CN102110370A - Method for measuring vehicle speed by utilizing equidistant camera of vidicon - Google Patents
Method for measuring vehicle speed by utilizing equidistant camera of vidicon Download PDFInfo
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- CN102110370A CN102110370A CN2011100465490A CN201110046549A CN102110370A CN 102110370 A CN102110370 A CN 102110370A CN 2011100465490 A CN2011100465490 A CN 2011100465490A CN 201110046549 A CN201110046549 A CN 201110046549A CN 102110370 A CN102110370 A CN 102110370A
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Abstract
The invention discloses a method for measuring a vehicle speed by utilizing equidistant camera of a vidicon. A wide-angle vidicon vertical to the ground is installed at the position with a certain distance from the ground, and the vehicle driving speed is calculated by utilizing time for a vehicle to pass the road surface distance set by the wide-angle vidicon in the driving process. According to the method, the functions of measuring speed and retaining images are simultaneously achieved by just using one wide-angle vidicon, thereby saving a great quantity of construction cost. In addition, when the wide-angle vidicon fails, the vehicle speed can be immediately stopped to be measure at a speed measuring spot, thus avoiding erroneous judgement, and reducing the occurrence of traffic disputes.
Description
Technical field
The present invention relates to the velocity measuring technique field, particularly a kind of method of utilizing video camera that driving vehicle is tested the speed.
Background technology
High speed development along with highway and automotive engineering, the traffic administration of road is also more and more skillful, and particularly along with development of science and technology, the application of electronic communication management more and more is subjected to people's attention, whether this technology can be monitored in real time to the vehicle that travels, exceed the speed limit to judge vehicle.And requirement must be driven over the speed limit to motor vehicles and be carried out dynamic image and retain in the new traffic law, with as the evidence of enforcing the law.Yet existing speed measuring device adopts the induction detecting element to realize jointly in conjunction with some video cameras mostly, as utilizes radar Doppler wave reflection, infrared induction, ground buried coil etc., can carry out work by together setting up just with video camera.The radar Doppler wave reflection is tested the speed and is adopted the microwave device launched microwave, utilizes it to reflect into line speed and measures.As everyone knows, long-term low dose of microwave has stronger injury effect to human body equally, is unfavorable for building the social development environment of harmony, environment-friendly type so the public arena is supposed the microwave transmitter on a large scale.The infrared induction method need accurately be installed infrared transmitter in the place beyond video camera, and higher to installing and using environmental requirement, investment is also bigger simultaneously.Ground buried coil need cut out the laying installation that coil is carried out in large-area slit on the road surface of finishing of constructing, the damaged condition of road pavement is serious, cold and hot along with the road surface simultaneously, sedimentation changes, ground buried coil can be subjected to very big cutting force and damage, and this coil method can not reuse, and causes the waste of material and the pollution of environment.No matter therefore adopt which kind of sensing element, all can increase the whole cost of equipment, strengthen the difficulty of maintaining.
Chinese patent CN201010175579.7 discloses a kind of method of measuring speed within vehicle interval, this speed-measuring method is by being arranged on the monitor terminal at a certain fixed interval two ends in the road, the time of passing through to vehicle is detected, thereby calculates the average velocity of vehicle in this section interval.The drawback of this method is: what it was measured is an average velocity, and can not be to detecting than the car speed in the short distance; And this kind speed-measuring method tests the speed each time all needs at least two monitor terminals, not only has huge working pressure setting up of range-rate measuring terminal, and also is a greatly input for construction cost; In addition, when one of them monitor terminal broke down, so measured speed just double mistake can occur, caused the generation of misjudgment phenomenon.
Summary of the invention
The technical matters that the present invention solves provides a kind ofly can carry out short distance to vehicle and test the speed, do not have misjudgment phenomenon in real time and take place, and can reduce the method for construction cost.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
The vehicle speed measuring method that utilizes video camera equidistantly to take pictures may further comprise the steps:
A., monitor terminal perpendicular to ground is set above the required road that tests the speed;
B. according to the vertical height of monitor terminal apart from ground, and the angular field of view of monitor terminal, calculate the measured distance of monitor terminal;
C. in conjunction with running time and the measuring distance of vehicle in measured distance, calculate the speed of vehicle in this segment distance;
Monitor terminal among the described step a is to be erected at road top to be provided with, to be used for the vehicle in angular field of view of travelling is dynamically taken a photograph and the wide-angle imaging machine of velocity survey perpendicular to ground, and each speed measuring point only is provided with a monitor terminal.
Owing to adopted above technical scheme, the invention technological progress is:
The present invention only need set the height of a wide-angle imaging machine apart from ground exactly, can realize mensuration to Vehicle Speed, and can arbitrarily be provided with according to the specific requirement of different speed measuring points, also can not produce and destroy, significantly reduced construction cost ground.When the wide-angle imaging machine broke down, this speed measuring point just stopped the measurement to car speed immediately, avoids the generation of misjudgment phenomenon, has reduced the traffic dispute.The set wide-angle imaging machine of the present invention not only can fix a point to test the speed to dynamic vehicle, can also realize dynamic image retention function; The wide-angle imaging machine also can be stored and analysis and judgement measurement result except having these two functions, has only when speed surpasses setting speed and just can give central control system with information transmission, has alleviated the working load of central control system greatly.
Wide-angle imaging machine used in the present invention can not produce any electromagnetic radiation when working, and can not work the mischief to the person, is applicable to the construction of environment-friendly type society.
Description of drawings
Fig. 1 is the synoptic diagram of the embodiment of the invention 1;
Fig. 2 is the vertical view of the embodiment of the invention 2.
Wherein: 1. wide-angle imaging machine, 2. support, 3. vehicle, 4. angular field of view.
