CN205121822U - Security against fire alarm control system - Google Patents
Security against fire alarm control system Download PDFInfo
- Publication number
- CN205121822U CN205121822U CN201520956468.8U CN201520956468U CN205121822U CN 205121822 U CN205121822 U CN 205121822U CN 201520956468 U CN201520956468 U CN 201520956468U CN 205121822 U CN205121822 U CN 205121822U
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- China
- Prior art keywords
- module
- resistance
- amplifier
- control system
- fire alarm
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Abstract
The utility model discloses a security against fire alarm control system, including controller, carbon monoxide transducer, AD converter, sampling holder, analog quantity transform module, warning lamp module piece and photoelectric isolation module, AD converter, wireless communication module, photoelectric isolation module, warning lamp module piece, buzzer module and button module are connected respectively to the controller, and photoelectric isolation module still connects exhaust equipment through the relay, the AD converter still connects gradually sampling holder, analog quantity transform module and carbon monoxide transducer. The utility model discloses security against fire alarm control system send the entry control ware after can handling the signal that carbon monoxide transducer detected again, and circuit structure is simple, and is with low costs, small, and life -span of use that can the greatly increased system, stability is high.
Description
Technical field
The utility model relates to a kind of control system, specifically a kind of security against fire alarm control system.
Background technology
Specify according to existing security against fire, fire alarm system is the basic fire fighting device of buildings indispensability, and arranging fire alarm system can effectively prevent the generation of fire and spread, and plays the vital role of protection people life property safety.
And in the family, coal gas uses very general, and containing a large amount of carbon monoxide in coal gas, once gas leak, be very easy to blasting property fire.
CO alarm is all equipped with in existing a lot of home-use security against fire alarm, but most CO alarm is all very simple for the process of CO detection signal, directly the detection signal of sensor is sent in controller, the problem causing accuracy of detection lower on the one hand, also make system stability low on the other hand, serviceable life is short.
Utility model content
The purpose of this utility model is to provide a kind of security against fire alarm control system, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of security against fire alarm control system, comprise controller, carbon monoxide transducer, A/D converter, sampling holder, analogue transformation module, warning lamp module and photoelectric isolation module, described controller connects A/D converter, wireless communication module, photoelectric isolation module, warning lamp module, hummer module and key-press module respectively, photoelectric isolation module also connects exhaust equipment by relay, and described A/D converter also connects sampling holder, analogue transformation module and carbon monoxide transducer successively.
As further program of the utility model: described analogue transformation module comprises resistance R1, potentiometer RP1, amplifier U1 and amplifier U1, resistance R1 one end connects power supply VCC and amplifier U1 earth terminal respectively, the resistance R1 other end connects diode D1 negative pole and potentiometer RP1 one end respectively, the potentiometer RP1 other end connects diode D1 positive pole and amplifier U1 earth terminal and ground connection respectively, amplifier U1 output terminal connects amplifier U1 end of oppisite phase and resistance R5 respectively, the resistance R5 other end connects amplifier U2 end of oppisite phase and resistance R4 respectively, the resistance R4 other end connects output end vo and amplifier U2 output terminal respectively, amplifier U2 in-phase end contact resistance R3, the resistance R3 other end connects input end Vi and stake resistance R2 respectively.
As further program of the utility model: described controller adopts AT89C51 single-chip microcomputer.
As the utility model further scheme: described A/D converter adopts AD574A.
Compared with prior art, the beneficial effects of the utility model are: send into controller again after the signal that the utility model security against fire alarm control system can detect carbon monoxide transducer processes, circuit structure is simple, cost is low, volume is little, greatly can increase the life-span of the use of system, stability is high.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of security against fire alarm control system;
Fig. 2 is the circuit diagram of analogue transformation module in security against fire alarm control system.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 ~ 2, in the utility model embodiment, a kind of security against fire alarm control system, comprise controller, carbon monoxide transducer, A/D converter, sampling holder, analogue transformation module, warning lamp module and photoelectric isolation module, described controller connects A/D converter, wireless communication module, photoelectric isolation module, warning lamp module, hummer module and key-press module respectively, photoelectric isolation module also connects exhaust equipment by relay, and described A/D converter also connects sampling holder, analogue transformation module and carbon monoxide transducer successively.
