EP0718806A2 - Person counting device - Google Patents

Person counting device Download PDF

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Publication number
EP0718806A2
EP0718806A2 EP95120388A EP95120388A EP0718806A2 EP 0718806 A2 EP0718806 A2 EP 0718806A2 EP 95120388 A EP95120388 A EP 95120388A EP 95120388 A EP95120388 A EP 95120388A EP 0718806 A2 EP0718806 A2 EP 0718806A2
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EP
European Patent Office
Prior art keywords
distance measuring
measuring devices
passage
people
radiation
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EP95120388A
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German (de)
French (fr)
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EP0718806A3 (en
EP0718806B1 (en
Inventor
Hans-Theo Wienand
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WIENAND HANS THEO
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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 who pass through a passage, on which at least one sensor is arranged, which responds to the passage of a person and feeds the reactions to a counter or a memory.
  • Devices of this type are known in different designs. Light barriers, step mats, door contacts or turnstiles are most often used for this purpose. These devices only fulfill the stated purpose incompletely. Photoelectric sensors have a large error rate because they cannot distinguish between people, animals and objects. Foot mats and door contacts are also very unreliable because they cannot distinguish the direction of movement of the people to be counted. These devices are unusable for wider passages. Turnstiles are perceived as obstacles.
  • the invention has for its object to provide a device by means of which the number of people passing through the passage can be detected inconspicuously without much effort at passages of different widths, so that the people entering and leaving ascertained at different passages, if necessary Number of people in a room, area or stadium can be determined.
  • the width of the radiation cone detected by the distance measuring device at a distance from the floor of the passage which corresponds to the average shoulder height of the persons detected
  • the 1- corresponds to up to 2 times the average shoulder width of the persons measured
  • the radiation cones of all distance measuring devices cover the entire width of the passage and the radiation cones are inclined in the direction of the incoming or outgoing persons and the distance measuring devices are operated in pulse mode or with different frequencies so that they are operated side by side located distance measuring devices do not interfere
  • the evaluation device evaluates the signals depending on their strength and change over time, so that the evaluation also depends on the change in reflection values for determining the direction of movement and / or the speed of movement of the person detected.
  • the width of the radiation cone is preferably 50 cm to 100 cm.
  • the distance measuring devices emit a signal as soon as a person moves through the radiation cone of the respective distance measuring device in any area of the passage. Because the width of the radiation cone at the shoulder height of the people passing through the passage does not allow two people to stand side by side in the same radiation cone, it is largely ensured that the signal from 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 an anticyclically pulsed manner or that they work with different, not influencing frequencies.
  • the distance between two distance measuring devices must correspond approximately to the diameter of the radiation cone at shoulder height.
  • the distance measuring devices can also be arranged closer or farther to one another, but their radiation cone central axes are laterally inclined to the vertical, so that the desired overlap of the monitored area occurs at shoulder height.
  • the evaluation device can be set so that, for example, only signals are triggered which are triggered by reflecting surfaces whose distance from the ground is greater than 1.50 m. With this setting, the rays reflected from children, suitcases, dogs, cats, shopping carts or the like are not detected and are not registered.
  • the evaluation of the two signals is such that only one person is counted.
  • the signal from people standing in the edge area of the distance measuring device is significantly weaker than the signal reflected from people in the center of a radiation cone. It is therefore possible to count such reflections measured on two devices at the same time as just one person. This happens either that the analog measurement signals are supplied to window discriminators. Their signal window is limited so that the signals of two distance measuring devices are only counted by one person in the peripheral area.
  • the signals of adjacent distance measuring devices can be multiplied with each other in an analog manner if the limit value is undershot, so that people in the limit range two distance measuring devices from the weak, double signal a strong, simple is formed.
  • the signals of several distance measuring devices are preferably fed to a common microprocessor.
  • the distance measuring devices are designed such that they emit standardized signals which are evaluated by the microprocessor and converted into the data to be recorded. Since the evaluation device is formed by the central microprocessor, the evaluation algorithm can be varied and optimized centrally by changing the processor programming.
  • two radar distance measuring devices 3 are arranged about three meters above the floor 2 of the passage 1 for counting people on a passage 1.
  • a radiation cone of 4 high-frequency electromagnetic waves radiates downward from these devices. Because of the closer proximity to the radar device, people who pass the passageway upright are reflected much more strongly than from the floor or from dogs or cats that pass through the passageway.
  • a radar device is required for each meter of passage width. As the Fig. 2 shows the radars are directional and set to only detect people moving towards the devices, receiving stronger signals, or moving away from them, receiving weaker significant signals .
  • the setting angle ⁇ between the horizontal and the central axis 5 of the beam cone 4 is 65 to 70 °.
  • the devices are set so that they only detect incoming or outgoing people.
  • the reflected impulses contain information about the distance of the heads and shoulders to the radar device and thus about the size of the person being detected, the direction of movement and the speed of the person being detected.
  • the radar sensors can also be arranged on both sides of the passage or both in the middle of the passage and tilted to the right and left so that their radiation cones cover half of the passage.
  • the analog signals of the two radar devices 3 are evaluated by a window discriminator.
  • the logic levels of the discriminators are linked together in such a way that a useful count of people is possible in every area of the passage.
  • the transmitters of radar sensors arranged next to one another are operated in pulsed mode in such a way that adjacent radar sensors are not disturbed.
  • the radar sensors 3 have the advantage that they can be attached to a ceiling inconspicuously. Because the high-frequency electromagnetic waves of the radar transmitter penetrate numerous, non-metallic substances, the radar devices can be completely invisible behind a wallpaper or decoration can be arranged. This is not possible with light or ultrasonic sensors, so that such sensors are visible to the public.
  • the microprocessor sub-center evaluates the signals from eight radar devices 3 simultaneously. This means that passages 8 m wide can be monitored.
  • the sub-center collects data records that consist of the number of people per time segment, such as minute, hour or day, or of the number of people assigned to time segments.
  • the sub-centers can be connected via a two-wire line to a main center for data concentration and data output on a printer, a display or the like. The programming of data acquisition, management and transfer can largely be coordinated with the user.
  • FIG. 7 shows an alternative embodiment of the invention, in which the central axes 5 'of the radiation cone 4' are inclined not only in the direction of movement of the people passing through, that is to say in the longitudinal direction of the passage, but also in the transverse direction of the passage.
  • the distance measuring devices 3 ' can be arranged close together and in a common housing 15.

Abstract

The counting device has at least one range measuring device (3) positioned above the access point (1), using a radar beam for detecting the passage of a person through the access point by evaluation of the reflected radiation, for indexing a counter. The radar range measuring device provides a beam with a width of between 1 and 2 times the width of a person passing through the access point at shoulder height and angled to allow detection of the movement direction or the movement velocity.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Zählen von Personen, die einen Durchgang passieren, an dem mindestens ein Sensor angeordnet ist, der auf das Passieren einer Person reagiert und die Reaktionen einem Zählwerk oder einem Speicher zuführt.The invention relates to a device for counting people who pass through a passage, on which at least one sensor is arranged, which responds to the passage of a person and feeds the reactions to a counter or a memory.

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. Light barriers, step mats, door contacts or turnstiles are most often used for this purpose. These devices only fulfill the stated purpose incompletely. Photoelectric sensors have a large error rate because they cannot distinguish between people, animals and objects. Foot mats and door contacts are also very unreliable because they cannot 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, the reliable detection of people for statistical and security reasons is of great importance. Furthermore, the heating, ventilation, air conditioning can be controlled with the help of the determined number of people, or overfilling can be avoided for safety reasons.

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 by means of which the number of people passing through the passage can be detected inconspicuously without much effort at passages of different widths, so that the people entering and leaving ascertained at different passages, if necessary Number of people in a room, area or stadium can be determined.

Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß zwei oder mehr Entfernungsmeßgeräte nebeneinander über dem Durchgang angebracht sind, wobei die Breite des von dem Entfernungsmeßgerät erfaßten Strahlungskegels in einem Abstand zum Boden des Durchgangs, welcher der durchschnittlichen Schulterhöhe der erfaßten Personen entspricht, dem 1- bis 2-fachen der durchschnittlichen Schulterbreite der erfaßten Personen entspricht und wobei die Strahlungskegel sämtlicher Entfernungsmeßgeräte die gesamte Breite des Durchgangs abdecken und die Strahlungskegel in Richtung der ankommenden oder weggehenden Personen geneigt sind und die Entfernungsmeßgeräte im Pulsbetrieb oder mit unterschiedlichen Frequenzen so betrieben werden, daß nebeneinander befindliche Entfernungsmeßgeräte sich nicht stören und das Auswertgerät die Signale in Abhängigkeit von ihrer Stärke und zeitlicher Veränderung auswertet, so daß die Auswertung auch in Abhängigkeit der Änderung der Reflexionswerte zur Bestimmung der Bewegungsrichtung und/oder der Bewegungsgeschwindigkeit der erfaßten Person erfolgt. 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.This object is achieved according to the invention in that two or more distance measuring devices are arranged next to one another above the passage, the width of the radiation cone detected by the distance measuring device at a distance from the floor of the passage which corresponds to the average shoulder height of the persons detected, the 1- corresponds to up to 2 times the average shoulder width of the persons measured and the radiation cones of all distance measuring devices cover the entire width of the passage and the radiation cones are inclined in the direction of the incoming or outgoing persons and the distance measuring devices are operated in pulse mode or with different frequencies so that they are operated side by side located distance measuring devices do not interfere and the evaluation device evaluates the signals depending on their strength and change over time, so that the evaluation also depends on the change in reflection values for determining the direction of movement and / or the speed of movement of the person detected. At a shoulder height of approximately 1.4 m to 2.0 m, the 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 a person moves through the radiation cone of the respective distance measuring device in any area of the passage. Because the width of the radiation cone at the shoulder height of the people passing through the passage does not allow two people to stand side by side in the same radiation cone, it is largely ensured that the signal from 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 an anticyclically pulsed manner or that they work with different, not influencing frequencies.

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.In the case of distance measuring devices which are arranged next to one another in the passage cross section and whose radiation cone central axes run parallel, the distance between two distance measuring devices must correspond approximately to the diameter of the radiation cone at shoulder height. The distance measuring devices can also be arranged closer or farther to one another, but their radiation cone central axes are laterally inclined to the vertical, so that the desired overlap of the monitored area occurs at shoulder height.

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 signals are triggered which are triggered by reflecting surfaces whose distance from the ground is greater than 1.50 m. With this setting, the rays reflected from children, suitcases, dogs, cats, shopping carts or the like are not detected and are 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.If a person is detected by the radiation cones of two distance measuring devices and both devices receive corresponding reflections, the evaluation of the two signals is such that only one person is counted. The signal from people standing in the edge area of the distance measuring device is significantly weaker than the signal reflected from people in the center of a radiation cone. It is therefore possible to count such reflections measured on two devices at the same time as just one person. This happens either that the analog measurement signals are supplied to window discriminators. Their signal window is limited so that the signals of two distance measuring devices are only counted by one person in the peripheral area. Alternatively, the signals of adjacent distance measuring devices can be multiplied with each other in an analog manner if the limit value is undershot, so that people in the limit range two distance measuring devices from the weak, double signal a strong, simple is formed.

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.For the evaluation, the signals of several distance measuring devices are preferably fed to a common microprocessor. The distance measuring devices are designed such that they emit standardized signals which are evaluated by the microprocessor and converted into the data to be recorded. Since the evaluation device is formed by the central microprocessor, the evaluation algorithm can be varied and optimized centrally by changing the processor programming.

