CN2198638Y

CN2198638Y - Multi-way coding ridio anti-theft alarm for building room

Info

Publication number: CN2198638Y
Application number: CN 94220703
Authority: CN
Inventors: 张文录
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-09-12
Filing date: 1994-09-12
Publication date: 1995-05-24
Anticipated expiration: 2004-09-12

Abstract

The utility model relates to a multi-way coding radio anti-theft alarm for building rooms, which is composed of a transmitting device and a receiving device, wherein, the transmitting device is composed of an encode circuit 1, a special module for transmission 2, a power supply circuit 3 and a power supply monitoring circuit 4. When a room is stolen, a gate controlled switch is closed to switch on the power supply of the transmitting device and send out the coded pulse-modulated signals; the receiving device is composed of a special module for receiving 1, a decoding circuit 2, an alarm circuit 3, a power supply circuit 4 and a power supply monitoring circuit 5; when the receiving device is successful to decode, the alarm circuit is triggered to alarm. The utility model has the advantages of monitoring performance for supply voltage, simple structure, small size, power consumption saving, low cost, no need for adjustment and high reliability.

Description

Multi-way coding ridio anti-theft alarm for building room

The utility model relates to a kind of burglar alarm, and especially a kind of small-sized multiplex coding wireless anti-theft device is specially adapted to the burglar alarm of cabin downstairs of each resident family in the residence building.

At present, various wireless anti-theft alarming devices are more in the society, also do not occur on the building cabin multiplex coding wireless anti-theft alarming device market.Understand according to designer of the present utility model, other purposes multiplex coding wireless anti-theft alarming device coded number is less, the false alarm possibility is big, do not possess power supply supervisory circuit, alarm sound also can startle the criminal, be unfavorable for arresting the criminal when raising, and complex structure, power consumption is big, cost is high does not all have large-scale popularization to use.

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provide a kind of coded number can reach 60,000 surplus, the building cabin multiplex coding wireless anti-theft alarming device that volume is little, simple in structure, convenient for production, cost is low, reliability is high.

The purpose of this utility model is achieved through the following technical solutions: it is made up of a wireless signal transmitting device and wireless signal receiving trap two parts.Emitter is contained in the building cabin, and it is made up of gate controlled switch, power circuit, power supply supervisory circuit, coding circuit, ultrahigh frequency radiating circuit, antenna.Gate controlled switch closure then when the cabin that warning device is housed is stolen, connect the emitter power supply, the coded pulse modulation ultrahigh frequency circuit that the coding circuit generation has been finished, and launch by antenna, receiving trap is placed in the bedroom of building or other can audible place, and it is made up of receiving antenna, detection amplification and rectification circuit, decoding circuit, warning circuit, power supply and power supply supervisory circuit.The pulse code modulation signal that sends by the ultrahigh frequency radiating circuit, compare by sending into decoding circuit behind receiving antenna, the detection amplification and rectification circuit, when if the coding of the encoding and decoding circuit of pulse control signal conforms to (decoding successfully), corresponding data output end output high-level control signal and self-locking, trigger warning circuit, thereby reach the purpose of warning.

For preventing that false alarm from having adopted state-of-the-art coding and decoding circuit, peripheral cell has only a resistance, changes this resistance and can determine output impulse hunting frequency arbitrarily, and it has seven four attitude geocodings, and have four figures according to input and output terminal, it can produce up to 4 ⁷* 4=65536 organizes non-interfering coded pulse, has strengthened reliability widely.

In the utility model emitter in ultrahigh frequency radiating circuit and the receiving trap detection amplification and rectification circuit all adopt special module, do not need debugging, weld and errorlessly can reach designing requirement.All adopt the integrated voltage monitoring circuit of three ends in the transmitting and receiving device, the power consumption situation of monitoring power supply so that in time change battery, guarantees design performance at any time.

Owing to adopt such scheme, the utlity model has the advantage that supply voltage is monitored, the body kind is little, simple in structure, convenient for production, cost is low, reliability is high.

