CN114667171B - Fire receiver - Google Patents
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- CN114667171B CN114667171B CN202080068725.8A CN202080068725A CN114667171B CN 114667171 B CN114667171 B CN 114667171B CN 202080068725 A CN202080068725 A CN 202080068725A CN 114667171 B CN114667171 B CN 114667171B
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- fire
- gas
- fire extinguishing
- signal
- countdown
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire Alarms (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
When a user remotely instructs a process of stopping countdown using an emergency stop switch, a delay time required for performing the process in a fire receiver is shortened. The fire receiver (10) starts counting down when receiving a sensor signal output from the fire sensor (2) or an activation signal output from the manual release switch (6). When a stop signal output from an emergency stop switch (7) is received before the end of the countdown, the countdown is stopped. When the countdown is finished, the fire extinguishing gas is discharged from the spray head (3). The fire receiver (10) preferentially receives the stop signal output from the emergency stop switch (7) over the sensor signal output from the fire sensor (2).
Description
Technical Field
The present invention relates to a fire receiver.
Background
Conventionally, gas fire extinguishing systems that extinguish a fire by emitting a fire extinguishing gas such as carbon dioxide have been known. For example, patent document 1 describes a gas-based fire extinguishing apparatus having, in each protected area: a fire sensor for sensing a fire; a spray head for emitting a fire extinguishing gas; and an operation box for manually performing the discharge of the fire extinguishing gas or emergency stopping the discharge of the fire extinguishing gas. The gas type fire extinguishing apparatus further has a fire extinguishing gas storage container for storing fire extinguishing gas and a control panel for controlling the gas type fire extinguishing apparatus outside the protection area. The control panel starts counting down when a fire is sensed by a fire sensor in a certain protection area or a fire extinguishing gas discharging switch of an operation box is operated, so that the panel surface and the operation box display the remaining time. Then, when the count-down is completed, the opening valve of the fire extinguishing gas storage container is driven to discharge the fire extinguishing gas from the discharge head in the protected area of the object.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2017-18337
Disclosure of Invention
Problems to be solved by the invention
In the above-described gas fire extinguishing system, even if an emergency stop operation is performed before the remaining time displayed on the operation box becomes zero, the process of stopping the countdown in the control panel may not be as long as the fire extinguishing gas is discharged from the discharge head due to a delay in transmission of a signal or a delay in processing in the control panel.
The present invention has been made in view of the above circumstances, and an object thereof is to shorten a delay time required for a fire receiver to execute a countdown stop process when a user remotely instructs the process using an emergency stop switch.
Means for solving the problems
In order to solve the above problem, a fire receiver according to the present invention is a fire receiver that receives a signal from a terminal device installed in a protected area and performs a process corresponding to the signal, the fire receiver including: a fire sensor disposed in the protection zone and outputting a sensor signal; a manual discharge switch for instructing discharge of fire extinguishing gas from a spray head provided in the protection area, the manual discharge switch outputting a1 st start signal when operated by a user; and an emergency stop switch for emergency stop of discharge of the fire extinguishing gas from the spray head, the emergency stop switch outputting a stop signal when operated by a user, the fire receiver starting countdown upon receiving the sensor signal or the 1 st start signal, stopping the countdown upon receiving the stop signal before the end of the countdown, and discharging the fire extinguishing gas from the spray head upon the end of the countdown, the fire receiver preferentially receiving the stop signal compared to the sensor signal.
In a preferred mode, the fire receiver may preferentially perform processing corresponding to the stop signal over processing corresponding to the sensor signal or the 1 st activation signal.
In a more preferred aspect, the fire receiver may receive the 1 st start signal and the stop signal via a1 st gas fire suppression control device provided in the protected area, the fire receiver may include a storage unit that stores an operation mode corresponding to the 1 st gas fire suppression control device, the fire receiver may start the countdown upon receiving the sensor signal or the 1 st start signal when the operation mode stored in the storage unit is an automatic mode, start the countdown only upon receiving the 1 st start signal when the operation mode stored in the storage unit is a manual mode, and start the countdown only upon receiving the 1 st start signal when an operation mode different from the 1 st gas fire suppression control device is stored in the storage unit corresponding to a2 nd gas fire suppression control device provided in the protected area.
In a more preferred aspect, the terminal device may further include a warning device that warns of the discharge of the fire extinguishing gas from the discharge head when a2 nd activation signal is input, and the 1 st gas fire extinguishing control device may include: an input/output control unit that relays a1 st activation signal output from the manual release switch to the fire receiver and relays a stop signal output from the emergency stop switch to the fire receiver, the input/output control unit receiving a2 nd activation signal output from the fire receiver and activating the warning device; and a display unit that displays a time until the fire extinguishing gas is discharged from the discharge head.
Effects of the invention
According to the present invention, when a user remotely instructs a process of stopping countdown using an emergency stop switch, it is possible to shorten a delay time required for performing the process in a fire receiver.
Drawings
Fig. 1 is a diagram showing an example of the structure of a gas-type fire extinguishing apparatus 1.
Fig. 2 is a front view of the gas fire extinguishing control device 9.
Fig. 3 is a diagram showing the internal structure of the gas fire extinguishing control device 9.
Fig. 4 is a block diagram showing the internal structure of the fire receiver 10.
Fig. 5 is a timing chart showing an example of normal spot polling.
Fig. 6 is a flowchart showing an example of the reception operation.
Fig. 7 is a timing chart showing an example of a fire extinguishing operation for the protected area in which the operation mode is set to the automatic mode.
Fig. 8 is a timing chart showing an example of a fire extinguishing operation for the protected area in which the operation mode is set to the automatic mode.
Fig. 9 is a timing chart showing an example of a fire extinguishing operation for a protection area in which the operation mode is set to the manual mode.
Detailed Description
1. Detailed description of the preferred embodiments
A gas-based fire extinguishing apparatus 1 according to an embodiment of the present invention will be described with reference to the drawings.
1-1. Structure
Fig. 1 is a diagram showing an example of the structure of a gas-based fire extinguishing apparatus 1. The gas fire-extinguishing system 1 shown in the figure is installed in a building B. The building B has rooms R1 to R3, a monitor room R4, and a cylinder room R5 as different shelters. In each of these rooms, a fire sensor 2, a discharge head 3, a horn 4, and a strobe light 5 are provided in each of rooms R1 to R3 as a protected area. Further, a manual discharge switch 6, an emergency stop switch 7, a discharge indicator lamp 8, and a gas fire extinguishing control device 9 are provided outside each of the rooms R1 to R3. A fire receiver 10 is provided in the monitoring room R4. The cylinder chamber R5 is provided with a fire extinguishing gas storage container 11, a selector valve 12, an activation gas container 13, and a relay 14. Hereinafter, each component of the gas fire extinguishing system 1 will be described.
The fire sensor 2 is disposed on the top surface of the protected area and is connected to the fire receiver 10 through a signal line. When sensing a fire, the fire sensor 2 outputs an operation signal as a sensor signal to the fire receiver 10.
The spray head 3 is provided on the top surface of the protected area and is connected to a fire extinguishing gas storage container 11 via a pipe. The ejection head 3 discharges the fire extinguishing gas supplied from the fire extinguishing gas storage container 11.
The horn 4 is an acoustic device for warning the discharge of the fire extinguishing gas from the discharge head 3 into the protected area. The horn 4 is provided on the wall surface of the protected area, and is connected to the gas fire extinguishing control device 9 via a signal line. When an activation signal is input from the gas fire extinguishing control device 9, the horn 4 sounds.
The strobe light 5 is an illumination device for warning the discharge of the fire extinguishing gas from the discharge head 3 into the protected area. The flash lamp 5 is provided on the wall surface of the protected area and is connected to the gas fire extinguishing control device 9 via a signal line. When an activation signal is input from the gas fire extinguishing control device 9, the strobe 5 emits light.
The manual discharge switch 6 is a switch for instructing discharge of the fire extinguishing gas from the ejection head 3 into the protected area. The manual discharge switch 6 is provided on a wall surface near an entrance of the protected area, and is connected to the gas fire extinguishing control device 9 via a signal line. When the user operates the manual discharge switch 6, an activation signal is output to the gas fire extinguishing control device 9.
The emergency stop switch 7 is a switch for emergency stop of discharge of the fire extinguishing gas from the discharge head 3 into the protected area. The emergency stop switch 7 is provided on a wall surface near an entrance of a protected area, and is connected to a gas fire extinguishing control device 9 via a signal line. The emergency stop switch 7 outputs a stop signal to the gas fire extinguishing control device 9 when operated by a user.
The discharge indicator lamp 8 is an indicator for warning the discharge of the fire extinguishing gas from the discharge head 3 into the protected area. The discharge indicator lamp 8 is provided on a wall surface near an entrance of the protected area, and is connected to a gas fire extinguishing control device 9 via a signal line. When an activation signal is input from the gas fire extinguishing control device 9, the discharge display lamp 8 is lit.
The gas fire extinguishing control device 9 is a relay device for relaying signals between a terminal device installed in a protected area and a fire receiver 10 connected by a signal line. Here, the terminal device installed in the protected area includes a horn 4, a strobe 5, a manual release switch 6, an emergency stop switch 7, and a release indicator lamp 8. The horn 4 and the strobe 5 are examples of warning devices. The specific configuration of the gas fire extinguishing control device 9 will be described later.
The fire receiver 10 is a device for controlling the fire extinguishing operation of the gas fire extinguishing system 1. The specific structure of the fire receiver 10 will be described later.
The fire extinguishing gas storage container 11 is a container for storing a fire extinguishing gas such as carbon dioxide or halogen gas. The fire extinguishing gas storage containers 11 are connected to the collective piping through container valves, respectively. The collective piping is branched via a selector valve 12 provided in each guard zone. The branched pipes are connected to the discharge heads 3 provided in different guard areas, respectively.
The activation gas container 13 is a container for storing activation gas for opening the container valve of the fire extinguishing gas storage container 11 and the selector valve 12. The activation gas container 13 is provided for each selector valve 12 (in other words, for each protection zone). The activation gas container 13 is connected to the container valve of the fire extinguishing gas storage container 11 and the corresponding selector valve 12 via pipes. Further, each tank valve solenoid of the activation gas tank 13 is connected to the fire receiver 10 through a signal line via a relay 14. When an activation signal is input from the fire receiver 10 to the relay device 14, the relay device 14 activates the tank valve solenoid to release the activation gas from the activation gas tank 13. The container valve of the fire extinguishing gas storage container 11 and the corresponding selector valve 12 are opened by the pressure of the activating gas. As a result, the fire-extinguishing gas stored in the fire-extinguishing gas storage container 11 passes through the pipe branched by the selector valve 12, and is discharged from the discharge head 3 connected to the pipe.
Next, a specific configuration of the gas fire extinguishing control device 9 will be described.
Fig. 2 is a front view of the gas fire extinguishing control device 9. The gas fire extinguishing control device 9 shown in the figure has a rectangular parallelepiped housing 91, and a state display lamp 921, a countdown display 922, and a mode selection switch 93 are provided on the front surface of the housing 91.
The status display lamp 921 is composed of a power source lamp 9211 that is lit when the power source of the gas fire extinguishing control device 9 is turned on, an automatic mode display lamp 9212 that is lit during automatic mode selection, a manual mode display lamp 9213 that is lit during manual mode selection, a discharge advance notice lamp 9214 that is lit during countdown until fire extinguishing gas is discharged, a discharge lamp 9215 that is lit during fire extinguishing gas discharge, a manual discharge lamp 9216 that is lit when the manual discharge switch 6 is operated, and an emergency stop lamp 9217 that is lit when the emergency stop switch 7 is operated.
The countdown display 922 is a 7-segment display that displays a countdown until the fire extinguishing gas is discharged.
The mode selection switch 93 is a push switch for selecting an operation mode in a protected area in which the gas fire extinguishing control device 9 is installed between an automatic mode and a manual mode. Among the operation modes selected by the mode selection switch 93, the automatic mode is an operation mode in which the fire extinguishing gas is discharged into the protected area when the fire sensor 2 installed in the protected area senses a fire or when the manual discharge switch 6 installed in the protected area is operated by a user. On the other hand, the manual mode is an operation mode for discharging the fire extinguishing gas into the protected area only when the manual discharge switch 6 provided in the protected area is operated by the user. The operation mode selected by using the mode selection switch 93 is associated with the address of the gas fire extinguishing control device 9, and is stored in a below-described guard area setting table TBL2.
Next, fig. 3 is a diagram showing an internal configuration of the gas fire extinguishing control device 9. The gas fire extinguishing control device 9 shown in the figure accommodates a display unit 92, the mode selection switch 93 described above, and an input/output control unit 94 in a casing 91.
The display unit 92 includes the status display lamp 921 and the countdown indicator 922.
The input/output control section 94 has a microcontroller. The input/output control unit 94 is connected to the fire receiver 10 and the display unit 92 via signal lines, receives a signal output from the fire receiver 10, and activates the display unit 92.
The input/output control unit 94 is connected to the mode selection switch 93 via a signal line, and relays a signal output from the mode selection switch 93 to the fire receiver 10.
The input/output control unit 94 is connected to the manual release switch 6 via a signal line, and relays an activation signal output from the manual release switch 6 to the fire receiver 10.
The input/output control unit 94 is connected to the emergency stop switch 7 via a signal line, and relays a stop signal output from the emergency stop switch 7 to the fire receiver 10.
The input/output control unit 94 is connected to the horn 4 via a signal line, receives an activation signal output from the fire receiver 10, and activates the horn 4.
The input/output control unit 94 is connected to the flasher lamp 5 via a signal line, receives an activation signal output from the fire receiver 10, and activates the flasher lamp 5.
The input/output control unit 94 is connected to the discharge indicator lamp 8 via a signal line, receives an activation signal output from the fire receiver 10, and activates the discharge indicator lamp 8.
Next, a specific configuration of the fire receiver 10 will be described.
Fig. 4 is a block diagram showing the internal structure of the fire receiver 10. The fire receiver 10 shown in the figure includes a control unit 101, a display unit 102, a buzzer 103, and a transmission unit 104.
The control unit 101 includes a processor 1011 and a memory 1012 storing a control program P. The processor 1011 starts the control program P stored in the memory 1012 to execute a receiving operation and a fire extinguishing operation, which will be described later. Details of the control section 101 will be described later.
The display unit 102 includes a fire lamp 1021, a discharge advance warning lamp 1022, a discharge lamp 1023, and a countdown display 1024. The fire lamp 1021 is lit when 1 fire sensor 2 is operated or when the manual release switch 6 is operated. When 2 fire sensors 2 are operated, the discharge advance warning lamp 1022 is turned on in a countdown until the fire extinguishing gas is discharged. The discharge lamp 1023 is lit during discharge of the fire extinguishing gas. The countdown display 1024 is a 7-segment display that displays the countdown until the fire extinguishing gas is discharged.
The buzzer 103 is an acoustic device for warning the occurrence of a fire.
The transmission unit 104 is connected to the fire sensor 2, the gas fire-extinguishing control device 9, and the relay 14 via signal lines, and transmits and receives signals to and from these devices.
Next, the control unit 101 will be described in detail.
The memory 1012 of the control unit 101 stores the interlocking control table TBL1 and the guard area setting table TBL2 in addition to the control program P described above.
The interlocking control table TBL1 is a table referred to for specifying a process to be executed in an interlocking manner when an event occurs in the fire receiver 10. The interlocking control table TBL1 corresponds to a process to be executed for each event occurring in the fire receiver 10. For example, the event of receiving the first operation signal from the fire sensor 2 installed in the protected area in which the operation mode is the automatic mode corresponds to a process of an alarm operation on the panel and a process of intermittent sounding of the horn 4. As another example, the process of outputting the start signal to the relay 14 is performed in response to the event of the end of the countdown.
The guard area setting table TBL2 is a table referred to for specifying devices that operate in units of guard areas. The table is referred to for determining the operation mode of the guard area. The protection area setting table TBL2 corresponds to the addresses of the fire sensor 2, the gas fire extinguishing control device 9, and the relay 14, which are linked, for each ID of the protection area. Further, addresses and operation modes of the linked horn 4, strobe 5, manual discharge switch 6, emergency stop switch 7, and discharge indicator lamp 8 are associated with each address of the gas fire extinguishing control device 9. In this table, the ID of the protected area and the operation mode thereof are associated with each other via the address of the gas fire extinguishing control device 9.
The protection zone setting table TBL2 is edited on an information processing apparatus such as a smartphone or a tablet terminal, which is a device different from the fire receiver 10. The edited guard area setting table TBL2 is stored in the memory 1012 of the fire receiver 10 by a storage medium such as an SD card or by wired or wireless communication.
Next, a function realized by the processor 1011 executing the control program P will be described.
The processor 1011 realizes the functions of the reception unit 105, the operation pattern determination unit 106, the process specification unit 107, and the process execution unit 108 by executing the control program P. Hereinafter, each function will be explained.
The receiving section 105 receives signals in a polling/selecting manner from the fire sensor 2 and the gas fire extinguishing control device 9, respectively. Specifically, the fire sensor 2 and the gas fire extinguishing control device 9 are normally polled, and signals are collected from the responding devices.
Here, the normal point polling refers to polling in which the fire sensors 2 and the gas fire extinguishing control devices 9 provided in the building B are divided into a plurality of groups and sequentially performed in units of groups. In each normal polling, a normal response timing is set for each device belonging to the group. The device having the signal to be output outputs the signal and the address at the response timing set for the device itself in response to the polling signal output from the receiving unit 105. In each normal polling, a special response timing is set for 1 group including only all the gas fire extinguishing control devices 9 installed in the building B. The gas fire extinguishing control device 9 having a signal to be output outputs only an address at a response timing set for the group in response to the polling signal output from the receiving unit 105. Here, the reason why the special response timing for the gas fire extinguishing control device 9 is set is that the fire receiver 10 quickly receives the stop signal output from the gas fire extinguishing control device 9. Since the gas fire extinguishing control device 9 sets more response timings per 1 device than the fire sensor 2, the stop signal output from the gas fire extinguishing control device 9 is received by the fire receiver 10 preferentially over the operation signal output from the fire sensor 2.
Fig. 5 is a timing chart showing an example of the normal system polling. This figure shows normal point polling PL1, PL2, and PL3 performed sequentially in units of groups, with the fire sensor 2 and the gas fire extinguishing control device 9 provided in the building B being divided into 3 groups. In the normal point polling PL1, any of the normal response timings T0, T1, T2, and T3 is set for each device belonging to the group. In addition, a special response timing Tg is set for 1 group including only all the gas fire extinguishing control devices 9. The device having the signal to be output responds to the polling signal S1 output from the reception unit 105 at the response timing set in the device itself.
In the normal point polling PL2, any of the normal response timings T4, T5, T6, and T7 is set for each device belonging to the group. In addition, a special response timing Tg is set for 1 group including only all the gas fire extinguishing control devices 9. The device having the signal to be output responds to the polling signal S2 output from the reception unit 105 at the response timing set in the device itself.
In the normal point polling PL3, any of the normal response timings T8, T9, T10, and T11 is set for each device belonging to the group. In addition, a special response timing Tg is set for 1 group including only all the gas fire extinguishing control devices 9. The device having the signal to be output responds to the polling signal S3 output from the reception unit 105 at the response timing set in the device itself.
When a response is made at any of the special response timings of the normal polling, the receiving unit 105 selects the state confirmation of the gas fire extinguishing control device 9 that has made the response, and collects a signal from the device.
The number of normal point polling PLs and the number of normal response timings T of each normal point polling PL shown in fig. 5 are merely examples. These numbers may be changed as appropriate depending on the number of the fire sensors 2 and the gas fire extinguishing control devices 9 provided in the building B. For example, in a building B in which 256 fire sensors 2 and gas fire extinguishing control devices 9 are installed in total, the number of normal point polls PL may be "16", and the number of normal response times T for each normal point poll PL may be "16".
The above description relates to the receiving unit 105.
Next, the operation mode determination unit 106 refers to the zone setting table TBL2 and determines the operation mode set for the zone.
The process identifying unit 107 refers to the interlock control table TBL1 and identifies a process to be executed in conjunction with an event occurring in the fire receiver 10. Then, the information of the determined process is stored in a buffer. The buffer includes 2 types of normal buffer and priority buffer. The priority buffer stores information for stopping the process of the countdown, and the normal buffer stores information for other processes. Here, the reason why the information of the process of stopping the countdown is stored in the priority buffer is to give priority to the execution of the process.
The processing execution unit 108 reads the processing information stored in the normal buffer and the priority buffer, and executes the processing indicated by the read processing information. At this time, the processing execution unit 108 preferentially reads the processing information stored in the priority buffer over the processing information stored in the normal buffer. Specifically, when the process information is stored in the priority buffer, even if the process information is stored in the normal buffer before the process information, the process information stored in the priority buffer is read out first. Therefore, the process execution unit 108 preferentially executes the process corresponding to the stop signal output from the emergency stop switch 7 over the process corresponding to the operation signal output from the fire sensor 2 and the process corresponding to the start signal output from the manual release switch 6.
When executing the process to be controlled in an interlocking manner, the process execution unit 108 refers to the guard area setting table TBL2 and specifies the devices to be interlocked in units of guard areas.
1-2. Actions
Next, the operation of the gas fire extinguishing system 1 will be described. Specifically, the receiving operation performed by the receiving unit 105 of the fire receiver 10 and the fire extinguishing operation performed by the gas fire extinguishing system 1 will be described.
1-2-1. Receiving action
Fig. 6 is a flowchart showing a receiving operation performed by the receiving unit 105 of the fire receiver 10.
In the receiving operation shown in this figure, the receiving unit 105 first sets a variable g indicating the number of the group formed by the fire sensor 2 and the gas fire extinguishing control device 9 installed in the building B to "0" (step Sa 1). Next, normal spot polling is performed on the group indicated by the set group number (step Sa 2). When a response is made at the special response timing of the normal system polling (yes in step Sa 3), the receiving unit 105 selects the state confirmation of the gas fire extinguishing control device 9 that has made the response, and collects a signal from the device (step Sa 4). Then, the process proceeds to step Sa5. On the other hand, if the special response timing is not responded (no in step Sa 3), step Sa5 is performed without performing step Sa 4.
In step Sa5, the reception unit 105 increments the variable g by "1". As a result, when the variable G exceeds the value G indicating the total number of groups, the receiving unit 105 returns to step Sa1 to set the variable G to "0" again. On the other hand, when the variable G does not exceed the value G indicating the total number of groups, the reception unit 105 returns to step Sa2 to perform normal polling on the group indicated by the set group number.
The above description relates to the receiving operation performed by the receiving unit 105 of the fire receiver 10.
1-2-2. Fire extinguishing action
Next, a fire extinguishing operation performed in the gas fire extinguishing system 1 will be described. Specifically, the fire extinguishing operation in the protected area in which the operation mode is set to the automatic mode will be described. The fire extinguishing operation in the protected area in which the operation mode is set to the manual mode will be described.
1-2-2-1. Automatic mode
Fig. 7 and 8 are timing charts showing an example of the fire extinguishing operation for the protected area in which the operation mode is set to the automatic mode.
When a fire occurs in a guard area (hereinafter, referred to as a "guard area P1" in the description of the operation) in which the operation mode is set to the automatic mode, and the fire sensor 2 provided in the guard area P1 senses the fire, the fire sensor 2 outputs an operation signal to the fire receiver 10. The controller 101 of the fire receiver 10 that has input the operation signal turns on the fire lamp 1021 of the fire receiver 10 and sounds the buzzer 103 (step Sb 2) (step Sb 1). As a result, the monitor staying in the monitoring room R4 can recognize that the fire is sensed in the protected area P1.
Further, the control unit 101 outputs an activation signal to the gas fire extinguishing control device 9 provided in the protected area P1 in order to intermittently sound the horn 4 provided in the protected area P1 (step Sb 3). Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 intermittently sounds the horn 4 (step Sb 4). As a result, the person staying in the protected area P1 can recognize that the fire is sensed in the protected area P1.
When the other fire sensor 2 senses a fire in the protected area P1, the other fire sensor 2 outputs an operation signal to the fire receiver 10. The control unit 101 of the fire receiver 10 that has received the operation signal determines that the countdown condition is satisfied based on the operation signals received from the 2 different fire sensors 2 (step Sb 5). Then, a countdown (for example, 60 seconds) is started until the fire extinguishing gas is discharged into the protected area P1, and the countdown is displayed on the countdown display 1024 (step Sb 6). Further, the control unit 101 turns on the discharge warning lamp 1022 of the fire receiver 10 (step Sb 7). As a result, the monitoring person staying in the monitoring room R4 can know the discharge of the fire extinguishing gas into the protected area P1 and the number of seconds until the fire extinguishing gas is discharged.
Further, the control unit 101 outputs an activation signal to the gas fire extinguishing control device 9 in order to blink the discharge pilot lamp 9214 in the gas fire extinguishing control device 9 installed in the protected area P1 and to cause the countdown indicator 922 to display the countdown (step Sb 8). Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 controls the display unit 92. The countdown indicator 922 of the display unit 92 displays the countdown until the fire extinguishing gas is discharged into the protected area P1 (step Sb 9), and the discharge pilot lamp 9214 blinks (step Sb 10). As a result, a person who sees the display surface of the gas fire extinguishing control device 9 can know the number of seconds until the fire extinguishing gas is discharged into the protected area P1 and the fire extinguishing gas is discharged.
In addition, the remaining time displayed on the countdown display 922 may also be earlier than the remaining time displayed on the countdown display 1024 of the fire receiver 10. This makes it possible to more reliably prevent the fire extinguishing gas from being discharged from the discharge head 3 even when the emergency stop switch 7 is operated before the countdown displayed on the countdown display 922 is completed.
The control unit 101 of the fire receiver 10 outputs an activation signal to the gas fire extinguishing control device 9 installed in the protected area P1 in order to intermittently sound the horn 4 installed in the protected area P1 at a shorter cycle (step Sb 11). Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 intermittently sounds the horn 4 at a shorter cycle (step Sb 12). As a result, the person staying in the protected area P1 can know that the fire extinguishing gas is discharged into the protected area P1.
Then, when the countdown of the control unit 101 of the fire receiver 10 is finished (step Sb 13), the control unit 101 determines that the gas release condition is satisfied. Then, in order to discharge the fire extinguishing gas into the protected area P1, an activation signal is output to the relay 14 that controls the tank valve solenoid of the activation gas tank 13 provided for the protected area P1 (step Sb 14). When the activation signal is input to the relay 14, the relay 14 activates the container valve solenoid to release the activation gas from the activation gas container 13. Then, the container valve of the fire extinguishing gas storage container 11 and the selector valve 12 provided for the protection area P1 are opened by the gas pressure of the activating gas. As a result, the fire-extinguishing gas stored in the fire-extinguishing gas storage container 11 is discharged from the discharge head 3 provided in the protected area P1 through the pipe branched by the selector valve 12.
When the selector valve 12 is opened, a pressure switch, not shown, operates to output an operation signal to the fire receiver 10. The controller 101 of the fire receiver 10 that receives the operation signal (step Sb 15) turns off the discharge advance warning lamp 9214 of the fire receiver 10 and turns on the discharge lamp 1023 instead (step Sb 16). As a result, the monitoring person staying in the monitoring room R4 can know that the fire extinguishing gas is discharged into the protected area P1.
Further, the controller 101 outputs an activation signal to the gas fire extinguishing controller 9 in order to turn on the discharge lamp 9215 in the gas fire extinguishing controller 9 installed in the protected area P1 (step Sb 17). Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 controls the display unit 92. The discharge advance notice lamp 9214 in the display unit 92 is turned off, and the discharge lamp 9215 is turned on instead (step Sb 18). As a result, a person who sees the display surface of the gas fire extinguishing control device 9 can know that the fire extinguishing gas is discharged into the protected area P1.
The control unit 101 of the fire receiver 10 outputs an activation signal to the gas fire extinguishing control device 9 installed in the protected area P1 in order to continuously sound the horn 4 installed in the protected area P1 (step Sb 19). Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 causes the horn 4 to continuously sound (step Sb 20). As a result, the person staying in the protected area P1 can know that the fire extinguishing gas is discharged into the protected area P1.
The control unit 101 of the fire receiver 10 outputs an activation signal to the gas fire extinguishing control device 9 installed in the protected area P1 in order to cause the strobe 5 installed in the protected area P1 to emit light (step Sb 21). Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 causes the strobe 5 to emit light (step Sb 22). As a result, the person staying in the protected area P1 can visually recognize that the fire extinguishing gas is discharged into the protected area P1.
The control unit 101 of the fire receiver 10 outputs an activation signal to the gas fire extinguishing control device 9 installed in the protected area P1 in order to turn on the discharge indication lamp 8 installed in the protected area P1 (step Sb 23). Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 turns on the discharge indicator lamp 8 (step Sb 24). As a result, the person located near the entrance/exit of the protected area P1 can know that the fire extinguishing gas is discharged into the protected area P1.
The above description relates to the fire extinguishing operation for the protected area in which the operation mode is set to the automatic mode.
In the fire extinguishing operation described above, when a person staying in the protected area P1 notices a fire and operates the manual release switch 6 provided in the protected area P1, the manual release switch 6 outputs an activation signal. The activation signal is relayed by the input/output control unit 94 of the gas fire extinguishing control device 9 installed in the protected area P1 and is input to the fire receiver 10. The control unit 101 of the fire receiver 10 that has input the activation signal executes the steps after step Sb6 without waiting for the output of the operation signal from the other fire sensor 2. In addition, in order to turn on the manual discharge lamp 9216 in the gas fire extinguishing control device 9 installed in the protected area P1, an activation signal is output to the gas fire extinguishing control device 9. Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 turns on the manual discharge lamp 9216 of the display unit 92.
In the fire extinguishing operation described above, after the countdown is started, a person staying in the protected area P1 confirms a non-fire, and when the emergency stop switch 7 provided in the protected area P1 is operated, the emergency stop switch 7 outputs a stop signal. The stop signal is relayed by the input/output control unit 94 of the gas fire extinguishing control device 9 installed in the protected area P1 and is input to the fire receiver 10. The control unit 101 of the fire receiver 10 that has input the stop signal stops the countdown. In addition, in the gas fire extinguishing control device 9 installed in the protected area P1, an activation signal is output to the gas fire extinguishing control device 9 in order to stop the countdown displayed on the countdown display 922 and to turn on the emergency stop lamp 9217. Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 controls the display unit 92. The countdown indicator 922 of the display unit 92 stops counting down, and the emergency stop lamp 9217 is turned on.
1-2-2-2. Manual mode
Fig. 9 is a timing chart showing an example of a fire extinguishing operation for the protected area in which the operation mode is set to the manual mode.
When a fire breaks out in a protection area (hereinafter, referred to as "protection area P2" in the description of the operation) in which the operation mode is set to the manual mode, and a person who notices the fire operates the manual release switch 6 provided in the protection area P2, the manual release switch 6 outputs an activation signal (step Sc 1). The activation signal is relayed by the input/output control unit 94 of the gas fire extinguishing control device 9 installed in the protected area P2 and is input to the fire receiver 10 (step Sc 2). The control unit 101 of the fire receiver 10 that has input the activation signal turns on the fire lamp 1021 of the fire receiver 10 and continuously sounds the buzzer 103 (step Sc 3).
Further, the control unit 101 determines that the countdown condition is satisfied when the manual release switch 6 is operated. Then, a countdown (for example, 25 seconds) is started until the fire extinguishing gas is discharged into the protected area P2, and the countdown is displayed on the countdown display 1024 (step Sc 4). Further, the control unit 101 turns on the discharge warning lamp 1022 of the fire receiver 10 (step Sc 5).
Further, the control unit 101 outputs an activation signal to the gas fire extinguishing control device 9 in order to blink the discharge advance warning lamp 9214 and turn on the manual discharge lamp 9216 in the gas fire extinguishing control device 9 installed in the protected area P2, and to cause the countdown indicator 922 to display the countdown described above (step Sc 6). Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 controls the display unit 92. The countdown indicator 922 of the display unit 92 displays the countdown until the fire extinguishing gas is discharged into the protected area P2 (step Sc 7), the discharge pilot lamp 9214 blinks, and the manual discharge lamp 9216 is turned on (step Sc 8).
In addition, the remaining time displayed on the countdown display 922 may also be earlier than the remaining time displayed on the countdown display 1024 of the fire receiver 10.
The control unit 101 of the fire receiver 10 outputs an activation signal to the gas fire extinguishing control device 9 installed in the protected area P2 in order to intermittently sound the horn 4 installed in the protected area P2 at a short cycle (step Sc 9). Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 causes the horn 4 to intermittently sound at a short cycle (step Sc 10).
Then, when the countdown of the control unit 101 of the fire receiver 10 is finished (step Sc 11), the control unit 101 determines that the gas release condition is satisfied. Then, in order to discharge the fire extinguishing gas into the protected area P2, an activation signal is output to the relay 14 that controls the tank valve solenoid of the activation gas tank 13 provided for the protected area P2 (step Sc 12). When the activation signal is input to the relay 14, the relay 14 activates the container valve solenoid to release the activation gas from the activation gas container 13. Then, the container valve of the fire extinguishing gas storage container 11 and the selector valve 12 provided for the protected area P2 are opened by the gas pressure of the activating gas. As a result, the fire-extinguishing gas stored in the fire-extinguishing gas storage container 11 is discharged from the discharge head 3 provided in the protected area P2 through the pipe branched by the selector valve 12.
When the selector valve 12 is opened, a pressure switch, not shown, operates to output an operation signal to the fire receiver 10. The control unit 101 of the fire receiver 10 that receives the operation signal (step Sc 13) turns off the discharge advance warning lamp 9214 of the fire receiver 10 and turns on the discharge lamp 1023 instead (step Sc 14).
Further, the control unit 101 outputs an activation signal to the gas fire extinguishing control device 9 in order to turn on the discharge lamp 9215 in the gas fire extinguishing control device 9 installed in the protected area P2 (step Sc 15). Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 controls the display unit 92. The discharge advance warning lamp 9214 in the display portion 92 is turned off, and instead, the discharge lamp 9215 is turned on (step Sc 16).
The control unit 101 of the fire receiver 10 outputs an activation signal to the gas fire extinguishing control device 9 provided in the protected area P2 in order to continuously sound the horn 4 provided in the protected area P2 (step Sc 17). Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 causes the horn 4 to continuously sound (step Sc 18).
The control unit 101 of the fire receiver 10 outputs an activation signal to the gas fire extinguishing control device 9 installed in the protected area P2 in order to cause the strobe 5 installed in the protected area P2 to emit light (step Sc 19). Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 causes the strobe 5 to emit light (step Sc 20).
The control unit 101 of the fire receiver 10 outputs an activation signal to the gas fire extinguishing control device 9 installed in the protected area P2 in order to turn on the discharge indicator lamp 8 installed in the protected area P2 (step Sc 21). Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 turns on the discharge indicator lamp 8 (step Sc 22).
The above description relates to the fire extinguishing operation for the protected area in which the operation mode is set to the manual mode.
As described above, the fire receiver 10 of the above-described embodiment preferentially receives the stop signal output from the emergency stop switch 7 over the operation signal output from the fire sensor 2. As described above, the fire receiver 10 preferentially stops the countdown process to be executed in conjunction with the reception of the stop signal. Therefore, the delay time required from when the emergency stop switch 7 is operated to when the fire receiver 10 stops counting down is shortened. As a result, it is possible to prevent the fire extinguishing gas from being discharged from the discharge head 3 even if the emergency stop switch 7 is operated before the countdown displayed by the gas fire extinguishing control device 9 is ended.
The gas fire extinguishing control device 9 according to the embodiment described above includes the input/output control unit 94, and the input/output control unit 94 relays signals between the terminal devices and the fire receiver 10 installed in the same protected area. Each terminal device is connected to the gas fire extinguishing control device 9 via a signal line, and transmits and receives signals to and from the fire receiver 10 via the gas fire extinguishing control device 9. Therefore, the wiring work is easier than in the case where each terminal device is directly connected to the fire receiver 10.
In the gas fire extinguishing system described in patent document 1, the operation boxes, the discharge indicator lamps, and the speakers provided in the individual protection areas are connected to the control panel through different signal lines. Therefore, at least 3 repeaters must be prepared for each zone and each of the repeaters must be connected to the control panel by a signal line, which complicates the wiring operation. In contrast, the above embodiment facilitates the wiring work between the terminal device of the gas fire extinguishing system and the fire receiver.
The gas fire extinguishing control device 9 of the present embodiment may also be expressed as follows.
A relay device for relaying a signal between a terminal device installed in a protected area and a fire receiver, the terminal device comprising: a manual discharge switch for instructing discharge of fire extinguishing gas from a spray head provided in the protection area, the manual discharge switch outputting a1 st start signal when operated by a user; an emergency stop switch for emergency stopping the discharge of the fire extinguishing gas from the spray head, the emergency stop switch outputting a stop signal when operated by a user; and a warning device that warns the discharge of the fire extinguishing gas from the discharge head when a2 nd activation signal is input, the relay device including: an input/output control unit that relays a1 st activation signal output from the manual release switch to the fire receiver and relays a stop signal output from the emergency stop switch to the fire receiver, the input/output control unit receiving a2 nd activation signal output from the fire receiver and activating the warning device; and a display unit that displays the time until the fire extinguishing gas is discharged from the discharge head.
2. Modification example
The above-described embodiment may be modified as follows. The modifications described below may be combined with each other.
2-1 modification 1
As the acoustic device installed in the protected area, an alarm bell may be used instead of the horn 4.
2-2 modification 2
In the building B, 1 gas fire extinguishing control device 9 is provided for 1 protected area. However, 2 gas fire extinguishing control devices 9 may be provided for a protected area having 2 entrances and exits. In this case, the address of 2 gas fire extinguishing control devices 9 is stored in the protection zone setting table TBL2 of the fire receiver 10 in association with the ID of the protection zone. The operation mode is associated with each address of 2 gas fire extinguishing control devices 9. That is, 2 action patterns are associated with the ID of the guard zone. When these 2 operation modes are common, the operation mode of the guard area can be uniquely determined. However, when these 2 operation modes are different, it is impossible to determine whether the protected area is the automatic mode or the manual mode. As a result, the fire extinguishing operation of the fire receiver 10 is stopped. Therefore, in order to avoid such a situation, the operation mode determination unit 106 of the fire receiver 10 may uniformly determine the manual mode when the 2 operation modes corresponding to the protection zones are different.
2-3 modification 3
In the fire extinguishing operation performed in the manual mode, after the countdown is started, the person staying in the protected area P2 may confirm that there is no fire, and when the emergency stop switch 7 provided in the protected area P2 is operated, the emergency stop switch 7 may output a stop signal. The stop signal is relayed by the input/output control unit 94 of the gas fire extinguishing control device 9 installed in the protected area P2 and is input to the fire receiver 10. The control unit 101 of the fire receiver 10 that has input the stop signal stops the countdown. In addition, in the gas fire extinguishing control device 9 installed in the protected area P2, an activation signal is output to the gas fire extinguishing control device 9 in order to stop the countdown displayed on the countdown display 922 and to turn on the emergency stop lamp 9217. Upon receiving the activation signal, the input/output control unit 94 of the gas fire extinguishing control device 9 controls the display unit 92. The countdown indicator 922 of the display unit 92 stops counting down, and the emergency stop lamp 9217 is turned on.
2-4 modification 4
An analog fire sensor may be used instead of the fire sensor 2. In this case, the fire receiver 10 determines the occurrence of a fire instead of the fire sensor 2. Specifically, the fire receiver 10 periodically receives an analog value (for example, a value indicating smoke density) as a sensor signal from the analog fire sensor, compares the received analog value with a predetermined threshold value, and determines that a fire has occurred when the received analog value exceeds the predetermined threshold value.
Description of the reference symbols
1: gas-based fire extinguishing equipment; 2: a fire sensor; 3: an injector head; 4: a horn; 5: a flash lamp; 6: a manual play out switch; 7: an emergency stop switch; 8: emitting a display lamp; 9: a gas fire-extinguishing control device; 10: a fire receiver; 11: a fire suppressing gas storage container; 12: a selector valve; 13: starting the gas container; 14: a repeater; 91: a housing; 92: a display unit; 93: a mode selection switch; 94: an input/output control unit; 101: a control unit; 102: a display unit; 103: a buzzer; 104: a conveying section; 105: a receiving section; 106: an operation mode determination unit; 107: a process determination section; 108: a processing execution unit; 921: a status display light; 922: a countdown display; 1011: a processor; 1012: a memory; 1021: a fire light; 1022: emitting a warning light; 1023: emitting a light; 1024: a countdown display; 9211: a power supply lamp; 9212: an automatic mode display light; 9213: a manual mode display lamp; 9214: emitting a warning light; 9215: emitting a light; 9216: manually discharging the lamp; 9217: an emergency stop light; b: a building; p: a control program; PL1, PL2, PL3: normal point polling; r1 to R3: a room; r4: a monitoring room; r5: a cylinder chamber; s1, S2, S3: a polling signal; t0 to T11: a general response opportunity; TBL1: a linkage control table; TBL2: a protection zone setting table; tg: particularly in response to timing.
Claims (4)
1. A fire receiver which receives a signal from a terminal device installed in a protected area and performs processing corresponding to the signal,
the terminal device includes:
a fire sensor disposed in the protection zone and outputting a sensor signal;
a manual discharge switch for instructing discharge of fire extinguishing gas from a spray head provided in the protection area, the manual discharge switch outputting a1 st start signal when operated by a user; and
an emergency stop switch for emergency stopping the discharge of the fire extinguishing gas from the spray head, the emergency stop switch outputting a stop signal when operated by a user,
the fire receiver starts counting down after receiving the sensor signal or the 1 st starting signal,
stopping the countdown when the stop signal is received before the countdown is finished,
discharging fire suppressing gas from the spray head when the countdown is finished,
the fire receiver preferentially receives the stop signal compared to the sensor signal.
2. The fire receiver of claim 1,
the fire receiver preferentially performs processing corresponding to the stop signal, compared to processing corresponding to the sensor signal or the 1 st start signal.
3. A fire receiver according to claim 1 or 2,
the fire receiver receives the 1 st start signal and the stop signal via a1 st gas fire extinguishing control device provided in the protected area,
the fire receiver has a storage unit for storing an operation mode corresponding to the 1 st gas fire extinguishing control device,
the fire receiver starts the countdown upon receiving the sensor signal or the 1 st activation signal when the operation mode stored in the storage unit is the automatic mode, and starts the countdown only upon receiving the 1 st activation signal when the operation mode stored in the storage unit is the manual mode,
when an operation mode different from that of the 1 st gas fire suppression control device is stored in the storage unit in correspondence with the 2 nd gas fire suppression control device provided in the protected area, the countdown is started only when the 1 st activation signal is received.
4. The fire receiver of claim 3,
the terminal device further comprises a warning device which warns of the discharge of fire extinguishing gas from the spray head when a2 nd activation signal is inputted,
the 1 st gas fire extinguishing control device comprises:
an input/output control unit that relays a1 st activation signal output from the manual release switch to the fire receiver and relays a stop signal output from the emergency stop switch to the fire receiver, the input/output control unit receiving a2 nd activation signal output from the fire receiver and activating the warning device; and
a display part which displays the time until the fire extinguishing gas is discharged from the spray head.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-184136 | 2019-10-04 | ||
| JP2019184136A JP7064476B2 (en) | 2019-10-04 | 2019-10-04 | Relay device |
| JP2019185342A JP6830143B1 (en) | 2019-10-08 | 2019-10-08 | Fire receiver |
| JP2019-185342 | 2019-10-08 | ||
| PCT/JP2020/037264 WO2021066051A1 (en) | 2019-10-04 | 2020-09-30 | Fire alarm receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114667171A CN114667171A (en) | 2022-06-24 |
| CN114667171B true CN114667171B (en) | 2022-12-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080068725.8A Active CN114667171B (en) | 2019-10-04 | 2020-09-30 | Fire receiver |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN114667171B (en) |
| TW (1) | TW202120147A (en) |
| WO (1) | WO2021066051A1 (en) |
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- 2020-09-30 WO PCT/JP2020/037264 patent/WO2021066051A1/en active Application Filing
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- 2020-09-30 CN CN202080068725.8A patent/CN114667171B/en active Active
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| JP2002360726A (en) * | 2001-06-11 | 2002-12-17 | Yamato Protec Co | Carbon dioxide fire extinguishing equipment |
| JP2010178877A (en) * | 2009-02-05 | 2010-08-19 | Hochiki Corp | Home fire extinguisher |
| CN201612961U (en) * | 2009-11-23 | 2010-10-27 | 华锐风电科技(集团)股份有限公司 | Fire extinguishing plant and fire extinguishing system for wind power generator cabin |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2021066051A1 (en) | 2021-04-08 |
| CN114667171A (en) | 2022-06-24 |
| TW202120147A (en) | 2021-06-01 |
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