CN108053602A - A kind of pollution prediction method of optical detector of fire smoke and its pollution prediction system - Google Patents
A kind of pollution prediction method of optical detector of fire smoke and its pollution prediction system Download PDFInfo
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- CN108053602A CN108053602A CN201711378371.3A CN201711378371A CN108053602A CN 108053602 A CN108053602 A CN 108053602A CN 201711378371 A CN201711378371 A CN 201711378371A CN 108053602 A CN108053602 A CN 108053602A
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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
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/02—Monitoring continuously signalling or alarm systems
- G08B29/04—Monitoring of the detection circuits
- G08B29/043—Monitoring of the detection circuits of fire detection circuits
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- Computer Security & Cryptography (AREA)
- Chemical & Material Sciences (AREA)
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire Alarms (AREA)
Abstract
A kind of pollution prediction method of optical detector of fire smoke, employ pollution detection, pollution judges, pollution compensates and the technical solution of pollution prediction, staff is enabled to understand the pollution level of optical detector of fire smoke at the first time, and it is able to know that the pre- time of origin of pollution failure of optical detector of fire smoke, staff is facilitated to carry out upkeep operation to the optical detector of fire smoke that will occur to pollute failure, during especially for needing to safeguard multiple optical detector of fire smokes in the same area, it can carry out reducing maintenance cost in a manner of unified safeguard.The present invention also provides a kind of pollution prediction systems of optical detector of fire smoke, the system can remotely obtain the detection data of optical detector of fire smoke and the detection data are handled to obtain the pollutional condition of optical detector of fire smoke, so as to fulfill the pollution prediction method of optical detector of fire smoke.
Description
Technical field
The present invention relates to fire-fighting domains, and in particular to a kind of pollution prediction method of smoke alarm and its pollution prediction system
System.
Background technology
Optical detector of fire smoke is to generate absorption and scattering process to light using fire hazard aerosol fog to detect a kind of dress of fire
It puts and the necessary fire fighting alarm device in numerous places, there is higher automatic identification ability to fire hazard aerosol fog, work as light inductance
Smoke detector detects can send the alarm signals such as acousto-optic when around smokescope is more than alarm threshold value.Optical detector of fire smoke is made
For live class device, it is vital to ensure that its moment is in normal operating conditions, but in practical applications, photoelectric smoke
Either optical dark room surface can be polluted the light source of detector be subject to surrounding materials such as dust or vapor, so as to induce detection
Device thinks to detect fire hazard aerosol fog, and detector is caused to send fire alarm signal.This false alarm easily upsets public life, because
This, usually reduces the susceptibility of optical detector of fire smoke by improving the method for alarm threshold value, and then avoids false alarm situation
Generation.
Under normal conditions, surrounding material is that surrounding material gradually accumulates to be formed to the pollution course of optical detector of fire smoke
, then, alarm threshold value is also required to gradually step up with the accumulation of surrounding material, easily occurs when alarm threshold value setting is too low
False alarm, can involve a delay alarm when alarm threshold value setting is excessively high, therefore, improve alarm threshold value to appropriate amount to light inductance
The working condition of smoke detector has significant impact.Moreover, the alarm threshold value reset reaches the pollution of optical detector of fire smoke
Optical detector of fire smoke will be in malfunction after threshold value, and at this moment, optical detector of fire smoke just quotes pollution to background system
Failure, and then staff is instructed to be replaced or cleaned, the optical detector of fire smoke of malfunction cannot play fire-fighting
Alarm function is unfavorable for fire safety requirements.
In addition, current optical detector of fire smoke does not pollute failure prediction function so that staff can only be to failure
Point carries out the upkeep operation of point-to-point type, occurs the situation for polluting failure successively for optical detector of fire smoke in same scope,
Maintenance personnel can be caused to perform the puzzlement of field operation repeatedly.
The content of the invention
The present invention solves the technical problem of how to carry out pollution prediction to optical detector of fire smoke.It is above-mentioned to solve
Technical problem, the present invention provides a kind of pollution prediction method of optical detector of fire smoke and its pollution prediction systems.
