A New Watt-hour Meter White Box Test Method Based on Reading and Writing EEPROM

Aiming at the problem that Watt-hour meter black box testing method cannot achieve branch path traversal for the Watt-hour meter software,and that the EEPROM data error tolerance evaluation of the Watt-hour meter cannot be presented. a new type of Watt-hour meter white-box testing method based on EEPROM read and write has been proposed in this paper,considering the fact that Watt-hour meter's running parameters are preserved in Watt-hour meter data storage unit. The new test method will avoid the branches path missing in the black box test effectively through the changing of EEPROM parameters to achieve the whole coverage for Watt-hour meter software branch path traversal. The Watt-hour meter software can be test automatically by the white-box test method by the construction and integration of the new test platform. The new method proposed in this paper will provide a certain reference value so as to improve the reliability and fault tolerance of the Watt-hour meter.