CN202119743U

CN202119743U - Novel toxic gas monitoring device

Info

Publication number: CN202119743U
Application number: CN2011202188534U
Authority: CN
Inventors: 傅木耳
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-27
Filing date: 2011-06-27
Publication date: 2012-01-18
Anticipated expiration: 2021-06-27

Abstract

The utility model relates to a monitoring device, in particular to a novel toxic gas monitoring device, which comprises a gas sensitive concentration detecting module, an infrared induction detecting module, a single chip microcomputer control module, a wireless transmitting and receiving alarm module and an exhaust fan driving module, wherein the gas sensitive concentration detecting module acquires and transmits signals to a voltage amplification module, and output signals of the voltage amplification module and the infrared induction detecting module are outputted to the wireless transmitting and receiving alarm module and the exhaust fan driving module through control of the single chip microcomputer control module. The novel toxic gas monitoring device adopts the infrared induction detecting module and the gas sensitive concentration detecting module to acquire the signals, when gas concentration extends standard or an illegal invader infrared ray is detected, the single chip microcomputer sends out control signals through judgment based on the signals acquired by a gas sensor and an infrared detector, the exhaust fan is linked to ventilate, and alarm information is transmitted to a receiving mainframe module through a wireless transmitting module. The novel toxic gas monitoring device integrates gas detection and invasion antitheft, so that the purposes of security and protection are realized.

Description

Novel toxic gas supervising device

Technical field

The utility model relates to a kind of supervising device, particularly be a kind of novel toxic gas supervising device.

Background technology

The gas detector of selling on the market is mainly used in family and uses, but the stolen property situation in the family happens occasionally, and people need that pir intrusion detector is installed in addition and realize, and the cost cost is high, the networking difficulty.

The utility model content

The purpose of the utility model is to overcome above-mentioned deficiency, and a kind of novel toxic gas supervising device is provided.

The utility model solves the technical scheme that its technical matters adopted: novel toxic gas supervising device; Comprise air-sensitive concentration detection module, infrared induction detection module, single chip control module, wireless receiving and dispatching alarm module and exhaust blower driver module; The signal of said air-sensitive concentration detection module collection sends to the voltage amplification module, and the output signal of voltage amplification module and infrared induction detection module exports wireless receiving and dispatching alarm module and exhaust blower driver module to through single chip control module control.

Said air-sensitive concentration detection module adopts UL-281 heater-type semiconductor gas sensing device acquired signal.

Said infrared induction detection module is made up of the output terminal connection rpyroelectric infrared control integrated circuit of pyroelectric infrared sensor.

Said rpyroelectric infrared control integrated circuit adopts the YX7603 integrated circuit; Gain by its external resistor and its inner first order voltage amplifier of capacitor adjustment; The output signal of first order voltage amplifier is input to second level voltage amplifier, and second level voltage amplifier is formed low frequency bandpass amplifier by CSET.

Said wireless receiving and dispatching alarm module is made up of FDD-5 transmitter module, JDD-5 receiver module, external light emitting diode and the loudspeaker of JDD-5 receiver module.

Through adopting above-mentioned technical scheme; The beneficial effect of the utility model is: this device adopts infrared induction detection module and air-sensitive concentration detection module acquired signal; When gas concentration exceeds standard or during illegal invasion person's infrared ray; The signal of signal that gas sensor is gathered and infrared eye collection sends control signal through the single-chip microcomputer judgement, the ventilation of interlock exhaust blower, and pass through wireless transmitter module to receiving host module transmission warning message; The gas collection health check-up is surveyed and is invaded and guard against theft in one, reaches the purpose of safety precaution.

Description of drawings

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

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

Embodiment

Like Fig. 1, shown in Figure 2; The novel toxic gas supervising device of the utility model; Comprise air-sensitive concentration detection module 1, infrared induction detection module 2, single chip control module 3, wireless receiving and dispatching alarm module 4 and exhaust blower driver module 5; The signal that said air-sensitive concentration detection module 1 is gathered sends to voltage amplification module 11, and the output signal of voltage amplification module 11 and infrared induction detection module 2 exports wireless receiving and dispatching alarm module 4 and exhaust blower driver module 5 to through single chip control module 3 controls.

