CN103839360A - Fire alarm control system based on single chip microcomputer - Google Patents
Fire alarm control system based on single chip microcomputer Download PDFInfo
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- CN103839360A CN103839360A CN201210485153.0A CN201210485153A CN103839360A CN 103839360 A CN103839360 A CN 103839360A CN 201210485153 A CN201210485153 A CN 201210485153A CN 103839360 A CN103839360 A CN 103839360A
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Abstract
The invention discloses a fire alarm control system based on a single chip microcomputer. The fire alarm control system comprises a fire detector for detecting an environment fire signal, an amplifying circuit connected with the fire detector, a single chip microcomputer connected with the amplifying circuit and a power module. The single chip microcomputer is in serial communication with an upper computer through a serial port communication module. The input end of the single chip microcomputer is connected with a clock circuit for providing a time reference for the single chip microcomputer, a reset circuit for realizing the system reset function and keys for performing setting on the system and realizing the input function. The output end of the single chip microcomputer is connected with a state indicating lamp for indicating that the system is in the alarm or failure state, an audible alarm circuit for giving an alarm when the system is in the alarm or failure state and a display module for circularly displaying the environment temperature and smoke concentration detected by the fire detector. The fire alarm control system based on a single chip microcomputer has advantages of high reliability and good utilization effect, and can be used to find the fire timely to avoid the spread of the fire.
Description
Technical field
The present invention relates to a kind of fire alarm control system, particularly relate to a kind of SCM Based fire alarm control system.
Background technology
Along with developing rapidly of China's economic construction, living standards of the people improve constantly, and urban land growing tension impels buildings just towards high stratification, densification future development.The feature of skyscraper determines the importance of the danger of its fire and the automatic fire alarm system of skyscraper, the favourable guarantee of people's lives and properties when a set of complete automatic fire alarm system is high-rise building with fire disaster, be to find rapidly and accurately the condition of a fire, fire is put out to the key point in bud.In recent years, along with the use of electronic product in human lives is more and more extensive, the fire causing is thus also more and more, at our the life surrounding disaster hidden-trouble that lies dormant everywhere.In China, the research of an automatic equipment which can report a fire, production and application are started late, and develop slower.Along with the continuous reinforcement that develops and consume work rapidly of China's modernization construction, the production of an automatic equipment which can report a fire and application have had larger development.But the intelligent Application of automatic fire alarm system is compared compared with some developed countries, and we also exist a certain distance, be therefore a very important problem to the further investigation of automatic fire alarm system.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, a kind of SCM Based fire alarm control system is provided.The reliability of this SCM Based fire alarm control system is high, and result of use is good, can find in time fire, avoids spreading of the condition of a disaster, its reasonable in design, and stable performance, easy to use, cheap, intellectuality, is convenient to promote the use of.
For achieving the above object, the technical solution used in the present invention is: a kind of SCM Based fire alarm control system, it is characterized in that: comprise the fire detector for detection of environment fire signal, join and amplify for the ambient temperature signal to fire detector output and smokescope signal the amplifying circuit of processing with fire detector, the single-chip microcomputer joining with amplifying circuit and the power module of powering for each electricity consumption module in native system, described single-chip microcomputer carries out serial communication by serial communication modular and host computer, the input end of described single-chip microcomputer is connected to the clock circuit that is used to single-chip microcomputer that time reference is provided, for realizing the reset circuit of system reset function and for the button to for system being arranged and realized input function, the output terminal of described single-chip microcomputer is connected to the status indicator lamp of the system of being used to indicate in warning or malfunction, for the audible alarm circuit in reporting to the police or report to the police when malfunction and show environment temperature that fire detector detects for circulating and the display module of smokescope in system, described single-chip microcomputer adopts STC12C5A16S2, described reset circuit adopts button high level to reset.
The SCM Based fire alarm control system of above-mentioned one, is characterized in that: described display module comprises 12864 liquid crystal displays.
The SCM Based fire alarm control system of above-mentioned one, is characterized in that: the operational amplifier in described amplifying circuit adopts LM324.
The SCM Based fire alarm control system of above-mentioned one, is characterized in that: described status indicator lamp adopts LED light emitting diode.
The SCM Based fire alarm control system of above-mentioned one, is characterized in that: the three-terminal voltage-stabilizing chip in described power circuit adopts LM7805 chip.
The SCM Based fire alarm control system of above-mentioned one, is characterized in that: described button adopts 4 × 4 matrix keyboards.
The SCM Based fire alarm control system of above-mentioned one, is characterized in that: described clock circuit adopts 12MHz crystal oscillator and two 30pF electric capacity couplings.
The SCM Based fire alarm control system of above-mentioned one, is characterized in that: the level transferring chip in described serial communication modular adopts MAX232 chip.
The present invention compared with prior art has the following advantages:
1, reasonable in design: the present invention includes power circuit, clock circuit, reset circuit, button, serial communication modular, single-chip microcomputer, status indicator lamp, audible alarm circuit, display module and amplifying circuit, reasonable in design.
