Abstract: In order to meet the real-time and reliability requirements of power parameter acquisition in substations, a high-speed data acquisition module based on embedded technology was proposed and designed. The module is based on the LPC2138 microprocessor and uses a combination of hardware synchronization and software error correction to realize the acquisition and processing of analog signals and switch signals on the power field. It can communicate with the main CPU module through the RS-485 bus to complete functions such as data storage and transmission, abnormal event detection, etc., and the module can also be maintained and upgraded through the local human-computer interaction interface.
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