CN110069038A - A kind of fire-fighting equipment power supply monitoring system - Google Patents
A kind of fire-fighting equipment power supply monitoring system Download PDFInfo
- Publication number
- CN110069038A CN110069038A CN201910460677.6A CN201910460677A CN110069038A CN 110069038 A CN110069038 A CN 110069038A CN 201910460677 A CN201910460677 A CN 201910460677A CN 110069038 A CN110069038 A CN 110069038A
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- fire
- fighting equipment
- power supply
- output end
- input terminal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/14—Plc safety
- G05B2219/14005—Alarm
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Alarm Systems (AREA)
Abstract
The present invention relates to a kind of fire-fighting equipment power supply monitoring systems.Including double-channel analog/digital converter, it is equipped with straight-through current transformer on the power supply line of each fire-fighting equipment, further includes multiple photoelectrical couplers, the output end of each straight-through current transformer is respectively connected to the input terminal of each photoelectrical coupler；Each fire-fighting equipment is divided into two groups, wherein the output end of each photoelectrical coupler of one group of fire-fighting equipment is connected to an input terminal of double-channel analog/digital converter, the output end of each photoelectrical coupler of another group of fire-fighting equipment is connected to another input terminal of double-channel analog/digital converter, is equipped with electromagnetic relay between the output end of each straight-through current transformer and the input terminal of its photoelectrical coupler；It further include PLC controller, each electromagnetic relay is electrically connected with multiple control ports of PLC controller respectively；It further include digital signal processor and embedded computer；It further include display screen and combined aural and visual alarm.The configuration of the present invention is simple, be easy to build, build it is low with maintenance cost.
Description
Technical field
The invention belongs to Power Supply Monitoring equipment technical field more particularly to a kind of fire-fighting equipment power supply monitoring systems.
Background technique
In modern society, the means of escape of building is increasingly taken seriously, and the means of escape generally includes to answer
Anxious illumination, smoke exhaust fan, feeding spraying pump, fire resisting shutter, alarm system etc., above-mentioned apparatus and equipment respectively have independent power supply
Route, the generation of sensor perception fire (such as flue gas of temperature raising, flame), controller control when the accidents such as fire occur
Many kinds of measures coordination and response processed, as alarm system generates sound-light alarm prompt, fire resisting shutter is fallen so that ignition point is isolated, emergency is shone
When bright opening is illuminated to facilitate evacuating personnel, smoke exhaust fan starting smoke evacuation to strive for reduce flue gas concentration as evacuating personnel
Between, feeding spraying pump movement carry out sprinkling fire-distinguishing etc..According to sets requirement, the power supply of above-mentioned various equipment needs to guarantee power supply
Reliability, fire incident occur when, various equipment free of errors should be able to quickly intervene the fire-fighting treatment process of accident
In, therefore, power supply needs to carry out the monitoring of continuous and effective, is handled, is prevented in time when problem occurs for power supply
Above-mentioned various fire protections can not start and cause damages when fire incident generation.
Existing fire-fighting equipment power supply monitoring system generally comprise fire-fighting equipment Power Supply Monitoring host, monitoring area extension set,
Bus system and multiple Power Monitoring Unit corresponding with each fire fighting device, Power Monitoring Unit are applied to corresponding fire-fighting
On the power circuit of measure, power conditions are monitored, the information of monitoring by bus system pass to monitoring host computer or
It is sent to fire-fighting equipment Power Supply Monitoring host by monitoring area extension set, sound-light alarm prompt, electricity are generated by Power Supply Monitoring host
Source abort situation carries out accurately being displayed for treatment people reference.
The structure of above-mentioned fire-fighting equipment power supply monitoring system is complex, wherein Power Supply Monitoring host, region extension set and
All higher with the one-to-one Power Monitoring Unit cost of fire fighting device, lead to entire monitoring system builds cost.Thing
In reality, the monitoring system of above structure is more suitable for the Power Supply Monitoring in the building such as heavy construction, market, however considers
For example small-sized workshop of special occasion, the small building interior space, decentralized housing etc., the electricity of above-mentioned labyrinth
Source monitoring system builds cost since its is higher and is not typically available receiving, it is therefore desirable to fire-fighting power supply monitoring system into
Design in row structure builds cost to reduce, and adapts to installation and use demand under above-mentioned special screne.
Summary of the invention
The present invention is to solve technical problem present in well-known technique and provide that a kind of structure is simple, is easy to build, build
The fire-fighting equipment power supply monitoring system low with maintenance cost.
The technical scheme adopted by the present invention to solve the technical problems existing in the known art is that a kind of fire-fighting equipment electricity
Source monitoring system includes double-channel analog/digital converter, is equipped with straight-through current transformer on the power supply line of each fire-fighting equipment,
It further include multiple photoelectrical couplers, the output end of each straight-through current transformer is respectively connected to the input of each photoelectrical coupler
End；Each fire-fighting equipment is divided into two groups, wherein the output end of each photoelectrical coupler of one group of fire-fighting equipment is connected to binary channels simultaneously
One input terminal of analog-digital converter, another group of fire-fighting equipment the output end of each photoelectrical coupler be connected to binary channels mould simultaneously
Another input terminal of number converter, between the output end of each straight-through current transformer and the input terminal of its photoelectrical coupler
Conducting wire on be equipped with electromagnetic relay；Further include PLC controller, each electromagnetic relay as intermediate relay respectively with
Multiple control ports of PLC controller are electrically connected；It further include digital signal processor and embedded computer, Digital Signal Processing
The input terminal of device is electrically connected with the output end of double-channel analog/digital converter, the output end and embedding assembly of digital signal processor
The input port of machine is electrically connected；Further include display screen and combined aural and visual alarm, both with embedding assembly mechatronics.
The advantages and positive effects of the present invention are: the present invention provides a kind of fire-fighting equipment electricity of structure design advantages of simple
Source monitoring system, compared with existing fire-fighting equipment power supply monitoring system, by setting whole system by double in the technical program
The lower analog quantity member device of this kind of price of channel modulus converter, photoelectrical coupler, electromagnetic relay, straight-through current transformer
Part is built, and the holistic conformation cost of fire-fighting equipment power supply monitoring system is reduced, and is more suitable for such as small-sized workshop, small-sized
The occasions such as architecture indoor space, decentralized housing.By the way that multiple fire-fighting equipments are divided into two groups and use binary channels mould
Number converter receives electric signal in a manner of twin-channel, improves the efficiency of power supply status acquisition.It is controlled by using same PLC
The electromagnetic relay that device controls each fire-fighting equipment is connected in turn, and cooperation double-channel analog/digital converter is realized to multiple fire-fighting equipments
The taking turn formula state of power supply obtains and monitoring, further simplifies the overall structure of system, reduce system builds cost.It is logical
Setting digital signal processor and embedded computer are crossed, the fire-fighting equipment power state signal of acquisition is enabled quickly to be handled,
By setting display screen and combined aural and visual alarm, event occurs for the visualization display and power supply for realizing fire equipments power supply status
Timely sound-light alarm prompt when barrier.
Preferably: further including clock circuit, the output port and PLC controller and double-channel analog/digital converter of clock circuit
The clock control port of the two is electrically connected.
Preferably: further including memory, memory and embedding assembly mechatronics.
Preferably: fire-fighting equipment includes emergency light, smoke exhaust fan, feeding spraying pump, fire resisting shutter, alarm and broadcast
Device, wherein emergency light, smoke exhaust fan and feeding spraying pump three are divided into one group, and fire resisting shutter, alarm and broadcasting equipment are divided into
Another group.
Detailed description of the invention
Fig. 1 is structural block diagram of the invention.
In figure,
1, photoelectrical coupler；2, electromagnetic relay；3, straight-through current transformer.
Specific embodiment
In order to further understand the content, features and effects of the present invention, hereby lifting following embodiment, detailed description are as follows:
Referring to Figure 1, fire-fighting equipment power supply monitoring system of the invention includes double-channel analog/digital converter, is set in each fire-fighting
It is equipped with straight-through current transformer 3 on standby power supply line, further includes multiple photoelectrical couplers 1, each straight-through current transformer 3
Output end be respectively connected to the input terminal of each photoelectrical coupler 1.
