CN2733480Y - Multi-point cluster control remote anti-theft alarm device - Google Patents
Multi-point cluster control remote anti-theft alarm device Download PDFInfo
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- CN2733480Y CN2733480Y CN 200420012509 CN200420012509U CN2733480Y CN 2733480 Y CN2733480 Y CN 2733480Y CN 200420012509 CN200420012509 CN 200420012509 CN 200420012509 U CN200420012509 U CN 200420012509U CN 2733480 Y CN2733480 Y CN 2733480Y
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Abstract
The utility model relates to a multi-point cluster control remote anti-theft alarm device which transfers alarm signals by means of the telephone line. The utility model which comprises at lease an alarm signal wireless transmitter and a wireless receive teletransmission is suitable for the anti-theft alarm of families and warehouses. A plurality of alarm signal wireless transmitters can be placed at access points such as the doorway and the window which are often entered by robbers. When the robbers enter, a wireless transmission circuit is started to work for transmitting the alarm signal. After the wireless receive teletransmission arranged at the side of the telephone of the owner receives the alarm signal, a microprocessor is started to complete programs of offhooking, dialling, detecting the signal tone, and voice broadcast so that the alarm voice left by the owner in advance transfers to the owner by the telephone left by the owner in advance to attain the goal of the alarming to the owner. The utility model has the advantages of high detecting sensitivity precision of the anti-theft alarm signal, small device volume, and lower cost. The utility model can carry out the multi-point cluster control and the remote transmission by the telephone line.
Description
Technical field
The utility model relates to a kind of warning device, is a kind of multiple spot team control remote antitheft alarm device that utilizes telephone wire to transmit alerting signal specifically.
Background technology
Existing burglar alarm is more, as family's door window antitheft device, car alarm etc.Transmission alerting signal distance is near, the alarm detection precision is low, single-point is reported to the police is difficult for formation team control, warning device complex structure, the high deficiency of cost but exist in various degree.
Summary of the invention
The purpose of this utility model provides a kind of multiple spot team control remote antitheft alarm device that can transmit alerting signal by telephone wire.
The purpose of this utility model is realized by following technical scheme:
Multiple spot team control remote antitheft alarm device, form by at least one alerting signal radio transmitters and wireless receiving teletransmission device, described alerting signal radio transmitters is made up of alerting signal testing circuit, wireless transmission circuit, is characterized in: the input in the described alerting signal testing circuit is made up of bridge-type force sensing resistance circuit; Described wireless receiving teletransmission device is made up of wireless receiving circuit, microprocessor, signal tone testing circuit, circuit for answering, dual-tone dialing circuit, voice broadcasting circuit, telephone number storage chip, dialing keypad, described wireless receiving circuit is connected with microprocessor, microprocessor is connected with circuit for answering through relay, and microprocessor is broadcast circuit, telephone number storage chip with dual-tone dialing circuit, signal tone testing circuit, voice, the keypad that dials is connected.
Wireless transmission circuit in the alerting signal radio transmitters is formed transmission frequency 144-148MHZ by NE555 oscillatory circuit, TWH630 wireless transmitter module.Wireless receiving circuit in the wireless receiving teletransmission device is made up of TWH631 wireless receiving module, NE567 audio decoder chip, the signal tone testing circuit is made up of tone decoder NE567 and peripheral resistance thereof, and voice are broadcast circuit and are made up of SR9K30, LM386, recording microphone.Microprocessor in the wireless receiving teletransmission device is that 89C2051, dual-tone dialing circuit are that MT8888, telephone number storage chip are AT2401.Circuit for answering in the wireless receiving teletransmission device is connected with telephone wire by 300 ohm of adjustable resistances, relay normally open contact K1 series connection back, and relay coil is connected with the P0.3 pin of microprocessor 89C2051.
The utility model is applicable to the burglar alarm in places such as family, warehouse, the alerting signal radio transmitters can be provided with a plurality of, be placed on the porch that robbers such as doorway, window often enter, when the robber enters, gentle breeze must be arranged, even have very faint wind also can destroy the balance of bridge-type force sensing resistance circuit, send out alerting signal so start wireless transmission circuit work.After being arranged on the other wireless receiving teletransmission device of owner's telephone set and receiving alerting signal, start microprocessor 89C2051 work and finish off-hook, dialing, signal tone detection, voice broadcasting supervisor successively, the alarm voice that the owner is reserved in advance sends the owner to by the phone (mobile phone) that the owner reserves, and reaches the purpose of reporting to the police to the owner.
The utlity model has the sensitive precision height of burglar alarm input, the little price of equipment volume low, can realize the multiple spot team control, by advantages such as telephone wire teletransmissions, have very big promotional value, will produce than great society benefit and economic benefit after applying.
