u-blox’ patented GPS Capture & Process technology enables mobile products to instantly capture a location using just a few millijoules of power. This is especially attractive for applications such as photo geotagging for cameras and camera accessories where users just want to point and shoot, and not waste precious time and battery power waiting for a conventional GPS position fix. The concept can easily be extended to ultra-low power position loggers that can record position data for months without recharging.
How it works In contrast to real-time GPS receivers which can take an unacceptably long time to establish a position fix, GPS Capture & Process captures location data in a fraction of a second. It achieves this by separating the GPS signal capture and subsequent processing into two distinct steps:
Capture: the raw output of an embedded GPS front-end (ex. u-blox' UBX-G0011) is digitally captured and stored locally, for example in a camera’s memory each time a photo is taken.
Process: when uploading photos for storage, u-Blox PC or Mac software also uploads the raw capture data and timestamp associated with each photo. With the help of u-blox’ online satellite positional data service, the raw data is quickly converted into a position fix.
The benefits to camera and logger manufacturers are clear:
Ultra-fast location capture: GPS signal data is captured on-demand in less than 200 ms – no waiting for acquisition of satellite orbital data necessary. Point and shoot performance!
Extremely low power solution: the GPS radio is on for a small fraction of a second per capture resulting in a negligible impact on battery life.
Fast time-to-market: complete end-to-end, globally available and reliable online geotagging and reverse geocoding service is available now.
Fast PC processing: geotagging and reverse-geocoding software and online service is optimized for Windows (XP, Vista and 7) and Mac and can typically compute a position fix from a capture in 0.4s per photo.
Available geotagging products based on our breakthrough “Capture & Process” technology:
YUMA: geotagging software and service enables the design of low-power fast-capture devices such as geotagging photographic or video equipment, GPS loggers and vehicle black boxes.
UBX-G0011: RF Front-end IC dedicated to Capture & Process
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