Calibration device for mobile black smoke vehicle electronic snapshot system

Abstract

A mobile black smoke vehicle electronic snapshot system calibration device disclosed by the present invention comprises a workbench, a calibration mechanism and a clamp are assembled on the workbench, the calibration mechanism and the clamp are oppositely arranged on the workbench, the calibration mechanism comprises horizontal slide rails symmetrically and fixedly installed on the workbench, the horizontal slide rails are slidably connected with vertical slide rails, and the vertical slide rails are slidably connected with the horizontal slide rails. A connecting plate is connected between the vertical sliding rails in a sliding mode, a polyhedral roller is rotationally connected to the connecting plate, magnetic attraction blocks are arranged on the four corners of each panel of the polyhedral roller along the panel, and the polyhedral roller attracts standard color cards through the magnetic attraction blocks. Through the device, the black smoke vehicle detector in a snapshot system can be calibrated quickly and conveniently, the device is convenient to move and can be carried out to measure the snapshot system which is put into work, the working efficiency is improved to a great extent, the polyhedral roller rotates, and the detection accuracy is improved. Therefore, the color cards with different chromaticity are aligned with the to-be-calibrated camera of the black smoke vehicle detector so as to verify the calibration result.

Description

Technical Field

[0001] The invention belongs to the technical field of calibration of electronic capture equipment, and in particular relates to a calibration device for an electronic capture system of a mobile black smoke vehicle. Background Art

[0002] Amid the increasingly severe atmospheric particulate pollution, nitrogen oxides emitted by diesel vehicles account for more than 80% of the total automobile emissions, and particulate matter accounts for more than 90%, becoming the main source of automobile exhaust pollutants. Therefore, it is necessary to capture "black smoke vehicles" that do not meet emission standards. The black smoke vehicle electronic capture system uses video image processing technology to determine the Ringelmann blackness level of the motor vehicle exhaust plume. At present, various regions have built black smoke vehicle electronic capture systems based on video technology, and initial results have been achieved in the regulation of black smoke vehicles. However, the existing black smoke vehicle electronic capture systems lack scientific verification methods and standards. Whether the measurement results of the black smoke vehicle electronic capture systems are accurate and reliable needs further verification.

[0003] Chinese patent CN107831170A discloses a Ringelmann blackness correction method for an electronic capture system. By adding a background board, adjusting the distance and placement of the black smoke vehicle and the electronic capture system, and comparing and correcting the measurement results of the electronic capture system with the measurement results of the photoelectric smoke detector, the measurement results of the electronic capture system are made more accurate, which is conducive to the further popularization and application of the electronic capture system for black smoke vehicles.

[0004] It can be seen that the existing Ringelmann blackness calibration method for the capture system is usually to use a test vehicle to measure the exhaust emissions and then use the capture system to be calibrated to capture the exhaust. The measurement results are compared with the standard Ringelmann blackness of the test vehicle to determine whether the capture device of the capture system is qualified. However, the limitations of this method are that, first, the test vehicle is too large, and it is difficult to control the distance between it and the capture system when starting. Secondly, the test vehicle cannot be fully controllable. During the experiment, the throttle size of the test vehicle will affect the exhaust emission Ringelmann blackness. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A mobile black smoke vehicle electronic capture system calibration device comprises a workbench, on which a calibration mechanism and a fixture are mounted, wherein the calibration mechanism and the fixture are arranged opposite to each other on the workbench.

[0008] The calibration mechanism comprises a horizontal slide rail symmetrically fixedly mounted on the workbench, a vertical slide rail is slidably connected to the horizontal slide rail, and a connecting plate is slidably connected between the vertical slide rails, a polyhedron roller is rotatably connected to the connecting plate, and magnetic blocks are arranged along the four corners of each panel of the polyhedron roller, and the polyhedron roller uses the magnetic blocks to absorb the standard color card;

[0009] The fixture includes a tooling clamp seat, which is slidably connected to the workbench. A plurality of V-shaped clamp blocks are provided on the upper surface of the tooling clamp seat. The V-shaped clamp blocks are arranged along the length of the tooling clamp seat. A telescopic rod is provided on one side of the V-shaped clamp block. A pressure plate is connected to the output end of the telescopic rod. The pressure plate is located above the V-shaped clamp block.

