Laser millimeter wave radar integrated vehicle-mounted intelligent brake triggering device

Abstract

The utility model relates to vehicle radar technical field, and disclose a kind of laser millimeter wave radar integration vehicle intelligent brake trigger device, including trigger device ontology and inlaying two radar bodies in trigger device ontology one end, the outer wall of trigger device ontology is close to the one end of radar body and is connected with two scraping poles, two scraping poles are respectively with two radar bodies matching arrangement, the end of two scraping poles is connected with rotating assembly, two rotating assemblies are connected with linkage assembly, one rotating assembly is connected with reciprocating motor in the end away from scraping pole, and reciprocating motor is inlaid in trigger device ontology interior.This kind of laser millimeter wave radar integration vehicle intelligent brake trigger device, reciprocating motor drives two rotating assemblies by linkage assembly, synchronously drives two scraping poles to reciprocate scraping in two radar outside, effectively removes water stain, dirt and other dirt attached on the surface of radar, ensure that radar outside is clean and unobstructed, to improve its detection and trigger sensitivity.

Description

Technical Field

[0001] This utility model relates to the field of vehicle radar technology, specifically to an integrated laser millimeter-wave radar vehicle intelligent braking triggering device. Background Technology

[0002] With the development of autonomous driving technology, LiDAR and millimeter-wave radar, as core sensors, are widely used in scenarios such as vehicle obstacle detection, adaptive cruise control, and emergency braking. LiDAR generates high-precision 3D point clouds by emitting laser beams and receiving reflected signals, giving it advantages in target contour recognition and static object detection. Millimeter-wave radar utilizes millimeter-wave electromagnetic waves, possessing strong penetrating power and capable of stable operation in low-visibility conditions such as rain, snow, and fog, directly measuring the distance, speed, and angle of obstacles.

[0003] Both types of radar face a common challenge in their installation on vehicles: to obtain the best detection angle, they are usually placed near the front and rear bumpers. However, this location is close to the ground, and when driving in rainy, snowy, or muddy roads, the radar sensing surface is easily covered by splashed sewage, slush, or dust.

[0004] For lidar, rain and snow can directly obstruct the transmission and reception of light signals, leading to a significant decrease in point cloud quality. While millimeter-wave radar has strong penetrating power through rain and snow, dense contaminants (such as dried mud) on the sensing surface can still cause signal attenuation. Furthermore, residual dust after moisture evaporation can firmly adhere to the sensing surface, further reducing radar sensitivity and potentially causing false alarms or braking delays.

[0005] This issue is particularly critical in intelligent and autonomous vehicles—these vehicles rely heavily on radar to detect obstacles in their path in real time and to trigger automatic braking systems when necessary to ensure driving safety. Therefore, the decreased detection performance caused by sensor surface contamination can directly affect the vehicle's safety response capabilities, leading to serious safety hazards.

[0006] The patent with publication number CN217689395U discloses a universal triggering device for laser radar, including a laser radar triggering device body. One end of the laser radar triggering device body has a laser perforation slot. A rotating plate is fixedly connected to one end of the laser radar triggering device body. A rotating rod is rotatably connected inside the rotating plate. An auxiliary plate is fixedly connected to the outer end of the rotating rod. A connecting plate is fixedly connected to one end of the auxiliary plate. A laser perforation protection plate is fixedly connected to one end of the connecting plate. Through the mutual cooperation of the laser radar triggering device body, the laser perforation slot, the rotating plate, the rotating rod, the auxiliary plate, the connecting plate, the laser perforation protection plate, the laser perforation insert, the fixed suction cup, the deformation rod, the protective pad, the magnetic block, and the magnetic pad, the laser perforation protection plate can stabilize its current state, thereby continuously fixing the laser radar triggering device body.

[0007] However, the radar triggering device in the aforementioned technology still has the following problems: the radar needs to be continuously turned on while the vehicle is in motion, and the protective device cannot obstruct it during this period, otherwise it will interfere with the radar's normal detection and triggering of obstacles. Furthermore, because complete enclosure and protection are not possible, debris splashed during driving (such as mud, water, dust, etc.) can easily adhere to the radar sensing surface, thereby reducing its detection sensitivity, affecting the timely response of the braking or obstacle avoidance system, and posing a potential threat to driving safety. Utility Model Content

[0008] To address the shortcomings of existing technologies, this invention provides an integrated laser millimeter-wave radar vehicle-mounted intelligent brake triggering device, which improves the sensitivity of vehicle-mounted radar detection.

