JPH05162958A - Controller for elevator - Google Patents

Abstract

PURPOSE:To obtain a controller for an elevator which can improve the safety of passengers so that the elevator does not travel in the state where the passenger in the vicinity of a door has clothes or luggage in nipped state, without feteriorating the operation efficiency of the elevator. CONSTITUTION:A controller for an elevator is constituted of a detection circuit CPU 2a' which detects the state where the elevator is nearly full of passengers on the basis of the output of a loading quantity detecting device 19 for detecting the loading quantity of a cage and an elevator control circuit 1A which changes the position of a door which starts the elevator to the vicinity of the perfect closure position of the door when the number of passengers is nearly full.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator control device, and particularly when the passengers of the elevator are almost full.
The present invention relates to an elevator control device capable of improving safety for passengers by preventing passengers near a door from traveling with their clothes, belongings, and the like sandwiched between doors.

[0002]

2. Description of the Related Art FIG. 8 is a block diagram showing a conventional elevator control device. In FIG. 8, reference numeral 1 is an elevator control circuit, 2 is a door control circuit interconnected to the elevator control circuit 1, 3 is an inverter circuit controlled by the elevator control circuit 1, and 4 is an inverter circuit 3 driven by an inverter circuit 3. An elevator motor 5 is connected to the shaft of the elevator motor 4, and an encoder for an elevator motor that generates a pulse signal in synchronization with the rotation of the elevator motor 6 is a brake drum that applies a braking force to the elevator motor 4, and 7 is a brake drum. A brake including a brake shoe and a brake coil which are connected to 6 and give a frictional force to the brake shoe.

Reference numeral 8 is an inverter circuit controlled by the elevator control circuit 2, 9 is a door motor driven by the inverter circuit 8, and 10 is a shaft of the door motor 9.
An encoder for a door motor that generates a pulse signal in synchronization with the rotation, 11 is provided at a hall (not shown) on each floor, and a hall door closing switch that detects that the hall door is closed, 12 is a car (not shown) ), Which detects the door position where the elevator starts to operate, a car door close switch, 1
Reference numeral 3 denotes a door fully closed position detection switch which is provided on the fully closed side of the car door close switch 12 of the car and detects the fully closed position of the door.

The elevator control circuit 1 includes a CPU 1a for processing input signals, and a CPU via a bus 1i.
1a connected to the CPU 1a via a ROM 1b storing a program based on the flowchart of FIG. 10 to be described later and a bus 1i, and a RAM 1c capable of writing and reading the calculation processing result and a CPU via the bus 1i
1a, a motor drive circuit 1d that supplies a drive signal to the inverter circuit 3 based on the command signal, and a pulse counter 1e that is connected to the CPU 1a via a bus 1i and counts pulse signals from the encoder 5. .. In addition, the elevator circuit 1 is connected to the CP via the bus 1i.
A brake drive circuit 1f connected to U1a and supplying a drive signal to the brake 7 based on the command signal, and connected to the CPU 1a via a bus 1i, and transmits a control signal to the control circuit 2 of the door, or Communication port 1g for receiving more control signals, CP via bus 1i
It has an entry / exit port 1h which is connected to the U1a and receives signals from the hall door closing switch 11 and the car door closing switch 12 and exchanges various signals with the door control circuit 2.

Further, the door control circuit 2 is provided with a CPU 2a for performing arithmetic processing of an input signal and a CPU 2 via a bus 2i.
A RAM 2c connected to the CPU 2a via a bus 2i and a ROM 2b which stores a program based on the flowchart of FIG.
Connected to the CPU 2a via an input port 2d and a bus 2i for receiving signals from the car door close switch 12 and the door fully closed detection position switch 13, and a drive signal to the inverter circuit 8 based on the command signal. It has a motor drive circuit 2e for supply. Further, the door control circuit 2 is connected to the CPU 2a via the bus 2i, and the encoder 10
A pulse counter 2f that counts pulse signals from
It is connected to the CPU 2a via the bus 2i and transmits a control signal to the communication port 1g of the control circuit 1 of the elevator,
Alternatively, it has a communication port 2g for receiving a control signal therefrom, and an input / output port 2h which is connected to the CPU 2a via a bus 2i and exchanges various signals with an input / output port 1h of the elevator control circuit 1.

