KR101656491B1 - Apparatus for remote controlling in sprinkler - Google Patents

Apparatus for remote controlling in sprinkler Download PDF

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Publication number
KR101656491B1
KR101656491B1 KR1020150087605A KR20150087605A KR101656491B1 KR 101656491 B1 KR101656491 B1 KR 101656491B1 KR 1020150087605 A KR1020150087605 A KR 1020150087605A KR 20150087605 A KR20150087605 A KR 20150087605A KR 101656491 B1 KR101656491 B1 KR 101656491B1
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South Korea
Prior art keywords
fire
zone
sprinkler
repeater
signal
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KR1020150087605A
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Korean (ko)
Inventor
윤종근
윤해수
윤성수
김성철
이태균
윤지수
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윤종근
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Priority to KR1020150087605A priority Critical patent/KR101656491B1/en
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Fire Alarms (AREA)

Abstract

The present invention relates to a sprinkler control device which can control the opening of a sprinkler even if a fire does not occur. The embodiment of the present invention is characterized by receiving fire status information for each zone in a building, selecting a zone to be extinguished according to fire status information, and transmitting fire extinguishing signals for indicating fire extinguishing to the sprinklers installed in the zone to be extinguished server; A relay for transmitting a head opening signal for opening the sprinkler head when the fire fighting signal is received from the fire management server; A sprinkler installed in the same area as the repeater to open a sprinkler head by heating the hot wire adjacent to the built-in temperature sensor to a predetermined melting point temperature when receiving a head opening signal from the repeater; A wired / wireless communication network for establishing wired communication or wireless communication in the relay period with the fire management server; And a relay line for providing wired communication or wireless communication between the repeater and the sprinkler.

Description

Apparatus for remote control in sprinklers

The present invention relates to a sprinkler control device which can control the opening of a sprinkler even if a fire does not occur.

In recent years, when most of the buildings have been made large and large and a fire occurred in the center of a high-rise building, fire suppression using a fire truck was not smooth and rapid fire evolution did not occur. As a result, a sprinkler for fire suppression was installed on the ceiling of each floor of the high-rise building so that fire trucks could be extinguished even before they arrived at the scene. That is, a fire-extinguishing sprinkler is installed inside and outside of a building or a factory to prevent fire from spreading when a fire occurs and to suppress the fire at the same time.

1 shows a sprinkler for fire suppression according to the prior art. The fire suppression sprinkler includes a branch pipe (1) fixed to the bottom surface of the slab (5) and branch connected to a fire supply pipe (not shown) for supplying digested water, and a branch pipe And an elbow 4 to which the sprinkler 3 supported by the spool 2 is screwed.

These fire-extinguishing sprinklers are operated in conjunction with temperature sensors installed adjacent to the sprinkler head. The sprinkler head 3 installed in the building automatically opens the sprinkler head 31 when a high temperature due to the fire is detected by the temperature sensor, so that the sprinkler head 31 sprays water at a high pressure to evolve the fire.

However, the conventional sprinkler has a mechanical structure in which the sprinkler head is opened and the water is sprayed when the heat source is above 72 ° C. at the time of fire.

Therefore, since the water spray can be performed when a heat source is applied to the sprinkler head, there is a problem that fire extinguishing is not possible before the heat source is applied to the sprinkler head.

In addition, there is a problem that it is impossible to open the sprinkler because the remote control can not be performed even if the sprinkler of the desired area is opened to prevent the spread of the fire.

In addition, there is a problem that it is not possible to use the sprinkler because the sprinkler can not be remotely controlled when the use of the sprinkler is required due to the shortage of the firefighter at the time of the fire.

Korean Patent Publication No. 10-2006-0119690

SUMMARY OF THE INVENTION It is an object of the present invention to provide a remote control device for a sprinkler capable of remotely controlling the opening of a sprinkler head. And a means for opening the sprinkler head even if no fire occurs.

