CN220651425U

CN220651425U - Traffic information acquisition equipment

Info

Publication number: CN220651425U
Application number: CN202322374728.8U
Authority: CN
Inventors: 蒋松涛; 陈志权; 王宁
Original assignee: Suzhou Keda Technology Co Ltd
Current assignee: Suzhou Keda Technology Co Ltd
Priority date: 2023-09-01
Filing date: 2023-09-01
Publication date: 2024-03-22
Anticipated expiration: 2033-09-01

Abstract

The application provides a traffic information acquisition device, the device includes: the device comprises a shell and a mounting bracket, wherein the shell is fixed with the mounting bracket; the camera assembly is at least partially arranged in the shell and comprises a camera sensor unit, a camera main board, a camera support, a first motor and a second motor, wherein the first side of the camera sensor unit faces the working surface of the shell, the second side of the camera sensor unit is fixed with the camera main board, the camera sensor unit is arranged on the camera support, the first motor is used for driving the camera sensor unit to move along a first direction relative to the shell, and the second motor is used for driving the camera sensor unit to move along a second direction relative to the shell; and a radar assembly at least partially disposed within the housing, the detection surface of the radar assembly being disposed toward the working surface of the housing. The camera of this application can adjust the visual field in a flexible way, need not to install equipment on the road, improves stability and reliability in the equipment use.

Description

Traffic information acquisition equipment

Technical Field

The application relates to the technical field of traffic monitoring, in particular to traffic information acquisition equipment.

Background

Cameras and radars are currently common traffic information gathering devices. The camera has the characteristics of rich target information acquisition and high near-distance effectiveness and reliability, but the camera also has the problems of limited remote detection capability and susceptibility to bad weather. The radar has the advantages of long detection distance and no influence of bad weather, but also has the problems of low target resolution capability and difficult detection of stationary targets. Therefore, in recent years, a number of sensing devices have emerged that combine both with the intention of achieving complementary advantages through the combination of both.

However, in practical design, the radar and the camera usually adopt a mode of fixing the mutual viewing angle so as to achieve calibration of the relative relation between the radar and the camera, but the effective installation position is severely limited, and the radar and the camera generally have to be installed in the center of a lane, so that transverse cantilever arms are required to be installed in engineering, and separate upright posts are required to be adopted, so that the engineering cost is high.

As shown in fig. 1, in the conventional scheme, for a device J2 in which the camera field of view and the radar field of view are fixed, the device J2 must be installed to the center point of the lane J1 perpendicular to the direction of the lane J1 so that the radar field of view J4 and the camera field of view J3 cover most of the road. If such a device J2 is forced to be installed on the road side, a situation as in fig. 2 occurs: the near half field of view J3 of the camera covers the road side and perception independent area, whereas the lanes of lane J1 that are farther from the device J2 cannot. At the same time, the device is very sensitive to the change of the installation angle, and particularly for a long-distance coverage sensor such as a radar, the detection data of the long-distance target position deviate from an actual lane due to the small deviation of the whole. After the equipment is installed on a road, the equipment is influenced by severe weather such as equipment looseness, typhoons and the like, roadbed vibration, accidents and the like, and position deviation often occurs. The large number of sensors deployed in engineering has little or no effort to focus on the angular deviation of the position of the device, so that the usability of the device is greatly reduced after long-term operation.

Disclosure of Invention

Aiming at the problems in the prior art, the purpose of the application is to provide traffic information acquisition equipment, a camera can flexibly adjust the view field, the equipment is not required to be installed on a road, and the stability and the reliability of the equipment in use are improved.

The embodiment of the application provides a traffic information acquisition device, which comprises:

the device comprises a shell and a mounting bracket, wherein the shell is fixed with the mounting bracket;

the camera assembly is at least partially arranged in the shell, the camera assembly comprises a camera sensor unit, a camera main board, a camera support, a first motor and a second motor, the first side of the camera sensor unit is arranged towards the working surface of the shell, the second side of the camera sensor unit is fixed with the camera main board, the camera sensor unit is arranged on the camera support, the first motor is used for driving the camera sensor unit to move along a first direction relative to the shell, and the second motor is used for driving the camera sensor unit to move along a second direction relative to the shell; and

and the radar component is at least partially arranged in the shell, and the detection surface of the radar component is arranged towards the working surface of the shell.

In some embodiments, the camera assembly further comprises a first bearing and a second bearing, the second motor being connected to the camera support through the second bearing, the camera sensor unit being fixed to the second motor;

the camera assembly further comprises a first gear and a second gear which are meshed, an output shaft of the first motor is connected with the first gear, and the second gear is connected with the camera support through the first bearing.