Reference numeral 14 is a door closing command signal supplied from the CPU 1a to the entry / exit port 2h of the door control circuit 2 via the entry / exit port 1h, and 15 is an entry / exit port 2h of the door control circuit 2 from the CPU 1a via the entry / exit port 1h. Is a door opening command signal supplied to the. 16 is an input / output port 2 from the CPU 2a
brake opening door position signal supplied to the entry / exit port 1h of the elevator control circuit 1 via h, 17 a control signal serially transmitted from the communication port 2g to the communication port 1g, and 18 a communication port 2g from the communication port 1g Is a control signal transmitted serially to the.

Next, the operation of the conventional elevator controller shown in FIG. 8 will be described with reference to FIGS. 9 to 11. First, a brake open door position signal generation processing routine in the door control circuit 2 will be described with reference to FIG. When the door closing command signal 14 is supplied to the door control circuit 2 from the CPU 1a of the elevator control circuit 1 via the entry / exit port 1h, the CPU 2a controls the motor drive circuit 2e and the door motor 9 via the inverter circuit 8. Is driven to close the door as shown in FIG. At this time, a pulse signal synchronized with the rotation of the door motor 9 is supplied from the encoder 10 to the pulse counter 2f and counted, and the count value PCV is stored in the RAM 2c.

The CPU 2a executes RA in step S1.
The count value PCV is read from M2c, and step S2
, It is judged whether the value is larger than a predetermined value,
If it is larger, the brake opening door position signal 1 as shown in FIG.
6 is output to the input / output port 1h. When the CPU 1a receives this signal from the input / output port 1h, it drives the brake 7 via the brake drive circuit 1f, releases the brake, and drives the inverter circuit 3 via the motor drive circuit 1d. A torque is generated to hold the elevator motor 4 so that it will not move due to the imbalance of the weight. On the other hand, if the count value PCV is smaller than the predetermined value in step S2, the process directly returns. That is, the braked state is maintained.

Next, with reference to FIG. 10, an elevator start condition determination and door opening / closing signal switching determination processing routine in the elevator control circuit 1 will be described. CPU1a is
In step S4, a signal regarding opening / closing of the hall door closing switch 11 and the car door closing switch 12 is read from the entrance / exit port 1h, and in step S5, the hall door closing switch 1
It is determined whether 1 is on, that is, the hall door is closed. In this case, since the hall door closing switch 11 has not been turned on, that is, the hall door is not closed, it is determined in step S6 whether the door closing command signal 14 has risen. In this case, door closing command signal 1
4 has not started up yet, so in step S7, for example, the timer reference value T is set in the door closing timer using the RAM 1c.
Set the T as _L, between the door closing, it is determined whether or exceeds the timer reference value T _L in step S8. In this case, since the door closing time has not exceeded the timer reference value T _L yet, the process returns to step S4.

In the next cycle, after passing through step S4, the hall door closing switch 11 is not turned on in step S5, and the door closing command signal 14 has risen in step S6. Therefore, the door closing time is measured in step S9. In order to start the door close timer. Then, the CPU 1a determines in step S8 whether or not the door closing time exceeds the timer reference value T _L , and if not, the door is considered to be closing and the process returns to step S4. In order to open the door once in order to remove something trapped in the door or any obstacle in the groove of the threshold, the door closing command signal 14
To the door open command signal 15 and the process returns to step S4.

In the next cycle, the CPU 1a goes through step S4 and then, in step S5, if the landing door close switch 11 on the floor where the car is located is ON, that is, if the landing door is closed, the car is opened in step S11. It is determined whether the door close switch 12 is on, that is, whether the car door is closed. If the door close switch 12 is not on, that is, if the car door is not closed, the CPU 1a proceeds to step S6 and repeats the above-described operation. If it is on, that is, if the car door is closed, step In S12, the motor drive circuit 1 outputs an elevator start start signal as shown in FIG.
The motor drive circuit 1d starts the elevator motor 4 via the inverter circuit 3 as shown in FIG. 11 (a). After that, when the door further closes and reaches a position close to the fully closed position (a few millimeters before the fully closed position), the door fully closed position detection switch 13 is turned on, and
A door fully closed position detection signal as shown in (d) is input to the input port 2d. Then, the CPU 2a causes the door motor 9 to pass through the motor drive circuit 2e and the inverter circuit 8.
Is controlled so that the motor torque is limited to a small value, and the door is pressed so that the door does not open even if the passenger mischieves.

