CN2685167Y - Rolling code antitheft device for vehicle - Google Patents
Rolling code antitheft device for vehicle Download PDFInfo
- Publication number
- CN2685167Y CN2685167Y CNU032493150U CN03249315U CN2685167Y CN 2685167 Y CN2685167 Y CN 2685167Y CN U032493150 U CNU032493150 U CN U032493150U CN 03249315 U CN03249315 U CN 03249315U CN 2685167 Y CN2685167 Y CN 2685167Y
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- Prior art keywords
- rolling code
- circuit
- control circuit
- mainframe
- code
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- Burglar Alarm Systems (AREA)
Abstract
The utility model discloses a rolling code antitheft device for a vehicle used for avoiding the stealage for the vehicle. The rolling code antitheft device for a vehicle comprises a mainframe device, an aerial extending out of the mainframe device, a main control circuit and an auxiliary control circuit. The main control circuit comprises a rolling code decoder, an oscillator providing a clock signal, a rolling code decoder electrically connected with a pull-up resistance and an address code accumulator. The auxiliary control circuit comprises a theft protection control SCM connected with the output terminal of the rolling code decoder and the power, a drive circuit, a status test circuit, a control output banked relay and a remote control ejector sending the rolling code to the mainframe device. The remote control ejector comprises the power, a keying circuit electrically connected with the power, a rolling code encoder with a rolling code software program and a high-frequency transmitter oscillator. The utility model is provided with hundred millions of cipher units and duplication ciphers can be avoided fundamentally. The mainframe isn't provided with a cipher. The mainframe is matched with the cipher of the remote controller. The mutual discrimination between the mainframe and the remote controller can be realized.
Description
Technical field
The utility model relates to a kind of electronic anti-theft remote control equipment (RCE) that is used for automobile.
Background technology
Along with riseing of automotive market, the phenomenon of stolen car all increases day by day.China has reached several hundred million units because of the economic loss that vehicle thefts causes every year.The stolen modern society's one big chronic illness that become of vehicle.Consequent various types of Car Burglar Alarm is increasing, can fear various in style, dragons and fishes jumbled together, make us dazzled, the title of naming and the Car Burglar Alarm of brand have more than 30 at least, than famous brand name cobra, lion shield, hawk bodyguard, PLC, warrior, iron general, golden man of great strength, big bodyguard, day energy or the like are arranged, price does not then wait from hundreds of unit to thousands of units.Say without exaggeration that automobile burglar has become long-term far-reaching " struggle " between auto consumer and the car thief.Alarms and security systems for automobiles on the market roughly has mechanical type Car Burglar Alarm, electronic anti-theft device and network theftproof device three major types at present.
The mechanical type anti-joyride device is simple, the most cheap on the market a kind of anti-joyride device.This device is realized with pinning steering handwheel, control pedal or retaining handle.Its advantage is a low price, simple installation, and hundreds of unit even dozens of yuan just can be settled.Shortcoming is antitheft not thorough, and each dismounting is cumbersome, and the time spent must not looked for local the placement.This class lock has:
(a) steering-wheel lock, i.e. crutch lock.In general, this is locked in 5-10 and just can be opened by the thief in second, cuts or laser gun as using hydraulic pressure, then just is opened less than 1 second.
(b) at above-mentioned defective, released a kind of protection plate formula steering-wheel lock in the market, allow nickel aluminium high strength alloy steel across certain two spoke in a covered manner at steering handwheel, on tapered end, connect a rod iron again, prevent ruffian's auto theft that uses force.This lock is concealed, and the anti-drilling steel plate protection of the anti-saw of one deck is arranged, and material is firmer than aforementioned crutch lock.
(c) protection defending lock, one of anti-joyride device that present car owner appreciates most.This anti-joyride device is again easy, and material adopts special high hardness alloy steel manufacturing and firm, pick-proof, anti-drilling, anti-saw, and unique the employing with material nickel silver lock core and key, do not have key that former factory is equipped with extremely difficulty open; If key loss, available former factory computer card copy key.