The embodiment of the present invention is characterized by receiving fire status information for each zone in a building, selecting a zone to be extinguished according to fire status information, and transmitting fire extinguishing signals for indicating fire extinguishing to the sprinklers installed in the zone to be extinguished server; A relay for transmitting a head opening signal for opening the sprinkler head when the fire fighting signal is received from the fire management server; A sprinkler installed in the same area as the repeater to open a sprinkler head by heating the hot wire adjacent to the built-in temperature sensor to a predetermined melting point temperature when receiving a head opening signal from the repeater; A wired / wireless communication network for establishing wired communication or wireless communication in the relay period with the fire management server; And a relay line for providing wired communication or wireless communication between the repeater and the sprinkler.

The sprinkler includes a temperature sensor installed in a sprinkler head; A hot wire installed on the sprinkler head; A heating driver for supplying power to the hot wire; And a spray controller for controlling the heating driver to heat the hot wire when the head opening signal is received from the relay device and to open the sprinkler head when the measured temperature measured through the temperature sensor reaches the melting point temperature .

The fire status information for each zone received from the fire brigade terminal may include the zone identification number, the fire occurrence by zone, and the zone temperature.

Wherein the fire management server comprises: a zone-specific injection condition database storing a generation condition of the fire-fighting injection signal for each zone; And a fire management unit for transmitting the fire fighting signal to a repeater installed in a zone that satisfies a generation condition of the fire fighting signal as a result of receiving fire status information for each zone in the building.

Wherein the fire management server comprises: an electronic map generation unit for generating a zone display electronic map displaying the location of each zone in the building and the zone identification number; And a display window for displaying a fire occurrence area and a sprinkler operation area on the zone display electronic map.

According to the embodiment of the present invention, since the opening of the sprinkler head can be remotely controlled by having a relay, fire evolution can be performed remotely instead of on the spot. In addition, according to the embodiment of the present invention, it is possible to open the sprinkler head if necessary, even if heat due to fire is not generated, so that efficient fire evolution can be performed.

FIG. 1 is a view showing a state where a sprinkler is installed. FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device for a sprinkler.
3 is a photograph showing a wiring diagram of a communication line between a repeater and a sprinkler according to an embodiment of the present invention.
4 is a block diagram of the construction of a sprinkler according to an embodiment of the present invention;
5 is a block diagram of a configuration of a fire management server according to an embodiment of the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in order to explain the present invention in detail so that those skilled in the art can easily carry out the present invention. . Other objects, features, and operational advantages of the present invention, including its effects and advantages, will become more apparent from the description of the preferred embodiments. It should be noted that the same reference numerals are used to denote the same or similar components in the drawings.

3 is a photograph showing a wiring diagram of a communication line between a repeater and a sprinkler according to an embodiment of the present invention. FIG. 4 is a schematic view of a remote control device of a sprinkler according to an embodiment of the present invention. FIG. 5 is a block diagram illustrating a configuration of a fire management server according to an embodiment of the present invention. Referring to FIG.

The present invention is a fire-extinguishing system that can be remotely controlled by installing electrical equipment in a mechanical sprinkler 200 in the vicinity of a fire in a fire and can fire artificially in a desired area by selecting a sprinkler head.

An artificial heat can be applied to the upper end of the temperature sensor 240 of the sprinkler head by additionally mounting the electric hot wire 230. For this purpose, the sprinkler head can be selectively and artificially controlled by operating the fire management server 300 and the repeater 100 (for signal addresses).

In addition, the fire management server 300 may map a location of the sprinkler 200 by adding a location area, and display a fire place and a sprinkler 200 on a display board and a PC screen. You can also add a sprinkler head remote control switch on the PC screen.

2, the remote control device of the sprinkler 200 of the present invention includes a wired / wireless communication network 500, a relay line 600, a sprinkler 200, a repeater 100, and a fire management server 300 ).

The wired / wireless communication network 500 is a communication network that enables wired communication or wireless communication between the fire control server 300 and the relay device 100. When the wired / wireless communication network 500 is implemented as a wireless communication network, a wireless mobile communication network including a base transceiver station (BTS), a mobile switching center (MSC), and a home location register (HLR) So that data communication can be performed. For reference, a mobile radio communication network includes, in addition to a base station (BTS), a mobile switching center (MSC), and a home location register (HLR), an access gateway (Access Gateway) Data Serving Node), and the like. In addition, when the wired / wireless communication network 500 is implemented as a wired communication network, it can be implemented as a network communication network, and data communication can be performed according to an Internet protocol such as TCP / IP (Transmission Control Protocol / Internet Protocol).