[0010] Both ends of the horizontal slide rail are provided with a rotating seat, which consists of a roller shaft and a protective shell sleeved on the outside of the roller shaft. The roller shaft is installed in the protective shell with a bearing, and the roller shafts on the two rotating seats are jointly sleeved with a track; the vertical slide rail has the same structure as the horizontal slide rail.

[0011] A second sliding seat is slidably connected to the horizontal slide rail, the lower surface of the second sliding seat is fixed on the crawler of the horizontal slide rail, and the vertical slide rail is installed on the upper surface of the second sliding seat.

[0012] A second transmission shaft is inserted and connected between the rotating seats on the same side of the horizontal slide rail, and the second transmission shaft is connected to the roller shaft in the rotating seat on the horizontal slide rail, and one end of the second transmission shaft is connected to a second driver.

[0013] A first sliding seat is slidably connected to the vertical slide rail, the inner surface of the first sliding seat is fixed on the crawler of the vertical slide rail, and the connecting plate is fixed on the outer surface of the first sliding seat.

[0014] A first transmission shaft is inserted and connected between the rotating seats on the same side of the vertical slide rail, and the first transmission shaft is connected to the roller shaft in the rotating seat on the vertical slide rail, and one end of the first transmission shaft is connected to the first driver.

[0015] The connecting plate is an overall concave structure, with through grooves on both side walls of the concave part of the connecting plate, a rotating shaft is placed in the through groove, and the rotating shaft passes through the polyhedral roller. A third driver is installed on one side of the outer wall of the connecting plate, and the driving end of the third driver is connected to the rotating shaft.

[0016] A telescopic cylinder is installed inside the tooling clamp seat, an output end of the telescopic cylinder is connected with a connecting plate, and a telescopic rod penetrates the upper surface of the tooling clamp seat and is fixedly connected to the side surface of the connecting plate.

[0017] A track is arranged on the upper surface of the workbench and below the tooling clamp seat, and slide bars are arranged at both ends of the lower surface of the tooling clamp seat, and the slide bars are slidably connected to the track.

[0018] A mounting plate is mounted on the workbench and located between the calibration mechanism and the fixture, and a laser rangefinder is mounted on the upper surface of the mounting plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The calibration device in the present application is provided with a calibration mechanism and a fixture, wherein the calibration mechanism is provided with a standard color card, and the camera of the black smoke vehicle detector to be calibrated is fixed on the fixture, and the camera of the black smoke vehicle detector photographs the standard color card and processes it through the capture system to obtain the Ringelmann blackness. The Ringelmann blackness of the standard color card is certain, and by comparing the color card with the Ringelmann blackness calculated by the capture system, it can be determined whether the captured system under test is qualified. The black smoke vehicle detector in the captured system can be calibrated quickly and conveniently through this device, and the device is easy to move and can be carried out to measure the captured system that has been put into operation, thereby greatly improving work efficiency.

[0021] (2) In order to ensure the calibration result, the present application is provided with a polyhedron drum, and a standard color card is installed on the polyhedron drum. Furthermore, since the polyhedron drum has multiple faces, color cards of different blackness can be installed respectively. The polyhedron drum is provided with a driving mechanism that can rotate, so as to control the rotation of the polyhedron drum during the calibration process, so that the color cards of different chromaticities are aligned with the camera of the black smoke vehicle detector to be calibrated, and the captured traditional processing results are compared with the color cards of different chromaticities respectively, so as to determine whether they are qualified.

[0022] (3) In order to ensure that the camera of the black smoke detector takes the same picture at each inspection and reduce the repeatability uncertainty introduced by the non-uniformity of the blackness card value, the present application is also provided with a laser rangefinder. During the inspection, the laser rangefinder is first used to detect the distance from the center of the camera of the black smoke detector to the color card on the polyhedron drum, and then the black smoke detector is started to take a picture of the color card. When the polyhedron drum rotates to replace the color card, the laser rangefinder is used again to measure the distance to ensure that the distance from the camera of the black smoke detector to the color card of the polyhedron drum is the same as the distance taken last time, thereby reducing the error. At the same time, the laser rangefinder can also provide certain assistance for the movement of the calibration system on the workbench, so that the calibration mechanism moves to a suitable position with the fixture.

[0023] (4) The clamp in the present application uses a combination of a V-shaped clamp block and a pressure plate to clamp the black smoke detector. The V-shaped clamp block is made of nylon or polytetrafluoroethylene and other materials with elasticity. The inner width can be changed to a certain extent by extrusion, thereby meeting the effective support requirements of the measuring head of most equipment. The pressure plate can be raised and lowered above the V-shaped clamp block by the telescopic rod to meet the clamping requirements. At the same time, the telescopic rod 302 is installed on the connecting plate, and the connecting plate is driven to rise and fall by the telescopic cylinder, so that the height of multiple pressure plates can be uniformly adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The three-dimensional structure of the calibration device in this application Figure 1 .

[0025] Figure 2 The three-dimensional structure of the calibration device in this application Figure 2 .

[0026] Figure 3 This is the overall structural diagram of the calibration and adjustment mechanism in this application.

[0027] Figure 4 This is a structural diagram of the polyhedron drum in this application.

[0028] Figure 5 This is the driving module of the adjustment mechanism in this application and its partial enlarged view.

[0029] Figure 6 This is a schematic diagram of the fixture and workbench assembly structure in this application Figure 1 .

[0030] Figure 7 This is a schematic diagram of the fixture and workbench assembly structure in this application Figure 2 .

[0031] Figure 8 This is a front view of the fixture in this application.

[0032] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0033] 100, workbench; 101, mounting plate; 200, calibration mechanism; 201, vertical slide rail; 2011, first driver; 2012, first transmission shaft; 2013, first sliding seat; 202, horizontal slide rail; 202a, crawler; 202b, rotating seat; 2021, second driver; 2022, second transmission shaft; 2023, second sliding seat; 203, polyhedral roller; 203a, connecting plate; 203b, third driver; 300, tooling clamp seat; 301, telescopic cylinder; 301a, connecting plate; 302, telescopic rod; 302a, pressure plate; 303, V-shaped clamp block; 304, slide bar. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0037] See also Figure 1 and Figure 2 : is a structural diagram of the calibration device of the mobile black smoke vehicle electronic capture system in this embodiment. The calibration device in this embodiment includes a workbench 100, on which a calibration mechanism 200 and a fixture are mounted. The calibration mechanism 200 and the fixture are arranged opposite to each other on the workbench 100. The fixture is used to clamp and fix the black smoke detector to be calibrated so that the camera of the black smoke detector is opposite to the calibration mechanism 200.

[0038] See also Figure 3 The figure is a schematic diagram of the overall structure of the calibration mechanism 200. The present application adopts a standard color card as a detection source, and sets the color card and the black smoke detector to be calibrated fixed by a fixture in a relative manner. The color card is photographed by a camera on the black smoke detector and uploaded to the existing black smoke capture system for Ringelmann blackness analysis. Therefore, the calibration mechanism 200 in the present application includes a polyhedron drum 203, which provides a space for the assembly of the color card. In order to facilitate the replacement of the color card, the present application provides magnetic blocks on the four corners of the plate along each panel of the polyhedron drum 203. The standard color card can adopt an iron frame or also provide a magnetic block, so that the standard color card is adsorbed on the polyhedron drum 203 by the magnetic block. In order to further verify the calibration result, the polyhedron drum 203 in the present application is provided with at least ten faces, each face can be installed with a color card, and in the actual installation process, the blackness of the color card on each face can be different, so that on the one hand, the black smoke concentration of exhaust emissions from different vehicles can be simulated, and on the other hand, the calibration result of the black smoke detector can be verified twice or multiple times.

