JP3105331B2 - Fire alarm system - Google Patents

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 provided with a receiving unit such as a fire receiver or a repeater, and a plurality of terminal devices connected to the receiving unit. A fire alarm system that constantly monitors the controlled device that is operated when there is an abnormality and performs processing operations such as preset display, alarm, and transfer output when an operation signal indicating that the device has been operated is received from the controlled device. It is about.

[0002]

2. Description of the Related Art In a conventional fire alarm system, a receiving unit such as a fire receiver sequentially and cyclically calls a terminal device, and receives environmental state information from the terminal device. There is a method that employs a polling method of reading information on normality) and controlling terminal devices (opening and closing a fire door, etc.). The above-mentioned terminal devices include a fire detector, a gas detector, and other terminal devices for detecting abnormalities in the environmental state, and a local sound device such as an emergency bell, a fire door, a smoke exhaust device, and the like. Is connected to the controlled terminal device to be controlled.

[0003] In such a fire alarm system, various terminal devices are arranged in advance in consideration of the structure and purpose of the building, and the installation position of the terminal device for abnormality detection and the controlled terminal device, the fire alarm, and the like. Controlled terminal devices and the like that are interlocked and controlled in the event of an abnormality are stored in storage means such as a ROM.
In addition to constantly monitoring the signal from the terminal device for abnormality detection, it also constantly monitors whether the controlled terminal device has operated based on the signal read from the controlled terminal device. When a signal indicating an abnormality is received from the terminal device for use, the display device performs a display operation, an alarm, and a processing operation such as an interlocking control of the corresponding controlled terminal device based on the content stored in the ROM or the like. When a signal indicating an operation state is received from the controlled terminal device, processing operations such as display indicating the effect, an alarm, and transfer output are similarly performed.

[0004] The state of the controlled device is set such as whether it should be normally opened or closed at the installation location, and the controlled device that should be always open is closed. Then, a signal indicating that fact is transmitted to the fire receiver as an operation signal. When the fire receiver receives such an operation signal, it performs processing operations such as displaying that the controlled device has operated and giving a simple alarm. Therefore, for example, when an emergency staircase with a fire door that should be closed at all times is used as needed and is frequently opened and closed, the fire receiver is opened and closed every time.
An operation signal from the fire door is received, and a processing operation such as display is performed. Then, there is a risk that the display of other necessary information is confused with the frequently displayed information, remains unnoticed, and may become important.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a method of shielding a terminal device which continues to operate after installation of a fire alarm system from processing operations such as display caused by a signal from the terminal device. It is the purpose.

Specifically, according to the present invention, a receiving unit such as a fire receiver or a repeater, and a plurality of terminal devices connected to the receiving unit are provided. In the fire alarm system, which constantly monitors the controlled device to be operated and receives an operation signal indicating that the device has been operated from the controlled device, and performs a preset processing operation, the fire alarm device that does not require the processing operation A terminal shielding designation unit that can designate a control device, the receiving unit, when receiving the operation signal from the controlled device, when the controlled device is designated by the terminal shielding designation unit, There is provided a fire alarm system which does not perform a processing operation.

[0007]

With respect to the controlled device designated by the terminal shielding designation means, the receiving section does not perform a processing operation such as display.
Thus, after the fire alarm system is installed, for example, if the controlled device that has been required to be used frequently is designated as the terminal shield designating unit, the receiving unit will display the designated controlled device. , Etc., and only other necessary information can be displayed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show a fire alarm system including a fire receiver RE, a repeater RP, and various terminal devices. FIG. 1 shows an internal circuit of the fire receiver RE, and FIG. Shows the internal circuit of the repeater RP and the repeater R
Various terminal devices connected to P are illustratively shown.

[0009] N repeaters RP are connected to the fire receiver RE via a signal line L1, and various sensors and controlled devices are connected to each repeater RP via a signal line L2. In 2, the relays 31, 32, 33 for monitoring, control, and gas leak detection for giving addresses, analog fire detectors (photoelectric, ionization, heat, etc.) 34, normal smoke detection Detector 41, differential heat sensor 42, constant temperature heat sensor 4
3, a terminator 44, a district bell 46, a transmitter 48, controlled equipment 51 such as a fire door and a smoke exhaust damper, a gas leak detector 61, and the like are shown connected.

In the fire receiver RE, the MPU 1 is a microprocessor, the ROM 11 is a program storage area including all operations such as signal transmission and reception, and the ROM 12
Is a storage area for predetermined items such as addresses and instruction codes of each repeater; a RAM 11 is a work area; a RAM 12 is a storage area for storing a database and an interlocking table of all terminal devices collected from each repeater; The RAM 13 has a storage area for storing information from the called repeater,
AM 14 is a storage area for storing a processed flag for a controlled device on which an operation such as display based on an operation has been performed, and RAM 15 stores a terminal blocking flag for a controlled device that does not require display or other operation. Storage area for the
OP is an operation unit such as a numeric keypad, DP is a display unit such as an LCD, BZ is an alarm unit such as a buzzer, and TRX1.
Reference numeral 1 denotes a signal transmitting / receiving unit including a parallel / serial converter and a serial / parallel converter for transmitting / receiving a signal to / from each repeater RP via the signal line L1, and IF11 to IF14 are interfaces, respectively.

In the repeater RP, the MPU 2 is a microprocessor, the ROM 21 is a storage area for programs including all operations such as signal transmission and reception, and the ROM 22 is a self address, a database of each terminal device, instruction codes,
The storage area of the predetermined items such as the fire discrimination standard and the RAM 21
The work area, the RAM 22 is a storage area for collecting information from each terminal device and storing a fire signal and the operation state of the controlled device. The TRX 21 and the TRX 22 are each connected to the fire receiver RE via the signal line L1. A signal transmission / reception unit such as a parallel / serial converter for transmitting / receiving a signal to / from each terminal device via the signal line L2, and IF21 and IF22 are interfaces.

Hereinafter, the operation of FIGS. 1 and 2 will be described with reference to the flowcharts of FIGS. 3 and 4 showing the operation of the fire receiver RE and the flowchart of FIG. 5 showing the operation of the repeater.

The operation of the fire receiver RE will be described. Initially, the fire receiver RE is initially set. At this time, for example, a database is collected from the storage area ROM 22 of each repeater RP and stored in the storage area RAM 12. (Step 102). Thereafter, polling is performed from the first repeater to the Nth repeater.
Check if there is an input from P.

If there is a controlled device to be shielded, that is, a controlled device that does not want to perform a processing operation such as displaying or sounding when operated, the relay device number to which the controlled device is connected and the controlled device A shielded input indicating the device address or the like is input from the operation unit OP at an arbitrary time, and it is determined that such a shielded input is present for the n-th repeater. If (Y in step 108
And Y in step 110), the terminal shielding flag “1” is set in the corresponding controlled device area of the n-th repeater area in the terminal shielding flag storage area RAM 15 (step 112).

Similarly, when it is desired to release the set terminal blocking flag “1”, a blocking release input indicating this is input from the operation unit OP, and there is such a blocking release input to the n-th repeater. (Step 10)
8 and Y in step 114), storage area RAM 15
The terminal blocking flag "1" set in the corresponding area is erased to "0" (step 116).

After determining the presence or absence of an input from the operation unit OP, the fire receiver RE sends a status information return command to the n-th repeater RP via the signal transmission / reception unit TRX11, and responds to the status information return command. Then, when the status information is returned from the n-th repeater RP, it is read and stored in the storage area R
The information stored in the AM13 is read from each terminal or each controlled device connected to the n-th repeater RP, and the presence or absence of an abnormal signal such as a fire of various sensors or the presence or absence of an operation signal of the controlled device is determined. Confirm (Step 12
0 and 122).

According to the status information from the n-th repeater RP, the result of decrypting each terminal individually (step 12
2) If there is an abnormal signal such as a fire (Y in step 124), a fire operation is performed (step 126), and if there is an operation signal indicating that the terminal or the controlled device has been operated (step 128). Y) The processing operation (step 13)
0 to 144), and when other processing is required (Y in step 146), a processing operation according to the content is performed (step 148).

The processing operation (steps 130 to 144) in the case where there is an operation signal indicating that the terminal or the controlled device has operated (step 128, Y) will be described in detail. Area RAM 14
It is checked whether or not a flag “1” indicating that the processing after the terminal operation has been completed is set in the n-th repeater area in (step 130), but the processing has not been completed at this time. Therefore, the flag "1" is not set (N of step 130). Therefore, next, the controlled device area in the terminal shield flag storage area RAM 15 is looked at, and the shielding input to the controlled device is performed. It is checked whether or not there is (step 132). If there is a shielding input in the storage area RAM 15 (Y in step 132), even if the controlled device is operated, it is shielded as not a device that should perform the processing operation, and no processing operation is performed. Not done.

If there is no shielding input in the storage area RAM 15 (N in step 132), necessary processing operations such as display on the display unit DP, warning by the warning unit BZ, and transmission of a transfer output are performed. (Step 134) Then, the processed flag "1" is set in the n-th repeater area in the terminal processed flag storage area RAM 14 (Step 136). As a result of the processing operation, the operator or the like can know that the controlled device has operated.

[0020] The fire receiver RE next time the n-th repeater RP
Is polled, and even if the operation signal of the controlled device is received, since the processed flag “1” is set in the storage area RAM 14 (Y in step 130), the processing operation is performed again. I will not be told.

Thereafter, when the controlled device is not in the operating state and the fire receiver RE does not receive the operation signal of the controlled device (N in step 128), at this point, the processed flag storage area RAM 14 Since the processed flag "1" is set in the area for the n-th repeater in (1) (Y in step 140), a necessary stop such as stopping or deleting the display performed in the processing operation in step 134 is performed. The processing operation is performed (step 142), and the processed flag “1” of the n-th repeater area in the storage area RAM 14 is erased to “0”. This returns to a normal state.

Next, the operation of the repeater RP will be described. The repeater RP is connected to a terminal including a monitoring sensor, a controlled device, etc., which always has K addresses via a signal transmitting / receiving unit TRX22. The calling and the reading of the information are repeatedly performed (step 214), and the information is stored in the storage area RAM by performing a fire determination or the like in the case of various sensors.
22 (step 216).

When a call is received from the fire receiver RE (Y in step 206), a processing operation according to the contents of the command is performed (step 210). If the command is a status information return command (step 120 in FIG. 3) (step 208)
(Y), the information contents of the various terminals in the storage area RAM 22 are read, and the information contents are transmitted to the fire receiver RE via the signal transmitting / receiving unit TRX21 (step 212). The information transmitted in this manner is read and decoded in the fire receiver RE (step 120).
And 122).

In the above embodiment, the terminal shielding flag is stored in the storage area RAM 15 of the fire receiver RE,
It is determined whether or not there is a processing operation.
A similar RAM, that is, a read-only memory is provided in P, and the input from the operation unit OP of the fire receiver RE is transmitted to the repeater R.
The same effect can be obtained by storing the data in the RAM of P, that is, the read-only memory, and determining whether or not a processing operation is required in the repeater RP.

[0025]

As described above, according to the present invention, the terminal shielding designating means for designating the controlled equipment which does not require the processing operation such as display is provided, so that it is necessary to continue the operation after the installation of the fire alarm equipment. When there is a control device, processing operations such as unnecessary display caused by a signal from the controlled device can be shielded, so that other essential information can be displayed effectively. There is.

[Brief description of the drawings]

FIG. 1 is a block circuit diagram showing a fire alarm system according to one embodiment of the present invention, showing in detail an internal circuit of a fire receiver RE.

FIG. 2 is a block circuit diagram showing a fire alarm system according to an embodiment of the present invention, showing in detail an internal circuit of the repeater RP and exemplifying various terminal devices connected to the repeater RP; Is shown.

FIG. 3 is a flowchart for explaining the operation of the fire receiver RE.

FIG. 4 is a flowchart for explaining the operation of the fire receiver RE.

FIG. 5 is a flowchart for explaining the operation of the repeater RP.

[Explanation of symbols]

 RE Fire receiver RP Repeater OP Operation unit DP display unit BZ alarm unit RAM12 Storage area for database of each repeater RAM13 Storage area for input information from repeater RAM14 Storage area for terminal processed flag RAM15 Terminal shielding flag Storage area 31-61 Various terminal devices

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G08B 17/00-31/00

Claims (1)

(57) [Claims] 1. A receiving unit such as a fire receiver or a repeater, and a plurality of terminal devices connected to the receiving unit. The receiving unit constantly monitors a controlled device to be operated when an abnormality such as a fire occurs. In a fire alarm system that performs a preset processing operation when receiving an operation signal from the controlled device indicating that the terminal device has been operated, a terminal shielding designation unit that can designate the controlled device that does not require the processing operation The receiving unit, when receiving the operation signal from the controlled device, when the controlled device is designated by the terminal blocking designation means, does not perform the processing operation Fire alarm equipment.