Development of a low-power switching signal acquisition device

This paper introduces an ultra-low-power 32-bit microcontroller and develops a 16-channel switching volume acquisition local device as its main control chip. The device is a programmable logic controller switching volume acquisition device, which adopts optoelectronic isolation technology to convert the switching volume signals of the on-site equipment into high and low level digital signals that can be recognized by the system. The switching volume acquisition device can be widely used in water supply and drainage pipe network, water conservancy hub, reservoir, irrigation district and other switching volume monitoring water conservancy projects.