2, real-time is high: the present invention can realize little electric current, the effective and safe control of weak signal to high voltage, large electric current.
3, safe and reliable: the present invention uses amplifying device to amplify the faint simulating signal of input on hardware, has adopted rational control algolithm on software, has effectively improved the safe reliability of system.
4, advanced technology: the present invention uses STC12C5A16S2 single-chip microcomputer, has realized man-machine interaction easily and remote control function, is FA technically.
5, easy to use: interface operation of the present invention is very simple, can be easy to learn, therefore very easy to use.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Brief description of the drawings
Fig. 1 is schematic block circuit diagram of the present invention.
Description of reference numerals:
1-single-chip microcomputer; 2-status indicator lamp; 3-audible alarm circuit;
4-display module; 5-amplifying circuit; 6-fire detector;
7-button; 8-reset circuit; 9-clock circuit;
10-power circuit; 11-serial communication modular; 12-host computer.
Embodiment
The SCM Based fire alarm control system of one as shown in Figure 1, comprise the fire detector 6 for detection of environment fire signal, join and amplify for ambient temperature signal and smokescope signal that fire detector 6 is exported the amplifying circuit 5 of processing with fire detector 6, the single-chip microcomputer 1 joining with amplifying circuit 5 and the power module 10 of powering for each electricity consumption module in native system, described single-chip microcomputer 1 carries out serial communication by serial communication modular 11 and host computer 12, the input end of described single-chip microcomputer 1 is connected to the clock circuit 9 that is used to single-chip microcomputer 1 that time reference is provided, for realizing the reset circuit 8 of system reset function and for the button 7 to for system being arranged and realized input function, the output terminal of described single-chip microcomputer 1 is connected to the status indicator lamp 2 of the system of being used to indicate in warning or malfunction, for the audible alarm circuit 3 in reporting to the police or report to the police when malfunction and show environment temperature that fire detector 6 detects for circulating and the display module 4 of smokescope in system, described single-chip microcomputer 1 adopts STC12C5A16S2, described reset circuit 8 adopts button high level to reset.
In the present embodiment, described display module 4 comprises 12864 liquid crystal displays.Operational amplifier in described amplifying circuit 5 adopts LM324.Described status indicator lamp 2 adopts LED light emitting diode.Three-terminal voltage-stabilizing chip in described power circuit 10 adopts LM7805 chip.Described button 7 adopts 4 × 4 matrix keyboards.Described clock circuit 9 adopts 12MHz crystal oscillator and two 30pF electric capacity couplings.Level transferring chip in described serial communication modular 11 adopts MAX232 chip.
In the present embodiment, clock circuit 9 is for system provides time reference, and reset circuit 8 is realized system button high level reset function, single-chip microcomputer 1 at ordinary times reset terminal be low level.Button 7 is realized the setting to system necessity, as the setting of the concentration of reporting to the police, the inquiry of fault or fire alarm etc., serial communication modular 11 is by RS232 bus, user can realize Long-distance Control to this control system, can realize the alarming value setting to this control system, the functions such as the inquiry of fault or fire alarm information by host computer 12, system is easy and simple to handle, and automaticity is high, expansion is convenient and have good human-computer interaction function.Single-chip microcomputer 1 adopts powerful STC12C5A16S2 chip, it is a low-power consumption, 8 single-chip microcomputers of high performance CMOS, abundant I/O resource has facilitated further expanding of system, 10, the 8 tunnel ADC conversion that inside carries, can be easily to detecting to such an extent that simulating signal is changed, simplify circuit, the solution of high performance-price ratio is provided for controlling application system.Status indicator lamp 2 can be distinguished normal, fault, the State of alarm of display system, facilitates reminding user to take appropriate measures as early as possible according to indication information.Audible alarm circuit 3 exceedes while setting warning concentration, temperature value and drives loudspeaker to send the chimes of doom that pipes when this control system monitors.Display module 4 adopts the monitor signal of 12864 liquid crystal display circulation display systems, and in the time that fault or fire alarm occur display alarm or failure message, and can inquire about fault or fire alarm information.The output signal of fire detector 6 is weak current signals, is transformed to after voltage signal, also will just become the needed 0-5V standard analog of single-chip microcomputer 1 input signal through the processing of one-level amplifying circuit 5.The input resistance of the 300K adopting in amplifying circuit 5, has effectively prevented that voltge surge from disturbing the infringement that logical operation circuit is caused, and has limited input current simultaneously, has reduced the distortion level of sensor signal.
