EP0867018B1 - Vorrichtung zum erfassen der gegenwart und der passierrichtung von beweglichen gegenständen und personen mit der absicht, diese zu zählen - Google Patents

Vorrichtung zum erfassen der gegenwart und der passierrichtung von beweglichen gegenständen und personen mit der absicht, diese zu zählen Download PDF

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Publication number
EP0867018B1
EP0867018B1 EP95942739A EP95942739A EP0867018B1 EP 0867018 B1 EP0867018 B1 EP 0867018B1 EP 95942739 A EP95942739 A EP 95942739A EP 95942739 A EP95942739 A EP 95942739A EP 0867018 B1 EP0867018 B1 EP 0867018B1
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EP
European Patent Office
Prior art keywords
reception
optical
elements
distance
mobiles
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.)
Expired - Lifetime
Application number
EP95942739A
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English (en)
French (fr)
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EP0867018A1 (de
Inventor
Michel Brime S.A. Z.A. Courtaboeuf LEBLANC
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BRIME TECHNOLOGIES
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BRIME TECHNOLOGIES
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M11/00—Counting of objects distributed at random, e.g. on a surface
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06M1/101—Design features of general application for actuating the drive by electric or magnetic means by electro-optical means
    • 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

Definitions

  • the present invention relates to a device for detecting the presence and determine the direction of passage of mobiles for counting.
  • the term "mobile” applies as much to an object as to a living being.
  • Detection and determination of the direction of passage of mobiles is usually done at using a mechanical infrastructure such as turnstiles or gates, or optical systems with cutting of beams.
  • the turnstiles generally have three branches. One person crossing the turnstile turns it a third of a turn. This rotation constitutes the detection, and an external system can count the number of people who passed.
  • This device requires a large and expensive ground infrastructure. It causes a slowdown the flow of pedestrians having to pass the turnstile, by a bottleneck effect, and can only work in one direction of passage.
  • Another known device uses an infrared barrier, consisting of an emitting part and a receiving part placed opposite each other and thus forming a immaterial line. A pedestrian crossing this line is detected by the non reception of the beam light coming from the transmitter.
  • Infrared barriers need to be placed at a distance from the ground compatible with the size of the mobiles to be detected. Detecting people therefore requires place the barrier about one meter high, which requires supporting infrastructure. This arrangement of the sensor at one meter from the ground does not protect it from acts of vandalism.
  • FR-2 431 738 describes a detection device in which the reception elements must be inclined towards the detection zones, which requires adjustments during installation specific delicate, long and expensive, and is expensive to manufacture.
  • the invention aims to overcome these drawbacks and relates to a device according to the claim 1.
  • the device according to the invention is fixed to the vertical of the mobiles to be detected (ceiling by example), which does not require any infrastructure on the ground and makes it more safe from possible acts of vandalism.
  • it is in the form of a monoblock, thus not requiring two separate elements, unlike the infrared barrier. This provision does not generate slowdown in the flow of mobile flow.
  • the device includes a housing comprising firstly two transmitters (1 and 4) each having the function of emitting a beam towards a mobile by means of optical means, secondly a reception system consisting of two elements (2 and 3) capturing the beam reflected by the mobile passing through the detection zone via reception optics and, thirdly, electronic control elements transmitting (1 and 4) and processing signals received by the receiving elements (2 and 3).
  • the first and second transmitters (1 and 4), as well as the reception elements, are diodes infrared.
  • Electronic control of each transmission and signal processing element received by each receiving element comprises a clock (17) generating a pulse driving each emission element, an amplifier (18) amplifying the light signals generated by each receiving element, and a biomarker sampler (19) synchronizes with said clock to block the amplified signals and compare them with a voltage of reference by means of a comparator (20).
  • the device integrates two synchronized infrared transmitters and receivers allowing generate in the direction of passage of the mobiles two detection zones in space.
