JP2010146391A - Alarm - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To notify a resident of a possibility of a fire to check the fire if the resident is close to the origin of the fire when the possibility of the fire is determined. <P>SOLUTION: The alarm includes a detection part 11 monitoring a monitoring target and outputting a detection signal, a comparison part 12 comparing a detection signal level with a first threshold value and with a second threshold value higher than the first threshold value, and a control part 17 operating a lighting part 14 to give an alarm by lighting when the detection signal level exceeds the first threshold value and operating an alarm part 13 to give an alarm by an alert message when the detection signal level exceeds the second threshold value. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an alarm device that is installed on a wall surface or a ceiling surface and notifies an abnormality to be monitored.

Conventionally, fire alarms have been configured to output an alarm sound such as a buzzer when a fire factor such as smoke or heat is detected, but in a more improved example, light is further emitted toward the floor. There was a thing equipped with the illumination part to do. For example, the following Patent Document 1 discloses a fire alarm equipped with a light-emitting cover so that when a fire occurs at night or the like, the feet can be secured and the evacuation route can be quickly found. ing.
JP 2006-039818

  However, in the configuration of Patent Document 1, when there is a possibility of fire, that is, when the level of smoke, heat, etc. is lighter than that determined as fire, the alarm sound is not sounded and light is emitted. Since there was no resident, even if there was a resident in the room of the fire source, the resident could be unaware of the situation.

  Therefore, the present invention proposes an alarm device capable of notifying a resident at an earlier stage if there is a resident near the fire source when it is determined that there is a possibility of a fire.

  The present invention relates to an alarm device including an illuminating unit that illuminates a floor surface or a wall surface, and a notification unit that outputs a predetermined message, a detection unit that monitors a monitoring target and outputs a detection signal, A comparison unit that compares a level with a first threshold value and a second threshold value that is higher than the first threshold value, and when the level of the detection signal exceeds the first threshold value, the illumination unit is activated. And a control means for notifying by an illumination and, when the second threshold value is exceeded, operating the notifying unit to notify by an alarm message.

  In addition, in the above, when the control unit operates and notifies the illumination unit, it is preferable that the control unit is lit with a predetermined illumination pattern.

  In the present invention, when the level of the detection signal exceeds the first threshold and it is determined that there is even a slight possibility of fire, a resident in the room can be promptly notified by lighting to prompt confirmation. . However, since the resident in the remote place is not called by the warning message, the resident is not bothered more than necessary.

  In addition, when the lighting unit is operated and notified, the notification by lighting is more conspicuous in the configuration in which the lighting is performed with a predetermined lighting pattern, so that the resident can be surely noticed.

  Embodiments of the present invention will be described below with reference to the drawings. The embodiment is a residential fire alarm device that monitors smoke as a monitoring target and outputs an alarm message when it is determined to be abnormal. However, the present invention is not limited to fire alarms, but can be applied to gas leak alarms.

  FIG. 1 is a functional block diagram showing a schematic configuration of the embodiment, and FIG. 2 is a perspective view showing an appearance of the embodiment.

  The alarm device 1 detects the smoke density as a monitoring target, and compares the level of the smoke density signal output from the detection section 11 with a first threshold value and a second threshold value higher than the first threshold value. A comparison unit 12, a notification unit 13 that outputs a warning message or the like, a lighting unit 14 that illuminates a floor surface or a wall surface, a timer unit 15, an operation unit 16, and a control unit 17.

  The above components are constituted by a circuit housed in the body cover 1a. The main body cover 1a exposes the insect-proof cover 11a that houses the detection unit 11, the operation buttons 16a and the drawstring 16c constituting the operation unit 16, the indicator lamp 13b, the lamp cover 14a of the illumination unit 14, and the like. A sound hole 13c for the speaker 13a to be formed and an insertion hole 16b for inserting a drawstring 16c interlocked with the operation button 16a are formed.

  The alarm device 1 shown in the perspective view is an example of an alarm device that can be attached to a wall surface or a ceiling, but other than this, an alarm device built-in type lighting device may be used.

  The detector 11 has a configuration in which a light emitter made of a light emitting diode or the like and a light receiver made of a photodiode or the like are appropriately arranged in a detection space surrounded by a labyrinth wall that allows light to flow while blocking light. The light irradiated from the light reflected by the smoke particles is received by a light receiver, photoelectrically converted, and output as a smoke density signal.

  The comparison unit 12 compares the level of the smoke density signal with the first threshold value and notifies the control unit 17 of the determination result, and compares the level of the smoke density signal with the second threshold value. And a second comparison unit 12b for notifying the control unit 17 of the determination result. The first threshold value and the second threshold value are held in the memory 18, and the control unit 17 can change and set the values if necessary. Note that the high second threshold is preferably larger than the first threshold.

  The control unit 17 is configured by a CPU or the like, and controls the notification unit 13 and the illumination unit 14 according to a control program. 14 is activated and notified by illumination, and then when the second threshold is further exceeded, the notification unit 13 is operated and notified by an alarm message.

  Thereby, when it is determined that there is a possibility of a fire, that is, when the level of the smoke density signal exceeds the first threshold value, a resident in the room can be promptly notified by lighting to prompt confirmation. . However, since the resident in the remote place is not called by the warning message, the resident is not bothered more than necessary. Of course, if a fire is determined after that, an alarm message is output, so that a resident in a remote location can be surely notified of the fire.

