CN112767625A - Fire detector, intelligent fire-fighting spraying system and fire control method - Google Patents
Fire detector, intelligent fire-fighting spraying system and fire control method Download PDFInfo
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- G08B17/00—Fire alarms; Alarms responsive to explosion
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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- G—PHYSICS
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- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
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- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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Abstract
The invention provides a fire detector, an intelligent fire-fighting spraying system and a fire control method. Wisdom fire control spraying system includes 1 at least centralized control ware, and every centralized control ware corresponds a plurality of regional control wares of connection, is provided with a plurality of fire detector in the region that every regional control ware jurisdiction, and regional control ware corresponds a plurality of fire detector of communication connection, and a shower nozzle is connected to every fire detector. According to the fire control method, the integrated controller, the regional controller and the fire detector are interacted, each spray head has a unique identification code, fire characteristics can be effectively extracted, an optimal configuration mode is automatically selected, then a group mode of the spray heads is expanded to cooperatively extinguish fire, the fire extinguishing efficiency is high, and water quantity is effectively utilized.
Description
Technical Field
The invention belongs to the technical field of fire fighting, and particularly relates to a fire detector, an intelligent fire-fighting spraying system and a fire control method.
Background
The fire-fighting spraying system is a fire-fighting device, is a fixed fire-fighting facility with wide application, and has the characteristics of low price, high fire-fighting efficiency and the like. Fig. 1 provides a schematic structural diagram of an existing fire sprinkler system, which includes a water tank 1, a water pump 2, a check valve 3, a gate valve 4, a water pump coupler 5, a fire water tank 6, a wet alarm valve set 7, a water distribution main pipe 8, a water flow indicator 9, a water distribution pipe 10, a terminal water test device 11, a water distribution branch pipe 12, a spray head 13 and an alarm controller 14. The fire sprinkler system belongs to 'passive' detection and fire extinguishing, and has the following problems:
1. the spraying bubble can not be started when the surrounding temperature of the spraying bubble is not up to a certain temperature (for example, 68 ℃), and early discovery and early fire extinguishment can not be realized;
2. each spray head independently sprays water, the spray heads cannot cooperate with each other, and the fire extinguishing efficiency is low;
3. the spray heads do not have 'identity' information, and accurate positioning and information management of each spray head cannot be achieved. The urban intelligent fire-fighting system which can be developed rapidly in the future cannot be accessed effectively;
4. the sprinkler has no self-checking capability.
The problems are generally existed in the fire-fighting system adopted at present at home and abroad, and if the problems can be solved, the fire-fighting prevention and control capability of China undoubtedly leads to a new step.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a fire detector, an intelligent fire-fighting spraying system and a fire control method. The detector, the system and the method can effectively extract fire characteristics, find out the disaster as early as possible and accurately position the disaster, and then expand the group mode of the spray heads to cooperatively extinguish fire, so that the fire extinguishing efficiency is high, and the water quantity is effectively utilized. The technical scheme adopted by the invention is as follows:
the technical scheme of the first aspect of the invention is to provide a fire detector, wherein one fire detector corresponds to one fire nozzle and is arranged close to the fire nozzle; the fire detector comprises an integrated circuit board and a shell used for packaging the integrated circuit board;
the integrated circuit board is integrated with a single chip microcomputer, a first temperature sensor, a second temperature sensor, a filter amplifier, an A/D converter, a communication module, a driving module, a storage chip and a power supply module; the single chip microcomputer is respectively connected with the A/D converter, the communication module, the driving module and the storage chip; the first temperature sensor and the second temperature sensor are respectively connected with the filter amplifier, and the filter amplifier is connected with the A/D converter; the temperature sensing head of the first temperature sensor is positioned in the shell and used for detecting normal room temperature; the temperature sensing head of the second temperature sensor is positioned outside the shell and used for detecting the temperature around the sensor when a fire disaster happens.
Furthermore, a channel for passing heat is arranged on one side of the temperature sensing head of the second temperature sensor.
Preferably, the upper end of the channel is provided with a water retaining cover.
Further, an LED light state indicating module is integrated on the integrated circuit board, and the LED light state indicating module is connected with the single chip microcomputer and used for sending light indicating signals including alarm signals, fault signals and normal monitoring signals when the detector meets conditions.
