CN203132515U - Vehicle-mounted road surface laser evenness detection device - Google Patents
Vehicle-mounted road surface laser evenness detection device Download PDFInfo
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- CN203132515U CN203132515U CN 201320147607 CN201320147607U CN203132515U CN 203132515 U CN203132515 U CN 203132515U CN 201320147607 CN201320147607 CN 201320147607 CN 201320147607 U CN201320147607 U CN 201320147607U CN 203132515 U CN203132515 U CN 203132515U
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Abstract
The utility model discloses a vehicle-mounted road surface laser evenness detection device, comprising a portable computer, an evenness detection main control board, a laser vertical displacement distance measuring device, a vertical acceleration acquisition device and a DMI transverse displacement detecting device, wherein the evenness detection main control board is respectively connected with the portable computer, the laser vertical displacement distance measuring device, the vertical acceleration acquisition device and the DMI transverse displacement detecting device. Compared with the method adopting an industrial control computer, the vehicle-mounted road surface laser evenness detection device has the advantages of simple structure, small size, low cost and easy maintenance; and the vehicle-mounted road surface laser evenness detection device is embedded with a high-performance 32 bit processor chip which is direct interconnected with other components of the device, and has convenient and reliable structure.
Description
Technical field
The utility model belongs to the Road Detection field, particularly a kind of vehicle-mounted road surface laser evenness pick-up unit.
Background technology
Surface evenness is an important indicator during highway and urban road surfaces evaluation and pavement construction are checked and accepted, and has directly reflected the comfort level that vehicle travels, security and the use state on road surface.The detection of surface evenness can provide important information for the decision maker, the decision maker can be made for maintenance, the maintenance on road surface and overhauling etc. optimize decision-making.On the other hand, the detection of surface evenness can provide the information of pavement construction quality and the objective indicator of grade estimation exactly.To this, accurately the fast detecting surface evenness is significant.Vehicle-mounted road surface laser evenness detection system is fast because of its detection speed, and the accuracy of detection height is easy to use, more and more becomes the important way that detects surface evenness.
The mode that present most vehicle-mounted road surface laser evenness detection system all adopts industrial computer, data collecting card and sensor to combine is carried out surface evenness and is detected.This mode complex structure, volume is bigger, and cost is higher, and interpolation or change function are comparatively complicated, use convenient, flexible inadequately.
The utility model content
The purpose of this utility model is to provide a kind of structure convenient and reliable, and volume is little, and cost is low, is easy to the vehicle-mounted road surface laser evenness pick-up unit of maintenance upgrade.
The technical solution that realizes the utility model purpose is:
A kind of vehicle-mounted road surface laser evenness pick-up unit, comprise that portable computer, flatness detect master control borad, laser vertical displacement distance measuring equipment, normal acceleration harvester and DMI transversal displacement pick-up unit, wherein flatness detection master control borad is connected with portable computer, laser vertical displacement distance measuring equipment, normal acceleration harvester and DMI transversal displacement pick-up unit respectively.
The utility model compared with prior art, its remarkable advantage:
(1) the utility model is compared the mode that adopts industrial computer, and simple in structure, volume is little, and cost is low, is easy to safeguard.
(2) the embedded high-performance 32 bit processor chips of the utility model, with other parts direct interconnection of this device, structure is convenient and reliable.
(3) the utility model can adopt multiple transmission mode, the convenient use.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is one-piece construction synoptic diagram of the present utility model.
Fig. 2 is the structural representation that flatness of the present utility model detects master control borad.
Embodiment
A kind of vehicle-mounted road surface of the utility model laser evenness pick-up unit, comprise that portable computer, flatness detect master control borad, laser vertical displacement distance measuring equipment, normal acceleration harvester and DMI transversal displacement pick-up unit, wherein flatness detection master control borad is connected with portable computer, laser vertical displacement distance measuring equipment, normal acceleration harvester and DMI transversal displacement pick-up unit respectively.
