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EP4332038B1 - Person counting device for a lift - Google Patents

Person counting device for a lift Download PDF

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Publication number
EP4332038B1
EP4332038B1 EP22193739.4A EP22193739A EP4332038B1 EP 4332038 B1 EP4332038 B1 EP 4332038B1 EP 22193739 A EP22193739 A EP 22193739A EP 4332038 B1 EP4332038 B1 EP 4332038B1
Authority
EP
European Patent Office
Prior art keywords
person
acceleration
lift car
counting device
threshold value
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.)
Active
Application number
EP22193739.4A
Other languages
German (de)
French (fr)
Other versions
EP4332038A1 (en
EP4332038C0 (en
Inventor
Jianyong Wen
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.)
Cedes AG
Original Assignee
Cedes AG
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 Cedes AG filed Critical Cedes AG
Priority to EP22193739.4A priority Critical patent/EP4332038B1/en
Priority to US18/453,542 priority patent/US20240076161A1/en
Priority to CN202311127296.9A priority patent/CN117645216A/en
Publication of EP4332038A1 publication Critical patent/EP4332038A1/en
Application granted granted Critical
Publication of EP4332038B1 publication Critical patent/EP4332038B1/en
Publication of EP4332038C0 publication Critical patent/EP4332038C0/en
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/02—Control systems without regulation, i.e. without retroactive action
    • B66B1/06—Control systems without regulation, i.e. without retroactive action electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3476—Load weighing or car passenger counting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
    • B66B3/002—Indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0012—Devices monitoring the users of the elevator system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B2201/00—Aspects of control systems of elevators
    • B66B2201/20—Details of the evaluation method for the allocation of a call to an elevator car
    • B66B2201/222—Taking into account the number of passengers present in the elevator car to be allocated

