CN2327018Y

CN2327018Y - Multifunction compatible alarm

Info

Publication number: CN2327018Y
Application number: CN 97241340
Authority: CN
Inventors: 吴志强
Original assignee: PENGLING GROUP CO Ltd WUHAN CITY
Current assignee: PENGLING GROUP CO Ltd WUHAN CITY
Priority date: 1997-09-30
Filing date: 1997-09-30
Publication date: 1999-06-30
Anticipated expiration: 2007-09-30

Abstract

The utility model belongs to an anti-theft alarm device, mainly solves the problem that the existing alarm has the defects that transmission distance is limited by building structures and the alarm is easy to damage by people, comprising a radio transmitter and a radio receiver. The utility model is characterized in that the anti-theft alarm device is additionally provided with an alarm machine which is composed of a machine casing and an alarm circuit; a receiving circuit in the radio receiver is connected with an alarm circuit in the machine casing through a power line LIN which has electric supply of a same transformer. The utility model adopts alarming modes of radio transmission, radio reception and wire radio transmission; the utility model can be widely used for places which need anti-theft alarms such as strong boxes, archives, coffers, arsenals, etc.

Description

Multi-functional Campatible alarm

The utility model belongs to burglar alarm.

Common type of alarm mainly contains following three kinds: 1, onsite alarming, its shortcoming are that warning device is easily put artificial destruction or chimes of doom has also frightened criminal away in the prompting Security Services; 2, the regional warning, its shortcoming are the infrared rays that is adopted and microwave probe can be prevented and rate of false alarm is higher; 3, radio alarming, its shortcoming are that transmission range is subjected to the restriction of protected object structure and fabric structure and limited.

The purpose of this utility model provides a kind of transmission range and is not subjected to fabric structure restriction and difficult by the multi-functional Campatible alarm of artificial destruction.

The utility model comprises transmitting set and wireless receiver, and transmitting set and wireless receiver are made up of casing and radiating circuit and casing and receiving circuit respectively, wherein radiating circuit is made up of sensor 1, scrambler 2, signal transmitter unit 3 and power supply E1, and receiving circuit is made up of signal receiving unit 4, demoder 5, logical block 6, carrier transmit unit 7 and power supply E2.

The utility model is achieved in that the warning machine of being made up of casing and warning circuit in addition, and the line of electric force LIN of the warning circuit in receiving circuit in the wireless receiver and the warning machine by same transformer-supplied interconnects.

Carrier transmit unit 7 in the above-mentioned receiving circuit is by scrambler 8, carrier transmit module 9 and output coupling transformer 10 are formed, wherein the output terminal of the final power amplifier in the carrier transmit module 9 links to each other with the center tap a of output coupling transformer 10 elementary windings with choking coil L5 by capacitor C14, also be connected to resonant capacitor C15 on the elementary winding, one end of output coupling transformer 10 secondary winding meets line of electric force LIN by capacitor C16 with the other end of secondary winding, one end of the input coupling transformer 11 elementary windings of said warning circuit meets line of electric force LIN with the other end of elementary winding after by capacitor C17, be connected to resonant capacitor C18 on input coupling transformer 11 secondary winding, the center tap b of secondary winding links to each other with the input end of carrier receiving module 12 with capacitor C19 by choking coil L6, and the output terminal of carrier receiving module 12 is connected with power supply E3 with alarm unit 15 with logic controller 14 by demoder 13.

The utility model can be widely used in the place that safety cabinet, archive office, national treasury, arm store etc. need burglar alarm, the mode that adopts wireless transmit and reception, wire radio transmission and report to the police has transmission range and is not subjected to the fabric structure restriction and is difficult for by artificial destruction, advantage easy for installation, disguised strong.

Accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3 are respectively the circuit block diagram of transmitting set, wireless receiver and warning machine.

Accompanying drawing 4, accompanying drawing 5 and accompanying drawing 6 are respectively radiating circuit figure, receiving circuit figure and warning circuit figure.

Further specify embodiment below in conjunction with accompanying drawing:

