The advantages of STS code prepaid meters in application
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STS code based prepaid meter refers to a prepaid meter that complies with the STS standard (IEC62055 international standard) and uses a 20 digit code as the transmission medium for purchasing electricity information; The STS standard is a standard for open prepaid systems, and the application of this technology requires authorization from the STS Association to ensure the security of power companies when using STS systems.
Conventional prepaid energy meters mainly refer to IC card type energy meters, including contact and non-contact types; Its working principle is that the power supply department uses the electricity sales system to encrypt the purchased electricity and write it into the user's IC card, and then the user recharges the electricity to the energy meter through the IC card, thereby realizing the transfer of user's electricity purchase information. At present, IC card energy meters mainly have the following disadvantages:
Compatibility issue: Different IC cards use different encryption methods, and different suppliers use different ICs, which makes it difficult to be compatible and has poor scalability.
Difficulty in purchasing electricity: Customers must purchase electricity at the designated business point of the power company, and the purchasing method is single.
Security issue: The battery is stored on the card through encryption, which can easily be damaged, lost, or attacked.
Each electricity meter requires the use of an IC card, which is costly and inconvenient to use
Compared to traditional IC card energy meters, STS energy meters have the advantages of easy operation, diverse transmission media, convenient transmission, high security, and compatibility with international standards; Electricity can be purchased through various methods such as SMS, online banking, and electricity sales points, and the third-party STS protocol and key are used to encrypt the electricity meter one-on-one, separating user information from electricity purchase information for greater security and reliability.