[0009] To achieve the above objectives, this utility model provides the following technical solution: an integrated laser millimeter-wave radar vehicle-mounted intelligent brake triggering device, comprising a triggering device body and two radar bodies embedded at one end of the triggering device body. Two scraper rods are connected to the outer wall of the triggering device body near the radar bodies. The two scraper rods are respectively matched with the two radar bodies. A rotating component is connected to the end of each scraper rod. A linkage component is connected between the two rotating components. A reciprocating motor is connected to the end of one of the rotating components away from the scraper rod. The reciprocating motor is embedded inside the triggering device body.

[0010] Furthermore, the rotating assembly includes a rotating shaft and a connecting plate. A rotating hole is provided on the side of the trigger device body near the radar body. The rotating shaft is rotatably connected to the rotating hole. The end of the rotating hole away from the trigger device body is connected to the connecting plate. One end of the scraper is fixedly connected to the connecting plate. One of the rotating shafts of the two rotating assemblies is fixedly connected to the output shaft of the reciprocating motor. The linkage assembly is connected to the two rotating shafts.

[0011] Furthermore, the linkage assembly includes a timing belt and two gears. A linkage cavity is formed between the two rotating holes. The two gears are located at both ends inside the linkage cavity and are fixedly connected to the outer walls of the two rotating shafts. The timing belt is located inside the linkage cavity, and two gears are respectively fitted at both ends of the timing belt and mesh with the two gears for transmission.

[0012] Furthermore, the rotating aperture is located directly below the radar body.

[0013] Furthermore, a mounting bolt is connected to the side of the connecting plate away from the rotating shaft, and the threaded rod of the mounting bolt passes through the connecting plate and connects to the rotating shaft.

[0014] Furthermore, a mounting block is fixedly connected to one end of the rotating shaft near the connecting plate. A mounting hole is provided on the side of the connecting plate near the rotating shaft. The mounting block is slidably connected to the mounting hole, and the mounting block and the mounting hole are non-circular structures that match each other. The threaded rod of the mounting bolt passes through the connecting plate and is threadedly connected to the mounting block.

[0015] Furthermore, a groove is provided on the side of the connecting plate away from the rotating shaft, and the nut of the mounting bolt is located in the groove.

[0016] Furthermore, a scraping blade is connected to the side of the scraper close to the radar body, and the scraping blade is slidably connected to the inner and outer surfaces of the radar body.

[0017] Furthermore, a trapezoidal groove is provided on the side of the scraper bar near the scraper blade, and a trapezoidal strip is fixedly connected to the side wall of the scraper blade, with the trapezoidal strip slidably connected to the trapezoidal groove.

[0018] Furthermore, the scraper blade has several scraping grooves on the side away from the scraper bar, and a raised scraping strip is provided in the middle of the several scraping grooves.

[0019] Compared with the prior art, the present invention has the following beneficial effects: This integrated laser millimeter-wave radar vehicle-mounted intelligent brake triggering device uses a reciprocating motor to drive two rotating components through a linkage assembly. These components simultaneously drive two scrapers to reciprocate and scrape the outer surfaces of the two radars, effectively removing water stains, dust, and other contaminants from the radar surfaces. This ensures that the outer surfaces of the radars are clean and unobstructed, thereby improving their detection and triggering sensitivity. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall appearance and connection structure of this utility model; Figure 2 This is a schematic diagram of the bottom cross-sectional structure of the triggering device body of this utility model; Figure 3 For based on Figure 2 Exploded view of the connection structure; Figure 4This is a schematic diagram of the connection structure between the two scraper rods of this utility model; Figure 5 This is a schematic diagram of the connection structure between the scraper and the rotating assembly of this utility model; Figure 6 This is a schematic diagram of the connection structure between the scraper rod and the scraper blade of this utility model.

