| 摘要 |
A navigation device 12 for receiving navigation data from a portable computing device 11, e.g. a smartphone, where the navigation device comprises a display 21 and at least one sensor 22, 23, 24, e.g. compass or gyroscope, configured to determine a reference direction relative to the display. Wireless communication means 25 receives data relating to a desired bearing from the portable computing device. A processing unit uses the desired bearing and reference direction and determines a desired direction based upon these values. The display indicates the desired direction. The navigation device is particularly suitable for mounting on bicycles. A mounting arrangement may be such that it can receive the navigation device in a storage orientation in which the display is covered and a display orientation where the display is readable. An elastic strap connects the mount and the navigation device and wraps around a bicycle component to attach the device to the component in the in-use configuration (Fig 11). |
