EP0915445A2 - System zur Ermittlung von Verkehrsinformationen - Google Patents
System zur Ermittlung von Verkehrsinformationen Download PDFInfo
- Publication number
- EP0915445A2 EP0915445A2 EP98118423A EP98118423A EP0915445A2 EP 0915445 A2 EP0915445 A2 EP 0915445A2 EP 98118423 A EP98118423 A EP 98118423A EP 98118423 A EP98118423 A EP 98118423A EP 0915445 A2 EP0915445 A2 EP 0915445A2
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- European Patent Office
- Prior art keywords
- data
- traffic
- unit
- information
- message
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
Definitions
- the invention relates to a system for determining Road routes, in particular traffic information related to motorways.
- DE-P 44 08 547 describes a method for traffic detection and traffic situation detection on highways, preferably Motorways, known.
- Cross sections are set up for track-related measuring points, with traffic sensors, such as induction loops, for vehicle detection and with a traffic data processing device are provided.
- traffic data such as vehicle speed, traffic volume and traffic density determined and from this determined traffic parameters in one Traffic data processing formed.
- Each form two neighboring measuring points a measuring section with a certain Track length. From the traffic data of two such measuring points traffic parameters are formed.
- These are one Speed density difference, calculated from local traffic data medium speed and traffic density, a trend factor, determined over a certain period of time the ratio of the traffic volumes of both measuring points as well a traffic intensity trend.
- Using a Fuzzy logic the probability of a critical traffic situation derived. When a probability threshold is reached can then be a control signal for a Variable message signs are generated.
- detectors are also known, which Presence and the speed of a moving object can capture.
- detectors work According to a passive infrared process, which can also be used with other methods can be combined.
- No method is known to date, traffic information covering the entire area to record and evaluate. Especially no methods are known to determine the traffic information route section variable, event-oriented if necessary and enable with little data transfer effort.
- a low data transmission effort is on the one hand Implementation of an energy-saving process required on the other hand, as transparent and easy to maintain as possible Generate databases.
- the present invention is based on the object of providing a comprehensive traffic information system which, with simple sensors and low data transmission effort, provides reliable and sufficiently meaningful data bases for different traffic information services.
- the technical solution of this object a system for determining stretches of road, in particular motorways, related traffic information, each with at least one detection unit, one input data communications unit, a data processing unit for generating signaling records, a message management unit for conditioning signaling records, an output data communications unit is proposed with the invention, for sending information to distributors and a visualization unit for displaying information.
- the system according to the invention is thereby advantageous further developed that this recorded an archive for and / or processed information, a system monitoring unit, a data flow monitoring unit, a data processing monitoring unit as well as, if applicable Has time control unit for monitoring message sequences.
- the visualization advantageously takes place using window technology and the system includes a dialog mask system.
- the invention discloses a system for determining on Road routes, especially motorways, related traffic information, using local detectors Acquisition cross-sections formed, traffic-related measured values recorded, preprocessed by means of local computers and on a Predefined data protocol standardized, aggregated and by radio transferred to a higher-level data processing system become.
- the invention enables the implementation of a step organized acquisition and processing system. Thereby can different traffic models to different Levels are applied, some of which are local, some of which are central. The advantages are that short term results can be achieved by expanding into the individual Levels are consolidated and refined. Through the dissolution there is a high level in individual subtasks or levels Degree of flexibility and reliability through the Formation of fallback levels. Through the local pre-analysis of the Traffic gives rise to extremely energy-saving, event-oriented data transmission to the parent Data processing systems or centers.
- the invention proposes that fixed detectors positioned at junctions, nodes and the like become. It is also proposed that the Arrangement density of the fixed detectors depending is determined by traffic expectation estimates. So leave through the arrangement of many local detection systems Build comprehensive networks. It is also with the invention possible to organize an overall network structure. On traffic technology local detectors and critical positions Preprocessing computer arranged, preferably via radio in digital technology the data to higher-level data processing systems forward or control centers. There you can then other traffic models are applied to the data.
- Adjacent local detection cross sections can be a so-called route-related level of service in a higher-level Data processing system or one of the entire network assigned headquarters are determined.
- Measured data After a detector, for example a passive infrared detector, Measured data are delivered, they will be preprocessed, for example by calculating mean values, Plausibility checks and trend factor determinations carried out become. From the changes in the data or the data state codes themselves are then determined, for example in the form of a numerical value for conditions such as free traffic flow, Traffic jam, stop and go, traffic jam or standstill etc. Evaluation cycles can, for example, every 1 to 5 minutes to get voted. However, the evaluation cycle can be variable be determined, for example depending on the status codes or the traffic conditions. The same applies the data transfer rate, which depends, for example of the determined status code is used, for example one transmission every 30 minutes when traffic is free with averaging every 5 minutes. Depending on the fault condition the transmission density can be increased. In doing so the data transfer rates of adjacent acquisition cross sections matched to each other.