The technical scheme of the second aspect of the invention is to provide an intelligent fire-fighting spraying system, which comprises at least 1 centralized controller, wherein each centralized controller is correspondingly and communicatively connected with a plurality of regional controllers, a plurality of fire detectors are arranged in the region governed by each regional controller, the regional controllers are correspondingly and communicatively connected with the plurality of fire detectors, and each fire detector is connected with one spray head.
Optionally, each of the fire detectors is in communication with other fire detectors in the same area.
Furthermore, an autonomous fusing device is arranged on the spray head and comprises a temperature sensing element and a heating element arranged on the temperature sensing element, and the heating element is connected with a driving module of the fire detector.
Preferably, each zone controller is further connected with at least one of an image sensor, a smoke sensor and an optical sensor.
Furthermore, the zone controller comprises a fire information processing module, a position information processing module, a linkage execution module, an alarm module and a main controller connected with the modules; the fire information processing module is used for analyzing the temperature information transmitted by the fire detector and further comprehensively judging whether the fire information is abnormal or not by combining at least one of image information, smoke information and optical information; the position information processing module is used for analyzing the position information transmitted by the fire detector, finding the fire detector closest to the fire detector by taking the fire detector as a center and displaying the position information; the linkage execution module is used for simultaneously starting a spray head corresponding to the central fire detector and a spray head corresponding to the fire detector closest to the central fire detector to perform configuration linkage water spraying fire extinguishing when the fire information is analyzed to be abnormal; the alarm module is used for sending out an alarm prompt when starting water spraying and fire extinguishing.
Preferably, the alarm module is a sound and light alarm device.
Furthermore, the zone controller further comprises a mode switching module, the mode switching module is in communication connection with the fire detector, and the mode switching module is used for controlling the fire detector to be in a working mode or a detection mode, wherein the working mode refers to that the fire detector controls the spray head to spray water when a fire occurs, and the detection mode refers to that the fire detector verifies whether an internal system of the fire detector normally runs on the premise that the spray head is not started to spray water.
Further, the spraying system further comprises a cloud server and a terminal operation system which are connected with each other, wherein the cloud server is connected with the centralized controller and is used for carrying out comprehensive matching processing on the on-site fire information acquired by the centralized controller and feeding the on-site fire information back to the terminal operation system; the terminal operation system comprises a mobile phone moving end and a fire-fighting command center.
In a third aspect of the present invention, there is provided a fire control method including:
the region controller periodically inspects the fire detectors in the region, and then acquires the temperature information and the position information of each fire detector; the centralized controller regularly patrols and examines each region controller, and the state of all fire detectors in each region is mastered in real time through the region controllers;
when the area controller monitors that the temperature information of a certain fire detector is abnormal, control instructions are sent to the fire detector and other fire detectors closest to the fire detector at the same time, and the fire detectors start corresponding spray heads to spray water after receiving the control instructions in a configuration linkage mode;
if the other fire detectors closest to the fire detector relate to cross-region detectors, the region controller to which the fire detector belongs sends a control instruction to the fire detector to which the fire detector belongs, and sends state information to the centralized controller at the same time, the centralized controller sends the control instruction to the region controller to which the cross-region detectors belong according to the state information, and then the cross-region fire detector is controlled to start corresponding spray heads to spray water.
In a fourth aspect of the present invention, there is provided another fire control method including:
the region controller periodically inspects the fire detectors in the region, and then acquires the temperature information and the position information of each fire detector; the centralized controller regularly patrols and examines each region controller, and the state of all fire detectors in each region is mastered in real time through the region controllers;
when the zone controller monitors that temperature information of a certain fire detector is abnormal, a superior control instruction is sent to the fire detector, after the fire detector receives the superior control instruction, the same-level control instruction is sent to other fire detectors closest to the fire detector, and the fire detectors start corresponding spray heads to spray water in a configuration linkage mode according to the superior control instruction and the same-level control instruction respectively;
if the fire detector and other fire detectors closest to the fire detector relate to cross-region detectors, the region controller to which the fire detector belongs sends state information to the integrated controller while sending the superior control instruction, and the integrated controller sends a control instruction to the region controller to which the cross-region detectors belong according to the state information, so that the cross-region fire detectors are controlled to start corresponding spray heads to spray water.
