Design of Data Acquisition System Based on LPC2368 and PoE+ Technology

摘要

In order to overcome the cumbersome connection in the traditional data acquisition system and the additional design of the power supply system, this paper proposes and designs a large-scale distributed data acquisition and power supply system based on LPC2368 and POE technology. The data processing subsystem of the system is based on LPC2368 as the core microprocessor; the chip supports a variety of serial protocol interfaces and is widely used in the development of IoT terminals; in view of the particularity of data transmission, this paper designs a stable and reliable communication handshake protocol between the host computer and the terminal; the power subsystem adopts the PoE+ power supply mode. The network cable realizes the power supply to the data collection node. The advantage of this method is that it can realize functions such as remote power management and remote working state switch. After actual verification, the data acquisition system designed in this paper runs stably and can meet the actual engineering requirements of distributed data collection and complicated power supply requirements.