JPH0239395A - Fire receiver - Google Patents

Abstract

PURPOSE:To improve reliability by setting an area sound stop mode to an operation of an area sound stop switch in any of a usual time and a fire receiving time in a state that closing of a cover is detected, and also, in a state that opening of the cover is detected at the fire receiving time. CONSTITUTION:At the time of inspection, opening of a cover is detected, an area sound stop mode is set, and sounding of an area sound by an operation test in the course of inspection can be inhibited. On the other hand, the inspection is ended and when a cover 46 is closed without releasing an area sound stop switch, an area sound stop mode is released forcibly. Thereafter, fire receiving is executed, and when a setting operation of the area sound stop switch 36 is executed after an area sound is sounded, closing of the cover is discriminated, it is discriminated that fire receiving is being executed and the area sound stop mode is set effectively, and the area sound sounded by fire receiving can be stopped effectively. Also, in case when the area sound stop switch 36 has been operated again, a restoring operation is discriminated, and setting of the area sound stop mode is released.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fire receiver with a district acoustic stop switch.

[Prior Art] Conventionally, in this type of fire receiver, a main sound stop switch and a district sound stop switch were provided on the receiver panel surface, while switches used during inspection were installed on the receiver panel surface. It is placed inside a cover that can be opened and closed freely.

By the way, during inspection, open the cover provided on the receiver panel, set the test mode by operating the test mode setting switch installed inside the cover, specifically the test recovery switch, etc., and perform the necessary tests. Perform the operation. at the same time,
In order to prevent the district sound from sounding during the test operation of the fire receiver, the district sound stop switch is operated to set the district M''J stop mode during inspection.

[Problems to be Solved by the Invention] However, with such conventional fire receivers, there are cases where the district sound stop switch is erroneously operated during steady monitoring, or when the district sound stop switch is not released at the end of inspection. If this was forgotten, there was a problem in which the district sound could no longer be sounded when a fire was received during steady monitoring.

The present invention has been made in view of these conventional problems, and it is possible to reliably issue a district acoustic alarm when a fire is received, even if the district acoustic stop switch is operated incorrectly or if restoration is forgotten. The purpose is to provide a reliable fire receiver capable of providing district acoustic shutdown.

[Means for Solving the Problems] In order to achieve this object, the present invention provides a fire receiver in which various switches used during inspection are arranged in a cover that is openable and closable on the front of the receiver. detection means for detecting the opening and closing of the cover; in a state in which the detection means detects the closing of the cover, and in normal times, setting of the district sound stop mode is prohibited in response to the operation of the district sound stop switch, and the closing of the cover is detected; When a fire is received and the district sound stop switch is operated, the district sound stop mode is set, and when the cover is detected to be opened, the district sound stop switch is set to be set to the district sound stop mode regardless of whether it is normal or when a fire is received. In contrast, a control means for setting a district sound stop mode is provided.

Furthermore, in the present invention, in a fire receiver equipped with a test mode setting switch for setting a test mode, a detection means for detecting operation of the test mode setting switch; a state in which there is no detection output of the detection means; and prohibits the setting of the district sound stop mode in response to the operation of the district sound stop switch during normal times, and sets the district sound stop mode in response to the operation of the district sound stop switch when there is no detection output of the detection means and when a fire is received. and a control means for setting the district sound stop mode in response to the operation of the district sound stop switch when there is a detection output from the detection means, both in normal times and when a fire is received. I'll go.

[Function] With the fire receiver of the present invention having such a configuration, it is possible to operate the district sound stop switch with the cover closed during normal times, or forget to restore the district sound stop switch after inspection. Even if the cover is closed, the setting of the district sound stop mode is prohibited based on the detection of the cover closed state, and on the other hand,
It is possible to reliably sound the district sound when a fire is detected.

Furthermore, regardless of whether or not the cover is opened or closed, when a fire signal is received, the district sound stop mode can be set, and the district sound can be stopped by operating the district sound stop switch.

On the other hand, at the time of inspection, when the cover is heard, the district sound stop mode can be set in response to the operation of the district sound stop switch, thereby reliably preventing the district Tjj'J from being issued due to the test operation.

Furthermore, by detecting the operation state of the test mode setting switch instead of detecting the opening/closing of the cover, it is possible to similarly prohibit or enable setting of the district sound stop mode.