In some embodiments, the camera support is an annular support or an inverted U-shaped support, the second gear and the first bearing are disposed on top of the camera support, and the second motor and the second bearing are disposed inside or outside of a side of the camera support.

In some embodiments, the camera assembly further comprises a first gear and a second gear meshed with each other, the output shaft of the first motor is connected to the first gear, and the second gear is connected to the camera support through the first bearing.

In some embodiments, the radar assembly includes a radar and a radar adapter plate, a first side of the radar being a detection surface, a second side of the radar being mounted to the radar adapter plate.

In some embodiments, the radar includes a radar circuit board, a first fixture, and a protective panel surrounding the radar circuit board, the radar circuit board being secured to the radar adapter plate by the first fixture.

In some embodiments, the radar adapter further comprises a power supply main board, wherein the power supply main board is arranged on one side, away from the radar, of the radar adapter, and the radar is electrically connected to the power supply main board through the radar adapter.

In some embodiments, the waterproof connector is arranged in the shell in a penetrating mode, the cable is arranged in the waterproof connector in a penetrating mode, and one end of the cable is electrically connected to the power supply main board.

In some embodiments, the camera assembly and/or the radar assembly further comprise a gesture sensor and a control unit, the gesture sensor being provided at the camera assembly and/or the radar assembly, the gesture sensor being electrically connected to the control unit.

In some embodiments, the camera module further comprises a light supplementing lamp assembly, wherein the light emitting surface of the light supplementing lamp assembly is arranged towards the working surface of the shell, and the working surface of the shell is respectively provided with openings corresponding to the camera module, the light supplementing lamp assembly and the radar module.

In some embodiments, the light supplementing lamp assembly comprises an LED light emitting panel, an LED light bead, a heat dissipating panel and a glass panel, wherein the LED light bead is arranged between the LED light emitting panel and the glass panel, the light emitting surface of the LED light bead faces the glass panel, and the heat dissipating panel is arranged on one side of the LED light emitting panel away from the glass panel.

The traffic information acquisition equipment provided by the application has the following advantages:

the utility model provides a traffic information acquisition equipment that has integrated camera subassembly and radar subassembly, but the advantage that camera subassembly collection information is abundant and radar subassembly long-distance detection ability is strong simultaneously fuses to can drive camera sensor unit through first motor and second motor and follow two different directions and move, make the camera can adjust the visual field in a flexible way, need not to install equipment on the road, solve the problem that field device mounted position requires strictly, can realize the perfect match of visual field and road state through adjusting the camera visual field, stability and reliability in the equipment use have been improved, and actual engineering cost is significantly reduced.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings.

FIG. 1 is a schematic view of a prior art camera and radar mounted in the center of a roadway;

FIG. 2 is a schematic view of a prior art camera and radar mounted on a roadside;

fig. 3 is a schematic structural view of a traffic information collecting apparatus according to an embodiment of the present application;

fig. 4 is an exploded view of a traffic information collecting apparatus according to an embodiment of the present application;

FIG. 5 is a schematic structural view of a camera assembly according to an embodiment of the present application;

fig. 6 is an exploded view of the traffic information collecting device omitting the first housing according to an embodiment of the present application;

FIG. 7 is a schematic structural view of a camera assembly according to another embodiment of the present application;

FIG. 8 is a schematic diagram of the structure of a radar assembly according to an embodiment of the present application;

fig. 9 and 10 are schematic structural diagrams of a light supplement lamp assembly according to an embodiment of the present application.

11. First housing 32 light-emitting panel

12. Second shell 33 heat radiation panel

13. Waterproof joint 34 LED lamp bead

2. Second fixing piece of camera assembly 35

21. Camera sensor unit 4 radar assembly

22. Camera support 41 radar

23. Ball cover 411 radar circuit board

24. First motor 412 first fixing member

25. Protection panel for camera motherboard 413

26. Second motor 42 radar adapter plate

27. First bearing 5 mounting bracket

28. First gear 6 posture sensor

29. Second gear 7 work indicator lamp

210. Second bearing 81 control unit

3. Light filling lamp subassembly 82 power mainboard

31. Glass panel

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus a repetitive description thereof will be omitted. "or", "or" in the specification may each mean "and" or ". Although the terms "upper", "lower", "between", etc. may be used in this specification to describe various example features and elements of the present application, these terms are used herein for convenience only, e.g., in terms of the orientation of the examples depicted in the drawings. Nothing in this specification should be construed as requiring a particular three-dimensional orientation of the structure to fall within the scope of this application. Although the terms "first" or "second" etc. may be used herein to describe certain features, these features should be interpreted in a descriptive sense only and not for purposes of limitation as to the number and importance of the particular features.

