BUILTDING THE SURVEYING CONTROL NETWORK OF BA XUYEN COMMUNE, SONG CONG CITY, THAI NGUYEN PROVINCE BY GPS TECHNOLOGY

Abstract

The grid control system of Ba Xuyen commune was built using GPS technology with a total of 80 points including: 75 newly established points and 05 original points (092538, 092543, SC-10, SC-16, SC-24) arranged with triangle shape. The results of handling and calculating the adjustment to meet the technical requirements according to current regulations: The maximum error of the central position of the position: (ĐV1-74) = 0.009 m; The greatest medium edge relative error (DV1-18 --- ĐV1-19): mS/S = 1/26,290; The closed error is relative to the largest triangle: (DV1-25 - DV1-26 - ĐV1-27) = 1/11,665. Thus, the control network of Ba Xuyen commune is ensured with high quality, high accuracy, and density of guaranteed points for detailed measurement of cadastral maps of communes.