Ultra-sensitive smoke detector

Abstract

To provide an ultra-high sensitivity smoke detection device which can identify a place (such as a device) where a very small quantity of smoke is generated before fire occurrence, and is excellent in use feeling and operability.SOLUTION: A portable ultra-high sensitivity smoke detection device 61 includes: an ultra-high sensitivity smoke detection device body 63 for detecting generation of a very small quantity of smoke at a place 7 where air cleanliness is secured; a suction member 65 for sucking air being an inspection object in the ultra-high sensitivity smoke detection device body 63; and a piping member 67 for connecting the ultra-high sensitivity smoke detection device body 63 to the suction member 65 so as to allow the suction member 65 to move in parallel with the ultra-high sensitivity smoke detection device 63.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to an ultra-sensitive smoke detector, and more particularly to one that detects even slight amounts of smoke before a fire breaks out. [Background technology]

[0002] BACKGROUND ART Conventionally, a method for detecting and identifying a fire using a smoke detector that detects smoke generated by a fire is known (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 58-195996 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional smoke detectors are unable to detect the minute amounts of smoke that can be a sign of a fire. Even if ultra-high sensitivity smoke detectors detect minute amounts of smoke that are too small to be seen with the naked eye, they are unable to visually identify abnormal equipment that could be a fire hazard. This means that it is impossible to prevent fires, localize and minimize damage, and ensure business continuity.

[0005] An object of the present invention is to provide an ultra-sensitive smoke detection device that can identify the location (device, etc.) where a small amount of smoke is generated before a fire occurs, and that is easy to use and operate. [Means for solving the problem]

[0006] The first invention is an ultra-high sensitivity smoke detector body that detects even the slightest amount of smoke. and a suction member that sucks air to be inspected by the ultra-high sensitivity smoke detector body; and a piping member that connects the ultra-high sensitivity smoke detector body and the suction member so that the suction member moves parallel to the ultra-high sensitivity smoke detector body. The piping member is configured by connecting a plurality of rotary joints to a plurality of rigid tubular bodies or one tubular body, and the suction member is configured to be movable only in the direction of deployment in one predetermined plane. It is an ultra-sensitive smoke detection device.

[0008] The second invention is the first invention The ultra-high sensitivity smoke detection device according to the present invention is configured such that the piping member is folded by changing its position due to the rotation of the multiple tubular bodies at the multiple rotary joints, and when viewed in the folded state from the front to back, the piping member is contained inside the main body of the ultra-high sensitivity smoke detection device.

[0009] The third invention is the first or second invention. The ultra-high sensitivity smoke detection device according to the present invention is an ultra-high sensitivity smoke detection device configured so that the suction member is connected to the piping member via a coupling.

[0010] The fourth invention relates to any one of the first to third inventions. This is an ultra-high sensitivity smoke detection device, in which the ultra-high sensitivity smoke detection device main body and the piping member are placed on a support body, and the support body is provided with a belt so that the support body can be held by the body.

[0011] The fifth invention relates to any one of the first to fourth inventions. This is an ultra-high sensitivity smoke detection device, wherein the ultra-high sensitivity smoke detection device main body is configured to be able to change the detection sensitivity for minute amounts of smoke in the air sucked in by the suction member only under specific circumstances.

[0013] The sixth invention is This ultra-sensitive smoke detection device comprises an ultra-sensitive smoke detection device main body that detects the generation of minute amounts of smoke, an suction member that sucks in the air that is the subject of inspection by the ultra-sensitive smoke detection device main body, and a piping member that connects the ultra-sensitive smoke detection device main body to the suction member so that the suction member, which can change its position and posture with six degrees of freedom when existing alone, can change its position and posture with five or less degrees of freedom relative to the ultra-sensitive smoke detection device main body.

[0014] The seventh invention is the first or sixth invention.The present invention relates to an ultra-high sensitivity smoke detection device, wherein the ultra-high sensitivity smoke detection device main body is configured to detect the generation of minute amounts of smoke in places where air cleanliness is ensured. [Effects of the Invention]

[0015] The present invention has the effect of providing an ultra-sensitive smoke detection device that can identify the location (device, etc.) where a small amount of smoke is generated before a fire occurs, and that is easy to use and operate. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a diagram showing a schematic configuration of a fire monitoring system in which an ultra-high sensitivity smoke detection device according to an embodiment of the present invention is used. [Figure 2] 1 is a diagram showing an example of installation of piping for collecting minute amounts of smoke in a fire monitoring system in which an ultra-high sensitivity smoke detection device according to an embodiment of the present invention is used. [Figure 3] FIG. 10 is a diagram showing another example of installation of piping for collecting trace amounts of smoke in a fire monitoring system in which an ultra-sensitive smoke detection device according to an embodiment of the invention is used. [Figure 4] 1 is a diagram showing a schematic configuration of an ultra-high sensitivity smoke detection device according to an embodiment of the present invention. [Figure 5] 1 is a diagram showing a schematic configuration of an ultra-high sensitivity smoke detection device according to an embodiment of the present invention. [Figure 6] FIG. 2 is a diagram illustrating the operation of the fire monitoring system shown in FIG. [Figure 7] 1 is a perspective view of an ultra-sensitive smoke detector according to an embodiment of the present invention; [Figure 8] 1 is a perspective view of an ultra-sensitive smoke detector according to an embodiment of the present invention; [Figure 9] 9A and 9B are diagrams showing a schematic configuration of a rotor joint constituting a piping member of an ultra-sensitive smoke detector according to an embodiment of the present invention, and FIG. 9B is a view taken along the arrow IXB in FIG. 9A. [Figure 10] 1 is a plan view showing a state in which a piping member is folded in an ultra-high sensitivity smoke detector according to an embodiment of the present invention. FIG. [Figure 11] 11(a) is a view showing a cross section taken along line XIA-XIA in FIG. 10, and (b) is a view showing a modified example of (a). [Figure 12] FIG. 10 is a perspective view of an ultra-sensitive smoke detector according to a first modified example. [Figure 13] FIG. 10 is a perspective view of an ultra-sensitive smoke detector according to a first modified example. [Figure 14] FIG. 10 is a perspective view of an ultra-sensitive smoke detector according to a second modified example. [Figure 15] FIG. 10 is a perspective view of an ultra-sensitive smoke detector according to a second modified example. [Figure 16] FIG. 10 is a perspective view of an ultra-sensitive smoke detector according to a second modified example. DETAILED DESCRIPTION OF THE INVENTION

[0017] An ultra-sensitive smoke detector 61 according to an embodiment of the present invention is used in a fire monitoring system 1, for example, as shown in FIG.

[0018] First, we will explain the fire monitoring system 1. The fire monitoring system 1 is configured to include a first ultra-high sensitivity smoke detection device 3 and a monitoring device 5, as shown in FIG.

[0019] The first ultra-high sensitivity smoke detection device 3 emits a first alarm signal when it detects the generation of a minute amount of smoke invisible to the naked eye in a place where air cleanliness is ensured (for example, a place where air cleanliness is ensured 7 (see Figures 2 and 3)).

