EP0747865A2 - Dispositif de détermination du sens de déplacement d'une personne - Google Patents

Dispositif de détermination du sens de déplacement d'une personne Download PDF

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Publication number
EP0747865A2
EP0747865A2 EP96108837A EP96108837A EP0747865A2 EP 0747865 A2 EP0747865 A2 EP 0747865A2 EP 96108837 A EP96108837 A EP 96108837A EP 96108837 A EP96108837 A EP 96108837A EP 0747865 A2 EP0747865 A2 EP 0747865A2
Authority
EP
European Patent Office
Prior art keywords
arrangement according
infrared
infrared receiver
conductors
receiver
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Withdrawn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
EP96108837A
Other languages
German (de)
English (en)
Other versions
EP0747865A3 (fr
Inventor
Rainer Dr. Rosch
Günter Prof. Dr. Hofmann
Volkmar Dr. Norkus
Jens-Olaf Lang
Manfred Dr. Zimmerhackl
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.)
ABB Patent GmbH
Original Assignee
ABB Patent 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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0747865A2 publication Critical patent/EP0747865A2/fr
Publication of EP0747865A3 publication Critical patent/EP0747865A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
    • G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
    • 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 invention relates to an arrangement according to the preamble of claim 1.
  • the object of the invention is to provide an arrangement according to the preamble of claim 1 which is easy to install and does not require any critical adjustment of individual optical elements.
  • An essential advantage of the solution according to the invention is that a plurality of infrared transmitters arranged on one side of the room area interact with only one common infrared receiver, which is attached on the other side of the room area. If the receiver has a correspondingly wide detection angle, no critical optical alignment with the transmitter is required.
  • the light beams from the transmitters to the receiver form at least two light barriers that meet in the receiver. However, the light barriers must be distinguishable to the extent that an evaluation unit provided in the receiver can identify the respective light barrier and thus recognize its spatial positioning.
  • a logic circuit belonging to the receiver then only has to determine the direction of movement of the person interrupting the light barriers from the determined sequence of the interruptions registered at the light barriers.
  • the subject of the invention can be further developed the infrared transmitters are mounted on the wall surface of a wall delimiting the room area at such a large distance from one another that the light barriers enclose a correspondingly large room area extending in the horizontal direction.
  • the light barriers formed within this area are so far apart that the receiver can easily distinguish the individual light barriers in the event of an interruption.
  • a particularly simple method for forming several infrared transmitters is to apply electrically heatable conductors, preferably thin wires, to the wall surface with a defined resistance such that they extend vertically along the wall surface and are arranged at predetermined distances from one another. Care must be taken here that the dimensions of the wall area provided with heatable conductors are matched to the detection area of the receiver.
  • the infrared receiver can react with approximately the same sensitivity in both directions of movement, it is advantageous to position it so that the light rays coming from the heatable conductors to the receiver form isosceles triangles with the wall surface.
  • a distinction between the installed light barriers is essential for the operation of the arrangement. This is made possible, for example, by the fact that the electrically heatable conductors are connected to a control device which controls individual conductors or certain groups of conductors in such a way that they generate distinguishable infrared signals. This can e.g. in that the control device heats the electrically heatable conductors sequentially in the same order in succession. Alternatively, coding can also take place in that the control device controls the electrically heatable conductors in a different cycle.
  • the detection angle of the receiver is matched, but it should also be ensured that the angle included on the receiver between the light barriers is chosen so large that even in the vicinity of the receiver there is a sufficient distance between them for the separate effectiveness of the light barriers.
  • the electrically heatable conductors can be applied directly to a finished, possibly papered wall surface, adhering to it, e.g. be revived. But it is also possible to integrate it into a wallpaper and then apply it to the wall with the wallpaper.
  • the electrically heatable conductors are so thin and / or that they are to be applied the additional resources required on the wall form only such low contrasts that they remain largely invisible.
  • a plurality of infrared transmitters 3 in the form of electrically heatable conductors are applied in a room area 1 serving as a corridor on a wall surface 7 delimiting the corridor.
  • These have a defined resistance R1 to Rn, can be controlled individually and run vertically along the wall surface 7 of a wall 8 with a constant mutual horizontal distance.
  • R1 to Rn the resistance of the wall surface 7 of a wall 8
  • an infrared receiver 4 is fastened, the detection angle of which is so large that even the outermost electrically heatable conductors 3 or the light beams 2 emitted by them are still detected.
  • the light beams 2 which expand in a fan-like manner above the horizontal plane and meet in the infrared receiver 4 act as light barriers S, the interruption of which in the infrared receiver 4 causes switching pulses which can be evaluated in a suitable manner to determine the direction of movement of people.
  • the infrared receiver 4 can, if it should be necessary for security reasons, be relatively well hidden and the electrically heatable conductor 3 can be integrated into a wallpaper or, in the case of correspondingly thin wires, fasteners can be used in such a way that they are not noticed by an undesired visitor.
  • FIG. 3 and 4 illustrate how, with the aid of a sequential control of the electrically heatable conductors 3, distinguishable signals can be generated, from which the direction of movement results after their evaluation.
  • a first current pulse is applied to a second electrically heatable conductor with the resistor R2, the first electrically heatable conductor with the resistor R1 reaches a second current pulse, and a further electrically heated conductor with the resistor Rn heats a third current pulse.
  • the signal curve shown in FIG. 4 under I at the infrared receiver 4 results. If a person comes from the left, that is with the direction of movement A, they first interrupt the light barrier S with the resistance R1. In diagram II of FIG. 4, the middle pulse is missing. If, on the other hand, a person comes from the right with the direction of movement B, he first interrupts the rightmost light barrier S with the resistance Rn and in diagram III the last pulse is omitted.
  • the infrared receiver 4 is now constructed so that it can differentiate between the different signals and determine the direction of movement A, B therefrom.
  • FIG. 5 The simple block diagram shown in FIG. 5 is intended to illustrate the functional structure of the arrangement.
  • a control device 9 is used to control the infrared transmitter 3, which is done by a current pulse which causes a momentary temperature increase on the respective electrically heatable conductor 3 causes.
  • the control device 9 is also connected to the infrared receiver 4. Spatially, the control device 9 can thus be assigned to the infrared receiver 4 or the infrared transmitter 3 and integrated there into one of these structural units or arranged separately.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)
EP96108837A 1995-06-08 1996-06-01 Dispositif de détermination du sens de déplacement d'une personne Withdrawn EP0747865A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1995120890 DE19520890A1 (de) 1995-06-08 1995-06-08 Anordnung zur Erfassung der Bewegungsrichtung von Personen
DE19520890 1995-06-08

