WO2004103878A1

WO2004103878A1 - Elevator control device

Info

Publication number: WO2004103878A1
Application number: PCT/JP2003/006283
Authority: WO
Inventors: Masashi Yonemoto
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2003-05-20
Filing date: 2003-05-20
Publication date: 2004-12-02
Also published as: JPWO2004103878A1

Abstract

An elevator control device includes: running speed instruction means for generating an elevator running speed instruction; control means for inverter-controlling the elevator according to the running speed instruction; running speed instruction judgment means for monitoring the running speed instruction and judging whether the instructed speed of the running speed instruction is a predetermined speed; fluctuation component generation means for generating a fluctuation component waveform having a fluctuation characteristic when the instructed speed is the predetermined speed; and addition means for adding the fluctuation component waveform to the running speed instruction. When the instructed speed is the predetermined speed, the control means inverter-controls the elevator according to the running speed instruction added by the fluctuation component waveform.

Description

Specification

Elevator control system

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for an elevator, and more particularly to a control device for an elevator that adds a healing vibration effect to a car when the elevator travels.

Background art

A conventional speed command circuit generates a trapezoidal wave by receiving a rectangular wave reference command signal as described in, for example, Japanese Patent Application Laid-Open No. 52-63582, and generates a reference command by the trapezoidal wave. A trapezoidal acceleration signal is formed by limiting the signal, and the acceleration signal is integrated to output a speed command signal to control the acceleration of the entire elevator. As a result, the running time of the erepeater is as short as possible and the riding comfort is improved.

However, with the conventional speed command circuit, although the ride comfort is improved, the inside of the car becomes too quiet when driving in an elevator, and when riding with an unknown passenger, the passenger feels uncomfortable and awkward. There was.

Disclosure of the invention

The present invention has been made in order to solve the above-described problems, and an object of the present invention is to prevent a passenger from feeling uncomfortable and awkward even when riding with an unknown passenger. It is intended to obtain a control device that can be operated every day. According to the present invention, the control device for the entire elevator includes a traveling speed command means for generating a traveling speed command for the entire elevator, and a controller for controlling the entire elevator based on the traveling speed command.

—Equipped with control means for evening control. Further, the control device for the elevator every night monitors the traveling speed command and determines whether the command speed of the traveling speed command is a predetermined speed or not. In the case of a speed, there are provided a fluctuation component generating means for generating a fluctuation component waveform having fluctuation characteristics, and an adding means for adding the fluctuation component waveform to the traveling speed command. When the command speed is a predetermined speed, the control means controls the elevator every time based on the running speed command to which the fluctuation component waveform is added by the adding means. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a diagram illustrating an entire system of an elevator according to a first embodiment of the present invention. FIG. 2 is a diagram showing output signals of a traveling speed command unit, a fluctuation component generating unit, and an adding unit in the control device of the erepeater according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a Silvinsky gasket figure used when the flux calculating means of the control device for the elevator in accordance with the first embodiment of the present invention extracts a fluctuation component waveform.

FIG. 4 is a diagram showing a fluctuation component waveform extracted by the fractal calculation means of the control device for the entire elevator according to the first embodiment of the present invention.

FIG. 5 is a diagram illustrating a hardware configuration of the control device for the entire elevator according to the first embodiment of the present invention.

FIG. 6 is a flowchart showing the operation of the CPU of the control device for the entire elevator according to the first embodiment of the present invention.

FIG. 7 is a diagram showing an overall system for an entire element according to a second embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Example 1

In FIG. 1, AC power supply 1 supplies AC power to Comparator 1 and Comparator 1 converts AC to DC. The inverter 3 converts the direct current from the converter 2 into an alternating current and outputs it to the alternating current motor 4 based on a command from the control device 10 of the elevator. The AC motor 4 is driven based on the output of the inverter 3 and raises and lowers the car 6 via the sheave 5 of the hoist. The car 6 is connected to a counterweight 8 via a rope 7 wrapped around a sheave 5.

The control device 10 of the elevator includes a traveling speed command means 11, a traveling speed command determining means 12, a fluctuation component generating means 13, an adding means 14, and a control means 15. The traveling speed command means 11 generates a traveling speed command Vp0 for the elevator. This traveling speed command V p 0 is shown in FIG. According to this traveling speed command Vp0, the elevator is accelerated from time 0 to t1, accelerated at full speed from time t1 to t2, and decelerated and stopped from time t2. I do. The above “full speed” refers to a constant speed from time t1 to time t2. The traveling speed command determining means 12 monitors the traveling speed command Vp 0 from the traveling speed command means 11 and determines the command speed of the traveling speed command Vp 0.

