CN205788388U - The unlocked alarm device of car door - Google Patents

Abstract

This utility model relates to automobile safety system technical field, particularly relate to a kind of unlocked alarm device of car door, including AT89S52 single-chip microcomputer, STC11F60XE single-chip microcomputer, latch detection module and GSM sending module, described AT89S52 single-chip microcomputer is with data transmission blocks, and described STC11F60XE single-chip microcomputer is with data reception module；Described data transmission blocks is for sending vehicle-locking signal to described data reception module；Described data reception module is used for receiving vehicle-locking signal；The described detection module that latches is for detecting the mechanical movement situation of automotive lock, and by comparator, the mechanical movement situation information of automotive lock is sent to described AT89S52 single-chip microcomputer.This apparatus structure is simple, and energy consumption is low, and safety is high, ensure that the safety of article in car the most greatly.

Description

The unlocked alarm device of car door

Technical field

This utility model relates to automobile safety system technical field, particularly relates to a kind of unlocked alarm device of car door.

Background technology

At present, media report often occurring, car owner forgets to lock door or in the effect of automobile interference unit because of inadvertent Under fail really to lock car door thus cause car in the event lost of a large amount of items, for car owner because of carelessness forget car locking or The situation such as false car locking under the effect of automobile interference unit, each producer does not release relevant innovative electronic technical products.Mesh Before light flash when the most also using traditional electronic technology i.e. car locking, horn blast, respond car locking by such mode Action, plays certain suggesting effect.Sent faint by the wireless transmitter in remote-control key when its operation principle is car locking Electric wave signal, this signal can be received by automobile wireless receptor, then identifies signal code through electronic controller ECU, then by phase The executor that answers performs to open/action of locking, and simultaneous control of automobile light and the energising work of loudspeaker circuit moment.

Because neglecting, this technology forgets that car locking causes property by being still unavoidable from car owner from the point of view of practice test for many years Loss situation occurs, and especially when in the face of automobile interference unit, million person of outstanding talent's cars are the most at a loss what to do.Vehicle signal interference unit effect is main It is in effective interference distance, is intercepted by the frequency that vehicle remote control device is sent, make signal not be delivered on car, cause Car door cannot be locked.And the most under-the-counter interference unit is disguised strong, remote control letter can be accepted in the range of 30 to 100 meters Number, and then automatically generate complete remote signal.Automobile remote controllers can be allowed in the range of 50 meters to lose efficacy, and intercepted close Code can store, and reaches free switch and chooses the effect of Vehicular door.Theft utilizes the technological deficiency of vehicle centrally controrlled locking system just, When car owner locks door with Digiplex, the signal that interference Digiplex sends rapidly, make car owner be mistakenly considered car door and lock, By car door opening after car owner is away from automobile, and then implement property or directly steal automobile in theft car.

Utility model content

The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and provides a kind of unlocked alarm device of car door, In the case of driver forgets that pressing remote controller locks door or make automobile be in false lock under the effect of automobile interference unit, improve vapour Car security system, guarantees property safety in car owner's car to greatest extent.

This utility model for achieving the above object, by the following technical solutions:

A kind of unlocked alarm device of car door, it is characterised in that: include AT89S52 single-chip microcomputer, STC11F60XE single-chip microcomputer, fall Lock detection module and GSM sending module, described AT89S52 single-chip microcomputer is with data transmission blocks, and described STC11F60XE is mono- Sheet machine is with data reception module；Described data transmission blocks is for sending vehicle-locking signal to described data reception module；Described Data reception module is used for receiving vehicle-locking signal；The described detection module that latches for detecting the mechanical movement situation of automotive lock, and The mechanical movement situation information of automotive lock is sent to described AT89S52 single-chip microcomputer by comparator.

Preferably, the detection module that latches described in uses H206 photoswitch.

Preferably, described comparator uses LM2903 voltage dual comparator.

Preferably, described GSM sending module uses TC35i gsm module.

The beneficial effects of the utility model are: relative to prior art, and this apparatus structure is simple, and energy consumption is low, safety Height, ensure that the safety of article in car the most greatly.Working as engine misses, occupant, after car, passes through The latch centrally controrlled locking system position of mechanism is detected, and once finds that its position is in and does not responds remote-control key vehicle-locking signal During state (carelessness is forgotten or disturbs lower vacation lock), i.e. send urgent prompting message to car owner's mobile phone.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model；

Fig. 2 is remote-control key side data sending module circuit diagram in this utility model；

Fig. 3 is host side data reception module circuit diagram in car in this utility model；

Fig. 4 is automobile door lock position detecting module circuit diagram in this utility model；

Fig. 5 is this patent product alarm module control circuit figure in this utility model.

