CN105678942A - Intelligent fire alarm system and control method thereof - Google Patents
Intelligent fire alarm system and control method thereof Download PDFInfo
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- CN105678942A CN105678942A CN201610201778.8A CN201610201778A CN105678942A CN 105678942 A CN105678942 A CN 105678942A CN 201610201778 A CN201610201778 A CN 201610201778A CN 105678942 A CN105678942 A CN 105678942A
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Classifications
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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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
Abstract
The invention provides an intelligent fire alarm system and a control method thereof. The intelligent fire alarm system comprises a single-chip microcomputer control system, an AD conversion module, a smoke acquisition module, a temperature acquisition module, a water spray motor module, an LCD liquid crystal display module, a GSM module, a buzzer alarm module, a matrix keyboard module and a power supply module. The advantages are that the intelligent fire alarm system can automatically detect the concentration of smoke in the environment and environment temperature, and has the functions of sound-light alarm, short message prompting and water-spray fire extinguishing; and meanwhile, a user can set an alarm upper limit according to practical situations, so that the user is allowed to know the safety status of the environment in time through a mobile phone short message remote early warning mode. The system is simple in structure, stable in performance, convenient to use and low in cost and greatly reduces possibility of a severe fire disaster.
Description
Technical field
The present invention relates to Environmental security disaster alarm field, be specifically related to a kind of Intelligent fire alarm system applying gsm communication, sensor and single-chip microcomputer and control method thereof.
Background technology
The Ministry of Public Security of the People's Republic of China, MOPS provides data: the annual breaking out of fire 13.3 ten thousand in the whole nation in 2008, dead 1385 people, direct property loss 1,500,000,000 yuan, also lie dormant disaster hidden-trouble in our daily life everywhere, therefore carry out fire and alarm carry out corresponding counter-measure, just can reduce personal and property loss. At present, Intelligent fire alarm system has not been traditional simple alarm equipment, but incorporate and be integrated with each domain knowledges such as computer technology, electronic technology, automatic control technology, sensor application, believing the continuous progress along with science and technology, intelligentized fire alarm system will be developed faster.
Monolithic body has long-pending little, light weight, low price, low in energy consumption, extend advantage flexible and easy to use, it is widely used in instrument and meter, the conversion of the information to multiple measurement physical quantity can be realized by integrated various types of sensors and control, being realize the part that automatization is indispensable.
Gsm module is the terminal unit of GSM mobile handset another very important gsm mobile communication system outer of continuing. It is a kind of data terminal equipment that traditional modem combines with gsm wireless mobile communication system, therefore also referred to as radio modem. Its appearance is filled with new vitality to the development of GSM, changes traditional means of communication based on speech, opens the gate of GSM network data communication and application thereof. In general, the local great majority of every use modem can replace with gsm module. Due to gsm module by region, the impact of circuit, so based on this module, using GSM network as wireless-transmission network, it is possible to develop the types of applications that multiple prospect is extremely optimistic. The present invention adopt GSM message function, it is possible to make some control reach " zero distance ", due to the low cost of short message, therefore can direct substitution traditional wireless remote remote measurement, have broad application prospects.
Summary of the invention
For improving the safety of remote fire early warning and effectiveness, the present invention provide a kind of intelligence, simply, Intelligent fire alarm system and control method thereof easily.
The present invention is achieved through the following technical solutions: the feature of a kind of Intelligent fire alarm system and control method thereof includes: its composition includes single-chip computer control system, AD conversion module, smoke collection module, temperature collect module, water spray motor module, LCD LCD MODULE, gsm module, buzzer warning module, matrix keyboard module and power module.
1) described single-chip computer control system includes: the VCC of single-chip microcomputer STC89C52 pin 40 connects positive pole 5V, and the VSS of pin 20 connects power supply ground end.
2) described AD conversion module includes: chip ADC0832 carries out reception and the transmission of data by the P2.2 port of pin 5,6 connection single-chip microcomputer; Its pin 1 connects the P2.4 port of single-chip microcomputer, carries out chip select, opens A/D module during low level; Its pin 7 connects the P2.3 port of single-chip microcomputer; Pin 4 is directly grounded; Pin 8 is directly connected to power module.
