CN114396689A - Garage ventilation and smoke exhaust method, system, equipment and storage medium - Google Patents
Garage ventilation and smoke exhaust method, system, equipment and storage medium Download PDFInfo
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- CN114396689A CN114396689A CN202111638974.9A CN202111638974A CN114396689A CN 114396689 A CN114396689 A CN 114396689A CN 202111638974 A CN202111638974 A CN 202111638974A CN 114396689 A CN114396689 A CN 114396689A
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- 239000000779 smoke Substances 0.000 title claims abstract description 84
- 238000009423 ventilation Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000001502 supplementing effect Effects 0.000 claims abstract description 61
- 238000012545 processing Methods 0.000 claims abstract description 44
- 238000012544 monitoring process Methods 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims description 28
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 27
- 239000013589 supplement Substances 0.000 claims description 11
- 239000003546 flue gas Substances 0.000 claims description 9
- 238000004590 computer program Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- 230000010365 information processing Effects 0.000 claims description 4
- 239000003517 fume Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 18
- 238000004364 calculation method Methods 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 230000002265 prevention Effects 0.000 description 8
- 230000006870 function Effects 0.000 description 5
- 235000019504 cigarettes Nutrition 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/04—Removing or cutting-off the supply of inflammable material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F17/00—Vertical ducts; Channels, e.g. for drainage
- E04F17/02—Vertical ducts; Channels, e.g. for drainage for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F17/00—Vertical ducts; Channels, e.g. for drainage
- E04F17/04—Air-ducts or air channels
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H6/00—Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
- E04H6/42—Devices or arrangements peculiar to garages, not covered elsewhere, e.g. securing devices, safety devices, monitoring and operating schemes; centering devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
- F24F11/35—Responding to malfunctions or emergencies to fire, excessive heat or smoke by closing air passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The application relates to the field of garage ventilation and smoke exhaust, in particular to a method, a system, equipment and a storage medium for the garage ventilation and smoke exhaust, wherein the method comprises the steps of acquiring monitoring video and air quality data of the inside condition of a garage; processing the monitoring video by the image to obtain an image processing result, and counting the air quality data to obtain air quality statistical data; judging the image processing result to obtain a fire judgment result, and controlling the running states of a fan supplementing machine and an exhaust fan in the garage according to the fire judgment result; determining whether air quality statistical data need to be continuously processed according to a fire judgment result; and when the air quality statistical data needs to be continuously processed, controlling the running states of the air supplementing fan and the exhaust fan according to the air quality statistical data and the preset air quality statistical data threshold range. This application has the effect that promotes secret garage security.
Description
Technical Field
The application relates to the field of ventilation and smoke exhaust of garages, in particular to a method, a system, equipment and a storage medium for ventilation and smoke exhaust of a garage.
Background
The number of fuel automobiles kept in China is large, and underground garages for parking automobiles are built in a plurality of districts, shopping malls or buildings.
At present, ventilation of a plurality of underground garages is mainly realized by means of lighting wells and vehicle entrances and exits.
In the process of implementing the present application, the inventors found that the above-mentioned technology has at least the following problems: under the condition that harmful gas in the air is increased or fire disaster occurs in the underground garage, the harmful gas or dense smoke caused by the fire disaster is difficult to be discharged in time, so that personnel left in the underground garage are easily placed in dangerous places, and the safety of the underground garage is low under the condition of the prior art.
Disclosure of Invention
In order to facilitate the improvement of the safety of the underground garage, the application provides a method, a system, equipment and a storage medium for ventilating and discharging smoke of the garage.
In a first aspect, the application provides a method for ventilating and exhausting smoke in a garage, which adopts the following technical scheme:
a garage ventilation and smoke exhaust method comprises the following steps:
acquiring monitoring video and air quality data of the internal condition of the garage;
processing the monitoring video by images to obtain image processing results, and counting the air quality data to obtain air quality statistical data;
judging the image processing result to obtain a fire judgment result, and controlling the running states of a fan supplementing machine and an exhaust fan in the garage according to the fire judgment result;
determining whether the air quality statistical data needs to be processed continuously according to the fire judgment result;
and when the air quality statistical data needs to be continuously processed, controlling the running states of the air supplementing fan and the exhaust fan according to the air quality statistical data and a preset air quality statistical data threshold range.
By adopting the technical scheme, whether a fire disaster occurs in the underground garage can be conveniently identified by acquiring the video of the underground garage and then carrying out graphic processing on the acquired video, and meanwhile, the air quality in the underground garage is also detected, and if the fire disaster occurs, the dense smoke in the underground garage is preferentially discharged by controlling the operation of the air supplementing machine and the exhaust fan so as to reduce the harm caused by the dense smoke; further, if the fire does not happen and the problem of air quality in the underground garage is detected, the air in the garage is discharged and new air is discharged by controlling the operation of the air supplementing fan and the exhaust fan.
In a specific embodiment, the vehicle is controlled according to the fire judgment result
The operational state of the air supply fan and the exhaust fan in the warehouse comprises:
if the fire judgment result is that fire occurs in the garage, starting the air supplementing fan and the exhaust fan, enabling the air supplementing fan and the exhaust fan to operate at the maximum power, and adjusting the operation state of the exhaust fan to be a smoke exhaust state;
and if the fire judgment result indicates that no fire occurs in the garage, controlling the running states of the air supplementing fan and the exhaust fan according to the air quality statistical data and a preset air quality statistical data threshold range.
By adopting the technical scheme, when a fire disaster occurs, the power of the air supplementing fan for blowing new air into the underground garage is improved to the highest level, and meanwhile, the working state of the exhaust fan is adjusted to be a smoke exhaust state, so that the efficiency of exhausting thick smoke in the underground garage can be accelerated; if the garage is not in fire, the air quality in the underground garage is detected.
In a specific possible embodiment, the air supplementing machine is connected with a device for controlling the air supplementing machine,
The air supplementing fire damper can detect the air temperature in the garage; the exhaust fan is connected with an exhaust fireproof valve used for controlling the exhaust amount generated by the exhaust fan, and the exhaust fireproof valve can detect the smoke temperature in the garage.
By adopting the technical scheme, the temperature of the flue gas in the underground garage is detected through the air-supplementing fire damper connected with the air-supplementing machine, so that the operation of the air-supplementing machine can be conveniently controlled according to the monitored temperature of the flue gas; the temperature of the smoke in the underground garage is detected through the exhaust fire damper connected with the exhaust fan, so that the operation of the exhaust fan is controlled conveniently according to the monitored smoke temperature.
In a specific embodiment, the vehicle is controlled according to the fire judgment result
The steps after the operational power of the blowers and fans in the library include:
detecting the air temperature in the garage through the air supplementing fire damper;
judging whether the air temperature exceeds a preset air temperature threshold value or not to obtain a first judgment result;
and controlling the opening and closing of the air supplement fire damper and the air supplement fan according to the first judgment result.
By adopting the technical scheme, the smoke temperature in the underground garage is detected through the air supplementing fire damper, when the smoke temperature is lower than the first smoke temperature threshold value, the fire disaster situation is not serious, the air supplementing machine and the air supplementing fire damper can be kept open, and new air is blown into the underground garage through the air supplementing machine and the air supplementing fire damper, so that dense smoke in the underground garage can be discharged out of the underground garage as soon as possible; when the smoke temperature is higher than the first smoke temperature threshold value, the fire disaster situation is serious, and oxygen in the underground garage can be gradually reduced by closing the air supplementing fan and the air supplementing fire prevention valve so as to extinguish the fire as soon as possible.
In a specific embodiment, the step of controlling the operation power of the air supply fan and the exhaust fan in the garage according to the fire judgment result further comprises:
detecting the temperature of the smoke in the garage through the exhaust fire damper;
judging whether the flue gas temperature exceeds a preset flue gas temperature threshold value or not to obtain a second judgment result;
and controlling the opening and closing of the exhaust fire damper and the exhaust fan according to the second judgment result.
By adopting the technical scheme, the exhaust fire damper is used for detecting the smoke temperature in the underground garage, when the smoke temperature is lower than the smoke temperature threshold value, the fire disaster situation is not serious, and the exhaust fan and the exhaust fire damper can be kept open, so that the dense smoke in the underground garage can be conveniently exhausted out of the underground garage through the exhaust fan and the exhaust fire damper as soon as possible; when the smoke temperature is higher than the smoke temperature threshold value, the fire disaster situation is serious, and the oxygen in the underground garage can be gradually reduced by closing the exhaust fan and the exhaust fire prevention valve so as to extinguish the fire as soon as possible.
In a specific implementation, the garage is divided into a plurality of air quality detection areas, each air quality detection area is provided with an air quality sensor for detecting the air quality data, and the air quality data detected by the air quality sensors have corresponding air quality data weights.
By adopting the technical scheme, the detection areas divided in the underground garage have different importance, and the detection areas with different importance correspond to different weights in order to make the technology perform the exhaust reaction when the air quality of the more important detection areas has problems.
In a specific possible embodiment, the counting the air quality data to obtain air quality statistical data includes:
acquiring the air quality data detected by all the air quality sensors in the garage;
and carrying out weighted statistics on the acquired air quality data according to the air quality data weight corresponding to each air quality data to obtain air quality statistical data.
By adopting the technical scheme, the air quality statistical data obtained by carrying out weighted calculation on the air quality data detected by the plurality of air quality sensors has higher referential property in the aspect of detecting the importance of the area.
The second aspect, the application provides a garage ventilation system of discharging fume adopts following technical scheme:
a garage ventilation and smoke evacuation system comprising:
the garage monitoring module is used for acquiring monitoring videos of the inside condition of the garage and air quality data;
the information processing module is used for processing the monitoring video to obtain an image processing result and counting the air quality data to obtain air quality statistical data;
the fire judgment result acquisition and processing module is used for judging the image processing result to obtain a fire judgment result and controlling the running states of a fan and an exhaust fan in the garage according to the fire judgment result;
the air quality statistical data processing and determining module is used for determining whether the air quality statistical data needs to be processed continuously according to the fire judgment result;
and the air quality statistical data processing module is used for controlling the running states of the air supplementing fan and the exhaust fan according to the air quality statistical data and a preset air quality statistical data threshold range when the air quality statistical data needs to be continuously processed.
By adopting the technical scheme, whether a fire disaster occurs in the underground garage can be conveniently identified by acquiring the video of the underground garage and then carrying out graphic processing on the acquired video, and meanwhile, the air quality in the underground garage is also detected, and if the fire disaster occurs, the dense smoke in the underground garage is preferentially discharged by controlling the operation of the air supplementing machine and the exhaust fan so as to reduce the harm caused by the dense smoke; further, if the fire does not happen and the problem of air quality in the underground garage is detected, the air in the garage is discharged and new air is discharged by controlling the operation of the air supplementing fan and the exhaust fan.
In a third aspect, the present application provides a computer device, which adopts the following technical solution: the garage ventilation and smoke exhaust system comprises a memory and a processor, wherein the memory is stored with a computer program which can be loaded by the processor and executes any one of the garage ventilation and smoke exhaust methods.
By adopting the technical scheme, whether a fire disaster occurs in the underground garage can be conveniently identified by acquiring the video of the underground garage and then carrying out graphic processing on the acquired video, and meanwhile, the air quality in the underground garage is also detected, and if the fire disaster occurs, the dense smoke in the underground garage is preferentially discharged by controlling the operation of the air supplementing machine and the exhaust fan so as to reduce the harm caused by the dense smoke; further, if the fire does not happen and the problem of air quality in the underground garage is detected, the air in the garage is discharged and new air is discharged by controlling the operation of the air supplementing fan and the exhaust fan.
In a fourth aspect, the present application provides a computer-readable storage medium, which adopts the following technical solutions: a computer program is stored which can be loaded by a processor and which implements any of the above described methods of ventilating and venting a garage.
By adopting the technical scheme, whether a fire disaster occurs in the underground garage can be conveniently identified by acquiring the video of the underground garage and then carrying out graphic processing on the acquired video, and meanwhile, the air quality in the underground garage is also detected, and if the fire disaster occurs, the dense smoke in the underground garage is preferentially discharged by controlling the operation of the air supplementing machine and the exhaust fan so as to reduce the harm caused by the dense smoke; further, if the fire does not happen and the problem of air quality in the underground garage is detected, the air in the garage is discharged and new air is discharged by controlling the operation of the air supplementing fan and the exhaust fan.
In summary, the present application includes at least one of the following beneficial technical effects:
1. whether have the conflagration breaing out in judging the underground garage through the mode with video monitoring and image processing to judge how the air quality is how through the mode that air quality sensor detected underground garage air quality, preferentially can in time discharge the dense cigarette in the underground garage through the operation of control air supply machine and exhaust fan when the conflagration breaing out, if the condition of problem appears in conflagration breaing out and air quality, also can in time trade the air in the underground garage through the operation of control air supply machine and exhaust fan, be convenient for like this promote underground garage's security.
2. When a fire disaster occurs, the power of a supplementary air blower for blowing new air into the underground garage is improved to the highest, and meanwhile, the working state of the exhaust blower is adjusted to be a smoke exhaust state, so that the efficiency of exhausting the thick smoke in the underground garage can be accelerated; detecting the air quality in the underground garage if no fire occurs in the garage;
3. the exhaust fire damper detects the smoke temperature in the underground garage, when the smoke temperature is lower than a smoke temperature threshold value, the fire situation is not serious, and the exhaust fan and the exhaust fire damper can be kept open, so that dense smoke in the underground garage can be discharged out of the underground garage as soon as possible through the exhaust fan and the exhaust fire damper; when the smoke temperature is higher than the smoke temperature threshold value, the fire disaster situation is serious, and the oxygen in the underground garage can be gradually reduced by closing the exhaust fan and the exhaust fire prevention valve so as to extinguish the fire as soon as possible.
Drawings
Fig. 1 is a schematic flow chart of a garage ventilation and smoke exhaust method in embodiment 1 of the present application.
Fig. 2 is a structural block diagram of a garage ventilation and smoke exhaust system in embodiment 2 of the present application.
Description of reference numerals: 100. a garage monitoring module; 200. an information processing module; 300. a fire judgment result acquisition processing module; 400. an air quality statistical data processing and determining module; 500. and the air quality statistical data processing module.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
Example 1
In order to further enhance the ventilation effect of the underground garage, a plurality of air supply wells and exhaust wells corresponding to the air supply wells one by one can be further built on the basis of ventilation only by lighting wells or automobile entrances and exits in the prior art. In the implementation, the blast well and the exhaust well vertically extend into the underground garage, and the top well mouths of the blast well and the exhaust well are communicated with the external environment of the underground garage.
And fan supplementing rooms are built at positions close to each air supply well in the underground garage, and each fan supplementing room is internally provided with a fan supplementing machine communicated with the air supply well through a first air inlet pipeline. Every mend fan still all stretches into underground garage's space through first air-out pipeline in, still be equipped with the benefit wind fire prevention valve that is used for controlling first air-out pipeline to lead to and close and first air-out pipeline amount of wind on the first air-out pipeline, and mend wind fire prevention valve and have the function that detects the temperature of first air-out pipeline apoplexy, mend the fan and still have power adjustable function. And a louver air opening which is arranged in the underground garage and close to the air supplementing machine room at the air outlet of the first air outlet pipeline is connected.
And a fan exhaust room is built at a position close to each air exhaust well in the underground garage, and an exhaust fan communicated with the air exhaust well through a second air outlet pipeline is installed in each fan exhaust room. Each exhaust fan is also communicated with the space of the underground garage through a second air inlet pipeline. And each second air inlet pipeline is provided with an air exhaust fire damper for controlling the opening and closing of the second air inlet pipeline and adjusting the air quantity in the second air inlet pipeline, and the air exhaust fire damper also has the function of detecting the temperature of air or smoke in the second air inlet pipeline. The exhaust fan and the air supplementing fan have the same power and are adjustable, and an air inlet of a second air inlet pipeline connected with the exhaust fan is connected with a shutter air inlet arranged in the underground garage and close to the exhaust fan room.
The embodiment 1 of the application discloses a garage ventilation and smoke exhaust method. Referring to fig. 1, the garage ventilation and smoke exhaust method comprises the following steps:
s100, acquiring monitoring video and air quality data of the garage interior condition.
In order to facilitate timely understanding of fire protection and traffic conditions in the underground garage, a plurality of cameras are arranged in the underground garage; in order to know the air quality condition in the underground garage in time, a plurality of air quality sensors are also arranged in the underground garage.
In the implementation, set up a camera every 200 square meters, in order to be convenient for shoot bigger scope, can install the camera on the heel post of underground garage, on drainage pipe or on the roof of underground garage inner space, improve the height of camera installation like this as far as possible, the camera of being convenient for obtains bigger shooting scope with the form of supplementary shooing. In order to further guarantee that complete and clear shooting videos in an underground garage can be obtained, a plurality of arranged cameras need to be distributed uniformly as much as possible.
In implementation, one air quality sensor is provided every 800 square meters. The interior space of underground garage is airtight relatively, and has parked a lot of fuel cars, and the fuel car can consume the oxygen in the air when burning oil, and when oxygen content in the underground garage became little, can make the fuel car can not fully burn petrol, can produce the carbon monoxide harmful to the human body when petrol can not fully burn. In the embodiment 1 of the present application, the main object detected by the air quality sensor is carbon monoxide, the main detection index is the carbon monoxide concentration in the underground garage space, and in the implementation, a set of carbon monoxide concentration data is measured every 5 to 8 minutes.
The area of 800 square meters corresponding to each air quality sensor is marked as an air quality detection area, and because the importance of the traffic position, the number of power supplies and cables, and the number of drainage and ventilation pipelines in each air quality detection area are different, the importance of different air quality detection areas is different, for example, if one air quality detection area contains a plurality of traffic dashes, the importance of the air quality detection area is naturally higher than that of the air quality detection area with less traffic dashes; if the number of power supplies and cables and the number of drain air ducts in one air quality detection area are large, the importance of the air quality detection area is naturally higher than that of the air quality detection area with the small number of other power supplies and cables and the number of drain air ducts; based on the above idea of determining the importance of an air quality detection region, different air quality data weights need to be matched with different air quality detection regions, the air quality data weight of the air quality detection region with higher importance is correspondingly higher, and the air quality data weight of the air quality detection region with lower importance is correspondingly lower.
In implementation, all the cameras and the air quality sensors are in communication connection with a system host computer which is used for data processing and controlling hardware equipment in the underground garage, monitoring videos in the underground garage shot through the cameras can be obtained through the system host computer, and air quality data of a corresponding detection area detected through the air quality sensors can be obtained through the system host computer.
And S200, processing the image and monitoring the video to obtain an image processing result, and counting the air quality data to obtain air quality statistical data.
After the monitoring video in the underground garage shot by the camera is obtained through the system host, the monitoring video is further required to be subjected to graphic processing, and the processing mode is as follows: and intercepting an image in the detection video once every 5 to 10 seconds, comparing the image with a pre-stored fire image training set, judging whether the image contains fire characteristics such as a fire source or smoke, and storing the judgment result and recording the judgment result as an image processing result.
Meanwhile, after the air quality data of each air quality detection area of the underground garage is acquired through the system host, the acquired air quality data is subjected to weighted calculation according to the air quality data weight value corresponding to each air quality detection area, and in embodiment 1, the air quality data refers to the concentration of carbon monoxide. The above-described weighting calculation method: matching the air quality data of each air quality detection area with a corresponding air quality data weight according to the corresponding relation between each air quality data and the corresponding air quality detection area; further, multiplying each air quality detection data by the corresponding air quality data weight and then adding the data together to obtain air quality statistical data, wherein the obtained air quality statistical data is used for representing the whole carbon monoxide concentration in the underground garage.
And S300, judging the image processing result to obtain a fire judgment result, and controlling the running states of a fan supplementing machine and an exhaust fan in the garage according to the fire judgment result.
If the image processing result obtained through S200 is the fire characteristic that the intercepted image contains fire sources or thick smoke, the system host simultaneously sends a blower supplementing starting signal and a first emergency signal to each blower supplementing machine in sequence, each blower supplementing machine is started according to the blower supplementing starting signal, further, each blower supplementing machine adjusts the running power of the blower supplementing machine to the maximum according to the first emergency signal, and therefore air in the air inlet shaft can be sucked into the inner space of the underground garage at the highest speed, and the flowing speed of the air in the underground garage is accelerated.
The system host sends a fan supplementing starting signal and a first emergency signal to the fan supplementing machine, and simultaneously sends an exhaust fan starting signal, a second emergency signal and a smoke discharging state conversion signal to each exhaust fan in sequence. It should be noted that: the exhaust fan has two working states, one is an exhaust state, and the exhaust state is also the default working state of the exhaust fan; the other is a smoke evacuation state. Each exhaust fan is started according to the exhaust and starting signals; then the exhaust fan adjusts the running power of the exhaust fan to the maximum according to the second emergency signal; furthermore, the exhaust fan also converts the working state from the default exhaust state to the smoke exhaust state according to the smoke exhaust state conversion signal. So, be convenient for in time discharge the exhaust shaft with the dense cigarette in the underground garage through the exhaust fan to further be convenient for dense cigarette discharges away from the exhaust fan, still be convenient for like this reduce the conflagration and take place the harm of dense cigarette in initial stage to the ordinary people who is detained underground garage, the fire fighter personnel of still being convenient for in time put out the fire source in time.
With the passage of time, if the fire source cannot be extinguished in time and tends to be further enlarged, the ordinary people and the fire fighters staying in the underground garage need to be warned to evacuate urgently. Further, as the fire increases, the temperature of the smoke generated by the fire and the temperature of the air in the underground garage also increase.
In the implementation, mend wind fire prevention valve and have the function that detects air temperature in the underground garage, and mend wind fire prevention valve and preset the air temperature threshold value, mend wind fire prevention valve and can judge whether air temperature surpasses predetermined air temperature threshold value and obtain first judged result, if first judged result is: the temperature of the air entering the underground garage through the air supplementing fire damper is greater than the air temperature threshold, the air supplementing fire damper is immediately closed to prevent the air in the air inlet shaft from entering the underground garage, and the air temperature threshold is set to 70 ℃ in the embodiment 1; meanwhile, the air supplement fire damper also sends an air supplement damper closing signal to the system host, and the system host closes the corresponding air supplement damper according to the air supplement damper closing signal after receiving the air supplement damper closing signal, so that the air supplement damper can be prevented from continuously blowing air to the air supplement fire damper. Therefore, the oxygen content in the underground garage is conveniently reduced so as to reduce the degree of open fire combustion, thereby being convenient for extinguishing the fire source as soon as possible.
In the implementation, the fire damper of airing exhaust has the function of detecting the air or dense smoke temperature through the fire damper of airing exhaust, and the fire damper of airing exhaust has preset flue gas temperature threshold, and the fire damper of airing exhaust can judge whether flue gas temperature surpasses preset flue gas temperature threshold and obtain the second judgement result, if the second judgement result is: when the temperature of the air or the dense smoke passing through the exhaust fire damper is higher than the temperature threshold of the smoke, the exhaust fire damper is immediately closed to prevent the air with low oxygen content and the dense smoke in the underground garage from being discharged into the exhaust shaft, and the temperature threshold of the smoke is set to 280 ℃ in the embodiment 1; meanwhile, the exhaust fire damper sends an exhaust fan closing signal to the system host, and the system host closes the corresponding exhaust fan after receiving the exhaust fan closing signal and the exhaust fan closing signal, so that the oxygen content in the underground garage is further reduced, and the fire source is extinguished as soon as possible.
And S400, determining whether the air quality statistical data needs to be processed continuously according to the fire judgment result.
The system host has a higher priority for handling fire conditions than for handling air quality data.
If the image processing result obtained in step S200 is that the intercepted image does not include fire characteristics such as a fire source or smoke, the system host continues to process the air quality statistical data obtained through the weighted calculation.
An air quality statistical data threshold range is preset in the system host, and the air quality statistical data threshold range includes an air quality statistical data minimum threshold and an air quality statistical data maximum threshold, in this embodiment 1, the air quality statistical data minimum threshold is set to 5ppm, and the air quality statistical data maximum threshold is set to 25 ppm.
S500, when the air quality statistical data need to be continuously processed, controlling the running states of the air supplementing fan and the exhaust fan according to the air quality statistical data and the preset air quality statistical data threshold range.
And every 5 to 8 minutes, the system host machine compares the air quality statistical data obtained through weighting calculation with a preset air quality statistical data threshold range:
and if the air quality statistical data is not higher than the minimum threshold of the air quality statistical data, namely the carbon monoxide concentration obtained through weighting calculation is not higher than 5ppm, which indicates that the carbon monoxide concentration in the underground garage is normal at the moment, the system host controls the air supply fan and the exhaust fan to stop working.
If the air quality statistical data is higher than the minimum threshold value of the air quality statistical data and not higher than the maximum threshold value of the air quality statistical data, namely the carbon monoxide concentration obtained through weighting calculation is higher than 5ppm but not higher than 25ppm, which indicates that the carbon monoxide concentration in the underground garage is slightly higher at the moment, the system host controls the air supplementing fan and the exhaust fan to be started, and adaptively adjusts the operating power of the air supplementing fan and the exhaust fan according to the carbon monoxide concentration obtained through weighting calculation, and it needs to be noted that the relationship between the carbon monoxide concentration obtained through weighting calculation and the operating power of the air supplementing fan and the exhaust fan is a direct ratio relationship. Therefore, the carbon monoxide concentration in the underground garage is reduced to below 5ppm under the condition of saving the power consumption of the air supply fan and the exhaust fan.
If the air quality statistical data is higher than the maximum threshold value of the air quality statistical data, namely the concentration of carbon monoxide obtained through weighted calculation is higher than 25ppm, which indicates that the concentration of the carbon monoxide in the underground garage exceeds the standard at the moment, the system host controls the air supply fan and the exhaust fan to work at the maximum operation power. Therefore, the carbon monoxide concentration in the underground garage can be timely reduced to reduce the harm of the overproof carbon monoxide to people, and finally the carbon monoxide concentration in the underground garage is reduced to be below 5 ppm.
In order to prevent the supplementary blower and the exhaust blower from being started frequently, the time interval between the start and the stop of the supplementary blower and the start and the stop of the exhaust blower are fixed to be 8 minutes.
Fig. 1 is a schematic flow chart of a garage ventilation and smoke exhaust method in one embodiment. It should be understood that, although the steps in the flowchart of fig. 1 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows; the steps are not limited to be performed in the exact order disclosed, and steps may be performed in other orders, unless explicitly stated otherwise; and at least some of the steps in fig. 1 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least some of the sub-steps or stages of other steps.
Example 2
The embodiment 2 of the application discloses a garage ventilation system of discharging fume. Referring to fig. 2, the garage ventilation and smoke exhaust system comprises:
the garage monitoring module 100 is used for acquiring monitoring videos of the inside condition of the garage and air quality data.
And the information processing module 200 is used for processing the monitoring video to obtain an image processing result and counting the air quality data to obtain air quality statistical data.
And the fire judgment result acquisition and processing module 300 is used for judging the image processing result to obtain a fire judgment result and controlling the running states of a fan and an exhaust fan in the garage according to the fire judgment result.
And an air quality statistical data processing and determining module 400, configured to determine whether the air quality statistical data needs to be processed continuously according to the fire judgment result.
And the air quality statistical data processing module 500 is used for controlling the running states of the air supplementing fan and the exhaust fan according to the air quality statistical data and a preset air quality statistical data threshold range when the air quality statistical data needs to be continuously processed.
Example 3
In this embodiment 3, a computer device is disclosed, which includes a memory and a processor, where the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the above-mentioned garage ventilation and smoke exhaust method. The steps of a garage ventilation and smoke exhaust method can be steps of a garage ventilation and smoke exhaust method in each of the above embodiments.
Example 4
In this embodiment 4, a computer-readable storage medium is disclosed, which stores a computer program that can be loaded by a processor and executes the above-mentioned garage ventilation and smoke exhaust method, and the computer-readable storage medium includes, for example: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. A garage ventilation and smoke exhaust method is characterized in that: the method comprises the following steps:
acquiring monitoring video and air quality data of the internal condition of the garage;
processing the monitoring video by images to obtain image processing results, and counting the air quality data to obtain air quality statistical data;
judging the image processing result to obtain a fire judgment result, and controlling the running states of a fan supplementing machine and an exhaust fan in the garage according to the fire judgment result;
determining whether the air quality statistical data needs to be processed continuously according to the fire judgment result;
and when the air quality statistical data needs to be continuously processed, controlling the running states of the air supplementing fan and the exhaust fan according to the air quality statistical data and a preset air quality statistical data threshold range.
