行驶动态校准等。
与传统的雷达200相比，本申请实施例提供的雷达100整体的探测视场角大于或等于180度，一方面，使得雷达100安装于汽车的一侧后，可对该侧进行视场角为180度的探测，消除了传统的雷达200的探测盲区，提高了汽车行驶的安全性；另一方面，雷达100的安装水平角度方向具有较大的冗余度，使得雷达100可在水平方向±x度(如图5所示)的冗余度范围内进行安装，在满足探测视场角的情况下，降低了安装精度要求，提高了安装速度。
其中，x值的大小取决于雷达100的探测视场角，例如，当雷达100的探测视场角为190度时，x值为5，当雷达100的探测视场角为200度时，x值为10。
在本申请实施例中，第一探测视角的值大于或等于90度，且小于或等于150度；第二探测视角的值大于或等于90度，且小于或等于150度；所述预设夹角的值大于90度，且小于或等于150度。通过上述设置，使得了雷达100可进行视场角大于180度的探测，且保证了雷达100的安装冗余度，可使得雷达100可在水平方向一定角度范围内进行安装，在满足探测视场角的情况下，降低了雷达100的安装精度要求，提高了安装速度。其中，由于车身的一侧实际需要探测的角度范围为180度，故，雷达100超出180度的部分直接投射于车身，在安装完成后，可通过算法进行静止环境校准。
进一步地，如图5所示，第一探测视角和第二探测视角的大小均为120度，预设夹角为120度。通过以上设置，保证了所示第一探测组件20和第二探测组件30的探测精度，在探测精度和开发难度中取得平衡点，减少错开部分B的探测盲区面积。其中，所述第一毫米波201和第二毫米波301出射的起始位置位于同一水平线上，第一探测视角和第二探测视角叠加后的探测视场角等于190度，其中，雷达100的有效探测视场角度为180度，超出180度部分为雷达100的安装冗余度，雷达100可在水平方向±5度的冗余度范围内进行安装。
请参阅图7，所述电源组件40包括基带板41和设置于所述基带板41上的电源芯片42，所述电源芯片42分别与所述第一射频芯片23及第二射频芯片33电性连接，所述电源芯片42用于为所述第一射频芯片23和第二射频芯片33供电，同时，所述电源芯片42也用于所述第一射频芯片23和第二射频芯片33之间的数据交换。
具体地，请参阅图8，所述第一天线22发射第一毫米波，接受由障碍物反射的第一毫米波，并通过所述第一射频芯片23的微控单元进行处理得到第一数据；所述第二天线32发射第二毫米波，接受由障碍物反射的第二毫米波，并通过所述第二射频芯片23的微控单元进行处理得到第二数据，所述电源芯片42通过所述第一数据及第二数据确定汽车与障碍物的相对距离、相对速度、角度及运动方向等。
所述电源组件40还包括连接座(如图7所示)，所述连接座包括第一连接座43和第二连接座44，所述第一连接座43和所述第二连接座44均为90度转角连接座，所述第一天线板21通过所述第一连接座43与所述基带板41电连接，所述第二天线板31通过所述第二连接座44与所述基带板41电连接，以实现第一天线板21和第二天线板31之间的SPI(Serial Peripheral Interface，串行外设接口)、UART(Universal Asynchronous Receiver/Transmitter，通用异步收发传输器)通信，第一天线板21和第二天线板31采用主从模式，通过一个CAN或CAN FD接口对外进行检测信号输出。
所述第一连接座43和第二连接座44均为90度转角连接座，这样使得所述第一天线板21和第二天线板31均与所述基带板41垂直连接，连接更牢固。
所述上盖12的形状与所述第一天线板21、第二天线板31及所述基带板41围合的形状相适配，以减小所述雷达100整体的体积，节约成本。
