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This study improves the horizontal directional drilling method (HDD) by using an autonomous land vehicle (ALV) with a radio directional finding (RDF) system. The ALV with an RDF system carrying a digital positioning device can locate a moving or static underground drill bit and track it. Not limited to a pre-determined track or path, the ALV system utilizes its on board RDF system instantaneously to seek and to track a moving or static drill bit. Compared to conventional systems, the system reduces the number of operators, minimizes costs, prevents accidents, and enhances the degree of automation.

Applying Radio Direction Finding System for Improvement of Horizontal Directional Drilling Method