KR100340319B1 - Door command generation apparatus for elevator - Google Patents

Abstract

The present invention relates to a technique for generating the opening and closing command for all sections using only the speed pattern for some sections of the elevator door.

The object of the present invention is that the output signal of the rotary encoder for detecting the rotational speed of the door driving motor, and the limit switch (4A, 4B), (4C) for respectively detecting the open limit position and the closed limit position of the door (3) A position detection unit 5 for outputting relative position information P1 and absolute position information P2 of the door 3 on the basis of the output signal of? A basic speed pattern table (6) for storing a basic speed pattern of acceleration and deceleration for opening and closing the door (3); A speed pattern adjusting unit (7) for adjusting the open / deceleration pattern and the closed acceleration / deceleration pattern on the speed pattern table (8) by using the basic speed pattern of acceleration / deceleration stored in the basic speed pattern table (6); The speed command of the acceleration / deceleration section is generated based on the speed pattern table 8, and the speed command of the constant speed section is adaptively adapted to the width of the entrance and exit by using the value input from the user or the position information P1 and P2. A speed command generator 9 for outputting; It is achieved by the motor driving unit 10 for driving the door opening and closing motor in accordance with the speed command input from the speed command generation section (9).

Description

Door command generator of elevator {DOOR COMMAND GENERATION APPARATUS FOR ELEVATOR}

The present invention relates to a technique for controlling the opening and closing operation of the elevator door, and more particularly, to an elevator door command generation device suitable for generating the opening and closing command for all sections using only the speed pattern for a certain section of the door.

When the car of the elevator reaches the service floor in response to the hall call on each floor, the door driving unit opens the door according to the door command of the driving control panel and then closes the door again when all the passengers board.

In the conventional door opening and closing technique of an elevator, the elevator control panel stores a speed pattern having acceleration, constant speed, and deceleration sections in the form of a lookup table as shown in FIG. Thus, the door driver opened and closed the door.

As described above, in the elevator door opening and closing method according to the related art, the speed pattern for the entire section of the door is stored in the form of a fixed lookup table, and if necessary, the opening and closing command is referred to, and thus, a large memory capacity is required. There was a defect that was raised and could not cope adaptively to the change of the door opening and closing section.

Therefore, an object of the present invention is to store only the speed pattern for the acceleration and deceleration section of the door in the form of a look-up table, to generate a speed command for all sections by using it, and to cope adaptively to the entrance width by varying the constant speed section. The present invention provides an elevator door command generator.

1 is an explanatory diagram of a speed pattern of an elevator door according to the prior art;

Figure 2 is an embodiment block diagram of an elevator door command generation device according to the present invention.

Figure 3 is an exemplary view of adjusting the slope of the acceleration and deceleration pattern according to the present invention.

Figure 4 is an illustration of the maximum speed adjustment of the acceleration and deceleration pattern according to the present invention.

*** Description of the symbols for the main parts of the drawings ***

1: Main controller of the elevator 2: Command input unit

3: Door 4A-4C: Limit Switch

5: position detection unit 6: basic speed pattern table

7: Speed pattern adjusting unit 8: Speed pattern table

9: Speed command generator 10: Motor drive unit

11: door driver

FIG. 2 is a block diagram illustrating an exemplary embodiment of an elevator to which the door command generation device of the present invention is applied. As shown in FIG. 2, when the car arrives on a target floor, the door opening and closing command (OP) and CL are shown. An elevator main controller 1 for outputting the same; A command input unit (2) for processing the door open / close command (OP) and (CL) into a form suitable for receiving and processing the door; Limit switches 4A, 4B and 4C for respectively detecting the open limit position and the close limit position of the door 3; The relative position information P1 and the absolute position information P2 of the door 3 are based on the output signal of the rotary encoder mounted on the door driver 11 and the output signals of the limit switches 4A, 4B and 4C. A position detection unit 5 for outputting a); A basic speed pattern table (6) in the form of a ROM storing the basic speed pattern of acceleration and deceleration for opening and closing the door (3); A speed pattern adjusting unit (7) for adjusting the open / deceleration pattern and the closed acceleration / deceleration pattern on the speed pattern table (8) by using the basic speed pattern of acceleration / deceleration stored in the basic speed pattern table (6); In generating a speed command when an open command or a close command is input from the command input unit 2, the speed command of the acceleration / deceleration section is generated based on the speed pattern table 8, and the speed command of the constant speed section is a user. A speed command generation unit (9) adapted to adaptively output the entrance and exit width by using a value input from the position information or position information (P1) and (P2) input from the position detection unit (5); A motor driving part 10 for driving the door opening / closing motor according to the speed command inputted from the speed command generating part 9; It is composed of a door drive unit 11 composed of a pulley for opening and closing the door (3) and a rotary encoder for generating pulses corresponding to the number of revolutions of the motor by receiving power from the door opening and closing motor. When described in detail with reference to FIGS. 3 and 4 attached to the operation of the present invention configured as described above are as follows.

In the ROM pattern basic speed pattern table 6, speed patterns of acceleration and deceleration sections other than the constant speed section are stored in a table form. In the speed pattern adjusting unit 7, an initial state or a user's request to start supplying power When present, the open / deceleration pattern and the closed acceleration / deceleration pattern on the speed pattern table 8 are adjusted using the basic speed pattern of acceleration / deceleration stored in the basic speed pattern table 6.

3 shows an example of adjusting the inclination of the acceleration / deceleration pattern recorded in the speed pattern table 8 by introducing the concept of resampling. Here, when i = 1 to K, T_table = (int) n_table [i * 80 / k].

4 shows an example of adjusting the maximum speed of the acceleration / deceleration pattern recorded in the speed pattern table 8. Here, when i = 1 to K, acc_table [j] = acc_table [i] * scale_factor. However, scale_factor is a variable value according to user input.

On the other hand, when the vehicle starts to operate according to a platform call by a passenger waiting at a platform of each floor or a call of a passenger in a car, the command input unit 2 receives an elevator main controller 1 from the elevator main controller 1. The opening command OP of the door to be output is processed into a form suitable for processing and output to the speed command generation unit 9.

Accordingly, the speed command generation unit 9 generates an acceleration command on the basis of the open acceleration pattern on the speed pattern table 8, and then generates a speed command in the constant speed section, and then again decelerates the opening on the speed pattern table 8. A deceleration command is generated based on the degree pattern.

Here, when generating the speed command in the constant speed section, a separate constant speed section speed pattern is not used as in the related art, but is generated in such a manner that the maximum value of the open acceleration pattern is maintained for a predetermined time. The maintenance time is based on the value that the administrator inputs by measuring the doorway width or based on the value measured and stored on the basis of the position information P1 and P2 input from the position detection unit 5. Shall be.

As described above, the operation of measuring the entrance width by itself is sufficient once. In this measurement mode, the door 3 opens and closes at a low speed, and the limit switches 4A, 4B and 4C operate at the point where the opening operation is finished and the closing operation is finished. In addition, the rotary encoder installed in the door driving unit 11 while the door 3 is opened outputs a number of pulses corresponding to the rotational speed of the door opening and closing motor.

Therefore, the position detection unit 5, based on the output signal of the rotary encoder and the output signal of the limit switches (4A, 4B), (4C) relative position information (P1) and absolute position information (of the door 3) ( P2) is output, and the speed command unit 9 calculates and stores the doorway width based on these.

The motor driving unit 10 drives the door opening / closing motor according to the acceleration, constant speed, and deceleration command outputted from the speed command generation unit 9 through the above process, thereby opening the door 3.

On the other hand, when a predetermined time elapses after the door 3 is opened through the above process, the closing command CL of the door is output from the elevator main controller 1, and the closing operation principle at this time is the opening process. Same as the operation principle of.

As described in detail above, the present invention stores only the speed pattern of the acceleration / deceleration section of the door in the form of a look-up table, and generates a speed command for all sections by using it, and varies the constant speed section to adaptively adapt to the doorway width. By coping with this, less memory can be used, thereby reducing manufacturing costs.

Claims (3)

In the door opening / closing device of an elevator, the output signal of the rotary encoder detecting the rotational speed of the door driving motor, the limit switches 4A and 4B respectively detecting the opening limit position and the closing limit position of the door 3, ( A position detection unit 5 for outputting relative position information P1 and absolute position information P2 of the door 3 based on the output signal of 4C); A basic speed pattern table (6) for storing a basic speed pattern of acceleration and deceleration for opening and closing the door (3); A speed pattern adjusting unit (7) for adjusting the open / deceleration pattern and the closed acceleration / deceleration pattern on the speed pattern table (8) by using the basic speed pattern of acceleration / deceleration stored in the basic speed pattern table (6); The speed command is generated based on the speed pattern table 8, and the speed command in the constant speed section is adaptively output to the doorway width using a value input from the outside or a value measured by itself. Section 9; An elevator door command generation device, characterized in that it comprises a motor driving unit (10) for driving the door opening and closing motor in accordance with the speed command input from the speed command generation unit (9). The elevator door command generating device according to claim 1, wherein the speed pattern adjusting unit (7) is configured to adjust the acceleration / deceleration pattern. According to claim 1, wherein the speed command generation unit 9 to generate a speed command of the constant speed section based on the value input from the user or the value measured by the position information (P1), (P2) itself. An elevator door command generation device, characterized in that configured.