CN103578275A - Dynamic single-mode vehicle type identifying method and device - Google Patents
Dynamic single-mode vehicle type identifying method and device Download PDFInfo
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- CN103578275A CN103578275A CN201210253929.6A CN201210253929A CN103578275A CN 103578275 A CN103578275 A CN 103578275A CN 201210253929 A CN201210253929 A CN 201210253929A CN 103578275 A CN103578275 A CN 103578275A
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Abstract
The invention discloses a dynamic single-mode vehicle type identifying method. The method is characterized by comprising the following steps: a, an induction coil sensor after being charged with electricity generates an alternating magnetic field and prepares for collecting data; b, after energy of the alternating magnetic field in the step a is absorbed by a vehicle chassis, change of the inductance value of a coil loop is caused, and the vehicle data are collected; c, the change data of the induction value in the step b are processed through signal selecting and signal shaping and then transmitted to a CPU with the other vehicle data; d, the CPU analyzes the data and determines vehicle types. When the method is used for identifying the vehicle types, the system processes the various collected characteristic data through a CPU vehicle type data model, and then obtains the identification result, when the unusual vehicle types are met, the data model learns again with the unusual vehicle type data as samples, and the identification accuracy of the system is greatly improved through constant self-learning and self-identifying process.
Description
Technical field
The present invention relates to vehicle identifier, particularly a kind of dynamic single mode vehicle type recognition method and apparatus.
Background technology
The fast development of economic society, makes the owning amount cumulative year after year of common people to automobile, has occurred a lot of problems about vehicle management thereupon.For example, due to increasing rapidly of various vehicle fleet sizes, the various vehicles phenomenon of travelling and disturb residents not according to fixed course happens occasionally, and causes traffic order disorderly, masses' inconvenience of going on a journey.Thereby the enforcement lack of standardization of vehicle being identified to the various vehicles of regulation by manpower is not only lost time, and inefficiency, cannot satisfy social needs far away, so people attempt realizing the automatic identification to type of vehicle by technology.The automatic identification of type of vehicle is a perplexing technical barrier, scientific and technical personnel are for many years one after another by infrared, laser, ultrasonic, microwave sounding, linear, nonlinear strain sensor detects, the fuzzy diagnosis of image, figure, or the combination of this several method, even tastes the trail road mode such as directly weigh and realizes the identification to type of vehicle.
On domestic market, wagon detector mainly contains six types, i.e. video detector, Data mining device, ultrasonic detector, infrared detector, Doppler radar ripple detecting device and laser detector.Wherein infrared detector and ultrasonic detector are inconvenient owing to installing, reliability is low is progressively eliminated.Radar detector cannot be differentiated vehicle operating direction and vehicle position or track.Video detector accuracy of detection is low, be subject to environmental interference.Laser detector is applicable to bicycle road, and cost is higher.So far not yet develop more satisfactory, practical identification product.
Summary of the invention
The defect existing in order to overcome above-mentioned prior art, the invention provides a kind of dynamic single mode vehicle type recognition method and apparatus, and cost is low, good reliability, accuracy of detection is high and it is simple to safeguard.
To achieve these goals, technical scheme of the present invention is as follows:
A single mode vehicle type recognition method, comprises the steps:
After a, ground induction coil sensor energising, produce alternating magnetic field and carry out image data and prepare;
In b, step a, alternating magnetic field energy produces the variation of wire loop inductance value collection vehicle data after being absorbed by vehicle chassis;
Inductance value delta data in c, step b passes in the lump CPU with other vehicle datas after signal selection and signal shaping;
D, CPU analyze data and determine type of vehicle.
Ground induction coil sensor of the present invention is more than two.
Alternating magnetic field in step a of the present invention is 60～300KHZ.
Vehicle data parameter in step b of the present invention is the speed of a motor vehicle, vehicle commander, chassis and combination thereof.
The present invention also provides a kind of implement device of dynamic single mode vehicle type recognition method, comprises ground induction coil sensor and scm managing system;
Described scm managing system comprises CPU, crystal oscillator module, watchdog circuit module, reset circuit module, computer interface level shifting circuit module and condition indication circuit module; Described crystal oscillator module, watchdog circuit module, reset circuit module, computer interface level shifting circuit module are connected with CPU respectively with condition indication circuit module;
Described ground induction coil sensor is connected successively with selecting circuit, signal transformation circuit, CPU.
Described in implement device of the present invention, watchdog circuit module, reset circuit module and condition indication circuit module are connected with CPU by I/O communication interface respectively.
