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Global navigation satellite system

Navigation in urban canyons

The global navigation satellite system Jupiter SL869 series from Telit (Italy) provides multi-constellation coverage, which allows navigation even in environments such as urban canyons.

CAN interfaces are provided (Photo: Telit)

THE PRODUCT OFFERS FEATURES LIKE MULTI-CONSTELLATION, dead reckoning, and timing and is therefore a suitable solution for positioning applications (positional accuracy is 1,5 m). The dead reckoning support allows integration with MEMS using I2C and a CAN network. The series, which consists of SL869, SL869-T, and SL986-DR, provides default configurations to meet specific market needs. The SL869 is the basic model, the SL869-T is a timing module that provides a timing performance with a stable synchronized 1 PPS output and Traim (Time-Receiver Autonomous Integrity Monitor) integrity monitoring. The S869-DR is a DR module, whose receiver provides the user with estimates of the vehicle’s position and velocity when GNSS information is lost or not available. It does so by combining speed and heading sensor data into the solution. The result helps with the navigation in harsh urban canyon environments.

The series operating temperature range is -40 °C to +85 °C. The product, which comes in a 16 mm x 12,3 mm x 2,4 mm package, is based on the STM Teseo II core and has a supply voltage range from 3 VDC to 3,6 VDC. It is also equipped with interfaces like CAN, UART, I2C and USB. The series supports AGPS (Assisted Global Positioning System) by means of extended ephemeris injection as well as extended ephemeris on-board generation for fastest TTFF.

The xL869 is Telit’s so-called GNSS Unified Form Factor series, which allows customers to select between different GNSS technologies. Modules in this family are offered in a 16 mm x 12,2 mm, 24-pad LCC package supporting GPS, Glonass, Galileo, and QZSS constellations. Typical applications include fleet management systems, European GPS-assisted road tolling systems, cellular base stations, in-car navigation systems, automotive telematics systems, and GPS-based personal sports training monitors.

Publish date
2014-05-28
Company

Telit
STM

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