3) described smoke collection module includes: the pin 2 that MQ-2 Smoke Sensor gives AD conversion module ADC0832 by pin 4,6 is AD converted, and its pin 1,3 is directly connected to power supply, and pin 5 passes through resistance eutral grounding.
4) described temperature collect module includes: the pin 1 of chip DS18B20 is directly grounded, and pin 3 is directly connected to power supply, and pin 2 connects the P2.3 port of a pull-up resistor and single-chip microcomputer STC89C52 and completes the pull-up to bus.
5) described water spray motor module includes: water spray motor is connected to the P3.7 port of single-chip microcomputer by the resistance of base stage one 2K of series winding of an audion.
6) described LCD LCD MODULE includes: the pin 1 of chip LCD1602 is directly grounded, pin 2 is directly connected to power supply, pin 3 connects ground connection after a resistance, pin 4,5,6 connects P2.7, P2.6, P2.5 port of single-chip microcomputer respectively, pin 7 is sequentially connected with P0.0 to the P0.7 port of single-chip microcomputer to pin 14, pin 15 is directly connected to power supply, and pin 16 is directly grounded.
7) described gsm module includes: chip TC35 is connected with the P3.0 port of single-chip microcomputer and P3.1 port respectively.
8) described buzzer warning module includes: be connected with the P3.2 port of single-chip microcomputer by transistor base one resistance of series winding.
9) described matrix keyboard module includes: be made up of 16 buttons, wherein 4 walks crosswise P14, P15, P16, P17 port connecing single-chip microcomputer respectively, and 4 perpendicular row connect P10, P11, P12, P13 port of single-chip microcomputer respectively.
10) described power module includes: output 5V DC voltage is powered to whole system.
The invention has the beneficial effects as follows:
1. a kind of Intelligent fire alarm system and control method thereof described in, use gsm communication module to be connected with single-chip microcomputer, it is achieved automatically sending SMS notification user, intelligence degree is high, it is not necessary to manual control.
2. described in, a kind of Intelligent fire alarm system and control method thereof, adopt sub-module method for designing, and whole device is readily disassembled and assembles.
3. a kind of Intelligent fire alarm system and control method thereof described in, the mode adopting sensor Real-time Collection field data and remote data transmission ensures the safety produced with living environment, avoid fire and explosion accident and the generation of carbon monoxide poisoning phenomenon, fire prevention, explosion-proof and safety in production in there is the wide market space and development prospect.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of Intelligent fire alarm system
Fig. 2 is system integrated circuit schematic diagram
Fig. 3 is single-chip minimum system schematic diagram
Fig. 4 is Smoke Sensor schematic diagram
Fig. 5 is AD conversion schematic diagram
Fig. 6 is temperature sensor schematic diagram
Fig. 7 is LCD displaying principle figure
Fig. 8 is buzzer alarm circuit schematic diagram
Fig. 9 is water spray motor circuit schematic diagram
Figure 10 is that gsm module communicates to connect schematic diagram with single-chip microcomputer 232
Figure 11 is matrix keyboard schematic diagram
Figure 12 is power interface circuit schematic diagram
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
As depicted in figs. 1 and 2, circuit of the present invention includes: single-chip minimum system is as the CPU module of whole system, ADC0832 modular converter, MQ-2 Smoke Sensor acquisition module, DS18B20 temperature collect module, water spray motor module, LCD1602 LCD MODULE, gsm module, buzzer warning module, matrix keyboard module and power interface circuit. Obtain combustable gas concentration in real time by MQ-2 Smoke Sensor, DS18B20 temperature sensor obtains scene of fire temperature, and by LCD1602 chip liquid crystal display data, then can complete sound and light alarm when concentration or temperature exceed limit value, GSM message is reminded and sprinkling fire function, it is easy to people and grasps the safe condition of environment in time, improve safety coefficient.
