ROBOWORKS 4WD Mini Rosbot Pro Plus Instructions

ROBOWORKS 4WD Mini Rosbot Pro Plus

Product Information

Specifications:

• Rosbot Mini:
  • Motor Reduction Ratio: 1:27
  • Max Speed: 1.3m/s
  • Weight: 5.92kg
  • Max Payload: 10kg
  • Size: 445358125mm
  • Minimal Turning Radius: 0.77m
• Rosbot Pro:
  • Motor Reduction Ratio: 1:18
  • Max Speed: 1.65m/s
  • Weight: 19.54kg
  • Max Payload: 35kg
  • Size: 774570227mm
  • Minimal Turning Radius: 1.02m
• Rosbot Plus:
  • Motor Reduction Ratio: 1:18
  • Max Speed: 2.33m/s
  • Weight: 35.16kg
  • Max Payload: 22kg
  • Size: 766671319mm
  • Minimal Turning Radius: 1.29m

Product Usage Instructions

ROS Controllers:

Rosbot offers different categories suitable for various users. Choose the model based on your requirements.

Sensing System:

Rosbot comes equipped with LiDAR and Depth Camera for accurate sensing capabilities.

STM32 Board:

The STM32 board handles motor control, power management, and IMU functionalities. It is crucial for the operation of the robot.

Steering & Driving Systems:

The steering gear, wheels, encoder, and suspension system work together for precise movement control.

Battery Technical Specifications:

Understand the battery life and power supply requirements for optimal performance.

FAQ

Q: What are the main differences between Rosbot Mini, Pro, and Plus?

A: The main differences lie in their specifications such as speed, payload capacity, size, and turning radius. Choose the model that best fits your needs.

Q: What controllers are compatible with Rosbot?

A: Rosbot is compatible with Nvidia Jetson platform controllers
– Jetson Orin Nano for education and research, and Jetson Orin NX for prototyping and commercial applications.

Q: What sensing systems are integrated into Rosbot?

A: Rosbot comes with LiDAR and Depth Camera for accurate environment perception.

Prepared by: Wayne Liu & Tara Hercz
1 May 2024
Version #: 20240501

Summary
Rosbot is designed for ROS (Robot Operating System) developer, educator and students. The heart of Rosbot is the fully programmable software framework and configurable hardware architecture based on the most popular robotic platform – ROS.

Rosbot comes with three categories:

• Rosbot – Suitable for ROS beginners and low budget projects.
• Rosbot Pro – Suitable for ROS developers and educators who need a versatile system for rapid prototyping or teaching.
• Rosbot Plus – This is the 4WD version of Rosbot with Independent Suspension Systems. This category is serious enough to be considered for industrial and commercial development.

Rosbot comes with popular ROS controllers such as:

• Jetson Orin Nano
• Jetson Orin NX

Key Component

Product Specifications

Introduction of ROS Controllers

There are 2 types of ROS Controllers available for use with the Rosbot based on Nvidia Jetson platform. Jetson Orin Nano is ideal for education and research. Jetson Orin NX is used more often in prototyping and commercial applications.
The following table illustrates the main technical differences between the various controllers available from Roboworks. Both boards allow high level computation and are suited towards advanced robotic applications such as computer vision, deep learning and motion planning.

Sensing System: LiDAR & Depth Camera

A Leishen LSLiDAR is installed on all Rosbot variations with either the N10 or M10 model being used. These LiDAR’s offer a 360 degree scanning range and surroundings perception and boast a compact and light design. They have a high Signal Noise Ratio and excellent detection performance on high/low reflectivity objects and perform well in strong light conditions. They have a detection range of 30 metres and a scan frequency of 12Hz. This LiDAR integrates seamlessly into the Rosbots, ensuring all mapping and navigational uses can be easily achieved in your project.
The below table summaries the technical specifications of the LSLiDARs:

Additionally, all Rosbots are equipped with an Orbbec Astra Depth Camera, which is an RGBD camera. This camera is optimized for a rage of uses including gesture control, skeleton tracking, 3D scanning and point cloud development. The following table summarizes the technical features of the depth camera.

STM32 Board (Motor Control, Power Management & IMU)

STM32 Board
The STM32 is the micro-controllers used in all Rosbots. The STM32 board has a high performance ARM Cortex -M3 32-bit RISC core operating at a 72MHz frequency along with high-speed embedded memories. It operates in -40°C to +105°C temperature range, suiting all robotic applications in worldwide climates. There are power-saving modes which allow the design of low-power applications. Some of the applications of this microcontroller include: motor drives, application control, robotic application, medical and handheld equipment, PC and gaming peripherals, GPS platforms, industrial applications, alarm system video intercom and scanners.

Front of STM32 board:

Steering & Driving System

The Steering and Driving system is integrated with the design and build of the Rosbot. Depending on the model purchased it will be either a 2 wheel or 4 wheel drive, with both options being suitable to a variety of research and development purposes. The wheels on all Rosbots are solid rubber with snow protection grade tires. There is a coaxial pendulum suspension system, and the top range Rosbots are equipped with shock absorbers with independent suspension systems, ensuring it is able to successfully navigate difficult terrain.

Steering and Driving Technical Specifications

Rosbot Chassis Design Diagram:

Rosbot Pro Chassis Design Diagram:

Rosbot Plus Chassis Design Diagram:

Battery Technical Specifications

All Rosbots come with a 5000 mAh battery and a Power Charger. Customers can upgrade the battery to 10000 mAh or 20000 mAh with additional cost. The 20000 mAh battery is too large to house within the enclosure of any Rosbots. It can only be installed on the top of the Robot chassis.

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