Recently, southern power grid company key project "energy metering security key technology research and application of cost control system" by scientific and technological achievements appraisal, the overall achievements reached the international advanced level;Among them, the design and implementation of the safety fee control key management mechanism, and the automatic detection technology of intelligent electric meters reached the international leading level.

The reliability of electric power measurement is one of the important indicators of the quality management of electric power, and is also an important indicator for the continuous reliable power supply of the power supply enterprises.In recent years, the southern power grid company has been engaged in electric energy metering automation security fee charged operation support system research work, need high reliability, high security chip products for its "escort".

The project lasted 5 years study, is proposed based on the dense algorithm of electric energy metering safety cost control system in the domain password solution, build a comprehensive coverage of southern power grid company's host - measuring acquisition terminal - smart meters - user card "of the multilayer multistage key system and certification system, multiple security interaction to solve the network marketing business data of measurement and metering device safety problems.

The project is authorized to authorize 20 patents and 5 items for the software.Project research results has been applied to the southern power grid comprehensive promotion, the deployment of key management system 8 sets, 1057 sets of testing software, smart meter measuring security chip 20 million, 216, measuring the password.