CN109767629A - A kind of camera system and its speed-measuring method of integrated speed measuring function - Google Patents
A kind of camera system and its speed-measuring method of integrated speed measuring function Download PDFInfo
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- CN109767629A CN109767629A CN201910101550.5A CN201910101550A CN109767629A CN 109767629 A CN109767629 A CN 109767629A CN 201910101550 A CN201910101550 A CN 201910101550A CN 109767629 A CN109767629 A CN 109767629A
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Abstract
The present invention provides a kind of camera systems of integrated speed measuring function, including camera unit, data acquisition unit, data analysis and processing unit；Camera unit is mounted on highway overhead, acquires information of vehicles in a manner of video shooting, forms Video data stream, and by wired or wireless transmission mode by data stream to data acquisition unit；Data acquisition unit collects the Video data stream of the camera unit acquisition, and is sent to the data analysis and processing unit；Data analysis and processing unit includes video recording picture frame number monitoring module, picture analyzing module, computing module, video recording picture frame number monitoring module is used to Video data stream successively splitting into picture one by one, picture analyzing module is used to compare the vehicle position information in different pictures, travel speed of the computing module for the positional information calculation vehicle according to vehicle in different pictures, realizes speed measuring function.Camera system of the present invention realizes that single camera to vehicle speed measurement, reduces testing cost, simplifies installation process.
Description
Technical field
The present invention relates to a kind of camera systems, camera system and its side of testing the speed more particularly to a kind of integrated speed measuring function
Method.
Background technique
There are a large amount of camera system and radar velocity measurement device on common road or highway, for monitoring driver's traveling
Specification.Using speed measuring device on highway at present is usually to be worked together by camera system and radar, is realized to hypervelocity behavior
Detected and taken pictures evidence obtaining.When radar measures overspeed of vehicle, camera system take pictures retaining information of vehicles simultaneously, this is wanted
Radar and camera system is asked to work at the same time, the damage of one of them will lead to speed measuring function and then fail, and cause speed measuring device
Installation cost and maintenance cost are all higher than an independent camera system.
Summary of the invention
The present invention provides the camera systems and its speed-measuring method of a kind of integrated speed measuring function, to realize single camera pair
The measurement of car speed reduces testing cost, simplifies installation process.
The present invention provides a kind of camera systems of integrated speed measuring function, including camera unit, data acquisition unit, data
Analysis and processing unit；
The camera unit is mounted on highway overhead, and information of vehicles is acquired in a manner of video shooting, forms Video data stream,
And by wired or wireless transmission mode by data stream to data acquisition unit；
The data acquisition unit collects the Video data stream of the camera unit acquisition, and is sent to the data analysis
Processing unit；
The data analysis and processing unit includes video recording picture frame number monitoring module, picture analyzing module, computing module, institute
Video recording picture frame number monitoring module is stated to be used to Video data stream successively splitting into picture one by one, the picture analyzing mould
Block is used to compare the vehicle position information in different pictures, and the computing module is for the position according to vehicle in different pictures
Information calculates the travel speed of vehicle, realizes speed measuring function.
Further, the camera unit is made of several cameras, the camera be set to road driveway just on
Side, and the camera shooting direction is identical as the extending direction in the lane.
Further, all or part of camera is speed monitoring camera, the speed monitoring camera packet
Camera body, Bus- Speed Monitoring camera lens are included, the Bus- Speed Monitoring camera lens is equipped with several detection lines parallel to each other, the vehicle
Fast monitoring camera exists in working condition, and the detection line and straight line where the extending direction of lane are perpendicular.
Further, the camera body is ultra high-definition monitoring camera.
Further, the width of the detection line is no more than 0.5mm
Further, the detection line is the stripe shape optical filter that long wave leads to, and the optical filter stickup is mounted on camera lens.
Further, the camera is mounted on above highway, and the lane of the camera and highway corresponds,
The camera unit is successively alternately arranged and is formed by speed monitoring camera, non-speed monitoring camera.
