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LED string lamp operation state monitoring method and system

A technology of running status and string lights, applied in the field of monitoring the running status of LED string lights, can solve the problems of limiting the number of LEDs, a large number of electronic measuring equipment, etc., and achieve the effect of accurate judgment

Inactive Publication Date: 2015-12-09
PHICOMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even so temperature variations and normal LED forward voltage variations still limit the number of LEDs
The disadvantage of this method is that if the number of LED strings exceeds four, it will require a lot of electronic measuring equipment

Method used

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  • LED string lamp operation state monitoring method and system
  • LED string lamp operation state monitoring method and system

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Embodiment Construction

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. The invention is exemplary and should not be construed as limiting the invention. The following description describes numerous specific details to facilitate an understanding of the present invention. However, in certain instances, well-known or conventional details are not described in order to satisfy the requirement of conciseness of the description.

[0045] refer to figure 1 As shown, a method for monitoring the operating status of LED string lights, comprising the following steps:

[0046] S1. Apply a calibration current Ion to the standard LED string lights, record the voltage Vcal, current Ical and temperature Tjcal of the LED string lights, and obtain the LED current-voltage curve, temperature-voltage rela...

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Abstract

The invention provides an LED string lamp operation state monitoring method and system. The device comprises a processor and LED string lamps. A power supply unit, a temperature sensor, a voltage measuring circuit and a current measuring circuit are respectively connected between the processor and the LED string lamps. The processor is also connected with a memory, input and output equipment and a timer respectively. Influence of current change, temperature change and time change on voltage is added in voltage detection so that judgment is more accurate in LED string lamp fault judgment.

Description

technical field [0001] The present invention relates to the technical field of monitoring LED string lights, in particular to a method and system for monitoring the running state of LED string lights. Background technique [0002] As a new type of light source with low power consumption, LED lights have become more and more popular recently. It is widely used in many fields. However, in some fields such as aviation lighting, there are strict regulations on the brightness of illumination light: in some equipment, the brightness of light must meet the minimum safety standard. In some other fields, customers often stipulate that LED lights must reach a certain intensity. Therefore, it is necessary for us to know: In a specific LED light source, are all these light-emitting diodes working normally or how many of them are working normally? [0003] In the implementation of high-power LED general lighting, in order to simplify the circuit and reduce the number of power supply d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/44G01M11/00
Inventor 张一龙
Owner PHICOMM (SHANGHAI) CO LTD
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