Sagnik Majumder 

Raunaq Nandy Majumdar

Abstract – The researchers presently working on the Mobile Mapping System are facing difficulty in building their own Mobile Mapping System (MMS) because the Terrestrial Laser Scanner (TLS) and the Global Positioning System (GPS) differ from each manufacturer and cannot be time synchronised. As a result, it is impossible to geo-reference the acquired 3D scan with a high degree of accuracy. In this particular paper, RiVLib libraries have been used to extract time stamp information along with other scan attributes from the ‘.rxp’ files produced by the TLS. The GPS and the TLS were synchronised and a scan was initiated by pre-setting the scan parameters. The servers were set up on a computer with the TLS and the GPS finally synchronised. The computer was configured to act both, as a server and a client. As a client, it received accurate information from the GPS using the Network Time Protocol and passed it on to the TLS, referred to as the Dynamic Host Configuration when it takes upon the role of a server. Thus, the TLS indirectly received the time information from the GPS server and thus were time synchronised.