CN2407993Y

CN2407993Y - Time limited anti-theft device for leasing car

Info

Publication number: CN2407993Y
Application number: CN99235069U
Authority: CN
Inventors: 张光晟
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-05
Filing date: 1999-11-05
Publication date: 2000-11-29
Anticipated expiration: 2009-11-05

Abstract

The utility model relates to an intelligent time limiting theftproof device for leasing a car. The information of a detected IC card 1 is transmitted to a computer processing unit 6 for comparison and discrimination by an IC card reading and writing device 3, and commands are transmitted to a car oil valve 8, an igniter 11, a motor 12 and a memory 13 to make the theftproof device work. When the time effect of an IC card is exceeded or an illegal card is inserted, the car can not be started and used. The device greatly solves the dilatory problems of the overtime use of cars, default cost, stolen cars, etc. in leasing companies.

Description

The renter car anti-joyride device of prescribing a time limit

The utility model relates to a kind of automobile anti-joyride device of prescribing a time limit, particularly a kind of device that uses and prevent to usurp for renter car in limited time.

Along with the progress of society, the automobile leasing and renting industry develops rapidly as a kind of emerging industry in national big and medium-sized cities, greatly facilitates the masses according to no car, also can solve the difficulty of vehicle deficiencies such as some enterprises and institutions, public organization.But problems thereupon also occurred, it is more serious to be in arrears with the car rental cost phenomenon such as some ripe tenants, long-lease tenant, and overtime use happens occasionally.Cheated, the stolen situation of vehicle is more and more besides, becomes the comparison serious social concern, also brings bigger economic loss to leasing company simultaneously, and this kind of thing often need to pay the human and material resources processing, disturbed its normal operation order greatly.

The purpose of this utility model just is to overcome the shortcoming described in the background technology, and provides a kind of integrated circuit and microprocessor of utilizing that the device that the bicycle counterpart is managed, used and have anti-theft feature is in limited time carried out in Car Rental.

To achieve these goals, the utility model proposes corresponding concrete technical solution:

This renter car intelligence anti-joyride device in limited time has a shell, and it mainly is that of computer processing unit imports/go out end interface and the IC-card read write line joins, and also is connected with clock and booster circuit on this computer processing unit.Said booster circuit is serially connected between computer processing unit and the automobile fuel tap.Computer processing unit also is connected to memory device and annunciator.

Fig. 1: circuit block diagram of the present utility model.

Fig. 2: logic block-diagram of the present utility model.

Fig. 3: the circuit diagram of computer processing unit.

Fig. 4: clocking scheme.

Fig. 5: memory circuitry figure.

Fig. 6: IC-card read write line circuit diagram.

Fig. 7: booster circuit figure.

Fig. 8: alarm circuit figure.

Fig. 9: relay switching circuit figure.

Figure 10: external control circuit figure.

Below in conjunction with accompanying drawing the utility model is done an explanation.

As shown in Figure 1, the utility model mainly is made up of clock 14, memory device 13, IC-card read write line 3, keyboard 4, booster circuit 7, external control circuit 9 and annunciator more than 5 partly integrated circuit blocks combination computer processing unit 6 direct connections in the enclosure.Wherein, the voltage range of booster circuit 7 is 24～120V, and making the fuel tap circuit directly insert automobile power source can not open, in order to the action of Control of Automobile fuel tap 8; External control circuit 9 Control of Automobile motors 10, firing unit 11 and other circuit 12.

Described computer processing unit 6 adopts GMS97C51 integrated circuit (referring to Fig. 3), the model of IC-card read write line 3 is ICCE (referring to Fig. 6), the model of clock 14 is DS1302 (referring to Fig. 4), memory device 13 is X25045 (referring to Fig. 5), external control circuit 9 is MC1413 (referring to Figure 10), and booster circuit 7 rises to 24 volts (referring to Fig. 7) with 12 volts of automobile power sources.

As depicted in figs. 1 and 2, on the IC-card that uses with this matched with devices by automobile rental corporation by microcomputer management system with timeliness (i.e. Yue Ding period of service), main secret key, secondary secret key, license plate number, tenant's identification card number and special purpose system.The tenant is write at any time by microcomputer management system when hiring a car, one-car-one-card, and the IC-card special purpose system of at every turn hiring a car is all inequality.During tenant's in-use vehicle, use earlier the car key opening power, again IC-card 1 is inserted IC-card read write line 3, computer processing unit 6 is read IC-card 1 internal information, from clock 14 and memory device 13, read information again, after 6 contrasts of machine processing unit are differentiated as calculated, send instruction and give external control circuit 9, decision is switched on or switched off

relay switch

10,11,12 (referring to Fig. 9), and provides corresponding indicating signals by light-emitting diode.If the IC-card I that inserts is legal card, after then handling automobile circuit, fuel tap 8 are opened by computer processing unit 6, automobile normally starts.When extracting IC-card 1 or inserting illegal IC-card, send instruction after the 6 contrast identifications of machine processing unit as calculated, automobile circuit, fuel tap 8 are closed naturally, automobile then can not start.When clock 14 demonstrations also remained two hours, the amber light of annunciator 5 (referring to Fig. 8) was bright, and the prompting tenant gives back institute's rent automobile as early as possible.If when legal IC-card 1 overtime use or insertion illegally blocked, the red light of annunciator 5 was bright.When the tenant fails to give back automobile for some reason on time, as long as the timeliness one of IC-card 1 arrives, then send instruction by computer processing unit 6, automobile circuit, fuel tap 8 are closed simultaneously, and automobile then can not continue to use.At this moment, the tenant can get in touch by phone or alternate manner and leasing company, and after company agreed to prolong timeliness and licencing key, the tenant just can be by keyboard 4 input new passwords, and machine processing unit 6 is differentiated errorless back automobile and can normally be started use again as calculated.

This device adopts large-scale integration circuit and IC-card to be used, solved the overtime problem of using and being in arrears with lease expenses of renter car to greatest extent, ensured that leasing company is to the management of each car and the timely recovery of expense, the various interference that bring to leasing company because of these things have also been avoided, to guarantee normally carrying out of every order of work.Also because this device adopts the action of booster circuit Control of Automobile fuel tap, make the fuel tap circuit directly insert automobile power source, even this device complete removal is connected automobile power source, the automobile fuel tap also can not move, so automobile can not start operation, thereby has good theftproof performance.

Claims

1, the intelligent anti-joyride device in limited time of a kind of renter car, it has a shell, it is characterized in that of computer processing unit (6) imports/go out end interface and IC-card read write line (3) joins, also be connected with clock (14) and booster circuit (7) on this computer processing unit (6).

2, anti-joyride device in limited time as claimed in claim 1 is characterized in that said booster circuit (7) is serially connected between computer processing unit (6) and the automobile fuel tap (8).

3, anti-joyride device in limited time as claimed in claim 1 is characterized in that computer processing unit (6) also is connected to memory device (13) and annunciator (5).