A kind of optical detector of fire smoke pollution prediction method, comprises the following steps：Obtain the current of optical detector of fire smoke
Value；The pollution level of the optical detector of fire smoke is judged according to the currency；According to the dirt of the optical detector of fire smoke
Dye degree carries out the initial alarming value of the optical detector of fire smoke pollution compensation and is compensated alarming value；According to the benefit
It repays alarming value and judges that pollution failure occurs for the optical detector of fire smoke, when the optical detector of fire smoke does not occur to pollute failure
When, prediction pollution time of failure.
A kind of optical detector of fire smoke pollution prediction system, including：Optical detector of fire smoke, fire alarm control unit and disappear
Anti- cloud platform；The optical detector of fire smoke is communicated to connect with the fire alarm control unit, for updating the compensation report of itself
Alert value, is additionally operable to the detection data of itself being sent to the fire-alarm；The fire alarm control unit is communicatively coupled to
The fire-fighting cloud platform, for forwarding the detection data and the compensation alarming value to the fire-fighting cloud platform；The fire-fighting
Cloud platform is used for the pollutional condition of the optical detector of fire smoke according to the detection data monitoring, for predicting pollution failure
Time of origin.
An embodiment of the present invention provides a kind of pollution prediction methods of optical detector of fire smoke, employ pollution detection, dirt
Dye judges, pollution compensates and the technical solution of pollution prediction so that staff can understand photoelectric smoke spy at the first time
The pollution level of device is surveyed, and is able to know that the pre- time of origin of pollution failure of optical detector of fire smoke, facilitates staff to i.e.
The optical detector of fire smoke that pollution failure occurs is subjected to upkeep operation, it is multiple in the same area especially for needing to safeguard
During optical detector of fire smoke, it can carry out reducing maintenance cost in a manner of unified safeguard.The embodiment of the present invention additionally provides
A kind of pollution prediction system of optical detector of fire smoke, the system can remotely obtain the detection data of optical detector of fire smoke simultaneously
The detection data are handled to obtain the pollutional condition of optical detector of fire smoke, so as to fulfill the dirt of optical detector of fire smoke
Contaminate Forecasting Methodology.
Description of the drawings
Fig. 1 is the structure diagram of one optical detector of fire smoke pollution prediction device of embodiment；
Fig. 2 is the flow diagram of two optical detector of fire smoke pollution prediction method of embodiment；
Fig. 3 is the principle schematic of two optical detector of fire smoke pollution prediction method of embodiment.
Specific embodiment
The present invention is described in further detail below by specific embodiment combination attached drawing.
Embodiment one, a kind of pollution prediction system of optical detector of fire smoke, as shown in Figure 1.
In the present embodiment, pollution prediction system includes：Optical detector of fire smoke 101, fire alarm control unit 102 and disappear
Anti- cloud platform 103.Optical detector of fire smoke 101 as needed for one or more, can be distributed in the fire inspection of application places
Location is put, and all optical detector of fire smokes in a fire-fighting region are communicated to connect with a fire alarm control unit 102, preferably
Using the communication mode of fire-fighting dedicated bus, these optical detector of fire smokes 101 are used for respectively to fire in normal operation
Calamity alarm controller 102 transmits the detection data of itself, these currencys of detection data including optical detector of fire smoke 101,
Compensate alarming value, drift value, pollution threshold, initial alarming value or initial background value.
In the present embodiment, currency refers to the real-time output valve of detector, and currency is equal to initial background value when dispatching from the factory,
Currency can gradually increase after being influenced be subject to surrounding materials such as dust, vapor during practical application；Drift value refers to detect
The average value of device currency is higher by the difference of initial background value；Compensation alarming value refers to the minimum output of detector during triggering alarm
Value compensates alarming value and is equal to initial alarming value when dispatching from the factory, when practical application can be reset, and compensation alarming value is with drift value
Increase and increase；Initial alarming value refers to the alarming value of factory setting；Initial background value refers to the defeated of detector factory setting
Go out value, which is typically the theoretical output valve for being not affected by the optical detector of fire smoke of pollution in clean environment；Pollution threshold is
Refer to output valve of the detector under greatest contamination degree, when detector output valve is more than the value, detector will be in pollution event
Barrier state.