Described analogue transformation module comprises resistance R1, potentiometer RP1, amplifier U1 and amplifier U1, resistance R1 one end connects power supply VCC and amplifier U1 earth terminal respectively, the resistance R1 other end connects diode D1 negative pole and potentiometer RP1 one end respectively, the potentiometer RP1 other end connects diode D1 positive pole and amplifier U1 earth terminal and ground connection respectively, amplifier U1 output terminal connects amplifier U1 end of oppisite phase and resistance R5 respectively, the resistance R5 other end connects amplifier U2 end of oppisite phase and resistance R4 respectively, the resistance R4 other end connects output end vo and amplifier U2 output terminal respectively, amplifier U2 in-phase end contact resistance R3, the resistance R3 other end connects input end Vi and stake resistance R2 respectively.
Described controller adopts AT89C51 single-chip microcomputer.
Described A/D converter adopts AD574A.
Principle of work of the present utility model is: refer to Fig. 1, induction CO signals is passed to analogue transformation module by carbon monoxide transducer, CO signals is converted to large voltage signal by analogue transformation module, and then successively through sampling holder and A/D converter, send into controller.When carbonomonoxide concentration exceeds standard, controller controls warning lamp module and sends warning light, controls hummer module and sends chimes of doom, and opened by photoelectric isolation module and Control exhaust equipment, wireless communication module gives the alarm to remote terminal; Shutdown system time key-press module is used for occurring wrong report again.
Refer to Fig. 2, CO signals inputs from Vi by carbon monoxide transducer, by amplifier U1 and amplifier U2 collaborative work, current signal is become large voltage signal and exports from U2 output terminal.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (4)
1. a security against fire alarm control system, comprise controller, carbon monoxide transducer, A/D converter, sampling holder, analogue transformation module, warning lamp module and photoelectric isolation module, it is characterized in that, described controller connects A/D converter, wireless communication module, photoelectric isolation module, warning lamp module, hummer module and key-press module respectively, photoelectric isolation module also connects exhaust equipment by relay, and described A/D converter also connects sampling holder, analogue transformation module and carbon monoxide transducer successively.
2. security against fire alarm control system according to claim 1, it is characterized in that, described analogue transformation module comprises resistance R1, potentiometer RP1, amplifier U1 and amplifier U1, resistance R1 one end connects power supply VCC and amplifier U1 earth terminal respectively, the resistance R1 other end connects diode D1 negative pole and potentiometer RP1 one end respectively, the potentiometer RP1 other end connects diode D1 positive pole and amplifier U1 earth terminal and ground connection respectively, amplifier U1 output terminal connects amplifier U1 end of oppisite phase and resistance R5 respectively, the resistance R5 other end connects amplifier U2 end of oppisite phase and resistance R4 respectively, the resistance R4 other end connects output end vo and amplifier U2 output terminal respectively, amplifier U2 in-phase end contact resistance R3, the resistance R3 other end connects input end Vi and stake resistance R2 respectively.
3. security against fire alarm control system according to claim 1, is characterized in that, described controller adopts AT89C51 single-chip microcomputer.
4. security against fire alarm control system according to claim 1, is characterized in that, described A/D converter adopts AD574A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956468.8U CN205121822U (en) | 2015-11-26 | 2015-11-26 | Security against fire alarm control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520956468.8U CN205121822U (en) | 2015-11-26 | 2015-11-26 | Security against fire alarm control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205121822U true CN205121822U (en) | 2016-03-30 |
Family
ID=55577408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520956468.8U Expired - Fee Related CN205121822U (en) | 2015-11-26 | 2015-11-26 | Security against fire alarm control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205121822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107730840A (en) * | 2017-11-30 | 2018-02-23 | 苏州汇恒网络科技有限公司 | A kind of smart security guard and alarm control system |
-
2015
- 2015-11-26 CN CN201520956468.8U patent/CN205121822U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107730840A (en) * | 2017-11-30 | 2018-02-23 | 苏州汇恒网络科技有限公司 | A kind of smart security guard and alarm control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20161126 |