Because fire alarm is essential, require fire alarm control system to be perfectly safe reliably.In the design of fire alarm control system, single-chip microcomputer 1 is its core devices.It will receive temperature, smoke signal and the fault detection signal from fire detector 6 on the one hand, to process respectively these two kinds of signals on the other hand, move accordingly to control follow-up circuit, as started fire alarm signal or starting self-extinguishing equipment and fire protection linkage control etc. by automatic fire control fire control unit; The request that meanwhile whether inquiry has key to press.Complete in the process of these work at single-chip microcomputer 1, especially during signal is processed, relatively after concentration value, send into the software of demonstration and realize more complicated, require single-chip microcomputer 1 to possess arithmetic speed faster, make testing staff can observe more accurately smokescope, and according to circumstances process accordingly.And also to consider to select the type of use at a low price, and prepare with a series of low-power consumption product for developing.So it is more rational that the present invention selects the high single-chip microcomputer of a like this cost performance of STC12C5A16S2.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification, change and equivalent structure transformation of above embodiment being done according to the technology of the present invention essence, all still belongs in the protection domain of technical solution of the present invention.
Claims (8)
1. a SCM Based fire alarm control system, it is characterized in that: comprise the fire detector (6) for detection of environment fire signal, join and amplify for the ambient temperature signal to fire detector (6) output and smokescope signal the amplifying circuit (5) of processing with fire detector (6), the single-chip microcomputer (1) joining with amplifying circuit (5) and the power module (10) of powering for each electricity consumption module in native system, described single-chip microcomputer (1) carries out serial communication by serial communication modular (11) and host computer (12), the input end of described single-chip microcomputer (1) is connected to the clock circuit (9) that is used to single-chip microcomputer (1) that time reference is provided, for realizing the reset circuit (8) of system reset function and for the button (7) to for system being arranged and realized input function, the output terminal of described single-chip microcomputer (1) is connected to the status indicator lamp (2) of the system of being used to indicate in warning or malfunction, for the audible alarm circuit (3) in reporting to the police or report to the police when malfunction and show environment temperature that fire detector (6) detects for circulating and the display module (4) of smokescope in system, described single-chip microcomputer (1) adopts STC12C5A16S2, described reset circuit (8) adopts button high level to reset.
2. the SCM Based fire alarm control system of one according to claim 1, is characterized in that: described display module (4) comprises 12864 liquid crystal displays.
3. the SCM Based fire alarm control system of one according to claim 1, is characterized in that: the operational amplifier in described amplifying circuit (5) adopts LM324.
4. the SCM Based fire alarm control system of one according to claim 1, is characterized in that: described status indicator lamp (2) adopts LED light emitting diode.
5. the SCM Based fire alarm control system of one according to claim 1, is characterized in that: the three-terminal voltage-stabilizing chip in described power circuit (10) adopts LM7805 chip.
6. the SCM Based fire alarm control system of one according to claim 1, is characterized in that: described button (7) adopts 4 × 4 matrix keyboards.
7. the SCM Based fire alarm control system of one according to claim 1, is characterized in that: described clock circuit (9) adopts 12MHz crystal oscillator and two 30pF electric capacity couplings.
8. the SCM Based fire alarm control system of one according to claim 1, is characterized in that: the level transferring chip in described serial communication modular (11) adopts MAX232 chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210485153.0A CN103839360A (en) | 2012-11-23 | 2012-11-23 | Fire alarm control system based on single chip microcomputer |
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| CN201210485153.0A CN103839360A (en) | 2012-11-23 | 2012-11-23 | Fire alarm control system based on single chip microcomputer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104809841A (en) * | 2015-01-28 | 2015-07-29 | 苏州市职业大学 | Wireless fire detection and alarm system based on singlechip microcomputer control |
| CN105682305A (en) * | 2016-04-07 | 2016-06-15 | 吉林建筑大学 | Green illumination and emergency lamp and control method thereof |
| CN107067623A (en) * | 2017-01-13 | 2017-08-18 | 袁林松 | A kind of centralized control system suitable for various fire alarm main frames |
| CN109481881A (en) * | 2018-11-21 | 2019-03-19 | 汇乐因斯福环保安全研究院（苏州）有限公司 | Spark detection and extinguishing means and spark detection extinguishing method for dust pipeline |
| CN110124237A (en) * | 2019-04-27 | 2019-08-16 | 广州市锋安消防工程有限公司 | Fire control system |
-
2012
- 2012-11-23 CN CN201210485153.0A patent/CN103839360A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104809841A (en) * | 2015-01-28 | 2015-07-29 | 苏州市职业大学 | Wireless fire detection and alarm system based on singlechip microcomputer control |
| CN105682305A (en) * | 2016-04-07 | 2016-06-15 | 吉林建筑大学 | Green illumination and emergency lamp and control method thereof |
| CN107067623A (en) * | 2017-01-13 | 2017-08-18 | 袁林松 | A kind of centralized control system suitable for various fire alarm main frames |
| CN109481881A (en) * | 2018-11-21 | 2019-03-19 | 汇乐因斯福环保安全研究院（苏州）有限公司 | Spark detection and extinguishing means and spark detection extinguishing method for dust pipeline |
| CN110124237A (en) * | 2019-04-27 | 2019-08-16 | 广州市锋安消防工程有限公司 | Fire control system |
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Application publication date: 20140604 |