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DE3016480A1 - Determining location of vehicle along known route - using variable integration factor selected by place code and pulse generator in vehicle - Google Patents

Determining location of vehicle along known route - using variable integration factor selected by place code and pulse generator in vehicle

Info

Publication number
DE3016480A1
DE3016480A1 DE19803016480 DE3016480A DE3016480A1 DE 3016480 A1 DE3016480 A1 DE 3016480A1 DE 19803016480 DE19803016480 DE 19803016480 DE 3016480 A DE3016480 A DE 3016480A DE 3016480 A1 DE3016480 A1 DE 3016480A1
Authority
DE
Germany
Prior art keywords
vehicle
integration factor
location
pulse generator
path integration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE19803016480
Other languages
German (de)
Other versions
DE3016480C2 (en
Inventor
Christian Ing.(grad.) 7913 Senden Nordhofen
Rudolf Ing.(grad.) 7914 Pfaffenhofen Ribhegge
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE19803016480 priority Critical patent/DE3016480A1/en
Publication of DE3016480A1 publication Critical patent/DE3016480A1/en
Application granted granted Critical
Publication of DE3016480C2 publication Critical patent/DE3016480C2/de
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/20Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/123Traffic 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
    • G08G1/127Traffic 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 to a central station ; Indicators in a central station

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Traffic Control Systems (AREA)

Abstract

This method of determining the exact location, e.g. of a bus from a central depot by means of stopping place codes, distance pulses and a local computer, uses a variable integration factor depending on the distances between successive stopping places. Summing of distance increments is required due to the limited computer word length. A variable integration factor maintains precision regardless of distances between stops. Three bits are allocated to three different integration factors of an information block. The factors are selected by a place code.

Description

Anordnung zum Erfassen des Standortes eines FahrzeugsArrangement for detecting the location of a vehicle

Die Erfindung betrifft eine Anordnung nach dem Oberbegriff des Anspruchs 1. Eine solche Anordnung ist z. B.- aus der DE-OS 27 54 024 bekannt.The invention relates to an arrangement according to the preamble of the claim 1. Such an arrangement is z. B.- from DE-OS 27 54 024 known.

Zur Bestimmung des Standortes eines Fahrzeugs, das eine vorbestimmte Route fährt, wird außer durch Ortscodeeinrichtungen,- die dem Fahrzeug punktweise den momentanen Standort übermitteln, die zurückgelegte Strecke mittels einer Wegmeßeinrichtung-erfaßt. Bei der Wegmeßeinrichtung handelt es sich meist um einen Wegimpulsgeber, der ca.To determine the location of a vehicle that has a predetermined Route is driven, except by location code devices, - which the vehicle point by point transmit the current location, the distance covered by means of a distance measuring device-recorded. The position measuring device is usually a position pulse generator that measures approx.

alle 1 m Fahrstrecke einen Impuls abgibt. In rechnergesteuerten Botriebsleitsystemen werdeS-die Fahrzeuge des Systems zyklisch von einer Zentrale áufgerufen, um den momentanen aktuellen Standort abzufragen. Der Standort wird vom Fahrzeug durch ein Funktelegramm übermittelt, indem der zuletzt empfangene Ortscode und die seither gefahrene Strecke mitgeteilt,wird. Für die Strecke stehen dabei im Funktelegramm meist 8 Bit, also 256 Schritte, zur Verfügung. Daraus folgt, daß die vom Fahrzeug aufsummierten Ws g impulse zu Wegschritten aufintegriert werden müssen.emits an impulse every 1 m of travel. In computer-controlled transport control systems The vehicles in the system are called up cyclically from a control center in order to query current location. The location is determined by the vehicle through a Radio telegram transmitted by the last received location code and the one since the distance traveled is communicated. The radio telegram stands for the route mostly 8 bits, i.e. 256 steps, are available. It follows that from the vehicle summed up Ws g impulses have to be integrated into steps.

Es ist bekannt, einer Fahrzeuganlä;ge dazu einen festen Wegintegrationsfak:-or vorzugeben. Dieser stellt einen Kompromiß dar zwischen dem Aufwand an Ortscodeeinrichtungen, die den Wegimpuisgeber zurücknetzen, und der geforderten Auflösungsgenauigkeit bei der Standortbestimmung.It is known that a vehicle system has a fixed path integration factor for this purpose: -or to pretend. This represents a compromise between the cost of location code facilities, which network the Wegimpuisgeber back, and the required resolution accuracy the determination of the position.

