KR101844200B1

KR101844200B1 - Elevator door opening/closing device and repair method for elevator door opening/closing device

Info

Publication number: KR101844200B1
Application number: KR1020177007604A
Authority: KR
Inventors: 하루노리 시오사키
Original assignee: 미쓰비시덴키 가부시키가이샤; 미쓰비시 덴키 빌딩 테크노 서비스 가부시키 가이샤
Priority date: 2014-08-25
Filing date: 2014-08-25
Publication date: 2018-03-30
Also published as: JP6218952B2; KR20170044168A; JPWO2016030944A1; CN106573759B; WO2016030944A1; HK1232203A1; CN106573759A

Abstract

A first control substrate (11) for generating a driving current signal of a motor (12) for opening and closing an elevator door (13) by performing feedback control based on information of an encoder (14) And a second control board 22 inserted between the first control board 11 and the motor 12. [ The second control board 22 monitors the first driving current signal output from the first control board 11 as a result of performing the feedback control and when it determines that the first driving current signal is normal, Which is capable of rotating the motor 12 in the direction corresponding to the door opening / closing instruction when it is determined that the first driving current signal is abnormal, And generates and outputs a current signal.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator door opening / closing device and an elevator door opening /

An elevator door opening and closing apparatus and method for an elevator door opening / closing apparatus prior to repair (repair), which can control the door opening / closing control of the elevator door, And a method of repairing an elevator door opening / closing apparatus.

The elevator door opening / closing apparatus generally controls opening and closing of a door by a signal from a motor encoder. In the elevator door opening / closing apparatus, a motor speed pattern matching a characteristic of a mechanical system is set for a door whose motor rotational speed and door speed are nonlinear, typified by a link-type door, and opening and closing control is performed.

In the elevator door opening / closing apparatus, a door opening / closing instruction for executing the door opening / closing operation sequence is generally issued from an external device (for example, a control panel for controlling the entire elevator), not the door opening / . The door opening / closing apparatus controls the opening and closing of the door of the door in accordance with the door opening / closing command received from the external device.

With respect to the number of elevators, there is a strong desire to utilize existing equipment in terms of cost and construction period, and there is a desire to make the existing equipment as useful as possible in the door opening / closing apparatus. Therefore, there is a conventional technique that makes it possible to obtain appropriate door opening and closing dynamic characteristics even when detailed information of the link structure and the like can not be obtained when the elevator door opening / closing apparatus is partially used by utilizing existing equipment (for example, Patent Document 1).

In this patent document 1, at the time of repair, the existing elevator car door panel and the driving mechanism are left, and the door motor, the motor speed detector and the door control device are removed. In addition, the dismantled control-related equipment is exchanged for new equipment, and a new door speed detector is installed.

In Patent Document 1, the door speed command is generated from the designated door opening / closing time and the moving distance of the door panel by performing the adjusting operation. Further, in Patent Document 1, the speed ratio of the door movement speed and the motor rotation speed by the adjustment operation is calculated, and the door speed command is converted in accordance with the result to generate the motor speed command.

In other words, Patent Document 1 generates a motor speed command for realizing an appropriate control operation by performing the adjustment operation. As a result, some number of the existing elevator car door panels and driving mechanisms are utilized and new control related devices are used. In addition, the repairing method according to Patent Document 1 is applicable to repair work for a door device of a third party.

Patent Document 1: Japanese Patent Application Laid-Open No. 2002-302369

However, the prior art has the following problems.

Patent Document 1 discloses an adjusting method for obtaining a desired door opening / closing control operation when an existing elevator car door panel and a driving mechanism are used and the control related equipment is interchanged. However, this Patent Document 1 does not make any practical use of the actual operating characteristics of the door opening / closing control employed by the control related devices before the number of times.

In other words, a worker who actually performs the adjustment operation must utilize the newly designed control board, only the mechanical system of the door is used before the number, and the door opening / closing control operation must be readjusted. Therefore, even if the door opening / closing control operation can be readjusted according to the procedure, there is a problem that the adjustment operation is burdensome in a limited number of such mechanical systems.

Particularly, when the door system is a link system and the control substrate before the number is a third-party product, the design of the control system is not easy, and the number of the mechanical systems is limited.