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

In FIG. 1, 10 is a fire receiver, and from the fire receiver 10 are detector lines 12a and 12b.

...12n is drawn out for each warning area, and one or more fire detectors are connected to each detector line. In this embodiment, a heat sensor 14 is connected to the sensor line 12a, and a smoke sensor 15 is connected to the sensor line 12n.

For fire reception 10, a reception section 16 is provided.

Sensor lines 12a to 12n are connected to the receiving unit 16,
When a fire is detected by a fire detector connected to one of the sensor lines, the receiver 16 detects the alarm line and generates a reception output. The received output of the receiving section 16 is input to the CPU 20 via the interface 18. CPU20
is equipped with a fire reception alarm display based on the received output from the receiving unit 16 and a predetermined control function based on operation signals of a plurality of operation switches. The CPU 20 is provided with a storage section 22 that stores data necessary for controlling various receivers.

Further, the CPU 20 is connected to a drive circuit for a main sound device 26 consisting of, for example, a buzzer and a district sound device ringing relay 28 via an interface 24.
The main sound device 26 is sounded by the control output of U20, and the district sound device sound relay 28 corresponding to the alarm line is activated.
is driven to generate district sound. The district sound device ringing relay 28 and its drive circuit are connected to the sensor line 12a~
A plurality of them are provided corresponding to 12n.

Furthermore, a display section 32 is connected to the CPU 20 via an interface 30. The display unit 32 is provided with various indicator lights such as a representative fire light, district lights corresponding to the sensor lines 12a to 12n, an AC power light necessary for maintenance and management of the receiver, and a sensor line disconnection light.

On the other hand, various operation switches are connected to the CPU 20 via an interface 34. In FIG. 1, the district sound stop switch 36 and the test recovery switch 38 are shown.
Indicates the connection status. Further, for the interface 34, there is a detection switch 40 for detecting the open/closed state of a cover provided on the receiver panel so as to be freely openable and closable, which will be explained later.
For example, when the cover is closed, the detection switch 40 is turned off as shown in the figure, and when the cover is opened, the detection switch 40 is turned on. Therefore, the CPU 20 can detect whether the cover is opened or closed by checking whether the detection switch 40 is on or off.

FIG. 2 shows a front view of the fire receiver of the present invention.

In FIG. 2, the receiving panel 10a of the fire receiver 10 is provided with, for example, five district lights 42a to 42e as district lights corresponding to the detector line, and district lights 428 to 4.
A main sound stop switch 44 using a non-locking type switch and a district sound stop switch 36 are arranged below the switch 2e. Further, a display section 48 is provided above the district lights 42a to 42e, and the display section 48 is provided with, for example, an AC power supply light, a switch caution light, a sensor wire breakage light, a circuit voltage light, a storage status light, and the like.

Furthermore, the receiver panel surface 1 on the right side of the district lights 42a to 42e
0a is provided with a cover 46 that can be opened and closed.
Various switches used during inspections are placed inside.

For example, inside the cover 40 are switches used during inspection, such as a backup power test switch 50 and an accumulation test switch 5.
2. A fire operation test switch 54, a test recovery switch 38 shown in FIG. 1, a disconnection detection rotary switch 56 are provided, and a fire recovery switch 58 is further provided to collectively restore the receiver status to a steady monitoring condition. .

Furthermore, a detection switch 40 for detecting opening/closing of the cover 46 is provided inside the cover 46. For example, the detection switch 40 has a switch knob protruding into the cover, and when the cover 46 is closed, the switch knob is pushed in and the detection switch 4
0 is switched off and the cover 46 is turned off as shown.
When you hear this, the switch knob will be pushed out and the detection switch 40 will be activated.
is switched on.

Of course, as the detection switch 40, in addition to a switch that is turned on and off mechanically by opening and closing the cover 46, an appropriate switch such as a combination of a permanent magnet and a reed switch, a proximity switch, or an optical switch may be used. be able to.

Here, the test recovery switch 38 provided inside the cover 46 has a function as a test mode setting switch that sets the test mode during inspection, and when it is pushed to the test recovery position, the accumulation operation in the fire receiver 10 is not performed. The fire is activated immediately, and the receiver 10 is also restored at the same time as the sensor that issued the test alarm is restored.

Referring again to FIG. 1, the CP installed in the fire receiver 10
U20 is a detection switch 4 that detects opening/closing of the cover 46.
It has the following control functions for each switch signal of 0 and the district sound stop switch 36.

