Positioning device based on camera and millimeter wave radar

Abstract

The utility model discloses a positioning device based on a camera and a millimeter wave radar, which comprises a rearview mirror, a bottom plate of the rearview mirror is connected with a movable plate in a sliding manner, and a radar body and a camera body are arranged above the movable plate. Through cooperation of the protective shell, the movable plate, the rearview mirrors, the radar body, the camera body and the air cylinder, the radar body and the camera body can be stored in the rearview mirrors on the two sides of a vehicle, and when the radar needs to be used and the rainfall sensor senses that the rainfall is large, the air cylinder can push the protective shell and the movable plate, so that the radar body and the camera body are protected. The three millimeter-wave radar bodies and the three camera bodies can be operated in rainy and snowy days, and when one of the millimeter-wave radar bodies or the camera bodies senses that an obstacle exists in front, the radar bodies and the camera bodies can be driven to stretch out downwards in the rearview mirror. Therefore, the millimeter-wave radar can be compared with an ultra-large wide-angle range formed by combining the three camera bodies, and the reliability of the millimeter-wave radar in rainy and snowy weather is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted millimeter-wave radars, and in particular to a positioning device based on a camera and a millimeter-wave radar. Background Art

[0002] Millimeter wave radar is a radar that works in the millimeter wave band (millimeter wave) detection. Millimeter wave refers to electromagnetic waves with a wavelength between 1-10mm. It has a short wavelength and a wide frequency band, which makes it easier to achieve a narrow beam. The radar has a high resolution and is not easily interfered with. Millimeter wave radar is a high-precision sensor that measures the relative distance, relative speed, and direction of the object being measured. It was used in the military field in the early days. With the development and advancement of radar technology, millimeter wave radar sensors have begun to be used in automotive electronics, drones, intelligent transportation and other fields;

[0003] The millimeter-wave radar on the car can enable the vehicle to cruise adaptively and follow the vehicle in front. When the car may collide with surrounding objects, the warning reminder device will inform the driver or the vehicle to take automatic emergency braking to avoid the collision. When a collision is inevitable, the damage caused by the collision can be reduced by controlling the brakes, headrests, seat belts, etc.

[0004] Conventional on-board millimeter-wave radars are installed on the front bumper of a car below the license plate and are used in conjunction with a camera installed in front of a rearview mirror. However, millimeter-wave radars are subject to strong interference in rainy and snowy weather, and are also limited by the fact that wipers cannot clean rainwater flowing on the front windshield in front of the camera. As a result, the sensitivity and reliability of the millimeter-wave radar and camera in rainy and snowy weather are reduced. In order to solve this technical problem, the utility model proposes a positioning device based on a camera and a millimeter-wave radar. Utility Model Content

[0005] The main purpose of the utility model is to provide a positioning device based on a camera and a millimeter-wave radar, which can effectively solve the problems mentioned in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A positioning device based on a camera and a millimeter-wave radar comprises a rearview mirror, a bottom plate of the rearview mirror being slidably connected to a movable plate, a radar body and a camera body being arranged above the movable plate, an outer surface of the movable plate being fixedly connected to a protective shell, and an outer portion of the protective shell being arranged with a cylinder, a hydraulic rod and a motor.

[0008] Preferably, the bottom surface of the camera body is rotatably connected to the outer surface of the movable plate, a circular groove is provided on the inner side of the movable plate, the radar body is slidably connected to the outer surface of the circular groove, a connecting plate is fixedly installed on the outer surface of the radar body, and a rotating rod is fixedly connected to the connecting plate and the outer surface of the camera body.

[0009] Preferably, the outer surface of the rotating rod is rotatably connected to the inner wall of the protective shell, and a cross groove is provided at the top of the rotating rod.