As shown in fig. 3 to 6, an embodiment of the present application provides a traffic information collecting apparatus including a housing, a mounting bracket 5, and a radar assembly 4. The housing includes a first housing 11 and a second housing 12. The working surface of the housing refers to the surface that in use faces the acquisition area, in this embodiment the front surface of the first housing 11. The front surface of the first housing 11 is provided with openings corresponding to the camera assembly 2 and the radar assembly 4, the openings corresponding to the camera assembly 2 can be provided with visible light transparent materials, the openings corresponding to the radar assembly 4 are provided with wave-transmitting materials, and the selection and thickness of the wave-transmitting materials are related to the wavelength of the radar 41. The second housing 12 is fixed to the mounting bracket 5 to mount the apparatus on a mounting bar on a road side. The mounting bar may be, for example, a street light bar. The surface of the second housing 12 is provided with a plurality of heat dissipation holes, so that the heat dissipation performance of the whole device can be improved. The camera assembly 2 is at least partially disposed within the housing. The camera assembly 2 comprises a ball cover 23, a camera sensor unit 21, a camera main board 25, a camera bracket 22, a first motor 24 and a second motor 26, wherein a first side of the camera sensor unit 21 is arranged towards the front surface of the first shell 11, the ball cover 23 is covered on the first side of the camera sensor unit 21, and the ball cover 23 is at least partially exposed at a corresponding opening position of the front surface of the first shell 11. The second side of the camera sensor unit 21 is fixed to the camera main board 25, and the camera main board 25 receives the data collected by the camera sensor unit 21. The camera sensor unit 21 includes an optical component for zooming and focusing, and an image sensor for collecting traffic video information and transmitting the traffic video information to the control unit 81 through the camera main board 25. The camera support 22 is rotatably fixed to the inside of the housing, for example, the bottom of the camera support 22 may be connected to the housing by a rotatable connection plate.

The camera sensor unit 21 is mounted to the camera support 22, the first motor 24 is configured to drive the camera sensor unit 21 to move in a first direction relative to the housing, and the second motor 26 is configured to drive the camera sensor unit 21 to move in a second direction relative to the housing. The radar assembly 4 is at least partially disposed inside the housing, and the detection surface of the radar assembly 4 is disposed towards the front surface of the first housing 11 and is at least partially exposed at the corresponding opening position of the front surface of the first housing 11.

Therefore, the application provides traffic information acquisition equipment integrating the camera component 2 and the radar component 4, the advantages that the camera component 2 is rich in acquisition information and the radar component 4 is high in remote detection capability can be simultaneously fused, the camera sensor unit 21 can be driven to move along two different directions through the first motor 24 and the second motor 26, the field of view can be flexibly adjusted, the equipment is not required to be installed on a road, the problem that the installation position requirements of field equipment are strict is solved, the field of view can be perfectly matched with the road state through adjusting the field of view of the camera, the stability and the reliability in the use of the equipment are improved, and the actual engineering cost is greatly reduced.

The shape of the camera support 22 may be selected as desired, for example, as an inverted U-shaped support as shown in fig. 4 and 5 or as a ring support as shown in another embodiment in fig. 6 and 7. The embodiment shown in fig. 4 and 5 is basically the same principle as the embodiment shown in fig. 6 and 7. As seen in connection with fig. 4-7, the camera assembly 2 further comprises a first bearing 27 and a second bearing 210, the first motor 24 is connected to the camera support 22 via the first bearing 27, the second motor 26 is connected to the camera support 22 via the second bearing 210, and the camera sensor unit 21 is fixed to the second motor 26. In the embodiment shown in fig. 4-7, the first motor 24 is a horizontal motor and the second motor 26 is a vertical motor. The first motor 24 is connected to the top of the camera support 22 through a first bearing 27, the second motor 26 is connected to the side of the camera support 22 (herein, the side refers to the portion of the camera support 22 other than the top and bottom) through a second bearing 210, and the second motor 26 may be provided inside or outside the side of the camera support 22.