Also, the wired / wireless communication network 500 can transmit fire status information from the fire brigade terminal 400 to the fire management server 300. When a fire occurs, the firefighting officer patrols each zone in the building and grasps the fire condition, and can transmit the fire status information to the fire fighting injection server through the fire brigade terminal 400.

The firefighting officer terminal 400 describes a smart phone as an example. However, the terminal 400 may be a desktop PC, a tablet PC, a slate PC, a notebook computer, ), And so on. Of course, it is needless to say that the terminal to which the present invention is applicable is not limited to the above-described type, but may include both terminals capable of communicating with external devices. For reference, a smart phone is an intelligent terminal that adds a computer support function such as internet communication and information search to a mobile phone, and can install an application desired by the user.

Also, the fire status information for each zone received from the firefighting officer terminal 400 may include the zone identification number, the fire occurrence by zone, and the zone temperature.

Such a zone identification number, whether or not a fire occurs in each zone, and the temperature of each zone can be input directly to the firefighting officer terminal 400 through a thermometer, a naked eye, or the like by a firefighting officer. In addition, an application (hereinafter referred to as "fire status monitoring application") is installed in the fire department and the terminal for zone identification, brightness measurement, and temperature measurement to determine the zone identification number, Can be automatically grasped and transmitted to the fire management server 300. For example, each zone has a Wi-Fi that transmits the zone identification number. The fire status application can identify the zone identification number via Wi-Fi. The brightness of the zone is measured through the brightness sensor And the temperature in the zone can be measured through the temperature measurement sensor.

The relay line 600 provides wired or wireless communication between the repeater 100 and the sprinkler 200. When the relay line 600 is implemented as a wired communication line, the communication method may be wired such as Ethernet, universal serial bus, IEEE 1394, serial communication, and parallel communication. A communication method can be used. Also, when the relay line 600 is implemented as a wireless communication line, a wireless communication scheme such as Infrared Radiation, Bluetooth, Home Radio Frequency, and Wireless LAN may be used .

The repeater 100 is installed in the same area (room, office) in the building as a pair with the sprinkler 200. When the fire extinguishing signal is received from the fire management server 300, the repeater 100 generates a head opening signal for opening the sprinkler head and transmits it to the sprinkler 200. 3 is a photograph showing a connection circuit diagram of the repeater 100 and the sprinkler 200. As shown in FIG.

The sprinkler 200 is installed in the same area as the repeater 100 and when the head opening signal is received from the repeater 100, the heating wire 230 adjacent to the built-in temperature sensor 240 is heated to a preset melting point temperature , It tries to fire by opening the sprinkler head. 4, the sprinkler 200 may include a sprinkler communication unit 250, a temperature sensor 240, a heating wire 230, a heating driving unit 220, and a spray controller 210.

The sprinkler communication unit 250 performs data communication with the relay device 100. In the case of wired communication with the repeater 100, communication can be performed according to the TCP / IP Internet protocol. When wireless communication is performed, wireless communication methods such as mobile communication (3G, 4G) and wireless LAN may be used.

The temperature sensor 240 is installed in the sprinkler head to sense the temperature of the sprinkler head. The sprinkler head is made of metallic material and has high thermal conductivity.

The hot wire 230 may be embedded in the sprinkler head or attached to the upper end of the temperature sensor 240. The heating line 230 is a high resistance material, which generates heat by the flow of electric current. For example, the heating line 230 can be realized by a nichrome wire and can generate heat by receiving a voltage of 24 [V]. The electric hot wire 230 can be mounted on the upper end of the temperature sensor 240 of the sprinkler head, so that heat can be artificially applied. Accordingly, when a current flows through the heat line 230, the temperature sensor 240 can be heated to sense the temperature to be heated.

The heating driver 220 is a power source for supplying electric power to the heating wire 230. And preferably a voltage of 24 [V] is provided.

