LOCOSYS Automotive Dead Reckoning product is the perfect solution for automotive application.

Dead Reckoning Modules

Dead Reckoning Technology

Currently, vehicles are usually positioned using the Global Positioning System (GPS/GNSS)
However, in practical applications, GNSS satellite signals are not completely reliable under high buildings, overpasses, basement parking lots, tunnels, dense trees and other sheltered environment which can reduce the positioning accuracy. Therefore, if you want to improve the accuracy of navigation, Dead Reckoning navigation becomes necessary.

Dead Reckoning Combining with GNSS

The perfect combination of Dead Reckoning and GNSS is a perfect match for automotive navigation. Combining with GNSS signal, gyro steering information and CAN-Bus speed / pulse estimation, seamless real-time accurate positioning is achieved.

Furthermore, the application of Dead Reckoning technology by LOCOSYS is good news to the car owners. Because even in the process of driving when GNSS signal is lost, they can accurately navigate and locate.


For more info, contact Sales



  • Support GPS, BeiDou or GLONASS, GALILEO and QZSS L1
  • Capable of SBAS (WAAS, EGNOS, MSAS) Precise navigation, positioning
  • Built-in LOCOSYS Dead Reckoning (ADR/UDR) both technology software
  • Built-in MEMS sensor (3-axis Gyroscope and 3-axis Accelerometer)
  • Support MEMS raw data output, High update rate (up to 100Hz)
  • Support Odometer (wheel-tick pulse) input
  • Support sensors data feed through the UART port
  • Support ADR/UDR Automatic fast learning calibration
  • Low-power consumption and compact size
  • Fast TTFF at low signal level
  • Built-in pressure sensor (option)
  • Automatic configuration of wheel tick/speed input
  • Small form factor 16 x 12.2 x 2.4 mm
  • SMD type, RoHS compliant
  • LOCOSYS IATF 16949 quality control


  • Satellite System: GPS + (GLONASS, GALILEO), or BEIDOU, and QZSS
  • Interface: UART / CAN BUS / USB
  • Input Voltage: 3.0V – 4.3V
  • Power (mA): TBD
  • VB (uA): TBD
  • Operating Temp (°C): -40 ~ 85
  • Dimension (mm): 16 x 12.2 x 2.4 mm


  • Autonomous Vehicle (AVN/T-BOX/HUD)
  • Internet of Vehicles
  • Unmanned Aerial Vehicles
  • Precision Agriculture
  • AGV Robotics
  • V2V / V2X Station
  • Structural / Land Monitoring
  • Offshore / Marine Applications


Click here to visit the LOCOSYS ADR products webpage

Click here to visit the LOCOSYS UDR products webpage