In the present embodiment, fire alarm control unit 102 is communicatively coupled to fire-fighting cloud platform 103, it is preferred to use wired
The communication mode of Ethernet or wireless ethernet, being conducive to meet monitoring at a distance with the communication mode of Ethernet will
It asks.Fire alarm control unit 102 will receive detection data and add address for the detection data, which is used to mark
Know the networking position of optical detector of fire smoke, and each optical detector of fire smoke has individually in the pollution prediction system
It numbers location.Fire alarm control unit 102 is used to forward the detection data of each optical detector of fire smoke 101 to fire-fighting cloud platform 103.
In the present embodiment, fire-fighting cloud platform 103 is the comprehensive cloud meter that fire-fighting is exclusively used in and takes into account calculating, data store
Platform is calculated, which can directly communicate with the fire alarm control unit 102 being connected, additionally it is possible to the photoelectricity being connected
Smoke detector 101 carries out indirect communication, and data can be obtained from connected device, and each equipment is carried out according to these data
Fire-fighting O＆M monitors, and then is prompted before realization pollution failure, the functions such as prevention and control before fire.
Embodiment two, a kind of pollution prediction method of optical detector of fire smoke, as shown in Figure 2.The pollution prediction method bag
Include following steps：
S201 obtains the currency of optical detector of fire smoke.
See Fig. 1, optical detector of fire smoke 101 can constantly export a detection signal, the detection in normal operation
Signal is referred to as currency (explanation of currency can detailed in Example one).
In the present embodiment, optical detector of fire smoke 101 reads the currency of itself and is stored, to currency
Sample frequency can be fixed can also be dynamic adjust, as sample frequency for it is per minute once, which kind of sample frequency
It is unrestricted.It is adjusted if sample frequency is dynamic, then optical detector of fire smoke 101 can adding according to self-pollution degree
Increase its sample frequency again to reach accurate, timely sample purpose.
S202 judges the pollution level of optical detector of fire smoke.
In the present embodiment, to judge the pollution level of optical detector of fire smoke 101, it is necessary to obtain the drift of the detector
Value (explanation of drift value can detailed in Example one), because, after optical detector of fire smoke 101 is contaminated, polluter meeting
Change the light path of detector, the currency of detector is caused to become larger, moreover, pollution is more serious, the currency of detector is bigger.
To obtain the drift value under stability state, the currency in step S201 under continuous sampling frequency and calculating are taken in calculating process
The average value of these currencys is obtained, the sampling period for doing average calculating operation can be one hour, one day or one week, specific to sample
Cycle can according to demand be set by staff.It finally obtains, the drift value in a sampling period is equal to more in the cycle
The average value of a currency subtracts the initial background value of optical detector of fire smoke, and (explanation of initial background value can detailed in Example
One).The drift value of gained is stored in the memory of optical detector of fire smoke 101, is waited to be sent.
Drift value is mainly used for judging the pollution level of optical detector of fire smoke 101, when drift value is more than zero, determines light
Inductance smoke detector 101 is contaminated, i.e., there are pollutants for the light source of optical detector of fire smoke 101 or optical dark room surface
Matter；When drift value is in increase tendency, determine that the pollution level of optical detector of fire smoke 101 is aggravating.
In the present embodiment, the acquisition process of drift value is completed in optical detector of fire smoke 101.
S203 carries out pollution compensation to initial alarming value.
The minimum output valve of optical detector of fire smoke when compensation alarming value is triggering alarm compensates alarming value and is equal to when dispatching from the factory
Initial alarming value (explanation of initial alarming value can detailed in Example one), after optical detector of fire smoke 101 is contaminated, is adopted
During by the use of initial alarming value as fire alarm standard, the situation of false alarm can be caused, therefore, initial alarming value meeting during practical application
It is reset, the alarming value reset is compensation alarming value, and compensation alarming value can increase with the increase of drift value.