The present invention provides a kind of speed-measuring methods of above-mentioned integrated speed measuring function camera system, comprise the following steps that
Step 1: camera unit records a video to vehicle travelled on highway；
Step 2: data acquisition unit collects video information, and is sent to data analysis and processing unit and is analyzed and processed；
Step 3: video recording picture frame number monitoring module will record a video and split into picture one by one, picture according to its frame number F
The license plate information and location information of vehicle in analysis module analysis picture determine picture number N, the vehicle for taking same vehicle
The distance S of traveling, computing module determine vehicle in the row of the camera unit monitoring area according to formula V=S/T=S/ (N/F)
Speed is sailed, to realize the process that tests the speed.
The present invention also provides a kind of speed-measuring methods of above-mentioned integrated speed measuring function camera system, comprise the following steps that
Step 1: camera unit records a video to vehicle travelled on highway；
Step 2: data acquisition unit collects video information, and is sent to data analysis and processing unit and is analyzed and processed；
Step 3: video recording picture frame number monitoring module splits video recording captured by speed monitoring camera according to its frame number F
At picture one by one；
Step 4: picture analyzing module carries out the location information of vehicle in video recording picture captured by speed monitoring camera
Analysis, determination take the distance S that same vehicle crosses the picture number N of adjacent detection line, vehicle driving；
Step 5: picture analyzing module carries out the license plate information of vehicle in video recording picture captured by speed monitoring camera
Analysis determines；
Step 6: computing module determines vehicle in speed monitoring camera monitoring area according to formula V=S/T=S/ (N/F)
Travel speed, to realize testing the speed for vehicle.
The present invention also provides a kind of speed-measuring methods of above-mentioned integrated speed measuring function camera system, comprise the following steps that
Step 1: camera unit records a video to vehicle travelled on highway；
Step 2: data acquisition unit collects video information, and is sent to data analysis and processing unit and is analyzed and processed；
Step 3: video recording picture frame number monitoring module will be captured by speed monitoring camera and non-speed monitoring camera
Video recording splits into picture one by one according to its frame number F；
Step 4: picture analyzing module carries out the location information of vehicle in video recording picture captured by speed monitoring camera
Analysis, determination take the distance S that same vehicle crosses the picture number N of adjacent detection line, vehicle driving；
Step 5: picture analyzing module is in video recording picture captured by speed monitoring camera and non-speed monitoring camera
The license plate information of vehicle carries out analysis determination；
Step 6: computing module determines vehicle in speed monitoring camera monitoring area according to formula V=S/T=S/ (N/F)
Travel speed, to realize testing the speed for vehicle.
The present invention compared with the existing technology, utilizes video recording picture frame number monitoring module, the picture of data analysis and processing unit
Analysis module, computing module realize that single camera tests the speed effect, avoid the use of radar, can simplify the installation of speed measuring and monitoring
And maintenance, save cost.
Detailed description of the invention
Fig. 1 is side view of 1 camera unit of the embodiment of the present invention in highway installation site；
Fig. 2 is top view of 1 camera unit of the embodiment of the present invention in highway installation site；
Fig. 3 is 2 speed monitoring camera of the embodiment of the present invention, the successively alternately arranged signal of non-speed monitoring camera
Figure.
Specific embodiment
It in order to enable those skilled in the art to better understand the solution of the present invention, below will be to the skill in the embodiment of the present invention
Art scheme is clearly and completely described, it is clear that and the described embodiment is only a part of the embodiment of the present invention, without
It is whole embodiments.
The embodiment of the present invention 1 provides a kind of camera system of integrated speed measuring function, including camera unit, data acquisition list
Member, data analysis and processing unit；
The camera unit is mounted on highway overhead, as depicted in figs. 1 and 2, information of vehicles is acquired in a manner of video shooting,
Video data stream is formed, and passes through wireless transmission method for data stream to data acquisition unit；
The data acquisition unit collects the Video data stream of the camera unit acquisition, and is sent to the data analysis
Processing unit；
The data analysis and processing unit includes video recording picture frame number monitoring module, picture analyzing module, computing module, institute
Video recording picture frame number monitoring module is stated to be used to Video data stream successively splitting into picture one by one, the picture analyzing mould
Block is used to compare the vehicle position information in different pictures, and the computing module is for the position according to vehicle in different pictures
Information calculates the travel speed of vehicle, realizes speed measuring function.
