CN112386854B - Building smoke prevention and discharge monitoring control system - Google Patents

Building smoke prevention and discharge monitoring control system Download PDF

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Publication number
CN112386854B
CN112386854B CN202011163545.6A CN202011163545A CN112386854B CN 112386854 B CN112386854 B CN 112386854B CN 202011163545 A CN202011163545 A CN 202011163545A CN 112386854 B CN112386854 B CN 112386854B
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smoke
fire
data
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exhaust
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CN112386854A (en
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张晋
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Zhongxiaohengan Beijing Technology Co ltd
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Zhongxiaohengan Beijing Technology Co ltd
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment
    • 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
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits

Abstract

The invention provides a building smoke prevention and exhaust monitoring control system, which comprises a smoke prevention and exhaust monitoring platform, a linkage controller, a fire alarm, a graphic display device, a cloud database, a smoke exhaust system, an air supplementing system and a positive pressure air supply system, wherein the linkage controller is connected with the control system; the smoke prevention and exhaust monitoring platform is electrically connected with the linkage controller through a bus; the linkage controller is electrically connected with the smoke exhaust system, the air supplementing system and the positive pressure air conveying system through buses respectively; the fire alarm is electrically connected with the linkage controller; the graphic display device is arranged on the smoke prevention and exhaust monitoring platform; and the cloud database is in data connection with the smoke prevention and discharge monitoring platform in a wireless data transmission mode.

Description

Building smoke prevention and discharge monitoring control system
Technical Field
The invention provides a building smoke prevention and exhaust monitoring control system, and belongs to the technical field of building fire fighting.
Background
At present, the known smoke prevention and exhaust control adopts a fire-fighting linkage controller to control a smoke prevention and exhaust fan through an output module; the input module is used for acquiring the on-off states of a pressurized air supply outlet, an electric smoke blocking vertical wall, a fire-fighting electric window opener, a smoke exhaust fire valve, a smoke exhaust valve (outlet) and an air supply outlet; the control power supply adopts an independent power supply mode, so that field wiring is complex and design is difficult; because the controller is shared by other fire-fighting systems, the programming logic is complex, the data information amount is huge, the field construction and debugging difficulty is high, and the debugging is difficult; and the working states of the smoke-proof fan, the positive pressure air feeder, the pressurized air supply outlet, the electric smoke-blocking vertical wall, the fire-fighting electric window-opening machine, the smoke-discharging fire-proof valve, the smoke-discharging valve (outlet) and the air supply outlet can not be patrolled, when a fire disaster happens, the faults that the fan fails to start, the pressurized air supply outlet, the electric smoke-blocking vertical wall, the fire-fighting electric window-opening machine, the smoke-discharging fire-proof valve and the smoke-discharging valve (outlet) are rusted, a valve needing to be opened and a valve needing to be closed can not act and the like easily occur, so that the air supplementing system can not play a due role.
Disclosure of Invention
The invention provides a building smoke prevention and exhaust monitoring control system, which is used for solving the problems of higher construction difficulty, low control efficiency and low accuracy of the existing smoke prevention and exhaust monitoring control system and adopts the following technical scheme:
a building smoke prevention and exhaust monitoring control system comprises a smoke prevention and exhaust monitoring platform, a linkage controller, a fire alarm, a graphic display device, a cloud database, a smoke exhaust system, an air supplement system and a positive pressure air supply system;
the system comprises a linkage controller, a smoke prevention and discharge monitoring platform, a cloud database and a control system, wherein the smoke prevention and discharge monitoring platform is electrically connected with the linkage controller through a bus and is used for monitoring and receiving the starting operation state of the linkage controller and sending the working operation state and monitoring data of the linkage controller, a smoke discharge system, an air supplement system and a positive pressure air supply system to the cloud database;
the linkage controller is electrically connected with the smoke exhaust system, the air supplementing system and the positive pressure air conveying system through buses respectively; the linkage controller is used for controlling the operation of the smoke exhaust system, the air supplement system and the positive pressure air supply system and sending the operation state and monitoring data of the smoke exhaust system, the air supplement system and the positive pressure air supply system to the smoke prevention and discharge monitoring platform;
the fire alarm is electrically connected with the linkage controller and used for alarming when a fire disaster occurs;
the graphic display device is arranged on the smoke prevention and exhaust monitoring platform and is used for displaying the fire position and the working running state and monitoring data of the linkage controller, the smoke exhaust system, the air supplement system and the positive pressure air supply system;
the cloud database is in data connection with the smoke prevention and exhaust monitoring platform in a wireless data transmission mode and is used for storing working operation states and monitoring data of the linkage controller, the smoke exhaust system, the air supplementing system and the positive pressure air conveying system.
Furthermore, the smoke exhaust system comprises an exhaust controller, a first fire emergency evacuation air valve actuator, a smoke exhaust fan, a fire input and output module and a smoke exhaust special detector; the exhaust controller is electrically connected with the joint defense controller, and is respectively and electrically connected with the first fire emergency evacuation air valve actuator, the smoke exhaust fan, the fire input/output module and the smoke exhaust special detector;
the exhaust controller is used for managing and controlling the first fire-fighting emergency evacuation air valve actuator, the smoke exhaust fan, the fire-fighting input and output module and the smoke exhaust special detector;
the first fire-fighting emergency evacuation air valve actuator is connected with the smoke exhaust controller through a non-polar two-bus and is supplied with power in a centralized manner through the smoke exhaust controller; the first fire-fighting emergency evacuation air valve actuator is also electrically connected with the smoke exhaust valve and the smoke exhaust fire prevention valve;
the smoke exhaust fan is electrically connected with the exhaust controller;
the fire-fighting input and output module is connected with the smoke-proof controller, the smoke exhaust controller and the fire-fighting emergency evacuation residual pressure controller in the positive pressure air supply system through a non-polar two-bus, and is used for supplying power in a centralized manner through the smoke-proof controller, the smoke exhaust controller and the fire-fighting emergency evacuation residual pressure controller; the fire-fighting input and output module is also electrically connected with the electric smoke-blocking vertical wall and the fire-fighting electric window opener;
the special smoke exhaust detector is used for monitoring the concentration of toxic and harmful gases in the smoke prevention subarea in real time and sending the collected concentration of the toxic and harmful gases to the smoke exhaust controller through the nonpolar two buses.
Further, the controller that discharges fume utilizes the special detector that discharges fume to detect the poisonous and harmful gas concentration in the smoke protection subregion to carry out smoke exhaust fan on-off control according to harmful gas concentration, include:
step 1, the special smoke exhaust detector detects the concentration of toxic and harmful gas in a smoke prevention subarea, judges the concentration of the toxic and harmful gas, and sends the concentration value of the toxic and harmful gas in the smoke prevention subarea to a smoke prevention and exhaust monitoring platform through the smoke exhaust controller and the joint defense controller when the concentration of the toxic and harmful gas reaches or exceeds a first concentration alarm threshold value;
step 2, when the smoke prevention and control platform receives the concentration of the toxic and harmful gas in the smoke prevention subarea exceeding a first concentration alarm threshold value, early warning display is carried out through a graphic display device;
step 3, the smoke exhaust controller raises and adjusts the gas sampling frequency of the special smoke exhaust detector, and judges the change trend and the change rate of the concentration of the toxic and harmful gas according to the concentration value of the toxic and harmful gas detected by the special smoke exhaust detector;
step 4, if the concentration of the toxic and harmful gases gradually rises and the increasing rate of the concentration of the toxic and harmful gases reaches or exceeds a concentration increasing rate threshold value, immediately turning on a smoke exhaust fan and giving an alarm through a fire alarm; and prompting a worker to check if the concentration of the toxic and harmful gas gradually decreases or the increasing rate of the concentration of the toxic and harmful gas is lower than a concentration increasing rate threshold value.
