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    • 11. 发明授权
    • Smoke sensor
    • 烟雾传感器
    • US08638436B2
    • 2014-01-28
    • US13395626
    • 2009-09-15
    • Manabu Dohi
    • Manabu Dohi
    • G01N21/49G08B21/00
    • G08B17/107G01N21/53G01N2021/4707G01N2021/4709G08B17/113
    • [Problem to be Solved]To provide a smoke sensing system, a smoke sensor and a receiver that can accurately determine the type of smoke.[Solution]The smoke sensor includes: a light-projecting unit 13 for projecting detection light toward a monitored area; a first light-receiving unit 14a, a second light-receiving unit 14b and a third light-receiving unit 14c for receiving the detection light scattered by particles existing in the monitored area, the first light-receiving unit 14a, the second light-receiving unit 14b and the third light-receiving unit 14c being arranged such that the angle between the light-receiving axis of the first light-receiving unit 14a and the light-projecting axis of the light-projecting unit 13, the angle between the light-receiving axis of the second light-receiving unit 14b and the light-projecting axis of the light-projecting unit 13 and the angle between the light-receiving axis of the third light-receiving unit 14c and the light-projecting axis of the light-projecting unit 13 are different from one another; a smoke type determination unit 47 for determining the type of smoke generated in the monitored area based on the output values output from the first light-receiving unit 14a, the second light-receiving unit 14b and the third light-receiving unit 14c; and a fire determination unit 48 for determining whether or not a fire has occurred in the monitored area based on the output values output from the first light-receiving unit 14a, the second light-receiving unit 14b and the third light-receiving unit 14c.
    • [要解决的问题]提供可以准确确定烟雾类型的烟雾感测系统,烟雾传感器和接收器。 [解决方案]烟雾传感器包括:用于将检测光投射到被监视区域的投光单元13; 第一光接收单元14a,第二光接收单元14b和第三光接收单元14c,用于接收由监视区域中存在的颗粒散射的检测光,第一光接收单元14a,第二光接收 单元14b和第三光接收单元14c被布置成使得第一受光单元14a的受光轴线与投光单元13的光线轴之间的角度, 第二光接收单元14b的接收轴和投光单元13的发光轴以及第三光接收单元14c的受光轴与发光单元13的光线轴之间的角度。 突出单元13彼此不同; 烟雾类型确定单元47,用于基于从第一光接收单元14a,第二光接收单元14b和第三光接收单元14c输出的输出值来确定在监视区域中产生的烟雾的类型; 以及基于从第一光接收单元14a,第二光接收单元14b和第三光接收单元14c输出的输出值来确定监视区域中是否发生火灾的火灾判定单元48。
    • 12. 发明申请
    • SMOKE SENSOR
    • 烟雾传感器
    • US20120170035A1
    • 2012-07-05
    • US13395626
    • 2009-09-15
    • Manabu Dohi
    • Manabu Dohi
    • G01N21/49
    • G08B17/107G01N21/53G01N2021/4707G01N2021/4709G08B17/113
    • [Problem to be Solved]To provide a smoke sensing system, a smoke sensor and a receiver that can accurately determine the type of smoke.[Solution]The smoke sensor includes: a light-projecting unit 13 for projecting detection light toward a monitored area; a first light-receiving unit 14a, a second light-receiving unit 14b and a third light-receiving unit 14c for receiving the detection light scattered by particles existing in the monitored area, the first light-receiving unit 14a, the second light-receiving unit 14b and the third light-receiving unit 14c being arranged such that the angle between the light-receiving axis of the first light-receiving unit 14a and the light-projecting axis of the light-projecting unit 13, the angle between the light-receiving axis of the second light-receiving unit 14b and the light-projecting axis of the light-projecting unit 13 and the angle between the light-receiving axis of the third light-receiving unit 14c and the light-projecting axis of the light-projecting unit 13 are different from one another; a smoke type determination unit 47 for determining the type of smoke generated in the monitored area based on the output values output from the first light-receiving unit 14a, the second light-receiving unit 14b and the third light-receiving unit 14c; and a fire determination unit 48 for determining whether or not a fire has occurred in the monitored area based on the output values output from the first light-receiving unit 14a, the second light-receiving unit 14b and the third light-receiving unit 14c.
