JPS6071480A - Detector for passenger getting on and off in elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an improvement in an elevator passenger detection device for detecting passengers getting on and off an elevator car.

[Prior art]

Conventionally, elevators have been arranged so that a hall call is registered using an up button and a down button provided at the hall, and a car is called according to the busy hall call.

Passengers who have boarded the arriving car register a car call using the destination button installed inside the car and drive the car to the desired floor.

However, depending on the use of each floor of a building and the related busyness between floors depending on the use, there are cases in which the registration of car calls can be predicted in advance.

For example, in an office building, etc., during lunch time, the up button (or down button) on the floor used as an office is pressed to register a landing call, and when the car answers, Or the case where the car call on the floor where the cafeteria is located (downstairs) is almost always registered.

In such a case, if a car responds to the 5th landing call, the car call for that specific floor is automatically registered, which is convenient because passengers on that floor do not have to operate the destination button in the car. .

Recently, as described in Japanese Patent Application Laid-open No. 55-80659, the same destination buttons as in the car are also provided on the floor landing buttons, and when the destination button above the floor is operated, the destination button on the floor above is operated. Register the floor up call.

When you operate a destination button below the above floor, a down call for the above floor is registered, and when a car arrives, it automatically registers a car call for the floor corresponding to the destination button above. .

Therefore, similarly to the above case, the passenger can save the effort of operating the destination button inside the car.

However, even if a hall call is registered on a floor with an up or down button that can automatically register a car call on a specific floor or a floor with a destination button, passengers may not always board the car. .

For example, if the car that answered the 1st landing call button is crowded,
Passengers waiting at the platform may board another car or wait for another car to arrive because they don't want to be crowded. It is also possible that there are no passengers at the platform anymore, such as when you press the platform button but your car arrives late and you have to take the stairs.

In this case, the automatically registered car calls become wasteful calls, resulting in a problem that the elevator operation efficiency, such as waiting time for passengers on other floors, is reduced.

In order to overcome these drawbacks, a method has been proposed in which the car call is automatically registered only when it is detected that a duck passenger has boarded the car.

According to this method, car calls are not automatically registered when there are no passengers boarding the car, so it is possible to prevent unnecessary registration of car calls.

Conventionally, there has been no means for detecting that a passenger has boarded the car.

(As described in Japanese Unexamined Patent Publication No. 137287/1987, there is a device such as an ultrasonic switch that detects objects on the landing side of an elevator, and a light beam that crosses the doorway of the car. By combining a photoelectric device with a light-emitting part and a light-receiving part to detect an object crossing the car door, and taking into account the type of stop call (car call stop and/or hall call stop). Means for detecting the direction of passenger entry and exit; (a) Means for detecting the direction of passenger entry and exit using the two light beams of the photoelectric device described in (7) above and based on the order in which the light beams are interrupted.

(1) Measures are being considered to detect increases and decreases in the car load using a scale device installed on the floor of the car to detect the load inside the car, and to detect the direction in which passengers are entering and exiting.

However, in the case of (7) above, there is a problem in that the cost increases because the detection devices must be provided at two locations: the landing and the car.

In addition, in the case of [P] above, if the order in which the light beams are cut off is sufficient to effectively detect the direction of passenger entry and exit, the photoelectric device installed inside the car door can be There are problems that space is limited and costs are high.

Furthermore, the above (in the case of rough), the output of the normal line equipment expresses the mold load as a percentage of the rated load, and, for example, 0
%, 10%, 20%...etc.
Since the signal changes in steps, it may not be possible to detect it when each passenger comes and goes.

In addition, the output of the weighing device does not change until the passenger gets off or gets on the fully K car (it is not possible to detect temperature or direction of entry or exit), so when automatically registering the car call mentioned above, When a busy passenger takes even one step into the car.

It is inappropriate to apply this method to a case where a car call has already been registered and rapid detection of the direction of entry and exit is required.

[Summary of the invention]

This invention was made in order to solve the above-mentioned conventional drawbacks, and is based on the non-detection time when an object crossing the car door is not detected, the object crossing the car door depending on the open/closed state of the car door, and the type of stop call. Make sure to identify whether you are a passenger getting on or getting off the train.”
(This paper proposes an elevator passenger detection device that can quickly detect the direction of entry and exit of busy passengers using simple means.)