Aufgabe der Erfindung ist es, eine -Anordnung anzugeben, bei der der Wegintegrationsfaktor während des Betriebs geändert werden kann, um die Auflösegenauigkeit der Standortbestimmung unterschiedlichen Anforderungen ansupassen.The object of the invention is to provide an arrangement in which the Path integration factor can be changed during operation to improve the resolution accuracy adapt to different requirements of the location determination.

Die Erfindungtst im Patentanspruch 1 beschrieben. Der Unteranspruch -beinhaltet eine vorteilhafte Weiterbildung der Erfindung.The invention is described in claim 1. The subclaim -includes an advantageous development of the invention.

Der bezondere Vorteil der Erfindung liegt darin, daß in einem Stadtkern mit, vielen dicht aufeinanderfolgenden Haltestellen, wo dte Standortbestimmung sehr genau sein muß-, ein kleiner Wegintegrationsfaktor gewählt werden kann, während bei Überladfahrten ein großer Faktor gewählt werden kann, damit trotz weiter Strecken die Anzahl der Ortscodeeinrichtun;gen gering bleiben kann. Busnetze- mit beiden Arten von Strecken in einer Linie kommen häufig vor.The particular advantage of the invention is that in a city center with, many stops in close succession, where the location is very much must be accurate, a small path integration factor can be chosen while A large factor can be selected for overload trips, so that despite long distances the number of local code facilities can remain small. Bus networks - with both Types of stretches in a line are common.

Die Erfindung wird im folgenden an einem Ausführungsbeispiel naher beschrieben.The invention is closer to an embodiment in the following described.

Auf der Route eines Fahrzeugs, z. B. eines Nahverkehrsbetriebes, seien in unterschiedlichen Abständen Ortscodeeinrichtungen angeordnet In FIG. 1 ist dargestellt, welchen Aufbau das Telegramm einer solchen Einrichtung haben kann.On the route of a vehicle, e.g. B. a local transport company Location code devices arranged at different distances In FIG. 1 is shown what structure the telegram of such a facility can have.

Auf einen Synchronisationsteil folgt ein erster Infoblock, in welchem u. a. Angaben über den technischen Zustand der Ortscodeeinrichtung enthalten sein können, sodann ein zweiter Infoblock, welcher die Ortscodeadresse angibt, also den momentanen Standort, und schließlich ein Redundanzanteil.A synchronization part is followed by a first information block in which i.a. Information about the technical condition of the location code device must be included can, then a second info block, which specifies the location code address, so the current location, and finally a redundancy component.

Die Tabelle 1 schlüsselt noch einmal auf, wie der erste Infoblock aufgebaut sein kann. Es sind zwei Bits, hier bS und 5 b6 vorgesehen, um dem Fahrzeug den zu wählende Wegintegrationsfaktor mitzuteilen. Gemäß den möglichen Bitkombinationen könnten vier Faktoren verschlüsselt werden. Im Beispiel sind nur drei Kombinationen belegt, nämlich die Zustände b), c) oder d) mit den Faktoren 16, 32 bzw. 64. Die vierte Bitkombination ist im Beispiel mit einer anderen Information belegt, dem Eichstreckenanfang. Diese Information löst in der Fahrzeuganlage einen Eichvorgang aus, auf den hier nicht näher eingegangen sei. Die Vorgabe eines Wegintegrationsfaktors fällt an dieser Ortscodeeinrichtung aus, das Fahrzeug wählt daher den seit der vorherigen Einrichtung gespeicherten Faktor.Table 1 breaks down again, like the first info block can be constructed. There are two bits, here bS and 5 b6, for the vehicle to communicate the path integration factor to be selected. According to the possible bit combinations four factors could be encoded. In the example there are only three combinations occupied, namely the states b), c) or d) with the factors 16, 32 or 64. The In the example, the fourth bit combination is occupied by a different piece of information, the Calibration route start. This information triggers a calibration process in the vehicle system which will not be discussed in detail here. The specification of a path integration factor fails at this location code device, the vehicle therefore selects the one since the previous one Facility stored factor.

Beim Ersteinschalten einer Fahrzeuganlage oder nach Batteriespannungs-Zusammenbruch hat der Fahrzeugrechner noch keinen Wegintegrationsfaktor gespeiche'rt. Er wählt daher selbständig einen bestimmten vorgegebenen Faktor, z. B. 32.When switching on a vehicle system for the first time or after a battery voltage breakdown the vehicle computer has not yet saved a path integration factor. He chooses therefore independently a certain predetermined factor, e.g. B. 32.

Dieser Faktor wird solange benutzt, bis eine Ortscodeeinrichtung einen neuen mitteilt.This factor is used until a location code device announces new.

