Patent ID: 11879327
Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A system of transient electromagnetic advanced detection, comprising:
a detection host, an electromagnetic signal transmitter, a probe, and a communication device; wherein,
the electromagnetic signal transmitter, connected to the detection host and arranged at one end of a drill rod away from a drill bit, is configured to emit a transient electromagnetic signal in accordance with a detection control signal from the detection host;
the probe, arranged inside another end of the drill rod and close to the drill bit, is configured to receive a secondary magnetic signal excited by the transient electromagnetic signal via surrounding rocks, generate a drilling trajectory based on positions of the probe, and send the secondary magnetic signal and the drilling trajectory to the detection host via the communication device;
the detection host is configured to determine a three-dimensional electromagnetic signal intensity of each coordinate point of a plurality of coordinate points according to the secondary magnetic signal and the drilling trajectory, and determine a position of a harmful geological body in a borehole according to the three-dimensional electromagnetic signal intensity of said each coordinate point of the plurality of coordinate points; and
the communication device is configured to establish a communicative connection between the detection host and the probe.