基于华为云的坐具多点融合感知评价系统  

Huawei Cloud-based multi-point fusion sensory evaluation system for sitting devices

作　　者：余嘉乐 杨梦成 童锴 顾颜婷 刘云飞[1] 徐锋[1] YU Jiale;YANG Mengcheng;TONG Kai;GU Yanting;LIU Yunfei;XU Feng(College of Information Science and Technology,Nanjing Forestry University,Nanjing 210037,China;College of Furnishings and Industrial Design,Nanjing Forestry University,Nanjing 210037,China)

机构地区：[1]南京林业大学信息科学技术学院,南京210037 [2]南京林业大学家居与工业设计学院,南京210037

出　　处：《林业工程学报》2025年第2期187-195,共9页Journal of Forestry Engineering

基　　金：国家自然科学基金(32171788);2022年大学生实践创新训练计划省级重点项目(202210298039Z)。

摘　　要：沙发等坐具的力学性能及表面材料的温感特性对坐具的舒适度和人体坐姿具有重要影响。因缺乏专业的便携式坐具多位点数据采集与舒适度评测系统,致使对沙发等坐具舒适度评价及坐姿检测过程费时费力。基于此,设计了一套以STM32为主控的集成华为云平台物联网技术的坐具多点融合感知评价系统。系统由软、硬件两部分组成:硬件系统以STM32为主控制器,主要包含电源管理模块、数据采集与处理模块、通信模块等,以实现整个系统的电源分配、坐垫和靠背多位点温湿度和应力数据的采集与处理,通过Wi-Fi或2.4G无线模块将数据分别发送至华为云平台和电脑端上位机等;软件部分包含云端、手机端和本地上位机端。华为云平台将接收的数据实时流转至云端数据库,并提供云API供微信小程序调用以实现双向通信;上位机完成数据的实时动态显示、坐姿检测与预警和舒适度评价等;软件系统还包括网页端,以获取云数据库存储的历史数据。实测结果表明,系统能快捷准确地获取多点温湿度及压力数据,并动态显示当前的测试状况;测试数据能够较准确反映坐垫材料的物理及力学性能,同时舒适度评价和坐姿检测算法能有效地评价当前人体舒适度和坐姿状态,其平均准确率分别为77%和80%。系统具有稳定性高、实时性强、成本低廉、便携可靠等优点,可为沙发等坐垫新材料的物理特性评测及舒适度评价提供解决方案。The mechanical properties of sofas and the temperature characteristics of surface materials have important influence on the comfort of sofas and human sitting posture.Due to the lack of a professional portable seating multi-point data acquisition and comfort evaluation system,evaluating the comfort of sofas and other seating devices and detecting the sitting posture is time-consuming and labor-intensive.Based on this,a multi-point fusion sensing and evaluation system for seating furniture with STM32 as the main controller and a Huawei Cloud platform integrated with Internet of Things(IoT)technology was designed.The system consisted of two parts:software and hardware.The hardware system,with STM32 as the main controller,primarily contained the power management module,data acquisition and processing module,communication module,etc.These components enabled the power distribution for the entire system,as well as the acquisition,and processing of temperature,humidity and stress data from multiple points on the cushions and backrests.The data was then sent to the Huawei Cloud platform and the computer-based host computer,respectively,via Wi-Fi or 2.4G wireless communication.The software part included cloud,mobile phone,and local host computer.The Huawei Cloud platform streamed the received data to the cloud database in real-time and provided cloud APIs for the WeChat App to call to realize two-way communication.The host computer completed the real-time dynamic display of the collected data,sitting posture detection and early warning,and comfort evaluation,etc.The software system also included a web page to obtain the historical data stored in the cloud database.The measured results showed that the system could quickly and accurately acquire multi-point temperature,humidity,and pressure data,and dynamically display the current test conditions;the test data could more accurately reflect the physical and mechanical properties of the cushion material,while the comfort evaluation and posture detection algorithms could effec

关 键 词：坐具 感知评测系统 舒适度评价 华为云 坐姿检测 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]