K482 OEM Board


GPS/BDS/GLONASS/GALILEO 

Multi-frequency High-precision 

RTK and Heading Board

  • Features
  • Specifications
  • Aplication

■ New-generation Nebulas-II SoC chip

The K482 works with Sunnav’s new-generation all-system multi-core high-precision GNSS SoC -- Nebulas-II. The chip supports 432 channels, two 600MHz ARM processors and dedicated high-speed floating-point coprocessors, achieving powerful satellite signal processing.

■ “UGypsophila”RTK processing technology
The K482 adopts Sunnav’s new-generation “UGypsophila” RTK processing technology and takes advantage of the high-performance data sharing capability and super-simplified operating system within the NebulasII GNSS SoC. It performs sufficient optimization on the multi-dimensional RTK matrix pipeline computation,resulting in 80%+ higher RTK processing capability.

■ Adaptive recognition of RTCM

The K482 performs pattern matching recognition and correction algorithm with the internally-abstracted RTCM protocol template to fully implement the differential RTCM input adaptation function. Upon the RTCM data access, it judges quickly the input COM port and RTCM3.2/3.0/2.3 format, without the need to specify the type of differential data, thus dramatically simplifying user operations.

■ On-board MEMS integrated navigation

The K482 integrates the on-board MEMS chip and U-Fusion integrated navigation algorithm, resulting in optimized continuity and reliability of heading/positioning output in such complex environments as buildings, tunnels and overpasses. Inputs of odometer and external higher-performance inertial components are supported*.


Application Field  


 Precision surveying
 Ground-based augmentation systems(GBAS)
 Deformation monitoring
 Precison Agriculture
 Mechanical control
……


Basic Features  


 46×71mm,compact classical size
 Supporting GPSL1/L2+BDS B1/B2+GLONASS L1/ L2+GALILEO E1/E5b
 Adaptive recognition of RTCM input data format
 Dual antenna, supporting simultaneous output of heading and positioning,
 <5s RTK and heading initialization time
 20Hz data output rate
 On-board MEMS integrated navigation



Performance Specifications

Channel

432 channels, bases on
Nebulas-II UC4C0 1 chip

Frequency

- BDS:B1/B2
- GPS:L1/L2
- GLONASS:L1/L2
- GALILEO:E1/E5b
- QZSS:L1/L5
- SBAS:L1

DGPS(RMS)

Horizontal:0.4m
Vertical:0.8m

RTK(RMS)

Horizontal: 1cm + 1ppm
Vertical: 1.5cm + 1ppm

Time Accuracy (RMS):20ns

Single Point:Horizontal: 1.5m

Position (RMS):Vertical: 2.5m

Heading Accuracy:0.2degree @1m baseline

Velocity Accuracy (RMS):0.03m/s

Reacquisition:<1s

Correction:RTCM 2.3/3.0/3.2

Data Output:NMEA-0183,Unicore

Heading and RTK Update Rate:20Hz

Inertial Navigation Accuracy:<5% x driving distance (No GNSS signal, within 30s)

Electrical Specifications

Voltage:3.3VDC +5%/–3%

LNA:4.75~5.10V, 0~100 mA

Ripple Voltage:100mV p-p(max)

Power Consumption:2.3W (Typical)

Physical Specifications

Dimensions:46×71×4mm

Weight:21g

I/O Connectors:2x14 pin

Antenna Input:2xMMCX

Operating:-40°C~+85°C

Storage:-55°C~+95°C

Humidity:95% non-condensing

Shock:GJB150.18-2009,MIL-STD-810

Vibration:GJB150.16-2009,MIL-STD-810

Functional Ports

Voltage:3x UART(LV-TTL), 1xI2C, 1x SPI (LV-TTL)

LNA:1xEvent

Ripple Voltage:1x1PPS(LV-TTL)

Power Consumption:1xLAN





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