[0020] An example of a place 7 where air cleanliness is ensured is a room such as a clean room or a data center. The first ultra-sensitive smoke detector 3 detects minute amounts of smoke present in the air inside the clean room 7 or the like. Note that such minute amounts of smoke are impossible to detect with the naked eye. For example, data centers are required to meet ISO 14644-1 Class 8 cleanliness standards. Semiconductor factories and the like are also required to meet ISO 14644-1 Class 3 to 5 cleanliness standards.

[0021] 4 and 5, the first ultra-sensitive smoke detection device 3 is configured to include a housing 11 in which a laser chamber 9 is provided, a laser light source (laser light oscillator) 13, a suction unit 15 that sucks in air, a photodiode 17, a camera 19, and a control unit 21. A CMOS camera, for example, is used as the camera 19. The laser light source 13, photodiode 17, camera 19, and control unit 21 are also provided in the housing 11. The control unit 21 is configured to include a CPU and memory (not shown).

[0022] In the first ultra-sensitive smoke detection device 3, under the control of the control unit 21, air is sucked in from outside the housing 11 (for example, a clean room) by the suction unit 15 and enters the laser chamber 9. The laser light source 13 emits laser light 23 into the laser chamber 9. If smoke or dust is present in the laser chamber 9, the laser light 23 emitted by the laser light source 13 hits the smoke or dust particles and is scattered.

[0023] The photodiode 17 detects light scattered by smoke or dust particles. The concentration of smoke or dust is detected based on the detection result of the photodiode 17. Note that reference numeral 25 in FIG. 5 denotes a laser light absorbing material (e.g., a prism) that absorbs the laser light 23 emitted by the laser light source 13.

[0024] In addition, in the first ultra-sensitive smoke detection device 3, under the control of the control unit 21, a camera (e.g., a CMOS camera) 19 photographs particles in the laser chamber 9, and it is determined whether the photographed particles are smoke particles or particles other than smoke (e.g., dust). For example, the diameter and color of the smoke particles are measured by the camera 19, and the particle diameter and color are used to determine whether it is smoke or a substance other than smoke (dust and water vapor).

[0025] Then, when the particles photographed by the camera 19 are determined to be smoke particles, and the smoke density exceeds a predetermined threshold, a first communication signal is emitted from a first communication signal generating unit (not shown).

[0026] The sensitivity range (smoke detection range) of the first ultra-high sensitivity smoke detector 3 is 0.001% / m to 20% / m. The sensitivity range of a normal smoke detector is about 10% / m. The first ultra-high sensitivity smoke detector 3 uses, for example, the technology described in U.S. Patent No. 6,184,537. Another example of the first ultra-high sensitivity smoke detector 3 is the "VESDA" from Nippon Dry Chemical Co., Ltd. Here, we will explain the unit of sensitivity range, "% / m." For example, if 100% of the light intensity from a light source is attenuated by 99% at a light receiving element located 1 m away, this is expressed as 1% / m.

[0027] As shown in Fig. 1, the monitoring device 5 is installed in a guard post 27, a control room, or a guard room. Here, the monitoring device 5 is configured as a dedicated PC, and upon receiving a first notification signal from the first ultra-high sensitivity smoke detection device 3, it sends a notification (such as the first notification signal) to the terminal 29 by push notification, indicating that a small amount of smoke has been detected. Note that the monitoring device 5 does not have to be a dedicated PC, and may instead be a general-purpose PC with dedicated software installed.

[0028] The first report signal is sent from the first ultra-high sensitivity smoke detection device 3 to the terminal 29 via the monitoring device 5 over a network 31 such as a LAN, a WAN, Ethernet, or the Internet. The terminal 29 may be, for example, at least one of a general-purpose PC, a first mobile terminal carried by a person in charge of the room 7 where air cleanliness is ensured, and a second mobile terminal (not shown) carried by a monitor 45 (see FIG. 1) of the room 7 where air cleanliness is ensured. A third mobile terminal or the like may also be added to the terminal 29.

[0029] Furthermore, when the first report signal is received, the monitoring device 5 and the terminal 29 output from the output section using sound, light, or video to indicate that a small amount of smoke has been generated in the room 7 where air cleanliness is ensured.

[0030] The first alarm signal is an electrical signal transmitted via network 31, but in addition to this electrical signal, the first alarm signal may also be composed of, for example, light or sound emitted from an output unit provided in first ultra-sensitive smoke detection device 3. In this case, a person near first ultra-sensitive smoke detection device 3 can know that first ultra-sensitive smoke detection device 3 has detected the generation of a small amount of smoke.

[0031] 2 and 3, the fire monitoring system 1 is provided with a pipe 33 for collecting minute amounts of smoke and dust generated in the room 7 where air cleanliness is ensured. The first ultra-sensitive smoke detection device 3 is configured to detect minute amounts of smoke present in the air collected by the pipe 33.

[0032] In the room 7 where air cleanliness is ensured, there are multiple devices 35 installed that may generate smoke due to malfunctions or other defects. Smoke generated by a malfunction may develop into a fire, such as an electrical fire. Although the devices 35 almost never generate smoke, it cannot be said that they will never generate smoke. Here, devices that may generate smoke are referred to as smoke-generating devices 35.

[0033] A plurality of air suction holes 37 are provided in the pipe 33 along the extension direction. Each of the plurality of air suction holes 37 is located near each of the plurality of smoke generation danger devices 35. This allows the small amount of smoke generated from each of the plurality of smoke generation danger devices 35 to be quickly sucked in.

[0034] That is, the air suction hole 37 of the pipe 33 is arranged in a position where the smoke generated from the smoke generation prevention device 35 can be sucked into the pipe 33 as quickly and reliably as possible. For example, if the housing of the smoke generation prevention device 35 is provided with an air exhaust hole for exhausting the air inside the housing, the air suction hole 37 of the pipe 33 is arranged near the air exhaust hole.

[0035] 2 and 3 show computer rooms such as those in data centers, with the white arrows indicating the flow of air from bottom to top to cool the heat generated by equipment 35 in room 7. Although not shown, clean air flows from top to bottom in clean rooms such as those in semiconductor factories. Therefore, it is preferable that air suction hole 37 of pipe 33 be positioned in the direction of the air flow in the room, from the housing or air exhaust hole of smoke-generating equipment 35. In the case of a computer room, equipment 35 is primarily a computer, while in the case of a clean room in a semiconductor factory, equipment 35 is primarily semiconductor manufacturing equipment (cleaning machines, coaters, exposure machines, vacuum equipment such as CVD, annealing equipment, etc.).

[0036] The base end of the pipe 33 is connected to an air suction port 39 (see FIG. 4) provided in the housing 11 of the first ultra-high sensitivity smoke detection device 3. By operating the air suction unit 15 of the first ultra-high sensitivity smoke detection device 3, air is sucked into the pipe 33 through the air suction hole 37 of the pipe 33, and this sucked air passes through the pipe 33 and enters the laser chamber 9. The air that has entered the laser chamber 9 is exhausted to the outside of the housing 11 through an air exhaust port 41 (see FIG. 4) provided in the housing 11.