  • the existence of these two virtual detection zones makes it possible to determine the direction of passage of the mobiles by direct reflection.
  • the transmitting elements continuously emit light pulses. Resting, when no mobile is present, the receivers receive no signal. When a mobile passes through the sensor detection zone, this zone being between a minimum distance and at a maximum distance, it meets a first beam. This beam is reflected on the mobile and is detected by the first receiver. Continuing its movement, the mobile then cuts the second beam. The second beam is reflected on the mobile and is detected by the second receiver. The chronology of the light beams received makes it possible to determine the direction of passage of the mobile.
  • the device comprises two transmitters of the infrared diode type (1 and 4).
  • the light emitted by these infrared emitters is focused using an optical device of emission (5 and 7).
  • a mobile cutting the beam emitted by the first infrared transmitter (1) reflects this beam.
  • the reflected beam (10) passes through the reception optics (6) to reach the first receiving element (3).
  • a signal is then received by the first receiving element (3).
  • the mobile continuing its movement cuts the beam emitted by the second transmitter infrared (4), and reflects this beam.
  • the reflected beam (11) passes through the reception optics (6) to reach the second receiving element (2).
  • a signal is then received by the second element reception (2).
  • the signals received on the reception elements (2 and 3) make it possible to know the presence and the direction of passage of the mobile. If the first receiving element (3) receives a signal before the secondarily receiving (2), the mobile moves in a direction from the first element transmission (1) to the second transmission element (4). If the second receiving element (2) receives a signal before the first receiving element (3), the mobile moves in a direction from second transmission element (4) to the first transmission element (1).
  • the device according to the invention allows the detection of mobiles cutting the beam emitted by the first transmitter (1) over an area between a minimum distance (12) and a maximum distance (14). It allows the detection of mobiles cutting the beam emitted by the second infrared emitter (4) over an area between a minimum distance (13) and a maximum distance (15).
  • the maximum (14) and minimum (12) distances are determined by the focal length (16) of the reception optics (6) , the size of the sensitive surface of the first reception element (3), the distance (9) between the first reception element (3) and the axis of the reception optics (6), the distance between the transmission optics (5) and the reception optics (6).
  • the maximum (15) and minimum (13) distances are determined by the focal length (16) of the reception optics (6), the size of the sensitive surface of the first reception element (2), the distance (8) between the second reception element (2) and the axis of the reception optics (6), the distance between the transmission optics (7) and the reception optics (6).
  • the transmission elements (1 and 4) are driven by pulses supplied by a clock (17).
  • the pulsed light signals received by the receiving elements (2 and 3) are amplified by means of an amplifier (18).
  • the received signals are blocked synchronously to the transmission clock by means of a blocking sampler (19), to be able to be compared to a reference voltage in a comparator (20). The result of this comparison gives the output signal 1 and the output signal 2.
  • Figure 4 shows the timing diagrams of the output signals (output 1 and output 2) for a mobile passing in the direction of first transmission element (1) towards second transmission element (2).
  • Niche-shaped signals appear when the receiving elements are not receive more signal.
  • FIG. 5 represents the timing diagrams of the output signals (output 1 and output 2) for a mobile passing in the direction of second transmission element (2) towards first transmission element (1).
  • Niche-shaped signals appear when the receiving elements are not receive more signal.
  • the device can be provided with 2 reception optics, each being associated with a receiving element (2 and 3).
  • the main industrial applications of the device are in particular the detection and determination of the direction of passage of mobiles moving alone or in a group and in various places for counting. For example, this is the count of people entering and leaving a means of transport for people (metro, bus, train ...) or a public or private place, metering in particular of objects passing on a conveyor belt, counting of vehicles ...

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Control Of Conveyors (AREA)

Claims (5)