Electronic anti-theft device is to add electronic identification code to lock, and the circuit that circuit block device (IMMOBILIZER) utilizes electronic machine cut-out automobile is installed, as ignition wire, and starter motor, petrol feed pump, master control systems etc. are so that automobile can't start.If the circuit that cuts off is many more, the password of unblanking to input is also many more.Modal electric anti-thief device has unidirectional and two-way two kinds of distance type.
The network theftproof device is to utilize hyundai electronics information techenology, space technology and network technology, realizes automobile and car owner's real time information feedback.Two kinds of network theftproof devices are arranged in the market.
(a) GPS (Global Position System) GPS.It utilizes and receives satellite emission signal and surface-monitoring equipment and gps signal receiver composition global positioning system, successively send dynamic object by satellite constellation---three-dimensional position, speed and the temporal information of automobile, know the residing at that time position of automobile with receiving feedback information.The theft-proof defective of GPS mainly contains: the one, and the regional GPS that does not set up satellite positioning ground monitoring center can't work; The 2nd, because number of satellite is limited, information scanning covers and has certain " blind area ", " loses " state thereby make monitoring in fact often be in interruption; The 3rd, price generally all more than thousands of units, also will be paid the service charge of hundreds of units.As if though its first appearance is to be used on the taxicar, makes every effort to walk " popular route ", people all very do not buy its account.So even to this day, it remains superior, and few people makes inquiries.
(b) the GQF alarms and security systems for automobiles is a kind of new network anti-joyride device that nearest people develop.The extremely wide communication network of the present protection face of this anti-joyride device utilization is realized automobile and the instant two-way interaction of car owner.This device adopts the irreclaimable circuit design structure of robber, use advanced inlet sensor, and be provided with the multiple spot alerting signal, as long as the robber touches wherein more arbitrarily, this installs all latch circuit immediately, make body inner height volt circuit, generator circuit refuse emergency simultaneously, send long-time audio communication and captions alerting signal by communication network to car owner's mobile phone or beeper simultaneously.The theft-proof defective of GQF mainly contains: the one, and communication network also has necessarily " blind area ", for example underground parking.The 2nd, communication network adopts the fixed frequency communication, and the robber can be with allowing the car owner can not receive the signal that automobile transmits than the high-power signal interference unit.The 3rd, price generally also more than thousands of units, makes ordinary people hang back.
Also has " permulation lock " that a lot of people are familiar to the ear in addition.It has to be difficult for " being cracked " characteristics by car thief than other alarms and security systems for automobiless.Its defective is that trouble is installed.After the full car outage, to carry out when starting again sign indicating number.
In sum, in mechanical type, electronic type and three kinds of antitheft modes of network type in the market, the electronic type Car Burglar Alarm occupies absolute advantage because of its good cost performance.GPS is because of its fancy price and is that all right at present ripe market, although the developing direction of automobile burglar after may representing does not also possess the strength of challenging with the electronic type Car Burglar Alarm at present.
In the automotive electronic anti-theft device cryptographic system, password is the key of Car Burglar Alarm, except identical transmitting and receiving the frequency will be arranged, the mutual identification of password will be arranged also between remote controller and the host computer system.Password is being put down in writing the identifying data of Car Burglar Alarm---identity code on the one hand, in order to distinguish different Car Burglar Alarms.On the other hand, it is including theft-proof function command data---data code or command code again, is responsible for opening or closing Car Burglar Alarm, and all functions of Car Burglar Alarm are finished in control.In other words, who has grasped password, and who has just controlled Car Burglar Alarm.
