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A Coordinated Wheeled Gas Pipeline Robot Chain System Based on Visible Light Relay Communication and Illuminance
Wen Zhao1, Mitsuhiro Kamezaki2, Kento Yoshida3
1Graduate School of Creative Science and Engineering, Waseda University, Tokyo 169-8050, Japan. zhaowen@sugano.mech.waseda.ac.jp.
Sensors (Basel, Switzerland)
|May 30, 2019
Summary
Pipeline robots can now inspect further using visible light relay communication (VLRC). This new method improves data accuracy and communication stability for extended gas pipeline inspections.
Area of Science:
- Robotics
- Sensor Technology
- Communication Systems
Background:
- Gas pipeline integrity is crucial for stable supply, necessitating regular inspection.
- Current pipeline inspection robots have limited range due to cable friction or wireless signal issues.
- Previous wireless relay communication (WRC) systems faced challenges with RSSI imprecision, data errors, and signal loss.
Purpose of the Study:
- To develop an enhanced robot chain system for extended gas pipeline inspection range.
- To overcome the limitations of wireless relay communication in pipeline environments.
- To improve the precision and stability of robot communication and data transmission.
Main Methods:
- Proposed a novel approach utilizing visible light relay communication (VLRC) for robot-to-robot data transfer.
- Implemented an illuminance assessment method to ensure stable VLRC performance.
- Conducted tests on signal waveform, communication quality, and coordinated robot movement.
Main Results:
- The VLRC system demonstrated effective communication through light signal relay within the pipeline.
- The illuminance-based evaluation provided more stable communication compared to wireless methods.
- Tests confirmed extended inspection range with a reduced data error ratio and enhanced communication stability.
Conclusions:
- Visible light relay communication (VLRC) offers a viable solution for extending the inspection range of pipeline robots.
- The proposed illuminance assessment method enhances communication stability and data accuracy.
- This technology improves the efficiency and reliability of gas pipeline inspection systems.
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