CN202331691U - Four-route bridge type wired monitoring device - Google Patents
Four-route bridge type wired monitoring device Download PDFInfo
- Publication number
- CN202331691U CN202331691U CN2011204661490U CN201120466149U CN202331691U CN 202331691 U CN202331691 U CN 202331691U CN 2011204661490 U CN2011204661490 U CN 2011204661490U CN 201120466149 U CN201120466149 U CN 201120466149U CN 202331691 U CN202331691 U CN 202331691U
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- resistance
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- schottky diode
- triode
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- Burglar Alarm Systems (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The utility model relates to a four-route bridge type wired monitoring device. The monitoring device comprises a 6V power supply, a bridge type circuit, a voltage differential signal identification circuit, a photoelectric coupling circuit, a signal amplification circuit and an acousto-optic alarm circuit; the four legs of the bridge type circuit are respectively formed into four routes of monitoring 'probes'; the voltage differential signal identification circuit and the photoelectric coupling circuit comprise four Schottky diodes (D1 to D4) and a transistor type photocoupler (G), and the signal amplification circuit and the acousto-optic alarm circuit comprise a silicon transistor (BG1), a resistor (R6), a light-emitting diode (LED), a resistor (7) and a buzzer (YA). The monitoring device adopts the bridge type circuit balancing principle, the monitoring mode is flexible, and cannot be limited by the size of a monitored area, the characters of articles and other objects, and the monitoring device can solve the problems of false alarm under no substantial danger and missed alarm under dangerous situations, is applicable to the monitoring of households, warehouses and other places, and solves the various defects and problems of various anti-theft alarms on the market, such as expensiveness.
Description
Technical field
The utility model belongs to electronics and technical field of burglary prevention, relates to a kind of four road bridge type wired monitoring devices.
Background technology
Burglar alarm is various in style on the market, and the mode of obtaining alert mainly contains: the one, and the maximum use pyroelectric effect device of market share adds the alarm of the infrared sensor of Fresnel Lenses for the probe manufacturing; The 2nd, be against shock, tamper evident, its anti-noise alarm with vibration, displacement transducer manufacturing of representative with vehicle-mounted; The 3rd, the alarm made from touch, inductive probe, microwave probe on a small quantity.Leading position and positive role that these burglar alarms are taken precautions against in a lot of fields are undoubted, but also there are some problems in actual use really in they.
Described four road bridge type wired monitoring devices of the utility model exist all scarce limits and price than problems such as height and research and design in order to solve and remedy all kinds of on the market burglar alarms.
The utility model content
Goal of the invention
1. circuit design structure is simple and direct, reliable, selects electronic devices and components commonly used to make;
2. monitor mode is versatile and flexible, does not receive the restriction of objects such as guarded region size, article character;
3. the flurried newspaper and the dangerous alert that can solve no substantive dangerous situation are failed to report problem;
4. all monitor channels of supervising device can use simultaneously, also can select as required to use;
5. require complete machine, stand-by operation power consumption low.
Beneficial effect: four road bridge type wired monitoring devices adopt bridge type circuit balancing principle; The circuit of supervising device has easy making and exploitation; Be applicable to the monitoring in places such as family, storehouse, solved and remedied all scarce limit that all kinds of on the market burglar alarms exist and price than problems such as height.
Circuit working principle: use the 6V electric battery, or select for use the alternating current 220V power supply adaptor to obtain the 6V direct-current working volts.
4 monitoring " probe " of supervising device are formed four tunnel monitoring " probe " respectively by 4 arms respectively; Four tunnel monitoring " probe " are made up of resistance R 1 and K switch 1, resistance R 2 and K switch 2, resistance R 3 and K switch 3, resistance R 4 and K switch 4, select to open 1 tunnel~4 road monitor channel as required.When the bridge type circuit was in equilibrium state, voltage difference was 0V between a, the b two ends, and triode type photoelectrical coupler G and silicon triode BG1 are in cut-off state, and hummer YA is sounding not.Get into monitored space and let any No. 1 microswitch in the middle of 4 monitoring probes that (K1~K4) breaks off or when bumping disconnected cloth defence line or short circuit cloth defence line as the people; The equal out of trim immediately of bridge type circuit so; A, b two ends will produce the voltage difference of 2~3V; This voltage lights the inner light emitting diode of triode photoelectrical coupler G behind full-bridge circuit rectification D1~D4, and the inner photosensitive triode of triode photoelectrical coupler G receives conducting behind the light; The conducting electric current of following photosensitive triode is delivered to silicon triode BG1 through resistance R 5 and is amplified; Silicon triode BG1 makes hummer YA get electric sounding a buzzer by by becoming conducting, and red light emitting diodes LED gets electric being lighted.
