Personal navigation device and interested point item information query and display method thereof

Abstract

The invention relates to a method for querying and displaying interested point directory and interested point item information on a personal navigation device. The method comprises: sending a search content to a first server, receiving information on interested point directories in accordance with the search content from the first server, displaying representative information on the interested point directories in accordance with the search content, sending a first query request to a second server when the interested point directories in accordance with the search content is selected, receiving interested point items under the interested point directories in accordance with the search content and displaying the information on the interested point items. The invention provides a simple interface, which can be smoothly operated between databases with different directories alone or synchronously and can make the searchable directories associated with one search content.

Description

technical field [0001] The present invention relates to a method for a personal navigation device to inquire about a point of interest (POI) item, in particular to a method for a personal navigation device to inquire about and display information on a POI directory and POI items. Background technique [0002] The personal navigation device utilizes navigation satellite signals, such as global positioning system (Global Positioning System, GPS) satellite signals, to determine the real-time position of the personal navigation device on any area covered by satellite signals on the earth. When the location information is combined with the street map, the function of navigation can be realized. Even when the user deviates from the route planned by the personal navigation device, the personal navigation device can still use the real-time location of the personal navigation device to find the current location of the user on the street map, and re-plan a route to guide the user safe...

AI Technical Summary

Problems solved by technology

[0006] Although the prior art method can transmit the POI information to the user of the personal navigation device through searching or browsing, there are still some problems in the prior art

First, users may not know what terms to enter as search terms

Second, users cannot see the complete directory tree, so they cannot know which main directory to start searching, and may not be able to determine whether the item they are looking for has a corresponding directory

Users must choose between the above two methods, but it is difficult to decide which search method is more appropriate

Although sometimes an item is listed under multiple subdirectories at the same time, this is not obvious when deciding to use the browse directory

Another problem is that item searches may extend across multiple databases, some of which may only support text searches or only support incompatible directory formats

In addition, the user search interface provided by the personal navigation device is only a small screen, so the user cannot see all the directories at once, which is very inconvenient for the user

[0007] It can be seen that the above-mentioned existing personal navigation device and the method for inquiring and displaying the information of the point of interest item obviously still have inconvenience and defects in method and use, and need to be further improved urgently.

In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general method has no suitable method to solve the above-mentioned problems. This is obviously related. The problem that the industry is eager to solve

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