JP4820069B2 - Fire alarm - Google Patents

Description

  The present invention relates to a home fire alarm.

Household fire alarms need to warn the user of the occurrence of an abnormality appropriately so that the user can evacuate when an abnormality such as a fire occurs, and various technologies have been proposed. ing.
In this type of technology, in order to warn the user of abnormal content, a plurality of audio segments are stored in advance, and when an abnormality occurs, a plurality of audio segments are combined and output according to the output from various sensors. There is a fire alarm (see, for example, Patent Document 1). This is to save the voice memory capacity by segmenting and storing voices such as “It is a fire”, “Please check”, “Please evacuate”, etc. Depending on the degree, sound is output such as “It is a fire” or “Please evacuate”.

JP 2000-149169 A

  However, the fire alarm of Patent Literature 1 can notify the user of the details of the abnormality in more detail, but at the start of audio output, the user is not aware of the audio and cannot be heard properly. was there. The user has to pay considerable attention to confirm the content of the output voice, and there is a problem that there is a delay in judging and responding to the abnormal content. In addition, it is necessary to check the fire alarm regularly to check its operation. Furthermore, it is necessary for the user to periodically check the warning sound in order to reliably recognize the warning sound when actually required. However, conventional fire alarms did not have a function for easily checking and checking.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a home fire alarm capable of causing a user to recognize the occurrence of an abnormality such as a fire more appropriately and quickly. It is in.

In order to achieve this object, the characteristic configuration of the fire alarm according to the present invention includes an abnormality detection unit that detects the occurrence of an abnormality relating to a fire, and a notification unit that outputs a sound and notifies the occurrence of the abnormality. A fire alarm, wherein when the abnormality detection unit detects fire information, the notification unit generates a warning sound for alerting a user, an imitation sound and a sound reminiscent of an abnormality content, The sound is output in the order of sound, onomatopoeia, and sound .
In other words, by outputting at least three warning sounds including onomatopoeia and voice, it is possible to notify a wider range of users of abnormalities such as fires more reliably, and the user appropriately takes measures such as evacuation Can do. In particular, because it outputs onomatopoeia reminiscent of abnormal content, not only ordinary users but also children and elderly people who are thought to be unable to recognize abnormal content by voice warning alone will recognize abnormal content. It becomes easy. Furthermore, since the voice informing the abnormal content is output, the abnormal content can be appropriately recognized.

In addition, the notification part, the warning sound, evocative reminder sound the attention of the user, the sound effects, you output in the order of the voice. In this way , the sound that alerts the user's attention, attracts the user's attention to the alarm, and in the state that the user recognizes the occurrence of the abnormality, the sound that reminds the abnormal content and the sound that informs the abnormal content Are sequentially output, so that the user can more appropriately recognize the content of the abnormality, and can quickly respond to the occurrence of the abnormality.

Furthermore, another characteristic configuration is that the sound pressure is set higher in this order for the alert sound, the pseudo sound, and the sound .
Generally, the sound with higher sound pressure reaches farther away. Therefore, by first outputting a warning sound with a high sound pressure to call the user's attention, the subsequent pseudo sound and voice can be heard even if the sound pressure is lowered and output. Thus, if this configuration, after which it is possible to reliably perform notification of an alarm to the user, it is possible to lower the sound pressure of the rear half of the sound effect and the voice, the power saving device Can do.

  An embodiment of a fire alarm 1 according to the present invention will be described with reference to the drawings. Here, FIGS. 1A to 1D are a front view, a side view, a rear view, and a bottom view of the fire alarm 1.

  The fire alarm 1 includes a fire detection unit 2 as an abnormality detection unit that detects the occurrence of a fire, and an alarm speaker as an notification unit that outputs a sound to notify the occurrence of an abnormality such as a fire occurrence or a function abnormality of the fire alarm 1 3 is provided. A fire detection unit 2, an alarm speaker 3, an alarm lamp 4, and an alarm sound stop button 5 as an operation unit are provided on the front of the fire alarm 1, and a battery storage unit 7, fire alarm is provided on the back. A mounting portion 8 for fixing the device 1 to a wall material or the like, and a groove 9 for fixing a wiring (not shown) drawn from an external signal output portion (not shown) for the interlocking function are provided. The fire alarm 1 of the present embodiment is a photoelectric type two types of residential fire alarm.