[0039] In order to obtain better shooting results and thus reduce calibration errors, the calibration mechanism 200 in the present application is in the best state to be directly opposite to the camera provided in the black smoke detector clamped on the fixture, so that the focus of the camera on the detector can be on the same straight line as the center of the color card. Therefore, the polyhedron roller 203 on which the color card is installed needs to be able to be adjusted in the XY axis direction. The specific solution is as follows: the calibration mechanism 200 includes a horizontal slide rail 202 symmetrically fixedly mounted on the workbench 100, and a vertical slide rail 201 is slidably connected to the horizontal slide rail 202. The x-axis direction movement adjustment of the polyhedron roller 203 is achieved by the horizontal slide rail 202, and the Y-axis direction movement adjustment of the polyhedron roller 203 is achieved by the vertical slide rail 201.

[0040] See also Figure 3 and Figure 5 Schematic diagram of the driving structure of the calibration mechanism in this embodiment. Further, in order to realize the movement adjustment of the polyhedral roller 203 equipped with the color card in the X-axis direction, the specific scheme given in this embodiment is: a rotating seat 202b is provided at both ends of the horizontal slide rail 202, and the rotating seat 202b is composed of a roller shaft and a protective shell sleeved outside the roller shaft. The rotating seat 202b is a prior art and is often used in common mechanical devices. Its purpose is to provide support for the moving parts without affecting the movement of the driving parts. The roller shaft is installed in the protective shell with a bearing. The roller shafts on the two rotating seats 202b are jointly sleeved with a track 202a, and the track 202a is used as the present invention. The driving components in the embodiment; a second transmission shaft 2022 is inserted and connected between the rotating seats 202b on the same side of the horizontal slide rail 202, and the second transmission shaft 2022 is connected to the roller shaft in the rotating seat 202b on the horizontal slide rail 202, and one end of the second transmission shaft 2022 is connected to a second driver 2021, and the second driver 2021, as a power source, transmits the rotational force to the roller shaft through the second transmission shaft 2022, and the rotating side of the roller shaft drives the crawler 202a to operate; at the same time, a second sliding seat 2023 is slidably connected to the horizontal slide rail 202, and the lower surface of the second sliding seat 2023 is fixed on the crawler 202a of the horizontal slide rail 202;

[0041] In this embodiment, the second drive shaft 2022 is driven to rotate by the second driver 2021. Since the second drive shaft 2022 is connected to the roller shaft inside the rotating seat 202b, when the second drive shaft 2022 rotates, the roller shaft is synchronously driven to rotate. The track 202a sleeved on the roller shaft realizes the transmission function under the rotation of the roller shaft. Furthermore, the second sliding seat 2023 is connected to the track 202a. Therefore, when the track 202a is working, it will drive the second sliding seat 2023 to move on the horizontal slide rail 202. The vertical slide rail 201 is installed on the upper surface of the second sliding seat 2023, so that the horizontal length direction of the vertical slide rail 201 can be adjusted by driving the second sliding seat 2023 to move by the track 202a.

[0042] Continue reading Figure 3 and Figure 5 The vertical slide rail 201 has the same structure as the horizontal slide rail 202. A first sliding seat 2013 is slidably connected to the vertical slide rail 201. The inner surface of the first sliding seat 2013 is fixed to the track 202a of the vertical slide rail 201. The connecting plate 203a is fixed to the outer surface of the first sliding seat 2013. A first transmission shaft 2012 is inserted through the rotating seats 202b on the same side of the vertical slide rail 201, and the first transmission shaft 2012 is connected to the roller shaft in the rotating seat 202b on the vertical slide rail 201. One end of the first transmission shaft 2012 is connected to the first driver 2011.

