EP0718806B1 - Person counting device - Google Patents
Person counting device Download PDFInfo
- Publication number
- EP0718806B1 EP0718806B1 EP95120388A EP95120388A EP0718806B1 EP 0718806 B1 EP0718806 B1 EP 0718806B1 EP 95120388 A EP95120388 A EP 95120388A EP 95120388 A EP95120388 A EP 95120388A EP 0718806 B1 EP0718806 B1 EP 0718806B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- distance measuring
- measuring devices
- passage
- persons
- radiation
- 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
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- 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
- 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
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M7/00—Counting of objects carried by a conveyor
Definitions
- the invention relates to a device for counting people according to the preamble of claim 1.
- Devices of this type are known in different designs. The most common are light barriers, step mats, door contacts or Turnstiles used for this purpose. These devices meet the mentioned Incomplete purpose. Photoelectric sensors have a large error rate, because they cannot differentiate between people, animals and objects. Also Floor mats and door contacts are very unreliable because these are the Can not distinguish the direction of movement of the people to be counted. These devices are unusable for wider passages. turnstiles are perceived as obstacles.
- a device having the features of the preamble of claim 1 can be found in document US-A-5,187,688.
- sensors arranged in pairs in a row exclusively Elevation values are recorded, which are to be assigned to the persons in the passage are.
- the sensors detect no direction of movement or speed, so that the signals of two in succession for a determination of the movement arranged sensors must be used.
- For monitoring the Passage must therefore be quite a large number of expensive sensors and one complex evaluation electronics are used.
- US-A-4,528,679 discloses a similar system in which motion information is provided only by several sensors arranged one behind the other can be detected.
- the US-A-3,997,866 discloses a single sensor system which is not enables the monitoring of wider passages.
- GB-A-2 072 987 describes a general procedure for recording the number of in one people in a certain area using a radar Doppler sensor. The specific sensor arrangement and training for optimal Monitoring of a wide passage is not addressed here.
- the invention has for its object to provide a device with the help of different passes without much effort Width inconspicuously recorded the number of people passing through the passage can be, so that due to the possibly different Passages identified incoming and outgoing people Number of people in a room, site, or stadium People can be identified.
- Width of the radiation cone is preferably 50 cm to 100 cm.
- the distance measuring devices emit a signal as soon as there is any Area of passage a person through the radiation cone of each Distance measuring device moves.
- the fact that in the shoulder height people passing the passage the width of the radiation cone it does not allow two people at the same time side by side in the same Radiation cone are largely ensured that the signal of a Distance measuring device actually represents the passage of a person.
- Mutual interference from adjacent distance measuring devices are excluded by the fact that they work in a countercyclical pulsed manner or that they have different, non-influencing frequencies work.
- the distance between two distance measuring devices must be approximately the diameter of the Correspond to the radiation cone at shoulder height.
- the distance measuring devices can also be arranged closer or further to each other, with their Radiation cone central axes, however, are inclined laterally to the vertical, so that the desired overlap of the monitored area Shoulder height occurs.
- the evaluation device can be set so that, for example, only Counting signals that are triggered by reflecting surfaces, the distance from the ground is greater than 1.50 m. With this setting are those of children, suitcases, dogs, cats, shopping trolleys or such reflected rays are not detected and not registered.
- 1 and 2 are for counting people in one pass 1 two Radar range finders 3 about three meters above the ground 2 of the Passage 1 arranged.
- a radiation cone radiates from these devices 4 high-frequency electromagnetic waves down.
- the radar device is required for each meter of passage width. As the Fig. 2 shows the radars are directed in the direction of travel and set so that they only detect people who are moving on the devices, receiving stronger significant signals, or move away from these, weakening significant signals be received.
- the setting angle is ⁇ between the horizontal and the central axis 5 of the beam cone 4 65 to 70 °.
- the devices are like this set that they only record incoming or outgoing people.
- the reflected pulses contain information about the distance between the heads and shoulders to the radar device and thus the size of the detected Person, about the direction of movement and about the speed of the captured person.
- the analog signals of the two radars 3 are through a window discriminator evaluated.
- the logic levels of the discriminators will be linked in such a way that a useful count of people in any area of the passage is possible.