  The notification unit 13 includes a voice synthesis IC, an amplifier, a speaker 13a, a light emitting diode that constitutes the indicator lamp 13b, and the like (not shown). In the voice synthesis IC, for example, an alarm message such as “Hyun Hyun, it is a fire. It is a fire” is stored in advance.

  It is desirable for the illumination unit 14 to change the illumination pattern, for example, the luminance or the illumination range in accordance with the control. For that purpose, for example, a plurality of lamps made of high-intensity white light-emitting diodes may be combined so that a desired lamp can be lit. In this case, when operating and notifying the illumination unit 14, the control unit 17 selects a lamp with a predetermined illumination pattern and performs lighting control. In this way, since the notification by illumination is more conspicuous, the resident can be surely noticed.

  FIG. 3 is a schematic diagram illustrating a state of illumination according to the embodiment, and illustrates an illumination range corresponding to illuminance levels “1” to “3”. In this example, the illumination unit 14 is configured to illuminate a wider range in a circle according to the illumination level.

  As a basic operation, the alarm device 1 compares the level of the smoke density signal output from the detection unit 11 with the first threshold value and the second threshold value at a predetermined period, and the level of the smoke density signal is the first threshold value. When it is determined that there is a possibility of a fire, the illumination unit 14 is operated for a predetermined time and notified by illumination. Thereafter, when the level of the smoke density signal exceeds the second threshold value and it is determined that a fire has occurred, the notification unit 13 is activated and a notification is given by an alarm message. The notification by the warning message is continuously performed until the warning stop operation is performed by the operation unit 16.

  FIG. 4 is a flowchart showing the procedure of the basic operation. In this procedure, the first comparison unit 12 first reads the level of the smoke density signal and compares it with the first threshold value. As a result, if the smoke density signal level exceeds the first threshold value, the control unit 17 is notified, so the control unit 17 sets the timer unit 15 and sets the illumination level of the illumination unit 14 to “0”. Set (steps 101-104).

  Here, the illumination level is a value indicating the brightness of the illumination or the illumination range. The larger the illumination level, the higher the brightness or the wider the illumination range. The illumination level “0” is off.

  Next, it is determined whether or not the illumination level is “0”. If it is “0”, the setting is changed to “1”. Similarly, it is determined whether or not the illumination levels are “1” and “2”. If they are “1” and “2”, the setting is changed to “2” and “3”, respectively. Further, it is determined whether or not the illumination level is “3”, and if it is “3”, it is returned to “0” (steps 105 to 111).

  Further, the timer unit 15 is referred to determine whether or not the time is up. If the time is not up, the determination and change processing of the illumination level is repeated. In this way, lighting control is performed according to the illumination pattern until the time is up (steps 105 to 111).

  Thereafter, the second comparison unit 12b compares the level of the smoke density signal with the second threshold value. As a result, if the level of the smoke density signal exceeds the second threshold, the control unit 17 activates the notification unit 13 and starts outputting an alarm message from the speaker 13b. At the same time, the indicator lamp 13b is turned on. On the other hand, if the smoke density signal level does not exceed the second threshold, the process returns to the process of reading the smoke density signal level (steps 112 to 114).

  When the level of the smoke density signal exceeds the second threshold and the alarm unit 13 starts outputting an alarm message, the lighting unit 14 may be turned on as an emergency light at the maximum luminance or the maximum illumination range at the same time.

  As a modification, when the smoke density signal level exceeds the first threshold value and the illumination unit 14 is activated and notified by illumination, the density signal level exceeds the first threshold value for a predetermined time thereafter. However, it is good also as a structure which does not alert | report by the illumination part 14. FIG. In this way, when the state where the level of the smoke density signal exceeds the first threshold continues for a long time, the notification by the illumination unit 14 is intermittently performed, so that power consumption can be suppressed.

  Further, as a modified example, when it is determined that there is a possibility of a fire, it is notified by lighting, and when it is determined that there is a fire, then an operation mode according to the present invention is notified by an alarm message, and when it is determined that a fire has occurred, an alarm message is notified It may be possible to select and set in advance one of the conventional operation modes in which both the notification and the notification by illumination are simultaneously performed. This selection and setting can be performed by, for example, a mode switch provided on the operation unit 16.

It is the functional block diagram which showed schematic structure of the Example. It is the perspective view which showed the external appearance of the Example. It is the schematic diagram which showed the mode of the illumination by an Example. It is the flowchart which showed the procedure of the basic operation | movement of an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Alarm 11 Detection part 12 Comparison part 13 Notification part 14 Illumination part 17 Control part

Claims (2)

In an alarm device comprising an illumination unit that illuminates a floor surface or a wall surface, and a notification unit that outputs a predetermined message,
A detection unit that monitors a monitoring target and outputs a detection signal;
A comparison unit that compares the level of the detection signal with a first threshold value and a second threshold value that is higher than the first threshold value;
When the level of the detection signal exceeds the first threshold value, the illumination unit is activated and notified by illumination, and when the level exceeds the second threshold value, the notification unit is activated and an alarm message is issued. An alarm device comprising control means for informing. In claim 1,
The control unit is an alarm device that is turned on with a predetermined illumination pattern when the illumination unit is notified.

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