U-Blox collaboration brings positioning accuracy to Korea
December 12, 2018
Korean broadcast media company MBC, with assistance from Swiss wireless modules company U-Blox, has launched a compact L1 and L2 real-time kinematic (RTK) multi-band device.
The MBC MRP-2000 uses a U-Blox Zed-F9P high-precision GNSS module. This is said to be the first GNSS RTK receiver with wireless access to a GNSS correction service in a single box for the Korean market.
To achieve centimetre-level position accuracy, high precision GNSS receivers combine multi-band satellite signal reception and GNSS correction data. In addition to mitigating positioning errors incurred as the satellite signals cross the ionosphere, multi-band reception significantly speeds up the time it takes the receiver to determine its location.
The Zed-F9P process GNSS correction data, received via a wireless data connection, using integrated RTK algorithms. For uninterrupted centimetre-level accuracy, it requires constant data access over the air.
Weighing 50g, the compact and low power MRP-2000 provides centimetre-level positioning accuracy for a wide range of portable and mobile applications such as autonomous vehicles, drones and survey equipment. It comes with a subscription to MBC’s RTK correction service, delivered nationwide using digital media broadcasting (DMB) networks, with LTE fallback.
“By integrating our Zed-F9P, a mass market RTK receiver, with Korea’s low cost DMB connectivity channel to offer automotive and industrial applications access to a nationwide correction service, MBC was able to dramatically reduce the cost of ownership of centimetre-level positioning technology,” said KS Son, country manager for U-Blox in Korea.
The GNSS receiver in the MRP-2000 helps keep the cost, size and power consumption low. With multi-band RTK algorithms integrated on the chip, MBC was able to enable centimetre-level positioning with no additional hardware or third party RTK libraries, cutting the time to market.
“Collaborating with U-Blox helped us develop the MRP-2000, the first fully integrated positioning solution that can use RTK data from the DMB network as the primary source of location correction information, only switching to the LTE network in areas of poor DMB reception,” said Seung-Ho Lee, director of MBC’s spatial information business. “This gives the user an extremely high connectivity coverage delivering centimetre-level performance across the entire South Korea peninsula.”