DE102008036687B4 - Method for transmitting a partial route and navigation device for carrying out the method - Google Patents

Abstract

Method for transmitting a partial route (4) of a route (3) created with a navigation device (1) for preferably satellite-based electronic navigation to a multimedia playback device (2) without a position-determining device by means of an interface (105), the method comprising the following steps:
a) creating a route (3) by means of the navigation device (1) with at least two location points (10 - 17), wherein in each case a location point (10 - 17) an instruction (20) is created;
b) selecting the partial route (4), the partial route (4) comprising at least two location points (10-17) and the associated instructions (20);
c) creating a directory (70, 70 ') by the navigation device (1), wherein in the file directory (70, 70') successively sorted to each to the partial route (4) associated location point (15 - 17) an empty file (75 - 77 ) is created with title, but without multimedia content, and the title each contains a text message (3510) with a shortened content of the statement belonging to the location (20);
d) transmitting the directory to the multimedia player (2) by means of the interface (105) and storing the file directory (70, 70 ') in the multimedia player;
e) Consecutive representation of the titles of the files (75-77) of the directory (70) in a display (202) of the multimedia player (2).

Description

The invention relates to a method for transmitting a partial route of a route created with a navigation device for preferably satellite-based electronic navigation on a multimedia device without device for determining position by means of an interface as described in claim 1 and a navigation device and a system for performing the method.

Navigation systems are now part of the inventory of a variety of vehicles and are both solid and portable arranged in the vehicle. Here, by means of the navigation system, which often includes a navigation device for satellite-based electronic navigation, creates a route that leads from a first, often the current location to a second location, the so-called destination. The route from the first location to the destination includes a plurality of different location points at which an intervention of the driver, often in the form of a change in direction, is necessary. Within the navigation device, when creating a route, a list of different location points is created and the location points are each provided with an instruction.

The instructions associated with a location point are broken down into a plurality of elements. Here are first text elements, audio elements, graphic symbols and map elements to call. "Text Elements" means information represented solely by ASCII code, "audio elements" only audible information, "graphic symbols" symbols such as arrows to indicate direction changes, and "map elements" to indicate the position of the vehicle on a two-dimensional or three-dimensional map. The individual elements, which are associated with a location point, can in preparatory elements, which are issued before the intervention of the driver by the navigation device in nachbereitende elements, which are provided after an intervention by the driver by the navigation system and often preparatory measures and Information on the next location point include, and in point information, which should cause a direct acting at this location or at that time acting of the driver, are divided.

Portable navigation devices are also known in the art. This concerns on the one hand exclusive navigation devices as well as on the other navigation devices, which are installed for example in mobile telephones or personal digital assistants. With those devices, it is possible, even without the vehicle, z. B. on foot, a route to a destination point to run.

Often, you want to reach a destination that is not directly accessible by car, or can not find a parking space at the destination, so that the car is parked several streets away from the actual destination. With portable devices with their own position determination, the way to the actual destination is easily detected.

Often, however, no such device is available. This is because many navigation devices are permanently installed in the vehicle or the driver does not want to carry a portable navigation device around with him. Often, however, the vehicle owner is in the possession of a multimedia playback device such as an Mp3 player, but which does not have its own device for position determination and no interface to a navigation software, so that navigation with this device, which is very light and often constantly carried, not possible.

From the EP 1 304 548 A2 It is known to transmit navigation information from a navigation system installed in a motor vehicle wirelessly to an external, portable device, wherein the transmitted information includes map information.

From the DE 602 09 823 T2 a routing system is known in which data from a wireless first terminal is sent to a routing server, the routing server assembles route information comprising the received data of the first terminal and the routing server sends the route information to a wireless second terminal using the route.

Object of the present invention is to provide a method with which a partial route, for example, from a parking space of a vehicle to a desired end position, the route was created by means of a navigation device for satellite-based electronic navigation, saving space and quickly to a multimedia playback device without its own device can be transmitted to determine the position.

The object is achieved by a method having the features of claim 1.

With the aid of the method according to the invention, it is possible in the simplest manner to transmit a route description in the form of text messages from the current location, ie a location point of a previously calculated route, to a destination on a multimedia playback device without its own device for position determination. In this case, after selecting the partial route to be transmitted to the multimedia display device, which comprises at least two location points and the associated instructions, a file directory is created, wherein the file directory is sorted sequentially a file with title is created for each of the location points belonging to the partial route and the title in each case contains a text message with a shortened or reduced content of the statement belonging to the location point.

