EP1360460A1 - Method for coding optical driving instructions - Google Patents
Method for coding optical driving instructionsInfo
- Publication number
- EP1360460A1 EP1360460A1 EP02706613A EP02706613A EP1360460A1 EP 1360460 A1 EP1360460 A1 EP 1360460A1 EP 02706613 A EP02706613 A EP 02706613A EP 02706613 A EP02706613 A EP 02706613A EP 1360460 A1 EP1360460 A1 EP 1360460A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- basic
- instructions
- route
- main
- main route
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3626—Details of the output of route guidance instructions
- G01C21/3632—Guidance using simplified or iconic instructions, e.g. using arrows
Definitions
- the invention is based on the genus as shown in independent claim 1.
- Optical driving instructions can be shown on a display of a car radio or a combined display for on-board information.
- a disadvantage of this known method is that it is not possible to generate arbitrary driving information geometries that largely correspond to the real course of the road and route.
- driving instructions are generated as a result of drawing instructions from at least two basic forms of standardized geometric symbols.
- their directions to each other are shown and the basic forms themselves are shown differently for the main route and secondary route.
- the starting point of a following basic shape of the main route is advantageously set in each case on or at a point of a previous basic shape of the main route.
- the driving instructions can be simulated with high accuracy and recognizability of the actual traffic situation and the main route.
- the abstraction to at least two basic geometrical forms enables the reduction of the memory requirement or the data rate when the information is transmitted.
- the information can also be converted from simple displays into corresponding representable symbols and scaled to the individual size of the display.
- the information can also be displayed on high-resolution displays with high quality.
- a straight line and a circular segment are preferably represented as at least two basic shapes.
- a polygon can also be displayed as an additional basic shape. This makes it possible to represent situations that can not be adequately represented by straight lines or arcs, such as. B. places.
- a U-loop can also be represented as an additional basic form.
- the driving instructions can each be compiled according to an assigned information about the number of drawing instructions to be displayed.
- the sense of direction of the basic forms of circle segment and U-loop can be displayed depending on the local left-hand or right-hand traffic.
- the drawing instructions for each driving instruction can be displayed in a saved and / or transferred data record, which records information about the number of related drawing instructions as well as information about each drawing instruction about the main or secondary route, basic shape and direction.
- the individual components of the drawing instructions can be processed one after the other and displayed in accordance with the regulations.
- the main route has a clear, coherent course with corresponding orientation information for secondary routes.
- FIG. 1 is a schematic representation of the structure of a drawing instruction for a basic form
- FIG. 4 shows a similar representation according to FIG. 2, but for left-hand traffic
- FIG 5 shows an illustration for an exit with multiple turning instructions.
- FIG. 1 shows the basic structure of a drawing instruction for a single basic form.
- This includes information for the display as a main or secondary route and can be encoded by 1 bit, e.g. B. 0 for main route and 1 for secondary route.
- information about the geometric element to be drawn is specified and stored by two further bits. This contains at least the information about a straight line in the form of a 00 and a circle segment in the form of an 01.
- a polygon can be represented by a 10 and a U-loop by an 11.
- the basic form also contains an indication of the direction, here a total of 16 directions are shown, which are represented in steps of 22.5 ° by the bits 0000 for 0 °, 0001 for 22.5 °, 0010 for 45 ° etc. become.
- the "turning" symbol can also be represented by a straight line of a main route with a direction of 180 °.
- Fig. 2 shows a right turn instruction. Two cross streets are shown in front of the main intersection. In addition to the drawing instructions, you can also see the binary code sequence with which the data is stored in memory or transmitted during transmission.
- the first instruction is preferably omitted, since, as already explained, it is always assumed to be a straight line as the main route in the direction of travel.
- the first drawing instruction which is coded, is therefore a vertical, bold, straight line.
- the starting point for the next drawing instruction is then the end of this first straight line.
- the second drawing instruction is a straight line in the form of a secondary route, which is drawn as a thin line from the new starting point in the direction of 90 °.
- the third drawing instruction is again a side line, which is drawn in the direction of 270 ° from the old starting point as a thin line.
- the following main line is shown as a bold line from the still fixed starting point in the direction of 0 °. This is followed by the last drawing instruction, which is shown here as a thick arrow in the direction of 90 °.
