Ultra Low Weight & Small Size Economic Cost MEMS Based INS/GNSS Systems

iNAT-U200 is a family of ultra light weight small-size best performance MEMS based inertial measurement systems (IMS) of class 2.5 deg/hr / 0.1 mg (AllanVariance bias stability), consisting of 3 robust MEMS gyro axes and 3 MEMS accelerometer axes, integrated multi-frequencies/multi-constellations GNSS Receiver (simultanuously GPS, GLONASS, GALILEO, BEIDOU; L1 & L2 & Ex RTK, other on request - e.g. for Indian market), wheel sensor interface and an advanced 42+ state Kalman filter based INS/GNSS data fusion, which allows also the aiding by odometer.

iNAT-U200 provides the best SWaP and SWaP-C of its class (size, weight and performance & cost), available as OEM version (unhoused, ~50 grams) or as housed version, designed to meet military standards.  It is suitable for nearly all applications, also for UAV, UGV, USV, ROC and AUV.

The architecture of the iNAT systems allows also the aiding with any external position / velocity / time stamp / standard deviation data, e.g. obtained from machine vision, DVL or any aplication based aiding sensors.

The iNAT series is used for navigation, guidance and control of vehicles, stabilization of platforms, surveying reference as ground truth etc. in the fields of industrial, automotive, airborne, marine, railway surveying, train control, agriculture, surveying, defense and space applications.

Due to its ultra-robust design, iNAT-U200 is even used for extreme applications.

The iNAT-U200 is available in 4 different versions:

1. iNAT-U200/RLD-OEM-DA: unhoused OEM embedded version for system integrators, which like to integrate the system directly into their electronics or sensor compartment. This version has only 50 grams weight and includes a full strapdown INS/GNSS/ODO/XX navigator with RTK capable multi-frequency / multi-constellation GNSS and dual-antenna heading capability.
   An extensive integration kit is available for easy hardware and SW integration (incl. drivers for ROS-2, Python and C++ SDK).
2. iNAT-U200/RLD-M-DA: same capabilities as the unit described under a), but with a very short and sturdy IP67 resistant enclosure and connectors compatible to the series iNAT-M300. The system is EMI/EMC protected and has an integrated overvoltage protection. Also here a lab cable is available for easy integration.
3. iNAT-U200/RLD-MS-DA: same capabilities as the unit described under b), but with a longer enclosure (same as iNAT-M300). 
4. iNAT-U200/RLE-SP1-MS-DA: same capabilities as the unit described under c), but includes inertial MEMS sensors with higher resistance against vibration impacts.
5. iNAT-U200/RLE-LN1-MS-DA: same as d), but with low noise gyroscopes.
6. iNAT-U200/RLE-ULN1-MS-DA: same as d), but with ultra low noise gyroscopes.
7. iNAT-U200/RLD-CB-DA: same capabilities as the unit described under a), but with a sturdy enclosure and connectors fully compatible to the the legacy series iVRU-CB-M. The system is EMI/EMC protected and has an integrated overvoltage protection. Also here a lab cable is available for easy integration.
8. Customized versions: iMAR can deliver the system inside of any enclosure the customer requests. Ask our technical sales for further information!

The entire range of the members of the iNAT family regarding performance and technology from economic to high-end can be found here: 

Link to the entire iNAT system family

Features

• Made and qualified for nearly all applications: GNSS aided navigation (air, land, sea, subsea), attitude heading reference (AHRS), surveying, UAV, UGV, USV, ROV, AUV and RPV guidance & control, dead-reckoning navigation etc.
• Real-time data output: longitude, latitude, alttude / height, velocity, roll, pitch, yaw / heading, angular rates, acceleration, status; also calibrated INS/GNSS/ODO raw data available at high data rate (e.g. for post-processing)
• Interfaces: RS422 & RS232 (UART) Interfaces, CANaero / ARINC825 / CAN / CANopen, Ethernet (TCP/IP and UDP), SYNC-I/Os, Odometer (opto-coupler input 3.5 ... 30 V, A/B quadrature signals)
• Data output rate up to 500 Hz (each data log separately adjustable); on request also with 1'000 Hz data reate availabe.
• Minimum latency and minimum jitter on all data output
• Measurement range choseable (factory set):
  • standard range:+/-490 deg/s, +/-8 g
  • -HRR / high range rate: +/-2000 deg/s, +/-8 g -
  • -HRA / high range accel: +/-490 deg/s, +/-40 g
  • -HRR-HRA / high rage rate and high range accel: +/-2000 deg/s, +/-40 g
  • -LRR / low range rate: +/- 120 deg/s
    
• Inertial Sensor Performance: see datasheets
• Integrated 42+ state tightly or loosley or deeply coupled data fusion
• Internally up to 128 GByte non-volatile memory for data storage
• Dual-antenna GNSS Version to support heading determination also during initial standstill condition.
• Connectors: and all other features: see datasheets and ICD
• Drivers for ROS-2, Python and C++ SDK available.
• iNAT-U200 is neither ITAR nor export controlled.
• iNAT-U200 is used in many commercial, industrial, airborne and naval / marine applications. The systems are designed to meet MIL-STD-810H.

Note:

In compliance with our proven design philosophy and our technical code of conduct for development, production, and quality assurance of our products and solutions, only physics determines the behavior of iMAR’s measurement systems. The real-time output of our systems and solutions in the inertial signal path is achieved through the intelligent signal processing developed by our experienced engineers – not by artificial intelligence (AI).

Why?

We cannot recommend that integrators or users entrust the success of critical or general missions in inertial navigation, stabilization or control to the heuristic decisions of AI.

Rely on the high reliability, accuracy, and availability of iMAR solutions, as well as on the leading INS/GNSS/+ expertise and experience of our engineering team in Germany. This is based on our mathematically and physically precise algorithms, traceable results, our sensor, hardware, and algorithm design, and our production facilities, which are certified to military and aviation standards.

Note: We apply AI methods in signal processing where they provide benefits for the application (e.g., for improving image or scenario analysis). However, our highest priority is mission safety – even in so-called corner cases of applications, where AI is typically not sufficiently trained.