TW201942881A - Acoustic device, control method, and program - Google Patents

Abstract

The purpose of the present disclosure is to achieve a reduction in evacuation time. An acoustic device (1) is provided on a structural body. The acoustic device (1) is provided with a control unit (10), a first output unit (11), and a second output unit (12). Upon reception of information relating to a specific phenomenon, the control unit (10) determines whether the specific phenomenon has occurred or not. When the control unit (10) determines that the specific phenomenon has occurred, the first output unit (11) outputs sounds to inform the occurrence of the specific phenomenon. The second output unit (12) outputs light in accordance with the information. For a first timing (T1) at which the output of the sounds is started and a second timing (T2) at which the output of the light is started, a time difference (T0) is set.

Description

Audio device, control method and program

The present invention generally relates to an audio device, a control method, and a program. More specifically, the present invention relates to an audio device that reports that a specific event has occurred, and a method and program for controlling the audio device.

As a previous example, a live alarm device described in Document 1 (JP2010-49604A) is exemplified. The smoke detector is provided at the center of its protective cover with a smoke detection unit for opening the smoke flow inlet, and detects a fire when the smoke generated by the fire reaches a specific concentration. In addition, the alarm device has a sound hole on the lower left side of the smoke detection section of the protective cover, and a speaker is built in the back to output an alarm sound and a sound message. The alarm device is installed on a wall surface of a living room, a bedroom, or the like of a house. When a fire occurs, a fire is detected and an alarm is started.

However, when a specific event such as a fire occurs, an occupant (audio device) that can further shorten the time (evacuation time) from the time when an occupant understands the occurrence of the specific event to the time of evacuation is desired.

The present invention has been made in view of the above-mentioned reasons, and an object thereof is to provide an acoustic device, a control method, and a program capable of shortening an evacuation time.

One aspect of the present invention is an audio device installed in a structure. The audio device includes a control unit, a first output unit, and a second output unit. The control unit receives information related to a specific event and determines whether the specific event has occurred. The first output unit outputs a sound to notify the occurrence of the specific event when the control unit determines that the specific event has occurred. The second output unit outputs light based on the information. A time difference is set between the first time point when the output of the sound is started and the second time point when the output of the light is started.

A control method of one aspect of the present invention is a control method of an acoustic device provided on a structure. The control method includes a determination step, a first output step, and a second output step. In the above determining step, information related to a specific event is received and it is determined whether the specific event has occurred. In the first output step, when it is determined that the specific event has occurred, the first output unit is caused to output a sound so as to report the occurrence of the specific event. In the second output step, the second output unit is configured to output light based on the information. A time difference is set between the first time point when the output of the sound is started and the second time point when the output of the light is started.

One aspect of the present invention is a program for causing a computer system to execute the above control method.

(1) Outline The following embodiment is only one of various embodiments of the present invention. As long as the following embodiments can achieve the purpose of the present invention, various changes can be made according to design and the like. In addition, each of the drawings described in the following embodiments is a schematic diagram, and the ratio of the size and thickness of each constituent element in each of the drawings may not necessarily reflect the actual size ratio.

As shown in FIGS. 4A and 4B, the acoustic device 1 according to this embodiment is installed in a structure C1 (building material such as a ceiling or a wall). As shown in FIG. 2, the audio device 1 includes a control unit 10, a first output unit 11, and a second output unit 12. The control unit 10 receives information related to a specific event and determines whether a specific event has occurred.

Here, the "specific event" is assumed to be a fire as an example. Therefore, as an example, the acoustic device 1 is a fire alarm which outputs a sound such as an alarm sound when a fire occurs. However, as long as a specific event is a warning object of an alarm sound, it is not limited to a fire, but may also be a gas leak, a tsunami, an earthquake, and the intrusion of a suspicious person.

As shown in FIG. 2, the audio device 1 of this embodiment is further provided with a photoelectric sensor (detection section 2) for detecting smoke, but the detection section 2 may also be a constant temperature sensor for detecting heat. Device. The detection unit 2 may be separated from the audio device 1. The control unit 10 of the audio device 1 may also receive fire-related information by communicating with another audio device (fire alarm) having a detection unit.

The acoustic device 1 is installed on one surface (ceiling surface or wall surface) of a structure C1 such as a room, a bedroom, a staircase, or a corridor in a house. The dwelling can also be a detached house or a collective house (apartment). Furthermore, the acoustic device 1 may be installed in a non-residential structure C1 (such as a ceiling surface or a wall surface) instead of being installed in a house. Non-residential examples include office buildings, theaters, cinemas, auditoriums, game halls, complex facilities, restaurants, department stores, schools, hotels, hotels, hospitals, nursing homes, kindergartens, libraries, museums, art galleries, underground streets, stations, and Airport etc.

The first output unit 11 outputs an alarm sound to notify the occurrence of a fire when the control unit 10 determines that a fire as a specific event has occurred. The second output unit 12 outputs light based on information related to a fire. In addition, the light of the second output portion 12 may be referred to as "illumination light", but the light of the second output portion 12 is weaker than the illumination light output by a general lighting fixture, and is an illumination refuge path. Degree of light. In addition, as an example, "light" is illumination light that illuminates the surrounding area R1, but it is not limited to illumination light, and may be light of an operating lamp that lights or blinks at the time of an alarm (during operation). In addition, the "peripheral area R1" is an area (such as a floor) facing the ceiling when the audio device 1 is installed on a ceiling surface, and facing the wall surface when the audio device 1 is installed on a wall surface. Area (such as a wall).

Further, in this embodiment, a time difference T0 is set between the first time point T1 of the start sound output and the second time point T2 of the start light output (see FIG. 3).

According to this configuration, not only the output of sound but also the output of light is performed, and the time difference T0 is set at the time point when the output of sound and light is started. Therefore, the user (for example, the occupant 100) can more quickly grasp the current status of the occurrence of a specific event (fire), and start an evacuation operation. Therefore, the evacuation time related to a specific event can be shortened.

