JP2017134790A - Disaster prevention system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disaster prevention system that integrates functions to detect fire, intrusion, water leakage, etc. with one detecting optical fiber cable and facilitates laying work of wiring, etc. into a building structure, which can be simplified, made smaller, and saved in space, and which transfers detection information to ensure that appropriate measures are promptly taken.SOLUTION: A disaster prevention system includes at least one distributed detecting optical fiber cable 2 laid at a predetermined place 1 to monitor, and a disaster prevention receiver 5 having a detection part 4 to at least detect a temperature indicating a fire and transmit an abnormality signal. The disaster prevention receiver 5 includes: an alarm generation part 6 to receive the abnormality signal transmitted from the detection part 4 and generate an alarm; a display 7 to display an abnormality content and an abnormality occurrence place; an internal transfer part 10 to transfer information to a fire extinguishing system 8 monitoring the abnormality content and the abnormality occurrence place and installed at a predetermined place 1, a monitoring camera security system 9, etc.; and an external transfer part 10 to transfer the abnormality content and the abnormality occurrence place to the outside.SELECTED DRAWING: Figure 1

Description

  The present invention detects fires, intrusions, water leaks, etc. in buildings such as buildings, houses, factories, smart houses, data centers, etc., and issues alarms, as well as fire extinguishing systems and security systems installed in buildings and the outside. It relates to disaster prevention systems to be transferred.

  As a means of detecting fires, intrusions, water leaks, etc. in buildings, houses, factories, smart houses, data centers, etc., for example, when detecting fires, the fire is detected by smoke detectors or heat detectors ( For example, refer to Patent Documents 1 and 2.) In addition, intrusion detection, an illegal intrusion is detected by an infrared beam detector or a human sensor (for example, refer to Patent Document 3), and also for water leakage detection. In this case, a pair of detection electrodes is arranged, and there is a detection unit that detects water leakage when the pair of detection electrodes are short-circuited by being immersed in water leakage (see, for example, Patent Document 4).

  These detection means are in charge of disaster prevention using separate devices, and since there is no common configuration, the device becomes complicated to integrate the functions to detect fire, intrusion, water leakage, etc. From the point of view, there is no system that integrates these functions and transfers detection information.

Japanese Patent Laid-Open No. 59-1321994 JP 2002-133550 A JP 2006-99501 A JP 2009-175811 A

  As described above, conventionally, there has been no system related to detection and detection information notification integrated with functions for detecting fire, intrusion, water leakage, and the like. Therefore, when it is going to be equipped with the system about the detection and the information which detects a fire, intrusion, water leakage, etc. in one building, each detection system must be laid by separate work, and those detection systems should be installed. Since there is no system that reports in an integrated manner, it is necessary to construct a separate notification system, which not only complicates the configuration, but also complicates the laying work, increases the area occupied by the system, and reduces the effective area. There was a problem.

The inventor of the present invention paid attention to the function of the optical fiber as a result of repeated research to solve such a problem.
As a detecting means using the function of the optical fiber, for example, the backscattered light is received, the temperature is measured by the Raman scattered light intensity changed by the heat applied to the optical fiber, and the temperature is detected. An optical fiber type distributed temperature sensor is known that identifies the position in an optical fiber where heat has been applied by measuring the time until it returns to OTDR (Optical Time Domain Reflect-meter). No. 7-167717), the function of detecting the heat of fire makes it possible to detect fire.

  In addition, the temperature is measured from the intensity of the Brillouin scattered light in the optical fiber, the position in the optical fiber is specified from the time until the backscattered light returns to the incident end, and further, by the frequency shift of the Brillouin scattered light, It is known that the distortion of the optical fiber caused by touching the optical fiber can be detected, and the position where the distortion has occurred can be identified from the time until the Brillouin scattered light returns to the incident end (Japanese Patent Laid-Open No. 4-248426). ).

  In addition, an expandable or contractible polymer water-absorbing material is provided in the optical fiber, receives backscattered light, and light is absorbed by expansion or contraction of the absorbed polymer-based water absorbent by shifting the frequency of the backscattered light. It is known that the location where distortion occurs can be identified by detecting the strain of the fiber and measuring the time until the backscattered light returns to the incident end (Japanese Patent Laid-Open No. 2004-45226).

