CN2181048Y

CN2181048Y - Automatic identifying and recording apparatus fornumber board of motive vehicle

Info

Publication number: CN2181048Y
Application number: CN 93229500
Authority: CN
Inventors: 高绪明; 孔祥林; 聂立业; 王刚; 方修泽; 刘天慧; 聂森林
Original assignee: Public Security And Traffic Engineering Tech Inst Shenyang City
Current assignee: Public Security And Traffic Engineering Tech Inst Shenyang City
Priority date: 1993-10-19
Filing date: 1993-10-19
Publication date: 1994-10-26
Anticipated expiration: 2003-10-19

Abstract

The utility model discloses an automatic identifying and recording apparatus for the number plates of the motor vehicles. The utility model is composed of two video cameras, two sensors, an image processor, an interrupt control processor, an audible and visual alarm, a video display, and a computer. The utility model can fully make use of the interrupt processing technology of the computer; the utility model can realize the dynamic identifying and recording operation for the number plates of the motor vehicles of the bidirectional single lane and the unidirectional double lane; the collecting operation of the image of the number plates of the motor vehicles can be successfully completed once, so that the utility model doesn't need to carry out the circulating collection so as to enhance the reliability of the image collecting operation. The utility model can be widely applied to the field of the traffic control, for example the automatic identifying and recording operation of the number plates of the motor vehicles in the traffic checking station, the escaping event of the traffic accident crime capturing operation, the stolen vehicles, the automatic fee charging in the parking lot and the highways, etc.

Description

Automatic identifying and recording apparatus fornumber board of motive vehicle

The utility model relates to a kind of traffic control equipment, and particularly a kind of automotive number plate is discerned registering apparatus automatically.

Number plate is the important and notable attribute of motor vehicles, it is the indispensable data message of vehicle management, existing number plate of vehicle identification registering apparatus mainly contains two kinds: a kind of is to adopt the initiatively mode of carrier, promptly on each vehicle information launcher is housed, and observation station is equipped with corresponding receiver devices.When vehicle passes through observation station, discern registration after the information that receiving trap reception vehicle emitter sends.This mode has significant limitation, and involves great expense, and is difficult in maintenance, and easily misses knowledge because of being subjected to interference error code to occur; Another kind is to adopt Computer Recognition Technology to carry out number plate identification, but the registering apparatus of this kind identification at present can only be realized the Dynamic Recognition registration of folk prescription to bicycle road number plate of vehicle, then is difficult to carry out the Dynamic Recognition registration for folk prescription to two-way traffic, the one-lane number plate of vehicle of twocouese.In addition, this kind identification registering apparatus needs repeatedly circle collection sometimes when images acquired, make like this speed of a motor vehicle faster the number plate of vehicle image usually can lose.

At the deficiency that above-mentioned prior art exists, the purpose of this utility model provides that a kind of cost is low, reliability is high and can realize unidirectional two-way traffic or the number plate of vehicle identification registering apparatus of two-way bicycle road motor vehicles number plate Dynamic Recognition registration.

The purpose of this utility model is achieved by the following technical solution: it comprise place detect in the surveyed area vehicular traffic put in place situation photoelectric sensor and absorb on the vehicular traffic and contain the video camera of number plate area image and the image processor that links to each other with computing machine with video camera, photoelectric sensor and video camera all respectively are two (platforms), the output terminal of two sensors links to each other with the interrupt interface of computing machine through the interrupt control processor, the output control terminal of computing machine interface chip in the interrupt control processor links to each other with audible-visual annunciator, and the output terminal of D/A change-over circuit also connects the video display that can trace and monitor pickup image in the image processor.When vehicle process check point, photoelectric sensor is delivered to the interrupt control processor with detection signal, interrupt control signal by this processor output is delivered to computing machine, produce interrupt procedure, deposit in the image processor by number plate of vehicle image moment of interrupt procedure control image processor the video camera picked-up, by computing machine the image of storage is analyzed at last, obtain a result, when two-way simultaneous is sent a car or unidirectional two-way traffic is sent a car simultaneously, the interrupt control processor is exported two interrupt control signals simultaneously, and computing machine can be handled by order according to priority after receiving two interrupt control signals one by one.If when the wanted license plate number of storing in the license plate number of a certain vehicle and the computing machine in the vehicular traffic was identical, computing machine sent alarm signal, by audible-visual annunciator generation sound and light alarm.

The utility model has the advantages that: make full use of the computing machine interrupt processing technology, both can realize unidirectional one-lane number plate of vehicle registration, can realize the number plate of vehicle registration of two-way bicycle road or unidirectional two-way traffic again, make it to be very practical, in addition, the collection of number plate of vehicle image is success once, need not circle collection, can not make the number plate of vehicle missing image, improve the reliability of image acquisition greatly.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the utility model circuit block diagram.

Fig. 3 is interrupt control processor and sound and light alarm circuit schematic diagram.

With reference to accompanying drawing, the utility model is mainly by two photoelectric sensors 1,2(VSNE180), two video cameras 3,4(TC354X), computing machine 9(AST486), image processor 11(VC32Plus), interrupt control processor 12, audible-visual annunciator 13, video display 6(9 cun black-and-white monitor) constitute, wherein the electrical equipment of image processor 11, interrupt control processor 12 and audible-visual annunciator 13 places in the housing 5, and hummer 7 in the audible-visual annunciator and alarm lamp 8 place on the front panel of housing 5; Interrupt control processor 12 is made of a slice interface chip 8255, two-way input optocoupler J113, two trigger LS123 and interface card address decoder 74LS138,74LS08.When vehicle sails check point into, photoelectric sensor 1 or 2 output currents are zero, photoelectrical coupler J113 output high level is given trigger LS123, after shaping, 5 pin of trigger LS123 or 13 pin are promptly exported interrupt interface IRQ3 or the IRQ5 end that computing machine 9 is sent in a narrow positive transition pulse, computing machine is produced to interrupt, by image processor 11

control video cameras

3 or 4 picked-up number plate of vehicle images, and this picture signal deposited in the image processor 11, simultaneously, sail into to when rolling check point away from from vehicle, the high level signal of photoelectrical coupler J113 output inputs to the PA mouth of 8255 interface chips, judge and deal with data that for computing machine if produce when interrupting simultaneously, computing machine can be handled one by one by priority; Audible-visual annunciator 13 is by relay J 1, J2, triode T1, T2, diode D1, D2 and hummer 7(FQ1, FQ2), alarm lamp 8(ZD1, ZD2) constitute.When the number plate of vehicle that sails check point into is identical with wanted number plate of vehicle in being stored in computing machine 9, computing machine sends alarm signal, the PB mouth output high level of this moment 8255, drive triode T1 or T2 conducting, make relay J 1 or J2 adhesive, its junction closure, control hummer FQ1 or FQ2, alarm lamp ZD1 or ZD2 send sound and light alarm.For the ease of query statistic record result, computing machine 9 can connect a printer 10 (EPSON, 1600K).

Claims

1, a kind of automotive number plate is discerned registering apparatus automatically, it comprise place detect in the surveyed area vehicular traffic put in place situation photoelectric sensor and absorb on the vehicular traffic and contain the video camera of number plate area image and the image processor that links to each other with computing machine with video camera, it is characterized in that sensor and video camera all respectively are two (platforms), the output terminal of two sensors links to each other with the interrupt interface of computing machine through the interrupt control processor, the output control terminal of computing machine interface chip in the interrupt control processor links to each other with audible-visual annunciator, and the output terminal of D/A change-over circuit also connects the video display that can trace and monitor pickup image in the image processor.