System and method for accuracy certification of geographical locations on a land tract

摘要

The current invention is a system and method for certifying GPS locations on a land tract using consumer devices having standard GPS chipsets. The system takes a plurality of readings from at least four satellites into one or more sample sets. A smoothing function is used to remove outlier GPS values and a circular plot of spatial positions made. A center location of the plot is then calculated and recorded. The process is repeated and then compared to the first center calculation. If the difference is less than a predetermined certification value, the position can be certified as accurate. Various features in a land tract can be certified to the predetermined accuracy. For example, using the process to certify or correct errors in a shapefile representing the land tract, physical markers placed on the land tract, or environmental features of a land tract to lessen environmental impact during development.

主权项

1. A system for certifying a GPS location comprising a portable electronic computing device having a processor, a memory, and a GPS receiver in electrical communication with said processor; wherein said GPS receiver is configured to receive said data from at least four GPS satellites to create a first sample set of positions and a second sample set of positions, wherein each of said first and second sample sets of positions is stored in said memory; wherein said processor is configured to process said first and said second sample sets of positions to create a first center location position and a second center location position, respectively, for said device, and to process said first and said second center location positions to certify said GPS location, said GPS location is certified when said first and second center location positions are processed to determine an average distance for a plurality of segments between each of said positions stored in said memory and said average distance is less than a predetermined certification value.