CN207319252U - A kind of vehicle drive shaft identification device based on laser sensor and camera - Google Patents
A kind of vehicle drive shaft identification device based on laser sensor and camera Download PDFInfo
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- CN207319252U CN207319252U CN201721440184.9U CN201721440184U CN207319252U CN 207319252 U CN207319252 U CN 207319252U CN 201721440184 U CN201721440184 U CN 201721440184U CN 207319252 U CN207319252 U CN 207319252U
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Abstract
The utility model patent discloses a kind of vehicle drive shaft identification device based on laser sensor and camera, which includes scanning type laser distance measuring sensor, camera and data processing unit.The scanning type laser distance measuring sensor is installed in the upright bar of track side, real time scan vehicular traffic, easy to obtain the profile information of vehicular traffic.The camera is installed in another upright bar of the scanning type laser distance measuring sensor homonymy, for passively capturing the chassis information of car.When data processing unit detect the scanning of scanning type laser distance measuring sensor to vehicle twins when, camera will be triggered shooting is focused to the chassis region where the twins, by whether containing axle housing structure determining whether drive shaft in processing analysis image.The utility model by combination identify drive shaft, have the advantages that install, it is easy to maintain, efficient.
Description
Technical field
It the utility model is related to technical field of intelligent traffic, more particularly to a kind of car based on laser sensor and camera
Drive shaft identification device.
Background technology
The illegal transport phenomena that vehicle overload overloads still emerges in an endless stream, this not only damages highway infrastructures, triggers a large amount of
Road traffic accident, and also directly result in Market of Roadway Transportation harmful competition and vehicle production use order confusion.
Vehicle maximum design axle load limit value is not only related with spindle-type and contour dimension, but also with the axis whether as traveling
Drive shaft it is related.Restriction load-carryings of the latest national standards GB1589-2016 to vehicle drive shaft and nonpowered axle has been done clearly
Distinguish, this mean that can effective district separating vehicles drive shaft and nonpowered axle become another new class in scientific and technological overload remediation task
Topic.
Such as Patent No. CN201621331817.8 entitled " discriminating gear of a kind of vehicle drive shaft and nonpowered axle "
(day for announcing is on 08 29th, 2017), which is to identify drive shaft and non-drive by wheel shaft induction strip and angel measuring instrument
Moving axis, such as Patent No. CN201710103050.6 entitled " a kind of driving wheel identification device ", (day for announcing is 2017 05
The moon 10), which is that the size and Orientation of frictional force is detected by quartzy sensing unit, because of driving wheel and driven wheel frictional force
The difference in direction, so as to fulfill the detection of driving wheel.
Above patent can realize the identification of drive shaft, but there is also drawback, for the vehicle of deceleration, using friction
Power detection method will fail.It is and high for the contact equipment being embedded under road surface, later maintenance cost.
Utility model content
The technical problem that the utility model solves is to provide a kind of contactless, high discrimination, drive easy to install, easy care
Moving axis identification device, realizes the automatic identification to vehicle drive shaft.
In order to solve the above technical problems, driven the utility model discloses a kind of based on the vehicle of Laser Measuring sensor and camera
Moving axis identification device, it is characterised in that including：Scanning type laser distance measuring sensor, camera and data processing unit；
The scanning type laser distance measuring sensor is installed in the upright bar of track side, passing for real time scan runway
Vehicle, easy to obtain the profile information of vehicle in real time；
The camera is installed in another upright bar of scanning type laser distance measuring sensor driving opposite direction；Capture area
Domain is in the scanning type laser distance measuring sensor scanning area and among runway, for capturing the chassis of vehicular traffic
Information；
The data processing unit is connected by TCP/IP networks with the scanning type laser distance measuring sensor, for handling
The information that the scanning type laser distance measuring sensor obtains, is touched when detecting the scanning of scanning type laser distance measuring sensor to twins
Camera is sent out to capture；It is connected with the camera, the image information captured for handling the camera, and analyze in image and be
It is no to determine whether drive shaft containing axle housing structure.
