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Alarm device

A siren and alarm technology, applied in the field of siren, can solve problems such as increased power consumption

Inactive Publication Date: 2011-04-13
HOCHIKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the power consumption increases accordingly, so the receiving operation is performed intermittently every predetermined receiving cycle.

Method used

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no. 2 Embodiment approach

[0147] Figure 8A and Figure 8B It is explanatory drawing which shows the appearance of the wireless alarm device of this embodiment, Figure 8A is the front view, Figure 8B It is a side view.

[0148] exist Figure 8A and Figure 8B In this embodiment, the alarm 110 includes a cover 112 and a body 114 . In the center of the cover 112, a smoke detection unit 116 is arranged around which is formed an opening as a smoke inlet, and detects a fire when the smoke generated by the fire reaches a predetermined concentration.

[0149] like Figure 8A As shown, a sound hole 118 is provided on the lower left side of the smoke detection unit 116 of the cover 112 . A speaker is built in behind the sound hole 118 , and an alarm sound and a voice message are output through the sound hole 118 . On the lower side of the smoke detection unit 116, an alarm stop switch 120 is provided. The alarm stop switch 120 also functions as a check switch.

[0150] Inside the alarm stop switch 1...

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PUM

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Abstract

An alarm device is provided with: a battery power supply; a sensor unit for outputting an abnormality detection signal when detecting an abnormality; an annunciation unit for outputting an alarm on the basis of the abnormality detection signal; a reception circuit for intermittently receiving an event signal from another alarm device in a predetermined reception cycle; a transmission circuit for transmitting an event signal to the other alarm device for a transmission time period equal to or longer than the predetermined reception cycle; an abnormality monitor for causing the annunciation unit to output the abnormality alarm on the basis of the abnormality detection signal and also causing the transmission circuit to transmit an event signal concerned with the abnormality in the alarm device to the other alarm device when the sensor unit detects the abnormality, while causing the annunciation unit to output the abnormality alarm when the reception circuit receives, from the other alarm device, an event signal concerned with the abnormality in the other alarm device; and a low battery monitor for causing the annunciation unit to output a low battery alarm of the alarm device when detecting voltage drop in the battery power supply and also stopping the transmission / reception of the event signals in the reception circuit and the transmission circuit.

Description

technical field [0001] The invention relates to an alarm that detects and alarms abnormalities such as fire, and wirelessly sends signals to other alarms to output alarms in linkage. [0002] This application uses Japanese Utility Model Application No. 2008-002727 and Japanese Utility Model Application No. 2008-002728 as basic applications, and their contents are incorporated into this application. Background technique [0003] In the past, residential alarms (hereinafter referred to as "alarms") that detect and alarm abnormalities such as fires and gas leaks in houses have been widely used. In recent years, multiple alarms are installed in one household to monitor each room The trend of abnormalities such as fires is also becoming more pronounced (for example, refer to the following Patent Document 1). [0004] In this way, when a plurality of alarms are installed in the resident, there is a concern that the alarm sound may not be heard when there is a person in a room dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B17/00G08B23/00G08B25/10
CPCG08B17/00G08B29/181G08B25/009G08B17/113
Inventor 江川仁隆
Owner HOCHIKI CORP