The fluctuation component generation means 13 has a random number generation means 131, a fractal calculation means 132, and a waveform shaping means 133, and generates a fluctuation component waveform Vf0.

The random number generating means 131 generates a random number R continuously. This random number R is a so-called pseudo random number taking a value of 0 or more and less than 1.

The fractal operation unit 132 performs a fractal operation based on the random number R generated by the random number generation unit 131, and extracts a fluctuation component waveform V f.

FIG. 3 shows a “Sylvinsky gasket” figure as a fractal used by the fractal calculation means 132 to extract the fluctuation component waveform Vf. This figure is drawn using three reduced mapping functions. The fractal calculation means 132 calculates a coordinate value based on the random number R generated by the random number generation means 131, using one reduced mapping function selected from the above three reduced mapping functions. Then, the fraction calculating means 132 repeats the process of drawing the above calculation result on the XY coordinates tens of thousands of times. Note that the initial values of the XY coordinates are set in advance.

The fractal operation means 132 extracts a time series signal composed of the X coordinate values of the figure shown in FIG. This extracted signal is the fluctuation component waveform Vf. Figure 4 shows the fluctuation component and waveform Vf. This fluctuation component waveform Vf includes 1 / f (frequency) fluctuation. This l / f fluctuation is named because its frequency component is reduced to one-tenth when the frequency is increased ten times, and is said to have an effect of healing the human body.

• The waveform shaping unit 133 smoothes the fluctuation component waveform Vf extracted by the fractal calculation unit 132. FIG. 2B shows the fluctuation component waveform Vf 0 after the smoothing.

The fluctuation component waveform Vf 0 is obtained by smoothly shaping the fluctuation component waveform Vf. The adding unit 14 adds the fluctuation waveform Vf 0 to the traveling speed command Vp 0.

The control means 15 controls the inverter 3 to control the elevator every one time.

Ό

In FIG. 5, a CPU (Central Processing Unit) 16 is via path 17: OM1 8 and RAM 19 are all connected. The ROM 18 stores a control program for operating the CPU 16. The RAMI 9 stores calculation data such as the above-described traveling speed command Vp0, traveling speed command Vpl, random number R, and fluctuation component waveform Vf. The CPU 16, the ROM 18, and the RAM 19 function as the traveling speed command unit 11, the traveling speed command determining unit 12, the fluctuation component generating unit 13, the adding unit 14, and the control unit 15.

Next, an operation in which the CPU 16 of the control device 10 of the present invention processes according to the control program of the ROM 18 will be described with reference to FIG.

First, in step 100, the traveling speed command Vp 0 is generated by the traveling speed commanding means 11 every night.

Next, in step 101, the traveling speed command determining means 12 constantly monitors the traveling speed command Vp0 generated by the traveling speed commanding means 11, and determines whether the commanded speed of the traveling speed command Vp0 is full speed. I do.

If it is determined in step 101 that the command speed of the traveling speed command Vp 0 is not the full speed, the adding means 14 does not add the fluctuation component waveform V f 0 to the traveling speed command VpO, and the control means 15 Inverter 3 is controlled based on the speed command VpO. As a result, the AC motor 4 is driven based on the output value of the inverter 3 and the car 6 is moved up and down.

On the other hand, if the command speed of the traveling speed command Vp 0 is full speed in step 101, the random number generating means 131 generates a random number R (step 102).

Next, in step 103, the fractal calculation means 132 performs a fractal calculation based on the random number R to extract a fluctuation component waveform Vf.

Next, in step 104, the waveform shaping means 133 smoothes the fluctuation 'component waveform Vf extracted by the fractal calculating means 132.

Next, in step 105, the adding means 14 adds the fluctuation component waveform Vf 0 smoothed by the waveform shaping means 133 to the traveling speed command Vp 0 generated by the traveling speed command means 11. Then, the control means 15 controls the chamber 3 based on the traveling speed command Vp 1 to which the fluctuation component waveform Vf 0 has been added by the adding means 14. As a result, AC motor 4 is driven based on the output value of inverter 3 and l / f Vibration equivalent to rags is applied to the car 6 and the car 6 moves up and down.

Then, after that, the CPU 16 of the control device 10 of the entire elevator repeatedly executes the processing of the above steps 100 to 105. In this way, the traveling speed command V p O generated by the traveling speed command means 11 includes a fluctuation component waveform V f 0 from time t 1 to t 2 as shown in FIG. 2 (c). Superimposed. As a result, between time t1 and t2, the fluctuation vibration having a healing effect on the human body is applied to the car 6, and the car 6 moves up and down.

