CN2625902Y - Novel roadside automobile velocimeter - Google Patents
Novel roadside automobile velocimeter Download PDFInfo
- Publication number
- CN2625902Y CN2625902Y CN 03221710 CN03221710U CN2625902Y CN 2625902 Y CN2625902 Y CN 2625902Y CN 03221710 CN03221710 CN 03221710 CN 03221710 U CN03221710 U CN 03221710U CN 2625902 Y CN2625902 Y CN 2625902Y
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- photodetector
- road
- laser
- limit
- vehicle speed
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- 230000008054 signal transmission Effects 0.000 abstract 1
- 230000001133 acceleration Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model discloses a novel way limit automobile speed tester, including light emitting source, photoelectric detector, time base circuit, computer control system sets up two speculums at one side interval of road, and at the opposite side of road, the interval correspondence sets up two groups light emitting source and photoelectric detector, and the light that light emitting source sent is received by photoelectric detector after the opposite mirror reflection, and photoelectric detector is to time base circuit with signal transmission, calculates by computer control system at last. The utility model discloses the adjustment light path is convenient, and it is stable, succinct to test the speed, simple structure, safe and reliable.
Description
Technical field
The utility model relates to a kind of automobile driving speed and acceleration measurement device.
Background technology
Limit, the road measuring vehicle speed instrument of prior art is by LASER Light Source, photodetector, and time base circuit, computer control system are formed.LASER Light Source and photodetector respectively have three, be respectively in road two sides at interval, LASER Light Source is sent the photodetector reception of laser by the opposite, when having automobile to pass through in the road, successively block the laser that sends from LASER Light Source three times, photodetector does not receive laser, promptly transmit a signal to time base circuit, and then definite automobile blocks the time interval of laser for three times, in conjunction with the spacing distance between two photodetectors, can calculate the average velocity of automobile by this highway section.
This instrument has following shortcoming: 1, adopt three groups of Laser emission and receiving trap to measure car speed, increased instability; 2, the light path adjustment of three groups of Laser emission and receiving trap has bothered much than the light path adjustment of two groups of Laser emission and receiving trap; 3, LASER Light Source and photodetector apportion road two sides are changed battery or are carried out the light path timing, and operating personnel need pass road, go to adjust to the opposite, have increased danger.
The utility model content
The purpose of this utility model is the above-mentioned shortcoming that overcomes existing measuring vehicle speed instrument, and LASER Light Source and photodetector are arranged on the same side of road, and a kind of novel motorway limit knotmeter is provided.
The technical solution of the utility model is as follows:
Limit, novel road measuring vehicle speed instrument, include illuminating source, photodetector, time base circuit, computer control system, it is characterized in that two catoptrons being set at interval in a side of road, at the opposite side of road, correspondence is provided with two groups of illuminating sources and photodetector at interval, and the light that illuminating source sends is received by photodetector after the mirror reflects of opposite.
Catoptron and illuminating source, photodetector are installed in respectively on the stripe board on road two limits.
Every group of illuminating source, the adjacent setting of photodetector are positioned at the right opposite of catoptron.
Distance between the catoptron is 1 meter.
Illuminating source is a laser instrument, and laser instrument one side has luminotron.
The laser that LASER Light Source is sent is received by photodetector after by mirror reflects, and photodetector transfers signals to time base circuit, is calculated by computer control system at last.Luminotron is used for debugging and state indication.
The process of the utility model measured automobiles speed is as follows:
Speed equals 2 distances divided by the time of passing through:
V＝L/T
In measuring the acceleration process, unknown data has: vehicle commander S; Speed v 0 through first group of catoptron, laser instrument, photelectric receiver; Speed v 1 through second group of catoptron, laser instrument, photelectric receiver; Can in the hope of data have: automobile block first the bundle laser time (t1); Block the time t2 of the second bundle laser; By these two groups of catoptrons, laser instrument, the used time T of photelectric receiver; Distance L between two groups of catoptrons, laser instrument, the photelectric receiver.By these data, can obtain system of equations:
L＝v0*T+A*T*T/2
S＝v0*t1+A*t1*t1/2
S＝(v0+A*T)*t2+A*t2*t2/2
Just can obtain the A that asked by this system of equations.
Advantage of the present utility model:
1, will test the speed by three groups of Laser emission, receiving traps, and change two groups of Laser emission, receiving traps into and test the speed, it is stable more, succinct to test the speed.
2, the laser direct-injection type is received, change the laser-bounce formula into and receive, make and adjust light path and make things convenient in the emission of LASER Light Source and the same side that is received in of photodetector.
3, LASER Light Source and photodetector are arranged on the same side, and luminotron power supply and photodetector power supply are finished by a plank.
Therefore, obtain by the contrast test with existing knotmeter, it is simpler that novel knotmeter has structure, more reasonable, safer, more stable.
Description of drawings
Accompanying drawing is the utility model structural representation.