Definitions

  • People counting devices that use video analysis are known from the state of the art. People counting devices with acceleration measurements or with a combination of weight sensors and light barriers are also known, for example from EP 2 107 999 B1 or the CN 110371 810 A known.
  • the people counting device is a people counting device for an elevator with an elevator car with an entrance for determining when a person enters or leaves an elevator car, with a presence sensor at the entrance of the elevator car for detecting the presence of a person in the area of the entrance or when a person passes through the entrance and for outputting a detection signal when there is presence or passage, with an accelerometer on the elevator car for detecting the vertical acceleration of the elevator car and for outputting positive and negative acceleration values in relation to the upward direction of movement of the elevator car, and with an evaluation device which is designed to receive a series of current acceleration values for a specific period of time when the detection signal is received and to analyze whether one of the acceleration values or the movement course resulting therefrom exceeds an upper threshold value or falls below a lower threshold value and to output or process a signal for a person entering the elevator car when the lower threshold value has been undershot and to output a signal for a person leaving the elevator car or to process if the upper threshold has been exceeded.
  • Entering means that a person moves from the space in front of the elevator car through the passage of the open elevator door into the elevator car.
  • Exiting means that a person moves from inside the elevator car through the passage of the open elevator door into the space in front of the elevator car.
  • reception means at the start of reception.
  • the detection signal as well as the specific time period always occurs when the elevator car stops at a stop and when the elevator car door is open.
  • Positive acceleration values correspond to an acceleration of the elevator car upwards, i.e. towards the shaft head.
  • Negative acceleration values correspond to an acceleration of the elevator car downwards, i.e. towards the shaft pit.
  • the upper threshold value is preferably a positive acceleration value.
  • the lower threshold value is preferably a negative acceleration value.
  • the evaluation device is designed to sum the signals for entering to a value and to subtract the signals for leaving from the value and to output the value for the number of persons in the elevator car and in particular to set the value to zero after a certain period of time of a stop without a signal.
  • the specific time period is between 0.05 and 1 second, in particular between 0.1 and 0.5 seconds, in particular between 0.2 and 0.3 seconds.
  • the acceleration sensor is attached to the presence sensor.
  • the presence sensor and the acceleration sensor have the same carrier.
  • the presence sensor and the acceleration sensor have the same housing.
  • the evaluation device is integrated in the presence sensor.
  • the presence sensor is a light grid or a light barrier.
  • the evaluation device has a device for wireless radio transmission.
  • Fig. 1 shows an acceleration diagram 10 for a person entering the elevator car.
  • the X-axis shows the time course 11 and the Y-axis shows the acceleration 12.
  • a lower threshold value 21 for the acceleration shows a negative acceleration, i.e. an acceleration of the elevator car downwards.
  • At the intersection of the time axis 11 with the acceleration axis 12 is the zero point 22 of the acceleration, i.e. no acceleration of the elevator car.
  • An upper threshold value 23 for the acceleration shows a positive acceleration, i.e. an acceleration of the elevator car upwards.
  • the signal time is the time 0 at the intersection of the time axis 11 with the acceleration axis 12.
  • a light barrier is attached to the doors of the elevator car and monitors the entrance to the elevator car.
  • An accelerometer for measuring the vertical acceleration and an evaluation device are integrated into the housing of the light barrier.
  • a person interrupts the light barrier at the entrance to the elevator car in order to enter the elevator car.
  • the light barrier sends a detection signal to the evaluation device.
  • the evaluation device receives the detection signal. In the case of a persistent detection signal, only the start of the detection signal is relevant.
  • the start of reception of the detection signal is time 0.
  • the elevator control starts a timer until a certain period of time 24 has elapsed.
  • the evaluation device receives values from the accelerometer for the acceleration of the elevator car, which show the course of the acceleration curve 31.
  • the evaluation device analyzes the acceleration values and recognizes that at least one acceleration value falls below the lower threshold value 21 and sends a signal for a person entering the elevator car via a radio device to a server.
  • Fig. 2 shows an acceleration diagram 10 for a person leaving the elevator car according to Fig. 1 .
  • a person interrupts the light barrier at the entrance to the elevator car in order to leave the elevator car.
  • the light barrier sends a detection signal to the evaluation device.
  • the evaluation device receives the detection signal. In the case of a persistent detection signal, only the beginning of the detection signal is relevant. The beginning of the reception of the The time of detection signal is 0.
  • the elevator control starts a timer until a certain period of time 24 has elapsed.
  • the evaluation device receives values from the accelerometer for the acceleration of the elevator car, which show the course of the acceleration curve 32.
  • the evaluation device analyzes the acceleration values and recognizes that at least one acceleration value exceeds the upper threshold value 23 and sends a signal for a person to leave the elevator car via a radio device to a server.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mechanical Engineering (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)

Description

Aus dem Stand der Technik sind Personenzähleinrichtungen bekannt, welche Videoanalyse benutzen. Auch Personenzähleinrichtungen mit Beschleunigungsmessungen oder mit einer Kombination aus Gewichtssensor und Lichtschranken sind beispielsweise aus der EP 2 107 999 B1 bzw. der CN 110371 810 A bekannt.People counting devices that use video analysis are known from the state of the art. People counting devices with acceleration measurements or with a combination of weight sensors and light barriers are also known, for example from EP 2 107 999 B1 or the CN 110371 810 A known.

Es ist Aufgabe der Erfindung, einen verbesserte Personenzähleinrichtung bereit zu stellen.It is an object of the invention to provide an improved people counting device.

Diese Aufgabe wird durch eine Personenzähleinrichtung nach Anspruch 1 gelöst. Vorteilhafte Ausgestaltungen sind in den weiteren abhängigen Ansprüchen angegeben.This object is achieved by a people counting device according to claim 1. Advantageous embodiments are specified in the further dependent claims.

Die erfindungsgemäße Personenzähleinrichtung ist eine Personenzähleinrichtung für einen Aufzug mit einer Aufzugskabine mit einem Eingang zur Bestimmung des Betretens oder Verlassens einer Aufzugskabine durch eine Person, mit einem Anwesenheitssensor am Eingang der Aufzugskabine zur Detektion der Anwesenheit einer Person im Bereich des Eingangs oder des Durchgangs einer Person durch den Eingang und zur Ausgabe eines Detektionssignals bei Anwesenheit oder Durchgang, mit einem Beschleunigungsmesser an der Aufzugskabine, zur Detektion der vertikalen Beschleunigung der Aufzugskabine und zur Ausgabe von positiven und negativen Beschleunigungswerten bezogen auf die Bewegungsrichtung der Aufzugskabine nach oben, und mit einer Auswerteeinrichtung, welche dazu ausgebildet ist, beim Empfang des Detektionssignals für eine bestimmte Zeitdauer eine Reihe von aktuellen Beschleunigungswerten zu empfangen und zu analysieren, ob einer der Beschleunigungswerte oder der daraus folgende Bewegungsverlauf einen oberen Schwellenwert überschreitet oder einen unteren Schwellenwert unterschreitet und ein Signal für das Betreten der Aufzugskabine durch eine Person auszugeben oder zu verarbeiten, wenn der untere Schwellenwert unterschritten wurde und ein Signal für das Verlassen der Aufzugskabine durch eine Person auszugeben oder zu verarbeiten, wenn der obere Schwellenwert überschritten wurde.The people counting device according to the invention is a people counting device for an elevator with an elevator car with an entrance for determining when a person enters or leaves an elevator car, with a presence sensor at the entrance of the elevator car for detecting the presence of a person in the area of the entrance or when a person passes through the entrance and for outputting a detection signal when there is presence or passage, with an accelerometer on the elevator car for detecting the vertical acceleration of the elevator car and for outputting positive and negative acceleration values in relation to the upward direction of movement of the elevator car, and with an evaluation device which is designed to receive a series of current acceleration values for a specific period of time when the detection signal is received and to analyze whether one of the acceleration values or the movement course resulting therefrom exceeds an upper threshold value or falls below a lower threshold value and to output or process a signal for a person entering the elevator car when the lower threshold value has been undershot and to output a signal for a person leaving the elevator car or to process if the upper threshold has been exceeded.

Dies kann den Vorteil ausbilden, dass auf einen vorhandenen Sensor zurückgegriffen werden kann. Dies kann den Vorteil ausbilden, Kosten zu sparen.This can have the advantage of being able to use an existing sensor. This can have the advantage of saving costs.

Betreten bedeutet, dass sich eine Person vom Raum vor der Aufzugskabine durch den Durchgang der geöffneten Aufzugstüre in die Aufzugskabine bewegt. Verlassen bedeutet, dass sich eine Person vom Inneren der Aufzugskabine durch den Durchgang der geöffneten Aufzugstüre in den Raum vor der Aufzugskabine bewegt. Beim Empfang bedeutet am Beginn des Empfangs. Das Detektionssignal ebenso wie die bestimmte Zeitdauer erfolgt stets bei Halt der Aufzugskabine an einer Haltestelle und bei geöffneten Aufzugskabinentüre. Positive Beschleunigungswerte entsprechen einer Beschleunigung der Aufzugskabine nach oben, d.h. in Richtung Schachtkopf. Negative Beschleunigungswerte entsprechen einer Beschleunigung der Aufzugskabine nach unten, d.h. in Richtung Schachtgrube. Vorzugsweise ist der obere Schwellenwert ein positiver Beschleunigungswert. Vorzugsweise ist der untere Schwellenwert ein negativer Beschleunigungswert.Entering means that a person moves from the space in front of the elevator car through the passage of the open elevator door into the elevator car. Exiting means that a person moves from inside the elevator car through the passage of the open elevator door into the space in front of the elevator car. During reception means at the start of reception. The detection signal as well as the specific time period always occurs when the elevator car stops at a stop and when the elevator car door is open. Positive acceleration values correspond to an acceleration of the elevator car upwards, i.e. towards the shaft head. Negative acceleration values correspond to an acceleration of the elevator car downwards, i.e. towards the shaft pit. The upper threshold value is preferably a positive acceleration value. The lower threshold value is preferably a negative acceleration value.

