POSITIONING SYSTEM FOR DETECTING POSITION OF CLEANSING DEVICE
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United States of America Patent
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N/A
Issued Date -
Aug 22, 2013
app pub date -
Feb 21, 2012
filing date -
Feb 21, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A positioning system for detecting the position of a cleansing device is provided. The positioning system includes a cleansing device and a base station. The cleansing device includes a controlling unit, a cleaning module, a first emitting unit, and a second emitting unit. The controlling unit controls cleansing operation performed on a cleansing region taken care by the cleaning module, controls the first emitting unit to emit an initial signal, and controls the second emitting unit to emit an ultrasonic signal. The base station includes a first receiving unit, two second receiving units, and a computing unit. The first receiving unit receives the initial signal. The second receiving units receive the ultrasonic signal. The computing unit computes the position of the cleansing device according to the initial signal received and the point in time when the ultrasonic signal is received.
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