- a detector for example a passive infrared detector
- Measured data are delivered, they will be preprocessed, for example by calculating mean values, Plaus
- the measured values can be recorded in relation to the lane, but what is not absolutely necessary, other detection cross sections can also be used To be defined. It is also fundamental possible, vehicle type differentiation values, for example Detect trucks, cars and the like.
- the invention proposes that superordinate data processing systems at least for those grouped together neighboring detection cross sections can be assigned.
- a control center can act as a higher-level data processing system for all detection cross sections of a network or for several higher-level data processing systems can be assigned.
- the network organization can be done in whatever stages flexibility and data security are affected. Here economic parameters can be used as a boundary condition become.
- source-to-target relationships by analyzing the data of all acquisition cross sections of a network determines that the data for route search, evaluated for the output of traffic management information, subjected to statistical analysis for clarification and that the data for making traffic development forecasts be evaluated.
- the invention provides a system for different Types and qualities of traffic information data to provide.
- the main task is to provide such data to prepare for the motor vehicle driver and this provide appropriate information.
- It can be for example, travel time displays, route displays, traffic forecast, Act traffic jams and the like.
- information displays arranged on which the motor vehicle driver their planned routes and travel time information are displayed to get. You can then, for example, under different Alternatives choose the fastest route. Additionally or alternatively, indications of traffic jam developments, Probabilities related to further development on the upcoming route section and the like are displayed.
- the range of applications is extensive.
- the invention provides an extremely flexible system, with which by linking different traffic models an almost network-wide, nationwide Traffic information system is buildable, which data for provides a wide variety of information purposes. It can be conventional and already known models and processes are used and be combined. Forecasts can be curve-based Forecasts at measuring points, model-based forecasts for Sections and meshes and additions of immeasurable effects using artificial intelligence. For the calculation Standard formulas of average values are used.
- the system can be supplemented by systems that are dependent on the time of day Standard additional information, for example time of day and route-related travel time information, bring in.
- a central traffic computer is installed for traffic data acquisition, traffic data archiving, traffic data visualization and analysis of the traffic situation.
- An X25 connection for data transmission with a Modacom network is installed for this.
- the control center receives the data of the external measuring points via this data connection.
- the hardware of the control center consists of a PC as a communication computer for the interface to the Modacom network (X25 / Modacom) and a workstation as a traffic and visualization computer.
- the aforementioned computer components are interconnected in a LAN.
- An X25 connection is provided for data transmission with the outstations (traffic detection).
- Data telegrams are identified by data type numbers, Applications through system-unique application and computer numbers.
- In the distribution table is stored for a data type to which applications it should be sent.
- the application is used for data flow control. She gets via the distributor the data telegrams, their data flow to monitor is. Which is stored in the parameterization file Data types in which time grid should be monitored.
- the actions that are carried out (sending a telegram), if the receipt of a telegram e.g. for one Measuring cross-section longer than the associated time grid fails to appear, are in another file, according to Actions for the reporting system and the visualization separately parameterized, defined.
- sending a telegram if the receipt of a telegram e.g. for one Measuring cross-section longer than the associated time grid fails to appear, are in another file, according to Actions for the reporting system and the visualization separately parameterized, defined.
- the reporting system a message telegram is sent, based on the missing data type indicates and specifies for the specific measuring cross section, how long it has not been received.
- the advantage of data flow control is that of data flow monitoring, already related to by the communication module the aggregation module is done that way the telegrams via the distributor and thus the communication system is also monitored.
- the computer time is set daily by a radio clock driver and one connected to a serial interface Radio clock synchronized.
- the cron is the central point of the UNIX system to kick off cyclical applications.
- the time when which Application or UNIX batch file is to be executed, is parameterized in a separate file for each UNIX user.
- the message converter mekonv selects from those of the message system generated telegrams with messages those that a Statement about the accessibility of an aggregation module do.
- the messages are converted into special telegrams and sent to the visualization (via the distributor), so that the state in the detailed information about measurement cross sections and sections can be viewed. Every message is repeated cyclically (approx. every 15 minutes) so that after restarting the visualization after some time current States can be displayed.
- the communication module is for data transfer between the Modacom server on the gateway computer and the others Components of the central computer, as shown in Figure 2 is shown.