Vorzugsweise ist die Auswerteeinrichtung dazu ausgebildet, die Signale für das Betreten zu einem Wert zu summieren und die Signale für das Verlassen von dem Wert abzuziehen und den Wert für die Anzahl der Personen in der Aufzugskabine auszugeben und insbesondere den Wert nach einer bestimmten Zeitdauer eines Halts ohne Signal auf Null zu setzen.Preferably, the evaluation device is designed to sum the signals for entering to a value and to subtract the signals for leaving from the value and to output the value for the number of persons in the elevator car and in particular to set the value to zero after a certain period of time of a stop without a signal.

Dies kann den Vorteil ausbilden, dass eine umfangreichere Information für die Aufzugskabine vorliegt.This can have the advantage of providing more comprehensive information for the elevator car.

Vorzugsweise liegt die bestimmte Zeitdauer zwischen 0.05 und 1 Sekunde, insbesondere zwischen 0.1 und 0.5 Sekunden, insbesondere zwischen 0.2 und 0.3 Sekunden.Preferably, the specific time period is between 0.05 and 1 second, in particular between 0.1 and 0.5 seconds, in particular between 0.2 and 0.3 seconds.

Dies kann den Vorteil ausbilden, besonders zuverlässig zu sein.This can have the advantage of being particularly reliable.

Vorzugsweise liegt der obere Schwellenwert bei einer Beschleunigung zwischen 0.001 g und 0.003 g oder bei einer Anhebung zwischen 0.01 mm und 0.05 mm, und/oder der untere Schwellenwert bei einer Beschleunigung zwischen -0.001 g und -0.003 g oder bei einer Absenkung zwischen -0.01 mm und -0.05 mm.Preferably, the upper threshold value is for an acceleration between 0.001 g and 0.003 g or for an increase between 0.01 mm and 0.05 mm, and/or the lower threshold value is for an acceleration between -0.001 g and -0.003 g or for a decrease between -0.01 mm and -0.05 mm.

Dies kann den Vorteil ausbilden, besonders zuverlässig zu sein.This can have the advantage of being particularly reliable.

Vorzugsweise ist der Beschleunigungssensor am Anwesenheitssensor befestigt. Vorzugsweise weisen der Anwesenheitssensor und der Beschleunigungssensor den gleichen Träger auf. Vorzugsweise weisen der Anwesenheitssensor und der Beschleunigungssensor das gleiche Gehäuse auf. Vorzugsweise ist die Auswerteeinrichtung im Anwesenheitssensor integriert.Preferably, the acceleration sensor is attached to the presence sensor. Preferably, the presence sensor and the acceleration sensor have the same carrier. Preferably, the presence sensor and the acceleration sensor have the same housing. Preferably, the evaluation device is integrated in the presence sensor.

Dies kann den Vorteil ausbilden, besonders montagefreundlich sein. Dies kann den Vorteil ausbilden, Kosten zu sparen. Dies kann den Vorteil ausbilden, wenig Raum einzunehmen.This can have the advantage of being particularly easy to install. This can have the advantage of saving costs. This can have the advantage of taking up little space.

Vorzugsweise ist der Anwesenheitssensor ein Lichtgitter oder eine Lichtschranke.Preferably, the presence sensor is a light grid or a light barrier.

Dies kann den Vorteil ausbilden, dass auf einen vorhandenen Sensor zurückgegriffen werden kann. Dies kann den Vorteil ausbilden, Kosten zu sparen.This can have the advantage of being able to use an existing sensor. This can have the advantage of saving costs.

Vorzugsweise weist die Auswerteeinrichtung eine Einrichtung zur drahtlosen Funkübertragung auf.Preferably, the evaluation device has a device for wireless radio transmission.

Dies kann den Vorteil ausbilden, dass eine Fernüberwachung möglich ist.This can have the advantage that remote monitoring is possible.

Weitere Merkmale der Erfindung sind in den Zeichnungen angegeben.Further features of the invention are indicated in the drawings.

Die jeweils genannten Vorteile können sich auch für Merkmalskombinationen realisieren in deren Zusammenhang sie nicht genannt sind.The advantages mentioned can also be realized for combinations of features in which they are not mentioned.

