伺服的基本概念是准确、精确、快速定位。变频是伺服控制的一个必须的内部环节，伺服驱动器中同样存在变频（要进行无级调速）-The basic concept of the servo is accurate, precise and rapid positioning. A servo-controlled inverter is necessary internal links, there are also servo drive frequency (to variable speed)

indy 通信服务端,GPS定位OBD数据解析-indy communications server, GPS positioning OBD data analysis

实现多线程服务器，实现GPS定位点坐标和工作状态解析、存储、以及安全距离判断、实时发送报警信息、数据库使用mysql。-Multi-threaded server, realize GPS positioning coordinates and work state analysis, storage, and security the judge, send real-time alarm information, mysql.