AHRS/IMU

SPATIAL OEM GNSS/INS/AHRS

Spatial OEM is a miniature GPS aided inertial navigation system and AHRS that provides accurate position, velocity, acceleration and orientation under the most demanding conditions. It combines temperature calibrated accelerometers, gyroscopes, magnetometers and a pressure sensor with an advanced GNSS. These are coupled in a sophisticated fusion algorithm to deliver accurate and reliable navigation and orientation. The OEM version is designed to be integrated into customer's products.

Calibrated Dynamic Ranging Sensors Spatial OEM contains high performance MEMs inertial sensors. These are put through Advanced Navigation's intensive calibration process to increase their performance further still and provide consistently accurate data over an extended temperature range of -40°C to 85°C. Advanced Navigation's custom calibration process is the only full sensor calibration that can provide dynamic ranging, allowing the user to select a sensor range for high accuracy or high accelerations on the fly. As part of this calibration, every Spatial OEM unit spends 8 hours in our specially built rotating temperature chamber.

Multi Constellation GNSS Spatial OEM's next generation GNSS receiver supports all of the current and future satellite navigation systems including GPS, GLONASS, GALILEO and BeiDou. These additional satellite constellations allow Spatial to provide accurate position and velocity data in environments where GPS only units can't, such as urban canyons and indoors. When Spatial OEM can't get a satellite fix, it continues to navigate using inertial navigation.

Advanced Filter Spatial OEM contains Advanced Navigation's revolutionary new sensor fusion filter. The filter is more intelligent than the typical extended kalman filter and is able to extract significantly more information from the data by making use of human inspired artificial intelligence. It was designed for control applications and has a high level of health monitoring and instability prevention to ensure stable and reliable data.

Miniature Package Spatial OEM's miniature package size allows it to be easily integrated into customer's products. The module is mounted without any direct soldering through a board to board connector and securely held in precise alignment with four screw mounts. This completely avoids the sensor calibration changes associated with the heat from soldering.

Hot Start Spatial OEM contains a next generation battery backup system that allows it to hot start inertial navigation from its last position in 500 milliseconds and obtain a GNSS fix in approximately 3 seconds. The battery backup system lasts for the lifetime of the product and will provide backup for 24 hours without power.

Reliability Spatial OEM has been designed from the ground up for mission critical control applications where reliability is very important. It is built on top of a safety oriented real time operating system and all software is designed and tested to safety standards with fault tolerance in mind. The hardware is protected from reverse polarity, overvoltage, surges, static and short circuits. The GNSS contains RAIM, which excludes both malfunctioning, and tampered satellite signals.

High Update Rate Spatial OEM's internal filter runs at 800Hz and data can also be output at this rate over high speed RS232. This allows for control of dynamically unstable platforms. Spatial is also highly tolerant of dynamic movement and vibration with a very advanced custom navigation filter.

Peripherals Spatial features two general purpose input output pins that support an extensive number of peripherals. Including odometer based input for ground vehicles, RTK GPS systems, DVLs and USBLs for underwater navigation, NMEA input/output and more. For an integration fee, custom peripheral devices can be added.

Mass Production Spatial OEM is manufactured on a high speed fully autonomous production line that performs extensive testing and calibration on each unit. This cuts the cost of Spatial OEM and allows for significantly higher supply volumes, reduced lead times and higher reliability.

APPLICATIONS

ROBOTICS Spatial OEM’s accurate orientation data allows for stabilization of robotic systems and its position, velocity and acceleration data can be used for robot navigation. Spatial OEM’s high update rate allows it to control dynamically unstable platforms and its focus on safety and reliability provides for piece of mind.

MOTORSPORT Spatial OEM is an excellent tool for performance measurement in motorsport. From the velocity and orientation data, slip, oversteer and understeer can be calculated. The velocity and acceleration data can be used to calculate improvements to braking and accelerating. Position can be used to determine the deviation from the optimum track position. Spatial OEM’s high vibration tolerance and dynamic range means there are no concerns about engine or road vibration. Spatial OEM also supports data output to data acquisition systems such as motec products.

