CN110009862A - A kind of fire detector and the fire the condition of a disaster detection method based on the fire detector - Google Patents
A kind of fire detector and the fire the condition of a disaster detection method based on the fire detector Download PDFInfo
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- CN110009862A CN110009862A CN201910398816.7A CN201910398816A CN110009862A CN 110009862 A CN110009862 A CN 110009862A CN 201910398816 A CN201910398816 A CN 201910398816A CN 110009862 A CN110009862 A CN 110009862A
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- 238000001514 detection method Methods 0.000 title claims abstract description 159
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 53
- 239000000779 smoke Substances 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 2
- 210000004556 brain Anatomy 0.000 claims 1
- 238000004088 simulation Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 description 9
- 230000001535 kindling effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/22—Status alarms responsive to presence or absence of persons
Abstract
A kind of fire the condition of a disaster detection method the invention discloses fire detector and based on the fire detector, including testing circuit, including detection circuit, the detection circuit includes power module, cigarette sense module, flame detection modules, microwave radar detection module and switch module, the power module is electrically connected with cigarette sense module, flame detection modules, microwave radar detection module and switch module, for providing electric energy for it；The output end of the cigarette sense module is the second logic output terminal DO2, and the output end of the cigarette sense module and the input terminal of switch module are electrical connected, for turning on and off for control switch module.The present invention, which solves existing fire detector, cannot detect scene of fire intensity of a fire size, and cannot detect the problem of scene of fire is either with or without living person.
Description
Technical field
The present invention relates to technical field of fire detection, specially a kind of fire detector and the fire based on the fire detector
Calamity the condition of a disaster detection method.
Background technique
Fire detector is to detect in fire automatic alarm system to scene, the equipment for finding fire.Fire
Detector is system " sense organ ", its effect is the generation monitored in environment either with or without fire, once there is fire behavior, just
The feature physical quantity of fire, such as temperature, smog, gas and radiation light intensity are converted into electric signal, and acted immediately to fire
Alarm controller sends alarm signal.
But present fire detector, it is single smog alarm sensor mostly, after kindling, intensity of a fire size detection
Less than, it either with or without living person in kindling backhouse, also can't detect, radar sensor module special detection movable people within doors, because,
Few living persons stay motionless after kindling.The fire detector that this case is related to seeks to solve, intensity of a fire size and kindling backhouse
Interior either with or without living person, usually only cigarette sense is working, once there is smog that cigarette sense is caused to start, flame and microwave radar sensor are just
Armed state can be entered, if flame and microwave radar sensor module will be automatically closed after smog dissipates.
Summary of the invention
A kind of fire the condition of a disaster detection side the purpose of the present invention is to provide fire detector and based on the fire detector
Method, scene of fire intensity of a fire size cannot be detected by solving the existing fire detector proposed in above-mentioned technical background, and not
The problem of scene of fire is either with or without living person can be detected.
To achieve the above object, the invention provides the following technical scheme: a kind of fire detector, output end and industrial intelligence
Energy collection plate or industrial alarm electrical connection, the fire detector includes detection circuit, and the detection circuit includes power supply mould
Block, cigarette sense module, flame detection modules, microwave radar detection module and switch module, the power module and cigarette sense module, fire
Flame detection module, microwave radar detection module and switch module are electrically connected, for providing electric energy for it；The cigarette sense module
Output end be the second logic output terminal DO2, and the output end of the cigarette sense module and the input terminal of switch module are electrical connected,
For turning on and off for control switch module, the output end and flame detection modules and microwave radar detection of the switch module
Module is electrical connected, for controlling the connection of flame detection modules and microwave radar detection module；The flame detection modules
Output end is the first logic output terminal DO1, and the output end of the microwave radar detection module is third logic output terminal DO3.
Preferably, the cigarette sense module includes smoke sensor device, first comparator IC1, cigarette sense adjusts circuit and cigarette sense is opened
Indicating circuit is closed, the reverse input end of the output end and first comparator IC1 of the smoke sensor device is electrical connected, the cigarette sense
The non-inverting input terminal for adjusting circuit and first comparator IC1 is electrical connected, described for adjusting the detection range of smoke sensor device
The output end of first comparator IC1 is electrical connected by smoke-sensing switch indicating circuit and its power end, the smoke-sensing switch instruction
Circuit includes resistance R10 and Light-emitting diode LED 1, is used to indicate the working condition of cigarette sense module.
