CN2509034Y

CN2509034Y - Vehicle oil-way antitheft lock

Info

Publication number: CN2509034Y
Application number: CN01267856U
Authority: CN
Inventors: 尚继刚
Original assignee: XINKAIDA ELECTRONIC CO Ltd SHENZHEN CITY
Current assignee: XINKAIDA ELECTRONIC CO Ltd SHENZHEN CITY
Priority date: 2001-10-22
Filing date: 2001-10-22
Publication date: 2002-09-04
Anticipated expiration: 2011-10-22

Abstract

The utility model provides an anti-theft lock for the car oil pipe, which consists of a radio frequency digital code control circuit and a locking device; wherein the locking device is a constantly close type oil resistant electromagnetic valve arranged in the pipeline from the outlet of the oil pipe of oil tank to the inlet of the oil pipe of the motor of the car. Due to the utility model, the car cannot be started no matter the thief shuts off the electricity or joins the oil lines. Compared with the prior anti-theft technology for the car, the utility model is more safe, reliable, economical, and durable, and has simple operation and high security.

Description

Automobile oil circuit anti-theft column lock

Technical field

The utility model relates to a kind of anti-theft control device that is used for automobile.

Background technology

The car alarm of Xiao Shouing comprises two kinds of electronic anti-theft device and network monitoring Car Burglar Alarms in the market.Their shortcoming is: the anti-theft column lock breakpoint is the disconnected device of mono-Circuit lock, for skilled burglar, adopt wire jumper, make contact, method such as outage more easily abolishes, and to monitored control systems such as warning set in the electronic safety lock, network G PS location, can both easy to do releasing monitor by methods such as screened shielded antanna, short circuit power supplys, thereby steal vehicle smoothly.

Summary of the invention

The utility model can be by RF digital technology Control of Automobile oil circuit blocking device, the problem of solving in the conventional art and adopt wire jumper, make contact, method such as outage being destroyed alarm system for guarding against theft.

The utility model is made up of a RF digital cipher control circuit and a blocking device; Its characteristics are: the RF digital cipher control circuit comprises an oil, circuit control circuit, programmable circuit controller and a RF digital contactless card control circuit; Blocking device is that a fuel tank oil pipe that is arranged at automobile is exported to the closed type oil resistant electromagnetic valve in the pipeline of one section of engine oil tube import; The oil of described RF digital cipher control circuit, circuit control circuit and programmable circuit controller comprise: the control circuit that central process unit, phaselocked loop audio decoder, two relays and crystal triode are formed; The output control terminal of described RF digital contactless card control circuit links to each other with the corresponding end of described central process unit IC2; 11 pin of described central process unit IC2 are data output end f ₀Be connected with data input pin 3 pin of described phaselocked loop audio decoder IC1; Resistance R 6, the capacitor C 5 of the central frequency of the external decision phaselocked loop of the 5th, the 6 pin internal voltage controlled oscillator of described IC2; 8 pin of IC2 connect the base stage of aerotron T2, and are f at signal.The time high level transfer low level to, make the T2 conducting; Have a relay J 2 to be serially connected in the emitter of T2, other has a cutout relay J1 to be serially connected in the collecting electrode of another aerotron T1; The moving contact of relay J 1 connects+holds, a fixed contact J1-1 meets control line K, another fixed contact is by a light-emitting diode D3 ground connection, wherein fixed contact J1-1 is normally closed, the fixed contact of relay J 2 connects ten ends, a fixed contact J2-1 is normally closed succeeding between electrical equipment J1 and ten ends, and another fixed contact J2-2 is connected with ground by the control coil of closed type oil resistant electromagnetic valve.

The utility model inputs to decoding circuit by radio influence with cooresponding password after automobile key unblanks to power on, password correctly is electromagnetic valve work, and the oil circuit conducting can start automotive engine, otherwise automobile can not start, and sends alerting signal.No matter the utility model robber adopts the way of outage or overlap joint oil circuit car can not be started.More safe and reliable than existing automobile burglar technology, and have economy and durability, easy and simple to handle, advantage such as highly confidential.

Description of drawings

Fig. 1 is an oil circuit scheme of installation of the present utility model.

Wherein 1 is alarming horn, the 2nd, automobile key, the 3rd, radio-frequency antenna, can be placed under bearing circle or the gauge panel in the backplate, apart from 10cm place, key hole, the 4th, LED lamp, the 5th, emergent contact pin, the 6th, emergency sooket, the 7th, induction main frame, the 8th connects NO line, the 9th, succeeds electric apparatus coil (K line), the 10th, oil circuit cable electricity, the 11st, oil circuit controller.

Three kinds of method of attachment scheme drawings that connect the oil circuit cable of the present utility model among Fig. 2,3,4.

Wherein 12 is to connect oil circuit cable (K line), the 13rd, relay, the 14th, electronics oil pump, the 15th, step-up coil.

Fig. 5 is the utility model oil, circuit control circuit.

Fig. 6 is a programmable circuit controller of the present utility model.

Fig. 7 is a RF digital contactless card control circuit of the present utility model.

