Abstract: This article conducts a comprehensive study and analysis of ultra wideband wireless carrier communication technology (UWB) and two positioning algorithms of TDOA and TOF. The basic point detection source is deployed on the fully mechanized mining face, and the measured point emission source is deployed on the workers and large equipment of the fully mechanized mining face. The measured point emission source can logically control the electro-hydraulic control system of large equipment by calculating the distance between the detection source of the measurement base point and the emission source of the measured point to achieve proximity monitoring and linkage locking. Based on this, this article proposes the overall design scheme of the linkage locking warning system for fully mechanized mining faces; this scheme is also applicable to the proximity monitoring and linkage locking of other large equipment in fully mechanized mining faces to reduce the risk of personnel being accidentally injured by large equipment such as hydraulic supports, coal mining machines, and tunneling machines.