Fire alarm system

Abstract

The objective of this invention is to provide a fire alarm system equipped with a transmitter that is easy to use on train station platforms. [Solution] The fire alarm system of the present invention comprises a fire alarm transmitter installed on the platform doors of a train station and a display device installed on the platform doors of a train station, wherein when the transmitter is operated, the display device displays information related to a fire.

Description

Technical Field

[0001] The present invention relates to a fire notification device that transmits fire information by being operated during a fire.

Background Art

[0002] Many automatic fire notification devices are provided with a transmitter together with a fire detector. The transmitter is a device that reports a fire when a person who has discovered the fire presses a push button. Fire notification equipment is also provided on platforms of stations installed underground, etc. On the other hand, in recent years, platform doors have been provided on the platforms of stations (Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When a fire breaks out on the platform of an underground station such as a subway, serious damage occurs. The same applies to platforms provided indoors or semi-indoors. However, in recent years, many stations on platforms have no station staff, and it is desirable that the cooperation of station users be obtained for reporting a fire and the fire be notified by a transmitter. However, since the platform of the station is narrow, there are few places to install the transmitter of the automatic fire notification equipment, and the number of transmitters is small, so it is difficult to use the transmitter as fire notification equipment. [[ID=3 7]]

[0005] An object of the present invention is to provide a fire notification device provided with a transmitter that is easy to use on the platform of a station.

Means for Solving the Problems

[0006] A fire alarm system in one embodiment of the present invention comprises a fire alarm transmitter installed on a platform door of a station and a display device installed on a platform door of a station, wherein when the transmitter is operated, the display device displays information related to a fire. [Effects of the Invention]

[0007] The present invention makes it possible to provide a fire alarm system equipped with a transmitter that is easy to use on train station platforms. [Brief explanation of the drawing]

[0008] [Figure 1] A top view of a platform with platform screen doors installed according to the embodiment. [Figure 2] Side view of a platform screen door in an embodiment. [Figure 3] Configuration diagram of a fire alarm system in an embodiment. [Figure 4] Front view of the transmitter in the embodiment. [Figure 5] A longitudinal cross-sectional view of the transmitter in the embodiment. [Modes for carrying out the invention]

[0009] Figure 1 shows a top view of platform Sp with platform door 1 of the embodiment installed. In Figure 1, a train Tr is stopped on the track Rw on both sides of platform Sp. Multiple platform doors Hd are installed on the track Rw side of platform Sp. One of the four platform doors Hd corresponding to one train car is platform door 1 of the embodiment, indicated by the diagonal lines. In Figure 1, platform Sp is also provided with stairs St, an elevator El, and a fire hydrant Fh. The fire hydrant Fh is located behind stairs St.

[0010] Figure 2 shows a side view of the platform door 1 in the embodiment. Figure 2 is a side view taken from inside the platform Sp in the direction of the track Rw. In the platform door 1 in Figure 2, two sliding doors 12 are shown between two door pockets 11. When the platform door 1 is opened, the sliding doors 12 are housed in adjacent door pockets 11. A display device 3 is installed in one of the door pockets 11, facing the inside of the platform Sp. The display device 3 is a digital signage using a flat panel display.

[0011] Above the display device 3, a fire alarm transmitter 4 and a handset box 51 are installed facing inward towards the platform Sp. The transmitter 4 and handset box 51, which are relatively thick, are positioned above the housing of the sliding door 12, so as not to obstruct the storage of the sliding door 12 in the door pocket 11. The transmitter 4 is a device for reporting a fire in the event of a fire, and is equipped with a push button 43, which will be described later. The handset box 51 houses the handset 5, which will be described later. When the transmitter 4 is not operated and the fire detector 7 has not detected a fire, advertisements and information about the location of the transmitter 4 are displayed on the display device 3.

