AUTOMATIC METERING LOGOUT METHOD FOR PRE-PAID ELECTRICITY VENDING SYSTEM

摘要

An automatic metering logout method for a pre-paid electricity vending system includes: a user sends a metering logout request information table to a terminal server via a user interface; the terminal server receives the metering logout request information table to query a user/metering profile table and waits for a confirmation information table or an error information table according to the query result feedback; a user interface device receives the confirmation information table and then sends same to the terminal server; the terminal server receives the confirmation information table and then generates and stores a logout request record, and then feeds back a DM-TOKEN information table to the user; the metering reads the DM-TOKEN information table via the terminal server and then feeds back an RC-TOKEN information table; the user interface reads the RC-TOKEN information table, controls a metering relay to trip and sends an MC-TOKEN information table to the terminal server; and the terminal server records the MC-TOKEN information table to confirm whether there is user balance and realizes metering logout. The method realizes automatic metering logout and ensures secure data transmission and function implementation integrity.