The Machine Vision Dial Automatic Drawing System—Based on CAXA Secondary Development

Whether the pointer recognition of an SF6 (sulfur hexafluoride) density controller is correct or not directly related to enterprise security. Therefore, a system that highly efficient, precise, and secure required. In this paper, we set up detection platform for efficient readings. To detect with high accuracy, propose dial angle method based on OpenCV obtains high-precision information. We then use Socket communication transmit information secondary development program. Finally, ObjectCRX software package Visual Studio 2015 quickly access CAXA electronic drawing board graphics database, carry out 2021, comprehensively apply various functions draw overall outline dial. read in order current test product CAD drawing. After verification, average error rate 0.69°, which much lower than standard 2.7°. Based machine vision technology, researched designed automatic system, after many tests, runs stably accuracy meets needs enterprises.