Multi-modal perception positioning model and system for high-risk production environment

The invention relates to a multi-modal perception positioning system for a high-risk production environment, and the system comprises at least one positioning terminal which is worn on a positioning target and carries out the multi-modal perception positioning through employing at least one positioning technology, thereby obtaining the current position information of the positioning target in thehigh-risk production environment; a monitoring terminal which is in communication connection with the positioning terminal so as to remotely monitor the current position of the positioning target, andis characterized in that the monitoring terminal comprises a track similarity calculation module, a perception model establishment module and a map construction module, so that the positioning terminal can selectively wake up at least one positioning technology for performing multi-modal sensing and posiitoning in a beacon-free environment based on one of track similarity data, an environment sensing model and a positioni