[Embodiments of the invention]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the elevator passenger detection device of the present invention will be described below with reference to FIGS. 1 to 7.

FIG. 1 shows the landing on the third floor, in which 1 is the elevator car, 2 is the elevator door, 3 and the object detection device 30, which is installed near the entrance and exit of the heel 1, and emits a light beam 3b; 3c is a light ray 3b emitted from the light emitting part 3a as well.
The light-receiving unit 4 of the object detection device 3 is provided with a landing area on the third floor, and there is an up button for registering an up call and a down call.
The hall operation panel 5 is equipped with a down button, and 5 is a car position indicator that guides and displays the position and running direction of the car by lighting pressure of lamps.

FIG. 2 shows the overall configuration of the elevator passenger detection device according to the present invention. In FIG.
When the K-light mab is not received, it is assumed that an object has been detected.
6 is the object detection device 3.
This is a non-detection time detection device that measures the duration of time during which the object is not detected and outputs it to the determination device 9 as non-detection time signals 6a and 6b.

In addition, 7 indicates that when the car responds to the call button and stops, the car responds to the car call stop detection signal 7a that becomes HJ and the car responds to the landing call (up call, down call) from when the car is determined to stop until just before departure. When stopped, the hall call stop detection signal 7b becomes "II" from the time the stop is determined until just before departure.
This is a well-known stop call detection device that outputs each to the determination device 9.

8 is a door open/close state signal 8a which becomes "II" when the car door is closed and becomes rLJ only from when the door starts opening until it starts closing, and a door switch which becomes "H" when the car door is completely closed. This is a well-known door opening/closing operation detection device that outputs a signal 8b to a determination device 9, respectively.

The determination device 9 determines the direction of entry and exit of the passenger, and when it detects that the passenger is boarding the car IK, the boarding/alighting passenger detection device 9a displays ")■" and detects that the passenger is getting off the car IK. Then, the alighting passenger detection signal 9b which becomes [HJ] is output.

Furthermore, 10m and 10b are each non-detection time 6a
A reference value signal representing a reference value (in seconds) for determining 1 and 6b can be set to an arbitrary value by a switch or the like from outside the 1 determining device 9.

FIG. 3 shows a detailed circuit diagram of the non-detection time detection device 6 and determination device 9 shown in FIG.
Unless a signal of L.J.
K Reset.

21a-24a are output signals of the memories 21-24, respectively.

25 is a pulse generator that outputs a short "HJ" pulse signal 25a to the P point pressure of the memory 21 when the input signal at one point changes from rHJ to [, J.

26 and 27 are timers that output zero while the rLJ signal is input to one point, and count and output the duration when the "H" signal is input; The above-mentioned non-detection time signal 6a is outputted from the output terminal of the timer 27 to the comparator 29, and the non-detection time signal 6b is outputted from the output terminal of the timer 27 to the comparator 2B.

The output signal 3d of the object detection device 3 is input to the X point, and this output signal 3d is sent to the determination device 9.
It is designed to be input to AND gates 32 to 36 inside.

Further, the door opening/closing state signal 8a output from the door opening/closing operation detection device 8 is at the R point of notes I721 to 24, and the AND gate 3
K is attached so that it is input as 0.

AND) 31 contains the output signal 3d of the object detection device 3.
and the output signal 21a of the memory 21 are inputted, and the output signal 31m of the AND gate 31 is busy being inputted to the timer 2'lC.

Also, the door opening/closing status signal 8a output from the single door opening/closing operation detection device 8 is memo I) R points of 21 to 24, AND Go)
30JC is input and it becomes 5.

The AND gate 31 receives the output signal 3d of the object detection device 3.
and the output signal 21a of the memory 21 are input, and the output signal 31a of the AND game 31 is input to the timer 27.

Also, AND) 30 is the output signal 21a of the memory 21.
, door open/close state signal 8a, output signal 3a of object detection device 3
Then, press the timer 26 to output the output signal 30m.

The above-mentioned non-detection time signals 6b*6m are input to the X points of the comparators 28 and 29, respectively, and the reference value signals 10b and 1Oa are input to the Y points of the comparators 28 and 29, respectively.
When (input signal at point X) ≧ (input signal at point Y), the output signals at two points are output by
When the input signal at point Y), the output signal rLJ at two points is outputted to eight points in the memories 23 and 22, respectively.