Detailed description of the invention

Below in conjunction with the accompanying drawings and preferred embodiment describe in detail detailed description of the invention of the present utility model.Such as Fig. 1-Fig. 5 institute Show, a kind of unlocked alarm device of car door, including AT89S52 single-chip microcomputer, STC11F60XE single-chip microcomputer, latch detection module and GSM sending module, described AT89S52 single-chip microcomputer is with data transmission blocks, and described STC11F60XE single-chip microcomputer connects with data Receive module；Described data transmission blocks is for sending vehicle-locking signal to described data reception module；Described data reception module is used In receiving vehicle-locking signal；The described detection module that latches is for detecting the mechanical movement situation of automotive lock, and by the machinery of automotive lock Motion conditions information is sent to described AT89S52 single-chip microcomputer by comparator.

Main devices is introduced

1.STC11F60XE single-chip microcomputer: this single-chip microcomputer is the one in the STC11 series that macrocrystalline science and technology produces is at a high speed/ Low-power consumption/superpower jamproof 8051 single-chip microcomputers of new generation, instruction code completely compatible traditional 8051, but fast 8-12 times of speed, It is internally integrated highly reliable reset circuit.Running voltage: 5.5-4.1/3.7V;Flash program memorizer: 60K；SRAM:1280 word Joint；Intervalometer T0, T1: have；UART serial ports: 1-2；Independent Baud rate generator: have；DPTR:2；EEPROM:1K；Interrupt Priority: 2；I/O mouth: 36/40；Support that power down wakes up external interrupt up: 5；House dog: have；Built-in reset is optional the most multiple Position threshold voltage: have；Internal low-voltage interrupts: have；Packing forms: PDIP40/LQFP44.

2.AT89S52 single-chip microcomputer: AT89S52 is a kind of low-power consumption, high-performance CMOS 8 8-digit microcontroller, and having 8K is being System can compile AT89S52-24PU journey flash storage.AT89S52 has a following standard feature: 8k bytes Flash, 256 bytes RAM, 32 I/O mouth lines, WatchDog Timer, 2 data pointers, three 16 bit timing devices/enumerators, 6 vectors 2 Level interrupt structure, full duplex serial port, crystal oscillator and clock circuit in sheet.It addition, AT89S52 can be down to 0Hz static logic behaviour Make, support that 2 kinds of softwares may select energy-saving mode.Under idle pulley, CPU quits work, it is allowed to RAM, timer/counter, string Mouth, interruption work on.Under power down protection mode, RAM content is saved, and agitator is frozen, and all work of single-chip microcomputer stop, Interrupt or hardware reset until next.

3.H206 photoswitch: photoswitch is the abbreviation of proximity switch, it is to utilize detected material to block light, from And judgment object with or without.Brand: WYC；Structure type: amplifier divergence type；Detection mode: slot type；Supply voltage 3-5V；Output Mode: optical signal exports；Use ambient temperature :-20-90 DEG C.

4. LR1 (three feet) R315 sound table resonator: sound surface resonator i.e. SAW filter, be called for short SAWF or SAW, is piezoelectric effect and the acoustic surface wave propagation utilizing the pierce oscillator materials such as piezoelectric ceramics, Lithium metaniobate, quartz A kind of transduction type passive bandpass filters that physical characteristic is made.Brand: TXC/ Taiwan crystalline substance skill；Nominal frequency: 315MHZ；Adjust Frequency difference: 20PPM (MHz)；Temperature frequency difference: 20PPM (MHz)；Total frequency difference: 20PPM (MHz)；Load capacitance: 10pF；Load resonant Resistance: 100 Ω；Fiducial temperature :-40 DEG C-80 DEG C.

5.LM2903: use the encapsulation of dual-in-line 8 foot, low-power consumption, low maladjustment voltage dual comparator.Operating temperature range: -40℃~ +85℃；Supply voltage :+1 ∽+18V or 2V ∽ 36V；Offset voltage maximum :+7mv.This series of comparisons has one The characteristic of individual uniqueness: even if being operated under single supply voltage, its common mode input also can include no-voltage.Application: Limiter comparator, analog-digital converter, delay generator, voltage controlled oscillator, clock timer, many master oscillators and high voltage numeral Gate etc..