[0012]

Since the conventional elevator control device is constructed as described above, it has the following problems. That is, the door of the elevator is closed and the elevator starts to be activated after the door is closed ten or more millimeters before the fully closed position where the door is completely closed as described above, and the position of the door is detected. Therefore, when the passengers are almost full, the passengers near the door can easily travel with the belongings such as clothes, umbrellas and bags sandwiched between the doors. In such cases, passengers try to pick up the trapped objects while the elevator is running,
Trying to pry the door open. Then, if the car door is pry open by the time the car door close switch 12 is turned off, the CPU 1a will open the car door, determine that it is dangerous, and stop the elevator urgently. Therefore, in such a building with many defects, the car door close switch 12 is moved to the fully closed side as much as possible, or the car door close switch 1 is used.
A fully closed door position detection switch 13 is used instead of 2, and the fully closed door position detection signal is directly sent to the elevator control circuit 1
I was using the input / output port 1h to activate the elevator. However, in the case of such a method, regardless of whether or not the passengers are full, the startup of the elevator is always delayed, and the operating efficiency of the elevator becomes extremely poor.

The present invention has been made in order to solve such a problem, and an object thereof is to obtain an elevator control device which can prevent the door from being caught without lowering the operation efficiency of the elevator.

[0014]

SUMMARY OF THE INVENTION An elevator control apparatus according to the present invention includes a loading amount detecting device for detecting a loading amount of a car, and a case where the number of passengers is almost full based on the output of the loading amount detecting device. And a first control means for changing the position of the door for starting the activation of the elevator to a position close to the fully closed position when the number of passengers is close to full.

Further, a load amount detecting device for detecting the load amount of the car, a detection circuit for detecting a case where the number of passengers is close to full based on the output of the load amount detecting device, and the number of passengers is close to full. In this case, the first control means for changing the position of the door for starting the activation of the elevator to a position close to the fully closed position of the door, and the position of the door for releasing the brake of the elevator when the number of passengers is close to the fully closed position And a second control means for changing the position closer to the position.

Further, if the number of pulses related to the rotation speed of the door motor from the position of the door for starting the activation of the elevator when the number of passengers is not close to fullness, is smaller than a predetermined value, it means that the door is caught. It is provided with a third control means for making a judgment and generating a door opening request signal.

[0017]

In the present invention, when the number of passengers is full,
Change the position of the door that starts the elevator startup to a position close to the door fully closed position. As a result, the start-up of the elevator is not always delayed, and it is possible to prevent passengers from pinching clothes, belongings, etc. in the door without lowering the operating efficiency of the elevator.

When the number of passengers is full, the position of the door for starting the activation of the elevator is changed to a position close to the door fully closed position, and the position of the door for releasing the elevator brake is changed to a position close to the door fully closed position. .. As a result, the start-up of the elevator is not always delayed, and it is possible to prevent passengers from pinching clothes, belongings, etc. in the door without lowering the operating efficiency of the elevator, and at the same time, the elevator car and counter counter weight It is possible to prevent the risk of moving in balance.

Further, if the number of pulses related to the rotation speed of the door motor from the position of the door for starting the start of the elevator when the number of passengers is not close to full, if the number of pulses is smaller than a predetermined value, it means that the door is caught. Judgment is made, a door opening request signal is generated, and the door is opened again. Thereby, the trapping of the door can be positively determined, and the safety for passengers can be improved.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention,
The parts corresponding to those in FIG. 8 are designated by the same reference numerals, and duplicate description thereof will be omitted. In FIG. 1, 1A is an elevator control circuit, and 2A is a door control circuit interconnected with the elevator control circuit 1A. Reference numeral 1a 'denotes a CPU for performing arithmetic processing of an input signal, 1b' denotes a CPU 1 via a bus 1i.
A ROM 1c 'connected to a', which stores a program based on the flowcharts of FIGS. 4 and 5 described later, is connected to the CPU 1a 'via a bus 1i, and a RAM capable of writing and reading the calculation result thereof. Reference numeral 2a 'is a CPU for processing the input signal, 2b' is connected to the CPU 2a 'via a bus 2i, and stores a program based on the flowcharts of FIGS. 2 and 3 described later.
M and 2j are A for A / D converting the output signal from the scaler circuit 19 as a load detecting device for detecting the load of the car.
It is a / D conversion circuit. When the fully closed door position detection switch 13 is turned on, 20 is supplied to the entry / exit port 1h of the elevator control circuit 1A through the input port 2d and the entry / exit port 2h to detect the door position near the fully closed position by the car door close switch 12. It is a position signal.

