JPS63189999A - Sound controller for disaster prevention equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an acoustic control device for disaster prevention equipment for fire, gas leakage, theft prevention, etc. The present invention relates to a sound control device for disaster prevention equipment that mutes sounds individually or completely.

[Prior Art] Disaster prevention equipment includes a receiver and a plurality of terminal devices connected to the receiver, and when a cause of ringing such as an abnormality occurs in the terminal device, at least one of the terminal devices
If the receiver receives a ringing factor signal from a source, the receiver will set the audio equipment to ring.In order to silence the sounding equipment in such disaster prevention equipment, conventionally, the receiver must set the sound equipment to ring. In order to cut off only the ringing cause signal that has led to the ringing, operate a so-called stop means such as a switch, which is provided corresponding to each terminal device, or to cut off all the ringing cause signals. It all depended on whether a so-called prohibition means such as a switch was operated. The stop means is operated to stop the sound when a fire or the like occurs and the sound is emitted, and the prohibition means is operated to temporarily prohibit all sound when, for example, maintenance is performed.

[Problems to be Solved by the Invention] Since these stopping means and inhibiting means are provided separately, for example, when transitioning from the sound stopping state to the inhibiting state, the stopping means is first released and then the inhibiting means is set. It was troublesome as it required two operations, such as operating the . Furthermore, if you forget to release the stop means and leave it as it is, there is a possibility that a serious problem will develop in that no acoustic sound will be emitted in the event of an actual abnormality such as a fire. Furthermore, there is no indication that a stop operation or a prohibition operation has been performed, so it is difficult to determine whether the current state is an audible sound enable state or an audible stop state.
Another problem is that it is not possible to immediately determine whether or not the sound is prohibited.

Means for Solving Problem E] Therefore, according to the present invention, the present invention includes a receiver and a plurality of terminal devices connected to the receiver, and receives a ringing cause signal from at least one of the terminal devices. Disaster prevention equipment that causes audio equipment to sound when
a sound stop circuit that operates to stop the sound of the audio device depending on a sound cause signal from a terminal device inputting the sound cause signal at the time of receiving the operation signal from the prohibition switch; and the sound stop/prohibit circuit. connected to the switch,
When the sound stop/prohibit switch continues to be operated for a predetermined period of time or more, the sound of the audio device is prohibited in response to a sound cause signal from any terminal device, and the sound stop/prohibit switch is activated. a sound inhibiting means that operates to cancel the prohibition of sound of the audio equipment when the is operated for a time shorter than the predetermined time;

A recovery switch that, when operated, operates to cancel the prohibition of the sound of the audio equipment by the sound prohibiting means and the stop of the sound of the audio equipment by the sound stop circuit. A sound control device is provided.

[Function] With the above configuration, the operation time of the sound stop/inhibition switch is changed, and if the operation is performed for a long time, the sound is prohibited, and if the operation is performed for a short time, the sound is stopped when the sound prohibition is canceled, so the operation is easy and there is no possibility of erroneous operation. The possibility of this is minimized as much as possible.

[Embodiment] Hereinafter, an audio device according to a preferred embodiment of the present invention will be described with reference to FIG.

In FIG. 1, a receiver 10 includes a receiving circuit 12 that receives acoustic ringing factor inputs such as fire signals from a plurality of terminal devices, and an acoustic ringing circuit 14 that is essentially an OR circuit.
and an acoustic device 16, such as a main bell, connected to the output side of the acoustic ringing circuit 14, and various types of devices arranged between the receiving circuit 12 and the acoustic ringing 1 circuit 14 for performing acoustic ringing stop/inhibition control. Contains a circuit.

The circuit that performs sound stop/inhibit control further includes a sound stop/inhibit switch SW, a recovery switch SW2, and a sound prohibition control circuit 18 that performs control to prohibit sound by operating the sound stop/inhibit switch SWI. , a sound amplification/inhibition circuit 20 which amplifies the ringing factor signal or blocks the signal to prohibit sound according to a signal from the sound prohibition control circuit 18; The sound source signal sent from the
A plurality of sound stop circuits 22-1, 22-2, . . . , 22- for masking by operating the prohibition switch SW1.
n, a light emitting diode, that is, an LED 24, which lights up or blinks when the sound amplification/inhibition circuit 20 and/or the sound stop circuit 22 is operating, and the sound amplification/inhibition circuit 20 and/or the sound stop circuit 22-1 to 22. - L controls the LED 24 to turn on or blink based on the signal from 1.
An ED control circuit 26 is arranged.

The operation of the acoustic control device shown in FIG. 1 configured as above will be explained with reference to the flowchart shown in FIG. 2.