- the transmitters of radar sensors arranged next to one another are thus in the Pulse mode operated that a disturbance of neighboring radar sensors does not he follows.
- the radar sensors 3 have the advantage that they are inconspicuous on one Ceiling can be attached. Because the high-frequency electromagnetic Waves of the radar transmitter penetrate numerous non-metallic substances, the radars can be completely invisible behind a wallpaper or decoration can be arranged. This is with light or ultrasonic sensors not possible, so that such sensors are visible to the public are.
- FIG. 7 shows an alternative embodiment of the invention, in which the central axes 5 'of the radiation cone 4' not only in the direction of movement of people passing through, i.e. in the longitudinal direction of the Passage, but also inclined in the transverse direction of the passage.
- the distance measuring devices 3 ' can be close together and arrange in a common housing 15.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Radar Systems Or Details Thereof (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Pinball Game Machines (AREA)
- Slot Machines And Peripheral Devices (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Vorrichtung zum Zählen von Personen
gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for counting people
according to the preamble of
Vorrichtungen dieser Art sind in unterschiedlichen Ausführungen bekannt. Am häufigsten werden Lichtschranken, Trittmatten, Türkontakte oder Drehkreuze für diesen Zweck benutzt. Diese Geräte erfüllen den genannten Zweck nur unvollkommen. Lichtschranken haben eine große Fehlerquote, weil sie Personen, Tiere und Gegenstände nicht unterscheiden können. Auch Trittmatten sowie Türkontakte sind sehr unzuverlässig, weil diese die Bewegungsrichtung der zu zählenden Personen nicht unterscheiden können. Bei breiteren Durchgängen sind diese Geräte unbrauchbar. Drehkreuze werden als Hindernisse empfunden.Devices of this type are known in different designs. The most common are light barriers, step mats, door contacts or Turnstiles used for this purpose. These devices meet the mentioned Incomplete purpose. Photoelectric sensors have a large error rate, because they cannot differentiate between people, animals and objects. Also Floor mats and door contacts are very unreliable because these are the Can not distinguish the direction of movement of the people to be counted. These devices are unusable for wider passages. turnstiles are perceived as obstacles.
In öffentlichen Gebäuden wie Rathäusern, Schulen, Theatern, Festsälen, Museen, in Sportstadien, Kaufhäusern und dergleichen, ferner auf Verkehrsmitteln wie Schiffen, Flugzeugen und dergleichen ist das zuverlässige Erfassen von Personen aus statistischen und sicherheitstechnischen Gründen von großer Bedeutung. Ferner kann mit Hilfe der ermittelten Personenzahl die Heizung, die Belüftung, die Klimatisierung gesteuert werden, oder aus Sicherheitsgründen kann eine Überfüllung vermieden werden.In public buildings such as town halls, schools, theaters, ballrooms, Museums, in sports stadiums, department stores and the like, as well as on means of transport such as ships, airplanes and the like, this is reliable Capture people for statistical and security reasons of great importance. Furthermore, with the help of the determined number of people the heating, ventilation, air conditioning are controlled or off Overfilling can be avoided for safety reasons.
Eine die Merkmale des Oberbegriffs des Anspruchs 1 aufweisende Vorrichtung
ist dem Dokument US-A-5,187,688 zu entnehmen. Hier werden mit
jeweils paarweise hintereinander angeordneten Sensoren ausschließlich
Höhenwerte erfaßt, welche den Personen in dem Durchgang zuzuordnen
sind. Die Sensoren erfassen keine Bewegungsrichtung oder Geschwindigkeit,
so daß für eine Ermittlung der Bewegung die Signale zweier hintereinander
angeordneter Sensoren verwendet werden müssen. Für die Überwachung des
Durchgangs muß daher eine recht große Anzahl teurer Sensoren sowie eine
aufwendige Auswerteelektronik eingesetzt werden. Die US-A-4,528,679
offenbart ein ähnliches System, bei dem Bewegungsinformationen nur durch
mehrere hintereinander angeordnete Sensoren erfaßt werden können. Die
US-A-3,997,866 offenbart ein System mit einem Einzelsensor, welches nicht
die Überwachung breiterer Durchgänge ermöglicht. Die GB-A-2 072 987
beschreibt ein allgemeines Verfahren zur Erfassung der Zahl der in einem
bestimmten Bereich stehenbleibenden Personen mittels eines Radar-Doppler-Sensors.
