Research on the Key Technology of Real- Time Web Inspection System Based on Inverse RTD
Xu Ding · Geomatics & Spatial Information Technology · 2014
The traditional GPS RTD applied in city inspection has shortage that inspection information can't be returned the control center real- time,data can't be shared and inspection trajectory can't be monitored,so this paper proposes the technology of inverse RTD based on CORS. This technology add the Mid- Server between CORS system and PDA,Mid- Server receives differential information and gets the result of differential calculation,then the result should be returned to PDA; The PDA without differential function should increase bidirectional communication module to receive the result returned from Mid- Server and upload the attribute information of inspection points,indoor workers can get information real- time through web platform. Testing results indicates that this technology has the advantage that information can exchange in real- time and non- differential PDA is cheaper than traditional PDA,so it's application can avoid the shortage of traditional technology in city inspection.