Prescription-driven VR Rehabilitation Environment Configuration And Training Assessment Method

In the past two or three decades,stroke has become a major disease that seriously jeopardizes the health of Chinese residents.The motor dysfunction caused by the disease has brought a heavy burden on patients,their families and society.After the onset of stroke,scientific rehabilitation can restore the patient's motor function to normal levels.Bringing robotics technology and VR technology into the field of rehabilitation medicine can meet the basic training needs of patients.However,the difficulties are how to customize each patient's rehabilitation program and how to make an accurate assessment of patient training.Resolving these two problems can allow the patient to be free from restrictions on the number of locations and rehabilitation therapists at the time of rehabilitation.After the doctor prescribes an exercise prescription,the patient can be trained as long as there has a corresponding upper limb rehabilitation device.Therefore,research on the subject has practical significance.The dissertation designed the VR upper limb rehabilitation training system based on the upper limb rehabilitation training equipment.In this dissertation,the therapist's treatment prescription is converted into a computer language and a virtual scene is dynamically configured,and an evaluation model suitable for a rehabilitation training system is proposed.The main contents of the thesis are as follows:Rehabilitation training prescription design.First,study the traditional artificial upper limb rehabilitation training and treatment operations.Then,the tra ditional rehabilitation training action is split,and the trainable movements summarized by the rehabilitation training equipment are combined after splitting.Finally,this dissertation proposes a virtual training function plan,and then design a therapeutic exercise prescription that meets the needs of upper-limb rehabilitation training.The method of mapping exercise prescription and virtual training environment.Translate therapeutic exercise prescriptions into computer language and design correspondin g data structures.After in-depth study of virtual reality technology,this dissertation parametrizes the virtual scene environment,and plans the virtual upper limb rehabilitation training task with the task parameters.Then the transformation of the dynamic elements of the therapeutic exercise prescription and scene environment is achieved.So that the patient can train according to the prescribed exercise prescription prescribed by the rehabilitation therapist and receive targeted treatment.Establishment of evaluation model for upper limb rehabilitation training.This dissertation combines AHP and fuzzy comprehensive assessment methods to evaluate patients' upper limb rehabilitation training.According to the training content and characteristics in the upper body rehabilitation training system,a more complete evaluation index system for patient training level is established by using the analytic hierarchy process,and then the weight of evaluation indicators are calculated.And then the membership function is defined according to the characteristics of each evaluation index.Finally,an evaluation and calculation model is established by using a fuzzy comprehensive mathematical evaluation method.Design of virtual rehabilitation training simulation system for upper limb.This dissertation,we design and develop an upper limb virtual rehabilitation training simulation system that can be dynamically configured.The system is developed using C# language on Unity3 D.And it is divided into a virtual environment configuration module,a virtual training module,and a training result delivery module.Through this simulation system,the prescription of upper limb rehabilitation training is realized and preparation for training evaluation is made.