| 摘要 |
A system for monitoring electrical appliances presenting an electric load, where a monitoring device SA is connected between a source of electric energy PC and the electrical load of an appliance HA the device SA comprises: a means for measuring the entity of the power or electric current absorbed by the appliance SA, b means for comparing the measured absorption of power or electric current with reference values, stored in the device itself, cmeans for generating, in function of the said comparison, representative information of the state of operation of the appliance HA. According to the invention, the said reference values are the result of processing performed by a remote centre CR and SE, on the basis of readings taken by the same measuring means of the monitoring device SA, The remote centre CR and SE, after having obtained the said reference values, communicates them to the device SA, so that that they can be recorded therein. |
