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EP0290679B1 - Einrichtung für Empfang und Verarbeitung von Strassennachrichtenmeldungen - Google Patents

Einrichtung für Empfang und Verarbeitung von Strassennachrichtenmeldungen Download PDF

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Publication number
EP0290679B1
EP0290679B1 EP87200845A EP87200845A EP0290679B1 EP 0290679 B1 EP0290679 B1 EP 0290679B1 EP 87200845 A EP87200845 A EP 87200845A EP 87200845 A EP87200845 A EP 87200845A EP 0290679 B1 EP0290679 B1 EP 0290679B1
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EP
European Patent Office
Prior art keywords
message
road
messages
region
zone
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.)
Expired - Lifetime
Application number
EP87200845A
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English (en)
French (fr)
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EP0290679B2 (de
EP0290679A1 (de
Inventor
Jacques Francois Mauge
Serge Verron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8197615&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0290679(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Priority to EP87200845A priority Critical patent/EP0290679B2/de
Priority to DE3752122T priority patent/DE3752122T3/de
Priority to AT87200845T priority patent/ATE158886T1/de
Priority to CA000566001A priority patent/CA1323426C/en
Priority to US07/190,542 priority patent/US4907159A/en
Priority to AU15840/88A priority patent/AU614745B2/en
Priority to JP63110638A priority patent/JP2720975B2/ja
Publication of EP0290679A1 publication Critical patent/EP0290679A1/de
Publication of EP0290679B1 publication Critical patent/EP0290679B1/de
Publication of EP0290679B2 publication Critical patent/EP0290679B2/de
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
    • H04H20/55—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for traffic information
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/091—Traffic information broadcasting
    • G08G1/092—Coding or decoding of the information
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/091—Traffic information broadcasting
    • G08G1/093—Data selection, e.g. prioritizing information, managing message queues, selecting the information to be output
    • 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
    • G08G1/0969—Systems involving transmission of navigation instructions to the vehicle having a display in the form of a map
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/27—Arrangements for recording or accumulating broadcast information or broadcast-related information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
    • H04H2201/13—Aspects of broadcast communication characterised by the type of broadcast system radio data system/radio broadcast data system [RDS/RBDS]

Definitions

  • the present invention as defined in the claims relates to a device for receiving and processing road information messages sent in digital form, each message comprising at least a first section for indicating the area of the road network to which it relates.
  • the message which device comprises for the control of data processing a data processing unit which is connected to a bus for data transfer, to which bus are also connected a reception memory for temporarily storing the messages received, a unit for selection for selecting from the stored messages those relating to an area to be designated and a presentation unit for presenting the selected messages.
  • the traffic information messages are coded according to the specifications of the radio data system RDS (Radio Data System) and transmitted from a radio station.
  • RDS Radio Data System
  • a first section of each message sent indicates the area of the road network to which the message relates. This area can be formed by a road or by a region of a country.
  • the user who wishes the traffic information messages for a zone according to his choice will use the selection unit to indicate the zone chosen to the central unit. Under the control of this data processing unit, the content of the reception memory will be scanned entirely in search of messages relating to the designated area. Each message thus identified will be transmitted to the message presentation unit that the presentation to the user. Thus the user is able to receive only traffic information messages relating to the area of his choice.
  • a disadvantage of the known system is that during each request made by the user, the reception memory is scanned entirely. This imposes a heavy load on the data processing unit during each request and can, when there is a large quantity of messages stored in the reception memory, impose a relatively long search time.
  • the invention aims to provide a device for receiving and processing traffic information messages where the storage and retrieval of information is organized in a more efficient manner.
  • a device for receiving and processing traffic information messages according to the invention is characterized in that the device comprises a message analysis unit which comprises a memory-table of the zones, which analysis unit is provided for recognizing on each reception of a message the zone in question on the basis of said first section of the message received and to store in the zone table, by means of at least one indicator for each message, the messages received according to the zones to which they belong , which selection unit is provided to have access to the zone table and to carry out said selection by taking messages from the zone table for the designated zone.
  • the message analysis unit will, after each reception of a message, analyze the first section of the message in order to recognize the zone to which it relates.
  • the analysis unit When the analysis unit has recognized the zone to which the received message relates, it will store at least one indicator for this message in the zone table at a location designated for this zone. This indicator is for example formed by the address where the message in question is stored in the reception memory.
  • the selection unit When the user has indicated his choice, the selection unit will select from the zone table only the place designated for the zone requested. Thus, the selection is made more quickly since it is no longer necessary, during each request, to browse the entire content of the reception memory but only to take the indicators stored in the place designated for the requested area.
  • a first preferred form of a device according to the invention is characterized in that the memory-table of the zones includes a route table where the messages are arranged according to the routes to which they relate and in that the indicators consist of the addresses at which the messages in question are stored in the reception memory.
  • the selection and the arrangement in the route table can be carried out on the basis of the category and the number of the routes.