AND gate 32 receives output signal 23a of memory 23.

Output signal 3d of object detection device 3, stop detection signal '7a
The output is sent to an OR gate 37.

Furthermore, the AND gate 33 outputs the output signal 22a of the memory 22.
, the output signal 3d, and the stop detection signal 7a are ANDed and the output is output to the OR gate 37.

AND gate 34 has stop detection signal 7m, stop detection signal 7
b, the door open/close state signal 8m and the output signal 3d are ANDed and an OR game) 3'lC is output.

Additionally, AND gate 36 connects output signal 24 of memory 24 to
a, the output signal 23m of the memory 23, the output signal 22a of the memory 22, and the output signal 3d are ANDed and the alighting passenger detection signal No. 48 9b is output.

The OR gate 37 performs the OR operation of the AND gates 32 to 35 and outputs a C1 passenger detection signal 9a.

Note that the door switch signal 8b is output from the door opening/closing operation detection device 8 to the R point of the memory 24.

FIGS. 4 to 7 are diagrams showing the states of each signal.

In the diagram, a person can define the time when door 2 of F Beta starts opening as B.
, B' similarly represents the time point when the door starts closing, and C similarly represents the time point when the door closing is completed. Do, D, -D.

represents the point in time when the object detection device 3 detects an object (passenger).

Further, the period indicated by El indicates the detectable period of passengers getting off the train, and the period indicated by E indicates the detectable period of passengers getting on the train.

To or T/ represents the non-detection time signal 6a immediately after the start of opening the door, and T, to T3 represent the heat detection time 4B 6b of the concave ridge when the first object is detected after the start of opening the door. Ta and T
b is the reference value signal 10a.

10b.

Next, the operation of the elevator passenger detection device of the present invention configured as described above will be explained.

Suppose that the car responds to the call and arrives at the third floor.

Before the door is opened, the door open/close state signal 8a and the door switch signal 8b are both K[HJ, so the memories 21 to 2
The contents of 4 are all reset to "I,".

First, the operation of the non-detection time detection device 6 will be explained.

Before the door is opened, the one-door open/close state signal 8a and the door switch signal 8b are both "H", so the contents of the memory 21 have been reset to rLJ. Therefore, since the outputs of AND gates 30 and 31 are "L", timer 2
Non-detection time signals 6a and 6b, which are output signals of 6 and 27, are both output as zero (seconds).

Now, when the car door 2 opens, the door open/close state signal 8a and the door switch signal 8b both become rLJ, so the AN
The output signal 30 as shown in FIG.
a becomes 11 J, the timer 26 counts the non-detection time immediately after the door opens, and this is the non-detection time signal 6a.
is output as

Next, the light beam 3b is blocked by an alighting passenger or a passenger trap, and the output signal 3d of the object detection device 3 becomes rLJ via the AND game) 30, so that the output signal 30a becomes rLJ. The detection time signal 6a becomes zero (seconds) again.

Therefore, when the output signal 3d of the object detection device 3 becomes stale and becomes "L", the pulse signal 25a is emitted by the pulse generator 25 as shown in FIG. ”, and the output signal 21 of the memory 21
As shown in FIG. 4, m becomes "II" until the car starts closing its door and the door opening/closing state signal 8a becomes [J.

Therefore, once the door of the car starts closing, the contents of the memory 21 are reset to 1-LJ, and the output signal of the AND gate 30 remains rLJ until the door is opened again, so there is no detection time. The signal 6a also remains at zero (seconds).

On the other hand, when the object detection signal 3d changes from "I(" to "L"), the output signal 31 of the AND gate 31 as shown in FIG.
a becomes rHJ, and the timer 27 determines the non-detection time after object detection. I (and this is output as the non-detection time signal 6b. This non-detection time signal 6b becomes the object detection signal 3d rnJK (D+ - in FIG. 4).
Dt) and the output signal 31^ of the AND gate 31 are “LJ
Therefore, it is reset to zero (seconds) each time.Finally, when the car starts closing its door and the door opening/closing status signal 8a becomes J II J, the contents of the memory 21 become 'LJ K
After being reset, the °C output signal 21a becomes r”LJ, and AN
The output signal 31a of the D gate 31 is also reset to rLJ, and the non-detection time signal 6b is reset to zero (seconds).

In this way, the non-detection time detection device 6.

The non-detection time signal 6a immediately after the door opens and the non-detection time signal 6b after the object is detected are counted.

Next, the operation of the first determination device WL9 will be explained. First, 3
Let us consider a case where only the call 9 for going up the floor is answered and the car arrives at the third floor.

When the door of the car starts to open, the door open/close state signal 8a becomes rLJ. The hall call stop detection signal 7b is ritJ.

Since the car call stop detection signal 7a is rLJ, the waiting passengers at the landing on the third floor board the car after the door has been opened.

When the output signal 3d of the object detection device 3 becomes [iJ.

The output signal of the AND gate 34 becomes 1) IJ, and the passenger detection signal 9m becomes "H" via the OR gate 37.

In this way, when a passenger responds to only one hall call and the light beam 3b is blocked by a passenger, the passenger is immediately determined to be a passenger.

Next, consider the case where the car responds to a car call on the third floor and the car arrives at the third floor. If there are no passengers passing through the doorway even after a certain period of time (for example, 1 second) has passed since the door has been opened, there is a high possibility that the car call is a wasteful call (or a prank call).

Therefore, the time required from the start of opening to the completion of opening is 2.
seconds, the reference value signal 10m is 3.5 seconds (Ta=3.s)
If set to , the non-detection time signal 6 immediately after the door starts opening
When a exceeds 3.5 seconds, the output of comparator 29 becomes 1-H.
Therefore, the contents of the memory 22 are set to ``I'', and the output signal 22a becomes ``H'' as shown in FIG.

Therefore, since the car call stop detection signal 7a is rHJ, if a passenger who came late to the landing button on the third floor gets on the car busy and blocks the light beam 3b, the output signal 3 of the object detection device 3
d becomes "H"('Do, DI, Dt in Figure 5)
), the output signal of the AND gate 33 becomes “H” and O
The passenger detection signal 9a becomes "HJ" through the R gate 37.Then, the car starts closing the door and the door opening/closing status signal 8a is output.
When becomes l'-II J, the memory 22 is reset to rLJ.

In this way, when the car is stopped by a button or a car call, if the non-detection time immediately after the door starts to open exceeds a certain period of time, the car call is considered to be a wasteful call, and the car is immediately determined to be a passenger when the first object is detected. It is no longer possible to erroneously determine a passenger to be an alighting passenger.

Next, as shown in Figure 6, I responded to the call from the third floor.
Consider a case where the non-detection time signal 6a immediately after the door opens when the vehicle stops, that is, Ta, is shorter than the reference value signal 10a, that is, Ta.

At this time, the output signals 22a to 24m of the memories 22 to 24
Since both are rLJ, when the output signal 3d of the object detection device 3 becomes "H" (as shown in FIG. 6), the alighting passenger detection signal 9b becomes rHJ via the AND gate 36. Usually when there are passengers getting off the train.

Passengers waiting at the boarding station board the vehicle after they have finished getting off the vehicle, but it is known that there is a so-called boarding delay time between when they complete their disembarkation and when they start boarding.

The reference value signal 10b (Tb in FIG. 6) corresponds to the boarding delay time, and if this is set to 0.8 seconds, the non-detection time signal 6b after object detection corresponds to the reference value signal 10b. Since the output of the comparator 28 will not become "II" until r
It remains LJ.

Therefore, while the output signal 23a of the memory 23 is rLJ, every time the output signal 3d of gIL3 becomes r)IJK after detecting an object, the alighting passenger detection signal 9b is sent via the AND gate 36.
becomes “1■”.

After getting off the vehicle, as shown in Fig. 6, the non-detection time signal sb (TI in Fig. 6) after object detection becomes the reference value signal xob.
(Tb in FIG. 6), the output of the comparator 28 becomes "I".
( ), the contents of the memory 23 are set to l'-IIJ, and the output signal 23a of the memory 23 becomes "II".

Therefore, from now on, the output signal 3d of R3 after object detection is "
II”, the output of the AND gate 36 is always rL.
J, and the alighting passenger detection signal 9b never becomes "Il".

