CN202632539U

CN202632539U - Vehicle recognizing system

Info

Publication number: CN202632539U
Application number: CN 201220064454
Authority: CN
Inventors: 李雷
Original assignee: SHANGHAI PEIYU INFORMATION TECHNOLOGY CO LTD
Current assignee: SHANGHAI PEIYU INFORMATION TECHNOLOGY CO LTD
Priority date: 2012-02-27
Filing date: 2012-02-27
Publication date: 2012-12-26
Anticipated expiration: 2022-02-27

Abstract

The utility model discloses a vehicle recognizing system including a judgment logic circuit; a wireless transmission module connected with the judgment logic circuit and keeping communicational connection with a remote system; an infrared sensor connected with the judgment logic circuit; and a magnetic field sensor connected with the judgment logic circuit. Compared with an accuracy rate of 70 percents when using the magnetic field sensor exclusively in the prior art, since the vehicle recognizing system provided by the utility model adopts recognition technology of a compound sensor, the accuracy rate is improved substantially to higher than 99.5 percents in actual measurement.

Description

A kind of vehicle identification system

Technical field

The utility model relates to the recognition system of vehicle parking situation in a kind of parking lot, relates in particular to a kind of vehicle identification system.

Background technology

Along with the develop rapidly of China's automobile industry, the problem of city " difficulty of parking " is quite serious, improves park situation and parking facility; Raise the efficiency extremely urgent; And the Chinese large-sized parking lot does not still possess the intelligent car position management system at present, mostly is by the parking lot staff management to be distinguished in the parking stall, for the user; Place oneself in the midst of in the large parking lot; Arrive fast still difficulty relatively of parking position, so just cause the parking lot overall operation efficiency low, in addition can because stop be inconvenient to cause managerial confusion.

In recent years; Gradually different recognition technologies have been adopted in the unartificial detection of parking position on the market; For example wireless magnetic field recognition system; But wireless magnetic field recognition system can not be got rid of the magnetic interference on adjacent parking stall, receives that the magnetic field of the earth is periodically variable to be influenced, and actual recognition accuracy has only 70%.

In view of vehicle recongnition technique on the market not as people's will, the operational efficiency that how to improve parking occupancy management system has been the problem that presses for solution.

The utility model content

The utility model is low for the operational efficiency that solves above-mentioned parking occupancy management system, and its accuracy, security and stability are difficult to technical matterss such as realization, and a kind of vehicle identification method and recognition system are provided; This vehicle identification method and recognition system can realize high efficiency, energy-conservationization, the environmental protectionization of parking lot operation; Be used for the parking stall guiding in parking lot, strengthen the information system management in parking lot, control stably, management vehicle turnover; Save time, make the parking lot image perfect more.

For realizing above-mentioned technical matters, the utility model discloses a kind of vehicle identification system, said system comprises

One decision logic circuit;

One wireless transport module, said wireless transport module connect said decision logic circuit and keep communication to be connected with remote system;

One infrared sensor; Said infrared sensor comprises an infra-red ray transmitting unit and an infrared ray receiving element; Said infra-red ray transmitting unit and said infrared ray receiving element lay respectively at dividing plate both sides, and said infra-red ray transmitting unit is connected said decision logic circuit with said infrared ray receiving element;

One magnetic field sensor, said magnetic field sensor connect said decision logic circuit.

The utility model has been obtained preferable beneficial effect:

The utility model has adopted compound sensor (magnetic field sensor and infrared sensor); The feedback signal of decision logic circuit combined magnetic field sensor and infrared sensor; Draw a vehicle identification status data through differentiating algorithm; Significantly improve the reliability of judging the parking space information that has or not vehicle parking, reduce erroneous judgement.70% accuracy rate when using magnetic field sensor with tradition is single is compared significantly and is improved, and actual measurement can reach more than 99.5%.And adopt the vehicle identification method power consumption of the utility model extremely low, battery-operated can work 5 years need not wiring, easy construction.

Description of drawings

Fig. 1 is the structural representation of a preferred embodiment of the utility model vehicle identification system;

Fig. 2 for the typical vehicle of the utility model vehicle identification system stop into decision logic circuit curve map;

Fig. 3 is that the utility model vehicle identification system foreign matter disturbs the decision logic circuit curve map of (personnel);

Fig. 4 perhaps has car to stop fashionable decision logic circuit curve map in adjacent parking stall for the utility model vehicle identification system bicycle.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.

