Release of 4WDS Rover X120A-LB, a Research and Development Dolly Robot with a Payload Capacity of Approximately 120kg, ROS 2 Compatibility, and a Large Capacity Battery

Vstone Co., Ltd. (Headquarters: Osaka City, Osaka Prefecture, Representative Director: Shinobu Daiwa) will release the "4WDS Rover X120A-LB," a large model of their ROS 2 compatible research and development dolly robot. This model is equipped with a large capacity battery approximately three times the capacity of the standard model and features an independent four-wheel steering mechanism.

4WDS Rover X120A-LB

Main Features

The 4WDS Rover X120A-LB is a research and development dolly robot equipped with an independent steering mechanism for each of its four wheels, enabling omnidirectional movement despite using conventional wheels. With a large chassis capable of carrying approximately 120kg, it allows for ample operational margin even when equipped with various measurement instruments and computing devices.

This product is a battery capacity increased model of the base model "4WDS Rover X120A," featuring a battery capacity approximately three times larger than the base model. It can supply sufficient power for advanced processing and supports operation under a wide range of conditions.

With a payload capacity of approximately 120kg and a large capacity battery of 24V 60Ah, the 4WDS Rover X120A-LB can accommodate large equipment and mobile mechanisms on its upper surface. It can be equipped with robot arms, large payloads, advanced sensors, and their processing units, making it suitable as a base model for modern robotics research and application, going beyond the scope of simple AGVs or AMRs to serve as an avatar robot for remote control or a robot for physical AI utilization.

(1) Equipped with a large capacity Li-Fe battery for extended operating time

This product is equipped with a 1440Wh (24V 60Ah) Li-Fe battery. Compared to the base model 4WDS Rover X120A, the battery capacity has been increased by approximately three times.

Research and development dolly robots often carry various measurement instruments, as well as computing devices for image and information processing, and drive components. As the required processing and tasks become more advanced, the equipment also tends to become larger. The 4WDS Rover X120A-LB enables longer operating times even when equipped with numerous expansion devices.

(2) Controllable via wired/wireless connection

The 4WDS Rover X120A-LB supports both Wi-Fi wireless communication and wired USB serial communication. It can be controlled from various devices such as PCs and tablets using specified commands.

Additionally, a wireless robot controller board and a game controller are included as standard, allowing for wireless operation of the unit without connecting a PC. The analog sticks can be used for forward/backward movement and rotation, serving as manual operation for function checks or as an emergency operation method.

(※) Product specifications are subject to change without notice.

Wireless robot controller board and game controller included as standard

(3) Supports a variety of optional accessories

The 4WDS Rover X120A-LB supports numerous optional accessories. Sensors and components can be added according to the intended use, allowing users to fully leverage the capabilities of this large research and development dolly robot while benefiting from the large battery capacity in diverse research and development fields. Please refer to the specifications sheet for details.

(4) Features an easily expandable aluminum frame

The main frame of this product is constructed from aluminum components. While offering sufficient strength, it is also easy to process, allowing users to easily implement various expansions themselves. Holes can be drilled in the top plate to add components, providing the flexibility essential for advancing research and development.

Features an easily expandable aluminum frame

(5) Programmable with Arduino IDE

The control board "VS-WRC071" equipped in this product features an ESP32-S3-WROOM-1 microcontroller, allowing control programs to be created using the Arduino IDE. Sample code is provided in the form of an Arduino library with the product, enabling users to customize the firmware themselves.

(※) An environment capable of running Arduino IDE 1.8.19 or later is required for programming VS-WRC071 using Arduino IDE.

Control board VS-WRC071

(6) Emergency stop switch included as standard

This product comes standard with an "Emergency Stop Switch." The mounting position of the emergency stop switch can be freely changed as long as there are no wiring length or interference issues with other equipment. It is designed to be attached by the user according to the actual operating situation and the mounting status of additional expansion equipment.

Emergency stop switch included as standard

(7) Compatible with ROS 2 control

The 4WDS Rover X120A-LB supports ROS 2 message communication. By connecting to a ROS-enabled device via Wi-Fi or USB cable, ROS message communication using micro-ROS is possible.

The sample firmware allows sending movement speed commands from ROS to the Mega Rover using geometry_msgs/msg/Twist type, and acquiring current speed and battery voltage from the Mega Rover. Furthermore, by modifying the firmware, users can send and receive arbitrary messages in addition to the above.