- the Modacom server of the gateway computer handles independently communication with the Modacom network via Datex-P / X.25. It provides the data received from the aggregation modules, reduced by appropriate protocol information about which TCP / IP socket interface available to the communication module.
- the communication module has the following tasks:
- the traffic data is sorted according to AM-ID, the one in the data block Acquisition time and DE an acquisition interval assigned and saved in the internal data image.
- AM-ID the one in the data block Acquisition time
- DE an acquisition interval assigned and saved in the internal data image.
- DE no the assigned measurement cross section determined.
- the AM After a configurable time (e.g. 11 minutes) If no data is received from an AM, the AM is called noted and reported unusual.
- a configurable time e.g. 11 minutes
- the status of the DE contained in the data block is stored in the internal Image carried. Results from the data received a change, it will be with a telegram data type Error status of the lanes.
- the communication module also reports the status every hour to the reporting system for comparison of the message image with the internal image.
- the status of the ASIM detectors, which they report to the SiAM and is also contained in the status byte, is used by the communication module prepared for a message and sent to the message manager Posted.
- the communication module After the communication module has started up, it sends to everyone AM a query telegram to determine the traffic-related AM parameters and status identifiers when the first received telegram of an AM is not a status telegram. The for further processing see 'Status data of an AM'.
- Modacom server Operating reports and news about Modacom and TCP / IP connections are logged on the Modacom server. Only Modacom-specific are connected to the communication module Messages about the delivery of a data packet to a SiAM modem passed on.
- the raw traffic data received is made more traffic-related Process evaluated.
- the goal is the investigation selected traffic parameters.
- the evaluation takes place in three separate stages. The steps differ in the complexity of the methods used and thus in the quality and type of the calculated traffic parameters.
- the recorded traffic data are recorded on the online system processed two ways.
- the Raw data manipulated by a module for single-track simulation shown in Figure 4
- the raw simulation data generated in this way are then evaluated in parallel with the online data. Online and simulation area of the traffic models work independently of each other.
- the input values of all stages are the measured values of the detection cross sections.
- Traffic model level 1 (shown in Figure 5)
- the missing MQ values are not interpolated. The model then works as if this MQ does not exist in the system. If the missing MQ is the only one in a section the section is therefore treated as a section without MQ.
- Traffic model level 2 (shown in Figure 6)
- the missing MQ values are not interpolated. The model then works as if this MQ does not exist in the system. If the missing MQ is the only one in a section the section is therefore treated as a section without MQ.
- Level 3 traffic model (shown in Figure 7)
- Section is the distance between two nodes. Segment "is a part of the distance between two measuring cross sections.
- ESE extended situation detection
- ESE refers to sections that range from measuring cross-section to measuring cross-section.
- These variables are transferred to sections of the route which relate to the area between two nodes.
- the message manager shown as a structogram in FIG. 8 is for the receipt, processing and transfer of responsible messages that are sent from processes to the message system become. It serves as the central administrative office of Data that the operator and observer the correct or incorrect Show working of the system.
- the message texts to be output are defined by the message number and parameters for the replacement of actual parameters in a base defined by message texts in the message text file.
- the message manager consists of the message preparation components (MEAU) and message distribution (MEVT). Between these The MESALOG message log system is connected between applications, that is responsible for the preparation of the message texts is.
- MEAU accepts the message telegrams from the applications the SIPAX BW.KOM interface and prepares them contained actual parameters for the transitions to MESALOG on.
- MEVT feeds the finished message texts for further processing into the system.
- the visualization serves to present the results online of the various models for determining the travel time bands (Cruising speed in the section) and densities Display of detailed information of the sections and measuring cross sections, as well as to display traffic and operational reports.
- the process image is created when the visualization is started and with the static information from the runtime files provided.
- All data sent during operation for visualization are stored by the PAM in the process image.
- the process image is kept in a shared memory. All processes resulting from this pool of information and data need this shared memory in their address space involve.
- Named pipes are used for inter-process communication within the visualization system: Pipe Define source aim description appl_to.dapo Q_APPL_DAPO PBM DAPO Start telegram appl_to.gui Q_APPL_GUI PAM, MEM GUI Update, notifications appl_to.mem Q_APPL_MEM all applications MEM internal visualization messages gui_to.pbm Q_GUI_PBM GUI PBM Start telegram dapi_to.pam Q_DAPI_PAM DAPI PAM Telegrams in internal format
- the input telegrams are converted into the internal data format and the net data are object-related in the process image filed.
- the update is triggered by an update Graphic process (GUI) informed about the new data. Messages are passed on to the GUI as plain text.
- GUI Graphic process
- the input data are visualized in the following form:
- the assigned route section is colored with the color set for error detection.