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-Entfernungsmeßgeräte eines Durchganges.
Fig. 7
eine Vorderansicht eines Durchganges mit alternativer Ausführungsform der Personenzähleinrichtung.
In the following description, exemplary embodiments are described in more detail with reference to the drawings. The drawings show in
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 one-pass radar range 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, two radar distance measuring devices 3 are arranged about three meters above the floor 2 of the passage 1 for counting people on a passage 1. A radiation cone of 4 high-frequency electromagnetic waves radiates downward from these devices. Because of the closer proximity to the radar device, people who pass the passageway upright are reflected much more strongly than from the floor or from dogs or cats that pass through the passageway. A radar device is required for each meter of passage width. As the Fig. 2 shows the radars are directional and set to only detect people moving towards the devices, receiving stronger signals, or moving away from them, receiving weaker significant signals .

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 α between the horizontal and the central axis 5 of the beam cone 4 is 65 to 70 °. The devices are set so that they only detect incoming or outgoing people. The reflected impulses contain information about the distance of the heads and shoulders to the radar device and thus about the size of the person being detected, the direction of movement and the speed of the person being detected.

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 passage 1 of 2 m width, the arrangement of two radar sensors 3, which are arranged symmetrically to the center of the passage 1 at a distance of 1 m, is sufficient. The radar sensors can also be arranged on both sides of the passage or both in the middle of the passage and tilted to the right and left so that their radiation cones cover half of the passage.

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 radar devices 3 are evaluated by a window discriminator. The logic levels of the discriminators are linked together in such a way that a useful count of people is possible in every area of the passage.

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 operated in pulsed mode in such a way that adjacent radar sensors are not disturbed. The radar sensors 3 have the advantage that they can be attached to a ceiling inconspicuously. Because the high-frequency electromagnetic waves of the radar transmitter penetrate numerous, non-metallic substances, the radar devices can be completely invisible behind a wallpaper or decoration can be arranged. This is not possible with light or ultrasonic sensors, so that such sensors are visible to the public.

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 Drucker, 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 aid of a microprocessor according to FIG. 6. The microprocessor sub-center evaluates the signals from eight radar devices 3 simultaneously. This means that passages 8 m wide can be monitored. The sub-center collects data records that consist of the number of people per time segment, such as minute, hour or day, or of the number of people assigned to time segments. The sub-centers can be connected via a two-wire line to a main center for data concentration and data output on a printer, a display or the like. The programming of data acquisition, management and transfer can largely be coordinated with the user.

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.Finally, FIG. 7 shows an alternative embodiment of the invention, in which the central axes 5 'of the radiation cone 4' are inclined not only in the direction of movement of the people passing through, that is to say in the longitudinal direction of the passage, but also in the transverse direction of the passage. In this way, the distance measuring devices 3 'can be arranged close together and in a common housing 15.

Bezugszeichenliste:Reference symbol list:

11
DurchgangContinuity
22nd
Bodenground
3,3'3.3 '
EntfernungsmeßgerätDistance measuring device
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
1010th
ReaktionsgrenzeReaction limit
1111
Mikroprozessormicroprocessor
1212th
Hauptzentrale mit Drucker, DisplayCentral office with printer, display
1313
ZweidrahtleitungTwo-wire line
1414
Mittelebene des DurchgangsMiddle level of the passage
1515
Gehäusecasing

Claims (8)