[0012] The display device 3 in Figure 2 shows the state in which the transmitter 4 has been operated on another platform door 1. The display device 3 displays information related to the fire. At the very top, it displays information about the fire, stating that a fire has occurred on platform Sp. It also displays information about the evacuation route and the location of the fire hydrant Fh. The display device 3 shows an arrow indicating the evacuation route and that the evacuation route leads to the stairs St 40m away. Below that, it shows an arrow indicating the direction of the fire hydrant Fh and that the fire hydrant Fh is located behind the stairs 30m away. Furthermore, at the very bottom, it shows information about the location of the operated transmitter 4. Specifically, it shows an arrow indicating the direction of the operated transmitter 4 and that the operated transmitter 4 is the 12th door.

[0013] Figure 3 shows a diagram of the fire alarm system configuration in the embodiment. The fire alarm system is installed on platform Sp and in the station building Sa other than platform Sp. The fire alarm system includes a control device 2, a display device 3, a transmitter 4, a handset 5, a detection line 6, a fire detector 7, and a fire alarm receiver 8. The control device 2 has a CPU and a memory device, and generates display information and transmits it to the display device 3 for display. Normally, the control device 2 generates display information such as advertisements and displays it on the display device 3. Although not shown, in this embodiment, in addition to advertisements, information about the location of the transmitter 4 is displayed so that station users can remember the location of the transmitter 4 during normal times. This location information is also generated by the control device 2. Although not shown, the detection line 6 includes three wires: a common line C, a response line A, and a telephone line T.

[0014] As shown in Figure 2, the multiple platform doors 1 installed on platform SP are equipped with a fire alarm display device 3, a transmitter 4, and a handset 5. The handset 5 is installed inside a handset box 51 and can be removed by opening the lid of the handset box 51 and used for communication. Multiple fire detectors 7 are installed on platform SP.

[0015] In addition to the platform Sp, multiple fire detectors 7 are also installed in the station building Sa, which is part of the station facilities. The station office So in station building Sa is equipped with fire detectors 7, a fire alarm receiver 8, and a handset 5. The handset 5 is connected to the fire alarm receiver 8. Furthermore, the fire detectors 7 in station building Sa are connected to the detection wire 6 via jumper wiring, and the detection wire 6 is connected to the fire alarm receiver 8.

[0016] At platform Sp, the detection line 6 is wired to multiple transmitters 4 and fire detectors 7, and is connected to the fire alarm receiver 8 in the station office So. The handset 5 connected to the transmitter 4 at the platform door 1 on platform Sp and the handset 5 connected to the fire alarm receiver 8 in the station office So can communicate using the telephone line T and common line C of the detection line 6 that connects the transmitter 4 and the fire alarm receiver 8.

[0017] When the fire detector 7 detects a fire at the home Sp or the station building Sa, a digital signal is transmitted due to the voltage change between the response line A and the common line C of the detection line 6. This digital signal contains the identification code of the transmitted fire detector 7. As a result, in the station office So, the fire receiver 8 that has received the digital signal can display the occurrence of the fire and which fire detector 7 detected it. The fire occurrence signal transmitted by the transmitter 4 also contains the identification code of the transmitter 4. And when the transmitter 4 is operated at the home door 1, similarly, by receiving the digital signal through the response line A and the common line C of the detection line 6, the fire receiver 8 displays the occurrence of the fire and which transmitter 4 was operated.

[0018] The digital signal through the response line A and the common line C is received not only by the fire receiver 8 but also by the control device 2 via the transmitter 4 at the home door 1. In the control device 2, from the identification code included in the fire occurrence signal, the position of the operated transmitter 4 or the detected fire detector 7 is specified, and a display image of information regarding the fire is generated and sent to the display device 3. And as shown in FIG. 2, the display device 3 displays information regarding the fire. When the transmitter 4 installed at the same home door 1 is operated, it displays that the push button 43 at that location has been pressed.

[0019] As information regarding the fire, in the display device 3 shown in FIG. 2, at the top, it displays "Fire occurred at home" to indicate that a fire has occurred and that the place where the fire occurred is the home Sp shown in FIG. 1. Also, at the bottom, it displays "Operated transmitter → (Door 12)" to indicate the direction and position where the operated transmitter 4 is located. When the fire detector 7 detects a fire, it similarly displays the direction and position where the detected fire detector 7 is located. Also, in the display device 3, as information regarding the fire, it displays information on the evacuation route and the position of the fire hydrant Fh. By performing these displays, the fire site can be quickly identified, and in the case of an operation of the transmitter 4 due to mischief, it is easy to identify the operator by quickly reaching the operated transmitter �.

[0020] In the control device 2, based on the position of the operated transmitter 4 and the detected fire detector 7, a safe evacuation route is calculated and incorporated into an image to be generated, and is displayed on the display device 3. In FIG. 2, it is displayed as "←Evacuation route (climb the stairs 40 m ahead)", and the safe evacuation direction is indicated by an arrow, showing that it is an evacuation route to climb the stairs St 40 m ahead.

[0021] Furthermore, in the control device 2, based on the position of the operated transmitter 4 and the detected fire detector 7, the position of the fire hydrant Fh suitable for use is calculated and incorporated into an image to be generated, and is displayed on the display device 3. In FIG. 2, it is displayed as "Fire hydrant→(behind the stairs 30 m ahead)", and the direction where there is a fire hydrant Fh suitable for use is indicated by an arrow, showing that it is behind the stairs 30 m ahead.

[0022] In the embodiment, the information regarding the fire displayed on the display device 3 is the information on the position of the operated transmitter 4, the occurrence of a fire, the evacuation route, and the position of the fire hydrant Fh as shown in FIG. 2, but it may also include any of these pieces of information. Also, other information regarding the fire may be displayed, or information not related to the fire may be displayed simultaneously with the information regarding the fire.

[0023] Next, the configuration of the transmitter 4 in the embodiment will be described. FIG. 4 is a front view of the transmitter 4 in the embodiment, and FIG. 5 is a longitudinal sectional view of the transmitter 4 in the embodiment. FIG. 5 is a longitudinal sectional view along the dotted line in FIG. 4, but the push button 43 and the switch 44 are shown in a side view. The transmitter 4 shown in FIGS. 4 and 5 is a transmitter with a ring-shaped display lamp that emits light from a light guide provided around it.

[0024] The home door 1 is fixed to the end on the line Rw side of the home Sp, and it is desirable that no force is applied in the direction of the arrow shown in the upper part of FIG. 1 so that the home door 1 does not fall. Therefore, the push button 43 of the transmitter 4 shown in FIGS. 4 and 5 is attached so as to be pushed upward.

[0025] The front panel 41 of the transmitter 4 has a recess 42 near the center, and a push button 43 for upward pressing is provided on the upper surface of the recess 42, with a switch 44 above the push button 43. The transmitter 4 is a transmitter with a ring-shaped indicator light, and a ring-shaped indicator light 45 is provided around the front panel 41. The ring-shaped indicator light 45 has an LED (not shown) and a light guide and emits red light. As shown in Figure 5, the sides and rear of the transmitter 4 are covered with a housing 46. A terminal board 47 is provided at the rear of the transmitter 4, and the sensing wire 6 is connected by jumper wiring. The sensing wire 6 is actually multiple wires: a common wire C, a response wire A, and a telephone wire T. Because the transmitter 4 uses a ring-shaped indicator light 45, the amount of forward protrusion is small. Therefore, when installed on the side of the platform door 1, the amount of protrusion towards the side where station users pass is small, and there is almost no possibility of station users colliding with it.

[0026] The lower part of the recess 42 is an inclined bottom surface 421. As shown in Figure 5, the inclined bottom surface 421 has a shape in which the back side of the bottom surface of the recess 42 is raised, and the inclined bottom surface 421 is marked with an arrow and the words "Push up firmly". The marking on the inclined bottom surface 421 makes it easy to see from the front, and the inclined bottom surface 421 prevents debris from being placed in the recess 42.

