CN109215282A - A kind of Along Railway signal of communication computer room smoke detection warning circuit - Google Patents
A kind of Along Railway signal of communication computer room smoke detection warning circuit Download PDFInfo
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- CN109215282A CN109215282A CN201710514162.0A CN201710514162A CN109215282A CN 109215282 A CN109215282 A CN 109215282A CN 201710514162 A CN201710514162 A CN 201710514162A CN 109215282 A CN109215282 A CN 109215282A
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- resistance
- warning circuit
- comparator
- sensor device
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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
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire Alarms (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses a kind of Along Railway signal of communication computer room smoke detection warning circuits, including smoke sensor device MQ-2, resistance R1, resistance R2, adjustable resistance R3, comparator U1 and warning circuit, the smoke sensor device MQ-2 is connect with one end of resistance R1, the other end of the resistance R1 is connect with the pin 3 of comparator U1, the pin 2 of the comparator U1 is connect with one end of one end of adjustable resistance R3 and resistance R2 respectively, the pin 1 of the comparator U1 is connect with warning circuit, the other end of the smoke sensor device MQ-2 and adjustable resistance R3 is respectively connected with power supply, the other end of the smoke sensor device MQ-2 and resistance R2 is respectively connected with ground wire；Circuit of the present invention is simple, can effectively detect smoke signal, has timely warning function.
Description
Technical field
The present invention relates to smog alarm fields, and in particular to a kind of Along Railway signal of communication computer room smoke detection alarm electricity
Road.
Background technique
There are many unattended communication's signal computer rooms at Along Railway station, to guarantee that communication and signal equipment can work normally,
Computer room fire prevention is one of daily important process of Source of Railway Communication and Signalling system.Currently, there are many unattended communications to believe for Along Railway
Number computer room safety, fire safety work are patrolled by signal of communication personnel timing completely, this is practical to be formed potential faults, because
Just in case fire alarm occurs, staff is not patrolling, and station staff does not also know, consequence is unimaginable, therefore anxious at present
A kind of Along Railway signal of communication computer room smoke detection warning circuit is needed to solve this problem.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of Along Railway communication in view of the above shortcomings of the prior art
Signal computer room smoke detection warning circuit, this Along Railway signal of communication computer room smoke detection warning circuit can effectively detect smoke
Fog signal has timely warning function.
To realize the above-mentioned technical purpose, the technical scheme adopted by the invention is as follows:
A kind of Along Railway signal of communication computer room smoke detection warning circuit, including smoke sensor device MQ-2, resistance R1, resistance
R2, adjustable resistance R3, comparator U1 and warning circuit, the smoke sensor device MQ-2 are connect with one end of resistance R1, the electricity
Resistance R1 the other end connect with the pin 3 of comparator U1, the pin 2 of the comparator U1 respectively with one end of adjustable resistance R3 and
One end of resistance R2 connects, and the pin 1 of the comparator U1 is connect with warning circuit, the smoke sensor device MQ-2 and adjustable electric
The other end of resistance R3 is respectively connected with power supply, and the other end of the smoke sensor device MQ-2 and resistance R2 are respectively connected with ground wire.
Technical solution as a further improvement of that present invention, the warning circuit include resistance R4, triode Q1 and buzzing
Device SP1, the resistance R4 are connect with the base stage of triode Q1, and the emitter of the triode Q1 and one end of buzzer SP1 connect
It connects, the collector of the triode Q1 connects ground wire, and the other end of the buzzer SP1 connects power supply.
Technical solution as a further improvement of that present invention, the comparator U1 are LM324, and the triode Q1 is three poles
Pipe C8550.
The each signal of communication computer room in station is respectively mounted smoke detection warning circuit of the invention along the railway, fiery when occurring
When alert, buzzer issues alarm signal, even if signal of communication professional does not exist, staff is driven a vehicle at station must be thus
It can be handled in time potential faults.Smoke sensor device MQ-2 has investigative range wide, high sensitivity, and response restores fast, stability
Excellent, the advantages that service life is long, the present invention can effectively detect smoke signal, have timely warning function, and circuit is simple, is applied to
This is low.
Detailed description of the invention
Fig. 1 is circuit theory schematic diagram of the invention.
Fig. 2 is the circuit theory schematic diagram of warning circuit of the invention.
Specific embodiment
A specific embodiment of the invention is further illustrated below according to Fig. 1 and Fig. 2:
Referring to Fig. 1, a kind of Along Railway signal of communication computer room smoke detection warning circuit, including smoke sensor device MQ-2, resistance
R1, resistance R2, adjustable resistance R3, comparator U1 and warning circuit, the smoke sensor device MQ-2 are connect with one end of resistance R1,
The other end of the resistance R1 is connect with the pin 3 of comparator U1, and the pin 2 of the comparator U1 is respectively with adjustable resistance R3's
One end is connected with one end of resistance R2, and the pin 1 of the comparator U1 is connect with warning circuit, the smoke sensor device MQ-2 and
The other end of adjustable resistance R3 is respectively connected with power supply, and the other end of the smoke sensor device MQ-2 and resistance R2 are respectively connected with ground
Line.
