Universal mobile data acquisition and processing tunnel detection system for multi-scanner

A data acquisition and detection system technology, applied in the field of surveying and mapping engineering, can solve the problems of low measurement accuracy, limited index parameters, and low degree of automation

Active Publication Date: 2019-08-09
CAPITAL NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above patents are all for testing the daily parameters of the tunnel, the degree of automation is not high, the obtained index parameters are limited, and the measurement accuracy is not high

Method used

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  • Universal mobile data acquisition and processing tunnel detection system for multi-scanner
  • Universal mobile data acquisition and processing tunnel detection system for multi-scanner
  • Universal mobile data acquisition and processing tunnel detection system for multi-scanner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A multi-scanner general mobile data acquisition and processing tunnel detection system, comprising a data acquisition hardware module, a data acquisition and preprocessing module, and a data postprocessing module; the data acquisition hardware module and the data acquisition and preprocessing module connected, the data acquisition and preprocessing module is connected to the data postprocessing module.

[0056] as attached figure 1 As shown, the data acquisition hardware module includes an electric system, sensors and a vehicle body 1, and the sensors include a laser scanner 2, an odometer 4 and a displacement sensor.

[0057] as attached figure 2 As shown, the car body 1 has an "I" structure as a whole to ensure its stability in operation. Except for the laser scanner 2 and the odometer 4, almost all other components of the system are located inside the car body 1.

[0058] The laser scanner 2 is installed in the middle of the car body 1 through a bracket. The heigh...

Embodiment 2

[0081] Based on the above-mentioned embodiment 1, the similarities will not be described in detail. The difference is that the data acquisition hardware module also includes an inertial navigation component. One is to provide parameters related to orbit detection for orbit compliance detection, and the other is to realize Joint measurement with control points, and realize conversion to absolute coordinates for data collection.

[0082] The inertial navigation component collects the acceleration and angular velocity of the moving carrier autonomously by means of the inertial component, and can solve the velocity and position of the carrier in the navigation coordinate system; the combination of the inertial navigation component is fixedly installed on the same base and maintains consistent relative motion A collection of inertial sensors for orientation, the inertial navigation component includes three gyroscopes and three accelerometers.

[0083] The strapdown inertial navigat...

Embodiment 3

[0091] Based on the above-mentioned embodiment 2, the track smoothness detection module includes calculating the deviation between the measured data and the design data, and simulating the design data, and the simulating design data includes calculating the linear parameters of the simulating design data, and calculating the relative minimum fitting design data of the deviation.

[0092] The deviation between the calculated measured data and the design data is calculated by using the forward and reverse calculation method of line measurement, wherein the deviation includes lateral deviation, elevation deviation and superelevation deviation; calculating the lateral deviation and vertical deviation between the track measured data and the design data, The key factor is to determine the mileage information in the design data corresponding to the measured data points, and calculate the deviation based on this.

[0093] as attached Figure 8 As shown, AB is a certain section of the ...

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Abstract

The invention relates to a universal mobile data acquisition and processing tunnel detection system for a multi-scanner. The universal mobile data acquisition and processing tunnel detection system for the multi-scanner comprises a data acquisition hardware module, a data acquisition and pre-processing module and a data post-processing module. The data acquisition hardware module is connected withthe data acquisition and pre-processing module. The data acquisition and pre-processing module is connected with the data post-processing module. The data acquisition hardware module comprises an electric system, a sensor and a vehicle body. A displacement sensor comprises a laser, a laser detector and a measuring circuit. The electric system includes a remote controller, driving wheels and a central control power supply center. According to the universal mobile data acquisition and processing tunnel detection system for the multi-scanner, the defects of a traditional tunnel detection methodis solved, Faro, Leica and Z+F laser scanners are compatible for data acquisition to meet the requirements for different measurement accuracy, and the use of more users is supported; and meanwhile, onthe basis of meeting the daily requirements of tunnel detection, orbital data can be collected for orbit smoothness detection and absolute coordinate measurement.

Description

technical field [0001] The invention relates to the technical field of surveying and mapping engineering, in particular to a multi-scanner universal mobile data collection and processing tunnel detection system. Background technique [0002] As the number and scale of tunnels in our country increase year by year, the rapid monitoring and detection of tunnel structure status becomes particularly important. However, tunnel detection technology is very backward, and traditional detection methods are still used for detection. The traditional tunnel detection method is to use total station, profiler, etc. to detect, measure the section, and analyze the condition of the section. The traditional method consumes a lot of manpower and material resources, takes up too much construction time, and the detection efficiency is very low. [0003] With the emergence of 3D laser scanners, 3D laser scanning technology has gradually been favored by people because of its continuous, automatic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C7/06
CPCG01C7/06
Inventor 孙海丽钟若飞宫辉力刘玉娇杜黎明朱强刘爽
Owner CAPITAL NORMAL UNIVERSITY
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