CN207115677U - Fire alarm system based on PLC - Google Patents
Fire alarm system based on PLC Download PDFInfo
- Publication number
- CN207115677U CN207115677U CN201720672186.4U CN201720672186U CN207115677U CN 207115677 U CN207115677 U CN 207115677U CN 201720672186 U CN201720672186 U CN 201720672186U CN 207115677 U CN207115677 U CN 207115677U
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- fire
- fire alarm
- plc
- control unit
- detector
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Abstract
The utility model discloses a kind of fire alarm system based on PLC, including fire detector, fire alarm control unit, PLC central controller, disaster reduction device and extinguishing device；Described fire detector connects the fire alarm control unit；The fire alarm control unit is connected with the PLC central controller and the disaster reduction device respectively；The PLC central controller connects the extinguishing device and the disaster reduction device respectively.Fire alarm system of the utility model based on PLC, automatic fire alarm system can be in Initial Stage of Fire, the physical quantity such as smog, heat and light radiation caused by burning, electric signal is become by temperature-sensitive, sense cigarette and the fire detector such as photosensitive, it is transferred to fire alarm control unit, and the position that fire occurs is shown simultaneously, the time that record fire occurs.The rate of false alarm of the system is reduced to bottom line, and the degree of accuracy and the reliability of alarm has been significantly increased.
Description
Technical field
It the utility model is related to fire alarm system, and in particular to a kind of fire alarm system based on PLC.
Background technology
With the development of information-intensive society, building increasingly becomes a composition in human environment, from industrial society to now
The concept steering surface of generationization building just worldwide flourishes to the demand of information-intensive society, intelligent building, and a large amount of
Architectural practice in achieve significantly effect.It was verified that with society and expanding economy, the importance of fire-fighting work is just
It is more and more prominent.Thus, fire-alarm is also especially prominent in the effect of fire-fighting work.The automatic fire alarm control in China
System experienced from scratch, from simple to the evolution of complexity, its intelligence degree also more and more higher.But current domestic factory
Family's research and development laid particular stress on for bulk storage plant, market, advanced office building, hotels and other places large-sized fire warning system, they adopt more
It is higher with concentrated area controlling alarm mode, its system complex, cost.It is and small-sized anti-in residential neighborhoods, computer room, office etc.
Fiery unit is, it is necessary to set a kind of single or area networking, cheap practical automatic fire detection-alarm device, therefore, development one
Simple in construction, the cheap speech digital network fire alarm of kind is very important.
Utility model content
The utility model overcomes the deficiencies in the prior art, there is provided a kind of fire alarm system based on PLC.
To solve above-mentioned technical problem, the utility model uses following technical scheme：
A kind of fire alarm system based on PLC, including the control of fire detector, fire alarm control unit, PLC center
Device, disaster reduction device and extinguishing device；Described fire detector connects the fire alarm control unit；The fire alarming and controlling
Device is connected with the PLC central controller and the disaster reduction device respectively；The PLC central controller connects described go out respectively
Fiery device and the disaster reduction device.
Further technical scheme is also to include manual alarm control device, the manual alarm control device respectively with
The fire alarm control unit, PLC central controller and extinguishing device connection.
Further technical scheme is that described fire alarm control unit is connected with siren.
Further technical scheme is that described fire alarm control unit is provided with sound and light alarm controller display device.
Further technical scheme is that described fire detector includes smoke detector, heat detector, light radiation
At least one of detector and combustible gas probe.
Compared with prior art, one of beneficial effect of the utility model embodiment is：Fire of the utility model based on PLC
Calamity warning system, automatic fire alarm system can be in Initial Stage of Fire, by the physics such as smog, heat and light radiation caused by burning
Amount, electric signal is become by temperature-sensitive, sense cigarette and the fire detector such as photosensitive, is transferred to fire alarm control unit, and show simultaneously
Go out the position of fire generation, the time that record fire occurs.The rate of false alarm of the system is reduced to bottom line, and significantly carries
The degree of accuracy of high alarm and reliability.
Brief description of the drawings
Fig. 1 is the system architecture theory diagram of the utility model one embodiment.
Fig. 2 is the type block diagram of fire detector in the utility model one embodiment.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, summary and accompanying drawing), except non-specifically chatting
State, can alternative features equivalent by other or with similar purpose replaced.I.e., unless specifically stated otherwise, each feature
It is an example in a series of equivalent or similar characteristics.
Below in conjunction with the accompanying drawings and specific embodiment of the present utility model is described in detail embodiment.
