DEVELOPMENT OF THE TRAFFIC DATA COLLECTION SYSTEM BASED ON MC9S12D64 MICROCONTROLLER

摘要

Traffic data-collecting is one of the basic contents of Intelligent Transportation System (ITS).Faced on the faults of the current traffic data-collecting devices, a design scheme of road traffic dynamic data-collecting system come up based on 9S12D64 microcontroller in this paper, furthermore, the operating principle for the system discussed in detail, and the hardware structure and software design, etc.Based on MD (modular design) and CAN field-bus techniques, the system is combination with the high-speed of MC9S12D64 microcontroller.The idea of design scheme supplied in this paper is also suited to other CAN distributed-control system.