| 摘要 |
It is believed that the tenants or owners of multi-residential buildings without individual meters on their main resources typically consume more electricity , water and gas than those who pay a separate bill for their consumed resource s. This invention is related to the sub-metering of Electricity, Gas and Water consumption of each individual unit in multi-residential and commercial buildings. In this invention, the water meter, electricity meter, thermometer, signal booster, and the Data Receiver are each uniquely designed to be small, accurate, powerful, easy to install and user interface free. These newly redesigned apparatuses continuously communicate amongst each other through the use of Radio frequencies and Broad band over Power Line signals. The combinations o f these apparatus gather the sub-metered data and transmit it to a remote web based application in a secure and reliable environment via the Internet. The sub--metering of gas in this invention is based on the metered data of the building's and each unit's heating systems (hot water & air conditioning). This inv ention provides a powerful tool for owners and tenants of each unit to control the consumption of these three major resources inside their buildings/units and pay only for the cost of the resources they had consumed. The cost distribution based on the real and accurate data is at the heart of this invention and th e web application of this invention derives and calculates the monthly cost of eac h individual unit based on the live metered and measured data. The technical field of the mentioned application is Process and Control.</ SDOAB>
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