When one of the terminal devices, for example, the No. 1 terminal device TR, detects an abnormality such as a fire, and a ringing factor signal such as a fire signal is input from the terminal device TR to the receiving circuit 12, the ringing factor The signal is connected to the line Ll and the first AND gate AND
a, and further via the amplifier AM in the acoustic amplification/inhibition circuit 20 to the acoustic ringing circuit 14, thereby causing the audio equipment 16 to ring.

If the operator wishes to mute only the acoustic ringing based on the ringing factor signal from the first terminal device TR, that is, to stop the sound, the operator presses the sound stop/inhibit switch SW + for a predetermined time. T, (e.g. 3 seconds)
Continue to operate for a short time (block 10 in Figure 2) consisting of the following:
2 Y, 103, 104 N, and 105 Y), this causes a high potential signal from the power supply, conceptually denoted BA, to pass through the switch SWl and the line Lc to the second AND gate A. given to one input of N D b,
Furthermore, since the ringing factor signal is inputted to the other input of the second AND gate ANDb through the line, the second AND gate ANDb inputs the high potential signal to the flip-flop FF, The flip-flop FF is set to the set state.

When the flip-flop FF is set, the first
A signal is output to close the AND gate ANDa of block 109), thereby cutting off the noise-causing signal on the line and silencing the sound of the audio equipment 16 (block 109).
Block 110), thus an acoustic stop is performed. For other terminal devices that were not generating a ringing factor signal at the time the sound stop/inhibition switch SW1 was operated, the ringing factor signal, that is, the high potential signal, is not given to the other input of the second AND gate. Since the flip-flop is not set, the ringing factor signal is not blocked (N in block 108).

Note that when the sound is stopped, the second AND gate AN
The high potential output of Db, ~A N D bn is
The flip-flop FFe in the LED control circuit 26 is set, and the output of the flip-flop FFe causes the LE
Since the D flicker drive circuit 26a is energized, the LED 24
is flashed (block 111).

The above explanation describes the so-called sound stop operation in which the sound stop/inhibition switch SW is repeatedly operated for a short period of time to mute the alarm sound only for the terminal device that is generating the ringing factor signal.・Prohibition switch SW
1 is operated for a predetermined time T (for example, 3 seconds) or more, the so-called sound prohibition operation is performed in which all ringing-causing signals from all terminal devices are cut off (Y in block 104). becomes.

That is, when the sound stop/inhibition switch SW is operated, a high potential signal is input to the sound inhibition control circuit 18.
6, the first monostable multivibrator MM detects the rise of its input signal from a low potential to a high potential, and outputs a shot signal. Output. The output of the first monostable multivibrator MM is given to the second monostable multivibrator MM2 and the third monostable multivibrator MM3, and the second monostable multivibrator MM is 1 monostable multivibrator MM,
Similarly, the rising edge of the input signal is detected, a shot signal is output, and this is given to the timer TM. The third monostable multivibrator MM detects the falling edge of the shot signal input from the first monostable multivibrator MMI, outputs the shot signal, and transmits the shot signal to the reset terminal R of the flip-flop FFe. give to

Timer TM is a second monostable multivibrator MM
, the time is measured from the time when the shot signal from ,
Output to e.

Therefore, when the acoustic stop/inhibit switch SW1 is operated for a predetermined time T or less, the third monostable multivibrator MM3 first detects the falling edge and flips the shot signal. Flop FFc
output to the reset terminal R of the flip-flop FF.
c has been reset. Thereafter, when the timer TM outputs the shot signal after 3 seconds have elapsed, the sound stop/inhibit switch SWl has not been operated, so there is no high potential from the sound stop/inhibit switch SWI, and the AND gate ANDc is Since it does not output a high potential, flip-flop FFc is never set. If flip-flop FFc is not set, the output from the Q terminal is a low potential, so amplifiers AMI to A M n are locked. In other words, the output is not inhibited and the normal amplification effect is performed, so the sound is not inhibited.

However, if the sound stop/inhibit switch SW1 is operated for a predetermined period of time, that is, 3 seconds or more (Y in block 104), a shot signal from the timer TM is output to the AND gate A N D a. At the time when the sound is stopped/inhibited, the high potential signal from the sound stop/inhibition switch SW1 is still being applied to the AND6.
Therefore, the AND gate A N D c outputs a high potential to the set terminal S of the flip-flop FFc, which sets the flip-flop FFc to output a high potential from the terminal Q. Amplifiers AM, ~AMn are locked by this high potential signal from terminal Q, and do not pass the ringing cause signal sent from any terminal device.
So-called sound is prohibited (block 113), and the high potential output from terminal Q of flip-flop FFc is L.
The LED lighting drive circuit 26b in the ED control circuit 26 is also energized, thereby lighting the LED 24 (block 1).
15).

