A dual-signal-based beidou satellite vehicle-mounted monitoring device

Abstract

The application relates to the technical field of vehicle-mounted monitoring equipment, in particular to a Beidou satellite vehicle-mounted monitoring device based on double signals, which comprises an outer frame, a U-shaped frame fixedly connected to the outer frame, a camera slidingly connected to the U-shaped frame, a vibration sensor fixedly connected to the camera, heat dissipation fins fixedly connected to the bottom of the outer frame and a tightness adjusting assembly installed on the outer frame. The tightness adjusting assembly comprises an electric push rod, a horizontal plate, a spring, a pushing plate and a pushing rod, the electric push rod is fixed to the top of the inner side of the outer frame, the horizontal plate is fixed to the movable end of the electric push rod, the pushing plate is fixed to the bottom of the camera, the spring is fixed between the horizontal plate and the pushing plate, the pushing rod is fixed to the bottom of the horizontal plate and extends to the outside of the outer frame and is fixed to the heat dissipation fins. The technical problem that the existing vehicle-mounted monitoring relies on rigid reinforcement, does not have the dynamic fastening and self-adaptive adjusting capacity and is difficult to adjust the fastening strength according to the vibration amplitude strength is solved.

Description

Technical Field

[0001] This invention relates to the field of vehicle-mounted monitoring equipment technology, specifically to a vehicle-mounted monitoring device based on dual-signal BeiDou satellites. Background Technology

[0002] Vehicle sensors such as cameras, radar, and inertial sensors, along with their lenses, are core components of the perception layer, and their stability directly affects the reliability of functions such as driver assistance and navigation. Existing equipment suffers from the following problems: Vibration can cause mechanical failure: Continuous vibrations during vehicle operation, such as engine vibration and road bumps, can loosen the lens fixing structure and cause fatigue in the sensor mounting bracket, leading to lens optical axis offset and sensor measurement reference drift, resulting in target recognition deviation, such as lane line recognition offset or distance measurement error.

[0003] Temperature changes cause performance drift: Drastic fluctuations in ambient temperature, such as high temperatures inside a car in summer and low temperatures in winter, can cause drift in the parameters of sensor electronic components. The thermal expansion and contraction of lens elements can cause deformation, resulting in blurred images, increased signal noise, and reduced detection accuracy, such as a decrease in the accuracy of pedestrian recognition at night.

[0004] Existing protection and compensation measures are insufficient: traditional vibration resistance relies on rigid reinforcement, such as metal brackets, which are prone to increased wear due to resonance; temperature drift compensation mostly uses static calibration, such as temperature calibration before leaving the factory, which cannot adapt to dynamic temperature changes; there is a lack of a mechanism for real-time monitoring of lens offset or sensor failure, making it difficult to provide timely warnings after a failure occurs, resulting in the system continuously outputting erroneous data.

[0005] These problems lead to increased failure rates of onboard sensors and lenses, large fluctuations in detection accuracy, seriously affecting the safety of functions such as autonomous driving and lane keeping, and increasing subsequent maintenance costs. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a vehicle-mounted monitoring device based on dual signals and BeiDou satellites. This solves the technical problem that existing vehicle-mounted monitoring systems rely on rigid reinforcement, lack dynamic fastening and adaptive adjustment capabilities, and are difficult to adjust the fastening force according to the intensity of vibration.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A vehicle-mounted monitoring device based on dual signals of Beidou satellite includes an outer frame, a U-shaped frame fixedly connected to the outer frame, a camera slidably connected to the U-shaped frame, a vibration sensor fixedly connected to the camera, a heat sink fixedly connected to the bottom of the outer frame, and a tension adjustment component installed on the outer frame. The tension adjustment assembly includes an electric push rod, a horizontal plate, a spring, a push plate, and a push rod. The electric push rod is fixed to the top of the inner side of the outer frame, the horizontal plate is fixed to the movable end of the electric push rod, the push plate is fixed to the bottom of the camera, the spring is fixed between the horizontal plate and the push plate, and the push rod is fixed to the bottom of the horizontal plate. The push rod extends to the outside of the outer frame and is fixed to the heat sink. After receiving a vibration sensor monitoring signal, the electric push rod drives the horizontal plate to rise to compress the spring, and the spring drives the push rod to rise and tighten the heat sink.

[0008] Furthermore, a vibration isolation plate is fixedly connected between the U-shaped frame and the outer frame, buffer plates are fixedly connected to both sides of the inner wall of the U-shaped frame, and multiple vibration damping legs are fixedly connected to the top of the outer frame.