Die konkrete Sensoranordnung und -ausbildung zur optimalen
Überwachung eines breiten Durchgangs wird hier nicht angesprochen.A device having the features of the preamble of
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zu schaffen, mit deren Hilfe ohne großen Aufwand an Durchgängen unterschiedlicher Breite unauffällig die Zahl der den Durchgang passierenden Personen erfaßt werden kann, so daß aufgrund der gegebenenfalls an unterschiedlichen Durchgängen ermittelten hineingehenden und herausgehenden Personen die Zahl der in einem Raum, einem Gelände oder einem Stadion befindlichen Personen ermittelt werden kann.The invention has for its object to provide a device with the help of different passes without much effort Width inconspicuously recorded the number of people passing through the passage can be, so that due to the possibly different Passages identified incoming and outgoing people Number of people in a room, site, or stadium People can be identified.
Diese Aufgabe wird gemäß der Erfindung durch die Merkmale des Anspruchs
1 gelöst. Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.This object is achieved according to the invention by the features of the
In einer Schulterhöhe etwa im Bereich von 1,4 m bis 2,0 m beträgt die Breite der Strahlungskegel vorzugsweise 50 cm bis 100 cm.At a shoulder height in the range of 1.4 m to 2.0 m this is Width of the radiation cone is preferably 50 cm to 100 cm.
Die Entfernungsmeßgeräte geben ein Signal ab, sobald sich in irgendeinem Bereich des Durchgangs eine Person durch den Strahlungskegel des jeweiligen Entfernungsmeßgeräts bewegt. Dadurch, daß in der Schulterhöhe der den Durchgang passierenden Personen die Breite des Strahlungskegels es nicht zuläßt, daß zwei Personen gleichzeitig nebeneinander im gleichen Strahlungskegel stehen, ist weitgehend sichergestellt, daß das Signal eines Entfernungsmeßgeräts tatsächlich das Hindurchgehen einer Person repräsentiert. Gegenseitige Störeinflüsse nebeneinanderliegender Entfernungsmeßgeräte werden dadurch ausgeschlossen, daß sie antizyklisch gepulst arbeiten oder daß sie mit unterschiedlichen, sich nicht beeinflussenden Frequenzen arbeiten.The distance measuring devices emit a signal as soon as there is any Area of passage a person through the radiation cone of each Distance measuring device moves. The fact that in the shoulder height people passing the passage the width of the radiation cone it does not allow two people at the same time side by side in the same Radiation cone are largely ensured that the signal of a Distance measuring device actually represents the passage of a person. Mutual interference from adjacent distance measuring devices are excluded by the fact that they work in a countercyclical pulsed manner or that they have different, non-influencing frequencies work.
Bei Entfernungsmeßgeräten, die nebeneinander im Durchgangsquerschnitt angeordnet sind und deren Strahlungskegel-Mittelachsen parallel verlaufen, muß der Abstand zweier Entfernungsmeßgeräte etwa dem Durchmesser des Strahlungskegels in Schulterhöhe entsprechen. Die Entfernungsmeßgeräte können auch näher oder weiter zueinander angeordnet werden, wobei ihre Strahlungskegel-Mittelachsen jedoch zur Senkrechten seitlich geneigt verlaufen, so daß die gewünschte Überlappung des überwachten Bereichs auf Schulterhöhe eintritt.For distance measuring devices that are next to each other in the passage cross section are arranged and their radiation cone central axes run parallel, the distance between two distance measuring devices must be approximately the diameter of the Correspond to the radiation cone at shoulder height. The distance measuring devices can also be arranged closer or further to each other, with their Radiation cone central axes, however, are inclined laterally to the vertical, so that the desired overlap of the monitored area Shoulder height occurs.
Das Auswertgerät kann dabei so eingestellt werden, daß beispielsweise nur Signale gezählt werden, die von reflektierenden Flächen ausgelöst werden, deren Abstand vom Boden größer ist als 1,50 m. Bei dieser Einstellung werden die von Kindern, Koffern, Hunden, Katzen, Einkaufswagen oder dergleichen reflektierten Strahlen nicht erfaßt und nicht registriert.The evaluation device can be set so that, for example, only Counting signals that are triggered by reflecting surfaces, the distance from the ground is greater than 1.50 m. With this setting are those of children, suitcases, dogs, cats, shopping trolleys or such reflected rays are not detected and not registered.