Said air-sensitive concentration detection module 1 adopts UL-281 heater-type semiconductor gas sensing device SW acquired signal, and it has high sensitivity to CO gas, and the variation of environment temperature and humidity is had good stable property.Form voltage amplifier circuit by operational amplifier IC2, resistance R 6, resistance R 2, resistance R 3 etc.When the SW gas sensor is high resistant when 1M ohm is above, when the CO gas leakage reached finite concentration, when the anxious brush decline of the resistance of UL-281 heater-type semiconductor gas sensing device SW, it is big that the voltage amplification factor of operational amplifier IC2 becomes, and output voltage strengthens thereupon.Since the setting value of the 2nd pin in-phase end reference voltage of operational amplifier IC2, when the CO gas concentration surpasses setting value, the 1st pin of operational amplifier IC2 output high level signal; Through resistance R 7 current limlitings, this signal is input to single-chip microcomputer IC1 the 21st pin I/O end, after single-chip microcomputer IC1 internal processes is judged, sends control signal; By single-chip microcomputer IC1 the 28th pin I/O mouth output high level signal; Through resistance R 9 current limlitings, make triode Q1 conducting, be input to the 2nd pin of FDD-5 transmitter module IC3; And deliver to its 3rd pin CP modulation signal input end, 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 2nd pin data output end is exported high level simultaneously; Make LED 1 electroluminescence, expression receives the alerting signal of extension set, representing indoorly has poison gas to release; The 4th pin output high level of another route single-chip microcomputer IC1, through resistance R 8 current limlitings, triode Q2 conducting; Relay J 1 adhesive, its contact J1-1 is by transferring normally closed point normal battle to, and exhaust blower M gets; Start exhaust blower and carry out exhaust ventilation, indoor gas is discharged support personnel's safety indoor.

Said infrared induction detection module 2 is made up of the output terminal connection YX7603 IC 5 of pyroelectric infrared sensor YUN; When the people moves before pyroelectric infrared sensor YUN; The voltage amplifier of detectable signal in the 6th pin of the defeated people YX7603 IC 5 of coupling capacitor 1C1 of pyroelectric infrared sensor YUN output; Second level voltage amplifier is adjusted Amplifier Gain and is prevented self-excitation through its external parallel resistor device 1R1 and capacitor 1C2, the defeated people second level of the signal after amplification amplifier.Can through external potentiometer W1 between the 17th, 18 pin of YX7603 IC 5 regulate monitoring human near the surveillance area near distance.Second level voltage amplifier is formed low frequency bandpass amplifier by CSET 1C5, and the signal after the amplification is through voltage comparator and latch, after time-delay etc. handles, be low level state by the 13rd pin output low level of YX7603 IC 5 to the 26th pin of single-chip microcomputer IC1; Judge to exist and steal illegal act; After the programmed control of single-chip microcomputer IC1 internal logic is judged, by single-chip microcomputer IC1 the 28th pin I/O mouth output high level signal, through resistance R 9 current limlitings; Make triode Q1 conducting; Be input to the 2nd pin of FDD-5 transmitter module IC3, and deliver to its 3rd pin CP modulation signal input end, 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 2nd pin data output end is exported high level simultaneously; Make LED 1 get electroluminescence; Expression receives the alerting signal of extension set, existing illegal invasion person is described, the processing of please reaching the spot.

An above-described preferred embodiment that is merely the 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 toxic gas supervising device; It is characterized in that: comprise air-sensitive concentration detection module (1), infrared induction detection module (2), single chip control module (3), wireless receiving and dispatching alarm module (4) and exhaust blower driver module (5); The signal that said air-sensitive concentration detection module (1) is gathered sends to voltage amplification module (11), and the output signal of voltage amplification module (11) and infrared induction detection module (2) exports wireless receiving and dispatching alarm module (4) and exhaust blower driver module (5) to through single chip control module (3) control.

2. novel toxic gas supervising device according to claim 1 is characterized in that: said air-sensitive concentration detection module (1) adopts UL-281 heater-type semiconductor gas sensing device acquired signal.

3. novel toxic gas supervising device according to claim 1 is characterized in that: said infrared induction detection module (2) is made up of the output terminal connection rpyroelectric infrared control integrated circuit of pyroelectric infrared sensor.

4. novel toxic gas supervising device according to claim 3; It is characterized in that: said rpyroelectric infrared control integrated circuit adopts the YX7603 integrated circuit; Gain by its external resistor and its inner first order voltage amplifier of capacitor adjustment; The output signal of first order voltage amplifier is input to second level voltage amplifier, and second level voltage amplifier is formed low frequency bandpass amplifier by CSET.

5. novel toxic gas supervising device according to claim 1 is characterized in that: said wireless receiving and dispatching alarm module (4) is made up of FDD-5 transmitter module, JDD-5 receiver module, external light emitting diode and the loudspeaker of JDD-5 receiver module.