Since the display of the title is possible on any displayed multimedia display device, the data structure held in the file directory can be output by the multimedia player, thus replacing, for example, hand-written directions from the current location to the destination which are manually transmitted from the instructions displayed on the navigation device would. The shortened content of the statement associated with the location initially dispenses in particular with audio elements, graphic symbols or map elements. In this case, however, the text message does not have to consist of the same text elements as shown in the navigation device, but can also, but only in text form, shorten the content of an audio message. In this case, for example, temporal information, which are not necessary when reading and comparing with the current location, be waived. The filtering of the audio elements or text elements of an instruction belonging to a location point can hereby be ensured by a non-compulsory analysis device of the navigation device.

The multimedia files with audio or video content normally output on a multimedia player are initially created as single-title files with no multimedia content. This reduces the memory requirements in the multimedia player. Also, the transfer of data due to the small size can be made very quickly via the interface of the navigation device. A title for the file directory is a hint to the partial route.

After the file directory has been transferred to the multimedia player through the interface and the file directory has been stored in the multimedia player, the file list is added to the playlist by manual operation of the multimedia player, and the individual text messages sequentially reappear on the submenu on the display of the multimedia player. It may be advantageous to set an automatic mark against the end of the file due to the initially non-existent file content, whereby the "playing" of the file is interrupted. The individual titles are then output successively after pressing the playback function.

An essential advantage of the method is that the multimedia playback device requires no additional receiver or transmitter for navigation and no high demands are placed on both computing power and storage capacity of the multimedia playback device. This is particularly advantageous for a multimedia playback device that is almost completely filled with multimedia content.

In another embodiment, the files of the directory are at least partially attached to audio elements of the associated instruction of the partial route. In addition to the textual information, selected audio element blocks can be added directly to the corresponding instruction as multimedia content of the file. The text message that forms the title of the file is part of the same instruction from which the audio elements are also copied to the file. This makes a simplified route guidance possible.

In a further embodiment, the files of the file directory may also include graphic representations of the instruction belonging to a location point of the partial route, wherein the graphic representations may be provided as individual images in two-dimensional or three-dimensional representation or as multimedia films. It is advantageous if the control unit of the navigation device enables a conversion of the stored in the internal navigation database maps in various multimedia formats. This further increases the convenience of reading the individual route elements of the partial route.

In a further embodiment, in addition to the file directory of the partial route, a further directory with a return route passing through the partial route in the reverse direction is created and transmitted to the multimedia display device together with the file directory of the partial route. Since the practical application of the present invention will often involve walking from a vehicle to a destination with or without the use of public transportation, it will usually be necessary to make a return journey. By creating the return route through the navigation device and storing them in the multimedia device eliminates the user for the effort for remembering the return route. In addition, the return route may deviate from the original partial route, so that a note of the return route is impossible and the user for the return route must be supplied with completely different files. This can be a great help especially in foreign cities, for example during a city tour. A reverse route or a return route deviating from the partial route includes different instructions to the instructions of the route.

In order to be able to carry out the method, the control unit of the navigation device must be designed such that the instruction held in the navigation device is filtered to a location and a file directory with associated files and the title designed as a text message is created. This may include, among other things, an analyzer.

• 1 ein Ausführungsbeispiel eines Systems zur Durchführung des Verfahrens;
• 2 eine schematische Darstellung einer Route;
• 3a, 3b einen Überblick zum Erstellen einer Liste von Anweisungen mit Ortspunkten;
• 4 eine schematische Darstellung der angelegten Dateiverzeichnisse;
• 5 eine schematische Darstellung eines Verfahrensablaufs.

In the following the invention will be explained in more detail with reference to some embodiments. Show it:

• 1 an embodiment of a system for carrying out the method;
• 2 a schematic representation of a route;
• 3a . 3b an overview for creating a list of instructions with location points;
• 4 a schematic representation of the created file directories;
• 5 a schematic representation of a process flow.

The 1 shows a system with a navigation device 1 and an external portable multimedia player 2 , The navigation device 1 has a control unit 100 , an indicator 101 , an input device 102 , a storage element 103 , a position determination unit 104 and an interface 105 on. The multimedia player 2 contains a control unit 200 , a storage element 201 , an indicator 202 as well as one to the interface 105 compatible interface 205 on.