Constitute as it is shown on figure 3, the single-chip minimum system of mainboard includes single-chip microcomputer, reset circuit and clock circuit. In single-chip minimum system, single-chip microcomputer is STC89C52. The operating voltage range of STC89C52 single-chip microcomputer is 4V-5.5V, so generally giving single-chip microcomputer external world 5V DC source. The 40 foot VCC that connected mode is in single-chip microcomputer meet positive pole 5V, and 20 foot VSS hold with connecing power supply. The input of XTAL1 and XTAL2 respectively sign-changing amplifier and output, 18 feet, 19 feet are connected to oscillating circuit, and wherein crystal oscillator frequency is 11.0592MHz. When to single-chip microcomputer plus DC source needed for work, agitator begins to vibration. The purpose of oscillating circuit is the clock pulse signal needed for providing for single-chip microcomputer work. Wherein 18 feet and 19 feet have connect the electric capacity of 10 μ F respectively over the ground, it is therefore an objective to prevent single-chip microcomputer self-excitation. Simultaneously at the external reset circuit of 9 feet i.e. RST end, it is therefore an objective to making single-chip microcomputer power on when starting working, internal circuit is started working from original state. What native system adopted is external hand key reset circuit, it is necessary to connects pull-up resistor and improves the value of output high level.
As shown in Figure 4, MQ-2 Smoke Sensor is the N-type semiconductor gas sensor of the metal-oxide tin ash that electrical conductivity is relatively low in clean air. When there is aerosol gases in sensor local environment, the electrical conductivity of sensor increases with the increase of aerosol gases concentration in air. As long as using simple circuit that the change of electrical conductivity can be converted to the output signal corresponding with this gas concentration when designing alarm. The smokescope value of the MQ-2 Smoke Sensor collection site of this module is AD converted through 2 pins being given ADC0832 by 4,6 pins and obtains corresponding magnitude of voltage, and 1,3 feet are directly connected to power supply, and pin 5 passes through resistance eutral grounding.
As it is shown in figure 5, ADC0832 is 8 bit resolution A/D conversion chips, its best result is distinguished up to 256 grades, it is possible to adapt to general analog quantity conversion requirements. The multiplexing of the input of its internal electric source and reference voltage so that the analog voltage of chip inputs between 0-5V. The chip conversion time is only 32 μ s, can as data check according to there being Double Data to export, and to reduce error in data, conversion speed is fast and stability is strong. Independent chip enables input, makes the mounting of many devices convenient with what processor control became. By DI data input pin, it is possible to realize the selection of channel function easily. ADC0832 should be 4 data line with the interface of single-chip microcomputer under normal circumstances, is CS, CLK, DO, DI respectively. But due to DO end and DI end when communicating not effectively and be two-way with the interface of single-chip microcomputer simultaneously, use so DO and DI can be connected in parallel in a data lines during circuit design.ADC0832 module is carried out reception and the transmission of data by native system by the P2.2 port of 5,6 pins connection single-chip microcomputers; Its pin 1 connects the P2.4 port of single-chip microcomputer, carries out chip select, opens A/D module during low level; Its pin 7 connects the P2.3 port of single-chip microcomputer; Pin 4 is directly grounded; Pin 8 is directly connected to power supply.
As shown in Figure 6, by " 1-Wire " bus, (1-Wire is the digital signal bus agreement of a kind of uniqueness to the output of the digital temperature of DS18B20 temperature sensor, and unique power line and holding wire are combined with each other by it, only use a Tiaokou line; Each chip unique encodings, support networking addressing, zero-power wait etc., it is the minimum a kind of bus of necessary hardware line) mode of this uniqueness, it is possible to making multiple DS18B20 set up into sensor network easily, foundation and combination for whole measurement system provide bigger probability. In native system, the pin 1 of DS18B20 chip is directly grounded, and pin 3 is directly connected to power supply, and 2 pins connect the P2.3 port of a pull-up resistor and single-chip microcomputer STC89C52 and complete the pull-up to bus.
As it is shown in fig. 7, Intelligent fire alarm system starts alarm device by the higher limit of design temperature respectively and smog, namely need display module can show current temperature value and smog value in real time. LCD1602 refers to that the content of display is 16X2, namely can show two row, and 16 character liquid crystal modules of each row (display character and numeral) just meet the needs of design. Therefore in native system, display module adopts LCD1602 LCD MODULE. The pin 1 of LCD1602 chip of LCD is directly grounded; Pin 2 is directly connected to power supply; Pin 3 is that gray scale regulates pin, is about 0.5-1V, therefore needs to connect a resistance eutral grounding, obtain required voltage when gray scale is normal; Pin 4,5,6 connects P2.7, P2.6, P2.5 port of single-chip microcomputer respectively; Pin 7-pin 14 connects the P0.0-P0.7 port of single-chip microcomputer successively; Pin 15 is directly connected to power supply; Pin 16 is directly grounded.
