Scenario Modeling Method And Research Of Hospital Material Intelligent Distribution VR Syste

The emergence and development of virtual reality technology broadens the field of human-computer interaction research field,so that virtual reality and intelligent distribution system of hospital materials perfect combination.Due to the complexity of the operation of VR system for intelligent distribution of hospital materials and the lack of a comprehensive grasp of situational modeling,the system has low efficiency,high user error rate and poor interactive experience.Therefore,how to fully combine situational modeling theory in VR system of intelligent distribution of hospital materials has become an urgent problem to be solved.In this paper,the situational modeling of VR system for intelligent delivery of hospital materials was studied and the specific contents were as follows:At present,the evaluation methods of human-computer interaction in virtual reality are mainly single evaluation methods such as subjective evaluation and observation evaluation,and lack of multidimensional unified quantitative evaluation criteria,which makes it impossible to evaluate the human-computer interaction process in virtual reality quantitatively.Therefore,this paper evaluates user interaction experience through performance measurement,physiological measurement and perceptual measurement.The multidimensional quantitative evaluation method of human-computer interaction is of extensive value and significance for scenario modeling in virtual reality.Aiming at the low efficiency of using hands caused by environmental constraints in Virtual Reality Interaction(VRI),a fixed offset detection threshold estimation method for hand remapping in virtual reality was proposed to improve the efficiency of using hands.This method starts from human psychological perception and introduces psychometric function to calculate the offset detection threshold so as to improve interactive experience.First,the experiment was designed according to the theory of Two Alternative Forced Choice(2AFC).The sensory differences of subjects in the process of using different offset virtual hands to complete the target grabbing task were recorded as the evaluation criteria,and the time of completing the task was recorded at the same time.The sensory difference was calculated according to the psychometric function(Quickpsy),and the detection threshold of remapping interaction was estimated.Then,the covariance was used to determine that the direction,amplitude,and axial direction of the virtual hand offset exceeding the threshold and their interaction were significant factors affecting the performance of the touch task.If within the threshold range,the above factors would no longer affect the performance of the task.Finally,the VR(Virtual Reality)intelligent distribution system for hospital materials was taken as an example to verify the feasibility of the proposed method.The research results show that the gamepad interaction selected by the proposed multidimensional interactive experience evaluation method can help reduce the time for users to complete tasks.In addition,the appropriate offset shortens the time for users to complete touch tasks,and can improve the interaction efficiency while reducing the influence of traditional offset calculation methods on the interactive fidelity of VR.