(2) Details
(2.1) Overall Configuration The overall configuration of the acoustic device 1 according to this embodiment will be described in detail below. Here, as an example, the audio device 1 is a battery-type fire alarm. However, the audio device 1 may be a fire alarm which is electrically connected to an external power source (for example, a commercial power system) and converts AC power (for example, an effective value of 100 V) supplied from the external power source into a DC current.

Hereinafter, as shown in FIGS. 4A and 4B, it is assumed that, as an example, the acoustic device 1 is installed on the ceiling surface (one surface of the structure C1) of the bedroom in the dwelling 100's house. Thereby, the up, down, left and right directions of the audio device 1 are specified using the up, down, left and right arrows shown in FIG. 1 for explanation. These arrows are recorded only for the purpose of explanation and are not accompanied by an entity. These directions are not intended to limit the use direction of the audio device 1.

As shown in FIG. 2, the audio device 1 includes a control unit 10, a first output unit (sound output unit) 11, a second output unit (light output unit) 12, and a detection unit 2, and further includes, for example, a battery 13 and an operation unit. The part 3, the case 4, and the light transmitting part 5 (refer FIG. 1). Here, as an example, the audio device 1 is a stand-alone fire alarm, and it is assumed that it does not have a communication function to communicate with other fire alarms.

(2.2) Housing The housing 4 houses a control unit 10, a first output unit 11, a second output unit 12, a battery 13, a detection unit 2, and a circuit for mounting the control unit 10 and circuit components constituting various circuits therein. Substrate (not shown) and the like. Although not shown in the drawings, the various circuits mentioned here are, for example, an audio circuit, a first lighting circuit, a second lighting circuit, and a power supply circuit described below.

The case 4 is made of synthetic resin, and is made of, for example, flame-resistant ABS (Acrylonitrile-Butadiene-Styrene) resin. The case 4 is formed in a flat cylindrical shape as a whole. The casing 4 has a mounting portion on an upper surface thereof, and is mounted on one surface (an installation surface) of the structure C1 by the mounting portion.

As shown in FIG. 1, the casing 4 has a hole 401 in a peripheral wall 400 thereof, and the hole 401 can introduce smoke to a curved diameter provided in the casing 4. The casing 4 has a partition wall which divides the internal space into two parts, the upper part and the lower part. The labyrinth and detection section 2 is located in the first space on the upper side, and the control section 10, the first output section 11, the second output section 12, and the circuit board are in the second space on the lower side.

In addition, the casing 4 has a slit-like window hole 403 formed in a long direction in the one direction (the left-right direction in FIG. 1) on the lower wall (protective cover) 402 thereof. The window hole 403 is disposed to face the first output portion 11 housed in the case 4. The window hole 403 leads the sound output from the first output section 11 to the outside of the casing 4.

In addition, the case 4 supports the light transmitting portion 5 on the lower wall 402 of the case 4 so that the lower surface of the light transmitting portion 5 is exposed to the outside of the case 4. The translucent portion 5 is a disc-shaped member having translucency. The light transmitting portion 5 is formed of a material such as an acrylic resin or glass. The light-transmitting portion 5 and the lighting portion 120 (described below) of the second output portion 12 housed in the casing 4 are arranged to face each other. The light transmitting portion 5 guides the light (illumination light) emitted from the lighting portion 120 to the outside of the housing 4. The light-transmitting portion 5 may have a lens portion having an outer surface formed in a convex shape so as to distribute light from the lighting portion 120 toward the surrounding area R1. A light guide member that efficiently guides light from the lighting unit 120 to the light transmitting unit 5 may be provided between the light transmitting unit 5 and the lighting unit 120.

Furthermore, the casing 4 supports the operation portion 3 on the lower wall 402 of the casing 4 so that the lower surface of the operation portion 3 is exposed to the outside of the casing 4. The operation unit 3 accepts operation input from the outside. The operation unit 3 can be pushed upward by a pressing operation using a finger of a user or the like. The operation section 3 is a disc-shaped member having a light-transmitting property. The operation unit 3 is arranged to face the operation lamp 121 of the second output unit 12 (described below) housed in the housing 4. The operation unit 3 is configured to press a button switch (not shown) housed in the housing 4 by a pressing operation.

In this embodiment, as an example, when the window hole 403 and the operation section 3 are viewed from below the lower surface of the lower wall 402, the window hole 403 and the operation section 3 sandwich the center of the lower surface of the lower wall 402 in the middle. , Arranged in a direction (left-right direction in FIG. 1). In addition, when the light transmitting portion 5 is viewed from below, the lower surface of the lower wall 402 is disposed more forward than the center of the lower surface of the lower wall 402.

(2.3) First output section The first output section 11 outputs sound (sound waves). When the first output unit 11 determines that a fire has occurred, the control unit 10 outputs an alarm sound to notify the occurrence of the fire. Hereinafter, the time point when the output of the alarm sound using the first output unit 11 is started is also referred to as "the first time point T1".

The first output section 11 is composed of a speaker that converts an electrical signal into sound. The speaker includes a vibrating plate, and generates a warning sound by mechanically vibrating the vibrating plate according to an electric signal. The speaker is formed in a circular shape in front view and has a circular plate shape. The first output unit 11 outputs an alarm sound (for example, a “beep” sound) under the control of the control unit 10. The first output unit 11 preferably outputs an alarm sound by changing the magnitude (sound pressure level) of the alarm sound. The alarm sound may also include, for example, a sweeping sound from low to high swept. The alarm sound may include, for example, an audio message such as "fire! Fire!". Here, it is assumed that the alert sound includes a sweeping sound and an audio message immediately following the sweeping sound.