[0027] In the event of a fire, station users or others can close the switch 44 by inserting their fingers into the recess 42 and pushing up the push button 43. A digital signal is then generated by a control unit and a communication unit (not shown) and transmitted by a voltage change between the common line C and the response line A. The digital signal is transmitted from the terminal board 47 to the fire alarm receiver 8 and other transmitters 4 via the detection line 6. Digital signals transmitted from other transmitters 4, etc., to the detection line 6 are then transmitted to the control device 2 via the terminal board 47.

[0028] As shown in Figures 4 and 5, the push button 43 in this embodiment is designed to be pushed upward. However, the push button may also be located below the recess 42 and pushed downward, or located to the side of the recess 42 and pressed in. Even if the push button is located below or to the side of the recess 42, no force is applied in the direction of the arrow in Figure 1 when the push button is pressed. Furthermore, the push button may be located on the front, like a normal transmitter, and the transmitter itself may be installed on the top surface of the platform door 1, with the front of the transmitter facing upward. Alternatively, the handset may be installed on the top surface of the platform door 1.

[0029] In this embodiment, the transmitter 4 is made conspicuous by a ring-shaped indicator light 45. However, instead of providing the ring-shaped indicator light 45, the transmitter may be made conspicuous by surrounding it with line tape. Alternatively, the indicator light may be provided separately from the transmitter and located near it. The transmitter may be provided with a cover to prevent accidental operation of the push button. The cover may be provided to cover the entire transmitter, or it may be provided to cover the front surface of the recess 42 of the transmitter 4.

[0030] In this embodiment, the display device 3 and the transmitter 4 are formed separately and attached to the door pocket 11 of the platform door 1. However, the transmitter and the display device may be formed as a single unit and retrofitted to the door pocket of an existing platform door. When the transmitter and handset are installed on the upper surface of the door pocket 11, the mounting portion of the transmitter and the mounting portion of the display device can be made into an L-shaped plate-like body, and the upper part of the plate-like body can be hooked onto the upper surface of the door pocket 11 to attach it to the door pocket 11. Also, although the display device 3, transmitter 4, and handset 5 shown in Figure 2 are installed in the same door pocket 11, they may be installed in different door pockets 11.

[0031] Furthermore, the specific configuration is not limited to the embodiments, and any design changes, etc., that do not depart from the spirit of the present invention are also included. In addition, the above-mentioned modifications can be combined by utilizing each other's technologies, as long as there are no particular contradictions or problems in their purpose and configuration. [Explanation of Symbols]

[0032] Sa Station building, So Station office, Sp Platform, Tr Train, Rw Track, St Stairs, El Elevator, Fh Fire hydrant, Hd Platform screen doors, 1 platform door, 11 door pocket, 12 sliding door, 2. Control device, 3 display device, 4 Transmitter, 41 Front panel, 42 Recess, 421 Slanted bottom surface, 43 Push button, 44 Switch, 45 Ring-shaped indicator light, 46 Housing, 47 Terminal board, 5 Handset, 51 Handset box, 6 sensing wire, 7 fire detector, 8. Fire alarm receiver

Claims

1. It comprises a fire alarm transmitter installed on the platform doors of the station, and a display device installed on the platform doors of the station, A fire alarm system characterized in that, when the transmitter is operated, the display device displays information related to a fire.

2. The fire alarm system according to claim 1, characterized in that the information relating to the fire includes information about the location of the operated transmitter.

3. The fire alarm system according to claim 2, characterized in that the fire information further includes at least one of the following: the occurrence of a fire, an evacuation route, and the location of a fire hydrant.

4. The transmitter and the display device are formed as an integral part of the device. A fire alarm system according to any one of claims 1 to 3, which can be installed on platform screen doors.

5. The fire alarm system according to any one of claims 1 to 3, characterized in that the display device shows the location of the transmitter when the transmitter is not being operated.

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