Publications (2)

Publication Number Publication Date
EP0747865A2 true EP0747865A2 (fr) 1996-12-11
EP0747865A3 EP0747865A3 (fr) 1998-09-30

Family

ID=7763896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96108837A Withdrawn EP0747865A3 (fr) 1995-06-08 1996-06-01 Dispositif de détermination du sens de déplacement d'une personne

Country Status (2)

Country Link
EP (1) EP0747865A3 (fr)
DE (1) DE19520890A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009146896A1 (fr) * 2008-06-03 2009-12-10 Cedes Ag Dispositif de sécurité et procédé pour la surveillance d'une zone surveillée
JP2013178129A (ja) * 2012-02-28 2013-09-09 Nec Computertechno Ltd 光電センサ及びこれを用いた被検出物の情報処理方法
CN105279821A (zh) * 2014-07-22 2016-01-27 无锡慧眼电子科技有限公司 一种基于角度灰度信息的行人计数方法
CN108255789A (zh) * 2016-12-28 2018-07-06 中国移动通信有限公司研究院 一种室内人数识别时随机样本的获取方法和装置
CN113561837A (zh) * 2021-05-21 2021-10-29 蓝谷智慧(北京)能源科技有限公司 换电控制方法、换电控制装置及计算机可读存储介质

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008014892U1 (de) 2008-11-10 2009-05-14 Electronic Thoma Gmbh Einrichtung zur Positionierung von Kollimatoren mit verstellbaren Lamellen eines Bestrahlungsgeräts
CN111354115B (zh) * 2018-12-20 2022-01-18 天地融科技股份有限公司 红外门禁管理的现场可编程门阵列fpga设备

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
GB785885A (en) * 1955-03-16 1957-11-06 Hadley Telephone & Sound Syste An electronically controlled counting device
SE391820B (sv) * 1974-09-26 1977-02-28 Almex Ab Anordning for automatisk passagerarrekning
DE2851444C2 (de) * 1978-11-28 1983-05-26 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Lichtgitter
US4272762A (en) * 1979-09-17 1981-06-09 Gte Laboratories Incorporated Exit-entry sensing apparatus
DE3213977A1 (de) * 1981-06-05 1982-12-23 VEB Wohnungsbaukombinat Halle, DDR 4010 Halle Verfahren und vorrichtung zum elektrischen heizen von raeumen
DE3616374A1 (de) * 1986-05-15 1987-11-19 Siemens Ag Pyrodetektor, vorzugsweise geeignet fuer bewegungs- und richtungsselektives detektieren
GB8708167D0 (en) * 1987-04-06 1987-05-13 R V Ltd Detection apparatus
EP0402829A3 (fr) * 1989-06-14 1991-06-12 Siemens Aktiengesellschaft Procédé et dispositif de détection d'intrus utilisant un détecteur de mouvement passif à infrarouge
DE3932681C2 (de) * 1989-09-29 2002-03-07 Siemens Ag Hochfehlalarmsicheres Objektsicherungssystem mit einer Vielzahl von Passiv-Infrarot-(IR)-Sensoren
DE4040811A1 (de) * 1990-12-14 1992-07-09 Iris Gmbh Infrared & Intellige Richtungsselektive zaehl- und schaltvorrichtung
DE4220508C2 (de) * 1992-06-22 1998-08-20 Iris Gmbh Infrared & Intellige Vorrichtung zur Erfassung von Personen
DE9211737U1 (de) * 1992-09-01 1993-02-25 Schwarz, Karl, 8875 Offingen Vorrichtung zur Überwachung eines Ganges, insbesondere eines Ganges zwischen Regalen eines Regallagers
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 (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009146896A1 (fr) * 2008-06-03 2009-12-10 Cedes Ag Dispositif de sécurité et procédé pour la surveillance d'une zone surveillée
JP2013178129A (ja) * 2012-02-28 2013-09-09 Nec Computertechno Ltd 光電センサ及びこれを用いた被検出物の情報処理方法
CN105279821A (zh) * 2014-07-22 2016-01-27 无锡慧眼电子科技有限公司 一种基于角度灰度信息的行人计数方法
CN105279821B (zh) * 2014-07-22 2018-01-09 江苏慧眼数据科技股份有限公司 一种基于角度灰度信息的行人计数方法
CN108255789A (zh) * 2016-12-28 2018-07-06 中国移动通信有限公司研究院 一种室内人数识别时随机样本的获取方法和装置
CN113561837A (zh) * 2021-05-21 2021-10-29 蓝谷智慧(北京)能源科技有限公司 换电控制方法、换电控制装置及计算机可读存储介质

Also Published As

Publication number Publication date
EP0747865A3 (fr) 1998-09-30
DE19520890A1 (de) 1996-12-12

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