  In addition, an inflatable pressing member is provided in the optical fiber so that the return of Rayleigh scattered light is received, and the transmission loss due to distortion of the optical fiber is increased by the expansion of the absorbed pressing member due to the change in the return light amount of the Rayleigh scattered light. It is known that a location where distortion has occurred can be identified by measuring the time until Rayleigh scattered light returns to the incident end (OTDR) (Japanese Patent Laid-Open No. 2004-45218). Publication).

  The OTDR that detects the strain applied to the optical fiber due to Rayleigh scattering from the loss of the optical fiber is disclosed in Japanese Patent Laid-Open No. 3-68825. As for OTDR, C-OTDR (Coherent-Optical Time Domain Reflectometer) for improving sensitivity by heterodyne reception of Rayleigh scattering and B-OTDR (Brillouin Optical Time Domain Reflectometer) based on Brillouin scattering phenomenon due to distortion of optical fiber It is disclosed in the 2011-17652 gazette.

  Japanese Laid-Open Patent Publication No. 5-257015 discloses a leaky optical fiber that adjusts the relative refractive index difference between the core and the clad to leak light in the optical fiber in the axial direction of the optical fiber.

  The object of the present invention is to integrate the functions of detecting fire, intrusion, water leakage, etc. with a single optical fiber cable for detection, thereby facilitating laying work such as wiring to a building. The aim is to provide a disaster prevention system that simplifies, reduces size, saves space, and transfers detection information so that appropriate measures can be taken promptly.

  To achieve the above object, the invention according to claim 1 is connected to at least one distributed detection optical fiber cable laid at a predetermined location to be monitored and to the distributed detection optical fiber cable. And a disaster prevention receiver having at least a detection unit for detecting a temperature due to a fire and transmitting an abnormal signal, wherein the disaster prevention receiver receives an abnormal signal transmitted from the detection unit and issues an alarm, and an abnormal signal Related to the display unit that displays the abnormality content and the location where the abnormality occurred according to the condition, the fire extinguishing system installed at the predetermined location, the surveillance camera security system, etc. that monitors the abnormality content and the location where the abnormality occurred according to the abnormality signal It is characterized in that it has an internal transfer unit for transferring information to the facility and an external transfer unit for transferring the contents of abnormality and the location where the abnormality occurred according to the abnormality signal to the outside.

According to the first aspect of the present invention, at least one temperature detected by the fire is detected by the detection unit connected to at least one of the distributed detection optical fiber cables. In addition, the system can be simplified, downsized, and space can be saved.
And, when the abnormality signal transmitted from the detection unit is received, the alarm generation unit issues an alarm, and the display unit displays the abnormality content and the abnormality occurrence location according to the abnormality signal. The fire extinguishing system, the surveillance camera security system, etc. that can reliably recognize the location where the abnormality has occurred, and that the internal transfer unit is installed at the predetermined location for monitoring the abnormality content and abnormality occurrence location according to the abnormality signal As the abnormality is a fire, the fire extinguishing system can be activated to extinguish the fire, and the surveillance camera security system can be activated to display the location of the malfunction. The abnormal situation can be accurately recognized from the outside, and the external transfer section transfers the abnormal content and the abnormality occurrence location according to the abnormal signal to the outside. It is possible to Do disaster prevention activities.

  The invention according to claim 2 is the fire extinguishing system according to claim 1, wherein the fire extinguishing system identifies a fire location based on the fire information and the fire occurrence location information according to the abnormal signal transferred from the internal transfer section, It is characterized by having a control unit that discharges fire extinguishing agent at the location where a fire occurs.

  According to the second aspect of the present invention, the control is performed to identify the fire location based on the fire information and the fire occurrence location information according to the abnormal signal transferred from the internal transfer section and to release the extinguishing agent at the fire occurrence location. Since the unit is provided, effective fire extinguishing can be performed, and it is possible to stop the fire by the initial fire extinguishing.

  A third aspect of the invention is characterized in that the distributed detection optical fiber cable according to any one of the first and second aspects is configured by a single optical fiber cable.

  According to the third aspect of the present invention, it is possible to further facilitate the laying operation such as wiring to the building, and to further simplify, miniaturize, and save the space of the system.

  According to a fourth aspect of the present invention, there is provided a fire detection means according to any one of the first to third aspects, wherein the detection section is connected to the distributed detection optical fiber cable and detects a temperature due to a fire. Intrusion detection means for detecting intrusion is provided.

  According to a fourth aspect of the present invention, the detection unit detects a fire occurrence and a fire occurrence location, an intrusion occurrence and an intrusion occurrence location from the distributed detection optical fiber cable, and detects the detected information as an abnormal signal. As described above, the information is transmitted to the alarm generation unit, the display unit, the internal transmission unit, and the external transmission unit, thereby enabling prompt disaster prevention activities against a fire or a suspicious person.

