Research Of Intelligent Monitoring And Control Upper-End System Based On CANopen

At present, the shipping intelligent monitoring system has many problems of complex structure, poor equipment interoperability, inconvenient maintenance and lack of intelligent management of state information. An intelligent monitoring system was developed in this paper to meet the applied needs after researched the actuality of the system in domestic and overseas.The structure of CANopen protocol, the characteristic of object dictionary, the developed platform of EM9000,WinCE operation system and Embedded Visual C++ are introduced. It fulfilled the software system using some technology of multithread , callback processing, message and document handling mechanism in the Embedded Visual C++ . The communication between objects and the object dictionary are established by calling the standard transceiver interface of CAN dynamic link library and packaging CANopen communication class.Modularize design concept was adopted to the program, and it enhanced the flexibility of the software. The paper discussed the relationship among the real-time display module, network management module, system configuration module and real-time print module and their corresponding disposing processes . The system received the analog data, and the data will real-time display or give an alarm. The upper-computer can manage and configure the nodes of lower-computer on real-time by sending some message of the nodes. The confirmed service enhanced the system's security and reliability. The operating system uses its own time disposed mode, and it makes timing more convenient and accurate.The experimental results show that the system runs stably and the interface displays vividly. The system also has some other functions, for example memory and printing and so on. The system has highly applied value.