- Fig. 3 shows a roundabout for right-hand traffic. Starting from the starting point, a bold straight line in the direction of 0 ° is shown again without drawing instructions. The first drawing instruction is a roundabout exit in the direction of 225 °. This is followed by two further exits from the roundabout, the last one in the direction 45 ° of the main route is shown. Since the first two exits are part of the branch lines, all drawing instructions start at the same starting point. Only after drawing the last exit, which is the main route, will the new starting point be placed at the end.
- Fig. 4 shows an analog representation for a roundabout for left-hand traffic.
- the information for left-hand traffic is given in the header and is therefore only required once, but not for every drawing instruction.
- a bold straight line in the direction of 0 ° is shown again without drawing instructions.
- the first drawing instruction is a segment of a circle in the direction of 135 ° etc. similar to FIG. 3 with a different direction.
- Fig. 5 shows an exit at which it has to be driven twice.
- the first straight line is again a vertical straight line in bold type without any drawing instructions.
- the starting point for the next drawing instruction is the end of this straight line.
- the second drawing instruction is a straight line for a secondary route, which is shown as a thin line from the new starting point in the direction of 0 °.
- the starting point remains unchanged.
- the third drawing instruction is a main line, which is drawn in bold in the direction of 315 °, the starting point shifting to the end point of the main line.
- the next drawing instruction is again a main straight line that runs in the direction of 0 °. There follows a side street in the direction of 0 ° and finally the arrow in the direction of 315 °.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Navigation (AREA)
- Traffic Control Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10105902 | 2001-02-09 | ||
DE2001105902 DE10105902A1 (en) | 2001-02-09 | 2001-02-09 | Process for coding optical driving instructions |
PCT/DE2002/000200 WO2002065059A1 (en) | 2001-02-09 | 2002-01-23 | Method for coding optical driving instructions |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1360460A1 true EP1360460A1 (en) | 2003-11-12 |
Family
ID=7673409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02706613A Withdrawn EP1360460A1 (en) | 2001-02-09 | 2002-01-23 | Method for coding optical driving instructions |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1360460A1 (en) |
JP (1) | JP2004518149A (en) |
DE (1) | DE10105902A1 (en) |
WO (1) | WO2002065059A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10323936A1 (en) * | 2003-05-24 | 2005-01-27 | Jentro Technologies Gmbh | Navigation system and method |
JP4509620B2 (en) | 2004-03-24 | 2010-07-21 | クラリオン株式会社 | In-vehicle information terminal, summary map creation device, summary map display method |
DE102009050465A1 (en) | 2009-10-23 | 2010-06-24 | Daimler Ag | Method for symbolic representation of traffic circle on e.g. head-up display, arranged in combination instrument of motor vehicle, involves representing beam sections of traffic circle exit in accordance with rounded off value for angle |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2260210A (en) * | 1991-10-04 | 1993-04-07 | Ford Motor Co | Navigation system |
US5654892A (en) * | 1991-10-18 | 1997-08-05 | Zexel Usa Corporation | Navigation system displaying forthcoming turns |
US5414630A (en) * | 1993-09-29 | 1995-05-09 | Zexel Corporation | Vehicle-mounted navigation system |
US5925090A (en) * | 1996-08-16 | 1999-07-20 | Alpine Electronics, Inc. | Sign text display method and apparatus for vehicle navigation system |
-
2001
- 2001-02-09 DE DE2001105902 patent/DE10105902A1/en not_active Withdrawn
-
2002
- 2002-01-23 EP EP02706613A patent/EP1360460A1/en not_active Withdrawn
- 2002-01-23 WO PCT/DE2002/000200 patent/WO2002065059A1/en not_active Application Discontinuation
- 2002-01-23 JP JP2002564331A patent/JP2004518149A/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO02065059A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2002065059A1 (en) | 2002-08-22 |
JP2004518149A (en) | 2004-06-17 |
DE10105902A1 (en) | 2002-08-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20030909 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
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RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: DRAEGER, GERD Inventor name: SKWAREK, VOLKER Inventor name: FRIEDRICHS, ARNE |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SKWAREK, VOLKER Inventor name: FRIEDRICHS, ARNE Inventor name: DRAEGER, GERD |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20070801 |