Early stage Car Burglar Alarm mostly is fixed sign indicating number Car Burglar Alarm, and promptly main frame respectively has one group of identical password with remote controller, thereby finishes the various functions of Car Burglar Alarm.The defective of fixed sign indicating number Car Burglar Alarm is that number of password is few, is prone to duplication code, can cause the phenomenon of a remote controller control multi-section vehicle to take place.And after fixed sign indicating number remote controller was lost, remote controller must be changed together together with main frame, and expense is very high.More nerve-wracking is that the safety of fixed sign indicating number Car Burglar Alarm is relatively poor, and password easily is copied or tackles, and has increased the probability of being had things stolen by vehicle.
Summary of the invention:
The purpose of this utility model is to overcome the deficiencies in the prior art part, a kind of safety factor height is provided, do not duplicate sign indicating number, main frame and remote controller only have one group of password, password is difficult for being blocked, copies, and can automatic rolling conversion password combination, need not the artificial memory and to the rolling code car alarm of sign indicating number.
The purpose of this utility model is achieved by following technical proposals.A kind of rolling code car alarm, comprise: host apparatus and the antenna that stretches out in this host apparatus, and the tuner that is electrically connected with antenna, power supply and main control circuit, wherein main control circuit is electrically connected from control circuit, it is characterized in that: described main control circuit contains the rolling code demoder and the oscillator of clock signal is provided, and the rolling code demoder and the address code memory device that are electrically connected by pull-up resistor; Describedly contain with rolling code demoder mouth and the antitheft control single chip computer, the driving circuit that are connected with power supply and be connected to the state detection circuit of automobile associated components and be connected to the control output relay group of automobile Be Controlled parts from control circuit; Feature of the present utility model also is; It also comprises a rolling code remote control transmitter to host apparatus transmission rolling code, and described rolling code remote control transmitter comprises power supply and the switch circuit that is electrically connected with power supply, contains the rolling code coder and the high frequency emitting shaker of rolling code software program.
The utility model compared with the prior art, its beneficial effect is.
Remote controller password described in the utility model also has a rolling code part except that identity code and command code.Its password is according to certain coding function, every emission once, password changes once immediately, password can not duplicated easily or be tackled, safety is high.And more than one hundred million groups of rolling code Car Burglar Alarm password combination, fundamentally stopped duplication code.More convenient is that rolling code Car Burglar Alarm main frame does not have password, and main frame is realized the mutual identification between main frame and the remote controller by the password of learning remote control device.If remote controller loses, can be safely and change remote controller at low cost, use is without fear of an attack from the rear.
Fixed code and rolling code difference are:
| Fixed code | Rolling code | |
| Secret key quantity | 6561 | 2 66 powers |
| Each emission password | Repeat | Do not repeat |
| Duplicate | Can | Can not |
| Aerial interception | Can | Can not |
| Safety | Low | High |
| Newly-increased handset | Can not | Can |
Description of drawings:
Fig. 1 is the inner structure schematic circuit diagram of the new host apparatus of this practicality.
Fig. 2 is the new rolling code remote control transmitter inner structure schematic circuit diagram of this practicality.
Fig. 3 is new host apparatus of this practicality and automobile associated components bonded assembly embodiment circuit scheme of installation.
The specific embodiment.
In order to further specify rather than limit above-mentioned way of realization of the present utility model, provide most preferred embodiment below in conjunction with accompanying drawing, thereby make details of the present utility model and advantage become more obvious.
Fig. 1 has described the inner structure circuit structure of the utility model host apparatus.Host apparatus has a machine box (not shown), stretches out in the antenna slave box, and the machine box also leads to address code burning indicator lamp transistor LED.Tuner is connected between power supply and the antenna.Tuner links to each other with rolling code demoder IC1 circuit.The model that rolling code decoder micro-controller IC1 can select for use is the IC chip of EM78P156 or similar function.The preferred model of singlechip chip is HCS200.The oscillator circuit that provides clock signal for rolling code decoder micro-controller IC1 among the figure is by capacitor C 1, and C2 and relay J T1 constitute.The resistance R 2 that links to each other with micro controller system is current-limiting resistance.Micro controller system IC1 is by current potential pull-up resistor R1, R3, R4 (being load resistor again) link address code memory IC2.Address code memory IC 2 available models are the micro controller system of 24CO2 or similar function.Wherein J1 is a socket pins.The mouth of micro controller system IC1 and the antitheft control single chip computer of power supply phase sequence bonded assembly, driving circuit (driving relay) among the figure, the R/G that is connected automobile Be Controlled parts are the known circuits technology with the state detection circuit that is connected each parts of automobile (whether the car check state is normal), are not described herein at this.