  The fire detection unit 2 is formed of a circular member, and is provided to protrude from the front center of the fire alarm 1. The fire detection unit 2 includes a sensor capable of detecting fire information, such as a smoke sensor, a thermal sensor, a CO sensor, and a gas sensor. The alarm speaker 3 is configured to be able to output a warning sound of 75 to 85 dB / m (A), and is provided at the upper left of the front of the fire alarm 1. The alarm lamp 4 includes LEDs of two colors, red and green, and is provided at the lower right of the front of the fire alarm 1 next to the alarm sound stop button 5 and is turned off when the operation of the fire alarm 1 is started. .

  The alarm sound stop button 5 is provided at the lower front portion (lower front corner portion) of the fire alarm 1. This alarm sound stop button 5 has a function of stopping a warning sound generated from the alarm speaker 3 at the time of a fire, and a function of generating a warning sound similar to that at the time of a fire from the alarm speaker 3 at the time of inspection work. The alarm sound stop button 5 here is set to a size and position that is easy for the user to understand, and can facilitate the inspection work. Furthermore, even when the fire alarm 1 is installed at a high position where it is difficult to reach, it can be easily pushed with a bar member or the like. That is, for example, when a push operation is attempted using a bar member or the like, the fire alarm 1 is installed at a high position where it is easy to contact the bar-shaped member and difficult to reach if the operation unit is provided at the corner. Can be made easy. As a result, the inspection operation of the fire alarm 1 is facilitated, and the inspection operation can be easily performed, so that the chance of the user touching the warning sound increases. As a result, the user can easily recognize the warning sound of the fire alarm device 1 and can appropriately respond when the warning sound is output due to the occurrence of a fire. In addition, at the bottom of the alarm sound stop button 5, a pull string attaching portion 6 for attaching a pull string as an operation support member of the alarm sound stop button 5 is provided. About the fire alarm 1 installed in a high position, by attaching a drawstring to the drawstring attaching portion 6, even a short user can easily operate the alarm sound stop button 5. The battery storage unit 7 can store two CR lithium primary batteries in series so that the fire alarm 1 can be used for five years or more under the conditions of inspection once / year and alarm six times / year. is there. An external signal output unit (not shown) is configured as an open collector of a transistor.

Next, the operation of the fire alarm 1 will be described.
The fire alarm 1 according to the present embodiment includes a fire occurrence monitoring function for monitoring the occurrence of a fire and an inspection function for checking the function of the fire alarm 1.

  The fire occurrence monitoring function monitors outputs from various sensors of the fire detection unit 2, and determines the occurrence of a fire when the outputs from these sensors satisfy a predetermined fire determination condition. The fire determination condition here is, for example, a threshold value with respect to the output of the sensor, and when the output of any sensor exceeds the threshold value set for each sensor, the occurrence of a fire is determined. .

  For example, when the fire detection unit 2 detects a fire, the notification unit repeatedly outputs at least three warning sounds including a false sound and a sound from the alarm speaker 3 provided at the upper left of the front of the fire alarm 1. Further, the alarm lamp 4 is lit red.

  Here, as the warning sound of the present embodiment, a copyright-free sound is used, and a warning sound that alerts the user, an imitation sound reminiscent of the abnormal content, and a voice that notifies the abnormal content are output in this order. For example, when a fire is detected, a warning sound that alerts the user, a simulated sound reminiscent of a fire, and a sound notification that a fire has occurred are output as “Woo Woo”, “Can Can”, or “Fire is Fire”.

Furthermore, the warning sound of the present embodiment is set to a sound pressure of 75 to 85 dB / m (A), and the sound pressure is set higher in this order for the alert sound, the pseudo sound and the voice. For example, the sound pressure of the alert sound is set to 85 dB, the sound pressure of the pseudo sound is set to 80 dB, and the sound pressure of the voice is set to 75 dB. The user will be alerted to the warning sound by the alert sound that is output first, and can recall the fire by the imitation sound that is output after that. Easy to recognize fire. For this reason, the user can perform countermeasures such as evacuation and fire notification more appropriately and promptly.
In general, since the frequency range of sounds that are easy to hear is different between young people and elderly people, a warning sound that is easy to hear for young people and a warning sound that is easy to hear for elderly people are combined and output. Is also a preferred embodiment.