Next, the operation of the embodiment of the present invention shown in FIG. 1 will be described with reference to FIGS. First, with reference to FIG. 2, the transmission of the scale signal and the processing routine for determining the scale of the scale signal, that is, the processing routine for fullness detection will be described. In step S21, the output signal (output voltage) from the scaler circuit 19 is the A / D conversion circuit 2
It is supplied to j and A / D converted. This digitized value is used as the scale signal Vh. This scale signal Vh is C
It is read by the PU 2a 'and compared with a preset reference value Vhd representing the passenger occupancy detection level set in advance in step S22. As shown in FIG. 7, the reference value Vhd is set at, for example, 80% where the vertical axis represents the scale signal (output voltage) Vh and the horizontal axis represents the car weight. If the scale signal Vh is larger than the reference value Vhd, that is, if the number of passengers is close to full, step S23.
In step S24, if the over detection bit data HOD is set to "1" and the scale signal Vh is smaller than the reference value Vhd, that is, if the number of passengers is not close to full, the over detection bit data HOD is "1". It is set to 0 ", and in step S25, the values of the shadow signal Vh and the over detection bit data HOD are set to the communication port 2g.

Next, referring to FIG. 3, a door control circuit 2A
The brake release door position signal generation processing routine in step S6 will be described. CPU1 of elevator control circuit 1A
When the door closing command signal 14 is supplied from a'to the door control circuit 2A via the entry / exit port 1h, the CPU 2a 'controls the motor drive circuit 2e to drive the door motor 9 via the inverter circuit 8. As shown in FIG. 6 (a),
Close the door. At this time, a pulse signal synchronized with the rotation of the door motor 9 is transmitted from the encoder 10 to the pulse counter 2
It is supplied to f and counted, and the count value PCV is stored in the RAM 2c.

The CPU 2a 'reads the count value PCV from the RAM 2c and the over detection bit data HOD from the communication port 2g in step S26, and the over detection bit data HOD is "1" in step S27.
Determine if That is, it is determined whether to delay the generation of the brake opening door position signal 16 according to the value of the over detection bit data HOD. If the over detection bit data HOD is "0", the CPU 2a 'determines whether or not the count value PCV is larger than the predetermined value PCV1 in step S28, and the over detection bit data HO.
If D is "1", it is determined in step S29 whether the count value PCV is larger than the predetermined value PCV2. Here, the predetermined value PCV1 is, for example, a count value corresponding to the rising edge of the brake opening door position signal shown by the alternate long and short dash line in FIG. 6B, and the predetermined value PCV2 is the predetermined value PCV.
The count value of the position on the fully closed side from V1, for example, FIG.
It is a count value corresponding to the rising of the brake opening door position signal shown by the solid line in (b).

If the count value PCV is larger than the predetermined value PCV1 in step S28, step S3 is executed.
If it is not larger, the process directly returns to step S26. If the count value PCV is larger than the predetermined value PCV2 in step S29, the process proceeds to step S30, and if not, the process directly returns to step S26. In step S30, when the count value PCV is larger than the predetermined value PCV1, that is, when the number of passengers is not close to full, the CPU 2a 'outputs the brake opening door position signal 16 that rises early as shown by the dashed line in FIG. Output to the input / output port 1h of the elevator control circuit 1A via the input / output port 2h, and the count value PCV is the predetermined value PC.
If it is larger than V2, that is, the number of passengers is close to full,
As shown by the solid line in Fig. 6 (b), the brake opening door position signal 1 that rises later than when the number of passengers is not close to full
6 through the input / output port 2h to the elevator control circuit 1
Output to the A input / output port 1h.

Then, the CP of the elevator control circuit 1A
When U1a 'receives this brake opening door position signal 16 from the entry / exit port 1h, it drives the brake 7 via the brake drive circuit 1f, releases the brake, and drives the inverter circuit 3 via the motor drive circuit 1d. The elevator generates a torque that keeps the elevator motor 4 from moving due to the imbalance of the car and counter weight. It should be noted that whether or not the generation timing of the brake opening door position signal is changed according to the number of passengers may be arbitrary.

