用ESP32实现轮速传感器高效通信，助力道路数字孪生
Integrated Wheel Sensor Communication using ESP32 -- A Contribution towards a Digital Twin of the Road System
- 基于发布-订阅机制传输轮子传感器数据
- 实测数据丢失率仅0.1%，传输稳定可靠
- 适合智能交通与车辆状态监控系统开发
现有车载状态估计方法虽能满足多数驾驶与安全需求，但无法揭示轮胎与路面的相互作用。本文提出一种基于ESP32微控制器的轮传感器数据高效通信新方案，采用发布-订阅架构，在数据传输量上优于已有方法。在鼓式轮胎测试台上，通过多组采样频率（1 Hz至32,000 Hz）验证了该通信方案的有效性。原型系统实现约0.1%的数据丢失率，证明了通信系统的可靠性。本工作推动了实时数据采集技术发展，为优化集成轮传感器通信提供了支持。
原文摘要 · Abstract (English)
While current onboard state estimation methods are adequate for most driving and safety-related applications, they do not provide insights into the interaction between tires and road surfaces. This paper explores a novel communication concept for efficiently transmitting integrated wheel sensor data from an ESP32 microcontroller. Our proposed approach utilizes a publish-subscribe system, surpassing comparable solutions in the literature regarding data transmission volume. We tested this approach on a drum tire test rig with our prototype sensors system utilizing a diverse selection of sample frequencies between 1 Hz and 32 000 Hz to demonstrate the efficacy of our communication concept. The implemented prototype sensor showcases minimal data loss, approximately 0.1% of the sampled data, validating the reliability of our developed communication system. This work contributes to advancing real-time data acquisition, providing insights into optimizing integrated wheel sensor communication.
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