Abstract of Special Research Report (SRR-No.23)
National Institute of Occupational Safety and Health, Japan
A Study on Safety Measures for Exacavators Using Virtual Reality Technology
|Kiyoshi FUKAYA and Shigeo UMEZAKI|
: In the field of the civil engineering and construction business, there are many accidents caused by construction machinery. The number of accidents is large next to that of fall accidents. Above all, the number of accidents due to excavators is greater number of accidents due to all construction machinery. The ratio of the fatal accidents due to excavators to the all of the civil and construction accidents is increasing.
Development of Excavator Operation Simulator
|Kiyoshi FUKAYA, Shigeo UMEZAKI, Jian LU, Takahiro NAKAMURA and Yoshiyuki EGAWA|
: In the field of the civil and construction work site, there are many accidents caused by construction machinery such as an excavator. Such machinery is operated by a person and the prevention of an accident is entrusted to the person. To take the safety measures knowing of operator's human factors is needed. Therefore to investigate the human factors of operators, the excavator simulator using virtual reality technology was developed.
Eye Movement and Useful Field of View in the Operation of Exacavator
|Takahiro NAKAMURA,Kiyoshi FUKAYA, Jian LU,Yoshiyuki EGAWA and Hikaru KOSHIMIZU|
: What is the operator watching while he operates his machinery? Though this is a very simple question, it is very important in order to investigate the background factor for disasters caused by excavators. Because, the possibility to reduce the disaster depends how accurately the operators recognize and avoid nearby workers, dangerous events, and so on. However, researches, which answer such questions, have not been carried out so far.
Detection of Intrusion into the Dangerous Region by Image Recognition and Measurement
|Jian LU and Kiyoshi FUKAYA|
: As mentioned in the previous papers of this report, one purpose of this specific research is to clarify the attention ability of the excavator driver by ergonomics methods. Another purpose is to propose and develop the automatic safety device as a safety support means for reducing the accident resulted from the human error of the driver. The intrusion detection device which detects the intrusion into the dangerous region in the working area of an excavator is such a kind of automatic safety device. This paper involves the detection method used in intrusion detection device for excavators.
Countermeasure Against Human's Approaching an Excavator
: There are two kinds of countermeasures against caught accidents by excavators. One is related to excavators and the other is related to co-workers. In this chapter the latter approach, that is, the countermeasures to prevent co-workers from approaching excavators were studied.