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2. 发明公开

EP0769688A1 ENVIRONMENT MONITOR APPARATUS 失效
标题翻译： VORRICHTUNG ZURUMGEBUNGSÜBERWACHUNG
公开(公告)号：EP0769688A1
公开(公告)日：1997-04-23
申请号：EP96912306.6
申请日：1996-05-07
申请人： JAPAN ENERGY CORPORATION
发明人： NAYA, Kazunari, Japan Energy Corporation
IPC分类号： G01J1/02
CPC分类号： G01J5/62 , G01J5/0014 , G08B17/12
摘要： A disc having a plurality of slits radially each of which have approximately the same width as a diameter of a photoreceptor of the sensor, and a rotary chopper, are arranged to coaxially rotate. When one of the slits faces a sensor, the disc and the chopper are rotated at a rotational speed so that the incident infrared radiation into the sensor is chopped 2-16 times by the chopper. At least two sets of sensors, each set of which comprises a plurality of sensors for sensing infrared radiation of different wavelength bands to one another, the sensors being arranged behind the chopper and the disc along a radial direction centered at the rotational axis of the chopper, are provided. Accordingly, because detection signals by scanning a monitored area in a X-direction and a Y-direction respectively are obtained, it is possible to easily recognize the position where the disastrous fire occurs in the visual field and to detect positions of disastrous fires in distinction from one another even if those occur at a plurality of positions.
摘要翻译：具有径向各自具有与传感器的感光体的直径大致相同的宽度的多个狭缝和旋转斩波器的盘被布置成同轴旋转。当其中一个狭缝面向传感器时，盘和斩波器以旋转速度旋转，使得通过斩波器将入射到传感器中的入射红外辐射被切碎2-16次。至少两组传感器，每组传感器包括用于感测彼此不同波长带的红外辐射的多个传感器，传感器沿着斩波器的旋转轴线的径向方向布置在斩波器和盘的后面，被提供。因此，由于分别通过在X方向和Y方向上扫描监视区域的检测信号，能够容易地识别在视野中发生灾难性火灾的位置，并且可以区别地检测灾难性火灾的位置即使这些发生在多个位置也是彼此。

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