[0009] Furthermore, the U-shaped frame includes side plates, fastening plates, and base feet. The two side plates are fixedly connected by the fastening plates, the camera is mounted on the fastening plates, and the base feet are fixed to the vibration isolation plates and the outer frame by screws.

[0010] Furthermore, a temperature sensor is fixedly connected to one side of the camera, and a fan is installed on one side of the outer frame.

[0011] Furthermore, the inner wall of the outer frame is provided with a filter frame adapted to the fan, and a shock-absorbing pad is fixedly connected between the filter frame and the outer frame.

[0012] Furthermore, a filter box is fixedly connected to the filter frame on the side away from the fan, and a receiving groove is provided between the filter box and the filter frame, with the filter installed in the receiving groove.

[0013] Furthermore, an elastic band is fixedly connected between the two sides of the filter frame, and a vibrator is fixedly connected in the middle of the elastic band.

[0014] Furthermore, a pump body is fixedly connected in the middle of the heat sink, and the inlet and outlet of the pump body are both connected to water pipes that pass through the heat sink. A contact pipe is fixedly connected to the bottom of the camera, and the contact pipe is connected to the water pipe to form a circulation pipe.

[0015] By employing the above technical solution, the present invention provides a vehicle-mounted monitoring device based on dual signals of Beidou satellite, which has at least the following beneficial effects: 1. This invention, through its adjustable tension component, utilizes dynamic fastening and adaptive adjustment to ensure the camera's clamping strength adapts to different vibration intensities, eliminating reliance on rigid reinforcement. The fastening force can be adjusted according to the intensity of vibration. When the vibration sensor detects severe vibration, the electric push rod drives the horizontal plate to increase the fastening force, and the spring presses the camera to prevent displacement caused by vibration. When the vibration sensor detects a small vibration amplitude, moderate fastening is maintained to avoid excessive pressure on the camera, which could cause component fatigue, thus balancing vibration resistance and mechanical lifespan.

[0016] 2. This invention forms a multi-level buffer by setting shock-absorbing feet, vibration isolation plates and buffer plates to reduce the transmission of vehicle vibration to the camera. The spring and push plate work together to absorb vibration energy through elastic deformation, avoiding lens displacement or bracket loosening caused by rigid impact. Through the synergistic effect of the multi-layer shock-absorbing structure, the impact of vibration on the sensor is reduced and the stability of the mechanical structure is improved.

[0017] 3. This invention, through the design of a fan, filter holder, filter box, and vibrator, utilizes multi-dimensional heat dissipation and temperature response to suppress camera performance drift caused by excessive temperature. The contact pipes and heat sink work together to use coolant circulation to remove heat from the camera. When the temperature rises, the fan accelerates ventilation, and the pump improves heat dissipation efficiency, avoiding parameter drift of electronic components caused by high temperature. The fan reverses and the vibration device cleans the filter, ensuring unobstructed heat dissipation channels and maintaining stable heat dissipation effect. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the camera and heat sink of the present invention; Figure 3 This is a schematic diagram of the external structure of the camera of the present invention; Figure 4 This is a schematic diagram of the structure of the filter frame and filter box of the present invention; Figure 5 This is a schematic diagram of the U-shaped frame of the present invention.

[0019] In the diagram: 1. Outer frame; 2. U-shaped frame; 21. Side plate; 22. Fastening plate; 23. Base; 3. Camera; 4. Temperature sensor; 5. Vibration sensor; 6. Heat sink; 7. Tension adjustment assembly; 71. Electric push rod; 72. Horizontal plate; 73. Spring; 74. Push plate; 75. Push rod; 8. Vibration isolation plate; 9. Buffer plate; 10. Vibration damping support; 11. Fan; 12. Filter screen frame; 13. Vibration damping pad; 14. Filter screen box; 15. Receiving slot; 16. Elastic band; 17. Vibrator; 18. Pump body; 19. Water pipe; 20. Contact pipe. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1 To adaptively adjust the clamping force on the camera according to the degree of vehicle vibration, please refer to... Figures 1-5 This embodiment proposes a vehicle-mounted monitoring device based on dual signals of Beidou satellite, including an outer frame 1. A U-shaped frame 2 is fixedly connected to the top inner side of the outer frame 1. A camera 3 is slidably connected between the two sides of the U-shaped frame 2. A vibration sensor 5 is fixedly connected to one side of the camera 3. A heat sink 6 is fixedly connected to the bottom of the outer frame 1. A tension adjustment component 7 is installed inside the outer frame 1. The tension adjustment component 7 includes an electric push rod 71, a horizontal plate 72, a spring 73, a push plate 74, and a push rod 75. The electric push rod 71 is fixed to the top inner side of the outer frame 1. The horizontal plate 72 is fixed to the movable end of the electric push rod 71. The push plate 74 is fixed to the bottom of the camera 3. The spring 73 is fixed between the horizontal plate 72 and the push plate 74. The push rod 75 is fixed to the bottom of the horizontal plate 72 and extends to the outside of the outer frame 1 and is fixed to the heat sink 6. After receiving the monitoring signal from the vibration sensor 5, the electric push rod 71 drives the horizontal plate 72 to rise to compress the spring 73. The spring 73 drives the push rod 75 to rise and tighten the heat sink 6.

