Hardware platform based on Acorn RISC Machine（ARM） is used to acquire cable images in real time

process images through Otsu algorithm. After these steps

real specific numeric value can be calculated and sent to personal computer（PC）

use Java software to analyze data

when there has a substandard data

alarm will be sent.By test

the system can fastly process images

and data in a short time and warn for false data. This system has good functions and high business value

make slight changes

it can be used to other relevant industries.