CN111830467A

CN111830467A - Radar mounting structure

Info

Publication number: CN111830467A
Application number: CN201910287942.5A
Authority: CN
Inventors: 黄苗侠; 郑志强; 王秀青
Original assignee: Suzhou Milimeter Wave Technology Co ltd
Current assignee: Suzhou Milimeter Wave Technology Co ltd
Priority date: 2019-04-11
Filing date: 2019-04-11
Publication date: 2020-10-27

Abstract

The invention discloses a radar mounting structure, which comprises a radar main body, an upper radar cover and a lower radar cover, wherein the radar main body comprises a first circuit board and a second circuit board which are vertically arranged, the first circuit board comprises a radar antenna, the second circuit board comprises a power circuit, an MCU (microprogrammed control unit) and an algorithm circuit, one end of the first circuit board, which is far away from the second circuit board, is a transmitting end of the radar antenna, one end of the second circuit board, which is far away from the first circuit board, is a connector joint end and is arranged in parallel to the lower radar cover and the upper radar cover, the mounting structure comprises a mounting bottom plate, a mounting bracket and a waterproof cover, and the mounting bracket and the waterproof cover are arranged on a. The radar mounting structure is easy to mount the radar on the side car body of the large and medium-sized passenger and freight cars, the radar is a non-central radar, the mounting safety requirement of the car body can be met, the problem that the dead zone of the large and medium-sized passenger and freight cars cannot be detected can be effectively solved, and the occurrence rate of traffic accidents is reduced.

Description

Radar mounting structure

Technical Field

The invention relates to the technical field of sensors, in particular to a radar mounting structure.

Background

From time to time we see news about traffic accidents, and most of these accidents are related to large trucks, so that large trucks become "road killers" in many people's eyes. Most accidents of large trucks are related to 'blind areas', because the bodies of medium and large trucks are generally longer (> 6 m), the current domestic buses and buses are 12 m larger, the trucks are classified into various types according to application ranges and functions, and the longest vehicle is 17 m. Because the length of the body of the medium and large-sized passenger and freight vehicles is longer, when a driver turns or changes lanes when driving the vehicles, a blind area exists on the side surface of the body, the driver can hardly see the situation of coming vehicles of the blind area on the side surface indoors, accurate judgment can not be made, and traffic accidents are easy to happen.

In view of this phenomenon, there are several main preventive measures in the market: video blind area monitoring, ultrasonic blind area monitoring and the like. The video blind area monitoring is realized by installing cameras at the positions of the left side rearview mirror and the right side rearview mirror of the vehicle to acquire video data. However, the installation mode of the monitoring system is not beautiful, and when the vehicle runs in rainy and snowy days or at night, the monitoring system is influenced by weather conditions, the monitoring quality is reduced, and drivers cannot clearly see blind area scenes in the cab, so that the probability of traffic accidents is greatly improved. The ultrasonic blind area monitoring is that the ultrasonic sensors are arranged on the left side and the right side of the tail part of a vehicle, the display screens are arranged on the rearview mirrors on the left side and the right side of the vehicle to display the blind area scene, the monitoring system is arranged to be incapable of completely covering the blind area, the installation mode is only suitable for small automobiles and is arranged on medium-large passenger and freight vehicles, and the potential safety hazard still exists when a driver drives the vehicle.

The radar sensor is arranged on the automobile, so that the functions of collision prevention, automatic parking, pedestrian detection and the like of the automobile are realized, the automobile gradually walks out of the automobile auxiliary intelligent driving system, and the automobile auxiliary intelligent driving system represents a trend of realizing unmanned driving in the future. However, the currently mainstream automotive radar, 24GHz radar, is limited by frequency band control, radio astronomy 5Km does not allow the use of the band radar, and the volume of the automotive radar itself is large (mainly the antenna volume), and the like, and the automotive radars of 77GHz and 79GHz, which are gradually commercialized and equipped with some high-end automobiles, have wider distribution frequency band, higher distance resolution, relatively smaller volume, and strong target detection capability, and can be sensor devices capable of rapidly sensing information such as the distance, speed, azimuth angle and the like of peripheral environmental objects in the range of 0-200 meters in all weather scenes, so in the field of automotive automatic driving safety, automotive millimeter wave radar sensors have become one of the core components, wherein 7GHz and 79GHz millimeter wave radars are essential key components on intelligent automobiles. However, the volume of the radar does not allow the installation of components exceeding 32mm on the side bodies of medium and large passenger trucks, particularly large passenger trucks, so that the application of the 7GHz and 79GHz automobile radar on the medium and large passenger trucks is limited to a great extent.

