Control system of lift door motor and control method thereof

A motor control and elevator door technology, which is applied in the field of elevator door motor control and motor control system, can solve the problems of inaccurate control and inaccurate speed curve, and achieve the effect of high control accuracy and precise speed curve

Active Publication Date: 2012-09-19
GREE ELECTRIC APPLIANCES INC +4
View PDF7 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing elevator door control technology often calculates the door opening speed curve or door closing speed curve by drawing the

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control system of lift door motor and control method thereof
  • Control system of lift door motor and control method thereof
  • Control system of lift door motor and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The elevator door motor control system of the present invention is to control the motor of the elevator door, see figure 1 , the control system has a microcontroller 10, which may be a single-chip microcomputer or a DSP (Digital Signal Processor) and other devices. The control system is also provided with a memory 16 for storing data related to the elevator doors, such as calculated door width data of the elevator doors, or drawn door opening speed curves and door closing speed curves. Of course, the memory 16 is not necessarily an external memory, but may also be a built-in memory of the microcontroller 10 .

[0028] The motor 15 receives the PWM control signal output by the microcontroller 10 and works under the drive of the PWM control signal. The motor 15 has a stator and a rotor, and the rotor is located in the stator and rotates under the force of the magnetic field. The rotor has a rotor shaft, and a magnet is installed on the shaft end of the rotor shaft. Pref...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a control system of a lift door motor and a control method thereof. The control system comprises a microcontroller and an electromagnetic encoder, wherein the microcontroller is provided with a door width detection module, a door-opening control module and a door-closing control module; the door width detection module reads an initial signal of the electromagnetic encoder and calculates the number of rotation turns of a rotor shaft after receiving a door width detection signal, and reads a real-time signal of the electromagnetic encoder, calculates the width of a lift door and saves the width in a memory after receiving a door opening limit signal; the door-opening control module controls the opening of the lift door, calculates first real-time door width data of the lift door and draws a door opening speed curve; and the door-closing control module controls the lift door to be closed, calculates second real-time door width data of the lift door and draws a door closing speed curve under the condition of meeting door closing requirements. The control method is used for controlling the lift door motor by utilizing the control system. The invention can carry out door width detection on the lift door, draws the speed curve in real time and more exactly controls the lift door motor.

Description

technical field [0001] The invention relates to the field of motor control, in particular to a motor control system applied to elevator doors and a control method for elevator door motors. Background technique [0002] The elevator car door is usually driven by a servo motor to open and close, so it is necessary to precisely control the elevator door motor to realize the fast and accurate opening and closing of the elevator door. In the past, the control of the elevator door was realized by travel switches or speed measuring machines, but due to its single operating parameters, many mechanical actions, and low operating reliability, it has been unable to meet the control requirements of modern motors. Therefore, the current elevator door motor control usually uses power electronics technology to control the operation of the motor by using a microcontroller such as a single-chip microcomputer. [0003] The control of the elevator door motor is mainly to control the rotation ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B66B13/14
Inventor 胡玉新王成粮
Owner GREE ELECTRIC APPLIANCES INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap