CN205508143U - Vehicle detecting system - Google Patents
Vehicle detecting system Download PDFInfo
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- CN205508143U CN205508143U CN201620188458.9U CN201620188458U CN205508143U CN 205508143 U CN205508143 U CN 205508143U CN 201620188458 U CN201620188458 U CN 201620188458U CN 205508143 U CN205508143 U CN 205508143U
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Abstract
The utility model discloses a vehicle detecting system, include: the laser emitter of outgoing and the lane direction looks vertically laser ray that traveles of vehicle, it is right the shape of laser ray changes gathers, acquires image information's image acquisition device, and with the image acquisition device links to each other, to gathering image information handles, through the travel image processing device of the parameter information of vehicle of inclined to one side condition sureness of laser ray. The utility model provides a vehicle detecting system fuses visual detector and the correlation technique characteristics that laser detected for this detecting system has good adaptability to the light environment of complicacy, and the operation of image processing such as effectively simplification prospect is cut apart, feature extraction reduces computational complexity, improves the real -time. It is thus clear that this application not only can reduce the difficult problem that conventional video processing need face, can also simplify the video processing process, reduce the amount of calculation, finally improve vehicle test's accuracy, real -time.
Description
Technical field
This utility model relates to traffic control system technical field, particularly relates to a kind of vehicle inspection
Examining system.
Background technology
At present, wagon detector, according to the difference of information gathering mode, can be divided into magnetic frequency to gather
(including induction coil, magnetic, earth magnetism), ripple frequency gathers (include microwave, ultrasound wave, infrared)
And video acquisition three types.What present domestic use was more is induction coil detector, micro-
Ripple radar detector and video detector.
Wherein, induction coil detector has that technology is simple and reliable, cost performance is high, can survey parameter
The advantage that many, accuracy of detection is high, but its installation safeguards that needs suspend traffic, destroy road surface,
Easily damaged by heavy vehicle, pavement preservation, restricted lifetime.Microwave radar detection utensil has whole day
Wait the advantage of stable performance under work, vile weather, can laterally detect multilane, carry out straight
Connect and test the speed.But accuracy of detection declines when road has irony isolation strip, trackside to have barrier,
Installation requirement is high, low to the accuracy of detection of low speed or static target.Video detector can be for handing over
Siphunculus reason provides visual image, separate unit video camera and processor can detect multilane, can hand over
Logical accident detection.But by software and hardware, algorithm restriction greatly, affected greatly by light environment,
Image procossing poor real.Visible, it is limited by the technology limitation of various wagon detector self,
They have the shortcoming being each difficult to overcome.
Along with image procossing and the development of mode identification technology, depend on the video inspection of image procossing
Survey the development trend that device becomes important, but in actual environment, image procossing is by light environment
Impact is relatively big, as deficient exposure, overexposure, exposure inequality, backlight, reflective, shade, block, low
Illumination, misty rain environment, Day-night shift etc., accuracy of detection has much room for improvement.On the other hand, infrared
Road, based on laser distance measuring principle, is done tomography with Fixed Time Interval and sweeps by laser vehicle detector
Retouch, it is achieved vehicle three-dimensional outline is rebuild, and then realizes vehicle detection, vehicle cab recognition function, but
Its algorithm complex is high, equipment cost is high, installation environment requires height, it is difficult to large-scale promotion.
Utility model content
The purpose of this utility model is to provide a kind of vehicle detecting system, it is therefore intended that solve existing
The technology limitation that different vehicle detector is intrinsic, as affected by environment relatively big, accuracy of detection is the highest,
The problem that algorithm complex is high, equipment cost is high.
For solving above-mentioned technical problem, this utility model provides a kind of vehicle detecting system, including:
The generating laser of the laser rays that outgoing is perpendicular with the traveling lane direction of vehicle；To institute
The change of shape stating laser rays is acquired, and obtains the image collecting device of image information；And
It is connected with described image collecting device, the described image information collected is processed, passes through
Whether the deviation situation judgement of described laser rays is blocked and is caused by vehicle process, and determine Travel vehicle
The image processing apparatus of parameter information.