Preferably, the flame detection modules include that infrared receiving tube, fire defector power indicating circuit, fire defector are opened
It closes indicating circuit, the second comparator IC2 and fire defector and adjusts circuit, the output end of the infrared receiving tube and the second comparator
The noninverting input of IC2 is electrical connected, and the fire defector adjusts the reverse input end electrical property phase of circuit and the second comparator IC2
Even, it is finely adjusted for the reverse input end voltage to the second comparator IC2, the output end of the second comparator IC2 passes through
Fire defector switch indicating circuit is electrical connected with its power end, the fire defector switch indicating circuit include resistance R13,
R14 and Light-emitting diode LED 3, are used to indicate the working condition of flame detection modules；
The fire defector power indicating circuit includes capacitor C11, resistance R11 and Light-emitting diode LED 2, the resistance
It is connected in parallel after R11 and the series connection of the second light emitting diode with capacitor C11, one end of the capacitor C11 and the output of power module
End is electrical connected, and the output end of the other end and switch module is electrical connected, and the fire defector power indicating circuit is used to indicate
The power supply state of flame detection modules；The output end of the infrared receiving tube draws the first analog output end AO1.
Preferably, the microwave radar detection module include microwave motion sensor, microwave radar power indicating circuit and
Third comparator IC3, the output end of the microwave motion sensor adjust the input of circuit and third comparator IC3 by conversion
End is connected, and it includes that microwave radar detection adjusts circuit that the conversion, which adjusts circuit, for being adjusted to detections of radar range；Institute
The output end for stating third comparator IC3 is electrical connected by microwave radar power indicating circuit and its power end, the microwave thunder
Include resistance R100 and Light-emitting diode LED 4 up to power indicating circuit, is used to indicate the work shape of microwave radar detection module
State.
Preferably, the switch module includes triode Q3 and triode Q4, the emitter and power supply of the triode Q3
Module is connected, and the base stage of the triode Q3 is connected by resistance R15 with the second logic output terminal DO2, the collection of triode Q3
Electrode is connected by resistance R17 with the base stage of triode Q4, and the collector of triode Q3 passes through resistance R18's and triode Q4
Emitter is connected；
The collector of the triode Q4 passes through the signal of resistance R16 and flame detection modules and microwave radar detection module
Ground is electrical connected, for controlling turning on and off for flame detection modules and microwave radar detection module for power supply circuit.
Preferably, the power module turns 12V/5V module, the direct-flow input end DC-IN of the power module using 24V
External 24V DC power anode, the external 24V DC power cathode of signal ground terminal GND of power module, and the signal of power module
Ground terminal GND is connected with the signal ground of cigarette sense module；
The power module includes direct current 5V output end and direct current 12V output end, and the direct current 5V output end and cigarette sense
The power end of module and flame detection modules is electrical connected；The direct current 12V output end of the power module passes through resistance R101
It is connected with triode Q1 with the power end of microwave radar detection module, direct current 5V output end passes through diode D11 and triode Q1
Base stage be connected.
Preferably, the industrial intelligent collection plate includes analog input end, On-off signal end, main control chip and Internet of Things
Net module, the analog input end are connected with the first analog output end AO1 of detection circuit, the On-off signal end with
The first logic output terminal DO1, the second logic output terminal DO2, the third logic output terminal DO3 of detection circuit are connected, and analog quantity is defeated
Enter end and On-off signal end to be electrical connected with main control chip, be divided for warning message to be sent to industrial intelligent collection plate
Analysis processing, main control chip and Internet of Things module are electrical connected, and main control chip is for handling warning message and passing through Internet of Things
Processed warning message is sent to cell phone application or computer terminal by net module.
