| 摘要 |
FIELD: physics, navigation.SUBSTANCE: invention relates to navigation means for visually handicapped persons. In the method, each of fixed radio informers installed on fixed objects and vehicle radio informers installed on vehicles transmits by radio broadcast a group of identical digital data packets containing a compressed audio file with a voice message on a fixed object or vehicle on which said fixed radio informer or vehicle informer is installed, and personal of the fixed radio informer or vehicle informer, wherein transmission/reception of information by each fixed radio informer is carried out at a fixed radio frequency, and transmission/reception of information by each vehicle informer is carried out at a fixed radio frequency, each portable user device receives the group of digital data packets over a radio link; when reception of the group of digital data packets begins, the attention of the user is attracted by a brief vibration signal.EFFECT: high accuracy of navigation when a navigation device is located at the intersection of coverage areas of radio informers.2 cl, 4 dwg |
