JPH0388100A - fire receiver - Google Patents

Abstract

PURPOSE:To surely release a district bell stop switch during the period of accumulation by outputting a voice prompting the lease of a district bell stopped state when accumulating operation is started at he time of receiving a fire signal. CONSTITUTION:When the first fire signal is inputted by a fire alarm, an accumulation display lamp 21 is turned on by the output of the 1st latch 30 through an accumulation lamp control part 46, and if a district bell stop switch 29 is ON, a voice for prompting the release of the switch 29 is outputted through a voice message output control 48. When a 2nd fire signal is inputted, an alarm control part 44 turns on a fire lamp 18 and corresponding one of district lamps 20a to 20n based on the signal outputted from the 2nd latch 32 through an AND gate 42 and sounds a corresponding district bell out of bells 28a to 28n. When the switch 29 is ON, the bells 28a to 28n are not founded, but the release of the bells 28a to 28n can be surely executed by a voice prompting the release of the bells 28a to 28n.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a fire and fire receiver that performs warning guidance when a district bell is stopped.

[Prior Art] Conventionally, in this type of fire receiver, in order to prevent the district bell from ringing by mistake, an administrator or the like operates a district bell stop switch provided on the receiver to stop the district bell. There are things to do. Therefore, when a fire is received, it is necessary to cancel the district bell suspension state.

In addition, when inspecting fire alarm equipment, the district bell is similarly disabled, and it is released after the inspection is completed, but it is not uncommon for the district bell to be disabled and forgotten to do so.

Therefore, in order to notify that the district bell is stopped when a fire is received or at the end of an inspection, the warning switch light installed on the receiver is turned on even when the district bell is stopped to warn the district. It is considered that a warning sound will sound when the bell is stopped.

[Problems to be Solved by the Invention] However, when warning that the district bell is stopped using a switch caution light provided in such a conventional fire receiver, the switch caution light does not allow the switch to operate other than the district bell stop switch. Since the warning light is also used as a representative warning light, it is difficult to tell whether the district bell stop switch has been operated even if the warning light is on.

Furthermore, in the case where a warning sound is to be sounded when the district bell is stopped, the warning sound is sounded every time the district bell stop switch is operated, which is an annoying problem.

The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a fire receiver that effectively provides caution guidance when the district bell is stopped.

[Means for Solving the Problem] First, the present invention connects a fire detector to a plurality of detector lines drawn out to a monitoring area, receives fire signals from the fire detector, and accumulates them for a predetermined period of time. , targeting fire receivers that issue an alarm when it is determined that there is a fire.

In the present invention, for such a storage type fire receiver,
A voice message output control unit that operates a voice synthesis output circuit to output a voice message from a speaker to urge cancellation of the district bell stop state when the district bell is in a stopped state due to operation of a district bell stop switch and while fire signals are being accumulated. It was designed to be provided.

[Function] According to the fire receiver of the present invention having such a configuration,
When the accumulation operation is started due to the reception of a fire signal, if the district bell is in a stopped state, a voice message prompting you to release the district bell, for example, ``The district bell is stopped, please cancel it.'' During the accumulation of the output from the speaker until the fire alarm is finally issued, the district bell stop switch can be appropriately released if necessary.

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

In Fig. 1, 1 is a fire receiver equipped with a storage reception function, and from the fire receiver 1, a plurality of detector lines 2a, 2b, . One or more fire detectors 4 are connected between the detector lines 2a to 2n and the common line 3, and a terminating resistor 5 for detecting disconnection is connected to the end of the detector line.

Each of the sensor lines 2a to 2n incorporated into the fire receiver 1 has a resistor 7 and a cutoff circuit 22a.

22b, . . . 22n, and further connected to the positive side of the power supply via the recovery switch 8.

Further, the sensor lines 2a to 2n are branched before the resistor 7 in the receiver and input to the selection circuit 9.

The selection circuit 9 includes an analog switch SL corresponding to each sensor line, 32. ...Sn is provided,
The output sides of the analog switches 81 to Sn are commonly connected and input to the detection circuit 10. Analog switch 81~S
For each of n, the selection control line 26 is sent from the CPU 12.
a, 26b, .

