1. ROTTWEILER
The Rottweiler is a small and efficient field robot, that perfects in navigation and plant
observation. It has a dedicated microcomputer, IMU, stereo camera, and a laser sensor. The
Rottweiler is a creation of the members of the Robotics group of Hochschule Rhein Waal
under the supervision of Prof. Dr. Ronny Hartanto and valuable feedback and suggestions
from Prof. Dr. -Ing. Roland Schmetz and Dipl.-Ing. Christian Berendonk.
SOFTWARE AND SUBSYSTEM OVERVIEW
The navigation system of the robot is a hybrid reflex-deliberate system, where obstacle
avoidance is done with high priority based directly on sensor data ( Ultrasound, laser sensor
and the camera).
The control algorithm represents a state machine, where depending on situation robot
assumes different states. As such, it can be in avoidance maneuver execution state, safe –
plan execution and standby states, and their derivatives.
The software is based on C/C++, Python and OpenCV library, as well as few other Open
Source components.
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2. FEATURES
Functionality Rottweiler with its powerful battery and sensors can
autonomously navigate, recognize and count plants.
Stability Rottweiler uses Tegra K1 as its core processing unit,
which is a powerful GPU. NVIDIA ​Tegra K1 drives the
world's most powerful supercomputers and vision
systems, which results in smooth operation of the
robot.
Efficiency Rottweiler is an all-rounder in terms of design and
control. Choose from the extensive list of compatible
sensors, cameras, and other accessories to integrate via
Rottweiler’s simpler mounting interface.
KEY POINTS
● Manual steering possible with a controller.
● Navigation at night possible.
● Interchangeable 2-wheel to 4-wheel drive.
● Ultrasonic and laser sensor for obstacle avoidance.
● Lightweight aluminium chassis.
● All terrain and Weather-proof (IP-62).
● Modularity in drive system.
● Modular design to allow future installation of manipulator or other subsystems.
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3. TECHNICAL SPECIFICATIONS
​ Side view Front view
SIZE AND WEIGHT
EXTERNAL DIMENSIONS (L X W X H) 510 X 460 X 210 mm
INTERNAL DIMENSIONS (L X W X H) 500 X 275 X 155 mm
WEIGHT 15 kg
WHEELS 203 mm (8 inch) Lug Tread
GROUND CLEARANCE 55 mm
SPEED AND PERFORMANCE
MAX PAYLOAD 15 kg
MAX SPEED 1.0 m/s
DRIVE POWER 500 W
DRIVETRAIN MODES 4-wheel drive or Front wheel drive
MAX CLIMB GRADE 30° (58% Slope)
BATTERY AND POWER SYSTEM
BATTERY CHEMISTRY Lithium Polymer
CAPACITY 14.8 V, 5.8 Ah x 4 units
RUNTIME 30 mins
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4. USER POWER 340 W
INTERFACING AND COMMUNICATION
CONTROL MODES Autonomous or Remote controlled
COMMUNICATION RS232, WLAN, Bluetooth
DRIVERS AND APIs ROS, OpenCV, C++, and Python
SENSORS AND PROCESSING UNIT
STEREOVISION DUO MC stereo camera
DEPTH SENSOR Hokuyo 2D Laser Scanner, and
Ultrasonic sensor
AUXILIARY SENSORS IMU, Compass, and encoders
PROCESSING UNIT Tegra K1
ENVIRONMENTAL
OPERATING TEMPERATURE -10 to 40 °C
RATING IP62
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