On the circuit board, for example, circuit components constituting an acoustic circuit are mounted. The audio circuit includes a low-pass filter and an amplifier. When the audio circuit receives a PWM (Pulse Width Modulation) signal corresponding to the alarm sound generated by the control unit 10 when a fire occurs, the signal is converted into a sine wave sound signal by a low-pass filter and It is amplified by an amplifier and is output from the first output section 11 in the form of a warning sound.

The first output unit 11 also experimentally outputs an alarm sound during operation check. The first output unit 11 outputs audio messages such as "normal." Or "abnormal." According to the state of the audio device 1. The operation check can be performed by operating the operation unit 3 or pulling a pull rope (not shown) derived from the casing 4. The first output unit 11 may also output an audio message reporting the content when the replacement period of the battery 13 is approaching. The battery 13 is, for example, a lithium battery.

(2.4) Second output section The second output section 12 outputs light. As shown in FIG. 2, the second output section 12 in this embodiment corresponds to the lighting section 120 and the operating lamp 121. The second output section 12 outputs light based on information related to the fire under the control of the control section 10. Hereinafter, the point in time when the output of the light from the second output unit 12 is started will be referred to as a "second time point T2". A time difference T0 is set for the first time point T1 and the second time point T2. Here, as an example, the second time point T2 is later than the first time point T1.

In addition, only one of the lighting unit 120 and the operating lamp 121 may correspond to the second output unit 12. In other words, for example, when the lighting unit 120 starts the light output at the second time point T2, the operating lamp 121 may not start the light output at the second time point T2, but at the same first time point as the first output portion 11. T1 starts the output of light.

The lighting unit 120 includes one or a plurality of white LEDs (Light Emitting Diodes) 120A for lighting mounted on the circuit board as a light source (see FIG. 2). The lighting unit 120 is turned off at the normal time (during fire monitoring), and under the control of the control unit 10, it starts to light at the second time point T2 based on the information related to the fire.

The LED 120A is a packaged LED in which at least one LED chip is mounted at the center of a mounting surface of a flat-shaped mounting substrate. The LED chip is preferably a blue light emitting diode that emits blue light from a light emitting surface, for example. The mounting surface of the substrate including the LED chip is covered with a sealing resin mixed with a fluorescent substance that wavelength-converts blue light emitted from the LED chip. The LED 120A is configured to emit white illumination light from a light emitting surface by applying a DC voltage between its anode electrode and cathode electrode. The color of the illumination light is not limited to white, and may be other light colors. However, it is preferable that the light color of the operating lamp 15 is not covered.

On the circuit board, circuit components constituting a first lighting circuit for lighting the LED 120A of the lighting unit 120 are mounted. The first lighting circuit uses the DC power discharged from the battery 13 to light the LED 120A under the control of the control unit 10. When the audio device 1 is electrically connected to a commercial power system, the first lighting circuit converts the AC power supplied from the power system into a DC current to light the LED 120A.

The light (illumination light) emitted from the lighting section 120 is led out to the outside of the housing 4 through the light transmitting section 5, and the surrounding area R1 (here, the floor and bed of the bedroom, etc.) is illuminated. The illuminating unit 120 is also lit experimentally during the operation inspection. The operation check of the lighting unit 120 can be performed by operating the operation unit 3 or by pulling the pull rope in the same manner as the first output unit 11.

The operating lamp 121 has a red LED 120B mounted on the circuit board as a light source. The operating lamp 121 goes out at normal time (during fire monitoring), and starts to blink (or light up) at the second time point T2 based on the information related to the fire under the control of the control unit 10.

On the circuit board, circuit components constituting a second lighting circuit for blinking the LED 120B of the operation lamp 121 are mounted. The second lighting circuit uses the DC power discharged from the battery 13 under the control of the control unit 10 to blink the LED 120B. When the audio device 1 is electrically connected to a commercial power system, the second lighting circuit converts the AC power supplied from the power system into a DC current and causes the LED 120B to blink.

The light emitted from the self-actuating lamp 121 is led out to the outside of the housing 4 through the light-transmissive operation portion 3. The occupant 100 can recognize that the audio device 1 is in operation (detecting a fire) by viewing the operation unit 3 flashing red light. The operation lamp 121 also blinks during the operation check. The operation check of the operating lamp 121 can be performed by operating the operation unit 3 or pulling the pull rope in the same manner as the first output unit 11. The operating lamp 121 also blinks when the replacement period of the battery 13 is approaching or when a failure occurs. When the operation unit 3 is operated during the blinking process, the first output unit 11 outputs an audio message conveying the contents of the approaching replacement time or the contents of the failure.

(2.5) Detection section Detection section 2 detects a fire as a specific event. Here, as an example, the detection section 2 is a photoelectric sensor that detects smoke. As shown in FIG. 2, the detection unit 2 includes, for example, a light emitting unit 21 such as an LED, and a light receiving unit 22 such as a photodiode. The light-emitting portion 21 and the light-receiving portion 22 are arranged in a curved path of the housing 4 so that the light-receiving surface of the light-receiving portion 22 is deviated from the optical axis of the light irradiated by the light-emitting portion 21. When a fire occurs, smoke will be introduced into the labyrinth through the hole 401 in the peripheral wall 400 of the casing 4.

When there is no smoke in the curved path of the casing 4, most of the light emitted from the light emitting section 21 does not reach the light receiving surface of the light receiving section 22. On the other hand, when smoke exists in the tortuosity of the casing 4, the irradiated light of the light emitting portion 21 is scattered by the smoke, and a part of the scattered light reaches the light receiving surface of the light receiving portion 22. That is, the detection section 2 receives the light from the light emitting section 21 scattered by the smoke using the light receiving section 22.

