Inertial Measurement Unit News

MIT’s fleet of robotic boats has been updated with new capabilities to “shapeshift,” by autonomously disconnecting and reassembling into different configurations to form various floating platforms in the canals of Amsterdam. In experiments in a pool, the boats rearranged themselves from a connected straight line into an “L” (shown here) and other shapes.
Image Credit: MIT

ROBOATS: MIT's Shape-Shifting Autonomous Boats

platform” (CVP). All coordinator and worker units have four propellers, a wireless-enabled microcontroller, and several automated latching mechanisms and sensing systems that enable them to link together.Coordinators, however, also come equipped with GPS for navigation, and an inertial measurement unit (IMU), which computes localization, pose, and velocity. Workers only have actuators that help the CVP steer along a path. Each coordinator is aware of and can wirelessly communicate with all connected workers. Structures comprise multiple CVPs, and individual CVPs can latch onto one another

Photo: Silicon Sensing Systems

Silicon Sensing Unveils New MEMS IMU

Silicon Sensing Systems  will launch a new high performance all-MEMS inertial measurement unit (IMU), AMU30, at Sensors Expo this month. AMU30 is the company’s first IMU to combine high performance motion sensing with full attitude and heading reference system (AHRS) capabilities.  Based upon the DMU30, the AMU30 is designed to respond to growing demand for a tactical grade, non-ITAR (International Traffic in Arms Regulations) IMU that also outputs pitch, roll and heading data. The AMU30 is a micro electro-mechanical system (MEMS) product offering a real alternative to heavier

(Image: SBG Systems)

SBG Systems Unveils New IMU

Inertial motion sensing solutions provider SBG Systems has released the Horizon IMU, a FOG-based high performance inertial measurement unit (IMU) designed for large hydrographic vessels surveying harsh environments.Navsight Marine Solution consists in a powerful and ready-to-use inertial navigation solution dedicated to hydrographers. It is available at different levels of accuracy to meet the various application requirements and can be connected to various external equipment such as Echo-sounders, LiDAR, etc.Navsight Marine Solution already offered two levels of performance with the Ekinox and Apogee

A Hugin AUV being launched (Courtesy Kongsberg)

Unmanned Vehicles: 25 Years of Milestones

payload sensor suite including side-scan sonar, sub-bottom profiler, multibeam echosounders, magnetometers and cameras. Emerging payloads demonstrated on Hugin include synthetic aperture sonar and laser scanners. The navigation solution for Hugin AUVs uses raw output from an onboard inertial measurement unit (IMU) coupled with other available in-situ sensors processed in real-time using a Kalman filter. These are all significant improvements from the first Odyssey vehicles that carried little more than a temperature sensor and counted propeller turns for undersea positioning purposes.Commercially

Figure 1: The Sea Otter Surf Zone Crawler

Seafloor Crawlers: New Robotic Tools for Challenging Missions

submerged. Track design can be modified for more aggressive grip or made wider and longer to reduce the ground pressure contact. Fenders are added to minimize turbulence and drag.Autonomous navigational accuracy is achieved by fusing data from a single axis fiber-optic gyro (FOG) and a 3-axis inertial measurement unit. A dual-band GPS receives a fix when surfaced and is used as a cross-check on position. Shaft encoders on each drive side measure distance traveled.Accuracies of 2% of total range have routinely been achieved. Turn-in-place (TIP) and arc-turns are calculated to maintain path accuracy. Figure

(Photo: OceanGate)

iXblue Equips Manned Submersible for Titanic Mission

Gyroscope (FOG) technology, Phins 6000 subsea Inertial Navigation System (INS) provides accurate position, heading, attitude, speed and depth information as the manned submersible captures laser data and the first ever 4K images of the RMS Titanic shipwreck and debris fields. Its high-accuracy inertial measurement unit is coupled with an embedded digital signal processor that runs an advanced Kalman filter for optimum positioning of the subsea vehicle.Increased positioning precision of Titan on the shipwreck site will be provided by Posidonia, iXblue’s long range and high accuracy USBL system that

Photo: SBG Systems

SBG Systems Launches Navsight Marine Solution at OI2018

inertial navigation solution designed to made surveyors’ tasks easier on both shallow and deep water.   Built on a proven technology, Navsight strengthens SBG Systems position as leading innovator in the marine technology market. Navsight Marine Solution consists in an Inertial Measurement Unit available at two different performance levels (from shallow to deep water), and connected to Navsight, a rugged processing unit embedding the fusion intelligence, the GNSS receiver when selected, and all connections to external equipment such as echo-sounders, sonar, etc.   Navsight

(Photo: Blueye Robotics)

Hurtigruten Brings Underwater Drones to Exploration Cruising

(4 knots) Run-time: At least 2 hrs normal operation Thrusters: 4 x 350 W; plus 2 rear, 1 vertical center, 1 lateral Automation: Auto heading, auto depth Camera: Full HD 1080p/30fps, wide angle lens Search Light: Powerful LED below camera, with fittings for extra lights as payload Sensors: Inertial Measurement Unit (IMU) with 3-axis gyro and 3-axis accelerometer; depth sensor; magnetometer; temperature (inside and outside) Payload: Standard fittings for payload on both top and bottom side of drone Software: Remote update of drone software Wireless transmitter: WiFi router for wireless connection

Image: SBG Systems

SBG Systems Debuts New Post-processing Software

, U.K. After the survey, this full-feature software gives access to offline RTK corrections, and process inertial and GNSS raw data to further enhance accuracy and secure the survey.   For more than 10 years, SBG Systems has been designing inertial navigation systems from the internal Inertial Measurement Unit to the filtering with GNSS data. Expert in real-time data fusion, the company takes another step in the surveying industry by unveiling Qinertia, a fully in-house Post-Processing Kinematic (PPK) software. Whether the survey is made from a car, a UAV, a plane or a vessel, Qinertia will secure

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