A road surface condition automatic detection data positioning system and positioning method
An automatic detection and data positioning technology, applied in the direction of roads, roads, road repairs, etc., can solve the problems of uncertain abscissa coordinates, loss of significance in guiding road safety and maintenance, and longitudinal coordinates that do not strictly determine the statistical value, etc., to achieve high The effect of precision
Active Publication Date: 2016-07-06
TECH TRANSFER CENT CO LTD NANJING UNIV OF SCI & TECH
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Problems solved by technology
Pavement defects processed according to the vehicle coordinates cannot be easily found according to the pile number, which loses the significance of guiding road safety and maintenance
[0005] Although the GPS marking method, the mileage pile insertion correction mileage method, and even the coding and labeling method along the road have been used in the prior art, they have not effectively solved the above problems.
In particular, the side-to-side swing of the detection vehicle’s trajectory makes the abscissa position of the detection data more uncertain. Therefore, the data position obtained by the existing vehicle-mounted automatic detection equipment is not only not strictly determined in the longitudinal coordinate but only has the statistical value of the road section, and the abscissa position is more uncertain. Therefore, a definite three-dimensional pavement and strict three-dimensional disease distribution cannot be obtained
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[0040] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.
[0041] Such as figure 1 Shown is the system architecture of the automatic road condition detection data positioning system according to an embodiment of the present invention, wherein a road surface condition automatic detection data positioning system includes:
[0042] A lane mileage stake number position longitude and latitude collector 1, used to collect the latitude and longitude of each stake number position of the lane mileage stake, forming a mileage stake number-longitude and latitude electronic map database;
[0043] A first laser emitter 5, which is used to emit laser lines to the road surface to be tested, so as to form a section laser detection marking line on the road surface;
[0044] A second laser emitter 6 is used to emit a laser line to the lane line of the road surface to be me...
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The present invention provides a system and method for automatically detecting data positioning of road surface conditions. The method includes the following steps: using a latitude and longitude collector to collect the latitude and longitude of each stake number position of the mileage stake in the driveway to form a mileage stake number-longitude and latitude electronic map database; Utilize a vehicle-mounted numerical odometer to control the collection of the laser marking image of the road surface section and the latitude and longitude of the position, and automatically obtain the vehicle trajectory mileage and the geodetic coordinate latitude and longitude of the vehicle data points; Stake number-longitude and latitude electronic map database, carry out the latitude and longitude correlation of a certain vehicle data point position, determine the stake number position of a certain vehicle data point-that is, the Y coordinate value of the lane, and obtain it from the lane marking laser marking and the section laser marking The abscissa zero point and X coordinate value of the data overcome the influence of the non-linear trajectory and lateral swing of the detection vehicle, and ensure that the position of the data in the lane coordinates is strictly determined and expressed.
Description
technical field [0001] The invention relates to the technical field of road surface state detection, in particular to a road surface state automatic detection data positioning system and a positioning method. Background technique [0002] How to determine the position of vehicles, personnel or road signs, and diseases on the long highway, the most traditional method is also the most common-sense method is to set mileage piles along the road, so that the road is set to determine the starting point as a zero point. dimensional coordinates, as long as the mileage coordinates of the target on the road are given, the exact road position of the target can be determined, and anyone can easily find it. [0003] As pavement facilities, signs or static detection of disease location is convenient and well-known. Although the development of modern satellite positioning technology has established more scientific and strict geodetic coordinates, using the latitude and longitude of the ta...
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IPC IPC(8): E01C23/01
Inventor贺安之贺宁贺斌
OwnerTECH TRANSFER CENT CO LTD NANJING UNIV OF SCI & TECH