An object of the present invention is to provide an elevator capable of easily realizing a design of a control system for obtaining an appropriate door opening / closing control operation when a door is unknown, And a method for repairing an elevator door opening / closing apparatus.

The elevator door opening and closing apparatus according to the present invention includes a first control substrate for generating a driving current signal of a motor for opening and closing an elevator door by performing feedback control based on information of an encoder in accordance with a door opening / closing command, The elevator door opening / closing apparatus for controlling opening and closing of a door further includes a second control board inserted between the first control board and the motor, wherein the second control board has a first control board, The control unit monitors the first drive current signal output from the first control board to output the first drive current signal as a drive current signal for driving and controlling the motor when the first drive current signal is determined to be normal, If it is determined that the current signal is abnormal, the motor can be rotated in the direction corresponding to the door open / close command , To generate a specified torque than the second drive current signal, and outputs the generated second drive current signal, a driving current signal to drive control of the motor.

According to the present invention, there is provided a method of repairing an elevator door opening / closing apparatus, comprising: a first control for generating a driving current signal of a motor for opening and closing an elevator door by performing a feedback control based on information of an encoder, An elevator door opening / closing apparatus provided with a substrate and controlling the opening and closing of the elevator door includes a second control board inserted between the first control board and the motor when the elevator door, which is unknown to the mechanical system, A first step of reading a first driving current signal outputted from a first control board as a result of performing a feedback control by a first control board in a second control board, The operation direction of the elevator door corresponding to the first driving current signal read in the first step, A second step of monitoring whether or not the opening and closing instructions are matched with each other and a second step of monitoring whether or not the first driving current signal is normal when the operating direction and the door opening / closing instruction are matched based on the monitoring result of the second step A third step of judging that the first drive current signal is abnormal if it is determined that the first drive current signal is normal by the third step; When the first drive current signal is judged to be abnormal by the third step, the control means controls the motor so as to rotate the motor in the direction corresponding to the door opening / 2 drive current signal, and outputting the generated second drive current signal as a drive current signal for driving and controlling the motor.

According to the present invention, after the control boards before the number are used to secure the same characteristics as the current door opening / closing control operation, the interface with the elevator system and the abnormality of the control boards before the number And a system configuration for monitoring is adopted to perform the repair. As a result, an elevator door opening / closing apparatus and an elevator door opening / closing apparatus repairing method capable of easily realizing the design of a control system for obtaining a proper door opening / closing control operation when a certain number of doors are utilized by utilizing a door have.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an overall configuration diagram showing a state before and after the number of elevator door opening / closing devices according to Embodiment 1 of the present invention. FIG.
2 is an overall configuration diagram including a detailed configuration of a new control board used in an elevator door opening / closing apparatus according to Embodiment 1 of the present invention.

The first technical feature of the present invention is that a control system (an existing control board) is available and control is realized for a door in which a mechanical system is unknown. Further, when the existing control system is useful, there is a risk that the control operation of the door which is not intended by the elevator system occurs due to an unknown function (unexpected door control operation by the existing control board). Therefore, in the present invention, a new control board is additionally provided, an existing control board is useful, an interface with the elevator system is performed by the new control board, and monitoring of unintended operation is performed Thereby realizing an appropriate control operation.

Hereinafter, preferred embodiments of the elevator door opening / closing apparatus and the elevator door opening / closing apparatus of the present invention will be described in detail with reference to the drawings. In the following description, the first control substrate existing before the number is referred to as an " existing control substrate ", and the second control substrate newly added after the number is referred to as a " new control substrate ". Further, the elevator door opening / closing apparatus according to the present invention is not limited to the configuration after the repair work, but is characterized in adopting a configuration in which the first control board and the second control board are used together.

Embodiment 1

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an overall configuration diagram showing a state before and after the number of elevator door opening / closing devices according to Embodiment 1 of the present invention. FIG. Specifically, the elevator door opening / closing apparatus before the number shown in Fig. 1 (a) is constituted by including an existing control board 11, an existing motor 12, an existing door apparatus 13 and an existing encoder 14 have. The elevator door opening / closing apparatus before the number is configured to receive a door opening / closing instruction from the external apparatus 1. [

On the other hand, the numbered elevator door opening / closing apparatus shown in Fig. 1 (b) further comprises a completely open / close close detection sensor 21 and a new control board 22. The elevator door opening / closing apparatus after the number is configured to receive door opening / closing instructions from the external apparatus 1 and receive the existing door opening / closing apparatus information from the constructor (or the adjustment worker) 2.