[0021] In the diagram: 1. Triggering device body; 2. Radar body; 3. Scraper bar; 4. Rotating assembly; 5. Linkage assembly; 6. Reciprocating motor; 7. Scraper blade; 41. Rotating shaft; 42. Connecting disc; 43. Mounting bolt; 44. Mounting block; 51. Synchronous belt; 52. Gear; 71. Trapezoidal strip; 72. Raised scraper strip; 101. Rotating hole; 102. Linkage cavity; 301. Trapezoidal groove; 401. Mounting hole; 402. Groove; 701. Scraper groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1 to 6 A laser millimeter-wave radar integrated vehicle-mounted intelligent brake triggering device includes a triggering device body 1 and two radar bodies 2 embedded at one end of the triggering device body 1. Two scraper rods 3 are connected to the outer wall of the triggering device body 1 near the radar body 2. The two scraper rods 3 are respectively matched with the two radar bodies 2. The ends of the two scraper rods 3 are connected to rotating components 4. A linkage component 5 is connected between the two rotating components 4. A reciprocating motor 6 is connected to the end of one of the rotating components 4 away from the scraper rod 3. The reciprocating motor 6 is embedded inside the triggering device body 1.

[0024] like Figures 1 to 6 As shown, the integrated laser millimeter-wave radar vehicle-mounted intelligent brake triggering device of this utility model is structurally similar to existing radar triggering devices, such as the universal laser radar triggering device disclosed in patent publication number CN217689395U. The main improvement of this utility model lies in improving the sensitivity of radar detection and triggering, such as... Figures 1 to 6As shown, in use, the integrated laser and millimeter-wave radar vehicle-mounted intelligent brake triggering device of this utility model has two radar bodies 2 embedded in the triggering device body 1, which can be composed of laser radar and millimeter-wave radar. When the signal reception quality of the radar body 2 deteriorates, the reciprocating motor 6 can be controlled by the radar control system to reciprocate. Then, through the two rotating components 4 and the linkage component 5, the two scraper rods 3 are driven to reciprocate and scrape the outside of the radar body 2, thereby cleaning water stains, dust and other impurities from the outside of the radar body 2, thus ensuring that the outside of the radar body 2 is clean and unobstructed. To improve its detection and triggering sensitivity, it is important to note that when the radar control system starts the reciprocating motor 6 for a single scraping operation, the number of reciprocating movements of the reciprocating motor 6 does not need to be continuous. One or several reciprocating movements are sufficient to avoid the continuous scraping of the scraper 3 affecting the detection of the radar body 2. After a single scraping operation is completed, the radar body 2's detection signal reception quality is used to determine whether another scraping operation is needed. At the same time, after each scraper 3 stops moving, it needs to be reset to the side of the radar body 2's detection range to avoid interfering with the radar body 2's detection.

[0025] like Figures 1 to 6 As shown, the rotating assembly 4 includes a rotating shaft 41 and a connecting plate 42. A rotating hole 101 is provided on the side of the trigger device body 1 near the radar body 2. The rotating shaft 41 is rotatably connected to the rotating hole 101. The end of the rotating hole 101 away from the trigger device body 1 is connected to the connecting plate 42. One end of the scraper 3 is fixedly connected to the connecting plate 42. One of the rotating shafts 41 of the two rotating assemblies 4 is fixedly connected to the output shaft of the reciprocating motor 6. The linkage assembly 5 is connected to both rotating shafts 41. When the reciprocating motor 6 drives the rotating shaft 41 of one rotating assembly 4 to rotate, the linkage assembly 5 simultaneously drives the rotating shaft 41 of the other rotating assembly 4 to rotate. Then, the corresponding connecting plate 42 simultaneously drives the two scrapers 3 to perform a scraping operation on the outside of the radar body 2, thus cleaning the outside of both radar bodies 2.

[0026] like Figures 1 to 6 As shown, the linkage assembly 5 includes a timing belt 51 and two gears 52. A linkage cavity 102 is provided between the two rotating holes 101. The two gears 52 are located at both ends inside the linkage cavity 102, and the two gears 52 are fixedly connected to the outer walls of the two rotating shafts 41. The timing belt 51 is located inside the linkage cavity 102, and the two ends of the timing belt 51 are respectively fitted with two gears 52 and mesh with the two gears 52 for transmission.