A kind of fire the condition of a disaster detection method based on fire detector, detection method includes the following steps for the fire the condition of a disaster:
S1: live smokescope information is obtained；
S2: live smokescope information is compared with standard smokescope value；
S3: if live smokescope information is less than or equal to standard smokescope value, without to scene the intensity of a fire and whether there is or not
The case where movable people, is detected；
S4: if live smokescope information is greater than standard smokescope value, need to obtain scene the intensity of a fire and whether there is or not
The information of movable people；
S5: live smokescope information, the intensity of a fire information at scene and the information for having inert people are sent to industrial intelligence
The information is sent to mobile phone terminal or computer terminal by network by energy collection plate, industrial intelligent collection plate.
Preferably, step S4 has the case where inert people to detect at scene using the microwave induced module of Doppler.
Preferably, step S4 application infrared receiving tube detects the intensity of a fire situation at scene.
Compared with prior art, the beneficial effects of the present invention are:
1, fire detector includes detection circuit, and detection circuit includes cigarette sense module, and cigarette sense module is used to detect scene
Smokescope, cigarette sense module include that first comparator IC1, smoke sensor device, cigarette sense adjust circuit and smoke-sensing switch indicating circuit,
Smoke sensor device detects smokescope, and when there is certain density smog to occur, smoke sensor device is started to work so that the first ratio
Low level is exported compared with device IC1, then the second logic output terminal DO2 output represents the low level signal for having smog to generate；At this point, cigarette sense
Switch indicating circuit lights, and related personnel is prompted to have smog generation；And circuit, adjustable smog are adjusted by setting cigarette sense
The detection range of sensor, so as to realize the function of detecting live smokescope.
2, detection circuit includes flame detection modules, and flame detection modules are used to detect the intensity of a fire size at scene, flame inspection
Surveying module includes that infrared receiving tube, fire defector switch indicating circuit, the second comparator IC2 and fire defector adjust circuit, red
Outer reception pipe detects intensity of a fire size, and when a fire, infrared receiving tube is started to work so that the second comparator IC2 exports low electricity
Flat, then the first logic output terminal DO1 output represents the low level signal for having fire to occur；At this point, fire defector switch instruction electricity
Road lights, and related personnel is prompted to have fire；And circuit, adjustable second comparator are adjusted by setting fire defector
The voltage of IC2 input terminal may be implemented to detect live fire according to the analog quantity current signal of the 4-20mA of infrared receiving tube output
The function of gesture size.
3, detection circuit includes microwave radar detection module, and microwave radar detection module includes microwave motion sensor, micro-
The output end of wave radar power supply indicating circuit and third comparator IC3, the microwave motion sensor adjust circuit by conversion
It is connected with the input terminal of third comparator IC3, it includes that microwave radar detection adjusts circuit that the conversion, which adjusts circuit, be can be used for pair
Detections of radar range is adjusted；So as to realize detection scene either with or without the function of living person.
4, detection circuit includes switch module, the output end and flame detection modules and microwave radar detection mould of switch module
Block is electrical connected, for controlling the connection of flame detection modules and microwave radar detection module；Since flame sensor will receive
Daylight and the usually influence of small flare within doors, such as lighter can start the alarm of flame sensor module, therefore the fire is visited
Survey device and started by cigarette sense module and flame detection modules and microwave radar detection module is driven to start, ensure that flame detection modules and
Microwave radar detection module just starts when there is the condition of a disaster, improves the accuracy of fire detector.
Detailed description of the invention
Fig. 1 is the circuit diagram of present invention test circuit；
Fig. 2 is that conversion adjusts the circuit diagram of circuit in microwave radar detection module in the present invention；
Fig. 3 is the principle explanatory diagram of doppler principle in present invention test circuit；
Fig. 4 is the experimental result of LM393 comparator in present invention experiment one；
Fig. 5 is the experimental result of LM393 comparator in present invention experiment two；
Fig. 6 is the experimental result of LM393 comparator in present invention experiment three；
Fig. 7 is the experimental result of LM393 comparator in present invention experiment four.