[0037] 1, the fire monitoring system 1 also includes a second ultra-sensitive smoke detector 61. The second ultra-sensitive smoke detector 61 is portable. The second ultra-sensitive smoke detector 61 is used to identify the source of a small amount of smoke in the room 7 where air cleanliness is ensured when the first ultra-sensitive smoke detector 3 issues a first alarm signal.

[0038] As described above, a plurality of smoke detection devices 35 are installed in room 7 where air cleanliness is ensured. When first ultra-high sensitivity smoke detection device 3 issues a first alarm signal, portable second ultra-high sensitivity smoke detection device 61 is moved as appropriate to identify the smoke detection device 35 that is the source of the smoke from among the plurality of smoke detection devices 35. In more detail, it may be possible to identify which part of the smoke detection device 35 is the source of the smoke.

[0039] To explain further, when the first ultra-high sensitivity smoke detection device 3 emits the first alarm signal, it is known that smoke has been generated in the room 7 where air cleanliness is ensured. However, it is not possible to identify which of the multiple smoke detection devices 35 installed in the room 7 where air cleanliness is ensured has generated the smoke. Therefore, the monitor (on-site person in charge; security guard) 45 uses a portable second ultra-high sensitivity smoke detection device 61 to identify the source of the slight amount of smoke.

[0040] The second ultra-sensitive smoke detector 61 detects the generation of minute amounts of smoke using substantially the same principle as the first ultra-sensitive smoke detector 3. However, the second ultra-sensitive smoke detector 61 does not have the function of determining whether the photographed particles are smoke particles or particles other than smoke (for example, dust). However, the second ultra-sensitive smoke detector 61 may have the function of determining whether the photographed particles are smoke particles or particles other than smoke (for example, dust).

[0041] To explain further, when the first ultra-high sensitivity smoke detection device 3 emits the first notification signal, the first portable terminal notifies the person in charge who is carrying the first portable terminal that a small amount of smoke has been generated in the room 7 where air cleanliness is ensured.

[0042] When the above-mentioned report is transmitted, the person in charge instructs the first mobile terminal and the monitor 45 (see FIG. 1) in the place 7 where the air cleanliness is ensured to identify the source of the slight amount of smoke in the room 7 where the air cleanliness is ensured. This instruction is given via a second mobile terminal (not shown) carried by the monitor 45.

[0043] The responsible person is a person who has authority over the operation of the room 7 where air cleanliness is ensured and the smoke generation alarm device 35 installed in this room 7. For example, the responsible person can stop the operation of the smoke generation alarm device 35 at their discretion. Also, the responsible person is usually one person who lives in a remote location away from the room 7 where air cleanliness is ensured.

[0044] The monitor 45 waits in a room (for example, guard post 27; see Figure 1) near the room 7 where air cleanliness is ensured, and constantly monitors for any abnormalities in the room 7 where air cleanliness is ensured and the smoke generation alarm device 35 installed in this room 7. Multiple people work as monitors 45 in shifts.

[0045] The monitor 45, having received the above instructions, enters the location where the smoke generation was detected (room 7 where air cleanliness is ensured) carrying the second ultra-sensitive smoke detection device 61. The monitor 45 then uses the second ultra-sensitive smoke detection device 61 to check whether or not a small amount of smoke is being generated from each of the multiple smoke generation warning devices 35, and identifies the smoke generation warning device 35 that is the source of the small amount of smoke.

[0046] The second ultra-high sensitivity smoke detection device 61 is configured to emit a second alarm signal when it detects the generation of even a small amount of smoke. The second alarm signal is composed of light, sound, or the like emitted from an output unit provided in the second ultra-high sensitivity smoke detection device 61. The second alarm signal may also be a signal transmitted via the network 31, similar to the first alarm signal.

[0047] The monitor 45, who has perceived the second notification signal (a signal consisting of light, sound, etc.) emitted by the second ultra-high sensitivity smoke detection device 61, uses the second portable terminal to call the first portable terminal (the first portable terminal carried by the person in charge), and then conveys to the person in charge information (type, installation location, smoke concentration, changes in smoke concentration, location where the smoke was collected, etc.) about the smoke generation warning device 35 that is the source of the trace amount of smoke (the smoke generation warning device identified as the smoke source).

[0048] The monitor 45 notifies the person in charge of the source of the slight amount of smoke via the network 31 and a mobile terminal connected to the network 31, and asks for instructions from the person in charge.

[0049] When the monitor 45 notifies the person in charge of the source of a small amount of smoke, the person in charge instructs the monitor 45 on how to deal with the source of a small amount of smoke in the room 7 where air cleanliness is ensured (turning off the smoke alarm device, waiting and seeing, etc.). This instruction is given via the first mobile terminal, the network 31, and the second mobile terminal. When this instruction is given, the monitor 45 executes the above-mentioned method of dealing with the source of the small amount of smoke.

[0050] The monitoring device 5 is configured to record the first and second report signals together with the time at which the signals were received.

[0051] Furthermore, the second ultra-sensitive smoke detection device 61 may also serve as the first ultra-sensitive smoke detection device 3. In other words, instead of using two ultra-sensitive smoke detection devices, the first ultra-sensitive smoke detection device 3 and the second ultra-sensitive smoke detection device 61, one ultra-sensitive smoke detection device may be used as both the first ultra-sensitive smoke detection device 3 and the second ultra-sensitive smoke detection device 61.

[0052] Furthermore, in the fire monitoring system 1, at least one of the first ultra-sensitive smoke detection device 3 and the second ultra-sensitive smoke detection device 61 is configured to be able to distinguish between smoke and dust, as described above. That is, only the first ultra-sensitive smoke detection device 3 is configured to be able to distinguish between smoke and dust. Alternatively, only the second ultra-sensitive smoke detection device 61 is configured to be able to distinguish between smoke and dust. Alternatively, both the first ultra-sensitive smoke detection device 3 and the second ultra-sensitive smoke detection device 61 are configured to be able to distinguish between smoke and dust.

[0053] The first ultra-sensitive smoke detector 3 and the second ultra-sensitive smoke detector 61 emit an alarm signal when smoke is identified, and do not emit an alarm signal when dust is identified. Note that the first ultra-sensitive smoke detector 3 and the second ultra-sensitive smoke detector 61 may be configured to emit an alarm signal (smoke detection alarm signal) when smoke is identified, and to emit an alarm signal (dust detection alarm signal) when dust is identified.

[0054] Here, a fire monitoring method (fire monitoring procedure) performed using the fire monitoring system 1 will be described.

[0055] The fire monitoring method includes a detection stage (smoke detection stage), a reporting stage (responsible person reporting stage), a first instruction stage (first responsible person instruction stage), and an identification stage (smoke source identification stage). The fire monitoring method also includes a notification stage (smoke source notification stage), a second instruction stage (second responsible person instruction stage), and an execution stage (countermeasure execution stage).