  According to a fifth aspect of the present invention, the detection unit according to any one of the first to third aspects is connected to the distributed detection optical fiber cable and detects a temperature due to a fire. It has the intrusion detection means which detects an intrusion, and the water leak detection means which detects a water leak.

  According to invention of Claim 5, the said detection part detects generation | occurrence | production of a fire and a fire occurrence location, the occurrence of an intrusion and an intrusion occurrence location, the occurrence of a water leak and the water leak location from the optical fiber cable for distributed type detection, By transmitting these detection information as an abnormality signal to the alarm generation unit, the display unit, the internal transfer unit, and the external transfer unit, quick disaster prevention activities can be performed against fire, suspicious person intrusion, and water leakage. It becomes possible.

  The invention according to claim 6 is characterized in that the detection unit included in the disaster prevention receiver according to any one of claims 1 to 3 is used in a detection method for detecting a fire by Raman scattering. Yes.

  According to invention of Claim 6, since the said detection part which has in the said disaster prevention receiver is utilized for the detection method which detects a fire by Raman scattering, the backscattered light which generate | occur | produces in the said optical fiber cable for distributed detection The time until the backscattered light returns to the incident end while detecting the occurrence of fire by measuring the temperature by the backscattered light intensity changed by the heat applied to the distributed detection optical fiber cable. By measuring the position of the distributed detection optical fiber cable to which heat has been applied, it is possible to detect the fire occurrence position.

  A seventh aspect of the invention is characterized in that the detection unit of the disaster prevention receiver according to any one of the first to fifth aspects uses Brillouin scattering for a detection method.

  According to invention of Claim 7, since the said detection part which has in the said disaster prevention receiver is utilized for the detection method which detects a fire by Brillouin scattering, the backscattered light which generate | occur | produces in the said optical fiber cable for a distributed type detection Detects the occurrence of a fire by measuring the temperature from the intensity of the backscattered light and detecting the time until the backscattered light returns to the incident end, and the distributed detection with heat applied. The location in the optical fiber cable can be identified and the fire occurrence position can be detected, and the occurrence of intrusion and water leakage can be detected by detecting the distortion of the distributed detection optical fiber by shifting the frequency of the backscattered light. In addition, by measuring the time until the backscattered light returns to the incident end, it is possible to identify the location where distortion has occurred and to detect the location where intrusion or water leakage has occurred, Since these detections can be performed with the single optical fiber cable for distributed detection, it is possible to further facilitate the installation work such as wiring to the building, and further simplify the system, reduce the size, and save space. In addition, the fire detection means, the intrusion detection means, and the water leakage detection means can be configured as a single detection means, whereby the disaster prevention receiver can be downsized.

  In the disaster prevention system according to the present invention, the function of detecting fire, intrusion, water leakage, etc. can be integrated with at least one optical fiber cable for distributed detection, so that installation work such as wiring to a building can be performed. In addition to facilitating simplification, downsizing, and space saving of the system. In addition, the detection unit detects the occurrence of an abnormality and the location of the abnormality from the distributed detection optical fiber cable, and transmits the detected information to the alarm generation unit, the display unit, the internal transmission unit, and the external transmission unit as an abnormal signal. Therefore, it is possible to conduct disaster prevention activities promptly when an abnormality occurs.

It is a general | schematic structure explanatory drawing which shows the 1st example of embodiment of the disaster prevention system which concerns on this invention. It is a schematic explanatory drawing which shows an example which laid the disaster prevention system which concerns on this invention in the monitoring location. It is a general | schematic structure explanatory drawing which shows the 2nd example of embodiment of the disaster prevention system which concerns on this invention. It is explanatory drawing which shows the other example of the optical fiber cable for distributed type detection shown in FIG. It is a general | schematic structure explanatory drawing which shows the 3rd example of embodiment of the disaster prevention system which concerns on this invention. It is explanatory drawing which shows the other example of the optical fiber cable for distributed type detection shown in FIG.

Hereinafter, an example of an embodiment of a disaster prevention system according to the present invention will be described in detail with reference to the drawings.
1 and 2 show a first example of a disaster prevention system according to the present invention, FIG. 1 is a schematic configuration explanatory diagram of the disaster prevention system of the first example, and FIG. 2 is a monitoring point of the disaster prevention system of the first example. It is a schematic explanatory drawing which shows an example laid in.