[0043] In this embodiment, the first transmission shaft 2012 is driven to rotate by the first driver 2011. Since the first transmission shaft 2012 is connected to the roller shaft inside the rotating seat 202b, when the first transmission shaft 2012 rotates, the roller shaft is synchronously driven to rotate, and the crawler belt 202a sleeved on the roller shaft will also rotate synchronously. Further, the first sliding seat 2013 is connected to the crawler belt 202a, so when the crawler belt 202a works, it will drive the first sliding seat 2013 to move on the vertical slide rail 201. Further, the vertical slide rails 201 are connected to each other. The sliding connection is provided with a connecting plate 203a, specifically: a connecting plate 203a is fixedly installed between the first sliding seat 2013, and the polyhedron roller 203 is rotatably connected to the connecting plate 203a. In summary, the polyhedron roller 203 moves on the vertical slide rail 201 through the first sliding seat 2013, thereby realizing the movement adjustment of the polyhedron roller 203 in the Y direction. Further, the vertical slide rail 201 moves on the horizontal slide rail 202 through the second sliding seat 2023, thereby realizing the movement adjustment of the polyhedron roller 203 in the X-axis direction.

[0044] See also Figure 4Furthermore, in order to ensure the connection stability of the polyhedron drum 203, the present application makes the connecting plate 203a as a whole have a concave structure, which can not only meet the installation requirements of the polyhedron drum 203, but also will not cause gravity imbalance, so that the polyhedron drum 203 remains stable during the rotation process, and through grooves are opened on the two side walls of the inner concave part of the connecting plate 203a, and a rotating shaft is placed in the through groove, and the rotating shaft passes through the polyhedron drum 203, and a third driver 203b is installed on one side outer wall of the connecting plate 203a, and the driving end of the third driver 203b is connected to the rotating shaft, and the third The driver 203b drives the polygonal roller 203 to rotate on the connecting plate 203a through the rotating shaft. By rotating the polygonal roller 203, the standard color cards of different blackness magnetically attracted on the polygonal roller 203 are opposite to the black smoke detector to be calibrated in turn, so that the black smoke detector can shoot the color cards of different blackness, and then transmit the shot images to the capture system in the prior art for processing to obtain the Ringelmann blackness. The Ringelmann blackness of the standard color card is determined. By comparing the color card with the Ringelmann blackness calculated by the capture system, it can be determined whether the captured system under test is qualified.

[0045] See also Figure 6 , Figure 7 and Figure 8 1 is an overall structural diagram of the fixture in this embodiment. The fixture in this embodiment includes a fixture clamp seat 300, which is slidably connected to the workbench 100. The upper surface of the fixture clamp seat 300 is provided with a plurality of V-shaped clamp blocks 303. The V-shaped clamp blocks 303 are made of nylon or polytetrafluoroethylene and have elasticity. To a certain extent, the inner width can be changed by extrusion, thereby meeting the effective support requirements of the measuring head of most equipment. The V-shaped clamp blocks 303 are arranged along the length of the fixture clamp seat 300. A telescopic rod 302 is provided on one side of the V-shaped clamp block 303. The telescopic rod 303 is provided on the side of the V-shaped clamp block 303. The output end of 02 is connected to a pressure plate 302a, which is located above the V-shaped clamp 303. The pressure plate can be raised and lowered above the V-shaped clamp by the telescopic rod, thereby meeting the clamping requirements; a telescopic cylinder 301 is installed inside the tooling clamp seat 300, and the output end of the telescopic cylinder 301 is connected to a connecting plate 301a. The telescopic rod 302 passes through the upper surface of the tooling clamp seat 300 and is fixedly connected to the side of the connecting plate 301a. The connecting plate 301a is driven to rise and fall by the telescopic cylinder 301, so that the heights of multiple pressure plates 302a can be uniformly adjusted.

[0046] It is worth noting that the distance between the black smoke detector and the color card during the calibration process will also affect the calibration result. Therefore, the present application is equipped with a mounting plate 101 on the workbench 100 and between the calibration mechanism 200 and the fixture, and a laser rangefinder is installed on the upper surface of the mounting plate 101. During the detection, the laser rangefinder is first used to detect the distance from the center of the black smoke detector camera to the color card on the polyhedron drum 203, and then the black smoke detector is started to shoot the color card. When the polyhedron drum 203 rotates to replace the color card, the laser rangefinder is used again to measure the distance. If the measured result is different from the last distance, the third driver 203b is controlled to drive the polyhedron drum 203 to rotate. The body roller 203 rotates so that the panel on the polyhedron roller 203 for shooting the color card is vertical. This operation can prevent the panel from tilting due to the polyhedron roller 203 not rotating properly. The distance between the tilted panel and the black smoke detector camera will increase, thereby affecting the shooting result, causing a large error in the Ringelmann blackness generated by two or more shots. It is ensured that the distance from the black smoke detector camera to the color card of the polyhedron roller 203 is the same as the distance of the last shot, thereby reducing the error. Further, it should be noted that the laser rangefinder in this application needs to be aligned with the center point of the camera on the black smoke detector to be calibrated before measuring the distance.

