u-blox NEO-M8U Untethered Dead Reckoning (UDR) Module

u-blox NEO-M8U Untethered Dead Reckoning (UDR) Module uses UDR technology to provide continuous navigation without requiring vehicle speed information. This module provides leading performance and continuous navigation even with poor GNSS signal conditions. The UDR technology provides the benefits of dead reckoning to installations that were previously restricted to using GNSS. This UDR technology also helps in significantly reducing the cost of installation for after-market dead reckoning applications. The NEO-M8U UDR module offers an onboard accelerometer and gyroscope sensors that help in rapid product development with reliable and consistent performance. This module uses GNSS chips qualified according to AEC-Q100.

Features

  • UDR technology provides continuous navigation without requiring speed information from the vehicle
  • Useful positioning performance available during complete signal loss
  • Positioning starts as soon as power is applied to the module
  • Can be installed in any position within the vehicle without configuration
  • Onboard accelerometer and gyroscope sensors
  • GNSS receiver for Galileo / GPS / GLONASS / BeiDou / QZSS
  • High sensitivity and fast GNSS signal acquisition and tracking
  • UART, USB, DDC (I2C-compliant), and SPI interface options
  • GNSS chips qualified according to AEC-Q100

Specifications

  • 0.25Hz to 10MHz frequency of time pulse signal
  • 0.5m/s velocity accuracy
  • 1° heading accuracy
  • <60s signal loss position error during GNSS loss
  • 30Hz maximum navigation update rate, high navigation rate output
  • <10ms navigation latency
  • 100Hz maximum sensor measurement output rate

Block Diagram

Block Diagram - u-blox NEO-M8U Untethered Dead Reckoning (UDR) Module
Publicado: 2020-11-27 | Actualizado: 2025-01-07