JP2020107369A - Disaster prevention system - Google Patents

Abstract

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

INDUSTRIAL APPLICABILITY The present invention detects a fire, an intrusion, a water leak, etc. in a building, a house, a factory, a smart house, a data center, or the like and gives an alarm, and a fire extinguishing system or a security system installed in the building or the outside. Regarding disaster prevention system to transfer.

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

Since these detection means are in charge of disaster prevention by separate devices and do not have a common configuration, the device becomes complicated to integrate the functions of detecting fire, intrusion, water leakage, etc., and it is necessary for installation work and management. However, there is no system that integrates these functions for detection and transfer of detection information.

JP-A-59-132094 JP 2002-133550 A JP, 2006-99501, A JP, 2009-175811, A

As described above, conventionally, there has not been a system relating to detection and notification of detection information that integrates the functions of detecting fire, intrusion, water leakage, and the like. Therefore, if one building is to be equipped with a detection and notification system for detecting fire, intrusion, water leak, etc., each detection system must be installed separately, and those detection systems must be installed separately. Since there is no integrated notification system, it is necessary to construct an individual notification system, which not only complicates the configuration, but also complicates the laying work, increases the occupied area of the system, and reduces the effective area. There was a problem.

The present inventor has focused on the function of the optical fiber as a result of repeated research to solve such a problem.
As a detection means utilizing the function of the optical fiber, for example, the backscattered light is received, and the temperature is detected by measuring the temperature with the Raman scattered light intensity changed by the heat applied to the optical fiber, and the Raman scattered light is incident on the incident end. There is known an optical fiber type distributed temperature sensor that specifies the position in the optical fiber to which heat is applied by measuring the time until it returns to the OTDR using an OTDR (Optical Time Domain Reflect-meter) method. (Kaihei 7-167717), the function of detecting the heat of a fire makes it possible to detect a fire.

Also, the temperature is measured from the intensity of 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 location of the distortion can be specified from the time until the Brillouin scattered light returns to the incident end (Japanese Patent Laid-Open No. 4-248426). ).

Further, the optical fiber is provided with an expansive or contractible polymer water-absorbing material, receives backscattered light, and shifts the frequency of the backscattered light to cause light absorption by expansion or contraction of the absorbed water-absorbent polymer-based water absorbent. It is known that the location of the strain can be specified 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 expansive pressing member is provided in the optical fiber to receive the return of the Rayleigh scattered light, and due to the change of the returning light amount of the Rayleigh scattered light, the expansion of the pressing member that has absorbed water causes an increase in transmission loss due to strain in the optical fiber. It is known that it is possible to identify the location where the distortion has occurred by detecting the occurrence of the occurrence and measuring the time until the Rayleigh scattered light returns to the incident end (OTDR) (Japanese Patent Laid-Open No. 2004-45218). Gazette).

The OTDR for detecting 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. Regarding the OTDR, a C-OTDR (Coherent-Optical Time Domain Reflectometer) for heterodyne receiving Rayleigh scattering to improve sensitivity and a B-OTDR (Brillouin Optical Time Domain Reflectometer) for Brillouin scattering phenomenon due to distortion of an optical fiber are disclosed. It is disclosed in Japanese Patent Publication No. 2011-17652.

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

An 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 the laying work such as wiring to a building, and The aim is to provide a disaster prevention system that simplifies, downsizes, and saves space, and transfers detected information so that appropriate measures can be taken promptly.

In order to achieve the above object, the invention according to claim 1 connects at least one distributed detection optical fiber cable laid at a predetermined location to be monitored, and the distributed detection optical fiber cable. A disaster prevention receiver having a detection unit for detecting at least the temperature due to a fire and transmitting an abnormality signal, wherein the disaster prevention receiver receives an abnormality signal transmitted from the detection unit and issues an alarm, and an abnormality signal A display unit that displays the content of anomaly and the location of the anomaly according to the above, and the monitoring of the content of the anomaly and the location of the anomaly that corresponds to the anomaly signal, such as a fire extinguishing system installed at a predetermined location, a security camera security system, etc. It is characterized by having an internal transfer unit that transfers to the equipment and an external transfer unit that transfers the contents of the abnormality and the location of the abnormality according to the abnormality signal to the outside.

According to the invention described in claim 1, since at least the temperature due to the fire is detected by the detection unit connected to at least one of the distributed type detection optical fiber cables, a laying work for a building or the like is performed. It is possible to simplify the system, reduce the size of the system, and save space.
Then, upon receiving the abnormal signal transmitted from the detection unit, the alarm generation unit issues an alarm, and the display unit displays the abnormal content and the abnormal location according to the abnormal signal, so that the occurrence of the abnormality, the abnormal content, and The fire extinguishing system, the surveillance camera security system, etc., which can surely recognize the location of the abnormality, and which is installed at a predetermined location where the internal transfer section monitors the content of the abnormality and the location of the abnormality according to the abnormality signal If the abnormality is a fire, the fire extinguishing system can be activated to extinguish the fire, and the surveillance camera security system is activated to display the location where the abnormality occurred. The abnormal situation can be accurately recognized from the outside, and the external transfer section transfers the abnormal content and the location of the abnormal occurrence according to the abnormal signal to the outside, so that prompt disaster prevention activities can be performed.

The invention according to claim 2 is the fire extinguishing system according to claim 1, wherein the fire location is specified by fire information and fire occurrence location information according to the abnormal signal transferred from the internal transfer section, It is characterized by having a control unit for releasing the fire extinguishing agent to the place where the fire occurred.

According to the invention as set forth in claim 2, a control for identifying the fire location based on the fire information and the fire occurrence location information corresponding to the abnormal signal transferred from the internal notification unit, and for releasing the fire extinguishing agent to the fire occurrence location Since it has a part, it is possible to effectively extinguish the fire, and it is possible to stop the fire by the initial extinction.

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

According to the third aspect of the present invention, it is possible to further facilitate the laying work such as wiring on a building, and further simplify, downsize, and save space in the system.

The invention according to claim 4 is the fire detecting means according to any one of claims 1 to 3, wherein the detection unit is connected to the optical fiber cable for distributed detection and detects a temperature due to a fire. It is characterized by having intrusion detection means for detecting intrusion.

According to the invention of claim 4, the detection unit detects the occurrence of a fire and the location of a fire or the occurrence of an intrusion and the location of an intrusion from the distributed detection optical fiber cable, and outputs the detection information as an abnormal signal. As a result, by transmitting to the alarm generation unit, the display unit, the internal transfer unit, and the external transfer unit, it is possible to promptly perform disaster prevention activities against a fire or intrusion of a suspicious person.

The invention according to claim 5 is the fire detecting means according to any one of claims 1 to 3, wherein the detecting portion is connected to the optical fiber cable for distributed type detection and detects a temperature due to a fire. It is characterized by having an intrusion detecting means for detecting an intrusion and a water leakage detecting means for detecting a water leak.

According to the invention of claim 5, the detection unit detects the occurrence of a fire and the location of the fire, the occurrence of the intrusion and the location of the invasion, the occurrence of water leakage and the location of water leakage from the distributed detection optical fiber cable, By transmitting these detection information as an abnormal signal to the alarm generation unit, the display unit, the internal transfer unit, and the external transfer unit, prompt disaster prevention activities can be performed against fire, suspicious person intrusion, and water leakage. It will be possible.

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

According to the invention of claim 6, the detection unit included in the disaster prevention receiver is used for a detection method of detecting a fire by Raman scattering, and thus backscattered light generated in the distributed detection optical fiber cable is used. The time until the backscattered light returns to the incident end while the temperature is measured by the intensity of the backscattered light changed by the heat applied to the distributed type detection optical fiber cable to detect the occurrence of fire. The fire occurrence position can be detected by specifying the location in the optical fiber cable for distributed detection to which heat has been applied by measuring.

The invention according to claim 7 is characterized in that the detector included in the disaster prevention receiver according to any one of claims 1 to 5 uses Brillouin scattering for a detecting method.