The detection unit 2 is electrically connected to the control unit 10. The detection section 2 sends an electric signal (detection signal) indicating a voltage level corresponding to the amount of light received by the light receiving section 22 to the control section 10. The control unit 10 converts the light amount of the detection signal received from the detection unit 2 into a smoke density (event level) to determine a fire. In addition, the detection unit 2 may also send a detection signal indicating a voltage level corresponding to the smoke concentration to the control unit 10 after converting the light amount received by the light receiving unit 22 into the smoke density. Alternatively, the detection unit 2 may determine the occurrence of a fire (smoke) based on the amount of light received by the light receiving unit 22, and send a detection signal including information on the occurrence of the fire to the control unit 10.

(2.6) Control section The control section 10 is configured by, for example, a microcomputer including a CPU (Central Processing Unit) and a memory. In other words, the control section 10 is realized by a computer having a CPU and a memory, and the CPU functions as the control section 10 by executing programs stored in the memory by the CPU. Here, the program is recorded in the memory in advance, but it may also be provided through a telecommunication line such as the Internet or a non-transitory recording medium such as a memory card.

The control unit 10 controls the first output unit 11, the audio circuit, the second output unit 12 (the lighting unit 120, the operating lamp 121), the first lighting circuit, the second lighting circuit, the detection unit 2, and the like. In addition, the control unit 10 controls a power supply circuit that generates direct-current power from the battery 13 and generates operating power of various circuits.

The control unit 10 is configured to receive information related to a fire as a specific event and determine whether a fire has occurred. Specifically, the control unit 10 monitors the detection signal (information) received from the detection unit 2 and determines whether the event level included in the detection signal exceeds a threshold. As described above, as an example, the event level is the smoke density after conversion. However, the event level can also be the amount of light.

The control unit 10 has a threshold value stored in its own memory. The control unit 10 may, for example, periodically determine whether the smoke density exceeds a threshold value at a specific time interval, and determine that a fire has occurred as long as the smoke density exceeds the threshold value once. The specific time interval is, for example, a 5-second interval. Alternatively, the control unit 10 may count the number of times the smoke density continuously exceeds the threshold, and when the number of times reaches a predetermined number, it is determined that a fire has occurred. Of course, the control unit 10 may directly determine that a fire has occurred as long as it receives a detection signal including information that a fire has occurred from the detection unit 2.

When the control unit 10 determines that a fire has occurred based on the smoke concentration, the control unit 10 starts the output of the alarm sound from the first output unit 11 at the first time point T1 immediately after the determination. Specifically, the control unit 10 generates a PWM signal corresponding to a sweeping sound whose frequency linearly changes with time, and outputs the PWM signal to an acoustic circuit. The PWM signal is converted into an audio signal by an acoustic circuit, and a sweeping sound (alarm sound) is output from the first output section 11. In addition, the control unit 10 generates a PWM signal corresponding to the audio message based on the message data stored in its own memory, and outputs it to the acoustic circuit. The PWM signal is converted into an audio signal by an acoustic circuit, and an audio message (alarm sound) is output from the first output unit 11.

In addition, the control unit 10 starts the light output from the second output unit 12 (the lighting unit 120 and the operating lamp 121) at the second time point T2 at which the time difference T0 exists from the first time point T1. Specifically, the control unit 10 sends a control signal for lighting the lighting unit 120 and a control signal for blinking the operating lamp 121 to the first lighting circuit and the second lighting circuit, respectively. Here, the time difference T0 is set to a certain time. The fixed time is, for example, 4 seconds. That is, the control unit 10 starts counting from the first time point T1 using its own timer, and transmits a control signal at a time point (second time point T2) when a certain time has elapsed. When the first lighting circuit receives a control signal from the control unit 10, the first lighting circuit lights the lighting unit 120 at a constant brightness. When the second lighting circuit receives a control signal from the control unit 10, it causes the operating lamp 121 to blink.

The control unit 10 also determines the smoke density during the alarm (while the alarm sounds). The control unit 10 stops the generation of the PWM signal and stops the output of the alarm sound by the first output unit 11 when the smoke concentration falls below the reference value during the alarm, and sends the stop signals to the first lighting circuit and The second lighting circuit also stops the light output from the lighting unit 120 and the operating lamp 121. That is, the control unit 10 automatically stops the output of the alarm sound and light when it is determined that the fire (smoke) is eliminated.

In addition, the control unit 10 stops the output of the alarm sound when the button switch in the housing 4 is turned on by the pressing operation on the operation unit 3 during the alarm. If the occupant 100 determines that the alarm of the audio device 1 is a false alarm, the alarm of the alarm sound can be stopped by pressing the operation section 3. The warning sound can also be stopped by pulling the rope.

On the other hand, the control unit 10 performs a specific operation test for operation inspection when the button switch in the housing 4 is turned on by a pressing operation on the operation unit 3 during a non-alarm. The operation test includes a sound output test of the first output unit 11 and a light output test of the second output unit 12 (the lighting unit 120 and the operating lamp 121). The action test can also be achieved by pulling the rope.

(2.7) Operation description Hereinafter, referring to the timing chart of FIG. 3 and the state of the bedroom in FIGS. 4A and 4B, the operation of the audio device 1 when a fire occurs will be described. Furthermore, in FIGS. 4A and 4B, it is assumed that the occupant 100 is sleeping in a bed in the bedroom at a midnight time period.

The control unit 10 of the audio device 1 repeatedly determines whether or not the smoke density exceeds a threshold value at intervals of 5 seconds (step S1 in FIG. 3: monitoring). When the control unit 10 determines that a fire has occurred (step S2 in FIG. 3: fire determination), the control unit 10 outputs a PWM signal immediately after the determination (first time point T1). In addition, the control unit 10 starts timing using a timer (step S3 in FIG. 3: timing). The first output unit 11 receives a sound signal converted from the PWM signal in the acoustic circuit, and outputs an alarm sound (step S4 in FIG. 3: start of sound). As a result, as shown in FIG. 4A, although the bedroom is in a state of being near dark, the alarm sounds in the bedroom.

Then, the control unit 10 outputs a control signal to the first lighting circuit and the second lighting circuit after a certain period of time has elapsed (second time point T2). Therefore, the lighting unit 120 of the second output unit 12 is turned on, and at the same time, the operation lamp 121 of the second output unit 12 starts to blink (step S5 in FIG. 3: light start). A time difference T0 (for example, 4 seconds) is set for the first time point T1 and the second time point T2. As a result, as shown in FIG. 4B, the time interval T0 from the start of the warning of the alarm sound, in the bedroom in a state close to darkness, the surrounding area R1 is illuminated by the illumination of the lighting unit 120. After that, the control unit 10 stops the output of the first output unit 11 (step S7 of FIG. 3: the sound is stopped) when it is determined that the smoke concentration is equal to or lower than the reference value (step S6 of FIG. 3: smoke disappears), and further causes the second The output of the output section 12 is stopped (step S8 in FIG. 3: light stop).

Here, for example, when a fire breaks out in the house in the middle of the night, the resident 100 sleeping in the bedroom of the house may get up from the bed in a state close to darkness after hearing the alarm sound. It is difficult to grasp the path and direction of the bed to the door connected to the corridor instantly. Moreover, the occupant 100 may, for example, want to walk to the wall switch by hand in the dark, and turn on the lighting of the bedroom until the wall switch is turned on, which may delay evacuation. In addition, if the resident 100 is, for example, a hearing impaired person, the occurrence of a fire may not be detected by only an alarm sound (sound). In contrast, the audio device 1 not only outputs an alarm sound, but also the illumination light of the lighting unit 120. Therefore, the occupant 100 is likely to grasp the path (evacuation path) from the bed to the door connected to the corridor in an instant, thereby saving the desire. Time to light up the bedroom. In addition, even if the resident 100 is a hearing impaired person, the occurrence of a fire is likely to be detected by the illumination light of the lighting unit 120 and the red flashing of the operating lamp 121.

In particular, fire and the like are not an event that frequently occurs in the ordinary living environment for the occupant 100. Even if the warning of the audio device 1 is known, it is difficult for the occupant 100 to instantly accept that a fire has occurred in their home. Moreover, for example, when the resident 100 at bedtime just wakes up and is confused by the warning alert, he will not immediately think about what the light output of the audio device 1 means or the sound output of the audio device 1 What it means. In this case, the time difference T0 is set for the first time point T1 and the second time point T2. Therefore, for the occupant 100, it is easy to distinguish between thinking time for sound output and thinking time for light output. Therefore, the occupant 100 can grasp the current situation more quickly and start the evacuation operation. Therefore, the evacuation time related to a fire (specific event) can be shortened.

In addition, when the second time point T2 precedes the first time point T1, the occupant 100 at bedtime may wake up due to the glare of light (glare) and feel unhappy, thereby affecting the evacuation action. In view of this situation, in the present embodiment, the second time point T2 is later than the first time point T1, so that the occupant 100 at bedtime can wake up by sound, and the influence caused by glare can be suppressed.

(3) Modifications Several modifications are listed below. Hereinafter, the above-mentioned embodiment is referred to as a "basic example". Each of the modification examples described below can be applied in appropriate combination with the above-mentioned basic examples and / or other modification examples.

(3.1) Modification 1
The acoustic device 1 of the basic example is a separate type fire alarm. That is, the acoustic device 1 of the basic example does not have a communication function for communicating with other fire alarms. However, the audio device 1 may be an interlocking type fire alarm having a communication function for communicating with other fire alarms. The acoustic device 1 may be configured to communicate with equipment other than a fire alarm.

FIG. 5 shows an acoustic device 1A according to a first modification. The audio device 1A includes, for example, a communication unit 14 capable of communicating with an external device 8 in addition to the functions of the audio device 1 of the basic example. Examples of the external device 8 include another acoustic device (fire alarm) X1, a mobile terminal X2 (for example, a smart phone) carried by the resident 100, and a security monitoring device X3 installed in the house. The communication unit 14 has a communication interface for wirelessly communicating with the audio device X1, the mobile terminal X2, and the security monitoring device X3. Furthermore, the communication with the audio device X1 can also be performed by wire rather than by wireless.

The audio device 1A is one of a plurality of audio devices installed in each room, corridor, or gate of the house. Here, it is assumed that the audio device is a master device, but it may also be a slave device. It is assumed that the acoustic device X1 is one of a plurality of acoustic devices and is a slave unit. In other words, the audio device 1A and the audio device X1 may have substantially the same configuration as each other, except that the audio device 1A and the audio device X1 are different from each other. The memory of the control unit 10 of the audio device 1A as the master device previously stores identification information of all other audio devices as the slave devices.

When it is assumed that a fire has occurred in the room where the audio device 1A is installed, the audio device 1A immediately starts the output of the alarm sound at the first time point T1, vacates the time difference T0 and starts the lighting of the illumination light and the operation of the light at the second time point T2 flicker.

Further, the audio device 1A transmits an interlock signal including first information indicating that a fire has occurred to the audio device X1 at a first time point T1. Further, the audio device 1A transmits an auxiliary signal including second information indicating that the light has been output to the audio device X1 at a second time point T2. Similarly, the audio device 1A also transmits interlocking signals and auxiliary signals to other audio devices.

When the audio device X1 and other audio devices that have received the interlocking signal determine that a fire has occurred based on the first information contained in the interlocking signal, if the alarm has not yet been started, the output of the alarm sound is started.

The audio device X1 and other audio devices that have received the auxiliary signal perform light output from the second output unit 12 (lighting unit 120 and operating lamp 121) based on the second information in the auxiliary signal.

In addition to transmitting the first information and the second information to the audio device, the communication unit 14 of the audio device 1A also transmits the first information and the second information to the mobile terminal X2 and the security monitoring device. In addition, when the operation unit 3 or the pull rope of any of the audio devices 1A, X1, and other audio devices is operated during the alarm, the alarm sounds of all the audio devices in the house are stopped.

As described above, the audio device 1A includes the communication unit 14 capable of communicating with the external device 8, and thereby shares the first information and the second information with the external device 8.

(3.2) Modification 2
In the basic example, the second time point T2 of the start of the light output is later than the first time point T1 of the start of the alarm sound output. However, as long as the time difference T0 is set between the first time point T1 and the second time point T2, the second time point T2 may also precede the first time point T1.

The control unit 10 of the audio device 1 of the present modification (Modification 2) is configured for smoke concentration (event level) separately from a threshold value (first threshold value) for determining that a fire has occurred, and also performs comparison using a second threshold value. . However, the second threshold is set lower than the first threshold. If it is assumed that the first threshold is equivalent to the smoke density of level 10, the second threshold is set to the smoke density of level 5 immediately before. The first threshold value of this modified example is the same as the threshold value used to determine that a fire has occurred in the basic example, for example.

Therefore, in this modification, it is the same as the basic example in that it is determined that a fire has occurred when the smoke concentration exceeds the first threshold, and the output of the alarm sound is started at the first time point T1 immediately after it is determined that the fire has occurred. However, the control unit 10 of this modification is different from the basic example. When it is determined that the smoke concentration exceeds a second threshold value lower than the first threshold value, the light output of the second output unit 12 is started at the second time point T2 immediately after the determination. That is, in this modification, as the main function of the audio device 1 is to report a warning sound of the occurrence of a fire, the lighting of the lighting unit 120 and the blinking of the operating lamp 121 are started.

Hereinafter, the operation of the acoustic device 1 according to the present modification example when a fire occurs will be described with reference to the timing chart of FIG. 6.

The control unit 10 repeatedly determines, for example, at a 5-second interval whether the smoke density exceeds the second threshold value (step S11 in FIG. 6: monitoring). When the control unit 10 determines that the smoke concentration exceeds the second threshold value during the monitoring (step S12 in FIG. 6: advance notice determination), the control unit 10 immediately outputs the control signal to the first lighting circuit and the second lighting circuit (second Time point T2). Therefore, the lighting unit 120 of the second output unit 12 is turned on, and at the same time, the operating lamp 121 of the second output unit 12 starts to blink (step S13 in FIG. 6: light start).

After that, when it is determined that the smoke concentration exceeds the first threshold value (step S14 in FIG. 6: fire determination), the control unit 10 outputs a PWM signal immediately after the determination (first time point T1). The first output unit 11 receives a sound signal converted from the PWM signal in the acoustic circuit, and outputs an alarm sound (step S15 in FIG. 6: start of sound). In addition, since the operation | movement in the case where a smoke density becomes below a reference value is the same as a basic example, it abbreviate | omits here.

In this way, since the second time point T2 precedes the first time point T1, as a warning of the alarm sound, the occupant 100 can know the occurrence of the fire by light in advance. In particular, it is very likely that the occupant 100 in bed is frightened by a loud alarm sounding suddenly. Also, even if you hear the alarm suddenly, it may be difficult to instantly accept that a fire has actually occurred around you. In this regard, the occupant 100 can recognize the occurrence of a fire by identifying it in stages in the order of light (notice) and alarm sound, and quickly turn to evacuation operations. In addition, the resident 100 sleeping may be awoken by the illumination light of the lighting unit 120, and it is likely that the path from the bed to the gate will already be able to be confirmed when the next alarm sounds. In addition, by two types of threshold value determination, it is possible to perform light output more appropriately before the output of the alarm sound.

Furthermore, the second threshold value is preferably a value close to the first threshold value so that the smoke concentration exceeds the first threshold value within a few seconds to several tens of seconds after the smoke concentration exceeds the second threshold value. In other words, assuming that the second threshold value is a low-level smoke density that is greatly different from the first threshold value, even if the light of the second output portion 12 is output at the second time point T2, the smoke density is likely not to exceed the first threshold value. And directly maintain the state that no alarm sound is output. That is, it is preferable to set the second threshold so that the light becomes a notice for the alarm sound.

(3.3) Variation 3
The acoustic device 1 of the second modification has a configuration in which the second time point T2 precedes the first time point T1 by using a second threshold value set lower than the threshold value (first threshold value). However, the configuration in which the second time point T2 precedes the first time point T1 is not limited to the use of the second threshold.

The control unit 10 of the audio device 1 of this modification (Modification 3) is configured to perform a comparison between the smoke density (event level) and a threshold value at specific time intervals, and count the number of times that the smoke density continuously exceeds the threshold value. The specific time interval is, for example, a 5-second interval. The threshold value of this modification example is the same as the threshold value used to determine that a fire has occurred in the basic example.

When the control unit 10 reaches the first predetermined number of times, the control unit 10 determines that a fire has occurred. The control unit 10 causes the second output unit 12 to output light when the number of times reaches a second predetermined number of times less than the first predetermined number of times. The first predetermined number of times is, for example, three times, and the second predetermined number of times is, for example, two times.

That is, in this modified example, as in the second modified example, as the main function of the audio device 1 is to report the alarm sound of the occurrence of a fire, the lighting of the lighting unit 120 and the blinking of the operating lamp 121 are started. .

In this way, the second time point T2 precedes the first time point T1. Therefore, as a warning of the alarm sound, the occupant 100 can know the occurrence of the fire through the light in advance. In addition, by determining the number of times, the light output can be executed more appropriately before the output of the alarm sound.

(3.4) Modification 4
However, the acoustic device 1 may have a structure as shown in FIGS. 7A and 7B (Modification 4). The acoustic device 1 of this modification has a ring-shaped slit 9 recessed upward on one surface 40 (lower surface in FIG. 7A) of the casing 4. When the casing 4 is viewed from below, Formed around the outer periphery of the casing 4. The center of the annular slit 9 is substantially the same as the center of the outer periphery of the casing 4. The slit 9 has, on its inner surface (for example, the inner bottom surface), an acoustic hole H1 that leads the alarm sound to the outside of the case 4 and a window hole H2 that leads the illumination light to the outside of the case 4. The first output section 11 (speaker) is housed in the case 4 so as to face the acoustic hole H1. The lighting unit 120 of the second output unit 12 is housed in the casing 4 so as to face the window hole H2.

