A Data Information Exchange Method Based on Security Check Read Method

This paper analyzes the shortcomings of the traditional method of data information exchange between electric meter, electric card and main station, and proposes a new method of data information exchange between electric meter, electric card and main station based on security check read mode and symmetric encryption technology. The method includes: the meter executes the “security check read command”, and the master station completes the execution of the corresponding commands according to the read result, such as file writing and recharge, so as to realize the business of parameter presetting, data copy, recharge and deduction. This method can ensure the synchronization of data information among the main station, electric meter and electric card, and also ensure the security and integrity of the transmitted data.