Note that a device running ROS must be prepared separately (e.g., ROS PC (NUC14) option). The recommended operating environment for devices is as follows (setup of libraries not included with this product may be required).

【Recommended Operating Environment for ROS 2 Usage】

OS

Ubuntu 22.04 (64bit)

ROS

ROS 2 Humble

CPU

Intel® Core™ Ultra 5 125H Processor

RAM

32GB

Storage

M.2 SSD 256GB

Graphics

Intel® Arc™ GPU

(※) If not using the ROS PC option, the ROS environment must be set up by the user.

(※) Even if the above conditions are met, it may not operate correctly due to compatibility issues.

(※) Virtual environments are not recommended as they may not allow for safe control due to time lag.

YouTube Video of this Product

https://www.youtube.com/embed/3L2U-zhxvaw

Configuration Diagram

Dimensions (with bumper option (all-around) installed)

Reference Material: Naming Convention for Vstone Co., Ltd. Research and Development Dolly Robots

Vstone Co., Ltd. has established the following naming convention to clearly represent its diversifying series of research and development dolly robots, and has adopted it for newly released products (it does not apply to previously released products). This naming convention may be changed or expanded in the future as product offerings grow.

(The "LB" at the end of this product name stands for Large Battery.)

Main Unit Specifications

Dimensions

W530×L530×H265 (mm)

Main Unit Weight

Approx. 43.6kg

Maximum Speed (Measured Value)

1.6m/s

Payload Capacity

Approx. 120kg

Main Unit Material

Aluminum

Battery

24V 60Ah (1440Wh) Li-Fe Battery

Drive System

Four-wheel drive, independent steering

Wheel Diameter

170mm

Motor

BLDC Motor 45W×4, 105W×4

Control Board

VS-WRC071

ROS Compatibility

ROS 2 Compatible

SDK

Arduino Library for 4WDS Rover X120A-LB, ROS Package

Included Samples

(※) Setup of libraries not included with this product may be required.

Arduino Library Wheel Control / Various Communication Functions, etc.

Sample Code for ROS 2 Communication with Rover / Odometry Acquisition / Operation from Mouse (Touchpad)

Interface

USB Serial, Wi-Fi (IEEE802.11b/11g/11n)

Accessories

Charger, Wireless Gamepad

Order Options

Laser Range Finder / Bumper Option (Front/Rear, All-around) Power Board for Expansion Devices VS-WRC054 / Raspberry Pi 4B ROS PC (NUC14) / GPU PC / Camera Mount / Depth Camera Remote Control / Dolly Robot Arm AMIR 740 Pan-Tilt Unit / @mobi Compatible Hardware Set (Inquire for details)

(※) This product is for indoor use only. It is not designed for outdoor use.

Product specifications are subject to change without notice.

Sales Information

Orders are accepted through Vstone Co., Ltd.'s official web shop.

・4WDS Rover X120A-LB: Open Price

Product Page: https://www.vstone.co.jp/products/wheelrobot/

Sales Page: https://www.vstone.co.jp/robotshop/index.php?main_page=product_info&products_id=5420

・LRF Option TG30 / Set: ¥88,000 (incl. 10% tax)

An optional accessory for detecting obstacles around the robot, ordered with the main unit. Can be attached to the front, rear, or both sides of the robot.

・3D LiDAR Option / Set: ¥148,500 (incl. 10% tax)

An optional accessory for acquiring 3D distance information in addition to planar distance, ordered with the main unit. Can be attached to the front, rear, or both sides of the robot.

・Bumper Option (Front/Rear) / Set: ¥88,000 (incl. 10% tax)

An optional accessory for detecting collisions with walls, etc., attached to the front and rear of the robot, ordered with the main unit.

・Bumper Option (All-around) / Set: ¥176,000 (incl. 10% tax)

An optional accessory for detecting collisions with walls, etc., attached to all sides of the robot, ordered with the main unit.

・Power Board for Expansion Devices Option VS-WRC054 / Set: ¥44,000 (incl. 10% tax)

An optional accessory for supplying power from the main unit's battery to expansion devices such as Raspberry Pi 4B or ROS PC (NUC14) options, ordered with the main unit. This is mandatory when installing the Raspberry Pi 4B option, ROS PC (NUC14) option, or GPU PC option.

・Raspberry Pi 4B Option / Set: ¥22,000 (incl. 10% tax)

An optional accessory for shipping with a Raspberry Pi 4B 4GB version installed, ordered with the main unit. The Power Board for Expansion Devices Option VS-WRC054 is required separately. SD card and OS image are not included.

