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Electricity approach alarming method and device

An alarm device and near-electricity technology, which is applied to alarms, electrostatic field measurement, instruments, etc., can solve problems such as poor efficiency of near-electrical alarms, and achieve the effect of realizing function integration, improving operation efficiency, and realizing synchronous measurement.

Active Publication Date: 2016-02-10
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0005] In order to solve the problem of poor efficiency of proximity warning in the prior art, the present invention proposes a method and device for proximity warning

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Embodiment Construction

[0022] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0023] In order to solve the problem of poor efficiency of proximity warning in the prior art, the present invention provides a method and device for proximity warning.

[0024] Based on the principle of electric field measurement, the invention uses the electric field gradient method to measure the charged body in an all-round way. By setting the weight of the field strength of different parts of the human body, the effective conversion of the safety distance of multiple parts of the human body is realized, and automatic judgment and alarm of the safety distance are provided. The proximity alarm device of the present invention can provide an alarm according to the safe distance of charged bodies around the on-site staf...

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Abstract

The invention discloses an electricity approach alarming method and device. The method comprises that the electric field intensity at the boundary of the maximal safety distance of an electrified body to be measured is set as the threshold of the electric field intensity in advance; electric field signal of different parts of the human body are received, and the electric field intensities of the different parts of the human body are measured; electric field intensities of the different parts of the human body are corrected, and whether the corrected electrify field intensities are greater than the threshold of the electric field intensity is determined; and if the corrected electrify field intensities are greater than the threshold of the electric field intensity, alarm is raised against exceeding of the safety distance limit. According to the electricity approach alarming method, the electric field is corrected by setting the weight, and influence of human body induction and electric field sensors on the precision of the electric field measurement is eliminated; the different weights are set to measure the electric field intensities of the different parts of the human body and the distance to the electrified body, so that the field intensity and safe distance are measured at the same time; and functions of portable equipment are integrated, load of maintenance staff can be alleviated in the live-line work process, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of measuring the field strength of a high-voltage electrified body in the field of electric power, and in particular, relates to a method and device for near-electricity warning. Background technique [0002] In the operation of the power system, the operation and maintenance personnel undertake important tasks such as operation and maintenance management of important plants and lines, switching operations and accident handling, and are the executors who ensure the safety and economic operation of the power grid. With the continuous development of the power grid, the workload and complexity of power grid operation and maintenance are increasing, and the safety pressure on the operation and maintenance personnel is gradually increasing. [0003] In the process of routine operation and maintenance operations, although there are standards for the safety distance of operation and maintenance operations to regula...

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Application Information

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IPC IPC(8): G08B21/02G01R29/14
Inventor 林弘宇欧清海王伟周子冠李温静刘柱
Owner STATE GRID CORP OF CHINA
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