Further, the controller that discharges fume utilizes the special detector that discharges fume to detect the poisonous and harmful gas concentration in the smoke protection subregion to carry out smoke exhaust fan switching control according to harmful gas concentration, still include:
when the special smoke exhaust detector detects that the concentration of the toxic and harmful gas reaches or exceeds a second concentration alarm threshold value, the smoke exhaust controller immediately turns on the smoke exhaust fan and gives an alarm through the fire alarm, and meanwhile, the concentration value of the toxic and harmful gas in the smoke prevention subarea at the moment is sent to the smoke prevention and exhaust monitoring platform through the smoke exhaust controller and the joint defense controller.
Further, the air supplementing system comprises a smoke-proof controller, a second fire emergency evacuation air valve actuator, an air supplementing fan and a first air supplementing air quality detector;
the second fire-fighting emergency evacuation air valve actuator is connected with the smoke-proof controller through a non-polar second bus and is used for carrying out centralized power supply through the smoke-proof controller; the second fire-fighting emergency evacuation air valve actuator is used for receiving the opening and closing commands sent by the smoke exhaust controller and sending the working state of the air supply outlet to the smoke prevention controller;
the air supplementing fan is connected with the smoke-proof controller through a non-polar two-bus and used for providing air supplementing;
the first air supplementing air quality detector is connected with the smoke-proof controller through a non-polar two-bus and is used for carrying out centralized power supply through the smoke-proof controller; the first air supplementing air quality detector is used for collecting the concentration of toxic and harmful gases and sending the collected concentration of the toxic and harmful gases to the smoke-proof controller through the non-polar two buses;
and the smoke-proof controller is used for controlling and managing the operation of the second fire-fighting emergency evacuation air valve actuator, the air supplementing fan and the first air supplementing air quality detector.
Furthermore, the positive pressure air supply system comprises a fire emergency evacuation excess pressure controller, a fire emergency evacuation electric pressure relief air valve actuator, a third fire emergency evacuation air valve actuator, a fire emergency evacuation excess pressure detector, a second air supplementing air quality detector and a positive pressure air feeder;
the fire emergency evacuation electric pressure relief air valve actuator data line is connected with the fire emergency evacuation residual pressure controller, and is used for receiving an angle adjusting command sent by the fire emergency evacuation residual pressure controller and sending the working state of the bypass pressure relief valve to the fire emergency evacuation residual pressure controller;
the third fire-fighting emergency evacuation air valve actuator is connected with the fire-fighting emergency evacuation residual pressure controller through a non-polar two-bus and is used for carrying out centralized power supply through the fire-fighting emergency evacuation residual pressure controller; the third fire-fighting emergency evacuation air valve actuator is used for receiving opening and closing commands sent by the fire-fighting emergency evacuation excess pressure controller and sending the working state of the pressurization air port to the fire-fighting emergency evacuation excess pressure controller;
the fire-fighting emergency evacuation residual pressure detector is connected with the fire-fighting emergency evacuation residual pressure controller through a non-polar two-bus, and is used for monitoring residual pressure values on two sides of the fire door in real time by supplying power to the second air supplementing air quality detector in a centralized manner through the controller and sending the collected residual pressure values to the fire-fighting emergency evacuation residual pressure controller through the two-bus;
the second air supplementing air quality detector is connected with the fire-fighting emergency evacuation residual pressure controller through a non-polar second bus and performs centralized power supply through the fire-fighting emergency evacuation residual pressure controller; the second air supplementing air quality detector is used for collecting the concentration of toxic and harmful gases and sending the collected concentration of the toxic and harmful gases to the fire-fighting emergency evacuation residual pressure controller through a non-polar second bus;
the positive pressure blower is electrically connected with the fire emergency evacuation residual pressure detector and is used for carrying out positive pressure air supply;
the fire-fighting emergency evacuation residual pressure controller is used for managing and controlling the fire-fighting emergency evacuation electric pressure relief air valve actuator, the third fire-fighting emergency evacuation air valve actuator, the fire-fighting emergency evacuation residual pressure detector, the second air supplementing air quality detector and the positive pressure air feeder.
Further, the process that the smoke prevention and control platform sends the working operation states and the monitoring data of the linkage controller, the smoke exhaust system, the air supplement system and the positive pressure air supply system to the cloud database comprises the following steps:
the method comprises the following steps that firstly, the smoke prevention and exhaust monitoring platform sends a long-distance data transmission request to a cloud database according to a preset data sending time interval;
step two, when receiving a data uploading request sent by the smoke prevention and exhaust monitoring platform, the cloud database carries out self-checking on the storage space of the cloud database, and when the residual space of the cloud database does not reach a first residual storage space threshold value, the smoke prevention and exhaust monitoring platform is allowed to carry out data sending; when the residual space of the cloud database reaches or exceeds a first residual storage space threshold value, adjusting the smoke prevention and exhaust monitoring platform according to a preset data sending time interval, and allowing the smoke prevention and exhaust monitoring platform to send data; when the residual space of the cloud database reaches a second residual storage space threshold value, sending a data identification request to the smoke prevention and exhaust monitoring platform;
after receiving the data identification request, the smoke prevention and exhaust monitoring platform identifies whether fault information and/or fire information exist in the data needing to be uploaded at this time, and sends an identification result to a cloud database;
step four, the cloud database receives the identification result, and if the identification result is that fault information and/or fire information exist in the data which needs to be uploaded at this time, the smoke prevention and exhaust monitoring platform is allowed to send the data immediately; and if the identification result is that no fault information and/or fire information exists in the data which needs to be uploaded at this time, the cloud database deletes historical data according to historical recording time and a preset data space proportion, and after the historical data is deleted according to the preset data space proportion, the smoke prevention and exhaust monitoring platform is allowed to send the data.
Further, adjusting the smoke prevention and exhaust monitoring platform according to a preset data sending time interval according to the following formula:
Figure BDA0002745016260000041
Ta＝T+ΔT
wherein, TaIndicating the adjusted data transmission time interval; Δ T represents a data transmission time interval adjustment amount; lambda [ alpha ]1And λ2Denotes the time interval adjustment factor, λ1Has a value range of 0.78-0.86, lambda2The value range of (A) is 0.82-0.93; t is0An initial default time interval representing data transmission; t isiThe uploading time for the smoke prevention and exhaust monitoring platform to send to the cloud database for the ith time is represented; n represents the total times of sending data to the cloud database by the smoke prevention and exhaust monitoring platform; hiThe uploaded data information quantity value sent to the cloud database by the smoke prevention and discharge monitoring platform for the ith time is represented; hmaxRepresenting the maximum value of the single uploaded data information quantity sent to the cloud database by the smoke prevention and discharge monitoring platform; hminRepresenting the minimum value of the information quantity of the single uploaded data sent by the smoke prevention and exhaust monitoring platform to the cloud database; t ismaxRepresenting the maximum time for uploading data used by the smoke prevention and exhaust monitoring platform to send the data to the cloud database once; t isminThe minimum time for uploading data used by the smoke prevention and exhaust monitoring platform to send the data to the cloud database once is represented; c1Representing the occupied space capacity value in the cloud database; c2Representing the value of the amount of space capacity remaining in the cloud database.
Further, in the fourth step, after the cloud database immediately allows the smoke prevention and exhaust monitoring platform to send data according to the identification result, and after the cloud database completes storage of the data sent by the smoke prevention and exhaust monitoring platform, the cloud database deletes historical data according to historical recording time and according to a preset data space proportion.
Further, the cloud database deletes the historical data according to the historical recording time and a preset data space proportion, and the method comprises the following steps:
the method comprises the steps that firstly, the data size of data to be deleted is determined according to a preset data space proportion, and the data to be deleted are selected from a current cloud database according to the time sequence of data storage time from morning to evening;
secondly, identifying the data type in the data to be deleted, extracting data corresponding to fault information and fire information in the data to be deleted, and continuously storing the data to be used as reserved data;
determining the data volume of the retained data, and selecting data with the same data volume as the retained data from the remaining data in the cloud database according to the time sequence of the data storage time from early to late as the data to be deleted;
fourthly, repeating the contents of the second step and the third step until the data to be deleted which has the same data quantity corresponding to the preset data space proportion and does not contain fault information and fire information is obtained;
and fifthly, deleting the data to be deleted which has the same data quantity corresponding to the preset data space proportion and does not contain fault information and fire information.