As shown in Figure 8, buzzer alarm circuit is connected with single-chip microcomputer P3.2 port by transistor base one resistance of series winding, controls whether buzzer reports to the police by single-chip microcomputer to P3.2 low and high level.
As it is shown in figure 9, water spray motor circuit receives the P3.7 port of single-chip microcomputer by the resistance of base stage one 2K of series winding of an audion, by controlling unlatching and the stopping of water spray motor to P3.7 port low and high level.
As shown in Figure 10, native system adopts the gsm module TC35 module of new generation of the up-to-date release of Siemens, uses 232 level communications, the DB9COM head on single-chip microcomputer plate can be used to intersect with the DB9COM head in module and be connected to GND GND mode. Gsm module is connected with the P3.0 port of single-chip microcomputer and P3.1 port respectively, it is achieved the reception of data and transmission. The baseband processor of TC35 module is integrated with a SIM interface compatible with ISO7816-3ICCard standard. In order to be suitable for the SIM interface of outside, this interface is connected to main interface ((ZIF connector). TC35 has reserved 6 pins for SIM interface on ZIF connector, and the CCIN pin added is for detecting in SIM support whether be inserted with SIM. When inserting SIM, this pin is set to high level, and system is allowed for access normal operating conditions. But the SIM that mobile operator provides at present is all without CCIN pin, so when designing circuit, pin CCIN and CCVCC is connected.
As shown in figure 11, matrix keyboard is made up of 16 buttons, and 4 walk crosswise P14, P15, P16, P17 port connecing single-chip microcomputer respectively, and 4 perpendicular row connect P10, P11, P12, P13 port of single-chip microcomputer respectively.Wherein S2 is manual alarm key; S4 is for cancelling alarm keys; S5 is for arranging key; S9 is plus key; S13 arranges key for subtracting key S17 for exiting. Arrange under the interface of phone number at GSM: S2, S3, S4, S6, S7, S8, S10, S11, S12 and S15 be corresponding numeral 1-9 and 0 respectively; S16 is for deleting number button.
As shown in figure 12, the major function of power interface circuit is that output 5V DC voltage is powered to whole system, and wherein P1 is power interface.
Above-described embodiment is only for clearly demonstrating the implementation example that the present invention makees, and be not the restriction to embodiments of the present invention, for those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.
Claims (1)
1. the feature of an Intelligent fire alarm system and control method thereof includes: its composition includes single-chip computer control system, AD conversion module, smoke collection module, temperature collect module, water spray motor module, LCD LCD MODULE, gsm module, buzzer warning module, matrix keyboard module and power module;
1) described single-chip computer control system includes: the VCC of single-chip microcomputer STC89C52 pin 40 connects positive pole 5V, and the VSS of pin 20 connects power supply ground end;
2) described AD conversion module includes: chip ADC0832 carries out reception and the transmission of data by the P2.2 port of pin 5,6 connection single-chip microcomputer, pin 1 connects the P2.4 port of single-chip microcomputer, carry out chip select, A/D module is opened during low level, pin 7 connects the P2.3 port of single-chip microcomputer, pin 4 is directly grounded, and pin 8 is directly connected to power module;
3) described smoke collection module includes: the pin 2 that MQ-2 Smoke Sensor gives AD conversion module ADC0832 by pin 4,6 is AD converted, and pin 1,3 is directly connected to power supply, and pin 5 passes through resistance eutral grounding;
4) described temperature collect module includes: the pin 1 of chip DS18B20 is directly grounded, and pin 3 is directly connected to power supply, and pin 2 connects the P2.3 port of a pull-up resistor and single-chip microcomputer STC89C52 and completes the pull-up to bus;