On the other hand, the output signal 23a of the memory 23 is "II" during the period (
Corresponding to E in Fig. 6)K Output signal 3d of object detection device 3
becomes lnJ (DI, Dt in FIG. 6), the output of the KAND gate 32 becomes 1-IIJ, and the OR
The passenger detection signal 9a becomes "IIJ" through the gate 37.Then, the car starts closing the door and the door opening/closing state signal 8a is output.
When becomes "■", the memory 23 is reset to rLJ.

If there are passengers boarding the 1st platform button when the car stops due to a busy car call, it detects that the passenger is delayed in boarding.

Since it is determined whether passengers are getting on or off the train, it is possible to easily distinguish between passengers getting off the train and passengers getting on the train.

Next, consider the case where the car starts closing its door in order to leave the third floor. At this time, the door open/close state signal 8a is [H
J, since the door switch signal 8b is "L", the contents of the memory 24 are set to "II", and its output signal 2
As shown in FIG. 7, 4a sounds "IN" at time B when the door starts closing.

Well, there's a delay. (Passengers who entered the platform on the 3rd floor pressed platform button 4.
or if a passenger in the car looks at the passenger above,
Operate the door opening button (not shown) inside the car to open door 2 of the car.
Suppose that the door is reopened.

After the door is reopened, the passenger 3b is obstructed and the output signal 3d of the object detection device 3 becomes l-HJ (DI in Fig. 7), the output of the AND gate 35 becomes "ii J". Therefore, the passenger detection signal 9a becomes [J] via the OR gate 37.Then, the car door closes again, and when the door closing is completed, the door switch signal 8b becomes "II", so the memory 24 reads " LJ busy sled set.

In this way, if a car that has finished its service and once started closing its door opens again before the door is completely closed, even if the non-detection time TJ immediately after the door is opened is smaller than the reference value Ta, the car will be automatically closed when the first object is detected. Since the determination as a passenger is set to 5, a passenger will not be mistakenly determined as an alighting passenger even when the car call is stopped.

In the above embodiment, the non-detection time immediately after the door opens and the non-detection time after the object is detected are used as the non-detection time, but this is the non-detection time for determining the direction of passenger entry and exit. It is not limited to.

For example, instead of the non-detection time immediately after the door opens, the non-detection time after nine doors have been opened may be used (at this time, the reference value Ta can be set to a value converted to the time from the door completion). good).

In addition, if the reference values Ta and Tb for determining the non-detection time are set in detail for each floor and service direction according to the characteristics of the floor, the congestion situation in the car, the congestion situation in the landing area, etc., it will be possible to This makes it possible to more accurately determine passengers and passengers getting off the train.

Furthermore, output from a weighing device installed on the car floor or other passenger detection devices can be used as an auxiliary aid.

Needless to say, it is possible to more accurately determine which passengers are boarding the train and which passengers are getting off the train.

Further, in the above embodiment, a photoelectric device is used as the object detection device 3, but the object detection device is not limited to this. For example, an object detection device using ultrasonic waves or a device that performs object detection by processing images captured by an industrial TV camera may be used.

〔Effect of the invention〕

As explained above, according to the elevator passenger detection device of the present invention, the device is provided near the door of the elevator car,
An elevator button equipped with an object detection means for detecting an object crossing the car door is pressed to detect the direction of entry and exit of passengers according to the opening/closing operation of the car door and the detection of the object, which is an inexpensive method. It becomes possible to quickly distinguish between passengers.

In addition, the system detects the direction of passenger entry and exit based on the opening/closing operation of the car door, the type of stop call, and the object detection status, so even when the car call button is answered, passengers can be quickly boarded and alighted at low cost. It becomes possible to differentiate.

