CN111080957A - Fire prevention and control method based on narrowband Internet of things - Google Patents
Fire prevention and control method based on narrowband Internet of things Download PDFInfo
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- CN111080957A CN111080957A CN201911042977.9A CN201911042977A CN111080957A CN 111080957 A CN111080957 A CN 111080957A CN 201911042977 A CN201911042977 A CN 201911042977A CN 111080957 A CN111080957 A CN 111080957A
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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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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
- G08B27/001—Signalling to an emergency team, e.g. firemen
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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Abstract
The embodiment of the invention provides a fire prevention and control method based on a narrowband Internet of things, which comprises the following steps: and dividing the target fire-proof area into fire-proof subareas, acquiring alarm signals of sensors in the fire-proof subareas, and carrying out corresponding fire condition processing according to the alarm signals. In this way, the monitoring ability of a fire-fighting monitoring department on a unit without building fire-fighting facilities can be enhanced, the fire-fighting safety management of the unit is tamped, the responsibility of the fire-fighting safety management of the unit is determined, and the loss of fire is reduced.
Description
Technical Field
The embodiment of the invention relates to the field of narrowband internet of things in general, and more particularly relates to a fire prevention and control method based on narrowband internet of things.
Background
The fire disaster is an important disaster threatening the safety of human beings, the destructive power and the hazard are large, and if the prevention and monitoring measures are not taken, the unimaginable loss can be caused to the personal safety and the property safety.
At present, the existing fire alarm and monitoring facilities and methods can monitor some important office buildings, warehouses, transformer substations, control centers and the like, and fire-fighting supervision departments cannot accurately supervise units without building fire-fighting facilities, such as kindergartens, old homes, group renting rooms, crowded places, construction sites, residential quarters, nine-small places and the like. In places where fire control supervision is not in time, the fire control responsibility of fire-fighting facilities and places is not strict, and the fire control safety awareness of people is not strong, so that the fire-fighting people are killed.
Disclosure of Invention
According to the embodiment of the invention, a fire prevention and control scheme based on a narrowband Internet of things is provided.
The invention provides a fire prevention and control method based on a narrowband Internet of things.
The method comprises the following steps:
and dividing the target fire-proof area into fire-proof subareas, acquiring alarm signals of sensors in the fire-proof subareas, and carrying out corresponding fire condition processing according to the alarm signals.
Further, the dividing the target fire protection area into fire protection zones includes: the target fire protection area is divided into a plurality of vertical fire protection zones and a plurality of horizontal fire protection zones according to the refractory structure of the target fire protection area.
Further, the vertical fire zone is an area between every two refractory structures in the vertical direction within the target fire zone.
Further, the horizontal fire zones are the areas between every two refractory structures in the horizontal direction within the target fire zone.
Further, according to the severity of the fire, the fire is classified into a first-level fire, a second-level fire and a third-level fire in sequence from high to low;
the corresponding three-level responsible crowd according to the fire situation grade is respectively as follows:
the third level is responsible for people who take charge of processing the third level fire;
the second level of responsible crowd handles the second level of fire;
the first level is responsible for the crowd and handles the first level fire.
Further, when the fire level is the third-level fire, sending alarm information to a terminal of a third-level responsible crowd, detecting whether a processing result is returned by the terminal within a specified time, and if so, ending the process; otherwise, the fire level is promoted to the second level.
Further, when the fire level is the second-level fire, alarm information is sent to a terminal of a second-level responsible crowd, whether a processing result is returned by the terminal within a set time is detected, and if yes, the process is finished; otherwise, the fire condition grade is promoted to the first-class fire condition.
And further, when the fire level is the first-level fire, alarm information is sent to the terminal of the first-level responsible crowd.
Further, the judging conditions of the three-level fire include:
within a fire zone, only one smoke alarm signal is triggered; or
When the gas concentration exceeds a concentration alarm threshold, a gas alarm signal is triggered; or
When the residual current and/or the over-current exceed the current alarm threshold value, the current alarm signal is triggered; or
When the line temperature exceeds the temperature alarm threshold, the temperature alarm signal is triggered.
Further, the judgment condition of the first-level fire comprises: within a fire zone, smoke alarm signals from adjacent or multiple smoke detector sensors are triggered.
It should be understood that the statements herein reciting aspects are not intended to limit the critical or essential features of any embodiment of the invention, nor are they intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.
By the fire prevention and control method based on the narrow-band Internet of things, the supervision capability of a fire supervision department on a unit without building fire-fighting facilities is enhanced, the fire safety management of the unit is tamped, the fire safety management responsibility of the unit is determined, and the loss of fire is reduced.
Drawings
The above and other features, advantages and aspects of various embodiments of the present invention will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:
fig. 1 shows a flowchart of a fire prevention and control method based on a narrowband internet of things according to an embodiment of the invention.
Fig. 2 shows a flow chart of an embodiment of the fire prevention and control method according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
According to the invention, the target fire-protection area is divided into fire-protection subareas, the alarm signals of the sensors in the fire-protection subareas are collected, and corresponding fire condition processing is carried out according to the alarm signals, so that the monitoring capability of a fire-protection monitoring department on a unit without building fire-protection facilities is enhanced, the fire-protection safety management of the unit is tamped, the fire-protection safety management responsibility of the unit is determined, and the loss of fire is reduced.
Fig. 1 shows a flow chart of a fire prevention and control method based on a narrowband internet of things, in which the invention can be implemented. The fire prevention and control method comprises the following steps:
and S101, dividing the target fireproof area into fireproof subareas.
Dividing a target fire zone into fire zones, comprising: the target fire protection area is divided into a plurality of vertical fire protection zones and a plurality of horizontal fire protection zones according to the refractory structure of the target fire protection area. Fire prevention regional division refers to dividing a building which is wide in range and not beneficial to fire supervision into a plurality of small areas which are convenient for fire autonomy, and can prevent fire from spreading to other areas within a certain time. By adopting the mode of dividing the fire-proof area, when a fire disaster occurs, the fire behavior can be effectively controlled within a certain range, the loss of the fire disaster can be reduced, and meanwhile, precious time is provided for people to evacuate.
The vertical fire zones are, within the target fire zone, the zones between every two refractory structures in the vertical direction.
Vertical fire zones are used to prevent a fire from spreading in the vertical direction. The fire-resistant facility structure in the vertical direction mainly comprises a fire-resistant floor slab, a refuge layer, a fire-resistant cornice, a functional conversion layer and the like, and is used for preventing the fire from spreading between layers of a high-rise building.
A horizontal fire zone is an area between every two refractory structures in the horizontal direction within the target fire zone.
The horizontal fire zones are used to prevent the fire from spreading in the horizontal direction. The fire-resistant facility structure in the horizontal direction mainly adopts a fire-proof wall, a fire-proof door, a fire-proof window, a fire-proof rolling curtain, a fire-proof water curtain and the like, and is used for preventing the fire behavior from expanding between fire partitions in the horizontal direction.
From the perspective of fire prevention, the smaller the division of the fire-proof area is, the more beneficial the building to the fire prevention, but too small a fire-proof area will affect the use function of the building. Therefore, when dividing fire-proof areas, it is necessary to perform various analyses in consideration of factors such as the properties of buildings, fire risks, industries to which the buildings belong, and the number of people, and to divide fire-proof areas according to local conditions.
S102, collecting alarm signals of sensors in the fire-proof subarea.
The sensors in the fire zones include smoke detectors, combustible gas detectors and electrical fire monitoring detectors.
The smoke detector sends out a smoke alarm signal after sensing triggering. The smoke detector is widely applied to students' dormitories, kindergartens, nursing homes, rented rooms, construction sheds, nine-small places and all-in-one places, and intelligent management of fire fighting management is realized.
One embodiment of the smoke detector can be an NB _ IOT independent wireless smoke detector, and is a smoke detector transmitted through NB-IOT narrowband Internet of things signals. A large amount of smoke can be generated in the smoldering stage of the initial stage of the fire, and after the NB _ IOT independent wireless smoke detector senses the smoke, an acousto-optic signal is sent out to give an alarm to prompt field personnel to check and dispose in time. Meanwhile, fire alarm information is reported to the intelligent fire-fighting monitoring platform in real time through the NB-IOT narrowband Internet of things.
The combustible gas detector sends out a fuel gas alarm signal after sensing triggering. The combustible gas detector adopts a semiconductor sensor, has the characteristics of high stability, small sensitivity drift and the like, and can close a gas pipeline through an electromagnetic valve.
One embodiment of the combustible gas detector can be a stand-alone combustible gas detector with a measurement range of 0-100% LEL, which is installed in a household or a unit kitchen to monitor combustible gas leakage. And when leakage is found, a sound-light alarm signal is sent out on site, and meanwhile, the gas leakage alarm information is reported to the intelligent fire-fighting monitoring platform in real time through the narrow-band internet of things.
The electric fire monitoring detector sends out a current alarm signal and/or a temperature alarm signal after sensing and triggering.
One embodiment of an electrical fire monitoring detector may be a stand-alone modular electrical fire monitoring detector. The circuit can independently monitor and collect electrical parameters such as residual current, overcurrent, circuit temperature and the like in the detected circuit in real time, and automatically alarm when the residual current, the overcurrent, the circuit temperature and the like exceed a set alarm threshold. The running state of the product and various numerical values and alarm information can be transmitted to the intelligent fire-fighting monitoring platform through the RS485 and narrow-band internet of things. Each independent combined electrical fire monitoring detector can monitor 8 channels, and has 6 fixed residual current and overcurrent detection channels and 2 fixed temperature detection channels. The residual current and overcurrent detection channel can monitor the residual current of 0 mA-1500 mA, the alarm threshold value is set to be 300 mA-1500 mA, and the threshold value is set to be 1mA in precision; the temperature detection channel can monitor the temperature of 0-150 ℃, and the alarm temperature is 56-150 ℃; the independent combined type electric fire monitoring detector can also monitor one path of three voltage values of the equipment power supply, wherein the phase voltage is 20-400V; and one path of three current values of the equipment power supply, AC 0.2A-5A.
And S103, carrying out corresponding fire condition processing according to the alarm signal.
In some embodiments, the fire can be classified into a first-level fire, a second-level fire and a third-level fire in sequence according to the severity of the fire from high to low; wherein the severity and the emergency degree of the first-level fire are higher than those of the second-level fire, and the severity and the emergency degree of the second-level fire are higher than those of the third-level fire.
In this embodiment, the triggering conditions of the third-level fire include:
condition 1: within a fire zone, only one smoke alarm signal is triggered;
condition 2: when the gas concentration exceeds a concentration alarm threshold, a gas alarm signal is triggered;
condition 3: when the residual current exceeds a current alarm threshold value, a current alarm signal is triggered;
condition 4: when the overcurrent exceeds a current alarm threshold, a current alarm signal is triggered;
condition 5: when the residual current and the over-current exceed the current alarm threshold, the current alarm signal is triggered;
condition 6: when the line temperature exceeds the temperature alarm threshold, the temperature alarm signal is triggered.
When the above conditions are satisfied in the target fire-protected area, it may be determined as a tertiary fire.
In this embodiment, the triggering conditions of the first-level fire include: in a fire-protection subarea, smoke alarm signals of adjacent smoke detector are triggered; in a fire-protected area, smoke alarm signals of a plurality of smoke detector sensors are triggered. The smoke detector is relatively accurate to the perception of the authenticity of the fire, the smoke detector senses smoke signals in the area, if adjacent smoke detectors are triggered or a plurality of smoke detectors in a fire prevention area are triggered simultaneously, the smoke in the area is indicated, and the smoke is an important judgment index in the smoldering stage of the fire.
The fire level is distinguished and the fire level can be distinguished and processed according to the specific severity and the emergency degree of the fire, so that the labor and the financial resources are saved, the efficiency is improved, and the waste of excessive social public resources is avoided. Meanwhile, large disasters and small disasters are distinguished, and the panic degree and social public opinion of people can be reduced.
In some embodiments, the responsible person for the fire zone may be classified into three classes, respectively: the first level of responsible population, the second level of responsible population and the third level of responsible population. Wherein the first level is responsible for the processing of the first level fire, the second level is responsible for the processing of the second level fire, and the third level is responsible for the processing of the third level fire.
In this embodiment, the third level of responsible people mainly includes: fire attendant, floor fire manager, regional fire manager. The second level of responsible population mainly comprises: a unit fire control manager and a property fire control manager. The first level of responsible population mainly comprises: the unit responsible person, the fire-fighting organization responsible person and the fire-fighting supervision officer.
