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Method and device for reinforcing braking track of ABS vehicle on dried asphalt road

A technology for asphalt pavement and automobile braking, which is applied to the surface coating device, spray device, liquid spray device, etc., and can solve the problems of easy disappearance, shallow braking traces, and inability to effectively identify traces at the scene of traffic accidents. , to achieve the effect of simple operation, high reliability, and improving the level and efficiency of trace exploration

Inactive Publication Date: 2011-03-30
INST OF FIELD OPERATION SURGERY NO 3 MILITARY MEDICL UNIV PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] One of the purposes of the present invention is to provide a method for enhancing ABS vehicle braking marks on dry asphalt pavement, to overcome the problem that traces at the scene of traffic accidents cannot be effectively identified due to the shallow and easy disappearance of ABS vehicle braking marks, so as to improve traffic safety. Level and Efficiency of Trace Investigation at Accident Scene

Method used

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  • Method and device for reinforcing braking track of ABS vehicle on dried asphalt road
  • Method and device for reinforcing braking track of ABS vehicle on dried asphalt road
  • Method and device for reinforcing braking track of ABS vehicle on dried asphalt road

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Such as figure 1 As shown, follow the steps below to carry out on-site work:

[0027] (a) Draw a moving baseline for field operations 12

[0028] Arrive at the scene of the accident as soon as possible and isolate and protect it. Taking the car 10 parked at the scene of the accident as a starting point, draw a moving baseline 12 for on-site work on the side of the brake marks 14 against the direction of the car. The directions are parallel, and the length of the on-site operation moving base line 12 is greater than the length of the braking trace 14 .

[0029] (b) spray reinforcement powder

[0030] Move the strengthening device 11 at a constant speed along the moving base line 12 of the field operation, and spray dry lime powder with a particle size of 150 μm to the sky above the braking marks 14. The angle between the powder spraying direction and the ground is α, and the size of α is 45°. The size of the air volume is advisable that the lime powder can permeate to...

Embodiment 2

[0036] (a) Draw a moving baseline for on-site operations

[0037] Same as Example 1.

[0038] (b) On-site pretreatment

[0039] If the time to arrive at the scene is more than 20 minutes from the accident, and the road surface of the accident site has been covered by fine particles of dust, the accident site needs to be pretreated. The specific method is: move the strengthening device 11 at a constant speed along the moving base line 12 of the field operation, and simultaneously blow air toward the braking marks 14, so as to blow away the ash layer covering the braking marks of the ABS car on the dry road surface.

[0040] All the other steps are the same as in Example 1.

[0041] Such as figure 2Shown, be the enhancing device of the ABS automobile braking marks on dry asphalt pavement of the present invention, by car body 1, wheel 2, accumulator power supply 3, DC blower 4, feed hopper 5, spray pipe 6, feed pipe 7, Control valve 8 and driving motor 9 are made up of, and ...

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Abstract

In order to solve the problem that the traces in road traffic accidents can not be effectively identified as the ABS automobile brake imprints are light and easily disappear, the invention discloses a method used for enhancing ABS automobile brake imprints on dry asphalt pavement. The method comprises the steps as follows: (a) shifting baselines of site operation are drawn; (b) enhancing powder is sprayed; (c) the powder covering the background is cleaned. The invention adopts the principle that ABS automobile brake imprints belong to layer-reducing imprints and carry static to enhance the ABS automobile brake imprints on the dry asphalt cement pavement by a physical method, thereby overcoming the problem that the traces in road traffic accidents can not be effectively identified as the ABS automobile brake imprints are light and easily disappear and improving the exploration level and efficiency of the imprints in the road traffic accidents. Meanwhile, the method has the advantages of simple operation and high reliability. And, the invention further discloses a device for enhancing ABS automobile brake imprints on dry asphalt pavement.

Description

technical field [0001] The invention relates to a physical evidence identification method for traffic accidents, in particular to a method and a device used for enhancing automobile ABS automobile braking traces left on dry asphalt cement road surfaces. Background technique [0002] Traffic accidents have become the "world's number one public hazard" that threatens human safety, and have a great impact on social stability and economic development. Since 2000 in my country, the death toll due to traffic accidents has continued to hover at a high level, especially from 2001 to 2004, the number of deaths has exceeded 100,000 for several consecutive years. Although the number of deaths has declined in 2006, the direct economic loss still reached 14.9 billion. Therefore, how to deal with these accidents efficiently and fairly has always been an important challenge faced by traffic law enforcement departments and judicial appraisal departments. [0003] The various traces and phy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D3/12B05B7/14B05D1/12
Inventor 赵辉尹志勇杨光瑜董蕻陈蓉王正国
Owner INST OF FIELD OPERATION SURGERY NO 3 MILITARY MEDICL UNIV PLA