Smart utilities enable more efficient energy consumption and distribution and are the key for smart homes development. We propose an electronic device that will be integrated as an add-on to already installed conventional gas meters as a first stage of smart metering rollout. The electronic device will measure the gas consumption and it will be managed by the user’s or operator’s smartphone via NFC. For the gas flow measurement, the electronic device takes advantage of the rotation of a permanent magnet fixed in an index drum.
The design and implementation of autonomous wireless nodes for the Internet of Things (IoT) require paying exceptional attention to their sources of energy consumption in order to extend their battery lifetime. These nodes spend most of the time in standby mode and they only wake up to perform a quick defined task, usually sensing and measuring or transmitting information. In this demo, LEDs are used for Visible Light Communication (VLC). A low-cost, small-size and low-power consumption LED-based interface circuit connected to an I/O microcontroller pin is proposed and tested. Moreover, this circuit also operates as a wake-up mechanism, aiding to achieve longer standby time and thus lower energy consumption. Our experiments are shown in actual commercial applications developed for a European project. CCS CONCEPTS • Hardware → Sensors and actuators; Wireless devices; • Networks → Short-range networks; Mobile networks; Wireless access networks;
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