2G module with A-GPS receiver
28 September 2011
Telecoms, Datacoms, Wireless, IoT
Telit Wireless Solutions has introduced the GE864-GPS, a quad band GSM/GPRS M2M module with embedded GPS receiver in a compact BGA form factor. The combined solution is especially suited for highly integrated positioning solutions in automotive, tracking or security applications requiring 2G network connectivity in a very small footprint.
The device shares the identical form factor and is pin-to-pin compatible with Telit’s GE864 family, making it the smallest GSM/GPRS module in the market with full 48-channel A-GPS functionality, according to the manufacturer. It combines Telit’s proven GSM/GPRS core technology with the latest SiRFstarIV high-sensitivity, single-chip A-GPS receiver.
The new assisted GPS receiver features an optimised power management function which allows it to maintain hot start capability at minimal energy consumption, offering a position resolution accuracy of less than 2,5 m. Moreover, the GE864-GPS supports satellite based augmentation systems such as WAAS, EGNOS, MSAS and GAGAN.
With a dedicated power supply circuit, the GPS chipset can work independently from the GSM chipset and still operates when the cellular part is in power saving mode or switched off. This function is helpful for battery operated solutions that activate the communication function only upon triggering events such as location changes.
The GPS receiver is equipped with a Flash-based memory, so the firmware can be upgraded. The tiny ball-grid-array package (30 x 30 x 2,9 mm) allows the end application to have a very low profile and small overall dimensions. The addition of the embedded Python script interpreter makes for a cost effective and well equipped platform capable of becoming an integrated solution for a complete application. Additional features include jamming detection, integrated TCP/IP protocol stack, and Easy Scan.
All Telit modules support over-the-air firmware update by Premium FOTA Management. By embedding RedBend’s vCurrent agent, a proven technology powering hundreds of millions of cellular handsets worldwide, Telit is able to update its products by transmitting only a delta file, which represents the difference between one firmware version and another. The FOTA service is available for the GSM firmware and will be available in the future for the GPS firmware as well.
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