Disclosure of Invention

The invention aims to provide a radar mounting structure which can effectively solve the problem that a dead zone of a medium-sized or large-sized passenger-truck cannot be detected and reduce the occurrence rate of traffic accidents.

The invention has the technical scheme that the radar mounting structure comprises a radar main body, and an upper radar cover and a lower radar cover which are used for placing the radar main body, wherein the radar main body comprises a first circuit board and a second circuit board, the first circuit board comprises a radar antenna, the second circuit board comprises a power supply circuit, an MCU and an algorithm circuit, the first circuit board and the second circuit board are vertically arranged in the upper radar cover and the lower radar cover, one end of the first circuit board, which is far away from the second circuit board, is a transmitting end of the radar antenna, one end of the second circuit board, which is far away from the first circuit board, is a connector joint end and is arranged in parallel to the lower radar cover and the upper radar cover, the mounting structure comprises a mounting bottom plate, a mounting bracket and a waterproof cover, the mounting bracket and the waterproof cover are arranged on the first side of the mounting bottom plate, the waterproof cover with the installing support is fixed in through first mounting on the mounting plate, first mounting including set up in the first fixed part in the four corners of waterproof cover with set up in the second fixed part of mounting plate second side, the second fixed part is worn to locate mounting plate will the installing support is located on the mounting plate, the radar pass through the second mounting with mounting support fixed connection, the waterproof cover passes through first fixed part with second fixed part fixed connection.

Further, the first fixing piece and the second fixing piece are both screws and nuts. Of course, a snap structure is also possible.

Further, the first fixing portion is an embedded screw, and the second fixing portion is a nut.

Further, a recessed portion is formed in the periphery of the waterproof cover, and an integrated waterproof sealing structure is arranged in the recessed portion.

Further, the second mounting including set up in be used for fixing on the installing support the screw post of radar, the radar passes through the fixed orifices cover that sets up under the radar is located the screw post is through nut fixed connection.

Further, mounting plate is the metal material, the screw post with mounting plate forms a body structure, the both ends of radar lower cover all are provided with the fixed orifices.

Furthermore, the waterproof cover is made of PC plastic, and the vehicle is a medium-sized truck or a large-sized passenger car.

Further, the radar is a 79Ghz millimeter wave radar.

Further, the mounting bottom plate is a side vehicle body of the vehicle, and the distance from the outermost side of the part of the mounting structure exposed out of the side vehicle body to the side vehicle body is less than 32 mm.

Has the advantages that: the radar mounting structure is easy to mount the radar on the side car body of the large and medium-sized passenger and freight cars, the radar is a non-central radar, the mounting safety requirement of the car body can be met, the problem that the dead zone of the large and medium-sized passenger and freight cars cannot be detected can be effectively solved, and the occurrence rate of traffic accidents is reduced.

Drawings

Fig. 1 is an exploded view of a radar structure according to the present invention.

Fig. 2 is an installation diagram of the radar structure of the present invention.

Reference numerals: 10. the radar, 101, radar upper cover, 1011, the bar hole, 1012, first lid portion, 1013, the second lid portion, 102, radar lower cover, 1021, the buckle, 1022, thermal-insulated boss, 1023, the bleeder vent, 1024, the water proof membrane, 1025, integral type seal structure, 1026, first fixed arm, 1027, the second fixed arm, 103, the radar main part, 1031, first circuit board, 1032, the second circuit board, 1033, the transmitting terminal of radar antenna, 1034, connector joint end, 20, mounting panel, 30, the installing support, 40, the buckler, 50, first mounting, 60, the second mounting.

Detailed Description

The radar structure of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, according to the technical solution of the present invention, a mounting structure for a radar 10 includes a radar main body 103, and an upper radar cover 101 and a lower radar cover 102 for placing the radar main body 103, where the radar main body 103 includes a first circuit board 1031 and a second circuit board 1032, the first circuit board 1031 includes an antenna of the radar 10, the second circuit board 1032 includes a power circuit, an MCU and an algorithm circuit, the first circuit board 1031 and the second circuit board 1032 are vertically arranged in the upper radar cover 101 and the lower radar cover 102, an end of the first circuit board 1031 away from the second circuit board 1032 is a transmitting end of the antenna of the radar 10, an end of the second circuit board 1032 away from the first circuit board 1031 is a connector end 1034 and is arranged parallel to the lower radar cover 102 and the upper radar cover 101, and the mounting structure includes a mounting base plate 20, a mounting base plate, a mounting plate, Installing support 30 and buckler 40, installing support 30 with buckler 40 set up in mounting plate 20's first side, buckler 40 with installing support 30 is fixed in through first mounting 50 on mounting plate 20, first mounting 50 including set up in the first fixed part in buckler 40's four corners with set up in the second fixed part of mounting plate 20 second side, the second fixed part is worn to locate mounting plate 20 will mounting support 30 is located on mounting plate 20, radar 10 through second mounting 50 with mounting support 30 fixed connection, buckler 40 passes through first fixed part with second fixed part fixed connection.