[0010] Preferably, the hydraulic rod is installed on the inner surface of the rearview mirror, the output end of the hydraulic rod is fixedly connected to a dry sponge, the bottom surface of the dry sponge is slidably connected to the inner surface of the rearview mirror, and a reserved groove is opened on the inner side of the protective shell, and the inner wall of the reserved groove is slidably connected to the outer surface of the dry sponge.

[0011] Preferably, the inner surface of the rearview mirror is fixedly connected to the shell, the motor is installed on the outer surface of the shell, the output end of the motor is fixedly connected to the driving rod, the outer surface of the driving rod is rotatably connected to the inner wall of the shell, the bottom end of the driving rod is provided with a cross convex groove, and the outer surface of the cross convex groove is slidably connected to the outer surface of the cross groove.

[0012] Preferably, a sliding rod is slidably connected to the inner wall of the outer shell, the bottom end of the sliding rod is fixedly connected to the outer surface of the movable plate, the top end of the sliding rod is fixedly connected to a limiting plate, the cylinder is installed on the outer surface of the outer shell, the output end of the cylinder is fixedly connected to a push rod, the outer surface of the push rod is slidably connected to the inner wall of the outer shell, and the bottom end of the push rod is fixedly connected to the outer surface of the protective shell.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, through the cooperation between the protective shell, the movable plate, the rearview mirror, the radar body, the camera body and the cylinder, the radar body and the camera body can be stored in the rearview mirrors on both sides of the vehicle, the protective shell and the movable plate can provide protection for the radar body and the camera body, when it is needed to use, when the wiper is turned on, and the rain sensor senses that the rainfall is heavy, the cylinder will be turned on, so that the cylinder can push the protective shell and the movable plate, thereby driving the radar body and the camera body to extend downward in the rearview mirror, so that three millimeter-wave radar bodies and camera bodies can be operated at the same time in rainy and snowy weather, and the three millimeter-wave One of the millimeter-wave radar bodies is set on the conventional front bumper, and the remaining two are set under the rearview mirrors on both sides. One of the three camera bodies is set in front of the rearview mirror, and the remaining two are set under the rearview mirrors on both sides. When one of the millimeter-wave radar bodies or cameras senses that there is an obstacle in front, but the other two millimeter-wave radar bodies do not sense it, it can be compared with the ultra-wide-angle range formed by the combination of the three camera bodies, so as to accurately judge whether the obstacle in front is a false alarm or the position and distance of the obstacle in front, thereby effectively improving the reliability of the millimeter-wave radar in rainy and snowy weather.

[0015] In the utility model, through the cooperation between the hydraulic rod, the dry sponge, the reserved groove, the protective shell, the camera body and the radar body, the hydraulic rod can push the dry sponge, so that the dry sponge can pass through the reserved groove and the protective shell, and wipe the outer surface of the camera body or the radar body. The dry sponge has a good absorption effect, so that each time it is stored, it can clean and absorb water on the surface of the camera body and the radar body, so that it can achieve the effect of self-cleaning, which further improves the practicality of the device and its reliability in rainy and snowy environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a positioning device based on a camera and a millimeter-wave radar located at a camera installation location in the utility model;

[0017] Figure 2 This is a schematic diagram of the overall main structure of a positioning device based on a camera and a millimeter-wave radar in the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of a protective shell of a positioning device based on a camera and a millimeter-wave radar in the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of a housing of a positioning device based on a camera and a millimeter-wave radar according to the utility model;

[0020] Figure 5 The utility model is a schematic diagram of the overall extended state of a positioning device based on a camera and a millimeter-wave radar.