The invention has the beneficial effects that:
according to the building smoke prevention and exhaust monitoring control system provided by the invention, the exhaust system, the air supplement system and the positive pressure air supply system are three systems which independently run, and the programming logic quantity and the data information processing quantity in the construction process can be effectively reduced through the structures of the exhaust system, the air supplement system and the positive pressure air supply system, so that the construction difficulty and the debugging difficulty are greatly reduced. Meanwhile, in the operation process of the smoke prevention and exhaust monitoring control system, the mutual interference among the systems can be effectively reduced, and the monitoring efficiency and the operation stability of the smoke prevention and exhaust monitoring control system are improved.
Meanwhile, the smoke detection error rate can be effectively reduced by the detection mode aiming at toxic and harmful gases in the smoke exhaust system, and the probability of fire misinformation is further reduced. The accuracy of smog gas detection is improved, and then the monitoring accuracy of whole smoke prevention and exhaust monitoring control system is improved.
On the other hand, the reasonable balance between the balance data transmission quality and the data storage space of the cloud database can be effectively improved through the data transmission mode of the smoke prevention and discharge monitoring platform and the cloud database. When the timeliness of data transmission is guaranteed, the problem of saturation of the storage space of the cloud database is effectively prevented, and therefore the problems of reduction of data transmission efficiency, data loss and data storage failure caused by saturation of the storage space of the cloud database are prevented. The success rate of data transmission and storage is greatly improved.
Drawings
FIG. 1 is a system block diagram of the system of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The embodiment of the invention provides a building smoke prevention and exhaust monitoring control system, which comprises a smoke prevention and exhaust monitoring platform, a linkage controller, a fire alarm, a graphic display device, a cloud database, a smoke exhaust system, an air supplementing system and a positive pressure air supply system, wherein the linkage controller is connected with the control system through a linkage;
the system comprises a linkage controller, a smoke prevention and discharge monitoring platform, a cloud database and a control system, wherein the smoke prevention and discharge monitoring platform is electrically connected with the linkage controller through a bus and is used for monitoring and receiving the starting operation state of the linkage controller and sending the working operation state and monitoring data of the linkage controller, a smoke discharge system, an air supplement system and a positive pressure air supply system to the cloud database;
the linkage controller is electrically connected with the smoke exhaust system, the air supplementing system and the positive pressure air conveying system through buses respectively; the linkage controller is used for controlling the operation of the smoke exhaust system, the air supplement system and the positive pressure air supply system and sending the operation state and monitoring data of the smoke exhaust system, the air supplement system and the positive pressure air supply system to the smoke prevention and discharge monitoring platform;
the fire alarm is electrically connected with the linkage controller and used for alarming when a fire disaster occurs;
the graphic display device is arranged on the smoke prevention and exhaust monitoring platform and is used for displaying the fire position and the working running state and monitoring data of the linkage controller, the smoke exhaust system, the air supplement system and the positive pressure air supply system;
the cloud database is in data connection with the smoke prevention and exhaust monitoring platform in a wireless data transmission mode and is used for storing working operation states and monitoring data of the linkage controller, the smoke exhaust system, the air supplementing system and the positive pressure air conveying system.
The working principle of the technical scheme is as follows: the building smoke prevention and exhaust monitoring control system is divided into 3 small systems by taking a controller as a core: an air supplement system (taking a smoke prevention controller as a core), a smoke exhaust system (taking a smoke exhaust controller as a core) and a positive pressure air supply system (taking a fire-fighting emergency evacuation residual pressure controller as a core); each small system can work independently, and all terminal devices are supplied with power in a centralized way through a non-polar two-bus or signal line, so that the construction difficulty is reduced, and the site construction wiring and equipment cost are saved; 3 the small system is connected to the smoke prevention and exhaust monitor through a CAN bus, so that centralized management is facilitated; the system regularly patrols and examines the working state of smoke prevention and exhaust equipment (smoke prevention and exhaust fan, positive pressure blower, pressurized air supply outlet, electric smoke blocking vertical wall, fire-fighting electric window opener, smoke exhaust fire valve, smoke exhaust valve (outlet) and air supply outlet), and ensures that the air supplement system can play the roles of fire prevention and disaster reduction and casualties reduction when a fire disaster occurs. And then, the three systems are controlled and monitored by the linkage controller, data extraction is carried out, and the running states and monitoring data of the smoke exhaust system, the air supplement system and the positive pressure air supply system are sent to the smoke prevention and exhaust monitoring platform. And the smoke prevention and discharge monitoring platform displays system operation parameters and alarm information through a graphic display device. Meanwhile, the smoke prevention and exhaust monitoring platform and the cloud database are in data transmission, and work running states and monitoring data of the linkage controller, the smoke exhaust system, the air supplement system and the positive pressure air supply system are stored.
The effect of the above technical scheme is as follows: the air exhaust system, the air supplement system and the positive pressure air supply system are three systems which independently run, programming logic amount and data information processing amount in the construction process can be effectively reduced through the structures of the air exhaust system, the air supplement system and the positive pressure air supply system, and construction difficulty and debugging difficulty are greatly reduced. Meanwhile, in the operation process of the smoke prevention and exhaust monitoring control system, the mutual interference among the systems can be effectively reduced, and the monitoring efficiency and the operation stability of the smoke prevention and exhaust monitoring control system are improved.
According to one embodiment of the invention, the smoke exhaust system comprises an exhaust controller, a first fire emergency evacuation air valve actuator, a smoke exhaust fan, a fire input and output module and a smoke exhaust special detector; the exhaust controller is electrically connected with the joint defense controller, and is respectively and electrically connected with the first fire emergency evacuation air valve actuator, the smoke exhaust fan, the fire input/output module and the smoke exhaust special detector;
the exhaust controller is used for managing and controlling the first fire-fighting emergency evacuation air valve actuator, the smoke exhaust fan, the fire-fighting input and output module and the smoke exhaust special detector;
the first fire-fighting emergency evacuation air valve actuator is connected with the smoke exhaust controller through a non-polar two-bus and is supplied with power in a centralized manner through the smoke exhaust controller; the first fire-fighting emergency evacuation air valve actuator is also electrically connected with the smoke exhaust valve and the smoke exhaust fire prevention valve;
the smoke exhaust fan is electrically connected with the exhaust controller;
the fire-fighting input and output module is connected with the smoke-proof controller, the smoke exhaust controller and the fire-fighting emergency evacuation residual pressure controller in the positive pressure air supply system through a non-polar two-bus, and is used for supplying power in a centralized manner through the smoke-proof controller, the smoke exhaust controller and the fire-fighting emergency evacuation residual pressure controller; the fire-fighting input and output module is also electrically connected with the electric smoke-blocking vertical wall and the fire-fighting electric window opener;
the special smoke exhaust detector is used for monitoring the concentration of toxic and harmful gases in the smoke prevention subarea in real time and sending the collected concentration of the toxic and harmful gases to the smoke exhaust controller through the nonpolar two buses.