Description of drawings:
Fig. 1 is a composition frame chart of the present utility model.
Fig. 2 is the circuit diagram of the alerting signal radio transmitters of a kind of embodiment of the utility model.
Fig. 3 is the circuit diagram of the wireless receiving teletransmission device of a kind of embodiment of the utility model.
Embodiment
The utility model is further described with the embodiment that provides below in conjunction with accompanying drawing.
With reference to Fig. 1, the utility model is made up of alerting signal radio transmitters 1 and wireless receiving teletransmission device 2 two parts.The alerting signal radio transmitters is made up of alerting signal testing circuit 101, wireless transmission circuit 102, and the input in the alerting signal testing circuit is finished by bridge-type force sensing resistance circuit.Wireless receiving teletransmission device is made up of wireless receiving circuit 201, microprocessor 202, signal tone testing circuit 204, circuit for answering 203, dual-tone dialing circuit 205, voice broadcasting circuit 206, telephone number storage chip 209, dialing keypad 208, wireless receiving circuit is connected with microprocessor, microprocessor is connected with circuit for answering through relay 207, and microprocessor is broadcast circuit, telephone number storage chip with dual-tone dialing circuit, signal tone testing circuit, voice, the keypad that dials is connected.
Carefully state the course of work of the present utility model below in conjunction with Fig. 2, Fig. 3.
Alerting signal radio transmitters 1 is installed in doorway or window, bridge-type force sensing resistance in the alerting signal testing circuit 101 is selected BF350 type force sensing resistance for use, force sensing resistance is sticked with glue on a thin slice, thin slice is towards door or window, thin slice can not produce deformation when calm at ordinary times, and thin slice produces deformation when wind.When door and window is pried open when entering by the robber, just have wind to this thin slice, thin slice can produce miniature deformation is destroyed the circuit balancing of bridge-type force sensing resistance, at this moment, a little electromotive force appears between 2,3 pin of OP07, this electromotive force makes triode D667 saturation conduction after amplifying, the 2 pin level step-downs of NE555 become high level so upset takes place the 3 pin current potentials of NE555 by low level.This high level makes triode 9013,9014 conductings, and wireless transmission circuit must be established beginning work by cable.Wireless transmission circuit 102 is made up of NE555 oscillatory circuit, TWH630 wireless transmitter module, and NE555 works in the multivibrator state, and oscillation frequency accurately is transferred to assigned frequency by Rw1.The sound signal of NE555 output sends by the TWH630 transmitter module, and its transmission center frequency values is selected in amateur frequency band 144-148MHZ.
The wireless receiving circuit 201 of wireless receiving teletransmission device 2 is made up of TWH631 wireless receiving module, NE567 audio decoder chip, the audio decoder chip has phase-locked loop, its centre frequency determines that by Rw and capacitor C 1 every cover warning device makes the centre frequency of wireless receiving circuit identical with the centre frequency of transtation mission circuit through adjustment.The 8 pin output low levels of NE567 when receiving the signal that transtation mission circuit sends flow to the P0.2 pin of microprocessor 202, microprocessor 89C2051 judge the P0.2 pin by high level step-down level after, pick up counting, timing time is 20S (second).If the owner enters in timing time, he can press stop button, removes alerting signal and sends.If unmanned the releasing reported to the police in timing time, illustrated and taken place situations such as the robber enters then microprocessor 89C2051 begins to carry out the alerting signal convey program.
At first, the P0.3 pin of microprocessor 89C2051 puts 1, and relay 207 gets electric, its normally opened contact K1 closure, and the resistance R j in the circuit for answering 203 is parallel on the telephone wire, finishes off-hook.According to the regulation of national telecommunication department, the direct current resistance of telephone set when off hook state is less than 300 ohm, and when user's off-hook, telephone set connects about 300 ohm resistance by hook switch, makes the electric current in whole telephone wire loop be about 30mA.For this reason, circuit for answering is transferred to 300 ohm adjustable resistor with a resistance and is connected on the telephone wire by relay normally open contact, when relay closes, just automatically with this adjustable resistor and receive on the telephone wire, realizes the simulation off-hook.