Referring to fig. 2, the warning circuit includes resistance R4, triode Q1 and buzzer SP1, the resistance R4 and triode
The base stage of Q1 connects, and the emitter of the triode Q1 is connect with one end of buzzer SP1, and the collector of the triode Q1 connects
The other end of ground line, the buzzer SP1 connects power supply.
The comparator U1 is LM324, and the triode Q1 is triode C8550.
When smoke signal is not detected in smoke sensor device MQ-2, comparator U1 exports low level；As smoke sensor device MQ-
2 when detecting smoke signal, and comparator U1 exports 5V high level, the alarm movement in warning circuit.Due to buzzer SP1's
Operating current is generally bigger, so to drive using amplifying circuit, amplifies electric current, triode using triode C8550
C8550 has the characteristics that low-voltage, high current.VCC be power supply+, as shown in Fig. 2, buzzer when the installation of the polarity of buzzer SP1
Anode connects positive pole, and buzzer cathode connects the emitter of triode C8550.
Protection scope of the present invention includes but is not limited to embodiment of above, and protection scope of the present invention is with claims
Subject to, replacement, deformation, the improvement that those skilled in the art that any pair of this technology is made is readily apparent that each fall within of the invention
Protection scope.
Claims (3)
1. a kind of Along Railway signal of communication computer room smoke detection warning circuit, it is characterised in that: including smoke sensor device MQ-2,
Resistance R1, resistance R2, adjustable resistance R3, comparator U1 and warning circuit, one end of the smoke sensor device MQ-2 and resistance R1
Connection, the other end of the resistance R1 connect with the pin 3 of comparator U1, the pin 2 of the comparator U1 respectively with adjustable electric
One end of resistance R3 is connected with one end of resistance R2, and the pin 1 of the comparator U1 is connect with warning circuit, the smoke sensor device
The other end of MQ-2 and adjustable resistance R3 are respectively connected with power supply, and the other end of the smoke sensor device MQ-2 and resistance R2 are all connected with
There is ground wire.
2. Along Railway signal of communication computer room smoke detection warning circuit according to claim 1, it is characterised in that: described
Warning circuit includes resistance R4, triode Q1 and buzzer SP1, and the resistance R4 is connect with the base stage of triode Q1, and described three
The emitter of pole pipe Q1 is connect with one end of buzzer SP1, and the collector of the triode Q1 connects ground wire, the buzzer
The other end of SP1 connects power supply.
3. Along Railway signal of communication computer room smoke detection warning circuit according to claim 2, it is characterised in that: described
Comparator U1 is LM324, and the triode Q1 is triode C8550.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514162.0A CN109215282A (en) | 2017-06-29 | 2017-06-29 | A kind of Along Railway signal of communication computer room smoke detection warning circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514162.0A CN109215282A (en) | 2017-06-29 | 2017-06-29 | A kind of Along Railway signal of communication computer room smoke detection warning circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109215282A true CN109215282A (en) | 2019-01-15 |
Family
ID=64976663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710514162.0A Pending CN109215282A (en) | 2017-06-29 | 2017-06-29 | A kind of Along Railway signal of communication computer room smoke detection warning circuit |
Country Status (1)
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| CN (1) | CN109215282A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1194421A (en) * | 1998-04-06 | 1998-09-30 | 马骏 | Fire alarm method and device using gas sensor |
| CN203217820U (en) * | 2013-03-27 | 2013-09-25 | 江苏建筑职业技术学院 | Electronic smog alarm for teaching |
| CN203813173U (en) * | 2014-04-15 | 2014-09-03 | 昆明理工大学 | Adapter socket with fire hazard and smoke alarm and power-off functions |
| CN104123819A (en) * | 2014-08-11 | 2014-10-29 | 中南林业科技大学 | Fireproof and thief-proof alarming system based on single-chip microcomputer |
| CN204117316U (en) * | 2014-09-29 | 2015-01-21 | 济南职业学院 | Indoor Environment Detection device |
| CN204204144U (en) * | 2014-05-30 | 2015-03-11 | 珠海格林赛威科技有限公司 | Smoke Detection cell arrangement |
-
2017
- 2017-06-29 CN CN201710514162.0A patent/CN109215282A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1194421A (en) * | 1998-04-06 | 1998-09-30 | 马骏 | Fire alarm method and device using gas sensor |
| CN203217820U (en) * | 2013-03-27 | 2013-09-25 | 江苏建筑职业技术学院 | Electronic smog alarm for teaching |
| CN203813173U (en) * | 2014-04-15 | 2014-09-03 | 昆明理工大学 | Adapter socket with fire hazard and smoke alarm and power-off functions |
| CN204204144U (en) * | 2014-05-30 | 2015-03-11 | 珠海格林赛威科技有限公司 | Smoke Detection cell arrangement |
| CN104123819A (en) * | 2014-08-11 | 2014-10-29 | 中南林业科技大学 | Fireproof and thief-proof alarming system based on single-chip microcomputer |
| CN204117316U (en) * | 2014-09-29 | 2015-01-21 | 济南职业学院 | Indoor Environment Detection device |
Non-Patent Citations (1)
| Title |
|---|
| 李林: "《基于单片机的野外作业移动库房安防系统设计》", 《工矿自动化》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190115 |
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| RJ01 | Rejection of invention patent application after publication |