The working principle of the technical scheme is as follows: the smoke exhaust controller manages the smoke exhaust special detector, the first fire emergency evacuation air valve actuator and the fire input and output module. Specifically, the method comprises the following steps: the first fire-fighting emergency evacuation air valve actuator is controlled by the smoke discharge controller, and then the smoke discharge fire prevention valve and the smoke discharge valve (port) are controlled to be opened and closed by the first fire-fighting emergency evacuation air valve actuator; the device is connected with a smoke exhaust controller through a non-polar two-bus, is supplied with power in a centralized way through the smoke exhaust controller, receives opening and closing commands sent by the smoke exhaust controller, and simultaneously sends the working states of a smoke exhaust fire damper and a smoke exhaust valve (port) to the smoke exhaust controller; the fire-fighting input and output module is controlled by the smoke exhaust controller, and then the fire-fighting input and output module controls the opening and closing of the electric smoke-blocking vertical wall and the fire-fighting electric window opening machine; the non-polar two buses are connected with a smoke-proof controller, a smoke exhaust controller and a fire-fighting emergency evacuation residual pressure control, the centralized power supply is controlled through the smoke-proof controller, the smoke exhaust controller and the fire-fighting emergency evacuation residual pressure control, opening and closing commands sent by the controller are received, the working states of an electric smoke-blocking vertical wall and an electric fire-fighting window opener are sent to the smoke-proof controller, the smoke exhaust controller and the fire-fighting emergency evacuation residual pressure control
The smoke exhaust controller controls the special smoke exhaust detector, the special smoke exhaust detector monitors the concentration of toxic and harmful gases in the smoke prevention subarea in real time, and when the toxic and harmful gases exceed the set concentration, the smoke exhaust system and the air supply system are automatically opened, and the concentration of the toxic and harmful gases is adjusted to a normal value; the smoke prevention and exhaust self-forming system is guaranteed, interference of other systems is avoided, and reliability and design difficulty are improved; the device is connected with the smoke exhaust controller through a non-polar two-bus, and the collected toxic and harmful gas concentration is transmitted to the smoke exhaust controller through the two-bus by centralized power supply of the smoke exhaust controller.
Wherein, the process that smoke controller management special detector, first emergent sparse blast gate executor of fire control and fire control input and output module of discharging fume includes:
firstly, a smoke exhaust controller and a smoke exhaust fan are connected through a signal wire, the power supply voltage, the current, the phase and the wind speed of the smoke exhaust fan are collected, the working state of the smoke exhaust fan is judged, the smoke exhaust fan can be controlled to be started and stopped, and the working state of the smoke exhaust fan is manually and automatically inspected; the working state of the manual and automatic inspection smoke exhaust fan refers to that the smoke exhaust controller is started to inspect the smoke exhaust fan in a manual or automatic mode.
Then, the smoke exhaust controller and the first fire-fighting emergency evacuation air valve actuator are connected through a non-polar two-bus, the first fire-fighting emergency evacuation air valve actuator is controlled to open and close, the working state of the first fire-fighting emergency evacuation air valve actuator is received, the first fire-fighting emergency evacuation air valve actuator is inspected manually and automatically, whether the first fire-fighting emergency evacuation air valve actuator works normally or not is controlled, and the equipment is guaranteed to work normally when a fire disaster is sent; when the smoke exhaust fire damper is automatically closed when the smoke exhaust fire damper is received by the first fire emergency evacuation air valve actuator and reaches 280 ℃ through the smoke exhaust controller, the smoke exhaust fan is automatically closed, and flame is prevented from spreading to other areas through the smoke exhaust port;
then, the smoke exhaust controller and the fire-fighting input and output module are connected through a non-polar two-bus, the fire-fighting input and output module controls the opening and closing actions of the electric smoke-blocking vertical wall and the fire-fighting electric window opener, receives the working states of the electric smoke-blocking vertical wall and the fire-fighting electric window opener, and inspects whether the electric smoke-blocking vertical wall and the fire-fighting electric window opener work normally or not in a manual and automatic mode to ensure that equipment can work normally when a fire hazard is sent;
then, a smoke exhaust controller and a special smoke exhaust detector are connected through a nonpolar two-bus, the special smoke exhaust detector acquires the concentration of toxic and harmful gases in a smoke prevention subarea and feeds the concentration of the toxic and harmful gases back to the smoke exhaust controller, and when the concentration of the toxic and harmful gases exceeds an alarm value, the smoke exhaust controller automatically turns on a smoke exhaust fan; when the concentration of the toxic and harmful gas reaches a safe value, the smoke exhaust controller automatically turns off the smoke exhaust fan;
finally, the smoke exhaust controller is connected with the smoke prevention and exhaust monitor through a CAN bus and uploads alarm, fault and working state information collected by all the smoke exhaust controllers; and receiving a control command issued by the smoke prevention and exhaust monitor, and executing control information.
The effect of the above technical scheme is as follows: and a nonpolar two-bus communication power supply mode is adopted, and the nonpolar two-bus can provide communication while providing a power supply in a centralized manner, so that the construction difficulty is reduced, and the construction cost is saved. Meanwhile, the stability and the monitoring accuracy of the operation of the smoke exhaust system can be effectively improved through the structure and the processing procedure of the smoke exhaust system. The structure through the system of discharging fume can effectively reduce the construction degree of difficulty and maintain the complexity to effectively reduce system's trouble incidence. Further improving the operation reliability of the system, improving the fire prevention and disaster reduction intensity when a fire disaster occurs, and effectively reducing casualties.
In an embodiment of the present invention, the smoke exhaust controller detects the concentration of toxic and harmful gases in the smoke-proof partition by using a smoke exhaust dedicated detector, and performs on-off control of the smoke exhaust fan according to the concentration of the harmful gases, including:
step 1, the special smoke exhaust detector detects the concentration of toxic and harmful gas in a smoke prevention subarea, judges the concentration of the toxic and harmful gas, and sends the concentration value of the toxic and harmful gas in the smoke prevention subarea to a smoke prevention and exhaust monitoring platform through the smoke exhaust controller and the joint defense controller when the concentration of the toxic and harmful gas reaches or exceeds a first concentration alarm threshold value;
step 2, when the smoke prevention and control platform receives the concentration of the toxic and harmful gas in the smoke prevention subarea exceeding a first concentration alarm threshold value, early warning display is carried out through a graphic display device;
step 3, the smoke exhaust controller raises and adjusts the gas sampling frequency of the special smoke exhaust detector, and judges the change trend and the change rate of the concentration of the toxic and harmful gas according to the concentration value of the toxic and harmful gas detected by the special smoke exhaust detector;
step 4, if the concentration of the toxic and harmful gases gradually rises and the increasing rate of the concentration of the toxic and harmful gases reaches or exceeds a concentration increasing rate threshold value, immediately turning on a smoke exhaust fan and giving an alarm through a fire alarm; and prompting a worker to check if the concentration of the toxic and harmful gas gradually decreases or the increasing rate of the concentration of the toxic and harmful gas is lower than a concentration increasing rate threshold value.
Wherein, the controller that discharges fume utilizes the special detector that discharges fume to detect the poisonous and harmful gas concentration in the smoke protection subregion to carry out smoke exhaust fan switching control according to harmful gas concentration, still include:
when the special smoke exhaust detector detects that the concentration of the toxic and harmful gas reaches or exceeds a second concentration alarm threshold value, the smoke exhaust controller immediately turns on the smoke exhaust fan and gives an alarm through the fire alarm, and meanwhile, the concentration value of the toxic and harmful gas in the smoke prevention subarea at the moment is sent to the smoke prevention and exhaust monitoring platform through the smoke exhaust controller and the joint defense controller.
The effect of the above technical scheme is as follows: through the detection mode to poisonous and harmful gas in the system of discharging fume, can effectively reduce the emergence of smog detection error rate, and then reduce the probability of the wrong report of condition of a fire. The accuracy of smog gas detection is improved, and then the monitoring accuracy of whole smoke prevention and exhaust monitoring control system is improved.
According to one embodiment of the invention, the air supplementing system comprises a smoke-proof controller, a second fire-fighting emergency evacuation air valve actuator, an air supplementing fan and a first air supplementing air quality detector; wherein, the first wind-supplementing air quality detector can also be called as a first wind-supplying (supplementing) air quality detector;
the second fire-fighting emergency evacuation air valve actuator is connected with the smoke-proof controller through a non-polar second bus and is used for carrying out centralized power supply through the smoke-proof controller; the second fire-fighting emergency evacuation air valve actuator is used for receiving the opening and closing commands sent by the smoke exhaust controller and sending the working state of the air supply outlet to the smoke prevention controller;
the air supplementing fan is connected with the smoke-proof controller through a non-polar two-bus and used for providing air supplementing;
the first air supplementing air quality detector is connected with the smoke-proof controller through a non-polar two-bus and is used for carrying out centralized power supply through the smoke-proof controller; the first air supplementing air quality detector is used for collecting the concentration of toxic and harmful gases and sending the collected concentration of the toxic and harmful gases to the smoke-proof controller through the non-polar two buses;
and the smoke-proof controller is used for controlling and managing the operation of the second fire-fighting emergency evacuation air valve actuator, the air supplementing fan and the first air supplementing air quality detector.