Next, with reference to FIGS. 4 to 5, the routine for determining the elevator start condition and the door open / close signal switching determination process in the elevator control circuit 1A will be described. CPU1
In step S31, a'reads out the values of the scale signal Vh and the over-detection bit data HOD transmitted from the communication port 2g to the communication port 1g in advance, and in step S32, the landing door closing switch 11 and the car door from the entry / exit port 1h. A signal regarding opening / closing of the close switch 12 and the door fully closed position detection switch 13 is read out, and step S3 is performed.
At 3, it is determined whether the hall door closing switch 11 is on, that is, whether the hall door is closed.

In this case, since the hall door closing switch 11 is not turned on yet, that is, the hall door is not closed, it is determined in step S34 whether the door closing command signal 14 has risen. In this case, door closing command signal 1
Since No. 4 has not risen yet, it is judged in step S35 whether the over detection bit data HOD is "1". If it is not "1", that is, if it is "0", the RAM 1c 'is used in step S36. As the timer reference value T _L for checking the door closing time when the number of passengers is not close to full in the closing timer, set the time period T1 corresponding to the rising time point of the elevator start signal indicated by the alternate long and short dash line in FIG. 6C. If it is "1", the elevator start shown in the solid line in FIG. 6 (c) is set as the timer reference value _TL for checking the door closing time when the number of passengers is almost full in the door closing timer in step S37. Time period T2 corresponding to the rising time of the start signal (longer than time period T1)
Set.

Then, the CPU 1a 'executes step S3.
At 8, it is determined whether the door closing time exceeds the timer reference value T _L. In this case, since the door closing time has not yet exceeded the timer reference value T _L , step S39
At, the door open request signal DOR is read from the communication port 1g. The value of the door opening request signal DOR is determined by the number of pulses from the encoder 10 from the rising time point indicated by the dashed-dotted line of the elevator start signal in FIG. 6C to the rising time point indicated by the solid line, and is more than that value. A smaller value is used as a reference value, and if it is smaller than this reference value, it is determined that there is jamming and the door opening request signal DOR is set to "1". Signal D
"0" is set in OR and the data is transmitted in advance to the communication port 1g via the communication port 2g. In this case, since the door closing command signal 14 is not generated and the door opening request signal DOR cannot be read, the process returns to step S31 through step S40.

In the next cycle, after passing through step S31 and step S32, the hall door closing switch 11 is not turned on in step S33, and the door closing command signal is raised in step S34. Therefore, the door closing time is set in step S41. Start the door close timer to measure. Then, the CPU 1a 'determines in step S38 whether or not the door closing time has exceeded the timer reference value T _{L. If} not, it is determined that the door is closing and the door opening request is issued from the communication port 1g in step S39. The signal DOR is read, and it is determined in step S40 whether the door opening request signal DOR is "1",
If it is not "1", that is, if it is "0", it is considered that there is no pinch and the process returns to step S31.

On the other hand, if the timer reference value T _L is exceeded in step S38, for example, the door is once opened in order to remove something trapped in the door or any obstacle in the groove of the threshold. To step S42,
If the door opening request signal DOR is "1" in step S40, it is considered that there is a pinch and the process proceeds to step S42. In step S42, the CPU 1a 'switches from the door closing command signal 14 to the door opening command signal 15, and then proceeds to step S31. Return.

In the next cycle, the CPU 1a '
Indicates that the hall door closing switch 11 on the floor with the car is on in step S33 after passing through steps S31 and 32, that is, the hall door is closed, so the car door closing switch 12 is turned on in step S43. If there is, that is, if the car door is closed, it is determined that if it is not on, that is, if the car door is not closed, the process proceeds to step S34 and the above-described operation is repeated.
If it is on, that is, if the car door is closed, it is determined in step S44 whether or not the over detection bit data HOD is "1". If it is "0", the process proceeds to step S46 and "1" is set. If so, it is determined in step S45 whether or not the door full-closed position detection switch 13 is on, that is, whether or not the door is closed to the elevator start position when the number of passengers is close to full. If is not closed to the elevator start position, the process proceeds to step S34 to repeat the above operation. If it is ON, that is, if the door is closed to the elevator start position, the process proceeds to step S46.

Then, when the over detection bit data HOD is "0", that is, when the number of passengers is not close to full, the CPU 1a 'starts the elevator rising early as shown by the one-dot chain line in FIG. 6 (c). A start-up start signal is generated for the motor drive circuit 1d, and the motor drive circuit 1d starts the start-up of the elevator motor 4 via the inverter circuit 3 as shown by the alternate long and short dash line in FIG.

