CN201862185U

CN201862185U - Fire alarm linkage device

Info

Publication number: CN201862185U
Application number: CN2010206029621U
Authority: CN
Inventors: 黄家兴; 黄伙平
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-12
Filing date: 2010-11-12
Publication date: 2011-06-15
Anticipated expiration: 2020-11-12

Abstract

The utility model relates to a fire alarm linkage device. A detected signal collected by an infrared smoke detection circuit is transmitted to a single chip microcomputer control circuit; an output alarm circuit, a linkage control driver circuit and a wireless transmission circuit are controlled through the single chip microcomputer control circuit controls; the signal is sent to a wireless alarm receiving circuit through the wireless transmission circuit; the infrared smoke detection circuit comprises an infrared light emitting diode VS1 and an infrared receiving diode VS2; and an output signal of the infrared receiving diode VS2 is transmitted to a calculation amplification circuit U1 for amplification and then transmitted to an LM 567 phase-locked loop audio decoder U5 for identification and decoding. In the fire alarm linkage device, the environmental smoke is monitored through infrared rays, and a fire alarm is raised on the site to warn people to take effective measures to eliminate a fire source in time. Meanwhile, the wireless warning message is sent, and other fire-fighting equipment can be linked to start up, so as to exhaust the smoke, ensure good ventilation indoor and protect the people from poisoning due to the inhalation of toxic gases.

Description

The fire alarm linkage

Technical field

The utility model relates to the fire alarm linkage.

Background technology

When traditional Smoke Sensor only detects smog and reaches finite concentration, can only cross wired or wireless warning, lack interlock control function, can not in time smog be got rid of outdoor.

The utility model content

The purpose of this utility model provides a kind of by the infrared observation ETS, and fire alarm is sent at the scene, sends radio alarming information simultaneously and other fire-fighting equipments of interlock start, the fire alarm linkage that smog is discharged.

The technical scheme that the utility model adopted is such: the fire alarm linkage, detection signal by the collection of infrared ray smoke detection circuit is sent to single chip machine controlling circuit, single chip machine controlling circuit control output alarm circuit, interlock control drive circuit, radio transmitter, radio transmitter sends to the radio alarming receiving circuit to signal.

Described infrared ray smoke detection circuit comprises infrared light-emitting diode VS1 and infrared receiver diode VS2, after the output signal of infrared receiver diode VS2 is delivered to operational amplification circuit U1 amplification, send to LM567 phaselocked loop tone decoder U5 identification decoding.

Described infrared light-emitting diode VS1 and infrared receiver diode VS2 install at a certain angle in the same way.

Described radio alarming receiving circuit 6 connects antenna by FDD-5 transmitter module U5 output, externally launches modulated frequency electromagnetic waves.

Described radio alarming receiving circuit adopts the JDD-5 receiver module.

By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: this device is by the infrared observation ETS, and fire alarm is sent at the scene, the calling people elimination burning things which may cause a fire disaster of in time adopting an effective measure.Send other fire-fighting equipments startups of radio alarming information and interlock simultaneously, smog is discharged, guarantee indoor good ventilation, avoid toxic gas to suck in the human body and poison.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

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

The specific embodiment

Further specify the utility model below in conjunction with the drawings and specific embodiments.

As shown in Figure 1 and Figure 2, the fire alarm linkage, the detection signal of being gathered by infrared ray smoke detection circuit 1 is sent to single chip machine controlling circuit 2, single chip machine controlling circuit 2 control output alarm circuits 3, interlock control drive circuit 4, radio transmitter 5, radio transmitter 5 sends to radio alarming receiving circuit 6 to signal.

Described infrared ray smoke detection circuit 1 comprises infrared light-emitting diode VS1 and infrared receiver diode VS2, infrared light-emitting diode VS1 one end series resistance R2, the other end is input to the colelctor electrode of triode Q1, infrared receiver diode VS2 one end series resistance R3, parallel resistance R4, shunt capacitance C1 again, be input to the 2nd pin of operational amplification circuit U1, its other end is input to the colelctor electrode of triode Q1, the emitter stage of triode Q1 is input to the 3rd pin of operational amplification circuit U1, the 1st foot meridian capacitor C2 of operational amplification circuit U1 is input to the 3rd pin of LM567 phaselocked loop tone decoder U5, the ground level of triode Q1 is input to the 5th pin of LM567 phaselocked loop tone decoder U5 through resistance R 1, the 8th pin of LM567 phaselocked loop tone decoder U5 is input to the ground level of triode Q2 through resistance R 6, the emitter stage of triode Q2 is delivered to the 34th pin of single chip machine controlling circuit U2, and connects a pull-up resistor R7.The infrared collection smog of infrared light-emitting diode VS1 and infrared receiver diode VS2 maximum characteristics be realized the infrared ray emission with receive operating frequency synchronously from motion tracking, be that the infrared ray radiating portion is not established special pulse generating circuit, and directly from the pulse (the phase-locked center frequency signal of LM567 phaselocked loop tone decoder U5) that induces one of the testing circuit of receiving unit, circuit and debugging work had both been simplified, prevented that again with the passing of time surrounding environment change and component parameters from changing the difference that the sending and receiving frequency is caused, circuit stability and antijamming capability are strengthened greatly.

