Introducing

Alpha

Alpha provides receiver antenna position with centimeter level accuracy, and sends it in NMEA format to your devices (smartphone, UAV, or robotic vehicle) over UART or Bluetooth in real time.

 

Wide Range of Applications
● Aerial Mapping
● UAV Precision Guidance
● Precision Machine Guidance
● GIS Data Collection
● Real-Time Kinematic or Post-Process Kinematic

 

Versatile  Communication Interface
● UART and USB for standard device interface
ArduPilot and Pixhawk plug compatible
● Bluetooth connection to Android Mobile Device

High Precision
● 1cm + 1ppm Position Accuracy
● Camera Synchronized RTK Position Stamp
(much higher accuracy than conventional time-stamp interpolation)

 

 

Multi-GNSS 
● Supporting GPS/GLONASS/QZSS
● Supporting GPS/BDS/QZSS

 

Working Scenarios

Application: Realtime RTK Positioning for UAV

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Precision Farming Spray Drone 

Centimeter-level Pass-to-Pass Accuracy, Year-to-Year Accuracy.


Alpha outputs centimeter-level accuracy position in NMEA format to autopilot over UART interface.

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PPK for Aerial Mapping

Centimeter-level accuracy UAV position and camera triggered positions are post-process reconstructed from recorded raw measurement data. No need of radio link for sending RTK base data to the RTK rover on UAV.

 

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Higher Accuracy Camera Synchronized RTK Position Stamp

At 50Km/hr UAV travels  278cm between two 5Hz RTK positions.  Unless UAV travels at constant speed in a straight line, time interpolated position will be less accurate even if the camera triggered time tag has microsecond resolution! Camera triggered RTK position stamp gives RTK position, offering better accuracy.

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Precision Machine Guidance

 

Centimeter-level Pass-to-Pass Accuracy, Year-to-Year Accuracy.

Alpha output centimeter-level accuracy position in NMEA format to autopilot over UART interface.

Application: GIS Data Collection

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RTK Position Accuracy for Your Android Phone

Providing centimeter-level rover position accuracy relative to RTK base on your device running geo-centric App such as ArcPad, Esri Collector, Survey 123, TerraGo, …etc. Alpha is designed for use with Internet-connected Android smartphones/tablets and Windows notebook computers.

 

Specifications

 

Mechanical

   
  Size: 74.5x 54 x 17 mm
  Weight: 40 g
  Operating Temp: -20 ~+65ºC

Connectivity

   
  Bluetooth: 2.1 EDR
  Interfaces: USB, UART, SD Card, PPS, Ext. Trigger

Positioning Accuracy

   
  Horizontal: 1 cm + 1 ppm

Electrical

   
  External Power Input: Micro USB 5V

GNSS

   
  Signals: L1 GPS/GLONASS/QZSS,
B1 BDS
  Tracking Channels: 28
  Update Rate: 1/2/4/5/8/10 Hz

Data

   
  Size: 16 GB
  Correction Input: RTCM3.x, SkyTraq RAW
  Solution Output: NMEA
  Logs: SkyTraq Binary RAW Data

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