JPH0783775B2 - Disaster prevention equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a disaster prevention facility.

[Prior Art] Some conventional disaster prevention equipment adopts a polling method. In this bowling method, the receiver sequentially calls the terminal equipment in a cyclical manner, and the status information (whether there is an abnormal signal from the abnormality detector, the on / off state of the control circuit of the controlled equipment, etc.) is sent from the called terminal equipment. It is a method of reading information) or controlling the terminal device.

In addition, as the above-mentioned terminal equipment, a repeater for connecting an abnormality detector (fire detector, gas detector, etc.) and / or controlled equipment (fire door), smoke prevention equipment, smoke exhaust equipment, fire extinguishing equipment, etc. Alternatively, there is an abnormality detector or a controlled device.

In the above-mentioned disaster prevention equipment, the terminal device to be controlled and the time required for control are stored in advance in a storage means such as a ROM in the receiver, and when an abnormality such as a fire or gas leak occurs, based on the stored data in the storage means. The receiver controls the necessary terminal equipment.

By the way, there are various types of terminal devices to be controlled, and the time required for control is also different. For example, fire doors, emergency doors, smoke dampers, smoke dampers, etc. that are locked with electric locks are unlocked by operating the electric lock control circuit provided in the repeater for about 10 seconds, After that, the door closer and its own weight allow it to move to a predetermined position.

Fire shutters driven by motors, smoke exhaust dampers,
For smoke prevention, fire protection dampers, etc. installed in the air-conditioning duct, the control circuit for forward / reverse rotation of the motor installed in the repeater during opening / closing operation and recovery operation can be shortened from around 10 seconds to long. Now you need to run it for a few minutes.

Then, when a fire occurs, the receiver (or control panel) sends a control start command to the terminal device to be controlled,
The control circuit in the terminal equipment is operated, and after the time required for control has elapsed, the receiver sends a control end command to the terminal equipment to stop the operation of the control circuit. In addition, for a terminal device that requires recovery control after extinguishing a fire, a control start command and a control end command are sent at the start of recovery and at the end of recovery.

As described above, since there are various times to be controlled, there is a problem that the receiver (or the control panel) in the conventional device is heavily loaded.

In addition, it is necessary to newly create the storage contents of the storage means in the receiver for each installation location of the disaster prevention equipment, and if the control target is changed, the storage contents must be changed each time. However, there is a problem that its creation and modification are complicated.

[Object of the Invention] The present invention has been made in view of the problems in the above-described conventional device, and in a disaster prevention facility such as a fire alarm facility that employs a polling method, the burden on the receiver when controlling a terminal device is reduced. It is an object of the present invention to provide a disaster prevention facility that is small in size and easy to work on when changing a control target.

Embodiment of the Invention FIG. 1 is a block diagram showing an embodiment of the present invention.

In FIG. 1, the receiver 10 and the repeaters C1, C2 ... Cn are connected. As the terminal devices, other devices than the repeaters C1 to Cn are connected, but the repeater is shown as an example in FIG.

The receiver 10 includes a CPU 11 for overall control and an operation unit 12
An interface 13, a serial-parallel conversion circuit 14 for converting serial data into parallel data (or vice versa),
It has a transmitting / receiving circuit 15 for transmitting or receiving, a display section 16 for displaying predetermined data, and an interface 17.

Further, the receiver 10 has a ROM 1 that stores a system program.
, ROM2 for storing address / type map, ROM3 for storing a program for analyzing status information, ROM4 for storing a control program, and program for analyzing a control result
ROM5, RAM1 for storing the polling address, RAM2 for storing the instruction code, RAM3 for storing the terminal number and the type of the terminal device requiring the control start, and the terminal number and the type for the terminal device requiring the recovery. RAM 4 for storing, the RAM 5 for storing the terminal number and the type of the terminal device requiring the control result, and the RA for work
With M6.

FIG. 2 is a block diagram showing a specific example of the repeater C1.

The repeaters C2 to Cn also have the same configuration as the repeater C1.