The detection circuit 10 has a fire detection function and a disconnection detection function.

The input voltage of the sensor lines 2a to 2n to the selection circuit 9 is a predetermined divided voltage by the resistor 7 and the terminating resistor 5 in the steady monitoring state.

When the fire detector 4 is activated, the detector line is short-circuited to the common line 3 to a low impedance, and the voltage obtained from the selection circuit 9 becomes approximately zero volts, thereby detecting a fire. Furthermore, in the event of a disconnection, the voltage from the selection circuit 9 rises to approximately the power supply voltage of the receiver, so the disconnection is detected by capturing this rise to the power supply voltage.

The CPU 12 performs predetermined fire reception processing under program control, and in this embodiment, the CPU 12 performs fire signal accumulation reception control and fire alarm control including ringing of the district bell when a fire is determined by the accumulation reception control. Furthermore, voice message output control according to the present invention operates the voice synthesis output circuit 25 while the district bell is stopped and fire signals are being accumulated to output a voice message from the speaker 27 urging cancellation of the district bell stopped state. It has a control function as a section.

In order to realize this voice message output control function, the CP
A district bell stop switch 29 is connected to U12, and a voice synthesis output circuit 25 and a speaker 27 are also provided. Of course, the CPU 12 also has the function of sending an activation signal to the district bell connected to a bell wire (not shown) to ring the district bell when a fire is determined, and when the district bell stop switch 29 is activated. When off, the district bell rings.

Furthermore, a fire light 18 and a sensor line 2 are connected to the CPU 12.
District lights 20a provided every a to 2n.

20b, . . . , 20n1 is connected to the storage device 21 which indicates that the storage operation is in progress.

On the other hand, a cutoff circuit 22 provided for each sensor line 2 to 2n
For a to 22n, AND gates 23a, 23b,
... 23n is provided, AND game) 23a to 23
The selection control lines 26a to 26n for the selection circuit 9 are individually input to n, and the recovery control line 2 from the CPU 2 is input to n.
4 is commonly input. These AND gates 23a-23
The interruption control of the interruption circuits 22a to 22n by CP
In U12. Used in storage reception control.

Here, the storage reception control by the CPU 12 will be explained.
It will look like this:

FIG. 3 is a timing chart showing the accumulation operation when a fire is received. If a fire signal is received from, for example, the sensor line 2a at time t1, the CPU 12
1 timer and T2 timer are activated. The T1 timer has a set time of, for example, T1-10 seconds, while the T2 timer has a set time of, for example, T2=50 seconds. Also,
Upon receiving the fire signal from the detector line 2a, the CPU 12 temporarily suspends the selection control of the selection circuit 9.

At time t2, 10 seconds determined by the T1 timer have elapsed since the fire reception time tl, the CPU 12 outputs an H level output to the recovery control line 25, and since the selection control line 26n is at the H level at this time, the AND gate 23a is activated. An H level output is generated, and the power supply to the sensor line 2a receiving the fire signal is cut off for a certain period of time, for example, time T3, by the cutoff operation of the cutoff circuit 22a, that is, the switch off. This cut-off time T3 is set by the same T3 timer built into the CPU 12. At time t3, when the power cut-off time T3 has elapsed, the CPU 12 stops outputting the H level to the recovery control line 24, turns the cut-off circuit 22a back on, and restores the power supply to the sensor line 2a. The selection control of 9 is restarted.

At this time, if the fire detector 4 continues to be in the fire detection state, a second fire signal is obtained from the detector line 2a again at time t4, which is a predetermined time delay after power restoration at time t3. Based on this second fire signal, the CPU 12 determines that there is a fire.

Note that if the fire signal is not received after the power is restored at time t4, the accumulated reception state is canceled at time t5 when the set time of the T2 timer has elapsed, and the normal fire monitoring state is returned.

Moreover, the accumulated light 21 is lit from the reception of the first fire alarm at time t1 until the fire judgment at time t4. Further, the fire light 18 and the district light 20a corresponding to the sensor line 2a are turned on when a fire is determined at time t4. Incidentally, when the second fire signal is not obtained, the accumulated light 21 is turned off at time t5 when 72 hours have elapsed according to the T2 timer.