When the head opening signal is received from the repeater 100, the injection control unit 210 controls the heating driving unit 220 to heat the heating wire 230. When the measured temperature measured through the temperature sensing sensor 240 reaches the melting point temperature The sprinkler head is opened. When the melting temperature of 72 ° C is measured by the temperature sensor 240 due to the heating of the heating wire 230, the control of opening the sprinkler head is performed. This opening of the sprinkler head can be done mechanically, as is known in the art, or can be done electronically.

When the melting point is reached, the molten metal that is combined with the sprinkler head and the sprinkler head melts to open the sprinkler head apart from the main body. When the opening is performed by an electronic system, the motor driving the position of the sprinkler head can be controlled to change the position of the sprinkler head to the open position.

The fire management server 300 receives the fire status information for each zone in the building from the fire brigade terminal 400 and selects the zone to be extinguished according to the fire status information and sends the fire extinguishing gas to the sprinkler 200 installed in the fire extinguishing zone, The fire extinguishing signal is transmitted. The fire management server 300 may be connected to the repeater 100 to enable selective and artificial control of the sprinkler head by the operation of the fire management program. Also, the fire management server 300 can map the fire management program by adding a location area of the sprinkler 200, display the fire place and the sprinkler 200 on the display panel 340 and the display window 340 (PC screen) , And a sprinkler head remote control switch function on the display window 340 (PC screen).

For this purpose, the fire management server 300 has the same configuration as that of a typical web server in hardware in order to implement the above-described operation, and various types of software such as C, C ++, Jaba, Visual Basic, And includes a program module that performs various functions. In addition, it can be implemented using a web server program that is variously provided according to operating systems such as dos, window, linux, unix, and macintosh for general server hardware. Typical examples include a Web site used in a Windows environment, Internet Information Server (IIS), and CERN, NCSA, and APPACH used in a UNIX environment.

5, the fire management server 300 may include a server communication unit 350, a zone-specific injection condition database 310, and a fire management unit 320. [ In addition, an electronic map generating unit 330 and a display window 340 may be included.

The server communication unit 350 supports protocols of hardware and software that respectively communicate with the repeater 100 installed in each zone. The server communication unit 350 can perform data communication in accordance with an Internet protocol such as TCP / IP (Transmission Control Protocol / Internet Protocol). In addition, the server communication unit 350 supports a protocol for communicating with the fire brigade terminal 400. Therefore, the fire-fighting officer terminal 400 can receive the fire status information for each zone. Such zone-specific fire status information may include the zone identification number, whether fire has occurred by zone, and zone temperature. In addition, a zone display electronic map, and a display window 340 may be included.

The zone-specific injection condition database 310 is a database that stores the generation conditions of the fire-fighting injection signal for each zone. For example, it is assumed that there are 20 zones from the first zone to the 20th zone in any one building, and the second zone, the fourth zone, the seventh zone, and the eighth zone are adjacent to the first zone. Even if a fire does not occur in the first zone, even if any one of the adjoining zones 2, 4, 7, and 8 has a fire extinguishing signal to the repeater 100 installed in the first zone And stores the information to be transmitted.

The regional injection condition database 310 includes a hard disk drive, an SSD drive, a flash memory, a CF card, an SD card, A module capable of inputting and outputting information such as an SM card (Smart Media Card), an MMC card (Multi-Media Card), or a memory stick, or may be provided in a separate device .

The fire management unit 320 transmits fire extinguishing signals to the repeater 100 installed in the area that satisfies the generation condition of the fire extinguishing signal as a result of receiving the fire status information for each zone in the building. For example, it is assumed that there are 20 zones from the first zone to the 20th zone in any one building, and the second zone, the fourth zone, the seventh zone, and the eighth zone are adjacent to the first zone. Even if a fire does not occur in the first zone, if fire condition information indicating that a fire has occurred in any of the adjoining second zone, fourth zone, seventh zone, and eighth zone is received, And sends the fire extinguishing spraying signal to the repeater 100.

