具有动态感知防撞功能的婴儿学步车的设计与实现

Design and Implementation of Baby Walker with Dynamic Perception Anti-collision Function

防碰撞功能涉及到控制、算法以及硬件和软件上的实现。婴儿学步车的环境一直处在动态变化过程中,如何防止婴儿学步车与环境障碍物发生碰撞、提高识别障碍物的速度与精度是设计的难点。提出将超声波模块与高清摄像头整合为探测模块,对周围环境进行动态探测。采用STC89C52作为系统控制器,建立障碍物链表,判断障碍物运动情况,并计算动态障碍物的移动速度。选用报警模块、制动模块、电源模块,搭建具有动态感知的闭环防碰撞控制系统。介绍了防撞婴儿学步车的总体设计方案,采用模块化方法对硬件进行了选型,讨论了系统工作流程和基本算法思路,设计了4种实验工况,对婴儿学步车日常使用环境进行仿真实验。实验结果表明所设计的防碰撞婴儿学步车能够识别动静态障碍物,实现防碰撞的功能。

The anti-collision function involves the implementation of control,algorithm,hardware and software.The environment of baby walker is always in the process of dynamic change.How to prevent the baby walker from colliding with environmental obstacles and improve the speed and accuracy of identifying obstacles is the difficulty of design.It was proposed to integrate the ultrasonic module and HD camera into a detection module to dynamically detect the surrounding environment.STC89C52 was used as the system controller to establish a linked list of obstacles,judge the movement of obstacles,and calculate the moving speed of dynamic obstacles.The alarm module,braking module and power module were selected to build a closed-loop anti-collision control system with dynamic perception.The overall design scheme of the anti-collision baby walker was introduced,the hardware with the modular method was selected,the system workflow and basic algorithm ideas were discussed,four experimental conditions were designed,and the simulation experiment on the daily use environment of the baby walker was carried out.The experimental results show that the designed anti-collision baby walker can recognize dynamic and static obstacles and realize the function of anti-collision.