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Device for collecting information of road section

A section information and collection device technology, applied in the field of automatic and accurate measurement of road section information collection devices, can solve the problems of poor measurement accuracy, large and heavy mechanical configuration, etc., and achieve high real-time and high reliability effects

Inactive Publication Date: 2007-05-09
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] In the past, the most used instruments in our country were three-meter ruler and continuous flatness meter. These instruments are limited by length and speed, and it is difficult to reflect the bumps and undulations of longer wavelengths on the road surface at higher speeds.
In addition, the continuous flatness meter still has problems such as low test efficiency, slow speed, large and heavy mechanical configuration, poor measurement accuracy, and poor reproducibility.

Method used

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  • Device for collecting information of road section
  • Device for collecting information of road section
  • Device for collecting information of road section

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] As shown in Figure 1-1, Figure 2, Figure 3, Figure 4-1, Figure 6, and Figure 7, a road section information collection device is composed of an upper computer subsystem and a lower computer subsystem. computer (also known as the upper computer), the first communication card (the upper computer CAN card), the first communication card and the vehicle-mounted industrial computer are connected by the ISA bus, and the upper computer subsystem is mainly responsible for operations such as saving data, calculating data, and generating reports; The lower computer subsystem consists of an embedded industrial computer (which is based on the IEEE P996.1 compatible PC embedded module standard, commonly known as PC104 industrial computer), an AD acquisition card (responsible for collecting sensor signals, and the card adopts the PC104 bus standard), and a second communication card (the CAN card of the lower computer is responsible for communicating with the upper computer and transmitt...

Embodiment 2

[0047] As shown in Figure 1-2 and Figure 4-2, a road section information collection device is composed of an upper computer subsystem and a lower computer subsystem. The upper computer subsystem consists of a vehicle-mounted industrial computer (also called an upper computer), the first card (upper computer CAN card), photoelectric encoder (used to measure the speed of the vehicle, and its pulse signal is sent to the counting card), counting card (generate interrupt signal according to the pulse signal of the photoelectric encoder, and control the AD acquisition card), the first communication card It is connected with the vehicle-mounted industrial computer by ISA bus, the counting card is connected with the vehicle-mounted industrial computer by ISA bus, and the photoelectric encoder is connected with the counting card by shielded twisted pair. The upper computer subsystem is mainly responsible for operations such as saving data, calculating data and generating reports; The co...

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Abstract

An information collecting device of road section is prepared as connecting the first communication card (FCC) to vehicle industrial control computer by ISA bus; connecting the second communication card, AD collection card and counting card separately to embedded industrial control computer by PC-104 bus; connecting photoelectric coder to counting card by shielded twisted-pair wire; connecting ultrasonic transducer, laser transducer and acceleration transducer to AD collection card by shielded twisted-pair wire; connecting low-level computer subsystem to FCC of up-level computer subsystem by CAN bus through the second communication card.

Description

technical field [0001] The invention relates to an automatic and accurate road section information collection device controlled by vehicle running speed, in particular to an integrated measurement device for measuring road surface rutting and smoothness parameters. Background technique [0002] At present, American ICC Company, South Dakota DOT, Australian ARRB, etc. can all produce fast and reliable vehicle-mounted automatic rutting detectors. This type of instrument can perform high-speed and continuous detection, has the advantages of high reliability, safe operation, and does not affect the normal passage of vehicles, and has been widely used abroad. [0003] The automatic road detection vehicle produced by Canada's Roadware Company has multiple functions. Its rutting test is based on the principle of ultrasonic reflected wave ranging. Its characteristics are as follows: [0004] 1) There are a large number of sensor probes, a total of 37 probes, of which 19 are insta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C23/00G08C19/00G08C19/16G01C7/02G01C7/04
Inventor 严新平陈先桥初秀民陈明昭吕植勇陶静峰郝静涛汪军
Owner WUHAN UNIV OF TECH
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