As described above, according to the first embodiment, the traveling speed command means 11 for generating the traveling speed command Vp 0 and the elevator control every day based on the traveling speed command VpO. In addition, the control device 10 for controlling the operation of the elevator, which includes a control means 15 for monitoring the running speed, further monitors the running speed command Vp0 and determines whether or not the running speed command Vp0 is at full speed Traveling speed command judging means 1 and 2, a fluctuation component generating means 13 for generating a fluctuation component waveform V f 0 when the above command speed is full speed, and a fluctuation component waveform V f O to the traveling speed command V p O. The control means 15 includes an adding means 14 for adding, and when the command speed is the full speed, the control means 15 performs an entire operation based on the traveling speed command Vp1 to which the fluctuation component waveform Vf0 is added. Inva overnight control. For this reason, when the elevator 1 is traveling, vibration corresponding to the fluctuation component waveform Vf0 is added to the car 6, and the passenger can feel comfortable. Therefore, even if an unknown passenger rides on the elevator, the passenger is less likely to feel uncomfortable or awkward. Also, when the command speed of the traveling speed command Vp0 is the full speed, the wiggle vibration is applied to the car 6, so that the passenger can surely feel comfortable at the full speed.

Example 2.

In FIG. 7, the control device 1 OA for the entire elevator is provided with a fluctuation amount adjusting means for adjusting the fluctuation amount of the fluctuation component waveform V f0 to the control device 10 for the entire elevator according to the first embodiment. 16 is added. Other configurations are the same as those in the first embodiment. In the case of the second embodiment, the fluctuation amount adjusting means 16 adjusts the fluctuation amount (gain) of the fluctuation component waveform V f0 smoothed by the waveform shaping means 133. This makes it possible to increase or decrease the amplitude of the fluctuation component waveform Vf0. Then, the adding means 14 includes a fluctuation component adjusted by the fluctuation amount adjusting means 16. The control unit 15 adds the waveform Vf1 to the traveling speed command Vp0, and the control unit 15 outputs the signal based on the traveling speed command Vp2 to which the fluctuation component waveform Vf1 is added by the adding unit 14. Control 3 to raise and lower car 6.

In this way, the vibration applied to the car 6 can be adjusted and the optimum vibration can be applied to the car 6, so that passengers can feel more comfortable. In each of the first and second embodiments, the case where vibration corresponding to the fluctuation component waveform is added to the car 6 when the command speed (predetermined speed) of the speed traveling command Vp0 is full speed has been described. It is not limited to this. For example, the vibration corresponding to the fluctuation component waveform may be added to the car 6 when the command speed of the traveling speed command Vp0 is accelerating or decelerating. Even in this case, passengers can feel comfortable when accelerating or decelerating.

Further, in each of the first and second embodiments, the case where the fractal calculating means 13 2 uses the `` silpinski gasket '' as the fractal when extracting the fluctuation component waveform V f has been described. A fractal such as a fractal Brown function may be used. Furthermore, when generating the fluctuation component waveform, the fluctuation component generation means 13 may generate the fluctuation component waveform using chaos instead of the fractal in the fractal calculation means 13 2.

Industrial potential

As described above, the control apparatus for an elevator system according to the present invention is suitable for realizing an elevator system that allows passengers to feel comfortable. '

Claims

The scope of the claims

1. A control device for an elevator, comprising: a traveling speed command means for generating a traveling speed command for an elevator; and a control means for controlling the elevator every one hour based on the traveling speed command. A traveling speed command determining unit that monitors a traveling speed command and determines whether the command speed of the traveling speed command is a predetermined speed;

A fluctuation component generating means for generating a fluctuation component waveform having fluctuation characteristics when the command speed is a predetermined speed;

An adding unit that adds the fluctuation component waveform to the traveling speed command, wherein the control unit includes:

When the command speed is a predetermined speed, the elevator is configured to perform inver / night control based on a traveling speed command to which the fluctuation component waveform has been added by the adding means. Control device.

2. The control device according to claim 1, wherein the predetermined speed is a full speed.

3. A fluctuation amount adjusting means for adjusting the fluctuation amount of the fluctuation component waveform generated by the fluctuation component generating means,

The adding means,

2. The control device according to claim 1, wherein the fluctuation component waveform, the fluctuation amount of which is adjusted by the fluctuation amount adjusting means, is added to the traveling speed command.