CN105118217A - Control method of firefighting alarm - Google Patents
Control method of firefighting alarm Download PDFInfo
- Publication number
- CN105118217A CN105118217A CN201510438753.5A CN201510438753A CN105118217A CN 105118217 A CN105118217 A CN 105118217A CN 201510438753 A CN201510438753 A CN 201510438753A CN 105118217 A CN105118217 A CN 105118217A
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- Prior art keywords
- alarm
- module
- fire
- starting
- control method
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
-
- 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
Abstract
The invention discloses a control method of a firefighting alarm which can realize automatic alarm when a fire disaster happens. The control method comprises the steps of: 1, starting a system; 2, starting a smoke detector module and preheating a smoke sensor of the smoke detector module for 4 to 5 min; 3, starting a temperature detection module and detecting temperature through a digital temperature sensor of the temperature detection module; 4, reading smoke concentration values and ambient temperature values; 5, carrying out digital filtering on the read smoke concentration values and the read ambient temperature values if 10 times of reading are completed; 6, starting a yellow lamp of a lamp light alarm module for alarming when the smoke concentration values are greater than a limit value; 7, starting a red lamp of the lamp light alarm module for alarming and starting a sound alarm module for sounding an alarm when further detecting that the ambient temperature values are greater than a limit value on the basis of the step 6; 8, and displaying a position of the fire disaster on a display of a control center if the red lamp alarm and the sound alarm are sent out simultaneously.
Description
Technical field
The present invention relates to a kind of control method of fire protection warning device.
Background technology
Security against fire and our everyone security of the lives and property closely bound up, fire fighting device construction is also more and more subject to people's attention.At present, the fire control equipment generally used comprises flame snuffer, hydrant and break-in tool etc., and the emergency system of employing comprises fire alarm system, automatic sprinkler system, smoke control system, emergency evacuation system etc.Above-mentioned fire alarm system comprises fire detector, alarm button, alarm and controller, what wherein alarm button adopted usually is manual fire alarm call point, namely need manually to press and could realize reporting to the police, Problems existing cannot be reported to the police in the very first time of breaking out of fire, this can cause the delayed of crowd evacuation, and and then affects follow-up disaster relief work.
Summary of the invention
The invention is intended to provide the control method that can realize the fire protection warning device of automatic alarm when fire dangerous situation occurs.
The control method of the fire protection warning device in this programme,
The first step, system starts;
Second step, starts Smoke Detection module and makes the smoke transducer preheating 4-5min of Smoke Detection module;
3rd step, start-up temperature detection module, and the digital temperature sensor detected temperatures passing through temperature detecting module;
4th step, reads smokescope value and reads ambient temperature value;
5th step, if read 10 times, has then carried out digital filtering to the ambient temperature value read and smokescope value respectively;
6th step, if smokescope value is greater than limits value, then the amber light starting light warning module is reported to the police;
7th step, on the basis of the 6th step, detects that ambient temperature value is greater than limits value further, then start the red alarm of light warning module, starts audible alarm module simultaneously and gives the alarm;
8th step, if send red alarm and audible alarm simultaneously, then the display of the heart in the controlling shows fire the condition of a disaster position.
Beneficial effect of the present invention: 1. in the 5th step, the instantaneous value of the smokescope of the temperature under environment microcontroller being read for preventing external disturbance is excessive and cause system erroneous judgement fire dangerous situation to send warning, carries out digital filtering to the ambient temperature value read and smokescope value; 2. this control method not only can realize automatic alarm when fire dangerous situation occurs, and adopt two-stage type of alarm can guarantee the reliability of reporting to the police, if the smokescope under current environment exceedes limits value, so microcontroller prediction may have fire dangerous situation and control bright orange lamp and report to the police, if current smokescope exceedes limits value, and current environment temperature also exceedes limits value, microcontroller can be judged as having there occurs fire dangerous situation, microprocessor controls sends out a warning warning, starts audible alarm module simultaneously and gives the alarm.
Further, also comprise the 9th step, if send red alarm and audible alarm simultaneously, then self-starting fire-fighting circuit under the control of the micro-controller, when fire occurs, can realize the automatic connection of fire-fighting circuit, for fire fighter uses fire fighting device to provide safeguard in time.
Further, smoke transducer adopts multiple parallel way multiple spot to detect smokescope, and described digital temperature sensor adopts multiple parallel way multi-point temperature measurement, can realize the detection to multiple place simultaneously.
Further, in the 6th step, also comprise and start after amber light reports to the police, the display of the heart in the controlling shows the early warning position of fire dangerous situation, fire fighter can find contingent fire dangerous situation position as early as possible, takes effective preventive measure in time.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of fire protection warning device in embodiment.
Fig. 2 is the circuit diagram of the microcontroller of fire protection warning device, temperature detecting module and light warning module.
Fig. 3 is the circuit diagram of Smoke Detection module.
Fig. 4 is the circuit diagram of audible alarm module.
Fig. 5 is the schematic diagram of fire-fighting control circuit.
Fig. 6 is the program circuit schematic diagram of the control method embodiment of fire protection warning device of the present invention.
