装ups的另外一个目的就是为了保证树莓派的存储卡不会因为意外断电而出现问题。其实要解决这个问题个人觉得也简单，毕竟也是个linux啊。可以基于nut实现。
The primary goal of the Network UPS Tools (NUT) project is to provide support for Power Devices, such as Uninterruptible Power Supplies, Power Distribution Units, Automatic Transfer Switches, Power Supply Units and Solar Controllers. NUT provides a common protocol and set of tools to monitor and manage such devices, and to consistently name equivalent features and data points, across a vast range of vendor-specific protocols and connection media types.
NUT provides many control and monitoring features, with a uniform control and management interface. If you are just getting acquainted with NUT, that page also explains the technical design and some possible set-ups.
More than 170 different manufacturers, and several thousands of models are compatible.
https://networkupstools.org/index.html
