Changjiu Xian

Papers

Total Citations

133

H-Index

About

Changjiu Xian is a researcher whose work lies at the intersection of mobile robotics, sensor networks, and energy-efficient autonomous systems. His primary contributions focus on the use of mobile robots to maintain and repair wireless sensor networks, particularly through the replacement of failed sensor nodes—a critical challenge for ensuring continuous sensing in remote or hazardous environments. His most influential paper, "Sensor replacement using mobile robots" (2007), has garnered 90 citations, establishing a foundational approach to deploying robots as mobile agents that can autonomously identify and replace defective sensors, thereby extending network lifetime without requiring all nodes to be mobile. Xian further advanced this concept in "Replacing Failed Sensor Nodes by Mobile Robots" (2006, 19 citations), which addressed cost-effective strategies for hole repair. In parallel, he explored energy conservation in autonomous robots, as seen in "Energy-Efficient Scheduling for Autonomous Mobile Robots" (2006, 20 citations), where he tackled real-time constraints like collision avoidance using stereovision, and in "Frequency and Speed Setting for Energy Conservation in Autonomous Mobile Robots" (2007, 4 citations). His work is notable for bridging practical sensor network maintenance with the energy and mobility constraints of field robots, offering scalable solutions for long-term autonomous operations.