Certus

Certus is a dual antenna GNSS/INS that provides accurate position, velocity, acceleration, and orientation under the most demanding conditions.

Roll & Pitch
0.1 °
Heading (GNSS)
0.1 °
Bias Instability
3 °/hr
Position Accuracy
10 mm

Certus combines temperature calibrated accelerometers, gyroscopes, magnetometers, and a pressure sensor with a dual antenna GNSS receiver. These are coupled in an AI-based fusion algorithm to deliver accurate and reliable navigation data. It features low SWaP-C (Size, Weight, Power, and Cost), internal data logging, and multiple communication interfaces for easy integration. Certus is available in both OEM and rugged packages and comes standard with license-free 1 cm RTK position accuracy.

AI Navigation Algorithm

Certus features Advanced Navigation’s revolutionary AI neural network sensor fusion algorithm. This provides an accuracy of up to 10 times that of a traditional Kalman filter. It was designed for control applications and has a high level of health monitoring and instability prevention to ensure stable and reliable data.

High-Performance MEMS

Certus contains high performance MEMS sensors that are put through Advanced Navigation's intensive 8 hour temperature calibration process. This provides the highest accuracy possible from this sensor class and outputs consistent accuracy over the full temperature range from -40°C to 85°C.

Dual Antenna RTK GNSS

Certus contains a dual frequency RTK GNSS receiver that provides up to 1 cm accuracy positioning and supports all of the current and future satellite navigation systems, including GPS, GLONASS, GALILEO, BeiDou and QZSS. Dual antenna heading provides high accuracy heading that is not impacted by magnetic interference and has no motion requirements.

Time Synchronisation

Certus contains a GNSS disciplined oscillator that can act as the primary time source within a distributed time system, enabling access to ultra-accurate system time using PTP or NTP network time sync. Certus also has a high-accuracy 1PPS and frequency output.

Multi-Protocol Support

Certus features multiple interfaces including Ethernet, CAN, RS232, RS422 and GPIOs. Certus supports all the industry standard protocols including NMEA 0183, NMEA 2000, TSS, PASHR, Simrad as well as a wide variety of proprietary protocols. It feaures a rich web UI and 256GB of internal logging.

Applications

Specifications

Navigation

Horizontal Position Accuracy
1.2 m
Vertical Position Accuracy
2.0 m
Horizontal Position Accuracy (with SBAS)
0.5 m
Vertical Position Accuracy (with SBAS)
0.8 m
Horizontal Position Accuracy (with RTK or Kinematica PPK)
0.01 m
Vertical Position Accuracy (with RTK or Kinematica PPK)
0.015 m
Velocity Accuracy
0.005 m/s
Roll & Pitch Accuracy
0.1 °
Roll & Pitch Accuracy (Kinematica Post Processing)
0.03 °
Heading Accuracy (Kinematica Post Processing)
0.06 °
Slip Accuracy
0.1 °
Heave Accuracy
5 % or 0.05 m
Range
Unlimited
Hot Start Time
500 ms
Output Data Rate
Up to 1000 Hz
Internal Filter Rate
1000 Hz

Sensors

Accelerometers

Range
±2 g • ±4 g • ±16 g
Bias Instability
20 ug
Initial Bias
< 5 mg
Initial Scaling Error
< 0.06 %
Scale Factor Stability
< 0.06 %
Non-linearity
< 0.05 %
Cross-axis Alignment Error
< 0.05 °
Noise Density
100 ug/√Hz
Bandwidth
400 Hz

Gyroscopes

Range
±250 °/s • ±500 °/s • ±2000 °/s
Bias Instability
3 °/hr
Initial Bias
< 0.2 °/s
Initial Scaling Error
< 0.04 %
Scale Factor Stability
< 0.05 %
Non-linearity
< 0.05 %
Cross-axis Alignment Error
< 0.05 °
Noise Density
0.004 °/hr/√Hz
Bandwidth
400 Hz

Magnetometers

Range
±2 G • ±4 G • ±8 G
Initial Scaling Error
< 0.07 %
Scale Factor Stability
< 0.09 %
Non-linearity
< 0.08 %
Cross-axis Alignment Error
< 0.05 °
Noise Density
210 uG/√Hz
Bandwidth
110 Hz

Pressure

Range
10 to 120 KPa
Bias Instability
10 Pa
Initial Bias
< 100 Pa
Noise Density
0.56 Pa/√Hz
Bandwidth
50 Hz

GNSS

Model
Advanced Navigation Aries
Supported Navigation Systems
GPS L1, L2 • GLONASS L1, L2 • GALILEO E1, E5b • BeiDou B1, B2
Supported SBAS Systems
WAAS • EGNOS • MSAS • GAGAN • QZSS
Update Rate
10 Hz
Hot Start First Fix
3 s
Cold Start First Fix
30 s
Horizontal Position Accuracy
1.2 m
Horizontal Position Accuracy (with SBAS)
0.5 m
Horizontal Position Accuracy (with RTK)
0.01 m
Velocity Accuracy
0.05 m/s
Timing Accuracy
20 ns
Acceleration Limit
4 g

Communication

Interface
Ethernet • RS232/RS422 • CAN
Speed
100Mbit • 4800 to 4M baud serial
Protocol
AN Packet Protocol • NMEA0183 • NMEA2000
Peripheral Interface
2x GPIO • 1x Auxiliary RS232
GPIO Level
5 V or RS232
GPIO Functions
1PPS Input/output • Odometer • Stationary • Air Data Input • NMEA input/output • Novatel GNSS input • Trimble GNSS input • AN Packet Protocol • CAN/CANopen • Event Trigger

Hardware

Operating Voltage
9 to 36 V
Input Protection
-40 to 100 V
Power Consumption (Typical)
2.64 W
Hot Start Battery Capacity
> 48 hrs
Hot Start Battery Charge Time
30 mins
Hot Start Battery Endurance
> 10 years
Operating Temperature
-40 °C to 85 °C
International Protection Marking
IP67
Environmental Protection
MIL-STD-810G
MTBF
140,000 hrs
Shock Limit
2000 g
Dimensions
78 x 115 x 34 mm
Weight
280 grams

Documentation

Datasheet
28 Sep 2021 - V3.1
Rugged Reference Manual (Online)
Latest
Rugged Reference Manual (PDF)
6 Sep 2021 - V1.5
Rugged 3D Model
19 Mar 2020 - V1.0
OEM Reference Manual (Online)
Latest
OEM Reference Manual (PDF)
6 Sep 2021 - V1.1
OEM 3D Model
28 Jan 2021 - V1.1

Software

Certus Manager

Certus Manager is the software provided for testing, configuration and logging with Certus. Please see the Certus reference manual for more information. Java is required to run this program.

28 Jun 2021 – V5.9

Certus Firmware

The firmware for all hardware versions of Certus. This can be loaded onto Certus using the web interface or the Certus Manager software. The changelog can be found in the Certus reference manual.

8 Oct 2021 – V1.53

Certus SDK

The Certus SDK provides example source code for interfacing with Certus through the AN Packet Protocol. The languages provided are C/C++, Java, and .Net C#.

08 Sep 2020 – V5.0

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