请参阅图9，所述雷达100还包括散热组件60，所述散热组件60收容于所述壳体10，所述散热组件60包括导热垫及散热件，所述散热件安装于所述壳体10。具体地，所述导热垫包括第一导热垫61及第二导热垫62，所述散热件包括第一散热件63及第二散热件64，所述第一导热垫61安装于所述第一射频芯片23与所述第一散热件63之间，所述第二导热垫62安装于所述第二射频芯片33与所述第二散热件64之间，所述第一散热件63及第二散热件64 均安装于所述底座11。所述第一导热垫61用于将所述第一射频芯片23产生的热量传导至所述第一散热件63，再经由所述底座11散发；所述第二导热垫62用于将所述第二射频芯片33产生的热量传导至所述第二散热件64，再经由所述底座11散发。
可以理解，所述导热垫及散热件还可以用于所述壳体10内其他零部件的导热及散热，从而保护所述壳体10内的电子元器件，增强所述雷达100得使用稳定性，提高雷达的使用寿命。
请结合图10，所述雷达100包括密封环70，所述底座本体11上设置有密封槽111，所述密封环70设置于所述密封槽111，在所述上盖12盖设于所述底座11上时，所述上盖12的内壁与所述密封环70抵接，以通过所述密封环70密封所述上盖12与所述底座11的连接处，防止灰尘及水蒸气等渗入所述壳体10内，损坏所述壳体10内的零部件。
所述密封环70可为橡胶材质。
所述雷达100还包括密封圈80(如图9所示)，所述密封圈80内嵌于所述连接口13，在所述接插件50插入所述连接口13时，所述接插件50与所述密封圈80抵接，以通过所述密封圈80密封所述接插件50与所述连接口13的连接处，防止灰尘及水蒸气等渗入所述连接口13内，损坏所述接插件50。
本申请实施例还提供一种预警系统，所述预警系统包括声预警器和/或显示屏预警器，以及如上所述的雷达100，所述雷达100与所述声预警器、光预警器、振动预警器和/或显示屏预警器电性连接，所述雷达100用于对待测目标进行障碍物有无、测距、测速和/或方位测量；所述声预警器用于雷达100检测到障碍目标和车身之间的距离小于预设值时发出警报声；所述显示屏预警器用于所述雷达100检测到障碍目标和车身之间的距离小于预设值时显示警告界面。
在一些实施例中，所述预警系统还包括光预警器或振动预警器，所述光预警器用于所述雷达100检测到障碍目标和车身之间的距离小于预设值时发出闪烁的警告灯；所述振动预警器用于所述雷达100检测到障碍目标和车身之间的距离小于预设值时产生振动。其中，为保证驾驶员可快速察觉到障碍目标的出现，所述振动预警器安装于汽车的方向盘。其余结构(声预警器及显示屏预 警器)请参考现有技术，本文不再赘述。
本申请提供的一种雷达以及预警系统包括壳体10、第一探测组件20、第二探测组件30和接插件50，壳体10上设置有连接口13，接插件可拆卸地安装于连接口13；第一探测组件20包括第一天线板21和安装于第一天线板21上的第一天线22，第一天线22用于发射第一毫米波201，第一毫米波201具有第一探测视角；第二探测组件30包括第二天线板31和安装于第二天线板31上的第二天线32，第二天线32用于发射第二毫米波301，第二毫米波301具有第二探测视角；第一毫米波和第二毫米波的发射区域有交叉部分，且第一探测视角和第二探测视角叠加后的探测视场角大于或等于180度，使得雷达可进行视场角为180度的探测，提高了汽车行驶的安全性，同时接插件与壳体间的连接为可拆卸连接，便于接插件50的拆装及维修，从而可节约雷达100的维修成本，避免接插件损坏时更换整个雷达100。
以上所述仅为本申请的实施方式，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (13)

  1. 一种雷达，其特征在于，包括：
    壳体，所述壳体上设置有连接口；
    电源组件，收容于所述壳体内；
    第一探测组件，收容于所述壳体内，且电性连接于所述电源组件，所述第一探测组件包括第一天线板和安装于所述第一天线板上的第一天线，所述第一天线用于发射第一毫米波，所述第一毫米波具有第一探测视角；