About the input 102 the navigation device 1 a route start and a route destination are entered. As a starting point of the route, the current position can be taken over, using the in this case satellite-based position determining unit 104 is determined. However, it is also possible to use a position determination unit using wireless networks such as WLAN networks. From the start and end point is using the in memory element 103 stored navigation data in the control unit 100 creates a route from location points, with instructions associated with the location points. The calculated route will be on the display 101 output. The control unit 100 is with the interface 105 , which may be formed for example as a USB interface connected. About the interface 105 can the navigation device 1 updated or other external devices, such as the multimedia player, with the navigation device 1 get connected.

In the 2 is the ad 101 the navigation device 1 shown, with a route 3 , the location points 10 to 17 connecting, and a partial route 4 , the location points 15 to 17 connecting, are shown. The location point 10 here forms the starting point, the location point 17 the actual destination and the location 15 the point at which the vehicle is parked and from which the rest of the route is completed, for example on foot or by bike. Based on the route shown 3 and the lines connecting the location points 10 to 17 is merely intended to illustrate that shortly before a location point, when it is reached and shortly thereafter, information for navigation through the navigation device 1 to be provided. This information can be represented, for example, as text elements, as audio symbols, as graphic symbols or map elements, the output of the information that appeals to the various senses by the control unit 100 is regulated.

Based on 3a should a possible through the control unit 100 reserved route are explained. In the first column of the table are the location points 10 as well as the the partial route 4 relevant points 15 to 17 listed. In the columns to the right are the instructions associated with a location point 20 , In the second column are text elements 30 , in the third column audio elements 40 , in the fourth column graphic symbols 50 and in the fifth column, map elements 60 presented as part of the instructions. With regard to a time to be selected for reproducing the respective elements, each location point is assigned a first line, a second line and a third line. The first line contains preparatory measures which provide information which is output before reaching the location point, the second line contains measures which are output when the location point is reached, and the third line contains post-processing measures which are output after leaving the location point be partially overlapping with the preparatory measures or information of the next location point.

When selecting the partial route 4 by a user of the navigation device 1 For example, first the register entries of the location points 15 to 17 and the associated text elements 350 to 372, the associated audio elements 450 to 472, the associated graphic elements 550 to 572 and the associated map elements 650 to 672 are kept.

Is used at the same time in the selection of the partial route 4 a manual or automatic command to create a return route 4 ' to the control unit 100 given, are at the same time the Register entries of the location points 15 'to 17' with the associated text elements 30 ' ie 352 'to 372', the associated audio elements 40 ' , the associated graphic symbols 50 ' and the associated map elements 60 ' provided. The location points 15 to 17 are identical with the location points 15 'to 17'. However, when creating the return route 4 ' For example, consider text element 370 'of the second column of the first row of the table 3b not with the text element 370 of the location 17 of the 3a is identical, since the instruction must be mirror image with identical return path.

In the 4 are the associated directories 70 for the partial route 4 and directories 70 ' for the return route 4 ' shown. The directories 70 . 70 ' be through the control unit 100 created and initially contain files 75 to 77 respectively. 77 ' to 75 ' , each with the location points 15 to 17 respectively. 17 ' to 15 ' correspond, ie the location point 15 corresponds to the file 75 , A single file 75 initially has two components 750 and 751, the other files for analog components. The component 750 is the title of the file, the components 751 the actual multimedia content. After the file directories 70 respectively. 70 ' created and with its own name, which is on the sub-route 4 or the return route 4 ' the file directories have been provided 70 . 70 ' initially in the memory element 103 saved. When connecting the multimedia player 2 to the interface 105 become the in memory element 103 reserved directories 70 respectively. 70 ' passed with the data therein to the multimedia player and there in the memory element 201 stored. By means of a suitable instruction of the control unit 100 the navigation device 1 to the multimedia player 2 can the file directories 70 respectively. 70 ' also directly to the current playlist of the multimedia player 2 to be added. This is an access of the control unit 100 the navigation device 1 on the control unit 200 of the multimedia player 2 necessary.

Like from the 3a . 3b and 4 it can be seen, the order of the files 75 to 77 and 77 'to 75' corresponds to the location points of the partial route 4 or the return route 4 ' , This sorting is done by the control unit 100 the navigation device 1 performed.

On the basis of in the 5 illustrated schematic process flow will be explained in more detail how the to a location, here illustratorally the location point 15, associated elements 350 to 352 or 450 to 452 or 550 to 552 or 650 to 652 selected for filtering, manipulated in their content and the associated file 75 be attached. Within a file is essentially the text element 351 when reaching the location point, z. B. "Turn right now in the castle street" the actually relevant message. Therefore, the text element 351 is first selected as an element upon reaching the location point. In this case, the text element 351 does not need by the navigation device 1 but can only serve as part of the instruction to create the associated audio element or graphic symbol.

