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3.7.1 Home energy management

Visualization service of consumed energy

The system is required to measure the consumed electric energy of each distributer, breakers the
generated energy by solar cells, and allow to calculate the fee of energy and to inform the cable
customer of the result. The current sensor is required to transmit measured data (consumed or
generated electric power) to the radio terminal device by ZigBee or wireless fidelity (Wi‐Fi) radio
chip. The residential gateway (RGW) is required to store the data temporarily (e.g., for one day) and
to upload the data to the collection server of sensor information.
The system is also required to present the cable customer with a regional power saving period, a
power saving announcement, and information on power balance from a municipal office or power
company. In other words, the system should not only display consumed/generated power. The
system can provide, optionally, recommend services for power and cost saving, in line with the
customer's power consumption pattern.
Furthermore, the system can optionally provide any additional support including regional ranking
information of power saving or additional incentive services. The system is required to be operated
on RGW at home and on a smart phone or tablet terminal, and in an outdoor environment through
the cable portal function. The system is required to send the information by e‐mail to the assigned
address.

Figure 78 – RGW and related entities for home ICT services

Source: Technical Report of the Focus Group on Smart Cable Television.
Solar power cell maintenance service
This is an information service to the cable customer on the maintenance of the solar power cell. The
system is required to report to the cable customer the necessity of surface cleaning, the existence
of malfunction through the monitoring of past power generation record and comparison with
regional standard generation value.

320 ITU‐T's Technical Reports and Specifications