发明名称 |
Sensor device, and disaster prevention system and electronic equipment each having sensor device incorporated therein. |
摘要 |
<p>The sensor device is capable of detecting the occurrence of a fire and the type of the fire. The sensor device includes a detection element (1) made of an organic semiconductor element or an inorganic semiconductor element which varies in characteristic value (e.g. resistance) in response to both gas produced in a flaming-type fire and a smouldering-type fire. The variation in resistance caused by gas produced in a flaming-type fire is different in polarity from the variation caused by gas produced in a smouldering-type fire. The resistance of the detection element (1) is extracted by a resistance extractor (11) and then fed to a resistance decrease discriminator (12) and a resistance increase discriminator (13), whereby a decrease or increase in resistance of the detection element (1) is discriminated. An information output circuit (14) outputs a predetermined signal (Y1, Y2, Y3) depending on the discrimination results provided by the discriminators (12, 13), to thereby indicate occurrence of a fire (signal Y1) and the type of the fire (signal Y2 or signal Y3). <IMAGE></p> |
申请公布号 |
EP0646791(A2) |
申请公布日期 |
1995.04.05 |
申请号 |
EP19940305515 |
申请日期 |
1994.07.26 |
申请人 |
NITTAN COMPANY, LIMITED |
发明人 |
KIMURA, TETSUO, C/O NITTAN COMPANY LIMITED;TAKAHASHI, NARIMASA, C/O NITTAN COMPANY LIMITED;TANAKA, SEIICHI, C/O NITTAN COMPANY LIMITED;HASHIMOTO, RYUKICHI, C/O NITTAN COMPANY LIMITED |
分类号 |
G01N33/00;G08B17/117;(IPC1-7):G01N33/00;G01N27/12 |
主分类号 |
G01N33/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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