  • a second preferred form of a device according to the invention is characterized in that the device is equipped with a tracking unit for locating in a received message the region to which it relates, which message analysis unit is linked to the tracking unit and in that the zone memory table includes a table of regions where the messages are arranged according to the regions to which they relate and in that the indicators consist of the addresses to which the messages in question are stored in the reception memory.
  • the locating unit makes it possible to locate in a received message the region to which it relates and thus offers the possibility of carrying out a selection and storage on the basis of the regions.
  • the device comprises a correspondence-routes-regions table for storing for a predetermined number of roads in the road network to which the correspondence-routes-regions table relates an overflow index indicating the maximum number of traffic messages for each of the routes. of said predetermined number, said device being equipped with a verification unit connected to the correspondence-routes-regions table and to the routes table to verify whether the number of messages stored for each route does not reach the number indicated by l overflow index for the route in question, and to eliminate the presence of a message for a route for which the number of messages stored in the route table has reached the number indicated by the overflow index.
  • the use of an overflow index and of the verification unit makes it possible to limit the number of messages to be memorized and to better share the content of the reception memory between the different zones.
  • the verification unit is provided for carrying out said elimination of the presence of the oldest message among said number of messages.
  • the oldest messages are thus regularly eliminated, thus not obstructing the reception memory for the reception of new messages.
  • the locating unit comprises a correspondence table-roads-regions where are stored for each of the roads a predetermined number of roads of a road network at least one index indicating at least one region crossed by the road in question .
  • a correspondence-routes-regions table allows a certain freedom in the choice of the division of one or more countries into a number of regions. Thus it is possible either to divide a country according to the existing provinces or departments, or to take for each region a predetermined area.
  • a third preferred form of a device according to the invention is characterized in that the verification unit is also provided for locating with the aid of the correspondence-routes-regions table respectively of the correspondence table-regions-routes to which region respectively to which route relates the message whose presence has been eliminated and to also eliminate from the table of regions respectively of the table of routes the message whose presence in the table of routes respectively of the regions has been eliminated.
  • the device is provided with a route table and a region table, it is essential when the presence of a message has been eliminated in one of the two tables, to also eliminate the presence of this message in the 'another table.
  • each message message includes at least one sequence composed of two blocks, and where each block comprises an information part and a control part, the control part further comprising an offset word for the synchronization of the blocks, and where for a predetermined block a first and a second word shift is usable
  • a preferred form of this device is characterized in that, for the first sequence of a message the first shift word is used and for the other sequences of this same message the second shift word is used, and in that the device is provided with a decoder for decoding the offset word of a received message and generating a positioning signal when decoding a first offset word, which device comprises a sequence counter connected to the decoder, which sequence counter is positionable under the control of a positioning signal.
  • the sequence counter makes it possible to check the correct order of reception of the sequences.
  • the selection unit is provided with means allowing the selection between an intersection and / or a union of at least two zones.
  • means allowing the selection between an intersection and / or a union of at least two zones.
  • the device is provided with a conversion memory connected to the presentation unit and which is addressable by different code words and where other code words are stored for the presentation of the message.
  • a conversion memory connected to the presentation unit and which is addressable by different code words and where other code words are stored for the presentation of the message.
  • each message has a third section where an offset value is used to indicate another place relative to the place mentioned in the second section, and in that the device is provided with an address generator to form an address for the conversion memory on the basis of the second and third section of the message .
  • an address generator to form an address for the conversion memory on the basis of the second and third section of the message .
  • the device When the device according to the invention is connected the device is connected to a road navigation system for vehicles, which navigation system is equipped with means for determining a route between a point of departure and a destination, it is advantageous that the system of navigation is equipped with means for transmitting to the selection unit at least one area traversed by said route and for receiving messages concerning the designated area, said means for determining a route being provided for analyzing the received message and for recognizing in the message received if there is a traffic problem in the designated area and to determine a new route in the event of a traffic problem.
  • the road navigation system When the road navigation system is connected to the device according to the invention, it can itself select the messages for the zone or zones crossed by the route which it has just determined. When it now appears that there is a traffic problem on the initially determined route, the means for determining a route can then determine a new route, in order to circumvent the traffic problem.
  • the device according to the invention can play its part in improving road safety.
  • FIG. 1 illustrates the environment in which a device according to the invention is used.
  • a national (or regional) road information center (1) collects all the road information (accident, roadworks, traffic jam, freezing rain, etc.) that it receives. This traffic information is then selected and that which has a value for the proper functioning of road traffic is transmitted by means of a link 3 to a radio station 4.
  • the radio station is equipped to code the messages and transmit them in accordance RDS (Radio Data System).
  • RDS Radio Data System
  • the radio station can also add other messages, to those provided to it by the traffic information center, for example the presence of radar control at a determined location.
  • the radio station is equipped with a unit 5 formed for example of a keyboard and an RDS encoder.
  • the messages in RDS format are then transmitted on the air using transmitter 2 of the radio station.