Wherein, described image processing apparatus includes:
In the case of described laser rays is truncated, judge whether to block by car by deviation situation
The judge module that process causes；
Judge to block by vehicle in time causing, record the note by the time of described driving vehicle
Record module；
And judge to block by vehicle in time causing, the number of described driving vehicle is united
The counting module of meter.
Alternatively, described image processing apparatus also includes:
The change of shape of described laser rays is analyzed, according to range of triangle principle to described row
The profile sailing vehicle carries out three-dimensional reconstruction, carries out the identification module of vehicle cab recognition.
Alternatively, described generating laser is two generating lasers of interval predeterminable range, institute
State image collector to be set to two and respectively the shape of the laser rays of described laser transmitter projects is become
Change the harvester being acquired.
Alternatively, described image processing apparatus also includes:
The image information gathered respectively by two described image collecting devices, determines described traveling
Vehicle by two described generating lasers by the time, calculate the traveling of described driving vehicle
The speed measuring module of speed.
Alternatively, also include:
By described parameter information is calculated, determine the wagon flow comprising described traveling lane
Amount, occupation rate, the detection module of traffic parameter information of motorcade length.
Alternatively, described generating laser is infrared linear generating laser.
Alternatively, described image collector is set to video camera.
Alternatively, described video camera is additionally provided with the filter corresponding with described generating laser wavelength
Mating plate.
Alternatively, described video camera is for using infrared-sensitive sensitive chip and global shutter camera lens
Video camera.
Vehicle detecting system provided by the utility model, by generating laser outgoing and vehicle
The perpendicular laser rays in traveling lane direction, the image collecting device change of shape to laser rays
It is acquired, obtains image information, at the image processing apparatus image information to collecting
Reason, determines the parameter information of driving vehicle by the deviation situation of laser rays.This utility model institute
The related art features of Video Detection with laser detection is melted by the vehicle detecting system provided
Close, due to the characteristic of laser high brightness so that complicated light environment is had by this detecting system
Good adaptation ability, analyzes difficulty particularly with the convention video such as vehicle shadow, night low-illumination
It also is able to well tackle with the problem processed.Further, since image essential record laser rays
Situation of change, reduces the interference of other moving targets, can effectively simplify foreground segmentation, spy
Levy the image processing operations such as extraction, reduce computational complexity, improve real-time.Visible, this Shen
Please be possible not only to reduce convention video and process the difficult problem faced by needing, it is also possible to simplify Video processing
Process, reduces amount of calculation, final the raising accuracy of vehicle detection, real-time.
Accompanying drawing explanation
For clearer explanation this utility model embodiment or the technical scheme of prior art, under
Face is by being briefly described the accompanying drawing used required in embodiment or description of the prior art, aobvious
And easy insight, the accompanying drawing in describing below is only embodiments more of the present utility model, for
From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to root
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is a kind of detailed description of the invention of vehicle detecting system provided by the utility model
Structured flowchart；
Fig. 2 is laser rays generation deflection phenomenon in vehicle detecting system provided by the utility model
Schematic diagram；
Fig. 3 is the side-looking of a kind of mounting means of vehicle detecting system provided by the utility model
Figure；
Fig. 4 is the side of the another kind of mounting means of vehicle detecting system provided by the utility model
View.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that this utility model scheme, below in conjunction with
The utility model is described in further detail for the drawings and specific embodiments.Obviously, retouched
The embodiment stated is only a part of embodiment of this utility model rather than whole embodiments.
Based on the embodiment in this utility model, those of ordinary skill in the art are not making creativeness
The every other embodiment obtained under work premise, broadly falls into the scope of this utility model protection.
A kind of structure of the detailed description of the invention of vehicle detecting system provided by the utility model
Block diagram is as it is shown in figure 1, this system includes:
The generating laser 1 of the laser rays that outgoing is perpendicular with the traveling lane direction of vehicle；Right
The change of shape of described laser rays is acquired, and obtains the image collecting device 2 of image information；
And be connected with described image collecting device, the described image information collected is processed,
Judge to block by the deviation situation of described laser rays and whether caused by vehicle process, and determine row
Sail the image processing apparatus 3 of the parameter information of vehicle.
