JP3022220B2 - Evacuation guidance device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an evacuation guidance device that generates a guidance sound from a guidance light provided at an emergency exit to guide an evacuated person to the emergency exit.

[0002]

2. Description of the Related Art Conventionally, as a guide light which is provided at an emergency exit and provides voice guidance in the event of a fire, for example, Japanese Patent Laid-Open No.
There are 67805 and JP-A-3-20903. In addition, the guide light is provided with a smoke detector.
This smoke detector is to confirm the safety of the evacuation route at the emergency exit.For example, if the emergency exit is the emergency stairs,
It is located on the next lower stairs. FIG. 1 is a perspective view of the guide light.
FIG. 2 is a block diagram showing an electrical configuration related to the guidance sound. The guide light 1 has a guide display panel 3 attached to both sides or one side of a box-shaped appliance main body 2, and a panel 4 having a plurality of holes formed beside the guide display panel 3. A speaker 5 is provided on the back surface of the panel 4 in the instrument body 2, and the speaker 5 is connected to an audio unit 6. A blinking device 7 that lights up in an emergency is provided at a lower portion of the device main body 2.

Electrically, a commercial power supply 8 is connected to a charging circuit 11 composed of a transformer 9, a rectifier circuit 10, and a resistor 10a.
a and the storage battery 13 are connected. The storage unit 13 is connected to an audio unit 6 as an induction sound generation unit via a relay contact 12a. The audio unit 6 includes an audio generation circuit 14, a filter 15 for removing a sampling frequency, and an amplifier 16. . The relay 12 is connected to a relay control unit 17 controlled by an external signal.

Normally, the relay control unit 17 is powered, the relay 12 is energized, and the relay contact 12a connects the charging circuit 11 and the storage battery 13. At this time, the storage battery 13 is charged by the commercial power supply 7 and the charging circuit 11. When a fire occurs, a signal is input to the relay control unit 17, and the relay control unit 17 loses power.
2 is stopped and the relay contact 12a is switched to the sound unit 6
Switch to the side. At this time, power is supplied from the storage battery 13 to the audio unit 6, and the audio unit 6 operates to generate audio from the speaker 5.

The smoke detector 18 comprises a smoke detector controller 19 and a smoke detector 20, and the smoke detector controller 19
Is connected to the storage battery 13 via the relay contact 12a. When the guide light 1 is operated, electric power is also supplied to the smoke detector 18 to detect smoke. The smoke detector 18 is a storage type smoke detector, and outputs a stop signal to the sound unit 6 to stop sound when the smoke is continuously detected for several seconds (for example, 20 seconds).

[0006]

However, due to errors in the accuracy of parts used in the audio unit of the guide light, errors in the clock signal of the circuit, etc., even if the guide sound is initially generated at the same time, it takes several seconds. Later, the timing of the guidance sound of each guidance light was shifted. For this reason, for example, when a plurality of emergency exits are provided in a large hall or on the same floor, guidance sounds of a plurality of guide lights interfere with each other, and there is a possibility that a person who evacuates cannot be notified of the emergency exit accurately.

[0007] When an emergency broadcast is performed in the event of a fire, the guidance sound of the audio unit is temporarily stopped. At this time, the power supply to the audio unit was stopped by switching the relay contact to the charging circuit side, and at the same time, the power supply to the smoke detector was also stopped. Therefore, even if power is supplied after the emergency broadcast ends, it takes about 20 seconds before smoke is detected and sound is stopped. For this reason, even if the fire exits from the emergency exit, the person will be guided by voice for a few seconds, which may pose a danger to the evacuated person.

Accordingly, an object of the present invention is to provide an evacuation guidance device for guiding an evacuated person to an emergency exit by using a guidance sound so as to guide a evacuated person safely to an emergency exit by flowing a guidance sound clearly and accurately.