・ROS PC (NUC14) Option / Set: ¥401,500 (incl. 10% tax)

An optional accessory for installing a pre-configured PC for ROS control on the dolly robot, ordered with the main unit. The Power Board for Expansion Devices Option VS-WRC054 is required separately.

・GPU PC Option / Set: ¥621,500 (incl. 10% tax)

An optional accessory that allows the installation of a powerful computing unit (PC) equipped with NVIDIA® Jetson Orin™ NX, ordered with the main unit. The Power Board for Expansion Devices Option VS-WRC054 is required separately.

・Camera Mount Option / Set: ¥16,500 (incl. 10% tax)

An optional accessory for attaching a camera mount that can fix separately sold depth cameras, etc., ordered with the main unit. The camera can be fixed at any height from the top plate up to 265mm, and the mounting angle can also be adjusted, allowing for operation at ideal camera positions and angles.

・Depth Camera Option / Set: ¥130,900 (incl. 10% tax)

An optional accessory for equipping the dolly robot with a stereo camera (RGB-D camera) capable of capturing full-color RGB images with depth information, ordered with the main unit. The camera mount included in the "Camera Mount Option" is also included in this option.

・Remote Control Option (PC not included) / Set: ¥123,200 (incl. 10% tax)

An optional accessory for enabling remote control of the dolly robot while running web conferencing software (e.g., Zoom) on the PC installed on the robot, ordered with the main unit. This option requires the PC to be purchased separately, and preparation of dedicated servers, etc., according to the included documentation is necessary.

・Remote Control Option (PC included) / Set: ¥568,700 (incl. 10% tax)

An optional accessory for enabling remote control of the dolly robot while running web conferencing software (e.g., Zoom) on the PC installed on the robot, ordered with the main unit. This option includes the PC itself, but preparation of dedicated servers, etc., according to the included documentation is necessary.

・Pan-Tilt Unit Option (Camera not included) / Set: ¥66,000 (incl. 10% tax)

An option that adds a mountable stay on the dolly robot's top plate and a camera base with movable axes for pan and tilt.

・Pan-Tilt Unit Option (Camera included) / Set: ¥180,400 (incl. 10% tax)

An option that adds a mountable stay on the dolly robot's top plate and a camera base with movable axes for pan and tilt. A compatible depth camera is included (a device for connecting the depth camera, such as the ROS PC (NUC14) option, is required separately).

・Robot Arm AMIR (Amil) 740 for Dolly / Set: ¥770,000 (incl. 10% tax)

A ROS-compatible robot arm suitable for mounting on the dolly robot. The arm itself has a payload capacity of 2kg, enabling complex and diverse applications such as grasping, lifting, and moving objects, which are difficult with the dolly robot alone (when controlling with ROS, a ROS device such as the ROS PC (NUC14) option is required separately).

・Wired Remote Control Option / Set: ¥16,500 (incl. 10% tax)

A compact wired controller that is effective in environments where radio wave emission is undesirable or when a smaller controller is needed. It has an exclusive connection with the bumper sensor.

Contact Information for Inquiries Regarding This Matter

Vstone Co., Ltd.

2-15-28 Goibashi, Nishiyodogawa-ku, Osaka-shi, Osaka 555-0012

E-mail: [email protected]

https://www.vstone.co.jp/

Vstone, Vstone, and Robot Shop are registered trademarks of Vstone Co., Ltd.

@mobi is a registered trademark of Panasonic Advanced Technology Co., Ltd. Arduino is a registered trademark of Arduino AG. Intel, Intel Core, and Intel Arc are registered trademarks or trademarks of Intel Corporation or its subsidiaries. Ubuntu is a trademark or registered trademark of Canonical Ltd. NVIDIA, the NVIDIA logo, Jetson, and NVIDIA Orin are registered trademarks or trademarks of NVIDIA Corporation in the United States and/or other countries. Zoom is a service of Zoom Video Communications, Inc., and the Zoom logo is a registered trademark of Zoom Video Communications, Inc. Bluetooth® is a registered trademark or trademark of Bluetooth SIG, Inc. USA. Raspberry Pi is a registered trademark or trademark of the Raspberry Pi Foundation. ROS is an open-source project by the Open Source Robotics Foundation, Inc. Wi-Fi is a registered trademark of the Wi-Fi Alliance.

Other product names and proper nouns mentioned are generally registered trademarks or trademarks of their respective companies.