Wird eine Person von den Strahlenkegeln zweier Entfernungsmeßgeräte erfaßt und empfangen beide Geräte entsprechende Reflexionen, dann ist die Auswertung der beiden Signale derart, daß nur eine Person gezählt wird. Das Signal von im Randbereich des Entfernungsmeßgerätes stehenden Personen ist deutlich schwächer als das von Personen im Zentrum eines Strahlungskegels reflektierte Signal. Deshalb ist es möglich, solche gleichzeitig an zwei Geräten gemessenen Reflexionen als nur eine Person zu zählen. Dies geschieht entweder, daß die analogen Meßsignale Fensterdiskriminatoren zugeführt werden. Deren Signalfenster wird so begrenzt, daß die Signale zweier Entfernungsmeßgeräte von einer Person im Randbereich nur einfach gezählt werden. Alternativ können die Signale nebeneinanderliegender Entfernungsmeßgeräte bei Unterschreitung eines Grenzwertes miteinander analog multipliziert werden, so daß bei Personen im Grenzbereich zweier Entfernungsmeßgeräte aus dem schwachen, doppelten Signal ein starkes, einfaches gebildet wird.Becomes a person from the beam cones of two distance measuring devices if both devices detect and receive appropriate reflections, then the Evaluation of the two signals in such a way that only one person is counted. The signal from standing in the edge area of the distance measuring device People is significantly weaker than that of people in the center of one Radiation cone reflected signal. Therefore it is possible to do such at the same time reflections measured on two devices as only one person counting. This happens either that the analog measurement signals window discriminators be fed. The signal window is limited so that the signals of two distance measuring devices from one person in the peripheral area just be counted. Alternatively, the signals can be juxtaposed Distance measuring devices with each other when the limit is undershot be multiplied analogously, so that people in the border area two distance measuring devices from the weak, double signal strong, simple is made.
Zur Auswertung werden die Signale mehrerer Entfernungsmeßgeräte vorzugsweise einem gemeinsamen Mikroprozessor zugeführt. Die Entfernungsmeßgeräte sind so ausgebildet, daß sie normierte Signale abgeben, welche von dem Mikroprozessor ausgewertet und in die zu erfassenden Daten umgewandelt werden. Da das Auswertgerät von dem zentralen Mikroprozessor gebildet wird, kann durch Änderung der Prozessorprogrammierung der Auswert-Algorithmus zentral variiert und optimiert werden.The signals of several distance measuring devices are preferred for evaluation fed to a common microprocessor. The distance measuring devices are designed so that they emit standardized signals, which evaluated by the microprocessor and in the data to be recorded being transformed. As the evaluation device from the central microprocessor can be formed by changing the processor programming of the Evaluation algorithm can be varied and optimized centrally.
In der folgenden Beschreibung werden Ausführungsbeispiele unter Bezugnahme auf die Zeichnungen näher beschrieben. Die Zeichnungen zeigen in
- Fig. 1
- eine Draufsicht und
- Fig. 2
- eine Seitenansicht eines Durchganges mit erfindungsgemäßer Personenzähleinrichtung,
- Fig. 3
- ein Auswertgerät,
- Fig. 4 und 5
- zwei unterschiedliche Anschlüsse an einem Diskriminator,
- Fig. 6
- acht an einen Mikroprozessor angeschlossene Radar-Entfer nungsmeßgeräte eines Durchganges.
- Fig. 7
- eine Vorderansicht eines Durchganges mit alternativer Ausführungsform der Personenzähleinrichtung.
- Fig. 1
- a top view and
- Fig. 2
- a side view of a passage with a person counting device according to the invention,
- Fig. 3
- an evaluation device,
- 4 and 5
- two different connections to one discriminator,
- Fig. 6
- eight radar distance meters connected to a microprocessor.
- Fig. 7
- a front view of a passage with an alternative embodiment of the people counting device.
