Communication method and system for elevator shaft or closed limited space

A limited space, elevator shaft technology, applied in the direction of distribution line transmission system, line transmission parts, instruments, etc., can solve the problem of elevator car signal attenuation, achieve the effect of improving coverage and solving signal attenuation

Inactive Publication Date: 2021-11-23
ZHONGBEI UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In view of this, the present invention provides a communication method and system for elevator shafts or confined spaces, using power carrier communication technology to solve the problem of elevator car signal attenuation, and at the same time by determining the distance between the equipment end and the machine room end , to predict the output power and then adjust the size of the output power to improve the coverage, so that the elevator car can receive the signal

Method used

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  • Communication method and system for elevator shaft or closed limited space
  • Communication method and system for elevator shaft or closed limited space
  • Communication method and system for elevator shaft or closed limited space

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Embodiment Construction

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0058] The embodiment of the present invention discloses a communication method for an elevator shaft or a confined space, such as figure 1 As shown, the specific steps are as follows:

[0059] S1 The device end obtains the first signal through the power line, and adjusts the output power of the first signal;

[0060] S2 sends the power-adjusted first signal.

[0061] In order to further optimize the above technical solution, in S1, specific steps for obtain...

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Abstract

The invention discloses a communication method and system for an elevator shaft or a closed limited space, and is applied to the technical field of mobile communication. An equipment end obtains a first signal through a power line, adjusts the output power of the first signal, and sends the first signal after power adjustment. According to the communication method and system for the elevator shaft or the closed limited space, the problem of signal attenuation of an elevator car is solved through the power line carrier communication technology. Meanwhile, the output power is adjusted by determining the distance between the equipment end and the machine room end and predicting the output power, the coverage range is widened. Signals can be received in the elevator car.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, and more specifically relates to a communication method and system for an elevator shaft or a confined space. Background technique [0002] With the rapid development of economic construction, the appearance of elevators has greatly brought convenience to people's lives, whether it is for car elevators in high-rise residences or office buildings, or fixed lifting equipment in mines. [0003] However, due to the environment in which the elevator is used, the walls of the elevator shaft are generally thick, and most of the elevator cars are made of metal, which seriously attenuates the communication signal, and the signal of the mobile phone in the elevator is weak or even has no signal. [0004] Therefore, how to provide a communication method and system that solves the problems of low coverage and signal shielding is an urgent problem to be solved by those skilled in the art....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54H04B3/04G06K9/62
CPCH04B3/54H04B3/04G06F18/23
Inventor 寇彦飞于瑞恩郭九江李菁菁
Owner ZHONGBEI UNIV
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