- the error status is displayed in the detailed info mask.
- the raw traffic data is displayed in the detailed info dialog mask alphanumeric (table) and graphic (Traffic data recorder) shape is displayed. Is the info mask appears when new data is received, the display is updated.
- the message text is in the message line and the message overview entered for operating messages. Is the message as A receipt form is also marked with a receipt faded in. Is the parameterized number message window opened at the same time is reached newly arriving messages requiring acknowledgment are buffered. The next message is only after acknowledgment of a message displayed from the buffer.
- the message text is in the message line and the message overview entered for traffic reports. Is the Message marked as requiring a receipt will be added a receipt form is displayed. Is the parameterized Number of simultaneously opened message windows reached, this way, newly arriving messages requiring acknowledgment are buffered. Only after acknowledging one message is the next one Message from the buffer displayed.
- the data is alphanumeric Shape. Is the info mask when new data is received is displayed, the display is updated.
- the assigned section in the overview displays "Travel speed standard” and “Density standard” is colored according to the set threshold values and color codes.
- the data is displayed in the detailed information mask in alphanumeric form. If the info mask is displayed when new data is received, the display is updated.
- the archive receives data and message telegrams via message queue and writes them to archive files, which are stored in the so-called Archive area "of the hard disk.
- a backup mechanism is activated via cron, which compresses the data of the previous day.
- the data compressed in the can be saved on DAT tape.
- the backup is initiated manually by the operator.
- the following types of data are processed by the archive.
- the results of the single-track simulation are under own Data types sent.
- the archive differentiates based on the data type in which archive area a data record is to be archived is.
- the lane acquisition of traffic data is done by feeding of manipulated raw data simulated (see Figure 10). To a lane is selected for each MQ from the recorded data, from whose data the traffic data of the total cross-section be extrapolated. The data set determined in this way is distributed to the traffic models and processed there. The Processing of the extrapolated data in the traffic models does not differ from the processing of online data.
- Archived data can be read in on an offline computer and fed back to the traffic models (see figure 11).
- the processing differs in the traffic models not from processing in the online case.
- the time range to be simulated is controlled by a sequence control module selected. Operation of the offline simulation is controlled at the shell level.
- An X-Window System is a graphical standardized window system and thus an international defacto standard for UNIX systems. It is a computer and operating system independent Window system with graphical user interface, that the simultaneous work with several processes enables. It is color graphics capable, works object-oriented and mouse supported.
- the interface is divided into a menu bar, two interaction areas and a message line. Via the menu bar the operator selects the individual graphical representations, Call up detailed information, display messages etc. In one Interaction area, the results of each procedure represented graphically. In the message line the last incoming traffic or operational message displayed.
- the representation in an interaction area takes the form a schematic overview in Figure 12 of the highway network in the Cologne / Bonn area.
- the highways are in the area of the test area divided into sections based on the incoming data are colored gradually.
- a map can be shown in the background of the interaction areas (menu item Graphics ⁇ Map ).
- the display can be based on data from full-track recording or based on single-track simulation.
- the display of Simulation data is obtained by coloring the heading of the corresponding interaction area.
- the currently set threshold values can be displayed via the menu item Graphics ⁇ Legend ... Threshold values and color codes are defined in the application resource file.
- symbols for displaying traffic incidents are shown at the corresponding points. The symbols show an unrest / traffic jam detection (from level 2) and a situation number (from level 3). Symbols for traffic disruptions that result from data from the full-track detection are only displayed in the graphics for the original data. Symbols for faults due to simulation data are shown in the graphics for the online simulation. A direct comparison is therefore possible.
- the symbols are structured as shown in Figure 13:
- a section is defined by the so-called "Rubber banding". With the help of the mouse, a rectangle is created around the desired image section. The defined one Section is then shown enlarged.
- a pop-up menu appears on the screen at the current position of the mouse pointer.
- the enlargement or reduction factor is the zoom factor set in the graphic / layout mask.
- For the sensitive objects in the overview displays can be selected with the left or right mouse button each in connection with a modifier key (SHIFT or CTRL) Additional information can be called up.
- a short info on Object can be obtained by clicking with the right mouse button without using a modifier.
- the results of the various models for determining travel speeds and densities are visualized by coloring the corresponding sections of the route.
- the input data are divided into stages based on threshold values. After selecting this menu item, a mask shown in FIG. 15 is displayed in which the currently set color codes and threshold values are displayed.
- Operating messages are messages about detected device faults, i.e. External system malfunctions or internal system errors.
- the operator receives important messages in a manner shown in FIG presented message dialog for confirmation.