1, smoke sensor device；2, infrared receiving tube；3, microwave motion sensor；4, cigarette sense adjusts circuit；5, fire defector
Adjust circuit；6, microwave radar detection adjusts circuit.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-7, a kind of embodiment provided by the invention: a kind of fire detector, output end and industrial intelligent
Collection plate or the electrical connection of industrial alarm, the fire detector includes detection circuit, the detection circuit include power module,
Cigarette sense module, flame detection modules, microwave radar detection module and switch module, the power module and cigarette sense module, flame
Detection module, microwave radar detection module and switch module are electrically connected, for providing electric energy for it；The cigarette sense module
Output end is the second logic output terminal DO2, and the output end of the cigarette sense module and the input terminal of switch module are electrical connected, and is used
In turning on and off for control switch module, the output end and flame detection modules and microwave radar detection mould of the switch module
Block is electrical connected, for controlling the connection of flame detection modules and microwave radar detection module；The flame detection modules it is defeated
Outlet is the first logic output terminal DO1, and the output end of the microwave radar detection module is third logic output terminal DO3.
The cigarette sense module includes smoke sensor device 1, first comparator IC1, cigarette sense adjusts circuit 4 and smoke-sensing switch indicates
The reverse input end of circuit, the output end and first comparator IC1 of the smoke sensor device 1 is electrical connected, and the cigarette sense is adjusted
Circuit 4 and the non-inverting input terminal of first comparator IC1 are electrical connected, for adjusting the detection range of smoke sensor device 1, described
The output end of one comparator IC1 is electrical connected by smoke-sensing switch indicating circuit and its power end, the smoke-sensing switch instruction electricity
Road includes resistance R10 and Light-emitting diode LED 1, is used to indicate the working condition of cigarette sense module.
The flame detection modules include infrared receiving tube 2, fire defector power indicating circuit, fire defector switch instruction
Circuit, the second comparator IC2 and fire defector adjust circuit 5, the output end of the infrared receiving tube 2 and the second comparator IC2
Noninverting input be electrical connected, the fire defector adjusts the reverse input end electrical property phase of circuit 5 and the second comparator IC2
Even, it is finely adjusted for the reverse input end voltage to the second comparator IC2, the output end of the second comparator IC2 passes through
Fire defector switch indicating circuit is electrical connected with its power end, the fire defector switch indicating circuit include resistance R13,
R14 and Light-emitting diode LED 3, are used to indicate the working condition of flame detection modules；The output end of the infrared receiving tube 2 draws
First analog output end AO1 out, the analog output range of infrared receiving tube 2 are the current signal of 4-20mA, and the intensity of a fire is bigger,
The output electric current of infrared receiving tube 2 is bigger, it is thus achieved that the function of being detected to intensity of a fire size.
The fire defector power indicating circuit includes capacitor C11, resistance R11 and Light-emitting diode LED 2, the resistance
It is connected in parallel after R11 and the series connection of the second light emitting diode with capacitor C11, one end of the capacitor C11 and the output of power module
End is electrical connected, and the output end of the other end and switch module is electrical connected, and the fire defector power indicating circuit is used to indicate
The power supply state of flame detection modules；The output end of the infrared receiving tube 2 draws the first analog output end AO1.
The microwave radar detection module includes microwave motion sensor 3, microwave radar power indicating circuit and third ratio
Compared with device IC3, the output end of the microwave motion sensor 3 adjusts the input terminal phase of circuit and third comparator IC3 by conversion
Even, it includes that microwave radar detection adjusts circuit 6 that the conversion, which adjusts circuit, for being adjusted to detections of radar range；It is described
The output end of third comparator IC3 is electrical connected by microwave radar power indicating circuit and its power end, the microwave radar
Power indicating circuit includes resistance R100 and Light-emitting diode LED 4, is used to indicate the working condition of microwave radar detection module.
The switch module includes emitter and the power module phase of triode Q3 and triode Q4, the triode Q3
Even, and the base stage of the triode Q3 is connected by resistance R15 with the second logic output terminal DO2, and the collector of triode Q3 is logical
It crosses resistance R17 to be connected with the base stage of triode Q4, and the collector of triode Q3 passes through the emitter of resistance R18 and triode Q4
It is connected.
The collector of the triode Q4 passes through the signal of resistance R16 and flame detection modules and microwave radar detection module
Ground is electrical connected, for controlling turning on and off for flame detection modules and microwave radar detection module for power supply circuit.
