Archimedes Innovation M992-INS

The Archimedes Innovation A&I M992-INS is a dual-antenna tightly coupled GNSS/INS positioning board for autonomous vehicles, marine robotics, machine control, and aerial mapping and inspection. It combines calibration without complex lever arm measurements, an embedded configuration interface, and INS output rates of 200 Hz, reaching 1000 Hz maximum.

Archimedes InnovationIMU sensors

Applications: Autonomous driving vehicles, port and mining automation, hydrographic surveying, marine robotics, and aerial mapping and inspection.

Product overview

The Archimedes Innovation A&I M992-INS combines dual-antenna GNSS and inertial navigation in a tightly coupled positioning board. Its internally developed calibration algorithm eliminates complex lever arm measurements, enabling plug-and-play installation. Applications span autonomous driving, port and mining automation, hydrographic surveying, marine robotics, and aerial mapping and inspection. Support for external high-performance IMU devices and L-band satellite-based augmentation signals extends its integration options across drones, unmanned surface vessels, low-speed vehicles, and port or mining vehicles.

The board measures 71 × 45 × 10 mm and weighs 24 g, with gyroscope and accelerometer measurement ranges of ±300 °/s and ±6g. Three RS232 interfaces, one RS422 interface, two CAN interfaces, Ethernet and 1PPS support system integration, while an embedded web interface enables querying and configuration. Dual-antenna GNSS observations and position/heading outputs run at 10 Hz, up to 20 Hz maximum; INS raw observations and fusion position outputs run at 200 Hz, up to 1000 Hz maximum. Operating temperature is -40°C to +85°C.

Flight control & navigation

Specifications

Archimedes Innovation M992-INS specifications
Specification	Value & conditions
Product	Archimedes Innovation A&I M992-INS dual-antenna tightly coupled GNSS/INS positioning board.
Applications	Autonomous driving vehicles, port and mining automation, hydrographic surveying, marine robotics, and aerial mapping and inspection.
Calibration and configuration	An internally developed algorithm engine eliminates complex lever arm measurements for plug-and-play calibration.
External support and web interface	Supports external high-performance IMU devices and L-band satellite-based augmentation signals; an embedded web interface provides module querying and configuration.
GPS	L1 C/A, L5, L2C
Galileo	E1, E5a, E5b
GLONASS	G1*
QZSS	L1 C/A, L2C, L5
NavIC	L5*
SBAS	L1*
DGPS positioning accuracy	Vertical 0.4m; Elevation 0.8mPositioning accuracy (1ρ).
RTK positioning accuracy	Vertical 0.8cm + 1ppm; Elevation 1.5cm+1ppmPositioning accuracy (1ρ).
Gyroscope bias repeatability	0.5 °/sGyroscope.
Gyroscope bias instability	1.8 °/s (XY); 1.5 °/s (Z)Gyroscope; XY and Z axes respectively.
Gyroscope angle random walk	0.09 °/√h (XY); 0.10 °/√h (Z)Gyroscope; XY and Z axes respectively.
Accelerometer bias repeatability	20 mgAccelerometer.
Accelerometer bias instability	15 μgAccelerometer.
Accelerometer angle random walk	0.035 m/s/ √ hAccelerometer.
Additional GNSS bands	BDS: B1I, B1C, B2I, B2a, B2b; Lband
Single-point positioning accuracy	Vertical 1.5m; Elevation 2.5mPositioning accuracy (1ρ); single-point positioning.
Velocity and directional accuracy	Velocity: 0.03m/s; directional: 0.1°/m baselineVelocity and directional accuracy (1ρ); directional accuracy per metre of baseline.
Timing accuracy	PPS ≤10ns; GPTP ≤1us; NTP ≤10msTiming accuracy by synchronization method.
Startup time	30sCold start.
Output frequencies	Dual-antenna GNSS observations: 10Hz (Max 20Hz); dual-antenna GNSS position and heading: 10Hz (Max 20Hz); INS raw observations: 200Hz (Max 1000Hz); INS fusion position: 200Hz (Max 1000Hz) Dual-antenna GNSS observations and position/heading outputs; INS raw observations and fusion position outputs.
Dead reckoning accuracy	0.2% (1km@3min)1km@3min.
Combined navigation modes	Single antenna, dual antenna, single point, floating, fixed, satellite base*
IMU measurement ranges	Gyroscope: ±300 °/s; accelerometer: ±6gGyroscope and accelerometer respectively.
Communications interfaces	RS232: 3; RS422: 1; CAN: 2; Ethernet: 1; 1PPS: 1
Dimensions and weight	71L × 45W × 10H mm; 24g
Environmental specifications	Operating temperature: -40°C to +85°C; storage temperature: -55°C to +95°C; humidity: 95% non-condensing; operational shock: EP455 Section5.14.1; random vibration: EP455 Section5.15.1 Humidity: non-condensing; shock: operational; vibration: random.