Further, in the fire control method according to the third or fourth aspect of the present invention, when each of the zone controllers is further connected to at least one of an image sensor, a smoke sensor, and an optical sensor, the method further includes a process of acquiring fire image information, smoke information, and optical information by the zone controller, and performing a process of comprehensively determining whether a fire occurs in combination with the temperature information, and if so, sending a control instruction to the fire detector.
The invention has the advantages and positive effects that: in the invention, each spray head is correspondingly provided with 1 fire detector, and because the fire detectors are provided with the storage chips, each spray head is equivalent to have unique position information, in particular to an identification code for identifying identity information. In addition, the invention effectively extracts the fire characteristics by monitoring the temperature abnormity of 2 temperature detectors integrated in the same fire detector, thereby realizing early detection, accurate positioning and early starting of fire extinguishing. In addition, the system can automatically select an optimal configuration mode (a group mode) according to characteristic parameters (position information and peripheral nozzle position information) of the nozzles, and calls neighbors to carry out cooperative fire extinguishing, so that the fire extinguishing efficiency is high.
Drawings
Fig. 1 is a schematic structural diagram of a conventional fire sprinkler system.
Fig. 2 is a schematic structural view of a fire detector in embodiment 1 of the present invention.
Fig. 3 is a circuit block diagram of an architecture of a centralized controller, a zone controller and a fire detector of the main intelligent fire sprinkler system in embodiment 2 of the invention.
Fig. 4 is a schematic view of the dotted connection of the water spray in the same area around the midpoint configuration in embodiment 2 of the present invention.
Fig. 5 is a schematic view of the dotted connection of the water spray in the same area surrounding the boundary point configuration in embodiment 2 of the present invention.
Fig. 6 is a schematic view of a dotted connection of water jets in the same area around a corner configuration in embodiment 2 of the present invention.
Fig. 7 is a schematic diagram of a configuration method in two areas according to embodiment 2 of the present invention.
Fig. 8 is a schematic diagram of a configuration method in three areas according to embodiment 2 of the present invention.
Fig. 9 is a block diagram of a zone controller in embodiment 2 of the present invention.
Fig. 10 is a schematic structural diagram of a smart fire sprinkler system in embodiment 3 of the present invention.
Fig. 11 is a schematic structural view of an electrically controlled sprinkler in embodiment 2 of the present invention.
In the upper diagram:
1. pool 2, water pump 3 and check valve
4. Gate valve 5, water pump connector 6 and fire water tank
7. Wet alarm valve set 8, water distribution main pipe 9, water flow indicator
10. Water distribution pipe 11, end water test device 12, water distribution branch pipe
13. Electric control spray head 14, alarm controller 15 and water pump control cabinet
16. Regional controller 17, centralized controller 18, fire detector
1801. First temperature sensor 1802, second temperature sensor 1803, filter amplifier
1804. A/D converter 1805, singlechip 1806, communication module
1807. Drive module 1808, LED light state indicating module 1809 and memory chip
1810. Power supply module 1811, power supply terminal 1812, drive terminal
1813. Communication terminal 19, local power bus 20, probe communication bus
21. Regional communication bus 1601, main controller 1602, fire information processing module
1603. Position information processing module 1604, linkage execution module 1605 and alarm module
1606. Mode switching module 1607, sensor 22, centralized power bus
1101. Temperature sensing element 1102 and heating element
Detailed Description
The present invention will now be described in further detail with reference to the following figures and specific examples, which are intended to be illustrative, but not limiting, of the invention.
Example 1
As shown in fig. 2, the embodiment provides a fire detector, one fire detector corresponds to one fire sprinkler and is arranged close to the fire sprinkler; the fire detector comprises an integrated circuit board and a shell used for packaging the integrated circuit board;
the integrated circuit board is integrated with a single chip microcomputer 1805, a first temperature sensor 1801, a second temperature sensor 1802, a filter amplifier 1803, an A/D converter 1804, a communication module 1806, a driving module 1807, an LED light state indication 1808, a memory chip 1809, a working power source 1810, a power terminal 1811, a driving terminal 1812 and a communication terminal 1813; the single chip microcomputer 1805 is respectively connected to the a/D converter 1804, the communication module 1806, the driving module 1807, the LED light status indicator 1808, and the memory chip 1809; the communication module 1806 is connected to the communication terminal 1813; the driving output of the driving module 1807 is connected to the driving terminal 1812; the input end of the working power source 1810 is directly connected with the power terminal 1811; the driving power supply of the driving module is connected to the power terminal 1811. The first temperature sensor 1801 and the second temperature sensor 1802 are respectively connected to the filter amplifier 1803, and the filter amplifier 1803 is connected to the a/D converter 1804; the temperature sensing head of the first temperature sensor is positioned in the shell and used for detecting normal room temperature; the temperature sensing head of the second temperature sensor is positioned outside the shell and used for detecting the temperature around the sensor when a fire disaster happens. The output of the operating power source 1810 provides the logic power for all the devices of the detector.
