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81. 发明公开

EP1769473A1 SMOKE DETECTOR CALIBRATION 有权
标题翻译：校准的烟雾警报
公开(公告)号：EP1769473A1
公开(公告)日：2007-04-04
申请号：EP05801227.9
申请日：2005-06-24
申请人： Tyco Safety Products Canada Ltd.
发明人： MI, Zhexin , RATTMAN, William, J.
IPC分类号： G08B17/107 , G08B29/20
CPC分类号： G08B29/20 , G08B17/107 , G08B17/113 , G08B29/22
摘要： A method for calibrating a smoke detector includes adjusting the sensitivity of the smoke detector to get a consistent predetermined response over the expected operating range. The sensitivity is generally consistent for all detectors and an independent offset value is determined for each detector. This offset value basically corresponds to the signal from the detector in a clean atmosphere. The sensitivity of the smoke detector is determined by measuring the response at different levels of obscuration and then appropriately adjusting the output of the light source of the detector. This process is repeated until the desired sensitivity is achieved. Thereafter, the offset value is measured or calibrated and stored in the smoke detector for use in setting alarm values.

82. 发明公开

EP1466305A4 OBSCURATION DETECTOR 审中-公开
标题翻译：遮挡检测器
公开(公告)号：EP1466305A4
公开(公告)日：2005-03-30
申请号：EP03705668
申请日：2003-01-07
申请人： PITTWAY CORP
发明人： LANG SCOTT , WISCHSTADT GREGORY
IPC分类号： G01B11/27 , G01J1/00 , G01J1/08 , G01N21/17 , G08B17/103 , G08B29/20 , G08B1/00
CPC分类号： G01J1/08 , G01B11/272 , G01J1/0418 , G01J1/0437 , G08B17/103
摘要： An automatically testable obscuration detector incorporates one of an electrically controllable filter or a mechanically selected filter. Filtered outputs can be compared to expected outputs by control circuitry to automatically assess detector operation.

83. 发明公开

EP1366477A1 VERFAHREN ZUR BRANDERKENNUNG 有权
标题翻译：法发现火灾
公开(公告)号：EP1366477A1
公开(公告)日：2003-12-03
申请号：EP02706665.3
申请日：2002-02-05
申请人： ROBERT BOSCH GMBH
发明人： PFEFFERSEDER, Anton , SIBER, Bernd , HENSEL, Andreas , OPPELT, Ulrich
IPC分类号： G08B29/18 , G08B29/20
CPC分类号： G08B29/188 , G08B29/20
摘要： A method for fire recognition is disclosed, serving to avoid false alarms, in which an alarm threshold is determined depending upon signal parameters received from at least one sensor signal. False alarms can thus be advantageously filtered out. The above is further improved by the establishment of an alarm interval, for which the alarm threshold must be exceeded, in order for an alarm to be recognised. Said alarm interval can also be adapted according to signal parameters. An upper and lower limit are set for both alarm interval and alarm threshold, in order to incorporate a certain security, such that the alarm interval and alarm threshold do not adopt values which would put a functioning of the fire alarm at risk. Several sensor signals may be used, whereby the signal parameters are then generated by linking the sensor signals. A light-scattering smoke detector, fitted with a labyrinth and a detector chamber is preferably used.

84. 发明授权

EP0580110B1 Smoke detecting apparatus for fire alarm 失效
标题翻译：烟雾探测装置的火灾报警
公开(公告)号：EP0580110B1
公开(公告)日：1997-10-22
申请号：EP93111565.3
申请日：1993-07-19
申请人： NOHMI BOSAI LTD.
发明人： Mochizuki, Mikio, c/o Nohmi Bosai Ltd. , Ito, Hideo, c/o Nohmi Bosai Ltd. , Kobayashi, Ryousaku, c/o Nohmi Bosai Ltd. , Morita, Tadao, c/o Nohmi Bosai Ltd.
IPC分类号： G08B29/20
CPC分类号： G08B29/185 , G08B17/107

