CN202204520U

CN202204520U - Handholding type GPS-based electronic view map extensible device

Info

Publication number: CN202204520U
Application number: CN2011200246592U
Authority: CN
Inventors: 张凯; 郑志红
Original assignee: Nanjing University of Information Science and Technology
Current assignee: Nanjing University of Information Science and Technology
Priority date: 2011-01-25
Filing date: 2011-01-25
Publication date: 2012-04-25
Anticipated expiration: 2021-01-25

Abstract

The utility model discloses a handholding type GPS-based electronic view map extensible device, which comprises a GPS module, an image drawing module, a touch screen module, an information database and a central processing unit. The device can extend the local region of the original map by introducing local map, so that original map which cannot be detailed enough is more in detail. The device can determine whether the current position detected based on GPS is in the range of the local region map, if so, displaying the local region map, if not so, consecutively navigating on original map; the location and introduced detailed map can be searched as required by inputting the plane name and the longitudinal and latitude coordinates on a touch screen of the device; a drawing tool in the device can be utilized to draw the action track on original map.

Description

A kind of hand-held is based on the digital navigation map expandable device of GPS

Technical field

The utility model is the digital navigation map expandable device of a kind of hand-held based on GPS, is used to realize the regional area map expansion of existing navigation map.

Background technology

The digital navigation map of being adorned on the current various GPS navigation appearance is because various restrictions can not have detailed road guide to some zonules, such as the zonule of some sight spots, park and campus and so on.These have only place name to show on navigation map and can inquire relevant information, and inner road does not but have detailed demonstration on electronic chart.If there is not road guide, this still has very big deficient function for getting into these regional strangers.All there are electronic chart in present most of sight spot, park and university; On network, be easy to search; These electronic charts generally all are to draw according to certain longitude and latitude scope, and for example the longitude scope of XX university map region is east longitude 118 .47'10"To 11847'45", latitude scope is a north latitude 3203'15"To 3203‘48“。For the zone that does not have highway, use digital navigation map get into should the zone just as having entered into a slice blind area, few of basically effect.Current navigating instrument can't carry out map to the little position on the digital navigation map and add.A kind of hand-held of the utility model introduction can address the above problem based on the digital navigation map expandable device of GPS effectively.

The utility model content

The utility model purpose is to the defective that prior art exists the digital navigation map expandable device of a kind of hand-held based on GPS to be provided.

The utility model adopts following technical scheme for realizing above-mentioned purpose:

A kind of hand-held of the utility model comprises based on the digital navigation map expandable device of GPS:

The GPS module in order to receiving user's current location, and is sent to central processing unit with current position signal;

Image rendering module, this module have two major functions, and the first, image overlay is added to detailed regional area map on the existing navigation map by its longitude and latitude scope; The second, regularly user's current location is carried out punctuate according to user's mode of taking action, user's movement track is exactly the gauge point drawing of GPS;

Touch screen module, the interactive mode that is used for user and device is used, user's information that input need be retrieved on touch-screen as required; Simultaneously touch-screen provides the demonstration of map and the picture and text in each place, the demonstration of video information for the user;

Information database is a place name mark database, and corresponding these three data item that all have of each place name are longitude and latitude data item, detail map item, related data item;

Central processing unit is used to judge whether user's position arrives in the scope of predetermined detail map, if then access detailed regional area map immediately; Simultaneously; Search the particular location of detail map according to place name and longitude and latitude.

Said image processing module is added in the corresponding place name zone of former navigation map by its longitude and latitude scope to the regional area electronic chart that imports; And need amplify and dwindle its local map region by the user.

Said image processing module to the regional area map that imports through scan mode, is added in the corresponding region of former navigation map by its place name and longitude and latitude scope, realizes that through amplifying regional area navigates.

Said image processing module just can select the action mode regularly punctuate to carry out in the current position of user by the user on the map of former resolution, at last user's movement track point Delete All is perhaps preserved.

The utility model can be realized the effective expansion to existing navigation map after importing specific cell territory detail maps such as park, university.

Description of drawings

Fig. 1 is a system architecture diagram;

Fig. 2 is the implementation step figure of regional area navigation;

Fig. 3 is the functional flow diagram of embodiment 1;

Fig. 4 is the functional flow diagram of embodiment 2.

Embodiment

Through specific embodiment the utility model is explained further details below

As shown in Figure 1, the utility model hand-held is characterized in that comprising based on the digital navigation map expandable device of GPS:

GPS module 140 in order to receiving user's current location, and is sent to central processing unit 150 with current position signal;

Image rendering module 130, this module have two major functions, and the first, image overlay is added to detailed regional area map on the existing navigation map by its longitude and latitude scope; The second, regularly user's current location is carried out punctuate according to user's mode of taking action, user's movement track is exactly the gauge point drawing of GPS;

Touch screen module 110, the interactive mode that is used for user and device is used, user's information that input need be retrieved on touch-screen as required; Simultaneously touch-screen provides the demonstration of map and the picture and text in each place, the demonstration of video information for the user;

Information database 120 is place name mark databases, and corresponding these three data item that all have of each place name are longitude and latitude data item, detail map item, related data item;

Central processing unit 150 is used to judge whether user's position arrives in the scope of predetermined detail map, if then access detailed regional area map immediately; Simultaneously; Search the particular location of detail map according to place name and longitude and latitude.