FIG. 2 is a block diagram of an embodiment of the main components of the present invention realized by program control of the CPU 12 provided in the receiver 1 of FIG.

In FIG. 2, the control unit 100 realized by program control of the CPU 12 includes a first alarm latch circuit 30 that latches the first alarm fire signal, and a second alarm latch circuit 30 that latches the first alarm fire signal, and a second alarm signal that is received after the power is restored by the cutoff circuit. A second alarm latch circuit 32 is provided to latch the fire signal.

The latch output of the first signal latch circuit 30 is the T1 timer 34.
and is input to the T2 timer 36 to start the timer.

Here, the T1 timer 34 has a set time of T1=10 seconds, for example, and the T2 timer 36 has a set time of T2=50 seconds, for example.

The output of the Tl timer 34 is given to the T3 timer 38,
The T3 timer 38 is activated in response to the timer output at time-up, which is 10 seconds after the T1 timer 34 is activated in response to the first latch output. The output of the T3 timer 38 is given to the recovery control unit 40, and the recovery control unit 40 outputs an H level output to the recovery control line 25 in FIG. 1 for T=1 second while the timer output of the T3 timer 38 is obtained. arise.

The output of the second signal latch circuit 32 and T2 timer 36 is A
When the second signal latch output is input to the ND gate 42 and the T2 timer 36 is in operation and the timer output is at the H level, and the second signal latch output is also at the H level from the second signal latch circuit 32, the AND gate is output. 42 determines that there is a fire and outputs a fire determination signal that becomes H level.

The fire judgment signal from the AND gate 42 is sent to the alarm control section 44.
given to. The fire light 18, district lights 20a to 20n1, and district bells 28a to 28n are connected to the alarm control unit 44, and when a fire judgment signal is obtained, the fire light 18 is turned on and the district lights corresponding to the fire signal receiving line are connected. lights up, and if the stop is released by the district bell stop switch 29, the district bell of a predetermined district is rung in response to the detector line that received the fire signal.

Reference numeral 46 denotes an accumulation production control unit, to which the accumulation production 21 is connected, receives the latch output from the first latch circuit 30, lights up the accumulation production 21, and receives the fire judgment signal from the AND gate 42 or T2. The light is turned off when the timer output of the timer 36 is stopped.

Reference numeral 48 denotes a voice message output control section which, when receiving the latch output of the first latch circuit 30, activates the voice synthesis output circuit 25 on the condition that the district bell stop switch 29 is operated to stop the district bell. When activated, the speaker 27 outputs a voice message urging cancellation of the district bell suspension, for example, a voice message such as "The district bell is suspended. Please cancel it." Voice message output control section 48
When receiving a fire judgment signal from the AND gate 42, or when receiving a change in the timer output due to time-up of the T2 timer 36 after 50 seconds have elapsed since receiving the first alarm without receiving a fire judgment signal from the AND gate 42, The operation of the speech synthesis output circuit 25 is stopped.

Of course, if the district bell stop switch 29 is released while the voice message is being output, the voice synthesis output circuit 25 will stop outputting the message.

FIG. 4 is an operational flowchart showing the control process of caution guidance regarding the operation state of the district bell stop switch by the main part of the present invention shown in FIG. 2.

In FIG. 4, the presence or absence of fire reception is first determined by Sl, and when the first fire report is received, the process advances to 82.
The T1 timer 34 and T2 timer 36 are started.

At the same time, at 33, the accumulated production 21 is turned on, and at the next step 84, it is determined whether or not the district bell is in a stopped state.

When it is determined in S4 that the district bell is in a stopped state, S4
Proceed to step 5 to start outputting the voice message.

Therefore, as shown in the timing chart of FIG. 3, when the first fire report is received at time t1, the output of the voice message is started at the same time as the storage product 21 is turned on.