  The disaster prevention system of the first example is connected to one distributed detection optical fiber cable 2 installed at a predetermined location in the monitoring area 1 and the distributed detection optical fiber cable 2 to detect the temperature and detect a fire. In addition, a fire detection means 3 for detecting a fire occurrence location is provided, and a disaster prevention receiver 5 having a detection section 4 for transmitting an abnormal signal of the occurrence of the fire and the information of the fire occurrence location is provided. The distributed detection optical fiber cable 2 is a temperature sensing optical fiber cable 2a.

  The disaster prevention receiver 5 is connected to the distributed detection optical fiber cable 2 and receives an abnormal signal of the fire information detected by the detection unit 4 that detects the temperature due to fire, and an alarm generation unit 6 that issues an alarm, A display unit 7 for displaying a corresponding fire occurrence and a place where the fire has occurred, a fire extinguishing system 8 installed at a predetermined location, and a monitoring camera for monitoring the fire occurrence and the fire occurrence location corresponding to the abnormal signal within the monitoring area 1 It has an internal transfer unit 10 for transferring information to related equipment such as the security system 9 and an external transfer unit 11 for transferring the occurrence of a fire according to an abnormal signal and the location of the fire occurrence to the outside.

The fire detection means 3 included in the detection unit 4 includes a light source unit that is incident on a temperature sensing optical fiber cable 2a serving as a distributed detection optical fiber cable 2, and backscattered light from the temperature sensing optical fiber cable 2a. A time to measure the temperature based on the intensity of the backscattered light received by the light receiving unit, detect the heat to determine a fire, and the time until the backscattered light returns to the incident end It has the function of identifying the location of the fire from the location of the temperature sensing optical fiber to which heat has been applied.
The fire detection by the fire detection means 3 is determined, for example, by setting a threshold temperature as an abnormal temperature in the range of 40 ° C. to 100 ° C., and when the measured temperature rises to the abnormal temperature in a short time, it is determined as a fire.

In addition, the fire is judged not by the temperature rise time but by calculating the average temperature by detecting the temperature at each location in the room where the distributed detection optical fiber cable 2 is laid. An abnormal temperature and malfunction of fire heat may be determined from the difference. Alternatively, a location for sensing the temperature in the room where the optical fiber cable for detection 1 is laid may be provided, and the abnormal temperature and malfunction of the fire heat may be determined from the difference from the temperature. Thereby, even in the case of a fire in which the temperature gradually increases, the fire can be detected promptly.
In the detection method of the backscattered light in the fire detecting means 3, Brillouin scattering and Raman scattering anti-Stokes light are used.

  Further, the alarm generating unit 6 included in the disaster prevention receiver 5 is connected to the alarm device 13 through the signal line 12 and receives an alarm signal when an abnormal signal of the occurrence of a fire detected by the detecting unit 4 and information on the location of the fire is received. The alarm occurrence is transferred to the device 13.

  Although the display unit 7 is not shown, a map in which the monitoring area 1 is made into a graphic is displayed on the display panel, and a fire indicator lamp for displaying the occurrence of a fire is attached to the map. When an abnormal signal of the fire occurrence and the information on the location of the fire is received, the fire indicator light is turned on.

  In addition, the internal transfer unit 10 monitors the signal lines 14 and 15 in the monitoring area 1 and transfers the internal transfer information to related equipment such as the fire extinguishing system 8 and the monitoring camera security system 9 installed at predetermined locations. The information part 10 is connected.

In the fire extinguishing system 8, the fire extinguisher storage container 16, a pipe 17 that communicates with the fire extinguisher storage container 16 and is disposed at a predetermined location to be monitored in the monitoring area 1, and an injection head attached to the pipe 17. 18 and a fire extinguishing equipment control panel 19 for opening the valve of the fire extinguishing agent storage container 16 and injecting the fire extinguishing agent sent to the predetermined pipe 17 from the ejection head 18.
In the fire extinguishing equipment control panel 19, in the first example, the fire occurrence location is specified by the fire information and the fire occurrence location information corresponding to the abnormal signal transferred from the internal transfer section 10, and the fire occurrence location is extinguished. It has a function of releasing the agent.

