Interconnecting device of wireless- transmitting data by using Code Division Multiple Access circuit mode for land surveying using Real Time Kinematic Global Positioning System

摘要

The RTK system includes a reference station consisting of a GPS receiver unit, an RTK module unit, and a wireless communication terminal, a wireless communication network, and a mobile station consisting of a GPS receiver unit, an RTK module unit, and a wireless communication terminal.;The RTK module unit replaces the role of the modem unit of the conventional GPS receiver, and performs data transmission and reception between the reference station GPS receiver and the mobile station GPS receiver.;The mobile station interworking device selects the reference station closest to the current position, attempts to connect, and prepares to receive data when the connection is established. The connected reference station-side wireless data interlocking device continuously transmits CMR2 data and calls if disconnected. Hang up and reconnect.