总线结构的模块化嵌入式实验平台设计与应用

Design and implementation of modular embedded experimental platform based on bus structure

为解决现有嵌入式教学实验平台扩展性和通用性差、仅适用于实验教学等问题,设计基于总线结构的模块化嵌入式实验平台。平台整合了物联网四层模型中的感知层和网络层硬件单元,将硬件单元按照功能模块化,提出基于CAN总线的模块化架构,并设计适用于该架构的通信协议,使平台在满足实验教学的同时,可应用于科研及实际项目。在实验教学应用中,平台训练了学生的基础技能和实践能力,培养了学生的协同创新能力、团队合作意识。在科研项目应用中,基于平台设计的模块化采集节点和网关节点经过性能测试和稳定性测试后,已投入实际使用。

A modular embedded experimental platform based on bus structure is designed to solve the problems that the existing embedded teaching experiment platform has poor scalability and versatility,and is only suitable for experimental teaching.The hardware units of the sensing layer and network layer in the four⁃layer model of the Internet of Things are integrated on the platform,and the hardware units are modularized according to their functions.The modular architecture based on CAN bus is proposed,and the communication protocol suitable for the architecture is designed,so that the platform can be applied to the scientific research and practical projects while meeting the experimental teaching requirements.In the application of experimental teaching,students′basic skills and practical abilities are trained,and students′collaborative innovation abilities and teamwork awareness are cultivated on the platform.In the application of scientific research projects,the modular acquisition nodes and gateway nodes designed based on the platform have been put into practical application after performance testing and stability testing.