KR102384551B1 - Notification system in case of fire in apartment house - Google Patents

Abstract

The present invention relates to a notification system of an apartment house in case of a fire and, more specifically, to a notification system of an apartment house in case of a fire, which increases the accuracy of monitoring and management of a household fires occurring in the apartment house, and, in particular, minimizes fire damage by having an automatic watering function for stair landings to ensure safe and easy evacuation through stair landings, but also checks malfunctions of sprinklers in the households in advance as well as simultaneously checks load increase of an integrated power meter in each household and transmit check results to a user terminal to prevent the occurrence of the fire in advance.

Description

Notification system in case of fire in apartment house

The present invention relates to a notification system when a fire occurs in an apartment building in the field of firefighting technology, and more particularly, it can increase the monitoring and management accuracy for an intra-household fire occurring in an apartment house, and in particular, it can safely and easily evacuate through a stair landing. It not only minimizes fire damage by having an automatic watering function for stair landings, but also checks in advance for malfunctions of sprinklers in the household, and simultaneously checks the load surge of the integrated power meter in each household and transmits it to the user terminal to reduce the occurrence of a fire. It relates to a notification system in the event of a fire in an apartment house improved to prevent it in advance.

Conventional apartment complexes or large buildings, such as apartment complexes, require continuous management or improvement of fire safety equipment as buildings age. Although more improved firefighting facilities are being provided in newly constructed expensive buildings, it is not easy to regularly manage firefighting facilities in various places in existing old buildings or complexes.

In addition, there is a problem in that many safety accidents are caused due to malfunction of old equipment.

On the other hand, in order to regularly and systematically manage firefighting equipment through the existing infrastructure of an aging building, an increase in the labor cost of specialized personnel or expenses is also a problem.

In addition, the fire management system installed in the apartment house is limited to generating an alarm sound. In other words, it only sounds an alarm and has no function to extinguish the fire.

Moreover, in case of a fire, you want to board the elevator in a hurry, but when the electricity is cut off, the elevator immediately causes a safety accident, so you have to block the boarding itself. It is also necessary to solve the problem that evacuation becomes difficult and safety accidents occur when the heat fills the stair landing.

In particular, in the case of a fire hydrant, it is practically useless in a way because it is impossible for the general public to evacuate and supply fire water by opening the fire hydrant while evacuating.

However, it is a use that firefighters can use upon arrival, and it is practically difficult to utilize it for the initial fire extinguishing by the general public.

In addition, since the sprinklers installed in the household are rarely inspected, in case of a malfunction when a fire actually occurs, it can lead to great casualties.

In addition, as the amount of electricity used within a household is rapidly increasing, it is a reality that there is no function that can suppress the occurrence of a fire by immediately detecting an electric power overload such as a short circuit and notifying the user.

Republic of Korea Patent Registration No. 10-1720184 (2017.03.21.) Fire-fighting notification device in case of fire in an apartment building

The present invention was created to solve the problems in the prior art as described above, and it is possible to increase the monitoring and management accuracy for an intra-household fire occurring in an apartment house, and, in particular, to safely and easily evacuate through the stair landing. It not only minimizes fire damage by having an automatic watering function for stair landings, but also checks in advance for malfunctions of sprinklers in the household, and simultaneously checks the load surge of the integrated power meter in each household and transmits it to the user terminal to reduce the occurrence of a fire. Its main purpose is to provide a notification system in the event of a fire in an apartment house that has been improved to prevent it in advance.

The present invention is a means for achieving the above object, and a plurality of fire detectors 100,110,120 installed in each household of an apartment house, a fire alarm 200 connected to the fire detectors 100,110,120 and installed outdoors, and the fire The management server 300 having an AI (artificial intelligence) function installed in the management room to monitor and control the fire situation of the entire apartment house by wire connected to the alarm 200, and the management server 300 installed in the stair landing (STA) of the apartment house and the management server (300) and a stair landing detector (400) connected wirelessly, a sprinkler detector (700) connected wirelessly with the management server (300), and a user terminal (2) registered to enable wireless communication with the management server (300). In the case of a fire alarm system in an apartment house;

