Calibration device for fixed type black smoke vehicle electronic snapshot system

Abstract

The utility model discloses a calibration device for an electronic snapshot system of a fixed black smoke vehicle, which comprises a movable vehicle body, a turntable is rotatably arranged on the vehicle body, a supporting plate is arranged on the turntable, a locking handle is in threaded connection with the supporting plate, the front end of the supporting plate is hinged with a fixed plate, and the rear end of the supporting plate is hinged with a movable plate. The fixing plate is provided with a quick clamp used for fixing the blackness plate, an electric push rod is hinged to the rear end of the supporting plate, the end, away from the supporting plate, of the electric push rod is hinged to the fixing plate, a positioning rod used for supporting the fixing plate is arranged at the rear end of the supporting plate, and the rotating disc is arranged close to the rear end of the supporting plate. Compared with the prior art, dynamic and static calibration of a calibrated object is realized through the rotating turntable, the electric push rod and the moving vehicle body. The overall structure is simple, the adjusting speed is high, and the calibration efficiency is high; and secondly, the framework design is optimized, the rationality and the practical operability of the device are improved, and the weight and the cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of calibration of electronic capture systems for black smoke vehicles, in particular to a calibration device for electronic capture systems of fixed black smoke vehicles. Background Art

[0002] At present, due to the rapid development of the motor vehicle industry, the number of motor vehicles in my country continues to grow, and the problem of motor vehicle emission pollution has become increasingly prominent and has become one of the main sources of air pollution. Among them, black smoke vehicles are typical representatives of high-pollution vehicles, so the prevention and control of black smoke vehicle pollution is imminent. Now, the black smoke vehicle electronic capture system based on image processing technology is used for prevention and control. However, the black smoke vehicle electronic capture system needs to be calibrated to meet the use requirements. The calibration device of the black smoke vehicle electronic capture system currently used includes a bracket and 10 standard blackness plates with different blackness levels. The bracket is placed in the middle of the motor vehicle road, and the blackness plate is installed on the bracket. Then, by adjusting the angle of the blackness plate on the bracket and moving the bracket, the blackness plate is perpendicular to the optical axis of the black smoke vehicle electronic capture system camera. This adjustment method is slow and has low calibration efficiency. Utility Model Content

[0003] The utility model provides a calibration device for an electronic capture system of a fixed black smoke vehicle, which is used to solve the problems of slow adjustment speed and low calibration efficiency in the existing calibration device.

[0004] The utility model provides a calibration device for an electronic capture system of a fixed black smoke vehicle, comprising a movable vehicle body, a turntable rotatably arranged on the vehicle body, a support plate arranged on the turntable, a locking handle threadedly connected to the support plate, a front end of the support plate hinged to a fixed plate, a quick clamp for fixing a blackness plate arranged on the fixed plate, an electric push rod hinged to the rear end of the support plate, an end of the electric push rod away from the support plate is hinged to the fixed plate, a positioning rod for supporting the fixed plate is arranged at the rear end of the support plate, and the turntable is arranged close to the rear end of the support plate.

[0005] Preferably, the vehicle body comprises two upper and lower base plates, a driving mechanism for driving the wheels to rotate and a steering mechanism for driving the wheels to turn are provided between the two base plates, and a lithium battery is also provided between the two base plates.

[0006] Preferably, an L-shaped plate is fixed to the rear end of the support plate, the horizontal position of the L-shaped plate is lower than the horizontal position of the support plate, and the electric push rod is hinged on the L-shaped plate.

[0007] Preferably, it also includes a first hinge support, the first hinge support is fixed to the L-shaped plate by bolts, and the first hinge support is hinged to the electric push rod.

[0008] Preferably, a reinforcing plate is fixed on the L-shaped plate, the first hinge support is arranged between the two reinforcing plates, and the reinforcing plate is arranged between the two positioning rods.

[0009] Preferably, a rubber sleeve is fixed to the upper end of the positioning rod.

[0010] Preferably, it also includes a second hinge support and a third hinge support, wherein the second hinge support and the third hinge support are respectively fixed to the support plate and the fixed plate, and the second hinge support and the third hinge support are hinged.

[0011] Preferably, the fixing plate includes a panel and a support frame fixed to the panel, the support frame is fixed to a third hinge support, and the support frame is hinged to the electric push rod via a fourth hinge support.

[0012] Preferably, a control box is provided between the two base plates, the control box is provided with a plurality of buttons and also includes a remote controller, the remote controller is connected to a control system in the control box, the control system is used to control wheel rotation and steering, and the control system is also used to control the extension and retraction of the electric push rod.