The repeater C1 includes a detection circuit 61 for a fire signal output from the fire detector DE, a control circuit 62 for controlling the electric lock C of the fire door, a control timer TM1 for the control circuit 62 for the fire door, and a fire shutter. A control circuit 63 for controlling the forward / reverse rotation of the motor M, and a forward rotation control timer TM for controlling the forward rotation time of the motor M.
2 and the reverse rotation control timer T that controls the reverse rotation time
M3, a control circuit 64 for controlling the forward / reverse rotation of the smoke exhaust motor DM, a forward rotation control timer TM4 for controlling the forward rotation of the motor DM, and a reverse rotation control timer TM5 for controlling the reverse rotation are provided. There is.

The operating time of timers TM1 to TM5 is, for example, 5 seconds for TM1 and T
M2 is 60 seconds, TM3 is 90 seconds, TM4 and TM5 are each 20 seconds.

A fire door, a fire shutter, and a smoke exhaust damper are examples of the terminal device itself or a controlled device connected to the terminal device. Further, the timers TM1 to TM5 are an example of a time measuring means that produces an output for a predetermined time when the terminal device receives the control command signal from the receiver. The time measuring means can adjust the time during which the output is generated. Furthermore, the fire door control circuit
62, fire prevention shutter control circuit 63, smoke exhaust damper control circuit 64
Is an example of a control circuit that controls the controlled device while the timing means is producing an output.

Next, the operation of the above embodiment will be described.

FIG. 3 is a flowchart showing the operation of the receiver 10.

In the receiver 10, first, initial values are set (S
1), the terminal number n (terminal device number, that is, the polling address) is incremented by 1 (S2), the control-necessary start terminal number and its type stored in the RAMs 3 to 5, the recovery-necessary terminal number and its type are stored. , Referring to the terminal number of the control result and its type, if there is an n-th terminal number in any of the RAMs 3 to 5, create a corresponding instruction code.
If there is no terminal number, the instruction code requesting the status information is created (S3). Then, the address code and the instruction code created in S3 are sent to the terminal device (S4).

After that, if there is a received signal from the polled terminal device (S5) and the received signal is the control result (S6), the control result information is analyzed by the analysis program of ROM5 and the result is displayed on the display unit 16 (S7). ). If the received signal from the terminal device is not the control result, the status information is analyzed by the analysis program of the ROM 3 and displayed on the display unit 16 (S8).

As a result of analyzing the state information from the fire detector DE, etc., if it is necessary to start controlling the fire door (S11), the type (type of device to be controlled) and the terminal device number n are stored in RAM3. Yes (S12). If the device to be controlled needs to be restored (S13), the type of the device to be controlled and the terminal number n are stored in the RAM 4 (S14). If the control result is required (S15), the type of device requesting the control result and the terminal number n are stored in the RAM 5 (S16).

Then, the operations of S6 to 16 are repeated until all the received information has been processed (S21), and if all the received information has been processed, the terminal number n reaches the set value N which is the final terminal number thereof. The operation is repeated, and when the terminal number n matches the set value N, the terminal number n is set to 0 (S23) and the process returns to S2.

Next, the operation of the repeater C1 will be described.

FIG. 4 is a flowchart showing the operation of the repeater C1.

First, set the initial value (S31), there is a received signal from the signal line (S32), and the polling terminal number (address) in the received signal matches the terminal number stored in ROM2 of the repeater C1. If it does (S33), read the status information (S3
Four).

This state information includes the presence / absence of a fire signal output by the fire signal detection circuit 61, and on / off state information in the respective control circuits 62, 63, 64 for the fire door, fire shutter, and smoke exhaust damper.

Next, the instruction code of the received signal received from the receiver 10 is decoded, and if the instruction code is the control instruction (S35) and the start instruction (S41), the timers TM1, TM2, TM4 are turned on ( The state information of the detection circuit 61 and the control circuits 62 to 64 that has been read in advance in S42) and S34 is sent to the receiver 10 (S43). Then, the control circuits 62 to 64 are operated for a predetermined time respectively by the outputs of the timers TM1, TM2 and TM4, the fire door and the fire shutter are closed, and the smoke exhaust damper is opened.

On the other hand, if the control command is a recovery command (S51), timer T
M3 and TM5 are turned on (S52), and the status information already read in S34 is sent to the receiver 10 (S43). Then, the control circuits 63 and 64 are respectively operated for a predetermined time by the outputs of the timers TM3 and TM5 to open the fire prevention shutter and close the smoke exhaust damper.