Described in implement device of the present invention, ground induction coil sensor is more than two.
The alternating magnetic field that described in implement device of the present invention, ground induction coil sensor produces is 60～300KHZ.
Described in implement device of the present invention, the data parameters of ground induction coil sensor collection is the speed of a motor vehicle, vehicle commander, chassis and combination thereof.
The invention has the beneficial effects as follows, by the software insertion type that vehicle is detected, be arranged in operating system, rely on a large amount of data acquisition, study and training, set up the model data model of fuzzy pattern, when identification, the various characteristics that system acquisition is arrived are processed through model data model, and then draw recognition result, when running into non-common vehicle types, data model will re-start study as sample using this model data, process through constantly learning, identifying, will make system identification accuracy rate greatly improve.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the inventive method;
Fig. 2 is the structural representation of apparatus of the present invention.
In figure, 1, signal transformation circuit, 11, ground induction coil sensor, 2, select circuit, 22, scm managing system, 4, CPU, 5, crystal oscillator module, 6, watchdog circuit module, 7, reset circuit module, 8, computer interface level shifting circuit module, 9, condition indication circuit module, 10, I/O communication interface.
Embodiment:
In order to make creation characteristic of the present invention, technological means and to reach object, be easy to understand understanding, below in conjunction with specific embodiment, further set forth the present invention.
Embodiment:
Referring to Fig. 1, a kind of dynamic single mode vehicle type recognition method, comprises the steps: produce alternating magnetic field and carry out image data and prepare S11 after ground induction coil sensor energising; In vehicle chassis absorption S11, after alternating magnetic field energy, producing wire loop inductance value changes and collection vehicle data S12; Inductance value delta data passes in the lump CPU S13 with other vehicle datas after signal selection and signal shaping; CPU analyzes data and determines type of vehicle S14.
Ground induction coil sensor of the present invention is more than two.
Alternating magnetic field in S11 of the present invention is 60～300KHZ.
Vehicle data parameter in S12 of the present invention is the speed of a motor vehicle, vehicle commander, chassis and combination thereof.
The present invention also provides a kind of implement device of dynamic single mode vehicle type recognition method, comprises ground induction coil sensor 11 and scm managing system 22;
Described scm managing system comprises CPU4, crystal oscillator module 5, watchdog circuit module 6, reset circuit module 7, computer interface level shifting circuit module 8 and condition indication circuit module 9; Described crystal oscillator module 5, watchdog circuit module 6, reset circuit module 7, computer interface level shifting circuit module 8 are connected with CPU4 respectively with condition indication circuit module 9;
Described ground induction coil sensor 11 is connected successively with selecting circuit 2, signal transformation circuit 1, CPU4.
Described in implement device of the present invention, watchdog circuit module 6, reset circuit module 7 and condition indication circuit module 9 are connected with CPU4 by I/O communication interface 10 respectively.
Described in implement device of the present invention, ground induction coil sensor 11 is more than two.
The alternating magnetic field that described in implement device of the present invention, ground induction coil sensor 11 produces is 60～300KHZ.
The data parameters that described in implement device of the present invention, ground induction coil sensor 11 gathers is the speed of a motor vehicle, vehicle commander, chassis and combination thereof.
On the track of needs monitoring, an ahead running traffic direction is buried ground induction coil sensor underground at regular intervals, when detecting, detecting device when vehicle presses first coil, starts timing, when vehicle being detected and pressing second coil, timing finishes, and what now running velocity can calculate by formula goes out.Running velocity=coil-span/vehicle presses the mistiming of two coils.Vehicle length=vehicle presses 1 coil to the time of leaving 1 coil.The vehicle chassis data that gather by coil, then in conjunction with Vehicle length, running velocity data, through algorithm, convert and just can obtain type of vehicle.
The present invention can identify minicar, station wagon, jubilee wagon, middle bus, medium truck, motorbus, high capacity waggon, container truck, medium-sized cleaning cart, heavy goods vehicle.
During coil collection vehicle chassis-date, the data that mainly headstock of vehicle, vehicle body and the tailstock gathered are carried out segmentation, and segmentation is more, resolution is higher, recognition effect to type of vehicle is better, and the present embodiment is headstock data to be divided into two sections: VO1 and VO2; Vehicle body data are divided into three sections: VO3, VO4 and VO5; Tailstock data are divided into two sections: VO6 and VO7.VO1～VO7 is carried out can telling type of vehicle after algorithm substitution ratio again.