[0013] Preferably, it also includes a light meter and a laser rangefinder, wherein the light meter is used to measure the light intensity, and the laser rangefinder is used to measure the horizontal distance between the blackness plate and the electronic capture system of the black smoke vehicle.

[0014] Compared with the prior art, the utility model realizes dynamic and static calibration of the object to be calibrated through a rotating turntable, an electric push rod and a moving vehicle body. The overall structure is simple, the adjustment speed is fast, and the calibration efficiency is high; secondly, the frame design is optimized, the rationality and operability of the device are improved, and the weight and cost are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a structural schematic diagram of the support plate of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the fixing plate of the utility model;

[0019] Figure 4 This is the scene diagram during calibration of the utility model;

[0020] Figure 5 The object of the utility model Figure 1 ;

[0021] Figure 6 The object of the utility model Figure 2 .

[0022] Reference numerals:

[0023] 1. Car body, 2. Turntable, 3. Support plate, 4. Fixed plate, 5. Electric push rod, 6. Blackness plate, 7. Positioning rod, 8. L-shaped plate, 9. First hinge support, 10. Reinforcement plate, 11. Rubber sleeve, 12. Second hinge support, 13. Third hinge support, 14. Fourth hinge support, 15. Camera, 16. Locking handle, 011. Bottom plate, 012. Control box, 013. Button, 014. Wheel, 041. Panel, 042. Support frame. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] See attached Figure 1The present embodiment provides a calibration device for the electronic capture system of a fixed black smoke vehicle, comprising a movable vehicle body 1, a turntable 2 is rotatably provided on the vehicle body 1, a support plate 3 is fixed on the turntable 2, and a locking handle 16 is threadedly connected to the support plate 3; the front end of the support plate 3 is hinged with the fixed plate 4, and a quick clamp for fixing the blackness plate 6 is provided on the fixed plate 4, and the quick clamp is provided to facilitate the replacement of blackness plates 6 of different levels. The rear end of the support plate 3 is hinged with an electric push rod 5, and the end of the electric push rod 5 away from the support plate 3 is hinged with the fixed plate 4. In the pitch direction, the blackness plate 6 is driven to swing within the range of 0°-60° by the electric push rod 5; in the horizontal direction, the blackness plate 6 can be manually driven to rotate 180° through the turntable 2. When the blackness plate 6 rotates to a suitable angle, the locking handle 16 passes through the turntable 2 and abuts against the vehicle body 1, thereby locking the support plate 3 on the vehicle body 1 so that it cannot rotate. The rear end of the support plate 3 is provided with a positioning rod 7 for supporting the fixed plate 4, and the turntable 2 is arranged near the rear end of the support plate 3. After the fixed plate 4 is parked on the positioning rod 7, a space for accommodating the electric push rod 5 is formed between the fixed plate 4 and the support plate 3. The utility model realizes the horizontal angle adjustment of the blackness plate 6 through the turntable 2 and the automatic adjustment of the pitch angle through the electric push rod 5, with fast adjustment speed and high calibration efficiency; secondly, the overall structure is relatively simple, which is conducive to reducing weight and manufacturing cost.

[0026] Specifically, a stopper is fixed on the fixed plate 4, the lower side of the blackness plate 6 is placed on the stopper, and then the blackness plate 6 is clamped on the fixed plate 4 by a quick clamp, wherein the stopper plays a role of supporting the blackness plate 6. Through this structural design, blackness plates 6 of different levels can be quickly replaced, thereby improving calibration efficiency.

[0027] An embodiment in which the vehicle body 1 can move: the vehicle body 1 includes two upper and lower bottom plates 011, a driving mechanism for driving the wheels 014 to rotate and a steering mechanism for driving the wheels 014 to turn are arranged between the two bottom plates 011, the wheels 014 are rotatably arranged on both sides of the vehicle body 1, and a lithium battery is also arranged between the two bottom plates 011. Specifically, the driving mode is four-wheel drive, front wheel steering is adopted, and an independent steering motor is equipped. The steering mechanism adopts an Ackerman structure, which makes the steering more stable and can simplify the driving program of the steering motor. The lithium battery provides power for the electric push rod 5, the driving mechanism and the steering mechanism. The utility model adopts two bottom plates 011 to provide installation space, which is conducive to weight reduction and cost reduction.