To reset the sound prohibition, it is sufficient to operate the sound stop/inhibition switch SW1 for a short time, and as a result, as mentioned above, the flip-flop FFc is activated by the falling detection signal of the third monostable multivibrator MM3. Since it is reset and a low potential is output from terminal Q,
Amplifiers A M , ”-A M n are unlocked and sound inhibited (block 107).

The short-time operation of the sound stop/inhibit switch SWI has the sound stop function and the sound prohibition release function, so when the sound is stopped as shown in blocks 105 to 111 in FIG. The ban has also been lifted (
Block 107), for those with acoustic ringing factors (
Block 108), an acoustic stop will occur (Blocks 109 and 110).

To cancel both sound stop and sound prohibition, use the recovery switch SW! in Figure 1. is operated (block 116 in FIG. 2), and when the switch SW2 is operated, the high potential from the power supply BA resets the flip-flops FF, -FFn in each of the acoustic stop circuits 22-1 to 22-n. is applied to the input to reset the flip-flops, thereby opening the gates of the first AND gates ANDat-ANDan and returning to the normal acoustic ring-enabled state.

When the switch SW2 is operated, a high potential is also applied to the clear terminal of the seven flip-flop FF6 in the sound prohibition control circuit 18, clearing or resetting the flip-flop FFc. A low potential is output from the terminal Q of FFc, and the sound inhibition is canceled (block 117).At the same time, the output of the ringing factor signal of the receiving circuit 12 is held, and the LE
The flip 70-tube FFe of the D control circuit 26 is also reset.

[Effects of the Invention] As described above, according to the present invention, the operation of stopping the sound only for a sound source input and inhibiting the sound for all inputs can be performed using only the sound stop/inhibition switch. The operation is easy because the operation time of the sound stop/inhibition switch is changed so that if the operation is performed for a long time, the sound is prohibited, and if the operation is performed for a short time, the sound is stopped when the sound prohibition is canceled. This has the effect of minimizing the possibility of erroneous operation.

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram showing an acoustic control device for disaster prevention equipment according to an embodiment of the present invention, and FIG. 2 is a flowchart for explaining the operation of FIG.
0 is a receiver, 12 is a receiving circuit, 14 is an acoustic ringing circuit, 1
6 is an audio device, 18 is a sound prohibition control circuit, 20 is a sound amplification/inhibition circuit, 22-1 to 22-n are sound stop circuits, 2
4 is a light emitting diode, 26 is a light emitting diode control circuit,
SW1 is a sound stop/inhibition switch, SW2 is a recovery switch, and A N D b + "'- A N D bn is an AND gate.

Claims (4)

[Claims] (1) Disaster prevention equipment comprising a receiver and a plurality of terminal devices connected to the receiver, and configured to cause an audio device to ring when a ringing factor signal is received from at least one of the terminal devices. , a sound stop/inhibit switch, and a sound stop/inhibit switch connected to the sound stop/inhibit switch;
a sound stop circuit that operates to stop the sound of the audio device depending on a sound cause signal from a terminal device inputting the sound cause signal at the time of receiving the operation signal from the prohibition switch; When the audio stop/inhibit switch is connected to a switch and continues to be operated for a predetermined period of time or more, the audio device is prohibited from ringing in response to a ringing factor signal from any terminal device, and the When the sound stop/inhibition switch is operated for a time shorter than the predetermined time, a sound prohibition means operates to cancel the prohibition of the sound of the audio equipment; and when the sound stop/inhibition switch is operated, the sound prohibition means operates. A sound control device for disaster prevention equipment, comprising: a recovery switch that operates to prohibit the sounding of the audio equipment and to release the stoppage of the sound of the audio equipment caused by the sound stop circuit. (2) The sound prohibition means receives a signal from the sound stop/inhibit switch, and when the sound stop/inhibit switch is operated for less than a predetermined time,
a sound prohibition control circuit that outputs a second signal when the sound stop/inhibition switch continues to be operated for more than the predetermined time; When the first signal is received, the ringing factor signal is amplified and given to the audio equipment, and the second signal is amplified and given to the audio equipment.
2. The acoustic control circuit for disaster prevention equipment according to claim 1, further comprising: an acoustic amplification/inhibition circuit that cuts off connection of all of the ringing factor signals to the audio equipment when receiving the signal. (3) The sound stop circuit connects the AND gate to the AND gate which takes an AND operation signal from the sound stop/inhibition switch and the sound cause signal, and outputs a sound cause cutoff signal that cuts off the sound cause signal. An acoustic control device for disaster prevention equipment according to claim 1 or 2, which is provided corresponding to each of a plurality of terminal devices. (4) a light emitting diode, and a light emitting diode configured to blink when receiving the ringing factor signal from the sound stop circuit, and lighting the light emitting diode when receiving the second signal from the sound inhibiting means; 4. The acoustic control device for disaster prevention equipment according to claim 3, further comprising a light emitting diode control circuit that operates as a light emitting diode control circuit.