Navigation apparatus foe performing voice navigation to complicated road junction and working method thereof

Abstract

The invention relates to a navigation device that can realize voice navigation to complex crossings, and a working method thereof. A map data base storage unit of the navigation device is used for storing models of each complex crossing, and a voice database storage unit is used for storing a voice database that contains a keyword database and a database of voice data address codes that consists of each address code; a group of keywords that are corresponding to each address code group represent speeches of all driving actions that are orderly implemented when driving through a corresponding complex crossing; the address code of each address code group is associated with a master serial number of the corresponding model of the complex crossing. When the navigation device implements real-time navigation according to a guidance path, a CPU unit reads the model number of the closest complex crossing in front, obtains a route for driving through the crossing according to the guidance path, and the master serial number of the passed crossing, thus displaying the crossing pattern by a display screen and simultaneously presenting indication voice by a voice output device.

Description

Navigation device capable of performing voice navigation on complex intersections and its working method technical field The invention relates to a navigation device capable of performing voice navigation on complex intersections and a working method thereof. Background technique Existing navigation devices have a user option function, so that when performing a route finding task, the navigation device can determine a guiding route from a starting point to a destination that meets the user's expectations. User options may include "major road priority", "distance priority", "no toll priority" and "highway priority", etc., from which the user can select the desired option to determine the guided route to the destination that meets the user's expectations. Voice guidance is a mandatory function of the navigation device. The voice navigation system in the prior art only has simple voice prompt functions such as "turn left" and "turn right", which are not enough for complex i...

AI Technical Summary

Problems solved by technology

The weak point of above-mentioned prior art is: can not make the driver form a whole intersection concept before entering complex intersection, the prompt voice of broadcasting can not adapt to the different situations of multiple different complex intersections, thereby helping the driver pass through various Can not be fast and accurate at complex intersections

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