Connect power supply, by the about 10kHz of frequency of phaselocked loop tone decoder U5 the 5th pin output, the standard rectangular impulse wave of the about 4V of amplitude, be delivered to the base stage of triode Q1 by resistance R 1. after triode Q1 power amplification. drive infrared light-emitting diode VS1 and forwards launch infrared light pulse.When there not being breaking out of fire, and when non smoke produces, because infrared receiver diode VS2 and VS1 install at a certain angle in the same way, so infrared receiver diode VS2 does not receive the infrared light pulse of infrared light-emitting diode VS1 emission, circuit is in static monitoring state, the output of LM567 phaselocked loop tone decoder U5 no signal.In case breaking out of fire in the environment that is monitored and be attended by smog when producing, then the infrared ray pulse that will send infrared light-emitting diode VS1 of the fine particle in the smog produces diffuse reflection, has sub-fraction will advance people's infrared receiver diode VS2 and is transformed into the signal of telecommunication of same frequency.This signal is through resistance R 4, capacitor C 1 lotus root is bonded to operational amplification circuit U1 amplify after, by 3rd pin of capacitor C 2 defeated people to phaselocked loop tone decoder U5, after discerning decoding by phaselocked loop tone decoder U5, make its 8 pin output low level, through resistance R 6 conductings, be input to single chip machine controlling circuit U2 the 34th pin I/O port, divide three tunnel outputs through the control of single chip machine controlling circuit U2 internal logic, the first via ends triode Q4 from the 3rd pin output low level signal of single chip machine controlling circuit U2 through resistance R 9, loudspeaker BYY obtains operating voltage and sends the sound that ticks, the 6th pin output low level signal of secondary route single chip machine controlling circuit U2 ends triode Q3 through resistance R 8, the relay J adhesive, switch J1-1 transfers normally closed point to by often opening, also adhesive of contactor KM, promote the fireproofing electric device start, the chance of escape is provided to people.Third Road is controlled from its 25th pin I/O mouth output drive signal by single chip machine controlling circuit U2 internal processes, the output low-potential signal makes triode Q5 conducting through resistance resistance R 10, be input to the 2nd pin of FDD-5 transmitter module U3, be sent to the 3rd pin of FDD-5 transmitter module U3, be modulation signal input end CP, high-frequency signal to emission is modulated, and the 4th pin output of FDD-5 transmitter module U5 connects antenna, externally launches modulated frequency electromagnetic waves.The output signal of FDD-5 transmitter module U5 is delivered to JDD-5 radio alarming receiver module U4, the 4th pin CPA audio signal output end of wireless receiving warning circuit U4 directly drives loudspeaker Y sounding, the 2nd pin data output end output high level of wireless receiving warning circuit U4 makes diode (LED) 1 get electroluminescence, and the expression receiver receives the alarm signal of extension set.

More than show and described basic principle of the present utility model and principal character and advantage thereof; the technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the explanation just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. fire alarm linkage, it is characterized in that: the detection signal of being gathered by infrared ray smoke detection circuit (1) is sent to single chip machine controlling circuit (2), single chip machine controlling circuit (2) control output alarm circuit (3), interlock control drive circuit (4), radio transmitter (5), radio transmitter (5) sends to radio alarming receiving circuit (6) to signal.

2. fire alarm linkage according to claim 1, it is characterized in that: described infrared ray smoke detection circuit (1) comprises infrared light-emitting diode VS1 and infrared receiver diode VS2, after the output signal of infrared receiver diode VS2 is delivered to operational amplification circuit U1 amplification, send to LM567 phaselocked loop tone decoder U5 identification decoding.

3. fire alarm linkage according to claim 2 is characterized in that: described infrared light-emitting diode VS1 and infrared receiver diode VS2 install at a certain angle in the same way.

4. fire alarm linkage according to claim 1 is characterized in that: described radio alarming receiving circuit (6) connects antenna by FDD-5 transmitter module U5 output, externally launches modulated frequency electromagnetic waves.

5. fire alarm linkage according to claim 1 is characterized in that: described radio alarming receiving circuit (6) adopts the JDD-5 receiver module.