  • a vehicle 7 To receive messages in RDS format, a vehicle 7 must be equipped with a receiving antenna 8 and a radio receiver 9 capable of receiving and decoding messages transmitted in RDS format.
  • the radio receiver 9 furthermore comprises a radio (cassette player) 10 a keyboard 11.
  • a person traveling on board a vehicle 7 equipped with a radio receiver 9 is able to receive the information in RDS formats transmitted by the transmitter 2.
  • the RDS system offers the user the possibility of having at any time of the day road information of a route or a region according to his own choice and to hear this traffic information in his own language.
  • the messages if they remain current, are repeated and if not they are updated approximately every five minutes. In this period of approximately five minutes, the transmitter can transmit 420 traffic information messages in RDS format using 25% of the total capacity of the RDS resource.
  • the SMR2 sub-sequence illustrated in Figure 3b is composed only by PR-LOC information.
  • This PR-LOC information is composed of 16 bits and indicates the place or the surroundings to which the message relates (for example a tunnel, a motorway exit or the name of a city).
  • the SMR1 subsequence illustrated in FIG. 3e comprises the sections PA, STT and DAV.
  • the STT section (6 bits) indicates a start time (for example from "22.00 hours").
  • the PA section has 4 bits and is used to indicate a country other than that covered by the transmitting station.
  • FIG. 4 schematically illustrates an example of a device according to the invention.
  • the device comprises a data collector terminal equipment (DCE) which further comprises a radio receiver 30 connected to an antenna 38 and provided to receive coded messages in RDS format.
  • the DCE is connected to a terminal data processing equipment (DTE) which further comprises a reception memory 31 for storing the messages received by the DCE, which memory is in turn linked to a bus 32 for transporting information (addresses + data).
  • DTE terminal data processing equipment
  • a data processing unit 33 for example a microprocessor, a read-only memory 35 a working memory 34, an extension table 36 and a table of places, a presentation unit formed by a generator speech 39 and an image generator 40 and a selection unit further comprising a keyboard 43, all these elements are part of the terminal data processing equipment.
  • An output of the speech generator 39 respectively of the image generator 40 is connected to a loudspeaker 41 (which may be the same as that used by the radio) respectively to a display unit.
  • the image generator and its display unit are optional.
  • the message MB comprises two sequences and only the last sequence of the message MA is repeated in order to illustrate the change of the link bit BB.
  • the radio receiver When the radio receiver has received the first group of the message MB, it informs the data processing unit which starts (50) the analysis process.
  • step 55 (OFF-C '?).
  • step 58 the address ADD1 is formed and where the parts SMR1 are stored ( YY) and SMR2 (Y'Y ') at the address ADD1.
  • the value FF being the address of the first free location in the reception memory, this value is for example stored in a second buffer register of the data processing unit. (The values YY and Y'Y 'represent the content of the parts SMR1 and SMR2).
  • the data processing unit After having stored a received message in the reception memory, the data processing unit will analyze the content of the message in order to detect to which zone (route, region) the message relates. To this end, the data processing unit uses a table memory of the zones formed by two tables which are illustrated in FIGS. 7 a and b. These tables form, in a preferred form of the device according to the invention, part of the working memory (34, FIG. 4) of the device. It will be clear that these tables can also be formed by two individual memories (RAM type) connected to the bus 32.
  • FIG. 7a illustrates the table of regions which is used to classify the messages according to the geographic regions to which it relates. These regions can correspond to the geographic division of the country (province, department) or be formed by an arbitrary division of the country.
  • the table is in matrix form and can be addressed by row and by column.
  • the indices indicating the different regions are stored (for example the regions B2 and B5).
  • the columns entitled ADD-MES are used to store indicators, for example the addresses (ADD) to which messages belonging to the region of their respective rows are stored in the reception memory.
  • ADD addresses
  • the column CS / R indicates the number of messages for the region in question (four for B2, one for B5) and the DEB column indicates the overflow index for the region in question.
  • the overflow index for the region is a number assigned to this region which indicates the maximum number of messages allocated for the region in question.
  • this overflow index is the same for each region and the DEG-REG column is not included in the table of regions.
  • a dedicated overflow index is assigned to each region.
  • the advantage of this preferred form is that the density of road traffic varies from region to region and from road to road. Thus in France, for example, the Paris region, with high traffic density, will have a higher overflow index than that of Auvergne. It is obvious that the greater the density of traffic, the greater the probability that there will be one or more traffic messages.
  • the overflow index thus makes it possible to equitably share the present capacity of the tables and of the reception memory.
  • the different overflow indices are for example stored in a table as described below.
  • FIG. 7b illustrates the route table which is used to classify the messages according to the numbering of the routes (class + number, CLR, RNN) to which they relate.
  • the route table is organized in the same way as that of the regions.
  • the CS / RNN column indicates the number of messages for the route in question and the DEB-RN column indicates the overflow index for the route in question.
  • the route table and the region table are loaded, it is necessary to describe how the region to which it relates is obtained from a received message.
  • the message does not include a part where the region in question is taken up.
  • an indicator indicating the region could be taken up in the PR-LOC part and then the analysis based on the region using the PR-LOC part.
  • the device uses, to recognize to which region a received message relates, a correspondence-route-regions table, which is illustrated in FIG. 8a.
  • This correspondence-routes-region table can be taken up in the read-only memory 35 of DTE or can be formed by an independent memory connected to the bus, which could even, if necessary, be in the form of a cassette or a memory card, allowing regular updating of the correspondence-routes-regions table.
  • the route-regions correspondence table can be addressed using the CLR-RNN part of the message.
  • the correspondence-routes-regions table includes a REG-ALL column where the regions crossed by the road in question are mentioned, and a DEB column where the overflow index of the road in question is mentioned.
  • the A1 motorway crosses regions B8 and B9 and has an overflow index equal to 8.
  • the device according to the invention also comprises a correspondence table-regions-routes which is illustrated in FIG. 8b and which, like the correspondence table-routes-regions, can be taken up in the read-only memory 35 of DTE or be formed an independent memory connected to the bus.
  • the correspondence-regions-roads table is addressable by means of the region code (REG) and comprises an RNN-ALL column where the roads crossing the region in question are mentioned, and a DEB column where the index of overflow of the region in question.
  • REG region code
  • FIG. 10 illustrates an example of a control keyboard forming part of the device according to the invention.
  • the control keyboard includes a display unit, for example an LCD 91 unit which makes it possible to display numbers as well as letters making it possible to indicate categories of roads (motorway, national road, departmental road) or regions (surface , department) from one or more countries.
  • the CLR / RNN key is used to indicate the choice of a route and the REG key is used to indicate the choice of a region.
  • the + / + key is used in selection mode on the one hand to increment the number displayed on the display unit 91 and on the other hand to indicate a union operation, that is to say that the user wishes to information on one or more routes and regions.
  • this + / + key is used for a positive movement of a pointer in a selection table.
  • the - / VAL key is used in selection mode on the one hand to indicate an intersection between a road and a region and on the other hand to validate the number displayed on the display unit. In presentation mode this - / VAL key is used to move the pointer negatively in the selection table.
  • the ENT key allows you to enter the choice you have made.
  • the REP key repeats the last message presented.
  • the ST key stops the presentation.
  • the EJ key cancels a message.
  • the TDC key is used for transparency.
  • Each button has a diode (LED, indicated by a dot) which lights up temporarily when the button in question is pressed. It will be clear that the control keyboard illustrated in FIG. 10 is only an example and that other achievements are possible.
  • the control keyboard also includes an encoder (not shown in Figure 10) which, among other things, encodes the signal produced when the ENT key is pressed to form a digital word which is transmitted via bus 32 to the control unit. data processing.
  • the CLR / RNN key When a driver or other user wants traffic information on a route of his choice, he will press the CLR / RNN key, which will cause the display of a first class of routes, for example the letter A indicating a highway, on the display unit. If the required route class is displayed, the user will press the ENT key so as to send his choice to the data processing unit. If a road class other than that required is displayed, the user will press the + / + key to display other road classes. After entering the required road class, the user will again press the CLR / RNN key, which will cause the display of figures on the display unit. Using the + / + key, the user will increment the number displayed until the required route number appears, and then enter this number using the ENT key. If the user wants road information on a region, he will operate in the same way as choosing a route by pressing the REG key. The indication of a specific region can be done for example by means of a number, for example 75 for the Paris region.
  • the choice of a number can be made decimal by decimal using each time the - / VAL key to validate the displayed decimal.
  • the keyboard will encode the signals of these keys and form one or more binary words which it sends to the data processing unit, which will then start the execution of the selection program by erasing the content of the selection table (step 101).
  • Data processing unit will then read part A8 of the choice and the content of the selection table. Since the first part of the driver selection is always a union operation, the data processing unit will, after execution of step 104, go to step 107 where it will check if there are messages for the A8 motorway stored in the route table and where it will find these messages in the first row.
  • the data processing unit will take these addresses 12, 13, 28, 34, 38, 52, 71 and store them in the selection table (step 108).
  • step 109 the data processing unit finds that all of the choices have not yet been taken into consideration and it will go to step 111 where it will locate the intersection operation. It then goes again to step 102 to read the choice B2 there and to step 103 to read the content of the selection table there.
  • step 104 the unit then notes that an intersection operation is required and proceeds to step 105 where it notes that there are messages for the region B2 and takes the addresses 12, 21, 34 , 38.
  • step 106 the intersection operation is carried out and the addresses 12, 34, 38, which form the intersection between A8 and B2, are kept in the selection table, while the other addresses are deleted. . Since all the choice has now been taken into consideration (step 109) the data processing unit passes to the subroutine 110 to present to the driver the messages stored at addresses 12, 34 and 38 of the reception memory. Since the TDC key has not been used, the selection program has ended.
