JPH0632145B2 - Fire monitoring controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention is for monitoring a fire monitoring control device, and particularly for preventing malfunction of a disaster prevention device at the time of power-on.

[Prior Art] Conventionally, in a large-scale fire alarm system for a high-rise building, an underground mall, etc., a plurality of fire detectors are divided into groups, and a plurality of repeaters for monitoring the fire detectors of each group are provided. In response, the repeater judges the fire occurrence based on the detection signal from the fire detector in the group, and when it is judged that the fire occurred, it uses the transmission means to return this information to the receiver, and the receiver There is a multi-system alarm system that performs overall monitoring based on transmission information from each repeater. For example, Japanese Unexamined Patent Publication No. 54-83396 "Fire Alert System" and Japanese Unexamined Patent Publication No. 54-83397 "Fire Alarm System". In general, such an alarm system is controlled by interlocking with a smoke control device or the like.

[Problems to be Solved by the Invention] In such an alarm system, a signal processing device and a power supply device are provided for each repeater so that not only the control from the central receiver but also the control of the disaster prevention device for each repeater can be performed. In a system designed to be operated, terminals such as a smoke proof device and a fire door may operate when the power is turned on for the first time due to improper adjustment or failure of the fire detector, which is very dangerous.

[Means for Solving the Problems] In the fire monitoring control device of the present invention, the central monitoring control device has a stomach for transmitting an interlocking stop release signal to the repeater based on an operation input, and a power supply to the repeater from power-on. It is characterized by having means for prohibiting interlocking control of disaster prevention equipment until it receives the interlocking stop release signal.Each repeater is in the interlocking stop state when the power is turned on. It is possible to enter the interlockable state only after receiving the interlock stop release command of.

[Embodiment] An embodiment of a fire monitoring control device of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the entire fire monitoring control device of the present invention. This fire monitoring control device is connected to a central monitoring control device 1, a plurality of repeaters 2 connected to a transmission line 5 extending from the central monitoring control device 1, and a wire line 6 extending from each repeater 2. Fire detector 3 and each relay 2
Terminal 4 of disaster prevention equipment connected to the control line 7 extending from the
It consists of and. The central supervisory control device 1 includes a central processing unit 10 of a microprocessor, a storage device 11 in which programs, data, etc. are stored, a transmission interface (abbreviated as I / F) 12 for transmitting / receiving signals to / from each repeater 2. ,
An operation unit 14 including various switches, a display unit 15 for displaying various information such as fire and failure, an operation unit 14 and a display unit
It consists of 15 interfaces 13. The repeater 2 includes a central processing unit 20 of a microprocessor, a storage device 21 in which programs, data, etc. are stored, a transmission interface 23 for transmitting and receiving signals to and from the central monitoring and control device 1, and fire detectors 3. It is composed of a transmission interface 22 for transmitting and receiving signals and a control interface 24 for controlling the terminal device 4. Further, each repeater 2 is individually provided with a power supply device. Each fire detector 3 includes a detection unit that detects a fire phenomenon such as heat and smoke, and a transmission unit that transmits a detection signal of this detection unit to the repeater 2.

To explain the normal monitoring operation of the fire monitoring and controlling apparatus thus configured, the central processing unit 20 of each repeater 2 executes the processing program stored in the storage unit 21. The central processing unit 20 operates the transmission interface 22 to sequentially and cyclically call the fire detectors 3 and request return data. The transmission interface 22 receives the return data from the fire detector 3 and supplies it to the central processing unit 20. The central processing unit 20 carries out fire monitoring based on the returned data. When it is judged that a fire has occurred, the central processing unit 20 controls the terminal device 4 such as a smoke proof device and a fire door through the interface 24. On the other hand, the central processing unit 10 of the central supervisory control device 1 executes the processing program stored in the storage device 11. The central processing unit 10 operates the transmission interface 12 to sequentially and cyclically call the repeaters 2 and request return data. The called repeater 2 returns the information on the monitoring state. The central supervisory control device 1 monitors the whole based on the return data from each repeater 2.

The terminal 4 connected to each repeater 2 via the control line 7 may be controlled by the judgment of the central processing unit 20 of the repeater 2 or may be executed based on a command from the central supervisory controller 1. is there. This is to operate the disaster prevention device when it is determined that a fire has occurred in any case. The central processing unit 20 of each repeater 2 is designed so that the terminal 4 cannot be controlled when the power is turned on. That is, it is in the interlocking stopped state. Therefore, the terminal 4 is not controlled even if there is detection data from the fire detector 3 that determines that a fire has occurred. This prevents the fire door and the smoke evacuating device from operating even if erroneous foaming occurs due to a defective or improper installation of the fire detector 3 such as during construction, or an unadjusted sensitivity.