(A> Function that prohibits the setting of the district sound stop mode when operating the district sound stop switch 36 in a state where the detection switch 40 detects the closure of the cover 46 and in normal conditions; (B) The detection switch 40 prevents the cover 46 from being closed. When a fire is detected and a fire is received, the district sound stop switch 3 is activated.
Function to set the district sound stop mode for operation 6: (C) When the detection switch 40 detects the opening of the cover, and when the district sound stop switch 36 is operated in both normal times and when a fire is received. On the other hand, the CPU 20 has the function of setting the district sound stop mode;
In addition to the control based on the detection state of the detection switch 40 that detects the opening/closing of the cover in C), a test recovery switch (test mode setting switch) 3B is used instead of the cover detection switch 400.
The following controls are enabled based on the switch state of .

(a> Function to prohibit the setting of the district sound stop mode in response to the operation of the district sound stop switch 36 under normal conditions when there is no detection output of the test recovery switch 38 (test recovery cancel state); (b) Test recovery switch 38 Function to set the district sound stop mode in response to the operation of the district sound stop switch 36 when there is no detection output (test recovery canceled state) and when a fire is received; (C) Normal when there is a detection output of the test recovery switch 38 A function to set the district sound stop mode in response to the operation of the district sound stop switch 36 regardless of whether the fire is detected or when a fire is received. 40 is an operation flowchart showing setting or prohibition control of the district sound stop mode based on the detection state of No. 40. FIG.

In FIG. 3, first in step S1, it is determined whether or not the district sound stop switch 36 has been operated, and when the district sound stop switch 36 is operated to stop the district sound or release the district sound stop, the process advances to step S2. It is determined whether the setting operation is to stop the district sound. When it is determined in step S2 that the setting operation for stopping the district sound is performed, the process proceeds to step S3, where it is determined whether the cover 46 is in the closed state. Since this cover 46 is in the closed state, the process proceeds to step S4 to determine whether or not fire reception is in progress.Since fire reception is not in progress, the process proceeds to step S5 to prohibit the setting of the district sound stop mode.

In other words, even if the district sound stop switch 36 is accidentally operated in the steady monitoring state when fire reception is not in progress, the district sound stop mode will not be set, and the district sound stop will be performed due to the erroneous operation in the steady monitoring state. to ensure prevention.

On the other hand, if the setting operation of the district sound stop switch 36 is performed after the district sound is sounded due to fire reception, it is determined in step S4 that fire reception is in progress, and the process proceeds to step S6, where the district sound stop mode is set. By setting this, it is possible to effectively stop the sound in the area.

On the other hand, during inspection, as shown in Figure 2, the cover 4
Since the cover 46 is open, the cover 46 is opened for the operation test.
If the setting operation of the district sound stop switch 36 is performed while listening to the above, the opening of the cover is detected in step $3 and the process proceeds to step S6, where the district sound stop mode is set and the district sound stop switch 36 is set by the operation test during inspection. Ringing can be prohibited.

On the other hand, if the cover 46 is closed after the inspection is completed without restoring the district sound stop switch, the district sound stop mode is canceled to the strong 1 purpose. If a fire reception is subsequently performed and the district sound stop switch 36 is set after the district sound is sounded, it is determined in step S3 that the cover is closed, the process proceeds to step S4, and in step S4 the fire reception is in progress. is determined, the process proceeds to step S6, where the district sound stop mode is set to be valid, and it is possible to effectively stop the district sound that is emitted due to fire reception.

Furthermore, if the district sound stop switch 36 is operated again in the state where the district sound stop mode is set in step S6, a restoration operation is determined in step S2, and the process proceeds to step S7, where the setting of the district sound stop mode is canceled. It will be done.

FIG. 4 shows the setting and prohibition control of the district sound stop mode using the detection state of the test recovery switch (test mode setting switch) 38 instead of the detection switch 40 that detects the opening/closing of the cover 46 in the embodiment shown in FIG. This is an operation flow diagram showing the following.

In the operation flowchart of FIG. 4, first, when the test recovery switch 38 is in the recovery position, the district sound stop switch 3
6, this operation is determined in step S1, and the process proceeds to step S2. Since it is a setting operation, the process proceeds to step S3, where it is determined whether or not the test recovery switch 3B has been operated, and the test recovery switch 38 is Since it is not being operated, the process proceeds to step S4, where it is determined whether or not fire reception is in progress.Since the fire reception is not in progress, the process proceeds to step S5, where setting of the district sound stop mode is prohibited.