If the received instruction code is not a control instruction (S35), receiver 1
If the control result is requested from 0 (S61), the control result of the controlled device (fire door, fire shutter,
The open / close information of the smoke exhaust damper is read (S62), and the control result information and the status information read in S34 are sent to the receiver 10 (S63). That is, for a control device for which a control result is requested, the control result of that device is sent, and for a control device for which a control result is not requested, the status information of the control circuit of that device is sent. Then return to S32.

In the above embodiment, a control timer is provided for each control circuit, which starts operation according to a command from the receiver and outputs an output to the control circuit in the terminal device for a predetermined time (time required for control). As a result, when control becomes necessary due to a fire or the like, the receiver terminates the control of the control circuit simply by sending a control command to the corresponding terminal device, so the receiver controls the control circuit. Does not require time management. Therefore, the control load of the terminal device in the receiver is significantly reduced.

In addition, by providing a control timer that controls the operating time of the control circuit, it is possible to finely control the control equipment,
Since each terminal device can be controlled in the optimum time, power consumption for control can be saved as a result.

FIG. 5 is a diagram showing an example of the timers TM1 to TM5. In this example, the timer time can be arbitrarily changed by a dip switch. By allowing the timer time to be arbitrarily changed in this way, it is possible to deal with the same type of equipment having different control times (timer output times).

FIG. 6 is a time chart showing the operation of the timer shown in FIG.

This timer chart shows the case where an 8-bit binary counter with a preset priority function is used.

The time T of the timer output (output of the OR circuit) is T = 1 second x
^{{2 8 - (2 7 ·} S7 + 2 6 · S6 + 2 5 · S5 + 2 4 · S4 + 2 3 · S3 + 2 2
^{· S2 + 2 1 · S1 +} 2 0 · S0) is given by}.

Therefore, it is a variable timer of 1 to 255 seconds.

The value of the counter is indeterminate when the power is turned on, but the value of the counter becomes zero immediately after the power is turned on due to the power-on reset signal, and the output of the OR circuit becomes “L”, making the counter self-confident via the AND circuit. Cleared and self-locked in the cleared state.

When a start pulse is given, the clear state is canceled because the preset has priority, and the states of the DIP switches S0 to S7 are preset in the counter. After that, the counter continues counting up, and after overflowing (Q0 to Q7 are all "H"), the counter is cleared again, so that the self-locking is applied again. During this period, the output of the OR circuit becomes "H" for the above T seconds, and as a result, it has a timer function.

Note that the start pulse is used when the terminal device receives a start command or a recovery command from the receiver
Outputs via I / F.

[Effects of the Invention] According to the present invention, a control timer is provided for each control circuit, which starts operation by a command from the receiver and outputs an output to the control circuit in the terminal device for a predetermined time (time required for control) In the disaster prevention equipment adopting the polling method, it is possible to reduce the load on the receiver when controlling the terminal device and to easily perform the work such as changing the control target.

[Brief description of drawings]

FIG. 1 is a block diagram showing a receiver in an embodiment of the present invention. FIG. 2 is a block diagram showing the repeater in the above embodiment. FIG. 3 is a flowchart showing the operation of the receiver in the above embodiment. FIG. 4 is a flowchart showing the operation of the repeater in the above embodiment. FIG. 5 is a circuit diagram showing an example of the timer in the above embodiment. FIG. 6 is a time chart showing the operation of the timer shown in FIG. 10 …… Receiver, C1 …… Repeater, 11,50 …… CPU, 61 ……
Fire signal detection circuit, 62 ... fire door control circuit, 63 ... fire shutter control circuit, 64 ... smoke exhaust damper control circuit.

Claims (2)

[Claims] 1. The terminal device has a control circuit for controlling a controlled device provided in the terminal device itself or a controlled device connected to the terminal device, and according to a control command signal from a receiver, In the disaster prevention facility for controlling the controlled device via the control circuit, the terminal device is provided with a clocking means for producing an output for a predetermined time when the terminal device receives the control command signal from the receiver. The disaster prevention facility is characterized in that the control circuit is a circuit for controlling the controlled device while the timing means produces an output. 2. The disaster prevention facility according to claim 1, wherein the time measuring means is capable of adjusting the time during which the output is generated.