Further, the first fixing member 50 and the second fixing member 50 are both a screw and a nut. Of course, a snap structure is also possible. Of course, a snap structure is also possible.

Further, a recessed portion is formed in one circle of the waterproof cover 40, and an integrated waterproof sealing structure is arranged in the recessed portion. The upper and lower radar covers 101, 102 may also be provided with similar grooves in which an integral sealing structure 1025 may also be provided. Integral type seal structure 1025 can the waterproof sealing washer of formula as an organic whole, also can glue with special use and carry out the integral type and beat to glue sealed formation.

Further, the second fixing member 50 includes a screw post disposed on the mounting bracket 30 for fixing the radar 10, and the radar 10 is sleeved on the screw post through a fixing hole disposed on the radar lower cover 102, and is fixedly connected with the screw post through a nut.

Further, the mounting base plate 20 is made of metal, the screw posts and the mounting base plate 20 form an integrated structure, and fixing holes are formed in two ends of the radar lower cover 102.

Further, the waterproof cover 40 is made of PC plastic, and the vehicle is a medium-sized truck or a large-sized passenger car.

Further, the radar 10 is a 79Ghz millimeter wave radar 10.

Further, the mounting base plate 20 is a side vehicle body of the vehicle, and the distance from the outermost side of the part of the mounting structure exposed out of the side vehicle body to the side vehicle body is less than 32 mm.

Specifically, the mounting bottom plate is fixed on the outer side of the side car body from the inner side of the side car body through four nuts, the radar is fixed on the mounting bracket through 3 screw bolts and screws, and the waterproof cover is fixed on the outer side of the radar through four screws and the original four nuts in a matched mode. The waterproof cover can comprise a part which is preset between the mounting bracket and the mounting bottom plate to form a complete waterproof cover, and preferably, the middle of the waterproof cover is high, the periphery of the waterproof cover is low, and the edge of the opening is designed smoothly, so that the waterproof cover is better waterproof.

In the radar, a heat insulation boss 1023 for supporting the first circuit board 1031 and/or the second circuit board 1032 may be arranged in the radar lower cover 102. The radar upper cover 102 is circumferentially provided with a groove, and an integrated sealing structure 1025 is arranged in the groove. The radar upper cover 101 is buckled on the outer side of the radar lower cover 102, and a plurality of strip-shaped holes 1011 and buckles 1021 which are buckled with each other are correspondingly arranged on the side surfaces of the radar upper cover 101 and the radar lower cover 102. The upper radar cover 101 includes a first cover portion 1012 pressing the integrated sealing structure 1025, and a second cover portion 1013 disposed inside the first cover portion 1012 and higher than the first cover portion 1012, wherein the second cover portion 1013 is used for accommodating the circuit board, and the circuit board is fixedly connected to the upper radar cover 101 or the lower radar cover 102. The radar antenna orientation the radar upper cover 101, the radar lower cover 102 corresponds the position department of radar antenna is provided with bleeder vent 1023, be provided with water proof membrane 1024 on the bleeder vent 1023. Be provided with on the radar lower cover 102 and be used for fixing first circuit board 1031 with the fixed knot of second circuit board 1032 constructs, fixed knot constructs including be used for set up in first draw-in groove on the lateral wall of radar lower cover 102 with set up in second draw-in groove on the diapire of radar lower cover 102, first draw-in groove is used for fixing first circuit board 1031, the second draw-in groove is used for fixing second circuit board 1032, radar antenna is higher than the second draw-in groove sets up. Of course, a fixing structure for fixing the first circuit board 1031 and the second circuit board 1032 may be disposed on the radar upper cover 101 and/or the radar lower cover 102, only the first circuit board 1031 and/or the second circuit board 1032 may be fixed, and the first circuit board 1031 and the second circuit board 1032 are fixedly connected. Further, two first fixing arms 1026 are symmetrically arranged at a certain distance from the first end of the lower radar cover 102, and first fixing holes are formed in the first fixing arms 1026. Further, a second end of the radar lower cover 102 is provided with a second fixing arm 1027, and an end of the second fixing arm 1027 is provided with a second fixing hole. The radar and the mounting bracket 30 are fixedly connected through a first fixing hole and a second fixing hole, a screw post and a nut.

Has the advantages that: the radar structure is easy to install on the side car body of the large and medium-sized passenger and freight cars, the radar is a non-central radar, the installation safety requirement of the car body can be met, the problem that the dead zone of the large and medium-sized passenger and freight cars cannot be detected can be effectively solved, and the occurrence rate of traffic accidents is reduced.

