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What do you know about road surface profiler?

Views:1     Author:Site Editor     Publish Time: 2020-08-10      Origin:Site


The road surface profiler is a pavement sensor developed with the latest professional technology. Safer to use, economical and practical, easy to install on any vehicle worldwide are its advantages. The road surface profiler was originally developed for PSI. The road surface profiler has a 90-degree Angle of view and can scan a 4.3-meter range at a speed of 1,000 times per second, as long as it is mounted on a test vehicle with a road surface of 2.15 meters or more.


The article includes three parts:


1. Introduction of road surface profiler

2. The development of road surface profiler

3. The road surface profiler’s angle of view

 

1.Introduction of road surface profiler


Laser Crack Detecting System


Road surface profiler is a road surface sensor developed with the latest specialized technology. It can measure both longitudinal and transverse road profiles. Compared to other testing techniques available, the road surface profiler provides more complete high precision data and easier installation. Safer to use, economical and practical, easy to install on any vehicle worldwide, these are its advantages. Its performance makes it potentially versatile. The next generation of products will increase some new options - integrated navigation system, including Inertial measuring instrument (Inertial measurement Unit) and global positioning system (GPS)), double track road macro texture and measurement high bridge. On - road test results of single sensor.

 

2. The development of road surface profiler


The road surface profiler was originally developed for PSI's patented Rolling Wheel Deflectometer (RWD). The development of RWD is yet to be completed. The completed product road surface profiler has been proved to be able to improve the existing road testing technology and obtain the data needed for various road condition indicators. RWD's goal is to be able to measure road conditions almost in real time. The coverage area is the reflection area centered on the center line of the wheel and the area 10 meters away from the reflection area. 

 

3. The road surface profiler’s angle of view


The road surface profiler has a 90-degree angle of view and can scan a range of 4.3 meters at a rate of 1,000 times per second, as long as it is mounted on a test vehicle 2.15 meters above the road surface. The scan was completed in 0.75 microseconds. If the road surface profiler is angled enough to cover the entire landscape, it can generate the entire landscape profile of the road including the shoulder and lane division. The raw data obtained had 943 uniformly angular points, whose coordinates were then converted to card coordinates. The operator can specify the number and distribution of sampling points. Phase shift Laser Radar (Ladar) technology was used on the road surface profiler-2002 to meet different needs. With the optimization of PSI, it can generate high-precision and high-frequency sampled data at the speed of highways. The road surface profiler can generate 1,258,000 data points per second. The accuracy can be compared to the best triangulation style Laser available. However, they only sample 20 times as often as the road surface profiler. As you can see, the nominal performance of the road surface profiler is 20 times better than the others.

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