As seen in fig. 4 to 7, the camera assembly 2 further includes a first gear 28 and a second gear 29 meshed with each other, the output shaft of the first motor 24 is connected to the first gear 28, the second gear 29 is connected to the camera support 22 through the first bearing 27, the first gear 28 is a pinion, the second gear 29 is a large gear, since the diameter of the first gear 28 is smaller than that of the second gear 29, the two gears are meshed with each other, the rotation speed of the second gear 29 is smaller than that of the first gear 28, and the two gears form a speed reducing mechanism, so that the function of reducing the high rotation speed of the first electrode 24 and increasing the output torque can be achieved. Therefore, when the camera sensor unit 21 needs to be adjusted to move along the first direction, the first motor 24 is started, the first motor 24 drives the camera support 22 to rotate sequentially through the first gear 28, the second gear 29 and the first bearing 27, and the camera support 22 drives the main body structure formed by the second motor 26, the camera sensor unit 21 and the camera main board 25 to rotate in the horizontal direction (move left and right) at the same time, so that the horizontal position adjustment of the camera sensor unit 21 is realized. When the camera sensor unit 21 needs to be adjusted to move along the second direction, the second motor 26 is started, and the second motor 26 drives the camera sensor unit 21 to move up and down, so that the vertical position adjustment of the camera sensor unit 21 is realized.

As shown in fig. 6 and 8, the radar assembly 4 includes a radar 41 and a radar adapter plate 42, a first side of the radar 41 is a detection surface, a second side of the radar 41 is mounted on the radar adapter plate 42, and the radar adapter plate 42 may mount the radar 41 on an inner wall of the housing. Specifically, the radar 41 includes a radar circuit board 411, a first fixing member 412, and a protection panel 413 surrounding the radar circuit board 411, wherein the radar circuit board 411 is fixed to the radar adapter board 42 by the first fixing member 412, and the first fixing member 412 is, for example, a nut, a screw, a rivet, or the like. The radar circuit board 411 has mounted thereon a radar 41 sensor, for example, a millimeter wave radar 41, but the present application is not limited thereto.

As shown in fig. 6, the apparatus further includes a power motherboard 82 and a control unit 81, where the power motherboard 82 and the control unit 81 are disposed on a side of the radar adapter board 42 facing away from the radar 41, and the radar 41 is electrically connected to the power motherboard 82 and the control unit 81 through the radar adapter board 42. The radar adapter board 42 may implement interface conversion between a power input port, a serial port and a network port of the radar circuit board 411, for adapting the power motherboard 82 and the control unit 81.

As shown in fig. 4, the apparatus further includes a light supplementing lamp 3 assembly, and a light emitting surface of the light supplementing lamp 3 assembly is disposed toward a front surface of the first housing 11. As shown in fig. 9 and 10, the light supplementing lamp 3 assembly includes an LED light emitting panel 32, an LED light bead 34, a heat dissipating panel 33 and a glass panel 31, the heat dissipating panel 33, the glass panel 31 and the LED light emitting panel 32 may be assembled and fixed by a second fixing member 35, the second fixing member 35 is, for example, a nut, a screw, a rivet, etc., the LED light bead 34 is disposed between the LED light emitting panel 32 and the glass panel 31, and a light emitting surface of the LED light bead 34 is disposed toward the glass panel 31, and the heat dissipating panel 33 is disposed on a side of the LED light emitting panel 32 facing away from the glass panel 31.

As shown in fig. 3, 4 and 6, the apparatus further includes a waterproof connector 13 and a cable, the waterproof connector 13 is disposed at the bottom of the first housing 11 in a penetrating manner, the cable is disposed in the waterproof connector 13 in a penetrating manner, one end of the cable is electrically connected to the power main board 82, and the other end of the cable is connectable to a power supply of a commercial power or a traffic light to supply power to the entire apparatus. By arranging the waterproof joint 13, the waterproof capacity of the equipment can be improved, and the equipment is suitable for various weather conditions. The power supply main board 82 is further connected to the camera main board 25, the first motor 24, the second motor 26, the LED light emitting panel 32 of the light compensating lamp 3 assembly, and the control unit 81 of the camera assembly 2, the light compensating lamp 3 assembly, and the control unit 81 to supply power. The control unit 81 may be connected to the camera main board 25 and the radar circuit board 411, and acquire the acquired data of the camera module 2 and the radar module 4. The control unit 81 may also be connected to the first motor 24 and the second motor 26 to control the actuation of the first motor 24 and the second motor 26 to adjust the field of view of the camera. The control unit 81 may also be connected to a work light 7, which work light 7 indicates the current working state of the device, e.g. a green light indicates a normal movement of the device and a red light indicates a malfunction of the device.