  • a union or intersection operation is not limited to a region and a route but that it can be extended to several choices, such as for example (B2 U B5) (A8 U RN64) or the symbol U indicates a union operation and the symbol ⁇ an intersection operation. Such a choice will then require several courses in the selection program.
  • the choice of the user can also be formulated as follows. Indeed one can imagine that when a driver is going to take a motorway which spans several hundred kilometers, such as for example the A5 motorway in federal Germany, which goes from Darmstadt to Basel, and that when the driver does not will only use part of this highway, for example the part between Heidelberg and Düsseldorf, he will only be interested in the traffic messages concerning the part he is going to take. The driver will then ask using the keyboard, the intersection between A5 and the Heidelberg - Düsseldorf region. If the keyboard would also be able to allow selection on the basis of the exit numbers of a motorway, it would suffice to type on the keyboard the numbers of the exits concerned.
  • Traffic information can also play a role in the planning of a route such as carried out by a road navigation system for vehicles.
  • road navigation system for vehicles In such car navigation systems are for example described in the article "Elektronische Lotsen” appeared in Funkschau No. 22, 1986, p. 99-102.
  • a road navigation system for vehicles is equipped with means for determining a route between a starting point and a destination.
  • the device according to the invention can be connected to a road navigation system and thus the means for determining the route can take into account the road information relating to the roads which make up the journey to be traveled.
  • the navigation system must determine a route between a starting point and a destination introduced by the driver and that the route as determined in the first place comprises inter alia a motorway whose exit to be taken would be blocked due to works.
  • the navigation system When the navigation system has determined its route, it then goes for each route or only for the main routes of its route, asking the device according to the invention for the traffic messages. This can be done for example by transmitting to the data processing unit a call indicating that traffic information is requested, and the binary code of the route or routes in question.
  • the data processing unit will then process these requests in a similar way to that used for commands from the keyboard, and transmit the required information to the navigation system.
  • the navigation system will now detect that the exit from the motorway to be taken according to the blocked route, and will ask the means for determining a route to determine a new route where the exit in question will be avoided.
  • the navigation system in cooperation with the device according to the invention thus allows the driver avoid obstacles or traffic jams.
  • each message includes an ST part, indicating a probable duration of the problem
  • this ST part can also be taken into account in determining the route.
  • the ST section indicates "until 4:00 pm" and that the motorist leaves at 3:00 pm. 30 and that the exit in question is 150 km from the starting point.
  • the navigation system will then be equipped with means to take this information into consideration.
  • he will be equipped with a computer which will indicate to him that at an average speed of 100 km / h on the highway he will need an hour and a half to reach this exit.
  • This one and a half hour value will then be added to the present time (3.30 p.m.) indicated by the car clock (3.30 p.m. + 1.30 a.m.
  • the navigation system will be equipped to compare this calculated time (5:00 p.m.) to the time indicated in ST (4:00 p.m.) and it will note that for the time the motorist has reached the exit in question it will be again opened. In this case, the means for determining a route will not receive orders to determine a new route. Similarly, the navigation system in cooperation with the device according to the invention can also take the STT section into consideration when determining an route.
  • the device according to the invention uses to allow the presentation of a message, an extension table (36, Figure 4) and a table of places (37, Figure 4), which are illustrated in Figures 12a and b respectively.
  • This extension table and this places table can also be included in the read-only memory 35 and DTE. If they are made up of independent memories connected to the bus, they could even, if necessary, be in the form of cassettes or memory cards.
  • the extension table (FIG. 12a) is addressable by means of the CLR-RNN part of the message as well as the PR-LOC part.
  • a row For each road there is a number of reserved row, and a row includes an ORD part indicating a specific place of the road, for example for a motorway an exit or a resting place, and for a national or departmental road a crossing.
  • a row also includes an ADR part indicating a place in the table of places.
  • each row is not necessarily filled with information, this makes it possible in the event that there is the possibility of writing in the table (EEPROM memory, or magnetic tape) to add thereto at the required places new information, by example of new motorway exits.
  • the places table can be addressed using the address taken from the extension table (ADR column), and has a TXT APP column reserved for the name of the place indicated, a PAR column where the code to be stored is stored. speech generator to form a word into words, and a REG column indicates the region to which the indicated place belongs.
  • the CLR-RNN, PR-LOC parties now form an A7.2 address to address a place in the extension table.
  • the data processing unit will address this space A7.2 and take there data 1024 which it will use to address the table of places. At the place with the address 1024 of the table of places it will find the code 022c which it presents to the generator of words which will form "HAMBURG" in the form of words.
  • this DIR-OFFS part indicates the binary value 0 1010 indicating a positive offset of 10 to add to PR-LOC.
  • PR-LOC 2
  • the data processing unit then presents this value 021Q to the speech generator which will form "KIEL" in the form of speech.
  • Figures 14a and b illustrate an alternative form of the SMR2 sub-sequences of two successive groups.