1 (a), the existing door opening / closing apparatus to be subjected to the present invention can perform feedback control based on the information of the existing encoder 14, Generates a drive current signal, and outputs the generated drive current signal to an existing motor (12).

1 (a) and FIG. 1 (b), when the number of the doors is increased by utilizing the door whose mechanical system is unknown, the present invention is useful without removing the existing control board 11 , A completely open / close-closed detection sensor 21 and a new control board 22 are newly added.

More specifically, as shown in Fig. 1 (b), in the configuration after the number of repetitions in the first embodiment, between the existing control substrate 11 and the existing motor 12 included in the existing door opening / A new control board 22 is newly added.

1 (b), the door opening / closing instruction from the external device (elevator control panel or the like) 1 and the door open / close command from the external device (the elevator control panel or the like) are stored in both of the existing control board 11 and the new control board 22, Is input to the control unit 40. [0050] Further, in the configuration of Fig. 1 (b) after the number of additions, a complete open / close close detection sensor 21 for detecting the door full open / door complete close is newly added, And the detection signal by the control unit 21 is incorporated into the new control board 22. [

Next, specific control in the configuration after the number of Fig. 1 (b) will be described. On the basis of the door opening / closing command from the external device 1 and the information on the number of motor pulses from the existing encoder 14, the driving control circuit 11 controls the driving current Signal (an existing current signal).

The new control board 22 receives the driving current signal generated in the existing control board 11 and monitors the consistency of the received driving current signal by using a door opening / closing instruction and a threshold value set in the new control board 22 do.

This monitoring function of the driving current signal is carried out by an unknown function (control operation of an unexpected door by an existing control board), which is conventionally provided by the existing control board 11, There is an effect of reducing the risk of occurrence of the control operation of the door. The monitoring function will be described in detail below with reference to FIG.

It is also possible for the new control board 22 to limit the drive current signal by applying a current limit to the drive current signal generated by the existing control board 11 by setting the current limiter in advance.

When the new control board 22 determines that there is no abnormality in the drive current signal generated in the existing control board 11, the drive current signal generated in the existing control board 11 is directly driven Current signal, and is useful as a driving current signal for driving the existing door apparatus 13. That is, when the driving current signal generated by the existing control board 11 is normal, the same door opening / closing control as before the number is performed.

On the other hand, when the new control board 22 determines that there is an abnormality in the drive current signal generated in the existing control board 11, the new control board 22 does not utilize the drive current signal generated in the existing control board 11, And outputs the drive current signal generated by itself to the existing motor 12. That is, when the existing control board 11 is abnormal, the door opening / closing control can be continued by utilizing the driving current signal generated by the new control board 22.

Here, the new control board 22 generates the driving current signal by itself from the current value at the normal time, the door open / close time, and the pulse change amount of the conventional encoder 14. [ Since the mechanical system of the existing door device 13 is unknown, the relationship between the motor rotational speed and the door speed at the time of repair is unclear. Therefore, the new control board 22 can not realize a smooth operation (that is, equivalent to the operation at the time of normal operation of the external control board 11), which is used for opening and closing a normal door. However, the new control board 22 can generate the driving current signal for reliably opening and closing the door on the basis of the door opening / closing time and the pulse variation amount, so that the door opening / closing control can be continued (details will be described later).

Next, more detailed control contents after the number is described with reference to Fig. 2 together with the detailed configuration of the new control board 22. Fig. Fig. 2 is an overall configuration diagram including a detailed configuration of a new control board 22 used in an elevator door opening / closing apparatus according to Embodiment 1 of the present invention.

2 includes a setting unit 221, a current monitoring unit 222, a normal data determination storing unit 223, a current generating unit 224, and a current switching unit 225 Consists of.

The setting unit 221 has a function of setting the information that the constructor (or the adjustment worker) 2 can easily determine at the time of the repair work as " existing door open / close device information ". More specifically, the contractor 2 can set the following information as an example of " existing door opening / closing apparatus information " by checking the state of the existing door opening / closing apparatus.