[0027] like Figures 1 to 6As shown, the rotating hole 101 is located directly below the radar body 2. The timing belt 51 connects two gears 52, allowing the two rotating shafts 41 to rotate synchronously. The gears 52 are located in the middle of the rotating shafts 41 and can also limit the rotation of the rotating shafts 41 within the rotating hole 101, preventing the connection between the rotating shafts 41 and the rotating hole 101 from coming loose. It should be noted that when the timing belt 51 transmits power to the two gears 52, even if there is a slight synchronization delay between the two gears 52, it will not affect the smooth completion of the scraping operation by the two scraping rods 3.

[0028] like Figures 1 to 6 As shown, a mounting bolt 43 is connected to the side of the connecting plate 42 away from the rotating shaft 41. The threaded rod of the mounting bolt 43 passes through the connecting plate 42 and connects to the rotating shaft 41. The mounting bolt 43 facilitates the installation and disassembly between the connecting plate 42 and the rotating shaft 41, and allows for the replacement and installation of the scraper rod 3 when it is deformed or damaged.

[0029] like Figures 1 to 6 As shown, a mounting block 44 is fixedly connected to one end of the rotating shaft 41 near the connecting plate 42. A mounting hole 401 is provided on the side of the connecting plate 42 near the rotating shaft 41. The mounting block 44 is slidably connected to the mounting hole 401. The mounting block 44 and the mounting hole 401 are non-circular structures that match each other. The threaded rod of the mounting bolt 43 passes through the connecting plate 42 and is threadedly connected to the mounting block 44. When installing the scraper 3 on the rotating shaft 41, first, the mounting hole 401 of the connecting plate 42 at the end of the scraper 3 is fitted onto the mounting block 44 at the outer end of the rotating shaft 41. Then, the mounting bolt 43 is tightened and fixed onto the mounting block 44 through the preset hole on the connecting plate 42. Due to the non-circular structure design (such as hexagonal, rectangular, etc.) of the mounting block 44 and the mounting hole 401, when the rotating shaft 41 drives the connecting plate 42 to rotate, the torque is transmitted through the mounting block 44 and the mounting hole 401, which can prevent the mounting bolt 43 from rotating, improve the stability of the rotational torque transmission, and ensure that the scraper 3 can smoothly perform reciprocating scraping operations on the outside of the radar body 2.

[0030] like Figures 1 to 6 As shown, a groove 402 is provided on the side of the connecting plate 42 away from the rotating shaft 41, and the nut of the mounting bolt 43 is located in the groove 402. After the mounting bolt 43 tightens and fixes the connecting plate 42 and the mounting block 44, the bolt nut is located in the groove 402, which can prevent the bolt nut from protruding on the outside of the connecting plate 42 and improve the aesthetics of the connection.

[0031] like Figures 1 to 6As shown, a scraper blade 7 is connected to the side of the scraper 3 near the radar body 2. The scraper blade 7 is slidably connected to the inner and outer surfaces of the radar body 2. The inner side of the scraper 3 is scraped and cleaned against the outer side of the radar body 2 through the scraper blade 7, which can reduce frictional damage to the outer side of the radar body 2. The scraper blade 7 can be made of soft materials such as silicone or sponge.

[0032] like Figures 1 to 6 As shown, a trapezoidal groove 301 is provided on the side of the scraper bar 3 near the scraper blade 7. A trapezoidal strip 71 is fixedly connected to the side wall of the scraper blade 7, and the trapezoidal strip 71 is slidably connected to the trapezoidal groove 301. The scraper blade 7 can be quickly replaced through the trapezoidal strip 71 within the trapezoidal groove 301 of the scraper bar 3. When the scraper blade 7 suffers damage such as oxidation or breakage that affects the scraping effect, the scraper blade 7 can be replaced to maintain a good scraping and cleaning effect on the radar body 2.