According to the invention of claim 7, since the detector provided in the disaster prevention receiver is used in a detection method for detecting a fire by Brillouin scattering, backscattered light generated in the distributed detection optical fiber cable is used. The distributed detection that heat is applied by measuring the temperature from the intensity of the backscattered light to detect the occurrence of fire and measuring the time until the backscattered light returns to the incident end. The location of the fire can be detected by specifying the location in the optical fiber cable for use, and the occurrence of intrusion and water leakage can be detected by detecting the strain of the distributed detection optical fiber by shifting the frequency of the backscattered light. At the same time, by measuring the time until the backscattered light returns to the incident end, it becomes possible to identify the location where distortion has occurred and detect the location where intrusion or water leakage has occurred. Since it can be done with an optical fiber cable for type detection, it is possible to further simplify the work such as wiring to a building, and to further simplify the system, downsize it, and save space. , The intrusion detection means and the water leakage detection means can be configured as one detection means, which can reduce the size of the disaster prevention receiver.

Since the disaster prevention system according to the present invention can perform the function of detecting fire, intrusion, water leakage, etc. by integrating it with at least one distributed detection optical fiber cable, it is possible to carry out the work such as wiring to a building. It is possible to simplify the system, reduce the size of the system, and save space. Further, 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 as an abnormality signal to the alarm generation unit, the display unit, the internal transfer unit, and the external transfer unit. Therefore, it is possible to promptly perform disaster prevention activities in the event of an abnormality.

It is a 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 installed the disaster prevention system which concerns on this invention in the monitoring location. It is a 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 distributed detection optical fiber cable shown in FIG. It is a 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 distributed detection optical fiber cable 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 the 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 a fire detection by detecting the temperature by connecting one distributed detection optical fiber cable 2 laid at a predetermined location in the monitoring area 1 and the distributed detection optical fiber cable 2. In addition, it has a fire detection means 3 for detecting a fire occurrence point and a disaster prevention receiver 5 having a detection section 4 for transmitting an abnormal signal of information on the fire occurrence and the fire occurrence point. The distributed detection optical fiber cable 2 is a temperature detection optical fiber cable 2a.

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

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

Further, the determination of a fire is not the time when the temperature rises, but the temperature is detected at each place in the room where the distributed type detection optical fiber cable 2 is laid and the average temperature is calculated. The difference between the heat and the abnormal temperature of the fire may be judged from the difference. Further, a location for sensing the air temperature in the room where the detection optical fiber cable 1 is laid may be provided, and the abnormal temperature of the heat of the fire and the malfunction may be determined from the difference from the temperature. As a result, even if the temperature of the fire gradually rises, the fire can be detected promptly.
In the method of detecting the backscattered light in the fire detecting means 3, Brillouin scattering and Raman scattering anti-Stokes light are used.

Further, the alarm generation unit 6 included in the disaster prevention receiver 5 is connected to the alarm device 13 through the signal line 12, and when an alarm signal of the fire occurrence detected by the detection unit 4 and the abnormal signal of the information of the fire occurrence place is received, an alarm is issued. The alarm is sent to the device 13.

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

In addition, the internal transfer unit 10 transfers the information to the related equipment such as the fire extinguishing system 8 and the surveillance camera security system 9 installed at a predetermined location, which is monitored in the monitoring area 1 by the signal lines 14 and 15. It is connected to the reporting unit 10.

In the fire extinguishing system 8, a fire extinguishant storage container 16, a pipe 17 which is in communication with the fire extinguishant storage container 16 and which is arranged at a predetermined position to be monitored in the monitoring area 1, and an ejection head attached to the pipe 17. 18 and a fire extinguishing equipment control panel 19 that opens the valve of the fire extinguishing agent storage container 16 to inject the extinguishing agent sent to a predetermined pipe 17 from the ejection head 18.
In the fire extinguisher 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 notification unit 10, and the fire occurrence location is extinguished. It has the function of releasing the agent.

In the surveillance camera security system 9, 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 are received, A monitor (not shown) that displays an image captured by the surveillance camera 20 and a surveillance camera control panel 21 that controls the surveillance camera 20 are provided.
In the first example of the surveillance camera control panel 21, the fire location is specified by the fire information and the fire occurrence location information according to the abnormal signal transferred from the internal notification unit 10, and is installed at the fire occurrence location. It has a function of displaying an image of the monitoring camera 20 in use. The image monitor is installed in the guard room or the disaster prevention center, and when there are multiple surveillance cameras, the images are divided into screens and displayed, or the images of each surveillance camera are displayed in order for a certain period of time. When a fire occurs, display the image of the surveillance camera of the specified fire spot on the monitor.