[Brief explanation of the drawing]

FIG. 1 is a front view of a third-floor landing to which the elevator passenger detection device of the present invention is applied, FIG. 2 is a block diagram showing the configuration of an embodiment of the elevator passenger detection device as described above, and FIG. 1 is a block diagram showing the detailed configuration of the non-detection time detection device and determination device in the passenger detection device of the above elevator, and FIGS. 4 to 7 are diagrams of each part for explaining the operation of the passenger detection device of the above elevator. It is a figure which shows a signal. l... Elevator car, 2... Elevator door, 3... Object detection device, 4...
- Hall operation panel, 5... Car position indicator, 6...
... No-detection time detection device, 7... Stop call detection device, 8... Door opening/closing operation detection device, 9...
...Judgment device. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Masuo Oiwa (and 2 others) Fang 1 Intestine 4 (ζ Green procedure amendment (voluntary) 1, IIG l'l- indication Patent application 1986-177
517 No. 2, Title of the invention Elevator boarding/alighting passenger detection device: 3.1 City 11°I1-・J Ru, 11°If I"l
Relationship with 1. l, ii Applicant [i Place Heavy Industries; Rantocho/rtS111-ku Marunouchi-i1'l+2 Total 3shiJ (
, '1, ((i(11) ', Ryodenki Co., Ltd. 11 Representative Name Katayama 1-He Department 4, Agent [1-Location Bundle 5+% Miyakochiyo IJ, 1 Ward Marunouchi-1"I'
l-12 sound No. 3 5, subject of amendment (1) Detailed explanation column of the invention in the specification (2) Drawing 6, content of amendment (1) Page 9, line 14 of the specification “8 is Yogo no The phrase ``door'' is corrected to ``8 is a basket door.'' (2) On page 9, line 15, "start closing" should be amended to "start closing the door." (3) In the second line of page 11, "Point P" is corrected to "Point R." (4) On page 11, line 10, the phrase "at the one point above" is corrected to "at the one point of the pulse generator 6." (5) Page 11, line 14 to additional line [-1,...
...It's starting to be done manually. ” will be deleted. (6) Page 12, lines 8 to 10 “Output signal 21a
. ``Door open/close state signal 8m - output signal 3a of object detection device @3'' is replaced with ``output signal 21 m inverted signal.Inverted signal of door open/closed state signal 8II, inverted signal of output signal 3a of object detection device 3''. ” he corrected. (7) Page 13, line 8 to line 14 [Stop detection signal 7
a-...Output signals 22a and J are corrected as follows. Note: The inverted signal of the stop detection signal 7a, the inverted signal of the stop detection signal 7b, the door open/close status signal 8&, and the output signal 3d are ANDed and output to the OR gate 37. is configured to AND the output signal 241L of the memory memory and the output signal 3d and output it to the OR gate 37. Furthermore, the +AND gate 36 outputs the output signal 2 of the memory 24.
4 &, an inverted signal of the output signal 23a of the memory n, an inverted signal of the output signal 22M of the memory n, and the inverted signal of the output signal 22M of the memory n. 7. Attached documents (1) One amended drawing

Claims (5)

[Claims] (1) Object detection means provided near the elevator car door to detect an object crossing the car door, and door opening/closing operation detection means to detect the opening/closing operation of the car door. A device for detecting passengers getting on and off an elevator, comprising determining means for determining the direction of entry and exit of a passenger according to the outputs of the object detecting means and the door opening/closing operation detecting means. (2) The determining means determines that a passenger is in the car when an object is detected from the pressure of the object detection means when the car door is closed or the pressure between the time when the door is closed and when the door is opened again. An elevator passenger detection device according to claim 1, characterized in that: (3) Object detection means provided near the elevator car door to detect an object crossing the car door, and door opening/closing operation detection means for detecting the opening/closing operation of the car door. stop call detection means for detecting the type of car stop call; non-detection time detection means for measuring the time R1 during which no object is detected by the object detection means; the object detection means; the door opening/closing operation detection means; What is claimed is: 1. A device for detecting passengers entering and exiting an elevator, comprising determining means for determining the direction of entry and exit of passengers according to the respective outputs of the call detecting means and the non-detection time detecting means. (4) If the determination means stops at least in response to a car call, and the non-detection time from when one door is opened until the first object is detected exceeds the first reference value, the determination means is busy detecting objects from then on. 4. The elevator passenger detection device according to claim 3, wherein the device determines that a passenger is boarding the car. (5) The determination means responds to at least a car call and opens the door when the car stops. After detecting an object for the first time, every time an object is detected until the non-detection time exceeds the second reference value. A patent claim characterized in that when it is determined that a passenger has alighted from the car and the non-detection time exceeds a second reference value, it is determined that the button passenger is boarding the car every time an object is detected thereafter. The elevator passenger detection device according to item 3.