85. 发明公开

EP0634009A4 IMPROVED DIFFUSION-TYPE GAS SAMPLE CHAMBER. 失效
标题翻译：扩散式改进的采样室。
公开(公告)号：EP0634009A4
公开(公告)日：1996-01-03
申请号：EP93917242
申请日：1993-07-16
申请人： GAZTECH INT CORP
发明人： WONG JACOB Y
IPC分类号： G01N21/03 , G01N21/05 , G01N21/15 , G01N21/35 , G01N21/61 , G01N21/85 , G08B17/117 , G08B29/20
CPC分类号： G01N21/3518 , G01N21/031 , G01N21/0332 , G01N21/15 , G01N21/3504 , G01N21/61 , G01N2021/0314 , G01N2021/0385 , G01N2021/158 , G01N2021/8585 , G01N2201/0228 , G08B17/117 , G08B29/20
摘要： The improved sample chamber includes an elongated hollow tube (12) closed at one end (14) and having specularly-reflective inwardly facing surfaces (16). A source (26) of radiation and a detector (28) of radiation are mounted side by side in the open end of the hollow tube, both facing the closed end. A plurality of filtering apertures (20) are formed in the tube (12), and each aperture is covered by a sheet (22) of a semipermeable membrane that serves to prevent airborne particles larger than a predetermined size from entering the chamber while not interfering with the free diffusion of the gas to be measured into and out of the chamber. The use of an elongated hollow tube that is closed at one end results in no loss in the efficiency with which the radiation is conducted from the source to the detector while decreasing the external length of the chamber by 50 percent.

86. 发明公开

EP0580110A1 Smoke detecting apparatus for fire alarm 失效
标题翻译： Rauchdetektionsvorrichtungfüreinen Feueralarm。
公开(公告)号：EP0580110A1
公开(公告)日：1994-01-26
申请号：EP93111565.3
申请日：1993-07-19
申请人： NOHMI BOSAI LTD.
发明人： Mochizuki, Mikio, c/o Nohmi Bosai Ltd. , Ito, Hideo, c/o Nohmi Bosai Ltd. , Kobayashi, Ryousaku, c/o Nohmi Bosai Ltd. , Morita, Tadao, c/o Nohmi Bosai Ltd.
IPC分类号： G08B29/20
CPC分类号： G08B29/185 , G08B17/107
摘要： A smoke detecting apparatus for fire alarm of the present invention has a smoke chamber into which smoke to be detected is introduced, a light emitting lamp (10) disposed in the smoke chamber, a light receiving element (20) disposed in the smoke chamber so as to receive the light emitted from the light emitting lamp, an A/D converting circuit (43) for converting the output signal from the light receiving element into a digital signal, a memory (61) for storing data therein, a computing device for storing ink said memory, as first calibration data, the output data from the A/D converting circuit when the smoke chamber is filled with a first reference gas, storing in said memory, as second calibration data, the output data from the A/D converting circuit when the smoke chamber is filled with a second reference gas, and computing a proper smoke density corresponding to the output data from the A/D converting circuit on the basis of the first and second calibration data and the output data from the A/D converter circuit, a display device for displaying the smoke density computed by the computing device.
摘要翻译：本发明的火灾报警器的烟雾检测装置具有引入烟雾的烟室，设置在烟室内的发光灯（10），设置在烟室内的光接收元件（20），为了接收从发光灯发出的光，将用于将来自光接收元件的输出信号转换为数字信号的A / D转换电路（43），用于存储数据的存储器（61），用于存储数据的计算装置将所述存储器作为第一校准数据存储在当烟室充满第一参考气体时，来自A / D转换电路的输出数据，作为第二校准数据存储在所述存储器中，来自A / D的输出数据当烟室充满第二参考气体并根据第一和第二校准数据和输出数据计算与来自A / D转换电路的输出数据相对应的适当的烟雾浓度时，来自A / D转换器电路的显示装置，用于显示由计算装置计算的烟浓度。

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