The responsible persons are classified and correspond to the fire level, so that the responsible persons can be subdivided, manpower and material resources are saved, the efficiency is improved, the resource waste is avoided, meanwhile, the responsibility is clear, and the traceability is realized.
In this embodiment, the person and manner of handling are different for each level of fire.
In some embodiments, when the fire level is a third-level fire, the alarm information is pushed to a terminal of a third-level responsible crowd, whether a processing result is returned by a mobile terminal within a specified time is detected, and if yes, the process is ended; otherwise, the fire level is promoted to the second level. The specified time is generally 1-3 minutes, and the specified time can be adjusted according to the field condition.
When the fire level is the second-level fire, sending alarm information to a terminal of a second-level responsible group, detecting whether a processing result is returned by the terminal within a specified time, and if so, ending the process; otherwise, the fire condition grade is promoted to the first-class fire condition. The specified time is generally 1-3 minutes, and the specified time can be adjusted according to the field condition.
And when the fire level is the first-level fire, sending alarm information to the terminal of the first-level responsible crowd.
In this embodiment, the terminal includes a mobile terminal and a non-mobile terminal, and the mobile terminal includes: the mobile phone, the notebook computer, the tablet computer, the PDA and other mobile electronic devices can receive the push message. The non-mobile terminal comprises a computer or other terminal device capable of receiving push messages.
And each level of fire is processed in a distinguishing way, the handling means and the response time of each level are defined, and the fire immediately enters the response process when the fire occurs, so that the handling personnel and the responsibility are defined, and the fire is prevented from spreading.
Fig. 2 shows a flow chart of an embodiment of the fire prevention and control method according to the present invention.
In one embodiment of the invention, when the fire level is a three-level fire, the alarm information is reported to the intelligent fire monitoring platform in real time, and is pushed to the mobile phone of the fire attendant on the unit floor by the intelligent fire monitoring platform, and the fire attendant on the unit floor is required to respond to the fire within one minute, and meanwhile, a response processing result is returned to the intelligent fire monitoring platform for reporting. If the fire is not treated by one minute, the fire grade is upgraded from the third-class fire to the second-class fire.
When the fire level is a second-level fire, the alarm information is reported to the intelligent fire-fighting monitoring platform in real time and is pushed to a mobile phone of a fire safety manager by the intelligent fire-fighting monitoring platform, the fire safety manager is required to respond to the fire within one minute, and meanwhile, a response processing result is returned to the intelligent fire-fighting monitoring platform for reporting. If the fire is not processed for one minute, the fire level is upgraded from the second level fire to the first level fire.
And when the fire level is the first-level fire, sending the alarm information to the mobile phones of the fire safety responsible persons and the responsible persons of the fire rescue organization.
The whole process of the process is recorded, and the responsibility traceability is ensured.
In another implementation of this embodiment, the processing status of each level of responsible persons for fire is divided into unprocessed and processed status, and the processed status is divided into testing, false alarm and real fire.
1. Unprocessed scene analysis: when the smoke sensing device sends a fire alarm signal, the system automatically studies and judges a three-level fire alarm and pushes the three-level fire alarm to a fire attendant of a related floor or a fire protection zone, the three-level fire alarm is unprocessed in one minute, the system upgrades the fire alarm into a two-level fire alarm and pushes the two-level fire alarm to a unit fire manager, and the three-level fire alarm is unprocessed in one minute, and the system upgrades the fire alarm into a one-level fire alarm and pushes the two-level fire alarm to a unit fire supervisor and a fire control supervision department.
2. Processed (test) scenario analysis: when the smoke sensing equipment is installed by constructors, the smoke sensing equipment needs to be tested on site, when the tested equipment monitors smoke alarm, the system automatically studies and judges three-level fire alarm and pushes the three-level fire alarm to a fire attendant of a related floor or a fire prevention subarea, and at the moment, a floor fire control manager treats the fire alarm as a test state and finishes the alarm treatment.
3. Processed (false positive) scene analysis: when the smoke sensing equipment gives out fire alarm due to faults, the system automatically studies and judges three-level fire alarm and pushes the three-level fire alarm to a fire control manager of a related floor or a fire prevention subarea, and when the fire control manager confirms that the alarm is false alarm, the fire control manager processes the fire into a false alarm state and finishes the alarm processing.