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Abstract
Description
Die Hardware der Zentrale besteht aus einem PC als Kommunikationsrechner für die Schnittstelle zum Modacom-Netz (X25/Modacom) und einer Workstation als Verkehrs- und Visualisierungsrechner. Die vorgenannten Rechnerkomponenten sind in einem LAN miteinander verbunden. Zur Datenübertragung mit den Außenstationen (Verkehrsdetektion) ist ein X25-Anschluß vorgesehen.
- Verkehrsdaten nach Telegramm Datentyp 40 (neu, Ergebnisübergabe SiAM)
- Datenendgerätestatus nach BABSY/X-Telegramm Datentyp 12 (Fehlerstatusantwort der Fahrstreifen)
- für 'Wiederanlauf' : nach BABSY/X Telegramm Datentyp 300 (Fehlerstatusantwort der Streckenstation) und
- für 'spontane Statusmeldung' : in Meldungstelegramm an Meldungsmanager,
- qKfz
- Anzahl der Kfz im Erfassungsintervall
- qPkw
- Anzahl der Pkw Erfassungsintervall
- qLkw
- Anzahl der Lkw Erfassungsintervall
- vPkw
- Mittlere Geschwindigkeit der Pkw
- vLkw
- Mittlere Geschwindigkeit der Lkw
- sv
- Standardabweichung der Geschwindigkeiten
- b
- Belegungsgrad
- fBeleg
- Fehlerkennung für Belegungsermittlung
- fLänge
- Fehlerkennung für Längenermittlung
Pipe | Define | Quelle | Ziel | Beschreibung |
appl_to.dapo | Q_APPL_DAPO | PBM | DAPO | Starttelegramm |
appl_to.gui | Q_APPL_GUI | PAM, MEM | GUI | Aktualisierung, Meldungen |
appl_to.mem | Q_APPL_MEM | alle Applikationen | MEM | interne Visualisierungsmeldungen |
gui_to.pbm | Q_GUI_PBM | GUI | PBM | Starttelegramm |
dapi_to.pam | Q_DAPI_PAM | DAPI | PAM | Telegramme im internen Format |
Byte-Nr | Anzahl | Beschreibung |
0 | 2 | Anzahl Folgebytes |
2 | 2 | Auftragskennung |
4 | k | Nettodaten |
: | : | : |
l | m | Nettodaten |
Auftragskennung | Beschreibung |
VIS_MEM_MELDUNG | Aktualisierung Meldezeile/Meldeübersicht |
VIS_MEM_PAUSE | quittungspflichtige Meldung anzeigen |
VIS_PAM_AKTU | Aktualisierungsanstoß vom PAM |
VIS_PA_RESET | Prozeß-Abbild initialisieren |
VIS_START | Initialisierung der Visualisierung beendet |
Daten typ | Define | Beschreibung |
12 | FESTAN_MQ_VD_FS | Fehlerstatusantwort der Fahrstreifen |
40 | ERGBUE_MQ_VD_TMOB0 | Ergebnisübergabe |
400 | ML_MLDKLASSE_TEXT | (quittungspflichtige) Betriebsmeldung |
401 | ML_FEHLER_MLD | (quittungspflichtige) Fehlermeldung |
403 | ML_UNRUHE_STAU | (quittungspflichtige) VT-Meldung |
409 | ML_UNRUHE_STAU_SIM | (quittungspflichtige) VT-Meldung (f. Simulation) |
805 | STM_TMOB1 | Reisegeschwindigkeit und Dichte lokal |
806 | STM_TMOB2 | Reisegeschwindigkeit und Dichte Standard |
807 | STM_TMOB1_SIM | Reisegeschwindigkeit und Dichte lokal (SIM) |
808 | STM_TMOB2:SIM | Reisegeschwindigkeit und Dichte Standard (SIM) |
1505 | STM_ESE_SEG1 | Reisegeschw. Und Dichte ESE |
1508 | STM_ESE_ABS3 | VT-Situation aus ESE |
1509 | STM_ESE_SEG1_SIM | Reisegeschw. Und Dichte ESE (SIM) |
15012 | STM_ESE_ABS3_SIM | VT-Situation aus ESE (SIM) |
In der Detailinfomaske wird der Fehlerstatus angezeigt.
In der Detailinfomaske werden die Daten in alphanumerischer Form angezeigt. Ist die Infomaske beim Empfang neuer Daten aufgeblendet, wird die Anzeige aktualisiert.