Vorrichtung zum Zählen von Personen, die einen Durchgang passieren, bei der über dem Boden (2) des Durchganges (1) mindestens ein Entfernungsmeßgerät (3) angebracht ist, welches einen nach unten gerichteten Strahlungskegel (4) aus Radar- oder Ultraschallstrahlen aussendet, die reflektierten Strahlen empfängt und die empfangenen Signale einem Auswertgerät zuführt, dadurch gekennzeichnet, daß zwei oder mehr Entfernungsmeßgeräte (3) nebeneinander über dem Durchgang (1) angebracht sind, wobei die Breite des von dem Entfernungsmeßgerät erfaßten Strahlungskegels (4) in einem Abstand zum Boden des Durchgangs, welcher der durchschnittlichen Schulterhöhe der erfaßten Personen entspricht, dem 1- bis 2-fachen der durchschnittlichen Schulterbreite der erfaßten Personen entspricht und wobei die Strahlungskegel (4) sämtlicher Entfernungsmeßgeräte (3) die gesamte Breite des Durchgangs (1) abdecken und die Strahlungskegel (4) in Richtung der ankommenden oder weggehenden Personen geneigt sind und die Entfernungsmeßgeräte im Pulsbetrieb oder mit unterschiedlichen Frequenzen so betrieben werden, daß nebeneinander befindliche Entfernungsmeßgeräte (3) sich nicht stören und das Auswertgerät die Signale in Abhängigkeit von ihrer Stärke und zeitlicher Veränderung auswertet, so daß die Auswertung auch in Abhängigkeit der Änderung der Reflexionswerte zur Bestimmung der Bewegungsrichtung und/oder der Bewegungsgeschwindigkeit der erfaßten Person erfolgt.Device for counting people who pass through a passage in which at least one distance measuring device (3) is attached above the bottom (2) of the passage (1) and emits a downward-pointing radiation cone (4) made of radar or ultrasound beams which receives reflected rays and feeds the received signals to an evaluation device, characterized in that two or more distance measuring devices (3) are arranged side by side above the passage (1), the width of the radiation cone (4) detected by the distance measuring device being at a distance from the bottom of the Passage, which corresponds to the average shoulder height of the persons surveyed, corresponds to 1 to 2 times the average shoulder width of the persons surveyed and the radiation cones (4) of all distance measuring devices (3) cover the entire width of the passage (1) and the radiation cones ( 4) in the direction of the incoming or outgoing persons g are inclined and the distance measuring devices are operated in pulse mode or with different frequencies so that adjacent measuring devices (3) do not interfere and the evaluation device evaluates the signals depending on their strength and change over time, so that the evaluation also in dependence on the change in Reflection values for determining the direction of movement and / or the speed of movement of the detected person takes place. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Projektion der Mittelachsen (5) des Strahlungskegels (4) der Entfernungsmeßgeräte (3) in die Mittelebene (14) des Durchgangs (1) senkrecht verlaufen und der Abstand zweier Entfernungsmeßgeräte (3) zueinander dem 1- bis 2-fachen der durchschnittlichen Schulterbreite der erfaßten Personen entspricht.Device according to Claim 1, characterized in that the projection of the central axes (5) of the radiation cone (4) of the distance measuring devices (3) into the central plane (14) of the passage (1) is perpendicular and the distance between two distance measuring devices (3) is the 1st - corresponds to up to 2 times the average shoulder width of the persons recorded. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Entfernungsmeßgeräte (3) einen Abstand zueinander aufweisen, der größer als das 1-fache und kleiner als das 2-fache der durchschnittlichen Schulterbreite der erfaßten Personen ist, wobei die Projektion der Mittelachsen (5) des Strahlungskegels (4) der Entfernungsmeßgeräte (3) in die Mittelebene (14) des Durchgangs (1) schräg verlaufen.Apparatus according to claim 1, characterized in that the distance measuring devices (3) are at a distance from one another which is greater than 1 times and less than 2 times the average shoulder width of the persons detected, the projection of the central axes (5) of the Radiation cone (4) of the distance measuring devices (3) run obliquely into the central plane (14) of the passage (1). Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Mittelachse (5) des Strahlungskegels (4) im Winkel α von 50 - 70° in Richtung zu den ankommenden Personen oder zu den weggehenden Personen geneigt ist.Device according to one of the preceding claims, characterized in that the central axis (5) of the radiation cone (4) is inclined at an angle α of 50-70 ° towards the arriving people or the leaving people. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Analogsignale der Entfernungsmeßgeräte (3) Diskriminatoren zur Auswertung zugeführt werden, deren logische Pegel derart miteinander verknüpft sind, daß eine optimale Zählung von Personen auch in dem Überlappungsbereich der Strahlungskegel (4) zweier benachbarter Entfernungsmeßgeräte (3) erfolgt.Device according to one of the preceding claims, characterized in that the analog signals from the distance measuring devices (3) are fed to discriminators for evaluation, the logical levels of which are linked to one another in such a way that optimum counting of people also in the overlapping area of the radiation cones (4) of two adjacent distance measuring devices (3) is done. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Analogsignale zweier benachbarter Entfernungsmeßgeräte (3) miteinander analog multipliziert werden, wenn sie unterhalb eines Grenzwerts liegen.Device according to one of claims 1 to 4, characterized in that the analog signals of two adjacent distance measuring devices (3) are multiplied together in an analog manner if they are below a limit value. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß mehrere Entfernungsmeßgeräte (3) zur Auswertung der Signale an einen Mikroprozessor (11) angeschlossen sind.Device according to one of claims 1 to 4, characterized in that several distance measuring devices (3) for evaluating the signals are connected to a microprocessor (11). Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Mikroprozessoren (11) von zwei oder mehr Durchgängen (1) an einer Zentrale (12) angeschlossen sind, welche die Daten mehrerer Durchgänge (1) abrufen, empfangen und wiedergeben kann.Apparatus according to claim 7, characterized in that the microprocessors (11) of two or more passages (1) are connected to a center (12) which can retrieve, receive and reproduce the data of several passages (1).
EP95120388A 1994-12-23 1995-12-22 Person counting device Expired - Lifetime EP0718806B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9420544U 1994-12-23
DE9420544U DE9420544U1 (en) 1994-12-23 1994-12-23 Device for counting people