Optionally, as depicted in figs. 1 and 2, the camera unit is made of several cameras, and the camera is set to
Right above road driveway, and the camera shooting direction is identical as the extending direction in the lane.
Particularly, all speed monitoring cameras of the camera, the speed monitoring camera include camera master
Body, Bus- Speed Monitoring camera lens, the Bus- Speed Monitoring camera lens are equipped with several detection lines parallel to each other, the speed monitoring camera
Head exists in working condition, and the detection line and straight line where the extending direction of lane are perpendicular.The camera body is ultra high-definition
Monitoring camera.The width of the detection line is no more than 0.5mm.
The speed-measuring method of 1 camera system of the embodiment of the present invention, comprises the following steps that
Step 1: camera unit records a video to vehicle travelled on highway；
Step 2: data acquisition unit collects video information, and is sent to data analysis and processing unit and is analyzed and processed；
Step 3: video recording picture frame number monitoring module splits video recording captured by speed monitoring camera according to its frame number F
At picture one by one；
Step 4: picture analyzing module carries out the location information of vehicle in video recording picture captured by speed monitoring camera
Analysis, determination take the distance S that same vehicle crosses the picture number N of adjacent detection line, vehicle driving；
Step 5: picture analyzing module carries out the license plate information of vehicle in video recording picture captured by speed monitoring camera
Analysis determines；
Step 6: computing module determines vehicle in speed monitoring camera monitoring area according to formula V=S/T=S/ (N/F)
Travel speed, to realize testing the speed for vehicle.
Camera has corresponding frame number each second in video recording, that is, camera video recording has corresponding frame per second, camera
The each frame of the picture recorded all is static image, in extremely rapid succession shows that each frame image just forms the illusion of movement,
Smooth, video record true to nature is restored with this.The camera system of the embodiment of the present invention 1 increases on the basis of traditional camera system
Add video recording picture frame number monitoring function, increase two lines in the Bus- Speed Monitoring camera lens of camera: A and B, two lines project to road surface
On position be respectively line A ' and line B ', as depicted in figs. 1 and 2, line A ' and line B ' distance can be measured as S.
Video record state is in when camera system works normally, it can also be when camera system monitors that there are objects moving
Start recorded video.When vehicle pass through between monitoring range line A ' and line B ' when, camera system monitoring vehicle by when record
Picture frame number N.It sets camera system and records the frame per second of picture as F, then the when a length of 1/F of each frame, obtains vehicle and pass through prison
Control range the every frame duration 1/F* frame number N=N/F of duration T=, in prediction on such basis out vehicle by speed V=S/T=S/ (N/F)=
FS/N.When camera system is installed, data S is measured and is input in computing module, when the speed V calculated is greater than the section
When the speed of restriction, camera system by network automatically by the video data of over-speed vehicles and hypervelocity speed upload to cloud or
Monitoring center.
If monitoring range S is 30 meters, camera system frame per second is that 24 frames are (24fps) per second, certain Speed Limitation on Freeway is
120km/h, i.e. speed limit 33.3m/s.When vehicle passes through this section, 20 frame of picture is recorded to obtain, then can calculate speed=30/ (20/
24)=36m/s (≈ 130km/h), hypervelocity；When vehicle passes through this section, 24 frame of picture is recorded to obtain, then can calculate speed=30/
(24/24)=30m/s (≈ 108km/h), does not exceed the speed limit.
The embodiment of the present invention 1 using the video recording picture frame number monitoring module of data analysis and processing unit, picture analyzing module,
Computing module realizes that single camera tests the speed effect, avoids the use of radar, can simplify the installation and maintenance of speed measuring and monitoring, saves
Cost-saving.Meanwhile the logical stripe shape optical filter of long wave also can be selected in detection line in the embodiment of the present invention, passes through the long glistening light of waves,
And short wavelength light is stopped, it is ensured that detection line corresponding position lacks short wavelength light in video recording, in the analysis process, by picture
Optical analysis can effectively determine detection line position, but not influence detection of the camera to vehicle license information, it is maximum
Interference of the detection line to camera is reduced in degree.