Überblick über die Zeichnungen:Overview of the drawings:

Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden näher erläutert. Gleiche Bezugszeichen in den einzelnen Figuren bezeichnen dabei einander entsprechende Elemente. Es zeigen:

Fig. 1
Beschleunigungsdiagramm für das Betreten der Aufzugskabine
Fig. 2
Beschleunigungsdiagramm für das Verlassen der Aufzugskabine
Embodiments of the invention are shown in the drawings and are explained in more detail below. The same reference numerals in the individual figures designate corresponding elements. They show:
Fig. 1
Acceleration diagram for entering the elevator car
Fig. 2
Acceleration diagram for leaving the elevator car

Detaillierte Beschreibung der Zeichnungen:Detailed description of the drawings:

Fig. 1 zeigt ein Beschleunigungsdiagramm 10 für das Betreten der Aufzugskabine durch eine Person. Die X-Achse zeigt den Zeitverlauf 11 und die Y-Achse zeigt die Beschleunigung 12. Ein unterer Schwellenwert 21 für die Beschleunigung zeigt eine negative Beschleunigung, also eine Beschleunigung der Aufzugskabine nach unten. Am Schnittpunkt der Zeitachse 11 mit der Beschleunigungsachse 12 ist der Nullpunkt 22 der Beschleunigung, also keine Beschleunigung der Aufzugskabine. Ein oberer Schwellenwert 23 für die Beschleunigung zeigt eine positive Beschleunigung, also eine Beschleunigung der Aufzugskabine nach oben. Der Signalzeitpunkt ist der Zeitpunkt 0 am Schnittpunkt der Zeitachse 11 mit der Beschleunigungsachse 12. Fig. 1 shows an acceleration diagram 10 for a person entering the elevator car. The X-axis shows the time course 11 and the Y-axis shows the acceleration 12. A lower threshold value 21 for the acceleration shows a negative acceleration, i.e. an acceleration of the elevator car downwards. At the intersection of the time axis 11 with the acceleration axis 12 is the zero point 22 of the acceleration, i.e. no acceleration of the elevator car. An upper threshold value 23 for the acceleration shows a positive acceleration, i.e. an acceleration of the elevator car upwards. The signal time is the time 0 at the intersection of the time axis 11 with the acceleration axis 12.

Eine Lichtschranke ist an den Türen der Aufzugskabine angebracht und überwacht den Eingang der Aufzugskabine. In das Gehäuse der Lichtschranke ist ein Beschleunigungsmesser zur Messung der vertikalen Beschleunigung und eine Auswerteeinrichtung integriert.A light barrier is attached to the doors of the elevator car and monitors the entrance to the elevator car. An accelerometer for measuring the vertical acceleration and an evaluation device are integrated into the housing of the light barrier.

Zum Zeitpunkt 0 unterbricht eine Person die Lichtschranke am Eingang der Aufzugskabine, um die Aufzugskabine zu betreten. Die Lichtschranke sendet ein Detektionssignal an die Auswerteeinrichtung. Die Auswerteeinrichtung empfängt das Detektionssignal. Im Falle eines anhaltenden Detektionssignals ist nur der Beginn des Detektionssignals relevant. Der Beginn des Empfangs des Detektionssignals ist der Zeitpunkt 0. Zum Beginn des Empfangs des Detektionssignals startet die Aufzugssteuerung eine Zeitschaltuhr bis zum Ablauf einer bestimmte Zeitdauer 24. Während der bestimmten Zeitdauer empfängt die Auswerteeinrichtungen Werte vom Beschleunigungsmesser Werte für die Beschleunigung der Aufzugskabine, welche den Verlauf der Beschleunigungskurve 31 zeigen. Die Auswerteeinrichtung analysiert die Beschleunigungswerte und erkennt, dass mindestens ein Beschleunigungswert den unteren Schwellenwert 21 unterschreitet und sendet ein Signal für das Betreten der Aufzugskabine durch eine Person über eine Funkeinrichtung an einen Server.At time 0, a person interrupts the light barrier at the entrance to the elevator car in order to enter the elevator car. The light barrier sends a detection signal to the evaluation device. The evaluation device receives the detection signal. In the case of a persistent detection signal, only the start of the detection signal is relevant. The start of reception of the detection signal is time 0. At the start of reception of the detection signal, the elevator control starts a timer until a certain period of time 24 has elapsed. During the certain period of time, the evaluation device receives values from the accelerometer for the acceleration of the elevator car, which show the course of the acceleration curve 31. The evaluation device analyzes the acceleration values and recognizes that at least one acceleration value falls below the lower threshold value 21 and sends a signal for a person entering the elevator car via a radio device to a server.

