CN2351333Y

CN2351333Y - Antitheft alarmer for vehicle

Info

Publication number: CN2351333Y
Application number: CN98249833U
Authority: CN
Inventors: 崔洪军
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-12-07
Filing date: 1998-12-07
Publication date: 1999-12-01
Anticipated expiration: 2008-12-07

Abstract

The utility model relates to an anti-theft alarm for an automobile, which is composed of a mobile telephone and a host machine which is installed in the automobile, wherein a pyroelectric infrared sensor and a vibration displacement sensor are arranged on the host machine, and the host machine is communicated with the mobile telephone by modes of wireless reception and transmission, wherein the reception mode adopts the secondary frequency-changing technique of superheterodyne frequency modulation reception, and adopts a crystal frequency stabilizing integrated circuit, a digital encoding integrated circuit and a digital decoding integrated circuit simultaneously. The utility model has the advantages of stable performance, high sensitivity and high anti-interference capability. The utility model makes use of unique alarm mode that the host machine and the mobile telephone are matched with each other at different places; thus, an automobile thief can be caught while the thief pays less attention to action. The utility model also has the advantages of small size, low cost, powerful function and wide application ranges, and can be easily accepted by consumers.

Description

Car alarm

The utility model relates to a kind of vehicle electronics burglar alarm.

The world today, automobile is more and more popularized, is deep in people's the production, life, becomes the maximum consumables in the whole world.Yet automobile case stolen, that robbed but constantly takes place, and the car owner is had a headache for it, and the police is thorny for it.For this reason, various car alarms arise at the historic moment.At present car alarm on the market generally adopts retroactive reception, and there is the frequency instability in the LC oscillation emission, is subject to disturb, and report morely, and the interference resident living can not satisfy the requirement of automobile anti-theft alarm.

The strange land type of alarm that the purpose of this utility model is that a kind of volume of design is little, cost is low, stable performance, interference resistance strong, utilizes main frame and mobile phone to match is grabbed the vehicle electronics burglar alarm of car stealer among silent.

The utility model has been realized above-mentioned design goal with its particular structure characteristics, it is made up of main frame and mobile phone, it is characterized in that mobile phone is by switch circuit, countdown circuit, modulation circuit, the frequency multiplication amplifying circuit, the encoding and decoding control circuit, coding-decoding circuit, the economize on electricity control circuit, power save circuit, crystal oscillation circuit, High Amplifier Circuit, mixer circuit, in put demodulator circuit, booster circuit, warning circuit and power supply constitute, switch circuit has three road mouths, respectively with countdown circuit, the encoding and decoding control circuit links to each other with the input end of economize on electricity control circuit, the countdown circuit signal output part links to each other with the frequency multiplication amplifying circuit with modulation circuit respectively, encoding and decoding control circuit mouth links to each other with coding-decoding circuit, encoding and decoding control circuit mouth links to each other with coding-decoding circuit, economize on electricity control circuit mouth links to each other with power save circuit, the mouth of crystal oscillation circuit and High Amplifier Circuit all connects the mixer circuit input end, during all connecing, mixer circuit and power save circuit mouth put the demodulator circuit input end, in put demodulator circuit and encoding and decoding control circuit mouth all connects the coding-decoding circuit input end, the coding-decoding circuit mouth has two-way, link to each other with the warning circuit input end with modulation circuit respectively, the modulation circuit mouth links to each other with the frequency multiplier circuit input end, antenna is penetrated in the sending and receiving of frequency multiplier circuit mouth, the booster circuit mouth has two-way, link to each other with the warning circuit input end with coding-decoding circuit respectively, warning circuit links to each other with loud speaker input end on the main frame, and the High Amplifier Circuit input end connects a receiving wire; Main frame is by receiving wire, storage battery, backup power, mu balanced circuit, the FM reception circuit, amplification and rectification circuit, decoding circuit, sensor control circuit, the vibration displacement sensor, pyroelectric infrared sensor, mix amplifying circuit, time setting circuit, countdown circuit, encode circuit, modulation circuit, frequency multiplier circuit, power amplification circuit, emitting antenna and lock and engine control circuit constitute, the FM reception circuit input end is connected with receiving wire, its mouth links to each other with the amplification and rectification circuit input end, the amplification and rectification circuit mouth links to each other with the decoding circuit input end, the decoding circuit mouth respectively with sensor control circuit and lock, the input end of engine control circuit links to each other, the sensor control circuit mouth links to each other with vibration displacement sensor input end with pyroelectric infrared sensor respectively, this two sensors output signal end all links to each other with the mixing input amplifier, mixing amplification circuit output end links to each other with the time setting circuit input end, the time setting circuit mouth links to each other with the countdown circuit input end, countdown circuit has the three-way output signal end, respectively with encode circuit, modulation circuit, the frequency multiplier circuit input end links to each other, encode circuit, modulation circuit, frequency multiplier circuit, the power amplification circuit I/O is continuous in proper order, and antenna is penetrated in the sending and receiving of power amplification circuit signal output part.

The utility model adopts the crystal oscillation emission, adopt double conversion technology and superhet FM reception, adopt the crystal frequency stabilization simultaneously, has stable performance, the advantage highly sensitive, that antijamming capability is strong, utilize pioneering technologys such as heat is released sheet infradred sensor, vibration displacement sensor, digital encoding and decoding are integrated, the small size high frequency radio transmits and receives, utilize the strange land type of alarm of the uniqueness that mobile phone matches with main frame, can catch the thief among silent.Its superior performance mainly is owing to adopted advanced sensor technology except that ensureing by circuit structure:

Pyroelectric infrared sensor is later-model end instr, has unique excellent properties.The infrared ray that human body radiation goes out, centre wavelength is about 9-10 μ m, this pyroelectric infrared sensor surface attachment has the filter of cut off wavelength 7-10 μ m, infrared ray beyond this scope is all by filtering, therefore, this infradred sensor is only to the human body sensitivity, and no matter the car stealer is from any angle, adopt any way into the car, this pyroelectric infrared sensor all can send warning.

The vibration displacement sensor is a kind of comprehensive solid-state controller spare that integrates vibration and displacement detecting, is the best device of conduct warning at present and state-detection.It both had very high detection sensitivity to vibration, and the aud. snl. in the environment suppresses to external world again, has very strong anti-interference resistance.Because it works in the solid-state detection mode, so do not have mechanical fatigue, sensitivity reduction, false triggering and be subjected to ambient humidity temperature effect, has very high conformability.Meanwhile, the sensitivity of sensor scalable also.When it is subjected to severe jolt, send signal immediately, but thunder and lightning sound contacts then slightly with human body and can not send alerting signal.

The utility model main frame is equipped on automotive interior, and mobile phone is then carried by the motorist.After car alarm entered the anti-theft alarm state, in case there is the car stealer to commit a crime, main frame was then passed to mobile phone with stolen signal rapidly, and mobile phone sends tweeting sound immediately, did not then have any sound in the car.Thus, can catch the thief among unconsciously.

In sum, the utlity model has unique excellent properties, disturbance rejection is strong, can flase alarm, and volume is little, and cost is low, is accepted by the customer easily, has the market competitiveness and market development potential.

Further specify the utility model constructional feature below in conjunction with accompanying drawing:

