| CPC E02F 9/2033 (2013.01) [E02F 9/24 (2013.01); E02F 9/261 (2013.01); E02F 9/262 (2013.01)] | 11 Claims |
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1. A work machine comprising:
an identification information recognition device configured to recognize identification information on a person who enters a predetermined region around the work machine;
a distance measurement device configured to measure an approach distance from the work machine of each person who enters the predetermined region and approaches the work machine;
an alarm generator that generates an alarm; and
a controller configured to control the work machine,
wherein when a person enters the predetermined region under the condition that the work machine is ready for operation, the controller counting the number of times the person enters the predetermined region as the number of approaches for each person distinguished with the identification information,
wherein the controller controls the work machine based on the counted number of approaches in accordance with the identification information of the person who is in the predetermined region and the approach distance associated with the identification information of the person who is in the predetermined region,
wherein the controller sets a relationship between the number of approaches, the approach distance, and a magnitude of the alarm of the work machine, the relationship being set so that the magnitude of the alarm of the work machine is larger as the number of approaches increases or the approach distance decreases, and
wherein to control the work machine, the controller determines the magnitude of the alarm of the work machine for each person who is in the predetermined region based on the relationship, selects a largest value among the magnitudes of the alarm, and controls the alarm generator according to the largest value.
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