2. The garage ventilation and smoke evacuation method of claim 1, wherein: according to the fire disaster judgment result, the operation state of the air supply fan and the exhaust fan in the garage is controlled, and the method comprises the following steps:
if the fire judgment result is that fire occurs in the garage, starting the air supplementing fan and the exhaust fan, enabling the air supplementing fan and the exhaust fan to operate at the maximum power, and adjusting the operation state of the exhaust fan to be a smoke exhaust state;
and if the fire judgment result indicates that no fire occurs in the garage, controlling the running states of the air supplementing fan and the exhaust fan according to the air quality statistical data and a preset air quality statistical data threshold range.
3. The garage ventilation and smoke evacuation method of claim 1, wherein: the air supplementing machine is connected with an air supplementing fire damper used for controlling the air supplementing quantity generated by the air supplementing machine, and the air supplementing fire damper can detect the air temperature in the garage; the exhaust fan is connected with an exhaust fireproof valve used for controlling the exhaust amount generated by the exhaust fan, and the exhaust fireproof valve can detect the smoke temperature in the garage.
4. The garage ventilation and smoke evacuation method of claim 3, wherein: the step of controlling the operation power of the air supply fan and the exhaust fan in the garage according to the fire judgment result comprises the following steps:
detecting the air temperature in the garage through the air supplementing fire damper;
judging whether the air temperature exceeds a preset air temperature threshold value or not to obtain a first judgment result;
and controlling the opening and closing of the air supplement fire damper and the air supplement fan according to the first judgment result.
5. The garage ventilation and smoke evacuation method of claim 4, wherein: the step after controlling the running power of the air supply fan and the exhaust fan in the garage according to the fire judgment result further comprises the following steps:
detecting the temperature of the smoke in the garage through the exhaust fire damper;
judging whether the flue gas temperature exceeds a preset flue gas temperature threshold value or not to obtain a second judgment result;
and controlling the opening and closing of the exhaust fire damper and the exhaust fan according to the second judgment result.
6. The garage ventilation and smoke evacuation method of claim 1, wherein: the garage type is divided into a plurality of air quality detection areas, and each air quality detection area is provided with an air quality sensor used for detecting air quality data, and the air quality data detected by the air quality sensors all have corresponding air quality data weights.
7. The garage ventilation and smoke evacuation method of claim 6, wherein: the statistics of the air quality data to obtain the air quality statistical data comprises the following steps:
acquiring the air quality data detected by all the air quality sensors in the garage;
and carrying out weighted statistics on the acquired air quality data according to the air quality data weight corresponding to each air quality data to obtain air quality statistical data.
8. The utility model provides a garage ventilation system of discharging fume which characterized in that: the method comprises the following steps:
the garage monitoring module (100) is used for acquiring monitoring videos and air quality data of the inside condition of the garage;
the information processing module (200) is used for processing the monitoring video to obtain an image processing result and counting the air quality data to obtain air quality statistical data;
the fire judgment result acquisition and processing module (300) is used for judging the image processing result to obtain a fire judgment result and controlling the running states of a fan and an exhaust fan in the garage according to the fire judgment result;
the air quality statistical data processing and determining module (400) is used for determining whether the air quality statistical data needs to be processed continuously according to the fire judgment result;
and the air quality statistical data processing module (500) is used for controlling the running states of the air supplementing fan and the exhaust fan according to the air quality statistical data and a preset air quality statistical data threshold range when the air quality statistical data needs to be continuously processed.
9. A computer apparatus comprising a memory and a processor, the memory having stored thereon a computer program that can be loaded by the processor and executed to perform the garage ventilation and smoke evacuation method of any of claims 1 to 7.
10. A computer-readable storage medium storing a computer program that can be loaded by a processor and that executes the garage ventilation and smoke evacuation method of any of claims 1 to 7.
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Application publication date: 20220426 |