Vr-based standardized training system for multi-person online cooperated first-aid nursing of trauma

A virtual reality (VR) based standardized training system for multi-person online cooperative trauma emergency nursing, wherein the system comprises:

• a teacher-side terminal device, which is used for performing task configuration processing on a standardized training task for multi-person online cooperative trauma emergency nursing, wherein configuration content of the task configuration processing comprises:
• creating a training, configuring a training program, pairing devices, checking a training progress, providing a view from a student perspective, and controlling the training;
• a management-side server device, which is used for configuring a VR environment of the standardized training task for multi-person online cooperative trauma emergency nursing for student-side VR devices according to the configuration content of the task configuration processing performed by the teacher-side terminal device;
• the student-side VR devices, which are used for downloading VR resources from the management-side server device according to the configuration content of the task configuration processing, and starting a standardized training for multi-person online cooperative trauma emergency nursing after a scenario is initialized and a training scenario is introduced, wherein the VR resources comprise scenarios, props, roles, and tasks;
• a plurality of the student-side VR devices constitute a small local area network environment through an ad-hoc network, and carry out data synchronization and transmission in the VR environment to realize real-time network synchronization of multi-person operation;
• real-time broadcast synchronization is specifically employed as the network synchronization;
• the real-time broadcast synchronization comprises the following processing content:
• sending, by a first student-side VR device of the student-side VR devices, position and rotation information of a student role to other student-side VR devices in a form of broadcasting at a frequency of 60 to 120 times per second;
• predicting, by the other student-side VR devices, current position, speed and acceleration of the student role of the first student-side VR device according to the position and rotation information and received at the frequency, and then predicting, by the other student-side VR devices, a rotation speed and a rotational acceleration to simulate the student role of the first student-side VR device.