[0009]

According to a first aspect of the present invention, there is provided a fire detecting section for detecting a fire, and a method for determining the presence or absence of a fire based on a signal from the fire detecting section. A fire discriminator that generates a fire signal if a fire is detected, and outputs a start signal when the fire signal is input, and outputs a reset signal every time a predetermined time elapses after outputting the start signal. A signal device, a plurality of guide lights arranged near the emergency exit, and guiding the emergency exit by light, and provided on the guide light, generating a guide sound when the start signal or the reset signal is input. An evacuation guidance device having a guidance sound generating unit , wherein the start signal
Alternatively, the reset signal is transmitted to all of the plurality of guide lights.
Is output.

According to a second aspect of the present invention, the guide sound generating section generates a guide sound of a predetermined pattern, and the signal device outputs a reset signal every cycle of the pattern. It is an evacuation guidance device of a statement.

According to a third aspect of the present invention, there is provided a signal device for outputting a control signal in the event of a fire, a plurality of guide lights disposed near the emergency exit and guiding the emergency exit by light, and provided in the guide light. An emergency sound generator that generates an induction sound when the control signal is input, and a smoke detector that operates when the guide light is activated and outputs a sound stop signal to the guide light when smoke is detected. Occasionally, the guide sound of the guide light is stopped, and the smoke detector is an evacuation guide device that maintains an operating state.

[0012] Also, the guidance sound generator, together with first generating the guidance sound with silence, the signaling device, you output a reset signal at an interval shorter than the time of the silent portion at the time of emergency broadcast it is an evacuation guidance system.

[0013]

According to the first aspect of the present invention, when a fire signal is input to the signal device, a start signal is output to the guide light, and a guide sound is generated from the guide light. After outputting the start signal, the reset signal is output from the signaling device every time a predetermined time elapses, and the guidance sound is played from the beginning.

According to a second aspect of the present invention, after the start signal is output from the signal device, every time the induction sound elapses one cycle,
Outputs reset signal.

According to a third aspect of the present invention, when the control signal is output from the signaling device to the guide light, the guide light and the smoke detector operate. Then, when an emergency broadcast occurs, the guide sound of the guide light is stopped, and the smoke detector maintains the operating state.

[0016] Also, when the control signal from the signal device is outputted to guide lights, guide lights and smoke detector is activated. Then, when an emergency broadcast occurs, a reset signal is output to the guide light. Then, when the guidance sound is a silent part, the next reset signal is sent, and the state where the guidance sound is not generated continues. Then, no guidance sound is generated, but the smoke detector remains operating.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 is a block diagram of the evacuation guidance device. The same parts as those described with reference to FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof will be omitted.

Reference numeral 21 denotes a fire detector, such as a smoke detector and a flame detector, which are disposed at various places in the building to detect abnormalities such as smoke and heat. Reference numeral 22 denotes a fire determination unit to which a plurality of fire detection units 21 are connected, and determines the presence or absence of a fire based on a signal from the fire detection unit 21. The fire discrimination unit 22 is provided, for example, in a management room, and a manager constantly monitors the building for abnormalities. Reference numeral 23 denotes a signal device for generating a control signal, which is connected to the fire determination unit 22 and the plurality of guide lights 1. The signal unit 23 is provided with a timer unit 24, which measures the time from the output of the control signal to the guide light 1. A set time is set in the timer section 24,
When the timer section 24 has passed the set time, the signal device 23
And the timer is reset and the time is counted from the beginning. Reference numeral 25 denotes an emergency broadcast unit, which is connected to the signaling device 23. The emergency broadcast is for notifying the occurrence and situation of a fire in the event of a fire by in-house broadcast, and the emergency broadcast unit 25 is provided in, for example, a management room.

The external structure of the guide light 1 and the electrical configuration relating to the guide sound are the same as those shown in FIGS. FIG. 4 is a timing chart of the guidance sound. (A) is a control signal output from the signal device 23, (B) is a guide sound, and (C) is an emergency broadcast signal.