5) described water spray motor module includes: water spray motor is connected to the P3.7 port of single-chip microcomputer by the resistance of base stage one 2K of series winding of an audion;
6) described LCD LCD MODULE includes: the pin 1 of chip LCD1602 is directly grounded, pin 2 is directly connected to power supply, pin 3 connects ground connection after a resistance, pin 4,5,6 connects P2.7, P2.6, P2.5 port of single-chip microcomputer respectively, pin 7 is sequentially connected with P0.0 to the P0.7 port of single-chip microcomputer to pin 14, pin 15 is directly connected to power supply, and pin 16 is directly grounded;
7) described gsm module includes: chip TC35 is connected with the P3.0 port of single-chip microcomputer and P3.1 port respectively;
8) described buzzer warning module includes: be connected with the P3.2 port of single-chip microcomputer by transistor base one resistance of series winding;
9) described matrix keyboard module includes: be made up of 16 buttons, wherein 4 walks crosswise P14, P15, P16, P17 port connecing single-chip microcomputer respectively, and 4 perpendicular row connect P10, P11, P12, P13 port of single-chip microcomputer respectively;
10) described power module includes: output 5V DC voltage is powered to whole system.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108694799A (en) * | 2018-07-06 | 2018-10-23 | 无锡众创未来科技应用有限公司 | Fire behavior alarm |
| CN108956878A (en) * | 2018-07-16 | 2018-12-07 | 江南大学 | Multifunctional vehicle mounted EMS |
| CN109240175A (en) * | 2018-11-01 | 2019-01-18 | 佛山市顺德区新迅电子科技有限公司 | A kind of single chip microcomputer driving circuit |
| CN109308786A (en) * | 2018-11-27 | 2019-02-05 | 南京铁道职业技术学院 | A kind of Source of Railway Communication and Signalling computer room fire alarm fire extinguishing system |
| CN109612114A (en) * | 2018-12-04 | 2019-04-12 | 朱朝峰 | Strange land equipment linkage system |
| CN109816916A (en) * | 2019-03-20 | 2019-05-28 | 武汉恒安数联电子科技有限公司 | Fire display panel circuit |
| CN109859434A (en) * | 2019-04-03 | 2019-06-07 | 中国安全生产科学研究院 | A kind of subway station ventilation smoke exhaust Optimal Control System and method |
| CN109979153A (en) * | 2019-04-15 | 2019-07-05 | 电子科技大学中山学院 | Multifunctional wireless fire alarm device |
| CN110264675A (en) * | 2019-05-06 | 2019-09-20 | 西安建筑科技大学 | The control system that toxic gas is remotely monitored and alarmed in a kind of building construction |
| CN110517437A (en) * | 2019-09-16 | 2019-11-29 | 西安航空学院 | A kind of computer Internet of Things fire early-warning system |
| CN112843534A (en) * | 2021-01-11 | 2021-05-28 | 安徽工程大学 | Electric intelligent fire-fighting system |
| CN117563185A (en) * | 2024-01-15 | 2024-02-20 | 南京斯夫特安全工程有限公司 | Remote monitoring and alarming system of automatic fire extinguishing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108694799A (en) * | 2018-07-06 | 2018-10-23 | 无锡众创未来科技应用有限公司 | Fire behavior alarm |
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| CN109859434A (en) * | 2019-04-03 | 2019-06-07 | 中国安全生产科学研究院 | A kind of subway station ventilation smoke exhaust Optimal Control System and method |
| CN109979153A (en) * | 2019-04-15 | 2019-07-05 | 电子科技大学中山学院 | Multifunctional wireless fire alarm device |
| CN110264675A (en) * | 2019-05-06 | 2019-09-20 | 西安建筑科技大学 | The control system that toxic gas is remotely monitored and alarmed in a kind of building construction |
| CN110517437A (en) * | 2019-09-16 | 2019-11-29 | 西安航空学院 | A kind of computer Internet of Things fire early-warning system |
| CN112843534A (en) * | 2021-01-11 | 2021-05-28 | 安徽工程大学 | Electric intelligent fire-fighting system |
| CN117563185A (en) * | 2024-01-15 | 2024-02-20 | 南京斯夫特安全工程有限公司 | Remote monitoring and alarming system of automatic fire extinguishing device |
| CN117563185B (en) * | 2024-01-15 | 2024-03-19 | 南京斯夫特安全工程有限公司 | Remote monitoring and alarming system of automatic fire extinguishing device |
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Application publication date: 20160615 |