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Mobile object speed detecting device

A moving object, speed detection technology, applied in the direction of transportation and packaging, elevators, etc., can solve the problem of reducing the cost of detection signals, and achieve the effect of low cost

Inactive Publication Date: 2011-07-27
HITACHI LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Also, there is a need to reduce the cost required for detection signal processing

Method used

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Examples

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Embodiment Construction

[0070] Embodiments of the present invention will be described below with reference to the drawings.

[0071] figure 1 It is a configuration diagram showing the moving object speed detection device according to the embodiment of the present invention. Here, as a moving object, the elevator car 105 of the elevator installation 100 installed in a building will be described as an example. Elevator car 105 at figure 1 The direction of travel (lifting direction) 113 shown is shifted. There is a structure 117 in the lifting passage in the lifting direction 113 . Furthermore, the moving object speed detection device 200 of this embodiment (see figure 2) includes sensor column 201 and speed calculation processing means 116.

[0072] The elevator car 105 and the counterweight 107 are connected to each other by a main rope 106 which is coiled on a winch 108 . The hoist 108 drives the main rope 106 according to the instruction of the control device 111 . Thus, the elevator car 105...

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Abstract

Provided is a low-cost moving object velocity detection apparatus capable of detecting the velocity of moving objects. A moving object velocity detection apparatus (200) is provided with a component (207) and a velocity calculating device (116), wherein, the component (207) in installed at a moving object forming a moving object forming a relative velocity with the constitution object, and the velocity calculating device (116) calculating the velocity of the moving object according to the detection signal obtained from the component (207). The moving object includes a plurality of components (207) and sensor columns (201) provide with a specified spaced interval in the running direction. The velocity calculating device (116) can superpose the output of the sensor columns (201) in a prescribed mode, processes frequency analysis to the superposed result, and calculates the velocity of the moving object according to the frequency obtained by frequency analysis and the prescribed spaced distance of the detection apparatus.

Description

technical field [0001] The invention relates to a speed detection device for a moving object, in particular to a speed detection device for an elevator safety device. Background technique [0002] In recent years, in terms of detecting the speed of an elevator car (moving object), research has progressed in which a sensor is installed on the elevator car instead of the machine room to detect the speed. Since the influence of the rope can be eliminated when detecting the speed of the elevator car, in addition to obtaining direct data, there are various advantages such as being able to detect the speed when the rope is cut. In addition, since the speed detector adopts a non-contact method that does not require moving parts, reliability can be further improved. [0003] As a prior art, for example, in Japanese Patent Application Laid-Open No. 2006-52092 of Patent Document 1, a scheme for detecting the speed of the elevator car by a sensor device arranged on the side of the ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/04B66B3/02
Inventor 井上秀树岸川孝生大贯朗
Owner HITACHI LTD
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