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Continuous calibration platform and calibration method for road condition sensor

A technology of road surface conditions and sensors, applied in the direction of instruments, measuring devices, etc., can solve the problems of lack of reliable test equipment, poor test accuracy and effectiveness, etc., achieve the effect of less interference from human factors and reduce measurement errors

Active Publication Date: 2022-08-02
HARBIN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of lack of reliable testing equipment for the calibration of road surface condition sensors in the prior art, and the problem of poor test accuracy and effectiveness, and to provide a continuous calibration platform and calibration method for road surface condition sensors

Method used

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  • Continuous calibration platform and calibration method for road condition sensor
  • Continuous calibration platform and calibration method for road condition sensor
  • Continuous calibration platform and calibration method for road condition sensor

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specific Embodiment approach 1

[0047] Specific embodiment one: the following combination Figure 1-Figure 4 This embodiment will be described. The continuous calibration platform of the road surface condition sensor described in this embodiment includes a calibration platform 2 , a calibration disc 3 , a cross guide 4 , a thickness gauge 8 and a motor 10 ;

[0048] The calibration table 2 has a square opening on the table, the right end of the square opening is connected with a cross guide rod chute, the left end of the square opening is provided with a "T"-shaped rod, and the cross bar of the "T"-shaped rod is fixed on the left end table of the square opening. , the vertical rod of the "T" type rod is suspended on the square opening;

[0049] The cross guide bar 4 is installed on the square opening, the center of the cross bar of the cross guide bar 4 is provided with a pulley chute, and the vertical bar of the cross guide bar 4 on the left side of the cross bar The vertical rod of the ” type rod is match...

specific Embodiment approach 2

[0057] Specific embodiment two: the following combination figure 2 This embodiment is described, and this embodiment further describes the first embodiment, which also includes an environmental simulation box 1;

[0058] The environment simulation box 1 includes a box body arranged on the outermost side, and also includes a rain shower system 12, a refrigeration system and a heating system arranged in the box body for simulating rainfall, freezing and different ambient temperatures; The wall is provided with a circular hole with a wire, and is sealed with a heat insulating material.

[0059] In this embodiment, the rain shower system 12 , the cooling system and the heating system are intelligently controlled by the controller, and displayed and adjusted by the touch screen. The transmitting module of the thickness gauge 8 is a row of ultrasonic transmitting heads, and the thickness gauge 8 can also be intelligently controlled by the controller.

[0060] In this embodiment, ...

specific Embodiment approach 3

[0061] Specific embodiment three: the following combination figure 1 and figure 2 Describing this embodiment, this embodiment further describes Embodiment 1, which further includes a drawbar 9 , one end of the drawbar 9 is fixedly connected to the pulley 5 , and the other end is connected to the output shaft of the motor 10 .

[0062] Further, the length of the traction rod 9 is half of the side length of the square opening on the table surface of the calibration table 2 .

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Abstract

A continuous calibration platform for road surface condition sensors and a calibration method thereof belong to the field of road instrument calibration. It includes: a square opening is opened on the calibration table, the right end of the opening is connected with a cross guide rod chute, a cross guide rod is installed on the opening, a pulley chute is opened in the center of the cross rod, and the vertical rod on the right side of the cross rod is installed on the cross guide rod The rod chute; the pulley is installed in the pulley chute; the road condition sensor is installed on the calibration plate, and the calibration plate is installed on the cross guide rod; the thickness gauge is installed on the height adjustment assembly; the pulley is controlled by the motor in the pulley chute Slide, drive the cross guide rod to reciprocate along the cross guide rod chute, so that the calibration plate reciprocates, and the thickness of the water film or ice film on the surface of the road surface condition sensor is measured by the thickness gauge. Data for water film and ice film measured by contact-type road wetness sensors for road calibration.

Description

technical field [0001] The invention relates to a continuous calibration platform of a road surface condition sensor and a calibration method thereof, belonging to the field of road instrument calibration. Background technique [0002] With the improvement of road infrastructure and the improvement of road transportation level, it has made great contributions to the development of the national economy. However, the traffic accident rate of road transportation is very high, especially after the road surface is wet and icy, the friction coefficient of the road surface is greatly reduced, the anti-skid ability is greatly weakened, and it is very easy to cause traffic accidents. According to statistics, up to 70% of all kinds of traffic accidents are caused by slippery roads, causing huge losses to the social economy and people's life and property safety. Therefore, it is of great significance to monitor the state of water accumulation and icing on the road surface through the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/08
CPCG01B21/08
Inventor 马宪永解伟阎宗尧董泽蛟刘陆海殷允飞石南
Owner HARBIN INST OF TECH
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