  1. Vorrichtung zur Erfassung der Anwesenheit und der Passierrichtung von beweglichen Gegenständen, um diese zu zählen, umfassend zwei Infrarotsender (1, 4), deren Aufgabe es ist, jeweils einen Strahl in der Richtung eines beweglichen Gegenstands zu senden, und zwei Infrarot-Empfangselemente (2, 3), wobei die zwei Sender (1, 4) und die zwei Empfangselemente (2, 3) so gestaltet sind, dass sie in der Passierrichtung der beweglichen Gegenstände zwei Erfassungszonen im Raum erzeugen, so dass die Passierrichtung der beweglichen Gegenstände bestimmt werden kann, dadurch gekennzeichnet, dass sie ein Gehäuse aufweist, das folgendes beinhaltet: die beiden Sender (1, 4), die beiden Empfangselemente (2, 3), optische Sendemittel (5, 7), die das von den Sendern (1, 4) ausgesandte Licht fokussieren, optische Empfangsmittel (6), die den Lichtstrahl erfassen und fokussieren, der von einem eine Erfassungszone passierenden beweglichen Gegenstand reflektiert wird, und Elektronik zum Steuern der Sendeelemente (1, 4) und zur Verarbeitung der von den Empfangselementen (2, 3) empfangenen Signale, dadurch, dass die beiden Empfangselemente (2, 3) in einem Abstand von der optischen Achse der optischen Empfangsmittel (6) angeordnet sind, dadurch, dass die optische Achse der optischen Empfangsmittel (6) parallel zu den optischen Achsen der optischen Sendemittel ist, die zueinander parallel sind, dadurch, dass die Empfangselemente (2, 3) Infrarotdioden sind, die lotrecht zu den optischen Achsen der optischen Sendemittel (5, 7) ausgerichtet sind, und dadurch, dass die Anordnung des Sende- und des Empfangssystems den folgenden Beziehungen entspricht: x1 = f d min1 . D1 x1 + t = f d max1 . D1 x2 = f d min2 . D2 x2 + t = f d max2 . D1 wobei:
    t die Größe der Empfangselemente (2 und 3) ist;
    d min 1 der minimale Erfassungsabstand (12) des ersten Senders (1) und des ersten Empfangselementes (3) ist;
    d max 1 der maximale Erfassungsabstand (14) des ersten Senders (1) und des ersten Empfangselementes (3) ist;
    d min 2 der minimale Erfassungsabstand (13) des zweiten Senders (4) und des zweiten Empfangselementes (2) ist;
    d max 2 der maximale Erfassungsabstand (15) des zweiten Senders (4) und des zweiten Empfangselementes (2) ist;
    D1 der Achsabstand zwischen der ersten Sendeoptik (5) und den optischen Empfangsmitteln (6) ist;
    D2 der Achsabstand zwischen der zweiten Sendeoptik (7) und den optischen Empfangsmitteln (6) ist;
    f der Fokalabstand (16) der optischen Empfangsmittel (6) ist;
    x1 der Abstand (9) zwischen dem ersten Empfangselement (3) und der Achse der optischen Empfangsmittel (6) ist;
    x2 der Abstand (8) zwischen dem zweiten Empfangselement (2) und der Achse der optischen Empfangsmittel (6) ist.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Empfangselemente (2, 3) in derselben Ebene liegen.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Sender (1, 4) und die Empfangselemente (2, 3) in derselben Ebene lotrecht zu den optischen Achsen der optischen Sendemittel (5, 7) liegen.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass sie eine Empfangsoptik (6) umfasst, die von den Reflexionsstrahlen (10, 11) durchquert wird, die von den beiden Sendern (1, 4) ausgesendet wurden.
  5. Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Elektronik zum Steuern jedes Sendeelementes und zum Verarbeiten der von jedem Empfangselement empfangenen Signale einen Taktgeber (17) für Impulse zum Steuern jedes Senders, einen Verstärker (18) zum Verstärken der von jedem Empfangselement erzeugten Lichtsignale und eine Sperrsonde (19) umfasst, die mit dem genannten Taktgeber synchron ist und es ermöglicht, die verstärkten Signale zu sperren und sie mit Hilfe eines Komparators (20) mit einer Referenzspannung zu vergleichen.
EP95942739A 1994-06-08 1995-12-14 Vorrichtung zum erfassen der gegenwart und der passierrichtung von beweglichen gegenständen und personen mit der absicht, diese zu zählen Expired - Lifetime EP0867018B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9406962A FR2721126A1 (fr) 1994-06-08 1994-06-08 Dispositif de détection de présence et de sens de passage de mobiles et de personnes en vue du comptage.
PCT/FR1995/001473 WO1997022089A1 (fr) 1994-06-08 1995-12-14 Dispositif de detection de presence et de sens de passage de mobiles et de personnes en vue du comptage

Publications (2)

Publication Number Publication Date
EP0867018A1 EP0867018A1 (de) 1998-09-30
EP0867018B1 true EP0867018B1 (de) 2002-03-20

