| 摘要 |
<p>PROBLEM TO BE SOLVED: To simply collect information required for preventing a worker from having an accident in a work site in real time so as to secure the safety of work on site.SOLUTION: A worker 5 in a work area 3 is allowed to carry a vibration sensor 114 and a first communication device 113 which transmits a radio signal including an output waveform thereof. A plurality of base stations 30 are arranged along a flow line of the worker 5. When receiving a radio signal from the first communication device 113, the base station 30 transmits the output waveform to which position specification information is attached, to an information processing device 40. The information processing device 40 stores an output waveform when the worker 5 is normally working in association with position specification information thereof as a reference waveform. The information processing device 40 then compares the output waveform received by the base station 30 during the work by the worker 5 to the reference waveform corresponding to the position specification information and determines whether the worker 5 encounters a danger. When the worker 5 encounters a danger, the fact is stored in association with the position specification information.</p> |