[0033] like Figures 1 to 6 As shown, the scraper blade 7 has several scraping grooves 701 on the side away from the scraper bar 3, and a raised wiping strip 72 is provided in the middle of the several scraping grooves 701. When the scraper blade 7 scrapes and cleans the outside of the radar body 2, the scraping grooves 701 on both sides can scrape off the dust, mud, rainwater and other dirt attached to the outside of the radar body 2, and the raised wiping strip 72 in the middle squeezes and wipes the scraped area on the outside of the radar body 2, thereby improving the scraping and cleaning effect of dirt on the outside of the radar body 2.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A laser millimeter-wave radar integrated vehicle-mounted intelligent braking triggering device, comprising a triggering device body (1) and two radar bodies (2) embedded at one end of the triggering device body (1), characterized in that: Two scraper rods (3) are connected to the outer wall of the trigger device body (1) near the radar body (2). The two scraper rods (3) are respectively matched with the two radar bodies (2). The ends of the two scraper rods (3) are connected to rotating components (4). A linkage component (5) is connected between the two rotating components (4). One of the rotating components (4) is connected to a reciprocating motor (6) at the end away from the scraper rod (3). The reciprocating motor (6) is embedded inside the trigger device body (1).

2. The integrated laser millimeter-wave radar vehicle-mounted intelligent brake triggering device according to claim 1, characterized in that: The rotating assembly (4) includes a rotating shaft (41) and a connecting plate (42). The trigger device body (1) has a rotating hole (101) on the side near the radar body (2). The rotating shaft (41) is rotatably connected to the rotating hole (101). The end of the rotating hole (101) away from the trigger device body (1) is connected to the connecting plate (42). One end of the scraper (3) is fixedly connected to the connecting plate (42). One of the rotating shafts (41) of the two rotating assemblies (4) is fixedly connected to the output shaft of the reciprocating motor (6). The linkage assembly (5) is connected to the two rotating shafts (41).

3. The integrated laser millimeter-wave radar vehicle-mounted intelligent braking triggering device according to claim 2, characterized in that: The linkage assembly (5) includes a timing belt (51) and two gears (52). A linkage cavity (102) is provided between the two rotating holes (101). The two gears (52) are located at both ends inside the linkage cavity (102), and the two gears (52) are fixedly connected to the outer walls of the two rotating shafts (41). The timing belt (51) is located inside the linkage cavity (102), and the two ends of the timing belt (51) are respectively fitted with two gears (52) and mesh with the two gears (52) for transmission.

4. The integrated laser millimeter-wave radar vehicle-mounted intelligent braking triggering device according to claim 2, characterized in that: The rotating hole (101) is located directly below the radar body (2).

5. The integrated laser millimeter-wave radar vehicle-mounted intelligent brake triggering device according to claim 2, characterized in that: The connecting plate (42) is connected to a mounting bolt (43) on the side away from the rotating shaft (41). The threaded rod of the mounting bolt (43) passes through the connecting plate (42) and is connected to the rotating shaft (41).

6. The integrated laser millimeter-wave radar vehicle-mounted intelligent brake triggering device according to claim 5, characterized in that: The rotating shaft (41) is fixedly connected to a mounting block (44) at one end near the connecting plate (42). The connecting plate (42) has a mounting hole (401) on one side near the rotating shaft (41). The mounting block (44) is slidably connected to the mounting hole (401). The mounting block (44) and the mounting hole (401) are non-circular structures that match each other. The threaded rod of the mounting bolt (43) passes through the connecting plate (42) and is threadedly connected to the mounting block (44).

7. The integrated laser millimeter-wave radar vehicle-mounted intelligent brake triggering device according to claim 5, characterized in that: The connecting plate (42) has a groove (402) on the side away from the rotating shaft (41), and the nut of the mounting bolt (43) is located in the groove (402).

8. The integrated laser millimeter-wave radar vehicle-mounted intelligent brake triggering device according to claim 1, characterized in that: The scraper (3) is connected to a scraper (7) on the side near the radar body (2), and the scraper (7) is slidably connected to the inner and outer surfaces of the radar body (2).

9. The integrated laser millimeter-wave radar vehicle-mounted intelligent brake triggering device according to claim 8, characterized in that: The scraper (3) has a trapezoidal groove (301) on one side near the scraper (7), and a trapezoidal strip (71) is fixedly connected to the side wall of the scraper (7), and the trapezoidal strip (71) is slidably connected to the trapezoidal groove (301).

10. The integrated laser millimeter-wave radar vehicle-mounted intelligent brake triggering device according to claim 8, characterized in that: The scraper blade (7) has several scraping grooves (701) on the side away from the scraper rod (3), and a raised scraping strip (72) is provided in the middle of the several scraping grooves (701).

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