[0047] In summary: When the device in the present application is in use, the black smoke detector to be calibrated is placed on the V-shaped clamp block 303, the telescopic rod 302 is controlled to drive the pressure plate 302a to move downward to press the black smoke detector, and the laser rangefinder is installed on the mounting plate 101. During installation, pay attention to aligning the center of the light source point of the laser rangefinder with the center point of the camera of the black smoke detector. According to the measurement result of the laser rangefinder, the distance between the calibration mechanism 200 and the camera of the black smoke detector is adjusted. Generally speaking, 50 cm is the best position. The adjustment of the calibration mechanism 200 is mainly through the vertical slide rail. The vertical slide rail 201 and the horizontal slide rail 202 are used for control, wherein the vertical slide rail 201 adjusts the height of the polyhedron roller 203, and the horizontal slide rail 202 adjusts the distance between the polyhedron roller 203 and the black smoke detector camera, ensuring that the center point of the black smoke detector camera is aligned with the center of the color card fixed by magnetic attraction on the polyhedron roller 203. Since the vertical slide rail 201 and the horizontal slide rail 202 have the same structure, this embodiment takes the vertical slide rail 201 as an example to illustrate the process of adjusting movement; the specific adjustment process is: the first driver 2011 drives the second driver 2011 to move the second driver 2012 to move the second driver 2013 to move the second driver 2014 to move the second driver 2015 to move the second driver 2016 to move the second driver 2017 to move the second driver 2018 to move the second driver 2019 to move the second driver 2020 to move the second driver 2019 to move the second driver 2018 ... A transmission shaft 2012 rotates. Since the first transmission shaft 2012 is connected to the roller shaft inside the rotating seat 202b, when the first transmission shaft 2012 rotates, the roller shaft is synchronously driven to rotate, and the crawler 202a sleeved on the roller shaft will also rotate synchronously. Further, the first sliding seat 2013 is connected to the crawler 202a, so when the crawler 202a works, it will drive the first sliding seat 2013 to move on the vertical slide rail 201. The connecting plate 203a for connecting the polyhedral roller 203 is installed on the first sliding seat 2013, so that the polyhedral roller 203 is height adjusted, and similarly, the horizontal slide rail 202 is controlled to move, and finally the vertical slide rail 201 installed on the second sliding seat 2023 is made to move back and forth, so as to adjust the distance between the polyhedron roller 203 and the black smoke detector camera; after the adjustment is completed, the black smoke detector camera is used to shoot the color card on the back plate of the polyhedron roller 203, and the shot picture is transmitted to the capture system for analysis to obtain the Ringelmann blackness, and the Ringelmann blackness of the measured Ringelmann blackness fish standard color card is compared to complete the calibration of the black smoke detector camera.

[0048] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. A mobile black smoke vehicle electronic capture system calibration device, comprising a workbench (100), a calibration mechanism (200) and a fixture are mounted on the workbench (100), the calibration mechanism (200) and the fixture are arranged opposite to each other on the workbench (100), Features: The calibration mechanism (200) comprises a horizontal slide rail (202) symmetrically fixedly mounted on the workbench (100), the horizontal slide rail (202) being slidably connected to a vertical slide rail (201), and a connecting plate (203a) being slidably connected between the vertical slide rails (201), a polyhedron roller (203) being rotatably connected to the connecting plate (203a), and magnetic blocks are provided along the four corners of each panel of the polyhedron roller (203), and the polyhedron roller (203) is adsorbed with a standard color card by the magnetic blocks; The clamp comprises a fixture clamp seat (300), the fixture clamp seat (300) is slidably connected to the workbench (100), a plurality of V-shaped clamp blocks (303) are arranged on the upper surface of the fixture clamp seat (300), the V-shaped clamp blocks (303) are arranged along the length of the fixture clamp seat (300), a telescopic rod (302) is arranged on one side of the V-shaped clamp block (303), the output end of the telescopic rod (302) is connected to a pressing plate (302a), and the pressing plate (302a) is located above the V-shaped clamp block (303).

2. The mobile black smoke vehicle electronic capture system calibration device according to claim 1 is characterized by: Both ends of the horizontal slide rail (202) are provided with a rotating seat (202b), the rotating seat (202b) comprises a roller shaft and a protective shell sleeved on the outside of the roller shaft, the roller shaft is installed in the protective shell by using a bearing, and the roller shafts on the two rotating seats (202b) are sleeved with a track (202a) together; the vertical slide rail (201) and the horizontal slide rail (202) have the same structure.

3. The mobile black smoke vehicle electronic capture system calibration device according to claim 2 is characterized by: A second sliding seat (2023) is slidably connected to the horizontal sliding rail (202); the lower surface of the second sliding seat (2023) is fixed on the track (202a) of the horizontal sliding rail (202); and the vertical sliding rail (201) is installed on the upper surface of the second sliding seat (2023).

4. The mobile black smoke vehicle electronic capture system calibration device according to claim 2 is characterized by: A second transmission shaft (2022) is inserted through the rotating seats (202b) on the same side of the horizontal slide rail (202), and the second transmission shaft (2022) is connected to the roller shaft in the rotating seat (202b) on the horizontal slide rail (202), and one end of the second transmission shaft (2022) is connected to a second driver (2021).

5. The mobile black smoke vehicle electronic capture system calibration device according to claim 2 is characterized by: A first sliding seat (2013) is slidably connected to the vertical sliding rail (201), the inner surface of the first sliding seat (2013) is fixed on the track (202a) of the vertical sliding rail (201), and the connecting plate (203a) is fixed on the outer surface of the first sliding seat (2013).

6. The mobile black smoke vehicle electronic capture system calibration device according to claim 5 is characterized by: A first transmission shaft (2012) is inserted through the rotating seats (202b) on the same side of the vertical slide rail (201), and the first transmission shaft (2012) is connected to a roller shaft in the rotating seat (202b) on the vertical slide rail (201), and one end of the first transmission shaft (2012) is connected to a first driver (2011).

7. The mobile black smoke vehicle electronic capture system calibration device according to claim 5 is characterized by: The connecting plate (203a) is in a concave shape as a whole, and through grooves are provided on the two side walls of the inner concave part of the connecting plate (203a), and a rotating shaft is placed in the through groove, and the rotating shaft passes through the polyhedral roller (203). A third driver (203b) is installed on one side outer wall of the connecting plate (203a), and the driving end of the third driver (203b) is connected to the rotating shaft.

8. The mobile black smoke vehicle electronic capture system calibration device according to claim 1 is characterized by: A telescopic cylinder (301) is installed inside the tooling clamp seat (300), the output end of the telescopic cylinder (301) is connected to a connecting plate (301a), and the telescopic rod (302) passes through the upper surface of the tooling clamp seat (300) and is fixedly connected to the side of the connecting plate (301a).

9. The mobile black smoke vehicle electronic capture system calibration device according to claim 1 is characterized by: A track is provided on the upper surface of the workbench (100) and below the fixture clamp seat (300), and sliding bars (304) are provided at both ends of the lower surface of the fixture clamp seat (300), and the sliding bars (304) are slidably connected to the track.

10. The mobile black smoke vehicle electronic capture system calibration device according to claim 1, characterized in that: A mounting plate (101) is mounted on the workbench (100) and located between the calibration mechanism (200) and the fixture, and a laser rangefinder is mounted on the upper surface of the mounting plate (101).

Images