    第二探测组件，收容于所述壳体内，且电性连接于所述电源组件，所述第二探测组件包括第二天线板和安装于所述第二天线板上的第二天线，所述第二天线板与所述第一天线板呈预设角度设置，所述第二天线用于发射第二毫米波，所述第二毫米波具有第二探测视角；
    接插件，所述接插件可拆卸地安装于所述连接口并与所述电源组件电性连接；
    其中，所述第一毫米波和第二毫米波的发射区域有交叉部分，且所述第一探测视角和第二探测视角叠加后的探测视场角大于或等于180度。
  2. 根据权利要求1所述的雷达，其特征在于，
    所述接插件与所述连接口连接的一端设置有弹性卡扣，所述弹性卡扣卡接与所述连接口。
  3. 根据权利要求2所述的雷达，其特征在于，
    所述第一探测组件还包括第一射频芯片，所述第一射频芯片设置于所述第一天线板，所述第一射频芯片与所述第一天线电性连接；
    所述第二探测组件还包括第二射频芯片，所述第二射频芯片设置于所述第二天线板，所述第二射频芯片与所述第二天线电性连接；
    所述第一射频芯片和第二射频芯片电性连接。
  4. 根据权利要求3所述的雷达，其特征在于，
    所述电源组件包括基带板和设置于所述基带板上的电源芯片，所述第一天 线板及所述第二天线板均电性连接于所述基带板，所述电源芯片分别与所述第一射频芯片及第二射频芯片电性连接。
  5. 根据权利要求4所述的雷达，其特征在于，
    所述电源组件还包括第一连接座和第二连接座，所述第一连接座和所述第二连接座均为90度转角连接座，所述第一天线板通过所述第一连接座与所述电源板电性连接，所述第二天线板通过所述第二连接座与所述电源板电性连接。
  6. 根据权利要求1至5任一项所述的雷达，其特征在于，
    所述壳体包括底座及上盖，所述上盖设于所述底座，所述第一探测组件、第二探测组件及电源组件均收容于所述上盖及所述底座围合形成的腔体内；
    所述连接口设置于所述底座；所述上盖采用可穿透毫米波的材料制成；
    所述底座采用铝合金材质制成。
  7. 根据权利要求6所述的雷达，其特征在于，
    所述底座包括底座本体及自所述底座本体中部向所述上盖延伸的突起，所述第一天线板安装于所述突起的第一端与所述底座本体的第一端之间，所述第二天线板安装于所述突起的第二端与所述底座本体的第二端之间。
  8. 根据权利要求6所述的雷达，其特征在于，
    所述上盖的形状与所述第一探测组件、第二探测组件及电源组件围合的形状相适配。
  9. 根据权利要求6所述的雷达，其特征在于，
    所述雷达包括散热组件，所述散热组件收容于所述壳体，所述散热组件包括第一导热垫、第二导热垫、第一散热件及第二散热件，所述第一导热垫安装于所述第一射频芯片与所述第一散热件之间，所述第二导热垫安装于所述第二射频芯片与所述第二散热件之间，所述第一散热件及第二散热件均安装于所述底座。
  10. 根据权利要求6所述的雷达，其特征在于，
    所述雷达还包括密封环，所述底座上设置有密封槽，所述密封环设置于所述密封槽，在所述上盖盖设于所述底座上时，所述上盖的内壁与所述密封环抵接。
  11. 根据权利要求1至5任一项所述的雷达，其特征在于，
    所述连接口内嵌有密封圈，在所述接插件插入所述连接口时，所述接插件与所述密封圈抵接。
  12. 根据权利要求1至5任一项所述的雷达，其特征在于，
    所述第一探测视角的值大于或等于90度，且小于或等于150度；
    所述第二探测视角的值大于或等于90度，且小于或等于150度；
    所述预设角度大于或等于90度，且小于或等于150度。
  13. 一种预警系统，其特征在于，
    包括权利要求1-12任一项所述的雷达；以及，
    声预警器和/或显示屏预警器，所述雷达与所述声预警器和/或显示屏预警器电性连接。
PCT/CN2022/078646 2021-03-04 2022-03-01 一种雷达及预警系统 WO2022184060A1 (zh)

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