In the following detailed description, many specific descriptions are described for illustrative purposes so as to thoroughly understand institute
Disclosed embodiment, it is clear, however, that one or more embodiments can be in the case of without using these specific descriptions
Implement, in other instances, known structure and device are schematically shown, to simplify accompanying drawing.
As shown in figure 1, according to one embodiment of the present utility model, the present embodiment discloses a kind of fire report based on PLC
Alert system, the system are by triggering device, fire alarm installation, Fire alarm device and the device with other miscellaneous functions
The fire alarm system of composition, in automatic fire alarm system, the device that automatic or manual produces fire alarm signal is referred to as
Trigger member, mainly include fire detector and manual fire alarm call point.Fire detector is the biography of automatic fire alarm system
Feel part, be the significant components for forming various automatic fire alarm systems, be automatic fire alarm system " sense organ ".It
Fire parameter (such as cigarette, temperature, Fire Radiation, gas concentration) can be responded, and automatically generate fire alarm signal, or to control
System and instruction equipment send the device of live fire condition signal.Fire detector is the key element in system, his stabilization
Property, the technical indicator such as reliability and sensitivity can be influenceed by factors, therefore the selection of fire detector and arrangement should
It should be carried out in strict accordance with specification.
Specifically, fire alarm system of the present embodiment based on PLC includes fire detector, fire alarm control unit, PLC
Central controller, disaster reduction device and extinguishing device；Described fire detector connects the fire alarm control unit；Wherein, it is fiery
Calamity alarm controller is connected with siren, wherein, alarm mainly uses horn and lamp flashing type two schemes, the present embodiment
It is middle to be alarmed using loudspeaker, it is easy to the fire signal transmission of long range, in order to which the evacuation of people and system automatically control.And fire
Calamity alarm controller is provided with sound and light alarm controller display device.The fire alarm control unit is central with the PLC respectively
Controller and disaster reduction device connection；The PLC central controller connects the extinguishing device and mitigation dress respectively
Put.Fire detector is arranged on by warning scene, and is also provided with extinguishing device simultaneously by warning scene and is equipped with mitigation
Device.
Further, fire alarm system of the present embodiment based on PLC is additionally provided with manual alarm control device, the hand
Dynamic alarm controller is connected with the fire alarm control unit, PLC central controller and extinguishing device respectively.
Wherein, fire detector detects the scene guarded against or object year in year out, when fire occurs for detection place object
During calamity, fire detector detects the signals such as smog, high temperature, flame and the distinctive gas of fire that fire occurs and is converted into electricity
Signal, by with normal condition threshold values or parameter model com-parison and analysis, provide fire alarm signal, pass through fire alarm control unit
On sound and light alarm controller display device show, notify fire fighter that there occurs fire.Meanwhile automatic fire alarm system
System starts alarm device by fire alarm control unit, warns Field Force to put into fire-extinguishing operations or evacuated from scene of fire；Open
Dynamic circuit breaker controller for electric consumption, smoke controlling equipment, fire resistant doorsets, roller shutter of setting fire, Fire lift, emergent lightning in fire disaster, fire telephone etc. subtract
Calamity device, fire department of preventing something from spreading, control the intensity of a fire and seek help are supported；Start fire hydrant, Water spray, water curtain and extinction using gas system
System and device, stamp out a fire in time, reduce fire damage.Once fire is extinguished, whole automatic fire alarm system is returned to
Normal monitoring state.
Specifically, the PLC central controller PLC of SIEMENS s7-200 of Siemens Company in the present embodiment, this is
The PLC of row has the characteristics that compact-sized, modularization, scalability are strong, instruction set is abundant.Selected CPU models CPU
224 expansible 7 modules, maximum reach 94DI/74DO, 16AI/16AO (analog input/analog input) and offer 14
Digital quantity inputs and 10 digital outputs.Input/output interface circuit employs optically coupled circuit, has to extraneous interface
Very strong adaptability.Due to having used electric control valve, so also extending an Analog input mModule of EM 232.The module
With 2 road analog outputs, precision ± 0.25% when electric current gamut resolution ratio is 11,25 DEG C, stabilization time 2ms.
The requirement of more complicated control system can be met.
Specifically, as shown in Fig. 2 in order to improve system reliability, reduce wrong report and fail to report, detection in the present embodiment
Device includes smoke detector, heat detector, optical detector and combustible gas probe.Fire can according to circumstances be sent simultaneously
Calamity signal.The protection object form of automatic fire alarm system is various, Various Functions, scale.Smoke detector is to utilize
One compact smoke sensor responds one kind of smog gas glue caused by the burning and pyrolysis being suspended in its near its circumference air
Fire detector, is generally made point-type structure, mainly there is ionic formula and scattering type two types.In addition, dim light formula
Smoke, which visits device, point-type and linear two kinds of structures, and wherein linear structure is made generally in the linear fire of active infrared correlation and visited
Survey device.Heat fire detector is to respond its near its circumference air-flow using a point-type or cable-type fire parameter sensor
The fire detector of abnormal temperature and heating rate, its structure have two kinds of a point-type and cable-type, currently used relatively broad to be
Point-type electronic temperature sensing fire detector and cable-type connecting fuse metal temperature-sensing fire detector.Photosensitizing type fire detector is according to thing
The characteristic of matter combustion process Flame and the light radiation intensity of flame and the fire for being used for flame light characteristic when responding fire formed
Fire detector, is usually fabricated to that passive type is ultraviolet or infra red flame photo-detector.
For the ease of early detection, early alert, facilitate daily maintenance management, in the automatic fire alarm system of installation
In, its guard space is typically divided into several alarm regions by people.Each alarm region has divided several detections again
Region.So this can quickly and accurately determine fire position, be easy to the relevant personnel to adopt an effective measure in fire.
Therefore, so-called alarm region is exactly people in the design by the fence coverage of automatic fire alarm system by fire prevention point
Area or the segment space of floor division, it is the elementary cell of setting area fire alarm control unit.One alarm region can be by
One fire compartment or the adjacent several fire compartments composition with floor, but same fire compartment can not be at two, different reports
In police region domain；Same Alarm region can not protect several different fire compartments of different floors.
" one embodiment " for being spoken of in this manual, " another embodiment ", " embodiment " etc., refer to combining
Specific features, structure or the feature of embodiment description are included at least one embodiment of the application generality description.
It is not necessarily to refer to same embodiment that statement of the same race, which occur, in multiple places in the description.Furthermore, it is understood that with reference to any
When individual embodiment describes a specific features, structure or feature, what is advocated is this to realize with reference to other embodiment
Feature, structure or feature also fall in the scope of the utility model.
Although reference be made herein to the utility model is described multiple explanatory embodiments of utility model, still, should
The understanding, those skilled in the art can be designed that a lot of other modifications and embodiment, and these modifications and embodiment will
Fall within spirit disclosed in the present application and spirit.More specifically, in the model of disclosure, drawings and claims
In enclosing, a variety of variations and modifications can be carried out to the building block and/or layout of theme combination layout.Except to building block
And/or outside the variations and modifications of layout progress, to those skilled in the art, other purposes also will be apparent.
Claims (3)
1. a kind of fire alarm system based on PLC, including fire detector, fire alarm control unit, PLC central controller,
Disaster reduction device and extinguishing device；It is characterized in that：Described fire detector connects the fire alarm control unit；The fire
Alarm controller is connected with the PLC central controller and the disaster reduction device respectively；The PLC central controller connects respectively
Connect the extinguishing device and the disaster reduction device；Also include manual alarm control device, the manual alarm control device difference
It is connected with the fire alarm control unit, PLC central controller and extinguishing device；Described fire detector includes sense cigarette and visited
Survey at least one of device, heat detector, optical detector and combustible gas probe.
2. the fire alarm system according to claim 1 based on PLC, it is characterised in that described fire alarm control unit
It is connected with siren.
3. the fire alarm system according to claim 1 based on PLC, it is characterised in that described fire alarm control unit
It is provided with sound and light alarm controller display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720672186.4U CN207115677U (en) | 2017-06-09 | 2017-06-09 | Fire alarm system based on PLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720672186.4U CN207115677U (en) | 2017-06-09 | 2017-06-09 | Fire alarm system based on PLC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207115677U true CN207115677U (en) | 2018-03-16 |
Family
ID=61594488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720672186.4U Expired - Fee Related CN207115677U (en) | 2017-06-09 | 2017-06-09 | Fire alarm system based on PLC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207115677U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112053529A (en) * | 2020-04-30 | 2020-12-08 | 南京理工大学 | PLC-based multi-area joint control automatic fire alarm system |
| CN114991639A (en) * | 2022-05-31 | 2022-09-02 | 浙江台谊消防股份有限公司 | Fire door control system that prevents explosion and knock protection |
-
2017
- 2017-06-09 CN CN201720672186.4U patent/CN207115677U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112053529A (en) * | 2020-04-30 | 2020-12-08 | 南京理工大学 | PLC-based multi-area joint control automatic fire alarm system |
| CN114991639A (en) * | 2022-05-31 | 2022-09-02 | 浙江台谊消防股份有限公司 | Fire door control system that prevents explosion and knock protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180316 Termination date: 20210609 |