According to the present modification example, the acoustic holes H1 and the window holes H2 are provided on the inner surface of the slit 9, so that these holes have an inconspicuous structure. Therefore, it is possible to suppress the aesthetic appearance from being damaged and shorten the evacuation time.

(3.5) Other modified examples The same functions as the audio device 1 (mainly the control section 10) of the basic example can also be embodied by a control method, a computer program, or a non-transitory recording medium on which the program is recorded. Here, the main body of the audio device 1 or the control method includes a computer system. The computer system is mainly composed of a processor and a memory as hardware. The processor executes the program recorded in the memory of the computer system to realize the function as the execution main body of the audio device 1 or the control method. The program can be recorded in the memory of the computer system in advance, can be provided through telecommunication lines, and can also be provided in non-transitory recording media such as memory cards, optical disks, hard disk drives that can be read by the computer system. The processor of the computer system may also include one or more electronic circuits including a semiconductor integrated circuit (IC) or a large-scale integrated circuit (LSI). The plurality of electronic circuits may be integrated on one chip, or may be dispersedly disposed on the plurality of chips. The plurality of wafers may be collected in one device, or may be distributed in a plurality of devices.

In particular, in the basic example, the control unit 10 not only determines a fire, but also generates a PWM signal output to the audio circuit and a control signal output to the first lighting circuit. These functions may also be used, for example. Distributed execution using two or more processors. The first lighting circuit and the second lighting circuit may be configured as one lighting circuit, for example.

The acoustic device 1 of the basic example is realized by one device, but is not limited to this configuration. For example, the control unit 10, the first output unit 11, the second output unit 12, the detection unit 2, the operation unit 3, the first lighting circuit, the second lighting circuit, the audio circuit, and the power supply circuit of the audio device 1 At least one of the functions may be distributed to two or more devices. In addition, at least a part of the functions of the audio device 1 may be realized by, for example, a cloud (cloud computing).

(4) Advantages As explained above, the first aspect of the acoustic device (1, 1A) is provided on the structure (C1). The audio device (1, 1A) includes a control unit (10), a first output unit (11), and a second output unit (12). The control unit (10) receives information related to a specific event and determines whether a specific event has occurred. When the first output unit (11) determines that a specific event has occurred, the first output unit (11) outputs a sound to notify the occurrence of the specific event. The second output unit (12) outputs light based on the information. The time difference (T0) is set between the first time point (T1) of the start sound output and the second time point (T2) of the start light output. According to the first aspect, not only the sound output but also the light output is performed, and the time difference (T0) is set at the time point when the sound and light output are started. As a result, users (such as occupants) can more quickly grasp the current situation where a specific event has occurred, and can then turn to evacuation operations. Therefore, the evacuation time related to a specific event can be shortened.

The acoustic device (1, 1A) of the second aspect is in the first aspect, and preferably the second time point (T2) is later than the first time point (T1). According to the second aspect, for example, when the second time point (T2) precedes the first time point (T1), the user at bedtime may wake up due to the glare of light (glare) and feel unpleasant and affect it. To evacuation operations. In response to this situation, the second time point (T2) is later than the first time point (T1), whereby the user at bedtime will wake up by sound, and the influence caused by glare can be suppressed.

The acoustic device (1, 1A) of the third aspect is in the second aspect, and the time difference (T0) is preferably set to a certain time. According to the third aspect, the time difference (T0) can be set only by the timing of time.

The acoustic device (1, 1A) of the fourth aspect is in the first aspect, and preferably the second time point (T2) precedes the first time point (T1). According to the fourth aspect, as a notice of sound (alarm sound) as the main function of the audio device (1, 1A), the user can know the occurrence of a specific event by light in advance.

The fifth aspect of the audio device (1, 1A) is in the fourth aspect, and it is preferable that the control unit (10) determines that a specific event has occurred when the event level included in the above information exceeds the first threshold. The second output unit (12) preferably outputs light when the event level exceeds a second threshold lower than the first threshold. According to the fifth aspect, it is possible to perform light output before sound output more appropriately by determining two kinds of threshold values.

The sixth aspect of the audio device (1, 1A) is in the fourth aspect, preferably the control unit (10) performs the comparison of the event level and the threshold contained in the above information at specific time intervals, and The number of times the level continuously exceeds the threshold is counted. The control unit (10) preferably determines that a specific event has occurred when the number of times reaches the first predetermined number of times. The second output section (12) preferably outputs light when the number of times reaches a second predetermined number of times less than the first predetermined number of times. According to the sixth aspect, by determining the number of times, the light output can be performed more appropriately than the sound output.

The acoustic device (1, 1A) of the seventh aspect is in any of the first to sixth aspects, preferably the above-mentioned illumination light, and the second output section (12) illuminates the surrounding area ( R1). According to the seventh aspect, light not only notifies the occurrence of a specific event, but also illuminates the evacuation path. In particular, for example, when a specific event occurs while the user is sleeping in the bedroom, the user wants to light up the bedroom lighting, which may cause delay in evacuation. By outputting illumination light, the possibility that time is spent on such actions can be suppressed, and the evacuation time can be further shortened.

The audio device (1A) of the eighth aspect is any one of the first to seventh aspects, and preferably further includes a communication unit (14) capable of communicating with an external device (8). The communication unit (14) preferably sends the first information and the second information to an external device (8). The first information indicates that the control unit (10) determines that a specific event has occurred, and the second information indicates the second output. The section (12) outputs light. According to the eighth aspect, it is possible to share information with an external device (8) (such as a mobile terminal carried by a user or another audio device).