[0056] In the detection stage, a first ultra-sensitive smoke detector 3 installed at a predetermined location is used to detect the generation of a small amount of smoke in a room 7 where air cleanliness is ensured.

[0057] In the reporting stage, when a slight amount of smoke is detected in the detection stage, the fact that a slight amount of smoke has been detected is reported to the person in charge of room 7 where air cleanliness is ensured. The above reporting is performed by first ultra-high sensitivity smoke detection device 3 via network 31 and a mobile terminal connected to this network 31.

[0058] More specifically, when the first ultra-sensitive smoke detector 3 detects even a small amount of smoke in the room 7 where air cleanliness is ensured during the detection stage, the first ultra-sensitive smoke detector 3 issues a first notification signal. This notification signal is received by the monitoring device 5 via the network 31.

[0059] The monitoring device 5 sends a message to the first mobile terminal carried by the person in charge via the network 31 that a small amount of smoke has been detected in the room 7 where air cleanliness is ensured. This makes the person in charge aware that a small amount of smoke has been detected in the room 7 where air cleanliness is ensured.

[0060] In the first instruction stage, when the report is transferred in the report transfer stage, the person in charge instructs the monitor 45 in the room 7 where air cleanliness is ensured to identify the source of the slight amount of smoke in the room 7 where air cleanliness is ensured. The above instruction is given via the network 31 and a mobile terminal connected to this network 31.

[0061] To explain further, in the first instruction stage, the person in charge uses the first mobile terminal to send a command to identify the source of a small amount of smoke in room 7, where air cleanliness is ensured, to the second mobile terminal carried by monitor 45 via network 31. As a result, monitor 45 recognizes that a small amount of smoke has been generated in room 7, where air cleanliness is ensured, and that a command has been issued to identify the source of the small amount of smoke.

[0062] In the identification stage, upon receiving instructions in the first instruction stage, the monitor 45 uses a portable second ultra-sensitive smoke detection device 61 to identify the source of the small amount of smoke in the room 7 where air cleanliness is ensured.

[0063] In the notification stage, when a source of a small amount of smoke is identified in the identification stage, monitor 45 notifies the person in charge of the source of the small amount of smoke. This notification is made via network 31 and a mobile terminal connected to this network 31. In the notification stage, for example, monitor 45 calls the first mobile terminal of the person in charge using the second mobile terminal, and notifies the person in charge of the identified source of the small amount of smoke.

[0064] The monitor 45 notifies the person in charge of the source of the slight amount of smoke via the network 31 and a mobile terminal connected to the network 31, and asks for instructions from the person in charge.

[0065] In the second instruction stage, when a notification of a source of a small amount of smoke is received in the notification stage, the person in charge instructs the monitor 45 on how to deal with the generation of a small amount of smoke in the room 7 where air cleanliness is ensured (how to deal with the source of the small amount of smoke). This instruction is given via the network 31 and a mobile terminal connected to this network 31. In the second instruction stage, the person in charge calls the second mobile terminal of the monitor 45 using the first mobile terminal, and tells the monitor 45 how to deal with the room 7 where air cleanliness is ensured.

[0066] In the execution stage, when a response method (countermeasure) is instructed in the second instruction stage, the monitor 45 executes the instructed response method.

[0067] When a slight amount of smoke is detected in the first detection stage, the fact that a slight amount of smoke has been detected may also be transmitted (reported) to the monitor 45 in the room 7 where air cleanliness is ensured in the reporting stage. The above-mentioned transmission (reporting) is also performed by the first ultra-high sensitivity smoke detection device 3 via the network 31 and a mobile terminal connected to this network 31.

[0068] Here, the alarm flow in the fire monitoring system 1 shown in FIG. 1 will be described with reference to FIG.

[0069] In step S61, when a fire alarm is issued by the ultra-high sensitivity smoke detector, a beep is emitted, the LED 59 is illuminated, and if a rotating light (not shown) is provided, the rotating light is turned on.

[0070] In step S63, the dedicated PC issues an alarm via the dedicated network. This alarm is an audio alert, and the location of the fire alarm is displayed on the dedicated PC's screen. The concentration of smoke detected by the ultra-high sensitivity smoke detector, along with a trend graph, is also displayed on the screen.

[0071] In step S65, a notification is sent by email, i.e., a "fire" notification is sent from the dedicated PC to the set email address.

[0072] In step S67, the area where the fire has occurred is confirmed on the dedicated PC, and the on-site personnel and security guards rush to the scene of the fire with handy type ultra-high sensitivity smoke detector 61 in hand.

[0073] In step S69, the precise location of the fire (the location where the slightest amount of smoke is coming from) is identified using the handheld ultra-sensitive smoke detector 61, and a response to the fire is carried out. Also, the person in charge (supervisor) who has received the "fire" notification by email gives instructions to the on-site person in charge and security guards.

[0074] In step S71, after the fire has been extinguished, remote control is performed using a dedicated PC.

[0075] The fire monitoring system 1 is configured to include a first ultra-sensitive smoke detection device 3 and a monitoring device 5. The first ultra-sensitive smoke detection device 3 emits a first alarm signal when it detects the generation of a small amount of smoke in a room 7 where air cleanliness is ensured. When the monitoring device 5 receives the first alarm signal from the first ultra-sensitive smoke detection device 3, it sends a notification to a terminal (which may be a mobile terminal) 29 that a small amount of smoke has been generated.

[0076] This allows, for example, a person in charge of the room 7 where air cleanliness is ensured to carry a mobile device and be notified without delay, wherever they are, that a small amount of smoke has been generated in the room 7 where air cleanliness is ensured. The detection of the generation of invisible smoke alone allows appropriate action to be taken immediately under the direction of the person in charge who is well versed in the room 7 where air cleanliness is ensured and how to deal with it. This makes it possible to prevent serious accidents from occurring in the room 7 where air cleanliness is ensured.

[0077] In addition, in the fire monitoring system 1, a pipe 33 is provided in the room 7 where air cleanliness is ensured to collect trace amounts of smoke, and the first ultra-high sensitivity smoke detection device 3 is configured to detect trace amounts of smoke present in the air collected by the pipe 33.

[0078] As a result, even if the room 7 in which air cleanliness is ensured is large, minute amounts of smoke can be sent to the first ultra-high sensitivity smoke detector 3 without omission and without delay from the entire large room 7, and serious accidents in the large room 7 in which air cleanliness is ensured can be prevented before they occur.

[0079] The fire monitoring system 1 also includes a portable second ultra-high sensitivity smoke detection device 61 for identifying the source of a small amount of smoke in a room 7 where air cleanliness is ensured when the first ultra-high sensitivity smoke detection device 3 emits a first alarm signal.

[0080] This allows the portable second ultra-sensitive smoke detection device 61 to be moved and the source of even the smallest amount of smoke to be identified with certainty, thereby more reliably preventing serious accidents from occurring in the room 7 where air cleanliness is ensured.

[0081] Furthermore, if the portable second ultra-sensitive smoke detector 61 is not provided, for example, the generation of a small amount of smoke will be detected only by the display on the monitoring device 5 installed in the security guard room. This may result in the inability to quickly identify the source of the small amount of smoke, which may delay the implementation of countermeasures.