The fire detectors 100, 110, and 120 are driven by commercial power within the household and form a circular case 130, a dome-type camera 140 installed at the center of the circular case 130, and the dome-type camera 140. The heat sensor 160 and the smoke sensor 170 installed on both sides, and the memory that is built in the circular case 130 and is connected to the dome type camera 140 to store real-time images captured by the dome type camera 140 in an overlapping manner 150 and the memory 150 are electrically connected and connected to the fire alarm 200 by wire, and are stored in the memory 150 according to a detection signal of either the heat detector 160 or the smoke detector 170 . a detector controller 180 for transmitting the most recent image to the fire alarm 200;

A transmitter (TM) for transmitting a specific signal transmitted from the management server 300 is further embedded in the fire alarm 200, and only the signal of the transmitter (TM) corresponds to the detector controller 180 of the fire detectors 100, 110, and 120. A receiver (RV) that responds to this is built-in, and the lamp (LP) is designed to light up when the receiver (RV) responds, and the lamp (LP) is fixed to the upper surface of the sensor controller 180 and opens the sensor cover when lighting configured to be externally verifiable through;

The management server 300 periodically sends a specific signal to check the wiring status of each fire detector 100, 110, 120 through the fire alarm 200 in each household, and transmits the result through the registered user terminal 2 become;

It further includes a main supply pipe 500 installed buried from the first floor to the top floor through the stair landing (STA) wall of the apartment house, and the stair landing (STA) has a branch supply pipe 510 branched from the main supply pipe 500. is provided, and the end of the branch supply pipe 510 is piped to be located in the center of the stair landing (STA), and a nozzle pipe 520 capable of spraying fire extinguishing water is connected to the end of the branch supply pipe 510, and the At a distance from the nozzle tube 520, a stair landing sensor 400 is installed on the upper side, and a stair landing camera 410 controlled by a controller and the management server under the control of the controller inside the stair landing sensor 400 300) and a wireless communication module for wireless communication is built-in;

Each generation integrated power meter (PW1, PW2, PW3, ... PWn) is connected to the management server 300 by wire, and each generation integrated power meter (PW1, PW2, PW3, ... PWn) is daily and monthly The management server 300 calculates and manages each of the usage averages, and when the average usage exceeds three times or more at any one point in time, an alarm is issued through the set user terminal (2). A notification system is provided.

At this time, the sprinkler detector 700 includes a 'U'-shaped bypass pipe 710 installed in a part of the sprinkler pipe SPL, a detection terminal 720 installed in the bypass pipe 710, and the detection terminal 720 ) and a detector 730 for wirelessly communicating with the management server 300 to transmit the detection result, and a communication module 740 installed in the detector 730 to perform wireless communication; The detection terminal 720 is a terminal housing 722 having water-through holes (HOL) formed at both ends, and first and second terminals ( 724 and 726 and the terminal spring 728 interposed between the first and second terminals 724 and 726 is also characterized.

According to the present invention, not only increase the monitoring and management accuracy for intra-household fires occurring in an apartment house, but also minimize fire damage by equipping the automatic watering function for the landing so that it can be safely and easily evacuated through the landing. It is possible to obtain improved effects to prevent fire in advance by not only checking the malfunction of the sprinkler in the household in advance, but also checking the load surge of the integrated power meter in each household at the same time and transmitting it to the user terminal.

1 is an exemplary configuration block diagram of a system according to the present invention;
2 is an exemplary view showing a fire detection structure within a household constituting the system according to the present invention.
3 is an exemplary diagram of a schematic apartment house showing a construction example of the system according to the present invention.
4 is an exemplary view showing an installation example of a landing detector constituting the system according to the present invention.
5 is an exemplary view of a nozzle tube constituting the system according to the present invention.
6 is an exemplary view showing the detection structure of the sprinkler constituting the system according to the present invention.
7 is an exemplary diagram showing an example of managing an integrated power meter for each generation constituting the system according to the present invention.

Hereinafter, a preferred embodiment according to the present invention will be described in more detail with reference to the accompanying drawings.

1, the system according to the present invention includes a plurality of fire detectors 100,110,120 installed in each household of an apartment house, and a fire alarm 200 connected to the fire detectors 100,110,120 by wire and installed outdoors; The management server 300 is installed in the management room to monitor and control the fire situation of the entire apartment building connected to the fire alarm 200 by wire, and it is installed in the STA of the apartment building and connects to the management server 300 wirelessly. It includes a connected stair landing detector 400 , a sprinkler detector 700 wirelessly connected to the management server 300 , and a user terminal 2 registered to enable wireless communication with the management server 300 .