[0021] In the figure: 1. rearview mirror; 2. flap; 3. radar body; 4. camera body; 5. protective shell; 6. cylinder; 7. hydraulic rod; 8. motor; 9. circular slide; 10. connecting plate; 11. rotating rod; 12. cross groove; 13. dry sponge; 14. reserved groove; 15. outer shell; 16. driving rod; 17. cross convex groove; 18. sliding rod; 19. limit plate; 20. push rod. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-5 As shown, a positioning device based on a camera and a millimeter-wave radar comprises a rearview mirror 1, a bottom plate of the rearview mirror 1 is slidably connected with a movable plate 2, a radar body 3 and a camera body 4 are arranged above the movable plate 2, a protective shell 5 is fixedly connected to the outer surface of the movable plate 2, a cylinder 6, a hydraulic rod 7 and a motor 8 are arranged on the outside of the protective shell 5, the radar body 3 and the camera body 4 can be stored in the rearview mirror 1 on both sides of the vehicle, the protective shell 5 and the movable plate 2 can provide protection for the radar body 3 and the camera body 4, when it is needed, when the wiper is turned on, and the rain sensor senses that the rainfall is heavy, the cylinder 6 will be turned on, so that the cylinder 6 can push the protective shell 5 and the movable plate 2, thereby driving the radar body 3 and the camera body 4 to extend downward in the rearview mirror 1 Thus, three millimeter-wave radar bodies 3 and camera bodies 4 can be operated simultaneously in rainy and snowy weather. One of the three millimeter-wave radar bodies 3 is arranged at the conventional front bumper, and the remaining two are arranged under the rearview mirrors 1 on both sides. One of the three camera bodies 4 is arranged in front of the rearview mirror, and the remaining two are arranged under the rearview mirrors 1 on both sides. When one of the millimeter-wave radar bodies 3 or the camera senses that there is an obstacle in front, but the other two millimeter-wave radar bodies 3 do not sense it, it can be compared with the ultra-wide-angle range formed by the combination of the three camera bodies 4, so as to accurately judge whether the obstacle in front is a false alarm or the position and distance of the obstacle in front, thereby effectively improving the reliability of the millimeter-wave radar in rainy and snowy weather.

[0024] The bottom surface of the camera body 4 is rotatably connected to the outer surface of the movable plate 2. A circular slide groove 9 is provided on the inner side of the movable plate 2. The radar body 3 is slidably connected to the outer surface of the circular slide groove 9. A connecting disk 10 is fixedly installed on the outer surface of the radar body 3. A rotating rod 11 is fixedly connected to the connecting disk 10 and the outer surface of the camera body 4. The radar body 3 can rotate according to the center of the slide groove, so that the radar body 3 can tilt the radar surface by ninety degrees, and the rotating rod 11 can control the rotation of the camera body and the radar body 3 through the connecting disk 10.

[0025] The outer surface of the rotating rod 11 is rotatably connected to the inner wall of the protective shell 5. A cross groove 12 is provided at the top of the rotating rod 11. A rubber ring is installed inside the protective shell 5. The rubber ring is sleeved on the outer surface of the rotating rod 11, thereby increasing the friction between the rotating rod 11 and the protective shell 5, thereby reducing the self-rotation of the rotating rod 11 and the camera body 4 or radar body 3 below due to the windshield.

[0026] The hydraulic rod 7 is installed on the inner surface of the rearview mirror 1, and the output end of the hydraulic rod 7 is fixedly connected with a dry sponge 13. The bottom surface of the dry sponge 13 is slidably connected to the inner surface of the rearview mirror 1. A reserved groove 14 is provided on the inner side of the protective shell 5, and the inner wall of the reserved groove 14 is slidably connected to the outer surface of the dry sponge 13. The hydraulic rod 7 can push the dry sponge 13 so that the dry sponge 13 can pass through the reserved groove 14 and pass through the protective shell 5, and wipe the outer surface of the camera body 4 or the radar body 3. The dry sponge 13 has a good absorption effect, so that each time it is stored, the surface of the camera body 4 and the radar body 3 can be cleaned and absorbed, so that it can achieve a self-cleaning effect, which further improves the practicability of the device and its reliability in rainy and snowy environments.

[0027] The inner surface of the rearview mirror 1 is fixedly connected to the shell 15, and the motor 8 is installed on the outer surface of the shell 15. The output end of the motor 8 is fixedly connected to the driving rod 16. The outer surface of the driving rod 16 is rotatably connected to the inner wall of the shell 15. The bottom end of the driving rod 16 is provided with a cross convex groove 17. The outer surface of the cross convex groove 17 is slidably connected to the outer surface of the cross groove 12. The motor 8 can drive the driving rod 16 to rotate. When the cross groove and the cross groove 12 contact each other, the driving rod 16 can drive the rotating rod 11 to rotate. The motor 8 is a servo motor, and it will rotate precisely ninety degrees each time it rotates.

[0028] The inner wall of the outer shell 15 is slidably connected with a slide rod 18, the bottom end of the slide rod 18 is fixedly connected to the outer surface of the movable plate 2, the top end of the slide rod 18 is fixedly connected to a limit plate 19, the cylinder 6 is installed on the outer surface of the outer shell 15, the output end of the cylinder 6 is fixedly connected with a push rod 20, the outer surface of the push rod 20 is slidably connected to the inner wall of the outer shell 15, the bottom end of the push rod 20 is fixedly connected to the outer surface of the protective shell 5, the cylinder 6 can push the protective shell 5 and the movable plate 2 to move up and down, when the protective shell 5 and the movable plate 2 move downward, they can move in the direction given by the slide rod 18, and the limit plate 19 can serve as the minimum limit for the downward movement of the movable plate 2.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A positioning device based on a camera and a millimeter-wave radar, characterized in that: The invention comprises a rearview mirror (1), wherein a bottom plate of the rearview mirror (1) is slidably connected to a movable plate (2), a radar body (3) and a camera body (4) are arranged above the movable plate (2), a protective shell (5) is fixedly connected to the outer surface of the movable plate (2), and a cylinder (6), a hydraulic rod (7) and a motor (8) are arranged outside the protective shell (5); The bottom surface of the camera body (4) is rotatably connected to the outer surface of the movable plate (2); a circular slide groove (9) is provided on the inner side of the movable plate (2); the radar body (3) is slidably connected to the outer surface of the circular slide groove (9); a connecting plate (10) is fixedly installed on the outer surface of the radar body (3); and a rotating rod (11) is fixedly connected to the connecting plate (10) and the outer surface of the camera body (4); The outer surface of the rotating rod (11) is rotatably connected to the inner wall of the protective shell (5), and a cross groove (12) is provided at the top end of the rotating rod (11); The hydraulic rod (7) is mounted on the inner surface of the rearview mirror (1), the output end of the hydraulic rod (7) is fixedly connected to a dry sponge (13), the bottom surface of the dry sponge (13) is slidably connected to the inner surface of the rearview mirror (1), the inner side of the protective shell (5) is provided with a reserved groove (14), the inner wall of the reserved groove (14) is slidably connected to the outer surface of the dry sponge (13); The inner surface of the rearview mirror (1) is fixedly connected to a housing (15), the motor (8) is mounted on the outer surface of the housing (15), the output end of the motor (8) is fixedly connected to a driving rod (16), the outer surface of the driving rod (16) is rotatably connected to the inner wall of the housing (15), a cross convex groove (17) is provided at the bottom end of the driving rod (16), and the outer surface of the cross convex groove (17) is slidably connected to the outer surface of the cross groove (12); The inner wall of the outer shell (15) is slidably connected to a slide rod (18), the bottom end of the slide rod (18) is fixedly connected to the outer surface of the movable plate (2), the top end of the slide rod (18) is fixedly connected to a limit plate (19), the cylinder (6) is installed on the outer surface of the outer shell (15), the output end of the cylinder (6) is fixedly connected to a push rod (20), the outer surface of the push rod (20) is slidably connected to the inner wall of the outer shell (15), and the bottom end of the push rod (20) is fixedly connected to the outer surface of the protective shell (5).

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