EP0280870A1 - Liniendetektor-Anordnung - Google Patents

Liniendetektor-Anordnung Download PDF

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Publication number
EP0280870A1
EP0280870A1 EP88101095A EP88101095A EP0280870A1 EP 0280870 A1 EP0280870 A1 EP 0280870A1 EP 88101095 A EP88101095 A EP 88101095A EP 88101095 A EP88101095 A EP 88101095A EP 0280870 A1 EP0280870 A1 EP 0280870A1
Authority
EP
European Patent Office
Prior art keywords
ribbon cable
line detector
line
cable
line detectors
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.)
Withdrawn
Application number
EP88101095A
Other languages
German (de)
English (en)
French (fr)
Inventor
Walter Dipl.-Ing. Wimmer
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0280870A1 publication Critical patent/EP0280870A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
    • 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

Definitions

  • the invention relates to a line detector arrangement with magnetic probes for determining occupancy conditions in road traffic.
  • Traffic variables are required to regulate road traffic, for example traffic density, vehicle speed or the occupancy of a road section with vehicles.
  • This occupancy is to be recorded continuously and evaluated in a suitable form, whereby the recorded or evaluated data e.g. are transmitted as a bit pattern to a road traffic control device (intersection device).
  • a road traffic control device intersection device
  • the presence of a vehicle at a certain point on a road is determined using induction loops or magnetic probes.
  • induction loops or magnetic probes To determine the occupancy of a longer section of the route, a large number of such vehicle detectors arranged in a line are required, which are to be installed in the road at certain intervals, for example five meters.
  • the use of magnetic probes that are as small as possible enables less installation effort compared to inductive loop detectors (patent application VPA 86 P 1734 DE).
  • each magnetic sensor must be laid with its own, at least two-wire, line to an evaluation device and connect it to the road control unit.
  • the object of the invention is to reduce the installation effort when laying a large number of magnetic sensors in a line and thereby improve the connection technology. This object is achieved with a line detector arrangement as characterized by the features of claim 1.
  • each detector has an associated evaluation circuit in addition to the magnetic probe. Both together are arranged on a relatively small circuit board with an edge length of 20 mm, for example. Furthermore, an insulation displacement connector with a plurality of contact elements is arranged on the circuit board on two opposite sides. With these insulation displacement connectors, a large number of line detectors are connected at a certain distance, for example 5 m, from one another on a multi-core ribbon cable and are electrically connected to it, the line detectors with their printed circuit boards, the circuit arrangement and the cable connection being sealed in a watertight manner. Such a line detector arrangement can be prefabricated and rolled up in the factory. To install the ribbon cable with the line detectors, the cable is inserted along the street in a slot, for example 5 mm wide, and then potted.
  • the number of cores of the ribbon cable corresponds to the number of contact elements of the insulation displacement connector, the circuit arrangement of a respective line detector for a common power supply in each case on the same contact elements, for example on two contact elements, but the output of the evaluation circuit each on a different contact element is connected so that without the pair of power supply wires the number of line detectors corresponds to the number of cable wires.
  • the ribbon cable is led to the control device, either to the nearest mast of the signal transmitter, from which the further data transmission to the control device takes place, or directly to the road traffic control device.
  • the line detectors are only connected to a two-wire ribbon cable, each detector additionally having a time-division multiplex transmission device.
  • Each detector additionally having a time-division multiplex transmission device.
  • One of those trained line detector arrangement has the advantage that the multiplex data transmission is possible directly to a decentralized control unit.
  • Such data transmission for a traffic signal system has already been proposed in the German patent application VPA 86 P 1762 DE.
  • the ribbon cable is pre-shaped in a zigzag shape. This has the advantage that expansion of the asphalt can be compensated better. This also simplifies installation because this deformation keeps the cable easier until it is cast in the slot.
  • the encapsulated line detector is expediently not significantly wider than the width of the ribbon cable.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Traffic Control Systems (AREA)
EP88101095A 1987-01-29 1988-01-26 Liniendetektor-Anordnung Withdrawn EP0280870A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8701407U DE8701407U1 (de) 1987-01-29 1987-01-29 Vorrichtung zur Ermittlung von Belegungszuständen im Straßenverkehr
DE8701407U 1987-01-29

Publications (1)

Publication Number Publication Date
EP0280870A1 true EP0280870A1 (de) 1988-09-07

Family

ID=6804138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101095A Withdrawn EP0280870A1 (de) 1987-01-29 1988-01-26 Liniendetektor-Anordnung

Country Status (2)

Country Link
EP (1) EP0280870A1 (sl)
DE (1) DE8701407U1 (sl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008003340A1 (de) * 2008-01-07 2009-07-09 Robert Bosch Gmbh Sensorvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714626A (en) * 1971-03-18 1973-01-30 Canoga Controls Corp Vehicle detection system
US3825889A (en) * 1971-03-18 1974-07-23 Canoga Controls Corp Vehicle detection system
US3863206A (en) * 1974-03-12 1975-01-28 Lee C Rabie Digital Vehicle Detector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714626A (en) * 1971-03-18 1973-01-30 Canoga Controls Corp Vehicle detection system
US3825889A (en) * 1971-03-18 1974-07-23 Canoga Controls Corp Vehicle detection system
US3863206A (en) * 1974-03-12 1975-01-28 Lee C Rabie Digital Vehicle Detector

Also Published As

Publication number Publication date
DE8701407U1 (de) 1988-05-26

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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