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Moving body speed detecting device and elevator using the same

A technology for driving devices and equipment, applied in the directions of transportation, packaging, elevators, etc., can solve the problems of increasing maintenance costs, spending purchase costs and setting costs, and achieve the effect of reducing maintenance costs.

Active Publication Date: 2008-07-30
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such prior art, since it is necessary to install a permanent mark on the entire moving path of the moving body, there is a problem that the purchase cost and installation cost of the mark need to be spent, and the maintenance cost will be increased.

Method used

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  • Moving body speed detecting device and elevator using the same
  • Moving body speed detecting device and elevator using the same
  • Moving body speed detecting device and elevator using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010]

An embodiment in which the speed of an elevator car which is one of moving objects is detected using a speed detection device mounted on the elevator car will be described below.

[0011]

figure 1 An elevator installation according to one embodiment of the present invention is shown. The elevator car 0105 and the counterweight 0107 are connected to each other through the main rope 0106, and the main rope 0106 is wound on the hoist 0108. The hoist 0108 drives the main rope 0106 according to the instruction of the control device 0111 . Thus, the elevator car 0105 and the counterweight 0107 move in the hoistway. The elevator car 0105 moves under the guidance of the guide rail 0102. The speed detection device 0112 provided on the elevator car 0105 moves as the elevator car moves up and down (0113). The output signal of the speed detection device 0112 is sent to the control device 0111, and when the control device 0111 determines that the speed is abnormal based on t...

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PUM

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Abstract

An elevator device for writing a non-permanent mark on a guide rail (0102) by using a writing device (1201) arranged on an elevator car (0105). The mark is detected by the reading device (1202-a, 1202-b) installed on the elevator car (0105), and the elevator car is detected according to the output signal of the reading device (1202-a, 1202-b) at this time. Velocity or acceleration or position of the car. Since there is no need to install speed detection components on the hoistways and guide rails along the entire moving passage of the elevator car, the purchase and installation costs of speed detection components do not occur, and maintenance and management costs can be reduced. Provided is an elevator system capable of detecting the speed, position, or acceleration of an elevator car without installing a speed detection member in a hoistway or on a guide rail.

Description

technical field [0001] The present invention relates to a moving body speed detection device, which can be realized by using a mobile body speed and position detection reference without installing a permanent mark or the like in the surrounding structures and moving passages that constitute a relative speed with the moving body. A detection method, a detection device and its application for detecting the relative speed between the moving body itself and the surrounding structure and moving channel. [0002] In particular, the invention can be adapted to detect the speed of an elevator car moving along guide rails within an elevator hoistway. Background technique [0003] As prior art, there is known a detection method that detects the speed and position of an elevator car as one of the moving bodies. Sensors in the car scan these persistent marks to detect the speed and position of the elevator car (see Patent Document 1). [0004] In addition, there is also known ...

Claims

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Application Information

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IPC IPC(8): B66B3/00B66B3/02B66B5/00
Inventor 井上秀树
Owner HITACHI LTD