The power module turns 12V/5V module, the external 24V of direct-flow input end DC-IN of the power module using 24V
DC power anode, the external 24V DC power cathode of signal ground terminal GND of power module, and the signal ground terminal GND of power module
It is connected with the signal ground of cigarette sense module.
The power module includes direct current 5V output end and direct current 12V output end, and the direct current 5V output end and cigarette sense
The power end of module and flame detection modules is electrical connected；The direct current 12V output end of the power module passes through resistance R101
It is connected with triode Q1 with the power end of microwave radar detection module, direct current 5V output end passes through diode D11 and triode Q1
Base stage be connected.
The industrial intelligent collection plate includes analog input end, On-off signal end, main control chip and Internet of Things module,
The analog input end is connected with the first analog output end AO1 of detection circuit, the On-off signal end and detection electricity
The first logic output terminal DO1 on road, the second logic output terminal DO2, third logic output terminal DO3 are connected, analog input end and
On-off signal end is electrical connected with main control chip, carries out at analysis for warning message to be sent to industrial intelligent collection plate
Reason, main control chip and Internet of Things module are electrical connected, and main control chip is used to carry out handling to warning message and by Internet of Things mould
Processed warning message is sent to cell phone application or computer terminal by block.
A kind of fire the condition of a disaster detection method based on fire detector, detection method includes the following steps for the fire the condition of a disaster:
S1: live smokescope information is obtained；
S2: live smokescope information is compared with standard smokescope value；
S3: if live smokescope information is less than or equal to standard smokescope value, without to scene the intensity of a fire and whether there is or not
The case where movable people, is detected；
S4: if live smokescope information is greater than standard smokescope value, need to obtain scene the intensity of a fire and whether there is or not
The information of movable people；
S5: live smokescope information, the intensity of a fire information at scene and the information for having inert people are sent to industrial intelligence
The information is sent to mobile phone terminal or computer terminal by network by energy collection plate, industrial intelligent collection plate.
Step S4 has the case where inert people to detect at scene using the microwave induced module of Doppler；
Step S4 application infrared receiving tube detects the intensity of a fire situation at scene.
Working principle: fire detector includes detection circuit, and detection circuit includes cigarette sense module, and cigarette sense module is for detecting
The smokescope at scene, cigarette sense module include first comparator IC1, smoke sensor device 1, cigarette sense adjusting circuit 4 and smoke-sensing switch
Indicating circuit, smoke sensor device 1 detects smokescope, and when there is certain density smog to occur, smoke sensor device 1 is started to work
So that first comparator IC1 exports low level, then the second logic output terminal DO2 output represents the low level letter for having smog to generate
Number；At this point, smoke-sensing switch indicating circuit lights, related personnel is prompted to have smog generation；And circuit is adjusted by setting cigarette sense
4, the detection range of adjustable smoke sensor device 1, so as to realize the function of detecting live smokescope.
Detection circuit includes flame detection modules, and flame detection modules are used to detect the intensity of a fire size at scene, fire defector
Module includes that infrared receiving tube 2, fire defector switch indicating circuit, the second comparator IC2 and fire defector adjust circuit 5, red
Outer reception pipe 2 detects intensity of a fire size, and when a fire, infrared receiving tube 2 is started to work so that the second comparator IC2 output is low
Level, then the first logic output terminal DO1 output represent the low level signal for having fire to occur；At this point, fire defector switch instruction
Circuit lights, and related personnel is prompted to have fire；And circuit 5, adjustable second ratio are adjusted by setting fire defector
It may be implemented to detect according to the analog quantity current signal for the 4-20mA that infrared receiving tube 2 exports compared with the voltage of device IC2 input terminal
The function of live intensity of a fire size.
Detection circuit includes microwave radar detection module, and microwave radar detection module includes microwave motion sensor 3, microwave
Radar power supply indicating circuit and third comparator IC3, the output end of the microwave motion sensor 3 by conversion adjust circuit with
The input terminal of third comparator IC3 is connected, and it includes microwave radar detection adjusting circuit 6 that the conversion, which adjusts circuit, can be used for pair
Detections of radar range is adjusted；So as to realize detection scene either with or without the function of living person.