Technical characterictic: four road bridge type wired monitoring devices, by 6V power supply, bridge type circuit, pressure difference signal identification circuit and photoelectricity coupled circuit, signal amplification circuit and acousto-optic warning circuit are formed, and its characteristic comprises:
The bridge type circuit: form four tunnel monitoring " probe " respectively by 4 arms, four tunnel monitoring " probe " are made up of resistance R 1 and K switch 1, resistance R 2 and K switch 2, resistance R 3 and K switch 3, resistance R 4 and K switch 4; The a end of one termination full bridge rectifier of resistance R 1, the other end of resistance R 1 links to each other with an end of K switch 1, the other end connection circuit ground GND of K switch 1; The a end of one termination full bridge rectifier of K switch 2, the other end of K switch 2 links to each other with an end of resistance R 2, the anodal VCC of another termination 6V power supply of resistance R 2; The b end of one termination full bridge rectifier of resistance R 3, the other end of resistance R 3 links to each other with an end of K switch 3, the other end connection circuit ground GND of K switch 3; The b end of one termination full bridge rectifier of K switch 4, the other end of K switch 4 links to each other with an end of resistance R 4, the anodal VCC of resistance R 4 another termination 6V power supplies;
Pressure difference signal identification circuit and photoelectricity coupled circuit: form by 4 schottky diode D1~D4 and triode type photoelectrical coupler G; The positive pole of the negative pole of schottky diode D1 and schottky diode D2 is connected to a end; The positive pole of the negative pole of schottky diode D3 and schottky diode D4 is connected to the b end; The positive pole of schottky diode D1 and 2 pin that meet triode type photoelectrical coupler G after the positive pole of schottky diode D2 links to each other; The negative pole of schottky diode D2 and 1 pin that meets triode type photoelectrical coupler G after the negative pole of schottky diode D4 links to each other; 5 pin of triode type photoelectrical coupler G meet the anodal VCC of 6V power supply, and 4 pin of triode type photoelectrical coupler G link to each other with an end of resistance R 5, the base stage of another termination silicon triode BG1 of resistance R 5;
Signal amplification circuit and acousto-optic warning circuit: form by silicon triode BG1, resistance R 6, LED and resistance R 7, hummer YA; The end of the base stage connecting resistance R6 of silicon triode BG1; The other end connection circuit ground GND of resistance R 6; The collector of silicon triode BG1 meets the anodal VCC of 6V power supply; The end of the emitter connecting resistance R7 of silicon triode BG1 and the positive pole of hummer YA, the positive pole of the other end sending and receiving optical diode LED of resistance R 7, the negative pole connection circuit ground GND of the negative pole of LED and utmost point hummer YA.
Description of drawings
Accompanying drawing 1 is the circuit working schematic diagram of four road bridge type wired monitoring devices.
Embodiment
The utility model correlation technique content is done further to describe with embodiment below in conjunction with Figure of description 1.
The selection of components and parts and technical parameter:
Full-bridge rectification D1~D4 selects the very little schottky diode of pressure drop voltage for use, to increase substantially the sensitivity of voltage difference between a in the testing circuit, the b two ends.If when the power supply voltage of supervising device circuit was brought up to 8~10V, the diode D1~D4 in the full-bridge rectification can select switching diode 1N4148 for use.
Components and parts title and important technological parameters
The components and parts numbering | The components and parts title | Major parameter | Quantity | Remarks |
BG1 | 2SC9013 | Plastic packaging β >=100 | 1 | |
G | The triode type photoelectrical coupler | 4N25 or 4N26 (5 pin) | 1 | Dual-in-line |
D1~D4 | Schottky diode | ≥20V | 4 | Or 1N60 |
LED | Red light emitting diodes | Φ5、LED | 1 | |
R1~R4 | Metalfilmresistor | 1/16W?3.6KΩ | 4 | Or Chip-R |
R5 | Metalfilmresistor | 1/8W?4.7KΩ | 1 | |
R6 | Metalfilmresistor | 1/8W?8.2KΩ | 1 | |
R7 | Metalfilmresistor | 1/8W?470Ω | 1 | |
K1~K4 | Microswitch or tongue tube etc. | Needs according to monitored object | 4 | As required |
YA | Hummer | There is circuit inside, 3~5V | 1 | Solderable |
Circuit debugging and installation
The key point of debugging is the balance of adjustment bridge type circuit, when power supply voltage is 6V, accurately adjusts the resistance of any 1 resistance among R1~R4, a point, b point voltage-to-ground in the circuit is respectively: Va=Vb=3.0V.During respectively with two terminal shortcircuits of R1, R2, R3, R4 or open circuit, emitter voltage-to-ground >=4.0V of silicon triode BG1, at this moment hummer YA gets electric ringing, red light emitting diodes LED also electric being lighted.The adjustment method of other monitor channels is the same.
Resistance in the monitoring probe will be paid special attention to hidden, the Chip-R that preferably uses with good conditionsi.
Uniting and adjustment: be that supervising device was artificially simulated various alerts when connecing different supply voltages, each monitor channel working condition of complete machine is carried out combined debugging after supervising device had been patched cloth defence line and " monitoring probe ".