The content of the guide sound generated from the guide light 1 is determined by the standard, and comprises two warning sounds 26 and two sounds 27. The warning sound 26 is obtained by repeating twice a sound obtained by connecting two periodic composite waves having different fundamental frequencies. For example, the warning sound 26 is obtained by repeating a pin and a pawn twice. The content of the voice 27 is "The emergency exit is here." The length of the voice 27 is 1.6 to 1.8 seconds. Then, two warning sounds 26 and two sounds 27 are output as 1
The cycle L is one cycle L of about 8 seconds.
The time interval between the second sound 27 and the next warning sound 26 is about 0.9 seconds.

The control signals output from the signaling device 23 to the guide light 1 include a start signal 28 and a reset signal 29.
Normally, the signal device 23 sends a signal to the relay control unit 17 of the guide light 1.
, And while the signal is being input, the relay control unit 17 is powered. The start signal 28 makes this signal non-output, whereby the relay controller 17
Will have no power. The reset signal 29 has a pulse width of about 0.5.
2 seconds and while the reset signal 29 is being input,
The relay control unit 17 becomes powered.

Next, the operation of the evacuation guidance device will be described. When a fire occurs, the fire detector 21 detects an abnormality,
An abnormal signal is sent to the fire determining unit 22. The fire determining unit 22 determines the location and situation of the fire based on the abnormal signals sent from the plurality of fire detecting units 21, and sends a fire signal to the signaling device 23. The signal device 23 sends a start signal 28 to an appropriate guide light 1 for evacuation guidance of a person, and a timer unit 2
Start timing at 4. When the start signal 28 is input to the guide light 1, the relay control unit 17 loses power and the relay contact 12
a switches to the audio unit 6 side, and the audio unit 6
And the smoke detector 18 is powered. When power is supplied to the audio unit 6, the audio generation circuit 14 is activated, and a guidance sound is generated from the speaker 5 to guide an evacuated person. At this time, even when power is supplied to the voice generation circuit 14, since the silent portion M exists at the beginning of the guidance sound, it takes several seconds until the guidance sound is generated. When the relay contact 12a is switched, the smoke detector 18 also operates to detect whether or not there is smoke in the evacuation route ahead of the emergency exit. To stop the induction sound.

The set time of the timer section 24 is one of the induction sounds.
The cycle L is set, and when the set time has elapsed, a reset signal 29 is sent from the signaling device 23 to the guide light 1. Then, the timer unit 24 is reset, and performs time measurement again. Only while the reset signal 29 is being input, the relay control unit 17 becomes powered, and the reset signal 29
Is short, the relay control unit 17 is powered only for a short time. As a result, the power to the audio unit 6 is temporarily interrupted, and when the power is supplied again, the audio generation circuit 1
4 plays the guiding sound from the beginning. In this way, the guidance sound is reset and generated again, so that the guidance sounds of the plurality of guidance lights 1 are synchronized each time the reset signal 29 is input. In addition, since the pulse width of the reset signal 29 is short and the time during which power is not supplied from the storage battery 13 is short, power can be maintained by a capacitor or the like in the smoke detector control circuit 19, and the smoke detector 18 changes its operating state. to continue.

When performing an emergency broadcast, an emergency broadcast signal 30 is sent from the emergency broadcast section 25 to the signal device 23. The emergency broadcast signal 30 is always output during an emergency broadcast. When the emergency broadcast signal 30 is input, the signaling device 23 outputs a reset signal 29 to the guide light 1, and the timer unit 24 measures time. While the emergency broadcast signal 30 is being input, the timer unit 24
Is set to a time shorter than the time of the silent portion M of the guidance sound. When the set time has elapsed in the timer section 24, a reset signal 29 is output to the guide light 1 to reset the timer section 24. During the emergency broadcast, a plurality of reset signals 29 are input to the guide light 1. Since the interval of the reset signal 29 is shorter than the time of the silent portion M of the guide sound, the next reset signal 29 is input to the guide light 1 before the guide sound is generated, and no guide sound is generated. The state continues. Also, because of the short pulse width, the smoke detector 18 can continue operating. When the emergency broadcast ends, the emergency broadcast signal 3 is output to the signal device 23.
When the input of 0 disappears, the reset signal 29 is sent to the guide light 1 and the set time of the timer section 24 is changed to one cycle of the guide sound. Then, since the smoke detector 18 maintains the operating state, the smoke detector 18 which is detecting the smoke stops the operation of the guide light 1.