Fig. 1 host circuit block scheme

Fig. 2 main frame electrical schematic diagram

Fig. 3 mobile phone circuit block scheme

Fig. 4 mobile phone receiving unit electrical schematic diagram

Fig. 5 mobile phone electrical schematic diagram

By Fig. 1, Fig. 2 as can be known, main frame is by receiving wire, storage battery, backup power, mu balanced circuit, the FM reception circuit, amplification and rectification circuit, decoding circuit, sensor control circuit, the vibration displacement sensor, pyroelectric infrared sensor, mix amplifying circuit, time setting circuit, countdown circuit, encode circuit, modulation circuit, frequency multiplier circuit, power amplification circuit, emitting antenna and lock and engine control circuit constitute, the FM reception circuit is by monolithic FM reception ic chip 1, inducer L1-10, quartz crystal X1, X3 and quartz filter X2, X4, stabilivolt D1 and peripheral Resistor-Capacitor Unit are formed, the IC1 model is MC3363, amplification and rectification circuit is made up of phase inverter A1～3 and peripheral circuit, CD4069 can be adopted in A1～3, decoding circuit is made of decoding integrated package IC2 and peripheral circuit, IC2 adopts UM3758-108, control circuit is by aerotron T1, relay J K, diode D5 forms, T1 adopts C1623, D5 adopts MA151A, sensor control circuit is by aerotron T6, diode D6 and peripheral circuit constitute, T6 adopts C1623, D6 adopts the 5.8V stabilivolt, pyroelectric infrared sensor is IC3, adopt HN911, the vibration displacement sensor is IC4, adopt DN-1, mix amplifying circuit by aerotron T5, phase inverter A4 and peripheral circuit constitute, T5 adopts C1623, A4 adopts CD4069, time setting circuit is by diode D7, phase inverter A5,6 and peripheral circuit constitute, countdown circuit is by aerotron T7,8 and peripheral circuit constitute, T7 adopts C1623, T8 adopts A1162, encode circuit is made of IC 5 and peripheral circuit, IC5 adopts MU3758-108, modulation circuit, frequency multiplier circuit and power amplification circuit are by module I C6, inductance L 11 and peripheral circuit and emitting antenna are formed, mu balanced circuit is by diode D4, zener diode D2 and aerotron T2～4 and peripheral circuit constitute, T2,3 adopt C1623, zener diode D2 is 5.8V, T4 adopts A1162, backup power is by chargeable battery E1, diode D3 and peripheral circuit constitute, storage battery is a storage battery on the automobile, lock, engine is all corresponding to link to each other with its control circuit.

Fig. 3, Fig. 4, Fig. 5 have shown the mobile phone circuit structure, by switch circuit, countdown circuit, modulation circuit, frequency multiplication amplifying circuit, encoding control circuit, coding-decoding circuit, economize on electricity control circuit, power save circuit, crystal oscillation circuit, High Amplifier Circuit, mixer circuit, in put demodulator circuit, booster circuit, warning circuit and power supply and constitute, High Amplifier Circuit, crystal oscillation circuit, mixer circuit, in put demodulator circuit and constitute acceptor circuit jointly.By shown in Figure 4, High Amplifier Circuit is by receiving wire, inductance L 31,32, aerotron T20 and peripheral circuit constitute, T20 adopts C4214, crystal oscillation circuit is by quartz crystal, X7, inductance L 33～35, aerotron T21 and peripheral circuit constitute, T21 adopts C4214, mixer circuit is by inductance L 36, aerotron T22 and peripheral circuit constitute, T2 adopts C24214, in put demodulator circuit by filter X8, quartz crystal X10,11, inductance L 37, aerotron T23 and IC 10 and peripheral circuit are formed, T23 adopts C4214, IC10 adopts A1184, and the output signal end of these four element circuits is 1,2,3,4, with 1 among Fig. 5,2,3,4 ends are corresponding to be connected.Booster circuit is by inductance L 25,26, diode D25, IC 8 and peripheral circuit constitute, IC8 adopts AH803, switch circuit is by button K1, K2, diode D19, D22～24 are formed, the economize on electricity control circuit is by diode D5, aerotron T15, phase inverter O5, O6 and peripheral circuit are formed, T15 adopts A1162, O5, O6 adopts CD4O69, power save circuit is by phase inverter B5,6, diode D11, D14 and peripheral circuit constitute, B5,6 adopt CD4069, the encoding and decoding control circuit is by diode D20,21 and peripheral circuit constitute, coding-decoding circuit is made of ic chip 7 and peripheral circuit, IC7 adopts UM3758-108, countdown circuit is by phase inverter B4, aerotron T19 and subsection resistance constitute, B4 adopts CD4069, T19 adopts A1162, warning circuit is by diode D10,13,16,17,18, phase inverter B1～3, O1～4, aerotron T16 and peripheral circuit constitute, diode adopts MA151A, phase inverter B, O all adopts CD4069,, modulation circuit is by quartz crystal X6, capister D26, inductance L 27～29, aerotron T17 and peripheral circuit constitute, D26 adopts ISV161, T17 adopts C4214, and the frequency multiplication amplifying circuit is by aerotron T18, inductance L 30, peripheral circuit and emitting antenna are formed, and T18 adopts C4214.