Double-channel analog/digital converter is that there are two the analog-digital converters in channel for tool, for converting analog signals into digital letter
Number, can use a plurality of maturations product, as AD9268 (a binary channels, 16,125MSPS analog-digital converter (ADC), if
Meter is used to support to need the communications applications of high-performance, low cost, small size and tool multifunctionality) etc..
In the present embodiment, straight-through current transformer 3 is taken from the power supply line of each fire-fighting equipment in a manner of incuding and taking electricity
Electricity, and export certain current signal, it is contemplated that the failure of fire-fighting equipment power supply in general is mainly circuit break and short circuit,
Therefore reflect the curent change situation in the power supply line of fire-fighting equipment in technical solution of the present invention using current transformer, into
And obtain the information of above-mentioned circuit break and short circuit.
Straight-through current transformer 3 is current common electrical component, itself structure does not set first winding, load current
Conducting wire is passed through by L1 to L2 and rolls the round iron core rolled by silicon steel sheet and play first winding.Twine to secondary winding Direct Uniform
It is wound on round iron core, connects to form closed circuit with the secondary load of the current coils such as instrument, relay, transmitter.Due to
Straight-through current transformer does not set first winding, and no-load voltage ratio passes through the number of turns in mutual inductor iron core according to first winding and determines, wears
Heart the number of turns is more, and no-load voltage ratio is smaller；Conversely, punching the number of turns is fewer, no-load voltage ratio is bigger.
Photoelectrical coupler 1 is a kind of electric one power conversion device of a light using light as media transmission electric signal, for common electricity
Gas element.It is made of light emitting source and light-receiving device two parts.Light emitting source and light-receiving device are assembled in same closed shell, that
It is isolated with transparent insulator around here.The pin of light emitting source is input terminal, and the pin of light-receiving device is output end, and common light emitting source is
Light emitting diode, light-receiving device are photodiode, phototriode etc..
The principle of photoelectrical coupler is: so that light emitting source is shone in photoelectrical coupler input terminal power up signal, the intensity of light takes
Photoelectric current is certainly produced because of photoelectric effect after this illumination is mapped on the light-receiving device being packaged together in the size of exciting current,
It is drawn by light-receiving device output end, thereby realizes the conversion of electric one electricity of a light.It is mainly characterized by: 1. optical signal unidirectionally passes
Defeated, output signal, without feedback, can effectively block the electrical communication between circuit or system to input terminal, but be not turned off between them
Signal transmitting.2. isolation performance is good, electric isolution is fully achieved between input terminal and output end.3. optical signal is not by electromagnetic wave
Interference, it is stable and reliable in work.4. the Spectral matching of light emitting devices and light-sensitive device is very ideal, fast response time, transmission effect
Rate is high, and the time constant of photoelectric coupled device is usually in microsecond even nanoseconds.5. anti-common mode interference ability is strong, can be well
Inhibit to interfere and eliminates noise.6. contactless, long service life, small in size, impact resistance ability is strong.7. easily connecting with logic circuit
It connects.8. operating temperature range is wide, meet industry and military temperature standard.
In technical solution of the present invention, input of the electric current of the output of straight-through current transformer 3 as photoelectrical coupler 1
Electric current, power supply of the input current as light emitting source in photoelectrical coupler 1, therefore the input current in order to enable photoelectrical coupler 1
Lower than its specified input current, straight-through current transformer 3 should have suitable no-load voltage ratio, to export the induced electricity of suitable size
Stream.The no-load voltage ratio setting of straight-through current transformer 3 should refer to the size of conventional current in monitored fire-fighting equipment power supply line (such as
Exchange individual event electric current), by using the straight-through current transformer 3 of suitable no-load voltage ratio, obtain being adapted to corresponding photoelectrical coupler 1
Induced electricity flow valuve.
Each fire-fighting equipment is divided into two groups, wherein the output end of each photoelectrical coupler of one group of fire-fighting equipment be connected to simultaneously it is double
One input terminal of channel modulus converter, another group of fire-fighting equipment the output end of each photoelectrical coupler be connected to bilateral simultaneously
Another input terminal of road analog-digital converter, in the output end of each straight-through current transformer and the input terminal of its photoelectrical coupler
Between conducting wire on be equipped with electromagnetic relay.By the way that multiple fire-fighting equipments are divided into two groups and are converted using double-channel analog/digital
Device receives electric signal in a manner of twin-channel, improves the efficiency of power supply status acquisition.