Vehicle detecting system provided by the utility model, by generating laser outgoing and vehicle
The perpendicular laser rays in traveling lane direction, the image collecting device change of shape to laser rays
It is acquired, obtains image information, at the image processing apparatus image information to collecting
Reason, determines the parameter information of driving vehicle by the deviation situation of laser rays.This utility model institute
The related art features of Video Detection with laser detection is melted by the vehicle detecting system provided
Close, due to the characteristic of laser high brightness so that complicated light environment is had by this detecting system
Good adaptation ability, analyzes difficulty particularly with the convention video such as vehicle shadow, night low-illumination
It also is able to well tackle with the problem processed.Further, since image essential record laser rays
Situation of change, reduces the interference of other moving targets, can effectively simplify foreground segmentation, spy
Levy the image processing operations such as extraction, reduce computational complexity, improve real-time.Visible, this Shen
Please be possible not only to reduce convention video and process the difficult problem faced by needing, it is also possible to simplify Video processing
Process, reduces amount of calculation, final the raising accuracy of vehicle detection, real-time.
It is pointed out that in the application that generating laser can be specially infrared linear laser to send out
Emitter.Wavelength is more than or equal to 808nm, and human eye is invisible.The length and width of laser rays can be by
Real road situation and equipment installation situation determine.Preferably, for extending laser instrument service life,
Synchronizing signal can be sent by video camera to carry out triggering switch.
Image collecting device can be specially video camera.Video camera can also be further fitted with
The optical filter of corresponding optical maser wavelength, so as to filtering component environment light, improves laser rays in the picture
Signal to noise ratio.Video camera can use infrared-sensitive sensitive chip and global shutter camera lens, thus
Improve the quality of imaging.Certainly video camera can also use other kinds of video camera, does not limit
In using global shutter camera, this does not the most affect realization of the present utility model.
Image processing module, as the core processing module of system, is used for receiving and processing video camera
The video image gathered, and export result of calculation.Image processing module can run on common calculating
On machine, industrial computer or server, it is also possible to be integrated in camera chip.When by algorithm
When module is integrated in video camera, video camera can directly output detections signal to traffic signaling equipment,
Need not transmit the video to background server process, solve video transmission bandwidth requirement
With background server demand.
On the basis of above-described embodiment, vehicle detecting system provided by the utility model is schemed
As processing means can specifically include:
In the case of described laser rays is truncated, judge whether to block by car by deviation situation
The judge module that process causes；
Judge to block by vehicle in time causing, record the note by the time of described driving vehicle
Record module；
And judge to block by vehicle in time causing, the number of described driving vehicle is united
The counting module of meter.
In the application, line laser transmitter irradiates the laser being perpendicular to direction, track on road surface
Line, video camera is from another angle shot laser rays and near zone thereof.When having vehicle through laser
During line, ground laser rays is truncated, and occurs deviating from the laser rays of original position at vehicle roof,
The schematic diagram of laser rays generation deflection phenomenon is as shown in Figure 2.
Image processing module passes through image procossing and algorithm for pattern recognition, to the laser rays in image
And deviation situation is analyzed.When judging laser rays as a whole straight line, now do not have
Vehicle is through laser rays；When judging that laser rays is truncated, now there is vehicle through laser rays.
It is pointed out that in specific implementation process, have multiple situation and cause laser rays quilt
Block, if any vehicle, non-vehicle foreign body through laser rays, the impact etc. of the strong lamp of vehicle at night,
Be analyzed the laser rays situation of blocking judging by judge module, it is judged that block be whether by
Vehicle process causes.Pass through if it is, be determined with vehicle.
By being added up by the number of vehicles in this track in a period of time in the present embodiment,
Important traffic parameter can be provided.
Preferably due to the vehicle of different external forms can produce the inclined of different shapes to laser rays
Folding, by the analysis of laser rays change of shape and range of triangle principle, can be to vehicle outside
Type carries out three-dimensional reconstruction, thus realizes vehicle cab recognition function.
Therefore, on the basis of above-described embodiment, image procossing provided by the utility model fills
Put and can further include:
The change of shape of described laser rays is analyzed, according to range of triangle principle to described row
The profile sailing vehicle carries out three-dimensional reconstruction, carries out the identification module of vehicle cab recognition.