For this reason, in the steady monitoring state, the district sound stop switch 3 was accidentally turned off.
Even if the setting operation 6 is performed, the district sound stop mode is not set, and the district Me can be reliably sounded when a fire is received.

Of course, if the stop operation of the district sound stop switch 36 is performed after the district sound is sounded due to fire reception, it is determined in step S4 that fire reception is in progress, and the process proceeds to step S6, where the district eJj4 stop mode is activated. You can enable it and stop the district sound.

On the other hand, during inspection, as shown in FIG.
If the test recovery switch 38 is opened and operated to the test recovery position, and the district sound stop switch 36 is set to stop the district sound due to the test operation, the test restoration switch 38 is set in step S3. If it is determined that the operation has been completed, the process proceeds to step S6, and even if the district sound stop mode is enabled and a test operation is performed, the district sound will not be emitted.

Of course, if the district sound stop switch 36 is operated to recover while the district sound stop mode is set, the restoration operation is determined in step S2, and the setting of the district sound stop mode is canceled in step S7.

In the second embodiment of the present invention shown in the operation flowchart of FIG. 4, a test recovery switch 38 is used as the test mode setting switch to release accumulation in the receiver. The switch is not limited to this, but a switch used at the time of appropriate inspection or a dedicated test mode setting switch may be used.

[Effects of the Invention] As explained above, according to the present invention, it is possible to operate the district@suga stop switch with the cover closed during normal times,
Even if you forget to restore the district sound stop switch after the inspection and close the cover, the setting of the district sound stop mode is prohibited based on the detection of the cover being closed, making it possible to reliably sound the district sound when a fire is detected. Furthermore, regardless of whether the cover is open or closed, the district sound stop mode can be set when a fire signal is received, and when a fire is received, the district sound system can be reliably stopped by operating the district sound stop switch.

On the other hand, when the cover is opened during inspection, the district sound stop mode can be effectively set for the operation of the district sound stop switch, thereby reliably preventing the district sound from being emitted during the test operation.

Furthermore, by detecting the operation state of the test mode setting switch instead of detecting the opening/closing of the cover, it is possible to similarly obtain a state in which setting of the district sound stop mode is prohibited or possible.

[Brief explanation of the drawing]

Fig. 1 is a circuit block diagram showing an embodiment of the present invention; Fig. 2 is a front view showing an embodiment of the fire receiver of the present invention; Fig. 3 is a setting of the district sound stop mode according to the present invention. and an operational flow diagram showing one embodiment of the setting prohibition control: FIG. 4 is an operational flow diagram showing another embodiment of the district sound stop mode setting and setting prohibition control according to the present invention. 10: Fire receiver 128-12n: Detector line 14: Heat detector 15: Smoke detector 16: Receiving unit 18.24, 30.34: Interface 20: cp
u 22: Storage section 26: Main sound device 28: District sound device ringing relay 32: Display section 36: District sound stop switch 38: Test recovery switch (test mode setting switch) °
48: a to 42e: District light main sound stop switch Cover display section Reserve power test switch Accumulation test switch Fire operation test switch Disconnection detection rotary switch

Claims (1)

[Claims] 1. In a fire receiver in which various switches used during inspection are arranged in a cover that can be opened and closed on the front surface of the receiver, a detection means for detecting opening and closing of the cover; When the cover is detected to be closed and a fire is detected, setting the district sound stop mode is prohibited when operating the district sound stop switch, and when a fire is detected and the cover is closed, the district sound stop switch is prohibited from being set A control that sets the district sound stop mode for the operation of the district sound stop switch, and further sets the district sound stop mode in response to the operation of the district sound stop switch, whether in normal times or when a fire is received, if the cover is detected to be open. A fire receiver comprising means and; 2. In a fire receiver equipped with a test mode setting switch for setting a test mode, a detection means for detecting the operation of the test mode setting switch; Prohibiting the setting of the district sound stop mode in response to the operation of the stop switch, setting the district sound stop mode in response to the operation of the district sound stop switch when there is no detection output of the detection means and when a fire is received; A fire receiver comprising: a control means for setting a district sound stop mode in response to the operation of a district sound stop switch both in normal times and when a fire is received with a detection output of;