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1. 发明申请

WO2016044847A1 SNOW AND ICE MELTING SYSTEM AND SENSORS THEREFOR 审中-公开
标题翻译：雪和冰淇淋系统及其传感器
公开(公告)号：WO2016044847A1
公开(公告)日：2016-03-24
申请号：PCT/US2015/051266
申请日：2015-09-21
申请人： PENTAIR THERMAL MANAGEMENT LLC
发明人： ZACH, Juergen, J. , SHIRKHANI, Arsham, Shahriar
IPC分类号： H01Q1/02 , H05B3/84 , H05B6/62
CPC分类号： H05B1/0227 , E01C11/265 , E04D13/0762 , E04D13/103 , E04H9/16 , H05B2214/02
摘要： Embodiments of the invention provide a snow and ice melting heating system that can include a capacitive probe, such as an aerial probe, having a capacitive sensor to improve detection of the onset or accumulation of snow or ice. The capacitive probe provides uniform response to the presence of snow and ice on the capacitive sensor, and the capacitive sensor can be protected from galvanic corrosion by one or more coatings without affecting the detection of snow or ice. The capacitive probe can indicate when heaters should be turned on to melt snow or ice. The system can include a light probe having a color sensor to detect snow cover, or lack thereof, on a monitored surface from the color of reflected light. The light probe provides a monitoring device that can detect when the snow cover has melted and signal for the system heaters to be turned off.
摘要翻译：本发明的实施例提供一种可以包括诸如空中探针的电容式探针的雪和冰融化加热系统，其具有电容传感器以改善雪或冰的开始或积聚的检测。电容式探头对电容式传感器上的雪和冰的存在提供均匀的响应，并且可以通过一个或多个涂层来保护电容传感器免受电镀腐蚀，而不会影响雪或冰的检测。电容式探头可以指示加热器何时打开以融化雪或冰。该系统可以包括具有颜色传感器的光探测器，用于检测来自反射光的颜色的被监视表面上的积雪或不存在。光探针提供了一个监控装置，可以检测雪盖何时熔化，并向系统加热器关闭信号。

2. 发明申请

WO2015073584A1 THERMAL AGE TRACKING SYSTEM AND METHOD 审中-公开
标题翻译：热老化追踪系统及方法
公开(公告)号：WO2015073584A1
公开(公告)日：2015-05-21
申请号：PCT/US2014/065298
申请日：2014-11-12
申请人： PENTAIR THERMAL MANAGEMENT LLC
发明人： ZACH, Juergen, J. , BERES, James, F. , OLSON, Erik
IPC分类号： H02H3/00
CPC分类号： G01N27/00 , G01N25/00 , G01R31/003 , G01R31/021 , G01R31/1272
摘要： Embodiments of the invention provide systems and methods for tracking the thermal age of a self-regulating heating cable. Over a time period, current and voltage data for a cable signal are collected, from which spectral information is extracted. The spectral information has a frequency component and an amplitude component. The cable signal is processed to extract a line frequency signature that includes the electrical system's line current frequency and at least some of its harmonics. A ratio of the amplitudes of at least two of the odd harmonics of the line current frequency is calculated. The ratio is compared to an aging curve indicating the thermal age of the cable as a function of the odd-harmonic ratios. The curve may be obtained in a laboratory setting or in the field by characterizing a cable with zero hours of use. The characterizing may include aging the cable to determine the curve.
摘要翻译：本发明的实施例提供了用于跟踪自调节加热电缆的热寿命的系统和方法。在一段时间内，收集电缆信号的电流和电压数据，从中提取光谱信息。频谱信息具有频率分量和振幅分量。处理电缆信号以提取包括电气系统的线路电流频率和其至少一些谐波的线路频率特征。计算线路电流频率的至少两个奇次谐波的振幅比。将该比率与表示电缆的热寿命作为奇次谐波比的函数的老化曲线进行比较。曲线可以在实验室设置中或在现场通过使用零小时的电缆进行表征来获得。特征可能包括老化电缆以确定曲线。

3. 发明申请

WO2014189975A1 SUB-HARMONIC ARC FAULT DETECTION SYSTEM AND METHOD 审中-公开
标题翻译：副谐波故障检测系统及方法
公开(公告)号：WO2014189975A1
公开(公告)日：2014-11-27
申请号：PCT/US2014/038850
申请日：2014-05-20
申请人： PENTAIR THERMAL MANAGEMENT LLC , ZACH, Juergen, J.
发明人： ZACH, Juergen, J.
IPC分类号： G01R31/08
CPC分类号： G01R31/12 , G01R31/025
摘要： Embodiments of the invention provide systems and methods for detecting a sustained arc in an electrical system. Over a time period, current and voltage data for a load signal are collected, from which spectral information is extracted. The spectral information has a frequency component and an amplitude component. The load signal is processed to remove a line frequency signature from the spectral information. One or more sub-harmonic frequency bands are extracted from the load signal and analyzed to determine the presence of an arc signature therein. The sub-harmonic frequency bands may be centered on frequencies corresponding to an integer number of half line cycle periods. Analysis of the sub-harmonic frequency bands can include detecting the peak amplitudes of the rectified sub-harmonic frequency bands to obtain an indicator signal and determining if the indicator signal exceeds a threshold that indicates the presence of the sustained arc.
摘要翻译：本发明的实施例提供用于检测电气系统中的持续电弧的系统和方法。在一段时间内，收集负载信号的电流和电压数据，从中提取光谱信息。频谱信息具有频率分量和振幅分量。处理负载信号以从频谱信息中去除线路频率特征。从负载信号中提取一个或多个次谐波频带，并对其进行分析，以确定其中存在电弧特征。子谐波频带可以以对应于整数个半行周期周期的频率为中心。亚谐波频带的分析可以包括检测整流次谐波频带的峰值幅度以获得指示符信号，并且确定指示符信号是否超过指示持续电弧存在的阈值。

4. 发明申请

WO2014190145A1 ARC FAULT DETECTION SYSTEM AND METHOD 审中-公开
标题翻译： ARC故障检测系统和方法
公开(公告)号：WO2014190145A1
公开(公告)日：2014-11-27
申请号：PCT/US2014/039124
申请日：2014-05-22
申请人： PENTAIR THERMAL MANAGEMENT LLC
发明人： ZACH, Juergen, J.
IPC分类号： G01R31/08
CPC分类号： G01R31/024 , G01R31/1272
摘要： Embodiments of the invention provide systems and methods for detecting a sustained arc in an electrical system containing polymer-based, semi-conducting components which derive their conductivity from carbon black, carbon nanotubes or other conductive materials. Over a time period, current and voltage data for a cable signal are collected, from which spectral information is extracted. The spectral information has a frequency component and an amplitude component. The cable signal is processed to remove a line frequency signature that includes the electrical system's line current frequency and its harmonics. One or more off-harmonic frequency bands are extracted from the cable signal and analyzed to determine the presence of an arc signature therein. Analysis of the off-harmonic frequency bands can include applying a matched filter to the off-harmonic frequency bands to obtain an indicator signal and determining if the indicator signal exceeds a threshold that indicates the presence of the sustained arc.
摘要翻译：本发明的实施方案提供用于检测包含基于聚合物的半导电组分的电系统中的持续电弧的系统和方法，其从碳黑，碳纳米管或其它导电材料导出其导电性。在一段时间内，收集电缆信号的电流和电压数据，从中提取光谱信息。频谱信息具有频率分量和振幅分量。处理电缆信号以去除包括电气系统的线路电流频率及其谐波的线路频率特征。从电缆信号中提取一个或多个非谐波频带，并对其进行分析，以确定其中存在电弧特征。非谐波频带的分析可以包括对非谐波频带应用匹配滤波器以获得指示符信号，并且确定指示符信号是否超过指示持续电弧的存在的阈值。

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