Utilize range of triangle can record the laser rays distance to this equipment of vehicle roof, namely
Vehicle roof is to the distance of this equipment, through simple geometrical calculation, it is possible to obtain vehicle roof
To the distance on ground, namely overall height；On the other hand, at vehicle body through laser rays during this period of time
In, so repeat repeatedly to find range, be then equivalent to car body is carried out tomoscan, thus obtain
Obtain the general outline of car body, realize vehicle cab recognition with this.
Further, the application can also realize testing the speed driving vehicle.In the present embodiment,
Described generating laser is two generating lasers of interval predeterminable range, described image collector
Be set to two respectively change of shape to the laser rays of described laser transmitter projects be acquired
Harvester.
Now, the figure that image processing apparatus can be gathered respectively by two described image collecting devices
As information, determine described driving vehicle by two described generating lasers by the time, enter
And calculate the speed measuring module of the travel speed of described driving vehicle.When using two parallel laser
Line keeps at a certain distance away when irradiating road surface, records same car through between the time of two laser rays
Every, with distance interval divided by time interval, it is possible to obtain the speed of vehicle.
It is pointed out that being spaced predeterminable range in this embodiment disposes two covering devices, to realize
The function tested the speed.If need not speed measuring function, dispose set of device.
Vehicle detecting system provided by the utility model can further include:
By described parameter information is calculated, determine the wagon flow comprising described traveling lane
Amount, occupation rate, the detection module of traffic parameter information of motorcade length.
By the above-mentioned counting to vehicle, vehicle cab recognition and vehicle speed measuring, the application is all right
By these three parameter, indirectly calculate the parameter such as lane occupancy ratio, motorcade length, thus realize
Complete traffic parameter acquisition function.
Equipment to vehicle detecting system provided by the utility model is installed into traveling one below
Step elaborates.It is pointed out that in the application, video camera and generating laser need difference
Irradiating angle, be spaced certain predeterminable range the most between the two, to guarantee that video camera can be seen
Observe the change of shape of ground laser rays.
Two kinds of mounting means of citing below, first kind of way is, video camera and generating laser divide
Not being installed on the cross bar two ends of certain length (can be 2 meters), cross bar level is fixed on road
Portal frame or F bar (they are generally 6m away from ground vertical dimension) on, the first install
Mode visual angle is downward, a kind of installation of vehicle detecting system as provided by the utility model in Fig. 3
Shown in the side view of mode, now laser irradiation distance is near, and power attenuation is little, imaging clearly,
But camera field of view is little, shooting number of track-lines is few.Before the second mounting means visual angle is tilted towards, as
The side view institute of the another kind of mounting means of Fig. 4 vehicle detecting system provided by the utility model
Showing, now laser irradiation distance is remote, and power attenuation is big, image blur, but camera field of view is big,
Shooting number of track-lines is many.Certainly other mounting means also may be used, however it is not limited to two kinds illustrated here.
Actual mounting means needs specifically to be determined by engineering-environment.
To sum up, vehicle detecting system provided herein, comprehensive use laser and Video processing
Technology realizes vehicle detection function, it is to avoid general video detector is easily affected by light environment
Shortcoming, analyzes reluctant asking particularly with the convention video such as vehicle shadow, night low-illumination
Topic also is able to well tackle.Additionally, the application also simplifies at the image of general video detector
Reason process, reduces algorithm complex and amount of calculation, can improve precision and the real-time of detection,
The equipment cost of general laser detector is greatly reduced.
In this specification, each embodiment uses the mode gone forward one by one to describe, and each embodiment emphasis is said
Bright is all the difference with other embodiments, same or similar part between each embodiment
See mutually.For device disclosed in embodiment, disclosed in itself and embodiment
Method is corresponding, so describe is fairly simple, relevant part sees method part and illustrates.
Professional further appreciates that, describes in conjunction with the embodiments described herein
The unit of each example and algorithm steps, it is possible to electronic hardware, computer software or the two
Be implemented in combination in, in order to clearly demonstrate the interchangeability of hardware and software, in described above
In generally described composition and the step of each example according to function.These functions are actually
Perform with hardware or software mode, depend on application-specific and the design constraint of technical scheme
Condition.Each specifically should being used for can be used different methods to realize institute by professional and technical personnel
The function described, but this realization is it is not considered that exceed scope of the present utility model.