  • the sub-sequence illustrated in FIG. 14a comprises a LOC1 part (8 bits) and a LOC2 part (8 bits) which each indicate a respective location to which the message relates.
  • the DIR, ST and SAV parts are similar to those of the groups illustrated in FIG. 3d
  • the SCTN part represents a section of the route, mentioned in the CLR-RNN part of the message, for example the section between the Düsseldorf and Strass Victoria exits on the A8 motorway in federal Germany.
  • each route of the road network has been divided into different sections (32 sections maximum if the SCTN part has 5 bits) and the locations LOC1 and LOC2 then relate to the section mentioned in SCTN.

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Claims (19)

  1. Eine Einrichtung den Empfang und die Verarbeitung von digital übertragenen Straßennachrichtenmeldungen, wobei jede Meldung mindestens einen ersten Abschnitt für die Anzeige der Zone des Straßennetzes enthält, auf den sich die Meldung bezieht, und diese Einrichtung für die Steuerung der Datenverarbeitung eine Datenverarbeitungseinheit (33) enthält, die an einen Datentransferbus (32) angeschlossen ist, und an diesen Bus zugleich ein Empfangsspeicher (31) für die zeitweilige Speicherung der erhaltenen Meldungen, eine Empfangseinheit, die es ermöglicht, zwischen den gespeicherten Meldungen diejenigen auszuwählen, die die zu bestimmende Zone betreffen, und eine Bestimmungseinheit angeschlossen sind, um die ausgewählten Meldungen zu bestimmen,
    mit dem Merkmal, daß die Einrichtung eine Meldungsanalyseeinheit enthält, die einen Zonentabellenspeicher enthält, und die besagte Analyseeinheit vorgesehen ist, um bei jedem Erhalt einer Meldung auf der Grundlage des besagten ersten Abschnitts der erhaltenen Meldung die betreffende Zone zu erkennen und um unter Verwendung mindestens eines Anzeigers für jede Meldung die erhaltenen Meldungen nach den Zonen, zu denen sie gehören, in die Zonentabelle einzuordnen, wobei die Auswahleinheit vorgesehen ist, um zur Zonentabelle Zugang zu haben und die besagte Auswahl durch die Entnahme der Meldungen für die bestimmte Zone aus der Zonentabelle durchzuführen.
  2. Eine Einrichtung gemäß dem ersten Anspruch, in der die verschiedenen Zonen eines Straßennetzes den Straßen entsprechen und mit einer Straßenkategorie und -nummer angezeigt sind, mit dem Merkmal, daß der Tabellenspeicher der Zonen (34) eine Straßentabelle enthält, in der Meldungen entsprechen der Straßen geordnet sind, auf die sie sich beziehen, und daß die Anzeiger von den Adressen gebildet werden, unter denen die betreffenden Meldungen im Empfangsspeicher (31) gespeichert sind.
  3. Eine Empfangseinrichtung laut Anspruch 1 oder 2, in der die verschiedenen Zonen eines Straßennetzes den Regionen mindestens eines Landes entsprechen, mit dem Merkmal, daß die Einrichtung mit einer Ortungseinheit ausgerüstet ist, um in einer empfangenen Meldung die Region zu orten, auf die sie sich bezieht, wobei die Meldungsanalyseeinheit mit der Ortungseinheit verbunden ist, und daß die Zonenspeichertabelle eine Tabelle der Regionen enthält, auf die sie sich beziehen, und daß die Anzeiger von den Adressen gebildet werden, unter denen die betreffenden Meldungen im Empfangsspeicher gespeichert sind.
  4. Eine Einrichtung laut Anspruch 2, mit dem Merkmal, daß die Einrichtung eine Regionen-Straßen-Entsprechungstabelle (34) enthält, um für eine vorbestimmte Anzahl Straßen des Straßennetzes, auf das sich die Regionen-Straßen-Entsprechungstabelle bezieht, einen Überlaufindex zu speichern, der die Höchstzahl Straßenmeldungen für jede der Straßen der besagten vorbestimmten Anzahl anzeigt, und die besagte Einrichtung mit einer Prüfeinheit ausgerüstet ist, die mit der Regionen-Straßen-Entsprechungstabelle (34) und der Straßentabelle verbunden ist, um zu prüfen, ob die Anzahl für jede Straße eingeordneter Meldungen für die betreffende Straße nicht die vom Überlaufanzeiger angezeigte Anzahl erreicht, und um eine vorhandene Meldung zu eine Straße zu löschen, deren Anzahl in der Speichertabelle eingeordneten Meldungen die vom Überlaufanzeiger angezeigte Anzahl erreicht.
  5. Eine Einrichtung laut Anspruch 4, mit dem Merkmal, daß die Ortungseinheit eine Regionen-Straßen-Entsprechungstabelle (34) enthält, in der für jede der Straßen einer vorbestimmten Anzahl Straßen eines Straßennetzes mindestens ein Anzeiger gespeichert wird, der mindestens eine über die betreffende Straße durchquerte Region anzeigt.