- qKfz
- Anzahl der Kfz im Erfassungsintervall
- qPkw
- Anzahl der Pkw Erfassungsintervall
- qLkw
- Anzahl der Lkw Erfassungsintervall
- vPkw
- Mittlere Geschwindigkeit der Pkw
- vLkw
- Mittlere Geschwindigkeit der Lkw
- sv
- Standardabweichung der Geschwindigkeiten
- b
- Belegungsgrad
- fBeleg
- Fehlerkennung für Belegungsermittlung
- fLänge
- Fehlerkennung für Längenermittlung
- Datentyp STM_TMOB1 / STM_TMOB1_SIM
- Reisezeit im Streckenabschnitt
- Reisegeschwindigkeit im Streckenabschnitt
- Verkehrsdichte im Streckenabschnitt
- Datentyp STM_TMOB2 / STM_TMOB2_SIM
- Reisezeit im Streckenabschnitt
- Reisegeschwindigkeit im Streckenabschnitt
- Verkehrsdichte im Streckenabschnitt
- Stau im Streckenabschnitt
- Unruhe im Streckenabschnitt
- Bemessungsverkehrsstärke im Abschnitt
- Datentyp STM_ESE_ABS1 / STM_ESE_ABS1_SIM
- Reisezeit im Streckenabschnitt
- Reisegeschwindigkeit im Streckenabschnitt
- Verkehrsdichte im Streckenabschnitt
- Datentyp STM_ESE_ABS2 / STM_ESE_ABS2_SIM
- Verkehrssituationen mit Wahrscheinlichkeiten im Streckenabschnitt
- Datentyp ML_UNRUHE_STAU_IN / ML_UNRUHE_STAU_IN_SIM
- Klartextmeldungen über Unruhe-/Stauerkennung und ESE-Situationserkennung
- Datentyp ML_FEHLER_MLD_INPUT
- Klartextmeldung über den Betriebsablauf der Anlage (Detektorstörungen, Übertragungsstörungen, etc.)
- Meldungen:
- mld
- Dateiname
- ./ARCHIV/vd40/〈datum〉/〈id〉
- z. B:
- ./ARCHIV/19970129/23 = Rohwerte vom 29.01.97
- Dateiname
- ./ARCHIV/vd_st1/〈datum〉/〈id〉
- z. B:
- ./ARCHIV/vd_st1/19970129/23
= Ergebnisse VT-Stufe 1 vom 29.01.97 für MQ 23
- Dateiname
- ./ARCHIV/vd_st2//〈datum〉/〈id〉
analog VT1 - Dateiname
- ./ARCHIV/vd_st3s//〈datum〉/〈id〉
analog VT1 Dateiname ./ARCHIV/vd_st3d//〈datum〉/〈id〉
analog VT1
- Dateiname
- ./ARCHIV/mld/〈datum〉/std
- z. B:
- ./ARCHIV/mld/19970129/std = Betr.-Meldungen vom 29.01.97
- Dateiname
- ./ARCHIV/mld//〈datum〉/vt
- z. B:
- ./ARCHIV/mld/19970129/vt = VT-Meldungen vom 29.01.97
- Reisegeschwindigkeitsbänder im Abschnitt aufgrund lokaler Verkehrsdaten (Original)
- Streckenbezogene Dichte im Abschnitt aufgrund lokaler Verkehrsdaten (Original)
- Reisegeschwindigkeitsbänder im Abschnitt aufgrund lokaler Verkehrsdaten (Simulation)
- Streckenbezogene Dichte im Abschnitt aufgrund lokaler Verkehrsdaten (Simulation)
- Reisegeschwindigkeitsbänder im Abschnitt aufgrund von Standardverfahren (Original)
- Streckehbezogene Dichte im Abschnitt aufgrund von Standardverfahren (Original)
- Reisegeschwindigkeitsbänder im Abschnitt aufgrund von Standardverfahren (Simulation)
- Streckenbezogene Dichte im Abschnitt aufgrund von Standardverfahren (Simulation)
- Reisegeschwindigkeitsbänder im Segment aufgrund von wissenschaftlichen Verfahren (Original)
- Streckenbezogene Dichte im Segment aufgrund von wissenschaftlichen Verfahren (Original)
- Reisegeschwindigkeitsbänder im Segment aufgrund von wissenschaftlichen Verfahren (Simulation)
- Streckenbezogene Dichte im Segment aufgrund von wissenschaftlichen Verfahren (Simulation)
Stufe | Farbcode | Dichte [Fz/Km] | Geschwindigkeit [Km/h] |
Keine Daten | hellblau | --- | --- |
Stufe 1 | grün | ≤ 20 | > 120 |
Stufe 2 | gelb | ≤ 40 | > 100 |
Stufe 3 | orange | ≤ 60 | > 80 |
Stufe 4 | rot | ≤ 80 | > 40 |
Stufe 4 | magenta | > 80 | ≤ 40 |
Fehler | schwarz | --- | --- |
Stufe | Farbcode | Dichte [Fz/Km] | Geschwindigkeit [Km/h] |
Keine Daten | --- | --- | |
Stufe 1 | ≤ | > | |
Stufe 2 | ≤ | > | |
Stufe 3 | ≤ | > | |
Stufe 4 | ≤ | > | |
Stufe 4 | > | ≤ | |
Fehler | --- | --- |
Dabei werden Symbole für Verkehrsstörungen, die aufgrund von Daten aus der Vollspurerfassung resultieren, nur in den Grafiken für die Originaldaten angezeigt. Symbole für Störungen aufgrund von Simulationsdaten werden in den Grafiken für die Online-Simulation eingeblendet. Somit ist ein direkter Vergleich möglich.