Embodiment
Referring to accompanying drawing, the utility model is provided with two catoptrons 1,2 at interval in a side of road, and the distance between the catoptron 1,2 is 1 meter.At the opposite side of road, two reflective mirror 1,2 right opposites are provided with two groups of infrared lasers 3,4 and photodetector 5,6 at interval, and the light that infrared laser 3 sends is received by photodetector 5 after 1 reflection of opposite catoptron; The light that infrared laser 4 sends is received by photodetector 6 after 2 reflections of opposite catoptron.Catoptron 1,2 is installed on the stripe board 7 of road one side, infrared laser 3,4, and photodetector 5,6 is installed on the stripe board 8 of road opposite side.Every group of infrared laser, the adjacent setting of photodetector, infrared laser 3 one sides have luminotron 9, and infrared laser 4 one sides have luminotron 10.Photodetector connects time base circuit 11, and time base circuit 11 and calculating motor-driven 12 connect.
When automobile 13 passes through road, successively block the laser that infrared laser 3,4 sends, make electric explorer 5,6 issue a signal to time base circuit 11, computing machine 12 calculates the speed and the acceleration of automobile 13 by setup program.
Claims (5)
1, limit, novel road measuring vehicle speed instrument, include illuminating source, photodetector, time base circuit, computer control system, it is characterized in that two catoptrons being set at interval in a side of road, at the opposite side of road, correspondence is provided with two groups of illuminating sources and photodetector at interval, and the light that illuminating source sends is received by photodetector after the mirror reflects of opposite.
2, limit, novel road according to claim 1 measuring vehicle speed instrument is characterized in that catoptron and illuminating source, photodetector are installed in respectively on the stripe board on road two limits.
3, limit, novel road according to claim 1 measuring vehicle speed instrument is characterized in that every group of illuminating source, the adjacent setting of photodetector, is positioned at the right opposite of catoptron.
4, limit, novel road according to claim 1 measuring vehicle speed instrument is characterized in that the distance between the catoptron is 1 meter.
5, limit, novel road according to claim 1 measuring vehicle speed instrument is characterized in that illuminating source is a laser instrument, and laser instrument one side has luminotron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221710 CN2625902Y (en) | 2003-05-08 | 2003-05-08 | Novel roadside automobile velocimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221710 CN2625902Y (en) | 2003-05-08 | 2003-05-08 | Novel roadside automobile velocimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2625902Y true CN2625902Y (en) | 2004-07-14 |
Family
ID=34244810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03221710 Expired - Fee Related CN2625902Y (en) | 2003-05-08 | 2003-05-08 | Novel roadside automobile velocimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2625902Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100378459C (en) * | 2004-12-09 | 2008-04-02 | 清华大学深圳研究生院 | Road vehicle running speed detecting method and device |
| CN103323259A (en) * | 2013-05-31 | 2013-09-25 | 浙江工业大学 | Automobile starting and braking performance testing device based on grating detection |
| CN103323260A (en) * | 2013-05-31 | 2013-09-25 | 浙江工业大学 | Brake performance testing device of bicycle or moped |
| CN103776684A (en) * | 2014-01-22 | 2014-05-07 | 南京理工大学 | Speed testing device for Hopkinson test |
| CN104575175A (en) * | 2014-12-24 | 2015-04-29 | 惠州学院 | Laser timing guide rail |
| CN104575177A (en) * | 2014-12-24 | 2015-04-29 | 惠州学院 | Laser timing guide rail |
| CN104599561A (en) * | 2014-12-24 | 2015-05-06 | 惠州学院 | Laser timing guide rail |
| CN110596119A (en) * | 2019-09-03 | 2019-12-20 | 佛山科学技术学院 | Circuit board component detection device |
| CN112557693A (en) * | 2020-12-04 | 2021-03-26 | 安徽安诚泽宇环境科技有限公司 | Motor vehicle running speed and acceleration measuring system based on photoelectric detection |
-
2003
- 2003-05-08 CN CN 03221710 patent/CN2625902Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100378459C (en) * | 2004-12-09 | 2008-04-02 | 清华大学深圳研究生院 | Road vehicle running speed detecting method and device |
| CN103323259A (en) * | 2013-05-31 | 2013-09-25 | 浙江工业大学 | Automobile starting and braking performance testing device based on grating detection |
| CN103323260A (en) * | 2013-05-31 | 2013-09-25 | 浙江工业大学 | Brake performance testing device of bicycle or moped |
| CN103323259B (en) * | 2013-05-31 | 2016-03-30 | 浙江工业大学 | A kind of vehicle launch braking performance tester based on Grating examinations |
| CN103323260B (en) * | 2013-05-31 | 2017-02-08 | 浙江工业大学 | Brake performance testing device of bicycle or moped |
| CN103776684A (en) * | 2014-01-22 | 2014-05-07 | 南京理工大学 | Speed testing device for Hopkinson test |
| CN104575175A (en) * | 2014-12-24 | 2015-04-29 | 惠州学院 | Laser timing guide rail |
| CN104575177A (en) * | 2014-12-24 | 2015-04-29 | 惠州学院 | Laser timing guide rail |
| CN104599561A (en) * | 2014-12-24 | 2015-05-06 | 惠州学院 | Laser timing guide rail |
| CN110596119A (en) * | 2019-09-03 | 2019-12-20 | 佛山科学技术学院 | Circuit board component detection device |
| CN112557693A (en) * | 2020-12-04 | 2021-03-26 | 安徽安诚泽宇环境科技有限公司 | Motor vehicle running speed and acceleration measuring system based on photoelectric detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |