Shovel having audio output device installed in cab
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United States of America Patent
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Dec 5, 2017
Grant Date -
Jan 7, 2016
app pub date -
Sep 9, 2015
filing date -
Mar 19, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A perimeter-monitoring device has a human presence determining part configured to determine presence or absence of a human in each of a plurality of monitoring spaces located around the shovel and an alarm controlling part configured to control a plurality of alarm output parts that are located in a cab of the shovel and emit an alarm to an operator. The alarm controlling part causes a right alarm output part to emit an alarm when it is determined that a human exists in a right monitoring space, causes a left alarm output part to emit an alarm when it is determined that a human exists in a left monitoring space, and causes a back alarm output part to emit an alarm when it is determined that a human exists in a back monitoring space.
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