Smoke monitoring system

Abstract

To allow a monitoring device to collectively monitor a first smoke sensor requiring a smoke alarm board and a second smoke sensor requiring no smoke alarm board.SOLUTION: A smoke monitoring system 10 comprises: a smoke alarm board 100; a dependent type smoke sensor 200 connected to the smoke alarm board 100 via a first signal line 500; an independent type smoke sensor 300; and a monitoring device 400 connected to the smoke alarm board 100 and the independent type smoke sensor 300 via a second signal line 510. The dependent type smoke sensor 200 detects the surrounding smoke and transmits a detection result of the smoke to the smoke alarm board 100. The smoke alarm board 100 transmits the detection result of the smoke received from the dependent type smoke sensor 200 to the monitoring device 400. The independent type smoke sensor 300 detects the surrounding smoke and transmits the detection result of the smoke to the monitoring device 400. The monitoring device 400 displays the detection result of the smoke received from the independent type smoke sensor 300 and the smoke alarm board 100 on a display unit.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a smoke monitoring system.

Background Art

[0002] A system for detecting a fire using a smoke detector is known (for example, Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] Smoke sensors include a dependent smoke sensor that requires a smoke alarm panel and an independent smoke sensor that does not require a smoke alarm panel. The dependent smoke sensor and the independent smoke sensor may be mixed in a single smoke monitoring system. However, while the dependent smoke sensor can be monitored using a smoke alarm panel, the independent smoke sensor cannot be monitored using a smoke alarm panel. Therefore, the dependent smoke sensor and the independent smoke sensor need to be monitored separately at the installation location of the smoke alarm panel and the installation location of each independent smoke sensor, and cannot be monitored collectively.

[0005] One object of the present invention is to enable collective monitoring of a first smoke sensor that requires a smoke alarm panel and a second smoke sensor that does not require a smoke alarm panel using a monitoring device.

Means for Solving the Problems

[0006] One aspect of the present invention provides a smoke monitoring system comprising a smoke alarm panel, a first smoke sensor connected to the smoke alarm panel via a first signal line, a second smoke sensor, and a monitoring device connected to the smoke alarm panel and the second smoke sensor via a second signal line. The first smoke sensor detects ambient smoke and transmits the detection result of the smoke to the smoke alarm panel. The smoke alarm panel transmits the detection result of the smoke received from the first smoke sensor to the monitoring device. The second smoke sensor detects ambient smoke and transmits the detection result of the smoke to the monitoring device. The monitoring device displays the detection result of the smoke received from the second smoke sensor and the smoke alarm panel on a display unit.

[0007] The first smoke sensor determines whether the detection result of the smoke corresponds to at least any one of a plurality of alarm levels according to the detection result of the smoke, and transmits the determination result of the plurality of alarm levels to the smoke alarm panel. The smoke alarm panel transmits the determination result received from the first smoke sensor to the monitoring device. The second smoke sensor determines whether the detection result of the smoke corresponds to at least any one of the plurality of alarm levels according to the detection result of the smoke, and transmits the determination result of the plurality of alarm levels to the monitoring device. The monitoring device may display the corresponding alarm level according to the determination result received from the second smoke sensor and the smoke alarm panel.

[0008] The monitoring device receives operations on the first smoke sensor and the second smoke sensor, transmits a signal corresponding to the operation on the first smoke sensor to the smoke alarm panel, and transmits a signal corresponding to the operation on the second smoke sensor to the second smoke sensor. The smoke alarm panel transmits the signal received from the monitoring device to the first smoke sensor. The first smoke sensor performs processing according to the signal received from the smoke alarm panel. The second smoke sensor may perform processing according to the signal received from the monitoring device.

[0009] The monitoring device has a first operation mode and a second operation mode. In the second operation mode, operations on the first smoke sensor and the second smoke sensor may be restricted compared to the first operation mode.

[0010] The smoke alarm panel and the first smoke sensor communicate with each other according to a first communication method. The smoke alarm panel and the monitoring device communicate with each other according to a second communication method different from the first communication method. The second smoke sensor and the monitoring device may communicate with each other according to the second communication method.

Advantages of the Invention

[0011] According to the present invention, it is possible to collectively monitor a first smoke sensor that requires a smoke alarm panel and a second smoke sensor that does not require a smoke alarm panel using a monitoring device.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Embodiments for Carrying Out the Invention

[0013] Configuration FIG. 1 is a diagram showing an example of a smoke monitoring system 10 according to an embodiment. The smoke monitoring system 10 is installed in a fire protection target such as a server room, a data center, or a clean room. The smoke monitoring system 10 detects signs of a fire by monitoring the state of the ambient air in the fire protection target. By detecting signs of a fire in this way, it becomes possible to respond quickly at an early stage.

[0014] The smoke monitoring system 10 includes a plurality of smoke alarm panels 100, a plurality of slave-type smoke sensors 200, a plurality of independent-type smoke sensors 300, and a monitoring device 400. A plurality of slave-type smoke sensors 200 are connected to each smoke alarm panel 100 via a first signal line 500. The first signal line 500 is a computer network based on the RS-485 standard. Each smoke alarm panel 100 and the slave-type smoke sensors 200 connected to that smoke alarm panel 100 communicate according to the RS-485 standard. The RS-485 standard is an example of the "first communication method" according to the present invention. Note that the communication method used for communication between the smoke alarm panel 100 and the slave-type smoke sensors 200 is not necessarily limited to the RS-485 standard, and other communication methods such as serial communication standards other than RS-485 may be used.

[0015] The plurality of smoke alarm panels 100, the plurality of independent-type smoke sensors 300, and the monitoring device 400 are connected via a second signal line 510. The second signal line 510 is a general-purpose computer network based on IP (Internet Protocol). An example of the second signal line 510 is a LAN (Local Area Network). The monitoring device 400 communicates with each smoke alarm panel 100 and the monitoring device 400 communicates with each independent-type smoke sensor 300 according to IP respectively. IP is an example of the "second communication method" according to the present invention.

[0016] The smoke alarm panel 100 is a device that receives the smoke detection result from the slave-type smoke sensor 200 and outputs an alarm according to this smoke detection result.

[0017] The slave-type smoke sensor 200, also called a communication-type smoke sensor, is a smoke sensor that is subordinate to the smoke alarm panel 100. Here, "subordinate" means that the smoke alarm panel 100 undertakes part of the smoke alarm function. The slave-type smoke sensor 200 detects the surrounding smoke and transmits the detection result of the smoke to the smoke alarm panel 100. The slave-type smoke sensor 200 is an example of the "first smoke sensor" according to the present invention.

