EP0077100A1 - Dispositif pour la détection automatique de passagers entrant et sortant de véhicules de transport publique; et son application à un dispositif pour le comptage automatique de passagers et à un dispositif pour l'ouverture et la fermeture automatique de portes de véhicule - Google Patents

Dispositif pour la détection automatique de passagers entrant et sortant de véhicules de transport publique; et son application à un dispositif pour le comptage automatique de passagers et à un dispositif pour l'ouverture et la fermeture automatique de portes de véhicule Download PDF

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Publication number
EP0077100A1
EP0077100A1 EP82201245A EP82201245A EP0077100A1 EP 0077100 A1 EP0077100 A1 EP 0077100A1 EP 82201245 A EP82201245 A EP 82201245A EP 82201245 A EP82201245 A EP 82201245A EP 0077100 A1 EP0077100 A1 EP 0077100A1
Authority
EP
European Patent Office
Prior art keywords
public transport
top plate
automatic
bottom plate
passengers
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Withdrawn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
EP82201245A
Other languages
German (de)
English (en)
Inventor
Jannis Bastiaan Leenhouts
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.)
Etrometa Bv
Original Assignee
Etrometa Bv
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 Etrometa Bv filed Critical Etrometa Bv
Publication of EP0077100A1 publication Critical patent/EP0077100A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/08—Design features of general application for actuating the drive
    • G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M7/00—Counting of objects carried by a conveyor
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/10—Mechanical actuation by pressure on floors, floor coverings, stair treads, counters, or tills

Definitions

  • the invention relates to a device for the automatic detection of passengers getting in and out of public transport vehicles comprising electric pulses generating means, said means being automatically operated by said passengers.
  • Object of the invention is a device for the automatic detection of passengers getting in and out of public transport vehicles which does not comprise the aforementioned drawbacks and which, when combined with an automatic counting system, provide a counting result which match that of countings carried out by hand.
  • a device of the aforementioned type which is characterised by means, which may be brought to approach from its starting position under the influence of the passengers' weight against a force, sustaining the starting.position, to an oscillator circuit while damping the oscillations.
  • the invention is based on the observation that it is not the movement of the passenger's trunk which takes place consistently but rather their step movements.
  • an automatic passenger counting method for which use is made of so-called sensitive treadles, which are applied on two subsequent footboards in a doorway of a tram or a bus may provide counting accuracies which indeed at least match that of countings carried out by hand.
  • the device according to the invention may be constructed as a composite element to be exchangeably mounted on a footboard in the doorway of a public transport vehicle, for example a tram or a bus, and comprising a bottom or an assembly plate as well as a top plate, being adjusted in about parallel relationship therewith and being movably and cooperatively connected with the bottom plate, which bottom plate is provided with one or more proximity switches which may be electrically parallel connected; electric current conducting leads for the operation of the proximity switches and.an output lead, conducting the signals generated under the influence of the passengers getting in and out of the vehicles; the top plate as the oscillations damping element being made of a ferritic material.
  • the invention will be illustrated by means of the drawing which represents a preferred embodiment of a device constructed as a so-called sensitive treadle which is capable of being additionally provided in step cases of trams and buses without appreciable changes of the coach work, the independent construction of which making it easily exchangeable.
  • a device constructed as a so-called sensitive treadle which is capable of being additionally provided in step cases of trams and buses without appreciable changes of the coach work, the independent construction of which making it easily exchangeable.
  • the sensitive treadle comprises a bottom plate on which are mounted:
  • the bottom plate 1 forms the component construction part of the sensitive treadle.
  • the inductive proximity switches 2 have been fitted on it in such positions that the sensitivity is distributed all over the surface as evenly as possible.
  • springs 3 are mounted, constructed as double leaf springs, which, at rest, hold the top plate at top position.
  • the bottom plate also accommodates evenly distributed stop strips 5, on which the top plate will rest when a passenger stands on it and consequently overcomes the spring tension.
  • the top plate is kept in position in relation to the bottom plate 1 by means of stop - and - guide bolts 7, being screwed in corresponding welded nuts in the bottom plate.
  • the top plate 6 of the sensitive treadle contains on all four sides bent-over edges 11,12 (Fig. 3, Fig. 4). The height of these edges is limited on both side edges and the rear edge because of the required small height of the sensitive treadle and furthermore to limit the freezing of moist dirt on these bent-over edges.
  • the front edge 11 of the top plate is higher for the following reasons.
  • the top plate is mainly stepped on at the front edge so that it is there that the top plate must have its utmost rigidity. Furthermore this higher edge at the front enables holes 13,14 to be provided, through which the stop lugs 8,9 mounted on the bottom plate may pass.
  • the sensitive treadle is provided on a footboard 15 (Fig. 8) in a doorway of a tram or a bus in such a way that the bent-over front edge of the top plate hangs freely over the front edge of the footboard.
  • the bottom plate is made of austenitic stainless steel no. 316 which is a corrosion resistant type material.
  • the top plate 6 is made of a ferritic stainless steel no. 430.
  • the ferritic properties are necessary to provide the effective damping of the proximity switches.
  • the stop strips fitted on the bottom plate are made of a synthetic plastic material, because this material has good resistance to chemicals, is quiet and is wear resistant as well as that it offers a slight risk of freezing on.
  • Part of the stop strips on the bottom plate are provided along its periphery in such a way that these stop strips project by about 1 mm from the periphery of the bottom plate. The object of this is that in case the guide holes in the top plate through which the guide bolts have been passed and screwed into the corresponding nuts of the bottom plate, should wear out, the guiding of the top plate is taken over by the stop strips provided along the periphery of the bottom plate.
  • the springs 3 are of the symmetric leaf spring type, their points of attachment surfaces of the springs on the bottom plate remaining minimum.
  • the switch elements are inductive proximity switches, their height being 5.5 mm.
  • the electric circuit of the proximity switches permits the external parallel connection of several switches.
  • the protection from moisture of the sensitive treadle has been realised by encapsulating the inductive proximity switch in a moulding resin material.
  • the treadle can keep an open construction which enables treadles to be designed without using plastic sealing materials.
  • the absence of plastic sealing materials also facilitates the compliance with the requirement of the even sensitivity all over the top plate in the event of extreme temperatures.
  • the operation of the sensitive treadle is based on the operation of the inductive proximity switch.
  • This inductive proximity switch contains an L/C oscillator. Part of the oscillator circuit is a coil. This coil is placed in a potcore, being open at one end. The potcore is made of ferroxcube and its open end is directed upwardly.
  • the top plate of the sensitive treadle made of ferritic material, is applied over the open end of-the potcore.When at rest, the top plate is at such a distance from the potcore that the proximity switch is in the undamped state. When a passenger stands on the top plate of the sensitive treadle he pushes it downward. The top plate consequently approaches the open end up to 0.5 mm.
  • the state of the proximity switch then consequently changes to the damped situation.
  • the damped or undamped condition of the promimity switch is manifested by the voltage level of the output lead of the proximity switch.
  • the electric output circuit of the proximity switch is such that it can be simply connected parallel with the outputs of other proximity switches. Thanks to that it is possible to provide several proximity switches in a sensitive treadle, owing to which the optimum even sensitivity of the sensitive treadle can be realized.
  • the joint output of the parallel connected proximity switches is manifested as one switch.
  • the sensitive treadle can be used in doorways of trams and buses for the detection of passengers getting in and out while this detection can be used as a component in complete automatic passenger counting systems as well as for automatic door closing systems.
  • the top plate and the bottom plate may be hinged together along their rear edges. Under the influence of spring action the top plate is again moved upwards with the top and bottom plates being spaced an increasing distance from each other as viewed from the rear edge to the front edge.
  • one single proximity switch, or if necessary two proximity switches will suffice.
  • a single switch will be mounted in the middle of the bottom plate adjacent to the front edge thereof.
  • the bottom plate is omitted.
  • a spring leaf which is bent-over along its transverse axis to an aperture angle of, for example, 10-20 degrees between the leaf halves.
  • the upper leaf half is fixedly connected to the top plate so that the aperture angle of the folded spring leaf is directed to the front edge of the top plate.
  • a proximity switch is secured to the bottom leaf-half adjacent the end thereof.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
EP82201245A 1981-10-06 1982-10-06 Dispositif pour la détection automatique de passagers entrant et sortant de véhicules de transport publique; et son application à un dispositif pour le comptage automatique de passagers et à un dispositif pour l'ouverture et la fermeture automatique de portes de véhicule Withdrawn EP0077100A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8104549A NL8104549A (nl) 1981-10-06 1981-10-06 Inrichting voor automatische detectie van de in- en uitstappende passagiers van openbare vervoermiddelen alsmede onder toepassing van de inrichting verkregen inrichting voor automatische passagierstelling en inrichting voor het automatisch openen en sluiten van deuren.
NL8104549 1981-10-06

