Electric Meter Priority Control During Terminal Power Overload

The patent segments terminal devices into different priority levels (first priority, second priority, etc.) based on their importance. When power overload occurs, the system selectively shuts down devices according to their priority ranking, ensuring that high-priority essential devices remain operational while lower-priority non-essential devices are disconnected. This segmentation approach resolves the contradiction by maintaining reliability for critical devices while still reducing overall power consumption.

The patent applies local quality by treating different terminal devices differently based on their specific importance to the user. Instead of a uniform shutdown approach, the system assigns different priorities to different devices, allowing essential devices to maintain operation while non-essential devices are shut down. This differentiated treatment resolves the contradiction between reducing power consumption and maintaining operational reliability.

The patent implements preliminary action by pre-assigning priority levels to terminal devices before power overload occurs. The general meter device stores priority information for each terminal device in advance, so when overload is detected, the system can immediately execute selective shutdown based on pre-established priorities without complex real-time decision-making. This preliminary preparation reduces the complexity of the control logic during actual overload events.

The patent applies self-service by allowing terminal devices to be automatically controlled based on their pre-assigned priorities without requiring complex user intervention during overload events. The system autonomously determines which devices to shut down based on stored priority information, reducing the need for complex user interfaces and manual control logic while maintaining reliability for essential devices.