[0022] When the vibration sensor 5 detects an acceleration greater than 0.5g, the electric push rod 71 drives the horizontal plate 72 to rise, using the elastic force of the spring 73 to press the camera 3, and also drives the top push rod 75 to rise. The top push rod 75 tightens the heat sink 6, strengthening the clamping force. When the vibration sensor detects an acceleration less than 0.5g, the electric push rod 71 drives the horizontal plate 72 to fall to its lowest position, reducing the pressure of the spring 73 on the camera 3. At the same time, the horizontal plate 72 drives the top push rod 75 to fall, so that the top push rod 75 no longer tightens the heat sink 6. Through dynamic clamping and adaptive adjustment, the clamping firmness of the camera 3 adapts to different vibration intensities, no longer relying on rigid reinforcement. The clamping force can be adjusted according to the intensity of the vibration. When the vibration sensor 5 detects severe vibration, the electric push rod 71 drives the horizontal plate 72 to increase the clamping force, pressing the camera 3 with the spring 73 to prevent displacement caused by vibration. When the vibration sensor 5 detects a small vibration amplitude, moderate clamping is maintained to avoid excessive pressure on the camera 3, causing component fatigue, and balancing vibration resistance and mechanical life.

[0023] To further improve the shock resistance of camera 3, refer to Figure 2 and Figure 5A vibration isolation plate 8 is fixedly connected between the U-shaped frame 2 and the outer frame 1. Buffer plates 9 are fixedly connected to both sides of the inner wall of the U-shaped frame 2. Multiple shock-absorbing feet 10 are fixedly connected to the top of the outer frame 1. The U-shaped frame 2 includes side plates 21, fastening plates 22 and bottom feet 23. The two side plates 21 are fixedly connected to each other by fastening plates 22. The camera 3 is set on the fastening plates 22. The bottom feet 23 are fixed to the vibration isolation plate 8 and the outer frame 1 by screws.

[0024] In use, the shock-absorbing feet 10, the vibration isolation plate 8, and the buffer plate 9 form a multi-level buffer to reduce the transmission of vehicle vibration to the camera 3. The spring 73 and the push plate 74 work together to absorb vibration energy through elastic deformation, avoiding lens displacement or bracket loosening caused by rigid impact. Through the synergistic effect of the multi-layer shock-absorbing structure, the impact of vibration on the sensor is reduced and the stability of the mechanical structure is improved.

[0025] Example 2 In order to flexibly adjust the heat dissipation capacity of camera 3 according to temperature changes, refer to Figures 1-5 Based on Embodiment 1, a temperature sensor 4 is fixedly connected to one side of the camera 3, a fan 11 is installed on one side of the outer frame 1, a filter frame 12 adapted to the fan 11 is provided on the inner wall of the outer frame 1, a shock-absorbing pad 13 is fixedly connected between the filter frame 12 and the outer frame 1, a filter box 14 is fixedly connected to the side of the filter frame 12 away from the fan 11, a receiving groove 15 is provided between the filter box 14 and the filter frame 12, the filter is installed in the receiving groove 15, an elastic band 16 is fixedly connected between the two sides of the filter frame 12, a vibrator 17 is fixedly connected in the middle of the elastic band 16, a pump body 18 is fixedly connected in the middle of the heat sink 6, the inlet and outlet of the pump body 18 are both connected to a water pipe 19 that passes through the heat sink 6, and a contact pipe 20 is fixedly connected to the bottom of the camera 3, the contact pipe 20 and the water pipe 19 are connected to form a circulation pipe.

[0026] During use, the pump body 18 operates at low power to dissipate heat from the camera 3. When the temperature sensor 4 detects a temperature greater than 50°C, the vibrator 17 starts, and the fan 11 reverses for 3 seconds to clean the filter dust. After that, the fan 11 rotates forward to dissipate heat. When the temperature sensor 4 detects a temperature higher than 70°C, and the vibration sensor 5 detects an acceleration greater than 1g, this indicates a bumpy road section where the camera 3 is under high-intensity operation. The electric push rod 71 increases the thrust and strengthens the fastening force, the fan 11 speeds up, and the pump body 18 increases the cooling efficiency to adapt to the camera's working environment. By utilizing multi-dimensional heat dissipation and temperature response, the performance drift of the camera 3 caused by excessive temperature can be suppressed. The contact pipe 20 works in conjunction with the heat sink 6 to use coolant circulation to remove heat from the camera 3. When the temperature rises, the fan 11 accelerates ventilation, and the pump body 18 improves heat dissipation efficiency to avoid parameter drift of electronic components caused by high temperature. The fan reverses and the vibration device cleans the filter to ensure unobstructed heat dissipation channels and maintain the stability of the heat dissipation effect.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted monitoring device based on dual-signal BeiDou satellites, comprising an outer frame (1), characterized in that, The outer frame (1) is fixedly connected to a U-shaped frame (2), the U-shaped frame (2) is slidably connected to a camera (3), the camera (3) is fixedly connected to a vibration sensor (5), the bottom of the outer frame (1) is fixedly connected to a heat sink (6), and the outer frame (1) is equipped with a tension adjustment component (7). The tension adjustment assembly (7) includes an electric push rod (71), a horizontal plate (72), a spring (73), a push plate (74), and a push rod (75). The electric push rod (71) is fixed to the top of the inner side of the outer frame (1), the horizontal plate (72) is fixed to the movable end of the electric push rod (71), the push plate (74) is fixed to the bottom of the camera (3), the spring (73) is fixed between the horizontal plate (72) and the push plate (74), and the push rod (75) is fixed to the bottom of the horizontal plate (72). The push rod (75) extends to the outside of the outer frame (1) and is fixed to the heat sink (6). After receiving the monitoring signal from the vibration sensor (5), the electric push rod (71) drives the horizontal plate (72) to rise to squeeze the spring (73). The spring (73) drives the push rod (75) to rise and tighten the heat sink (6).

2. The BeiDou satellite vehicle-mounted monitoring device based on dual signals according to claim 1, characterized in that, A vibration isolation plate (8) is fixedly connected between the U-shaped frame (2) and the outer frame (1). Buffer plates (9) are fixedly connected to both sides of the inner wall of the U-shaped frame (2). Multiple shock-absorbing legs (10) are fixedly connected to the top of the outer frame (1).

3. The BeiDou satellite vehicle-mounted monitoring device based on dual signals according to claim 2, characterized in that, The U-shaped frame (2) includes side plates (21), fastening plates (22) and bases (23). The two side plates (21) are fixedly connected by fastening plates (22). The camera (3) is set on the fastening plates (22). The bases (23) are fixed to the vibration isolation plate (8) and the outer frame (1) by screws.

4. The BeiDou satellite vehicle-mounted monitoring device based on dual signals according to claim 1, characterized in that, A temperature sensor (4) is fixedly connected to one side of the camera (3), and a fan (11) is installed on one side of the outer frame (1).

5. A vehicle-mounted monitoring device based on dual signals for BeiDou satellites according to claim 4, characterized in that, The inner wall of the outer frame (1) is provided with a filter frame (12) adapted to the fan (11), and a shock-absorbing pad (13) is fixedly connected between the filter frame (12) and the outer frame (1).

6. A vehicle-mounted monitoring device based on dual signals for BeiDou satellites according to claim 5, characterized in that, A filter box (14) is fixedly connected to the side of the filter frame (12) away from the fan (11). A receiving groove (15) is provided between the filter box (14) and the filter frame (12), and the filter is installed in the receiving groove (15).

7. A vehicle-mounted monitoring device based on dual signals of Beidou satellite according to claim 5, characterized in that, An elastic band (16) is fixedly connected between the two sides of the filter frame (12), and a vibrator (17) is fixedly connected in the middle of the elastic band (16).

8. A vehicle-mounted monitoring device based on dual signals of Beidou satellite according to claim 1, characterized in that, A pump body (18) is fixedly connected in the middle of the heat sink (6). The inlet and outlet of the pump body (18) are connected to water pipes (19) that pass through the heat sink (6). A contact pipe (20) is fixedly connected to the bottom of the camera (3). The contact pipe (20) is connected to the water pipe (19) to form a circulation pipe.

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