EP0392374A1 - Procédé pour la transmission d'informations de guidage - Google Patents
Procédé pour la transmission d'informations de guidage Download PDFInfo
- Publication number
- EP0392374A1 EP0392374A1 EP90106591A EP90106591A EP0392374A1 EP 0392374 A1 EP0392374 A1 EP 0392374A1 EP 90106591 A EP90106591 A EP 90106591A EP 90106591 A EP90106591 A EP 90106591A EP 0392374 A1 EP0392374 A1 EP 0392374A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- target
- points
- guidance information
- target area
- destination
- 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.)
- Granted
Links
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
- G08G1/096805—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route
- G08G1/096827—Systems involving transmission of navigation instructions to the vehicle where the transmitted instructions are used to compute a route where the route is computed onboard
Definitions
- the invention relates to a method for transmitting guidance information and for selecting guidance information to be displayed in a traffic guidance system.
- the driver selects a specific destination in the vehicle, and guidance information corresponding to this destination is displayed to him in time and place in order to show him the fastest and / or cheapest route to his destination. Since this guidance information should take into account both the geographical conditions and the respective traffic conditions, it must be transferred to the vehicle at certain points, for example on beacons. There are basically two options for this transfer:
- the roadside devices are kept relatively simple in that the target information is not exchanged in dialog communication between the vehicle and the road device, but rather cyclically transmits all the relevant target information to all passing vehicles are, each vehicle selects the associated information for itself and its specific destination from the totality of the information received.
- This makes it possible to transmit the target information from the master beacon in a non-directional manner, so that the use of complex coupling loops for dialog traffic can be dispensed with.
- the target areas are determined by the coordinates of their corner points, and the assignment of a specific target point to the target area of transmitted guidance information is done by comparing the target point with the corner points of the respective target areas. Only target points that lie within the convex shape of the polygon can be correctly assigned.
- the aim of the present invention is to provide a method in a control system of the type mentioned at the outset, with which all target points can be combined with a specific control information for transmission to a common target surface, even if the target surface does not have a continuously convex shape, in which Vehicle the relevant guidance information can be easily selected for a specific destination.
- this method for the transmission and for the selection of guidance information to be displayed has the following features: - When a vehicle passes a stationary beacon, it receives guidance information for all of the target points that can be reached from the beacon; - For the transmission of the guidance information, all target points for which the same guidance information applies are combined to form one target area, the boundary line for each de target area is formed by a polygon of any kind; - This traverse for each target surface is transferred with its geometric course; - The associated target information is transmitted to each target area; - In the vehicle, the target area belonging to it is selected by entering a target point, namely by comparing the target point coordinates with the boundary lines (polygon lines) of the individual target areas and - The guidance information belonging to the selected target area is displayed in the vehicle.
- the corner points of the polygons themselves are instead related to the target point when determining in which target area a selected target point lies, rather the boundary lines of the polygons are related, so that even with concave border lines a reliable assignment of target point and target area and thus information belonging to the target area is possible.
- the number of target areas and thus the number of guidance information to be transmitted can be kept small compared to the size of the entire target area, whereby a very large target area, for example of the size of the whole of Europe, can be detected at a given transmission rate on a beacon can.
- the target area for a specific target point is expediently determined by examining a coordinate cross placed through the target point for intersections with the boundary line of each target area, the target area including the target point being determined from the number of intersections.
- the guidance information of that target surface is advantageously selected for the target point, with the boundary line of which the coordinate cross has an odd number of intersection points in each direction. In this way, even with boundary lines with concave sections, a safe Determination can be made on which side of the border line the selected target point lies.
- FIG. 1 schematically shows a target area in the form of a rectangle with the corner points E7, E13, E14 and E15, which is subdivided into three target areas F1, F2 and F3 due to geographical or traffic-related circumstances.
- This target area can be part of an even larger system area, so that the target areas F1, F2 and F3 are in the long range (in the sense of EP-A-0 261 450).
- a vehicle FZ receives guidance information for the entire target area from a beacon BK.
- First guide information Li1 is used for guiding the vehicle S to all points in the target area F1, the guide information Li2 for guiding the target area F2 and the guide information Li3 for guiding the vehicle to all selected target points in the target area F3.
- the boundary lines of the individual target areas are designed as any polyline, whereby concave and convex areas alternate.
- a target point Z was selected in the vehicle. From the data received by the beacon BK, that guidance information must now be selected in the vehicle that corresponds to the destination point entered in the vehicle, ie guides the vehicle driver to the selected destination point Z. It must therefore be determined in which target area the target point Z lies with the coordinates x z and y z . For this purpose, a coordinate cross with the axes in the east-west direction and north-south direction is placed through the point Z, and it is examined how many intersection points this coordinate cross in each direction with the boundary lines of the individual target areas F1, F2 and F3 having.
- the boundary lines are each designated GR1, GR2 and GR3, with certain sections of these boundary lines naturally being assigned to both the one and the other target area.
- the target area F1 is defined by the polygon with the corner points E1, E2, E3, E4, E5, E6, E7, E8 and E1, the target area F2 by the corner points E8, E13, E14, E12, E11, E10, E9 and E1, while the target surface F3 has the corner points E1, E9, E10, E11, E12, E15, E6, E5, E4, E3, E2 and E1.
- To assign the target point Z to a target area proceed as follows: If one follows the x z coordinate from point Z to the east, then the intersection line GR1 results in the intersection points SO1, SO2, SO3 and SO4 (four intersection points).