At this time, as in the example of FIG. 2 , the fire detectors 100 , 110 , 120 use a commercial power source within the household, a circular case 130 forming an external shape, and a dome-type camera 140 installed at the center of the circular case 130 ) And, the heat sensor 160 and the smoke sensor 170 installed on both sides of the dome-type camera 140, and the dome-type camera 140 is built in the circular case 130 and connected to the dome-type camera 140. A memory 150 for storing periodic images in an overlapping manner, and electrically connected to the memory 150 and connected to the fire alarm 200 by wire, any one of the heat detector 160 and the smoke detector 170 and a detector controller 180 for transmitting the most recent image stored in the memory 150 to the fire alarm 200 according to the detection signal.

In this way, the fire detectors 100, 110, and 120 according to the present invention do not separate the heat detector 160 and the smoke detector 170 and install them separately, but instead are installed in one case and installed simultaneously, so that the detection function, that is, the detection performance It is configured to further increase this accuracy.

In particular, the dome-type camera 140 is used in parallel to detect a fire with the heat detector 160 or the smoke detector 170 and the end combination, thereby preventing the malfunction of the fire alarm 200 according to the erroneous detection in advance, and more accurately configured to secure a detection function.

To this end, the situation within the household is captured in real time by the dome-type camera 140, and the captured image is stored in the memory 150, but since the memory 150 capacity is fixed, it is stored in an overlapping manner like a black box image.

In this case, the imaging interval may be 30 seconds or 1 minute intervals, and images are taken and stored according to this cycle.

In addition, the detector controller 180 does not transmit detection information to the fire alarm 200 so as to sound an alarm immediately upon detection by the heat detector 160 or the smoke detector 170, as in the prior art, but two detectors are detected at once. In this case, it is immediately transmitted to the fire alarm 200 for a fire alarm, and if only one of the two is detected, the video information is transmitted to the fire alarm 200 and then the fire alarm 200 is sent back to the management server 300. When it is transmitted and received as a control signal that a fire situation read from the AI function of the management server 300 is received, a fire alarm is issued, thereby preventing a malfunction in advance.

In particular, when the wire between the fire detectors 100 , 110 , and 120 and the fire alarm 200 is disconnected, the above operation is meaningless.

Accordingly, a transmitter (TM) that transmits a specific signal transmitted from the management server 300 is built in the fire alarm 200 to automatically check this, and the detector controller 180 of the fire detectors 100, 110, 120 includes A receiver (RV) that responds only to the signal of the transmitter (TM) is built-in, and the lamp (LP) is designed so that when the receiver (RV) responds, the lamp (LP) is turned on, and the lamp (LP) is the upper surface of the sensor controller 180 It is fixed to the light and can be checked from the outside through the sensor cover when it is turned on.

Thus, the management server 300 periodically sends the above specific signal to check the wiring status of each fire detector 100, 110, 120 through the fire alarm 200 in each household, and when the lamp LP is turned on, the indoor resident can be checked immediately, so that it can be recognized that it is normal, and whether the state is normal or abnormal is immediately transmitted through the registered user terminal (2), so that the resident in the household can immediately check whether the fire detectors (100, 110, 120) in their household are defective and can be repaired and replaced if necessary.

Through this, it is possible to prevent damage to human life due to poor fire detection.

In addition, the management server 300 is a server equipped with an AI (artificial intelligence) function, in particular, by using a well-known deep learning technique to learn the feature points of the image has a feature of immediately reading whether or not a fire. That is, it has the ability to read whether a fire has occurred by continuously learning the initial image of the fire, the progress image, etc., and then learns the image transmitted by the fire alarm 200 or the image transmitted by the stair landing detector 400 . By comparing and analyzing with one image, it is possible to immediately recognize whether a fire has occurred or not.

On the other hand, as illustrated in FIGS. 3 and 4 , the system according to the present invention further includes a main supply pipe 500 installed buried from the first floor to the top floor through the STA wall of the apartment house.

At this time, the main supply pipe 500 is installed facing each other at an interval, and the first and second pumps PP1 and PP2 are installed at the lower end, respectively, and the first and second pumps PP1 and PP2 are connected to the pipe. It is connected to the water tank (TNK) through

In addition, a branch supply pipe 510 is branchedly connected to the main supply pipe 500 to each stair landing (STA) of the apartment house, and an end of the branch supply pipe 510 is piped to be located in the center of the stair landing (STA), and the branching A nozzle pipe 520 capable of spraying fire extinguishing water is connected to an end of the supply pipe 510 .