The surveillance camera security system 9 receives at least one surveillance camera 20 installed via a network or the like at a predetermined location to be monitored in the surveillance area 1, and an image signal output from the surveillance camera 20. A monitor (not shown) for displaying an image taken by the monitoring camera 20 and a monitoring camera control panel 21 for controlling the monitoring camera 20 are provided.
In the monitoring camera control panel 21, in the first example, the fire location is specified by the fire information and the fire occurrence location information corresponding to the abnormal signal transferred from the internal transfer section 10, and installed at the fire occurrence location. It has a function of displaying an image of the surveillance camera 20 that is being used. An image monitor is installed in a security room or a disaster prevention center, and when there are a plurality of surveillance cameras, the screen is divided and displayed, or the images of each surveillance camera are displayed in order for a certain period of time. In the event of a fire, the monitor camera image of the identified fire location is displayed on the monitor.

  The external transfer unit 11 is connected to an external security guard room and disaster prevention center via a communication line 22, and when an abnormal signal detected by the detection unit 4 is received, a fire is confirmed by a security guard and the fire information is transmitted to a fire department or the like. Report to the relevant department. In the first example, external transmission by the external transmission unit 11 is performed via the communication line 22, but may be performed wirelessly.

In the construction of the disaster prevention system of the first example configured as described above, the disaster prevention receiver 5 is installed in a predetermined place of a building such as a building, a house, a factory, a smart house, or a data center, and distributed type detection is performed. The optical fiber cable 2 is laid in a single stroke at a predetermined location in the monitoring area 1 in the building. For example, it is laid in a passage, a room, or the like that requires monitoring from the entrance and exit of a building so as to stretch around places such as a floor, a wall, and a ceiling according to the monitoring contents. The alarm device 13 connected to the alarm generation unit 6 may be installed in a building, or may be installed in a place away from the building, such as a security room or a disaster prevention center. A terminator 23 is attached to the distal end of the installed distributed detection optical fiber cable 2.
Moreover, in the fire extinguishing system 8 and the monitoring camera security system 9, it is constructed at a predetermined location to be monitored in the monitoring area 1 by a predetermined method.

  The disaster prevention system of the first example configured as described above is connected to the distributed detection optical fiber cable 2 when a fire occurs in the monitoring area 1 in the building where the distributed detection optical fiber cable 2 is laid. The fire detection means 3 detects the occurrence of a fire and the location of the fire, and the detection unit 4 sends an alarm signal for the occurrence of the fire and the location of the fire, an alarm generation unit 6, a display unit 7, an internal transfer unit 10, and an external transfer. Transmit to the information section 11.

  Upon receiving the abnormal signal from the detection unit 4, the alarm generation unit 6 transfers the alarm from the alarm device 13, the display unit 7 turns on the fire indicator lamp, and the external transfer unit 11 provides information on the occurrence of the fire and the location of the fire occurrence. Will be transferred to the security room and disaster prevention center outside the facility, so that appropriate action against fire will be possible immediately.

  Moreover, the internal transfer part 10 which received the abnormal signal from the detection part 4 monitors the fire information according to the abnormal signal, and the fire occurrence part information in the monitoring area 1, and is installed in the predetermined place. 8 and the surveillance camera security system 9.

  The fire extinguishing system 8 identifies the fire location based on the fire information and the fire occurrence location information according to the abnormal signal transferred from the internal transfer section 10 in the fire extinguishing equipment control panel 19, opens the valve of the fire extinguisher storage container 16, Since the fire extinguishing agent is discharged from the jet head 18 attached to the predetermined pipe 17 at the location where the fire has occurred, it is possible to perform effective fire extinguishing, and it is possible to stop the fire by the initial fire extinguishing.

  In addition, the surveillance camera security system 9 identifies a fire occurrence location based on the fire information and the fire occurrence location information corresponding to the abnormal signal transferred from the internal transfer section 10 on the surveillance camera control panel 21, and is installed at the fire occurrence location. Since the monitoring camera 20 that is being operated is activated or specified, the image of the fire occurrence location photographed by the monitoring camera 20 can be monitored, and appropriate action against fire can be promptly performed.

FIGS. 3 and 4 show a second example of the disaster prevention system according to the present invention, FIG. 2 is a schematic configuration diagram of the disaster prevention system of the second example, and FIG. 4 is a distributed detection light shown in FIG. It is explanatory drawing which shows another example of a fiber cable.
The disaster prevention system of the second example has the same basic configuration as that of the first example, the same reference numerals are given to the same configurations as those of the first example, and the description thereof is omitted, and only configurations different from the first example will be described. .

In the second example, the detection unit 4 includes a fire detection means 3 that is connected to the distributed detection optical fiber cable 2 and detects a temperature due to a fire, and an intrusion detection means 25 that detects an intrusion.
And the detection part 4 makes the alarm generation part 6, the display part 7, the internal transfer part 10, and the external transfer part 11 by making the detected information of the occurrence of fire and the location of fire occurrence or intrusion and the detection information of the intrusion occurrence place into an abnormal signal. Transmit to.

  The intrusion detection means 24 of the second example included in the detection unit 4 receives the backscattered light from the distributed detection optical fiber cable 2 and touches the optical fiber by the intensity or frequency shift of the backscattered light. This function detects the distortion of the optical fiber due to and measures the time it takes for the backscattered light to return to the incident end to identify the location where the distortion has occurred. When detecting the distortion of the optical fiber due to the intrusion detector, the intrusion detector determines that the intrusion has occurred and measures the time until the backscattered light returns to the incident end, thereby identifying the location of the intrusion from the distortion location. Have.

In the second example, the Brillouin scattering frequency shift is used in the backscattering light detection method in the intrusion detection means 24.
In the second example, Brillouin scattering is used for the detection method of the backscattered light in the fire detection means 3 and the intrusion detection means 24, and therefore these detections are performed by one distributed detection optical fiber cable 2. .

  The detection method of the backscattered light in the intrusion detection unit 24 is not limited to the method using Brillouin scattering, and may use the intensity of the backscattered light of Rayleigh scattering as shown in FIG. As a detection method in, Raman scattering anti-Stokes light may be used. In this case, the distributed detection optical fiber cable 2 is composed of two detection optical fiber cables, a fire detection optical fiber cable 2a and an intrusion detection optical fiber cable 2b, and the fire detection means 3 has a fire detection optical fiber. The cable 2 a is connected, and the intrusion detection optical fiber cable 2 b is connected to the intrusion detection means 25.

In addition, although not shown, the display unit 7 displays a map in which the monitoring area 1 is graphically displayed on the display panel, and an intrusion indicator lamp for indicating the occurrence of the intrusion is attached to the map. When an intrusion occurrence and an abnormal signal of intrusion occurrence location information are received, the intrusion indicator lamp is turned on.
Other configurations are the same as those in the first example.
In the construction of the disaster prevention system of the second example configured as described above, the construction is performed in the same manner as in the first example. The distributed detection optical fiber cable 2 is preferably laid on the floor in order to improve the sensitivity of intrusion detection.

  The disaster prevention system of the second example configured as described above is connected to the distributed detection optical fiber cable 2 when an intrusion occurs in the monitoring region 1 in the building where the distributed detection optical fiber cable 2 is laid. The intrusion detection means 24 detects the intrusion occurrence and the intrusion occurrence location, and the detection unit 4 sends the intrusion occurrence and the abnormal signal of the intrusion occurrence location to the alarm generation unit 6, the display unit 7, the internal transfer unit 10, and the external transfer. The intrusion detection means 24 detects the intrusion occurrence and the intrusion occurrence location, and the detection portion 4 sends the intrusion occurrence and the intrusion occurrence abnormality signal to the alarm generation portion 6, the display portion 7, and the internal transfer portion. 10 and transmit to the external transfer unit 11.

  The alarm generation unit 6 that has received the abnormal signal from the detection unit 4 transfers the alarm to the alarm device 13, the display unit 7 turns on the intrusion indicator lamp, and the external transfer unit 11 provides information on the intrusion occurrence and the intrusion occurrence location. Will be transferred to the security room and disaster prevention center outside, so that appropriate action against intrusions can be made immediately.

In addition, the internal transfer unit 10 that has received the abnormal signal from the detection unit 4 monitors the intrusion information and the intrusion occurrence location information according to the abnormal signal and is installed at a predetermined location in the monitoring area 1 for monitoring camera security. The information is transferred to the system 9.
The surveillance camera security system 9 specifies an intrusion occurrence location based on the intrusion information and the intrusion occurrence location information according to the abnormal signal transferred from the internal transfer section 10 on the surveillance camera control panel 21, and is installed at the intrusion occurrence location. Since the surveillance camera 20 is activated or specified, the image of the intrusion occurrence location photographed by the surveillance camera 20 can be monitored, and an appropriate action against the intrusion can be made immediately.

  When a fire occurs in the monitoring area 1 inside or outside the building where the distributed detection optical fiber cable 2 is laid, it is the same as the first example, so the explanation of the first example is used, Description is omitted. The distributed detection optical fiber cable 2 is preferably laid on the floor in order to improve the sensitivity of intrusion detection.

5 and 6 show a third example of the disaster prevention system according to the present invention, FIG. 5 is a schematic configuration diagram of the disaster prevention system of the third example, and FIG. 6 is the distributed detection light shown in FIG. It is explanatory drawing which shows the other example of a fiber cable.
The disaster prevention system of the third example has the same basic configuration as the first example and the second example. The same components as those of the first and second examples are denoted by the same reference numerals and the description thereof is omitted. Only the configuration different from the example and the second example will be described.

In the third example, the detection unit 4 includes a fire detection means 3 that is connected to the distributed detection optical fiber cable 2 and detects a temperature due to a fire, an intrusion detection means 24 that detects an intrusion, and a water leakage detection means 25. Yes.
Then, the detection unit 4 uses the detected information of the detected fire occurrence and the fire occurrence location, the intrusion occurrence and the intrusion occurrence location, the water leakage occurrence and the water leakage occurrence location as an alarm signal, the alarm generation unit 6, the display unit 7, and the internal transfer information. Unit 10 and external transfer unit 11.

The water leakage detection means 25 of the third example included in the detection unit 4 is provided with an expandable or contractible polymer water absorbing material on a part of the coating of the optical fiber cable constituting the distributed detection optical fiber cable 2. It is provided to detect the backscattered light from the optical fiber cable and detect the distortion of the optical fiber cable by the expansion or contraction of the water-absorbing polymer-based water-absorbing material by the change in the intensity of the backscattered light or the frequency shift amount. , Measuring the time until backscattered light returns to the incident end, has a function to identify the location where the distortion has occurred, and if a distortion is detected, the leak detector will detect that the leak has occurred and the detected distortion It has a function to specify the location of water leakage from the location.
In the third example, the Brillouin scattered light is used in the method of detecting the backscattered light in the water leakage detecting means 25.
In the third example, since Brillouin scattering is used for the detection method of the backscattered light in the fire detection means 3, the intrusion detection means 24, and the water leakage detection means 25, these detections are performed by one distributed detection type optical fiber cable. 2 is done.

The detection method of the backscattered light in the fire detection means 3, the intrusion detection means 24, and the water leakage detection means 25 is not limited to the one using Brillouin scattering, but uses Rayleigh scattering and Raman scattering as shown in FIG. The detection method in the water leakage detection means 25 may use the anti-Stokes light of Raman scattering as the detection method in the fire detection means 3, and the intensity of Rayleigh scattered backscattered light as the detection method in the intrusion detection means 24. As an alternative, the intensity of Rayleigh scattered backscattered light may be used.
In this case, the distributed detection optical fiber cable 2 is composed of three detection optical fiber cables: a fire detection optical fiber cable 2a, an intrusion detection optical fiber cable 2b, and a water leakage detection optical fiber cable 2c. The fire detection optical fiber cable 2 a is connected to the means 3, the intrusion detection optical fiber cable 2 b is connected to the intrusion detection means 24, and the intrusion detection optical fiber cable 2 c is connected to the water leakage detection means 25. Here, the three optical fiber cables for detection, that is, the optical fiber cable for fire detection 2a, the optical fiber cable for intrusion detection 2b, and the optical fiber cable for water leakage detection 2c may be bundled to form one wire.

Although the display unit 7 is not shown in the figure, a map in which the monitoring area 1 is graphically displayed is displayed on the display panel, and a water leakage indicator lamp for displaying the occurrence of water leakage is attached to the map. When an abnormal signal indicating the occurrence of water leakage and information on the location of the water leakage is received, the water leakage indicator lamp is turned on.
Other configurations are the same as those of the first example and the second example.
In the construction of the disaster prevention system of the third example configured as described above, the construction is performed in the same manner as in the first example. Further, the distributed detection optical fiber cable 2 is preferably laid on the floor in order to improve the sensitivity of water leakage detection.

  The disaster prevention system of the third example configured as described above is connected to the distributed detection optical fiber cable 2 when water leakage occurs in the monitoring area 1 in the building where the distributed detection optical fiber cable 2 is laid. The water leakage detection means 25 detects the occurrence of water leakage and the location where the water leakage has occurred, and the detection unit 4 sends the alarm signal of the occurrence of water leakage and the location of the water leakage to the alarm generation unit 6, the display unit 7, the internal transfer unit 10, and the external transfer. The water leakage detection means 25 detects the occurrence of water leakage and the location of the water leakage, and the detection portion 4 reports the occurrence of the water leakage and the location of the water leakage, the alarm generation unit 6, the display unit 7, and the internal transfer unit. 10 and transmit to the external transfer unit 11.

  The alarm generation unit 6 that has received the abnormal signal from the detection unit 4 transfers the alarm to the alarm device 13, the display unit 7 lights the leak indicator lamp, and the external transfer unit 11 provides information on the occurrence of the water leak and the location of the water leak. Will be transferred to the security room and disaster prevention center outside the facility, so that appropriate action against water leakage will be possible as soon as possible.

Moreover, the internal transfer part 10 which received the abnormal signal from the detection part 4 is the surveillance camera security installed in the predetermined | prescribed location which monitors the leak information and leak location information according to an abnormal signal in the monitoring area 1 The information is transferred to the system 9.
The surveillance camera security system 9 identifies the location of water leakage based on the leakage information and leakage location information according to the abnormal signal transferred from the internal transfer unit 10 on the surveillance camera control panel 21, and is installed at the location where the leakage occurs. Since the surveillance camera 20 is activated or specified, an image of the location of the water leakage taken by the surveillance camera 20 can be monitored, and appropriate action against the water leakage can be made immediately.

  If a fire occurs or an intrusion occurs in the monitoring area 1 in the building where the distributed detection optical fiber cable 2 is laid, the first and second examples are the same as the first and second examples. The explanation of the example is used and the explanation in the second example is omitted.

DESCRIPTION OF SYMBOLS 1 Monitoring area | region 2 Optical fiber cable 2a for detection of detection type Optical fiber cable 2b for fire detection Optical fiber cable 2b for intrusion detection Optical fiber cable 2c for leak detection 3 Fire detection means 4 Detection part 5 Disaster prevention receiver 6 Alarm generation part 7 Display part DESCRIPTION OF SYMBOLS 8 Fire extinguishing system 9 Surveillance camera security system 10 Internal transmission part 11 External transmission part 12 Signal line 13 Alarm device 14, 15 Signal line 16 Extinguishing agent storage 17 Pipe 18 Injection head 19 Fire extinguishing equipment control panel 20 Surveillance camera 21 Surveillance camera Control panel 22 Communication line 23 Terminator 24 Intrusion detection means 25 Water leakage detection means

Claims (7)

Disaster prevention having at least one distributed detection optical fiber cable laid at a predetermined location to be monitored, and a detection unit connected to the distributed detection optical fiber cable and detecting at least a temperature due to a fire and transmitting an abnormal signal With a receiver,
The disaster prevention receiver is configured to receive an abnormality signal transmitted from the detection unit and issue an alarm, an alarm generation unit that issues an alarm, a display unit that displays an abnormality content and an abnormality occurrence location according to the abnormality signal, and an abnormality content according to the abnormality signal. In addition, an internal transmission unit that monitors the location where an abnormality has occurred and transfers it to related equipment such as a fire extinguishing system and a surveillance camera security system installed in a predetermined location, and the content and location of the abnormality in response to the abnormal signal A disaster prevention system characterized by having an external transfer section for transferring information to the outside.   The fire extinguishing system includes a control unit that identifies a fire location based on the fire information and the fire occurrence location information according to the abnormal signal transferred from the internal transfer portion, and releases a fire extinguishing agent to the fire occurrence location. The disaster prevention system according to claim 1.   3. The disaster prevention system according to claim 1, wherein the distributed detection optical fiber cable is configured by a single optical fiber cable. 4.   The said detection part is connected to the said optical fiber cable for a distributed type detection, It has the fire detection means which detects the temperature by fire, and the intrusion detection means which detects intrusion, The thru | or 3 characterized by the above-mentioned. The disaster prevention system according to any one of the above.   The detection unit includes a fire detection unit that is connected to the distributed detection optical fiber cable and detects a temperature due to a fire, an intrusion detection unit that detects an intrusion, and a water leak detection unit that detects water leakage. The disaster prevention system according to any one of claims 1 to 3, wherein the disaster prevention system is characterized in that:   The disaster prevention system according to any one of claims 1 to 3, wherein the detection unit included in the disaster prevention receiver is used in a detection method for detecting a fire by Raman scattering. The disaster prevention system according to any one of claims 1 to 5, wherein the detection unit included in the disaster prevention receiver uses Brillouin scattering as a detection method.