Die Symbole sind wie in Figur 13 dargestellt aufgebaut:
Situationsnummer | Beschreibung |
0 | keine Verkehrsstörung erkannt |
1 | verkehrstechnischer Engpaß |
2 | baulicher Engpaß |
3 | Verdichtung |
4 | einwandernder Stau |
5 | zugestauter Abschnitt |
6 | stockender Verkehr |
- Abschnitte (Stufe 1 und 2)
- Segmente (Stufe 3)
- ortsbezogene Symbole für Verkehrsstörungen
- Anschlußstellen
Nach Auswahl dieses Menüpunkts wird eine in Figur 15 dargestellt Maske aufgeblendet, in der die aktuell eingestellten Farbcodes und Schwellwerte angezeigt werden.
Das Menü Meldungen enthält folgende Unterpunkte:
- VT-Meldungen, zur Anzeige der in Figur 16 dargestellten Dialogmaske Verkehrstechnische Meldungen
- Betriebsmeldungen, zur Anzeige der Dialogmaske Betriebsmeldungen
Claims (24)
- System zur Ermittlung von auf Straßenstrecken, insbesondere Autobahnen, bezogene Verkehrsinformationen, mit jeweils wenigstens einer Erfassungseinheit, einer Eingangsdatenkommunikationseinheit, einer Datenverarbeitungseinheit zur Erzeugung von Meldesätzen, einer Meldungsmanagementeinheit zur Aufbereitung von Meldesätzen, einer Ausgangsdatenkommunikationseinheit zur Informationsversendung an Verteiler sowie einer Visualisierungseinheit zur Informationsdarstellung.
- System nach Anspruch 1, dadurch gekennzeichnet, daß dieses ein Archiv für erfaßte und/oder verarbeitete Informationen aufweist.
- System nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß dieses wenigstens eine Anlagenüberwachungseinheit aufweist.
- System nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß dieses eine Datenflussüberwachungseinheit aufweist.
- System nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß dieses eine Datenverarbeitungsüberwachungseinheit aufweist.
- System nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß dieses eine Zeitkontrolleinheit zur Überwachung von Meldungsfolgen aufweist.
- System nach wenigstens einem der vorhergehenden Ansprüche, wobei mittels ortsfester Detektoren lokale Erfassungsquerschnitte gebildet, verkehrsbezogene Meßwerte erfaßt, mittels lokaler Rechner vorverarbeitet und auf ein vorgegebenes Datenprotokoll normiert, aggregiert und per drahtloser Übermittlung an eine übergeordnete Datenverarbeitungsanlage übertragbar sind.
- System nach Anspruch 7, dadurch gekennzeichnet, daß ortsfeste Detektoren an Anschlußstellen, Knotenpunkten und dergleichen positioniert sind.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Anordnungsdichte der ortsfesten Detektoren in Abhängigkeit von Verkehrserwartungsschätzungen bestimmt ist.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zur lokalen Vorverarbeitung der Daten deren Plausibilität anhand von Modellvergleichen überprüfbar ist.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß aus der Veränderung der Meßwerte Trendfaktoren ermittelbar sind.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß aus den ermittelten Daten taktweise Zustandscodes ermittelbar sind.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Meßwerte fahrspurenbezogen erfaßbar sind.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß übergeordnete Datenverarbeitungsanlagen zumindest für zu Gruppen zusammengefaßte benachbarte Erfassungsquerschnitte zugeordnet sind.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß als übergeordnete Datenverarbeitungsanlage eine Zentrale für alle Erfassungsquerschnitte eines Netzes oder für mehrere übergeordnete Datenverarbeitungsanlagen zugeordnet ist.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß in wenigstens einer übergeordneten Datenverarbeitungsanlage streckenbezogene Verkehrsinformationen durch Verknüpfung der übertragenen Daten benachbarter Erfassungsquerschnitte errechenbar sind.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zentrale Datenauswertungen zur Störfallerkennung durchführbar ist.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Daten zur Routensuche auswertbar sind.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Daten zur Ausgabe von Verkehrsleitungsinformationen auswertbar sind.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Daten zur Abgabe von Verkehrsentwicklungsprognosen auswertbar sind.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Daten zur Ausgabe von Reisezeitinformationen auswertbar sind.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Daten zur Ausgabe von Stauinformationen auswertbar sind.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Visualisierung in Windowtechnik erfolgt.
