JPH06103474A - Fire alarm equipment - Google Patents

Abstract

PURPOSE:To immediately control a connected equipment to be controlled without receiving a control instruction from a receiver by controlling the connected equipment to be controlled when it is discriminated that fire information judged as fire is included in the fire information. CONSTITUTION:When the address signal of a related monitoring terminal is received, whether or not the fire information is present within the received signal is discriminated and at the same time, when the fire information 15 present, whether or not a fire signal or a physical quantity signal judged as the fire is present within the fire information, is discriminated. Then, when the fire information is sent from the related monitoring terminal and it is discriminated that the fire information judged as the fire is included in the fire information, a microprocessor MPU operates a control circuit CC to control the equipment M to be controlled such as making a fire door closed and making a smoke ejecting port open, etc. Further, in order to send back the state signals of the equipment M to be controlled at the time of calling from the receiver, they are read from a state signal reception circuit RC and updated and recorded in a RAM 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire alarm system, and more particularly to a plurality of relays, analog fire detectors, etc. in which a fire detector is connected to a receiver via a common signal line. Of the fire alarm system and a plurality of control repeaters to which controlled devices such as a fire door closing device and a smoke exhaust opening device are connected.

[0002]

2. Description of the Related Art Conventionally, a plurality of monitoring terminals such as a repeater and an analog type fire detector in which a fire detector is connected to a receiver through a common signal line, a fire door closing device, and smoke exhaust In a fire alarm facility in which multiple control repeaters connected with controlled devices such as mouth opening devices are connected together, the receiver sequentially calls and polls multiple monitoring terminals and control repeaters. Fire signals that are fire information and / or physical quantity signals of fire phenomena are collected from the monitoring terminal, and fire control door closure devices, fire prevention damper opening and closing devices, smoke exhaust opening and closing devices, etc. are controlled devices from the control relay. The state information indicating the open / closed state of is collected.

When the fire information or the physical quantity signal indicating the occurrence of a fire is included in the fire information collected from the monitoring terminal, the receiver is associated with the monitoring terminal which has sent out the fire signal or the physical quantity signal judged to be a fire. When a certain control relay is polled, a control command is sent to the control relay. The control repeater receiving this control command controls the connected controlled device according to the control command.

[0004]

As described above, in the conventional fire alarm system of this type, a fire door, a fire protection device,
The receiver is used to control the controlled devices such as the smoke exhausting device, the evacuation guiding device, and the emergency door. That is,
When the receiver judges that there is a fire based on the fire information collected from the monitoring terminal, the receiver sends a control command to the control relay related to the fire occurrence point.

For this reason, the receiver must collect fire information from the monitoring terminal, make a fire decision from the collected fire information, display the result, and control the related controlled equipment. When the load is heavy and there is no fire, even if the polling speed of the monitoring terminal or control repeater is high, the judgment process, display process,
Further, there is a problem that the control processing takes time and the polling speed becomes slow. Therefore, there is a problem that the number of monitoring terminals and control repeaters that can be connected to the receiver is limited.

[0006]

SUMMARY OF THE INVENTION In view of the above points, the present invention is a fire alarm which can reduce the load on the receiver in the event of a fire and increase the number of monitoring terminals and control repeaters that can be connected to the receiver. For the purpose of equipment, multiple monitoring terminals that monitor fire and send fire information about the fire to the receiver, and multiple control repeaters that control the controlled equipment use common signal lines. Connected via the receiver, the receiver polls the plurality of monitoring terminals to collect fire information, sends a control command of the controlled device to the control relay, and the control relay transmits from the receiver. In the fire alarm facility for controlling a controlled device when a control command is received, the control repeater stores, in the control repeater, addresses of one or a plurality of monitoring terminals related to itself. And; to the signal line Receiving signal determining means for receiving a received signal and determining whether the received signal is a signal transmitted from a monitoring terminal whose address is stored in the storing means; and the receiving signal determining means stores in the storing means. Fire discriminating means for discriminating whether or not there is fire information which is judged to be fire in the received signal when it is discriminated that a signal sent from the monitoring terminal being operated is received; And a control means for controlling the connected controlled device at the time of doing so.

[0007]

In the control repeater, the storage means for storing the address of one or a plurality of monitoring terminals associated with itself and the signal sent from the associated monitoring terminal stored in the storage means are received from the signal line. Reception signal determining means for determining whether or not
A fire discriminating means for discriminating whether or not there is fire information judged to be a fire in the signal received from the related monitoring terminal, and a control means for controlling the controlled device when the fire discriminating means judges a fire are provided. Therefore, the control repeater automatically controls the controlled device based on the fire information without receiving a control command from the receiver when the relevant monitoring terminal sends out fire information that is judged to be a fire. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to one embodiment shown in FIGS.

In FIG. 1, 10 is a receiver, 21, 2
2, 23, ... are control relays, and M is a control relay 2
1, 22 ... Connected to the controlled equipment, for example, a fire door closing device, 31, 32, 33, .. are monitoring relays, and DE are connected to monitoring relays 31, 32 ,. Ordinary fire detector that sends out a fire signal when a fire phenomenon exceeding a predetermined level is detected, 41, 42, ... Detects the physical quantity of the fire phenomenon such as heat, smoke, gas, etc. and converts it into a digital signal. It is an analog fire detector that is sent out.
Further, a district bell (not shown) is also connected to the monitoring repeaters 31, 32, .... In addition, the normal type fire detector D
The monitoring relays 31, 32, ... To which E is connected, and the analog fire detectors 41, 42, ... Are examples of monitoring terminals.

FIG. 2 is a block diagram of an embodiment of the control relay 21. Note that the other control repeaters 22, 23,
.. is the same as that of FIG.

In the control repeater 21, the MPU is a microprocessor, the ROM1 to ROM3 are read-only memories, the ROM1 is a program storing means shown in the flowchart of FIG. 3, and the ROM2 is, for example, EP-ROM or E.
The storage means, which is composed of an EP-ROM or the like and stores its own address, the ROM 3 is, for example, an EP-ROM or an EEP.
A storage means that is composed of a ROM or the like and stores the address of the monitoring terminal associated with itself, for example, the addresses of the monitoring repeaters 31 and 32 and the analog fire detector 41.

RAM1 and RAM2 are random access memories, RAM1 is a work area, and RAM2 is a storage area for storing the status information of the controlled device M received by the status signal receiving circuit RC.

TRX is a transmission / reception circuit having a parallel-serial converter, a transmission circuit, a reception circuit, a serial-parallel converter, etc., CC is a control circuit having, for example, a timer for controlling the controlled device MG, and RC is a control circuit. A state signal receiving circuit that receives state information of an open state signal and a closed state signal from the control device M, IF1 is an interface for the transmission / reception circuit TRX, IF2 is an interface for the control circuit CC, and IF3 is an interface for the state signal receiving circuit RC. .

IF4 is an interface for connecting a writer such as a personal computer when writing its own address or the address of the associated monitoring terminal in the ROM2 or ROM3, and CN is a connector for connecting the writer.

In this embodiment, the self-address and the address of the related monitoring terminal are set as EP-ROM and EEP-R.
Although it is stored in the ROM such as the OM, the RAM with the backup power supply may be used.
A dip switch may be used instead of the OM or RAM to set the self-address or the address of the related monitoring terminal.

Next, the operation of this embodiment will be described with reference to FIG.

The receiver 10 includes control repeaters 21, 22,
.., the monitoring repeaters 31, 32, ..., The analog fire detectors 41, 42 ,.

When called by the receiver 10 (Y in S4 and S6), the control repeater 21 reads out the status information from the RAM 2, adds the self address to the status information, and sends it to the receiver 10 (S8). . Next, it is determined whether or not the command received from the receiver 10 is a control command, and if it is a control command (Y of S10), the control circuit CC is operated according to the content of the control command, for example, a recovery command. The controlled device M is controlled (S12).

After that, the status signal of the controlled device M is read as status information from the status signal receiving circuit RC, and this status information is updated and stored in the RAM 2 (S14). The same applies to the other control repeaters 22, 23, ....

Further, a monitoring repeater 31 which is a monitoring terminal
Is called from the receiver 10, and when receiving a return command, the signal state of the connected fire detector DE, that is, the presence or absence of a fire signal, is read as fire information, and the receiver adds the self address to this fire information. Return to 10.
Similarly, the analog fire detector 41, which is a monitoring terminal,
When called from the receiver 10 and receiving a return command, the physical quantity of the fire phenomenon detected from a built-in fire phenomenon detection unit (not shown) is read as fire information, the self address is added to this fire information, and the fire information is returned to the receiver 10. . The same applies to the other monitoring repeaters 32, 33, ... And the analog fire detectors 42, 43 ,.

By the way, the control repeaters 21, 22, ...
When the signal is received from the signal line 50 (Y in S4), it determines whether or not the self address stored in the ROM 2 which is the calling signal is received (S6). As a result, when the self address is received (Y in S6), the signal processing is performed as described above.

However, when the self address is not received (N in S6), the address of the related monitoring terminal stored in the ROM 3 in the received signal, that is, in the case of the control repeater 21, it is used for monitoring. It is determined whether or not there is an address signal from any one of the relays 31, 32 and the analog fire detector 41 (S20). If the address signal of the related monitoring terminal is received (Y of S20), it is determined whether or not there is fire information in the received signal, and if there is fire information, the fire signal or fire is included in the fire information. It is determined whether there is a physical quantity signal that is determined to be (S22).

As a result of this determination, when it is found that the fire information is transmitted from the related monitoring terminal and the information determined to be a fire is included in the fire information (Y in S22), the microprocessor MPU causes the control circuit to operate. The CC is operated to control the controlled device M such as closing the fire door and opening the smoke exhaust port (S24). And the controlled device M
In order to send back the status signal of R at the time of calling from the receiver 10 (S8), read from the status signal receiving circuit RC
The data is updated and stored in AM2 (S26).

Next, the operation of the control repeater in the case where the monitoring terminal receives the call from the receiver and returns the fire information without sending the self-address, FIG.
Will be described with reference to. Note that FIG. 4 shows only different parts in FIG. 3, and steps S20 to S2 in FIG.
2 are replaced by FIG.

In step S6, it is determined that the received signal does not have its own address (N in S6), and R is added in the received signal.
When it is determined that the related address stored in the OM3 is included (Y in S20), it is determined whether or not fire information is included in the received signal (S30).

If the fire signal is not included in the received signal (N in S30), the received signal is a signal from the receiver 10, and the built-in timer (not shown) is turned on. The operating time of this timer is set to a time required for the monitoring terminal to receive the calling signal from the receiver and complete the return of the fire information, for example, 10 ms. Then, when the fire information returned from the monitoring terminal is received before the operation of this timer is completed (N of S32, Y of S30), is there a fire signal or a physical quantity signal judged as fire in the fire information? It is determined (S22). As a result of this determination, if there is a signal determined to be a fire in the fire information (Y of S22), the connected controlled device M is controlled (S24).

[0027]

According to the present invention, a monitoring terminal such as a monitoring repeater to which a fire detector is connected or an analog fire detector is connected to a controlled device such as a switchgear such as a fire door or a smoke outlet. In a polling-type fire alarm facility in which control relays are mixedly connected, storage means for storing the address of the relevant monitoring terminal in the control relay, and transmission from the monitoring terminal stored in this storage means Detected fire information,
When it is determined that the fire information that is judged to be a fire is included in this fire information, the reception signal determination means, the fire determination means, and the control means for controlling the connected controlled device are provided. The control repeater automatically monitors the signal sent from the relevant monitoring terminal stored in the storage means by the reception signal determination means and the fire determination means, and the relevant monitoring terminal determines that there is a fire. When the fire information is transmitted, the connected controlled equipment is immediately controlled without receiving the control command from the receiver.

As a result, the receiver has the effect of significantly reducing the burden of controlling the control repeater and being able to immediately control the controlled device.

[Brief description of drawings]

FIG. 1 is a system diagram of an embodiment of a fire alarm system according to the present invention.

FIG. 2 is a block diagram of an embodiment of a control relay of the fire alarm system of the present invention.

FIG. 3 is a flowchart illustrating an operation of the control repeater of FIG.

FIG. 4 is another flowchart explaining the operation of the control repeater of FIG.

[Explanation of symbols]

10 Receivers 21, 22, 23 Control Repeaters 31, 32, 33 Monitoring Repeaters 41, 42 Monitoring Terminals 41, 42 Analog Fire Detectors as Monitoring Terminals M Controlled Devices DE Regular Fire Detectors MPU Micro Processor ROM1 Program storage area shown in the flow charts of FIGS. 3 and 4 ROM2 Self address storage area ROM3 Relevant monitoring terminal address storage means TRX Transceiver circuit CC control means

Claims (2)

[Claims] 1. A receiver is connected to a plurality of monitoring terminals for monitoring a fire and sending out fire information regarding the fire, and a plurality of control repeaters for controlling a controlled device via a common signal line. The receiver polls the plurality of monitoring terminals to collect fire information and sends a control command for the controlled device to the control repeater, and the control repeater sends a control command from the receiver. In a fire alarm facility for controlling a controlled device when receiving, the control relay device includes a storage unit that stores an address of one or a plurality of monitoring terminals associated with itself among the plurality of monitoring terminals; A received signal judging means for receiving a signal flowing through a signal line and judging whether the received signal is a signal sent from a monitoring terminal whose address is stored in the storage means; Written in the means Fire discriminating means for discriminating whether or not there is fire information judged as fire in the received signal when it is discriminated that the signal transmitted from the monitoring terminal being operated is received; And a control means for controlling the connected controlled device when
Fire alarm equipment characterized by being provided with. 2. A receiver is connected to a plurality of monitoring terminals for monitoring a fire and sending out fire information regarding the fire, and a plurality of control repeaters for controlling a controlled device via a common signal line. The receiver polls the monitoring terminal and the control repeater, collects information from the monitoring terminal and the control repeater, or sends a control command of the controlled device to the control repeater, In the fire alarm equipment for controlling the controlled device when the control repeater receives a control command from a receiver, the control repeater includes one or a plurality of self-related ones of the plurality of monitoring terminals. Storage means for storing the address of the monitoring terminal; a reception signal for receiving a signal flowing through the signal line and determining whether the received signal is a signal sent from the monitoring terminal whose address is stored in the storage means Discriminating means; before Fire discriminating means for discriminating whether or not there is fire information judged as fire in the received signal when the received signal discriminating means judges that the signal sent from the monitoring terminal stored in the storage means is received. Control means for controlling the connected controlled device when the fire judging means judges that there is a fire;
Fire alarm equipment characterized by being provided with.