Laser vertical displacement distance measuring equipment is responsible for gathering current perpendicular displacement information, and when Uneven road, current perpendicular displacement information can characterize the Uneven road signal.
The influence that the normal acceleration harvester causes the current perpendicular displacement information that laser vertical displacement distance measuring equipment collects for revising owing to body oscillating.
DMI transversal displacement pick-up unit is for detection of the operating range when vehicle in front, and the every 25cm of regulation detects the once requirement of current surface evenness information in the standard to satisfy, and calculates current vehicle speed according to operating range and temporal information.
It is the flatness detection master control borad of main control chip for adopting based on high-performance 32 bit processor chip STM32 that flatness detects master control borad, comprise power transfer module, 32 chip STM32 of high-performance, gather signal and amplify follower, 16 high speed analog-to-digital conversion modules, pulse counter module, WiFi/USB telecommunication circuit, SD card memory module, EEPROM memory module and relay control module.Can gather surface evenness information in real time and be transferred to by the WiFi/USB telecommunication circuit and carry out Treatment Analysis in the portable computer.
Portable computer is positioned in the automobile, detects master control borad by WiFi or USB cable with flatness and is connected, and Windows operating system and flatness data collection analysis software wherein are installed.During work, flatness data collection analysis software obtains digitized current surface evenness information, and carry out real-time curve demonstration and data and store, and can use surface evenness analytic function in the flatness data collection analysis software, obtain road evenness evaluation indexes such as international roughness index IRI, and have the function of printing reports.
Below in conjunction with drawings and Examples the utility model is further specified.
In Fig. 1, flatness detects master control borad and comprises as the lower part:
Power transfer module, master control borad provide direct current 12V, 24V, 5V and four kinds of power supplys of 3.3V, and the input power supply is vehicular power-bottle 12V, through isolating step-up/step-down circuit, output direct current 12V, 24V, 5V and four kinds of power supplys of 3.3V;
32 chip STM32 of high-performance: adopt STM32F107 in the STM32 family chip as main control chip, and build relevant minimum system circuit;
Gather signal and amplify follower: the output signal of laser vertical displacement distance measuring equipment and normal acceleration harvester is through the I-V change-over circuit and amplify the voltage signal that follower circuit converts 0-5V to;
16 high speed analog-to-digital conversion modules: the 0-5V voltage signal of gathering the output of signal amplification follower circuit is transformed into the digital signal that characterizes perpendicular displacement information and acceleration information by the AD7606 modulus conversion chip and is input to STM32F107;
Pulse counter module: gather the pulse signal of rotary encoder output to the step-by-step counting unit of STM32F107 by voltage matches and isolation mu balanced circuit, finish the detection of vehicle operating range;
The WiFi/USB telecommunication circuit: flatness detects master control borad two kinds of communications modes is provided, WiFi communication and USB wire communication mode, and transmission is flexibly reliable.
Other functional module: SD card memory module, EEPROM memory module and relay control module.
Flatness detects master control borad, controlled by high-performance 32 bit processor chip STM32F107, by automobile mounted storage battery power supply, gather surface evenness information in real time by laser vertical displacement distance measuring equipment, normal acceleration harvester and DMI transversal displacement pick-up unit, handle the back through internal circuit and send digitized evenness of road surface degrees of data to portable computer by USB or WiFi mode.
Portable computer is positioned in the automobile, detects master control borad by USB or WiFi mode with flatness and is connected, and Windows operating system and flatness data collection analysis software wherein are installed.
Claims (3)
1. vehicle-mounted road surface laser evenness pick-up unit, it is characterized in that: comprise that portable computer, flatness detect master control borad, laser vertical displacement distance measuring equipment, normal acceleration harvester and DMI transversal displacement pick-up unit, wherein flatness detection master control borad is connected with portable computer, laser vertical displacement distance measuring equipment, normal acceleration harvester and DMI transversal displacement pick-up unit respectively.