- the y z coordinate has two intersections with the boundary line GR1 in the north direction, namely SN1 and SN2. In the west direction, the x z coordinate with the boundary line GR has no intersection point, nor does the y z coordinate in the south direction.
- intersections with all four coordinate branches namely: - Five intersections in the east direction, namely SO1, SO2, SO3, SO4 and SO5; - An intersection in the north direction, namely SN1; - An intersection in the west direction, namely SW1 and - An intersection in the south direction, namely SS1.
- the point Z must lie in the target area F3.
- the guide information Li1 is accordingly selected to achieve the target point Z.
- the section between the corner points E1 (x1, y1) and E2 (x2, y2) is selected from the boundary line GR1.
- step S2 examines whether the coordinate y z is between y 1 and y 2. If this is not the case, then there is no intersection in the east-west direction and it is possible to proceed directly to step S7. In the other case, the x coordinate of the intersection SOW in the X direction is calculated (step S3). If this x coordinate x ow has been calculated, it is checked in step S4 whether it is smaller than x z or larger. Accordingly, it is determined in steps S5 and S6 that the intersection SOW lies west or east of Z. Depending on the result, an intersection SW or an intersection SO is counted in corresponding memories.
- step S7 the same process is repeated for the north-south direction. It is checked whether x z is between x1 and x2. If this is the case, the y coordinate of the intersection SMS in the north-south direction is checked in step S8. So will in step S9 it is examined whether this y coordinate y ow is smaller or larger than y z . Accordingly, an intersection point south of Z or north of Z is determined (steps S10 and S11), and a corresponding intersection point is counted in the associated memories SS and SN.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Navigation (AREA)
- Traffic Control Systems (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Inorganic Insulating Materials (AREA)
- Control Of El Displays (AREA)
- Electronic Switches (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Communication Control (AREA)
- Photoreceptors In Electrophotography (AREA)
- Selective Calling Equipment (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP89106650 | 1989-04-13 | ||
| EP89106650 | 1989-04-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0392374A1 true EP0392374A1 (fr) | 1990-10-17 |
| EP0392374B1 EP0392374B1 (fr) | 1994-07-20 |
Family
ID=8201223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90106591A Expired - Lifetime EP0392374B1 (fr) | 1989-04-13 | 1990-04-06 | Procédé pour la transmission d'informations de guidage |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0392374B1 (fr) |
| AT (1) | ATE108926T1 (fr) |
| DE (1) | DE59006467D1 (fr) |
| DK (1) | DK0392374T3 (fr) |
| ES (1) | ES2057238T3 (fr) |
| FI (1) | FI901900A7 (fr) |
| NO (1) | NO901670L (fr) |
| PT (1) | PT93733A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996000960A1 (fr) * | 1994-06-29 | 1996-01-11 | Siemens Aktiengesellschaft | Systeme electronique d'information et d'indication d'horaires pour transports publics |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0025193A1 (fr) * | 1979-09-06 | 1981-03-18 | Siemens Aktiengesellschaft | Système de guidage pour le trafic individuel et méthode pour la transmission d'informations de guidage |
| GB2139794A (en) * | 1983-05-09 | 1984-11-14 | Hubert Ralph Waldo Rabson | Comprehensive road direction indicators |
| EP0261450A1 (fr) * | 1986-09-03 | 1988-03-30 | Siemens Aktiengesellschaft | Système de guidage pour la circulation individuelle |
-
1990
- 1990-04-06 EP EP90106591A patent/EP0392374B1/fr not_active Expired - Lifetime
- 1990-04-06 DE DE59006467T patent/DE59006467D1/de not_active Expired - Fee Related
- 1990-04-06 DK DK90106591.2T patent/DK0392374T3/da active
- 1990-04-06 AT AT90106591T patent/ATE108926T1/de not_active IP Right Cessation
- 1990-04-06 ES ES90106591T patent/ES2057238T3/es not_active Expired - Lifetime
- 1990-04-11 NO NO90901670A patent/NO901670L/no unknown
- 1990-04-11 PT PT93733A patent/PT93733A/pt not_active Application Discontinuation
- 1990-04-12 FI FI901900A patent/FI901900A7/fi not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0025193A1 (fr) * | 1979-09-06 | 1981-03-18 | Siemens Aktiengesellschaft | Système de guidage pour le trafic individuel et méthode pour la transmission d'informations de guidage |
| GB2139794A (en) * | 1983-05-09 | 1984-11-14 | Hubert Ralph Waldo Rabson | Comprehensive road direction indicators |
| EP0261450A1 (fr) * | 1986-09-03 | 1988-03-30 | Siemens Aktiengesellschaft | Système de guidage pour la circulation individuelle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996000960A1 (fr) * | 1994-06-29 | 1996-01-11 | Siemens Aktiengesellschaft | Systeme electronique d'information et d'indication d'horaires pour transports publics |
Also Published As
| Publication number | Publication date |
|---|---|
| PT93733A (pt) | 1990-11-20 |
| FI901900A7 (fi) | 1990-10-14 |
| ES2057238T3 (es) | 1994-10-16 |
| DK0392374T3 (da) | 1994-08-29 |
| DE59006467D1 (de) | 1994-08-25 |
| EP0392374B1 (fr) | 1994-07-20 |
| ATE108926T1 (de) | 1994-08-15 |
| FI901900A0 (fi) | 1990-04-12 |
| NO901670D0 (no) | 1990-04-11 |
| NO901670L (no) | 1990-10-15 |
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