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A real-time field bus architecture for multi-smart-motor servo system
Zhichao Huang1, Song Qiu2, Bangji Wang1
1School of Physical Science and Technology, Southwest Jiaotong University, Chengdu, 610031, China.
Scientific Reports
|February 16, 2024
Summary
This study introduces a novel Multi-Motor Bus (MMB) architecture for upgrading multi-motor servo systems (MMSS) to multi-smart-motor servo systems (MSMSS). The MMB architecture enhances communication reliability and synchronization for precise motor control in industrial applications.
Area of Science:
- Electro-mechanical systems
- Robotics and automation
- Industrial control systems
Background:
- Multi-motor servo systems (MMSS) are crucial in applications like electric vehicles and robotics.
- Scaling MMSS to thousands of motors presents significant communication and synchronization challenges.
- Ensuring reliable communication is vital for the performance and precision of large-scale MMSS.
Purpose of the Study:
- To design a novel communication architecture for upgrading MMSS to multi-smart-motor servo systems (MSMSS).
- To address the challenges of communication performance and reliability in large-scale electro-mechanical systems.
- To validate the proposed system's feasibility and potential for industrial applications.
Main Methods:
- Development of a lightweight and stable Multi-Motor Bus (MMB) architecture.
- Integration of Control Area Network (CAN) and inter-integrated circuit (I2C) for real-time communication.
- Implementation of smart servo motors (SSM) within the MSMSS framework.
- Conducting serial experiments to evaluate command transmission time, jitters, and rotation consistency.
Main Results:
- The MMB architecture effectively supports real-time communication between SSM units and a central computer.
- Demonstrated synchronization of command transmission across multiple SSMs, ensuring motor consistency.
- Experimental analysis confirmed the system's performance in terms of transmission time, jitters, and rotation consistency.
Conclusions:
- The proposed Multi-Motor Bus architecture provides a robust solution for enhancing MMSS.
- The MSMSS, utilizing the MMB architecture, shows significant potential for reliable and synchronized motor control.
- The system's performance and reliability characteristics indicate its feasibility for industrial adoption.
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