(Information 1) Opening / closing method (frontage type)

(Information 2) Length of entrance (frontage size)

(Information 3) Direction of motor rotation at door opening / closing

(Information 4) Door opening / closing time before number

Next, the current monitoring unit 222 receives the door open / close command from the external device 1, and the drive current signal (the present current signal) from the terminal control board 11 from the setting unit 221 Respectively. The current monitoring unit 222 monitors the door operating direction (door opening / closing / stopping) of the door by the existing current signal and the consistency of door opening / closing commands.

Here, the direction of rotation of the motor and the direction of operation of the door differ depending on the structure and the situation of the door opening / closing apparatus (corresponding to the door opening / closing system). Thus, in the first embodiment, information on the "motor rotation direction at the time of door opening and closing" and information about "door opening / closing method" are stored in the setting unit 221 in the new control board 22 And the contractor 2 sets it. Thereby, the current monitoring unit 222 compares the polarity of the driving current signal (the current signal) generated in the existing control board 11 with the logic of the door opening / closing instruction received from the external device 1, The direction of rotation of the motor at the time of door opening / closing ", and the " entrance / exit opening / closing method ". The current monitoring unit 222 outputs the confirmation result of the consistency to the current generating unit 224 and the current switching unit 225 as information of "current abnormality".

Next, the normal data determination storage unit 223 stores a value corresponding to the transition state of the control current in the opening / closing operation when the door opening / closing operation is normally performed using the existing current signal. Here, the normal data determination storage unit 223 stores the result of detection by the full open / full close detection sensor 21 within the operation period of moving from the completely opened state to the fully closed state, or from the fully closed state to the fully opened state By counting the motor pulses output from the conventional encoder 14 per unit time within the moving operation period, the value corresponding to the transition state of the control current in the opening and closing operation Can be measured.

The normal data determination storage unit 223 stores the time taken to move from the completely opened state to the fully closed state when the actual opening and closing operation is performed, Or the time from the fully closed state to the fully open state is compared. If the difference is within the allowable time difference, it can be determined that the door opening / closing operation is completed within a normal time. Further, the normal data determination storage unit 223 stores the movement amount obtained by counting the number of motor pulses when the motor is moved from the completely open state to the fully closed state, or from the fully closed state to the fully open state, and the " If the difference is within the permissible distance difference, it can be determined that the door opening / closing operation has been completed and the operation has been completed.

The normal data determination storage unit 223 stores the value corresponding to the transient state of the control current in the opening and closing operation in the normal operation as the latest value in accordance with the change in the aging period, It is also possible to update it.

Further, the normal data determination storage unit 223 stores, based on the " value corresponding to the transition state of the control current in the opening and closing operation " measured over the " length of the doorway " A threshold value (current limiter) for performing detection when it is applied can be generated. For example, the normal data determination storage unit 223 stores the pulse count value 0.8 times the maximum value of the " value corresponding to the transition state of the control current in the opening and closing operation " As shown in FIG.

The normal data determination storage unit 223 generates a pulse transition state by counting the number of motor pulses per unit time during actual opening and closing control so that a state in which the state not exceeding the threshold value set for overload detection is equal to or longer than a preset time It is judged that a state in which a door is overloaded and a desired moving amount is not obtained occurs, and an overload can be detected.

Next, based on the signal of the number of motor pulses from the existing encoder 14, the current generating section 224 generates a control current signal for reliably operating the door as a new current signal. That is, when the current monitoring unit 222 determines that there is an abnormality in the driving current signal generated in the existing control board 11, the new current signal is used to control the current motor 12 in place of the existing current signal .

Specifically, when the current generation unit 224 receives the information of " current abnormality " from the current monitoring unit 222 and determines that the direction of operation of the door opening / closing instruction differs from that of the existing current signal, By increasing the value of the new current signal until a change in the number of motor pulses detected by the conventional encoder 14 occurs in a direction capable of achieving consistency, the drive current signal having the torque required for the door to operate at the minimum, As a new current signal.

When the door opening / closing instruction is not inputted after receiving the information of "current abnormality", it is necessary to stop the door at that position. Therefore, when the door opening / closing instruction is not input, the current generation unit 224 reads the door opening / closing instruction from the external device 1, and when the door opening / closing instruction is not inputted, And generates a drive current signal having a reverse value as a new current signal.