Shown in the following chart of chassis collection parameter and recognition effect:
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (9)
1. a dynamic single mode vehicle type recognition method, is characterized in that, comprises the steps:
After a, ground induction coil sensor energising, produce alternating magnetic field and carry out image data and prepare;
In b, step a, alternating magnetic field energy produces the variation of wire loop inductance value collection vehicle data after being absorbed by vehicle chassis;
Inductance value delta data in c, step b passes in the lump CPU with other vehicle datas after signal selection and signal shaping;
D, CPU analyze data and determine type of vehicle.
2. recognition methods according to claim 1, is characterized in that, described ground induction coil sensor is more than two.
3. recognition methods according to claim 1, is characterized in that, the alternating magnetic field in described step a is 60～300KHZ.
4. recognition methods according to claim 1, is characterized in that, the vehicle data parameter in described step b is the speed of a motor vehicle, vehicle commander, chassis and combination thereof.
5. an implement device for dynamic single mode vehicle type recognition method, is characterized in that, comprises ground induction coil sensor and scm managing system;
Described scm managing system comprises CPU, crystal oscillator module, watchdog circuit module, reset circuit module, computer interface level shifting circuit module and condition indication circuit module; Described crystal oscillator module, watchdog circuit module, reset circuit module, computer interface level shifting circuit module are connected with CPU respectively with condition indication circuit module;
Described ground induction coil sensor is connected successively with selecting circuit, signal transformation circuit, CPU.
6. implement device according to claim 5, is characterized in that, described watchdog circuit module, reset circuit module and condition indication circuit module are connected with CPU by I/O communication interface respectively.
7. implement device according to claim 5, is characterized in that, described ground induction coil sensor is more than two.
8. implement device according to claim 5, is characterized in that, the alternating magnetic field that described ground induction coil sensor produces is 60～300KHZ.
9. implement device according to claim 5, is characterized in that, the data parameters of described ground induction coil sensor collection is the speed of a motor vehicle, vehicle commander, chassis and combination thereof.
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| CN201210253929.6A CN103578275B (en) | 2012-07-21 | 2012-07-21 | A kind of dynamic single mode vehicle type recognition method and apparatus |
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| CN201210253929.6A CN103578275B (en) | 2012-07-21 | 2012-07-21 | A kind of dynamic single mode vehicle type recognition method and apparatus |
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| JPH11296787A (en) * | 1998-04-08 | 1999-10-29 | Kenwood Corp | Vehicle detector |
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| CN201072600Y (en) * | 2007-08-22 | 2008-06-11 | 沈阳聚德视频技术有限公司 | State detecting and control device of vehicle license plate automatic recognition system |
| CN101311982A (en) * | 2007-05-22 | 2008-11-26 | 深圳市哈工大交通电子技术有限公司 | Vehicle assorted check detection device and method |
| CN101833862A (en) * | 2009-11-06 | 2010-09-15 | 中山大学 | False-detection resistant annular coil vehicle detector |
| KR101017680B1 (en) * | 2008-11-19 | 2011-02-25 | 이용인 | Apparatus for gathering vehicle information of wheel |
| CN202102593U (en) * | 2011-06-29 | 2012-01-04 | 广州市图之灵计算机技术有限公司 | Automatic vehicle type classification system |
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2012
- 2012-07-21 CN CN201210253929.6A patent/CN103578275B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11296787A (en) * | 1998-04-08 | 1999-10-29 | Kenwood Corp | Vehicle detector |
| CN2434746Y (en) * | 2000-07-21 | 2001-06-13 | 北京易地平方信息技术有限公司 | Vehicle automatic classification device |
| CN101311982A (en) * | 2007-05-22 | 2008-11-26 | 深圳市哈工大交通电子技术有限公司 | Vehicle assorted check detection device and method |
| CN201072600Y (en) * | 2007-08-22 | 2008-06-11 | 沈阳聚德视频技术有限公司 | State detecting and control device of vehicle license plate automatic recognition system |
| KR101017680B1 (en) * | 2008-11-19 | 2011-02-25 | 이용인 | Apparatus for gathering vehicle information of wheel |
| CN101833862A (en) * | 2009-11-06 | 2010-09-15 | 中山大学 | False-detection resistant annular coil vehicle detector |
| CN202102593U (en) * | 2011-06-29 | 2012-01-04 | 广州市图之灵计算机技术有限公司 | Automatic vehicle type classification system |
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