Remote upgrading method of STS prepayment meter

Abstract

The invention discloses a remote upgrading method of STS prepayment meter, including the master station which can send communication frames, consisting of an encrypted STS token code; the STS prepayment meter is provided with an authentication; the master station sends upgrading file information frames; the STS prepayment meter determines whether its software programs need to be upgraded; the master station sends upgrading file data frames at different times, following the checking frames every time after sending is completed; the STS prepayment meter stores and checks the upgrading files; and finally, the STS prepayment meter upgrades the software programs of potential upgrades. This method ensures the security of the remote upgrading method of STS prepayment meter by an authentication of the STS standard token code; and achieves the functions of triggering upgrades, sending / re-sending the files and terminating upgrades by extending mature standard protocols, meeting the growing demands of remote upgrades, reducing the upgrading costs and promoting the user experience, additionally, ensuring the stability of the upgrade function through a series of check and backup mechanism.

Description

Technical field [0001] The invention specifically relates to a remote upgrade method of an STS prepaid electric energy meter. Background technique [0002] With the development of national economy and technology and the improvement of people's living standards, automation technology has been widely used in people's daily life, bringing endless convenience to people's production and life. [0003] Prepaid watt-hour meters have received widespread attention once they are launched because of their advantages such as power pre-purchase, automatic power-off and switching, and remote data transmission, and they have been widely used in domestic and foreign power metering systems. STS Standard Transfer Specification (Standard Transfer Specification) is a set of safety message protocol, standardized as IEC62055-41 by the International Electrotechnical Commission in 2005. STS uses a 20-digit digital code as the information transmission medium. It can use keyboards, IC cards, network commun...

AI Technical Summary

Problems solved by technology

At present, there is research on the use of IC cards (CN103425505) to upgrade energy meters, but this method requires maintenance personnel to go to the site for maintenance, and using this method for energy meters without IC card functions will increase hardware costs

There is also a method of simply using the communication port to transmit the upgrade file (CN 104063254), but this method has a great risk. Once criminals obtain the detailed communication protocol for upgrade transmission, they can arbitrarily modify the software program of the electric energy meter. modification, which would have catastrophic consequences for the grid

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