UWB Solution for Tunneling Advance Measurement

Current Status and Pain Points

♦Low Operation Efficiency
At present, the measurement of underground tunneling footage mainly relies on manual tape measurement and laser pointers. Laser pointers need to be moved forward frequently, resulting in spot drift, which increases the rework rate of cross-section remeasurement.
♦Poor Data Real-Time Performance
Data transmission depends on paper ledgers or handheld terminals. The shift footage can only be entered into the dispatching system after returning to the ground, failing to achieve real-time updates.
♦Low Data Reliability
Key indicators such as temporary support, blasting progress, and bolt row spacing lack a unified coordinate system. The cross-section is affected by dust, water dripping and vibration, leading to errors in tape reading. Over-breakage and floor heaving in rock roadways are common. Inconsistent statistical calibers among shift reports, daily reports and weekly reports cause gradual accumulation of deviations in mining and excavation connection plans.

Functional Requirements
♦Data Accuracy：Realize precise measurement and real-time positioning of the tunneling face via UWB high-precision ranging, reducing human errors.
♦Environmental Adaptability：Achieve stable centimeter-level distance output under dust, water mist and non-line-of-sight conditions through UWB high-precision ranging.
♦Data Anti-falsification：UWB ranging supports real-time data return, and real-time ranging is also performed between ranging anchors. Once the mobile ranging base station is moved, the distance change information can be viewed in the background.

Solution