In den Fig. 1 und 2 sind zur Personenzählung an einem Durchgang 1 zwei
Radar-Entfernungsmeßgeräte 3 etwa drei Meter über dem Boden 2 des
Durchganges 1 angeordnet. Von diesen Geräten strahlt ein Strahlungskegel
4 hochfrequenter elektromagnetischer Wellen nach unten. Von Personen,
die den Durchgang aufrecht gehend passieren, werden - wegen der größeren
Nähe zum Radargerät - die Strahlen erheblich stärker reflektiert-als vom
Boden oder von Hunden oder Katzen, welche den Durchgang durchlaufen.
Je Meter Breite des Durchganges wird ein Radargerät benötigt. Wie die
Fig. 2 zeigt, sind die Radargeräte in Laufrichtung gerichtet und so eingestellt,
daß sie nur Personen erfassen, welche sich auf die Geräte zu bewegen,
wobei stärker werdende signifikante Signale empfangen werden, oder
von diesen weg bewegen, wobei schwächer werdende signifikante Signale
empfangen werden.1 and 2 are for counting people in one
Wie Fig. 2 zeigt, beträgt der Einstellwinkel α zwischen der Horizontalen
und der Mittelachse 5 des Strahlenkegels 4 65 bis 70°. Die Geräte sind so
eingestellt, daß sie nur eingehende oder ausgehende Personen erfassen. Die
reflektierten Impulse enthalten Informationen über den Abstand der Köpfe
und Schultern zum Radargerät und damit über die Größe der erfaßten
Person, über die Bewegungsrichtung und über die Geschwindigkeit der
erfaßten Person.As shown in FIG. 2, the setting angle is α between the horizontal
and the
In einem Durchgang 1 von 2 m Breite genügt die Anordnung von zwei
Radarsensoren 3, die im Abstand von 1 m symmetrisch zur Mitte des
Durchgangs 1 angeordnet werden. Die Radarsensoren können auch an
beiden Seiten des Durchganges oder beide auch in der Mitte des Durchganges
angeordnet und nach rechts und links so geneigt werden, daß ihre
Strahlungskegel eine Hälfte des Durchganges überdecken.In a
Die Analogsignale der beiden Radargeräte 3 werden durch einen Fensterdiskriminator
ausgewertet. Die logischen Pegel der Diskriminatoren werden
derart miteinander verknüpft, daß eine brauchbare Zählung von Personen in
jedem Bereich des Durchgangs möglich ist.The analog signals of the two
Die Sender nebeneinander angeordneter Radarsensoren werden derart im
Pulsbetrieb betrieben, daß eine Störung benachbarter Radarsensoren nicht
erfolgt. Die Radarsensoren 3 haben den Vorteil, daß sie unauffällig an einer
Decke angebracht werden können. Weil die hochfrequenten elektromagnetischen
Wellen des Radarsenders zahlreiche, nichtmetallische Stoffe durchdringen,
können die Radargeräte vollkommen unsichtbar hinter einer Tapete
oder Dekoration angeordnet werden. Dies ist bei Licht- oder Ultraschallsensoren
nicht möglich, so daß derartige Sensoren für das Publikum sichtbar
sind.The transmitters of radar sensors arranged next to one another are thus in the
Pulse mode operated that a disturbance of neighboring radar sensors does not
he follows. The
Eine differenzierte Signalauswertung ist mit Hilfe eines Mikroprozessors
gemäß Fig. 6 möglich. Die Mikroprozessor-Unterzentrale wertet die Signale
von acht Radargeräten 3 simultan aus. Damit können Durchgänge von 8 m
Breite überwacht werden. Die Unterzentrale sammelt Datensätze, die aus
Personenzahl pro Zeitabschnitt, wie Minute, Stunde oder Tag, bestehen
oder Tageszeitabschnitten zugeordneten Personenzahlen bestehen. Die
Unterzentralen können über eine Zweidrahtleitung mit einer Hauptzentrale
verbunden sein zur Datenkonzentration und Datenausgabe auf einen Drukker,
ein Display oder dergleichen. Die Programmierung der Datenerfassung,
-verwaltung und -übergabe kann weitgehend mit dem Anwender abgestimmt
werden.A differentiated signal evaluation is possible with the help of a
Die Fig. 7 zeigt schließlich eine alternative Ausführungsform der Erfindung,
bei der die Mittelachsen 5' der Strahlungskegel 4' nicht nur in Bewegungsrichtung
der durchgehenden Personen, also in Längsrichtung des
Durchgangs, sondern auch in Querrichtung des Durchgangs geneigt sind.
Auf diese Weise kann man die Entfernungsmeßgeräte 3' dicht beieinander
und in einem gemeinsamen Gehäuse 15 anordnen. 7 shows an alternative embodiment of the invention,
in which the central axes 5 'of the radiation cone 4' not only in the direction of movement
of people passing through, i.e. in the longitudinal direction of the
Passage, but also inclined in the transverse direction of the passage.
In this way, the distance measuring devices 3 'can be close together
and arrange in a
- 11
- Durchgangpassage
- 22
- Bodenground
- 3,3'3,3 '
- Entfernungsmeßgerätdistance measuring
- 4,4'4,4 '
- Strahlungskegelradiation cone
- 5,5'5.5 '
- Mittelachsecentral axis
- 66
- Montagefuß mit GelenkAssembly foot with joint
- 77
- Diskriminatordiscriminator
- 88th
- Zählwerkcounter
- 99
- RückstellknopfReset button
- 1010
- Reaktionsgrenzereaction border
- 1111
- Mikroprozessormicroprocessor
- 1212
- Hauptzentrale mit Drucker, DisplayCentral office with printer, display
- 1313
- ZweidrahtleitungTwo-wire line
- 1414
- Mittelebene des DurchgangsMiddle level of the passage
- 1515
- Gehäusecasing
Claims (8)
- A device for counting persons passing through a passage, in which at least one distance measuring device (3) is fitted above the floor (2) of the passage (1), which distance measuring device (3) emits a downwardly directed radiation cone (4) consisting of radar or ultrasound beams, receives the reflected beams and feeds the received signals to an evaluation device, two or more distance measuring devices (3) being fitted next to one another above the passage (1), the width of the radiation cone (4) detected by the distance measuring device corresponding, at a distance from the floor of the passage which corresponds to the average shoulder height of the detected persons, to one to two times the average shoulder width of the detected persons and the radiation cones (4) of all the distance measuring devices (3) covering the entire width of the passage (1), characterised in that the radiation cones (4) are inclined in the direction of the arriving or departing persons and the distance measuring devices are operated in pulsed mode or at different frequencies in such a way that distance measuring devices (3) located next to one another do not interfere with one another and the evaluation device evaluates the signals as a function of the strength and change over time thereof, such that the signals of the distance measuring devices are also evaluated as a function of the change in reflection values for the purpose of determining the direction of movement and/or the speed of movement of the detected person.
- A device according to claim 1, characterised in that the central axes (5) of the radiation cones (4) of the distance measuring devices (3) are projected vertically into the central plane (14) of the passage (1) and the distance between two distance measuring devices (3) corresponds to 1 to 2 times the average shoulder width of the detected persons.
- A device according to claim 1, characterised in that the distance measuring devices (3) exhibit a distance from one another which is greater than once and smaller than twice the average shoulder width of the detected persons, the central axes (5) of the radiation cones (4) of the distance measuring devices (3) being projected obliquely into the central plane (14) of the passage (1).
- A device according to one of the preceding claims, characterised in that the central axis (5) of the radiation cone (4) is inclined at an angle a of 50 - 70° in the direction of the arriving persons or the departing persons.
- A device according to one of the preceding claims, characterised in that the analogue signals of the distance measuring devices (3) are fed for evaluation to discriminators, the logic levels of which are linked together in such a way that optimum counting of persons is effected even in the overlap area of the radiation cones (4) from two adjacent distance measuring devices (3).
- A device according to one of claims 1 to 4, characterised in that the analogue signals of two adjacent distance measuring devices (3) are multiplied together in analogue form if they lie below a limiting value.
- A device according to one of claims 1 to 4, characterised in that a plurality of distance measuring devices (3) are connected to a microprocessor (11) for signal evaluation.