On the other hand, when the over detection bit data HOD is "1", that is, when the number of passengers is close to full, the CPU 1a 'determines that the number of passengers is close to full as shown by the solid line in FIG. 6C in step 46. An elevator start-up signal that rises later than when it does not exist is generated for the motor drive circuit 1d, and the motor drive circuit 1d starts the elevator motor 4 via the inverter circuit 3 as shown by the solid line in FIG. .. At a position close to a fully closed position (a few millimeters before the fully closed position), the door fully closed position detection switch 13 is turned on, and a door fully closed position detection signal as shown in FIG. 6D is input to the input port 2d. Therefore, the CPU 2a 'controls the door motor 9 via the motor drive circuit 2e and the inverter circuit 8 to limit the motor torque to a small value so that the door is pressed so that the passenger does not open it even if the passenger mischiefs it. The same as above.

[0034]

As described above, according to the present invention, a load amount detecting device for detecting the load amount of a car, and a detection for detecting a case where the number of passengers is almost full based on the output of the load amount detecting device. Since the circuit and the first control means for changing the position of the door for starting the activation of the elevator to a position close to the fully closed position of the door when the number of passengers are close to being full, the operation efficiency of the elevator is reduced. It is possible to prevent passengers from pinching clothes, belongings, and the like in the door, and it is possible to improve safety for passengers.

Further, based on the output of the load detection device, a detection circuit for detecting when the number of passengers is close to full, and a position of the door for starting the activation of the elevator when the number of passengers is close to full A first control means for changing the door close to the fully closed position; and a second control means for changing the position of the door for releasing the brake of the elevator to a position close to the fully closed position when the number of passengers is close to full. Therefore, it is possible to prevent passengers from pinching clothes, belongings, etc. in the door without lowering the operation efficiency of the elevator, and also to prevent the elevator from moving due to imbalance of the car and counter weight. The effect of being able to improve the safety against

Further, when the number of pulses related to the rotation speed of the door motor from the position of the door for starting the activation of the elevator when the number of passengers is not close to full, it is determined that the door is pinched. However, since the third control means for generating the door opening request signal is provided, it is possible to prevent passengers from pinching clothes, belongings, etc. in the door without lowering the operation efficiency of the elevator and / or the elevator and the counter weight. It is possible to prevent the possibility of moving due to the imbalance of
This has the effect of further increasing the safety for passengers.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of an elevator control device according to the present invention.

FIG. 2 is a flowchart for explaining the operation of FIG.

FIG. 3 is a flowchart for explaining the operation of FIG.

FIG. 4 is a flowchart for explaining the operation of FIG.

5 is a flow chart for explaining the operation of FIG. 1. FIG.

6 is a diagram for explaining the operation of FIG. 1. FIG.

7 is a diagram for explaining the operation of FIG. 1. FIG.

FIG. 8 is a configuration diagram showing a conventional elevator control device.

9 is a flowchart for explaining the operation of FIG.

10 is a flowchart for explaining the operation of FIG.

FIG. 11 is a diagram for explaining the operation of FIG.

[Explanation of symbols]

 1A Elevator control circuit 2A Door control circuit 11 Landing door close switch 12 Car door close switch 13 Door fully closed position detection switch 19 Hakari circuit

Claims (4)

[Claims] 1. A load amount detection device for detecting a load amount of a car, a detection circuit for detecting a case where the number of passengers is almost full based on an output of the load amount detection device, and the number of passengers is almost full. In this case, the elevator control device further comprises: first control means for changing the position of the door for starting the activation of the elevator to a position close to the fully closed position of the door. 2. A load amount detection device for detecting a load amount of a car, a detection circuit for detecting a case where the number of passengers is close to full based on an output of the load amount detection device, and the number of passengers is close to full. In this case, the first control means for changing the position of the door for starting the activation of the elevator to a position close to the fully closed position of the door; Second change to near position
And an elevator control device. 3. The first control means has a measuring means for measuring the door-closing time for a certain period of time after the door-closing command signal is generated, and when the number of passengers is almost full, the door-closing command signal is generated. The elevator control device according to claim 1 or 2, wherein the time period for measuring the door closing time for a certain period of time is made longer than that when the number of passengers is not close to full. 4. When the number of pulses related to the rotation speed of the door motor from the position of the door that starts the activation of the elevator when the number of passengers is not close to full, it is determined that the trapping of the door has occurred. The elevator control apparatus according to claim 1 or 2, further comprising a third control means for generating a door opening request signal.