In addition, the stair landing sensor 400 is installed on the upper side at a distance from the nozzle tube 520 . The stair landing sensor 400 has a stair landing camera 410 installed in the center, and a controller and a wireless communication module are built-in. do.

Thus, it is connected so as to be able to communicate wirelessly with the management server 300 through the wireless communication module, and the first and second pumps PP1 and PP2 are directly connected to the controller of the stair landing detector 400 through a wire.

The stair landing detector 400 configured in this way periodically captures an image and transmits it to the management server 300 , and the management server 300 reads whether a fire has occurred through the AI function.

In this case, the image capturing cycle is preferably 5-10 minutes, and the images captured by the dome-type camera 140 described above are stored in an overlapping manner.

That is, the image transmitted to the management server 300 after shooting is deleted, and the memory provided in the controller can be saved by maintaining a method in which the newly shot image is stored.

Then, when a fire is recognized from the management server 300 and a control signal is received, the stair landing detector 400 operates the first and second pumps PP1 and PP2.

In this case, it is preferable to operate only the pump of the corresponding stair landing (STA).

In addition, the nozzle pipe 520 has a specially designed valve body to withstand the water pressure that normally fills the branch supply pipe 510 as shown in FIG. 5 .

For example, the nozzle pipe 520 is formed at the body BD, a connection end 5210 formed at one end of the body BD and connected to the branch supply pipe 510, and the other end of the body BD. It is composed of a tubular body having a discharge end 5220 to which fire extinguishing water is sprayed.

The connection end 5210 includes a flange 5212, a first fixing plate 5214, a plurality of ribs 5216 for connecting and fixing the first fixing plate 5214 to the flange 5212, and the first fixing plate. It consists of a structure including a square through-hole 5218 formed through the center of the 5214.

Accordingly, a fire-extinguishing water-passage hole (WH) through which fire water can pass is naturally formed between the ribs.

In addition, a second fixing plate 5230 is provided at a distance from the connection end 5210. Although not shown, the second fixing plate 5230 is also fixed by a plurality of ribs, and is also in the center of the second fixing plate 5230. A square through hole is formed through it.

In addition, a first locking protrusion 5240 having a predetermined radius at a distance from the second fixing plate 5230 is formed.

In addition, a second locking step 5250 having a larger radius at a distance from the first locking step 5240 is further formed.

In addition, the first magnet (M1) is grounded on the first stopping protrusion (5240).

In this case, the first magnet M1 has a disk shape, and the polarities of the magnets are different from each other based on the half in the radial direction.

In addition, the square boss BOS is fixed to the center of the circle of the first magnet M1, and the end of the square boss BOS passes through the square through hole formed in the center of the second fixing plate 5230 and then the first , 2 is located in the space between the fixing plates (5214,5230), and a first stop ring (R1) is fixed to the end, and the square boss between the first stop ring (R1) and the second fixing plate (5230) A first spring (S1) fitted to (BOS) is interposed.

Therefore, the first magnet (M1) is basically elastically in close contact with the first locking jaw (5240) by the first spring (S1).

In addition, a square guide rod (ROD) is fixed to the center of the circle of the second magnet (M2), and the guide rod (ROD) passes through the square boss (BOS) to the square through hole of the first fixing plate (5214) (5218), the second stop ring (R2) is fixed to the portion that is not fitted into the square through hole (5218), between the second stop ring (R2) and the second fixing plate 5230, the square boss The second spring S2 is interposed with the first spring S1 fitted to the BOS.

Accordingly, the second magnet M2 is also basically elastically in close contact with the second locking jaw 5250 by the second spring S2.

At this time, the second magnet M2 is also in the form of a disk, and the polarities are different from each other based on the half in the radial direction.

In addition, on the inner circumferential surface of the body BD in the space between the first and second magnets M1 and M2, the first and second solenoids SOL1, SOL1, SOL2) is fixed.

The first and second solenoids SOL1 and SOL2 are a mechanism in which a plurality of coils C are wound around an arc-shaped member H made of synthetic resin, and the direction of the magnetic field is changed according to the direction of the current flowing therein.

That is, according to Ampere's right-hand thread rule, the N pole and S pole are determined at both ends of the coil by the direction of the current applied to the coil.

