提供天气路况信息一款名为“哥本哈根之轮”的自行车方向盘以智能、应变和优雅等特点,开启了自行车2.0时代(图1)。“哥本哈根之轮”的设计者来自美国,它的轴心有一个红色圆形箱子,里面安装了48 V锂离子电池、350 W轮毂电机和传感器(图2)。此外,它还配有蓝牙装置和智能车锁等。方向盘的蓝牙功能可以与骑车人的智能手机连接,对骑车者每次蹬车所使用的力量、当时的车速、行驶里程、行驶方向、二氧化碳和氮氧化合物浓度、噪声大小、温度 Providing Weather Information on the Road A bike named ’The Wheel of Copenhagen’ opened the bike 2.0 era with smart, responsive and elegant features (Figure 1). “The Wheel of Copenhagen ” is from the United States. Its axis has a red round box with a 48 V lithium-ion battery, a 350 W wheel motor, and a sensor (Figure 2). In addition, it is equipped with Bluetooth devices and smart car locks and so on. The Bluetooth function of the steering wheel can connect with the rider’s smart phone, the power used by each rider to pedal, the current speed, mileage, driving direction, carbon dioxide and nitrogen oxides concentration, noise level, temperature