Research And Implementation Of C8051F-Based Data Acquisition And Transmission Platform

Data acquisition and transmission system is closely related to people’s lives and in most cases it is used in production environments where real-time data monitoring is in demand. It helps relieve people from trivial work, increases productivity and reduces cost. A common data acquisition system only supports one transmission method, which has greatly limited its range of application, so a data acquisition and transmission platform based on C8051F MCU is proposed in this thesis.A general-purpose data acquisition and transmission platform is introduced in this thesis. The main platform hardware includes C8051MCU and CP2200Ethernet controller, and the platform software provides data acquisition, wireless data transmission, cable data transmission and some other functionalities. The platform makes a feature of providing two methods to transmit data. In locations where cabling is difficult, it provides remote data transmission through3G wireless network by connecting it to the mobile communication module; while in locations where wireless signal is weak, the platform uses the Ethernet controller to access the Internet and transmit data. Tests show that the platform works well, and it not only meets the requirements of data acquisition and transmission but also is general purpose and stable.Firstly, the development background of the platform and relevant technologies are introduced in this thesis. Then, the overall platform architecture is given in system design, and the system hardware and software are divided according to function into modules respectively. The hardware implementation and software implementation are given next. In hardware implementation, the schematic diagram of each hardware module is presented, and the driver for some specific hardware module is also given. In software implementation, detailed implementation and key technologies are described, including AT command programming and the simplification to the TCP/IP protocol stack. Then, the platform test process is conducted. Finally, the conclusion of this thesis and the outlook are given for further study.