WO2007039929A1

WO2007039929A1 - Door control device for elevator

Info

Publication number: WO2007039929A1
Application number: PCT/JP2005/018284
Authority: WO
Inventors: Toshio Masuda
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2005-10-03
Filing date: 2005-10-03
Publication date: 2007-04-12
Also published as: CN101056814A; JPWO2007039929A1

Abstract

A door control device for an elevator, in which a control device body detects an obstacle at a landing based on a signal from a sensor provided at an elevator door device. Operation of closing an elevator door is controlled depending on whether there is an obstacle at the landing. Also, the control device body changes the timing at which operation for detecting an obstacle is made effective while the door is being closed, and the change is made according to at least any one of user information, door speed information, and landing floor information.

Description

Specification

Elevator door control device

Technical field

TECHNICAL FIELD [0001] The present invention relates to an elevator door control device that detects an obstacle at a landing when the door is closed.

Background art

[0002] In a conventional elevator door control device, the door control unit detects an obstacle on the landing when the elevator door movement direction is the closing direction and the elevator door opening width is within a preset range. The elevator door is moved in the open direction (e.g.

Patent Document 1).

[0003] Patent Literature l: WO02Z 0 16250

Disclosure of the invention

Problems to be solved by the invention

[0004] In the conventional elevator door control device as described above, the door opening width range in which the obstacle detection operation is effective is fixed regardless of the door speed or the user, so that the elevator is sufficiently It was hard to drive efficiently.

[0005] The present invention has been made to solve the above-described problems, and in order to solve the problems aimed at obtaining an elevator door control device capable of improving the operation efficiency of the elevator. Means

[0006] An elevator door control device according to the present invention includes a control device main body that detects an obstacle on a landing based on a sensor signal provided in the elevator door device, and the control device main body is in a door closing operation. The timing at which the obstacle detection operation at the landing is made effective is changed according to at least one of user information, door speed information, and landing floor information.

The elevator door control device according to the present invention further includes a control device main body that detects an obstacle on the landing based on a sensor signal provided in the elevator door device. The main body of the control device changes the range of the door opening width in which the detection operation of the obstacle at the landing is valid during the door closing operation according to at least one of the user information, the door speed information, and the landing floor information. .

The elevator door control device according to the present invention further includes a control device main body that detects an obstacle on the basis of a signal of a sensor force provided in the elevator door device. The detection operation is valid when the door is closed and invalid when the door is open and when the door is stopped.

Brief Description of Drawings

FIG. 1 is a configuration diagram illustrating an elevator door device according to a first embodiment of the present invention.

FIG. 2 is a timing chart showing the timing of a landing obstacle detection operation by the determination unit of FIG.

FIG. 3 is a configuration diagram showing an elevator door device according to Embodiment 2 of the present invention;

FIG. 4 is a timing chart showing the timing of a landing obstacle detection operation by the determination unit of FIG.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

Embodiment 1.

FIG. 1 is a configuration diagram showing an elevator door device according to Embodiment 1 of the present invention. Safety shoes 3 and 4 are provided at the front ends of the elevator doors 1 and 2. A safety obstacle 3 or 4 has a built-in obstacle detection sensor (3D sensor) 5. The landing obstacle detection sensor 5 includes a light emitting unit 5a that emits detection light toward the landing and a light receiving unit 5b that receives detection light reflected by an obstacle such as a passenger.

The opening / closing operation of the elevator doors 1, 2 is controlled by the opening / closing control unit 6. Specifically, the opening / closing control unit 6 controls driving of a door motor that opens and closes the elevator doors 1 and 2 in accordance with a command from an elevator control device (not shown).

[0010] A determination unit (calculation unit) 9 is connected to the light emitting unit 5a and the light receiving unit 5b via cables 7 and 8. The determination unit 9 controls the light emitting unit 5a and detects an obstacle on the landing based on a signal from the light receiving unit 5b. That is, the determination unit 9 performs multiplication based on the signal from the light receiving unit 5b. Determine if there are obstacles in the field. In addition, the judgment unit 9 detects the movement direction of the elevator doors 1 and 2 based on the information from the opening / closing control unit 6, and makes the obstacle detection operation at the landing effective during the door closing operation, Invalid when stopped.

[0011] When an obstacle on the landing is detected during the door closing operation, an obstacle detection signal is input from the determination unit 9 to the opening / closing control unit 6 via the cable 10, and the opening / closing control unit 6 causes the elevator door 1, The movement direction of 2 is reversed to the opening direction.

[0012] User information is input to the determination unit 9 from the open / close control unit 6 via the signal line 11. User information is information for classifying users, such as whether they are normal users or wheelchair users. For example, the opening / closing control unit 6 also obtains user information from the elevator controller power. In addition, the elevator control device creates user information by processing images taken by the camera in the hall and in the car and determining whether the call button for wheelchair users has been operated. To do. User information can also be created using the information acquired at call registration.

[0013] The determination unit 9 changes the timing at which the obstacle detection operation at the landing is validated during the door closing operation according to the user information. As a result, the range of the door opening width that enables the obstacle detection operation at the landing during the door closing operation is changed according to the user information.

[0014] Specifically, upon receiving information on the wheelchair control mode, the determination unit 9 enables the landing obstacle detection operation at an earlier timing and disables it at a later timing than in the normal control mode. To do. As a result, the range of the door opening width in which the landing obstacle detection operation is effective becomes wider in the wheelchair control mode than in the normal control mode. The door opening width when enabling the obstacle detection operation is the normal control mode Wa <wheelchair control mode, Wb.

The control device body 12 includes an opening / closing control unit 6, a determination unit 9, a cable 10, and a signal line 11.

FIG. 2 is a timing chart showing the timing of the landing obstacle detection operation by the determination unit 9 in FIG. 1, and the time elapses from the left to the right in the figure. In the normal control mode, the landing obstacle detection operation becomes valid after a predetermined time T1 when the door closing operation starts, and the landing obstacle detection operation becomes invalid after a predetermined time T2 when the force is activated. [0017] On the other hand, in the wheelchair control mode, the door obstacle detection operation becomes effective after a predetermined time T3 (however, T3 to T1) of the door closing operation, and the force is applied to activate the force for a predetermined time T4 (however, Τ4> Τ2) The landing obstacle detection operation becomes invalid. In addition, the door speed when the door is closed in the wheelchair control mode is lower than the door speed in the normal control mode.

[0018] In such an elevator door control device, the timing for enabling the landing obstacle detection operation and the range of the door opening width are changed according to the user information, so that the operation efficiency of the elevator is improved. be able to. For example, when a wheelchair user tries to get on and off, the landing obstacle detection sensor 5 can be enabled at an earlier timing and the landing obstacle detection sensor 5 can be enabled for a long time. Passengers can get on and off smoothly. In addition, it is possible to prevent a decrease in driving efficiency due to excessive detection of obstacles compared to when the landing obstacle detection operation is always enabled during the door closing operation.

[0019] Further, in the landing obstacle detection, the range of the door opening width in which the sensor is effective can be adjusted by changing the time timing at which the detection operation is validated, so the landing obstacle detection sensor for each elevator 5 It is not necessary to adjust the operating position of the machine, and the installation and maintenance costs can be reduced.

[0020] Embodiment 2.

Next, FIG. 3 is a block diagram showing an elevator door device according to Embodiment 2 of the present invention. The determination unit 9 receives door speed information when the door is closed from the opening / closing control unit 6 as door operation control mode information. In this example, the door speed is faster than the normal control mode and the normal control mode, the door speed is slower than the normal control mode, and the door speed is slower than the normal control mode. Is input. The opening / closing control unit 6 obtains door speed information from, for example, an elevator control device.

[0021] The determination unit 9 changes the timing for validating the obstacle detection operation at the landing during the door closing operation according to the door speed information. As a result, the door opening width range for enabling the obstacle detection operation at the landing during the door closing operation is changed according to the door speed information.

Specifically, upon receiving information on the high speed control mode, the determination unit 9 validates the landing obstacle detection operation at an earlier timing than in the normal control mode. Also, upon receiving information on the low-speed control mode, the judgment unit 9 detects the landing obstacle detection action more than in the normal control mode. Activate the work later. As a result, the door opening width when the landing obstacle detection operation is enabled becomes wider in the high speed control mode than in the normal control mode, and narrower in the low speed control mode than in the normal control mode. That is, the door opening width when the landing obstacle detection operation is validated is the low speed control mode Wc <the normal control mode Wa <the high speed control mode Wb. Further, by adjusting the timing for enabling the sensor, the door opening width for enabling the sensor can be made the same regardless of the door speed control mode.