The electronic map generating unit 330 generates a zone display electronic map, which is an electronic map in which the position of each zone in the building and the zone identification number are displayed. Assuming that the first to fifth zones are located on the first floor of the building, the first floor, the second zone, the third zone, the fourth zone and the fifth zone are displayed on the floor plan of the first floor, And generates an electronic map displaying the number.

The display window 340 displays the fire occurrence area and the sprinkler 200 operation area on the zone display electronic map. Upon receipt of the fire status information, the fire zone can be displayed according to the received information, and the current operation area of the sprinkler 200 can be displayed. Also, the fire place and the sprinkler 200 can be displayed on the electric signboard and the display window 340 (PC screen), and the sprinkler head remote control switch function can be provided on the display window 340 (PC screen). Although separate input means may be provided for the remote control switch, it may be implemented as a touch screen panel capable of inputting the display window 340. [

The touch screen panel includes a display window 340 provided on a front surface of a smartphone terminal to provide a touch screen screen capable of simultaneously performing input and display, and displaying a work screen, and includes a graphical user interface (GUI) Graphic User Interface). When the touch panel is implemented as a touch screen panel, the keyboard of the keyboard, which is the input unit, overlaps the work screen in a graphic form. The position and transparency of the keyboard layout input window can be adjusted by the user. Therefore, the administrator can input necessary characters or symbols by pressing the keyboard of the keyboard that is displayed in an overlapped manner.

Therefore, according to the embodiment of the present invention, when a fire is detected through the detector, the alarm type, the electric signboard of the receiver, and the PC monitor, the fire officer who grasps the location of the fire with the electric signboard and the PC monitor can dispatch to the fire place. The firefighter officer dispatches the fire status information and transmits the fire status information to the fire control server 300 of the disaster prevention room.

The fire management server 300 of the disaster prevention room having received the fire status information sets a fire extinguishing zone and exposes the sprinkler 200 in the fire extinguishing zone and neighboring fire extinguishing zone to proceed with the fire evolution. The firefighting officer reports the evolution status in real time, and the fire control server 300 of the disaster prevention room, which receives the status report, can terminate the fire evolution and lock the alarm valve.

The embodiments of the present invention described above are selected and presented in order to assist those of ordinary skill in the art from among various possible examples. The technical idea of the present invention is not necessarily limited to or limited to these embodiments And various changes, modifications, and equivalents may be made without departing from the spirit and scope of the present invention.

100: Repeater
200: Sprinkler
210:
220:
230: Heat line
240: Temperature sensor
250: sprinkler communication part
300: Fire management server

Claims (5)