Embodiment
Below by embodiment, the present invention is further detailed explanation:
Fire protection warning device as shown in Figure 1, comprise microcontroller, temperature detecting module, Smoke Detection module, light warning module, audible alarm module and fire-fighting control circuit, temperature detecting module, Smoke Detection module, light warning module, audible alarm module and fire-fighting control circuit are electrically connected with microcontroller respectively.The temperature information detected and smokescope information are passed to microcontroller by temperature detecting module and Smoke Detection module respectively, microcontroller for controlling visual alarm and sound alarm equipment alarm, simultaneously for controlling the break-make of fire-fighting control circuit.
The circuit diagram of the microcontroller of fire protection warning device as shown in Figure 2, temperature detecting module and light warning module, the STC12C2052AD single-chip microcomputer of in-system programmable components selected by microcontroller, this single-chip microcomputer inside carries 8 tunnel 8 precision A/D converters, without the need to additional A/D change-over circuit, can hardware circuit be simplified, reduce production cost, and the work of this single-chip microcomputer Width funtion, antijamming capability is strong, can in power environment more lower stable work.
Temperature detecting module adopts digital temperature sensor DS18B20, the devices such as semiconductor Thermosensor, A/D converter, storer are integrated on circuit chip by this sensor, and its signal exports the digital value adopting the direct output temperature signal of unibus structure, the data transfer mode of this unibus adds the transmission range of signal, improve antijamming capability, temperature more accurately and reliably.And traditional semiconductor temperature sensor adopts the thermistor of negative temperature coefficient usually, its simulating signal exported has to pass through after A/D is converted to digital signal and could input single-chip microcomputer, therefore this temperature detecting module structure is more complicated, production cost is higher, and negative tempperature coefficient thermistor reliability is relatively poor.
Adopt multiple digital temperature sensor DS18B20 to be connected in parallel in bus structure and realize multiple spot distribution thermometric, the present embodiment preferably four.As shown in Figure 2, four digital temperature sensor DS18B20s and the equal common source VCC of STC12C2052AD single-chip microcomputer, pin 1 all ground connection of four digital temperature sensor DS18B20s, between four pins 2 of power supply VCC and four digital temperature sensor DS18B20, be connected to resistance R2, R3, R4 and R5, the output of four pins 2 of four digital temperature sensor DS18B20s accesses four input pins 16,17,18 and 19 of STC12C2052AD single-chip microcomputer respectively.
Pin X1 with X2 of STC12C2052AD single-chip microcomputer is connected external crystal-controlled oscillation, the GND pin ground connection of STC12C2052AD single-chip microcomputer, the RSD pin of STC12C2052AD single-chip microcomputer is connected to two resistance R1 in parallel and electric capacity C3, electric capacity C3 connect power supply VCC, resistance R1 ground connection.The output pin 2,3,6 of STC12C2052AD single-chip microcomputer connects the pin 12,11,14 of latch SN74LS595N, the pin VCC of latch SN74LS595N is all connected external power source VCC with pin 10, the pin GND of latch SN74LS595N and pin 13 all ground connection, the pin 15,1,2,3,4,5 of latch SN74LS595N connects the positive pole of six light emitting diodes respectively by resistance R9, R10, R11, R12, R13, R14, the equal ground connection of negative pole of six light emitting diodes.Six light emitting diodes described in the present embodiment, wherein three is the light emitting diode of Yellow light-emitting low temperature, three light emitting diodes for glowing.
As shown in Figure 3 be the circuit diagram of Smoke Detection module, Smoke Detection module adopts semiconductor smoke transducer MQ-2, semiconductor smoke transducer MQ-2 is all higher to the sensitivity of liquefied gas, propane, hydrogen, rock gas and other inflammable gass, semiconductor smoke transducer MQ-2 its conductivity in the environment of clean air is lower, along with the increase of combustable gas concentration in air ambient, the conductivity of semiconductor smoke transducer MQ-2, also along with increase, utilizes this characteristic can detect the concentration change information of inflammable gas in air easily.Semiconductor smoke transducer MQ-2 has good anti-interference, accurately can get rid of the interfere information of irritant non-combustible smog, and the stable performance that works long hours.The mode of multiple semiconductor smoke transducer MQ-2 parallel connection is adopted to realize detecting the smokescope of multiple spot, the present embodiment preferably four, the output of four semiconductor smoke transducer MQ-2 connects the input pin 13,12,11,10 of STC12C2052AD single-chip microcomputer respectively.
Be the circuit diagram of audible alarm module as shown in Figure 4, the output pin 9 of STC12C2052AD single-chip microcomputer connects the base stage of a triode Q1 by resistance R6, the grounded emitter of triode Q1, the collector of triode Q1 connects the positive pole of a diode D1, the circuit of this diode D1 is parallel with one first relay, and the negative pole of described diode D1 is all connected 12V power supply with the first relay.The contact K1 of described first relay and a loudspeaker in series.
