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Performance metering method of vehicle-mounted laser evenness instrument

A measurement method and flatness technology, applied in the field of performance measurement of vehicle-mounted laser flatness instrument, can solve problems affecting the quality of detection data, equipment verification or calibration work blank, unfavorable project quality evaluation, etc., to reduce the cost of measurement, measure The parameters are comprehensive and conducive to the effect of promotion

Active Publication Date: 2012-05-02
RES INST OF HIGHWAY MINIST OF TRANSPORT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, there are 80 to 100 sets of various types of flatness meters in use across the country. Due to the lack of technology, the verification or calibration of these devices is basically blank, and the measurement performance of each participating flatness meter has not been scientific, reasonable and accurate. It has seriously affected the quality of testing data, which is not conducive to the development of testing work, and is not conducive to the evaluation of the quality of the tested projects.

Method used

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  • Performance metering method of vehicle-mounted laser evenness instrument
  • Performance metering method of vehicle-mounted laser evenness instrument
  • Performance metering method of vehicle-mounted laser evenness instrument

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Experimental program
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Embodiment 1

[0023] figure 1 It is a schematic flowchart of the performance measurement method of the vehicle-mounted laser flatness meter of the present invention. Such as figure 1 As shown, the performance measurement method of the vehicle-mounted structure flatness meter of the present invention includes

[0024] Step 101, establishing an indoor ground, the flatness of which is lower than 2.5mm / m;

[0025] Step 102, establish an indoor static detection module on the indoor ground, install the vehicle-mounted laser levelness meter on the test vehicle, use the vehicle-mounted laser leveler to measure the height of the indoor static detection module and collect static measurement data, and compare the static measurement data with The height true value of the indoor static detection module is compared to obtain the static measurement error;

[0026] Step 103, select an outdoor measurement road;

[0027] Step 104, establish an outdoor dynamic flatness model on the outdoor measurement roa...

Embodiment 2

[0077] The difference between this embodiment and the first embodiment lies in the establishment method of the flatness model. By increasing the number of modules and detection steps in this embodiment, the actual flatness model can be simulated more comprehensively and accurately, and the vehicle-mounted flatness model can be more accurately evaluated. Measuring performance of the meter.

[0078] Wherein, in step 101, the flatness of the indoor ground is lower than 2.5mm / m.

[0079] Step 102 includes:

[0080] Step 102c, place a metal strip with a size of 400cm×10cm×3cm directly under the laser sensor of the vehicle-mounted laser levelness meter and level it, and use the vehicle-mounted laser levelness instrument to measure the distance between the laser sensor and the metal strip The distance is checked by the laser distance measurement of the flatness meter.

[0081] Step 102d, change the distance between the laser sensor and the metal slat by changing the height of the m...

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Abstract

The invention provides a performance metering method of a vehicle-mounted laser evenness instrument, comprising the following steps of: step 101: establishing an indoor ground; step 102: establishing an indoor static detection model on the indoor ground, and measuring and acquiring static measured data to obtain the static measurement error; step 103: selecting an outdoor measuring road; step 104: establishing an outdoor dynamic evenness model on the outdoor measuring road, and measuring and acquiring dynamic measured data to obtain the dynamic measurement error; and step 105: evaluating the performance level of the vehicle-mounted laser evenness instrument according to the static measurement error and the dynamic measurement error. The performance metering method of the vehicle-mounted laser evenness instrument can scientifically, reasonably and accurately carry out metering and detection evaluation on the performances of various vehicle-mounted laser evenness instruments, is convenient for implement and is beneficial to popularizing, thereby reducing the metering cost.

Description

technical field [0001] The invention relates to a performance measurement method, in particular to a performance measurement method of a vehicle-mounted laser flatness meter. Background technique [0002] Highway is an important transportation infrastructure and one of the "arteries" of national economic development. For a long time, especially after more than 20 years of reform and opening up, road transportation has made important contribute. With the continuous development of our country's economy, the flow of passenger and cargo transportation has expanded rapidly, and it is required to continue to expand the scale of road construction. The tasks and goals of road engineering construction in the field of transportation are: to speed up the construction of expressways and national and provincial arterial lines ("five vertical and seven horizontal" and "7918" projects), vigorously develop rural roads, and promote the modernization of my country's transportation. By the en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C23/01
Inventor 常成利荣建毛利建刘恒柏窦光武
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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