FIG. 4 is a timing chart showing the timing of the landing obstacle detection operation by the determination unit 9 in FIG. 3, and the time elapses from the left to the right in the figure. In the normal control mode, the landing obstacle detection operation becomes valid after a predetermined time T1 when the door closing operation starts, and the landing obstacle detection operation becomes invalid after a predetermined time T2 when the force is activated.

[0024] On the other hand, in the high-speed control mode, the starting force of the door closing operation is also effective after a predetermined time T5 (however, T5 and T1), and the landing obstacle detection operation becomes effective, and after the predetermined time T6 The landing obstacle detection operation is disabled.

[0025] In the low-speed control mode, the landing obstacle detection operation becomes effective after a predetermined time T7 (however, ΤΚΤ7) of the door closing operation, and the landing obstacle detection operation after the predetermined force Τ8 is activated. Becomes invalid.

[0026] In such an elevator door control device, the timing for enabling the landing obstacle detection operation and the range of the door opening width are changed according to the door speed information, so that the operation efficiency of the elevator can be improved. Can do. For example, when the door speed is high, the door opening width when enabling the landing obstacle detection operation can be widened to improve user safety. Also, when the door speed is slow, the door opening width when enabling the landing obstacle detection operation can be narrowed to reduce unnecessary reversal and improve driving efficiency.

[0027] In the above example, the timing at which the landing obstacle detection operation is enabled and the range of the door opening width are changed according to the user information or door speed information. You may change according to landing floor information, such as a form. Moreover, you may change according to the combination of several information among user information, door speed information, and landing floor information. Further, in the above example, the determination unit 9 may be configured with a single device that is configured separately from the opening / closing control unit 6. Further, the determination unit 9 may be configured by an arithmetic device that performs digital arithmetic processing on signals from the landing obstacle detection sensor 5 and the opening / closing control unit 6 or may be configured by an analog electric circuit. Furthermore, in the above example, the landing obstacle detection sensor 5 is provided on the safety shoes 3 and 4, but the sensor may be arranged at another position.

Claims

The scope of the claims

[1] An elevator door control device comprising a control device body for detecting obstacles on the landing based on signals of sensor force provided in the elevator door device,

The main body of the control device changes the timing for enabling the obstacle obstacle detection operation during the door closing operation according to at least one of user information, door speed information, and hall floor information. Door control device.

[2] When the control device main body receives wheelchair control mode information as user information, it activates the landing obstacle detection operation earlier than when it receives normal control mode information! The elevator door control device according to claim 1, wherein the elevator door control device is invalidated at a later timing.

[3] The control device body, when receiving the information on the high-speed control mode as the door speed information, activates the landing obstacle detection operation earlier than when receiving the information on the normal control mode. The elevator door control device according to 1.

[4] The control device body, when receiving the information on the low speed control mode as the door speed information, delays the landing obstacle detection operation than when receiving the information on the normal control mode! The elevator door control device according to 1.

[5] An elevator door control device comprising a control device main body for detecting obstacles on the landing based on signals of sensor force provided in the elevator door device,

The control device body determines the range of the door opening width that enables the detection operation of the obstacle at the landing during the door closing operation according to at least one of user information, door speed information, and landing floor information. Elevator door control device to change.

[6] When the control device main body receives wheelchair control mode information as user information, the control device main body sets the door opening width range in which the landing obstacle detection operation is more effective than when the normal control mode information is received. 6. The elevator door control device according to claim 5, wherein the elevator door control device is widened.

[7] When the control device main body receives the high-speed control mode information as the door speed information, the control device main body widens the door opening width when enabling the landing obstacle detection operation than when receiving the normal control mode information. The elevator door control device according to claim 5.

[8] When the control device main body receives the low-speed control mode information as the door speed information, 6. The elevator door control device according to claim 5, wherein the door opening width when the landing obstacle detection operation is validated is narrower than when the control mode information is received.

An elevator door control device comprising a control device body for detecting obstacles at a landing based on a sensor force signal provided in the elevator door device,

The control device body is an elevator door control device that enables the obstacle detection operation at the landing to be valid during the door closing operation and invalid during the door opening operation and when the door is stopped.