Fig. 2 zeigt ein Beschleunigungsdiagramm 10 für das Verlassen der Aufzugskabine durch eine Person gemäss Fig. 1. Fig. 2 shows an acceleration diagram 10 for a person leaving the elevator car according to Fig. 1 .

Zum Zeitpunkt 0 unterbricht eine Person die Lichtschranke am Eingang der Aufzugskabine, um die Aufzugskabine zu verlassen. Die Lichtschranke sendet ein Detektionssignal an die Auswerteeinrichtung. Die Auswerteeinrichtung empfängt das Detektionssignal. Im Falle eines anhaltenden Detektionssignals ist nur der Beginn des Detektionssignals relevant. Der Beginn des Empfangs des Detektionssignals ist der Zeitpunkt 0. Zum Beginn des Empfangs des Detektionssignals startet die Aufzugssteuerung eine Zeitschaltuhr bis zum Ablauf einer bestimmte Zeitdauer 24. Während der bestimmten Zeitdauer empfängt die Auswerteeinrichtungen Werte vom Beschleunigungsmesser Werte für die Beschleunigung der Aufzugskabine, welche den Verlauf der Beschleunigungskurve 32 zeigen. Die Auswerteeinrichtung analysiert die Beschleunigungswerte und erkennt, dass mindestens ein Beschleunigungswert den oberen Schwellenwert 23 überschreitet und sendet ein Signal für das Verlassen der Aufzugskabine durch eine Person über eine Funkeinrichtung an einen Server.At time 0, a person interrupts the light barrier at the entrance to the elevator car in order to leave the elevator car. The light barrier sends a detection signal to the evaluation device. The evaluation device receives the detection signal. In the case of a persistent detection signal, only the beginning of the detection signal is relevant. The beginning of the reception of the The time of detection signal is 0. At the beginning of the reception of the detection signal, the elevator control starts a timer until a certain period of time 24 has elapsed. During the certain period of time, the evaluation device receives values from the accelerometer for the acceleration of the elevator car, which show the course of the acceleration curve 32. The evaluation device analyzes the acceleration values and recognizes that at least one acceleration value exceeds the upper threshold value 23 and sends a signal for a person to leave the elevator car via a radio device to a server.

Bezugszeichenliste:List of reference symbols:

1010
Beschleunigungsdiagrammacceleration diagram
1111
Zeitachsetimeline
1212
Beschleunigungsachseacceleration axis
2121
unterer Schwellenwert der Beschleunigunglower threshold of acceleration
2222
Nullpunkt der Beschleunigungzero point of acceleration
2323
oberer Schwellenwert der Beschleunigungupper threshold of acceleration
2424
Ende der bestimmten Zeitdauerend of the specified period of time
3131
Beschleunigungskurve für ein Betretenacceleration curve for entering
3232
Beschleunigungskurve für ein Verlassenacceleration curve for leaving

Claims (8)

