CN2443447Y - Electronic alarm - Google Patents

Abstract

The utility model provides an electronic alarm. The utility model mainly comprises an alarming information detecting and transmitting circuit and a signal receiving and alarm executing circuit, wherein, the alarming information detecting and transmitting circuit comprises a testing circuit composed of a sensing element; the testing circuit controls a drive circuit to work; signals of the drive circuit are sent to a transmitting circuit for transmission; the signal receiving and alarm executing circuit comprises a signal receiving circuit, a time base circuit, a calculating circuit and a distribution circuit; the signal receiving circuit controls the start of the time base circuit and the calculating circuit; the output of the calculating circuit is respectively sent to an off-hook control circuit, a dialing control circuit and a speech output control circuit through the distribution circuit.

Description

Electronic alarm

The utility model relates to a kind of electronic alarm, particularly utilizes phone to transmit the alarm of alerting signal.

Multiple telephone alarm is arranged in the existing technology, all contribute to some extent in this field as patent 96233004 " telephone wire remote control alarming unit ", 96106259 " wireless-to-wired telephone alarm systems ".But this class technology all adopts CPU and software to cooperate at present, and circuit is complicated, and the price height is unfavorable for promoting.

The purpose of this utility model is to realize the purpose of wireless remote control telephone call with the simplest circuit and device.

The technical solution of the utility model is: comprise that mainly alert detection and radiating circuit and signal receive and the warning executive circuit, alert detects with radiating circuit and comprises the testing circuit of being made up of sensitive element, the work of its control Driver Circuit, the signal of driving circuit is delivered to the radiating circuit emission, its signal receives with the warning executive circuit and comprises signal receiving circuit, time base circuit, counting circuit and distributor circuit, the startup of signal receiving circuit control time base circuit and counting circuit, the output of counting circuit is delivered to the off-hook control circuit respectively by distributor circuit, dialing control circuit and voice output control circuit.

Above-mentioned electronic alarm, its counting circuit is made up of counter, distributor circuit is made up of gate circuit, the off-hook control circuit drives relay K 1 by transistor circuit, the contact K1-1 of K1 and the switch hook of telephone set also connect, the dialing control circuit is by photoelectrical coupler M1, M2, memory button J1, the J2 of M3...... control telephone set, the conducting of J3......, and the voice output control circuit drives relay K 2 by transistor circuit, the output of the contact K2-2 control voice output module of K2.

The utility model has the advantages that circuit is simple, action is accurate, cheap.

Below accompanying drawing is described: Fig. 1 is that logic diagram, Fig. 2 of detection of the present utility model and radiating circuit is the logic diagram of signal reception and warning executive circuit, Fig. 3 detects and the radiating circuit circuit theory diagrams, and Fig. 4 is the circuit theory diagrams of signal reception and warning executive circuit.

D1 is photosensitive or the infrared induction element among Fig. 2, S1, S2 are that displacement or shock detection element such as mercury cut-off, M are touch sensitive elements, above-mentioned sensitive element and R4, T1, C1, R5, R6, C2 form the alert testing circuit, form driving circuit by time base circuit and transistor T 3, R7, K3, C3, C4, radiating circuit is finished by the emission special module.Transistor T 1, Yang Sheng device F, R2, R3, DZ, R1 and siren special chip are formed a kind of audible alarm way of output.Fig. 4 is that signal receives and warning executive circuit circuit theory diagrams.The RCM-1B signal receives special chip and YWH8778 switch integrated chip and the attached element composition signal receiving circuit that helps among the figure, IC1 and the attached resistance capacitance that helps are time base circuit, and IC2, IC3, IC8 form gate circuits such as counting circuit, IC4-I IC4-6, IC5-1～IC5-4, IC6-1～IC6-4, IC7-1～IC7-3 and form divider.Transistor VT2, relay K 1 and the attached element that helps are formed the off-hook control circuit, and photoelectrical coupler M1, M2, M3 and the attached element that helps are formed the dialing control circuit.Transistor VT1, relay K 2 and the attached element that helps are formed the voice output control circuit.

Further narrate the embodiment of the present utility model and the course of work below in conjunction with accompanying drawing: when alert, flame or human body sensing D1 conducting or M are touched, or because of transmitter by displacement, when vibration, S1 and S2 mercury cut-off closure, this moment, 555 time base circuits, 2 pin were low level, 3 pin are high level, and trigger.When the T3 base stage was high level, relay K got electric, and adhesive, the K-1 adhesive of often making war, and alarm sound circuit (9561) work, this moment, loudspeaker sent strong siren tweeting sound.Owing to normally opened contact K2-1 adhesive, transmitter module RCM-1A gets electric simultaneously, and the feelings signal is stolen in emission.After the basic at that time circuit delay time arrived, 2 pin were high level, and 3 pin are low level, and the T3 current collection is high level very, the relay K dead electricity, and police whistle sound quits work simultaneously with transmitting.

