Methods and systems for alerting persons of obstacles or approaching hazards
作者： Steven L. Smith
DOI:
关键词: Electrical engineering 、 Electronic engineering 、 Warning system 、 Radio signal 、 Vibration 、 Signal 、 Engineering
摘要: Apparatus and methods for alerting persons of obstacles and/or approaching hazards are provided. Embodiments may include a warning system that includes radio source configured to transmit signal device. The device at least one vibration device, two receiver devices receive the signal, processing operably coupled wherein is determine direction distance from based upon determined
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