2. a kind of vehicle-mounted road surface according to claim 1 laser evenness pick-up unit, it is characterized in that: it is the flatness detection master control borad of main control chip for adopting based on high-performance 32 bit processor chip STM32 that described flatness detects master control borad, comprise power transfer module, 32 chip STM32 of high-performance, gather signal and amplify follower, 16 high speed analog-to-digital conversion modules, pulse counter module, the WiFi/USB telecommunication circuit, SD card memory module, EEPROM memory module and relay control module.
3. a kind of vehicle-mounted road surface according to claim 1 laser evenness pick-up unit is characterized in that: described flatness detects between master control borad and portable computer, laser vertical displacement distance measuring equipment, normal acceleration harvester and the DMI transversal displacement pick-up unit employing WiFi or USB is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320147607 CN203132515U (en) | 2013-03-28 | 2013-03-28 | Vehicle-mounted road surface laser evenness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320147607 CN203132515U (en) | 2013-03-28 | 2013-03-28 | Vehicle-mounted road surface laser evenness detection device |
Publications (1)
| Publication Number | Publication Date |
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| CN203132515U true CN203132515U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320147607 Expired - Fee Related CN203132515U (en) | 2013-03-28 | 2013-03-28 | Vehicle-mounted road surface laser evenness detection device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066959A (en) * | 2015-07-24 | 2015-11-18 | 江苏苏科畅联科技有限公司 | Pavement vertical section elevation information acquisition method |
| CN105185160A (en) * | 2015-10-09 | 2015-12-23 | 卢庆港 | Pavement detection system and detection method |
| CN107621239A (en) * | 2017-09-25 | 2018-01-23 | 江苏大学 | A kind of vehicular road surface bumps monitoring method based on multigroup laser rays |
| CN109695196A (en) * | 2018-12-19 | 2019-04-30 | 安徽省骏腾工程试验检测有限公司 | A kind of road surface laser profilometer |
| CN109881568A (en) * | 2019-01-29 | 2019-06-14 | 张亚如 | A kind of highroad pavement planeness measuring system |
| CN109959354A (en) * | 2019-04-15 | 2019-07-02 | 深圳市卫飞科技有限公司 | A kind of large scale road surface evenness measuring device and its measurement method |
-
2013
- 2013-03-28 CN CN 201320147607 patent/CN203132515U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066959A (en) * | 2015-07-24 | 2015-11-18 | 江苏苏科畅联科技有限公司 | Pavement vertical section elevation information acquisition method |
| CN105185160A (en) * | 2015-10-09 | 2015-12-23 | 卢庆港 | Pavement detection system and detection method |
| CN105185160B (en) * | 2015-10-09 | 2017-11-24 | 卢庆港 | The pavement detection method that distorted region mobile trend identifies in virtual grid |
| CN107621239A (en) * | 2017-09-25 | 2018-01-23 | 江苏大学 | A kind of vehicular road surface bumps monitoring method based on multigroup laser rays |
| CN107621239B (en) * | 2017-09-25 | 2019-12-31 | 江苏大学 | Vehicle-mounted road surface concave-convex monitoring method based on multiple groups of laser lines |
| CN109695196A (en) * | 2018-12-19 | 2019-04-30 | 安徽省骏腾工程试验检测有限公司 | A kind of road surface laser profilometer |
| CN109881568A (en) * | 2019-01-29 | 2019-06-14 | 张亚如 | A kind of highroad pavement planeness measuring system |
| CN109959354A (en) * | 2019-04-15 | 2019-07-02 | 深圳市卫飞科技有限公司 | A kind of large scale road surface evenness measuring device and its measurement method |
| CN109959354B (en) * | 2019-04-15 | 2020-12-01 | 深圳市卫飞科技有限公司 | Large-scale road surface flatness measuring device and measuring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20180328 |
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| CF01 | Termination of patent right due to non-payment of annual fee |