  1. Person-counting device
    - for a lift having a lift car having an entrance,
    - for determining that a person has entered or exited a lift car,
    - having a presence sensor,
    - able to be installed at the entrance of the lift car,
    - for detecting the presence of a person in the region of the entrance or the passage of a person through the entrance and
    - for outputting a detection signal in the event of presence or passage,
    - having an accelerometer,
    - able to be installed on the lift car,
    - for detecting the vertical acceleration of the lift car and
    - for outputting positive and negative acceleration values in relation to the upwards direction of movement of the lift car, and
    - having an evaluation device,
    - characterized in that the evaluation unit is designed,
    - upon reception of the detection signal, to receive a sequence of current acceleration values for a specific duration and
    - to analyse whether one of the acceleration values or the movement profile resulting therefrom exceeds an upper threshold value (23) or falls below a lower threshold value (21) and
    - to output or to process a signal indicating that a person has entered the lift car when the lower threshold value (21) has been fallen below and
    - to output or to process a signal indicating that a person has exited the lift car when the upper threshold value (23) has been exceeded.
  2. Person-counting device according to Claim 1, characterized in that
    - the evaluation device is designed
    - to sum the signals indicating entering to form a value and
    - to subtract the signals indicating exiting from the value and
    - to output the value for the number of people in the lift car
    - and in particular to set the value to zero following a specific duration of stopping without a signal.
  3. Person-counting device according to either of the preceding claims,
    characterized in that
    - the specified duration is between 0.05 and 1 second, in particular between 0.1 and 0.5 seconds, in particular between 0.2 and 0.3 seconds.
  4. Person-counting device according to one of the preceding claims,
    characterized in that
    - the upper threshold value (23) is between 0.001 g and 0.003 g in the case of an acceleration or between 0.01 mm and 0.05 mm in the case of a rise,
    - and/or the lower threshold value (21) is between -0.001 g and -0.003 g in the case of an acceleration or between -0.01 mm and -0.05 mm in the case of a drop.
  5. Person-counting device according to one of the preceding claims,
    characterized in that
    - the acceleration sensor is attached to the presence sensor and
    - the presence sensor and the acceleration sensor in particular have the same carrier and in particular have the same housing
    - and the evaluation device is in particular integrated in the presence sensor.
  6. Person-counting device according to one of the preceding claims,
    characterized in that
    - the presence sensor is a light grid or a light barrier.
  7. Person-counting device according to one of the preceding claims,
    characterized in that
    - the evaluation device has a wireless radio transmission device.
  8. Lift,
    - having a lift car
    - having an entrance,
    characterized in that
    - the lift has a person-counting device and an accelerometer according to one of the preceding claims,
    - wherein the person-counting device is installed at the entrance of the lift car and
    - wherein the accelerometer is installed on the lift car.
EP22193739.4A 2022-09-02 2022-09-02 Person counting device for a lift Active EP4332038B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP22193739.4A EP4332038B1 (en) 2022-09-02 2022-09-02 Person counting device for a lift
US18/453,542 US20240076161A1 (en) 2022-09-02 2023-08-22 People counting device for an elevator
CN202311127296.9A CN117645216A (en) 2022-09-02 2023-09-01 People counting device for elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22193739.4A EP4332038B1 (en) 2022-09-02 2022-09-02 Person counting device for a lift

Publications (3)

Publication Number Publication Date
EP4332038A1 EP4332038A1 (en) 2024-03-06
EP4332038B1 true EP4332038B1 (en) 2024-11-20
EP4332038C0 EP4332038C0 (en) 2024-11-20

Family

ID=83192054

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22193739.4A Active EP4332038B1 (en) 2022-09-02 2022-09-02 Person counting device for a lift

Country Status (3)

Country Link
US (1) US20240076161A1 (en)
EP (1) EP4332038B1 (en)
CN (1) CN117645216A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI118639B (en) * 2006-12-08 2008-01-31 Kone Corp Method for detecting arrival or departure of lift passengers in or from lift car, involves acquiring vertical acceleration values of lift car received from acceleration sensor and using such values to perform detection
CN110371810B (en) * 2019-07-18 2021-10-01 迅达（中国）电梯有限公司 Elevator car utilization ratio real-time calculation system

Also Published As

Publication number Publication date
CN117645216A (en) 2024-03-05
US20240076161A1 (en) 2024-03-07
EP4332038A1 (en) 2024-03-06
EP4332038C0 (en) 2024-11-20

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