Title:
MONITORING DEVICE FOR CONSTRUCTION MACHINE
Document Type and Number:
Japanese Patent JP2015168972
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a monitoring device for a construction machine that continues to output an alarm when it can be determined that a heat source is present nearby a construction machine even in the case that the heat source stops within a detection range of a pyroelectric infrared sensor and cannot be detected.SOLUTION: A monitoring device 100 has an alarm control part 11 which controls an alarm output part 7 based upon a determination result of a person presence/absence determination part 10. The person presence/absence determination part 10 determines that a person is present nearby a shovel 60 when a short-distance sensor 6C detects a person OBJ, determines that the person moves away from nearby the shovel 60 when a long-distance sensor 6F detects the person OBJ while the short-distance sensor 6F misses the person OBJ after detecting the person OBJ, and also continues to determine that the person is present nearby the shovel 60 unless the long-distance sensor 6F detects the person OBJ.
Inventors:
IZUMIKAWA TAKEYA
Application Number:
JP2014044237A
Publication Date:
September 28, 2015
Filing Date:
March 06, 2014
Export Citation:
Assignee:
SUMITOMO CONSTR MACHINERY MFG
International Classes:
E02F9/24; B60R21/34
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito
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