CN202084135U

CN202084135U - Novel fire-preventing monitor

Info

Publication number: CN202084135U
Application number: CN2011201999842U
Authority: CN
Inventors: 何天生
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-15
Filing date: 2011-06-15
Publication date: 2011-12-21
Anticipated expiration: 2021-06-15

Abstract

The utility model relates to a monitor, in particular to a novel fire-preventing monitor, which comprises a phase voltage acquisition circuit, a current signal acquisition circuit and a singlechip control circuit, the output signal of the phase voltage acquisition circuit is transmitted to a voltage comparison circuit, the output signal of the current signal acquisition circuit is transmitted to an A\D (analog-to-digital) data conversion circuit, the output signals of the voltage comparison circuit and the A\D data conversion circuit are transmitted to the singlechip control circuit, and output is connected with an indicator light circuit, a breaker drive circuit and a wireless transceiver circuit under the control of the singlechip control circuit. The novel fire-preventing monitor realizes the integration of wiredness and wirelessness, can detect fire signals in time, and prevents the phenomenon of missed alarm or false alarm.

Description

Novel fire monitoring device

Technical field

The utility model relates to a kind of supervising device, particularly be a kind of novel fire monitoring device.

Background technology

Along with deepening continuously of reform and opening-up, the improving constantly of people's living standard, office space and inhabitation residence design aspect are perfect inadequately, in case the breaking out of fire loss is huge.Existing fire detector is divided into the electrical fire detector and cigarette, temperature are felt fire detector; and existing fire monitoring device; only act on the action of threading off as electrical equipments such as isolating switch, insurance fuse, air switches; do not have the function that wireless transmission is reported to the police; and its detecting function is single; can't in time detect fire signal, occur the phenomenon of failing to report or reporting by mistake through regular meeting.

The utility model content

The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of novel fire monitoring device is provided.

The technical scheme that its technical matters that solves the utility model adopts is: novel fire monitoring device, comprise the phase voltage Acquisition Circuit, current signal Acquisition Circuit and single chip machine controlling circuit, the output signal of described phase voltage Acquisition Circuit sends to voltage comparator circuit, the output signal of described current signal Acquisition Circuit transfer to A the D data converting circuit, voltage comparator circuit and A the output signal of D data converting circuit be sent to single chip machine controlling circuit, connect indicator light circuit by single chip machine controlling circuit control output, isolating switch driving circuit and wireless transceiver circuit.

Described voltage comparator circuit comprises superpotential comparator circuit and under-voltage comparator circuit.

Described single chip machine controlling circuit and watchdog circuit bidirectional data communication.

Described phase voltage Acquisition Circuit is connected to the voltage stabilizing integration module by the output terminal in phase voltage loop through rectification, filtering circuit and constitutes.

The current transformer that described current signal Acquisition Circuit is passed by phase line is gathered current signal.

Described wireless transceiver circuit is made of FDD-5 transmitter module, JDD-5 receiver module, external light emitting diode and the loudspeaker of JDD-5 receiver module.

By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: the utility model adopts phase voltage Acquisition Circuit and current signal Acquisition Circuit acquired signal, by sending control signal after the Single-chip Controlling judgement, can realize radio alarming output, realize wired and wireless combining, can in time detect fire signal, avoid failing to report or reporting by mistake phenomenon.

Description of drawings

Fig. 1 is a frame assumption diagram of the present utility model;

Fig. 2 is circuit theory diagrams of the present utility model.

Embodiment

As shown in Figure 1, novel fire monitoring device of the present utility model, comprise phase voltage Acquisition Circuit 1, current signal Acquisition Circuit 2 and single chip machine controlling circuit 3, the output signal of described phase voltage Acquisition Circuit 1 sends to voltage comparator circuit 11, the output signal of described current signal Acquisition Circuit 2 transfer to A D data converting circuit 21, voltage comparator circuit 11 and A the output signal of D data converting circuit 21 be sent to single chip machine controlling circuit 3, connect indicator light circuit 31 by single chip machine controlling circuit 3 control outputs, isolating switch driving circuit 32 and wireless transceiver circuit 33, described voltage comparator circuit 11 comprises superpotential comparator circuit and under-voltage comparator circuit, described single chip machine controlling circuit 3 and watchdog circuit 5 bidirectional data communications.

As shown in Figure 2, when phase line is passed current transformer L and is had electric current to pass through, L level of current transformer two ends produce the ac induction voltage signal, after potentiometer W adjusts, diode D5 is rectified into d. c. voltage signal, be input to the 2nd pin of A/D data converter IC1, through the 5th of A/D data converter IC1,6, the 35th of 7 pin and single-chip microcomputer U1,36,37 pin are formed datel circuit, when the current signal of current transformer L induction when setting load current value, be judged as protected circuit or equipment is in the overload phenomenon through single-chip microcomputer U1 internal processes, single-chip microcomputer U1 sends control signal, first via output is by the 3rd pin output low level of single-chip microcomputer U1, promote LED 2 and light, there are overload or short circuit phenomenon in indication supply line; The second tunnel output through resistance R 3 current limlitings, makes triode VT1 conducting by the 8th pin output high level of single-chip microcomputer U1, the relay J adhesive, and its contact J-1 promotes isolating switch KM dropout separating brake, the safety of protection consumer and supply line by transferring normally closed point normal battle to; Third Road output through resistance R 5 current limlitings, makes triode Q1 conducting by the 34th pin output high level of single-chip microcomputer U1, is input to the 2nd pin of FDD-5 transmitter module IC3, and delivers to its 3rd pin CP modulation signal input end, and the high-frequency signal of emission is modulated.Antenna TX promptly launches modulated frequency electromagnetic waves to JDD-5 receiver module IC4.The 4th pin CPA audio signal output end of JDD-5 receiver module IC4 directly drives common electrical dynamic formula loudspeaker Y and sends chimes of doom, its the 2nd pin data output end is exported high level simultaneously, make LED 1 get electroluminescence, expression receives the alerting signal of extension set, reach long-distance monitoring and alarming, realize early monitoring.

Constitute the phase voltage loop by live wire L, zero line N, normal value is at the AC220V state, BT level of transformer output AC voltage is about 8V, after diode D1-D4 bridge rectifier, capacitor 1C1,1C2 filtering, this DC voltage divides two-way to be input to the 2nd, 3 pin of voltage stabilizing integration module U4 respectively, handle through its inner voltage stabilizing that back output 5V power supply is supplied with local circuit and for comparator circuit IC2 provides the reference comparison voltages value, another road is input to the in-phase end of comparator circuit IC2 through adjustable resistance W2 adjustment.

As live wire L, zero line N constitutes the phase voltage loop, magnitude of voltage is when AC280V, the secondary output AC voltage of transformer BT is about 11V, export through rectification, after potentiometer W2 adjusts, be input to the 3rd of comparator circuit IC2 respectively, 6 pin, with the 2nd of comparator circuit IC2,5 pin carry out voltage ratio, the 5th of comparator circuit IC2,6,7 pin and peripheral cell are formed the superpotential comparator circuit, when its 6th pin voltage during greater than its 5th pin voltage reference value, comparator circuit IC2 interior overturn, illustrate and be in the overvoltage phenomenon, be input to single-chip microcomputer U1 the 33rd pin by its 7th pin output high level through resistance 1R3 current limliting, after the control of single-chip microcomputer U1 internal processes is judged, export high level through resistance R 3 current limlitings by the 8th pin of single-chip microcomputer U1, make triode VT1 conducting, the relay J adhesive, its contact J-1 promotes isolating switch KM dropout separating brake by transferring normally closed point normal battle to, the safety of protection consumer and supply line illustrates and the overvoltage phenomenon takes place and the dropout separating brake; Another route single-chip microcomputer U1 the 34th pin output high level through resistance R 5 current limlitings, makes triode Q1 conducting, is input to the 2nd pin of FDD-5 transmitter module IC3, and delivers to its 3rd pin CP modulation signal input end, and the high-frequency signal of emission is modulated.Antenna TX promptly launches modulated frequency electromagnetic waves to JDD-5 receiver module IC4.The 4th pin CPA audio signal output end of JDD-5 receiver module IC4 directly drives common electrical dynamic formula loudspeaker Y and sends chimes of doom, its the 2nd pin data output end is exported high level simultaneously, make LED 1 get electroluminescence, expression receives the alerting signal of extension set, reach long-distance monitoring and alarming, realize early monitoring.