Behind the off-hook, microprocessor 89C2051 will dial successively according to the telephone number that is stored in advance in the telephone number storage chip AT2401 chip, and these telephone numbers can be WorkPhone number, cell-phone number, locality-police's cell-phone number of male owner's WorkPhone number, cell-phone number, women owner or the like.Telephone number among the AT2401 be buy this device afterwards by user oneself by machine on 208 typings of dialing keypad, on the dialing keypad input function key and 0-9 10 numeric keys are arranged, show to microprocessor 89C2051 request typing by the input function key table earlier during user's typing, press ten key input telephone number again, show that by the input function key table typing finishes again at last, but 100 telephone numbers of typing successively.Microprocessor 89C2051 reads key assignments by P0.6, P0.7, P1.6, P1.7 pin being followed inspection, behind the telephone number reading into the microprocessor 89C2051 internal memory, microprocessor 89C2051 carries out the telephone number write operation by P0.4, P0.5 pin to AT2401, and the telephone number in the internal memory is written among the AT2401.P0.4 elder generation zero clearing when writing beginning, the highest binary coding of ASCII character that occurs the first figure place sign indicating number of telephone number on the P0.5, then P0.4 puts 1, rise thereon along this coding and will be written in the internal memory of AT2401, write other binary coding successively, finally finish the ablation process of a telephone number.
During the dialing beginning, microprocessor 89C2051 reads the telephone number that presets from AT2401, P0.4 puts 1 clear again 0 earlier when reading beginning, the highest binary coding of ASCII character that when its negative edge, occurs the first figure place sign indicating number of telephone number on the P0.5, this coding is read in the internal memory of microprocessor 89C2051 by P0.5, read other binary coding successively, finally finish the process that reads of a telephone number.After reading telephone number and finishing, microprocessor 89C2051 passes through P1.0, P1.1, P1.2, P1.3, the P1.5 mouth carries out write operation to the MT8888 of dual-tone dialing circuit 205, at first with P1.5 clear 0, microprocessor 89C2051 is written to P1.0 respectively with preceding 4 binary codings of the ASCII character of the first figure place sign indicating number of a telephone number then, P1.1, P1.2, on the P1.3 mouth, again P1.5 is put 1, rise thereon along P1.0, P1.1, P1.2, data on the P1.3 mouth will be written among the MT8888, use the same method and back 4 binary codings of the ASCII character of the first figure place sign indicating number of this telephone number can be written among the MT8888, so just finish the writing of the first figure place sign indicating number of a telephone number, can finish writing of other figure place sign indicating number successively.
After telephone number is written to MT8888, microprocessor 89C2051 puts 1 with P1.4 pin level, begin to start MT8888 and carry out voice-frequency dialing, MT8888 is that the dtmf code that MITEL company produces sends special chip, it is the dtmf signal transceiver integrated circuit that adopts the CMOS explained hereafter, the switched capacitor D/A transducer that distorted signals is little, frequency stability is high is partly adopted in its transmission, can send 16 kinds of dual tone multi-frequency dtmf signals.When beginning to dial, 1209,1336,1,447 697,770,852 MT8888 looks into the strong value of inside solidification and the frequency table of comparisons according to every telephone number, by a kind of bass of selection of tabling look-up (bass has four kinds of frequencies:, 941HZ) and a kind of high audio (high audio also has four kinds of frequencies:, 1633HZ).Be converted to the stack of sinusoidal wave back by inner D/A transducer then, and output on the telephone wire from the TON pin.
Carry out in the process of voice-frequency dialing at MT8888, microprocessor 89C2051 is in waiting status (finishing by time-delay 20S program) always, after wait finishes, and the state of beginning detection line.The detection line state is finished by signal tone testing circuit 204, and the signal tone testing circuit is made up of tone decoder NE567 and peripheral resistance thereof.The frequency and the phase place of inner quadrature phase detector comparator input signal of NE567 and current control oscillator signal, when input signal was in allocated frequency band, signal was locked, 8 pin output low levels.The function of several signals and feature are on the telephone wire: ring-back tone: expression the called subscriber be in by ringing condition, and adopting frequency is the AC signal of 450HZ, and it is the interrupted signal of 5S (1S is logical, and 4S is disconnected); Busy tone: representing to continue this, to run into line be busy or user busy, and adopting frequency is the AC signal of 450HZ, and it is the interrupted signal of 0.7S (0.35S is logical, and 0.35S is disconnected).When the signal on the telephone wire is 450HZ, its 8 pin output low level of NE567 locking signal.Photoelectrical coupler TL1 conducting, the P0.0 pin level of microprocessor 89C2051 uprises, and microprocessor 89C2051 judges signal characteristic on the circuit by the P0.0 pin, determines that with this signal on circuit is ring-back tone or busy tone.If busy tone explanation circuit is in busy condition, then microprocessor 89C2051 starts the dialing of next telephone number.If ring-back tone illustrates that the circuit called phone is in ringing condition, the signal tone on circuit after the ring several times disappears, and illustrates that circuit enters the state of answering, and microprocessor 89C2051 starts voice and broadcasts circuit 206.After ring 13 times, ring unanswered still, circuit will automatically switch to busy condition, and microprocessor 89C2051 will start the dialing of next telephone number.
