Adaptive Wireless Interface Selection Based on Wireless Characteristics for Indoor Monitoring with Autonomous Mobile Robots

In modern society, where labor shortages are becoming increasingly severe, there is a growing demand for efficient monitoring and inspection operations that can reduce the need for human labor. As a result, autonomous robotic systems have gained significant attention, with many companies and local governments actively conducting experiments and trials. However, relying on wireless communication for robot operations presents challenges in terms of real-time performance and communication stability, due to limitations in communication range and bandwidth. In this study, we utilize wireless LAN standards operating across three frequency bands-920 MHz, 2.4 GHz, and 5 GHz-to deploy autonomous mobile robots. Based on throughput and RSSI measurements, we propose a robot monitoring system that ensures efficient and reliable data transmission by dynamically switching wireless interface and optimizing video methods.