Autonomous Tracked Robots in Planar Off-Road Conditions: - download pdf or read online

By Ramón González, Francisco Rodríguez, José Luis Guzmán

ISBN-10: 3319060376

ISBN-13: 9783319060378

ISBN-10: 3319060384

ISBN-13: 9783319060385

This monograph is framed in the context of off-road cellular robotics. particularly, it discusses concerns with regards to modelling, localization, and movement keep watch over of tracked cellular robots operating in planar slippery stipulations. Tracked locomotion constitutes a well known resolution for cellular systems working over diversified difficult terrains, consequently, tracked robotics constitutes an incredible learn box with many functions (e.g. agriculture, mining, seek and rescue operations, army activities). the explicit issues of this monograph are: ancient viewpoint of tracked autos and tracked robots; trajectory-tracking version bearing in mind slip impact; visual-odometry-based localization recommendations; and complex slip-compensation movement controllers making sure effective real-time execution. actual experiments with a true tracked robotic are offered displaying the higher functionality of the instructed novel methods to identified recommendations.

key words: longitudinal slip, visible odometry, slip-compensation keep watch over, powerful predictive regulate, trajectory tracking.

comparable topics: Robotics – Mechanical Engineering – Mechanics – machine technological know-how – synthetic Intelligence - Applications

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Additional resources for Autonomous Tracked Robots in Planar Off-Road Conditions: Modelling, Localization, and Motion Control

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The trajectory obtained using the EKM closely follows the ground-truth. 64 [m]. 24 [%] with respect to 28 2 Modelling Tracked Robots in Planar Off-Road Conditions (a) Mobile robot (b) Detail of the soil Slips Trajectories 100 1 Right track Left track 0 80 Slip [%] Y [m] −1 −2 Reference CKM EKM DGPS −3 −4 60 40 20 −5 −6 −5 0 5 10 X [m] 15 20 25 (c) Travelled distances 0 0 2 4 8 6 Time [s] 10 12 14 (d) Slip (Doppler radar and encoders) Fig. 84 [%] for the CKM. 9d. In this case, the median slip value is 8 [%].

In the experiments, the DGPS and the magnetic compass data were considered as ground-truth for position and orientation, respectively. Notice that, as in Chapter 2, the position obtained using the DGPS is translated to relative position. For that purpose, the global position (Latitude/Longitude) was converted to UTM grid system [51]. For comparison purposes, a wheel-based odometry localization approach was implemented. Experiment 1. Squared Trajectory In this experiment, the robot was manually driven on a sunlit illuminated gravel terrain following a squared trajectory.

The top left corner of the new image is W inqw , λq q W inh W inq (v) = W inqh − . 18) In this way, the computation time is decreased, since correlation process is carried out over a smaller image, such as shown in the following subsection. Effect of Template and Image Sizes on the Computation Time Before carrying out physical experiments, the effect of the template and image sizes on the computation time has been analyzed. 3). 5 GB RAM. 4 shows the resulting computation time of varying the template and image sizes (“Mean” is the mean computation time of the sequence of images and “Std” denotes the standard deviation).

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Autonomous Tracked Robots in Planar Off-Road Conditions: Modelling, Localization, and Motion Control by Ramón González, Francisco Rodríguez, José Luis Guzmán

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