Bei der Übertragung des Standortes an die Zentrale wird vom Fahrzeug als zurückgelegte Weglänge das geradzahlige abgerundete Ergebnis der Division ZWegimpulse = E Wegschritte Wegintegrationsfaktor mitgeteilt.When transferring the location to the headquarters, the vehicle the even-numbered rounded result of the division ZWegimpulse as the distance covered = E path steps path integration factor communicated.

Claims (1)

Patentansprüche 9 Anordnung sum Erfassen des Standortes eines Fahrzeuge, das eine vorbestimmte Route fahrt, mit Ortscodeeinrichtungen, die dem Fahrzeug punktweise den momentanen Standort übermitteln, mit einem Wegimpulsgeber und einem Rechner im Fahrzeug, sowie mit einer Zentrale, welche vom Fahrzeug Standortinformationen abruft, dadurch gekennzeichnet, daß die Telegramme der Ortscodeeinrichtungen eine Information über einen Wegintegrationsfaktor enthalten, der verschiedens Werte haben kann, daß das Fahrzeug den Wegintegrationsfaktor im Rechner speichert bis ein neuer mitgeteilt wird, daß der Rechner die aufsummierten Wegimpulse durch den Wegintegrationsfaktor dividiert und daß das Fahrzeug das Ergebnis auf Abruf als zurückgelegte Weglänge der Zentrale mitteilt 2 Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß das Fahrzeug einen vorbestimmten Wegintegrationifaktor annimmt, sofern es noch keinen solchen von einer Ortscodeeinrlehturltg empfangen hat.Claims 9 arrangement for recording the location of a vehicle, that drives a predetermined route, with location code devices, the vehicle point by point transmit the current location with a distance pulse generator and a computer in the vehicle, as well as with a control center, which receives location information from the vehicle retrieves, characterized in that the telegrams of the location code devices a Contain information about a path integration factor which have different values can that the vehicle stores the path integration factor in the computer until a new one it is communicated that the computer calculates the summed up path impulses by the path integration factor divided and that the vehicle the result on request as the distance traveled the center notifies 2 arrangement according to claim 1, characterized in that the Vehicle assumes a predetermined path integration factor if it has not already been received such from a Ortscodeeinrlehturltg.
DE19803016480 1980-04-29 1980-04-29 Determining location of vehicle along known route - using variable integration factor selected by place code and pulse generator in vehicle Granted DE3016480A1 (en)

Priority Applications (1)

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DE19803016480 DE3016480A1 (en) 1980-04-29 1980-04-29 Determining location of vehicle along known route - using variable integration factor selected by place code and pulse generator in vehicle

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DE19803016480 DE3016480A1 (en) 1980-04-29 1980-04-29 Determining location of vehicle along known route - using variable integration factor selected by place code and pulse generator in vehicle

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DE3016480A1 true DE3016480A1 (en) 1981-11-05
DE3016480C2 DE3016480C2 (en) 1988-08-04

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK85688D0 (en) * 1988-02-19 1988-02-19 Willy Palle Pedersen MARKING SYSTEM
DE4310098C2 (en) * 1993-03-23 1998-01-15 Blohberger Ralf Method and device for increasing security against theft of motor vehicles serving as rental cars
DE10127619A1 (en) 2001-06-07 2002-12-12 Daimler Chrysler Ag Dynamic setting process for vehicle components involves reporting vehicle state values characterizing driver behavior

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1449018B1 (en) * 1963-07-01 1970-11-12 Philips Patentverwaltung Arrangement for monitoring the traffic situation of vehicles, e.g. Regular buses
DE2539241A1 (en) * 1975-09-03 1977-03-17 Siemens Ag Automated centrallized radio monitoring and control system - is for fleet of vehicles such as omnibuses and has decoder in each vehicle to process messages received via modem
DE2754024B2 (en) * 1977-12-05 1980-02-14 Siemens Ag, 1000 Berlin Und 8000 Muenchen Device for controlling a traffic light system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1449018B1 (en) * 1963-07-01 1970-11-12 Philips Patentverwaltung Arrangement for monitoring the traffic situation of vehicles, e.g. Regular buses
DE2539241A1 (en) * 1975-09-03 1977-03-17 Siemens Ag Automated centrallized radio monitoring and control system - is for fleet of vehicles such as omnibuses and has decoder in each vehicle to process messages received via modem
DE2754024B2 (en) * 1977-12-05 1980-02-14 Siemens Ag, 1000 Berlin Und 8000 Muenchen Device for controlling a traffic light system

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Publication number Publication date
DE3016480C2 (en) 1988-08-04

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