Research on Unified Hardware Platform of Power Switchgear Compatible with Multi-physical Quantity Access

In order to realize the intelligent monitoring of power switchgear, a lot of software and hardware need to be installed duo to the detailed monitoring classification, which restricts the development of equipment miniaturization and standardization. It is urgent to develop a unified hardware platform compatible with a variety of physical quantity monitoring. This paper constructs a multi-channel parallel acquisition channel and RTC clock through the "FPGA + ARM" architecture and develops a hardware platform with high data acquisition speed and time synchronization accuracy. The time synchronization accuracy of the system is 16 μs and performed steadily. The unified access of multi-physical quantities measurement and monitoring of power switchgear is realized for the first time, which provides strong technical support for the standardization development of the power switchgear monitoring system.