- A device according to claim 7, characterised in that the microprocessors (11) from two or more passages (1) are connected to a control centre (12), which may call up, receive and reproduce the data from a plurality of passages (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9420544U DE9420544U1 (en) | 1994-12-23 | 1994-12-23 | Device for counting people |
| DE9420544U | 1994-12-23 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0718806A2 EP0718806A2 (en) | 1996-06-26 |
| EP0718806A3 EP0718806A3 (en) | 1997-10-22 |
| EP0718806B1 true EP0718806B1 (en) | 2002-08-14 |
Family
ID=6917789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95120388A Expired - Lifetime EP0718806B1 (en) | 1994-12-23 | 1995-12-22 | Person counting device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0718806B1 (en) |
| AT (1) | ATE222389T1 (en) |
| DE (2) | DE9420544U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021127017A1 (en) | 2021-10-19 | 2023-04-20 | Wanzl GmbH & Co. KGaA | Access control and/or hygiene system |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10037099A1 (en) * | 2000-07-28 | 2002-02-07 | Wienand Hans Theo | Personenzählvorrichtung |
| AU2003223246A1 (en) * | 2002-04-24 | 2003-11-10 | Markus Oppenberger | Method for counting people |
| EP2267674A1 (en) * | 2009-06-11 | 2010-12-29 | Koninklijke Philips Electronics N.V. | Subject detection |
| EP2964558A4 (en) * | 2013-03-05 | 2016-11-02 | Kone Corp | Doorway of an elevator |
| CN110490030B (en) * | 2018-05-15 | 2023-07-14 | 保定市天河电子技术有限公司 | Method and system for counting number of people in channel based on radar |
| FR3086782B1 (en) | 2018-09-27 | 2021-12-03 | Aereco | DEVICE AND METHOD FOR COUNTING PEOPLE |
| EP4001958A1 (en) * | 2020-11-12 | 2022-05-25 | Continental Automotive GmbH | Passenger counting device and public transport vehicle |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5651588B2 (en) * | 1974-09-20 | 1981-12-07 | ||
| US4112419A (en) * | 1975-03-28 | 1978-09-05 | Hitachi, Ltd. | Apparatus for detecting the number of objects |
| US3997866A (en) * | 1975-03-31 | 1976-12-14 | Automation Industries, Inc. | Acoustic bus passenger counter |
| JPS5516278A (en) * | 1978-07-21 | 1980-02-04 | Giken Toreeteingu Kk | Method of counting number of passengers |
| FI63299C (en) * | 1980-03-27 | 1983-05-10 | Elevator Gmbh | FOERFARANDE FOER ATT RAEKNA PAO STAELLET UPPSTANNANDE OBJEKT |
| DE3301763C2 (en) * | 1983-01-20 | 1985-06-27 | REDAR Nah- Ortungstechnik GmbH, 6100 Darmstadt | Device for the exact, automatic counting of counting objects with a pronounced height extension passing through a lock arrangement |
| US4528679A (en) * | 1983-03-14 | 1985-07-09 | General Signal Corporation | Automatic counting system for passages |
| FR2602894B1 (en) * | 1986-07-29 | 1991-04-12 | Besancon Cie Transports | SYSTEM FOR COUNTING MOBILE THROUGHOUT BOTH SENSES A SINGLE CHANNEL USING DIRECT SENSING PHOTOELECTRIC CELLS |
| JP2749191B2 (en) * | 1990-11-06 | 1998-05-13 | 新川電機株式会社 | How to count the number of people passing by height |
| 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 |
| JP2963236B2 (en) * | 1991-05-02 | 1999-10-18 | エヌシーアール インターナショナル インコーポレイテッド | Passenger counting method |
-
1994
- 1994-12-23 DE DE9420544U patent/DE9420544U1/en not_active Expired - Lifetime
-
1995
- 1995-12-22 AT AT95120388T patent/ATE222389T1/en not_active IP Right Cessation
- 1995-12-22 EP EP95120388A patent/EP0718806B1/en not_active Expired - Lifetime
- 1995-12-22 DE DE59510325T patent/DE59510325D1/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021127017A1 (en) | 2021-10-19 | 2023-04-20 | Wanzl GmbH & Co. KGaA | Access control and/or hygiene system |
| EP4170612A1 (en) | 2021-10-19 | 2023-04-26 | Wanzl GmbH & Co. KGaA | Access control and / or hygiene system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0718806A3 (en) | 1997-10-22 |
| DE9420544U1 (en) | 1995-02-09 |
| EP0718806A2 (en) | 1996-06-26 |
| ATE222389T1 (en) | 2002-08-15 |
| DE59510325D1 (en) | 2002-09-19 |
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