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A device for measuring the change of the electromagnetic field inside the display box

A display box and electromagnetic field technology, applied in the direction of measuring devices, measuring electrical variables, electromagnetic field characteristics, etc., can solve problems such as time lag and achieve stable playback effects

Active Publication Date: 2019-08-06
TIANJIN HAOTIAN ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the display screen fails, it will be time-lag to carry out maintenance processing.

Method used

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  • A device for measuring the change of the electromagnetic field inside the display box
  • A device for measuring the change of the electromagnetic field inside the display box
  • A device for measuring the change of the electromagnetic field inside the display box

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Embodiment Construction

[0034] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0035] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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PUM

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Abstract

The invention provides an apparatus used for measuring an electromagnetic field change in a display screen box. The apparatus comprises an orthogonal antenna, a signal processing module, a microprocessor, an abnormal display module and a remote alarm module. An output terminal of the orthogonal antenna is connected to an input terminal of the signal processing module in a signal connection mode. An output terminal of the signal processing module is connected to a signal input terminal of the microprocessor in the signal connection mode. A signal output terminal of the microprocessor is connected to the abnormal display module through a display control module in the signal connection mode. The signal output terminal of the microprocessor is connected to the remote alarm module in the signal connection mode. By using the apparatus used for measuring the electromagnetic field change in the display screen box, through monitoring the electromagnetic field change in the display screen box, prejudgment to a display screen fault is realized, which is convenient for a user to process a potential problem timely, and purposes of stable playing and safety protection are achieved.

Description

technical field [0001] The invention belongs to the technical field of LED display screen monitoring, and in particular relates to a device for measuring electromagnetic field changes inside a display screen box. Background technique [0002] The application of LED display screens is becoming more and more extensive, and users are paying more attention to the stability and safety issues during their use. At present, users mainly rely on human eyes to judge whether the LED display screen is faulty, and judge the status of the display screen by observing whether the display screen is black or flickering. [0003] When the display screen breaks down, it is already lagging behind to carry out maintenance processing. How to pre-judge the abnormality of the display screen content has become a concern of the user. [0004] Before some faults occur, especially in the case of power supply problems, problems with driving lamp boards and loose connectors, etc., the electromagnetic fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/08
CPCG01R29/0814G01R29/0878G01R29/0892
Inventor 俞浩黄凌碧严飞
Owner TIANJIN HAOTIAN ELECTRONICS TECH CO LTD