Precision Agriculture

Smart-FarmingMotion Tracking technology for precision agriculture and smart farming

The technological advances in precision agriculture and smart farming are following each other in a rapid pace. The wide variety of innovations include individual crop fertilization, precision navigation and autonomous food dispensing. In many of these applications, an IMU plays an important role.

Precision Agriculture


One of the first applications that springs to mind when speaking about precision agriculture or smart farming is navigating machines that drive on the fields for automation and efficiency. These can be harvesters, combines, fertilizers, ploughs and more. Most of these machines have an accurate GPS system, which allows the driver to know the location of the vehicle and to prevent double fertilization or missing a spot. However, there are several limiting factors to GPS that can be easily solved using IMUs or AHRSs. Xsens is one of the leading innovators in this technology, the MTi 1-series IMU/AHRS is designed with the precision agriculture developments in mind.

Compensation for antenna placement

The GPS antenna on agricultural vehicles is placed on top of the vehicle. With the height of the vehicle being more than several meters and the terrain being uneven, the discrepancy between the phase center of the antenna and the exact location of the vehicle on the ground can be tens of centimeters. Tilting or pitching 5 deg at a height of 4 meter yields a discrepancy of 35 cm. The GPS systems used in agriculture typically have accuracies of 1-5 cm, so determining the pitch and roll is a necessity.

Accurately steering a 180 deg turn

When going over the field, the machine drives a straight line up to the side of the field, then makes a 180 deg turn and drives a straight line back. Making the turn of 180 deg is something that cannot be determined with the GPS at the time of the actual turn. In order to determine heading with GPS, there must be a translating movement (a rotational movement on the spot is not sufficient). An IMU or AHRS, such as the MTi-1, is excellent for this purpose and can bring the vehicle on the new track.

GPS outages

Although not very likely as crops needs sun, there is the change of foliage on or around fields. This will result in GPS outages. These GPS outages can be compensated for with an IMU or AHRS. A smooth transition between the GPS position and the position in the GPS-denied environment is crucial. The Xsens IMUs offer timing and synchronization options, so that data can easily be merged.

DronesFlying with an octocopter for video and photo productions

Another interesting field of interest are drones. Airplanes are used in various situations, though mainly for fertilization. Drones offer the possibility to fertilize the crops after examination of the individual plants. For example size and color can be determined, so that the right amount of fertilizer can be applied. This will result in a lower use of fertilizer and healthier food production. The MTi 1-series is an excellent product for drones navigation and stabilization. When pointing the camera to the ground, it is necessary to know what the camera is filming. At a height of 10 meters, an error of 5 deg results in a 90 cm error. This can be the difference between the different rows.

Indoor robotics

Food dispensing
Cattle in barns can receive their food in the paths between the areas for the animals. Sticking their heads through the fence, they can reach the hay that it is piled up against the fence. However, while eating, the hay will be pushed away from the fence so that the cattle can no longer reach it. A farmer will be needed to push back the hay towards the fence. In larger barns, this is more and more being automated, where an unmanned ground vehicle (UGV) with a rotating hood swipes the hay to the fence. For the navigation and the correct distance from the fence, the UGV carries an IMU amongst other sensor systems.
Barn cleaning
On the other side of the fence, the cattle will defecate which will result in a slippery and dangerous floor. In order to remove this, a robot will sweep the barn and remove the excrements into the floor or drains. An IMU is essential to keep track.

Cases for Precision Agriculture

Robotic mining competition for NASA Mars Mission
How Virginia tech used an MTi sensor to navigate their mars robot.
ACSL Autonomous Aerial Drone – Leading the Industrial Revolution of the Skies
MiniSurveyer Drone
ACSL Autonomous Aerial Drone - Leading the Industrial Revolution of the Skies Shaping the future for autonomous driving
Shaping the future for autonomous driving
Fast-track your Research & Development in Autonomous Driving
Autonomous Driving
Fast-track your R&D in autonomous driving
PowerPlane – an autonomous aircraft that converts wind into electricity
An autonomous aircraft that converts wind into electricity
Aeroprobe Micro Air Data System Incorporates MTi-G-700 for UAV Applications
UAV Applications
Aeroprobe Micro Air Data System Incorporates MTi-G-700 for UAV Applications
Xsens MTi-G GPS/INS in unmanned aircraft
Unmanned aircraft
Xsens MTi-G GPS/INS in unmanned aircraft to collect highly accurate flight data.
Aerospy and Xsens
Aerospy and Xsens to offer customers in the field of (un)manned systems a more easy to install solution.
SkySails uses MTi to stabilize towing kite
SkySails towing kite
The innovative SkySails Propulsion System uses wind energy to reduce fuel costs and emission levels.
Warwick Mobile Robotics (Hexakopter)
Warwick Mobile Robotics is a collection of projects under development at the University of Warwick in the field of mobile robotics.
Xsens MTi’s used in fleet of autonomous robots
Xsens MTi’s used in fleet of autonomous robots.
CryoWing fixed-wing UAV
Fixed-wing UAV
CryoWing fixed-wing UAV by the Northern Research Institute in Norway (NORUT).
Unmanned Vehicle (DARPA Challenge)
Unmanned Vehicle
Unmanned Vehicle at DARPA Challenge by the University of Louisiana.
Control system for unmanned helicopter
Unmanned helicopter
Delft Dynamics develops control systems for manned and unmanned vehicles.


Please fill out this form and we will contact you within 2 days.


Xsens newsletter

Signup today to stay updated on all major Xsens news and developments. Subscribe now