Fig. 2 is the remote control transmitter that sends rolling code to host apparatus.This remote controller comprises a light little shell (not shown).It is mainly by DLL (dynamic link library), filter circuit, two switch circuits, and 3 oscillating circuits of inductance type and rolling code Programmer are formed.Described rolling code software program is solidificated in the rolling code coder IC3 by DLL (dynamic link library) 4PIN burning.The rolling code program software relates to literary property, is not described herein at this.Resistance R 7 among the figure, R8, R9 are the current potential pull-up resistors of roll encoder IC3, and the capacitor C of cross-over connection between DLL (dynamic link library) 4PIN and current-limiting resistance R6 is filter circuit.Described switch circuit is by resistance R 5, inductance L 1, and transistor T 1 constitutes.The switch circuit of being made up of diode D1, D2 and K switch 1, K2, K3, K4 is a transistor switching circuit.Described inductance type oscillator circuit is made of resistance R 11, capacitor C 3, C5, C6, inductance L 2, L3, crystal triode T2 and C4, R10.
Principle of work of the present utility model is: export rolling code to IC1 behind the tuner receiving demodulation by the signal that remote controller sends.Whether IC1 receives behind the rolling code address code in the rolling code and the address code among the IC2 made comparisons and finds this telecommand and carry out.If this telecommand is then rolling code being decoded of this machine of remote control and outputs to theft-proofing control circuit.Theft-proofing control circuit receives that carrying out various instructions behind the signal finishes antitheft control to automobile through the driving circuit R/G.
Fig. 3 is the erection plan of novel host apparatus of this usefulness and automobile region of interest.Host apparatus is installed in Automobile instrument below or other more suitable latent mil is put usually among the figure.Wire joint Acc, steering indicating light, Brake lights, room light, power supply etc.Green line connects wireless calling system (B1B1, CACC) receptor (RECEIVE), notifies from a phone call main frame PAGER, ANT black line ground connection directly to inserting.Battery is packed into, then calling set switch ON/OFF is switched to the ON position.
After host apparatus installs, be fixed in vibrator on the car body or near the dashboard.The installation of centring control door lock is at first the car door Door Trim to be unloaded, in door near the hand switch pull bar, look for an easy fixedly place of central controlled lock motor, then the standing finish that is equipped with is fixed together hand switch control bar and central controlled lock motor pull bar, like this, when the central controlled lock motor moves, will drive the Door Lock pull bar, just can reach the effect of centring control door lock.The yellow line that host apparatus is drawn is connected to engine outage loop, pink wire joint electronics loud-speaker, and red and black line connects the 12V battery respectively.Brown line connects steering indicating light.White wire connects the KEYDN position, blue line trigger gate limit switch, room light (ROOML1GHT).Orange line pin is switch (BRAKE.SW) and foot brake lamp (BRAKELAMP) very.
Install, the utility model still has the functional effect of existing electric anti-thief device: warning function: after car owner's remote control is locked a door, annunciator promptly enters the state of alert, prize car door if any the people this moment or with the key door of driving, the Car Burglar Alarm warning that can pipe immediately frightens the resistance burglar, utilizes electronic machine to cut off the circuit of automobile simultaneously, as ignition wire, starter motor, petrol feed pump, master control system etc., so that automobile can't start.Car door does not close safety instruction: the driving driver door does not close appropriate, and Warning light is flicker continuously.Seek the car function: when the car owner sought car with remote controller, loudspeaker can pipe, simultaneously with the car light flash for prompting.The remote control central door lock: when remote controller emission correct signal, central door lock is understood self-opening or is closed.
Can think that the foregoing description only is described in the mode of enumerating, can also have many according to this device of the present utility model.Simple personal identification number key for example is set on remote controller.Therefore to one skilled in the art, various changes and change that the utility model is made are conspicuous, can not break away from the protection domain of design of the present utility model and additional claim.
Claims (7)
1. rolling code car alarm, comprise: host apparatus and the antenna that stretches out in this host apparatus, and the tuner that is electrically connected with antenna, power supply and main control circuit, wherein main control circuit is electrically connected from control circuit, it is characterized in that: described main control circuit contains the rolling code demoder and the oscillator of clock signal is provided, and the rolling code demoder and the address code memory device that are electrically connected by pull-up resistor; Describedly contain with rolling code demoder mouth and the antitheft control single chip computer, the driving circuit that are connected with power supply and be connected to the state detection circuit of automobile associated components and be connected to the control output relay group of automobile Be Controlled parts from control circuit; Feature of the present utility model also is; It also comprises a rolling code remote control transmitter to host apparatus transmission rolling code, and described rolling code remote control transmitter comprises power supply and the switch circuit that is electrically connected with power supply, contains the rolling code coder and the high frequency emitting shaker of rolling code software program.
2. rolling code car alarm according to claim 1 is characterized in that described rolling code decoder micro-controller is that model is the IC chip of EM78P156 or similar function.
3. rolling code car alarm according to claim 2 is characterized in that described rolling code decoder micro-controller model is HCS200.
4. rolling code car alarm according to claim 2, the model that it is characterized in that described address code memory device is the micro controller system of 24CO2 or similar function.
5. rolling code car alarm according to claim 2 is characterized in that the described oscillator circuit that clock signal is provided by capacitor C 1, and C2 and relay J T1 constitute.
6. rolling code car alarm according to claim 2, it is characterized in that described switch circuit comprises by resistance R 5, inductance L 1, switch circuit that transistor T 1 constitutes and the transistor switching circuit of forming by diode D1, D2 and K switch 1, K2, K3, K4.
7. rolling code car alarm according to claim 2 is characterized in that described inductance type oscillator circuit is made of resistance R 11, capacitor C 3, C5, C6, inductance L 2, L3, crystal triode T2 and C4, R10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032493150U CN2685167Y (en) | 2003-07-02 | 2003-07-02 | Rolling code antitheft device for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032493150U CN2685167Y (en) | 2003-07-02 | 2003-07-02 | Rolling code antitheft device for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2685167Y true CN2685167Y (en) | 2005-03-16 |
Family
ID=34661048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032493150U Expired - Fee Related CN2685167Y (en) | 2003-07-02 | 2003-07-02 | Rolling code antitheft device for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2685167Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642517A (en) * | 2012-04-13 | 2012-08-22 | 史会同 | Anti-decoding network alarm type anti-theft electronic lock for cars |
| CN102653268A (en) * | 2011-03-04 | 2012-09-05 | 李创中 | USB (Universal Serial Bus) car alarm |
| CN103576591A (en) * | 2013-11-12 | 2014-02-12 | 淮安市金恒泰科技有限公司 | Intelligent anti-theft remote-control rolling code controller |
-
2003
- 2003-07-02 CN CNU032493150U patent/CN2685167Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653268A (en) * | 2011-03-04 | 2012-09-05 | 李创中 | USB (Universal Serial Bus) car alarm |
| CN102642517A (en) * | 2012-04-13 | 2012-08-22 | 史会同 | Anti-decoding network alarm type anti-theft electronic lock for cars |
| CN103576591A (en) * | 2013-11-12 | 2014-02-12 | 淮安市金恒泰科技有限公司 | Intelligent anti-theft remote-control rolling code controller |
| CN103576591B (en) * | 2013-11-12 | 2016-05-25 | 淮安市金恒泰科技有限公司 | Remote control rolling code intelligent anti-theft controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |