SCADA and RFI interference on RTK surveys

Hopson, Matthew (2009) SCADA and RFI interference on RTK surveys. [USQ Project] (Unpublished)

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Abstract

This thesis investigated interference between SCADA radio transmissions and RTK radio transmissions. The research primarily focused on the SCADA network controlled by State Water Corporation. Previous research conducted by USQ students has indicated the validity of interference to GNSS from outside RF (radio frequencies). Anecdotally, it has been observed that SCADA (Supervisory Control and Data Acquisition) has detrimentally affected RTK surveying when in the vicinity of such transmitters The objective of the study was to quantify the extent and severity of any such interference, and from this information, produce a map specific to State Water’s SCADA network showing all potential areas where RTK Surveying might be compromised by the SCADA network. The field survey examined 4 State Water operated SCADA sites at two different locations. A third site, minimally affected by RFI was used as a reference site. At each site a series of coordinated points was measured using conventional traversing techniques and static GNSS, thereby eliminating RF interference. Leica 500 and 1200 RTK receivers were used to measure the test points with the result being compared to the control coordinates. It was found that accuracy and precision of the RTK results was negatively affected when operated in the vicinity of SCADA and other RF interference. This dissertation will show the extent of the effect and comment upon potential ‘zone of influence’ that surrounds the SCADA sites tested


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Item Type: USQ Project
Refereed: No
Item Status: Live Archive
Depositing User: epEditor USQ
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Surveying and Land Information
Date Deposited: 19 Jul 2010 00:42
Last Modified: 19 Jul 2010 01:07
Uncontrolled Keywords: SCADA; RTK surveying: radio frequency interference
Fields of Research (FOR2008): 09 Engineering > 0909 Geomatic Engineering > 090903 Geospatial Information Systems
10 Technology > 1005 Communications Technologies > 100510 Wireless Communications
URI: http://eprints.usq.edu.au/id/eprint/8418

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