As shown in fig. 4, in this embodiment, the apparatus further includes a gesture sensor 6, where the gesture sensor 6 may be one, provided at the radar assembly 4 (identified in fig. 3) or the camera assembly 2, and may sense gesture data of the radar assembly 4 or gesture data of the camera assembly 2, or two, provided at the radar assembly 4 and the camera assembly 2, and respectively sense gesture data of the radar assembly 4 and the camera assembly 2, and the gesture sensor 6 is electrically connected to the control unit 81 (shown in fig. 6) to send the gesture data of the radar assembly 4 and/or the camera assembly 2 to the control unit 81. By collecting the posture data by the posture sensor 6, abnormal direction change and vibration can be automatically detected. The control unit 81 may further include a communication module, which communicates with the terminal of the staff, and prompts the operation and maintenance staff to perform corresponding processing, so that the workload and technical difficulty of operation and maintenance are greatly reduced. The attitude sensor 6 unit may include a geomagnetic declination measurement module, a gravitational acceleration measurement module, and a motion acceleration measurement module, collecting attitude data of the camera assembly 2 and/or the radar assembly 4 from multiple dimensions.

The traffic information acquisition equipment of this application is when installing in the roadside, available current street lamp member or other roadside installation member/support to the installation stability is high, and can realize the comprehensive collection to road traffic information through adjusting the camera visual field. The camera assembly can realize the target detection azimuth of about 80 meters in the longitudinal direction, and can be combined with the control unit to identify the target attribute information such as the vehicle number plate, the vehicle type and the like in a certain distance. The radar can cover a plurality of lanes (such as more than 6 lanes), the longitudinal distance can cover more than 200 meters, and different types of radars with different detection distances can be configured according to the requirements. However, the traffic information collecting device may be installed in a road center according to different scene requirements, which is not limited in the present application.

The foregoing is a further detailed description of the present application in connection with the specific preferred embodiments, and it is not intended that the practice of the present application be limited to such description. It should be understood that those skilled in the art to which the present application pertains may make several simple deductions or substitutions without departing from the spirit of the present application, and all such deductions or substitutions should be considered to be within the scope of the present application.

Claims

1. A traffic information acquisition device, characterized by comprising:

2. The traffic information acquisition device according to claim 1, wherein the camera assembly further comprises a first bearing and a second bearing, the second motor being connected to the camera bracket through the second bearing, the camera sensor unit being fixed to the second motor;

3. The traffic information collecting device according to claim 2, wherein the camera support is an annular support or an inverted U-shaped support, the second gear and the first bearing are provided at a top of the camera support, and the second motor and the second bearing are provided inside or outside a side of the camera support.

4. The traffic information acquisition device of claim 1, wherein the radar assembly comprises a radar and a radar adapter plate, a first side of the radar being a detection surface, a second side of the radar being mounted to the radar adapter plate.

5. The traffic information acquisition device according to claim 4, wherein the radar includes a radar circuit board, a first fixing member, and a protection panel surrounding the radar circuit board, the radar circuit board being fixed to the radar adapter plate by the first fixing member.

6. The traffic information collecting device according to claim 5, further comprising a power supply main board, wherein the power supply main board is disposed on a side of the radar adapter board facing away from the radar, and the radar is electrically connected to the power supply main board through the radar adapter board.

7. The traffic information collecting device according to claim 6, further comprising a waterproof joint and a cable, wherein the waterproof joint is penetrated in the housing, the cable is penetrated in the waterproof joint, and one end of the cable is electrically connected to the power main board.

8. The traffic information acquisition device according to claim 1, further comprising a gesture sensor and a control unit, the gesture sensor being provided at the camera assembly and/or the radar assembly, the gesture sensor being electrically connected to the control unit.

9. The traffic information collecting device according to claim 1, further comprising a light supplementing lamp assembly, a light emitting surface of the light supplementing lamp assembly being disposed toward a working surface of the housing, the working surface of the housing being provided with openings corresponding to the camera assembly, the light supplementing lamp assembly and the radar assembly, respectively.

10. The traffic information collecting device according to claim 9, wherein the light supplementing lamp assembly comprises an LED light emitting panel, an LED light bead, a heat dissipating panel and a glass panel, the LED light bead is arranged between the LED light emitting panel and the glass panel, a light emitting surface of the LED light bead is arranged towards the glass panel, and the heat dissipating panel is arranged on one side of the LED light emitting panel away from the glass panel.