Unlock instant, AI-driven research and patent intelligence for your innovation.

Elevator and rescue operation control method

An elevator and controller technology, which is applied in the field of elevator and rescue operation control, can solve the problem of generating time for passengers to wait for rescue, and achieve the effect of preventing rapid acceleration

Active Publication Date: 2018-10-23
HITACHI LTD
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, the above method is carried out after waiting for the arrival of the maintenance workers, so there will be time for passengers to wait for rescue

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
  • Elevator and rescue operation control method
  • Elevator and rescue operation control method
  • Elevator and rescue operation control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] figure 1 It is a block diagram showing the overall structure of the elevator according to the embodiment. The movement of the car 104 of the elevator is controlled by the elevator controller 100 . The elevator controller 100 includes a braking force control unit 20 in addition to the elevator control unit 2 that performs operation control of the elevator.

[0024] The car 104 moves between floors within a hoistway formed in the building. Although in figure 1 Although not shown in the drawing, the car 104 is connected to a counterweight for balancing with the car 104 via slings. The car 104 is provided with a car side door (not shown) that engages with an elevator hall side door (not shown) to open and close. The movement of the car 104 is performed by driving the sheave by the motor 103 . Driving electric power is supplied to the motor 103 through the power converter 101 . The power converter 101 outputs electric power for controlling the motor according to a car ...

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 present invention provides an elevator and rescue operation control method, preventing sudden acceleration from occurring when movement of an elevator car is initiated in a brake releasing operation. This elevator comprises: an elevator car; a brake device that has a solenoid coil and brakes movement of the elevator car; a brake power supply; a movement speed detection means that detects the movement speed of the elevator car; and a controller that controls a current supplied from the brake power supply in accordance with the movement speed of the elevator car detected by the movement speed detection means. In the case where the elevator car is stopped, the controller transmits a command to the brake power supply to cause a current supplied to the solenoid coil of the brake device (brake current i) to increase by a prescribed amount every time a prescribed period of time elapses, and in the case where a change in the speed of the elevator car has been detected by the movement speeddetection means, the controller transmits a command to the brake power supply to stop increasing the current supplied to the solenoid coil of the brake device (brake current i).

Description

technical field [0001] The invention relates to an elevator and a rescue operation control method. Background technique [0002] In a conventional elevator, a motor is rotated by a power converter, and a rope is moved up and down via a pulley connected to the motor, whereby a car connected to the rope can be raised and lowered. When a part of the drive system such as the power converter, the motor, and the encoder connected to the motor fails, the elevator stops. If the position where the car of the elevator stops is between floors and there are passengers in the car at this time, the passenger will be trapped in the car. In this state, the car does not move, so the safety of the passengers can be ensured, but the passengers feel uncomfortable. [0003] As a method of rescuing passengers trapped due to such a failure of the drive system, it is generally performed by maintenance workers. In particular, when the weight in the car and the counterweight are unbalanced, by man...

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): B66B5/02
CPCB66B5/02
Inventor 井上真辅照沼智明大沼直人加藤可奈子岩本晃高山直树薮内达志
Owner HITACHI LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com