The first temperature sensor 1801 and the second temperature sensor 1802 may be commercially available sensors with relatively high precision, but according to the present invention, a channel for passing heat is further formed on one side of the temperature sensing head of the second temperature sensor 1802, and the channel is vertically arranged so that the temperature sensing head can rapidly sense the temperature of the sensor, and the channel is formed close to the temperature sensing head, and a water blocking cover (not shown) is provided at an upper end of the channel so as to prevent water from entering the channel when the shower head 13 sprays water.
An LED light state indicating module 1808 is further integrated on the integrated circuit board, and the LED light state indicating module 1808 is connected with the single chip microcomputer 1805 and used for sending light indicating signals including alarm signals, fault signals and normal monitoring signals when the detector meets conditions.
The working process of the detector can be described as follows: the single chip microcomputer program periodically detects the ambient temperature around the detector through an A/D conversion circuit and compares the ambient temperature with an alarm threshold value, when the alarm condition is met, a related flag bit of software is immediately set, the flag bit is stored in an internal memory of the single chip microcomputer, and when an upper computer (namely a zone controller) periodically inquires the state of the detector, the detector transmits the flag and other information to the upper computer (namely the zone controller) through a communication module; the LED light state indication is used for sending out light indication signals (alarm signals, fault signals and normal monitoring signals) when the detector meets conditions; the memory chip is a power-failure non-loss electrically erasable semiconductor chip and is used for marking information such as address codes (namely position information) and alarm threshold values of the detector; the communication module is used for sending temperature information and sensitivity information to an upper computer (namely a zone controller) under the control of the singlechip and receiving related control information sent by the upper computer (namely the zone controller). When the area controller inquires that a certain detector gives an alarm, if the alarm condition (such as optical alarm, image alarm and smoke alarm) is met at the area controller, the area controller immediately sends a starting driving water spraying instruction to the relevant detector and a single chip microcomputer of the common configuration detector, the single chip microcomputer of the detector immediately controls a driving module to work after receiving the starting driving water spraying instruction, a driving power supply is sent to a sprayer load through a driving terminal, and the sprayer is started to spray water to extinguish a fire.
Example 2
The embodiment provides an intelligent fire-fighting spraying system, which comprises at least 1 centralized controller 17, wherein each centralized controller 17 is correspondingly connected with a plurality of area controllers 16, each area controller 16 is connected with a plurality of fire detectors 18 described in embodiment 1 through a communication bus, each fire detector 18 is connected with one electric control spray head 13, and the structure of the electric control spray head 13 is shown in fig. 11. An autonomous fusing device is arranged on the electronic control spray head 13, the autonomous fusing device comprises a temperature sensing element 1101 and a heating element 1102 arranged on the temperature sensing element, and the heating element 1102 is connected with a driving terminal 1812 of a driving module 1807 of the fire detector 18. The appearance of the electrically controlled nozzle of this embodiment is similar to that of the existing nozzle, but while the function of automatic fusing of the existing nozzle when the environmental temperature (sensed by the liquid loaded in the fusing device) is monitored to be higher than 68 ℃, since the present embodiment connects the heating element 1102 (actually, heating wire) to the glass tube loaded with the liquid with the temperature sensing function to realize automatic fusing, the fusing temperature can be set as required. In this embodiment, the heating element is an electric heating wire, and other heating mechanisms such as an electric heating sheet can be used to heat the glass tube with the temperature-sensitive liquid and then burst the glass tube, so as to start the spray head 13 to spray water.
The architectural connections between the centralized controller 17, the zone controller 16 and the fire detector 18 are shown in fig. 3.