Embodiment
Below in conjunction with specific embodiments and the drawings the present invention is further elaborated.
The vehicle speed measuring method that utilizes video camera equidistantly to take pictures is applied on highway or the ordinary road driving vehicle be tested the speed.As shown in Figure 1, vertically set up a wide-angle imaging machine 1 in a side of the required speed measuring point of road by support 2.The wide-angle imaging machine according to its angular field of view 4 and the vertical height H overhead that sets up, calculates the measuring distance S of measurement point when setting up.
When vehicle 3 enters the angular field of view of wide-angle imaging machine certainly, the t1 that picks up counting, when leaving angular field of view, timing ends up being t2, and the mistiming in this segment distance is Δ t=t2-t1, calculates the speed v=S/ Δ t of measurement point vehicle ' at last.When travel speed surpasses setting speed, give central control system with information transmission, carry out penalty and handle.
The wide-angle imaging machine carries out image to dynamic vehicle and retains when vehicle is tested the speed.
The difference of present embodiment and embodiment 1 is: the present invention is applied to the crossroad traffick is tested the speed and the image retention, and the position of wide-angle imaging machine is positioned at the center of crossroad, and its angular field of view is radiated whole crossroad.When current vehicle occurred violating the regulations or exceed the speed limit phenomenon, the wide-angle imaging machine was promptly taken pictures to vehicles peccancy, and is transferred to central control system.
Claims (1)
1. the vehicle speed measuring method that utilizes video camera equidistantly to take pictures may further comprise the steps:
A., monitor terminal perpendicular to ground is set above the required road that tests the speed;
B. according to the vertical height of monitor terminal apart from ground, and the angular field of view of monitor terminal, calculate the measured distance of monitor terminal;
C. in conjunction with running time and the measuring distance of vehicle in measured distance, calculate the speed of vehicle in this segment distance;
It is characterized in that: the monitor terminal among the step a is to be erected at road top to be provided with, to be used for the vehicle in angular field of view of travelling is dynamically taken a photograph and the wide-angle imaging machine of velocity survey perpendicular to ground, and each speed measuring point only is provided with a monitor terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100465490A CN102110370A (en) | 2011-02-28 | 2011-02-28 | Method for measuring vehicle speed by utilizing equidistant camera of vidicon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100465490A CN102110370A (en) | 2011-02-28 | 2011-02-28 | Method for measuring vehicle speed by utilizing equidistant camera of vidicon |
Publications (1)
| Publication Number | Publication Date |
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| CN102110370A true CN102110370A (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100465490A Pending CN102110370A (en) | 2011-02-28 | 2011-02-28 | Method for measuring vehicle speed by utilizing equidistant camera of vidicon |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198666A (en) * | 2013-03-19 | 2013-07-10 | 东南大学 | Highway traffic stream space average speed observation method based on fixed wing model airplane |
| US20170122762A1 (en) * | 2014-06-13 | 2017-05-04 | Tomtom International B.V. | Methods and systems for generating route data |
| CN106797543A (en) * | 2014-08-20 | 2017-05-31 | 三星电子株式会社 | Data sharing method and the electronic equipment for it |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1123592A (en) * | 1997-07-07 | 1999-01-29 | Nissin Electric Co Ltd | Real time vehicle speed measuring device |
| CN2658868Y (en) * | 2003-11-20 | 2004-11-24 | 郝振军 | Road vehicle speed monitoring device |
| WO2007148870A1 (en) * | 2006-06-21 | 2007-12-27 | Lux Technology Inc. | Apparatus for detect overspeed vehicle |
| CN101887330A (en) * | 2010-07-13 | 2010-11-17 | 世大光电(深圳)有限公司 | Electronic equipment as well as single-camera object-positioning device and method thereof |
| CN101894471A (en) * | 2010-05-13 | 2010-11-24 | 安徽蓝盾光电子股份有限公司 | Vehicle velocity measurement method with adjustable velocity measurement interval distance |
-
2011
- 2011-02-28 CN CN2011100465490A patent/CN102110370A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1123592A (en) * | 1997-07-07 | 1999-01-29 | Nissin Electric Co Ltd | Real time vehicle speed measuring device |
| CN2658868Y (en) * | 2003-11-20 | 2004-11-24 | 郝振军 | Road vehicle speed monitoring device |
| WO2007148870A1 (en) * | 2006-06-21 | 2007-12-27 | Lux Technology Inc. | Apparatus for detect overspeed vehicle |
| CN101894471A (en) * | 2010-05-13 | 2010-11-24 | 安徽蓝盾光电子股份有限公司 | Vehicle velocity measurement method with adjustable velocity measurement interval distance |
| CN101887330A (en) * | 2010-07-13 | 2010-11-17 | 世大光电(深圳)有限公司 | Electronic equipment as well as single-camera object-positioning device and method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198666A (en) * | 2013-03-19 | 2013-07-10 | 东南大学 | Highway traffic stream space average speed observation method based on fixed wing model airplane |
| CN103198666B (en) * | 2013-03-19 | 2015-03-04 | 东南大学 | Highway traffic stream space average speed observation method based on fixed wing model airplane |
| US20170122762A1 (en) * | 2014-06-13 | 2017-05-04 | Tomtom International B.V. | Methods and systems for generating route data |
| US10768006B2 (en) * | 2014-06-13 | 2020-09-08 | Tomtom Global Content B.V. | Methods and systems for generating route data |
| CN106797543A (en) * | 2014-08-20 | 2017-05-31 | 三星电子株式会社 | Data sharing method and the electronic equipment for it |
| CN106797543B (en) * | 2014-08-20 | 2020-08-28 | 三星电子株式会社 | Data sharing method and electronic device therefor |
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Application publication date: 20110629 |