The working principle of the technical scheme is as follows: managing a fire-fighting emergency evacuation air valve actuator, an air supplementing fan and a first air supply (supplementing) air quality detector through a smoke-proof controller;
the opening and closing of the air supply outlet are controlled by a second fire emergency evacuation air valve actuator; the system is connected with a smoke-proof controller through a non-polar two-bus, is supplied with power in a centralized way through the smoke-proof controller, receives opening and closing commands sent by the smoke-proof controller, sends the working state of an air supply outlet and sends the working state of the air supply outlet to the smoke-proof controller;
the concentration of toxic and harmful gases at the air inlet is detected in real time through a first air supply (air supplement) air quality detector, so that the toxic and harmful gases are prevented from entering a smoke-proof subarea through an air supplement fan to cause secondary damage; the device is connected with the smoke-proof controller through the non-polar two buses, and is used for supplying power in a centralized manner through the smoke-proof controller and sending the collected concentration of the toxic and harmful gases to the smoke-proof controller through the two buses.
Wherein, the emergent sparse blast gate executor of fire control of smoke control ware management, air supply fan and first air supply air quality detector's process includes:
firstly, connecting a smoke-proof controller and an air supplementing fan through a signal wire, collecting the power supply voltage, current, phase and air speed of the air supplementing fan by using the smoke-proof controller, judging the working state of the air supplementing fan, controlling the air supplementing fan to start and stop, and polling the working state of the air supplementing fan by using the smoke-proof controller in a mode of manually and automatically controlling the smoke-proof controller;
then, a smoke-proof controller and a fire-fighting emergency evacuation air valve actuator are connected through a non-polar two-bus, the smoke-proof controller is used for controlling a second fire-fighting emergency evacuation air valve actuator, the opening and closing actions of an air supply opening are controlled through the second fire-fighting emergency evacuation air valve actuator, meanwhile, the smoke-proof controller receives the working state of the second fire-fighting emergency evacuation air valve actuator in real time, the smoke-proof controller is used for polling the second fire-fighting emergency evacuation air valve actuator to control whether the second fire-fighting emergency evacuation air valve actuator works normally or not in a manual and automatic control mode of the smoke-proof controller, and the equipment is guaranteed to work normally when a fire disaster is sent;
then, the smoke-proof controller and a first air-supplementing air quality detector are connected through a non-polar two-bus, the concentration of toxic and harmful gases in air of an air supply outlet is judged by the first air-supplementing air quality detector, the concentration of the toxic and harmful gases is fed back to the smoke-proof controller, and when the concentration of the toxic and harmful gases exceeds an alarm value, the smoke-proof controller automatically closes an air-supplementing fan;
and finally, the smoke-proof controller is connected with the smoke-proof and exhaust monitor through a CAN bus, uploads alarm, fault and working state information collected by the smoke-proof controller, receives a control command sent by the smoke-proof and exhaust monitor, and executes the control information.
The effect of the above technical scheme is as follows: the structure and the processing procedure of the air supplementing system can effectively improve the running stability and the monitoring accuracy of the air supplementing system, and can effectively improve the air supplementing efficiency and the smoke-proof strength and improve the personnel safety guarantee strength when a fire disaster occurs. Meanwhile, the construction difficulty and the maintenance complexity can be effectively reduced through the structure of the air supplementing system, and the fault occurrence rate of the air supplementing system and the whole smoke-proof monitoring system is effectively reduced. Further improve the operating reliability of the smoke-proof monitoring system, improve the fire prevention and disaster reduction degree when a fire disaster occurs, and effectively reduce casualties.
According to one embodiment of the invention, the positive pressure air supply system comprises a fire-fighting emergency evacuation residual pressure controller, a fire-fighting emergency evacuation electric pressure relief air valve actuator, a third fire-fighting emergency evacuation air valve actuator, a fire-fighting emergency evacuation residual pressure detector, a second air supplementing air quality detector and a positive pressure blower;
the fire emergency evacuation electric pressure relief air valve actuator data line is connected with the fire emergency evacuation residual pressure controller, and is used for receiving an angle adjusting command sent by the fire emergency evacuation residual pressure controller and sending the working state of the bypass pressure relief valve to the fire emergency evacuation residual pressure controller;
the third fire-fighting emergency evacuation air valve actuator is connected with the fire-fighting emergency evacuation residual pressure controller through a non-polar two-bus and is used for carrying out centralized power supply through the fire-fighting emergency evacuation residual pressure controller; the third fire-fighting emergency evacuation air valve actuator is used for receiving opening and closing commands sent by the fire-fighting emergency evacuation excess pressure controller and sending the working state of the pressurization air port to the fire-fighting emergency evacuation excess pressure controller;
the fire-fighting emergency evacuation residual pressure detector is connected with the fire-fighting emergency evacuation residual pressure controller through a non-polar two-bus, and is used for monitoring residual pressure values on two sides of the fire door in real time by supplying power to the second air supplementing air quality detector in a centralized manner through the controller and sending the collected residual pressure values to the fire-fighting emergency evacuation residual pressure controller through the two-bus;
the second air supplementing air quality detector is connected with the fire-fighting emergency evacuation residual pressure controller through a non-polar second bus and performs centralized power supply through the fire-fighting emergency evacuation residual pressure controller; the second air supplementing air quality detector is used for collecting the concentration of toxic and harmful gases and sending the collected concentration of the toxic and harmful gases to the fire-fighting emergency evacuation residual pressure controller through a non-polar second bus;
the positive pressure blower is electrically connected with the fire emergency evacuation residual pressure detector and is used for carrying out positive pressure air supply;
the fire-fighting emergency evacuation residual pressure controller is used for managing and controlling the fire-fighting emergency evacuation electric pressure relief air valve actuator, the third fire-fighting emergency evacuation air valve actuator, the fire-fighting emergency evacuation residual pressure detector, the second air supplementing air quality detector and the positive pressure air feeder.
The working principle of the technical scheme is as follows:
the fire-fighting emergency evacuation excess pressure detector, the fire-fighting emergency evacuation air valve actuator, the fire-fighting emergency evacuation electric pressure relief air valve actuator and the second air supply (air supplement) air quality detector are managed by the fire-fighting emergency evacuation excess pressure controller;
the concentration of toxic and harmful gases at the air inlet is detected in real time through a second air supply (supplement) air quality detector, so that the toxic and harmful gases are prevented from entering a smoke-proof subarea through an air supplement fan to cause secondary damage; the system is connected with a fire-fighting emergency evacuation residual pressure controller through a non-polar two-bus, and is used for supplying power in a centralized manner through the fire-fighting emergency evacuation residual pressure controller and sending the concentration of the collected toxic and harmful gas to the fire-fighting emergency evacuation residual pressure controller through the two-bus;
the excess pressure values of the two sides of the fireproof door are monitored in real time through a fire emergency evacuation excess pressure detector, so that when a fire disaster occurs, the fireproof door can prevent fire and smoke, and meanwhile, people can normally escape; the controller is connected with the fire-fighting emergency evacuation residual pressure controller through a non-polar two-bus, and the controller is used for supplying power in a centralized manner and sending the collected residual pressure value to the fire-fighting emergency evacuation residual pressure controller through the two-bus;
the angle of bypass relief valve is adjusted through emergent sparse electronic pressure release blast gate executor of fire control, and the excess pressure value of preventing fire door both sides is adjusted to the air output of control malleation air supply, guarantees when the conflagration takes place, prevents that fire door can prevent fires when separating the cigarette, lets personnel normally through fleeing. The device is connected with the fire-fighting emergency evacuation residual pressure controller through a data line, receives an angle adjusting command sent by the fire-fighting emergency evacuation residual pressure controller, and sends the working state of the bypass pressure relief valve to the fire-fighting emergency evacuation residual pressure controller;
the pressurizing air supply outlet, the smoke exhaust fire valve, the smoke exhaust valve (outlet) and the air supply outlet are controlled to be opened and closed by a third fire emergency evacuation air valve actuator; the non-polarity dual-bus type emergency evacuation excess pressure controller is connected with a fire-fighting emergency evacuation excess pressure controller, is used for supplying power in a centralized manner, receives opening and closing commands sent by the controller, and sends the working state of the pressurization air supply outlet to the fire-fighting emergency evacuation excess pressure controller.
