Research On Human-computer Interaction Model With Parameter Constraints

Pen interaction is an interactive way in many human-computer interaction modes.The traditional pen interaction is usually carried out by the pen's two-dimensional trajectory information.This interaction not only limits the pen's input ability,but also makes the tasks that can be operated in parallel have to be operated step by step.In order to solve this problem,many studies have introduced the auxiliary input channel of the pen on the basis of the traditional pen input.However,the introduction of the pen's auxiliary input channel introduces a problem of limited parameters.At the same time,there is a need for performance prediction before the task operation.In order to solve the problem that the performance of human-computer interaction in the condition of parameter limitation is not determined and the performance prediction model in the condition of limited parameters is urgently needed.This subject will classify the parameter-constrained types.On this basis,the design task analyzes the user behavior interaction performance on different restricted types,and gives the interaction suggestions under different task types.And the parameter-limited interaction model on different restricted types is summarized.In the user behavior and interaction performance in the condition of the limited position,in order to comprehensively examine the user behavior and interaction performance,according to the different feedback conditions of the auxiliary channel,the experiment is designed to maintain the position of the pen tip,and tilting the pen to accomplish pointing task.The operation,that is,the user behavior and interaction performance research based on the inherent visual feedback.Maintaining the position of the pen tip,accomplishing pointing task by changing the pressure of the pen,that is,the user behavior and interaction performance based on the acquired visual feedback.In the research of user behavior and interaction performance based on intrinsic visual feedback,it is found that the wider the target width,the higher the completion degree of the user's completion of the operation,and the right target is easier to select than the left target.The user behavior and interaction based on the acquired visual feedback performance studies have found that small pressures are less likely to be controlled,and operations within large pressure ranges are relatively easy.In the research of user behavior and interaction performance in the condition of the limitation of channel value change,the experiment is also designed according to the different feedback conditions of the auxiliary channel:maintaining the pen tilt within a certain range to complete the trajectory task,that is,user behavior and interaction performance research in the condition of the channel value change with the intrinsic visual feedback.Maintaining the pen pressure to complete the trajectory task within a certain range,that is,the user behavior and interaction performance in the condition of the limited channel value change of the acquired visual feedback.The experimental results show that the variation of the channel value of the intrinsic visual feedback is limited.The longer and narrower the tunnel is,the longer it takes,and the pen tilt is maintained within the tolerance range of[55°,78°]to complete the trajectory task.The performance is optimal;the channel value of the acquired visual feedback is limited,and the pen pressure is maintained within the pressure tolerance interval of[511,680]to achieve the best performance of the trajectory task.Finally,the interaction models in the condition of limited location and limited channel value variation are summarized and verified.Because the experiment found that the visual feedback conditions of the auxiliary channel have no significant effect on the model,we finally conclude two restricted models,namely,the interaction model under positional constraints:MT=alog₂?A/W+1?+b.The interaction model with limited channel value variation:MT=a?A/W?+b.