Patent ID: 8701209
Filing Date: 2014-04-15
Classification: G06F,H04L

Abstract:
1. A measurement data management method for managing measurement data using a terminal device, a measurement data management device, an authentication device, and a time authentication authority, the measurement data including a measured value acquired through measurement processing executed by a meter, the terminal device being connected to the meter, the measurement data management device being communicably connected to the terminal device and managing the measurement data, the authentication device authenticating the measurement data managed by the measurement data management device, and the time authentication authority authenticating time, wherein the terminal device executes: the measurement data management device executes: the authentication device executes: the time authentication authority executes: wherein the terminal device further executes a determination step of acquiring the measured value from the meter multiple times and determining whether or not the multiple measured values thus acquired match, and executes the electronic signature step when it has been determined that the multiple measured values match in the determination step.