Multi-constellation GNSS module significantly increases battery life

February 18, 2014 // By Jean-Pierre Joosting
Based on MediaTek’s single chip SoC technology, the Jupiter SL871 multi-constellation GNSS module from Telit Wireless Solutions is targeted at battery-life sensitive GNSS applications.

The module is suitable for situations that do not require Dead Reckoning, TRAIM and support of communication ports like USB or CAN bus. The recently introduced companion SL869 V2 module provides these sophisticated features.

Featuring the low-power MT3333 core from Mediatek, the SL871 can track GPS + Galileo and GLONASS (or GPS + Galileo and CompassBeidou depend­ing on the SW onboard) constellations, while simultaneously pro­viding the positioning data through standard UART. It features an ultra-sensitive RF front-end that enables multi-GNSS indoor fix, fast fix and navigation in challenging outdoor scenarios such as dense urban areas.

The Jupiter SL871 also supports ephemeris file injection (A-GPS) as well as Satellite Based Augmentation System (SBAS) to increase position accuracy. Its onboard software engine is able to locally predict ephemeris three days in advance starting from ephemeris data broadcast by GNSS satellites received by the module and stored in the internal Flash memory. In addition, advanced power modes and AGPS help in finding the best balance between accu­racy and power consumption, significantly increasing the battery life.

When designing position-aware, connected devices, developers can benefit significantly from the seamless integration between Telit’s cellular modules and the Jupiter SL871. Bundling these cellular and positioning modules significantly reduces development complexity without adding costs. Multi-GNSS modules applied together with the company’s eCall / ERA-GLONASS compliant cellular modules can, for example, deliver ready-to-use emergency automotive tracking solutions for the European and Russian markets.

“The Jupiter SL871 was designed to help developers looking for a quick and painless design-in experience creating geo-location aware products, particularly battery-powered ones,” said Taneli Tuurnala, Vice President and Head of GNSS Division at Telit Wireless Solutions.

www.telit.com

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