In addition, the current generation unit 224 generates, in the generation of the above-mentioned new current signal, the transition state of the control current in the opening and closing operation, which is stored in the normal data determination storage unit 223, Quot ;, a limiter can be set based on " a value corresponding to " Thereby, the current generating section 224 can apply an appropriate limit to the new current signal to be generated.

Next, the current switching section 225 selectively switches the drive current signal to be output to the existing motor 12 based on the "current abnormality" information from the current monitoring section 222. Specifically, in the case of "no current abnormality", the current switching section 225 selects the existing current signal from the existing control substrate 11 as the driving current signal. On the other hand, when the current is abnormal, the current switching unit 225 selects the new current signal generated by the current generating unit 224 as the drive current signal, and controls the existing motor 12.

As described above, according to the first embodiment, when a part of the elevator door opening / closing apparatus is carried out, a new control board is inserted between the existing control board and the existing motor without removing the existing control board. Based on the door opening / closing command, the existing control board generates a driving current signal suitable for opening / closing control of the existing door. The new control board performs an interface with the elevator system and monitors whether the drive current signal generated on the existing control board is normal or not. When the existing control substrate is normal, the new control substrate controls the existing motor using the drive current signal generated by the existing control substrate. On the other hand, when the existing control substrate is abnormal, the new control substrate generates a new driving current signal which can surely perform opening and closing control, thereby controlling the existing motor.

In addition, the new control board has a function of monitoring abnormality of the drive current signal generated in the existing control board. As a result, it is possible to easily realize a control system design for securing an equivalent performance before and after the number of times, and obtaining an appropriate door opening / closing control operation, when a certain number of doors are used because the door is unknown.

In addition, the new control board stores the pulse transition state in the normal opening / closing operation in advance when the existing control substrate is normal, and compares the pulse transition state at the time of actual opening / closing control with the stored value, Can be added.

Claims

And an opening control circuit for generating a driving current signal of a motor for opening and closing the elevator door by performing feedback control based on the information of the encoder in accordance with the door opening and closing command and controlling the opening and closing of the elevator door An elevator door opening /
Further comprising a new control board inserted between the existing control board and the motor,
Wherein the new control board comprises:
The first control current board monitors the first drive current signal output from the existing control board as a result of feedback control performed by the existing control board,
And outputs the first drive current signal as a drive current signal for driving and controlling the motor when the first drive current signal is determined to be normal,
By increasing the current signal value until a change in the number of motor pulses detected by the encoder occurs so that the motor can be rotated in the direction corresponding to the door opening and closing command when it is determined that the first driving current signal is abnormal, Wherein the elevator door generates a second driving current signal having a torque necessary for minimum operation of the elevator door and outputs the generated second driving current signal as a driving current signal for driving and controlling the motor.

The method according to claim 1,
Wherein the new control board comprises:
Monitoring whether or not the operation direction of the elevator door corresponding to the first driving current signal outputted from the existing control board and the door opening / closing instruction are matched, Monitoring whether or not it is within the range,
The first drive current signal is determined to be normal when the operation direction is matched with the door open / close command and the first drive current signal is within the allowable range, and in the other cases, And judges that the current signal is abnormal.

An elevator door opening / closing control for controlling the opening / closing of the elevator door, and a control unit for controlling the opening / closing of the elevator door by performing feedback control based on the information of the encoder, A method for repairing an elevator door opening / closing apparatus for performing an elevator door opening / closing operation by inserting a new control board between the existing control board and the motor, when the elevator door is unknown,
In the new control substrate,
A first step of reading out a first drive current signal outputted from said preliminary control board as a result of performing feedback control of said preliminary control board,
A second step of monitoring whether an operation direction of the elevator door corresponding to the first drive current signal read in the first step and a door opening /
Determines that the first driving current signal is normal if the operation direction is matched with the door opening / closing instruction based on the monitoring result in the second step, Is judged to be abnormal,
A fourth step of outputting the first drive current signal as a drive current signal for driving and controlling the motor when the first drive current signal is determined to be normal in the third step,
And when the first driving current signal is judged to be abnormal by the third step, until the motor rotation number detected by the encoder is changed so as to rotate the motor in the direction corresponding to the door opening / The elevator door generates a second driving current signal having a torque necessary for the elevator door to perform the minimum operation by increasing the current signal value and outputs the generated second driving current signal as a driving current signal for driving and controlling the motor And the eleventh door opening / closing device having the fifth step.