In order to study the wearing pattern of the ore-pass wall

and ensure the continuously safe and stable production of the ore-pass

it is necessary to monitor the ore-pass wall. The diameter of the ore-pass is large. It is dusty

damp and lightless in the ore-pass

and there are unstable stones on the ore-pass wall. To safely monitor the ore-pass wall

a vertical ore-pass panoramic scanning imaging device is developed. The device realizes full-face high-resolution and seamless scanning of ore-pass wall with 4 cameras for target tracking

Gigabit Ethernet for data transmitting

high illumination of 4 LEDs for lighting

rotary encoder for depth locating

and combination cable and self-lock capstan for lifting. Screening and stitching the scanned images

the full-face images of the ore-pass come out. The device is applied to a monitoring experiment of the ore-pass wall at a mine. The image data of the experiment visually and clearly reflect the damage degree of the ore-pass wall. That is the basis to study the wearing pattern

and to design and fulfill the scheme of maintaining and repairing ore-pass. Experimental result shows that the device is suit for monitoring complex vertical ore-passes wall.