6. TC35i gsm module: TC35i gsm module is a technical grade gsm module supporting Chinese short message breath, work Making in EGSM900 and GSM1800 two-band, power range is direct current 3.3～4.8V, and current drain resting state is 3.5mA, idle condition is 25mA, and emission state is 300mA (averagely), 2.5A peak value；Voice-and-data signal, merit can be transmitted Consume and be respectively 2W and 1W at EGSM900 (4 class) and GSM1800 (1 class), connected respectively by interface connector and antenna connector Connect SIM card reader and antenna.SIM voltage is that the data-interface (CMOS level) of 3V/1.8V, TC35i can be double by AT order To transmission instruction and data, optional baud rate is 300b/s～115kb/s, and auto-baud is 1.2kb/s～115kb/s. It supports the SMS (Short Message Service, short message) of Text and PDU form, can be by AT order or cut-off signals Realization is restarted and fault recovery.

Remote-control key adds the data transmission blocks (integrated or hang on Key hook) of this patent, and passes through nothing The mode (frequency is different from remote-control key signal frequency, it is to avoid masked signal by automobile interference unit simultaneously) of line transmission will be fixing Data message be sent to the data reception module of host side in car.After Data Matching is the most unsuccessful, i.e. it is believed that both Transmission range more than the first tens meters of scopes of design, due to data transmission blocks and remote-control key one, remote-control key is described Distance away from the car also has tens meters, and key owner should send car locking intent instructions in this case.Now, automobile door lock position Detection module is by the most corresponding this instruction of the position judgment centrally controrlled locking system of the mechanism that latches, and as do not responded, sends to car owner Note prompting message.

System Working Principle

Whole system includes wireless data transceiving circuit, the mechanism position that latches testing circuit, SMS alarm circuit three part Composition.Specific works principle is as follows: the data transmission blocks of (1) key side, using AT89S52 single-chip microcomputer as data source, uses it Fixed data is 315MHz data transmission blocks by the frequency being made up of LR1 (three feet) R315 sound table resonator by TXD interface It is wirelessly transmitted to the 315MHz superregenrative reception module with STC11F60XE single-chip microcomputer as core.Once Data Matching is unsuccessful After, i.e. judge send car locking intent instructions.(2) whether central door lock is responsive to the instruction of this car locking by the mechanism position inspection that latches Slowdown monitoring circuit judges, owing to latching, mechanism's its mechanical part after response car locking instruction has certain displacement amount, so can be thereon Installing a strip material additional is plastics or metal brake sack, and its position just makes to latch and is in H206 photoswitch groove, during unblock at Outside H206 photoswitch groove.Two above location status are changed into height by the voltage comparator then utilizing LM2903 to constitute Low level is sent in the P1.3 interface of STC11F60XE single-chip microcomputer, and then realizes the judgement whether responding vehicle-locking signal.(3) Once judge not respond instruction, the prompting message about car locking can be sent by TC35i gsm module to designated mobile phone.

This apparatus structure is simple, and energy consumption is low, and safety is high, ensure that the peace of article in car the most greatly Entirely.Working as engine misses, occupant, after car, is detected, once by the position of the mechanism that latches centrally controrlled locking system Find (carelessness is forgotten or disturbs lower vacation lock) when its position is in the state not responding remote-control key vehicle-locking signal, i.e. to car owner's hands Machine sends urgent prompting message.

The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and Retouching also should be regarded as protection domain of the present utility model.

Claims (4)

1. the unlocked alarm device of car door, it is characterised in that: include AT89S52 single-chip microcomputer, STC11F60XE single-chip microcomputer, latch Detection module and GSM sending module, described AT89S52 single-chip microcomputer with data transmission blocks, described STC11F60XE monolithic Machine is with data reception module；Described data transmission blocks is for sending vehicle-locking signal to described data reception module；Described number It is used for receiving vehicle-locking signal according to receiver module；The described detection module that latches is for detecting the mechanical movement situation of automotive lock, and incites somebody to action The mechanical movement situation information of automotive lock is sent to described AT89S52 single-chip microcomputer by comparator.

The unlocked alarm device of car door the most according to claim 1, it is characterised in that the detection module that latches described in: uses H206 Photoswitch.

The unlocked alarm device of car door the most according to claim 1, it is characterised in that: described comparator uses LM2903 voltage Dual comparator.

The unlocked alarm device of car door the most according to claim 1, it is characterised in that: described GSM sending module uses TC35i Gsm module.