Detection circuit includes switch module, the output end and flame detection modules and microwave radar detection module of switch module
It is electrical connected, for controlling the connection of flame detection modules and microwave radar detection module；Infrared receiving tube 2 is using can detect
The infrared sensor of 760 nanometer of -1100 nano wave length；Since flame sensor will receive daylight and usually small flare within doors
It influences, for example lighter can start the alarm of flame sensor module, therefore the fire detector starts drive by cigarette sense module
Flame detection modules and the starting of microwave radar detection module, ensure that flame detection modules and microwave radar detection module are having calamity
Just start when feelings, improves the accuracy of fire detector.
Specific implementation: in the present embodiment, the concrete model of smoke inductor is QM-N10, the tool of microwave motion sensor 3
Body model HB100, HB100 microwave module is mobile using the microwave of Doppler radar (Doppler Radar) principle design
Object detector, Doppler Theory are electric waves when radio wave encounters object during traveling based on the time
It can be reflected, the frequency of back wave can change with the moving condition for encountering object.If the position for the object that radio wave is encountered
It is fixed for setting, then the frequency of back wave and the frequency of transmitted wave should be equal.If object is mobile towards the direction of transmitting,
Then reflected wave can be compressed, that is the frequency of back wave will increase；Otherwise the frequency of reflected wave can be therewith
Reduce.
As shown in figure 3, when speed of the object in the effective scope of detection of microwave motion sensor 3 with 1m/s is relative to micro-
When wave movable sensor 3 radially moves, the IF of microwave motion sensor 3 output is 72Hz/s, the pulsation output frequency of IF with
Object relatively radially movement speed at linear approximate relationship.The output amplitude of IF and size, the distance dependent of object, when an individual
The tester of 70kg, height 170cm are passed with the speed of 1m/s relative to microwave movement at distance microwave movable sensor 31m again
When sensor 3 radially moves, the output of IF is 5mV, 72Hz/s fluctuating signal, the output amplitude of IF and distance square at approximate
Inverse relation.
In use, adding 24V direct current to detection circuit first, due to the signal ground terminal GND and cigarette sense module of power module
Signal ground be connected, therefore be powered after smoke sensor device 1 first it is electric, when there is smog generation, smoke inductor start-up operation so that
First comparator IC1 exports low level signal, and representative has smog generation；At this point, due to the second logic output terminal DO1 and resistance
R15 connection, so that triode Q3 is connected, the pole C of triode Q3 is connected by resistance R17 with the base stage of triode Q4, from
And triode Q4 is connected, the emitter of triode Q4 is connected with signal ground, so flame detection modules and microwave radar detection
The signal ground of module is connected, and the circuit of this 2 Sensor sections all normally starts work, if there is flame generates, the first logic
Output end DO1 will export low level, if someone or animal are walked about in the space of kindling, microwave radar detection module will
Low level is exported by third logic output terminal DO3.
First logic output terminal DO1, the second logic output terminal DO2 and third logic output terminal DO3 respectively represent smog, fire
Flame, microwave radar low level signal, the first analog output end AO1 export the detection signal for representing intensity of a fire size, every road signal
All (intelligent collection board belongs to the dedicated collection plate of the other Internet of Things of technical grade, including On-off signal end, master control with intelligent collection board
Chip and Internet of Things module, after collecting alarm signal, user or fireman can by cell phone application or computer terminal
The case where to obtain scene of fire) On-off signal end be connected, such intelligent collection board can learn the tool of scene of fire
Body situation is that only smog is generated there are also also there is situations such as flame generation and scene of fire are either with or without living person, according to collecting
Signal condition, make rescue deployment immediately, scene has living person's to take preferential relief rescue method.
It as shown in figs. 4-7, is the experimental result for LM393 comparator, in the present embodiment, first comparator IC1, second
Comparator IC2 and third comparator IC3 are all made of model LM393 comparator.Experiment one is as shown in figure 4, work as LM393 comparator
Reversed (cathode) input 2.5V voltage as the reference voltage, when positive (anode) input 1.25V voltage, the low electricity of comparator output
Flat (LED is bright)；Obtained conclusion are as follows: when using cathode as reference voltage, when positive input voltage is lower than the reference voltage of cathode,
Comparator exports low level.
