WO2001016914A1

WO2001016914A1 - Method and arrangement for processing a status description of a system

Info

Publication number: WO2001016914A1
Application number: PCT/DE2000/002176
Authority: WO
Inventors: Christian Kleegrewe; Michael Berger
Original assignee: Siemens Aktiengesellschaft
Priority date: 1999-08-30
Filing date: 2000-07-04
Publication date: 2001-03-08

Abstract

In the method and arrangement for processing a status description of a system, said status description is received. In order to process the status description, a status variable is extracted therefrom. A generic term is assigned to the extracted variable. In addition, status description is hierarchically represented by means of the generic term thus assigned.

Description

description

Method and arrangement for processing a state description of a system

The invention relates to a method and an arrangement for processing a state description of a system.

[1] discloses an arrangement and a method for transmitting a status description of a system, which status description is a traffic report and which system is a traffic situation.

In the arrangement known from [1], a traffic message is transmitted in accordance with a Radio Data System traffic messaging channel standard (RDS-TMC standard).

A traffic announcement is coded and transmitted by a broadcasting station which is set up to transmit traffic avoidance coded according to the RDS-TMC standard. The transmitted traffic report is received and processed further by a special receiver which is set up to receive a traffic report transmitted in the RDS-TMC standard.

For this purpose, the receiver has a decoder with which the transmitted and received traffic announcement is decoded. Using a suitable display device, for example a display or a voice module, a decoded traffic message is displayed to a user optically or acoustically.

A traffic report transmitted according to the RDS-TMC standard has an indication of a location of a traffic disruption and an indication of a type and extent of the traffic disruption. The traffic announcement is coded in such a way that a numerical numerical code is assigned to the information about the location of the traffic disruption and the information about the type and extent of the traffic disruption. When the traffic announcement is transmitted, the numerical numerical codes are transmitted to the recipient.

The traffic announcement is decoded in the receiver in such a way that the traffic announcement is reconstructed using the transmitted numerical codes and a table stored in the receiver. For this purpose, the table contains information about all the numerical numerical codes available within the system and the information about the location of a traffic disruption assigned to the number codes as well as information about the type and extent of the traffic disruption assigned to the number codes.

The reconstructed traffic report is visually displayed to the user and / or transmitted acoustically.

Such a traffic message is, for example, "Autobahn A4 junction Weisweiler 4 km traffic jam".

A method for transmitting an RDS signal is known from [2].

In the transmission method known from [2], a digital data signal is transmitted on a subcarrier of 57 kHz via an FM radio transmitter, with a 2-sideband amplitude modulation of the 57 kHz carrier using the diphase-coded data signal.

The transmission method known from [2] is used in particular for the transmission of RDS information, for example traffic information, by a traffic broadcasting system. The known arrangements and methods have in particular the disadvantage that a description of the state of a system, in particular a traffic report, is only insufficiently possible.

The invention is therefore based on the problem of specifying a method and an arrangement for processing a state description of a system, with which method and with which arrangement a representation of a state description which is improved in relation to the known methods and arrangements with regard to user friendliness is possible.

The problem is solved by the method and the arrangement with the features according to the independent claims.

In the method for processing a status description of a system, the status description is received. As part of the processing of the status description, a status variable is extracted from the status description and a generic term is assigned to the extracted status variable.

Furthermore, the description of the state is presented in a hierarchical order using the assigned generic term.

The arrangement for processing a status description of a system has a receiver with which the status description can be received. Furthermore, the arrangement has a processing unit which is set up in such a way that a state variable can be extracted from the state description and a generic term can be assigned to the extracted state variable. Furthermore, the arrangement has a display unit with which the status description can be displayed in a hierarchical order using the assigned generic term.

Under a state description of a system is a description of a state of a system using To understand state variables, for example numerical variables and / or descriptive terms and / or graphic representations.

Preferred developments of the invention result from the dependent patent claims.

The further developments described below relate both to the method and the arrangement for processing a status description.

The method and the arrangement for processing a status description and further developments described below can be implemented both in software and in hardware, for example using a special electrical circuit.

A traffic situation is preferably described by the status description.

In order to further improve the user-friendliness, the condition description is selected (filtered) with regard to a predefinable criterion in a further training.

A further simplification is achieved by using the extracted state variable as a generic term.

A further development is preferably used in a traffic radio system.

In particular, it is possible to use a method according to a further development in the context of a broadcasting system.

In a further embodiment, a selection process (filter) is provided, with which the state description can be selected (filterable) with regard to a predefinable criterion. An embodiment of the invention is shown in figures and will be explained in more detail below.