  6. Eine Einrichtung laut Anspruch 3 oder 5, mit dem Merkmal, daß die Einrichtung eine Straßen-Regionen-Entsprechungstabelle (34) enthält, um für eine vorbestimmte Anzahl Regionen einen Überlaufindex zu speichern, der die Höchstzahl Straßenmeldungen für jede der Regionen der besagten vorbestimmten Anzahl anzeigt, und die besagte Einrichtung mit einer Prüfeinheit ausgerüstet ist, die mit der Straßen-Regionen-Entsprechungstabelle (34) und der Regionentabelle verbunden ist, und prüfen kann, ob die Anzahl für jede Region eingeordneter Meldungen für die betreffende Region nicht die vom Überlaufanzeiger angezeigte Anzahl erreicht, und um eine vorhandene Meldung zu einer Region zu löschen, deren Anzahl in der Regionentabelle eingeordneter Meldungen die vom Überlaufanzeiger angezeigte Anzahl erreicht.
  7. Eine Einrichtung laut einer der Ansprüche 4 oder 6m mit dem Merkmal, daß die Prüfeinheit vorgesehen ist, um die besagte Beseitigung der ältesten anwesenden Meldung unter der besagten Anzahl Meldungen vorzunehmen.
  8. Eine Einrichtung laut Anspruch 6, mit dem Merkmal, daß die Straßen-Regionen-Entsprechungstabelle (34) für jede aufgenommene Region mindestens eine die Region durchquerende Straße enthält.
  9. Eine Einrichtung laut den Ansprüchen 5 und 8, mit dem Merkmal, daß auch die Prüfeinheit vorgesehen ist, um mit der Regionen-Straßen-Entsprechungstabelle (34) bzw. der Straßen-Regionen-Entsprechungstabelle (34) zu orten, auf welche Region bzw. auf welche Straße sich die Meldung bezieht, deren Anwesenheit beseitigt wurde, und um zugleich aus der Regionentabelle bzw. der Straßentabelle die Meldung zu entfernen, deren Anwesenheit aus der Straßentabelle bzw. der Regionentabelle beseitigt wurde.
  10. Eine Einrichtung laut einem der Ansprüche 4 oder 6, mit dem Merkmal, daß jede Straße bzw. jede Region in der Regionen-Straßen-Entsprechungstabelle (34) bzw. der Straßen-Regionen-Entsprechungstabelle (34) einem eigenen Überlaufindex zugeteilt ist, der in der Regionen-Straßen-Entsprechungstabelle (34) bzw. der Straßen-Regionen-Entsprechungstabelle (34) gespeichert wird.
  11. Eine Einrichtung laut einem der vorhergehenden Ansprüche, in der jede Meldung mindestens eine aus zwei Blöcken bestehende Sequenz enthält und in der jeder Block einen Informationsteil und einen Kontrollteil enthält, wobei der Kontrollteil außerdem ein Versetzungswort für die Synchronisation der Blöcke enthält und wo für jeden bestimmten Block ein erstes und ein zweites Versetzungswort verwendbar ist, mit dem Merkmal, daß für die erste Sequenz einer Meldung das erste Versetzungswort verwendet wird und für die anderen Sequenz dieser Meldung das zweite Versetzungswort verwendet wird, und daß diese Einrichtung mit einem Decodierer versehen ist, um das Versetzungswort einer erhaltenen Meldung zu decodieren und um bei der Decodierung eines ersten Versetzungsworts ein Positioniersignal zu erzeugen, und die Einrichtung einem mit dem Decodierer verbundenen Sequenzzähler enthält und der Sequenzzähler unter der Kontrolle eines Positioniersignals positionierbar ist.
  12. Eine Einrichtung laut Anspruch 1, mit dem Merkmal, daß die Auswahleinheit (43) mit Mitteln versehen ist, die die Auswahl zwischen einem Schnittpunkt und/oder einer Verbindung von mindestens zwei Zonen ermöglichen.
  13. Eine Einrichtung laut Anspruch 1, mit dem Merkmal daß die Auswahleinheit (43) mit einer Taste versehen ist, um nach dem Erhalt einer Meldung für eine ausgewählten Zone die direkte Übermittlung zu aktivieren.
  14. Eine Einrichtung laut Anspruch 1, in der die Meldung mehrere Abschnitte enthält, in denen jeweils Codewörter enthalten sind, die verschiedene Teile der Information der Meldung verkörpern, mit dem Merkmal, daß die Einrichtung mit einem Umcodierspeicher versehen ist, der mit der Anzeigeeinheit verbunden und von verschiedenen Codewörtern adressierbar ist und in dem die anderen Codewörter für die Anzeige der Meldung gespeichert werden.
  15. Eine Einrichtung laut Anspruch 14, in der ein zweiter Abschnitt der Meldung in einem Bereich in der Zone aufgenommen ist, auf die sich die Meldung bezieht, mit dem Merkmal, daß in der Umcodiertabelle in der Form anderer Codewörter Bereiche mindestens eines Landes gespeichert sind, auf das sich die Straßennachricht bezieht.
