CN2692755Y - Power line carrier anti-theft alarm - Google Patents
Power line carrier anti-theft alarm Download PDFInfo
- Publication number
- CN2692755Y CN2692755Y CN 03271224 CN03271224U CN2692755Y CN 2692755 Y CN2692755 Y CN 2692755Y CN 03271224 CN03271224 CN 03271224 CN 03271224 U CN03271224 U CN 03271224U CN 2692755 Y CN2692755 Y CN 2692755Y
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- Prior art keywords
- power line
- line carrier
- carrier
- alarm
- burglar alarm
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- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to a power line carrier anti-theft alarm, comprising a transmitting apparatus of the power line carrier anti-theft alarm and a receiving apparatus of the power line carrier anti-theft alarm. The transmitting apparatus of the power line carrier anti-theft alarm and the receiving apparatus of the power line carrier anti-theft alarm consist of a sensor detector, a carrier coding transmitting controller, a carrier decoding receiver, an audible and visual alarm, a control time delay circuit, and an auxiliary circuit. The sensor detector which is basically identical with the sensor detector in the prior art adopts the modem transmission of the power line carrier; with the technique of decoding reception, the signal transmission of the admonish defense area and the alarm main machine are connected with the network to be scanned all the time; when the sensor detector is triggered, namely when the low electrical level is output, a transistor VT2 is stopped; the carrier transmission is stopped; the modulating signal of the power line carrier is interrupted; the receiving cannot receive the carrier signal, and thus the time-delay audible and visual alarm control circuit works to send out the audible and visual alarm; the alarm stops after 20 seconds.
Description
Technical field: the utility model relates to burglar alarm, relates in particular to the power line carrier burglar alarm.
Background technology: the burglar alarm of prior art, generally all form by intrusion detection and warning two large divisions, this two large divisions mainly is made up of alarm detector, transmitting device, communicator, alarm control unit and warning acousto-optic delay circuit again, alerting signal transmitting device wherein can be divided into two kinds again, a kind of is the warning device of wire transmission, and another kind is the warning device of wireless transmission.The vandal-proof poor performance of these warning device ubiquities.The warning device of making power supply with battery also can be permanent because of the time, and the energy content of battery reduces, and finally causes alerting signal to interrupt.Besides buildings block, absorption and shielding action, also can make wireless alerting signal can not transmission too far away.
The utility model content: the purpose of this utility model is, overcomes the deficiencies in the prior art part, and a kind of power line carrier burglar alarm is provided, and is to utilize ZAP to carry out reliable signal transmission on electrical network.The said power line carrier burglar alarm of the utility model includes power line carrier burglar alarm emitter and power line carrier burglar alarm receiving trap two large divisions forms, and said power line carrier burglar alarm emitter and power line carrier burglar alarm receiving trap are made up of sensor detector, carrier wave coding mission controller, carrier wave decoding receiver, audible-visual annunciator, control delay circuit and auxiliary circuit.The sensor detector of said sensor detector and prior art is basic identical.Because the continuous access of load and cutting out on the power network, and the various interference noises in the power lead transmission channel make the characteristics of signals that shows have very strong time variation.So anti-interference mode of frequency regulation is preferably adopted in signal modulation of the present utility model, and does not adopt the amplitude modulation mode.The carrier transmit circuit of sensor measuring control is arranged in the warning defence area, and the shank of said carrier transmit circuit is an ic chip 2.The required carrier frequency oscillation signal of circuit is produced by ic chip 2, and ic chip 2 is one six rp-drives, and two phase inverters are wherein formed oscillator.By regulating the height that adjustable potentiometer RP changes the carrier oscillation frequency, said ic chip 3 is eight ternary coding circuits, is used to distinguish different users.Coding output terminal 17 pin by ic chip 3, the output encoder serial pulse signal, through resistance R 2, resistance R 3 dividing potential drops, add to the base stage of triode VT1, said triode VT1 is a modulator tube, after triode VT1 collector and carrier signal hybrid modulation, after being amplified by ic chip 2 amplifiers again, obtain rf modulated signal, by I.F.T. T1 isolation coupling capacitor C
4, C
5Be input in the electric power networks, the primary coil of I.F.T. T1 and capacitor C 2 constitute frequency selection network.The used operating voltage of carrier frequency emission by the 220V alternating current through insurance FU-1, resistance R 1, capacitor C 1 step-down, diode D
1-D
4Bridge rectifier provides working power for emission coefficient after 1 voltage stabilizing of three end ic chips.Break-make so that the pulse of triode VT2 control ic chip 3 is launched that is to say that the base stage in three electrodes of said triode VT2 is connecting the control interface 3 of sensing circuit input, grounded emitter, and collector connects the 14th pin of ic chip 3.Be the duty that triode VT2 is controlling the carrier transmit circuit, be in emission state during operate as normal all the time, i.e. during triode VT2 conducting, ic chip 3 the 14th pin becomes low level by high level, allows signaling, the carrier transmit of promptly encoding; Triode VT2 by the time, carrier wave stop the emission.The base stage of triode VT2 is the control interface of various sensing circuit inputs.
The carrier (boc) modulated signals of carrier transmit output is transferred to receiving end through power line network, at first through the isolation coupling capacitor C
6, C
7After the coupling, after I.F.T. T2 and capacitor C 3 frequency-selectings, after amplifying by ic chip 5 again, send into 14 pin of IC6 and decode.When encoding and decoding are provided with the address when in full accord, ic chip 6 is decoded successfully, the data output end 13 pin output high level of ic chip 6, and control acousto-optic delayed alarm circuit is not worked.At this moment, sensor transmitting terminal and receiving end keep the good signal transmission, are in the alert state for the treatment of.The data output end of said ic chip 6 is the ports that match with the carrier transmit data input pin, and ic chip 6 is decoded successfully, the indication of 17 pin output high level, luminotron D
5Chang Liang.Carrier frequency receive used operating voltage by the 220V alternating current through insurance FU-2, transformer T3 transformation, diode D
6, D
7, D
8, D
9Bridge rectifier provides working power for receiving system after 4 voltage stabilizings of three end ic chips.
The power line carrier modulate emission adopts low voltage power supply, and working current is in emission state usually about 30mA, and carrier wave receives main frame and is in accepting state at ordinary times.At this moment, luminotron Chang Liang shows that operating circuit is normal, when luminotron is glittering, shows the interruption of line of electric force coding carrier signal, and at this moment alarm is rung.I.F.T. T1 and I.F.T. T2 are adjustable middle weeks in the circuit.Finely tune its magnetic cap and can change the resonance frequency of the frequency selection network that itself and capacitor C 2, capacitor C 3 constitute, frequency of operation is at 200KHz, and its effective propagation path is about 500 meters, and stronger practicality is arranged.
Adopt the power line carrier modulate emission, the decoding reception technique scans the signal transmission networking all the time of warning defence area and alarm host machine, when sensor detector is triggered, promptly during output low level, triode VT2 ends, carrier transmit stops, and the power line carrier modulation signal interrupts, and receives main frame because of can not receive carrier signal, the work of time-delay sound and light alarm control circuit, send sound and light alarm immediately, report to the police after 20 seconds, stop automatically.If there is the people still movable in the security area, alarm host machine can continuous alarm.Like this, no matter use any sensor detector, even the detector outage, artificial destruction or detect the someone through detector and swarm in the defence area all can make alarm equipment alarm.Said detector, can be infrared eye, constitute power line carrier burglar alarm described in the utility model, utilize people's body heat to discharge electro-induction and survey, produce alerting signal when obtaining human body and entering in the security area, alerting signal is through the transmission of 220V power lead and implement to report to the police.Need not other laying signal wire, also avoided owing to building hinders shielding action and the wireless interference that produces, thereby, report to the police accurately and reliably.In China, substantially all be to adopt the alternating current 220V single phase power supply, as long as the place of supply line is arranged, can utilize line of electric force to make carrier wave and transmit alerting signal, have not only that antijamming capability is strong, long transmission distance, the advantage that not influenced by the obstruct of barriers such as room and landform, and good confidentiality, reliability height, control interface is simple, and installation and use are all very convenient.Can be widely used in all places of being furnished with the 220V power supply and need setting up defences and report to the police such as electric power facility, building, basement, storeroom, shop, storehouse, accounts office, office, garden.
Description of drawings: accompanying drawing 1 is the contour structures synoptic diagram of power line carrier burglar alarm described in the utility model; Accompanying drawing 2 is sensor measuring carrier transmit partial circuit figure; Accompanying drawing 3 is carrier wave receiving unit circuit diagrams.
The control interface 4-time-delay sound and light alarm control circuit of 1-power line carrier burglar alarm emitter 2-power line carrier burglar alarm receiving trap 3-sensing circuit input
Embodiment: referring now to accompanying drawing 1 and accompanying drawing 2, in conjunction with the embodiments, power line carrier burglar alarm described in the utility model is described in detail as follows: the said power line carrier burglar alarm of the utility model includes power line carrier burglar alarm emitter 1 and power line carrier burglar alarm receiving trap 2 two large divisions form, and said power line carrier burglar alarm emitter 1 and power line carrier burglar alarm receiving trap 2 are by sensor detector, carrier wave coding mission controller, carrier wave decoding receiver, audible-visual annunciator, control delay circuit and auxiliary circuit are formed.The sensor detector of said sensor detector and prior art is basic identical.Because the continuous access of load and cutting out on the power network, and the various interference noises in the power lead transmission channel make the characteristics of signals that shows have very strong time variation.So anti-interference mode of frequency regulation is preferably adopted in signal modulation of the present utility model, and does not adopt the amplitude modulation mode.The carrier transmit circuit of sensor measuring control is arranged in the warning defence area, and the shank of said carrier transmit circuit is an ic chip 2.The required carrier frequency oscillation signal of circuit is produced by ic chip 2, and ic chip 2 is one six rp-drives, and two phase inverters are wherein formed oscillator.By regulating the height that adjustable potentiometer RP changes the carrier oscillation frequency, said ic chip 3 is eight ternary coding circuits, is used to distinguish different users.Coding output terminal 17 pin by ic chip 3, the output encoder serial pulse signal, through resistance R 2, resistance R 3 dividing potential drops, add to the base stage of triode VT1, said triode VT1 is a modulator tube, after triode VT1 collector and carrier signal hybrid modulation, after being amplified by ic chip 2 amplifiers again, obtain rf modulated signal, by I.F.T. T1 isolation coupling capacitor C
4, C
5Be input in the electric power networks, the primary coil of I.F.T. T1 and capacitor C 2 constitute frequency selection network.The used operating voltage of carrier frequency emission by the 220V alternating current through insurance FU-1, resistance R 1, capacitor C 1 step-down, diode D
1-D
4Bridge rectifier provides working power for emission coefficient after 1 voltage stabilizing of three end ic chips.With the break-make that the pulse of triode VT2 control ic chip 3 is launched, the base stage in three electrodes of said triode VT2 is connecting the control interface 3 of sensing circuit input, grounded emitter, and collector connects the 14th pin of ic chip 3.Be the duty that triode VT2 is controlling the carrier transmit circuit, be in emission state during operate as normal all the time, i.e. during triode VT2 conducting, ic chip 3 the 14th pin becomes low level by high level, allows signaling, the carrier transmit of promptly encoding; Triode VT2 by the time, carrier wave stop the emission.The base stage of triode VT2 is the control interface 3 of various sensing circuit inputs, the control interface 3 of said sensing circuit input is connected with the base stage of triode VT2, and during operate as normal, VT2 sends high level to triode, when sensing circuit was triggered, VT2 sent low level to triode.
Referring now to accompanying drawing 3, in conjunction with the embodiments, the receiving trap of power line carrier burglar alarm described in the utility model is described in detail as follows: the carrier (boc) modulated signals of carrier transmit output is transferred to receiving end through power line network, at first through the isolation coupling capacitor C
6, C
7After the coupling, after I.F.T. T2 and capacitor C 3 frequency-selectings, after amplifying by ic chip 5 again, send into 14 pin of IC6 and decode.When encoding and decoding are provided with the address when in full accord, ic chip 6 is decoded successfully, the data output end 13 pin output high level of ic chip 6, and control acousto-optic delayed alarm circuit 4 is not worked.The indication of 17 pin output high level, luminotron D
5Chang Liang.At this moment, sensor transmitting terminal and receiving end keep the good signal transmission, are in the alert state for the treatment of.Opposite, output low level when sensing circuit is triggered, the 13 pin while of ic chip 6 is output low level also, and control acousto-optic delayed alarm circuit 4 is reported to the police, the indication of 17 pin output low levels, luminotron D
5Extinguish.Carrier frequency receive used operating voltage by the 220V alternating current through insurance FU-2, transformer T3 transformation, diode D
6, D
7, D
8, D
9Bridge rectifier provides working power for receiving system after 4 voltage stabilizings of three end ic chips.
The power line carrier modulate emission adopts low voltage power supply, and working current is in emission state usually about 30mA, and carrier wave receives main frame and is in accepting state at ordinary times.At this moment, luminotron Chang Liang shows that operating circuit is normal, when luminotron extinguishes, shows the interruption of line of electric force coding carrier signal, and at this moment alarm is rung.I.F.T. T1 and I.F.T. T2 are adjustable middle weeks in the circuit.Finely tune its magnetic cap and can change the resonance frequency of the frequency selection network that itself and capacitor C 2, capacitor C 3 constitute, frequency of operation is at 200KHz, and its effective propagation path is about 500 meters, and stronger practicality is arranged.
Adopt the power line carrier modulate emission, the decoding reception technique scans the signal transmission networking all the time of warning defence area and alarm host machine, when sensor detector is triggered, promptly during output low level, triode VT2 ends, carrier transmit stops, and the power line carrier modulation signal interrupts, and receiving trap is because of can not receive carrier signal, the work of time-delay sound and light alarm control circuit, send sound and light alarm immediately, report to the police after 20 seconds, stop automatically.If there is the people still movable in the security area, alarm host machine can continuous alarm.Like this, no matter use any sensor detector, even the detector outage, artificial destruction or detect the someone through detector and swarm in the defence area all can make alarm equipment alarm.Said detector, can be infrared eye, constitute power line carrier burglar alarm described in the utility model, utilize people's body heat to discharge electro-induction and survey, produce alerting signal when obtaining human body and entering in the security area, alerting signal is through the transmission of 220V power lead and implement to report to the police.Need not other laying signal wire, also avoided owing to building hinders shielding action and the wireless interference that produces, thereby, report to the police accurately and reliably.In China, substantially all be to adopt the alternating current 220V single phase power supply, as long as the place of supply line is arranged, can utilize line of electric force to make carrier wave and transmit alerting signal, have not only that antijamming capability is strong, long transmission distance, the advantage that not influenced by the obstruct of barriers such as room and landform, and good confidentiality, reliability height, control interface is simple, and installation and use are all very convenient.Can be widely used in all places of being furnished with the 220V power supply and need setting up defences and report to the police such as electric power facility, building, basement, storeroom, shop, storehouse, accounts office, office, garden.
Claims (3)
1, the power line carrier burglar alarm, including power line carrier burglar alarm emitter (1) and power line carrier burglar alarm receiving trap (2) two large divisions forms, said power line carrier burglar alarm emitter (1) and power line carrier burglar alarm receiving trap (2) are by sensor detector, carrier wave coding mission controller, carrier wave decoding receiver, audible-visual annunciator, control delay circuit and auxiliary circuit are formed, the carrier transmit circuit of said sensor detector is arranged in the warning defence area, it is characterized in that, base stage in three electrodes of said triode VT2 connects the control interface (3) of sensing circuit input, grounded emitter, collector connects the 14th pin of ic chip 3.
2, power line carrier burglar alarm according to claim 1, it is characterized in that, the control interface (3) of said sensing circuit input is connected with the base stage of triode VT2, during operate as normal, VT2 sends high level to triode, when sensing circuit was triggered, VT2 sent low level to triode.
3, power line carrier burglar alarm according to claim 1, it is characterized in that when encoding and decoding are provided with the address when in full accord, ic chip 6 is decoded successfully, the data output end 13 pin output high level of ic chip 6, control acousto-optic delayed alarm circuit (4) is not worked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03271224 CN2692755Y (en) | 2003-07-28 | 2003-07-28 | Power line carrier anti-theft alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03271224 CN2692755Y (en) | 2003-07-28 | 2003-07-28 | Power line carrier anti-theft alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2692755Y true CN2692755Y (en) | 2005-04-13 |
Family
ID=34755600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03271224 Expired - Fee Related CN2692755Y (en) | 2003-07-28 | 2003-07-28 | Power line carrier anti-theft alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2692755Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470939B (en) * | 2007-12-28 | 2011-09-14 | 中国移动通信集团公司 | Method, system and apparatus for alarming cable theft |
-
2003
- 2003-07-28 CN CN 03271224 patent/CN2692755Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470939B (en) * | 2007-12-28 | 2011-09-14 | 中国移动通信集团公司 | Method, system and apparatus for alarming cable theft |
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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 |