[0028] An installation method of electric push rod 5: refer to the attached Figure 2 The rear end of the support plate 3 is fixed with an L-shaped plate 8, the horizontal position of the L-shaped plate 8 is lower than the horizontal position of the support plate 3, and the electric push rod 5 is hinged on the L-shaped plate 8. The L-shaped plate 8 is provided to provide space for the installation of the electric push rod 5.

[0029] As another embodiment of the utility model: this embodiment further includes a first hinge support 9, the first hinge support 9 is fixed to the L-shaped plate 8 by bolts, and the first hinge support 9 is hinged to the electric push rod 5. This structure facilitates the installation of the electric push rod 5 on the L-shaped plate 8.

[0030] As another embodiment of the present invention: a reinforcing plate 10 is fixed on the L-shaped plate 8, the first hinge support 9 is arranged between two reinforcing plates 10, and the reinforcing plate 10 is arranged between two positioning rods 7. This arrangement is conducive to improving the structural strength of the L-shaped plate 8.

[0031] As another embodiment of the present invention: a rubber sleeve 11 is fixed to the upper end of the positioning rod 7. Through this arrangement, when the fixing plate 4 falls on the positioning rod 7, the rubber sleeve 11 can play a buffering role.

[0032] As another embodiment of the utility model: this embodiment further includes a second hinge support 12 and a third hinge support 13, which are respectively fixed to the support plate 3 and the fixing plate 4, and are hinged to the second hinge support 12 and the third hinge support 13. The second hinge support 12 and the third hinge support 13 at the front end of the support plate 3 can provide installation space for the electric push rod 5.

[0033] An implementation method of the fixing plate 4: Figure 3 The fixing plate 4 includes a panel 041 and a support frame 042 fixed to the panel 041, the support frame 042 is fixed to the third hinge support 13, the support frame 042 is hinged to the electric push rod 5 through the fourth hinge support 14, and the quick clamp is fixed to the panel 041. This arrangement can effectively reduce the weight of the fixing plate 4, which is conducive to reducing the manufacturing cost of the fixing plate 4.

[0034] As another embodiment of the present invention: the support plate 3 is a T-shaped structure. This arrangement can effectively reduce the amount of profiles used and reduce the manufacturing cost.

[0035] Specifically, an avoidance hole is provided on the L-shaped plate 8 , the avoidance hole passes through the support plate 3 , and a part of the electric push rod 5 is disposed in the avoidance hole.

[0036] As another embodiment of the present invention: a weight-reducing hole is provided on the upper bottom plate 011. Specifically, the weight-reducing hole is a V-shaped hole. This setting can effectively reduce the amount of profiles used and reduce the production cost.

[0037] As another implementation mode of the present invention: the edges of the four sides of the upper bottom plate 011 are all covered with edge guards, which can play a buffering role in the event of a collision.

[0038] An installation method of the edge guard: a fixing hole is provided on the upper bottom plate 011, and a cable tie for binding the edge guard is provided in the fixing hole.

[0039] As another embodiment of the present invention: the bottom plate 011, the support plate 3 and the fixing plate 4 are all made of aluminum alloy. This arrangement can effectively reduce the weight of the calibration device.

[0040] As another embodiment of the present utility model: a control box 012 is provided between the two bottom plates 011 , and the control box 012 is provided with a plurality of buttons 013 . The buttons 013 on the control box 012 are used to control the movement of the vehicle and the angle of the blackness plate 6 .

[0041] As another embodiment of the utility model: this embodiment also includes a remote controller, which is connected to the control system in the control box 012, and the control system is used to control the rotation and steering of the wheel 014, and the control system is also used to control the extension and retraction of the electric push rod 5. The remote controller is used to remotely control the movement of the vehicle and the angle of the black plate 6. Specifically, the remote control signal of the remote controller adopts 2.4G high frequency, and the signal coverage range is 200 meters.

[0042] Specifically, this embodiment is configured with 10 standard blackness plates 6, and the blackness levels are: 0.00, 0.75, 1.00, 1.25, 1.50, 1.75, 2.00, 3.00, 4.00, and 5.00 (corresponding to area ratios of 0%, 15%, 20%, 25%, 30%, 35%, 40%, 60%, 80%, and 100%); after metrological traceability, the expanded uncertainty meets the requirements of U=1.6%, k=2.

[0043] As another implementation mode of the utility model: this embodiment also includes a light meter and a laser rangefinder, the light meter is used to measure the light intensity, and the laser rangefinder is used to measure the horizontal distance between the blackness plate 6 and the electronic capture system of the black smoke vehicle.

[0044] Specifically, the electronic capture system of the smoky vehicle is provided with a camera 15, and a mounting plate for fixing the license plate is provided at the end of the vehicle body 1.