In order to better optimize and expand the performance of the spraying system, a cloud server and a terminal operating system can be added to the spraying system, the cloud server and the terminal operating system are connected with each other, and the cloud server is also connected with the centralized controller and used for carrying out comprehensive matching processing on the on-site fire information acquired by the centralized controller and feeding the on-site fire information back to the terminal operating system; the terminal operation system comprises a mobile phone moving end and a fire command center, so that the fire scene condition can be directly transmitted to the fire command center, and the management and control efficiency and the prevention and control efficiency can be improved.
In the present embodiment, the fire detector 18 is located at the front end of the system, which is one of the key nodes of the system, mainly responsible for the processing of the ambient temperature sensing signal, and is configured in a one-to-one manner with the electrically controlled sprinklers. The temperature acquisition function of the fire detector refers to the detection of the ambient temperature of the on-site fire detector, and the alarm threshold is set by the system and can be set and changed at the zone controller. Once the alarm threshold is reached, the fire detector sets a corresponding mark and uploads the mark to an upper computer (a zone controller) when the upper computer calls. In addition, each fire detector can also be set to be in communication connection with other fire detectors in the same area, so that when a certain detector detects abnormal temperature, the fire detectors around the certain detector can be automatically started to control water spraying.
In this embodiment, the centralized controller 17 is also one of the important nodes, and is generally disposed in the duty center. The centralized controller centrally manages various information of the system, and has the functions of system initialization, system modeling, automatic temperature distribution simulation diagram, point-to-point manual intervention and the like. In addition, a nozzle decision mode which should be adopted at present is transmitted to each area controller, and the centralized controller adopts a Siemens industrial personal computer with the model: IPC427 ECO. In addition, the centralized controller also provides power (generally alternating current) for each zone controller, and the zone controllers provide power (generally direct current) for each fire detector; the centralized controller carries out information communication with each regional controller through a regional communication bus; and the zone controller is communicated with each fire detector through a detection communication bus.
In this embodiment, the area controller 16 is a porphyry industrial personal computer, model: IPC-610E, which performs regional fire monitoring, fast decision-making, interacts with fire detector 18, and provides regional fire information to centralized controller 17. Providing optical, smoke, image detection, etc. functions as desired. Receives various commands from the centralized controller 17 and reports various fire parameters in the local area to the centralized controller 17. Has the dual functions of independently setting the water spraying mode and receiving the mode sent by the centralized controller 17. In addition, the zone controller 16 further includes a fire information processing module 1602, a position information processing module 1603, a linkage execution module 1604, an alarm module 1605 and a main controller 1601 connected with the above modules; the fire information processing module 1602 is configured to analyze the temperature information transmitted by the fire detector 18, and may further perform comprehensive judgment on whether the fire information is abnormal or not by combining at least one of image information, smoke information, and optical information; the position information processing module 1603 is configured to analyze the position information transmitted by the fire detector 18, find the fire detector 18 closest to the fire detector by taking the fire detector as a center, and display the position information; the linkage execution module 1604 is configured to simultaneously start the spray head corresponding to the central fire detector 18 and the spray head corresponding to the fire detector 18 closest thereto through the zone controller 16 to perform configuration linkage water spraying fire extinguishing when analyzing that the fire information is abnormal; the alarm module 1605 is used for sending out alarm prompt when starting water spraying fire extinguishing. The alarm module 1605 is preferably an audible and visual alarm device.
The zone controller 16 further includes a mode switching module 1606, the mode switching module 1606 is in communication connection with the fire detector 18, and the mode switching module 1606 is configured to control the fire detector 18 to be in a working mode or a detection mode, where the working mode refers to when a fire occurs, the fire detector controls the spray heads to spray water, and the detection mode refers to when the fire detector verifies whether its internal system is operating normally without starting the spray heads to spray water.
In order to better monitor the fire situation, in the present embodiment, each of the zone controllers 16 is further connected to at least one of an image fire sensor, a smoke sensor, and an optical sensor. And acquiring real-time environment image information of different areas in the building by using the image fire sensor and giving out related alarm signals. And acquiring smoke concentration distribution state information of different areas in the building by using the smoke sensor and giving out related alarm signals. And acquiring ultraviolet or infrared optical alarm information inside the building by using the optical sensor. If only a single detection mode is adopted, the false spraying probability can be greatly increased. In order to reduce the probability of the occurrence of the false spraying, the fire detection and the positioning are preferably carried out in a combined mode by combining the installation site conditions.
