Mobile vehicle, safety warning device and safety warning method
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United States of America Patent
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Jun 9, 2020
Grant Date -
Sep 19, 2019
app pub date -
Nov 2, 2018
filing date -
Mar 15, 2018
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Abstract
A safety warning method includes the following steps. Step 1 is to generate a plurality of distance sensing signals by an optical object ranging module according to an approaching object. Step 2 is to obtain a relative distance trend according to the distance sensing signals and its corresponding time. Step 3 is to generate a control signal according to the relative distance trend. Step 4 is to drive and control a warning device to generate a warning signal according to the control signal. In addition, the present invention also provides a mobile vehicle and a safety warning device.
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