由于石油行业使用的钢管因长度规格不等，为使钻采工具和设备下至规定的油层位置，每次作业时需对钢管的长度进行测量，特别是分层开采时，因油层厚度各异，钻采工具和设备安装位置的准确性直接影响采油效率。目前，对钢管的累计测长是通过人工皮尺来完成的，每丈量一根钢管至 Due to the different lengths of steel pipes used in the oil industry, in order to make the drilling tools and equipment down to the prescribed oil level, the length of the steel pipe needs to be measured for each operation. In particular, when stratified mining, , The accuracy of drilling tools and equipment installation location directly affects the oil production efficiency. At present, the cumulative length of the steel pipe length measurement is done by hand, every measured a pipe to