船舶航行姿态反映了船舶在波浪和海况下的运动状态,直接影响到船舶的操纵性能、结构强度和乘客的舒适度,受不同海况的影响,船舶航行的横摆姿态角、升沉姿态位移受到限制,姿态估计效果不显著。因此,文章提出基于三维虚拟技术的船舶航行姿态估计方法。运用三维虚拟技术中的3D Studio Max软件经过船舶多角度图像与CAD图纸导入、创建场景、建立船舶基础形状和船体曲面等多个步骤,建立船舶三维虚拟模型,结合Unity3D提供的水资源包,构建船舶航行的海洋场景,通过船舶虚拟现实仿真运动方程实现船舶在不同海况环境中航行虚拟仿真,在虚拟仿真过程中运用船舶摇摆运动数学模型、船舶升沉姿态数学模型,实现船舶航行姿态估计。实验表明:该方法可实现船舶三维虚拟模型构建,并可在不同海况时,实现船舶航行横摆姿态角、升沉姿态位移进行估计,其应用效果较为显著。
国家统计局数据显示,2022年中国60岁及以上老年人口总数预计达到2.79亿人,预计到2035年中国60岁及以上老年人口数将达到4.37亿人、2050年达到5.21亿人。随着人口老龄化的不断加剧,老龄化社会面临养老、医疗、生活质量和精神需求等多方面的挑战。虚拟技术作为一种新兴技术手段,以其独特的优势在老龄化社会中展现出广阔的应用前景。基于此,本文探讨了虚拟技术在老年人健康照护、认知与情感支持、居家安全等方面的应用,并提出了创新路径,包括技术革新、服务模式转型以及政策与社会支持,以期促进深入理解虚拟技术在老龄化社会中的潜力和价值,推动老龄化社会的可持续发展和提升老年人的生活质量。According to the data of the National Bureau of Statistics, the total number of elderly people aged 60 and above in China is expected to reach 279 million in 2022, and the number of elderly people aged 60 and above in China is expected to reach 437 million by 2035 and 521 million in 2050. With the increasing aging of the population, the aging society faces many challenges, such as old-age care, medical care, quality of life and spiritual needs. As an emerging technological means, virtual technology shows a broad application prospect in an aging society with its unique advantages. Based on this, this article explores the application of virtual technology in health care for the elderly, cognitive and emotional support, home safety, etc., and puts forward innovative paths, including technological innovation, service model transformation, and policy and social support, in order to promote an in-depth understanding of the potential and value of virtual technology in an aging society, and promote the sustainable development of an aging society and improve the quality of life of the elderly.