In the present embodiment, fire-fighting equipment include emergency light, smoke exhaust fan, feeding spraying pump, fire resisting shutter, alarm and
Broadcasting equipment, wherein emergency light, smoke exhaust fan and feeding spraying pump three are divided into one group, fire resisting shutter, alarm and broadcasting equipment
It is divided into another group.It is above-mentioned to disappear in occasions such as small-sized workshop, the small building interior space, decentralized housings
The pattern of anti-equipment has met the needs of daily fire-fighting processing, and wherein emergency light is used to provide the illumination of evacuation, row
Cigarette blower is raced against time using reducing flue gas concentration as evacuating personnel for discharging fume, and feeding spraying pump is used for sprinkling fire-distinguishing, fire resisting shutter
For fire area to be isolated with non-fire area, alarm is escaped for generating alarm sound, broadcasting equipment for broadcasting evacuation
Raw content.
Further include PLC controller, each electromagnetic relay 2 as intermediate relay respectively with multiple controls of PLC controller
Port electrical connection processed.Under the control action of PLC controller, multiple 2 taking turn formulas of electromagnetic relay, which are successively closed, (while to be had and only
There is an electromagnetic relay to be in closed state), correspondingly the photoelectrical coupler 1 of each fire-fighting equipment successively turns with double-channel analog/digital
Parallel operation is connected, and double-channel analog/digital converter sequentially receives the electric signal that each photoelectrical coupler 1 transmits, and carries out analog quantity, number
The conversion of amount.
PLC controller is equipped with necessary peripheral circuit and forms the control with complete control function using PLC chip as core
Device main body, the closure and opening which is used to control each electromagnetic relay 2 in this fire-fighting equipment power supply monitoring system are (corresponding
Ground is switched on or off between straight-through current transformer 3 and photoelectrical coupler 1).This system can configure a battery dress
Set, the accumulator plant as each electromagnetic relay 2 power supply and exist, PLC controller controls the closure of each electromagnetic relay 2
It is exactly the process for controlling each electromagnetic relay 2 and being switched on or switched off with accumulator plant with open process.Accumulator plant and city
It is electric to be connected for a long time and be furnished with power supervisor, it is charged when accumulator plant owes electricity by connection electricity network, in electricity network
It is also able to maintain and remains in operation after power-off.
It further include digital signal processor and embedded computer, the input terminal and double-channel analog/digital of digital signal processor
The output end of converter is electrically connected, and the output end of digital signal processor is electrically connected with the input port of embedded computer；Also
Including display screen and combined aural and visual alarm, both with embedding assembly mechatronics.Double-channel analog/digital converter will collect
Power state signal be transferred to digital signal processor and carry out preposition processing, the number that digital signal processor will obtain after processing
According to embedded computer is transferred to, further operating is carried out by embedded computer.
Embedded computer is the host computer of this temp measuring system, by embedded microprocessor, peripheral hardware devices, embedding
Enter four parts of formula operating system and application program to form.Embedded computer receives the number that digital signal processor is sent
Word signal such as is handled digital signal, is stored, being shown at the operation.Further include memory in the present embodiment, memory with it is embedding
Enter formula calculating mechatronics to call at any time for storing data for embedded computer.
In view of both double-channel analog/digital converter and PLC controller need to cooperate in movement, that is, in PLC
Controller control controls one of closure of electromagnetic relay 2 and (leads between straight-through current transformer 3 and photoelectrical coupler 1
It is logical) afterwards double-channel analog/digital converter carry out single reading, substep acts with so having beat-type, realizes multiple fire-fighting equipment power supplys
The taking turn formula of state obtains.It therefore further include clock circuit, the output port and PLC controller of clock circuit in the present embodiment
It is electrically connected with the clock control port of both double-channel analog/digital converters, that is, using clock circuit or synchronization can be generated
The clock controller control double-channel analog/digital converter and both PLC controllers of clock signal cooperate with, synchronization action.