The acoustic device (1, 1A) of the ninth aspect is in any of the first to eighth aspects, and it is preferable that the so-called specific event means a fire. The audio device (1, 1A) is preferably further equipped with a detection unit (2) for detecting a fire. The control unit (10) preferably receives the detection result from the detection unit (2) as the above information and determines whether a fire has occurred. According to the ninth aspect, it is possible to provide an audio device (1, 1A) with a detection unit (2) capable of shortening an evacuation time for a fire.

The control method of the tenth aspect is a control method of the acoustic device (1, 1A) provided in the structure (C1). The control method includes a determination step, a first output step, and a second output step. In the determining step, information related to a specific event is received and it is determined whether a specific event has occurred. In the first output step, when it is determined that a specific event has occurred, the first output unit (11) is caused to output a sound so as to report the occurrence of the specific event. In the second output step, the second output section (12) is caused to output light based on the above information. The time difference (T0) is set between the first time point (T1) of the start sound output and the second time point (T2) of the start light output. According to the tenth aspect, it is possible to provide a control method capable of reducing the evacuation time related to a specific event.

The program of the eleventh aspect is used to cause the computer system to execute the control method of the tenth aspect. According to the eleventh aspect, a function capable of reducing the evacuation time related to a specific event can be provided. Furthermore, the above program can also be stored for a non-transitory computer-readable medium, and when the computer system is executed, the computer system can execute the tenth aspect of the control method.

The configurations of the second to ninth aspects are not necessary for the audio device (1, 1A), and can be appropriately omitted.

1‧‧‧Sound device

1A‧‧‧Audio device

2‧‧‧ Detection Department

3‧‧‧Operation Department

4‧‧‧shell

5‧‧‧Transmitting Department

8‧‧‧ external equipment

9‧‧‧ slit

10‧‧‧Control Department

11‧‧‧The first output section

12‧‧‧ 2nd output section

13‧‧‧ Battery

14‧‧‧ Ministry of Communications

21‧‧‧Lighting Department

22‧‧‧Light receiving section

One side of 40‧‧‧shell

100‧‧‧ Residents

120‧‧‧Lighting Department

120A‧‧‧LED

120B‧‧‧LED

121‧‧‧action light

400‧‧‧Zhoubi

401‧‧‧hole

402‧‧‧Lower wall (protective cover)

403‧‧‧window

C1‧‧‧ Structure

H1‧‧‧Sound hole

H2‧‧‧window

Area around R1‧‧‧

S1‧‧‧step

S2‧‧‧step

S3‧‧‧step

S4‧‧‧step

S5‧‧‧step

S6‧‧‧step

S7‧‧‧step

S8‧‧‧step

S11‧‧‧step

S12‧‧‧step

S13‧‧‧step

S14‧‧‧step

S15‧‧‧step

T0‧‧‧Time difference

T1‧‧‧1st point

T2‧‧‧ at 2 o'clock

X1‧‧‧Sound device

X2‧‧‧Mobile Terminal

X3‧‧‧security surveillance equipment

FIG. 1 is an external view of an acoustic device according to an embodiment.

FIG. 2 is a block diagram of an audio device according to an embodiment.

Fig. 3 is a timing chart illustrating the operation of the acoustic device according to an embodiment.

4A and 4B are diagrams showing a state of a bedroom in which an acoustic device according to an embodiment is provided.

FIG. 5 is a schematic configuration diagram of a modification example 1 of an acoustic device according to an embodiment and external equipment.

Fig. 6 is a timing chart illustrating the operation of the second modification of the acoustic device according to the embodiment.

7A and 7B are external views of a modified example 4 of the acoustic device according to an embodiment.

Claims (11)

An acoustic device, which is arranged on a structure, includes: A control unit that receives information related to a specific event and determines whether the specific event has occurred; A first output unit that outputs a sound to notify the occurrence of the specific event when the control unit determines that the specific event has occurred; and A second output unit that outputs light based on the information; and A time difference is set between the first time point when the output of the sound is started and the second time point when the output of the light is started. The sound device of claim 1, wherein The second time point is later than the first time point. The sound device of claim 2, wherein The time difference is set to a certain time. The sound device of claim 1, wherein The second time point precedes the first time point. The sound device of claim 4, wherein When the event level included in the information exceeds the first threshold, the control unit determines that the specific event has occurred, The second output unit outputs the light when the event level exceeds a second threshold lower than the first threshold. The sound device of claim 4, wherein The control section performs a comparison of the event level contained in the information with a threshold value at a specific time interval, and counts the number of times the event level continuously exceeds the threshold value, When the control unit reaches the first predetermined number of times, the control unit determines that the specific event has occurred, The second output unit outputs the light when the number of times reaches a second predetermined number of times less than the first predetermined number of times. The sound device of any one of claims 1 to 6, wherein The above-mentioned illumination light, The second output section illuminates a surrounding area. If the audio device of any one of claims 1 to 6, Furthermore, it has a communication unit that can communicate with external equipment, The communication unit sends the first information and the second information to the external device. The first information indicates that the specific event has been determined by the control unit, and the second information indicates that the second output unit outputs the light. The sound device of any one of claims 1 to 6, wherein The above-mentioned specific events refer to fires, The audio device is further provided with a detection section for detecting the fire, The control unit receives the detection result from the detection unit as the information and determines whether the fire has occurred. A control method is a control method of an acoustic device provided on a structure, and includes: The determination step is to receive information related to a specific event and determine whether the specific event has occurred; The first output step is to cause the first output unit to output a sound to notify the occurrence of the specific event when it is determined that the specific event has occurred; and A second output step, which causes the second output section to output light based on the above information; and A time difference is set between the first time point when the output of the sound is started and the second time point when the output of the light is started. A program for causing a computer system to execute the control method as claimed in item 10.