Unmanned vehicle sensor device

Abstract

The utility model belongs to the technical field of unmanned vehicle sensors, particularly relates to an unmanned vehicle sensor device, and aims to solve the problems that an unmanned vehicle control system is affected to make an accurate judgment due to fuzzy image acquisition caused by dust easily accumulated on protective glass at the front end of a camera, a worker needs to regularly clean the unmanned vehicle, and the unmanned vehicle sensor device is inconvenient to use. Comprising a base, an omni-directional laser radar is fixedly installed in the center of the top of the base, four installation grooves are formed in the side wall of the base in an annular array mode, wide-angle cameras used for image acquisition are fixedly installed in the installation grooves, and high-definition protection glass is installed at notches of the installation grooves in an embedded mode. When the wide-angle camera is used, the cleaning assembly and the anti-fog assembly are integrated, so that the image acquisition accuracy and stability of the wide-angle camera can be effectively improved, the stability and reliability of the device in a severe environment are further improved, and the navigation and decision-making capabilities of the unmanned vehicle are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned vehicle sensors, in particular to an unmanned vehicle sensor device. Background Art

[0002] Autonomous vehicle sensors generally refer to sensor devices used in self-driving cars or driverless vehicles. These sensors are used to collect information about the vehicle's surroundings to help the vehicle make decisions and avoid accidents. Common autonomous vehicle sensors include: LiDARs that measure the distance and shape around the vehicle to create high-resolution three-dimensional maps, and cameras that identify other vehicles, pedestrians, and road signs to help the vehicle with visual perception. The sensors work together to provide autonomous vehicles with comprehensive environmental perception capabilities to ensure safe and efficient driving.

[0003] After searching, the patent with announcement number CN209738995U discloses a sensor combination device for an unmanned vehicle, including a load-bearing base plate, a box body is fixedly connected to the top of the load-bearing base plate, a front image recognition sensor is provided in the inner cavity of the box body, a PCL controller is provided on the right side of the front image recognition sensor, an electric telescopic rod is provided on the right side of the PCL controller, a sliding groove is provided on the outside of the electric telescopic rod, a fixed base plate is provided on the top of the electric telescopic rod, and a laser radar sensor is provided on the top of the fixed base plate.

[0004] During the use of the front image recognition sensor and the rear image recognition sensor of the above-mentioned unmanned vehicle sensor combination device, the protective glass at the front end of the camera is prone to accumulate dust, resulting in blurred image acquisition and thus affecting the unmanned vehicle control system from making accurate judgments. The sensor needs to be cleaned regularly by staff, which is inconvenient to use.

[0005] In response to the above problems, the present utility model document proposes an unmanned vehicle sensor device. Utility Model Content

[0006] The utility model provides an unmanned vehicle sensor device, which solves the shortcomings of the prior art that the protective glass at the front end of the camera is prone to dust accumulation, resulting in blurred image acquisition and thus affecting the unmanned vehicle control system from making accurate judgments, and requires regular cleaning by staff, which is inconvenient to use.

[0007] The utility model provides the following technical solutions:

[0008] The unmanned vehicle sensor device includes:

[0009] A base, wherein an omnidirectional laser radar is fixedly installed in the center of the top of the base, and four mounting grooves are arranged in a circular array on the side wall of the base, and a wide-angle camera for image acquisition is fixedly installed in the mounting groove, and a high-definition protective glass is embedded and installed at the notch of the mounting groove;

[0010] A cleaning component is provided on the base and is used to clean dust on the surface of the high-definition protective glass to prevent dust from affecting the image acquisition work of the wide-angle camera;

[0011] The anti-fog component is installed on the high-definition protective glass to prevent the formation of water mist on the surface of the high-definition protective glass due to the temperature difference between the inside and outside of the high-definition protective glass when used in winter, thereby improving the image acquisition accuracy of the wide-angle camera.

[0012] In a possible design, the cleaning component includes an annular frame arranged outside the base, and four groups of bristles are fixedly arranged in an annular array on the inner wall of the annular frame, and the four groups of bristles correspond one by one to the positions of four high-definition protective glasses.

[0013] In one possible design, a cylindrical cavity is provided in the center of the base, and reciprocating screws are rotatably installed at both ends of the inner wall of the cylindrical cavity. A matching sliding seat is threadedly connected to the reciprocating screw, and a driving motor for driving the reciprocating screw to rotate is fixedly installed in the center of the bottom of the outer wall of the base. The driving motor is electrically connected to the automatic control system of the unmanned vehicle, and four connecting rods are fixedly arranged in a circular array on the outer wall of the sliding seat. The base is provided with a slideway for slidingly installing the corresponding connecting rods, and the other end of the connecting rod passes through the slideway and is fixedly connected to the inner wall of the annular frame.

[0014] In one possible design, the anti-fog component includes a heating strip with built-in electric heating wires arranged on both sides of the high-definition protective glass, the heating strip is electrically connected to the automatic control system of the unmanned vehicle, one side of the heating strip is fixedly connected to the outer wall of the base, and the heating strip has multiple output ports for discharging heat at equal distances on one side facing the high-definition protective glass.

[0015] In a possible design, the distance between the annular frame and the base is greater than the width of the heating strip, thereby preventing the heating strip from affecting the up and down movement of the annular frame.

[0016] In a possible design, a protective sheet is fixedly installed on the top of the omnidirectional laser radar.

[0017] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0018] In this application, the working principle of the unmanned vehicle sensor device mainly depends on its structural design and the coordination between components. The following is a detailed description of the working principle of the unmanned vehicle sensor device:

[0019] 1. Working principle of cleaning components

[0020] The core components of the cleaning assembly are the annular frame and bristles. When the automatic control system of the unmanned vehicle detects dust on the surface of the high-definition protective glass, it will start the drive motor, which will drive the reciprocating screw to rotate, thereby driving the sliding seat to move up and down in the cylindrical cavity. The sliding seat is connected to the annular frame through a connecting rod, so the annular frame will also move up and down. In the process of the annular frame moving up and down, the bristles will contact the surface of the high-definition protective glass, thereby removing the dust attached to the glass surface.

[0021] 2. Working principle of anti-fog components

[0022] The anti-fog component consists of a heating strip and an output port. In winter or low temperature environments, the temperature difference between the inside and outside of the high-definition protective glass is large, which can easily cause water mist to form on the glass surface. In order to solve this problem, the unmanned vehicle's automatic control system will start the heating strip. The heating strip has a built-in electric heating wire. When powered on, it will generate heat. This heat is evenly discharged through the output port and directly acts on the surface of the high-definition protective glass. The surface temperature of the heated glass increases, and the temperature difference between the glass and the water vapor decreases, thereby effectively preventing the formation of water mist.

[0023] 3. Working Principle of Omnidirectional LiDAR

[0024] Omnidirectional LiDAR is an important component for unmanned vehicles to perceive the environment. It measures the distance and angle information of the surrounding environment by emitting laser beams and receiving reflected signals. After processing, this information can help unmanned vehicles identify obstacles and plan paths. In order to protect the omnidirectional LiDAR from direct impact from external objects and the influence of bad weather, a protective sheet is fixed on its top.

[0025] 4. Working Principle of Wide-angle Camera

[0026] The wide-angle camera is responsible for collecting image information of the environment around the unmanned vehicle. Its lens is isolated from the outside world by high-definition protective glass to prevent the influence of dust and water mist on the image quality. The coordinated work of the cleaning component and the anti-fog component ensures that the wide-angle camera can continuously obtain clear and accurate image data, providing strong support for the navigation and decision-making of the unmanned vehicle.

[0027] The utility model has the following beneficial effects:

[0028] The utility model integrates a cleaning component and an anti-fog component, which can effectively improve the image acquisition accuracy and stability of the wide-angle camera, further improve the stability and reliability of the device in harsh environments, and thus improve the navigation and decision-making capabilities of the unmanned vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the three-dimensional structure of the unmanned vehicle sensor device provided by an embodiment of the utility model;

[0030] Figure 2 A schematic diagram of the structure of the unmanned vehicle sensor device provided by an embodiment of the utility model from another perspective;

[0031] Figure 3 A schematic diagram of the internal structure of the base of the unmanned vehicle sensor device provided by an embodiment of the utility model;

[0032] Figure 4 A schematic diagram of the structure of the cleaning component and the anti-fog component of the unmanned vehicle sensor device provided by an embodiment of the utility model.

[0033] Figure numerals: 1. base; 2. omnidirectional laser radar; 3. mounting slot; 4. wide-angle camera; 5. high-definition protective glass; 6. ring frame; 7. bristles; 8. cylindrical cavity; 9. reciprocating screw; 10. sliding seat; 11. connecting rod; 12. driving motor; 13. heating strip; 14. output port; 15. slideway; 16. protective sheet. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0037] Embodiment 1

[0038] The present application provides an unmanned vehicle sensor device, which mainly includes a base 1, an omnidirectional laser radar 2, a wide-angle camera 4, a high-definition protective glass 5, and a cleaning component and an anti-fog component. The following is a detailed description of a specific implementation of the device;

[0039] Please refer to Figure 1-4 , unmanned vehicle sensor device, which is used in the field of unmanned vehicle sensors, including:

[0040] A base 1, an omnidirectional laser radar 2 is fixedly installed at the central position of the top of the base 1, and four mounting grooves 3 are arranged in a circular array on the side wall of the base 1, and wide-angle cameras 4 for image acquisition are fixedly installed in these mounting grooves 3 respectively. The four wide-angle cameras 4 form a panoramic image acquisition camera, and a high-definition protective glass 5 is embedded and installed at the notch of each mounting groove 3, and the high-definition protective glass 5 can effectively protect the lens of the wide-angle camera 4 from dust and dirt;

[0041] The cleaning component includes an annular frame 6 disposed outside the base 1, and four groups of bristles 7 are fixedly disposed in an annular array on the inner wall of the annular frame 6, and each group of bristles 7 corresponds to the position of the corresponding high-definition protective glass 5 one by one, so that when the annular frame 6 moves, the bristles 7 can effectively remove dust on the surface of the high-definition protective glass 5;

[0042] In order to realize the up and down movement of the annular frame 6, a cylindrical cavity 8 is arranged in the center of the base 1, and a reciprocating screw 9 is rotatably installed at both ends of the inner wall of the cylindrical cavity 8, and a sliding seat 10 is threadedly connected to the reciprocating screw 9. A driving motor 12 is fixedly installed in the center of the bottom of the outer wall of the base 1. The driving motor 12 is electrically connected to the automatic control system of the unmanned vehicle. When the driving motor 12 is working, it will drive the reciprocating screw 9 to rotate, so that the sliding seat 10 moves up and down in the cylindrical cavity 8. Four connecting rods 11 are fixedly arranged in a circular array on the outer wall of the sliding seat 10, and a slideway 15 for slidingly installing the corresponding connecting rods 11 is provided on the base 1. The other end of the connecting rod 11 passes through the slideway 15 and is fixedly connected to the inner wall of the annular frame 6. In this way, when the sliding seat 10 moves up and down, it will drive the annular frame 6 to move up and down through the connecting rod 11, thereby realizing the cleaning of the high-definition protective glass 5 by the bristles 7;

[0043] In order to prevent the high-definition protective glass 5 from forming water mist on its surface when used in winter, an anti-fog component is designed. The anti-fog component includes heating strips 13 with built-in electric heating wires arranged on both sides of the high-definition protective glass 5. The heating strips 13 are electrically connected to the automatic control system of the unmanned vehicle. When the outside temperature is low, the automatic control system of the unmanned vehicle will start the heating strips 13. One side of the heating strips 13 is fixedly connected to the outer wall of the base 1. The heating strips 13 are connected to a plurality of output ports 14 for discharging heat at equal distances on one side of the high-definition protective glass 5. In this way, the heating strips 13 can release heat to the high-definition protective glass 5 through the output ports 14 to prevent water mist from forming on its surface.

[0044] When the unmanned vehicle is running, the wide-angle camera 4 will continuously collect image information of the surrounding environment to provide support for the navigation and decision-making of the unmanned vehicle. When dust appears on the surface of the high-definition protective glass 5, the automatic control system of the unmanned vehicle will start the drive motor 12 to drive the annular frame 6 and the brush 7 to move up and down to clean the surface of the high-definition protective glass 5. At the same time, when used in winter, the automatic control system of the unmanned vehicle will also start the heating strip 13 according to the external temperature to prevent water mist from forming on the surface of the high-definition protective glass 5.

[0045] Embodiment 2

[0046] Improvements based on Example 1:

[0047] Please refer to Figure 1 and Figure 4 A protective sheet 16 is fixedly arranged on the top of the omnidirectional laser radar 2, which can protect the omnidirectional laser radar 2 from direct impact by external objects and the influence of bad weather. In addition, the distance between the annular frame 6 and the base 1 is designed to be larger than the width of the heating strip 13 to ensure that the annular frame 6 will not interfere with the heating strip 13 when moving up and down.

[0048] In summary, the unmanned vehicle sensor device of the present application can effectively improve the image acquisition accuracy and stability of the wide-angle camera 4 by integrating cleaning components and anti-fog components, thereby improving the navigation and decision-making capabilities of the unmanned vehicle. At the same time, the device has a simple structure and is easy to operate, and is suitable for various unmanned vehicle application scenarios.

[0049] However, as is well known to those skilled in the art, the working principles and wiring methods of the omnidirectional laser radar 2, wide-angle camera 4, drive motor 12 and heating strip 13 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0050] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflicts, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. An unmanned vehicle sensor device, characterized in that: include: A base (1), wherein an omnidirectional laser radar (2) is fixedly installed at the center of the top of the base (1), four installation grooves (3) are arranged in a circular array on the side wall of the base (1), a wide-angle camera (4) for image acquisition is fixedly installed in the installation groove (3), and a high-definition protective glass (5) is embedded and installed at the notch of the installation groove (3); A cleaning component, arranged on the base (1), used to clean dust on the surface of the high-definition protective glass (5) to prevent dust from affecting the image acquisition work of the wide-angle camera (4); The anti-fog component is arranged at the high-definition protective glass (5) and is used to prevent the formation of water mist on the surface of the high-definition protective glass (5) due to the temperature difference between the inside and outside of the high-definition protective glass (5) when used in winter, thereby improving the image acquisition accuracy of the wide-angle camera (4).

2. The unmanned vehicle sensor device according to claim 1, characterized in that: The cleaning component comprises an annular frame (6) arranged outside the base (1), and four groups of bristles (7) are fixedly arranged in an annular array on the inner wall of the annular frame (6), and the four groups of bristles (7) correspond to the positions of four high-definition protective glasses (5) one by one.

3. The unmanned vehicle sensor device according to claim 2, characterized in that: A cylindrical cavity (8) is provided in the center of the base (1), and reciprocating screws (9) are rotatably installed at both ends of the inner wall of the cylindrical cavity (8), and a matching sliding seat (10) is threadedly connected to the reciprocating screw (9). A driving motor (12) for driving the reciprocating screw (9) to rotate is fixedly installed in the center of the bottom of the outer wall of the base (1), and the driving motor (12) is electrically connected to the automatic control system of the unmanned vehicle. Four connecting rods (11) are fixedly arranged in a circular array on the outer wall of the sliding seat (10), and a slideway (15) for slidably installing the corresponding connecting rods (11) is provided on the base (1), and the other end of the connecting rod (11) passes through the slideway (15) and is fixedly connected to the inner wall of the annular frame (6).

4. The unmanned vehicle sensor device according to claim 3, characterized in that: The anti-fog assembly comprises heating strips (13) with built-in electric heating wires arranged on both sides of the high-definition protective glass (5); the heating strips (13) are electrically connected to the automatic control system of the unmanned vehicle; one side of the heating strip (13) is fixedly connected to the outer wall of the base (1); and the heating strip (13) is connected to a plurality of output ports (14) for discharging heat at equal distances on one side of the high-definition protective glass (5).

5. The unmanned vehicle sensor device according to claim 4, characterized in that: The distance between the annular frame (6) and the base (1) is greater than the width of the heating strip (13), thereby preventing the heating strip (13) from affecting the up and down movement of the annular frame (6).

6. The unmanned vehicle sensor device according to claim 1, characterized in that: A protective sheet (16) is fixedly arranged on the top of the omnidirectional laser radar (2).

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