[0045] The utility model also provides a workflow of a calibration device for a fixed black smoke vehicle electronic capture system:

[0046] 1. Daytime static calibration indication error

[0047] The ambient light intensity is measured by a light meter. When the light intensity value is within the range of (1000~80000)lx, static calibration is carried out during the day.

[0048] Step 1: Clamp the blackness plate 6 onto the fixing plate 4 by means of a quick clamp, and then control the vehicle body 1 to move to the electronic capture system of the black smoke vehicle that needs to be calibrated by means of a remote controller. Figure 4, use a laser rangefinder to measure the horizontal distance L between the blackness plate 6 and the camera 15 (the distance between the vehicle body 1 and the camera 15 after projection on the road surface), and stop when the vehicle body 1 moves within 20m-25m of the black smoke vehicle electronic capture system.

[0049] Step 2: Rotate the turntable 2 to adjust the horizontal angle of the blackness plate 6, so that the blackness plate 6 faces the optical axis of the camera 15, and start the electric push rod 5 to drive the blackness plate 6 to swing up and down, so that the blackness plate 6 is perpendicular to the optical axis of the camera 15. Place the light meter probe at the center of the upper edge of the standard blackness plate 6, facing the camera 15, with the angle consistent with the angle of the standard blackness plate 6, and measure the light value and record it.

[0050] Step 3: The electronic capture system of the smoky vehicle captures the blackness plate 6 to obtain measurement data, and then obtains the blackness level indication error of the electronic capture system of the smoky vehicle based on the measurement data.

[0051] Step 4: Loosen the quick clamp to remove the current blackness plate 6, then replace it with a blackness plate 6 of another level and test it to obtain the blackness level indication error of the black smoke vehicle electronic capture system. After all blackness plates 6 are replaced, go to step 5.

[0052] Step 5: Take the maximum absolute value of the black level indication error of the black smoke vehicle electronic capture system as the indication error.

[0053] 2. Daytime dynamic calibration indication error

[0054] The ambient light intensity is measured by a light meter. When the light intensity value is within the range of (1000~80000)lx, dynamic calibration is carried out during the day.

[0055] Step 1: Clamp the blackness plate 6 onto the fixed plate 4 by means of a quick clamp, and then control the vehicle body 1 to move to the electronic capture system of the black smoke vehicle that needs to be calibrated by means of a remote controller. Specifically, the horizontal distance L between the blackness plate 6 and the camera 15 is measured by means of a laser rangefinder, and the vehicle body 1 stops when it moves to 20m from the electronic capture system of the black smoke vehicle.

[0056] Step 2: Rotate the turntable 2 to adjust the horizontal angle of the blackness plate 6, so that the blackness plate 6 faces the optical axis of the camera 15, and start the electric push rod 5 to drive the blackness plate 6 to swing up and down, so that the blackness plate 6 is perpendicular to the optical axis of the camera 15. Place the light meter probe at the center of the upper edge of the standard blackness plate 6, facing the camera 15, with the angle consistent with the angle of the standard blackness plate 6, and measure the light value and record it.

[0057] Step 3: The vehicle 1 travels along the road at a speed of 3 km / h from a distance of 15 to 20 m from the camera to a distance of 25 m.

[0058] Step 4: During driving, the electronic capture system of the black smoke vehicle captures the blackness plate 6 to obtain measurement data, and then obtains the blackness level indication error of the electronic capture system of the black smoke vehicle based on the measurement data. Loosen the quick clamp to remove the current blackness plate 6, and then replace it with a blackness plate 6 of another level and test it to obtain the blackness level indication error of the electronic capture system of the black smoke vehicle. After all the blackness plates 6 have been replaced.

[0059] Step 5: Vehicle 1 crosses the road at a speed of 3 km / h at a horizontal distance of 20 m from the black smoke vehicle electronic capture system.

[0060] Step 6: During driving, the electronic capture system of the smoky vehicle captures the blackness plate 6 to obtain measurement data, and then obtains the blackness level indication error of the electronic capture system of the smoky vehicle based on the measurement data. Loosen the quick clamp to remove the current blackness plate 6, and then replace it with a blackness plate 6 of another level and test it to obtain the blackness level indication error of the electronic capture system of the smoky vehicle. After all blackness plates 6 are replaced, go to step 7.

[0061] Step 7: Take the maximum absolute value of the black level indication error of the black smoke vehicle electronic capture system as the indication error.