When a normal monitoring control operation is performed when the power of the central monitoring control device 1 and each relay 2 is turned on, an operation input for canceling the interlocking stop is input from the operation unit 14 of the central monitoring control device 1. When the central processing unit 10 receives this operation input, the transmission interface 12
The interlocking stop release code is sent to each repeater 2 via. When the transmission interface 23 of each repeater 2 receives the transmission signal of this interlocking stop release code, and the central processing unit 20 takes in this code, the stoppage of the motion of the terminal 4 is released and the interlocking is possible. That is, each relay 2 is set to the interlocking stop state in advance when the power is turned on, and becomes the interlockable state only after the release command of the interlocking stop release from the central monitoring and control device 1.

Next, an example of a processing program executed by the central processing unit 10 of the central monitoring apparatus 1 will be described with reference to the flowchart shown in FIG. When the power is turned on, first step S01
The initialization routine of is executed to clear and initialize each buffer. A step S02 sets a variable K indicating the address of the repeater to 1. A step S03 fetches the operation input. In step S04, it is determined whether the interlocking stop is released by the operation input. If YES, the process proceeds to step S05, and if NO, the process proceeds to step S06. Step S05 is a repeater (K)
Send the interlocking stop release code to. A step S06 calls the repeater (K) and fetches return data.
Step S07 is a routine for processing the returned data, which is a main routine for monitoring and controlling, and if necessary, displaying an alarm. A step S08 increments the variable K by one. In step S09, it is determined whether the variable K indicating the address exceeds the final address M. If YES, the process returns to step S02 and repeats the same processing from the repeater (K = 1) having the first address.
If NO, the process returns to step S03 and the same process is performed from the repeater (K) having the next address. It should be noted that, once an operation input for releasing the interlocking stop is issued, the interlocking stop release code is sent to all the repeaters.

Next, an example of the processing program executed by the central processing unit 20 of the repeater 2 will be described based on the flowcharts shown in FIGS. 3 and 4.

Referring to FIG. 3, when the power is turned on, the initialization routine of step S10 is first executed. A step S11 sets an interlocking stop flag. Step S12 is a data processing routine that takes in the detection data from the sensor and determines from this data whether or not a fire or failure has occurred.
In step S13, it is determined based on the processing result of step S12 whether or not the interlocking control of the terminal device is necessary. If YES, the process returns to step S14, and if NO, the process returns to step S12 to repeat the data processing routine. In step S14, it is determined whether or not the interlocking stop flag is present, and if YES, step S14
Returning to 12, if NO, the process proceeds to step S15. Step S
Reference numeral 15 is a routine for performing interlocking control. This step S15
Is executed, the process returns to step S12. In this way, the detection data from the sensor is always taken in and monitored.

When the central processing unit 20 of the repeater 2 is executing the processing program shown in FIG. 3 and there is a call signal from the central supervisory control unit 1 and if it matches with its own set address, the transmission interface 23 sends the central processing unit 20 to the central processing unit 20. Output an interrupt signal. When the central processing unit 20 is interrupted, it executes the interrupt processing program shown in FIG. To explain this program, first, when an interrupt is applied, the data (code) portion of the call signal from the central supervisory control device is fetched in step S20. In step 21, it is judged whether this data is the interlocking stop release code. If YES, the process proceeds to step S23, and if NO, the process proceeds to step S22. Step S23
Clears the interlocking stop flag. Step S22 is a routine for processing other data. In step S24, the return data prepared in advance (data created in the program process shown in FIG. 3) is returned to the central monitoring and control unit. When this step S24 is completed, this interruption process is completed.

[Effects of the Invention] As described above, the present invention prevents malfunction of the disaster prevention device at the time of turning on the power in the fire monitoring control device which interlocks and controls the terminals for each repeater. Sometimes the fire door and smoke evacuator do not operate carelessly, and the predetermined adjustment and function check have been completed, so that the system can be erroneously linked and is extremely useful for system adjustment.

[Brief description of drawings]

FIG. 1 is a block diagram showing the entire fire monitoring control device of the present invention, FIG. 2 is a flowchart showing an example of a processing program executed by the central monitoring control device of the same device, and FIGS. 3 and 4 are the same device. 5 is a flowchart showing an example of a processing program executed by the relay device of FIG. 1 ... Central monitoring control device, 2 ... Repeater, 3 ... Fire detector, 4 ... Terminal device, 5, 6 ... Transmission line, 7 ... Control line, 10, 20 ... Central processing unit, 11, 21 …… Storage device,
12, 22, 23 …… Transmission interface, 13,24 …… Interface, 14 …… Operating section, 15 …… Display section.

Claims (1)

[Claims] 1. A plurality of fire detectors provided in each monitoring area and a plurality of the fire detectors are divided into groups, and a fire occurrence judgment process is performed based on a detection signal from each of the fire detectors. Control the disaster prevention equipment such as smoke proof equipment based on the judgment result, and request the return data by cyclically calling a plurality of repeaters each equipped with a power supply device and the plurality of repeaters. Monitoring the whole fire from data,
And a central monitoring control device for controlling the disaster prevention device, wherein the central monitoring control device sends a signal to release the interlocking stop of the repeater to the central monitoring control device based on an operation input, A fire monitoring and control device, characterized in that the repeater comprises means for prohibiting interlocking control of the disaster prevention device from power-on until receiving the interlock stop release signal.