Referring again to FIG. 4, when the output of the voice message is started in S5, the time-up of the T1 timer 34 is monitored in the next S6, and when 10 seconds have elapsed since the first message was received, the T1 timer 34 is When the time has expired, the process proceeds to S7, where the power supply to the detector line that has received the fire signal is cut off for one second determined by the T3 timer 38 under the control of the recovery control unit 40.

When the temporary power supply interruption control to the sensor line is completed in S7, the process of checking whether the second fire report has been received in S8 and at the same time checking the time-up of the T2 timer 36 in S9 is repeated. This S8. When it is determined in the processing cycle of S9 that the second fire signal has been received, S
8 to 810, the fire light 18 is turned on, the corresponding district light is turned on, and the district bell stop state is canceled by operating the district bell stop switch 27 after receiving caution guidance from the voice message being accumulated. , a fire alarm display will be made by ringing the corresponding district bell. At the same time, the output of the voice message is stopped, and the storage output 21 is also turned off, and after the above processing is completed, the process returns to the fire reception of the Sl.

On the other hand, S8. If the second fire report is not received in the processing cycle of S9 and the T2 timer 36 times out after the set time of 50 seconds has elapsed, the process proceeds to Sll, stops the output of the voice message, and turns off the accumulated output 21. After, S
Returning to the fire reception monitoring process of L.

Of course, when the district bell is not in the stopped state in S4, the voice message output in S5 is not performed, and the voice message stop processing in SIO or 811 is unnecessary.

Further, when the district bell stop state is canceled by operating the district bell stop switch 26 after the output of the voice message is started in S5 and until the end of storage, the output of the voice message is stopped by interrupt processing. Regarding the stoppage of the output of voice messages associated with this operation to cancel the stoppage of the district bell, after the output of the voice message stops, a voice message indicating that the stoppage of the district bell has been canceled, such as "The stoppage of the district bell has been cancelled." may be output for confirmation.

Further, the above embodiment takes as an example an accumulation reception in which the power supply is cut off for a certain period of time after receiving the first fire signal, and when the second signal is received after the power is restored, it is determined that there is a fire. However, the accumulation reception function operates an accumulation timer for a predetermined period of time upon reception of a fire signal without cutting off the power supply to the detector line, and determines that there is a fire if a fire signal is continuously obtained when the time is up. It can also be applied to receivers equipped with.

[Effects of the Invention] As described above, according to the present invention, when the accumulation operation is started upon reception of a fire signal, when the district bell is in a stopped state, a voice message is sent from the speaker to urge the district bell to be released from the stopped state. The district bell stop switch can be reliably released during the accumulation period until the fire is finally determined to be a fire and a fire alarm is issued.

[Brief explanation of drawings]

Fig. 1 is an embodiment configuration diagram showing one embodiment of the present invention; Fig. 2
FIG. 3 is a control timing chart of the present invention; FIG. 4 is an operation flow diagram showing control processing of the present invention. 1: Storage type fire receiver 2a to 2n: Detector line 3: Common line 4: Fire detector 5: Terminal resistor 8: Recovery switch 9: Selection circuit 10: Detection circuit 12: CPU 18: Fire light 20a to 20n: District light 21: Accumulated production 22a to 22n: Cutoff circuit 23a to 23n, 42: AND gate 24: Recovery control line 25: Voice synthesis output circuit 26a to 26n: Selection control line 27: District bell stop switch 28a to 28n: District Bell 29: District bell stop switch 30: First signal latch circuit 32: Second signal latch circuit 34: T1 timer 36: T2 timer 38: T3 timer 40: Recovery control section 44: Alarm control section 46: Accumulation production Control unit 48: Voice message output control unit 100: Control unit

Claims (1)

[Claims] 1. Fire reception, in which a fire detector is connected to multiple sensor lines drawn out to the monitoring area, receives fire signals from the fire detector, accumulates them for a predetermined period of time, and issues an alarm when it is determined that there is a fire. A sound that activates the voice synthesis output circuit and outputs a voice message from the speaker to urge the district bell to be released from the district bell halt state when the district bell is stopped by operating the district bell stop switch and fire signals are being accumulated. A fire receiver characterized by being provided with a message output control section.