A fire management server for receiving fire status information for each zone in the building, selecting a zone to be extinguished according to fire status information, and transmitting a fire extinguishing signal for indicating fire extinguishing to the sprinkler installed in the zone to be extinguished;
A relay for transmitting a head opening signal for opening the sprinkler head when the fire fighting signal is received from the fire management server;
A sprinkler installed in the same area as the repeater to open a sprinkler head by heating the hot wire adjacent to the built-in temperature sensor to a predetermined melting point temperature when receiving a head opening signal from the repeater;
A wired / wireless communication network for establishing wired communication or wireless communication in the relay period with the fire management server; And
And a relay line for providing wired communication or wireless communication between the repeater and the sprinkler,
The sprinkler includes a temperature sensor installed in a sprinkler head; A hot wire installed on the sprinkler head; A heating driver for supplying power to the hot wire; And a spray controller for controlling the heating driver to heat the hot wire when the head opening signal is received from the relay device and to open the sprinkler head when the measured temperature measured through the temperature sensor reaches the melting point temperature, ,
The fire status information for each zone received from the firefighting officer terminal includes a zone identification number, a fire occurrence by zone, and a zone temperature,
Wherein the fire management server comprises: a zone-specific injection condition database storing a generation condition of the fire-fighting injection signal for each zone; A fire management unit for transmitting the fire extinguishing signal to a repeater installed in a zone that meets a generation condition of the fire extinguishing signal as a result of receiving fire status information for each zone in the building; An electronic map generation unit for generating a zone display electronic map in which a position of each zone in the building and a zone identification number are displayed; And an indication window for indicating a fire occurrence zone and a sprinkler operation zone on the zone display electronic map,
The zone-specific injection condition database stores the generation conditions of the fire-fighting injection signal for each adjacent zone among the zones in any one of the buildings, The fire extinguishing signal is generated and transmitted to the repeater installed in the first zone,
The fire control unit transmits the fire extinguishing signal to a repeater installed in a zone that meets the generation condition of the extinguishing gas injection signal. Even if no fire occurs in the first zone, any one of the plurality of adjacent second zones When a fire occurs, the fire extinguishing signal is generated and transmitted to the repeater installed in the first zone,
The electronic map generation unit displays each zone of each floor in the building and generates an electronic map together with the identification numbers of the zones in each floor,
Wherein the sprinkler head remote control switch function is provided on the display window.
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107492224A (en) * 2017-09-13 2017-12-19 三石量子（苏州）信息科技有限公司 A kind of subway monitors Safety Cities system
CN108035707A (en) * 2017-11-15 2018-05-15 中国石油天然气股份有限公司 Dangerous temperature monitoring method before a kind of combustion in situ igniting
KR101954766B1 (en) 2018-11-05 2019-03-06 주식회사 영승이엔에스 Sprinkler management system using by ultrasonic
KR102110790B1 (en) * 2019-08-28 2020-05-14 (주)케이제이종합감리 Fire fighting management system
KR102166152B1 (en) * 2020-01-22 2020-10-15 (주)서정엔지니어링 Operation control system of sprinkler based on environment factor and setting factor
KR102166150B1 (en) * 2020-01-22 2020-10-15 (주)서정엔지니어링 Operation control system of sprinkler based on environment factor and setting factor
KR102329774B1 (en) * 2021-03-12 2021-11-22 주식회사 창성에이스산업 Gas detection system for detecting gas leaks wirelessly
KR102676668B1 (en) * 2021-02-05 2024-06-19 주식회사 원익홀딩스 sprinkler system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060119690A (en) 2005-12-08 2006-11-24 주식회사 파워텍 Sprinklerhead
JP2007213307A (en) * 2006-02-09 2007-08-23 Machiko Shimizu Fire monitoring and extinguishment/water discharge control system
KR101399475B1 (en) * 2012-12-28 2014-06-02 주식회사 퓨처테크 Unmanned fire control system of realtime smart type
KR101439860B1 (en) * 2013-06-21 2014-09-16 최진상 Sensing System and Method for fire in realtime

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060119690A (en) 2005-12-08 2006-11-24 주식회사 파워텍 Sprinklerhead
JP2007213307A (en) * 2006-02-09 2007-08-23 Machiko Shimizu Fire monitoring and extinguishment/water discharge control system
KR101399475B1 (en) * 2012-12-28 2014-06-02 주식회사 퓨처테크 Unmanned fire control system of realtime smart type
KR101439860B1 (en) * 2013-06-21 2014-09-16 최진상 Sensing System and Method for fire in realtime

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107492224A (en) * 2017-09-13 2017-12-19 三石量子（苏州）信息科技有限公司 A kind of subway monitors Safety Cities system
CN108035707A (en) * 2017-11-15 2018-05-15 中国石油天然气股份有限公司 Dangerous temperature monitoring method before a kind of combustion in situ igniting
KR101954766B1 (en) 2018-11-05 2019-03-06 주식회사 영승이엔에스 Sprinkler management system using by ultrasonic
KR102110790B1 (en) * 2019-08-28 2020-05-14 (주)케이제이종합감리 Fire fighting management system
KR102166152B1 (en) * 2020-01-22 2020-10-15 (주)서정엔지니어링 Operation control system of sprinkler based on environment factor and setting factor
KR102166150B1 (en) * 2020-01-22 2020-10-15 (주)서정엔지니어링 Operation control system of sprinkler based on environment factor and setting factor
KR102676668B1 (en) * 2021-02-05 2024-06-19 주식회사 원익홀딩스 sprinkler system
KR102329774B1 (en) * 2021-03-12 2021-11-22 주식회사 창성에이스산업 Gas detection system for detecting gas leaks wirelessly

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