Transmitting set is made up of casing (not shown) and radiating circuit, wherein casing adopts the ABS plastic manufacturing, sensor 1 in the radiating circuit adopts PL9701-1 sensor (it is on sale that the Wuhan City roc insults the electronics scientific research institution), scrambler 2 adopts the AX5326P scrambler, signal transmitter unit 3 has resistance R 1 (10K), capacitor C1 (8P) and C2 (4P), adjustable condenser C3 (2-7P), triode N1 (9018), loop inductance L1, choking coil L2, power supply E1 is the 6V direct supply, presses shown in the accompanying drawing 4 to connect; Wireless receiver is made up of casing (not shown) and receiving circuit, wherein casing also adopts the ABS plastic manufacturing, signal receiving unit 4 in the receiving circuit has resistance R 2 (100K), R3 (7.5K), R4 (15K), R5 (1K), R6 (10K), R7 (2.2M Ω), R8 (100K), R9 (100K), R10 (100K), R11 (10K), R12 (100K) and R13 (4.7K), capacitor C4 (22P), C5 (10P), C6 (2200P), C7 (3P), C8 (2200P), C9 (1uf), C10 (470P), C11 (1uf), C12 (0.01uf) and adjustable condenser C13 (2-7P), diode D1 and D2, triode N2 (1907) and N3 (9012), face sign indicating number inductance L 3 and L4 (10uh), operational amplifier O1 and O2 are LM2904, demoder 5 adopts the AX5327 demoder, logical block 6 adopts the GAL16V8 programmable array logic, scrambler 8 in the carrier transmit unit 7 adopts the AX5326 scrambler, carrier transmit module 9 adopts PL9702-1 (it is on sale that the Wuhan City roc insults the electronics scientific research institution), capacitor C14 (1uf), C15 (6800P) and C16 (0.47uf), choking coil L5 (10uh), output coupling transformer 10 is made by designing requirement, power supply E2 is+12 volts and+5 volts, presses shown in the accompanying drawing 5 to connect; Input coupling transformer 11 in the warning circuit is made by designing requirement, capacitor C17 (0.47uf), C18 (6800P) and C19 (1uf), choking coil L6 (10uh), carrier receiving module 12 adopts PL9702-2 (it is on sale that the Wuhan City roc insults the electronics scientific research institution), demoder 13 adopts the AX5327 demoder, logic controller 14 adopts the GAL16V8 programmable array logic, alarm unit 15 has resistance R 14 (4.7K), R15 (1.5K), R16 (220K) and R17 (1K), capacitor C20 (2.2uf) and C21 (47uf), inductance L 7 is made by designing requirement, triode N4 (9013) and P1 (9012), piezo Z1 and alarm M1, power supply E3 is+12 volts and+5 volts, presses shown in the accompanying drawing 6 to connect.Promptly become the utility model by the aforementioned manner connection.

During use transmitting set placed by (as safety cabinet) in the protected object; wireless receiver is placed the shelter in other room in the EFFECTIVE RANGE that wireless transmit receives; and be connected (can adopt the plug form to insert in the 220V supply socket) with the 220V power supply; the warning machine is placed in the farther duty room of distance; and with the 220V power supply; (with the same transformer-supplied of wireless receiver) is connected (can by aforementioned manner), and the power supply E1 of open wireless transmitter promptly is the state of alert.Sensor 1 in radiating circuit is triggered, 3 of scrambler 2 and signal transmitter units become specific coded signal into radiowave and send, signal receiving unit 4 in the receiving circuit is received this wireless signal, through demoder 5 recognition and verifications is the wireless signal of native system emission, scrambler 8 in logical block 6 and carrier transmit unit 7 sends a string coded signal again, send the modulator in the carrier transmit module 9 to become the FM signal that carrier frequency is 150KHZ, amplify through two-stage bandpass filter and power amplifier again, send line of electric force LIN by output coupling transformer 10, the FM signal that is transferred to warning circuit through line of electric force LIN is sent two-stage bandpass filter and amplifier in the carrier receiving module 12 by input coupling transformer 11, and be reduced to the coded signal of transmitting terminal through detuner after, send demoder 13 identifications by filter filtering, make alarm unit 15 work by logic controller 14 control triode P1 (switching tube) after confirming as the native system alerting signal, piezo Z1 and alarm M1 send acoustic alarm signal.

The power supply E2 of wireless receiver of the present utility model and warning machine and E3 are powered by the 220V AC network, being connected of carrier signal and line of electric force adopts same lead of power supply to connect, and the transmission of the carrier signal between wireless receiver and the warning machine does not need to lay in addition special circuit.

Claims

1. multi-functional Campatible alarm, comprise transmitting set and wireless receiver, and transmitting set and wireless receiver are made up of casing and radiating circuit and casing and receiving circuit respectively, wherein radiating circuit is by sensor (1), scrambler (2), signal transmitter unit (3) and power supply E1 form, receiving circuit is by signal receiving unit (4), demoder (5), logical block (6), carrier transmit unit (7) and power supply E2 form, it is characterized in that the warning machine formed by casing and warning circuit in addition, and the line of electric force LIN of the warning circuit in receiving circuit in the wireless receiver and the warning machine by same power transformer power supply interconnects.

2, by the described a kind of multi-functional Campatible alarm of claim 1, it is characterized in that carrier transmit unit (7) in the said receiving circuit is by scrambler (8), carrier transmit module (9) and output coupling transformer (10) are formed, wherein the output terminal of the final power amplifier in the carrier transmit module (9) links to each other with the center tap a of the elementary winding of output coupling transformer (10) with choking coil L5 by capacitor C14, also be connected to resonant capacitor C15 on the elementary winding, one end of output coupling transformer (10) secondary winding meets line of electric force LIN with the other end of secondary winding after by capacitor C16, one end of the elementary winding of input coupling transformer (11) of said warning circuit meets line of electric force LIN with the other end of elementary winding after by capacitor C17, be connected to resonant capacitor C18 on input coupling transformer (11) secondary winding, the center tap b of secondary winding links to each other with the input end of carrier receiving module (12) with capacitor C19 by choking coil L6, and the output terminal of carrier receiving module (12) is connected with power supply E3 with alarm unit (15) with logic controller (14) by demoder (13).