[0082] In addition, in the fire monitoring system 1, at least one of the first ultra-high sensitivity smoke detector 3 and the second ultra-high sensitivity smoke detector 61 is configured to be able to distinguish between smoke and dust. This means that an alarm signal is emitted only when a trace amount of smoke is generated, thereby reducing the generation of unnecessary alarm signals. Note that the ultra-high sensitivity smoke detectors 3 and 61 may be configured to emit a different type of alarm signal when they detect the generation of a trace amount of dust than when they detect the generation of a trace amount of smoke.

[0083] The fire monitoring method also includes a detection stage, a reporting stage, a first instruction stage, a specification stage, a notification stage, a second instruction stage, and an execution stage. This allows appropriate action to be taken quickly at the instruction of a person in charge when a small amount of smoke is generated in a room 7 where air cleanliness is ensured. This minimizes damage to the smoke generation alarm device 35 and other devices installed in the room 7 where air cleanliness is ensured, and prevents serious accidents from occurring in the room 7 where air cleanliness is ensured.

[0084] In addition, in the fire monitoring method, when a slight amount of smoke is detected in the first detection stage, the fact that a slight amount of smoke has been detected is transmitted not only to the person in charge of the room 7 where air cleanliness is ensured but also to the monitor 45.

[0085] This allows ample time to prepare for identifying the source of a small amount of smoke using the portable second ultra-sensitive smoke detection device 61, making it possible to identify the source of a small amount of smoke more quickly.

[0086] In addition, in the fire monitoring method, the report transfer stage, the first instruction stage, the notification stage, and the second instruction stage are carried out via network 31 and a mobile terminal via network 31, but they may also be carried out via a public line network and a public line mobile terminal.

[0087] Next, the second ultra-sensitive smoke detector (ultra-sensitive smoke detector) 61 will be described with reference to FIGS.

[0088] For ease of explanation, a predetermined direction in space is referred to as the left-right direction, a predetermined direction perpendicular to the left-right direction is referred to as the front-rear direction, and a direction perpendicular to both the left-right direction and the front-rear direction is referred to as the up-down direction. Furthermore, axes that are perpendicular to each other in three-dimensional space are referred to as the X-axis, Y-axis, and Z-axis, and the axis that rotates around the X-axis is referred to as the A-axis, the axis that rotates around the Y-axis is referred to as the B-axis, and the axis that rotates around the Z-axis is referred to as the C-axis. Furthermore, the extension direction of the X-axis is the left-right direction, the extension direction of the Y-axis is referred to as the front-rear direction, and the extension direction of the Z-axis is referred to as the up-down direction.

[0089] The ultra-sensitive smoke detector 61 comprises an ultra-sensitive smoke detector main body 63, a suction member (sample tube; nozzle) 65, and a piping member 67. The ultra-sensitive smoke detector main body 63 detects the generation of minute amounts of smoke in a location 7 where air cleanliness is ensured. The suction member 65 sucks in the air to be inspected by the ultra-sensitive smoke detector main body 63.

[0090] The piping member 67 connects the ultra-high sensitivity smoke detector main body 63 and the suction member 65 so that the suction member 65 moves only parallel to the ultra-high sensitivity smoke detector main body 63 within a predetermined range of the three-dimensional space, maintaining a constant posture without changing its own posture.

[0091] Suction member 65 is formed, for example, in a tubular (cylindrical) shape, and a suction hole 69 is provided in the flesh of suction member 65 to allow air to enter from the outside of suction member 65 to the inside. Suction hole 69 is formed as a through-hole connecting the outside and the inside of suction member 65. A piping member 67 extends from ultra-high sensitivity smoke detector main body 63, and suction member 65 is installed, for example, at the tip of piping member 67.

[0092] When ultra-sensitive smoke detector main body 63 is operated (when suction unit 15 shown in FIG. 4 and the like are operated), air is sucked in through suction member 65, and this sucked air passes through the inside of suction member 65 and the inside of piping member 67 and reaches ultra-sensitive smoke detector main body 63. The air sucked in by suction member 65 is then inspected by ultra-sensitive smoke detector main body 63, and it is detected whether or not the sucked air contains a trace amount of smoke.

[0093] Piping member 67 is configured by connecting (for example, connected in series) a plurality of rotary joints 71 and a plurality of tubular (cylindrical) bodies 73 having a rigidity that can be regarded as rigid bodies. Suction member 65 is configured so that it can move only in the direction of deployment of one predetermined plane relative to ultra-high sensitivity smoke detector main body 63 within a predetermined range in three-dimensional space.

[0094] In the embodiment shown in Figure 7, the predetermined plane is a plane perpendicular to the Y axis, and the suction member 65 moves only in the deployment direction of the XZ plane relative to the ultra-sensitive smoke detector main body 63.

[0095] As shown in FIG. 9, the rotary joint 71 is configured to include a cylindrical first joint component member 75 and a cylindrical second joint component member 77. The central axis C1 of the cylinder of the first joint component member 75 is linear (I-shaped). The central axes C2, C3 of the cylinder of the second joint component member 77 are L-shaped. A pipe fitting 91 (which may be a tubular body 73) is connected to one opening of the cylinder of the first joint component member 75. One opening of the opening of the cylinder of the second joint component member 77 is connected to the other opening of the cylinder of the first joint component member 75. The tubular body 73 (which may be a pipe fitting 91) is connected to the other opening of the cylinder of the second joint component member 77.

[0096] The first central axis C1 (second central axis C2) passes through the center of one opening of the first joint component member 75, the center of the other opening, and the center of one opening of the second joint component member 77. The third central axis C3 is perpendicular to the second central axis C2 (first central axis C1) and passes through the center of the other opening of the cylinder of the second joint component member 77.

[0097] The second joint component 77 is installed on the first joint component 75 so that one central axis C2 of the "L" shape coincides with the central axis C1 of the first joint component 75. In this state, the second joint component 77 turns (rotates) relative to the first joint component 75 around the central axis C1 of the first joint component 75 (see the two-dot chain line in Figure 9(b)).

[0098] That is, the other opening of the second joint component member 77 and the tubular body 73 connected to this opening rotate about the central axis C1 of the first joint component member 75. Naturally, the rotary joint 71 is airtight. That is, air that enters the first joint component member 75 from one opening of the first joint component member 75 enters the rotary joint 71. The air that enters the rotary joint 71 reaches the other opening of the second joint component member 77 without leaking outside the rotary joint 71.

[0099] The piping member 67 is configured to be folded by changing its position due to the rotation of the multiple tubular bodies 73 at the multiple rotary joints 71. When viewed from the front to back in this folded state, the piping member 67 is housed inside the ultra-high sensitivity smoke detector main body 63, as shown in Figure 11(a). Note that while all of the tubular bodies 73 are folded while extending in the left-right direction in Figure 11(a), the tubular bodies 73 may be folded while extending slightly obliquely relative to the left-right direction, as shown in Figure 11(b).