Of Fig. 1, the utility model vehicle identification system 10 comprises a decision logic circuit 11; One wireless transport module 12, said wireless transport module 12 connect said decision logic circuit 11 and keep communication to be connected with remote system; One infrared sensor 13, said infrared sensor 13 connects said decision logic circuit 11, and this infrared sensor 13 mainly is made up of an infra-red ray transmitting unit and an infrared ray receiving element; One magnetic field sensor 14, said magnetic field sensor 14 connects said decision logic circuit 11.

The principle of work of the utility model vehicle identification system 10 is following:

1) sails the parking stall into when vehicle; The infrared ray of the infra-red ray transmitting unit emission in the infrared sensor 13 of place reflects when running into vehicle; Receive by the infrared ray receiving element, and the feedback signal that in real time parking stall, detected place infrared ray is changed is emitted to decision logic circuit 11;

The variation in magnetic field when the magnetic field sensor 14 that 2) is installed on ground surface is sensed vehicle simultaneously and got into or leave, and in real time the feedback signal of parking stall, detected place changes of magnetic field is emitted to decision logic circuit 11;

3) said decision logic circuit 11 collects the feedback signal of the feedback signal of the infrared sensor that receives 13 and magnetic field sensor 14 in self system; Judge through the decision logic Algorithm Analysis; Comprehensively draw a vehicle identification status data, this vehicle identification status data is passed to wireless transport module 12 in real time;

4) said wireless transport module 12 receives the said vehicle identification status data that said decision logic circuit 11 sends in real time; And be passed to remote system in real time; Remote system is obtained parking space information; Real-time and effective is precisely to the operating position (because of remote system is a prior art, being not going to repeat) of each parking stall.

5) driver arrives parking lot (position guiding) according to the guide of electronic display; Find berth (parking stall guiding) through the display device in the field; And park change or the original parked vehicles of back parking stall state of driver left the change of parking stall state behind the parking stall; Can both be collected by logic judging circuit 11 in real time, logic judging circuit 11 just can draw another vehicle identification status data.

Said decision logic circuit 11 can be discerned the numerical characteristics of infrared sensor 13 and magnetic field sensor 14, gets rid of bicycle, personnel's etc. interference, and the practical implementation function is explained with accompanying drawing 2, accompanying drawing 3 and accompanying drawing 4.

In the circuit diagram as shown in Figure 2, after the unordered fluctuation in magnetic field, in another platform stable, infrared level raises (receiving reflection), forms a typical vehicle and stops into curve; Magnetic field does not have disturbance in Fig. 3, during only infrared variation, is not that vehicle stops into causing, and possibly be that the someone passes through; And for example shown in the circuit diagram of Fig. 4, magnetic field and infrared ray all change, but light change obviously with vehicle through the time the step variation different, possibly be bicycle, perhaps adjacent parking stall have car stop into.The curve map that feeds back to similar Fig. 2 when said decision logic circuit 11 be exactly vehicle stop into or roll away from.

The vehicle identification system of the utility model is owing to adopted the recognition technology (magnetic field sensor 14 and infrared sensor 13) of compound sensor; The feedback signal of decision logic circuit 11 combined magnetic field sensors 14 and infrared sensor 13 is judged parking space information through differentiating algorithm synthesis, has improved accuracy, security and the stability of the utility model vehicle identification system 10 greatly; 70% accuracy rate when using magnetic field sensor 14 with tradition is single is compared significantly and is improved; Actual measurement can reach more than 99.5%, and the utility model power consumption is extremely low simultaneously, battery-operated can work 5 years; Need not wiring, easy construction.

The utility model has realized that the person of parking conveniently stops; And the parking stall monitored, make parking position manage more standard, in order, improve the parking stall utilization factor; The parking stall detector adopts infrared sensor 13 and magnetic field sensor 14 to combine in the parking lot; Decision logic circuit 11 collects the feedback signal of all detections in self system in real time, draws on this parking stall to have or not the situation of parking, and in time is delivered to wireless transport module 12 and comes guided vehicle to berth.

Claims

1. a vehicle identification system is characterized in that said recognition system comprises

One decision logic circuit;