CN2447538Y - Burglar alarm with cipher for motorcycle - Google Patents

Abstract

The utility model discloses a cipher burglar alarm for a motorcycle. The utility model is together composed of a coding circuit which is composed of three decimal counters and three keys, an opening circuit which is composed of four strobing gates, a transistor, and a relay, a delay control circuit which is composed of two transistors, an integrated circuit, and a controlled silicon, and an alarm circuit which is composed of an alarm whistle sound music integrated circuit, a power amplifier, and a loudspeaker. The utility model has the advantages of novel design, simple and practical characters, concealed installation, high security, stable performance, and low cost.

Description

Motorcycle cipher anti theft warning device

The utility model relates to a kind of cipher anti theft warning device, particularly relates to the cipher anti theft warning device of using on a kind of motorcycle.

Along with improving constantly of people's living standard, motorcycle progresses into huge numbers of families, brings great convenience for people's life, work, but also brings new problem, i.e. motorcycle anti-theft problem simultaneously.Many kinds of alarms are arranged on the market, and all unsatisfactory, what have can not report to the police, and what have does not have a password, though have have password but too complicated, and cost an arm and a leg, be difficult to promote.

The purpose of design of the utility model motorcycle cipher anti-theft device, be to overcome the deficiency of the various alarms of present appearance, be provided with cryptochannel, to increase its control security performance: be provided with the flame-out warning function of time-delay, to prevent that motorcycle from being stolen by the people unconsciously, improved anti-theft capability greatly.

For achieving the above object, the technical solution of the utility model is to be made of coding circuit, open circuit, delay control circuit and warning circuit, wherein:

A) coding circuit is by three decimal counter IC ₁, IC ₂, IC ₃With three button S ₁, S ₂, S ₃And the password input circlult of prescribing a time limit constitutes; Button S ₁The positive pole of a termination power, another termination IC ₁14 pin; Button S ₂A termination IC ₁Output terminal 2 pin, another termination IC ₂14 pin; Button S ₃A termination IC ₂Output terminal 1 pin, another termination IC ₃14 pin; At IC ₁And IC ₂Output terminal be provided with password input delay switching circuit, by D ₁, R ₅, C ₆Constitute first password input delay switching circuit, resistance R ₅One termination IC ₁Output terminal, the other end and D ₁, C ₅Link to each other D ₁Another termination IC ₁Reset terminal, C ₅The other end ground connection; By D ₂, R ₆C ₆Constitute second password input delay switching circuit, resistance R ₆One termination IC ₂Output terminal, the other end and D ₂, C ₆Link to each other D ₂Another termination IC ₂Reset terminal, C ₆The other end ground connection;

B) open circuit is by four gated circuit IC ₅, IC ₆, IC ₇, IC ₈, a transistor V ₃, a relay J constitute; IC ₅The A input end by diode D ₅Link to each other with positive source, B holds through second tube sheet D ₄With IC ₃Output terminal 9 pin link to each other IC ₅Output terminal and IC ₆Input end link to each other IC ₆Output terminal one tunnel and IC ₇Input end link to each other, another road is through R ₁₂, D ₆Be sent to IC again ₅The B input end, IC ₇Output terminal and IC ₈B ' input end link to each other IC ₈A ' end through R ₁₄, D ₇With IC ₄Output terminal 3 pin link to each other, through D ₈Link to each other IC with the hot junction of motorcycle neutral gear tutorial light H ₈Output terminal through R ₁₆With transistor V ₃Base stage link to each other V ₃Grounded-emitter connection, collector connecting relay J, the break-make of the ignition circuit of relay J control motorcycle.

C) delay control circuit is by two transistor V ₁, V ₂, IC ₄And a controllable silicon BCR constitutes; Transistor V ₁Base stage through D ₃Meet IC ₃3 pin, the current collection collection meets transistor V ₂Base stage, V ₂Collector electrode connect positive source, emitter meets IC ₄2,6 pin, and at transistor V ₂Collector electrode and emitter between by capacitor C is arranged ₉, IC ₄Output terminal 3 pin one tunnel join with controllable silicon BCR, control its conducting, IC is sent on another road ₈A ' end, the break-make of controllable silicon BCR control warning circuit power supply.

D) warning circuit is by police whistle sound music integrated circuit IC ₉, power amplification circuit IC ₁₀And loudspeaker Y constitutes; Delay circuit work, the output high level makes the BCR conducting, IC ₉, IC ₁₀Get electric work, IC ₉The audio signal of output is sent into amplifier IC ₁₀Amplify, send loud and clear chimes of doom through loudspeaker Y.