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is the utility model emitter circuit theory diagrams

Fig. 2 is the utility model receiving trap circuit theory diagrams

Fig. 3 is the utility model transmitting and receiving device circuit block diagram

In Fig. 1, four attitude coding circuit A ₁, resistance R ₅, three end transmitter module A ₂Be electrically connected four attitude coding circuit A successively ₁Peripheral cell has only a resistance R ₁, and be electrically connected with the 15th pin, the 16th pin, change this resistance and can change the impulse hunting frequency, four retainings, seven bit address code switch K ₃Respectively with four attitude coding circuit A ₁The 1st pin～the 8th pin, power cathode are electrically connected and are unsettled, the 1st pin is the public connecting pin of the 4th kind of state, with the 2nd pin～be the 4th kind of state when the 8th pin is connected, other three kinds of states connect the 18th pin, power cathode, unsettled respectively, can form 16384 codings in this case, the second gear four figures is according to code switch K ₄Respectively with four attitude coding circuit A ₁The 10th pin～the 13rd pin, the 18th pin, power cathode are electrically connected, at this moment coded number can reach 65536, when the 10th pin～the 13rd pin connects the 18th pin (all the other connect power cathode) respectively, if decode successfully, then the data output end of decoding circuit correspondence is exported high level and self-locking respectively, the control warning circuit is reported to the police gate controlled switch K ₂One end and resistance R ₂Be electrically connected the other end and four attitude coding circuit A ₁The 18th pin is electrically connected, as the stolen gate controlled switch K of cabin ₂Closure is by four attitude coding circuit A ₁The 17th pin output encoder pulse is through resistance R ₅Modulate three end transmitter module A ₂, and launch power supply supervisory circuit A by inside antenna ₃Form independently power supply supervisory circuit, button switch K with peripheral cell ₅With power supply supervisory circuit A ₃Earth terminal is in series, and presses the button K switch ₅Direct supply be can detect at any time and situation, light emitting diode D consumed ₃Show the direct supply brownout when lighting, need more renew battery and guarantee design performance.

In Fig. 2, three terminations are received modules A ₁Output terminal and four attitude decoding circuit A ₂The 14th pin is electrically connected, four attitude decoding circuit A ₂The 10th pin～the 13rd pin respectively with resistance R ₄～R ₁Be electrically connected resistance R ₄～R ₁, switch K ₂, diode D ₁Be electrically connected diode D successively ₁The other end and warning circuit A ₃The 1st pin is electrically connected, power supply supervisory circuit A ₄With power supply supervisory circuit A among Fig. 1 ₃Identical, four attitudes, seven bit address code switch K ₁Respectively with four attitude decoding circuit A ₂The 1st pin～the 8th pin, the 18th pin, power cathode are electrically connected and are unsettled, four attitude coding circuit A among cryptoprinciple and Fig. 1 ₁Identical, when coding is identical, by four attitude decoding circuit A ₂The 10th pin～the 13rd pin corresponding output one high level and self-locking, control warning circuit A ₃Thereby, reach the purpose of warning.

Claims

1, a kind of building cabin multiplex coding wireless anti-theft alarming device, it is made up of emitter and receiving trap two parts, it is characterized in that:

Its four attitudes coding circuit of emitter A ₁Output terminal (the 17th pin) and resistance R ₅Link to each other resistance R ₅The other end and three end transmitter module A ₂Input end links to each other, power supply supervisory circuit A ₃Earth terminal and button switch K ₅Series connection;

Its three termination of receiving trap is received modules A ₁Output terminal and four attitude decoding circuit A ₂Input end the 14th pin links to each other, four attitude decoding circuit A ₂Output terminal the 10th pin～the 13rd pin respectively with switch K ₂Link to each other switch K ₂The other end and diode D ₁Link to each other diode D ₁The other end and warning circuit A ₃Control end the 1st pin links to each other, power supply supervisory circuit A ₄Earth terminal and button switch K ₃Be in series.

2, building cabin multiplex coding wireless anti-theft alarming device according to claim 1, it is characterized in that: transmitting and receiving device has adopted transmitter module A ₂With receiver module A ₁, emission and the wireless inside modules that is installed in of reception.

3, building cabin multiplex coding wireless anti-theft alarming device according to claim 1 is characterized in that: four attitude coding circuit A ₁With four attitude decoding circuit A ₂Peripheral cell has only a resistance, and is connected with the 15th pin, the 16th pin, changes this resistance and can determine the impulse hunting frequency arbitrarily.

4, building cabin multiplex coding wireless anti-theft alarming device according to claim 1 is characterized in that: emitter power supply supervisory circuit A ₃, receiving trap power supply supervisory circuit A ₄Only press the button K switch ₅, K ₃Just power consumption when (promptly detecting the electrical source consumption situation), other not power consumption of state.