Human Performance Analysis of Processes for Retrieving Beidou Satellite Navigation System During Breakdown

Area of Science:

• Satellite Navigation Systems
• Human-Computer Interaction
• Operations Management

Background:

• Satellite navigation systems (e.g., Beidou) are highly automated but rely on human operators for critical functions.
• Equipment failures necessitate human intervention for system recovery and continued operation.
• Understanding human factors in failure recovery is vital for system reliability.

Purpose of the Study:

• To analyze the factors influencing fault recovery time in the Beidou satellite navigation system.
• To identify key predictors of recovery duration from equipment failures.
• To provide insights for improving operational efficiency and team performance.

Main Methods:

• Analysis of 180 equipment failure incidents from Beidou ground control center log files.
• Extraction of failure details, recovery times, and team demographics.
• Transformation of data into cognitive task complexity, time of day, shift handover, and team skill composition.
• Multiple regression analysis to determine significant predictors of recovery time.

Main Results:

• Task complexity and shift handover periods were identified as significant predictors of fault recovery time.
• Recovery times were longer during specific hours (midnight to 4 a.m.).
• Team skill composition, particularly the adeptness of the most skilled member, influenced fault handling efficiency.

Conclusions:

• Operational efficiency in satellite navigation systems is influenced by task complexity and shift management.
• Optimizing team skill allocation and considering time-of-day effects can improve fault recovery.
• Findings offer practical implications for enhancing the resilience and performance of ground control operations.