[0018] The independent-type smoke sensor 300, also called a stand-alone type smoke sensor, is a smoke sensor that operates independently without requiring the smoke alarm panel 100. Here, "operates independently" means that the smoke alarm function can be realized without relying on other devices. The independent-type smoke sensor 300 detects the surrounding smoke and outputs an alarm according to the detection result of the smoke. The independent-type smoke sensor 300 is an example of the "second smoke sensor" according to the present invention.

[0019] The monitoring device 400 collects the detection results of the smoke by the slave-type smoke sensor 200 and the independent-type smoke sensor 300, and displays them so that these detection results can be monitored collectively. In addition, the monitoring device 400 accepts operations on these devices in order to realize remote operations on the smoke alarm panel 100, the slave-type smoke sensor 200, and the independent-type smoke sensor 300. The monitoring device 400 is used by both maintenance personnel and general users.

[0020] FIG. 2 is a diagram showing an example of the configuration of the smoke alarm panel 100. The smoke alarm panel 100 includes a control unit 101, a storage unit 102, a first communication unit 103, a second communication unit 104, an operation unit 105, a display unit 106, and a sound output unit 107. These parts are connected via a bus.

[0021] The control unit 101 is a processor that controls each part of the self-device and performs various processes. The control unit 101 includes, for example, a CPU (Central Processing Unit). The storage unit 102 is a memory that stores programs and various data for realizing the functions of the self-device. The storage unit 102 includes at least one of, for example, a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), and a RAM (Random Access Memory).

[0022] The first communication unit 103 is a communication interface for connecting the self-device to the first signal line 500. The first communication unit 103 is used, for example, to communicate with other devices connected via the first signal line 500 in accordance with RS-485. The first communication unit 103 includes, for example, a network adapter corresponding to RS-485.

[0023] The second communication unit 104 is a communication interface for connecting the self-device to the second signal line 510. The second communication unit 104 is used, for example, to communicate with other devices connected via the second signal line 510 in accordance with IP. The second communication unit 104 includes, for example, a network adapter corresponding to LAN.

[0024] The operation unit 105 is used for operating the self-device. The operation unit 105 includes, for example, operation buttons. The display unit 106 displays various information. The display unit 106 includes at least one of, for example, a 7-segment display, an LED (Light Emitting Diode), and a liquid crystal display. The sound output unit 107 outputs various sounds. The sound output unit 107 includes, for example, a speaker.

[0025] The control unit 101 functions as a first receiving means 111, an output means 112, a first transmitting means 113, a second receiving means 114, and a second transmitting means 115. These functions are realized by the control unit 101 executing a program stored in the storage unit 102, performing calculations by the control unit 101, or controlling each part of the smoke alarm panel 100.

[0026] The first receiving means 111 receives the smoke detection result from the slave type smoke sensor 200.

[0027] The output means 112 outputs an alarm according to the smoke detection result received by the first receiving means 111. The output of this alarm includes at least any one of the display of the alarm on the display unit 106, the output of the transfer signal to the external device, and the output of the alarm sound from the sound output unit 107.

[0028] The first transmitting means 113 transmits the smoke detection result of the slave type smoke sensor 200 received by the first receiving means 111 to the monitoring device 400.

[0029] When an operation on the slave type smoke sensor 200 connected to the own device or the own device is performed in the monitoring device 400, the second receiving means 114 receives a signal corresponding to this operation from the monitoring device 400.

[0030] When the second receiving means 114 receives a signal corresponding to an operation on the slave type smoke sensor 200, the second transmitting means 115 transmits this signal to the slave type smoke sensor 200 that is the target of the operation.

[0031] Figure 3 is a diagram showing an example of the configuration of the slave type smoke sensor 200. The slave type smoke sensor 200 includes a control unit 201, a storage unit 202, a communication unit 203, and a smoke detection unit 204. These parts are connected via a bus.

[0032] The control unit 201, the memory unit 202, and the communication unit 203 are the same as the control unit 101, the memory unit 102, and the first communication unit 103 described above, respectively. However, a program for realizing the functions of the slave type smoke sensor 200 is stored in the memory unit 202.

[0033] The smoke detection unit 204 sucks the surrounding air and measures the smoke concentration. Thereby, the smoke detection unit 204 detects the smoke present in the surrounding air. The range of the smoke concentration that the smoke detection unit 204 can measure is, for example, from 0.0001% / m to 20.0% / m. For the detection of smoke, for example, the total scattering light method or the two-light reception method is used. However, the method for detecting smoke is not limited to these methods, and other methods may be used.

[0034] The control unit 201 functions as a determination means 211, a transmission means 212, and a reception means 213. These functions are realized by the control unit 201 executing the program stored in the memory unit 202, performing calculations by the control unit 201, or controlling each part of the slave type smoke sensor 200.

[0035] The determination means 211 determines whether or not it corresponds to at least any one of a plurality of alarm levels according to the smoke detection result by the smoke detection unit 204. As an example, the plurality of alarm levels are three-level alarm levels of "Alarm 1", "Alarm 2", and "Alarm 3". "Alarm 1" is the lowest alarm level. "Alarm 2" is the second lowest alarm level. "Alarm 3" is the highest alarm level.

[0036] The transmission means 212 transmits the smoke detection result by the smoke detection unit 204 to the smoke alarm panel 100. The smoke detection result includes the determination result by the determination means 211.

[0037] When an operation targeting the own device is performed in the monitoring device 400, the reception means 213 receives a signal corresponding to this operation via the smoke alarm panel 100.

[0038] FIG. 4 is a diagram showing an example of the configuration of the standalone smoke sensor 300. The standalone smoke sensor 300 includes a control unit 301, a storage unit 302, a communication unit 303, a smoke detection unit 304, an operation unit 305, a display unit 306, and a sound output unit 307. These components are connected via a bus.

[0039] The control unit 301, the storage unit 302, the communication unit 303, the operation unit 305, the display unit 306, and the sound output unit 307 are the same as the control unit 101, the storage unit 102, the second communication unit 104, the operation unit 105, the display unit 106, and the sound output unit 107 described above, respectively. However, a program for realizing the functions of the standalone smoke sensor 300 is stored in the storage unit 302.

[0040] The smoke detection unit 304 sucks in the surrounding air and measures the smoke concentration. Thereby, the smoke detection unit 304 detects the smoke present in the surrounding air. The range of the smoke concentration that the smoke detection unit 304 can measure is, for example, from 0.0001% / m to 20.0% / m. For smoke detection, for example, the total scattering light method or the two-receiving light method is used. However, the method for detecting smoke is not limited to these methods, and other methods may be used.

[0041] The control unit 301 functions as a determination means 311, an output means 312, a transmission means 313, and a reception means 314. These functions are realized by the control unit 301 executing the program stored in the storage unit 302, performing calculations by the control unit 301, or controlling each part of the standalone smoke sensor 300.

[0042] The determination means 311 determines whether or not it corresponds to at least any one of a plurality of alarm levels according to the smoke detection result by the smoke detection unit 304. As an example, the plurality of alarm levels are the three-level alarm levels of "Alarm 1", "Alarm 2", and "Alarm 3" described above.

[0043] Output means 312 outputs an alarm according to the determination result of determination means 311. Output of this alarm includes at least any one of display of the alarm on display unit 306, output of a transfer signal to an external device, and output of an alarm sound from sound output unit 307.

[0044] Transmission means 313 transmits the smoke detection result by smoke detection unit 304 to monitoring device 400. The smoke detection result includes the determination result by determination means 311.

[0045] Receiving means 314 receives a signal corresponding to this operation from monitoring device 400 when an operation targeting this device is performed in monitoring device 400.

[0046] FIG. 5 is a diagram showing an example of the configuration of monitoring device 400. For monitoring device 400, for example, a general-purpose computer is used. Monitoring device 400 includes a control unit 401, a storage unit 402, a communication unit 403, an operation unit 404, and a display unit 405. These parts are connected via a bus.

[0047] Control unit 401, storage unit 402, communication unit 403, operation unit 404, and display unit 405 are the same as control unit 101, storage unit 102, second communication unit 104, operation unit 105, and display unit 106 described above, respectively. However, a program for realizing the functions of monitoring device 400 is stored in storage unit 402. Operation unit 404 includes, for example, a keyboard and a mouse.

[0048] Control unit 401 functions as receiving means 411, display control means 412, and transmission means 413. These functions are realized by control unit 401 executing the program stored in storage unit 402, and control unit 401 performing calculations or controlling each part of monitoring device 400.

[0049] Receiving means 411 receives the smoke detection result from smoke alarm panel 100 and independent smoke sensor 300.

[0050] The display control means 412 displays the smoke detection results received from the smoke alarm panel 100 and the independent smoke sensor 300 on the display unit 405.

[0051] When an operation on the slave smoke sensor 200 or the independent smoke sensor 300 is performed using the operation unit 105, the transmission means 413 transmits a signal corresponding to this operation to the smoke alarm panel 100 to which the slave smoke sensor 200 that is the target of this operation is connected or to the independent smoke sensor 300 that is the target of this operation.

[0052] Operation FIG. 6 is a sequence chart showing an example of an operation for collectively monitoring the slave smoke sensor 200 and the independent smoke sensor 300. This operation is repeated, for example, at a predetermined time interval.

[0053] In step S11, the smoke detection unit 204 of each slave smoke sensor 200 measures the smoke concentration of the surrounding air. In step S12, the determination means 211 of each slave smoke sensor 200 determines whether or not it corresponds to an alarm level using the smoke concentration measured in step S11.

[0054] For each slave smoke sensor 200, a first threshold value, a second threshold value, and a third threshold value are preset to determine three levels of alarm levels, namely, "Alarm 1", "Alarm 2", and "Alarm 3". The first threshold value, the second threshold value, and the third threshold value are transmitted from the smoke alarm panel 100 to each slave smoke sensor 200 in advance and stored in the storage unit 202 of each slave smoke sensor 200. The first threshold value, the second threshold value, and the third threshold value are set, for example, within a range of 0.01% / m to 20.0% / m. The first threshold value is the smallest among the three threshold values. The second threshold value is larger than the first threshold value and smaller than the third threshold value. The third threshold value is the largest among the three threshold values.

[0055] The determination means 211 determines the alarm level by comparing the smoke concentration measured by the smoke detection unit 204 with a first threshold value, a second threshold value, and a third threshold value. For example, when the smoke concentration is less than or equal to the first threshold value, the determination means 211 determines that it does not correspond to any of the alarm levels of "Alarm 1" to "Alarm 3". When the smoke concentration is greater than the first threshold value and less than or equal to the second threshold value, the determination means 211 determines that it corresponds to the alarm level of "Alarm 1". When the smoke concentration is greater than the second threshold value and less than or equal to the third threshold value, the determination means 211 determines that it corresponds to the alarm level of "Alarm 2". When the smoke concentration is greater than the third threshold value, the determination means 211 determines that it corresponds to the alarm level of "Alarm 3".

[0056] In step S13, the transmission means 212 of each slave-type smoke sensor 200 transmits the detection result of its own device to the smoke alarm panel 100. This detection result includes an identifier that uniquely identifies the slave-type smoke sensor 200 and the smoke concentration measured in step S11. This smoke concentration is an analog value. Also, when it is determined in step S12 that it corresponds to any of the alarm levels of "Alarm 1" to "Alarm 3", this detection result includes alarm information indicating the corresponding alarm level.

[0057] In step S14, when the first receiving means 111 of each smoke alarm panel 100 receives the smoke detection result from the slave-type smoke sensor 200 connected to its own device, the first transmission means 113 transmits this detection result to the monitoring device 400.

[0058] Here, when the smoke detection result received from the slave-type smoke sensor 200 includes alarm information, the output means 112 of the smoke alarm panel 100 outputs an alarm corresponding to the alarm level indicated by the alarm information. The output of this alarm includes at least any one of the display of the alarm on the display unit 106, the output of a transfer signal to an external device, and the output of an alarm sound from the sound output unit 107.

[0059] In step S15, the smoke detection unit 304 of each independent smoke sensor 300 measures the smoke concentration of the surrounding air. In step S16, the determination means 311 of each independent smoke sensor 300 determines whether the smoke concentration measured in step S15 corresponds to an alarm level in the same manner as the process of step S12 described above. In the independent smoke sensor 300 as well, a first threshold value, a second threshold value, and a third threshold value are preset and stored in the storage unit 302. The determination means 311 determines whether it corresponds to an alarm level by comparing the smoke concentration measured in step S15 with the first threshold value, the second threshold value, and the third threshold value.

[0060] Here, when it is determined that it corresponds to any of the alarm levels from "Alarm 1" to "Alarm 3", the output means 312 of the independent smoke sensor 300 outputs an alarm. The output of this alarm includes at least any one of the display of the alarm on the display unit 306, the output of the transfer signal to the external device, and the output of the alarm sound from the sound output unit 307.

[0061] In step S17, the transmission means 313 of each independent smoke sensor 300 transmits the detection result of its own device to the monitoring device 400. This detection result includes an identifier that uniquely identifies the independent smoke sensor 300 and the smoke concentration measured in step S15. Further, when it is determined in step S16 that it corresponds to any of the alarm levels from "Alarm 1" to "Alarm 3", this detection result includes alarm information indicating the corresponding alarm level.

[0062] Note that the processes of steps S11 to S14 and the processes of steps S15 to S17 may be performed in parallel, or the processes of steps S15 to S17 may be performed before or after the processes of steps S11 to S14.

[0063] In step S18, when the receiving means 411 of the monitoring device 400 receives a detection result from the smoke alarm panel 100 or the independent smoke sensor 300, it stores this detection result in the storage unit 402. At this time, the identifier, smoke concentration, and alarm information included in one detection result are stored in association with each other. As a result, the storage unit 402 stores the detection results of the plurality of slave-type smoke sensors 200 and the detection results of the plurality of independent smoke sensors 300.

[0064] In step S19, the display control means 412 of the monitoring device 400 displays a monitoring screen 600 showing the detection results stored in the storage unit 402 on the display unit 405 according to the operation of the operator. This operator may be a maintenance staff or a general user.

[0065] FIG. 7 is a diagram showing an example of the monitoring screen 600. The monitoring screen 600 has a selection area 610, a display area 620, an event area 640, and an operation area 650. The selection area 610 receives an operation for selecting the smoke alarm panel 100 or the independent smoke sensor 300. Here, it is assumed that the smoke alarm panel 100 includes a smoke alarm panel 100A and a smoke alarm panel 100B. In this case, the selection area 610 includes a selection button 611 used for selecting the smoke alarm panel 100A, a selection button 612 used for selecting the smoke alarm panel 100B, and a selection button 613 used for selecting the independent smoke sensor 300.

[0066] In the display area 620, the detection results of the slave-type smoke sensors 200 connected to the smoke alarm panel 100 selected in the selection area 610 or the independent smoke sensors 300 selected in the selection area 610 are displayed. In the display area 620, as many sensor areas 621 are displayed as the number of slave-type smoke sensors 200 connected to the smoke alarm panel 100 selected in the selection area 610 or the number of independent smoke sensors 300 selected in the selection area 610. Note that a maximum display number may be determined for the display area 620. When the number of sensor areas 621 is more than the maximum display number, the sensor areas 621 are arranged over a plurality of pages, and according to an operation to move to the next page, the sensor areas 621 arranged on the next page may be displayed.

[0067] Each sensor area 621 includes a smoke concentration area 622, a bar graph 623, and alarm symbols 624 to 626 called "Alarm 1" to "Alarm 3". The smoke concentration area 622 displays the smoke concentration measured by the slave type smoke sensor 200 or the independent type smoke sensor 300. The bar graph 623 displays a bar indicating this smoke concentration. The alarm symbol 624 is lit and displayed when at least one of the alarm levels of "Alarm 1" to "Alarm 3" is determined according to the smoke concentration measured by the slave type smoke sensor 200 or the independent type smoke sensor 300. The alarm symbol 625 is lit and displayed when either the alarm level of "Alarm 2" or "Alarm 3" is determined according to the smoke concentration measured by the slave type smoke sensor 200 or the independent type smoke sensor 300. The alarm symbol 626 is lit and displayed when the alarm level of "Alarm 3" is determined according to the smoke concentration measured by the slave type smoke sensor 200 or the independent type smoke sensor 300. This lit display means to display prominently in a lit color such as red.

[0068] Here, it is assumed that slave type smoke sensors 200A to 200C are connected to the smoke alarm panel 100A. In this case, when an operation of pressing the selection button 611 is performed using the operation unit 404, sensor areas 621-1 to 621-3 corresponding to the slave type smoke sensors 200A to 200C connected to the smoke alarm panel 100A are displayed in the display area 620. Further, the detection results associated with the identifiers of the slave type smoke sensors 200A to 200C are read from the storage unit 402 and are respectively displayed in the sensor areas 621-1 to 621-3.

[0069] For example, when the smoke concentration measured by the slave-type smoke sensor 200A is 0.01% / m and it is determined that it does not correspond to any of the alarm levels from "Alarm 1" to "Alarm 3", as shown in FIG. 7, in the smoke concentration area 622 of the sensor area 621-1, a smoke concentration of 0.01% / m is displayed. In the bar graph 623 of the sensor area 621-1, a bar indicating a smoke concentration of 0.01% / m is displayed. All of the alarm symbols 624 to 626 of "Alarm 1" to "Alarm 3" are displayed in a non-illuminated state. This non-illuminated display means that it is displayed in a non-conspicuous color such as gray so as not to stand out.

[0070] Also, when the smoke concentration measured by the slave-type smoke sensor 200B is 0.04% / m and it is determined that it corresponds to the alarm level of "Alarm 1", as shown in FIG. 7, in the smoke concentration area 622 of the sensor area 621-2, a smoke concentration of 0.04% / m is displayed. In the bar graph 623 of the sensor area 621-2, a bar indicating a smoke concentration of 0.04% / m is displayed. The alarm symbol 624 of "Alarm 1" is displayed in an illuminated state. The alarm symbol 625 of "Alarm 2" and the alarm symbol 626 of "Alarm 3" are displayed in a non-illuminated state.

[0071] Furthermore, when the smoke concentration measured by the sensor area 621-3 is 0.15% / m and it is determined that it corresponds to the alarm level of "Alarm 3", as shown in FIG. 7, in the smoke concentration area 622 of the sensor area 621-3, a smoke concentration of 0.15% / m is displayed. In the bar graph 623 of the sensor area 621-3, a bar indicating a smoke concentration of 0.15% / m is displayed. In the example shown in FIG. 7, since the maximum value of the bar graph 623 is 0.10% / m, the portion exceeding the maximum value is not displayed in the bar graph 623. All of the alarm symbols 624 to 626 of "Alarm 1" to "Alarm 3" are displayed in an illuminated state.

[0072] The displays in the sensor areas 621-1 to 621-3 are updated each time new detection results of the slave smoke sensors 200A to 200C are stored in the storage unit 402. Therefore, the detection results of the slave smoke sensors 200A to 200C are displayed in real time in the sensor areas 621-1 to 621-3.

[0073] Here, in the example shown in FIG. 7, alarms "Alarm 1" and "Alarm 3" are generated according to the smoke concentrations measured by the slave smoke sensors 200B and 200C, respectively. In this case, the detection results of the slave smoke sensors 200B and 200C are preferentially displayed on the monitoring screen 600. For example, even if the operator does not perform an operation of pressing the selection button 611 used for selecting the smoke alarm panel 100A, the detection results of the slave smoke sensors 200 connected to the smoke alarm panel 100A are displayed in the display area 620. Further, as shown in FIG. 7, an additional image 615 indicating the occurrence of an alarm is added to the selection button 611 used for selecting the smoke alarm panel 100A. Furthermore, as shown in FIG. 7, event information 643 including the identifier of the slave smoke sensor 200B and the alarm level of "Alarm 1" and event information 641 including the identifier of the slave smoke sensor 200C and the alarm level of "Alarm 3" are displayed in the event area 640.

[0074] FIG. 8 is a diagram showing another example of the monitoring screen 600. Here, it is assumed that the independent smoke sensors 300 include independent smoke sensors 300A and 300B. In this case, when an operation of pressing the selection button 613 is performed using the operation unit 404, sensor areas 621-4 and 621-5 corresponding to the independent smoke sensors 300A and 300B, respectively, are displayed in the display area 620. Further, the detection results associated with the identifiers of the independent smoke sensors 300A and 300B are read from the storage unit 402 and displayed in the sensor areas 621-4 and 621-5, respectively.

[0075] For example, when the smoke concentration measured by the independent smoke sensor 300A is 0.01% / m and it is determined that it does not correspond to any of the alarm levels of "Alarm 1" to "Alarm 3", as shown in FIG. 8, in the smoke concentration area 622 of the sensor area 621-4, the smoke concentration of 0.01% / m is displayed. In the bar graph 623 of the sensor area 621-4, a bar indicating the smoke concentration of 0.01% / m is displayed. All of the alarm symbols 624 to 626 of "Alarm 1" to "Alarm 3" are turned off.

[0076] Also, when the smoke concentration measured by the independent smoke sensor 300B is 0.08% / m and it is determined that it corresponds to the alarm level of "Alarm 2", as shown in FIG. 8, in the smoke concentration area 622 of the sensor area 621-5, the smoke concentration of 0.08% / m is displayed. In the bar graph 623 of the sensor area 621-5, a bar indicating the smoke concentration of 0.08% / m is displayed. The alarm symbol 624 of "Alarm 1" and the alarm symbol 625 of "Alarm 2" are turned on. The alarm symbol 626 of "Alarm 3" is turned off.

[0077] The displays of the sensor areas 621-4 and 621-5 are updated each time new detection results of the independent smoke sensors 300A and 300B are stored in the storage unit 402. Therefore, the detection results of the independent smoke sensors 300A and 300B are displayed in real time in the sensor areas 621-4 and 621-5.

[0078] Here, in the example shown in FIG. 8, an alarm named "Alarm 2" is generated according to the smoke concentration measured by the independent smoke sensor 300B. In this case, the detection result of the independent smoke sensor 300B is preferentially displayed on the monitoring screen 600. For example, even if the operator does not perform an operation of pressing the selection button 613 used for selecting the independent smoke sensor 300, the detection result of the independent smoke sensor 300 shown in FIG. 8 is displayed in the display area 620. However, when an alarm named "Alarm 2" is generated according to the smoke concentration measured by the independent smoke sensor 300B and an alarm named "Alarm 3" is generated according to the smoke concentration measured by the slave smoke sensor 200C, since the alarm level of "Alarm 3" is high, the detection result of the slave smoke sensor 200C may be preferentially displayed in the display area 620 instead of the detection result of the independent smoke sensor 300. Also, as shown in FIG. 8, an additional image 615 indicating the occurrence of an alarm is added to the selection button 613 used for selecting the independent smoke sensor 300. Furthermore, as shown in FIG. 8, event information 642 including the identifier of the independent smoke sensor 300B and the alarm level of "Alarm 2" is displayed in the event area 640.

[0079] Also, in addition to the detection result of the slave smoke sensor 200 or the independent smoke sensor 300, the state of the slave smoke sensor 200 or the independent smoke sensor 300 may be displayed in the sensor area 621. The state of the slave smoke sensor 200 or the independent smoke sensor 300 may be displayed according to this signal when a signal indicating the state of the slave smoke sensor 200 or the independent smoke sensor 300 is transmitted from, for example, the smoke alarm panel 100, the slave smoke sensor 200, or the independent smoke sensor 300 to the monitoring device 400. Alternatively, when the monitoring device 400 controls the state of the slave smoke sensor 200 or the independent smoke sensor 300, the state of the slave smoke sensor 200 or the independent smoke sensor 300 may be displayed according to this control content.

[0080] The states of the slave smoke sensor 200 or the independent smoke sensor 300 include a normal state, an abnormal state, and a blocked state. Note that the states of the slave smoke sensor 200 or the independent smoke sensor 300 are not limited to the normal state, the abnormal state, and the blocked state. The states of the slave smoke sensor 200 or the independent smoke sensor 300 may include at least any one of a state in which various tests are being executed, a state in which environmental monitoring is being executed, and a state in which airflow normalization is being executed.

[0081] In the example shown in FIG. 7 or FIG. 8, the sensor area 621 includes a normal symbol 627 indicating a normal state, an abnormal symbol 628 indicating an abnormal state, and a blocked symbol 629 indicating a blocked state. For example, when the slave smoke sensor 200 or the independent smoke sensor 300 is normal, the normal symbol 627 included in the corresponding sensor area 621 is lit and displayed, and the abnormal symbol 628 is turned off and not displayed. On the other hand, when there is an abnormality in the slave smoke sensor 200 or the independent smoke sensor 300, the abnormal symbol 628 included in the corresponding sensor area 621 is lit and displayed, and the normal symbol 627 is turned off and not displayed. When the transmission of the slave smoke sensor 200 or the independent smoke sensor 300 is blocked, the blocked symbol 629 included in the corresponding sensor area 621 is lit and displayed.

[0082] Note that when there is an abnormality in the slave smoke sensor 200 or the independent smoke sensor 300, an additional image indicating the occurrence of the abnormality may be added to the selection button used for selecting the smoke alarm panel 100 to which the slave smoke sensor 200 is connected or the independent smoke sensor 300. Further, in the event area 640, event information including the identifier of the slave smoke sensor 200 or the independent smoke sensor 300 having an abnormality and a message indicating the occurrence of the abnormality may be displayed.

[0083] FIG. 9 is a diagram showing yet another example of the monitoring screen 600. In the example shown in FIG. 9, the detection results of the slave-type smoke sensor 200 or the independent-type smoke sensor 300 are displayed on the map 630. The monitoring screen 600 shown in FIG. 7 or FIG. 8 and the monitoring screen 600 shown in FIG. 9 may be switched according to the operation of the operator. For example, on the monitoring screen 600, a tab item 661 called "display side by side" and a tab item 662 called "map display" are displayed. When an operation of selecting the tab item 661 called "display side by side" is performed using the operation unit 404, the monitoring screen 600 shown in FIG. 7 or FIG. 8 is displayed. On the other hand, when an operation of selecting the tab item 662 called "map display" is performed using the operation unit 404, the monitoring screen 600 shown in FIG. 9 is displayed.

[0084] In the example shown in FIG. 9, on the display area 620, a map 630 showing the installation locations of the slave-type smoke sensors 200 connected to the smoke alarm panel 100 selected in the selection area 610 or the independent-type smoke sensors 300 selected in the selection area 610 is displayed. For example, when an operation of pressing the selection button 611 is performed using the operation unit 404, icons 631 to 633 indicating the slave-type smoke sensors 200A to 200C connected to the smoke alarm panel 100A are displayed on the map 630 included in the display area 620. Further, the detection results associated with the identifiers of the slave-type smoke sensors 200A to 200C are read from the storage unit 402 and displayed near the icons 631 to 633, respectively.

[0085] For example, if the smoke concentration measured by the slave-type smoke sensor 200A is 0.01% / m and it is determined that it does not correspond to any of the alarm levels of "alarm 1" to "alarm 3", as shown in FIG. 9, the smoke concentration of 0.01% / m is displayed near the icon 631. The color of the icon 631 is white, indicating that no alarm has occurred.

[0086] Also, when the smoke concentration measured by the slave-type smoke sensor 200B is 0.04% / m and it is determined that it corresponds to the alarm level of "Alarm 1", as shown in FIG. 9, the smoke concentration of 0.04% / m is displayed near the icon 632. The color of the icon 632 becomes red, indicating the occurrence of an alarm.

[0087] Furthermore, when the smoke concentration measured by the slave-type smoke sensor 200C is 0.15% / m and it is determined that it corresponds to the alarm level of "Alarm 3", as shown in FIG. 9, the smoke concentration of 0.15% / m is displayed near the icon 633. The color of the icon 633 becomes red, indicating the occurrence of an alarm.

[0088] In addition, when there is an abnormality in the slave-type smoke sensor 200 or the independent-type smoke sensor 300, the color of the icon indicating the abnormal slave-type smoke sensor 200 or independent-type smoke sensor 300 may be changed to yellow. However, when there is an abnormality in the slave-type smoke sensor 200 or the independent-type smoke sensor 300 and it is determined that it corresponds to at least one of the alarm levels of "Alarm 1" to "Alarm 3" according to the detection result of the slave-type smoke sensor 200 or the independent-type smoke sensor 300, the color of the corresponding icon may be changed to red.

[0089] The display of the map 630 is updated each time new detection results of the slave-type smoke sensors 200A to 200C are stored in the storage unit 402. Therefore, the detection results of the slave-type smoke sensors 200A to 200C are displayed on the map 630 in real time.

[0090] Here, in the example shown in FIG. 9, alarms such as "Alarm 1" and "Alarm 3" are generated according to the smoke concentrations measured by the slave smoke sensors 200B and 200C. In this case, on the monitoring screen 600, the detection results of the slave smoke sensors 200B and 200C are preferentially displayed. For example, even if the operator does not perform an operation of pressing the selection button 611 used for selecting the smoke alarm panel 100A, a map 630 indicating the installation locations of the slave smoke sensors 200 connected to the smoke alarm panel 100A is displayed in the display area 620. Also, as shown in FIG. 9, an additional image 615 indicating the occurrence of an alarm is added to the selection button 611 used for selecting the smoke alarm panel 100A. Further, in the event area 640, event information 643 including the identifier of the slave smoke sensor 200B and the alarm level of "Alarm 1" and event information 641 including the identifier of the slave smoke sensor 200C and the alarm level of "Alarm 3" are displayed.

[0091] FIG. 10 is a sequence chart showing an example of the operation when operating the slave smoke sensor 200 and the independent smoke sensor 300 using the monitoring device 400. The monitoring screen 600 shown in FIGS. 7 to 9 is displayed on the monitoring device 400. The operation area 650 of the monitoring screen 600 accepts operations on the smoke alarm panel 100, the slave smoke sensor 200, and the independent smoke sensor 300.

[0092] The monitoring device 400 has a setting mode mainly used by maintenance personnel and a user mode mainly used by general users. These operation modes can be switched according to, for example, the operator's operation on the monitoring screen 600. In the setting mode, all operations are permitted. On the other hand, in the user mode, the operations are restricted compared to the setting mode. As an example, in the user mode, operations for inspection and maintenance and operations that may cause serious problems due to misoperations are prohibited. The setting mode is an example of the "first operation mode" according to the present invention. The user mode is an example of the "second operation mode" according to the present invention.

[0093] In the setting mode, as shown in FIGS. 7 to 9, on the operation area 650, there are displayed an operation image 651 named "Control", an operation image 652 named "Test", an operation image 653 named "Cut-off", an operation image 654 named "Database", an operation image 655 named "Setting", an operation image 656 named "Recovery", and an operation image 657 named "Sound Stop".

[0094] The operation image 651 named "Control" is used for operations related to the display of device information of the slave type smoke sensor 200 or the independent type smoke sensor 300, the collection and storage of event logs, the execution of environmental monitoring, the execution of airflow normalization, the invalidation of switch operations, the reset of the filter replacement cycle, the deletion of event logs, the collection of software version information, and the display of the time elapsed since the filter was replaced. The operation image 652 named "Test" is used for operations related to the execution of a fire test, an abnormal test, and an opposed test of the slave type smoke sensor 200 or the independent type smoke sensor 300. The operation image 653 named "Cut-off" is used for operations related to the cut-off of fire signals, abnormal signals, and transfer reports. The operation image 654 named "Database" is used for operations related to the change of the database of the smoke alarm panel 100, the slave type smoke sensor 200, or the independent type smoke sensor 300. The operation image 655 named "Setting" is used for operations related to the change of the threshold value used for the determination of the alarm level. The operation image 656 named "Recovery" is used for operations related to the recovery of the smoke alarm panel 100, the slave type smoke sensor 200, or the independent type smoke sensor 300. The operation image 657 named "Sound Stop" is used for operations related to the stop of the warning sound of the smoke alarm panel 100, the slave type smoke sensor 200, or the independent type smoke sensor 300.

[0095] On the one hand, in the user mode, in the operation area 650, an operation image 653 of "cut-off", an operation image 655 of "settings", an operation image 656 of "recovery", and an operation image 657 of "sound stop" are displayed, while operation images 651 of "control", 652 of "test", and 654 of "database", etc. can be made non-displayable. Therefore, in the user mode, for example, operations using the operation images 653 and 655 to 657 can be performed, but operations using the operation images 651, 652, and 654 cannot be performed.

[0096] Returning to FIG. 10, in step S31, the operation unit 404 of the monitoring device 400 receives an operation on at least any one of the smoke alarm panel 100, the slave-type smoke sensor 200, and the independent-type smoke sensor 300 by the operator. In step S32, the transmission means 413 of the monitoring device 400 determines whether the operation received in step S31 targets the independent-type smoke sensor 300.

[0097] If the operation targets the independent-type smoke sensor 300 (the determination in step S32 is YES), in step S33, the transmission means 413 of the monitoring device 400 transmits a signal instructing the execution of processing corresponding to the operation received in step S31 to the independent-type smoke sensor 300 that is the target of the operation. In step S34, when the reception means 314 of the independent-type smoke sensor 300 receives this signal from the monitoring device 400, it executes processing corresponding to this signal.

[0098] On the other hand, if the operation targets the slave-type smoke sensor 200 (the determination in step S32 is NO), in step S35, the transmission means 413 of the monitoring device 400 transmits a signal instructing the execution of processing corresponding to the operation received in step S31 and the identifier of the slave-type smoke sensor 200 that is the target of the operation to the smoke alarm panel 100 to which this slave-type smoke sensor 200 is connected.

[0099] In step S36, when the second receiving means 114 of the smoke alarm panel 100 receives this signal and the identifier from the monitoring device 400, the second transmitting means 115 transmits this signal to the slave smoke sensor 200 to be operated. The slave smoke sensor 200 to be operated is identified by the identifier received together with the signal. In step S37, when the receiving means 213 of the slave smoke sensor 200 receives this signal from the smoke alarm panel 100, the slave smoke sensor 200 executes processing according to this signal.

[0100] The processing executed in step S34 or S37 includes at least any one of the processing related to display of device information, collection and storage of event logs, execution of environmental monitoring, execution of airflow normalization, invalidation of switch operations, reset of filter replacement cycles, deletion of event logs, collection of software version information, display of the time elapsed since the filter was replaced, execution of fire tests, execution of abnormal tests, execution of confrontation tests, interruption of fire signals, interruption of abnormal signals, interruption of transfer reports, change of databases, change of thresholds used for determination of alarm levels, recovery, and stop of warning sounds.

[0101] For example, when a maintenance staff uses the operation unit 404 to select the operation image 652 of "test" shown in FIGS. 7 to 9 and instructs the start of a fire test of the independent smoke sensor 300A, a test start signal for the fire test is transmitted from the monitoring device 400 to the independent smoke sensor 300A. When receiving this test start signal, the independent smoke sensor 300A starts the fire test.

[0102] On the other hand, when a maintenance staff uses the operation unit 404 to select the operation image 652 of "test" shown in FIGS. 7 to 9 and instructs the start of a fire test of the slave smoke sensor 200A, the test start signal for the fire test and the identifier of the slave smoke sensor 200A are transmitted from the monitoring device 400 to the smoke alarm panel 100A. The smoke alarm panel 100A transmits this test start signal to the slave smoke sensor 200A. When receiving this test start signal, the slave smoke sensor 200A starts the fire test.

[0103] According to the embodiments described above, since the monitoring screen 600 displayed on the monitoring device 400 includes the smoke detection results by the slave-type smoke sensor 200 and the smoke detection results by the independent-type smoke sensor 300, the smoke detection results by the slave-type smoke sensor 200 that requires the smoke alarm panel 100 and the smoke detection results by the independent-type smoke sensor 300 that does not require the smoke alarm panel 100 can be collectively monitored using the monitoring device 400. Further, when an alarm is generated according to the smoke detection results by the slave-type smoke sensor 200 or the independent-type smoke sensor 300, the alarm symbols 624 to 626 corresponding to the alarm level are lit and displayed, so that the occurrence of the alarm and the alarm level can be easily recognized.

[0104] In addition, since the monitoring screen 600 displayed on the monitoring device 400 accepts the operations of the slave-type smoke sensor 200 that requires the smoke alarm panel 100 and the independent-type smoke sensor 300 that does not require the smoke alarm panel 100, both the slave-type smoke sensor 200 and the independent-type smoke sensor 300 can be operated using the monitoring device 400. Here, since the monitoring device 400 is used not only by maintenance personnel but also by general users, there is a concern that general users may accidentally perform operations that could cause serious problems. However, since the monitoring device 400 has a setting mode and a user mode, for example, if restrictions are imposed so that operations that could cause serious problems cannot be performed in the user mode, general users can be prevented from accidentally performing such operations.

[0105] Furthermore, the smoke alarm panel 100 receives the smoke detection result from the slave-type smoke sensor 200 according to the communication method supported by the slave-type smoke sensor 200, and transmits this smoke detection result to the monitoring device 400 according to the communication method supported by the monitoring device 400. Also, the independent-type smoke sensor 300 transmits the smoke detection result to the monitoring device 400 according to the communication method supported by the monitoring device 400. Thereby, even when the communication method supported by the slave-type smoke sensor 200 and the communication method supported by the independent-type smoke sensor 300 are different, the monitoring device 400 can obtain both the detection result of the slave-type smoke sensor 200 and the smoke detection result of the independent-type smoke sensor 300. As a result, the smoke detection result by the slave-type smoke sensor 200 and the smoke detection result by the independent-type smoke sensor 300 can be collectively monitored using the monitoring device 400.

[0106] Furthermore, since the plurality of smoke alarm panels 100, the plurality of independent-type smoke sensors 300, and the monitoring device 400 are connected via a general-purpose computer network such as a LAN, for example, when the user already has a general-purpose computer network, the smoke monitoring system 10 can be constructed using this general-purpose computer network.

[0107] Modification The present invention is not limited to the above-described embodiments. The above-described embodiments may be modified and implemented as follows. The embodiments and the modifications may be used in combination or may be switched and used during execution. Similarly, the following modifications may be used in combination or may be switched and used during execution.

[0108] In the above-described embodiments, the detection results of the slave-type smoke sensors 200 connected to the smoke alarm panel 100 may also be displayed on the display unit 106 of the smoke alarm panel 100. For each of the slave-type smoke sensors 200 connected to the smoke alarm panel 100, the information included in the sensor area 621 shown in FIG. 7 may be displayed on the display unit 106, or only a part of the information included in the sensor area 621 may be displayed. Similarly, the detection results of the independent-type smoke sensor 300 may also be displayed on the display unit 306 of the independent-type smoke sensor 300. For the independent-type smoke sensor 300, the information included in the sensor area 621 shown in FIG. 7 may be displayed on the display unit 306, or only a part of the information included in the sensor area 621 may be displayed.

[0109] In the above-described embodiments, when the map display shown in FIG. 9 is performed, when both the slave-type smoke sensor 200 and the independent-type smoke sensor 300 are installed at the same installation location, both the slave-type smoke sensor 200 and the independent-type smoke sensor 300 may be displayed on the map 630. In this case, selection buttons used for selecting the installation location are displayed in the selection area 610. Here, it is assumed that the slave-type smoke sensors 200A to 200C and the independent-type smoke sensor 300A are installed on the first floor. In this case, when the operator performs an operation of selecting the installation location of the first floor using the operation unit 404, icons 631 to 633 indicating the slave-type smoke sensors 200A to 200C and an icon indicating the independent-type smoke sensor 300A are displayed on the map 630.

[0110] In the above-described embodiments, the slave-type smoke sensor 200 and the independent-type smoke sensor 300 do not necessarily have to measure the smoke concentration. For example, the slave-type smoke sensor 200 and the independent-type smoke sensor 300 may detect smoke when the concentration of smoke in the surrounding air becomes equal to or higher than a predetermined concentration, and transmit a smoke detection signal indicating that smoke has been detected.

[0111] In the above-described embodiments, the configuration of the smoke monitoring system 10 is not limited to the above-described examples. The smoke monitoring system 10 may be configured to include one or more of the above-described devices, or may be configured without including some of the devices. Further, the subject having the function of the smoke monitoring system 10 is not limited to the above-described examples. For example, the smoke alarm panel 100 may have a determination means 211 instead of the slave-type smoke sensor 200.

[0112] In the above-described embodiments, the operation of the smoke monitoring system 10 is not limited to the above-described examples. The processing procedure of the smoke monitoring system 10 may be changed in order as long as there is no contradiction. Further, some of the processing procedures of the smoke monitoring system 10 may be omitted.

[0113] Another aspect of the present invention may provide a method having steps of processing performed in at least any one of the smoke monitoring system 10, the smoke alarm panel 100, the slave-type smoke sensor 200, the independent-type smoke sensor 300, and the monitoring device 400. Still another aspect of the present invention may provide a program executed in the smoke alarm panel 100, the slave-type smoke sensor 200, the independent-type smoke sensor 300, or the monitoring device 400. This program may be provided by being stored in a computer-readable recording medium, or may be provided by being downloaded via the Internet or the like.

[0114] In the above-described embodiments, the configuration of the monitoring screen 600 is not limited to the above-described example. The monitoring screen 600 may have any configuration as long as it displays the smoke detection results of the slave type smoke sensor 200 and the independent type smoke sensor 300 and accepts operations on the smoke alarm panel 100, the slave type smoke sensor 200, and the independent type smoke sensor 300. This configuration includes color, arrangement, shape, components, and screen transition. For example, the color of the icons on the monitoring screen 600 shown in FIG. 9 described in the above-described embodiments is an example and is not limited thereto. The color of the icon indicating that no alarm has occurred may be a color other than white. Also, the color of the icon indicating the occurrence of an alarm may be a color other than red as long as it is different from the color indicating that no alarm has occurred. Further, the color of the icon indicating the slave type smoke sensor 200 or the independent type smoke sensor 300 with an abnormality may be a color other than yellow as long as it is different from the color indicating that no alarm has occurred and the color indicating the occurrence of an alarm. Also, the number and arrangement of the operation images on the monitoring screen 600 shown in FIGS. 7 to 9 are examples and are not limited thereto. The monitoring screen 600 may be configured to include operation images different from the operation images 651 to 657, or may be configured without including some of the operation images.

[0115] In the above-described embodiments, the monitoring device 400 may be used as a setting tool. In this case, the monitoring device 400 is individually connected to the device to be set for change among the smoke alarm panel 100, the slave type smoke sensor 200, and the independent type smoke sensor 300 via a third signal line different from the first signal line 500 and the second signal line 510. The third signal line is, for example, a computer network based on the USB (Universal Serial Bus) standard. When connected via the third signal line, the monitoring device 400 and the device to be set for change communicate, for example, according to the USB standard. Also, the monitoring device 400 has a setting tool mode. The setting tool mode is an operation mode mainly used by maintenance personnel, similar to the setting mode. In the setting tool mode, for example, all operations are permitted. When the monitoring device 400 shifts to the setting tool mode, it changes the settings of the device to be set for change according to the operations of the maintenance personnel.

Explanation of Reference Numerals

[0116] 10: Smoke monitoring system, 100: Smoke alarm panel, 111: First receiving means, 112: Output means, 113: First transmitting means, 114: Second receiving means, 115: Second transmitting means, 200: Slave type smoke sensor, 211: Determination means, 212: Transmitting means, 213: Receiving means, 300: Independent type smoke sensor, 311: Determination means, 312: Output means, 313: Transmitting means, 314: Receiving means, 400: Monitoring device, 411: Receiving means, 412: Display control means, 413: Transmitting means

Claims

1. A smoke monitoring system comprising a smoke alarm panel, a first smoke sensor connected to the smoke alarm panel via a first signal line, a second smoke sensor, and a monitoring device connected to the smoke alarm panel and the second smoke sensor via a second signal line, The first smoke sensor detects ambient smoke and transmits the detection result of the smoke to the smoke alarm panel, The smoke alarm panel transmits the detection result of the smoke received from the first smoke sensor to the monitoring device, The second smoke sensor detects ambient smoke and transmits the detection result of the smoke to the monitoring device, The monitoring device displays the detection result of the smoke received from the second smoke sensor and the smoke alarm panel on a display unit, The first smoke sensor determines whether it corresponds to at least any one of a plurality of alarm levels according to the detection result of the smoke, and transmits the determination result of the plurality of alarm levels to the smoke alarm panel, The smoke alarm panel transmits the determination result received from the first smoke sensor to the monitoring device, The second smoke sensor determines whether it corresponds to at least any one of the plurality of alarm levels according to the detection result of the smoke, and transmits the determination result of the plurality of alarm levels to the monitoring device, The monitoring device displays the corresponding alarm level according to the determination result received from the second smoke sensor and the smoke alarm panel Smoke monitoring system.

2. The smoke alarm panel has output means for outputting a transfer signal to an external device, The first smoke sensor does not have the output means, The second smoke sensor has the output means The smoke monitoring system according to Claim 1.

3. On the display unit of the monitoring device, a first display screen for displaying a bar indicating the detection result of the smoke and a second display screen for displaying the detection result of the smoke on a map are switchable by a selection operation The smoke monitoring system according to Claim 1.

Images