    • [要解决的问题]提供可以准确确定烟雾类型的烟雾感测系统,烟雾传感器和接收器。 [解决方案]烟雾传感器包括:用于将检测光投射到监视区域的投光单元13; 第一光接收单元14a,第二光接收单元14b和第三光接收单元14c,用于接收由监视区域中存在的颗粒散射的检测光,第一光接收单元14a,第二光接收 单元14b和第三光接收单元14c被布置成使得第一受光单元14a的受光轴线与投光单元13的光线轴之间的角度, 第二光接收单元14b的接收轴和投光单元13的发光轴以及第三光接收单元14c的受光轴与发光单元13的光线轴之间的角度。 突出单元13彼此不同; 烟雾类型确定单元47,用于基于从第一光接收单元14a,第二光接收单元14b和第三光接收单元14c输出的输出值来确定在监视区域中产生的烟雾的类型; 以及基于从第一光接收单元14a,第二光接收单元14b和第三光接收单元14c输出的输出值来确定监视区域中是否发生火灾的火灾判定单元48。
    • 15. 发明授权
    • Transformer monitoring system
    • 变压器监控系统
    • US07222518B2
    • 2007-05-29
    • US11417413
    • 2006-05-03
    • Manabu DohiToshiki ShirahataTakayiki Kondo
    • Manabu DohiToshiki ShirahataTakayiki Kondo
    • G00N11/00
    • G01N33/28H01F2027/404
    • An oil-filled transformer monitoring system is provided which calculates an oil temperature of an oil-filled transformer with high precision from a current of the transformer and an ambient temperature. The oil-filled transformer monitoring system of this invention has an oil temperature calculation device to calculate a transformer oil temperature using measurements from a transformer current measuring device and an ambient temperature measuring device. The transformer monitoring system also has an oil temperature measuring device and compares an output value from the oil temperature calculation device with an output value from the oil temperature measuring device to detect any anomaly.
    • 提供一种充油变压器监控系统,其从变压器的电流和环境温度高精度地计算充油变压器的油温。 本发明的充油变压器监控系统具有使用来自变压器电流测量装置和环境温度测量装置的测量值来计算变压器油温的油温计算装置。 变压器监控系统还具有油温测量装置,将油温计算装置的输出值与油温测量装置的输出值进行比较,以检测任何异常情况。
    • 17. 发明授权
    • Light scattering type smoke sensor
    • 光散射型烟雾传感器
    • US06914535B2
    • 2005-07-05
    • US10331616
    • 2002-12-31
    • Hidenari MatsukumaManabu DohiHiroshi HonmaHiroshi Shima
    • Hidenari MatsukumaManabu DohiHiroshi HonmaHiroshi Shima
    • G08B17/107G08B17/10
    • G08B17/107G08B17/113
    • A light scattering type smoke sensor comprising a holder with openings embedded with light emitting part and light detecting part respectively, which do not protrude into the smoke detection chamber. The optical axis of light emitting part intersects at a predetermined first angle α in the horizontal direction with the optical axis of the light detecting part at a predetermined second angle β in the vertical direction. The optical axis of the light emitting part and optical axis of the light detecting part further comprise a configuration angle δ in the range of 90˜120 degrees used as the supplementary angle for the scattering angle θ. Accordingly, the smoke detection part is further constituted in a thin-shaped light scattering smoke sensor which enables the setup of a scattering angle with no directivity in the smoke influx to the smoke detection chamber.
    • 一种散射型烟雾传感器,包括分别具有嵌入发光部分和光检测部分的开口的保持器,其不突出到烟雾检测室中。 光发射部分的光轴在水平方向上以预定的第一角度α与光检测部分的光轴在垂直方向上以预定的第二角度β相交。 发光部分的光轴和光检测部分的光轴还包括用作散射角θ的补角的90度至120度范围内的配置角度。 因此,烟雾检测部进一步构成为能够在烟雾入射到烟雾检测室的烟雾中设定无方向性的散射角的薄状光散射烟雾传感器。