  16. Eine Einrichtung laut Anspruch 15, mit dem Merkmal, daß jede Meldung einen dritten Abschnitt enthält, der einen Versetzungswert enthält, um einen anderen relativen Bereich in bezug auf den im zweiten Abschnitt aufgenommenen Bereich anzeigen zu können, und ist die Einrichtung mit einem Adressengenerator versehen, um für den Umcodierspeicher auf der Grundlage des zweiten und dritten Abschnitts der Meldung eine Adresse zu bilden.
  17. Eine Einrichtung laut Anspruch 15, mit dem Merkmal, daß der zweite Abschnitt in einen ersten Unterabschnitt unterteilt ist, der einen Streckenabschnitt in der im ersten Abschnitt aufgenommenen Zone anzeigt, wobei ein zweiter bzw. ein dritter Unterabschnitt einen ersten bzw. zweiten Bereich auf dem im ersten Abschnitt angezeigten Unterabschnitt anzeigt, und daß der Umcodierspeicher in n Abschnitte unterteilt ist und eine erste Adressenliste enthält, die die erste Adresse jedes der n Abschnitte anzeigt, wobei ein Bereich in der ersten Adressenliste durch den ersten Abschnitt der Meldung adressierbar ist, jeder der n Abschnitte in m unterabschnitte unterteilt ist und eine zweite Adressenliste enthält, die vom besagten ersten Unterabschnitt adressierbar ist, und erste Adressen jedes der m Unterabschnitte enthält, wobei ein Bereich in den m Unterabschnitten vom zweiten oder dritten Unterabschnitt adressierbar ist.
  18. Eine Einrichtung laut Anspruch 16 oder 17, mit dem Merkmal, daß der Umcodierspeicher eine Erweiterungstabelle und einer Orstabelle enthält, die Erweiterungstabelle für jede vom ersten und dem zweiten und/oder auf Grundlage des ersten, zweiten und dritten Abschnitts gebildete Adresse eine Adresse enthält, die einen Bereich in der Ortstabelle anzeigt.
  19. Eine Einrichtung laut Anspruch 1, mit dem Merkmal, daß die Einrichtung gemäß der Erfindung an ein Straßennavigationssystem für Fahrzeuge verbunden ist, wobei das Navigationssytem mit Mitteln ausgerüstet ist, um eine Strecke zwischen einem Startpunkt und einem Zielpunkt zu bestimmen, mit dem Merkmal, daß das Navigationssytem mit Mitteln ausgerüstet ist, um der Auswahleinheit mindestens eine über die besagte Strecke durchquerte Zone zu übertragen und um die Meldungen in bezug auf die bestimmte Zone zu erhalten, wobei die besagten Mittel zur Streckenbestimmung vorgesehen sind, um die erhaltenen Meldung zu analysieren und um in der erhaltenen Meldung zu erkennen, ob in der bestimmten Zone ein Verkehrsproblem besteht und um im Falle von Problemen eine neue Strecke zu bestimmen.
EP87200845A 1987-05-09 1987-05-09 Einrichtung für Empfang und Verarbeitung von Strassennachrichtenmeldungen Expired - Lifetime EP0290679B2 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP87200845A EP0290679B2 (de) 1987-05-09 1987-05-09 Einrichtung für Empfang und Verarbeitung von Strassennachrichtenmeldungen
DE3752122T DE3752122T3 (de) 1987-05-09 1987-05-09 Einrichtung für Empfang und Verarbeitung von Strassennachrichtenmeldungen
AT87200845T ATE158886T1 (de) 1987-05-09 1987-05-09 Einrichtung für empfang und verarbeitung von strassennachrichtenmeldungen
US07/190,542 US4907159A (en) 1987-05-09 1988-05-05 Device for receiving and processing road information
CA000566001A CA1323426C (en) 1987-05-09 1988-05-05 Device for receiving and processing road information
AU15840/88A AU614745B2 (en) 1987-05-09 1988-05-09 Device for receiving and processing road information
JP63110638A JP2720975B2 (ja) 1987-05-09 1988-05-09 道路情報メッセージ受信処理装置

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EP87200845A EP0290679B2 (de) 1987-05-09 1987-05-09 Einrichtung für Empfang und Verarbeitung von Strassennachrichtenmeldungen

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EP0290679B2 (de) 2003-08-06
ATE158886T1 (de) 1997-10-15
DE3752122T3 (de) 2004-07-29
AU614745B2 (en) 1991-09-12
JP2720975B2 (ja) 1998-03-04
AU1584088A (en) 1988-11-10
DE3752122T2 (de) 1998-04-02
EP0290679A1 (de) 1988-11-17
JPS63294022A (ja) 1988-11-30
DE3752122D1 (de) 1997-11-06
CA1323426C (en) 1993-10-19
US4907159A (en) 1990-03-06

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