The camera system of the embodiment of the present invention 2, including camera unit, data acquisition unit, data analysis and processing unit；
The camera unit is mounted on highway overhead, and information of vehicles is acquired in a manner of video shooting, forms Video data stream,
And pass through wire transmission mode for data stream to data acquisition unit；
The data acquisition unit collects the Video data stream of the camera unit acquisition, and is sent to the data analysis
Processing unit；
The data analysis and processing unit includes video recording picture frame number monitoring module, picture analyzing module, computing module, institute
Video recording picture frame number monitoring module is stated to be used to Video data stream successively splitting into picture one by one, the picture analyzing mould
Block is used to compare the vehicle position information in different pictures, and the computing module is for the position according to vehicle in different pictures
Information calculates the travel speed of vehicle, realizes speed measuring function.
The camera unit is made of 5 cameras, and the camera is set to right above road driveway, and the camera shooting
Head shooting direction is identical as the extending direction in the lane.2 camera of the embodiment of the present invention is mounted on above highway, and described is taken the photograph
As the lane one-to-one correspondence of Tou Yu highway, the camera unit by speed monitoring camera 1, the monitoring of non-speed as shown in figure 3, taken the photograph
Composition is successively alternately arranged as first 2, and a camera is set on a lane.
The speed-measuring method of 2 camera system of the embodiment of the present invention, comprises the following steps that
Step 1: camera unit records a video to vehicle travelled on highway；
Step 2: data acquisition unit collects video information, and is sent to data analysis and processing unit and is analyzed and processed；
Step 3: video recording picture frame number monitoring module will be captured by speed monitoring camera 1 and non-speed monitoring camera 2
Video recording split into picture one by one according to its frame number F；
Step 4: picture analyzing module carries out the location information of vehicle in video recording picture captured by speed monitoring camera
Analysis, determination take the distance S that same vehicle crosses the picture number N of adjacent detection line, vehicle driving；
Step 5: picture analyzing module is in video recording picture captured by speed monitoring camera and non-speed monitoring camera
The license plate information of vehicle carries out analysis determination；
Step 6: computing module determines vehicle in speed monitoring camera monitoring area according to formula V=S/T=S/ (N/F)
Travel speed, to realize testing the speed for vehicle.
Wherein, non-speed monitoring camera 2 is common monitoring camera.As shown in figure 3, by taking five lanes, 5 highway as an example,
Speed monitoring camera 1 is staggered with non-speed monitoring camera 2, makes a speed monitoring camera 1 that can realize three lanes
Monitoring.The monitoring distal end 4 and monitoring proximal end 3 of two speed monitoring cameras 1 form monitoring area in five lanes 5, in vehicle
When input monitoring region, speed monitoring camera 1 can be monitored and test the speed.
The embodiment of the present invention is successively alternately arranged group by using speed monitoring camera 1, non-speed monitoring camera 2
At, it realizes a speed monitoring 1 while detecting the Vehicle Speed in three lanes 5, and it is adjacent with speed monitoring camera 1
Two non-speed monitoring cameras 2 need to cooperate speed monitoring camera 1 to monitor the license plate information of vehicle, effectively reduce
The application cost and maintenance cost of camera system, expand the practicability of camera system.
Finally it should be noted that the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
Invention is explained in detail referring to above-described embodiment for pipe, it should be understood by a person of ordinary skill in the art that technology
Personnel read present specification after still can with modifications or equivalent substitutions are made to specific embodiments of the invention, but this
A little modifications are changed within all without departing from the present patent application accompanying claims protection scope.
Claims (10)
1. a kind of camera system of integrated speed measuring function, which is characterized in that the camera system includes camera unit, data acquisition
Unit, data analysis and processing unit；
The camera unit is mounted on highway overhead, and information of vehicles is acquired in a manner of video shooting, forms Video data stream, and lead to
Wired or wireless transmission mode is crossed by data stream to data acquisition unit；
The data acquisition unit collects the Video data stream of the camera unit acquisition, and is sent to the Data Analysis Services
Unit；
The data analysis and processing unit includes video recording picture frame number monitoring module, picture analyzing module, computing module, the record
As picture frame number monitoring module is used to successively split into Video data stream picture one by one, the picture analyzing module use
In comparing the vehicle position information in different pictures, the computing module is for the location information according to vehicle in different pictures
The travel speed of vehicle is calculated, realizes speed measuring function.