The utility model is provided with coding circuit, delay control circuit, open circuit and warning circuit owing to adopted technique scheme, and disguised strong, stability is high, reaches effective antitheft purpose.

Accompanying drawing is the circuit theory diagrams of the utility model motorcycle cipher anti-theft device

Be further described below in conjunction with the working principle of accompanying drawing the utility model motorcycle cipher anti theft warning device:

In the drawings, three decimal counter IC ₁, IC ₂, IC ₃, a small amount of R, C and three button S ₁, S ₂, S ₃Form coding circuit.Diode D ₁, D ₂, R ₅, R ₆, C ₅, C ₆Form the password input circlult of prescribing a time limit.Closing Switch K ₁, scaling circuit gets electric, three counter IC ₁, IC ₂, IC ₃3 pin all export high level, this moment press by strong S ₁, whenever press once IC ₁The output terminal level will change once.When pressing one time, IC ₁2 pin Q ₁The output high level passes through R ₅To C ₅The charging, be charged to certain numerical value after, D ₁Conducting, this voltage acts on IC ₁Reset terminal, counter IC ₁Be reset, choose suitable RC value, make Q ₁Keep high level output in 7 seconds, in these 7 seconds, press S again ₂5 times, IC ₂1 pin Q ₅Also can export a high level that keeps 7 seconds, press S then ₃8 times, IC ₃9 pin Q ₈Can export a high level again, and pass through D ₄Be sent to IC ₅The B input end, for open circuit provides control voltage, this process only continued for 7 seconds, if can not correctly input password, will make IC in this 7 second ₃3 pin Q ₀Keep high level, the high level of its output will make delay control circuit work, sends alarm sound.Though this circuit is very simple, its confidentiality is very strong.Because want for open circuit provides control voltage, must be according to S ₁, S ₂, S ₃Order, it is just passable to press 1 time, 5 times, 8 times respectively, and must import just effectively in 7 seconds, is also out of the question in any case only rely on fortune.Want to change the password electricity and be easy to, as long as change IC ₁, IC ₂, IC ₃Output terminal get final product.For example, IC ₁Output terminal reconfiguration 5 pin Q ₆, IC ₂Reconfiguration 7 pin Q ₃, IC ₃Reconfiguration 4 pin Q ₂, press number of times and promptly become 6,3,2.

Open circuit is by four storbing gate IC ₅, IC ₆, IC ₇, IC ₈, a transistor V ₃A relay J constitutes.Its core is storbing gate IC ₈, the neutral switch K of its input end A ' and motorcycle ₂The hot junction and the time-delay limiting circuit output terminal link to each other the other end B ' and storbing gate IC ₇Output terminal link to each other storbing gate IC ₅A end link to each other B input end and coding circuit IC with positive source ₃Output terminal link to each other.Closing Switch K ₁, storbing gate IC ₁A end be high level, do not input password or import when wrong, the B input end is a low level, IC ₅The output high level, IC ₆Output low level, IC ₇The output high level, IC ₈B ' input end be high level, A ' input end is at K ₂When closed is low level, IC ₈The output high level, transistor V ₃Saturation conduction, the relay J adhesive, ignition circuit is connected, and motor can start, if engage a gear, neutral switch K ₂Disconnect IC ₈A ' end become high level, IC ₈Be output low level, V ₃End, relay J is separated, and ignition circuit disconnects, engine misses, and motorcycle can not travel, and surpasses after 10 seconds, and motorcycle promptly sends chimes of doom.If correctly input password, IC ₃9 pin Q ₈Can export high level, storbing gate IC ₅A, B two ends be high level, its output low level, IC ₆The output high level, this high level one tunnel is sent to IC ₅B end, make it keep output low level, another road makes IC ₇Output low level, i.e. IC ₆B ' hold and be low level, IC during neutral gear ₈A ' hold and be low level, IC ₈The output high level, if engage a gear, A ' end becomes high level, IC ₈Still export high level, motorcycle can normally start and travels.

Delay control circuit is by two transistor V ₁, V ₂, an IC ₄Constitute with a controllable silicon BCR.Closed K ₁, counter IC ₃3 pin output high level, this high level makes transistor V ₁Saturation conduction, V ₂End capacitor C ₉Become charged state by original short-circuit condition, make IC ₄2, the high level of 6 pin is little by little reduced to low level.The process that this section level descends promptly is a delay time.In the delay time, though can ride ato unit, engage a gear can make engine misses, can not travel.Even engage a gear is not worked as C ₉Charging voltage when rising to 2/3 supply voltage, IC ₄Working state just overturn, its 3 pin becomes high level by original low level, this high level can make storbing gate IC ₈A ' end become high level, make IC ₈Output low level makes engine misses, thereby limits travelling of motorcycle.IC ₄The high level of output also can make controllable silicon BCR conducting simultaneously, and warning circuit gets the electric chimes of doom that sends.In the delay time, if adopt electric switch ato unit, IC ₄Working state can overturn rapidly, fail also high level, not only can ato unit, but can make warning circuit work send chimes of doom.