As live wire L, zero line N constitutes the phase voltage loop, magnitude of voltage is when AC150V, the secondary output AC voltage of transformer BT is about 5V, export through rectification, potentiometer W2 is input to the 3rd of comparator circuit IC2 after adjusting, 6 pin, with the 2nd of comparator circuit IC2,5 pin carry out voltage ratio, the 3rd of comparator circuit IC2,2,1 pin and peripheral cell are formed the under-voltage comparator circuit, when the 2nd pin voltage of comparator circuit IC2 during greater than its 3rd pin voltage reference value, comparator circuit IC2 interior overturn, illustrate that under-voltage phenomenon has appearred in line voltage, be input to the 32nd pin of single-chip microcomputer U1 through resistance 1R2 current limliting by the 1st pin output high level of comparator circuit IC2, after single-chip microcomputer U1 internal processes is judged, export high level through resistance R 3 current limlitings by the 8th pin of single-chip microcomputer U1, make triode VT1 conducting, the relay J adhesive, its contact J-1 is by transferring normally closed point normal battle to, promote isolating switch KM dropout separating brake, the safety of protection consumer and supply line illustrates and the overvoltage phenomenon takes place and the dropout separating brake; Another road output through resistance R 5 current limlitings, makes triode Q1 conducting by single-chip microcomputer U1 the 34th pin output high level, is input to the 2nd pin of FDD-5 transmitter module IC3, and delivers to its 3rd pin CP modulation signal input end, and the high-frequency signal of emission is modulated.Antenna TX promptly launches modulated frequency electromagnetic waves to JDD-5 receiver module IC4.The 4th pin CPA audio signal output end of JDD-5 receiver module IC4 directly drives common electrical dynamic formula loudspeaker Y and sends chimes of doom, its the 2nd pin data output end is exported high level simultaneously, make LED 1 get electroluminescence, expression receives the alerting signal of extension set, reach long-distance monitoring and alarming, realize early monitoring.

Above-described only is a preferred embodiment of the present utility model, can not limit the scope that this practicality is implemented, and every equalization of being done according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.

Claims

1. novel fire monitoring device, it is characterized in that: comprise phase voltage Acquisition Circuit (1), current signal Acquisition Circuit (2) and single chip machine controlling circuit (3), the output signal of described phase voltage Acquisition Circuit (1) sends to voltage comparator circuit (11), the output signal of described current signal Acquisition Circuit (2) transfer to A D data converting circuit (21), voltage comparator circuit (11) and A the output signal of D data converting circuit (21) be sent to single chip machine controlling circuit (3), connect indicator light circuit (31) by single chip machine controlling circuit (3) control output, isolating switch driving circuit (32) and wireless transceiver circuit (33).

2. novel fire monitoring device according to claim 1 is characterized in that: described voltage comparator circuit (11) comprises superpotential comparator circuit and under-voltage comparator circuit.

3. novel fire monitoring device according to claim 1 is characterized in that: described single chip machine controlling circuit (3) and watchdog circuit (5) bidirectional data communication.

4. novel fire monitoring device according to claim 1 is characterized in that: described phase voltage Acquisition Circuit (1) is connected to the voltage stabilizing integration module by the output terminal in phase voltage loop through rectification, filtering circuit and constitutes.

5. novel fire monitoring device according to claim 1 is characterized in that: the current transformer that described current signal Acquisition Circuit (2) is passed by phase line is gathered current signal.

6. novel fire monitoring device according to claim 1 is characterized in that: described wireless transceiver circuit (33) is made of FDD-5 transmitter module, JDD-5 receiver module, external light emitting diode and the loudspeaker of JDD-5 receiver module.