Fig. 9 shows a block diagram of the area controller 16, and the control instruction of the area controller 16 includes: the zone controller checks in a loop whether there are instructions from the centralized controller 17, keyboard instructions (manual operation) from the zone controller 16 itself, current status instructions and configuration water spray instructions for all the fire detectors 18. If the fire detector alarms, and simultaneously, the area controller generates image fire alarm, optical alarm and smoke alarm, the configuration water spraying process is started immediately.
The configuration method in one area of the intelligent fire-fighting spraying system comprises the following steps:
as shown in fig. 4, the middle point alarms-around this point, combined with other factors of the area (optics, images, smoke), 5 sprinklers can be activated simultaneously.
As shown in fig. 5, a boundary point alarm-surrounding the point, combined with other factors (optics, images, smoke) in the area, can activate 4 sprinklers simultaneously.
As shown in fig. 6, 3 nozzles can be activated simultaneously by alarming around the corner, combined with other factors (optical, image, smoke) in the area.
Fig. 7-8 illustrate a configuration method within 2 or 3 zones.
The "dots" in fig. 4-8 indicate the placement of the sprinkler heads and fire detectors.
Example 3
As shown in fig. 10, this embodiment constitutes an intelligent fire sprinkler system, in which, in addition to all the components described in embodiment 2, a water tank 1, a water pump 2, a check valve 3, a gate valve 4, a water pump coupler 5, a fire water tank 6, a wet type alarm valve set 7, a water distribution main pipe 8, a water flow indicator 9, a water distribution pipe 10, an end water test device 11, a water distribution branch pipe 12, a spray head 13, and an alarm controller 14 are included, which are the same as the commonly installed components of the existing fire sprinkler system. The fire control method using the system has two methods, wherein one method comprises the following steps:
(1) the region controller periodically inspects the fire detectors in the region, and then acquires the temperature information and the position information of each fire detector; the centralized controller regularly patrols and examines each region controller, and the state of all fire detectors in each region is mastered in real time through the region controllers;
(2) when the area controller monitors that the temperature information of a certain fire detector is abnormal, control instructions are sent to the fire detector and other fire detectors closest to the fire detector at the same time, and the fire detectors start corresponding spray heads to spray water after receiving the control instructions in a configuration linkage mode;
(3) if the other fire detectors closest to the fire detector relate to cross-region detectors, the region controller to which the fire detector belongs sends a control instruction to the fire detector to which the fire detector belongs, and sends state information to the centralized controller at the same time, the centralized controller sends the control instruction to the region controller to which the cross-region detectors belong according to the state information, and then the cross-region fire detector is controlled to start corresponding spray heads to spray water.
Another fire control method includes:
(1) the region controller periodically inspects the fire detectors in the region, and then acquires the temperature information and the position information of each fire detector; the centralized controller regularly patrols and examines each region controller, and the state of all fire detectors in each region is mastered in real time through the region controllers;
(2) when the zone controller monitors that temperature information of a certain fire detector is abnormal, a superior control instruction is sent to the fire detector, after the fire detector receives the superior control instruction, the same-level control instruction is sent to other fire detectors closest to the fire detector, and the fire detectors start corresponding spray heads to spray water in a configuration linkage mode according to the superior control instruction and the same-level control instruction respectively;
(3) if the fire detector and other fire detectors closest to the fire detector relate to cross-region detectors, the region controller to which the fire detector belongs sends state information to the integrated controller while sending the superior control instruction, and the integrated controller sends a control instruction to the region controller to which the cross-region detectors belong according to the state information, so that the cross-region fire detectors are controlled to start corresponding spray heads to spray water.
The difference between the two fire control methods is that in this system, it is set to wake up the sprinkler configuration spray through the zone controller or to wake up the sprinkler configuration spray through the fire detector.
In addition, in the above fire control method, when each of the zone controllers is further connected to at least one of an image sensor, a smoke sensor, and an optical sensor, the method further includes a process of acquiring fire image information, smoke information, and optical information by the zone controller, and performing a process of comprehensively judging whether a fire occurs in combination with the temperature information, and if so, sending a control instruction to the fire detector.