4. Processed (real fire alarm) scene analysis: after the smoke sensor sends out a smoke alarm signal, the system automatically studies and judges a three-level fire alarm and pushes the smoke alarm to a fire control manager of a related floor or a fire protection subarea, after the fire control manager confirms that the alarm is a real fire alarm, the fire alarm is processed into a real fire alarm state and is dialed 119, the system upgrades the fire alarm into a first-level fire alarm and pushes the fire alarm to a fire control supervision department, and a fire control mechanism can watch a related video of a fire unit after receiving the alarm and determines the acting police force according to the situation of the fire.
According to the embodiment of the invention, the mobile phone APP is fused with the platform, key unit personnel and supervision department personnel, the hierarchical management and control of early fire conditions are realized, the unit fire alarm signal treatment is divided into three levels of unit floor fire-fighting attendant, fire-fighting safety manager and fire-fighting safety responsible person, and the treatment means and response time of each level are defined. Meanwhile, alarms of more than two detectors in one minute of a high-risk unit, a fire-fighting key part, a manual alarm button and the same fire-fighting partition, confirmed fire and fire alarms in a special time period are directly pushed to the platform to be treated. The fire-fighting supervision capability is strengthened, and the fire-fighting safety management of a unit is tamped. Through monitoring and analysis, compared with the same period, the fire disaster starting number, the casualties, the injury condition and the economic loss are all reduced. Through monitoring data analysis and study, unit fire safety control is not in place, and units with untimely hidden danger disposal mainly concentrate on which places, provides data support for accurate law enforcement of fire control.
Although the subject matter has been described in language specific to methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Claims (10)
1. A fire prevention and control method based on a narrowband Internet of things is characterized by comprising the following steps:
and dividing the target fire-proof area into fire-proof subareas, acquiring alarm signals of sensors in the fire-proof subareas, and carrying out corresponding fire condition processing according to the alarm signals.
2. The method of claim 1, wherein the dividing the target fire zone into fire zones comprises: the target fire protection area is divided into a plurality of vertical fire protection zones and a plurality of horizontal fire protection zones according to the refractory structure of the target fire protection area.
3. A method according to claim 2, wherein the vertical fire zones are, within the target fire zone, the zones between every two refractory infrastructure structures in the vertical direction.
4. The method of claim 2, wherein the horizontal fire zones are zones between every two refractory infrastructure structures in a horizontal direction within the target fire zone.
5. The method of claim 1,
according to the severity of the fire, the fire is classified into a first-level fire, a second-level fire and a third-level fire in sequence from high to low;
the corresponding three-level responsible crowd according to the fire situation grade is respectively as follows:
the third level is responsible for people who take charge of processing the third level fire;
the second level of responsible crowd handles the second level of fire;
the first level is responsible for the crowd and handles the first level fire.
6. The method according to claim 5, characterized in that when the fire level is the third-level fire, alarm information is sent to the terminal of the third-level responsible crowd, whether a processing result is returned by the terminal within a specified time is detected, and if yes, the process is ended; otherwise, the fire level is promoted to the second level.
7. The method according to claim 5, characterized in that when the fire level is the second-level fire, alarm information is sent to the terminal of the second-level responsible crowd, whether a processing result is returned by the terminal within a specified time is detected, and if yes, the process is ended; otherwise, the fire condition grade is promoted to the first-class fire condition.
8. The method according to claim 5, characterized in that when the fire level is the first level fire, alarm information is sent to the terminal of the first level responsible crowd.
9. The method according to claim 5 or 6, wherein the judging condition of the tertiary fire comprises:
within a fire zone, only one smoke alarm signal is triggered; or
When the gas concentration exceeds a concentration alarm threshold, a gas alarm signal is triggered; or
When the residual current and/or the over-current exceed the current alarm threshold value, the current alarm signal is triggered; or
When the line temperature exceeds the temperature alarm threshold, the temperature alarm signal is triggered.
10. The method of claim 5, wherein the primary fire determination condition comprises: within a fire zone, smoke alarm signals from adjacent or multiple smoke detector sensors are triggered.
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| CN115282526A (en) * | 2022-08-11 | 2022-11-04 | 上海外高桥造船有限公司 | Marine fire extinguishing method and water fire extinguishing system |
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