The scanning type laser distance measuring sensor scanning direction is preferably perpendicular to runway direction, and setting height(from bottom) is apart from ground
For 1~2 meter；The camera setting height(from bottom) is below 0.5 meter of ground；The candid photograph region is sensed in scanning type laser ranging
In device scanning area and positioned at 1~2 meter among runway；
The camera is preferably mounted at the scanning type laser distance measuring sensor homonymy, and setting height(from bottom) is apart from ground
0.2 meter, scanning type laser distance measuring sensor described in horizontal distance is 2~4 meters, is 0~1 meter apart from lane boundary；Capture angle
With direction of traffic into 30~45 degree of angles, with the horizontal 0~20 degree of angle.
The above-mentioned technical proposal of the utility model has the following advantages that：
1st, this method installation is simple, easy to maintain；
2nd, deep learning algorithm classification is utilized, there is provided great amount of samples is trained, and discrimination is high；
3rd, exportable vehicular sideview profile information, can combine other application and use.
Brief description of the drawings
Fig. 1 is the scheme of installation of a preferred embodiment of the utility model；
Fig. 2 is that first preferably passive candid photograph area schematic is imaged in the utility model；
Embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is further described.Following embodiments are only used for
Clearly demonstrate the technical solution of the utility model, and the scope of protection of the utility model cannot be limited with this.
Fig. 1 is a kind of vehicle traction based on laser sensor and camera of a preferred embodiment of the utility model
Axis identification device schematic diagram, as shown in Figure 1, scanning type laser distance measuring sensor 103 is installed on track one with h1=1.5 meters of height
In the upright bar of side, the distance apart from track is L3=0.5 meters, its scanning direction is perpendicular to runway direction, the waveform number of scanning
Data processing unit 101 is transmitted to according to by cable.Scanning type laser distance measuring sensor 103 uses wavelength infrared for 905 nanometers
Light, scan frequency are 50Hz, and angular resolution is 0.5 degree, and scanning angle is 180 degree, and systematic error is 30 millimeters, front and rear frame
20 milliseconds of time interval.
Camera 102 is installed in the upright bar of 103 homonymy of scanning type laser distance measuring sensor driving opposite direction, range sweep
103L1=3 meters of formula laser range sensor, apart from h2=0.2 meters of ground level, L2=0.2 meters of the distance apart from track, is captured
Angle in angle of 45 degrees, captures image and is transmitted to data processing unit 101 by cable with direction of traffic.
Fig. 2, which is that camera 102 1 is preferably passive in the utility model, captures area schematic.When scanning type laser ranging
Sensor 103 scans in its scanning area S1 when arriving vehicle twin tires, and data processing unit 101 can be imaged by network-triggered
Head is focused candid photograph, captures region as shown in S2 in Fig. 2, S2 is much smaller than S1.
The specific implementation process of the utility model is：Scanning type laser distance measuring sensor 103 is perpendicular to the side of runway
Scanned upwards with 0.5 degree of point, the mode of 20 millisecond of one frame, when vehicle passes through scanning area, 103 scanning cross-section of laser
On point value change, these Value Datas are transmitted to data processing unit 101, you can obtain vehicle gabarit information.Because
The difference of single tire and twins structure, it is possible to effective district separating vehicles list twins.When data processing unit 101 detects twins
When, network-triggered camera 102 will be utilized to be focused chassis region where the twins and taken pictures, data processing unit 101
The image captured is adjusted back, CNN (convolutional neural networks) model of keras deep learning framework establishments is utilized on LINUX platforms
Classify to image, CNN models determine whether drive shaft according to whether containing axle housing structure in image, and model makes
With needing to be trained it using a large amount of positive negative samples manually gathered before, to reach expected accuracy.