Show it:

Figure 1: Traffic radio system according to an embodiment;

FIG. 2: procedural steps in the processing of a traffic report;

Figure 3: an arrangement for hierarchical display of traffic reports according to the embodiment;

FIG. 4: a sketch which illustrates the processing of traffic reports;

Figure 5: Tables for coding and decoding traffic reports.

Exemplary embodiment: traffic radio system

1 shows components of a traffic radio system which is used in the context of a broadcasting system.

The basic structure of the traffic radio system is designed according to the arrangement of an RDS-TMC system as described in [1].

The traffic radio system 100 according to FIG. 1 has a radio transmitter 101 which, together with a conventional radio program, transmits or transmits traffic reports. For the joint transmission or for the common transmission of the usual radio program in the form of radio signals together with the traffic reports in the form of traffic radio signals, the radio transmitter 101 is equipped with a correspondingly configured transmitter 102.

The technical principle for the joint transmission and for the joint transmission of radio signals and traffic radio signals is described in [2] and implemented in the arrangement according to FIG.

For the transmission of a traffic report in the form of digital signals, the traffic report is encoded in the transmitter 102 in accordance with an RDS-TMC standard. The RDS-TMC standard is explained in FIG. 5 and is described in more detail below.

1 shows a motor vehicle 103 with a car radio 104. The car radio 104 has a receiver 105 which is set up in such a way that the broadcast radio signals and traffic radio signals can be received.

Furthermore, the receiver 105 is set up in such a way that the traffic radio signals received together with the radio signals can be separated from the radio signals and the separated signals can then be processed independently of one another.

During the processing, the traffic radio signals are decoded in the receiver, the original traffic message being reconstructed. The reconstructed traffic report is processed in accordance with a method shown in FIG. 2, which is explained in more detail below.

As part of the processing, a status variable is extracted from the traffic report. A generic term is assigned to the extracted state variable. Furthermore, the traffic report is hierarchically represented using the assigned generic term according to FIG. 3. A traffic announcement is visualized using a display 106 which is connected to the receiver 105. Furthermore, a loudspeaker 107 with a voice module 109 is provided for an acoustic representation of a traffic announcement, which is also connected to the receiver 105.

2 shows a flowchart which illustrates the principle of processing traffic reports in accordance with the exemplary embodiment. The traffic reports processed in accordance with the flowchart are described in FIG.

In a first step 210, traffic reports which are transmitted by the radio station in the form of digital traffic radio signals are received by the receiver.

Two such traffic reports 401, 402 are shown in FIG. 0

Traffic announcement 1: "Autobahn A4, junction Weiler, direction Düren, 4km traffic jam" (401);

Traffic announcement 2 401: "Autobahn A8, junction Adelshausen 5 sen, direction Dasing, smoothness due to freezing moisture, several accidents have already occurred, please switch to the federal road B300" (402).

In a second step 220, the traffic avoidances received are each decoded and, after the decoding, are in text form as a description of the status of a traffic situation.

In the second step 220, the traffic reports are processed in such a way that a short description is formed for each traffic report. For this purpose, two partial reports, a location and an event description, are extracted from a traffic report, which is composed of different partial reports.

The event names are each assigned a predefinable generic term, which is stored and which in individual cases matches the extracted event name. The location and the generic term are combined to the short description. In Fig. Are the

Abbreviations 411, 412 of the two traffic reports 401, 402 are shown:

Short description of traffic announcement 1 401: "Autobahn A4 (location), traffic jam (generic term)" (411);

Short description of traffic report 2 402: "Autobahn A8 (location), smoothness (generic term)" (412).

As part of the further processing, the traffic reports are hierarchically structured using their respective short names. For this purpose, further partial reports of the respective traffic reports are assigned to different hierarchically tiered levels.

First levels 421 and 422 are each assigned further location information to the respective traffic report.

Partial reports of the first level 421 of traffic report 1: "Junction Weiler, direction Düren";

Partial reports of the first level 422 of traffic report 2: "Junction Adelshausen, direction Dasing".

Second levels 431 and 432, which are hierarchically subordinate to the first levels 421 and 422, become partial reports assigned to traffic reports 1 and 2, which partial reports relate to the event:

Partial reports of second level 431 of traffic report 1: "4 km traffic jam";

Partial reports of the second level 432 of traffic report 2: "Smoothness due to freezing moisture".

Depending on the information content of a traffic report, further sub-reports of a traffic report are assigned to further hierarchically subordinate levels of the previous level.

A third level 442 and a fourth level 452 for traffic report 2 402 are shown in FIG.

Partial reports of third level 442 of traffic report 2 402: several accidents have already occurred;

Partial reports of the fourth level 452 of traffic report 2 402: please switch to the federal road B300.

In the second step, the hierarchically structured traffic reports are selected (filtered) using their respective location information (local selection) and / or transmission times (temporal selection).