When wireless remote control receives after emission steals the feelings signal, the 2 pin output of RCM-1B is high level by the low level upset, and TWH8778 switch integrated circuit 1 pin and 2 pin, 3 pin are communicated with, integrated circuit (IC) 1～IC8 all electric work.Warning circuit is at 3 minutes duration of works, the exportable high level of 12 pin of IC4, like this, even time base circuit time-delay finishes, that is to say, after stopping emission and stealing the feelings signal, the 2 pin output of RCM-1B is low level by the high level upset, and switch integrated circuit TWH8778 still can normally.Multivibrator is made of IC1NE555 and peripheral cell, produces the square-wave signal of about 1Hz, and this signal is as the clock signal of counter IC2, IC3, so IC2, IC3 start working.When they worked 2 seconds S, the Q2 of IC2～Q4 output terminal was 000, the Q1 of IC3, Q2 output terminal are 00, after relevant gate circuit is handled, and 11 pin of IC5 output high level, triode T2 ends, and relay K 1 is not worked.Counter has at least one to be high level at 2～60 seconds duration of works among output terminal Q2～Q4 of IC2 and the output terminal Q1 of IC3 and the Q2, after relevant gate circuit was handled, 11 pin of IC5 were output as low level, triode T2 conducting, and relay K 1 gets electric work.Its normally opened contact adhesive, first contact K1-1 connects the switch hook two ends, and telephone set is equivalent to simulate off-hook work.Counter works is to 8s, and Q4～Q1 of IC2 is output as 0111, and the output terminal of IC3 is 0000, after relevant gate circuit is handled, and 11 pin of IC6 output high level, triode T1 conducting, relay K 2 gets electric work.One of them normally opened contact K2-1 adhesive makes the K2 self-insurance, after another normally opened contact K2-2 adhesive, PL and the L two pins of voice recording-reproducing assembly IS-D4200 is connected the language alarm information that this language recording playback module is reset and prerecorded continuously immediately.This language message is seen off from the SP end of language recording playback module.The transmission capable of circulation of this language message is up to alarm work to 60 second end.Because this moment, the output terminal of IC2 was 0000, output terminal Q2, the Q1 of IC3 is 00, after relevant gate circuit was handled, 11 pin of IC5 were output as high level, and triode T2 ends, relay K 1 dead electricity, normally opened contact K1-1 disconnects, thereby relay K 2 dead electricity disconnect normally opened contact K2-2, language stops to report to the police, the end-of-job of so far reporting to the police for the first time.

From warning work to 60 second, will carry out (60 seconds～120 seconds) and the dialing alarm work of (120 seconds～180 seconds) for the third time for the second time automatically, its working condition is just the same with the working condition of reporting to the police the first time.But the second time and memory 2 keys and memory 3 keys of reporting to the police for the third time and connecting telephone set respectively, output terminal Y1, the Y2 by code translator IC8 controls the telephone number difference of promptly at every turn dialing respectively.After warning finishes for the third time, output terminal Q3, the Q4 of IC3 is high level 11, after IC8 decoding, output terminal Y3 is a high level, thereby make the 12 pin output low levels of IC4,5 pin of switch integrated circuit TWH8778 disconnect switch inside after losing voltage, and warning circuit quits work and is in waiting state.

Switch S is a main switching control, just closes when the needs alarm, and alert detects can adopt various sensitive element, and its principle is the same.

Recording of language message: with switch S 2 (the dpdt double-pole double-throw (DPDT) switch of the normal and alarm condition in telephone set place, when being allocated to " 2 " position, telephone set is in the state of normally calling) be allocated to " 1 " position, cleaner handgrip picks up the telephone, pin record button SB, can record with phone transmitter, unclamp SB after, End of Tape, the light emitting diode VD4 that indicates that is used to simultaneously record extinguishes.

Alert of the present utility model detect can be installed in the valuables preservation case with radiating circuit, key positions such as door and window and drawer.

Claims (2)

1, a kind of electronic alarm, comprise that mainly alert detection and radiating circuit and signal receive and the warning executive circuit, alert detects with radiating circuit and comprises the signal deteching circuit that sensitive element is formed, the work of its control Driver Circuit, the signal of driving circuit is delivered to the radiating circuit emission, it is characterized in that signal receives and the warning executive circuit comprises signal receiving circuit, time base circuit, counting circuit and distributor circuit, the startup of signal receiving circuit control time base circuit and counting circuit, the output of counting circuit is delivered to the off-hook control circuit respectively by distributor circuit, dialing control circuit and voice output control circuit.

2, electronic alarm according to claim 1, it is characterized in that counting circuit is made up of counter, distributor circuit is made up of gate circuit, the off-hook control circuit drives relay K 1 by transistor circuit, the contact K1-1 of K1 and the switch hook of telephone set also connect, the dialing control circuit is by photoelectrical coupler M1, M2, memory button J1, the J2 of M3...... control phone, the conducting of J3......, the voice output control circuit drives relay K 2 by transistor circuit, the output of the contact K2-2 control voice output module of K2.

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