The radar is emitted by a non-central antenna, only the emitting end 1033 of the radar antenna is arranged vertical to the side vehicle body, the problem of height limitation of the structural members arranged on the side vehicle body of large and medium-sized passenger and medium-sized trucks in particular is effectively solved, and the installation size of the radar can meet the installation safety requirements of the large and medium-sized passenger and medium-sized trucks in particular. The installation limitation of the millimeter wave radar on the side body of large and medium-sized vehicles, particularly large-sized passenger and freight vehicles is effectively solved. The millimeter wave radar transmits millimeter waves outwards through an antenna, receives target reflection signals, quickly and accurately acquires physical environment information (such as relative distance, relative speed, angle, movement direction and the like between an automobile and other objects) around an automobile body after post-processing, then performs target tracking and identification classification according to the detected object information, further performs data fusion by combining automobile body dynamic information, and finally performs intelligent processing through a central processing unit (MCU). After a reasonable decision is made, the driver is informed or warned in various modes such as sound, light, touch and the like, or the automobile is actively intervened in time, so that the safety and the comfort of the driving process are ensured, and the accident occurrence probability is reduced. Preferably, the millimeter wave automobile radar with the frequency of the wireless electromagnetic wave of 79Ghz is used for blind area monitoring. The millimeter wave radar effectively utilizes various characteristics (strong fog, smoke and dust penetrating capability, all-weather and normal operation all day long, and by adopting a multiple waterproof structure, the millimeter wave radar has longer service life, low price, reduced cost, capability of distinguishing and identifying very small targets and simultaneously identifying a plurality of targets, thereby having very strong space distinguishing and imaging capabilities, high system sensitivity, low error false alarm rate, difficult interference of external electromagnetic noise, higher transmitting frequency, lower transmitting power, capability of simultaneously measuring the distance and the speed of the plurality of targets, capability of continuously tracking the targets, even keeping tracking and not losing the static targets, and high distance real-time performance) so that the millimeter wave radar can better serve medium and large scales, especially, the monitoring of the blind area that looks sideways of large-scale passenger freight train promotes monitoring effect.

Claims

1. A radar mounting structure is characterized by comprising a radar main body, and an upper radar cover and a lower radar cover which are used for placing the radar main body, wherein the radar main body comprises a first circuit board and a second circuit board, the first circuit board comprises a radar antenna, the second circuit board comprises a power circuit, an MCU and an algorithm circuit, the first circuit board and the second circuit board are mutually and vertically arranged in the upper radar cover and the lower radar cover, one end of the first circuit board, which is far away from the second circuit board, is a transmitting end of the radar antenna, one end of the second circuit board, which is far away from the first circuit board, is a connector joint end and is arranged in parallel with the lower radar cover and the upper radar cover, the mounting structure comprises a mounting base plate, a mounting bracket and a waterproof cover, the mounting bracket and the waterproof cover are arranged on a first side of the mounting base plate, the waterproof cover with the installing support is fixed in through first mounting on the mounting plate, first mounting including set up in the first fixed part in the four corners of waterproof cover with set up in the second fixed part of mounting plate second side, the second fixed part is worn to locate mounting plate will the installing support is located on the mounting plate, the radar pass through the second mounting with mounting support fixed connection, the waterproof cover passes through first fixed part with second fixed part fixed connection.

2. The radar mounting structure of claim 1, wherein the first and second fixtures are each a screw and a nut.

3. The radar mounting structure of claim 1, wherein the first fixing portion is a buried screw, and the second fixing portion is a nut.

4. The radar mounting structure of claim 1, wherein a recess is provided around the waterproof cover, and an integral waterproof and sealing structure is provided in the recess.

5. The radar mounting structure of claim 1, wherein the second fixing member includes a screw post disposed on the mounting bracket for fixing the radar, and the radar is sleeved on the screw post through a fixing hole disposed on the lower cover of the radar and is fixedly connected to the screw post through a nut.

6. The radar mounting structure of claim 5, wherein the mounting base plate is made of metal, the screw posts and the mounting base plate form an integral structure, and fixing holes are formed at both ends of the lower radar cover.

7. The radar mounting structure of claim 1, wherein the waterproof cover is made of PC plastic, and the vehicle is a medium-large truck or a passenger car.

8. The radar mounting structure according to claim 1, wherein the radar is a 79Ghz millimeter wave radar.

9. The radar mounting structure of any one of claims 1 to 8 wherein the mounting floor is a side body of the vehicle and the distance from the outermost side of the portion of the mounting structure exposed to the side body is less than 32 mm.