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EP0718806A2 true EP0718806A2 (en) 1996-06-26
EP0718806A3 EP0718806A3 (en) 1997-10-22
EP0718806B1 EP0718806B1 (en) 2002-08-14

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DE10037099A1 (en) * 2000-07-28 2002-02-07 Wienand Hans Theo Personenzählvorrichtung
WO2003091955A1 (en) * 2002-04-24 2003-11-06 Markus Oppenberger Method for counting people
CN102460528A (en) * 2009-06-11 2012-05-16 皇家飞利浦电子股份有限公司 Subject detection
US20150344265A1 (en) * 2013-03-05 2015-12-03 Kone Corporation Doorway of an elevator
CN110490030A (en) * 2018-05-15 2019-11-22 保定市天河电子技术有限公司 A kind of channel demographic method and system based on radar
EP3629307A1 (en) 2018-09-27 2020-04-01 Aereco Device and method for counting people

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EP4001958A1 (en) * 2020-11-12 2022-05-25 Continental Automotive GmbH Passenger counting device and public transport vehicle
DE102021127017A1 (en) 2021-10-19 2023-04-20 Wanzl GmbH & Co. KGaA Access control and/or hygiene system

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DE10037099A1 (en) * 2000-07-28 2002-02-07 Wienand Hans Theo Personenzählvorrichtung
WO2002011075A1 (en) 2000-07-28 2002-02-07 Wienand Hans Theo People counter
WO2003091955A1 (en) * 2002-04-24 2003-11-06 Markus Oppenberger Method for counting people
CN102460528A (en) * 2009-06-11 2012-05-16 皇家飞利浦电子股份有限公司 Subject detection
US20150344265A1 (en) * 2013-03-05 2015-12-03 Kone Corporation Doorway of an elevator
US9963322B2 (en) * 2013-03-05 2018-05-08 Kone Corporation Monitoring traffic units served by elevator via radio signals transmitted across doorway of an elevator
CN110490030A (en) * 2018-05-15 2019-11-22 保定市天河电子技术有限公司 A kind of channel demographic method and system based on radar
EP3629307A1 (en) 2018-09-27 2020-04-01 Aereco Device and method for counting people
FR3086782A1 (en) 2018-09-27 2020-04-03 Aereco DEVICE AND METHOD FOR COUNTING PEOPLE

Also Published As

Publication number Publication date
EP0718806A3 (en) 1997-10-22
ATE222389T1 (en) 2002-08-15
DE9420544U1 (en) 1995-02-09
DE59510325D1 (en) 2002-09-19
EP0718806B1 (en) 2002-08-14

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