Experiment two is as shown in figure 5, reversed (cathode) when LM393 comparator inputs 2.5V voltage as the reference voltage, just
When inputting 3V voltage to (anode), comparator exports high level (LED goes out)；Obtained conclusion are as follows: when using cathode as reference voltage
When, when positive input voltage is higher than the reference voltage of cathode, comparator exports high level.
As shown in fig. 6, the forward direction (anode) when comparator inputs 2.5V voltage as the reference voltage, negative sense is (negative for experiment three
Pole) input 1.25V voltage when, comparator export high level (LED goes out).Obtained conclusion are as follows: when with just extremely reference voltage,
When positive input voltage is higher than the reference voltage of cathode, comparator exports high level.
Experiment four is as shown in fig. 7, forward direction (anode) the input 2.5V voltage for working as comparator as the reference voltage, reversely (is born
Pole) input 3V voltage when, comparator export low level (LED is bright).Obtained conclusion are as follows: when with just extremely reference voltage, just
When pole input voltage is lower than the reference voltage of cathode, comparator exports low level.
By above-mentioned experiment it is found that cigarette sense adjusts circuit 4, fire defector adjusts circuit 5 and microwave radar detection adjusts circuit 6
Adjustment effect where, i.e., setting one smokescope/intensity of a fire size/microwave radar detection distance, as long as detection range with
Interior, LM393 comparator can only export a result (low level or high level).
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of fire detector, output end is electrically connected with industrial intelligent collection plate or industrial alarm, the fire detection
Device includes detection circuit, it is characterised in that: the detection circuit includes power module, cigarette sense module, flame detection modules, microwave
Radar Detection module and switch module, the power module and cigarette sense module, flame detection modules, microwave radar detection module and
Switch module is electrically connected, for providing electric energy for it；The output end of the cigarette sense module is the second logic output terminal DO2,
And the output end of the cigarette sense module and the input terminal of switch module are electrical connected, connection and pass for control switch module
Disconnected, output end and the flame detection modules and microwave radar detection module of the switch module are electrical connected, for controlling flame
The connection of detection module and microwave radar detection module；The output end of the flame detection modules is the first logic output terminal DO1,
The output end of the microwave radar detection module is third logic output terminal DO3.
2. a kind of fire detector according to claim 1, it is characterised in that: the cigarette sense module includes smog sensing
Device, first comparator IC1, cigarette sense adjust circuit and smoke-sensing switch indicating circuit, the output end of the smoke sensor device and first
The reverse input end of comparator IC1 is electrical connected, and the cigarette sense adjusts circuit and the non-inverting input terminal of first comparator IC1 is electrical
It is connected, for adjusting the detection range of smoke sensor device, the output end of the first comparator IC1 indicates electricity by smoke-sensing switch
Lu Yuqi power end is electrical connected, and the smoke-sensing switch indicating circuit includes resistance R10 and Light-emitting diode LED 1, is used to indicate
The working condition of cigarette sense module.
3. a kind of fire detector according to claim 1, it is characterised in that: the flame detection modules include infrared connect
Closed tube, fire defector power indicating circuit, fire defector switch indicating circuit, the second comparator IC2 and fire defector adjust electricity
Road, the output end of the infrared receiving tube and the noninverting input of the second comparator IC2 are electrical connected, and the fire defector is adjusted
The reverse input end of circuit and the second comparator IC2 is electrical connected, for the reverse input end voltage to the second comparator IC2 into
Row fine tuning, the output end of the second comparator IC2 switch indicating circuit by fire defector and are electrical connected with its power end, institute
Stating fire defector switch indicating circuit includes resistance R13, R14 and Light-emitting diode LED 3, is used to indicate flame detection modules
Working condition；
The fire defector power indicating circuit includes capacitor C11, resistance R11 and Light-emitting diode LED 2, the resistance R11 and
It is connected in parallel after the series connection of second light emitting diode with capacitor C11, one end of the capacitor C11 and the output end of power module are electrical
It is connected, the output end of the other end and switch module is electrical connected, and the fire defector power indicating circuit is used to indicate flame inspection
Survey the power supply state of module；The output end of the infrared receiving tube draws the first analog output end AO1.