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EP95942739A Expired - Lifetime EP0867018B1 (de) 1994-06-08 1995-12-14 Vorrichtung zum erfassen der gegenwart und der passierrichtung von beweglichen gegenständen und personen mit der absicht, diese zu zählen

Country Status (6)

Country Link
EP (1) EP0867018B1 (de)
DE (1) DE69525981T2 (de)
ES (1) ES2173212T3 (de)
FR (1) FR2721126A1 (de)
PT (1) PT867018E (de)
WO (1) WO1997022089A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1797441B (zh) * 2004-12-21 2010-09-01 厦门雅迅网络股份有限公司 一种公交车客流量实时统计的方法

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2721126A1 (fr) * 1994-06-08 1995-12-15 Brime Sa Dispositif de détection de présence et de sens de passage de mobiles et de personnes en vue du comptage.
DE19520890A1 (de) * 1995-06-08 1996-12-12 Abb Patent Gmbh Anordnung zur Erfassung der Bewegungsrichtung von Personen
WO1998010375A1 (en) * 1996-09-02 1998-03-12 Assis Borges De Campos Paulo S Supervisory system of integral count
FR2779832B1 (fr) * 1998-06-15 2004-08-20 Quantaflow Appareil de detection d'obstacles
ES2151844B1 (es) 1998-09-22 2001-07-16 Eliop Sa Sistema de cuenta de personas por imagenes de presion
GB2354821A (en) * 1999-09-29 2001-04-04 Dine O Quick Threshold crossing counter
WO2003091955A1 (de) * 2002-04-24 2003-11-06 Markus Oppenberger Verfahren zum zählen von personen
FR2891078B1 (fr) * 2005-09-19 2008-02-01 Autoroutes Du Sud De La France Borne de distribution de titres de transit equipee d'un detecteur de depart.
CN103955980B (zh) * 2014-05-13 2017-02-15 温州亿通自动化设备有限公司 一种基于人体模型特征的公交车客流统计装置及处理方法
CN104102945A (zh) * 2014-07-15 2014-10-15 江西方迪科技有限公司 智能物体检测计数控制系统
CN106779035A (zh) * 2017-01-15 2017-05-31 上海与德信息技术有限公司 计数系统及方法
FR3115379B1 (fr) * 2020-10-16 2022-10-21 Eco Compteur Dispositif de comptage d’objets

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JPS5516278A (en) * 1978-07-21 1980-02-04 Giken Toreeteingu Kk Method of counting number of passengers
DE3618693A1 (de) * 1985-06-12 1986-12-18 Yoshida Kogyo K.K., Tokio/Tokyo Verfahren und vorrichtung zur feststellung der anwesenheit eines menschlichen koerpers
FR2602894B1 (fr) * 1986-07-29 1991-04-12 Besancon Cie Transports Systeme de comptage de mobiles traversant dans les deux sens une voie unique, a l'aide de cellules photoelectriques de detection directe
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US4993049A (en) * 1988-09-28 1991-02-12 Cupps Halbert D Electronic management system employing radar type infrared emitter and sensor combined with counter
JP2749191B2 (ja) * 1990-11-06 1998-05-13 新川電機株式会社 身長別通過人数の計数方法
US5138638A (en) * 1991-01-11 1992-08-11 Tytronix Corporation System for determining the number of shoppers in a retail store and for processing that information to produce data for store management
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FR2721126A1 (fr) * 1994-06-08 1995-12-15 Brime Sa Dispositif de détection de présence et de sens de passage de mobiles et de personnes en vue du comptage.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1797441B (zh) * 2004-12-21 2010-09-01 厦门雅迅网络股份有限公司 一种公交车客流量实时统计的方法

Also Published As

Publication number Publication date
PT867018E (pt) 2002-08-30
DE69525981D1 (de) 2002-04-25
EP0867018A1 (de) 1998-09-30
DE69525981T2 (de) 2002-11-21
ES2173212T3 (es) 2002-10-16
FR2721126A1 (fr) 1995-12-15
FR2721126B1 (de) 1997-02-28
WO1997022089A1 (fr) 1997-06-19

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