基于FreeRTOS的嵌入式智能骑行台

Embedded intelligent riding platform based on FreeRTOS

为了解决传统的非智能骑行台功能单一,不能与骑行台客户端进行数据交互,且阻力调节不均匀,骑行体验一般等问题,设计了基于FreeRTOS实时操作系统的嵌入式智能骑行台。骑行阻力的设计方案选用磁阻式,目的在于降低噪声,提高骑行体验。硬件电路方面根据系统的功能需要设计了主控模块、电源模块、速度测算模块以及磁阻控制模块。程序设计部分包括蓝牙通信、ANT+通信、速度计算、功率拟合、休眠与唤醒以及磁阻控制等功能程序。最后,制作实验装置对系统的无线通信功能、挡位控制功能、骑行台客户端适配功能等进行测试。实验结果表明,测试效果良好,系统具有较好的实时性和较高的可靠性,满足预设的功能需求。

In order to solve the problems of the traditional non-intelligent cycling platform with single function,no data interaction with the cycling platform client,uneven resistance adjustment,general riding experience,an embedded intelligent riding platform based on FreeRTOS real-time operating system is designed.The design scheme of riding resistance selects the magnetoresistive type,which aims to reduce the noise and improve the riding experience.In terms of hardware circuit,the main control module,power supply module,speed measurement module and magnetoresistance control module are designed according to the functional needs of the system.The program design part includes Bluetooth communication,ANT+communication,speed calculation,power fitting,sleep and wake-up,and magnetoresistance control.Finally,an experimental device is made to test the wireless communication function,gear control function,and client adaptation function of the riding platform.The experimental results show that,the system has good real-time performance and high reliability,which can meet the preset functional requirements.