物料搬運工作安全性之自動化評估系統

An Automated System for Evaluating the Safety in Manual Material Handling Task

不當的物料搬運工作是造成下背部傷害的主要因素之一，如何評估物料搬運工作是大家關心之問題。本研究的目的就是希望能根據國人人體計測資料，建立一套方便使用的自動化人工物料搬運工做評估系統。系統的發展主要是利用快速影像擷取技術，自放影機中截取所需要的搬運動作，並結合電腦計算儲存功能，參考國人人體計測資料，及生物力學模式以達成能自動地評估物料搬運工作中，下背部受力的情形，及受傷害的可能性之評估。並找出在整個物料搬運工作周期中，最具危害性的元素，以影像陳示其姿勢，並進而提出正確物料搬運或抬舉重物方式之建議。系統的設計是以C語言撰寫，在撰寫的過程中建立了很多程式庫，這些程式庫將有助於日後的研究與擴充。

Improperly material handling task is one of the main risk factors that cause low back injuries. The purpose of this study is to develop an automated computer system for evaluating the possible low back injuries in manual material handling tasks. The key idea of this system is to use computer vision technique to automatically assess the posture in the process of performing manual material handling tasks. The system can calculate the strains exerted in low back and different joints based on the anthropometric data and the biomechanical models. Then, the system can indicate the worst element during the manual material handling job cycle, and the disc compressive force compare with the specific damage loaded compressive strength to predict the possible injury occurrence. Finally, some recommendations of correct material handling of lifting posture are given. The system is written in C Language and image processing libraries, biomechanical models, and anthropometric data base are built in the system. These will be very useful for future development.