Publications (1)

Publication Number Publication Date
EP0077100A1 true EP0077100A1 (fr) 1983-04-20

Family

ID=19838175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82201245A Withdrawn EP0077100A1 (fr) 1981-10-06 1982-10-06 Dispositif pour la détection automatique de passagers entrant et sortant de véhicules de transport publique; et son application à un dispositif pour le comptage automatique de passagers et à un dispositif pour l'ouverture et la fermeture automatique de portes de véhicule

Country Status (2)

Country Link
EP (1) EP0077100A1 (fr)
NL (1) NL8104549A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0831443A3 (fr) * 1996-09-24 1999-07-21 Bircher AG Capteur pour un circuit électrique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524438A (en) * 1923-07-17 1925-01-27 Isgro Joseph Automatic car-step register
GB769562A (en) * 1954-01-02 1957-03-13 Frank Harrison Miller Improvements in or relating to devices for indicating the number of persons who have travelled over a particular path
GB1450384A (en) * 1972-08-15 1976-09-22 Lusty E D Weight operated sensing means
US4009389A (en) * 1974-09-26 1977-02-22 Aktiebolaget Almex Apparatus for the automatic counting of passengers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524438A (en) * 1923-07-17 1925-01-27 Isgro Joseph Automatic car-step register
GB769562A (en) * 1954-01-02 1957-03-13 Frank Harrison Miller Improvements in or relating to devices for indicating the number of persons who have travelled over a particular path
GB1450384A (en) * 1972-08-15 1976-09-22 Lusty E D Weight operated sensing means
US4009389A (en) * 1974-09-26 1977-02-22 Aktiebolaget Almex Apparatus for the automatic counting of passengers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0831443A3 (fr) * 1996-09-24 1999-07-21 Bircher AG Capteur pour un circuit électrique

Also Published As

Publication number Publication date
NL8104549A (nl) 1983-05-02

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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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Effective date: 19831017

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Effective date: 19840705

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Inventor name: LEENHOUTS, JANNIS BASTIAAN