As shown in Figure 2, the utility model realizes through following process, and at first, this device all can be searched for the map place name mark database of being stored when any width of cloth navigation map of storage.After searching mark database it is carried out the database expansion, add data item again two or three, promptly longitude and latitude data item, detail map item, related data item carry out the data expansion to map various places name or zone after this helps.For the regional area map of next stage, can set up the geographical name data bank of next stage, its data item and first database the same.

Secondly, the user can add the regional area map by place name and longitude and latitude scope as required in the detail map item, such as the detailed electronic chart of XX university.Be called XX university, the longitude and latitude scope is east longitude 118 .47'10"To 11847'45", latitude scope is a north latitude 3203'15"To 3203‘48“?。Automatic this detail map to interpolation of this device meeting is set up geographical name data bank, its longitude and latitude scope of corresponding stored under geographical name data bank.As long as the user utilize place name or latitude and longitude value this zone of inquiry or should the zone in the place, then access this detail map.Perhaps when the position of user on navigation map gets into should the zone, then eject this regional detail map and navigate.Navigation implementation in this university zone is: at first the regional area map is superposeed at former navigation map by its longitude and latitude scope, former navigation map is at the bottom, and the regional area map is at its last layer, and navigation direction is marked on the superiors and shows.Overlapping portion can amplify as required, dwindle.When navigation direction is marked on former navigation map white space and moves, also be on the regional area map, to move in fact, so just reached the navigation purpose on the regional area map.

The user can also utilize the tracing point record button in this device left side, opens the tracing point writing function, before the process of record user movement track, needs the user to select oneself action mode, such as walking, driving etc.If walking, the then once location point of taking action of each record half an hour.If driving is then every at a distance from the once location point of taking action of half a minute record.And in real time these location points are marked with the red-label point.Select on demand at last whether to preserve, so that use this tracing point to navigate during next time through this zone.

As shown in Figure 3, embodiment 1, and the utility model has been realized the local expansion to existing navigation map

XX city city navigation map is housed in this handheld apparatus at present; The overall detail map that also has this city XX university simultaneously, before hand-held this device of user got into XX university, this device was in downtown roads navigational state 210 always; During this moment, device received whenever that GPS module 140 sends new location point signal; It is just sent it into central processing unit 150 and handles 220, judges whether to belong in the regional extent of XX university 230, if then do not proceed road guide; If the overall detail map that then accesses this university immediately shows 240 on this device touch-screen.This moment, this device navigated in this campus, if the user needs, " jumping out " option that also can the pointing device lower right corner then can be jumped out the campus image immediately, gets back to the city navigation interface.If do not need, then still rest on the map of campus and do not show, when whenever receiving a new position signalling, GPS module 140 still sends it to central processing unit 150 this moment.Central processing unit 150 constantly judges whether to walk out the regional extent 250 of XX university.If no, staying on shows on the map of campus, if then jump back to city navigation interface 260 automatically.

This device can be realized the effective expansion to existing navigation map after importing specific cell territory detail maps such as park, university.

As shown in Figure 4, embodiment 2, and the utility model has been realized the road information record for strange zone

The user carries this device and comes a certain strange zone, in this zone, does not have highway, has only some hill paths, trail and some rugged paths.This device is in navigational state 310, but the trend that on navigation map, can't check road has only shown the blank out zone.Can press " recording track " the button in this device left side this moment; Occur whether 320 inquiries of recording track point are pointed out; Select " being " then to get into the tracing point recording status; Occur " walking " and " driving " option simultaneously, select " walking ", then whenever come out at a distance from current location point of 30 minutes records and with red some mark.If select " driving " then every at a distance from current location point 330 of half a minute record.Current location at the white space of navigation map marks 340 with the red-label point, and the movement track point that moves on and then continue the mark user is selected " stopping " option up to the user, stops record this moment.Occur immediately whether preserving the tracing point image so that use 350. next time, then red tracing point preserved if select " being ", next entering should the zone after, the tracing point of preserving before can showing on the navigation map.

This function can be used for exploring and military field by subject training such as figure advance.

Claims

1. a hand-held is characterized in that comprising based on the digital navigation map expandable device of GPS:

GPS module (140) in order to receiving user's current location, and is sent to central processing unit (150) with current position signal;

Image rendering module (130), this module have two major functions, and the first, image overlay is added to detailed regional area map on the existing navigation map by its longitude and latitude scope; The second, regularly user's current location is carried out punctuate according to user's mode of taking action, user's movement track is exactly the gauge point drawing of GPS;

Touch screen module (110), the interactive mode that is used for user and device is used, user's information that input need be retrieved on touch-screen as required; Simultaneously touch-screen provides the demonstration of map and the picture and text in each place, the demonstration of video information for the user;

Information database (120) is a place name mark database, and corresponding these three data item that all have of each place name are longitude and latitude data item, detail map item, related data item;

Central processing unit (150) is used to judge whether user's position arrives in the scope of predetermined detail map, if then access detailed regional area map immediately; Simultaneously; Search the particular location of detail map according to place name and longitude and latitude.