Wherein, the emergent sparse excess pressure controller management control fire control is emergent sparse electronic pressure release air valve executor of emergent sparse, the emergent sparse excess pressure detector of fire control, the process of second air supplement air quality detector and malleation forced draught blower includes of third fire control:
firstly, the fire emergency evacuation residual pressure controller controls the opening and closing actions of the fire emergency evacuation electric pressure relief air valve actuator through a signal line and receives the working state of the fire emergency evacuation electric pressure relief air valve actuator; the fire emergency evacuation residual pressure controller is manually and automatically controlled to inspect the actuator of the fire emergency evacuation air valve, monitor and detect whether the actuator of the fire emergency evacuation electric pressure relief air valve works normally or not, and ensure that the equipment can work normally when a fire disaster is sent;
then, the fire-fighting emergency evacuation excess pressure controller and the third fire-fighting emergency evacuation air valve actuator are connected through the non-polar two buses, the fire-fighting emergency evacuation excess pressure controller controls the third fire-fighting emergency evacuation air valve actuator to open and close, and the working state of the third fire-fighting emergency evacuation air valve actuator is received; the fire-fighting emergency evacuation residual pressure controller is controlled to inspect a third fire-fighting emergency evacuation air valve actuator in a manual and automatic inspection mode, whether the third fire-fighting emergency evacuation air valve actuator works normally is judged, and the equipment can work normally when a fire disaster is sent;
then, the fire emergency evacuation residual pressure controller and the positive pressure air feeder are connected through a signal line, the fire emergency evacuation residual pressure controller is used for collecting the power supply voltage, the current, the phase and the air speed of the positive pressure air feeder and judging the working state of the positive pressure air feeder, meanwhile, the fire emergency evacuation residual pressure controller is used for controlling the positive pressure air feeder to be started and stopped, and the working state of the positive pressure air feeder is inspected manually and automatically;
then, the fire-fighting emergency evacuation residual pressure controller and the fire-fighting emergency evacuation residual pressure detector are connected through a non-polar two-bus, the working state and the real-time residual pressure value of the fire-fighting emergency evacuation residual pressure detector are received and displayed through the fire-fighting emergency evacuation residual pressure controller, and when the residual pressure value exceeds an overpressure action threshold value or is lower than a decompression action threshold value, the fire-fighting emergency evacuation residual pressure controller is used for controlling an actuator of an anti-emergency evacuation electric pressure relief air valve to adjust the angle of a bypass pressure relief valve so as to control the residual pressure value to be within a normal range;
then, the fire-fighting emergency evacuation residual pressure controller and a second air supplementing air quality detector are connected through a non-polar two-bus, the concentration of toxic and harmful gases in the air of an air supply outlet is judged through the second air supplementing air quality detector, the concentration of the toxic and harmful gases is fed back to the fire-fighting emergency evacuation residual pressure controller, and if the concentration of the toxic and harmful gases exceeds an alarm value, the fire-fighting emergency evacuation residual pressure controller automatically closes a positive pressure air feeder;
finally, the fire-fighting emergency evacuation residual pressure controller is connected with a smoke-proof and exhaust-gas-discharging monitor through a CAN bus, and uploads alarm, fault and working state information collected by all the fire-fighting emergency evacuation residual pressure controllers; and receiving a control command issued by the smoke prevention and exhaust monitor, and executing control information.
The effect of the above technical scheme is as follows: through the structure and the processing procedure steps of the positive pressure air supply system, the operation stability and the monitoring accuracy of the positive pressure air supply system can be effectively improved, and when a fire disaster occurs, the smoke-proof efficiency and the smoke-proof strength can be effectively improved, and the personnel safety guarantee strength is improved. Meanwhile, the construction difficulty and the maintenance complexity can be effectively reduced through the structure of the positive pressure air supply system, and the fault occurrence rate of the positive pressure air supply system and the whole smoke-proof monitoring system is effectively reduced. Further improve the operating reliability of the smoke-proof monitoring system, improve the fire prevention and disaster reduction degree when a fire disaster occurs, and effectively reduce casualties.
In an embodiment of the present invention, the process of sending the working operation states and the monitoring data of the linkage controller, the smoke exhaust system, the air supply system and the positive pressure air supply system to the cloud database by the smoke prevention and control platform includes:
the method comprises the following steps that firstly, the smoke prevention and exhaust monitoring platform sends a long-distance data transmission request to a cloud database according to a preset data sending time interval;
step two, when receiving a data uploading request sent by the smoke prevention and exhaust monitoring platform, the cloud database carries out self-checking on the storage space of the cloud database, and when the residual space of the cloud database does not reach a first residual storage space threshold value, the smoke prevention and exhaust monitoring platform is allowed to carry out data sending; when the residual space of the cloud database reaches or exceeds a first residual storage space threshold value, adjusting the smoke prevention and exhaust monitoring platform according to a preset data sending time interval, and allowing the smoke prevention and exhaust monitoring platform to send data; when the residual space of the cloud database reaches a second residual storage space threshold value, sending a data identification request to the smoke prevention and exhaust monitoring platform;
after receiving the data identification request, the smoke prevention and exhaust monitoring platform identifies whether fault information and/or fire information exist in the data needing to be uploaded at this time, and sends an identification result to a cloud database;
step four, the cloud database receives the identification result, and if the identification result is that fault information and/or fire information exist in the data which needs to be uploaded at this time, the smoke prevention and exhaust monitoring platform is allowed to send the data immediately; and if the identification result is that no fault information and/or fire information exists in the data which needs to be uploaded at this time, the cloud database deletes historical data according to historical recording time and a preset data space proportion, and after the historical data is deleted according to the preset data space proportion, the smoke prevention and exhaust monitoring platform is allowed to send the data.
The smoke prevention and exhaust monitoring platform is adjusted according to the following formula and according to a preset data sending time interval:
Figure BDA0002745016260000141
Ta＝T+ΔT
wherein, TaIndicating the adjusted data transmission time interval; Δ T represents a data transmission time interval adjustment amount; lambda [ alpha ]1And λ2Denotes the time interval adjustment factor, λ1Has a value range of 0.78-0.86, lambda2The value range of (A) is 0.82-0.93; t is0An initial default time interval representing data transmission; t isiThe uploading time for the smoke prevention and exhaust monitoring platform to send to the cloud database for the ith time is represented; n represents the total times of sending data to the cloud database by the smoke prevention and exhaust monitoring platform; hiIndicating smoke prevention and exhaustThe monitoring platform sends the uploaded data information quantity value in the cloud database for the ith time; hmaxRepresenting the maximum value of the single uploaded data information quantity sent to the cloud database by the smoke prevention and discharge monitoring platform; hminRepresenting the minimum value of the information quantity of the single uploaded data sent by the smoke prevention and exhaust monitoring platform to the cloud database; t ismaxRepresenting the maximum time for uploading data used by the smoke prevention and exhaust monitoring platform to send the data to the cloud database once; t isminThe minimum time for uploading data used by the smoke prevention and exhaust monitoring platform to send the data to the cloud database once is represented; c1Representing the occupied space capacity value in the cloud database; c2Representing the value of the amount of space capacity remaining in the cloud database.
And in the fourth step, after the cloud database immediately allows the smoke prevention and exhaust monitoring platform to send data according to the identification result, and after the cloud database completes the storage of the data sent by the smoke prevention and exhaust monitoring platform, the cloud database deletes the historical data according to the historical recording time and the preset data space proportion.