2. integrating the camera system of speed measuring function according to claim 1, which is characterized in that the camera unit is by several
Camera composition, the camera are set to right above road driveway, and the camera shooting direction and the lane are prolonged
It is identical to stretch direction.
3. integrating the camera system of speed measuring function according to claim 2, which is characterized in that all or part of camera
For speed monitoring camera, the speed monitoring camera includes camera body, Bus- Speed Monitoring camera lens, the Bus- Speed Monitoring mirror
Head is equipped with several detection lines parallel to each other, and the speed monitoring camera exists in working condition, the detection line and vehicle
Straight line where road extending direction is perpendicular.
4. integrating the camera system of speed measuring function according to claim 3, which is characterized in that the camera body is superelevation
Clear monitoring camera.
5. integrating the camera system of speed measuring function according to claim 3, which is characterized in that the width of the detection line does not surpass
Cross 0.5mm.
6. integrating the camera system of speed measuring function according to claim 3, which is characterized in that the detection line is what long wave led to
Stripe shape optical filter, the optical filter stickup are mounted on camera lens.
7. integrating the camera system of speed measuring function according to claim 3, which is characterized in that the camera is mounted on highway
Top, and the lane of the camera and highway corresponds, the camera unit is monitored by speed monitoring camera, non-speed
Camera is successively alternately arranged composition.
8. a kind of speed-measuring method of speed measuring function camera system integrated as described in claim 1, which is characterized in that such as including step
Under:
Step 1: camera unit records a video to vehicle travelled on highway；
Step 2: data acquisition unit collects video information, and is sent to data analysis and processing unit and is analyzed and processed；
Step 3: video recording picture frame number monitoring module will record a video and split into picture one by one, picture analyzing according to its frame number F
The license plate information and location information of vehicle in module analysis picture determine picture number N, the vehicle driving for taking same vehicle
Distance S, computing module according to formula V=S/T=S/ (N/F) determine vehicle the camera unit monitoring area traveling speed
Degree, to realize the process that tests the speed.
9. a kind of speed-measuring method of speed measuring function camera system integrated as claimed in claim 3, which is characterized in that such as including step
Under:
Step 1: camera unit records a video to vehicle travelled on highway；
Step 2: data acquisition unit collects video information, and is sent to data analysis and processing unit and is analyzed and processed；
Step 3: video recording captured by speed monitoring camera is split into one according to its frame number F by video recording picture frame number monitoring module
The picture of one frame of frame；
Step 4: picture analyzing module analyzes the location information of vehicle in video recording picture captured by speed monitoring camera,
Determination takes the distance S that same vehicle crosses the picture number N of adjacent detection line, vehicle driving；
Step 5: picture analyzing module analyzes the license plate information of vehicle in video recording picture captured by speed monitoring camera
It determines；
Step 6: computing module determines vehicle in the row of speed monitoring camera monitoring area according to formula V=S/T=S/ (N/F)
Speed is sailed, to realize testing the speed for vehicle.
10. a kind of speed-measuring method of speed measuring function camera system integrated as claimed in claim 7, which is characterized in that including step
It is as follows:
Step 1: camera unit records a video to vehicle travelled on highway；
Step 2: data acquisition unit collects video information, and is sent to data analysis and processing unit and is analyzed and processed；
Step 3: video recording picture frame number monitoring module is by video recording captured by speed monitoring camera and non-speed monitoring camera
Picture one by one is split into according to its frame number F；
Step 4: picture analyzing module analyzes the location information of vehicle in video recording picture captured by speed monitoring camera,
Determination takes the distance S that same vehicle crosses the picture number N of adjacent detection line, vehicle driving；
Step 5: picture analyzing module is to vehicle in video recording picture captured by speed monitoring camera and non-speed monitoring camera
License plate information carry out analysis determination；
Step 6: computing module determines vehicle in the row of speed monitoring camera monitoring area according to formula V=S/T=S/ (N/F)
Speed is sailed, to realize testing the speed for vehicle.
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Cited By (1)
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| CN112415217A (en) * | 2020-12-24 | 2021-02-26 | 中建材信息技术股份有限公司 | Vehicle speed measuring method based on video |
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Application publication date: 20190517 |