Therefore, as in the example, the N pole is applied to the right side of the first solenoid SOL1 and the current is passed so that the S pole is applied to the left side, and the S pole is applied to the right side and the N pole is applied to the left side to the second solenoid SOL2. When a current flows, the first magnet M1 is more closely attached to the first locking jaw 5240 by repulsive force, and the second magnet M2 is more and more closely contacted to the second locking jaw 5250 by manpower, so that the pump Safety is ensured so that fire extinguishing water does not leak by performing double sealing while sufficiently withstanding the water pressure before operation.

In this state, if the opposite action occurs, the stimuli of the first and second solenoids (SOL1, SOL2) are reversed, so the first and second magnets (M1, M2) are separated from the first and second stopping jaws (5240 and 5250), respectively. The sealed state is released so that the fire extinguishing water can pass through and be discharged through the discharge end 5220 .

Of course, in this case, the pump is operated, and at the same time the pump operation signal is given, an electrical signal is also applied to the first and second solenoids SOL1 and SOL2 to open the first and second magnets M1 and M2. .

In addition, a spray nozzle 5260 may be screwed to the discharge end 5220 in order to increase the spraying efficiency of the fire extinguishing water.

At this time, the injection nozzle 5260 has an inverted triangular pyramid-shaped distribution hole 5262 fixed to the inner center, and a plurality of injection holes 5264 are formed to be inclined around the injection nozzle 5260 .

Therefore, when the fire extinguishing water is sprayed, the fire extinguishing water is rapidly sprayed over a wide radius while spreading in the radial direction, so that the initial fire suppression effect can be increased, which has the effect of covering the entire STA.

In addition, since the arc-shaped member (H) has to be excellent in durability and corrosion resistance because it is exposed to water for a long time, 10% by weight of porous ceramic alumina, 4% by weight of carbon fiber of 10mm length, and talc powder having a particle size of 10㎛ 3.5% by weight, petrolatum 5% by weight, glutaryl concentrate 5% by weight, phosphite 5% by weight, sodium borohydride 1.5% by weight, and the remaining polypropylene resin is made by molding a molding composition.

At this time, porous ceramic alumina is a water-soluble insulator, such as amorphous silica, expanded pearlite, and kaolin, etc., and has a thermal conductivity of 0.037 W/mK, so it has excellent thermal insulation performance, and excellent heat reflection and heat resistance, thereby increasing durability.

In addition, carbon fiber is added to increase the tensile strength and strength, and the dimensional change during molding is small to increase the accurate maintenance of numerical stabilization, and also enhances the durability by strengthening crack resistance and crack suppression.

In addition, talc powder is a silicate mineral and has the effect of increasing lubricity, corrosion resistance, and surface abrasion resistance.

In addition, petrolatum, glutaryl concentrate, phosphite and sodium borohydride are further added to enhance corrosion resistance and strength characteristics. They block even the generation of micro-bubbles while strengthening bonding and fixing stability during molding, contributing to the realization of corrosion resistance and high strength.

In particular, the present invention includes a sprinkler detector 700 as shown in the example of FIG.

The sprinkler detector 700 includes a 'U'-shaped bypass pipe 710 installed in a part of the sprinkler pipe SPL, a detection terminal 720 installed in the bypass pipe 710, and the detection terminal 720. It includes a detector 730 that detects the detection result and wirelessly communicates with the management server 300 to transmit the detection result, and a communication module 740 that is installed in the detector 730 and performs wireless communication.

At this time, the detection terminal 720 is a terminal housing 722 having water-through holes (HOL) formed at both ends, and the first and second terminals facing each other on both sides of the inner side of the terminal housing 722 and installed in the form of 'a, ㅓ'. 724 and 726 and a terminal spring 728 interposed between the first and second terminals 724 and 726.

Therefore, if the sprinkler pipe (SPL) is filled with fire extinguishing water, water pressure is applied through the water hole (HOL) to compress the terminal spring 728 while the first and second terminals 724 and 726 are in contact with each other. When the power is applied to the detector 730, it is determined to be in a normal state because it is energized.

On the other hand, if the detector 730, which has received the detection signal from the management server 300, applies electricity but is not energized, it is determined that there is no fire extinguishing water and issues a warning, and the management server 300 is connected to the user terminal (2) through the user terminal (2). Notify the matter so that action can be taken.

Through this, it is possible to prevent safety accidents that occur in case of fire due to insufficient fire extinguishing water in the sprinkler.