4. a kind of fire detector according to claim 1, it is characterised in that: the microwave radar detection module includes micro-
The output end of wave movable sensor, microwave radar power indicating circuit and third comparator IC3, the microwave motion sensor are logical
It crosses conversion adjusting circuit to be connected with the input terminal of third comparator IC3, it includes microwave radar detection tune that the conversion, which adjusts circuit,
Economize on electricity road, for being adjusted to detections of radar range；The output end of the third comparator IC3 is referred to by microwave radar power supply
Show that circuit is electrical connected with its power end, the microwave radar power indicating circuit includes resistance R100 and light emitting diode
LED4 is used to indicate the working condition of microwave radar detection module.
5. a kind of fire detector according to claim 1, it is characterised in that: the switch module include triode Q3 and
Triode Q4, the emitter of the triode Q3 are connected with power module, and the base stage of the triode Q3 by resistance R15 with
Second logic output terminal DO2 is connected, and the collector of triode Q3 is connected by resistance R17 with the base stage of triode Q4, and three poles
The collector of pipe Q3 is connected by resistance R18 with the emitter of triode Q4；
The collector of the triode Q4 passes through resistance R16 and flame detection modules and the signal ground of microwave radar detection module electricity
Property be connected, for controlling turning on and off for flame detection modules and microwave radar detection module for power supply circuit.
6. a kind of fire detector according to claim 1, it is characterised in that: the power module turns 12V/ using 24V
5V module, the external 24V DC power anode of the direct-flow input end DC-IN of the power module, the signal ground terminal GND of power module
External 24V DC power cathode, and the signal ground terminal GND of power module is connected with the signal ground of cigarette sense module；
The power module includes direct current 5V output end and direct current 12V output end, and the direct current 5V output end and cigarette sense module
It is electrical connected with the power end of flame detection modules；The direct current 12V output end of the power module passes through resistance R101 and three
Pole pipe Q1 is connected with the power end of microwave radar detection module, and direct current 5V output end passes through the base of diode D11 and triode Q1
Extremely it is connected.
7. a kind of fire detector according to claim 1, it is characterised in that: the industrial intelligent collection plate includes simulation
Measure input terminal, On-off signal end, main control chip and Internet of Things module, first mould at the analog input end and detection circuit
Analog quantity output terminals A O1 is connected, the first logic output terminal DO1 of the On-off signal end and detection circuit, the output of the second logic
DO2, third logic output terminal DO3 is held to be connected, analog input end and On-off signal end are electrical connected with main control chip, are used for
Warning message is sent to industrial intelligent collection plate to be analyzed and processed, main control chip and Internet of Things module are electrical connected, master control
Chip is used to carry out handling to warning message and processed warning message is sent to cell phone application or electricity by Internet of Things module
Brain terminal.
8. a kind of fire the condition of a disaster detection method based on fire detector described in any one of claim 1-7, feature
It is:
Detection method includes the following steps for the fire the condition of a disaster:
S1: live smokescope information is obtained；
S2: live smokescope information is compared with standard smokescope value；
S3: if live smokescope information is less than or equal to standard smokescope value, without the intensity of a fire to scene and there is non-activity
People the case where detect；
S4: it if live smokescope information is greater than standard smokescope value, needs to obtain the intensity of a fire at scene and has non-activity
People information；
S5: live smokescope information, the intensity of a fire information at scene and the information for having inert people are sent to industrial intelligent and adopted
Collect plate, which is sent to mobile phone terminal or computer terminal by network by industrial intelligent collection plate.
9. the fire the condition of a disaster detection method of fire detector according to claim 8, it is characterised in that: step S4 application is more
The general microwave induced module of Le has the case where inert people to detect at scene.
10. the fire the condition of a disaster detection method of fire detector according to claim 8, it is characterised in that: step S4 application
Infrared receiving tube detects the intensity of a fire situation at scene.
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Application publication date: 20190712 |