The specific implementation process of the system for fire extinguishing in a class a fire in a fire experiment center is specifically described below, wherein 1 centralized controller is set, and 3 zone controllers are set, that is, the starting test site for performing the class a fire by using the system is divided into 3 zones (zone 1, zone 2, and zone 3), the layout is the same as that of fig. 8, but the number and the layout of the nozzles/detection assemblies in each zone are the same as that of fig. 4. The specific experimental process is as follows:
1. construction of 1A-level fire test model
The model is composed of a plurality of wood strips. The wood strips are dried (the temperature during drying is not higher than 105 ℃). The length of the wood strip is 500mm +/-10 mm, the cross section is square, and the side length is 39mm +/-1 mm.
The battens are stacked in layers, and the battens on the upper layer and the lower layer are arranged in a right angle. The wood strips of each layer are evenly spaced. The test model is a square tree hide, and the side length of the test model is equal to the length of the batten.
The wood hide has 12 layers, each layer has 6 wood strips, and the whole wood hide is composed of 72 wood strips.
The wood is hidden and placed on a metal bracket, the height of the bracket is 400mm +/-10 mm, one ignition disc is placed under the bracket, and the size of the ignition disc is 400mm multiplied by 100 mm.
2. Test procedure
(1) The height between a spray head of the active water spraying fire extinguishing system and the ground of a detection assembly is adjusted to be about 9 meters (typical height);
(2) starting a power supply to enable the system to be in a normal working state;
(3) pouring 30mm of clear water into the ignition disc, pouring 1.1L of motor gasoline, and moving the oil disc to be under a wood shelter;
(4) the configuration modes of figures 4-8 were all experimentally verified by igniting the gasoline, recording the time elapsed from ignition to system start-up of water spray with a stopwatch.
Test results show that no matter the wood is hidden in the corner points, boundary points, middle points or intersection points within 45-51 seconds, the system realizes automatic configuration water spraying, and configuration water spraying graphs are shown in FIGS. 4-8;
(5) under the same conditions, the conventional automatic sprinkler system cannot be started. The superior performance of the active automatic water-spraying fire-extinguishing system is fully demonstrated.
In conclusion, the invention can effectively extract the fire characteristics, and realize early discovery, accurate positioning and early starting of fire extinguishing. In addition, the system can automatically select an optimal configuration mode (a group mode) according to characteristic parameters (position information and peripheral nozzle position information) of the nozzles, and calls neighbors to carry out cooperative fire extinguishing, so that the fire extinguishing efficiency is high.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. A fire detector is characterized in that one fire detector corresponds to one fire nozzle and is arranged close to the fire nozzle; the fire detector comprises an integrated circuit board and a shell used for packaging the integrated circuit board;
the integrated circuit board is integrated with a single chip microcomputer, a first temperature sensor, a second temperature sensor, a filter amplifier, an A/D converter, a communication module, a driving module, a storage chip and a power supply module; the single chip microcomputer is respectively connected with the A/D converter, the communication module, the driving module and the storage chip; the first temperature sensor and the second temperature sensor are respectively connected with the filter amplifier, and the filter amplifier is connected with the A/D converter; the temperature sensing head of the first temperature sensor is positioned in the shell and used for detecting normal room temperature; the temperature sensing head of the second temperature sensor is positioned outside the shell and used for detecting the temperature around the sensor when a fire disaster happens.
2. A fire detector as claimed in claim 1, wherein: and a channel through which heat passes is arranged on one side of the temperature sensing head of the second temperature sensor.
3. A fire detector as claimed in claim 1 or 2, wherein: and the integrated circuit board is also integrated with an LED light state indicating module, and the LED light state indicating module is connected with the singlechip and used for sending light indicating signals including alarm signals, fault signals and normal monitoring signals when the detector meets the conditions.
4. The utility model provides an wisdom fire sprinkler system which characterized in that: the fire detector system comprises at least 1 centralized controller, wherein each centralized controller is correspondingly connected with a plurality of zone controllers in a communication mode, a plurality of fire detectors according to any one of claims 1 to 3 are arranged in a zone governed by each zone controller, the zone controllers are correspondingly connected with the fire detectors in the communication mode, and each fire detector is connected with one spray head.
5. The intelligent fire sprinkler system of claim 4, wherein: the automatic fusing device is arranged on the spray head and comprises a temperature sensing element and a heating element arranged on the temperature sensing element, and the heating element is connected with a driving module of the fire detector.
6. The intelligent fire sprinkler system of claim 1, wherein the zone controller comprises a fire information processing module, a location information processing module, a linkage execution module, an alarm module and a main controller connected to the modules; the fire information processing module is used for analyzing the temperature information transmitted by the fire detector; the position information processing module is used for analyzing the position information transmitted by the fire detector, finding the fire detector closest to the fire detector by taking the fire detector as a center and displaying the position information; the linkage execution module is used for simultaneously starting a spray head corresponding to the central fire detector and a spray head corresponding to the fire detector closest to the central fire detector to perform configuration linkage water spraying fire extinguishing when the fire information is analyzed to be abnormal; the alarm module is used for sending out an alarm prompt when starting water spraying and fire extinguishing.
7. The intelligent fire sprinkler system of claim 6, wherein the zone controller further comprises a mode switching module, the mode switching module is in communication connection with the fire detector, the mode switching module is configured to control the fire detector to be in an operating mode or a detection mode, the operating mode refers to the fire detector controlling the spray head to spray water when a fire occurs, and the detection mode refers to the fire detector verifying whether its internal system is operating normally without starting the spray head to spray water.
8. The intelligent fire-fighting spraying system according to any one of claims 4 to 7, wherein the spraying system further comprises a cloud server and a terminal operating system which are connected with each other, the cloud server is connected with the centralized controller and is used for performing comprehensive matching processing on the on-site fire information acquired by the centralized controller and feeding the on-site fire information back to the terminal operating system; the terminal operation system comprises a mobile phone moving end and a fire-fighting command center.
9. A fire control method using the intelligent fire sprinkler system according to any one of claims 4 to 8, the method comprising:
the region controller periodically inspects the fire detectors in the region, and then acquires the temperature information and the position information of each fire detector; the centralized controller regularly patrols and examines each region controller, and the state of all fire detectors in each region is mastered in real time through the region controllers;
when the area controller monitors that the temperature information of a certain fire detector is abnormal, control instructions are sent to the fire detector and other fire detectors closest to the fire detector at the same time, and the fire detectors start corresponding spray heads to spray water after receiving the control instructions in a configuration linkage mode;
if the other fire detectors closest to the fire detector relate to cross-region detectors, the region controller to which the fire detector belongs sends a control instruction to the fire detector to which the fire detector belongs, and sends state information to the centralized controller at the same time, the centralized controller sends the control instruction to the region controller to which the cross-region detectors belong according to the state information, and then the cross-region fire detector is controlled to start corresponding spray heads to spray water.
10. A fire control method using the intelligent fire sprinkler system according to any one of claims 4 to 8, the method comprising:
the region controller periodically inspects the fire detectors in the region, and then acquires the temperature information and the position information of each fire detector; the centralized controller regularly patrols and examines each region controller, and the state of all fire detectors in each region is mastered in real time through the region controllers;
when the zone controller monitors that temperature information of a certain fire detector is abnormal, a superior control instruction is sent to the fire detector, after the fire detector receives the superior control instruction, the same-level control instruction is sent to other fire detectors closest to the fire detector, and the fire detectors start corresponding spray heads to spray water in a configuration linkage mode according to the superior control instruction and the same-level control instruction respectively;
if the fire detector and other fire detectors closest to the fire detector relate to cross-region detectors, the region controller to which the fire detector belongs sends state information to the integrated controller while sending the superior control instruction, and the integrated controller sends a control instruction to the region controller to which the cross-region detectors belong according to the state information, so that the cross-region fire detectors are controlled to start corresponding spray heads to spray water.
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| US5486811A (en) * | 1994-02-09 | 1996-01-23 | The United States Of America As Represented By The Secretary Of The Navy | Fire detection and extinguishment system |
| CN109316693A (en) * | 2018-09-25 | 2019-02-12 | 浙江瑞城消防设备有限公司 | A kind of novel wisdom fire-fighting system |
| CN110051953A (en) * | 2019-05-15 | 2019-07-26 | 智慧式有限公司 | A kind of wisdom formula fire-fighting system |
| CN210521617U (en) * | 2019-05-27 | 2020-05-15 | 北京永佳消防技术有限公司 | Building fire sprinkler control system |
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