In the present embodiment, system can reset initial alarming value by way of polluting and compensating, and pollute the tool of compensation
Body process is：Drift value in step S202 and initial alarming value are carried out and computing is compensated alarming value.Photoelectric smoke is visited
Existing compensation alarming value can be updated after initial alarm is worth to pollution compensation by surveying device 101, and will compensate alarming value conduct
New fire alarm standard.
In the present embodiment, the pollution compensation process of alarming value is completed in optical detector of fire smoke 101.
S204 judges that pollution failure and prediction pollution time of failure occur for optical detector of fire smoke.
After seeing that Fig. 1, optical detector of fire smoke 101 receive the detection querying command that fire alarm control unit 102 is sent,
The detection data that its memory preserves are sent to fire alarm control unit 102 by optical detector of fire smoke 101, detect data packet
Contain currency, compensation alarming value, alarm threshold value, initial background value and initial alarming value.Fire alarm control unit 102 receives
After detecting data, new detection data will be formed to detection data addition address, which is used to identify photoelectricity
The networking position of smoke detector 101.Fire alarm control unit 102 according to fire-fighting cloud platform 103 IP address and port numbers with
Fire-fighting cloud platform 103 establishes TCP connection, and fire alarm control unit 102 receives one or more optical detector of fire smokes 101
After detecting data, such detection data are packaged into data packet, and periodically send the data packet to fire-fighting cloud platform 103.For
It ensures that the communication efficiency between fire-alarm 102 and fire-fighting cloud platform 103, the meeting of fire alarm control unit 102 etc. is to be received to disappear
Anti- cloud platform receives the answer signal beamed back after data packet, if 102 continuous several times of fire alarm control unit send data packet it
It does not receive answer signal yet afterwards and then judges communication failure occur, communication failure information can be preserved simultaneously by fire alarm control unit 102
Staff is reminded in a manner of sound, light or word etc..
Fire-fighting cloud platform 103 decomposes it after receiving data packet, and then each detection data are analyzed
To record and predict the pollutional condition of optical detector of fire smoke 101.During one group of detection data is analyzed, when compensation is alarmed
Value more than or equal to optical detector of fire smoke pollution threshold (explanation of pollution threshold can detailed in Example one) when, determine the light
Pollution failure occurs for electric explorer, and fire-fighting cloud platform 103 sends pollution fault cues, and maintenance personnel is reminded to handle relevant pollution
Failure.
In the present embodiment, during one group of detection data is analyzed, when compensating alarming value less than pollution threshold, disappear
Anti- cloud platform 103 starts pollution time of failure forecast function, sees Fig. 3.Fire-fighting cloud platform 103 transfers the more of pollution stage P2
A compensation alarming value predicts its variation tendency according to the Time Distribution of these compensation alarming values, when the compensation of prediction is alarmed
When value reaches pollution threshold, determine the time point of prediction for pollution time of failure.If fire-fighting cloud platform 103 is to a light inductance
When the pollution time of failure of smoke detector prediction is close in current time, when fire-fighting cloud platform 103 will send pollution failure
Between prompt, remind maintenance personnel exclude imminent pollution failure in time.
In another embodiment, optical detector of fire smoke 101 does not perform the work(that drift value calculates and pollutes compensation calculation
Can, but, optical detector of fire smoke 101 directly sends out the currency of itself, pollution threshold, initial alarming value and initial background value
It send to fire alarm control unit 102, then fire-fighting cloud platform 103 is sent it to after being handled by fire alarm control unit 102, and then
The tasks such as drift value calculating, pollution compensation calculation, pollution breakdown judge, pollution failure predication are completed by fire-fighting cloud platform 103.
Use above specific case is illustrated the present invention, is only intended to help to understand the present invention, not limiting
The system present invention.For those skilled in the art, thought according to the invention can also be made several simple
It deduces, deform or replaces.
Claims (10)
- A kind of 1. optical detector of fire smoke pollution prediction method, which is characterized in that comprise the following steps：Obtain the currency of optical detector of fire smoke；The pollution level of the optical detector of fire smoke is judged according to the currency；The initial alarming value of the optical detector of fire smoke is polluted according to the pollution level of the optical detector of fire smoke It compensates and is compensated alarming value；Judge that pollution failure occurs for the optical detector of fire smoke according to the compensation alarming value, when the optical detector of fire smoke When not occurring to pollute failure, prediction pollution time of failure.