Warning circuit is by police whistle sound music integrated circuit IC ₉, power amplifier IC ₁₀Constitute with loudspeaker Y.After the controllable silicon BCR conducting, IC ₉, IC ₁₀Get electric work, IC ₉The audio signal of output is sent into amplifier IC ₁₀Amplify, send chimes of doom through loudspeaker Y.The utility model motorcycle cipher anti theft warning device can be welded in a 5 * 8cm ²Circuit board on, the preceding photograph that is contained in motorcycle is too in the lamp housing, button S ₁, S ₂, S ₃Draw with line, be installed in a shelter and get final product.

The utility model motorcycle cipher anti theft warning device does not have specific (special) requirements to the selection of electronic component, and resistance can be selected the fixed carbon resister of 1/8w, R for use ₄Select the fixed carbon resister of 1/2w for use, electrochemical capacitor can be selected the above common electric capacity of withstand voltage 16V for use, the optional ceramic disc capacitor of other electric capacity, and diode can be used 1N4001, and triode can be with 9013 or 9014 etc., IC ₁, IC ₂, IC ₃Can select CD4017 for use, IC ₄Be selected to 555 time base circuits, as NE555, MA555 etc., IC ₅-IC ₈Can select a CD4093 for use, IC ₉Can select KD9561 for use, IC ₁₀Available LM386, relay can be selected JZC-22F, 23F etc., the optional used as television sensitive switch of using of key switch for use.

Claims (2)

1, a kind of motor cycle cipher anti theft warning device is characterized in that it is to be made of coding circuit, open circuit, delay control circuit, warning circuit, wherein:

A) coding circuit is by three decimal counter IC ₁, IC ₂, IC ₃With three button S ₁, S ₂, S ₃And the password input circlult of prescribing a time limit constitutes; Button S ₁The positive pole of a termination power, another termination IC ₁14 pin; Button S ₂A termination IC ₁Output terminal 2 pin, another termination IC ₂14 pin; Button S ₃A termination IC ₂Output terminal 1 pin, another termination IC ₃14 pin;

B) open circuit is by four gated circuit IC ₅, IC ₆, IC ₇, IC ₈, a transistor V ₃, a relay J constitute; IC ₅The A input end by diode D ₅Link to each other with positive source, B holds through diode D ₄With IC ₃Output terminal 9 pin link to each other IC ₅Output terminal and IC ₆Input end link to each other IC ₆Output terminal one tunnel and IC ₇Input end link to each other, another road is through R ₁₂, D ₆Be sent to IC again ₅The B input end, IC ₇Output terminal and IC ₈B ' input end link to each other IC ₈A ' end through R ₁₄, D ₇With IC ₄Output terminal 3 pin link to each other, through D ₈Link to each other IC with the hot junction of motorcycle neutral gear tutorial light II ₈Output terminal through R ₁₆With transistor V ₃Base stage link to each other V ₃Grounded-emitter connection, collector connecting relay J, the break-make of the ignition circuit of relay J control motorcycle;

C) delay control circuit is by two transistor V ₁, V ₂, IC ₄And a controllable silicon BCR constitutes; Transistor V ₁Base stage through D ₃Meet IC ₃3 pin, the current collection collection meets transistor V ₂Base stage, V ₂Collector electrode connect positive source, emitter meets IC ₄2,6 pin, and at transistor V ₂Collector electrode and emitter between be connected to capacitor C ₉, IC ₄Output terminal 3 pin one tunnel join with controllable silicon BCR, control its conducting, IC is sent on another road ₈A ' end, the break-make of controllable silicon BCR control warning circuit power supply;

D) warning circuit is by police whistle sound music integrated circuit IC ₉, power amplification circuit IC ₁₀And loudspeaker Y constitutes; Delay circuit work, the output high level makes the BCR conducting, IC ₉, IC ₁₀Get electric work, IC ₉The audio signal of output is sent into the device IC that sets fire ₁₀Amplify, send loud and clear chimes of doom through loudspeaker Y.

2, motorcycle cipher anti theft warning device according to claim 1 is characterized in that: be provided with in the described coding circuit two passwords prescribe a time limit input circlult respectively with IC ₁And IC ₂Output terminal link.

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