Landis+Gyr Enermet Utilizes Nordic's Proprietary 2.4 GHz Transceivers
The Enermet E120Gi GPRS residential utility meter features an electronic electricity meter and an integrated GPRS communication module (including internal GSM antenna) with TCP/IP comms. The meter offers several ways to read, manage and control energy information while being easy to install and set-up.
The meter's versatile registers and logs record metering data and events, including configuration, voltage levels, and realtime supply status changes for enhanced customer service and statistics. The Enermet E120Gi not only gathers electricity-metering information; its S0 inputs can also be used to gather data from other sources, including gas, water or district heating meters.
Operating in the international 2.4 GHz ISM band, the nRF24L01 transceivers enable the E120Gi (with the addition of an external antenna) to form an automated wireless residential local metering network with a range of up to 50 meters between it and up to 48 sister E120i meters.
The nRF24L01 transceivers provide the E120Gi and E120i meters with a robust wireless link, virtually immune to interference from other 2.4 GHz technologies such as Wireless Local Area Networks (WLANs) and Personal Area Networks (PANs) now increasingly common in busy domestic environments.
The E120Gi acts as a communication gateway for its sister E120i meters, sending metering data from all connected meters via GPRS technology to a remote supervisory centre (in areas with sufficient GSM coverage). The combination is a cost-effective solution providing point-to-point communication advantages in point-to-multipoint locations.
The E120Gi is expected to be introduced to the market in the second quarter of 2007.
"Nordic's industry-proven 2.4 GHz transceivers enabled Landis+Gyr Enermet to implement a very cost effective local wireless network," says Antti Aumo, Vice President Marketing, at Landis+Gyr Enermet. "The network is reliable and immune from interference offering energy providers and domestic end users an easy-to-install solution without the complexity or cost of tens or even hundreds of meters of wiring."
"Automated wireless utility metering is a win-win for both the energy provider and the end user," comments Geir Langeland, the Director of Sales and Marketing at Nordic Semiconductor. "The provider saves on the cost and inaccuracy of manually collecting meter data, while the end user gets up-to-date, accurate consumption information to help them with budgeting."
SOURCE: Nordic Semiconductor ASA