Topcon GRS-1 -- mobile GIS mapping

Posted by GIS talk On Wednesday, May 13, 2009
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Topcon Positioning Systems' (TPS) released GRS-1, a modular, all-in-one, dual-constellation mapping system that incorporates high-accuracy capabilities into a single, small hand-held device. The GRS-1 has a high-speed processor, increased memory, built-in compass and an integrated digital camera and cell phone modem that provides flexibility for the user in the field.

The GRS-1 addresses mobile GIS applications as it incorporates an optional internal GSM or CDMA modem used to dial up to a reference station network for real-time correction data. An extra cell phone modem to make the connection is no longer required. Wireless connectivity via wireless LAN and Bluetooth technology enable a user to access a GIS server to download maps and other GIS data to use in the field.

The new receiver has sub-meter DGPS capability with an internal L1 antenna. One can add an external antenna at any time, to increase accuracy. Add a single frequency PG-A5 antenna and connect to a GNSS network via the internal cellular modem for sub-foot accuracy. Add a dual-frequency, PGA-1 external antenna and a high-accuracy software module and the receiver moves to dual-frequency, dual-constellation GNSS for GIS RTK (<5cm) accuracy. The GRS-1 is designed as a modular solution – the user can choose from a variety of accuracy levels for a myriad of projects. The GRS-1 uses the Windows Mobile operating system to run TopSURV-GIS, Topcon's field mapping software. Visit TopCon.


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