Abstract: Building a perfect urban public traffic supervisory control system is the press for an urban public traffic system to advance management level, efficiency of running and quality of service. An urban public traffic supervisory control system should get the position and state of running vehicles, and then, tells the information to managers and passengers by pellucid manner, it also can transmit manager′s instruction to the driver. An urban public traffic supervisory control system is a typical CPS. This paper proposed an economical and applied urban public traffic supervisory control system based on GPS and GPRS, and analyzed some issues in implement.

Key words: GPS, GPRS, public traffic, supervisory control system, Internet of things, cyber－physical system(CPS)