CN2188517Y

CN2188517Y - Program control protector for vehicle

Info

Publication number: CN2188517Y
Application number: CN94226293U
Authority: CN
Inventors: 张宏伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-24
Filing date: 1994-02-28
Publication date: 1995-02-01
Anticipated expiration: 2004-02-28

Abstract

The utility model relates to a program control protector for vehicle, which is composed of a main circuit box, a circuit board in the box, a microprocessor on the circuit board, an alarm voice audio generating circuit which is controlled by the microprocessor, an audio power amplification circuit which is continued on the back of the alarm voice audio generating circuit and an operation keyboard which is connected with the mainframe box. The theft and robbery to an automobile can be reliably and efficiently prevented.

Description

Program control protector for vehicle

The utility model relates to a kind of vehicle anti-theft and anti-robbing raid device of program storage control.

Automobile is stolen to be got more and more by the robbery incident, is necessary to take measures to prevent the generation of this type of incident.Though the vehicle anti-theft and anti-robbing raid device of electronic circuit was arranged in the past, have following major defect and problem to some extent: 1. use simple alarm control circuit, make horn trumpet send " ticking " sound, be difficult for arousing vigilance, effect is bad.2. what adopt is discrete circuitry, and integrated level is low, and the function expansion is inconvenient, and reliability is low, and the production difficulty is bigger.

The purpose of this utility model is to provide a kind of audio alert function that has, the integrated level height, and the reliability height is convenient to expanded function, and what be convenient to produce prevents the stolen program control automotive security device of being plundered of automobile.

The purpose of this utility model is achieved in that a plate printed circuit board is set in the power circuit box, microprocessor is set on the plate, is subjected to the alarm voice audio generating circuit of microprocessor control and the audio power amplifying circuit of back continued access thereof, and an operation keyboard that interrelates with host box that be convenient to driver operation is set.

When needs extending radio warning function, can the radiowarning transmission circuit be set at the remote alarm interface place of host box, and the reception radiowarning transmission circuit institute give a signal that relative set is worn by the driver sends the receptor that the news of reporting to the police are rung in good time.

When the driver passes through keyboard, be input to password in the microprocessor when correct, connect car engine start loop and priming supply by microprocessor by its auxiliary circuit, automobile can normal starting and driving, otherwise, error code, trimming, short circuit is taken fire, sincere lid is drawn in unlatching, car door and start vehicle by force and all can make microprocessor obtain an energizing signal by the auxiliary circuit of microprocessor, microprocessor starts voice alarm circuit immediately, audio frequency is output after power amplifier amplifies, promote external loud speaker, send cry such as " someone steals car ", for the protector with extending radio warning function, the receptor that the driver wears also can receive the signal of projector and send chimes of doom.Microprocessor is by the start loop and the priming supply of its auxiliary circuit shutoff automotive engine simultaneously, and automobile can't start.

Click the set button before the car of place, the utility model is placed in the anti-theft alarm state.

If drive to meet on the way when plundering, can click the set knob, after microprocessor receives this signal, by its auxiliary circuit, turn-off car engine start loop and priming supply by microprocessor, automobile flameout and locking, make automobile enter anti-robbery state, play the effect that prevents that automobile from being robbed.

The utility model uses microprocessor control, all logic functions and operation program are all realized in microprocessor, therefore, the utility model integrated level height, reliability height, be convenient to stock production, audio alert is true to nature understandable, can arouse vigilance effectively, respond well, and be convenient to the extended wireless warning function.The utility model can prevent reliably and effectively that automobile is stolen and be plundered.

Accompanying drawing 1 is a scheme drawing of the present utility model

Accompanying drawing 2 is a circuit diagram of the present utility model

Below in conjunction with most preferred embodiment of description of drawings.

The utility model is mainly by circuit box (1), circuit card (4) in the box, microprocessor (2), warning circuit (3), supervisory keyboard (7) and top status indicator lamp (5) and set button (6) thereof are formed, the power circuit box is installed in suitable position in the operator's compartment, and operation keyboard is arranged at the position that makes in driver operation.