A temporal selection is understood to mean that only before traffic announcements are displayed that have been received within a predetermined time interval.

Local selection is understood to mean that only those traffic reports are displayed which relate to a traffic event whose event location is relevant for the recipient. In a third step 230, the selected traffic reports are shown using the display 106. The selected traffic reports are displayed in accordance with the hierarchical structure of the traffic reports.

3 shows a display for displaying the selected, hierarchically structured traffic reports.

3 shows a screen 301 and an operating device 305 connected to the screen. The operating device 305 has various operating buttons 306, 307 with which a marking 304 on the screen 301 can be moved.

The short descriptions 302, 303 of the filtered traffic reports are displayed to the user on the screen 301. Using the marking, which can be controlled by the control buttons 306, 307, a short description of a traffic announcement can be marked and the traffic announcement can thus be selected.

By pressing the control button 307, the selected traffic report can be displayed in such a way that each time the control button 307 is pressed, the partial reports of a traffic report assigned to a level are displayed on the screen 301.

The user can use the control button 307 to choose whether the partial messages of a hierarchical level above or below the current level should be displayed.

5 shows mechanisms for coding and decoding a traffic announcement and corresponding formats, which are based on the RDS-TMC standard. FIG. 5 shows various tables 500 using which a traffic announcement is encoded in the transmitter and correspondingly decoded in the receiver.

A location table 501, a connection table 502, a direction table 503 and an event table 504 are stored in the transmitter.

The location table 501 is used for coding an indication of a highway. For this purpose, different motorways are listed in the location table 501, a code being assigned to each of the motorways listed.

The junction table 502 is used to encode information about a junction of a motorway. The structure of the connection point table 502 is implemented in accordance with the structure of the location table 501.

The direction table is used to code a direction of travel on a motorway. The structure of the direction table 303 is implemented in accordance with the structure of the location table 501.

The event table 504 is used to encode a traffic event. For this purpose, various traffic events are listed in the table, each of which includes a numerical size specification for the description of the respective traffic event. A code is assigned to each traffic event listed.

It should be noted that the coding tables described represent only an extract from possible coding tables for coding a traffic announcement, and are not to be understood as conclusive.

With an increasing information content of a traffic announcement more, according to the tables described structured tables used for coding the traffic announcement.

The coding of a traffic announcement is illustrated by the following message "Autobahn A4, junction Weiler, direction Düren, 4 km traffic jam". The code A004B001C001D004 is assigned to this traffic report in accordance with the tables shown in FIG. The code is formed as follows: A004: A4 motorway; B001: Weiler junction; C001: towards Düren; D004: 4 km traffic jam.

The code determined for the traffic report is digitally transmitted and decoded in the receiver. For this purpose, the same tables, using which a traffic announcement was coded, are stored in the receiver.

The transmitted code is decoded in such a way that the original traffic report is reconstructed in text form (see above) using the tables stored in the receiver.

The short description "Autobahn A4 (location), traffic jam (generic term)" (cf.

Fig.) Extracted. Further partial reports of the traffic report are assigned to different hierarchical levels.

The hierarchically structured traffic report is visually displayed to the recipient and / or transmitted acoustically. The following publications are cited in this document:

[1] Editor Kurzzeichen UV, "Take me on a trip", magazine teleTraffic, issue 1-2 / 99, pp. 36/37, 1999

[2] DE 35 36 820 C2

Claims

claims

1. Method for processing a status description of a system, a) in which the status description is received; b) in which a state variable is extracted from the state description; c) a generic term is assigned to the extracted state variable; d) in which the status description is hierarchically presented using the assigned generic term.

2. The method of claim 1, wherein a traffic situation is described using the condition description.

3. The method according to claim 1 or 2, in which the state description is selected with regard to a predeterminable criterion.

4. The method according to any one of claims 1 to 3, in which the extracted state variable is used as a generic term.

5. The method according to any one of claims 1 to 4, used in the context of a traffic radio system.

6. The method according to any one of claims 1 to 5, used in the context of a broadcasting system.

7. Arrangement for processing a status description of a system, a) with a receiver with which the status description can be received; b) with a processing unit which is set up in such a way that a state variable can be extracted from the state description and a generic term can be assigned to the extracted state variable; c) with a display unit with which the state description can be represented in a hierarchical order using the assigned generic term.

8. The arrangement according to claim 7, wherein the condition description is a traffic report.

9. Arrangement according to claim 7 or 8, with a filter with which the state description can be selected with regard to a predefinable criterion.

10. Arrangement according to one of claims 7 to 9, used in the context of a traffic radio system.

11. Arrangement according to one of claims 7 to 10, used in the context of a broadcasting system.