The text element 351 becomes an analysis device 80 fed. This analyzer 80 can as part of the control unit 100 be educated. At the analyzer 80 it is essentially a text filter which frees the text element 351 from time indications such as "now, same" or similar and only location or direction indicating elements such as local or directional adverbs and prepositions and possibly some supplementary verbs with location and direction function leaves. Using a simple filter arrangement, the semantics of the remaining words are checked for a minimum of comprehensibility and, if necessary, the word position is changed. The text element 351 manipulated in this way now forms the text message 3510, which, analogously to the previous example, merely contains: "To the right into Schlossstrasse". The shortening is obvious as well as the removal of the temporal words. The text message 3510 is stored as the title of the file 75 and forms the file component 750. A file which has only the title but no multimedia content forms the essential core idea of the invention, since the file size is very small but all necessary information is included, to follow the planned route.

Depending on the embodiment of the method, in addition to the file component 750, further file components 751, which contain multimedia content, can also be added to the file 75 to be added. By way of example, the audio element 452 may be mentioned here which, after reaching the location point, contains information about the next location point such as the distance, for example, so that the user of the multimedia playback device 2 can orientate when the next text message will be taken care of. Furthermore, it may be useful to supplement the graphic symbol 551 as a multimedia content of the file 75 to add, for example, which represents a right arrow for graphical illustration of the direction to be taken. In addition, also the map element 652 after leaving the location point 15 be added, so that the user an orientation for the environment after the change of direction according to the text message 3510 gets to the hand.

The partial route 4 can also be completed as a tour, for example, by adding another location point between the location points 15 and 17 so that the location points in the order 15 . 16 . 17 , added location point to be expired and last again the location point 15 is reached. Here, the location points of such a tour can also be stations of a city tour, the associated sub-route includes various attractions, so that by means of the simple multimedia playback device a city guide function can be realized.

Also, by appropriate input, the navigation device 1 be instructed to cover certain sections of a route route with public transport, the sub-route can move in the sense that added more location points, such as the way from the public stop to the actual destination point.

LIST OF REFERENCE NUMBERS

1

navigation device

2

Multimedia playback device

3

route

4

part route

4 '

return route

10-17,15'-17 '

location points

20

instructions

30, 300-399, 30 ', 300'-399'

text elements

40, 400-499, 40 ', 400'-499'

Audio elements

50, 500-599, 50 ', 500'-599'

graphic symbols

60, 600-699, 60 ', 600'-699'

map elements

70.70 '

file folders

75-77, 75'-77 '

file

80

analyzer

100

control unit

101

display

102

input device

103

storage element

104

Position Determination Entity

105

interface

200

control unit

201

storage element

202

display

205

Multimedia playback device

750-772,750'-772 '

file components

3510

text message

Claims (4)

Method for transmitting a partial route (4) of a route (3) created with a navigation device (1) for preferably satellite-based electronic navigation to a multimedia playback device (2) without a position-determining device by means of an interface (105), the method comprising the following steps: a) creating a route (3) by means of the navigation device (1) with at least two location points (10 - 17), wherein in each case a location point (10 - 17) an instruction (20) is created; b) selecting the partial route (4), the partial route (4) comprising at least two location points (10-17) and the associated instructions (20); c) creating a directory (70, 70 ') by the navigation device (1), wherein in the file directory (70, 70') successively sorted to each to the partial route (4) associated location point (15 - 17) an empty file (75 - 77 ) is created with title, but without multimedia content, and the title each contains a text message (3510) with a shortened content of the statement belonging to the location (20); d) transmitting the directory to the multimedia player (2) by means of the interface (105) and storing the file directory (70, 70 ') in the multimedia player; e) Consecutive representation of the titles of the files (75-77) of the directory (70) in a display (202) of the multimedia player (2). Method according to Claim 1 , characterized in that in addition to the directory (70) of the sub-route (4) another file directory (70 ') with a return route (4') created and transmitted to the multimedia playback device (2). Navigation device (1) for satellite-based electronic navigation comprising a control unit (100), a memory element (103), a display (102), an input (101) and an interface (105) for connecting an external portable multimedia playback device (2) to a Display (202), wherein the control unit (100) calculates a route (3) having at least two location points (10-17) and generates and outputs an instruction (20) for each location point, characterized in that the control unit (100) is set up, the procedure according to one of Claims 1 or 2 perform. A system comprising a navigation device (1) and an external portable multimedia player (2) having a display, characterized in that the system is arranged to perform the method of any one of Claims 1 or 2 perform.

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