Working power of the present utility model is DC12V, and power lead positive pole (8) and negative pole (9) are connected to both ends of power.

Central module of the present utility model is one chip microcomputer (hereinafter to be referred as " micro controller system ") D101.

Five major parts with regard to the SCM peripheral circuit are described in detail as follows below:

1. the reset circuit of micro controller system is made of the RC loop of R103 and C104, reset signal enters from pin 9, and after the energized, the high level of 9 pin blink interior (value that is decided by RC) resets micro controller system, complete machine enters mode of operation, status lamp VD105(5) glittering.

2. micro controller system 13 pin output alarm signals, when reporting to the police, 13 pin outgoing currents make V108, V109 conducting in succession.Relay K 3 adhesives, power line voltage+12V is added on power amplifier N107 and the voltage stabilizer N106 through contact K3, N106 output 5V burning voltage is added on the sound circuit D102, the sound signal of the 10 pin output of D102, through R108, C111 filtering high-frequency cacophony, be added on the power amplifier N107 through C112, audio alert power signal after the amplification is through output line SPEAK(14), (15) output, directly promote external loudspeaker and report to the police, contact K3 also general+12V power supply causes radiowarning unit (RADIO UNIT among the figure) and can expand to easily and have the radiowarning function.

3. the base stage of aerotron V104～V107 is connected to output pin 24～27 pin of micro controller system, export the line scan signals of micro controller system by the collecting electrode of aerotron to keyboard, the output triode of photoelectrical coupler N103～N104 is connected to micro controller system input pin 21～23, is used to receive the row response message of keyboard.Judged whether a key to be pressed and closure.For example, when 27 pin outgoing currents, the V104 conducting, simultaneously, 22 pin have been received low level acknowledge signal, and closed connection of infall of first row and secondary series is described, and micro controller system decision bond " 2 " is pressed, and in like manner, other 11 keys also can be discerned by micro controller system.

4. the output triode of photoelectrical coupler N102 is connected with micro controller system pin 6, N102 and auxiliary circuit thereof are used for the sensing external event: I. when bonnet is opened, car door opening, be serially connected in STR2(10) switch cut off, power supply is through R106, it is electric that VD104 gets N102, and micro controller system pin 6 obtains negative saltus step.If II. play moving-wire STR2(11) cut off, micro controller system pin 6 obtains negative saltus step equally.III. open car key, or with ignition wire RUN(12), (13) overlap joint power supply, it is electric by diode VD105 or VD106 and resistor R 107 N102 to be got, micro controller system 6 pin obtain a negative saltus step.In a word, negative saltus step occurred on the pin 6 of micro controller system, micro controller system has recognized car incident generation steathily.

5. 2 outputs of micro controller system pin allow the normal vehicle signal that uses.When 2 pin output low levels are ended V102, its collector potential rises, form the base current of V103 through R105, make the V103 conducting, relay K 1 and K2 get electric adhesive, made moving-wire STR1(10) and STR2(11) and ignition control line RUN(12), (13), connect mutually respectively, allow the normal automobile that uses.

Logic function of the present utility model and operation program, all in the inner realization of micro controller system, therefore, the utility model integrated level height, reliability height, advanced technology are convenient to stock production.

Claims

1, a kind of program control automotive security device, comprise power circuit box (1) and box interior circuit board (4), it is characterized in that alarm voice audio generating circuit and the audio power amplifying circuit (3) of back continued access and the operation keyboard (7) that interrelates with host box that the circuit card in the box is provided with microprocessor (2) and controlled by microprocessor.

2, program control automotive security device according to claim 1 is characterized in that described microprocessor is an one chip microcomputer.

3, program control automotive security device according to claim 1 is characterized in that can also being provided with the radiowarning transmission circuit that is controlled by main frame at the main frame place and the reception radiowarning transmission circuit institute give a signal of being worn by the driver accordingly sent the receptor that the news of reporting to the police are rung in good time.