| 摘要 |
PROBLEM TO BE SOLVED: To correctly determine danger of collision and intrusion into an intrusion inhibit area of construction machinery having a jib capable of performing at least any movement of turn or derricking such as a crane. SOLUTION: GPS antennas 12, 14 are attached to two sections including the jib of the traveling crane to detect three-dimensional absolute coordinate by a GPS measuring device 15. The result of detection is transmitted to a monitoring device 18 from a radio communication device 16. In the monitoring device 18, position and attitude of the traveling crane are calculated based on position information by a position attitude calculating part 22, and a danger determining part 26 determines the presence or absence of danger such as collision based on the result of calculation and three-dimensional model data of each traveling crane stored in a model storage part 24. When it is determined that there is danger, a determined result transmission part 28 transmits an alarm signal to the corresponding crane. COPYRIGHT: (C)2005,JPO&NCIPI
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