Architectural Lighting Interactive Design Assistant System Under Virtual Reality

In recent years,with the continuous development of computer-aided architectural design technology,more and more researchers have combined subjective architectural design and objective performance simulation tools to build a multi-functional integrated auxiliary design platform or system to facilitate the integration of the building performance simulation process into the initial stage of the plan design,reduce the cycle of the design process,and optimize the plan design process.The existing integrated design assistance system has not yet fully developed the application potential of virtual reality,and lacks a performance-oriented integrated subjective and objective design assistance system that can interact in real time,and fails to realize the real-time data transmission of interactive virtual scenes and building performance simulation software.In addition,current designers rely too much on their own experience when performing performance optimization designs with low research efficiency.In response to the above problems,this article takes architectural lighting design as an example,and develops a virtual reality-based design assistance system,including three functional modules: modeling and simulation,data transmission and interactive applications;By building data transmission interfaces between different functional modules,real-time transmission and update of data on different platforms are realized.The system also directly visualizes the results of building performance simulation in the virtual space,realizing the combination of subjective environment perception of immersive virtual environment and objective indicators of performance evaluation,and assisting designers to realize the lighting scheme design based on the combination of subjective and objective evaluation indicators.In addition,in order to further expand the applicable scenarios of the lighting design system,this article adds an adjustment function based on single-lamp regulation on the basis of the above system,which greatly improves the flexibility of the scheme design.At the same time,this paper embeds the lighting design expert system into the design assistance system,and proposes a dimension-adaptive particle swarm algorithm,which is applied to different lighting design decision-making processes,and adds the intelligent recommendation function of the scheme to the system.The algorithm can determine the adaptive adjustment strategy of the search dimension according to the global optimal value in the current search space,while optimizing the arrangement of lamps and lanterns,while reducing energy consumption as much as possible.Designers can choose to turn on the corresponding auxiliary functions according to their own needs,and obtain the lighting arrangement scheme with excellent performance in the current scene.Furthermore,the designer can optimize and adjust scheme according to the recommended results to ensure efficient and effective scheme design.Finally,this paper selects 15 architectural students to test and evaluate the lighting design assistance system that has been built,and analyze the results of the IPQ questionnaire(Virtual reality presence questionnaire)and system use feedback results.The results showed that the overall presence of the system performed well,and all 15 participants believed that the system could improve significantly the decision-making efficiency and result satisfaction of the scheme design.It shows that the system can effectively enhance the designer’s human-environment interaction experience,realize the designer’s plan optimization function from the two dimensions of subjective space experience and objective performance,improve design efficiency and enhance result satisfaction.