  When the alarm sound stop button 5 is operated and reset, the fire alarm 1 stops the output of the alarm sound from the alarm speaker 3 and turns off the alarm lamp 4. The fire alarm 1 starts normal operation when a certain time has elapsed after the operation of the alarm sound stop button 5, and returns the fire occurrence monitoring function and the inspection function.

  Furthermore, the fire occurrence monitoring function here has an interlocking function for interlocking the fire alarms 1 when a plurality of fire alarms 1 are installed in the house, and is installed in the house. The fire alarms 1 are connected to each other via wiring (not shown) from an external signal output unit (not shown) drawn to the back. Because this interlocking function is often delayed by elderly people in a fire, in order to quickly recognize not only the place where the fire occurred in the house but also the residents outside the place where the fire occurred, The fire alarm 1 installed in the system is also operated in conjunction.

  The interlocking function is set so that, for example, ON / OFF is switched by pressing and holding the alarm sound stop button 5 for 3 seconds or longer. This is to prevent the ON / OFF switching when unnecessary by the user's operation, and is assumed to be set by the installer of the fire alarm 1 or the like.

  When any of the fire alarms 1 installed in a house detects the occurrence of a fire while the interlock function is ON, the fire alarm 1 that has detected the occurrence of a fire outputs a fire occurrence to another fire alarm 1 . The fire alarm device 1 that has been notified of the occurrence of a fire outputs a warning sound similar to that of the fire alarm device 1 that has detected the occurrence of a fire from the alarm speaker 3. The alarm lamp 4 blinks red. Depending on whether the alarm lamp 4 is lit or flashing, the user can identify whether the fire alarm 1 detects the occurrence of a fire or the fire alarm 1 that operates in conjunction.

  The inspection function automatically diagnoses each function of the fire alarm 1 based on the operation of the alarm sound stop button 5 by the user when a fire occurrence or the like is not detected. Here, the battery voltage drop, sensor abnormality, circuit abnormality, and expiration date abnormality of the fire alarm 1 are detected.

  As the determination of the function abnormality of the fire alarm 1, a decrease in battery voltage is determined when the power supply voltage becomes a predetermined value or less. Further, when the output from each sensor is not within a predetermined range, a sensor abnormality is determined. When an abnormality occurs in the constant voltage circuit, the circuit abnormality is determined, and the expiration date abnormality is determined when the expiration date set for the fire alarm 1, for example, five years or more has elapsed.

  If no functional abnormality of the fire alarm 1 is detected, a warning sound is output from the alarm speaker 3 with a sound pressure lower than that at the time of an alarm such as a fire, for example, a sound pressure of 60 dB. Here, it outputs “Woo Wang Can Fire is Fire”.

  When an abnormality in the function of the fire alarm 1 is detected, the alarm speaker 3 outputs a sound notifying the abnormality content with half the sound pressure at the time of an alarm such as a fire. Specifically, when a drop in battery voltage is detected, the alarm speaker 3 outputs a sound “Battery has run out”. Further, the alarm lamp 4 is blinked in green. In this state, when the alarm sound stop button 5 is operated and the fire alarm 1 is reset, the output of the alarm sound by the alarm speaker 3 is stopped and the alarm lamp 4 is turned off. The fire alarm 1 starts normal operation when a certain time has elapsed after the operation of the alarm sound stop button 5, and returns the fire occurrence monitoring function and the inspection function.

  By providing an inspection function in addition to the fire occurrence monitoring function, the user can accurately recognize when the fire alarm 1 may not operate normally, and ensure the reliability of the fire alarm 1 Can do.

Schematic diagram of fire alarm according to the present invention

Explanation of symbols

1 Fire alarm 2 Fire detector 3 Alarm speaker 4 Alarm lamp 5 Alarm sound stop button

Claims (2)

A fire alarm for homes comprising an anomaly detection unit for detecting an occurrence of an anomaly related to a fire and an informing unit for outputting a sound to notify the occurrence of an anomaly,
When the abnormality detection unit detects fire information, the notification unit generates a warning sound that alerts the user and an onomatopoeia and voice reminiscent of the abnormal content, the alert sound, the onomatopoeia, and the audio Fire alarm that outputs in the order of . The fire alarm according to claim 1 , wherein sound pressure is set higher in this order for the alert sound, the pseudo sound, and the sound .

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