In the circuit, phase inverter is common three phase inverter integrated package CD4069, one of A1-6, one of B1-6, one of O1-6.

This car alarm also has anti-the robbery and self-checking function except that having human-body infrared sensing device and vibration displacement sensing strange land warning function.When automobile was plundered, the car owner can be with antitheft alarm system in the handset starting car, automobile auto shut down within 20 meters; When the car owner started burglar alarm, mobile phone can send the of short duration several seconds Guan Sheng that reports, and showed that burglar alarm has entered normal anti-theft alarm state.

Claims

1, a kind of car alarm, form by mobile phone and main frame, it is characterized in that mobile phone is by switch circuit, countdown circuit, modulation circuit, the frequency multiplication amplifying circuit, the encoding and decoding control circuit, coding-decoding circuit, the economize on electricity control circuit, power save circuit, crystal oscillation circuit, High Amplifier Circuit, mixer circuit, in put demodulator circuit, booster circuit, warning circuit and power supply constitute, switch circuit has three road mouths, respectively with countdown circuit, the encoding and decoding control circuit links to each other with the input end of economize on electricity control circuit, the countdown circuit signal output part links to each other with the frequency multiplication amplifying circuit with modulation circuit respectively, encoding and decoding control circuit mouth links to each other with coding-decoding circuit, economize on electricity control circuit mouth links to each other with power save circuit, the mouth of crystal oscillation circuit and High Amplifier Circuit all connects the mixer circuit input end, during all connecing, mixer circuit and power save circuit mouth put the demodulator circuit input end, in put demodulator circuit and encoding and decoding control circuit mouth all connects the coding-decoding circuit input end, the coding-decoding circuit mouth has two-way, link to each other with the warning circuit input end with modulation circuit respectively, the modulation circuit mouth links to each other with the frequency multiplier circuit input end, antenna is penetrated in the sending and receiving of frequency multiplier circuit mouth, the booster circuit mouth has two-way, link to each other with the warning circuit input end with coding-decoding circuit respectively, warning circuit links to each other with loud speaker input end on the main frame, and the High Amplifier Circuit input end connects a receiving wire; Main frame is by receiving wire, storage battery, backup power, mu balanced circuit, the FM reception circuit, amplification and rectification circuit, decoding circuit, sensor control circuit, vibration sensor, infrared pickoff, mix amplifying circuit, time setting circuit, countdown circuit, encode circuit, modulation circuit, frequency multiplier circuit, power amplification circuit, emitting antenna and lock and engine control circuit constitute, the FM reception circuit input end is connected with receiving wire, its mouth links to each other with the amplification and rectification circuit input end, the amplification and rectification circuit mouth links to each other with the decoding circuit input end, the decoding circuit mouth respectively with sensor control circuit and lock, the input end of engine control circuit links to each other, the sensor control circuit mouth links to each other with the vibration sensor input end with infrared pickoff respectively, this two sensors output signal end all links to each other with the mixing input amplifier, mixing amplification circuit output end links to each other with the time setting circuit input end, the time setting circuit mouth links to each other with the countdown circuit input end, the countdown circuit output signal end has three the tunnel, respectively with encode circuit, modulation circuit, the frequency multiplier circuit input end links to each other, encode circuit, modulation circuit, frequency multiplier circuit, the power amplification circuit I/O is continuous in proper order, and antenna is penetrated in the sending and receiving of power amplification circuit signal output part.