In addition, the external transfer unit 11 is connected to the outside guard room and the disaster prevention center by a communication line 22, and when an abnormal signal detected by the detection unit 4 is received, the security staff confirms the fire and sends the fire information to the fire department or the like. Report to the relevant departments. In the first example, the transfer to the outside by the external transfer 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 at a predetermined place of a building, house, factory, smart house, data center, or the like, and distributed detection is performed. The optical fiber cable 2 for use is laid in a single stroke at a predetermined position in the monitoring area 1 in the building. For example, it is installed in a passage, a room, or the like that needs to be monitored from the entrance/exit of a building so that it can be stretched around a floor, a wall, a ceiling, or the like depending on the monitoring content. 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 guard room or a disaster prevention center. A terminator 23 is attached to the tip of the laid distributed optical fiber cable for detection 2.
Further, in the fire extinguishing system 8 and the surveillance camera security system 9, the fire extinguishing system 8 and the surveillance camera security system 9 are constructed at a predetermined location in the monitoring area 1 to be monitored.

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 in which the distributed detection optical fiber cable 2 is laid. The fire detecting means 3 detects the occurrence of the fire and the place where the fire has occurred, and the detecting unit 4 sends the alarm signal of the occurrence of the fire and the abnormal signal of the place where the fire has occurred, the display unit 7, the internal notification unit 10, and the external transfer unit. It is transmitted to the reporting unit 11.

The alarm generation unit 6 that has received the abnormal signal from the detection unit 4 transfers the alarm from the alarm device 13, the display unit 7 lights the fire indicator light, and the external transfer unit 11 outputs the information on the fire occurrence and the fire occurrence location. Will be sent to the outside guard room and the disaster prevention center, so that appropriate actions can be immediately taken against a fire.

Further, the internal transfer unit 10 that receives the abnormal signal from the detection unit 4 monitors the fire information and the fire occurrence location information according to the abnormal signal in the monitoring area 1, and the fire extinguishing system installed at a predetermined location. 8 and the surveillance camera security system 9 are transferred.

The fire extinguishing system 8 identifies the fire spot by the fire information and the fire occurrence spot information corresponding to the abnormal signal transferred from the internal transfer unit 10 on the fire extinguisher control panel 19, and opens the valve of the extinguishant storage container 16. Since the fire extinguishing agent is discharged from the jet head 18 attached to the predetermined pipe 17 at the fire occurrence location, effective fire extinguishing can be performed, and the fire can be stopped by the initial fire extinguishing.

Further, the surveillance camera security system 9 identifies the fire occurrence location based on the fire information and the fire occurrence location information according to the abnormal signal transferred from the internal transfer unit 10 on the surveillance camera control panel 21 and installs it 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 captured by the monitoring camera 20 can be monitored, and appropriate action for the fire can be immediately performed.

3 and 4 show a second example of the disaster prevention system according to the present invention. FIG. 2 is a schematic configuration explanatory 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 components as those of the first example are designated by the same reference numerals, and the description thereof will be omitted. Only the configuration different from the first example will be described. ..

In the second example, the detection unit 4 includes a fire detection unit 3 that is connected to the distributed detection optical fiber cable 2 and that detects a temperature due to a fire, and an intrusion detection unit 25 that detects an intrusion.
Then, the detection unit 4 uses the detected fire occurrence and the detected information of the fire occurrence location or the intrusion occurrence and the intrusion occurrence location as an abnormal signal, the alarm generation unit 6, the display unit 7, the internal notification unit 10, and the external notification unit 11. 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 shifting the intensity or frequency of the backscattered light. The optical fiber has a function to detect the distortion of the optical fiber and to measure the time it takes for the backscattered light to return to the incident end to identify the point where the distortion has occurred. If the intrusion detector detects the distortion of the optical fiber due to the, the intrusion detector determines that there is an intrusion and also measures the time until the backscattered light returns to the incident end to identify the intrusion location from the distortion location. Have

The backscattered light detection method of the intrusion detection means 24 uses the frequency shift of Brillouin scattering in the second example.
In the second example, Brillouin scattering is used as the method for detecting the backscattered light in the fire detection means 3 and the intrusion detection means 24, so these detections are performed with one distributed detection optical fiber cable 2. ..

The method for detecting the backscattered light in the intrusion detection means 24 is not limited to the method using Brillouin scattering, but may be the method using the intensity of the backscattered light of Rayleigh scattering as shown in FIG. As the detection method in, the 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 2a is connected, and the intrusion detecting means 25 is connected to the intrusion detecting optical fiber cable 2b.

Although not shown, the display unit 7 displays a map of the monitoring area 1 on the display panel, and an intrusion indicator lamp that indicates the occurrence of an intrusion is attached to the map. The intrusion indicator lamp is turned on when an abnormal signal of information on the occurrence of the intrusion and the location of the intrusion is received.
Other configurations are the same as those in the first example.
In the construction of the disaster prevention system of the second example configured in this way, 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 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 area 1 in the building in which 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 an alarm signal of the intrusion occurrence and the intrusion occurrence location to the alarm generation unit 6, the display unit 7, the internal notification unit 10, and the external transfer unit. The information is transmitted to the reporting unit 11, the intrusion detection unit 24 detects the intrusion occurrence and the intrusion occurrence location, and the detection unit 4 outputs an abnormal signal of the intrusion occurrence and the intrusion occurrence location, the alarm generation unit 6, the display unit 7, the internal transfer unit. 10, transmitted to the external transfer unit 11.

The alarm generation unit 6 which has received the abnormal signal from the detection unit 4 transfers the alarm to the alarm device 13, the display unit 7 lights the intrusion indicator light, and the external transfer unit 11 informs the occurrence of the intrusion and the location of the intrusion. Will be sent to the outside guard room and disaster prevention center, so that appropriate action can be promptly taken against intrusion.

Further, the internal transfer unit 10 that has received the abnormal signal from the detection unit 4 monitors the security of the surveillance camera installed in a predetermined location for monitoring the intrusion information and the intrusion occurrence location information according to the abnormality signal in the monitoring area 1. Transfer to system 9.
The surveillance camera security system 9 identifies the intrusion location based on the intrusion information and the intrusion occurrence location information corresponding to the abnormal signal transferred from the internal notification unit 10 on the surveillance camera control panel 21, and is installed at the intrusion occurrence location. Since the monitoring camera 20 that is present is operated or specified, the image of the intrusion occurrence location taken by the monitoring camera 20 can be monitored, and appropriate action for the intrusion can be immediately performed.

When a fire occurs in the monitoring area 1 inside or outside the building in which the distributed type detection optical fiber cable 2 is laid, the same as in the first example, the description of the first example is used, and in the second example. The description is omitted. Further, 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 explanatory view of the disaster prevention system of the third example, and FIG. 6 is a 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, and the same components as those of the first example and the second example are designated by the same reference numerals and the description thereof will be 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 unit 3 that is connected to the distributed detection optical fiber cable 2 to detect a temperature due to a fire, an intrusion detection unit 24 that detects an intrusion, and a water leakage detection unit 25. There is.
The detection unit 4 uses the detected information of the detected fire occurrence and fire occurrence location, intrusion occurrence and intrusion occurrence location, water leak occurrence and water leak occurrence location detection information as an abnormal signal, the alarm generation unit 6, the display unit 7, and internal transfer. It is transmitted to the unit 10 and the external transfer unit 11.

The water leakage detection means 25 of the third example included in the detection unit 4 includes an expansive or contractible polymer water-absorbing material as a part of the coating of the optical fiber cable constituting the distributed detection optical fiber cable 2. It is provided and receives the backscattered light from the optical fiber cable, and detects the strain of the optical fiber cable due to the expansion or contraction of the polymer-based water absorbing material that has absorbed the water, by the change in the intensity or frequency shift amount of the backscattered light. , It has a function to identify the place where the distortion occurs by measuring the time until the backscattered light returns to the incident end, and if the distortion is detected, the water leakage detector judges that there is water leakage and the detected distortion It has the function of identifying the location of water leakage from the location.
In the third example, Brillouin scattered light is used as the method for detecting backscattered light in the water leakage detection means 25.
In the third example, Brillouin scattering is used for the method of detecting the backscattered light in the fire detection means 3, the intrusion detection means 24, and the water leakage detection means 25, so these detections are performed by one distributed optical fiber cable for detection. I'm going in 2.

The method of detecting the backscattered light in the fire detecting means 3, the intrusion detecting means 24, and the water leak detecting means 25 is not limited to the method using Brillouin scattering, but the method using Rayleigh scattering or Raman scattering as shown in FIG. The fire detection means 3 may use anti-Stokes light of Raman scattering, the intrusion detection means 24 may use the intensity of backscattered light of Rayleigh scattering, and the water leak detection means 25 may detect it. Alternatively, the intensity of the backscattered light of Rayleigh scattering 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 leak detection optical fiber cable 2c. The fire detecting optical fiber cable 2a is connected to the means 3, the intrusion detecting optical fiber cable 2b is connected to the intrusion detecting means 24, and the intrusion detecting optical fiber cable 2c is connected to the water leak detecting means 25. Here, three detection optical fiber cables, that is, the fire detection optical fiber cable 2a, the intrusion detection optical fiber cable 2b, and the water leak detection optical fiber cable 2c may be bundled into one wire.

Although not shown, the display unit 7 displays a map of the monitoring area 1 on the display panel, and the map is equipped with a water leakage indicator lamp that indicates the occurrence of water leakage. When the abnormal signal of the generated water leak and the information on the location of the water leak is received, the water leak indicator light is turned on.
Other configurations are the same as those of the first and second examples.
In the construction of the disaster prevention system of the third example configured in this way, the construction is carried out 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 leak 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 leaks in the monitoring area 1 in the building in which the distributed detection optical fiber cable 2 is laid. The water leakage detection means 25 detects the water leakage occurrence and the water leakage occurrence location, and the detection unit 4 transmits the water leakage occurrence and the abnormal signal of the water leakage occurrence location to the alarm generator 6, the display unit 7, the internal transfer unit 10, and the external transfer. The water leak detection means 25 detects the water leak occurrence and the water leak occurrence location, and the detection unit 4 sends the water leak occurrence and the abnormal signal of the water leak occurrence location to the alarm generation unit 6, the display unit 7, and the internal transfer unit. 10, transmitted 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 water leak indicator light, and the external transfer unit 11 informs the occurrence of water leak and the location of water leak. Will be sent to the outside guard room and disaster prevention center, so it will be possible to take appropriate action immediately against water leakage.

Further, the internal transfer unit 10 that has received the abnormal signal from the detection unit 4 monitors the security of the security camera installed at a predetermined location to monitor the leakage information and the leakage location information according to the abnormality signal in the monitoring area 1. Transfer to system 9.
The surveillance camera security system 9 is installed at the leak occurrence location by identifying the leak occurrence location from the leak information and the leak occurrence location information according to the abnormal signal transferred from the internal transfer unit 10 on the surveillance camera control panel 21. Since the monitoring camera 20 that is present is activated or specified, the image of the water leakage occurrence location taken by the monitoring camera 20 can be monitored, and appropriate action for water leakage can be immediately performed.

When a fire or an intrusion occurs in the monitoring area 1 in the building in which the distributed type detection optical fiber cable 2 is laid, the first example and the second example are the same as in the first example and the second example. The description of the second example is omitted by using the description of the example.

1 monitoring area 2 distributed detection optical fiber cable 2a fire detection optical fiber cable 2b intrusion detection optical fiber cable 2c water leak detection optical fiber cable 3 fire detection means 4 detection unit 5 disaster prevention receiver 6 alarm generation unit 7 display unit 8 Fire Extinguishing System 9 Surveillance Camera Security System 10 Internal Transfer Section 11 External Transfer Section 12 Signal Line 13 Alarm 14, 15 Signal Line 16 Extinguishant Reservoir 17 Piping 18 Jet Head 19 Fire Extinguisher Control Panel 20 Surveillance Camera 21 Surveillance Camera Control panel 22 Communication line 23 Terminator 24 Intrusion detection means 25 Water leakage detection means

In order to achieve the above object, the invention according to claim 1 connects at least one distributed detection optical fiber cable laid at a predetermined location to be monitored, and the distributed detection optical fiber cable. A disaster prevention receiver having a detection unit for detecting at least the temperature due to a fire and transmitting an abnormality signal, wherein the disaster prevention receiver receives an abnormality signal transmitted from the detection unit and issues an alarm, and an abnormality signal A display unit that displays the content of anomaly and the location of the anomaly according to the above, and the related equipment of the fire extinguishing system and the surveillance camera security system installed at a predetermined location that monitors the content of the anomaly and the location of the anomaly according to the anomaly signal. Has an internal transfer section for transferring to the outside and an external transfer section for transferring the abnormality content and the location of the abnormality according to the abnormality signal to the outside, and the distributed detection optical fiber cable is one optical fiber cable. The detection unit includes a fire detection unit that is connected to the distributed detection optical fiber cable and that detects a temperature due to a fire, and an intrusion detection unit that detects intrusion and/or a water leakage detection unit that detects water leakage. In order to determine whether a fire is present, the average temperature is calculated by detecting the temperature at each location in the room where the distributed detection optical fiber cable is laid, and the heat of the fire is calculated from the difference between the temperature and the average temperature. Judging abnormal temperature and malfunction, the fire extinguishing system identifies the fire spot by the fire information and the fire occurrence location information according to the abnormality signal transferred from the internal notification unit, and puts a fire extinguisher at the fire occurrence location. A discharge control unit is provided, the detection unit uses a detection method of detecting a fire by Brillouin scattering, and the display unit displays a map in which a monitoring area is graphically displayed on the display panel, and the map is A fire indicator lamp for indicating the occurrence of a fire is attached, and the fire indicator lamp is turned on when a fire signal transmitted from the detection unit and an abnormal signal of information on the fire occurrence point are received .

According to a second aspect of the present invention, the surveillance camera security system includes at least one surveillance camera installed via a network at a predetermined location in the surveillance area, and an image signal output from the surveillance camera. And a monitor for displaying an image taken by the surveillance camera, and a surveillance camera control panel for controlling the surveillance camera, and the abnormality transferred from the internal reporting unit by the surveillance camera control panel. The fire occurrence point is identified by the fire information and the fire occurrence point information according to the signal, the monitoring camera installed at the fire occurrence point is activated or specified, and the image of the fire occurrence point taken by the monitoring camera is displayed. Is monitored by the display unit.

Claims (7)

Disaster prevention having at least one distributed type detection optical fiber cable laid at a predetermined location to be monitored and a detection unit connected to the distributed type detection optical fiber cable and at least detecting a temperature due to a fire and transmitting an abnormal signal Equipped with a receiver,
The disaster prevention receiver receives an abnormal signal transmitted from a detection unit, issues an alarm, an alarm generation unit, a display unit for displaying an abnormal content and an abnormal location according to the abnormal signal, and an abnormal content according to the abnormal signal. Also, the internal reporting unit that monitors the location of the abnormality and reports to the related equipment such as the fire extinguishing system and surveillance camera security system installed at the prescribed location, and the content of the abnormality and the location of the abnormality according to the abnormality signal are displayed. A disaster prevention system characterized by having an external transfer unit that transfers information to the outside. The fire extinguishing system is provided with a control unit that identifies the fire spot based on the fire information and the fire occurrence point information according to the abnormal signal transferred from the internal notification unit, and releases the extinguishing agent to the fire occurrence point. The disaster prevention system according to claim 1, wherein: The disaster prevention system according to claim 1, wherein the distributed detection optical fiber cable is configured by one optical fiber cable. 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, and an intrusion detection unit that detects an intrusion. The disaster prevention system according to any one of 1. The detection unit includes a fire detection unit that is connected to the distributed type detection optical fiber cable and detects a temperature due to a fire, an intrusion detection unit that detects an intrusion, and a water leakage detection unit that detects water leakage. The disaster prevention system according to any one of claims 1 to 3, which is characterized. The disaster prevention system according to claim 1, wherein the detection unit included in the disaster prevention receiver is used for 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.

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