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  2. Automatic meter reading - Wikipedia

    en.wikipedia.org/wiki/Automatic_meter_reading

    The meter communicates to its collection point using 900 MHz mesh network topology. Automatic meter reading (AMR) is the technology of automatically collecting consumption, diagnostic, and status data from water meter or energy metering devices (gas, electric) and transferring that data to a central database for billing, troubleshooting, and ...

  3. Smart meter - Wikipedia

    en.wikipedia.org/wiki/Smart_meter

    The term smart meter often refers to an electricity meter, but it also may mean a device measuring natural gas, water or district heating consumption. [1] [2] More generally, a smart meter is an electronic device that records information such as consumption of electric energy, voltage levels, current, and power factor.

  4. Smart city - Wikipedia

    en.wikipedia.org/wiki/Smart_city

    Wireless meters and devices transmit information at the point in time. A number of homes being provided with smart energy meters to become aware of energy consumption and reduce energy usage. Solar power garbage compactors , car recharging stations and energy saving lamps .

  5. Water metering - Wikipedia

    en.wikipedia.org/wiki/Water_metering

    A typical residential water meter. Water metering is the practice of measuring water use. Water meters measure the volume of water used by residential and commercial building units that are supplied with water by a public water supply system. They are also used to determine flow through a particular portion of the system.

  6. Optical wireless communications - Wikipedia

    en.wikipedia.org/wiki/Optical_Wireless...

    VLC systems take advantage of light-emitting diodes (LEDs) which can be pulsed at very high speeds without a noticeable effect on the lighting output and human eye. VLC can be possibly used in a wide range of applications including wireless local area networks, wireless personal area networks and vehicular networks, among others. [1]

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