Aiming at the problems that the traditional remote update mode of watt-hour meter software fails to update when the measurement point file does not conform to the actual situation

firstly

the problems of the traditional centralized software update mode is analyzed in the aspects of archives

channel use and storage. And then

a software update mode of watt-hour meter based on distributed multicast mode is proposed

and the specific scheme of software update for each process based on this mode is given. Then the key problems in the process of updating such as the copy and rollback of the original program

and the protection of the integrity and correctness of the update program

are studied. Finally

the feasibility of the proposed upgrade mode is verified by experiments.