- System nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß dieses ein Dialogmaskensystem umfaßt.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK98118423T DK0915445T3 (da) | 1997-10-06 | 1998-09-29 | System til fremskaffelse af trafikinformationer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19744033 | 1997-10-06 | ||
DE19744033 | 1997-10-06 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0915445A2 true EP0915445A2 (de) | 1999-05-12 |
EP0915445A3 EP0915445A3 (de) | 2000-08-02 |
EP0915445B1 EP0915445B1 (de) | 2005-06-29 |
Family
ID=7844692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98118423A Expired - Lifetime EP0915445B1 (de) | 1997-10-06 | 1998-09-29 | System zur Ermittlung von Verkehrsinformationen |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0915445B1 (de) |
AT (1) | ATE298914T1 (de) |
DE (1) | DE59812892D1 (de) |
DK (1) | DK0915445T3 (de) |
ES (1) | ES2244026T3 (de) |
PT (1) | PT915445E (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1154389A1 (de) * | 2000-05-10 | 2001-11-14 | DaimlerChrysler AG | Verfahren zur Verkehrslagebestimmung für ein Verkehrsnetz |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4311876A (en) * | 1977-04-06 | 1982-01-19 | Nissan Motor Company, Ltd. | Route guidance system for roadway vehicles |
US5131020A (en) * | 1989-12-29 | 1992-07-14 | Smartroutes Systems Limited Partnership | Method of and system for providing continually updated traffic or other information to telephonically and other communications-linked customers |
WO1994011839A1 (en) * | 1992-11-19 | 1994-05-26 | Kjell Olsson | Prediction method of traffic parameters |
US5317311A (en) * | 1988-11-14 | 1994-05-31 | Martell David K | Traffic congestion monitoring system |
US5539645A (en) * | 1993-11-19 | 1996-07-23 | Philips Electronics North America Corporation | Traffic monitoring system with reduced communications requirements |
-
1998
- 1998-09-29 DK DK98118423T patent/DK0915445T3/da active
- 1998-09-29 AT AT98118423T patent/ATE298914T1/de active
- 1998-09-29 EP EP98118423A patent/EP0915445B1/de not_active Expired - Lifetime
- 1998-09-29 DE DE59812892T patent/DE59812892D1/de not_active Expired - Lifetime
- 1998-09-29 ES ES98118423T patent/ES2244026T3/es not_active Expired - Lifetime
- 1998-09-29 PT PT98118423T patent/PT915445E/pt unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4311876A (en) * | 1977-04-06 | 1982-01-19 | Nissan Motor Company, Ltd. | Route guidance system for roadway vehicles |
US5317311A (en) * | 1988-11-14 | 1994-05-31 | Martell David K | Traffic congestion monitoring system |
US5131020A (en) * | 1989-12-29 | 1992-07-14 | Smartroutes Systems Limited Partnership | Method of and system for providing continually updated traffic or other information to telephonically and other communications-linked customers |
WO1994011839A1 (en) * | 1992-11-19 | 1994-05-26 | Kjell Olsson | Prediction method of traffic parameters |
US5539645A (en) * | 1993-11-19 | 1996-07-23 | Philips Electronics North America Corporation | Traffic monitoring system with reduced communications requirements |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1154389A1 (de) * | 2000-05-10 | 2001-11-14 | DaimlerChrysler AG | Verfahren zur Verkehrslagebestimmung für ein Verkehrsnetz |
Also Published As
Publication number | Publication date |
---|---|
ES2244026T3 (es) | 2005-12-01 |
EP0915445A3 (de) | 2000-08-02 |
DE59812892D1 (de) | 2005-08-04 |
EP0915445B1 (de) | 2005-06-29 |
ATE298914T1 (de) | 2005-07-15 |
PT915445E (pt) | 2005-11-30 |
DK0915445T3 (da) | 2005-10-17 |
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