[0062] 3. Night calibration indication error

[0063] The ambient light intensity is measured by a light meter. When the light intensity value is within the range of (0-1000) lx, night calibration is carried out.

[0064] Step 1: Clamp the blackness plate 6 onto the fixing plate 4 by means of a quick clamp, and then control the vehicle body 1 to move to the electronic capture system of the black smoke vehicle that needs to be calibrated by means of a remote controller. Figure 4 The horizontal distance L between the blackness plate 6 and the camera 15 (the distance between the vehicle body 1 and the camera 15 after projection on the road surface) is measured by a laser rangefinder, and the vehicle body 1 stops when it moves within 20m of the black smoke vehicle electronic capture system.

[0065] Step 2: Rotate the turntable 2 to adjust the horizontal angle of the blackness plate 6, so that the blackness plate 6 faces the optical axis of the camera 15, and start the electric push rod 5 to drive the blackness plate 6 to swing up and down, so that the blackness plate 6 is perpendicular to the optical axis of the camera 15. Place the light meter probe at the center of the upper edge of the standard blackness plate 6, facing the camera 15, with the angle consistent with the angle of the standard blackness plate 6, and measure the light value and record it.

[0066] Step 3: Turn on the fill light of the electronic capture system of the smoky car or take other measures to make the camera reach the best shooting state of the blackness board 6. The electronic capture system of the smoky car captures the blackness board 6 to obtain measurement data, and then obtains the blackness level indication error of the electronic capture system of the smoky car based on the measurement data.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A calibration device for a fixed black smoke vehicle electronic capture system, characterized in that: It includes a movable body, a turntable is rotatably arranged on the body, a support plate is arranged on the turntable, a locking handle is threadedly connected to the support plate, the front end of the support plate is hinged to a fixed plate, a quick clamp for fixing a blackness plate is arranged on the fixed plate, an electric push rod is hinged to the rear end of the support plate, the end of the electric push rod away from the support plate is hinged to the fixed plate, a positioning rod for supporting the fixed plate is arranged at the rear end of the support plate, and the turntable is arranged close to the rear end of the support plate.

2. The calibration device for the electronic capture system of a fixed black smoke vehicle according to claim 1, characterized in that: The vehicle body comprises two upper and lower bottom plates, a driving mechanism for driving the wheels to rotate and a steering mechanism for driving the wheels to turn are arranged between the two bottom plates, and a lithium battery is also arranged between the two bottom plates.

3. The calibration device for the electronic capture system of a fixed black smoke vehicle according to claim 1, characterized in that: An L-shaped plate is fixed to the rear end of the support plate, the horizontal position of the L-shaped plate is lower than that of the support plate, and the electric push rod is hinged on the L-shaped plate.

4. The calibration device for the electronic capture system of a fixed black smoke vehicle according to claim 3 is characterized in that: It also includes a first hinge support, which is fixed to the L-shaped plate by bolts, and the first hinge support is hinged to the electric push rod.

5. The calibration device for the electronic capture system of a fixed black smoke vehicle according to claim 4, characterized in that: A reinforcing plate is fixed on the L-shaped plate, the first hinge support is arranged between the two reinforcing plates, and the reinforcing plate is arranged between the two positioning rods.

6. The calibration device for the electronic capture system of a fixed black smoke vehicle according to claim 5, characterized in that: A rubber sleeve is fixed to the upper end of the positioning rod.

7. The calibration device for the electronic capture system of a fixed black smoke vehicle according to claim 6, characterized in that: It also includes a second hinge support and a third hinge support, wherein the second hinge support and the third hinge support are respectively fixed to the support plate and the fixing plate, and the second hinge support and the third hinge support are hinged.

8. The calibration device for the electronic capture system of a fixed black smoke vehicle according to claim 7, characterized in that: The fixed plate includes a panel and a support frame fixed to the panel, the support frame is fixed to the third hinge support, and the support frame is hinged to the electric push rod through the fourth hinge support.

9. The calibration device for the electronic capture system of a fixed black smoke vehicle according to claim 2, characterized in that: It also includes a remote controller. A control box is provided between the two base plates. The control box is provided with a plurality of buttons. The remote controller is connected to a control system in the control box. The control system is used to control the rotation and steering of the wheels. The control system is also used to control the extension and retraction of the electric push rod.

10. The calibration device for the electronic capture system of a fixed black smoke vehicle according to claim 9, characterized in that: It also includes a light meter and a laser rangefinder, wherein the light meter is used to measure the light intensity, and the laser rangefinder is used to measure the horizontal distance between the blackness plate and the electronic capture system of the black smoke vehicle.

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