Abstract: Techniques for transmitting global navigation satellite system (GNSS) correction data to a rover. GNSS signals are wirelessly received by a base station from one or more GNSS satellites. GNSS correction data is generated by the base station based on the GNSS signals. A beacon frame is formed by the base station to include a frame header, a frame body, and a frame check sequence (FCS). The frame body is formed to include the GNSS correction data. The beacon frame is wirelessly transmitted by the base station for receipt by the rover. The rover wirelessly receives the beacon frame. The GNSS correction data is extracted by the rover from the beacon frame. A geospatial position of the rover is calculated based on the GNSS correction data.

Abstract: Techniques for transmitting global navigation satellite system (GNSS) correction data to a rover. GNSS signals are wirelessly received by a base station from one or more GNSS satellites. GNSS correction data is generated by the base station based on the GNSS signals. A beacon frame is formed by the base station to include a frame header, a frame body, and a frame check sequence (FCS). The frame body is formed to include the GNSS correction data. The beacon frame is wirelessly transmitted by the base station for receipt by the rover. The rover wirelessly receives the beacon frame. The GNSS correction data is extracted by the rover from the beacon frame. A geospatial position of the rover is calculated based on the GNSS correction data.

Abstract: In a method for determining a tilt angle of a crane, a portion of the crane is rotated about a pivot point. A Global Navigation Satellite System (GNSS) receiver antenna is disposed on the portion of said crane. At least three locations of the GNSS receiver antenna are determined by a GNSS receiver in a geo-referenced coordinate system during the rotating. A tilt angle of the crane based on the at least three locations of said GNSS receiver antenna is determined by a processor.

Abstract: A radio frequency identification (RFID) tower crane load locator and sway indicator includes: a plurality of RFID tags at different locations on or around the crane; at least two RFID readers at different locations on the crane; a navigation satellite system (NSS) position receiver; and a load information interface. The RFID readers comprise a range determiner to provide range measurements between each of the RFID readers and each of the RFID tags. The sway determiner is coupled with a hook block of the crane. The NSS position receiver is coupled with the crane and comprises an antenna fixedly coupled with approximately the front of a jib of the crane. The load information interface combines information from range measurements, the sway determiner and the NSS position receiver to generate location and sway information of the load with respect to the crane and provide this information in a user accessible format.

Abstract: A radio frequency identification (RFID) tower crane load locator and sway indicator includes: a plurality of RFID tags at different locations on or around the crane; at least two RFID readers at different locations on the crane; a navigation satellite system (NSS) position receiver; and a load information interface. The RFID readers comprise a range determiner to provide range measurements between each of the RFID readers and each of the RFID tags. The sway determiner is coupled with a hook block of the crane. The NSS position receiver is coupled with the crane and comprises an antenna fixedly coupled with approximately the front of a jib of the crane. The load information interface combines information from range measurements, the sway determiner and the NSS position receiver to generate location and sway information of the load with respect to the crane and provide this information in a user accessible format.

Abstract: In a method for determining a tilt angle of a crane, a portion of the crane is rotated about a pivot point. A Global Navigation Satellite System (GNSS) receiver antenna is disposed on the portion of said crane. At least three locations of the GNSS receiver antenna are determined by a GNSS receiver in a geo-referenced coordinate system during the rotating. A tilt angle of the crane based on the at least three locations of said GNSS receiver antenna is determined by a processor.