- 2. a kind of optical detector of fire smoke pollution prediction method as described in claim 1, which is characterized in that judge the photoelectricity The step of pollution level of smoke detector is：Obtain the average value of multiple currencys, by the initial background value of the average value and the optical detector of fire smoke into Row relatively obtains drift value；When the drift value is more than zero, determine that the optical detector of fire smoke is contaminated, the numerical values recited of the drift value For judging the pollution level of the optical detector of fire smoke.
- 3. a kind of optical detector of fire smoke pollution prediction method as claimed in claim 2, which is characterized in that the initial report Alert value, which carries out the step of pollution compensates, to be included：The initial alarming value of the drift value and the optical detector of fire smoke is carried out and computing obtains the compensation alarming value.
- A kind of 4. optical detector of fire smoke pollution prediction method as claimed in claim 3, which is characterized in that the compensation alarm When value is greater than or equal to the pollution threshold of the photodetector, determine that pollution failure, the dirt occur for the photodetector Dye threshold value is used to determine output valve of the photodetector under greatest contamination degree.
- A kind of 5. optical detector of fire smoke pollution prediction method as claimed in claim 4, which is characterized in that prediction pollution failure The step of time of origin, includes：It predicts the variation tendency of the compensation alarming value, when the compensation alarming value of prediction is equal to the pollution threshold, determines pre- The time point of survey is pollution time of failure.
- 6. a kind of optical detector of fire smoke pollution prediction system, which is characterized in that including：Optical detector of fire smoke, fire alarm Controller and fire-fighting cloud platform；The optical detector of fire smoke is communicated to connect with the fire alarm control unit, for updating the compensation alarming value of itself, It is additionally operable to the detection data of itself being sent to the fire-alarm；The fire alarm control unit is communicatively coupled to the fire-fighting cloud platform, for forwarding the detection data and the compensation Alarming value is to the fire-fighting cloud platform；The fire-fighting cloud platform is used for the pollutional condition of the optical detector of fire smoke according to the detection data monitoring, for pre- Survey the time of origin of pollution failure.
- A kind of 7. optical detector of fire smoke pollution prediction system as claimed in claim 6, which is characterized in that the detection data Currency, drift value, pollution threshold, initial alarming value or initial background value including the optical detector of fire smoke.
- A kind of 8. optical detector of fire smoke pollution prediction system as claimed in claim 6, which is characterized in that the photoelectric smoke The communication mode of detector and the fire alarm control unit is fire-fighting dedicated bus.
- A kind of 9. optical detector of fire smoke pollution prediction system as claimed in claim 6, which is characterized in that the fire alarm Communication mode between controller and the fire-fighting cloud platform is wired ethernet or wireless ethernet.
- 10. such as a kind of optical detector of fire smoke pollution prediction system of claim 6-9 any one of them, which is characterized in that institute The detection data will be received and adds address for the detection data by stating fire alarm control unit, and the address is used In the networking position for identifying the optical detector of fire smoke.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110675591A (en) * | 2019-09-14 | 2020-01-10 | 杭州拓深科技有限公司 | Anti-interference photoelectric smoke detection method and detection module |
| CN112447018A (en) * | 2019-09-02 | 2021-03-05 | 上海昊想智能科技有限公司 | System with dynamically adjusted smoke sensation threshold value and adjusting method |
| CN112530140A (en) * | 2020-12-02 | 2021-03-19 | 中国兵器装备集团自动化研究所 | Joint alarm and pollution area division method based on adjacent position relation of detectors |
| CN114495409A (en) * | 2021-12-20 | 2022-05-13 | 哲弗智能系统（上海）有限公司 | Smoke sensor sensitivity compensation method, device and system and storage medium |
| EP3839914B1 (en) * | 2019-11-13 | 2024-07-31 | Carrier Corporation | Identification of an anomaly on a detector |
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Application publication date: 20180518 |