[0100] As shown in FIGS. 7 and 8, the suction member 65 is connected to the piping member 67 via a coupling (coupler joint; quick joint) 79.

[0101] Furthermore, the ultra-high sensitivity smoke detector 61 is placed on a mounting body 81, which is provided with a belt 83. More specifically, the mounting body 81 mounts and houses the ultra-high sensitivity smoke detector main body 63 and the piping member 67. The belt 83 allows the mounting body to be held by the body.

[0102] The mounting body 81 and the belt 83 form something similar to a stand. The folded piping member 67 is housed in the mounting body 81 together with the ultra-high sensitivity smoke detector main body 63, as shown in Figures 10 and 11 .

[0103] The ultra-high sensitivity smoke detector main body 63 is configured so that the threshold for detecting minute amounts of smoke in the air sucked in by the suction member 65 can be changed only under specific circumstances (specific conditions). For example, the threshold for detecting minute amounts of smoke in the air can be changed by changing the software. The software can be changed using a PC or a dedicated terminal with dedicated software installed. Furthermore, the threshold for detecting minute amounts of smoke in the air can be changed by entering a password that is preset in the ultra-high sensitivity smoke detector main body 63 into the ultra-high sensitivity smoke detector main body 63. The password is known only to maintenance personnel. An example of the maintenance personnel could be the person in charge of the location 7 where air cleanliness is ensured. For this reason, during the identification stage of the fire monitoring method, the detection sensitivity of the ultra-high sensitivity smoke detector main body 63 is not changed every time.

[0104] The ultra-sensitive smoke detector 61 and the like will now be described in more detail. The ultra-sensitive smoke detector main body 63 is formed in a rectangular parallelepiped shape. The dimension of the ultra-sensitive smoke detector main body 63 in the front-to-rear direction is greater than the dimension of the ultra-sensitive smoke detector main body 63 in the up-to-down direction. The dimension of the ultra-sensitive smoke detector main body 63 in the left-to-right direction is greater than the dimension of the ultra-sensitive smoke detector main body 63 in the front-to-rear direction.

[0105] The suction member 65 is configured to include a suction member main body 85, an elongated first cylindrical member 87, an elongated second cylindrical member 89, a coupling (coupling joint) 79, and a piping joint 91. The suction member main body 85 is formed in the shape of a short cylinder with a closed tip. A plurality of suction holes 69 are provided, and are arranged at predetermined intervals along the generatrix of the suction member main body 85.

[0106] A first cylindrical member 87 is connected to the base end of the suction member main body 85. The base end of the first cylindrical member 87 is connected to the tip end of the second cylindrical member 89 via a coupling 79 and a piping joint 91 such as an elbow. The base end of the second cylindrical member 89 is connected to the tip end of the piping member 67 via the coupling 79. The longitudinal direction of the first cylindrical member 87 is perpendicular to the longitudinal direction of the second cylindrical member 89.

[0107] The piping member 67 is configured to include a plurality of rotary joints 71 (71A, 71B, 71C, 71D), a plurality of tubular bodies 73 (73A, 73B, 73C), and piping couplings 91 (91A, 91B, 91C, 91D). In Fig. 10, reference symbol 91A denotes a long nipple, reference symbol 91B denotes a socket, reference symbol 91C denotes an elbow, and reference symbol 91D denotes a nipple.

[0108] An air suction port 39 is provided at the left end of the front surface of ultra-high sensitivity smoke detector body 63. Rotary joint 71A is connected to air suction port 39 via long nipple 91A, socket 91B, and nipple 91D.

[0109] Long nipple 91A and socket 91B protrude forward from ultra-high sensitivity smoke detector main body 63. Tubular body 73A extends from rotary joint 71A. The extension direction (longitudinal direction) of tubular body 73A is perpendicular to the protrusion direction of long nipple 91A and socket 91B. Tubular body 73A rotates relative to ultra-high sensitivity smoke detector main body 63 around the central axis of rotary joint 71A (central axis extending in the extension direction of the Y-axis; not shown in FIG. 7) and the central axis of nipple 91D.

[0110] The tip of tubular body 73A is connected to rotary joint 71B via elbow 91C and long nipple 91B. Tubular body 73B extends from rotary joint 71B. The extension direction (longitudinal direction) of tubular body 73B is perpendicular to the extension direction of the central axis of long nipple 91A. Tubular body 73B rotates relative to ultra-high sensitivity smoke detector main body 63 (tubular body 73A) around the central axis of rotary joint 71B (central axis extending in the extension direction of the Y-axis; not shown in FIG. 7) and the central axis of long nipple 91B.

[0111] A rotary joint 71C is connected to the tip of the tubular body 73B via an elbow 91C and a long nipple 91B. The tubular body 73C extends from the rotary joint 71C. The extension direction (longitudinal direction) of the tubular body 73C is perpendicular to the extension direction of the central axis of the socket 91B. The tubular body 73C rotates relative to the ultra-high sensitivity smoke detector main body 63 (tubular body 73B) around the central axis of the rotary joint 71C (central axis extending in the extension direction of the Y-axis; not shown in FIG. 7) and the central axis of the long nipple 91B.

[0112] A rotary joint 71D is connected to the tip of tubular body 73C via an elbow 91C and a nipple 91D. A second cylindrical member 89 of suction member 65 is connected to rotary joint 71D via a coupling 79. Second cylindrical member 89 rotates relative to ultrahigh sensitivity smoke detector main body 63 (tubular body 73C) around the central axis of rotary joint 71D (a central axis extending in the extension direction of the Y-axis; not shown in FIG. 7) and the central axis of nipple 91D.

[0113] With the piping member 67 configured as described above, the suction member main body 85 and the first cylindrical member 87 move parallel to the ultra-high sensitivity smoke detection device main body 63 while maintaining the state in which their extension direction (longitudinal direction) is in the front-to-rear direction. When the folded piping member 67 is viewed from above and below, as shown in Fig. 10, the piping member 67 has a rectangular spiral shape.

[0114] In addition, in the ultra-high sensitivity smoke detection device 61 shown in Figure 7 etc., if the suction member main body 85 moves in the parallel direction as described above, the elbow 91C may be changed to a rotary joint 71, or the rotary joint 71 may be changed to an elbow 91C.

[0115] Mounting body 81 is formed in a rectangular box shape. The depth dimension of the inner space of mounting body 81 is smaller than the vertical dimension of ultra-high sensitivity smoke detector main body 63, but the depth dimension of mounting body 81 may be equal to or larger than the vertical dimension of ultra-high sensitivity smoke detector main body 63.

[0116] The front-to-rear dimension of the inner space of the mounting body 81 is larger than the front-to-rear dimension of the ultra-high sensitivity smoke detection device main body 63. The left-to-right dimension of the inner space of the mounting body 81 is slightly larger than the left-to-right dimension of the ultra-high sensitivity smoke detection device main body 63. When the ultra-high sensitivity smoke detection device main body 63 is placed on the mounting body 81, the ultra-high sensitivity smoke detection device main body 63 is located at the rear of the inner space of the mounting body 81.

[0117] The folded piping member 67 is located at the front side of the internal space of the mounting body 81, and is housed within the internal space of the mounting body 81 when viewed in the up-down direction (see FIGS. 10 and 11). Note that the ultra-high sensitivity smoke detector main body 63 in the internal space of the mounting body 81 may be integrated with a battery that drives the ultra-high sensitivity smoke detector 63.

[0118] The belt 83 is formed in a flexible, elongated band shape. One longitudinal end of the belt 83 is joined to the left side plate of the mounting body 81. The other longitudinal end of the belt 83 is joined to the right side plate of the mounting body 81. The pair of joining portions of the belt 83 and the mounting body 81 are located slightly forward of the centers of the side plates in the front-to-rear direction.

[0119] The belt 83 is placed around the neck and the rear side plate of the support body 81 is placed against the abdomen, so that the belt 83 and the support body 81 are held by the body.

[0120] Next, the use of the ultra-sensitive smoke detector 61 will be described.

[0121] In the initial state, the suction member 65 is detached from the piping member 67, the piping member 67 is folded, and the ultra-high sensitivity smoke detector main body 63 and the piping member 67 in an inoperative state are placed and housed on the mounting body 81.

[0122] In the above initial state, a small amount of smoke is detected by the first ultra-sensitive smoke detector 3. Then, the maintenance person connects the suction member 65 to the piping member 67, holds the ultra-sensitive smoke detector 61 to the mounting body 81 on which the ultra-sensitive smoke detector main body 63 and the piping member 67 are placed, and uses the belt 83 to hold the ultra-sensitive smoke detector 61 to their body, and enters the room 7 where the air cleanliness is ensured.

[0123] Next, the ultra-sensitive smoke detector 61 is operated, and the piping member 67 is extended as needed while it is moved around the room 7 where air cleanliness is ensured to identify the location where the slightest amount of smoke is coming from. Also, the suction member main body 85 is moved close to the top, side, bottom, and interior of each device in the section where the slightest amount of smoke was detected by the ultra-sensitive smoke detector 3, to identify the location where the slight amount of smoke is coming from.

[0124] The ultra-sensitive smoke detector 61 is configured to be portable and includes an ultra-sensitive smoke detector main body 63, a suction member 65 that sucks in the air to be inspected by the ultra-sensitive smoke detector main body 63, and a piping member 67. In the ultra-sensitive smoke detector 61, the piping member 67 is extendable. The piping member 67 connects the ultra-sensitive smoke detector main body 63 and the suction member 65 so that the suction member 65 can move parallel to the ultra-sensitive smoke detector main body 63.

[0125] This allows ultra-sensitive smoke detector 61 to be moved appropriately to detect even minute amounts of smoke, making it possible to identify the location (device, etc.) where the slight amount of smoke was generated before a fire broke out. Also, because suction member 65 moves parallel to ultra-sensitive smoke detector main body 63, the position of suction member 65 can be easily and stably changed, resulting in ultra-sensitive smoke detector 61 with good usability and operability.

[0126] Furthermore, even if a small amount of smoke is generated in a location 7 where air cleanliness is ensured, it is possible to prevent a serious accident from occurring. In other words, fires can be prevented, damage can be localized and minimized, and business can continue.

[0127] Furthermore, in ultra-high sensitivity smoke detector 61, piping member 67 is configured by connecting multiple rotary joints 71 and multiple rigid tubular bodies 73, and suction member 65 is configured to be able to move only in the direction of deployment in one predetermined plane. This also improves the usability and operability of ultra-high sensitivity smoke detector 61.

[0128] Furthermore, in ultra-sensitive smoke detection device 61, suction member 65 can only move in the direction of deployment on one plane, which limits the movement and change of posture of suction member 65. This reduces the risk of suction member 65 or piping member 67 accidentally hitting equipment or the like installed in place 7 where air cleanliness is ensured.

[0129] Furthermore, in the ultra-high sensitivity smoke detector 61, the piping member 67 is configured to be folded by changing its position due to the rotation of the tubular body 73 at the rotary joint 71. When viewed from the front to back in this folded state, the piping member 67 is housed inside the ultra-high sensitivity smoke detector main body 63.

[0130] This allows the piping member 67 to be folded when carrying, making the ultra-sensitive smoke detector 61 easier to move, and improving the usability of the ultra-sensitive smoke detector 61.

[0131] Furthermore, in the ultra-sensitive smoke detection device 61, the suction member 65 is configured to be connected to and detached from the piping member 67 via a coupling 79. This makes it easy to move the ultra-sensitive smoke detection device 61 by removing the suction member 65 and folding the piping member 67 when carrying it, even if the suction member 65 is longer than the piping member 67. Furthermore, by making the suction member 65 longer, the suction member 65 can be inserted into gaps in devices (such as the smoke generation detection device 35) installed in a location 7 where air cleanliness is ensured, thereby more accurately identifying the source of even small amounts of smoke.

[0132] Furthermore, ultra-sensitive smoke detector 61 is housed in a device similar to a stand consisting of a mounting body 81 and a belt 83. This allows mounting body 81, on which ultra-sensitive smoke detector main body 63 and piping member 67 are mounted, to be held by the user's body via belt 83, allowing for smooth movement while detecting even minute amounts of smoke. This also allows for quick identification of devices (such as smoke generation warning device 35) that are the source of minute amounts of smoke.

[0133] Furthermore, the ultra-high sensitivity smoke detector 61 does not have a switchable system that allows anyone to easily change the detection sensitivity for detecting minute amounts of smoke, but rather has a fixed detection sensitivity. The detection sensitivity can be changed only under specific circumstances (for example, by software settings by maintenance personnel). This prevents users from making incorrect settings when handling the actual ultra-high sensitivity smoke detector 61 to detect minute amounts of smoke.

[0134] Next, an ultra-sensitive smoke detector 61a according to a first modified example will be described with reference to FIGS.

[0135] Ultra-sensitive smoke detector 61a differs from ultra-sensitive smoke detector 61 shown in Figure 7 etc. in that the configuration of piping member 67 is simplified. In other respects, it is configured similarly to ultra-sensitive smoke detector 61 shown in Figure 7 etc. Note that in ultra-sensitive smoke detector 61a as well, suction member main body 85 and first cylindrical member 87 move parallel to ultra-sensitive smoke detector main body 63 while maintaining a state in which their extension direction (longitudinal direction) is in the front-to-rear direction.

[0136] More specifically, the piping member 67 of the ultra-high sensitivity smoke detection device 61a is configured to include a plurality of rotary joints 71 (71A, 71B), one tubular body 73 (73A), and a piping fitting 91. In Fig. 12 and other figures, reference symbol 91A denotes a long nipple, reference symbol 91B denotes a socket, and reference symbol 91C denotes an elbow.

[0137] The rotary joint 71A is connected to the air suction port 39 via a long nipple 91A and a socket 91B. The long nipple 91A and the socket 91B protrude forward from the ultra-high sensitivity smoke detector main body 63. A tubular body 73A extends from the rotary joint 71A. The extension direction (longitudinal direction) of the tubular body 73A is perpendicular to the protrusion direction of the long nipple 91A and the socket 91B. The tubular body 73A rotates relative to the ultra-high sensitivity smoke detector main body 63 around the central axis of the rotary joint 71A (the central axis extending in the extension direction of the Y-axis; not shown in FIG. 7).

[0138] A rotary joint 71B is connected to the tip of the tubular body 73A via an elbow 91C. A second cylindrical member 89 of the suction member 65 is connected to the rotary joint 71B via a coupling 79.

[0139] Next, an ultra-sensitive smoke detector 61b according to a second modified example will be described with reference to FIGS.

[0140] In the second modified ultra-sensitive smoke detection device 61b, a piping member 67 is configured to include a plurality of tubular bodies 73 (73A, 73B, 73C, 73D), a plurality of couplings 79, and a plurality of piping joints 91. This is what makes it different from the ultra-sensitive smoke detection device 61 shown in Figure 7 etc., but in other respects it is configured in the same way as the ultra-sensitive smoke detection device 61 shown in Figure 7 etc.

[0141] That is, the piping member 67 of the ultra-high sensitivity smoke detection device 61b is configured by connecting (for example, connected in series) multiple couplings 79 to multiple tubular bodies 73 (73A, 73B, 73C, 73D) that have rigidity that can be considered as rigid bodies.

[0142] Then, the ultra-high sensitivity smoke detector main body 63 and the suction member 65 are connected so that the position and posture of the suction member 65 relative to the ultra-high sensitivity smoke detector main body 63 are fixed.

[0143] In addition, the ultra-high sensitivity smoke detector 61b is configured so that the position of the suction member 65 relative to the ultra-high sensitivity smoke detector main body 63 can be changed by changing the number of tubular bodies 73, etc. The lengths of the multiple tubular bodies 73 are different from one another so that the position of the suction member 65 relative to the ultra-high sensitivity smoke detector main body 63 (the length of the piping member 67) can be changed in more ways.

[0144] The mounting body 81 used in the ultra-sensitive smoke detectors 61a and 61b does not accommodate the piping member 67. Therefore, the front-to-rear dimension of the inner space of the mounting body 81 is slightly larger than the front-to-rear dimension of the ultra-sensitive smoke detector main body 63. The left-to-right dimension of the inner space of the mounting body 81 is slightly larger than the left-to-right dimension of the ultra-sensitive smoke detector main body 63. A through-hole is provided in the side wall of the mounting body 81, through which the piping member 67 passes. Alternatively, the belt 83 may be directly attached to the ultra-sensitive smoke detector main body 63 without using the mounting body 81.

[0145] In the ultra-high sensitivity smoke detector 61b, the piping member 67 is configured by connecting a plurality of couplings 79 to a plurality of rigid tubular bodies 73. This allows the suction member 65 to extend over a wider range. That is, by adding couplings 79 and tubular bodies 73, the extension length of the piping member 67 from the ultra-high sensitivity smoke detector main body 63 can be increased.

[0146] In ultra-high sensitivity smoke detector 61b, piping member 67 may be configured to include rotary joint 71. For example, at least one of two elbows 91C shown in FIG.

[0147] In three dimensions, the position of an object (an object having a structure that can be considered to be a rigid body; for example, suction member 65) has three degrees of freedom: one degree of freedom in the X-axis direction, one degree of freedom in the Y-axis direction, and one degree of freedom in the Z-axis direction. Furthermore, the posture of the object has three degrees of freedom: one degree of freedom in the A-axis direction, one degree of freedom in the B-axis direction, and one degree of freedom in the C-axis direction. In other words, the object has six degrees of freedom in three-dimensional space. An object having a structure that can be considered to be a rigid body has a degree of rigidity that prevents it from undergoing very slight elastic deformation, so slight that it is not noticeable to the naked eye, even when a force is applied by a person's bare hand.

[0148] Therefore, the above-mentioned ultra-sensitive smoke detection devices 61, 61a, 61b may be understood as an ultra-sensitive smoke detection device having an ultra-sensitive smoke detection device main body that detects the generation of trace amounts of smoke in places where air cleanliness is ensured, an suction member that sucks in the air that is the subject of inspection by the ultra-sensitive smoke detection device main body, and a piping member that connects the ultra-sensitive smoke detection device main body to the suction member so that the suction member, which can change its position and posture with six degrees of freedom when existing alone, can change its position and posture with five or less degrees of freedom relative to the ultra-sensitive smoke detection device main body within a predetermined range in three-dimensional space.

[0149] Although the present embodiment has been described above, the present embodiment is not limited to this, and various modifications are possible within the scope of the gist of the present embodiment. [Explanation of symbols]

[0150] 7. Places where air cleanliness is ensured 61 Ultra-sensitive smoke detector 63 Ultra-high sensitivity smoke detector main unit 65 Suction member 67 Piping components 71 Rotary joint 73 Tubular body 79 Coupling 81 Mounting body 83 Belt

Claims

1. The ultra-sensitive smoke detector itself detects even the smallest amounts of smoke, a suction member that sucks in air that is the object of inspection by the ultra-high sensitivity smoke detector body; a piping member connecting the ultra-high sensitivity smoke detector body and the suction member so that the suction member moves parallel to the ultra-high sensitivity smoke detector body; The piping member is configured by connecting a plurality of rotary joints to a single or a plurality of rigid tubular bodies, and the suction member is configured to be movable only in the direction of deployment in a single predetermined plane.

2. 2. The ultra-high sensitivity smoke detection device of claim 1, wherein the piping member is configured to be folded by changing the position of the tubular bodies by rotating them at the rotary joints, and when viewed in the folded state from the front to the back, the piping member is contained inside the ultra-high sensitivity smoke detection device main body.

3. 3. The ultra-sensitive smoke detector according to claim 1, wherein the suction member is connected to the piping member via a coupling.

4. An ultra-high sensitivity smoke detection device as described in any one of claims 1 to 3, wherein the ultra-high sensitivity smoke detection device main body and the piping member are placed on a support body, and the support body is provided with a belt so that the support body can be held by the body.

5. An ultra-high sensitivity smoke detection device as described in any one of claims 1 to 4, wherein the ultra-high sensitivity smoke detection device main body is configured to be able to change the detection sensitivity of trace amounts of smoke in the air sucked in by the suction member only under specific circumstances.

6. The ultra-sensitive smoke detector itself detects even the smallest amounts of smoke, a suction member that sucks in air that is the object of inspection by the ultra-high sensitivity smoke detector body; a piping member connecting the ultra-high sensitivity smoke detector main body and the suction member so that the suction member, which can change its position and attitude with six degrees of freedom when it exists alone, can change its position and attitude with five or less degrees of freedom relative to the ultra-high sensitivity smoke detector main body; An ultra-sensitive smoke detection device.

7. 7. The ultra-high sensitivity smoke detector according to claim 1, wherein the ultra-high sensitivity smoke detector main body is configured to detect the generation of minute amounts of smoke in a place where air cleanliness is ensured.

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