The method described in conjunction with the embodiments described herein or the step of algorithm can be direct
Implement with hardware, the software module of processor execution, or the combination of the two.Software module
Random access memory (RAM), internal memory, read only memory (ROM), electrically programmable can be placed in
ROM, electrically erasable ROM, depositor, hard disk, moveable magnetic disc, CD-ROM,
Or in any other form of storage medium well known in technical field.
Above vehicle detecting system provided by the utility model is described in detail.Herein
In apply specific case principle of the present utility model and embodiment be set forth, above
The explanation of embodiment is only intended to help to understand method of the present utility model and core concept thereof.Should
When pointing out, for those skilled in the art, without departing from this utility model
On the premise of principle, it is also possible to this utility model is carried out some improvement and modification, these improve
Also fall in this utility model scope of the claims with modification.
Claims (10)
1. a vehicle detecting system, it is characterised in that including:
The generating laser of the laser rays that outgoing is perpendicular with the traveling lane direction of vehicle；To institute
The change of shape stating laser rays is acquired, and obtains the image collecting device of image information；And
It is connected with described image collecting device, the described image information collected is processed, passes through
Whether the deviation situation judgement of described laser rays is blocked and is caused by vehicle process, and determine Travel vehicle
The image processing apparatus of parameter information.
2. vehicle detecting system as claimed in claim 1, it is characterised in that described image
Processing means includes:
In the case of described laser rays is truncated, judge whether to block by car by deviation situation
The judge module that process causes；
Judge to block by vehicle in time causing, record the note by the time of described driving vehicle
Record module；
And judge to block by vehicle in time causing, the number of described driving vehicle is united
The counting module of meter.
3. vehicle detecting system as claimed in claim 2, it is characterised in that described image
Processing means also includes:
The change of shape of described laser rays is analyzed, according to range of triangle principle to described row
The profile sailing vehicle carries out three-dimensional reconstruction, carries out the identification module of vehicle cab recognition.
4. vehicle detecting system as claimed in claim 3, it is characterised in that described laser
Emitter is two generating lasers of interval predeterminable range, and described image collector is set to two
The collection the dress respectively change of shape of the laser rays of described laser transmitter projects being acquired
Put.
5. vehicle detecting system as claimed in claim 4, it is characterised in that described image
Processing means also includes:
The image information gathered respectively by two described image collecting devices, determines described traveling
Vehicle by two described generating lasers by the time, calculate the traveling of described driving vehicle
The speed measuring module of speed.
6. the vehicle detecting system as described in any one of claim 1 to 5, it is characterised in that
Also include:
By described parameter information is calculated, determine the wagon flow comprising described traveling lane
Amount, occupation rate, the detection module of traffic parameter information of motorcade length.
7. vehicle detecting system as claimed in claim 6, it is characterised in that described laser
Emitter is infrared linear generating laser.
8. vehicle detecting system as claimed in claim 7, it is characterised in that described image
Harvester is video camera.
9. vehicle detecting system as claimed in claim 8, it is characterised in that described shooting
Machine is additionally provided with the optical filter corresponding with described generating laser wavelength.
10. vehicle detecting system as claimed in claim 9, it is characterised in that described shooting
Machine is to use infrared-sensitive sensitive chip and the video camera of global shutter camera lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620188458.9U CN205508143U (en) | 2016-03-11 | 2016-03-11 | Vehicle detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620188458.9U CN205508143U (en) | 2016-03-11 | 2016-03-11 | Vehicle detecting system |
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| Publication Number | Publication Date |
|---|---|
| CN205508143U true CN205508143U (en) | 2016-08-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105608907A (en) * | 2016-03-11 | 2016-05-25 | 昆山市工研院智能制造技术有限公司 | Vehicle detection system |
| TWI601100B (en) * | 2016-08-26 | 2017-10-01 | H P B Optoelectronic Co Ltd | Vehicle detection system and its method |
-
2016
- 2016-03-11 CN CN201620188458.9U patent/CN205508143U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105608907A (en) * | 2016-03-11 | 2016-05-25 | 昆山市工研院智能制造技术有限公司 | Vehicle detection system |
| TWI601100B (en) * | 2016-08-26 | 2017-10-01 | H P B Optoelectronic Co Ltd | Vehicle detection system and its method |
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