CN104122230A - Road condition telemeter - Google Patents
Road condition telemeter Download PDFInfo
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- CN104122230A CN104122230A CN201410363051.0A CN201410363051A CN104122230A CN 104122230 A CN104122230 A CN 104122230A CN 201410363051 A CN201410363051 A CN 201410363051A CN 104122230 A CN104122230 A CN 104122230A
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- road
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- ice
- laser
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Abstract
The invention aims to provide a road condition telemeter for testing the situations that wet and slippery roads caused by accumulated water, ice or snow and the like affect the traffic. The road condition telemeter comprises a sensor and a handling device connected with the sensor, wherein the handling device distinguishes the state of a road according to the magnitude of energy of received laser, and the sensor consists of a laser transmitting device and a laser receiving device. The laser receiving device is connected with the handling device. The sensor distinguishes the state of the road by measuring the magnitude of the energy of the received laser based on the working principle of measurement of a spectrophotometer that the energy of reflected laser signals is different if the state of the road (snow, ice, water or dry asphalt road) is different. The thickness of the accumulated water, ice or snow, the slippery coefficient of the road and the coverage of ice and snow are measured through the sensor.
Description
Technical field
The invention belongs to road traffic facility technical field.
Background technology
At present traffic monitoring is generally all adopted to the way of camera head monitor, it can only realize the candid photograph to traffic violation, for the detection of road situation, cannot complete.Along with vehicle increase and high-grade highway more and more, for high-grade highway, management has proposed more and more higher requirement.
Surface gathered water, accumulated ice, accumulated snow etc. cause the situations, particularly winter such as road surface is wet and slippery, and road surface accumulated ice, accumulated snow can not melt in time, when Vehicle Driving Cycle, cause vehicle brake braking distance to become large, cause generation vehicle rear-end collision, the problem that the pernicious traffic hazard such as shunt into one another takes place frequently.Existing traffic sign display board, cannot be according to pavement behavior, and real time modifying speed(-)limit sign display board causes driver not adjust in time the speed of a motor vehicle according to road conditions, to road speed is controlled within the scope of safety traffic.My vehicle supervision department does not have to realize the equipment of the detection of road pavement ponding, accumulated ice, Snow Thickness, the wet and slippery coefficient in road surface and ice and snow on road surfaces coverage rate at present, cannot be in real time according to pavement behavior, automatically monitor pavement behavior, automatic alarm, real time modifying speed(-)limit sign display board.
Summary of the invention
The object of the invention is to provide a kind of pavement behavior remote measurement tester, to test surface gathered water, accumulated ice, accumulated snow etc., causes the road surface situation that affects traffic such as wet and slippery.
Specifically, pavement behavior remote measurement tester, it is characterized in that comprising a sensor and the treating apparatus being connected with sensor, treating apparatus is differentiated pavement state according to the size that receives the energy of laser, and described sensor consists of a laser beam emitting device and laser receiver.Laser receiver is connected with treating apparatus simultaneously.
Sensor of the present invention is based on Spectrophotometric principle of work, if pavement state (snow, ice, water, dry bituminous pavement) difference, the energy of the laser signal reflecting is so also different, and the size that receives the energy of laser by measurement is differentiated pavement state.By sensor by the ponding of measuring, accumulated ice, Snow Thickness, the wet and slippery coefficient in road surface and snow and ice cover rate, transfer to background process equipment, can convert out speed limit now according to national road related specifications, simultaneous display is on LED electronic traffic sign display board.Vehicle supervision department can realize the detection of road pavement ponding, accumulated ice, Snow Thickness, the wet and slippery coefficient in road surface and ice and snow on road surfaces coverage rate, in real time according to pavement behavior, automatically monitors pavement behavior, automatic alarm, real time modifying speed(-)limit sign display board.
Accompanying drawing explanation
Fig. 1 is Fundamentals of Sensors schematic diagram of the present invention.
Fig. 2 is that the present invention is for the signal strength map reflecting of pavement detection.
Embodiment
As Fig. 1 has provided the embodiment of pavement behavior remote measurement tester of the present invention.It comprises a sensor and the treating apparatus being connected with sensor, treating apparatus is differentiated pavement state according to the size that receives the energy of laser, and described sensor consists of a laser beam emitting device and laser receiver, laser receiver is connected with treating apparatus simultaneously.
In the present invention the laser beam emitting device that adopts and laser receiver be existing product, processor different road surface reflection strength under the light of different wave length is different, but change, be not quite similar again, from the otherness of reflection strength, can infer the principle of the kind of pavement behavior, can calculate the thickness of road snow, ponding, accumulated ice.
Fig. 2 is that a kind of image of the present invention and laser combined type remote sensing pavement monitoring automatic alarm system are for the signal strength map reflecting of pavement detection; In figure, know, different pavement behavior reflection strength under the light of different wave length is different.
From Fig. 2, on the line of 1320nm, can distinguish significantly pavement state is dry and snow or water and ice, and from figure, on the line of 1560nm, can distinguish significantly road surface is dry or other state, from figure, on the line of 1700nm, can distinguish significantly water outlet and ice; From the line of 1320nm, also can distinguish the thickness of moisture film, particularly 0～2mm in addition.As a kind of embodiment, the present invention is in order to tell pavement state, by 1320nm, and 1560nm, reflection coefficient under tri-kinds of specific wavelengths of 1700nm is measured fully, contrasts, is concluded, thus the situations such as doing that realization is real-time, precise monitoring shows road surface is wet, water, snow, ice.
Claims (1)
1. pavement behavior remote measurement tester, it is characterized in that comprising a sensor and the treating apparatus being connected with sensor, treating apparatus is differentiated pavement state according to the size that receives the energy of laser, and described sensor consists of a laser beam emitting device and laser receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410363051.0A CN104122230A (en) | 2014-07-28 | 2014-07-28 | Road condition telemeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410363051.0A CN104122230A (en) | 2014-07-28 | 2014-07-28 | Road condition telemeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104122230A true CN104122230A (en) | 2014-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410363051.0A Pending CN104122230A (en) | 2014-07-28 | 2014-07-28 | Road condition telemeter |
Country Status (1)
| Country | Link |
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| CN (1) | CN104122230A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564296A (en) * | 2016-01-06 | 2016-05-11 | 京东方科技集团股份有限公司 | Illumination device and illumination method |
| CN106781231A (en) * | 2017-01-25 | 2017-05-31 | 西安纳兴电子科技有限公司 | Autonomous type icy road accumulated snow ablation system and method |
| CN109916318A (en) * | 2019-03-19 | 2019-06-21 | 武汉理工大学 | Portable ice and snow sensing device for road face |
| CN110146897A (en) * | 2019-05-24 | 2019-08-20 | 北京海益同展信息科技有限公司 | Water detection device and robot |
-
2014
- 2014-07-28 CN CN201410363051.0A patent/CN104122230A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564296A (en) * | 2016-01-06 | 2016-05-11 | 京东方科技集团股份有限公司 | Illumination device and illumination method |
| CN106781231A (en) * | 2017-01-25 | 2017-05-31 | 西安纳兴电子科技有限公司 | Autonomous type icy road accumulated snow ablation system and method |
| CN109916318A (en) * | 2019-03-19 | 2019-06-21 | 武汉理工大学 | Portable ice and snow sensing device for road face |
| CN110146897A (en) * | 2019-05-24 | 2019-08-20 | 北京海益同展信息科技有限公司 | Water detection device and robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141029 |