The principle of Power Supply Monitoring is: under normal circumstances, the state for each fire-fighting equipment power supply that embedded computer obtains
Information be it is stable, when short circuit occurs for the power supply of some fire-fighting equipment or when open circuit fault, when the power supply of taking turn to the equipment
The status signal of significant change, unique instruction that the variation of the signal is broken down as judgement will be generated, failure is led to after occurring
It crosses display screen to be shown, warning note is carried out by combined aural and visual alarm.The time interval of taking turn can by clock circuit into
Row is set and controlled, and typical movement gap periods are 10 seconds, the time of acquisition status information is 1 second.Namely: PLC control
Device controls an electromagnetic relay closure, while double-channel analog/digital converter starts to read, which is 1
Second, following PLC controller controls current electromagnetic relay and opens, and double-channel analog/digital converter also stops reading signal, and 9 seconds
Afterwards, PLC controller controls next electromagnetic relay closure, while double-channel analog/digital converter starts to read, and so recycles past
It is multiple.Each fire-fighting equipment power supply is numbered in the software systems of embedded computer and position setting, the energy after fault alarm
The enough faulty equipment of display in time numbers and equipment position.
Claims (4)
1. a kind of fire-fighting equipment power supply monitoring system, it is characterized in that: including double-channel analog/digital converter, in the electricity of each fire-fighting equipment
It is equipped with straight-through current transformer (3) on the line of source, further includes multiple photoelectrical couplers (1), each straight-through current transformer (3)
Output end be respectively connected to the input terminal of each photoelectrical coupler (1)；Each fire-fighting equipment is divided into two groups, wherein one group of fire-fighting equipment
Each photoelectrical coupler (1) output end simultaneously be connected to an input terminal of double-channel analog/digital converter, another group of fire-fighting is set
The output end of standby each photoelectrical coupler (1) is connected to another input terminal of double-channel analog/digital converter simultaneously, in each punching
Electromagnetism relay is equipped on conducting wire between the output end of formula current transformer (3) and the input terminal of its photoelectrical coupler (1)
Device (2)；
Further include PLC controller, each electromagnetic relay (2) as intermediate relay respectively with multiple controls of PLC controller
Port electrical connection；
It further include digital signal processor and embedded computer, the input terminal and double-channel analog/digital of digital signal processor are converted
The output end of device is electrically connected, and the output end of digital signal processor is electrically connected with the input port of embedded computer；Further include
Display screen and combined aural and visual alarm, both with embedding assembly mechatronics.
2. fire-fighting equipment power supply monitoring system as described in claim 1, it is characterized in that: further including clock circuit, clock circuit
Output port be electrically connected with the clock control port of both PLC controller and double-channel analog/digital converter.
3. fire-fighting equipment power supply monitoring system as claimed in claim 2, it is characterized in that: further include memory, memory with it is embedding
Enter formula and calculates mechatronics.
4. fire-fighting equipment power supply monitoring system as claimed in claim 3, it is characterized in that: fire-fighting equipment include emergency light,
Smoke exhaust fan, feeding spraying pump, fire resisting shutter, alarm and broadcasting equipment, wherein emergency light, smoke exhaust fan and feeding spraying pump three
Person is divided into one group, and fire resisting shutter, alarm and broadcasting equipment are divided into another group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910460677.6A CN110069038A (en) | 2019-05-30 | 2019-05-30 | A kind of fire-fighting equipment power supply monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910460677.6A CN110069038A (en) | 2019-05-30 | 2019-05-30 | A kind of fire-fighting equipment power supply monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN110069038A true CN110069038A (en) | 2019-07-30 |
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ID=67371989
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910460677.6A Pending CN110069038A (en) | 2019-05-30 | 2019-05-30 | A kind of fire-fighting equipment power supply monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470801A (en) * | 2019-09-06 | 2019-11-19 | 北京工业大学 | It is a kind of interior combustable gas concentration detection alarm and display device |
| CN110611981A (en) * | 2019-10-09 | 2019-12-24 | 中安广源检测评价技术服务股份有限公司 | Emergency lighting system for safety production |
-
2019
- 2019-05-30 CN CN201910460677.6A patent/CN110069038A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470801A (en) * | 2019-09-06 | 2019-11-19 | 北京工业大学 | It is a kind of interior combustable gas concentration detection alarm and display device |
| CN110611981A (en) * | 2019-10-09 | 2019-12-24 | 中安广源检测评价技术服务股份有限公司 | Emergency lighting system for safety production |
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