In the present invention, it is sufficient that the guidance sounds of the plurality of guidance lights 1 can be synchronized, and the reset signal 29 may be output every several cycles of the guidance sound.

[0026]

According to the first aspect of the present invention, since the guidance sounds of a plurality of guidance sounds can always be synchronized, there is no deviation of the guidance sounds of different guidance lights, and interference of the guidance sounds can be prevented. Therefore, the evacuated person can hear the guidance sound clearly, and the guidance to the emergency exit can be surely performed. Also, since a reset signal is sent to the guide light every predetermined time and synchronized,
By simply changing the signaling device, the present invention can be applied to already installed guide lights.

According to the second aspect of the present invention, one of the induced sounds
Since the reset signal is sent every cycle, the adjustment can be performed in a state where the deviation of the guidance sound is small, and the next guidance sound does not occur in the middle of the guidance sound.

According to the third aspect of the present invention, even if the guide sound of the guide light is stopped during an emergency broadcast, the smoke detector is still in operation. Therefore, after the emergency broadcast is over, there is no need for preparation time for the smoke detector to operate, and no guidance is performed if the emergency exit is a fire.

[0029] Also, the interval between each signal by entering the short reset signal group, a is in operation and the smoke detector to stop the guidance sound from the guide light. Therefore, the present invention can be applied to already installed smoke detectors only by changing the signal device.

[Brief description of the drawings]

FIG. 1 is a perspective view of a guide light.

FIG. 2 is a block diagram of an electrical configuration related to the guidance sound.

FIG. 3 is a block diagram of an evacuation guidance device.

FIG. 4 is a timing chart of a guidance sound.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guidance light 6 Audio unit 20 Smoke detector 21 Fire detector 22 Fire discriminator 23 Signal device 28 Start signal 29 Reset signal

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Kazuki Maruyama 2-5-5-1 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (56) References JP-A-6-290352 (JP, A) 51-140596 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G08B 17/00 G08B 7/00

Claims (3)

(57) [Claims] A fire detection unit for detecting a fire; a fire determination unit for determining the presence or absence of a fire based on a signal from the fire detection unit; And a signal device that outputs a start signal when the is input and outputs a reset signal every time a predetermined time elapses after outputting the start signal, and is disposed near the emergency exit and guided to the emergency exit by light. A plurality of guide lights, and a guide sound generating unit provided in the guide light and generating a guide sound when the start signal or the reset signal is input, wherein the start signal or the reset signal includes a plurality of The invitation
An evacuation guidance device, which is output to all of the light guides. 2. The apparatus according to claim 1, wherein the guidance sound generating unit generates a guidance sound of a predetermined pattern, and the signal device outputs a reset signal every cycle of the pattern. Evacuation guidance device. 3. A signal device for outputting a control signal in the event of a fire, a plurality of guide lights disposed near an emergency exit and guiding the emergency exit by light, provided on the guide light, and receiving the control signal. A guide sound generating unit that generates a guide sound when it is operated, and a smoke detector that operates when the guide light is activated and outputs a sound stop signal to the guide light when smoke is detected. stops the guidance sound of the lamp, the smoke detector is Ri operating state that is the guidance sound generator, the induced noise having a first silence section
At the same time, the signaling device is
Output a reset signal at intervals shorter than the time of silence
An evacuation guidance device , characterized in that: