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1.发明申请公开(公告)号：US20190130758A1
公开(公告)日：2019-05-02
申请号：US16233690
申请日：2018-12-27
发明人： Larry D. Frederick , Paul Hammond
CPC分类号： G08G1/166 , B60Q9/008 , F16P3/14 , F16P3/145 , F16P3/147 , G08B3/10 , G08B21/0213 , G08B21/0275
摘要： The invention relates to a complex proximity safety and warning system. The invention provides a safety system comprising a generator that generates a magnetic field that establishes a boundary, where the generator is capable of receiving radio frequency signals. Also provided is a radio frequency device that sends radio frequency signals, the radio frequency device being capable of sensing the magnetic field and generating a radio frequency response.
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公开(公告)号：US11790784B2
公开(公告)日：2023-10-17
申请号：US17845527
申请日：2022-06-21
CPC分类号： G08G1/166 , B60Q9/008 , F16P3/14 , F16P3/145 , F16P3/147 , G08B3/10 , G08B21/0213 , G08B21/0275
摘要： The invention relates to a complex proximity safety and warning system. The invention provides a safety system comprising a generator that generates a magnetic field that establishes a boundary, where the generator is capable of receiving radio frequency signals. Also provided is a radio frequency device that sends radio frequency signals, the radio frequency device being capable of sensing the magnetic field and generating a radio frequency response.
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3.发明申请公开(公告)号：US20200111365A1
公开(公告)日：2020-04-09
申请号：US16595869
申请日：2019-10-08
发明人： Larry D. Frederick , Paul Hammond
摘要： The invention relates to a complex proximity safety and warning system. The invention provides a safety system comprising a generator that generates a magnetic field that establishes a boundary, where the generator is capable of receiving radio frequency signals. Also provided is a radio frequency device that sends radio frequency signals, the radio frequency device being capable of sensing the magnetic field and generating a radio frequency response.
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公开(公告)号：US09898930B2
公开(公告)日：2018-02-20
申请号：US15288507
申请日：2016-10-07
发明人： Larry D. Frederick , Paul Hammond
CPC分类号： G08G1/166 , B60Q9/008 , F16P3/14 , F16P3/145 , F16P3/147 , G08B3/10 , G08B21/0213 , G08B21/0275
摘要： The invention relates to a complex proximity safety and warning system. The invention provides a safety system comprising a generator that generates a magnetic field that establishes a boundary, where the generator is capable of receiving radio frequency signals. Also provided is a radio frequency device that sends radio frequency signals, the radio frequency device being capable of sensing the magnetic field and generating a radio frequency response.
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公开(公告)号：US10170000B2
公开(公告)日：2019-01-01
申请号：US15878707
申请日：2018-01-24
发明人： Larry D. Frederick , Paul Hammond
摘要： The invention relates to a complex proximity safety and warning system. The invention provides a safety system comprising a generator that generates a magnetic field that establishes a boundary, where the generator is capable of receiving radio frequency signals. Also provided is a radio frequency device that sends radio frequency signals, the radio frequency device being capable of sensing the magnetic field and generating a radio frequency response.
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公开(公告)号：US09805579B2
公开(公告)日：2017-10-31
申请号：US14798051
申请日：2015-07-13
发明人： Larry D. Frederick
CPC分类号： G08B21/22 , G01R33/0206 , G08B21/0275 , G08G1/163
摘要： This disclosure provides a method and system for extending the capability of a proximity detection system that is based on use of low frequency magnetic fields, to avoid conflicts in crowded work sites. The improvement is attained by combining the advantages of these low frequency magnetic fields with the advantages of much higher frequency, radiated (RF) signals that are controlled to be produced at the same time, concurrent with each other, in a coordinated and/or synchronous manner.
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公开(公告)号：US20150317897A1
公开(公告)日：2015-11-05
申请号：US14798051
申请日：2015-07-13
发明人： Larry D. Frederick
IPC分类号： G08B21/22
CPC分类号： G08B21/22 , G01R33/0206 , G08B21/0275 , G08G1/163
摘要： This disclosure provides a method and system for extending the capability of a proximity detection system that is based on use of low frequency magnetic fields, to avoid conflicts in crowded work sites. The improvement is attained by combining the advantages of these low frequency magnetic fields with the advantages of much higher frequency, radiated (RF) signals that are controlled to be produced at the same time, concurrent with each other, in a coordinated and/or synchronous manner.
摘要翻译： 本公开提供了一种用于扩展基于使用低频磁场的接近检测系统的能力的方法和系统，以避免在拥挤的工作现场中的冲突。 通过将这些低频磁场的优点结合起来，具有更高频率，辐射（RF）信号的优点，可以在协调和/或同步的同时彼此同时产生的辐射（RF）信号的优点来实现改进。 方式。
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公开(公告)号：US11380205B2
公开(公告)日：2022-07-05
申请号：US16993806
申请日：2020-08-14
摘要： The invention relates to a complex proximity safety and warning system. The invention provides a safety system comprising a generator that generates a magnetic field that establishes a boundary, where the generator is capable of receiving radio frequency signals. Also provided is a radio frequency device that sends radio frequency signals, the radio frequency device being capable of sensing the magnetic field and generating a radio frequency response.
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9.发明申请公开(公告)号：US20200372801A1
公开(公告)日：2020-11-26
申请号：US16993806
申请日：2020-08-14
发明人： Larry D. Frederick , Paul Hammond
摘要： The invention relates to a complex proximity safety and warning system. The invention provides a safety system comprising a generator that generates a magnetic field that establishes a boundary, where the generator is capable of receiving radio frequency signals. Also provided is a radio frequency device that sends radio frequency signals, the radio frequency device being capable of sensing the magnetic field and generating a radio frequency response.
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公开(公告)号：US09761143B2
公开(公告)日：2017-09-12
申请号：US14840412
申请日：2015-08-31
发明人： Tom Michaud , Michael Berube , Brian Dunkin , David Hakins , Dwayne Towery , Gary Herda
摘要： Collision avoidance systems and methods. In some embodiments the collision avoidance systems may include a magnetic field generator for generating a low frequency oscillating magnetic field, and a magnetic field detector, wherein the system is configured to determine a relative speed between the magnetic field generator and the detector using magnetic speed pings generated by the magnetic field generator. In other embodiments, the methods may include generating a low frequency oscillating magnetic field from a magnetic field generator, detecting the magnetic field from a magnetic field detector, and determining a relative speed between the magnetic field generator and the detector using magnetic speed pings generated by the magnetic field generator.
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