Dead Reckoning GNSS GPS Receiver Mouse

Perfect Solution for Automotive Applications

Continuous Accurate Positioning for Car Navigation, Fleet Management, Navigation Systems for Emergency Vehicles, Bus Location Systems, Tracking Devices for Commercial Vehicles, etc.

Mulberry dead reckoning GPS receiver module consists of the Swiss ublox M8 series GNSS chip and a six-axis acceleration sensor.
It is a multiple-function communication module that has integrated the advanced online adaptive integrated navigation algorithm and GNSS location engine.
It provides real-time, high-precision vehicle location, speed measurement, and direction measurement information under the most challenging conditions (such as indoor, tunnel, underground garage, etc).
When the signal accuracy is reduced, or even satellite signals are lost in the GNSS system, without using the odometer information, our dead reckoning GPS receiver can locate and measure the vehicle accurately by using inertial navigation technology.

Our dead reckoning GPS receiver is a concurrent receiver module built-in with multiple positioning systems that support simultaneous reception of GPS, GLONASS, Galileo, Beidou, and QZSS L1 bands.
It has 33 tracking channels, 72 capture channels and 210 PRN channels, enable it to capture and track any multiple satellite signals.
Compared with a single GPS system, the multiple positioning systems (GPS&GLONASS& Galileo, Beidou &QZSS) of the DR GPS receiver makes a great increase in the number of visible and available satellites. At the same time, the first positioning time is highly reduced, even in a complex urban environment. It perfectly achieves higher positioning precision and accuracy.

Dead Reckoning GPS Receiver Key Features

Swiss Ublox M8 Engine

72 Channels

2.5m Positioning Accuracy

GPS, Glonass, Galileo, Beidou

-167 dBm Sensitivity

Six-axis Acceleration Sensor

High LNA

NMEA 0183, UBX, RTCM2.3

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Technical and Mechanical Specifications for the DR GPS Receiver

Technical Spec

Mechanical Spec

Technical Spec

Mechanical Spec

Performance Descriptions for the Dead Reckoning GPS Receiver

Gyroscopic Drift

High precision attitude heading information is obtained by eliminating gyro drift.

Acceleration Noise

Eliminate vibration acceleration and obtain high accurate velocity information.

zero-velocity Correct

Zero speed correction algorithm prevents navigation data drift.

Software Algorithm

Adaptive extended Calman filtering algorithm.

Intelligent Identification

Identify and isolate GNSS data with large errors.

Navigation Technology

Switch between integrated navigation and inertial navigation technology.

Independent to Odometer

High precision positioning by using inertial navigation.

Component Selection

High performance three axis gyroscope and three axis accelerometer.

Error Compensation

Complete quadrature error / temperature drift and other error compensation.

Preventing Pirate

Each product calibration code is inconsistent for preventing pirate.

Engineering Installation

No installation angle, convenient for users to install on board.

Sub-meter

Support RTCM2.3 protocol / sub-meter level navigation in complex environment.

Dead Reckoning GPS Receiver Connectors

USB, Micro USB, USB Type C, USB Type A
Micro-Fit 3.0, DB9 Male, PS2 6 Pin Male
Audio DC 2.5 / 3.5 (3 / 4 Pin Male)
Micro HDMI, 1.25x5Pin cable, Free Wire, etc.

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System Introduction

Satellite Navigation System

The satellite navigation system has the advantages of global application, all-weather extension, and high precision navigation. But it is vulnerable to environmental influences, such as trees, buildings, and so on. It results in the multi-path effect of positioning accuracy reduced or lost, especially in the indoor environment, such as tunnels where satellite navigation systems cannot be used. Even in an open environment, when the vehicle speed is very low, the satellite navigation system will also be unable to get precise azimuth information (heading angle) of it.

GGM Navigation System

Our dead reckoning GPS receiver navigation system provides an intelligent recognition algorithm for satellite navigation accuracy to identify the positioning accuracy of satellite navigation based on the high precision navigation information provided by integrated navigation. If the satellite navigation accuracy is better, integrated navigation will be carried out, once satellite navigation signals are found to be very bad and even lost, inertial navigation is carried out. In a word, it switches from integrated navigation to inertial navigation automatically.

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Integrated Navigation System

Vehicle navigation systems often rely on the connection from the GPS receiver to the odometer and gyroscopes for high precision navigation and positioning in the challenging conditions. In some cases., the connection to the odometer signal is extremely complicated. When the signal accuracy in GNSS system is reduced and even satellite signals are lost, the vehicle can be accurately positioned and measured only by using inertial navigation technology. Of course, Our dead reckoning GPS receiver system can also connect with odometer signals with better positioning performance.

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Inertial Navigation System

The inertial navigation is based on Newton's laws of mechanics to conduct integrating to time and change it into navigation coordinates by measuring the acceleration of the carrier in the inertial reference frame. Thus, it can get information about speed, yaw angle, and position in navigation coordinates, as well as the carrier information. However, due to the serious drift of gyro and the shock of the vehicle, the inertial navigation system can not obtain high precise azimuth and velocity information by directly integrating acceleration. That means, existing micro inertial navigation systems are difficult to work independently for a long time.

Vehicle Attitude Angle

Our dead reckoning GPS receiver navigation system achieves the filtering of gyro drift and acceleration vibration signals using research experience in MEMS inertial devices for many years by adaptive filtering algorithm. Meanwhile, it can get high precision attitude information, so as to meet various needs of vehicle monitoring and navigation applications in ramp detection.

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Dead Reckoning GPS Receiver Interface Options

Regulated power for the dead reckoning GPS receiver is required.
A stable DC voltage supply is required for the VCC Pin.
Power supply ripple must be less than 30mV.
The input voltage Vcc should be 3.0V~5.0V (3.3V recommended).
The maximum current is 140mA.
Suitable decoupling must be provided by external decoupling circuitry.

RS232 Port

The GPS receiver supports two full-duplex serial channels RS232. All serial connections are at 5.0V TTL logic levels. When different voltage level is required, use appropriate level shifters. The baud rate of both serial ports is fully programmable. The data format is fixed: X, N, 8, 1, i.e. X baud rate, no parity, eight data bits and one stop bit, no other data formats are supported, LSB is sent first. The module’s default baud rate is set up to 9600bps, however, the user can change the default baud rate to any value from 4800 bps to 38400kbps. RS232 is used for booting and NMEA interface.

UART Port

The GPS receiver supports two full duplex serial channels UART. All serial connections are at 3V CMOS logic levels. When different voltage level is required, use appropriate level shifters. The baud rate of both serial ports are fully programmable. The data format is however fixed: X, N, 8, 1, i.e. X baud rate, no parity, eight data bits and one stop bit, no other data formats are supported, LSB is sent first. The modules default baud rate is set up to 9600bps, however, the user can change the default baud rate to any value from 4800 bps to 115kbps. UART port can be used for firmware upgrade, NMEA output and ublox proprietary commands input.

USB Port

The GPS receiver module supports single-chip USB to UART bridge,It is a USB 2.0 compliant full-speed device with integrated transceiver. Before using it, please install the appropriate USB driver.

Dead Reckoning GNSS GPS Receiver Mouse

Perfect Solution for Automotive Applications