Locate monitoring if be used for door and window etc., can select open type microswitch or magnetic switch, mini button for use, it is connected when door and window is closed, disconnection got final product when door and window was pried open; If be used for the monitoring of garden or warehouse, then available fine enamelled wire etc. is as warning line, and when the people bumps disconnected warning line (cloth defence line), control circuit will drive hummer work.The cloth defence line that the selection wire footpath is thicker, the monitoring distance can increase considerably.
Technical parameter
1. WV: 6.0~8.0V (AC power source adapter);
2. power supply: 4 joint 7# alkaline batteries;
3. standby current: when power supply is 6V, quiescent current 4.0~5.0mA (39mA during alarm);
4. monitor channel: 4 passages, can select to open monitor channel as required;
5. alarm mode: sound, light (the alarm mode can be expanded);
6. monitoring distance: >=500m (the cloth defence line that the selection wire footpath is thicker, the monitoring distance can increase considerably).
Claims (1)
1. bridge type wired monitoring device, by 6V power supply, bridge type circuit, pressure difference signal identification circuit and photoelectricity coupled circuit, signal amplification circuit and acousto-optic warning circuit are formed, and its characteristic comprises:
The bridge type circuit is formed four tunnel monitoring " probe " respectively by 4 arms, and four tunnel monitoring " probe " are made up of resistance R 1 and K switch 1, resistance R 2 and K switch 2, resistance R 3 and K switch 3, resistance R 4 and K switch 4; The a end of one termination full bridge rectifier of resistance R 1, the other end of resistance R 1 links to each other with an end of K switch 1, the other end connection circuit ground GND of K switch 1; The a end of one termination full bridge rectifier of K switch 2, the other end of K switch 2 links to each other with an end of resistance R 2, the anodal VCC of another termination 6V power supply of resistance R 2; The b end of one termination full bridge rectifier of resistance R 3, the other end of resistance R 3 links to each other with an end of K switch 3, the other end connection circuit ground GND of K switch 3; The b end of one termination full bridge rectifier of K switch 4, the other end of K switch 4 links to each other with an end of resistance R 4, the anodal VCC of resistance R 4 another termination 6V power supplies;
Pressure difference signal identification circuit and photoelectricity coupled circuit are made up of 4 schottky diode D1~D4 and triode type photoelectrical coupler G; The positive pole of the negative pole of schottky diode D1 and schottky diode D2 is connected to a end; The positive pole of the negative pole of schottky diode D3 and schottky diode D4 is connected to the b end; The positive pole of schottky diode D1 and 2 pin that meet triode type photoelectrical coupler G after the positive pole of schottky diode D2 links to each other; The negative pole of schottky diode D2 and 1 pin that meets triode type photoelectrical coupler G after the negative pole of schottky diode D4 links to each other; 5 pin of triode type photoelectrical coupler G meet the anodal VCC of 6V power supply, and 4 pin of triode type photoelectrical coupler G link to each other with an end of resistance R 5, the base stage of another termination silicon triode BG1 of resistance R 5;
Signal amplification circuit and acousto-optic warning circuit are made up of silicon triode BG1, resistance R 6, LED and resistance R 7, hummer YA; The end of the base stage connecting resistance R6 of silicon triode BG1; The other end connection circuit ground GND of resistance R 6; The collector of silicon triode BG1 meets the anodal VCC of 6V power supply; The end of the emitter connecting resistance R7 of silicon triode BG1 and the positive pole of hummer YA, the positive pole of the other end sending and receiving optical diode LED of resistance R 7, the negative pole connection circuit ground GND of the negative pole of LED and utmost point hummer YA.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011204661490U CN202331691U (en) | 2011-11-22 | 2011-11-22 | Four-route bridge type wired monitoring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2011204661490U CN202331691U (en) | 2011-11-22 | 2011-11-22 | Four-route bridge type wired monitoring device |
Publications (1)
Publication Number | Publication Date |
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CN202331691U true CN202331691U (en) | 2012-07-11 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2011204661490U Expired - Fee Related CN202331691U (en) | 2011-11-22 | 2011-11-22 | Four-route bridge type wired monitoring device |
Country Status (1)
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CN (1) | CN202331691U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104766423A (en) * | 2014-01-08 | 2015-07-08 | 陈奎发 | Vibration detector |
CN104933837A (en) * | 2014-03-21 | 2015-09-23 | 鸿富锦精密工业(武汉)有限公司 | Radiator alarm device |
-
2011
- 2011-11-22 CN CN2011204661490U patent/CN202331691U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104766423A (en) * | 2014-01-08 | 2015-07-08 | 陈奎发 | Vibration detector |
CN104933837A (en) * | 2014-03-21 | 2015-09-23 | 鸿富锦精密工业(武汉)有限公司 | Radiator alarm device |
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Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20121122 |