The effect of the above technical scheme is as follows: the reasonable balance between the balance data transmission quality and the data storage space of the cloud database can be effectively improved through the data transmission mode of the smoke prevention and discharge monitoring platform and the cloud database. When the timeliness of data transmission is guaranteed, the problem of saturation of the storage space of the cloud database is effectively prevented, and therefore the problems of reduction of data transmission efficiency, data loss and data storage failure caused by saturation of the storage space of the cloud database are prevented. The success rate of data transmission and storage is greatly improved. Meanwhile, the adjustment amount of the data sending time interval obtained through the calculation formula can be matched with the actual situation in the data transmission process and the data storage quantity of the cloud database, so that the time interval adjustment is more in line with the requirement of the actual data transmission situation, the increase rate of the storage space of the cloud database can be reduced under the condition that the time length of the data sending time interval is properly increased, meanwhile, the timeliness of data sending can be effectively guaranteed through the adjusted data sending time interval, the reasonableness between data storage retention and data sending in the smoke prevention and discharge monitoring platform is effectively balanced, and the accumulation of data in the smoke prevention and discharge monitoring platform is effectively avoided.
According to an embodiment of the present invention, the cloud database deletes the historical data according to the historical recording time and the preset data space proportion, including:
the method comprises the steps that firstly, the data size of data to be deleted is determined according to a preset data space proportion, and the data to be deleted are selected from a current cloud database according to the time sequence of data storage time from morning to evening;
secondly, identifying the data type in the data to be deleted, extracting data corresponding to fault information and fire information in the data to be deleted, and continuously storing the data to be used as reserved data;
determining the data volume of the retained data, and selecting data with the same data volume as the retained data from the remaining data in the cloud database according to the time sequence of the data storage time from early to late as the data to be deleted;
fourthly, repeating the contents of the second step and the third step until the data to be deleted which has the same data quantity corresponding to the preset data space proportion and does not contain fault information and fire information is obtained;
and fifthly, deleting the data to be deleted which has the same data quantity corresponding to the preset data space proportion and does not contain fault information and fire information.
The working principle of the technical scheme is as follows: firstly, determining the data volume of data to be deleted according to a preset data space proportion, and selecting the data to be deleted in the current cloud database according to the time sequence of data storage time from early to late; then, identifying the data type in the data to be deleted, extracting the data corresponding to the fault information and the fire information in the data to be deleted, and continuously storing the data as reserved data; then, determining the data volume of the reserved data, and selecting data with the same quantity as the data volume of the reserved data from the remaining data in the cloud database according to the time sequence of the data storage time from early to late as the data to be deleted; then, repeating the contents of the second step and the third step until the data to be deleted which has the same data quantity corresponding to the preset data space proportion and does not contain fault information and fire information is obtained; and finally, deleting the data to be deleted which has the same data quantity corresponding to the preset data space proportion and does not contain fault information and fire information.
The effect of the above technical scheme is as follows: on the premise of keeping the key historical data, the surplus of the storage space in the cloud database is effectively improved, the saturation speed of the storage space of the cloud database is greatly reduced, and the data storage quality and the key data storage duration are improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (7)

1. A building smoke prevention and exhaust monitoring control system is characterized by comprising a smoke prevention and exhaust monitoring platform, a linkage controller, a fire alarm, a graphic display device, a cloud database, a smoke exhaust system, an air supplementing system and a positive pressure air supply system;
the system comprises a linkage controller, a smoke prevention and discharge monitoring platform, a cloud database and a control system, wherein the smoke prevention and discharge monitoring platform is electrically connected with the linkage controller through a bus and is used for monitoring and receiving the starting operation state of the linkage controller and sending the working operation state and monitoring data of the linkage controller, a smoke discharge system, an air supplement system and a positive pressure air supply system to the cloud database;
the linkage controller is electrically connected with the smoke exhaust system, the air supplementing system and the positive pressure air conveying system through buses respectively; the linkage controller is used for controlling the operation of the smoke exhaust system, the air supplement system and the positive pressure air supply system, and sending the operation state and monitoring data of the smoke exhaust system, the air supplement system and the positive pressure air supply system to the smoke prevention and discharge monitoring platform;
the fire alarm is electrically connected with the linkage controller and used for alarming when a fire disaster occurs;
the graphic display device is arranged on the smoke prevention and exhaust monitoring platform and is used for displaying the fire position and the working running state and monitoring data of the linkage controller, the smoke exhaust system, the air supplement system and the positive pressure air supply system;
the cloud database is in data connection with the smoke prevention and exhaust monitoring platform in a wireless data transmission mode and is used for storing working operation states and monitoring data of the linkage controller, the smoke exhaust system, the air supplementing system and the positive pressure air conveying system;
the process that the smoke prevention and exhaust monitoring platform sends the working operation state and the monitoring data of the linkage controller, the smoke exhaust system, the air supplementing system and the positive pressure air supply system to the cloud database comprises the following steps:
the method comprises the following steps that firstly, the smoke prevention and exhaust monitoring platform sends a long-distance data transmission request to a cloud database according to a preset data sending time interval;
step two, when receiving a data uploading request sent by the smoke prevention and exhaust monitoring platform, the cloud database carries out self-checking on the storage space of the cloud database, and when the residual space of the cloud database does not reach a first residual storage space threshold value, the smoke prevention and exhaust monitoring platform is allowed to carry out data sending; when the residual space of the cloud database reaches or exceeds a first residual storage space threshold value, adjusting the smoke prevention and exhaust monitoring platform according to a preset data sending time interval, and allowing the smoke prevention and exhaust monitoring platform to send data; when the residual space of the cloud database reaches a second residual storage space threshold value, sending a data identification request to the smoke prevention and exhaust monitoring platform;
after receiving the data identification request, the smoke prevention and exhaust monitoring platform identifies whether fault information and/or fire information exist in the data needing to be uploaded at this time, and sends an identification result to a cloud database;
step four, the cloud database receives the identification result, and if the identification result is that fault information and/or fire information exist in the data which needs to be uploaded at this time, the smoke prevention and exhaust monitoring platform is allowed to send the data immediately; if the identification result is that no fault information and/or fire information exists in the data which needs to be uploaded at this time, the cloud database deletes historical data according to historical recording time and a preset data space proportion, and after the historical data is deleted according to the preset data space proportion, the smoke prevention and exhaust monitoring platform is allowed to send the data;
the cloud database deletes the historical data according to the historical recording time and the preset data space proportion, and the method comprises the following steps:
the method comprises the steps that firstly, the data size of data to be deleted is determined according to a preset data space proportion, and the data to be deleted are selected from a current cloud database according to the time sequence of data storage time from morning to evening;
secondly, identifying the data type in the data to be deleted, extracting data corresponding to fault information and fire information in the data to be deleted, and continuously storing the data to be used as reserved data;
determining the data volume of the retained data, and selecting data with the same data volume as the retained data from the remaining data in the cloud database according to the time sequence of the data storage time from early to late as the data to be deleted;
fourthly, repeating the contents of the second step and the third step until the data to be deleted which has the same data quantity corresponding to the preset data space proportion and does not contain fault information and fire information is obtained;
fifthly, deleting the data to be deleted which has the same data quantity corresponding to the preset data space proportion and does not contain fault information and fire information;
the positive pressure air supply system comprises a fire emergency evacuation residual pressure controller, a fire emergency evacuation electric pressure relief air valve actuator, a third fire emergency evacuation air valve actuator, a fire emergency evacuation residual pressure detector, a second air supplementing air quality detector and a positive pressure air feeder;
the fire emergency evacuation electric pressure relief air valve actuator data line is connected with the fire emergency evacuation residual pressure controller, and is used for receiving an angle adjusting command sent by the fire emergency evacuation residual pressure controller and sending the working state of the bypass pressure relief valve to the fire emergency evacuation residual pressure controller;
the third fire-fighting emergency evacuation air valve actuator is connected with the fire-fighting emergency evacuation residual pressure controller through a non-polar two-bus and is used for carrying out centralized power supply through the fire-fighting emergency evacuation residual pressure controller; the third fire-fighting emergency evacuation air valve actuator is used for receiving opening and closing commands sent by the fire-fighting emergency evacuation excess pressure controller and sending the working state of the pressurization air port to the fire-fighting emergency evacuation excess pressure controller;
the fire-fighting emergency evacuation residual pressure detector is connected with the fire-fighting emergency evacuation residual pressure controller through a non-polar two-bus, and is used for monitoring residual pressure values on two sides of the fire door in real time by supplying power to the second air supplementing air quality detector in a centralized manner through the controller and sending the collected residual pressure values to the fire-fighting emergency evacuation residual pressure controller through the two-bus;
the second air supplementing air quality detector is connected with the fire-fighting emergency evacuation residual pressure controller through a non-polar second bus and performs centralized power supply through the fire-fighting emergency evacuation residual pressure controller; the second air supplementing air quality detector is used for collecting the concentration of toxic and harmful gases and sending the collected concentration of the toxic and harmful gases to the fire-fighting emergency evacuation residual pressure controller through a non-polar second bus;
the positive pressure blower is electrically connected with the fire emergency evacuation residual pressure detector and is used for carrying out positive pressure air supply;
the fire-fighting emergency evacuation residual pressure controller is used for managing and controlling the fire-fighting emergency evacuation electric pressure relief air valve actuator, the third fire-fighting emergency evacuation air valve actuator, the fire-fighting emergency evacuation residual pressure detector, the second air supplementing air quality detector and the positive pressure air feeder.
