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Elevator optical fiber communication method, system and device

An optical fiber communication and elevator technology, applied in the elevator field, can solve problems such as poor communication stability, and achieve the effects of improving safety, improving stability, and improving safety and stability.

Active Publication Date: 2018-09-04
HITACHI ELEVATOR CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to provide an elevator optical fiber communication method, system and equipment for the problem of poor communication stability of the traditional elevator communication system

Method used

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  • Elevator optical fiber communication method, system and device
  • Elevator optical fiber communication method, system and device
  • Elevator optical fiber communication method, system and device

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Embodiment Construction

[0068] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0069] It should be noted that the term "first\second" involved in this embodiment of the present invention is only used to distinguish similar objects, and does not represent a specific ordering of objects. Understandably, "first\second" is allowed The specific order or sequence may be interchanged under certain circumstances. It is to be understood that the terms "first\second" are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of practice in sequences other than those illustrated or described her...

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Abstract

The invention relates to an elevator optical fiber communication method, system and device, and belongs to the technical field of elevators. The method comprises the following steps: obtaining operation state information indicating whether an elevator is currently safely running, and transmission state information of an optical fiber medium communication channel between an elevator controller andan elevator cab, selecting an appropriate signal transmission mode according to different states of the two components, and performing redundant transmission on an elevator communication signal in the optical fiber medium communication channel in the selected signal transmission mode. The signal transmission mode can be selected and adjusted by using the transmission state information of the optical fiber medium communication channel and the operation state information of the elevator, the important communication signal is repeatedly forwarded in the optical fiber medium communication channelin an appropriate manner to realize the redundant transmission of the important signal, and the security and stability of signal transmission at a limited communication rate are improved.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to an elevator optical fiber communication method, system and equipment. Background technique [0002] At present, there are many applications of communication systems in the field of elevators, among which general industrial communication technology is the most widely used in elevator control systems, such as CAN (Controller Area Network, controller area network) technology, RS485 technology, etc., due to the current technology In mainstream applications, the elevator control system basically adopts the motor drive method of frequency conversion modulation. The electromagnetic interference brought by the frequency conversion modulation system is very large, which often affects the communication quality of the communication system. At the same time, the communication distance between the control system and the car is relatively long. In such a harsh working environment with high e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04B3/60H04B10/25B66B1/34
CPCB66B1/3446H04B3/60H04L1/189H04B10/25891
Inventor 赖志鹏郭志海王文俊江新福
Owner HITACHI ELEVATOR CHINA