Tracking/Locating System

The Tracking/Locating System is a critical subsystem of a trenchless drilling machine, used in horizontal directional drilling (HDD) operations. It continuously tracks the drill head's underground position, depth, and orientation, ensuring the drill follows the planned bore path with precision. By avoiding obstacles and maintaining required clearances from existing utilities, it enhances safety and efficiency on the job site. The system typically employs a combination of technologies: a transmitter (sonde) mounted in the drill head emits electromagnetic signals, which are received by a handheld or cart-based surface locator. The locator calculates the drill head's depth, left/right position, and orientation (pitch and roll) relative to the surface, displaying this data in real-time for the operator to make steering corrections. The system is designed for rugged underground use, with an operating temperature range of -20 to 60 °C and ingress protection rated IP67–IP68 per IEC 60529. It operates at depths up to 30 m, with positioning accuracy of ±0.1 m. The transmitter operates in the 12–24 kHz frequency range, and the system requires a minimum signal strength of ≥100 dBm for reliable detection. Power supply is 9–36 V DC, with low power consumption of ≤5 W for battery operation. Communication interfaces include RS485 and Bluetooth, offering wired and wireless options. The system weighs between 2.5 and 5.0 kg, depending on configuration, and has compact dimensions of 200×150×80 mm (L×W×H). Battery life is at least 8 hours of continuous operation. Materials include electronic components (PCBs, sensors), plastic/polymer housing, and stainless steel fasteners. This directory entry provides reference values; verify model-specific specifications and standards with the legal manufacturer or supplier before procurement.

A transmitter (sonde) in the drill head emits electromagnetic signals. A surface locator receives these signals and calculates depth, left/right position, and orientation (pitch and roll) relative to the surface. The data is displayed in real-time, allowing the operator to make steering corrections to keep the drill on the planned bore path.