1. NOTE: To change the image on this slide, select the picture and delete it. Then click the Pictures icon in the placeholder to insert your own image. “Smartphones, Tablets, and GPS Accuracy” Alia Amer Tyler Skluzacek

2. The Roadmap GIS in the workplace How accurate can we get? Interesting technological ideas

3. GIS in the Workplace Businesses collect GIS data using GPS Cellular-enabled smartphones and tablets Qualcomm, Broadcom, and CSR GPS-chipsets Emphasis on power consumption – NOT ACCURACY

4. How Accurate can we get? Given open-sky situation, 90% of all positions collected within 3m Given Canopy situation, considerably worse Due to multi-path interference Main path Second Path

5. Interesting Technological Ideas Chip-sets support Global Navigation Satellite System ( GNSS ) External GPS receivers that increase accuracy 99% accurate within 1m! “Collector for ArcGIS” app for non-technical people How accurate is emergency location services?

6. Accuracy Source: Precise Geodetic Infrastructure; National Research Council http://www.nap.edu/openbook/12954/ xhtml/images/p2001be15g38001.jpg http://www.nap.edu/openbook/12954/ xhtml/images/p2001be15g38001.jpg

7. Spatial Accuracy and CSCI 5715 Lab 1 – Creating Google Map Markers with data from smartphone Businesses answer the same types of questions: How do we define accuracy? How accurate can we get? Poor accuracy can skew efficacy of the OGIS operations “Touch” may no longer touch.