Specific embodiments

After automobile key unblanks to power on, in the circuit basis set of aerotron T1 under the bias voltage of R5 and R7, the T1 conducting, relay J 1 work, the contact by the J1-1 adhesive to the J1-2 position, at this moment; The outage of K line, antitheft indicator lamp D3 lights; Pin 3 at IC does not obtain actv. signal f as yet ₀The time, the pin 8 of IC is a high potential, and T2 is an off condition, and relay J 2 is not worked, and electromagnetic valve coil L does not power on, and valve is normally closed attitude, and the automobile oil circuit is blocked.Therefore, automobile is in anti-theft state, can't start automobile.

When the car owner imported password by correct induction, this RF digital password was transmitted by Fig. 7 circuit, and CPU sends audio frequency f by the rear drive of Fig. 6 circuit decoding, works as f=f ₀The time (f ₀For the circuit of IC among Fig. 5 is determined: f ₀=1/1.1R6C5)

f ₀C1 is coupled to the pin 3 of IC in Fig. 5, and the pin of IC 8 transfers active potential to by high level, the T2 conducting, and relay J 2 work, to the J2-2 point, electromagnetic valve coil L switches on by the adhesive of J2-1 point in the contact; Solenoid valve conduction, relay J 1 is de-energized, and the J1 contact resets to the J1-1 position, the energising of K line, at this moment, automobile is in antitheft disarm state, the oil circuit conducting, automobile can start.

The IC circuit is the phaselocked loop audio decoder among Fig. 5, and the external R6 of circuit the 5th, 6 pin, C5 have determined the central frequency f of phaselocked loop internal voltage controlled oscillator ₀, f ₀=1/1.1RC.DW in the circuit, C2, R1 provide the stabilized power source of 6.5-6.8V for IC.

Radio frequency digital induction circuit of the present utility model and programming Control circuit are shown in Fig. 6,7: Fig. 7 is the radio frequency digital induction circuit that U.S.'s moral continent instrument is released, it is 10,000,000,000 groups that password is read in its induction, data transfer, deposits, discerns respectively the operation that the

14,15,16 to the CPU of Fig. 6 by R145538IC passes through to be programme and finish.The main executive routine of CPU is: identification is after automobile key powers on, and sensed data to be read such as b circuit are sent f by CPU pin 11 after correctly reading data ₀, remove antitheft for the control circuit of Fig. 5; If CPU fails to read valid data in when t, the pin 2 output high level of CPU trigger alarm equipment alarm.The pin 11 of CPU will can not send, and then Fig. 5 control circuit continues to keep anti-theft state, automobile can't be started, to play theft-proof effect.

Closed type special electromagnetic valve and control circuit (Fig. 5) sealing are made one promptly: oil circuit controller.Be installed in fuel-tank outlet end under the car chassis to one section pipeline of car engine oil circuit inlet with oil circuit controller is hidden, and add protecting cover and seal, the oil circuit cable is introduced under the gauge panel, and pinned automobile starting line, oil pump EFI line, high-pressure ignition wire etc. again by locking disconnected control line K line.Have only behind the correct number of correct use radio frequency digital induction rod input, oil circuit could be connected, and institute's control circuit also is switched on, otherwise, oil circuit, circuit all are in by the disconnected state of lock, adopt wiring, take electricity, short circuit, method such as open circuit can not abolish all that this is antitheft.If the professional person removes antitheft also the need and progressively removed about 3-4 hour after with wheel lift with special tools such as jacks, this is extremely difficult to professional robber.

Claims

1. automobile oil circuit anti-theft column lock, it is made up of a RF digital cipher control circuit and a blocking device; It is characterized in that: the RF digital cipher control circuit comprises an oil, circuit control circuit, programmable circuit controller and a RF digital contactless card control circuit; Blocking device is that a fuel tank oil pipe that is arranged at automobile is exported to the closed type oil resistant electromagnetic valve in the pipeline of one section of engine oil tube import; The oil of described RF digital cipher control circuit, circuit control circuit and programmable circuit controller comprise: the control circuit that central process unit, phaselocked loop audio decoder, two relays and crystal triode are formed; The output control terminal of described RF digital contactless card control circuit links to each other with the corresponding end of described central process unit IC2; 11 pin of described central process unit IC2 are data output end f ₀Be connected with data input pin 3 pin of described phaselocked loop audio decoder IC1; Resistance R 6, the capacitor C 5 of the central frequency of the external decision phaselocked loop of the 5th, the 6 pin internal voltage controlled oscillator of described IC2; 8 pin of IC2 connect the base stage of aerotron T2, and are f at signal.The time high level transfer low level to, make the T2 conducting; Have a relay J 2 to be serially connected in the emitter of T2, other has a cutout relay J1 to be serially connected in the collecting electrode of another aerotron T1; The moving contact of relay J 1 connects+holds, a fixed contact J1-1 meets control line K, another fixed contact is by a light-emitting diode D3 ground connection, wherein fixed contact J1-1 is normally closed, the fixed contact of relay J 2 connects ten ends, a fixed contact J2-1 is normally closed succeeding between electrical equipment J1 and ten ends, and another fixed contact J2-2 is connected with ground by the control coil of closed type oil resistant electromagnetic valve.