2. The system of claim 1, wherein the smoke evacuation system comprises an exhaust controller, a first fire emergency evacuation damper actuator, a smoke evacuation fan, a fire input output module, and a smoke evacuation dedicated detector; the exhaust controller is electrically connected with the joint defense controller, and is respectively and electrically connected with the first fire emergency evacuation air valve actuator, the smoke exhaust fan, the fire input/output module and the smoke exhaust special detector;
the exhaust controller is used for managing and controlling the first fire-fighting emergency evacuation air valve actuator, the smoke exhaust fan, the fire-fighting input and output module and the smoke exhaust special detector;
the first fire-fighting emergency evacuation air valve actuator is connected with the smoke exhaust controller through a non-polar two-bus and is supplied with power in a centralized manner through the smoke exhaust controller; the first fire-fighting emergency evacuation air valve actuator is also electrically connected with the smoke exhaust valve and the smoke exhaust fire prevention valve;
the smoke exhaust fan is electrically connected with the exhaust controller;
the fire-fighting input and output module is connected with a smoke-proof controller, a smoke exhaust controller and a fire-fighting emergency evacuation residual pressure controller in the positive pressure air supply system through a non-polar two-bus, and is used for supplying power in a centralized manner through the smoke-proof controller, the smoke exhaust controller and the fire-fighting emergency evacuation residual pressure controller; the fire-fighting input and output module is also electrically connected with the electric smoke-blocking vertical wall and the fire-fighting electric window opener;
the special smoke exhaust detector is used for monitoring the concentration of toxic and harmful gases in the smoke prevention subarea in real time and sending the collected concentration of the toxic and harmful gases to the smoke exhaust controller through the nonpolar two buses.
3. The system of claim 2, wherein the smoke exhaust controller detects the concentration of toxic and harmful gases in the smoke-proof subarea by using a smoke exhaust special detector and controls the opening and closing of the smoke exhaust fan according to the concentration of the harmful gases, and comprises:
step 1, the special smoke exhaust detector detects the concentration of toxic and harmful gas in a smoke prevention subarea, judges the concentration of the toxic and harmful gas, and sends the concentration value of the toxic and harmful gas in the smoke prevention subarea to a smoke prevention and exhaust monitoring platform through the smoke exhaust controller and the joint defense controller when the concentration of the toxic and harmful gas reaches or exceeds a first concentration alarm threshold value;
step 2, when the smoke prevention and control platform receives the concentration of the toxic and harmful gas in the smoke prevention subarea exceeding a first concentration alarm threshold value, early warning display is carried out through a graphic display device;
step 3, the smoke exhaust controller raises and adjusts the gas sampling frequency of the special smoke exhaust detector, and judges the change trend and the change rate of the concentration of the toxic and harmful gas according to the concentration value of the toxic and harmful gas detected by the special smoke exhaust detector;
step 4, if the concentration of the toxic and harmful gases gradually rises and the increasing rate of the concentration of the toxic and harmful gases reaches or exceeds a concentration increasing rate threshold value, immediately turning on a smoke exhaust fan and giving an alarm through a fire alarm; and prompting a worker to check if the concentration of the toxic and harmful gas gradually decreases or the increasing rate of the concentration of the toxic and harmful gas is lower than a concentration increasing rate threshold value.
4. The system of claim 2, wherein the smoke exhaust controller detects the concentration of toxic and harmful gases in the smoke-proof partition by using a smoke exhaust dedicated detector and performs on-off control of the smoke exhaust fan according to the concentration of the harmful gases, further comprising:
when the special smoke exhaust detector detects that the concentration of the toxic and harmful gas reaches or exceeds a second concentration alarm threshold value, the smoke exhaust controller immediately turns on the smoke exhaust fan and gives an alarm through the fire alarm, and meanwhile, the concentration value of the toxic and harmful gas in the smoke prevention subarea at the moment is sent to the smoke prevention and exhaust monitoring platform through the smoke exhaust controller and the joint defense controller.
5. The system of claim 1, wherein the air supplement system comprises a smoke control controller, a second fire emergency evacuation damper actuator, an air supplement fan, and a first air supplement air quality detector;
the second fire-fighting emergency evacuation air valve actuator is connected with the smoke-proof controller through a non-polar second bus and is used for carrying out centralized power supply through the smoke-proof controller; the second fire-fighting emergency evacuation air valve actuator is used for receiving the opening and closing commands sent by the smoke exhaust controller and sending the working state of the air supply outlet to the smoke prevention controller;
the air supplementing fan is connected with the smoke-proof controller through a non-polar two-bus and used for providing air supplementing;
the first air supplementing air quality detector is connected with the smoke-proof controller through a non-polar two-bus and is used for carrying out centralized power supply through the smoke-proof controller; the first air supplementing air quality detector is used for collecting the concentration of toxic and harmful gases and sending the collected concentration of the toxic and harmful gases to the smoke-proof controller through the non-polar two buses;
and the smoke-proof controller is used for controlling and managing the operation of the second fire-fighting emergency evacuation air valve actuator, the air supplementing fan and the first air supplementing air quality detector.
6. The system of claim 1, wherein the smoke emission prevention monitoring platform is adjusted according to a preset data transmission time interval according to the following formula:
Figure FDA0003209752910000041
Ta＝T+ΔT
wherein, TaIndicating the adjusted data transmission time interval; Δ T represents a data transmission time interval adjustment amount; lambda [ alpha ]1And λ2Denotes the time interval adjustment factor, λ1Has a value range of 0.78-0.86, lambda2The value range of (A) is 0.82-0.93; t is0An initial default time interval representing data transmission; t isiThe uploading time for the smoke prevention and exhaust monitoring platform to send to the cloud database for the ith time is represented; n represents the total times of sending data to the cloud database by the smoke prevention and exhaust monitoring platform; hiThe uploaded data information quantity value sent to the cloud database by the smoke prevention and discharge monitoring platform for the ith time is represented; hmaxRepresenting the maximum value of the single uploaded data information quantity sent to the cloud database by the smoke prevention and discharge monitoring platform; hminSingle-time data uploading message sent to cloud database by presentation smoke prevention and discharge monitoring platformMinimum information quantity; t ismaxRepresenting the maximum time for uploading data used by the smoke prevention and exhaust monitoring platform to send the data to the cloud database once; t isminThe minimum time for uploading data used by the smoke prevention and exhaust monitoring platform to send the data to the cloud database once is represented; c1Representing the occupied space capacity value in the cloud database; c2Representing the value of the amount of space capacity remaining in the cloud database.
7. The system according to claim 1, wherein in the fourth step, after the cloud database immediately allows the smoke prevention and exhaust monitoring platform to send data according to the identification result, and after the cloud database completes storage of the data sent by the smoke prevention and exhaust monitoring platform this time, the cloud database deletes historical data according to a preset data space proportion according to historical recording time.
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