In addition, as shown in the example of FIG. 7 , each generation integrated power meter (PW1, PW2, PW3, ... PWn) is connected to the management server 300 by wire, and each generation integrated power meter (PW1, PW2, PW3) The management server 300 calculates and manages the average daily and monthly usage of PWn), and when the usage average exceeds 3 times or more at any one point in time, an alarm is issued through the set user terminal (2). It can be configured to prevent fire in advance.

That is, when the usage of the integrated power meters (PW1, PW2, PW3, ... PWn) of each household rises rapidly at any one moment, the management server 300 detecting it immediately notifies the You can have it checked right away.

In this case, it may be a short circuit or a short circuit, or it may cause a fire due to overload due to the intensive use of electric heating devices.

100: fire detector 200: smoke alarm
300: management server 400: stair landing detector
500: main supply pipe

Claims (2)

A plurality of fire detectors 100,110,120 installed in each household of the apartment house, a fire alarm 200 connected to the fire detectors 100,110,120 and installed outdoors, and the fire alarm 200 connected by wire to the entire apartment house A management server 300 equipped with an AI (artificial intelligence) function installed in the management room to monitor and control the fire situation, and a landing detector 400 installed in the STA of an apartment building and connected wirelessly to the management server 300 and In the case of a fire notification system in an apartment house including a sprinkler detector 700 wirelessly connected to the management server 300 and a user terminal (2) registered to enable wireless communication with the management server 300;
The fire detectors 100, 110, and 120 are driven by commercial power within the household and form a circular case 130, a dome-type camera 140 installed at the center of the circular case 130, and the dome-type camera 140. The heat sensor 160 and the smoke sensor 170 installed on both sides, and the memory that is built in the circular case 130 and is connected to the dome type camera 140 to store real-time images captured by the dome type camera 140 in an overlapping manner 150 and the memory 150 are electrically connected and connected to the fire alarm 200 by wire, and are stored in the memory 150 according to a detection signal of either the heat detector 160 or the smoke detector 170 . a detector controller 180 for transmitting the most recent image to the fire alarm 200;
A transmitter (TM) for transmitting a specific signal transmitted from the management server 300 is further embedded in the fire alarm 200, and only the signal of the transmitter (TM) corresponds to the detector controller 180 of the fire detectors 100, 110, and 120. A receiver (RV) that responds to this is built-in, and the lamp (LP) is designed to light up when the receiver (RV) responds, and the lamp (LP) is fixed to the upper surface of the sensor controller 180 and opens the sensor cover when lighting configured to be externally verifiable through;
The management server 300 periodically sends a specific signal to check the wiring status of each fire detector 100, 110, 120 through the fire alarm 200 in each household, and transmits the result through the registered user terminal 2 become;
It further includes a main supply pipe 500 installed buried from the first floor to the top floor through the stair landing (STA) wall of the apartment house, and the stair landing (STA) has a branch supply pipe 510 branched from the main supply pipe 500. is provided, and the end of the branch supply pipe 510 is piped to be located in the center of the stair landing (STA), and a nozzle pipe 520 capable of spraying fire extinguishing water is connected to the end of the branch supply pipe 510, and the At a distance from the nozzle tube 520, a stair landing sensor 400 is installed on the upper side, and a stair landing camera 410 controlled by a controller and the management server under the control of the controller inside the stair landing sensor 400 300) and a wireless communication module for wireless communication is built-in;
Each generation integrated power meter (PW1, PW2, PW3, ... PWn) is connected to the management server 300 by wire, and each generation integrated power meter (PW1, PW2, PW3, ... PWn) is daily and monthly The management server 300 calculates and manages each of the usage averages, and when the average usage exceeds three times or more at any one point in time, an alarm is issued through the set user terminal (2). notification system.
The method of claim 1,
The sprinkler detector 700 includes a 'U'-shaped bypass pipe 710 installed in a part of the sprinkler pipe SPL, a detection terminal 720 installed in the bypass pipe 710, and the detection terminal 720. a detector 730 that detects the detection result and wirelessly communicates with the management server 300 to transmit the detection result, and a communication module 740 installed in the detector 730 to perform wireless communication;
The detection terminal 720 is a terminal housing 722 having water-through holes (HOL) formed at both ends, and first and second terminals ( 724, 726) and a terminal spring (728) interposed between the first and second terminals (724, 726).

Images