The principle of work of audible alarm module is: under home, output pin 9 no signal of STC12C2052AD single-chip microcomputer exports, triode Q1 is in cut-off state, on first relay, no current flows through, the contact K1 of the first relay is in off-state, loudspeaker is not reported to the police, if detect that smokescope and temperature all exceed limit value by Smoke Detection module and temperature detecting module, then the output pin 9 of STC12C2052AD single-chip microcomputer outputs signal, make triode Q1 conducting, first relay obtains electric, the contact K1 adhesive of the first relay, loudspeaker sends alarm sound, prompting is reported to the police.
The schematic diagram of fire-fighting control circuit as shown in Figure 5, the output pin 8 of STC12C2052AD single-chip microcomputer connects the base stage of a triode Q2 by resistance R7, the grounded emitter of triode Q2, the collector of triode Q2 connects the positive pole of a diode D2, the circuit of this diode D2 is parallel with one second relay, and the negative pole of above-mentioned diode D2 is all connected 12V power supply with the second relay.The contact K2 of the second relay is connected on the loop of fire-fighting circuit.
The control method of fire protection warning device as shown in Figure 6, comprises the following steps:
The first step, system starts;
Second step, starts Smoke Detection module and makes the smoke transducer preheating 4-5min of Smoke Detection module, and in the present embodiment, smoke transducer adopts multiple parallel way multiple spot to detect smokescope;
3rd step, start-up temperature detection module, and the digital temperature sensor detected temperatures passing through temperature detecting module, in the present embodiment, digital temperature sensor adopts multiple parallel way multi-point temperature measurement;
4th step, reads smokescope value and reads ambient temperature value;
5th step, if read 10 times, has then carried out digital filtering to the ambient temperature value read and smokescope value respectively;
6th step, if smokescope value is greater than limits value, then the amber light starting light warning module is reported to the police, and the display of the heart in the controlling shows the early warning position of fire dangerous situation;
7th step, on the basis of the 6th step, detects that ambient temperature value is greater than limits value further, then start the red alarm of light warning module, starts audible alarm module simultaneously and gives the alarm;
8th step, if send red alarm and audible alarm simultaneously, then the display of the heart in the controlling shows fire the condition of a disaster position.
9th step, if send red alarm and audible alarm simultaneously, then self-starting fire-fighting circuit under the control of the micro-controller.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in instructions etc. record the content that may be used for explaining claim.
Claims (5)
1. the control method of fire protection warning device, is characterized in that, comprises the following steps:
The first step, system starts;
Second step, starts Smoke Detection module and makes the smoke transducer preheating 4-5min of Smoke Detection module;
3rd step, start-up temperature detection module, and the digital temperature sensor detected temperatures passing through temperature detecting module;
4th step, reads smokescope value and reads ambient temperature value;
5th step, if read 10 times, has then carried out digital filtering to the ambient temperature value read and smokescope value respectively;
6th step, if smokescope value is greater than limits value, then the amber light starting light warning module is reported to the police;
7th step, on the basis of the 6th step, detects that ambient temperature value is greater than limits value further, then start the red alarm of light warning module, starts audible alarm module simultaneously and gives the alarm;
8th step, if send red alarm and audible alarm simultaneously, then the display of the heart in the controlling shows fire the condition of a disaster position.
2. the control method of fire protection warning device according to claim 1, is characterized in that: also comprise the 9th step, if send red alarm and audible alarm simultaneously, then and self-starting fire-fighting circuit under the control of the micro-controller.
3. the control method of fire protection warning device according to claim 2, is characterized in that: described smoke transducer adopts multiple parallel way multiple spot to detect smokescope, and described digital temperature sensor adopts multiple parallel way multi-point temperature measurement.
4. the control method of fire protection warning device according to claim 3, is characterized in that: in the 6th step, also comprises and starts after amber light reports to the police, the display of the heart in the controlling shows the early warning position of fire dangerous situation.
5. the fire protection warning device of existing automatic alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510438753.5A CN105118217A (en) | 2015-07-24 | 2015-07-24 | Control method of firefighting alarm |
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| CN201510438753.5A CN105118217A (en) | 2015-07-24 | 2015-07-24 | Control method of firefighting alarm |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105788157A (en) * | 2016-03-30 | 2016-07-20 | 无锡蓝天电子股份有限公司 | Packet linkage method |
| CN107633636A (en) * | 2017-09-18 | 2018-01-26 | 郑州轻工业学院 | One kind automation fire alarm detecting system |
| CN109003354A (en) * | 2018-05-25 | 2018-12-14 | 淮南万泰电气有限公司 | A kind of substation's wisdom environmental management system |
| CN112402856A (en) * | 2020-10-22 | 2021-02-26 | 深圳市共济科技股份有限公司 | Fire control method, fire control device and intelligent terminal |
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| CN109003354B (en) * | 2018-05-25 | 2021-05-04 | 淮南万泰电气有限公司 | Intelligent environment management system for transformer substation |
| CN112402856A (en) * | 2020-10-22 | 2021-02-26 | 深圳市共济科技股份有限公司 | Fire control method, fire control device and intelligent terminal |
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Application publication date: 20151202 |
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| RJ01 | Rejection of invention patent application after publication |