ELECTRONIC ELECTRICITY METER WITH INTEGRATED DIGITAL-CERTIFICATION MECHANISM FOR SECURE COMMUNICATION

摘要

Electronic electricity meter with integrated digital-certification mechanism for secure communication, comprising current sensors 1(a), voltage sensors (b), electronic circuit (c) for conditioning the current signals and voltage signals in the electrical levels required by the processing unit (d), processing unit (d) able to continuously sample the current signals and voltage signals provided by the circuit (c) and that reflect, using a known ratio, the real value of the current and voltage delivered to the meter connection terminals, the processing unit (d) calculates the active and passive through energy and determines the energy values to be counted, and a communication unit (e), linked to the processing unit (d), which uses a digital data protocol and a physical interface to communicate with the world outside the meter, and a processing unit with digital certification functions (f) located between the processing unit (d) and the communication unit (e), in which the processing unit with digital verification functions (UPFCD) is intended to encrypt and sign all of the data made available, using the data protocol of the communication unit (e), to the outside world, such that the electronic relationship with the meter in terms of data communication is governed by the use of the digital certification technique natively and non-separably.