If twins is arrived in scanning to data processing unit 101 for the first time in a car, continue to determine whether as connecting shaft pair
Tire, if it is not, then can determine that the vehicle traction number of axle is 1；If it is, the image procossing knot with reference to connecting shaft twins second fetus
Fruit is analyzed, if Image Information Processing result is drive shaft, which is 2, if processing result image
For nonpowered axle, then the driving number of axle of the vehicle is 1.
Finally it should be noted that：Above example is only an embodiment of the utility model selection, rather than it is limited
System；It should be pointed out that it will be understood by those of ordinary skill in the art that：It still can be to the technical side described in previous embodiment
Case is modified, or carries out equivalent substitution to which part technical characteristic；And these modifications or replacement, do not make corresponding skill
The essence of art scheme departs from the scope of protection of the utility model.
Claims (3)
- A kind of 1. vehicle drive shaft identification device based on laser sensor and camera, it is characterised in that including：Scan-type swashs Ligh-ranging sensor, camera and data processing unit；The scanning type laser distance measuring sensor is installed in the upright bar of track side, for the passing car of real time scan runway , easy to obtain the profile information of vehicle in real time；The camera is installed in another upright bar of scanning type laser distance measuring sensor driving opposite direction；Region is captured to exist In the scanning type laser distance measuring sensor scanning area and among runway, the chassis for capturing vehicular traffic is believed Breath；The data processing unit is connected by TCP/IP networks with the scanning type laser distance measuring sensor, described for handling The information that scanning type laser distance measuring sensor obtains, triggers when detecting the scanning of scanning type laser distance measuring sensor to twins and takes the photograph As head is captured；It is connected with the camera, the image information captured for handling the camera, and analyze in image and whether contain There is axle housing structure to determine whether drive shaft.
- 2. device according to claim 1, it is characterised in that the scanning type laser distance measuring sensor scanning direction is preferred Perpendicular to runway direction, setting height(from bottom) is 1~2 meter apart from ground；The camera setting height(from bottom) apart from 0.5 meter of ground with Under；The candid photograph region is in scanning type laser distance measuring sensor scanning area and positioned at 1~2 meter among runway.
- 3. device according to claim 1, it is characterised in that the camera is preferably mounted at the scanning type laser and surveys Away from sensor homonymy, setting height(from bottom) is 0.2 meter apart from ground, and scanning type laser distance measuring sensor described in horizontal distance is 2~4 Rice, is 0~1 meter apart from lane boundary；Angle is captured with direction of traffic into 30~45 degree of angles, with the horizontal 0~20 degree of folder Angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721440184.9U CN207319252U (en) | 2017-10-30 | 2017-10-30 | A kind of vehicle drive shaft identification device based on laser sensor and camera |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721440184.9U CN207319252U (en) | 2017-10-30 | 2017-10-30 | A kind of vehicle drive shaft identification device based on laser sensor and camera |
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| CN207319252U true CN207319252U (en) | 2018-05-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686107A (en) * | 2019-02-15 | 2019-04-26 | 北京极点触碰科技有限公司 | A kind of intelligent transport vehicle vehicle bottom identifying system |
-
2017
- 2017-10-30 CN CN201721440184.9U patent/CN207319252U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686107A (en) * | 2019-02-15 | 2019-04-26 | 北京极点触碰科技有限公司 | A kind of intelligent transport vehicle vehicle bottom identifying system |
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| GR01 | Patent grant | ||
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| CP02 | Change in the address of a patent holder |
Address after: 430070 Hubei Wuhan East Lake New Technology Development Zone, Optics Valley Road 77, financial backstage service center base construction phase two phase B5 6-7 story 01-04 room Patentee after: Wuhan Wan Ji Information Technology Co., Ltd Address before: 100085 Beijing Haidian District Wuhan East Lake New Technology Development Zone, Optics Valley Road 77, financial backstage service center base construction phase two phase B5 6-7 story 01-04 room Patentee before: Wuhan Wan Ji Information Technology Co., Ltd |