Voice are broadcast circuit 206 and are made up of SR9K30 special integrated chip, LM386, recording microphone.SR9K30 is the digital recording device, when the user pins record button, the P/R pin is in high level, and SR9K30 enters recording state, the user aim at words that microphone says be transformed into electric signal again the A/D converter in SR9K30 convert deposit data in the storer of SR9K30.When the P/R pin was in low level, the data that it will be stored in the storer in advance converted sound signal to through inner D/A converter, delivered to by SP+, SP-pin and delivered on the telephone line after audio amplifier circuit LM386 amplifies.Recording by the user of sound finished after buying this device voluntarily, and the broadcasting of sound is then finished by microprocessor 89C2051 control.When the P0.1 of microprocessor 89C2051 pin puts 1, photoelectrical coupler TL2 conducting, the P/R pin of SR9K30 is in low level.Enter into the broadcasting state, converting the voice data (data that the sound of recording in advance converts to) that is stored in inside to sound signal by inner D/A converter delivers in the telephone line after note amplifier LM386 amplifies again, make the owner in phone, hear alerting signal, realized the teletransmission of alerting signal.Busy tone appears in subscriber engaged if dial for the first time, then begins to dial second telephone number, and the rest may be inferred till the phone of getting through one of them owner's reservation reaches the warning purpose.
Claims (5)
1, multiple spot team control remote antitheft alarm device, form by at least one alerting signal radio transmitters and wireless receiving teletransmission device, described alerting signal radio transmitters is made up of alerting signal testing circuit, wireless transmission circuit, it is characterized in that: the input in the described alerting signal testing circuit is made up of bridge-type force sensing resistance circuit; Described wireless receiving teletransmission device is made up of wireless receiving circuit, microprocessor, signal tone testing circuit, circuit for answering, dual-tone dialing circuit, voice broadcasting circuit, telephone number storage chip, dialing keypad, described wireless receiving circuit is connected with microprocessor, microprocessor is connected with circuit for answering through relay, and microprocessor is broadcast circuit, telephone number storage chip with dual-tone dialing circuit, signal tone testing circuit, voice, the keypad that dials is connected.
2, multiple spot team control remote antitheft alarm device according to claim 1 is characterized in that the wireless transmission circuit in the alerting signal radio transmitters is formed transmission frequency 144-148MHZ by NE555 oscillatory circuit, TWH630 wireless transmitter module.
3, multiple spot team control remote antitheft alarm device according to claim 1, it is characterized in that the wireless receiving circuit in the wireless receiving teletransmission device is made up of TWH631 wireless receiving module, NE567 audio decoder chip, the signal tone testing circuit is made up of tone decoder NE567 and peripheral resistance thereof, and voice are broadcast circuit and are made up of SR9K30, LM386, recording microphone.
4, multiple spot team control remote antitheft alarm device according to claim 1 is characterized in that the microprocessor in the wireless receiving teletransmission device is that 89C2051, dual-tone dialing circuit are that MT8888, telephone number storage chip are AT2401.
5, multiple spot team control remote antitheft alarm device according to claim 1, it is characterized in that the circuit for answering in the wireless receiving teletransmission device is connected with telephone wire by adjustable resistance, relay normally open contact K1 series connection back, relay coil is connected with microprocessor 89C2051.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420012509 CN2733480Y (en) | 2004-09-15 | 2004-09-15 | Multi-point cluster control remote anti-theft alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420012509 CN2733480Y (en) | 2004-09-15 | 2004-09-15 | Multi-point cluster control remote anti-theft alarm device |
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| Publication Number | Publication Date |
|---|---|
| CN2733480Y true CN2733480Y (en) | 2005-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420012509 Expired - Fee Related CN2733480Y (en) | 2004-09-15 | 2004-09-15 | Multi-point cluster control remote anti-theft alarm device |
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| CN (1) | CN2733480Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347605A (en) * | 2018-11-12 | 2019-02-15 | 北京和利时***工程有限公司 | A kind of coding method, coding/decoding method and device, computer readable storage medium |
-
2004
- 2004-09-15 CN CN 200420012509 patent/CN2733480Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347605A (en) * | 2018-11-12 | 2019-02-15 | 北京和利时***工程有限公司 | A kind of coding method, coding/decoding method and device, computer readable storage medium |
| CN109347605B (en) * | 2018-11-12 | 2021-06-04 | 北京和利时***工程有限公司 | Encoding method, decoding method and device, and computer readable storage medium |
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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 |