HUMAN MOVEMENT Athletes and sports scientists can use Spatial OEM to analyse human movement. Multiple units can be used to analyse kinematic joint movement. The extremely small size and weight allows the unit to be worn without impacting movement or performance.

EXTREME SPORTS In extreme sports Spatial OEM can be used to determine competitive performance and human endurance limits. For example by comparing the time, velocity and distance involved in a stunt, competitor performance can be better analysed than visual judges. By monitoring velocities and accelerations, athlete’s can ensure they are within safe human endurance limits. Spatial’s high dynamic range and performance under dynamic manoeuvring make it an excellent choice in this field.

TRACKING AND SECURITY Spatial OEM’s GNSS RAIM satellite verification, high sensitivity and multiple constellations make it difficult for thieves to spoof. Even if GNSS is lost, Spatial can continue to accurately navigate on its other sensors indefinitely when a vehicle odometer input is attached. Its memory backup means that cutting the power will not lose its position either. This makes it an excellent choice for tracking and security where it is nearly impossible for thieves to circumvent.

YOUR APPLICATION Contact us to discuss integrating Spatial OEM into your application.

SPECIFICATION

Navigation

Horizontal Position Accuracy 2.0 m

Vertical Position Accuracy 3.0 m

Horizontal Position Accuracy(with DGNSS) 0.6 m

Vertical Position Accuracy(with DGNSS) 1.0 m

Velocity Accuracy 0.05 m/s

Roll & Pitch Accuracy(Static) 0.2 °

Heading Accuracy(Static) 0.5 °

Roll & Pitch Accuracy(Dynamic) 0.4 °

Heading Accuracy(Dynamic with GNSS) 0.2 °

Heading Accuracy(Dynamic, Magnetic Only) 0.8 °

Heave Accuracy 5 % or 0.05 m(whichever is greater)

Range Unlimited

Hot Start Time 500 ms

Internal Filter Rate 800 Hz

Output Data Rate Up to 800 Hz

Latency 0.3 ms

Sensors

Sensor

Accelerometers

Gyroscopes

Magnetometers

Pressure

Range(Dynamic)

2 g
4 g
16 g

250 °/s
500 °/s
2000 °/s

2 G
4 G
8 G

10 to 120 KPa

Noise Density

150 ug/√Hz

0.008 °/s/√Hz

210 uG/√Hz

0.56 Pa/√Hz

Non-linearity

< 0.05 %

Bias Instability

20 ug

3 °/hr

100 Pa/yr

Scale Factor Stability

< 0.05 %

Cross-axis Alignment Error

< 0.05 °

Bandwidth

400 Hz

110 Hz

50 Hz

GNSS

Supported Navigation Systems

GPS L1
GLONASS L1
GALILEO E1
BeiDou L1

Supported SBAS Systems

WAAS
EGNOS
MSAS
GAGAN
QZSS

Update Rate 10 Hz

Cold Start Sensitivity -143 dBm

Tracking Sensitivity -160 dBm

Hot Start First Fix 3 s

Cold Start First Fix 30 s

Horizontal Position Accuracy 2.5 m

Horizontal Position Accuracy(with SBAS) 2 m

Velocity Accuracy 0.05 m/s

Timing Accuracy

25 ns

Acceleration Limit 5 g

Communication Interface UART TTL

Speed 4800 to 16M baud

Protocol

AN Packet Protocol or NMEA

Peripheral Interface

4x GPIO

GPIO Level

5 V Output
5 V or 3.3 V Input

GPIO Functions 1PPS

Odometer Stationary
Pitot Tube NMEA input/output
Novatel RTK input
Topcon RTK input
Motec Logger Output
AN Packet Protocol input/output
Custom (contact us)

Hardware

Operating Voltage 4.2 to 17 V

Input Protection ±30 V

Power Consumption 95 mA @ 5 V (typical)

Hot Start Battery Capacity > 24 hrs

Hot Start Battery Charge Time 30 mins

Hot Start Battery Endurance > 10 years

Operating Temperature -40 °C to 85 °C

MTBF > 50,000 hrs

Shock Limit 2000g

Dimensions 25x25x6 mm

Weight 4 grams