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Precise color mixture driving control system and method of LED lamp

A technology of LED lamps and drive control, which is applied in energy-saving control technology, lamp circuit layout, light source, etc. It can solve problems such as color mixing deviation, failure to meet the needs of the stage and theater, and inconsistent parameters, so as to achieve reliable operation, automatic adjustment of lamp temperature, and operation Stable and reliable effect

Inactive Publication Date: 2017-05-24
BEIJING XINGGUANG FILM & TV EQUIP TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

However, at present, LED color mixing design faces two obstacles. One is that the parameters of each LED are inconsistent, and the other is that the performance of LED is closely related to the temperature of the PN junction. When the temperature of the PN junction in the LED chip increases, its luminous flux will be significantly attenuated, causing Color mixing deviation, and the higher the temperature, the more serious the deviation, which cannot meet the needs of the stage theater

Method used

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  • Precise color mixture driving control system and method of LED lamp

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Embodiment 1

[0042] The substrate temperature of each LED lamp is detected in real time by the temperature detector, and the received temperature information is sent to the LCD touch screen for display. The operator checks the display screen and compares the detected temperature information with the preset temperature information. When the detected temperature value is greater than the preset temperature value, the operator sends an operation instruction to the controller according to the operation table on the LCD touch screen display, and the control The device performs complex algorithm processing according to the operation instructions and sends a color-mixing control command to the corresponding LED lamp. The LED lamp changes the light-emitting state according to the color-mixing control command to achieve the purpose of color mixing to protect the LED from damage and prolong its service life. At the same time, a rotation control command is sent to the cooling fan, and the cooling fan ...

Embodiment 2

[0044]The substrate temperature of each LED lamp is detected in real time by the temperature detector, and the received temperature information is sent to the digital tube button interface board for display. The operator checks the display screen and compares the detected temperature information with the preset temperature information. When the detected temperature value is greater than the preset temperature value, the operator sends an operation instruction to the controller according to the operation table on the digital tube button interface board. The controller performs complex algorithm processing according to the operation instructions and then sends a color mixing control command to the corresponding LED lamps. The LED lamps change the light-emitting state according to the color mixing control commands to achieve the purpose of color mixing to protect the LED from damage and prolong its service life. At the same time, a rotation control command is sent to the cooling f...

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Abstract

The invention discloses a precise color mixture driving control system and method of an LED lamp. The system is composed of a controller, an LCD touch display screen, a nixie tube key interface board, a temperature detector, a cooling fan, and a color mixture control signal output terminal. With precise controlling, precision of color mixture is guaranteed; and the fan is used for cooling the lamp and the temperature detector is used for detecting the temperature of the lamp in real time to carry out temperature compensation and over-heat protection. Meanwhile, when the system is in a power-down state, current operation data can be stored; and the data can be invoked when the system is electrified again and the color light chromaticity and brightness of the lamp at previous power-down time can be restored. Moreover, two kinds of control ways can be realized in one lamp; remote control can be realized by an international standard DMX512 signal; and compatibility with local control modes of different lamps is high. The color mixture precision is high; the operation is stable and reliable; and demands of movie and television stages can be satisfied.

Description

technical field [0001] The invention relates to a precise color mixing drive control system and method for an LED lamp. Background technique [0002] Color mixing of LED lamps is one of the most widely used color mixing control methods for stage lighting. It uses LED light source, which has the advantages of energy saving and long life; at the same time, because of the small size of a single LED, it can be made into any shape, so it has good practicability; and the LED color is gorgeous, the luminous color is pure, and the spectral range is narrow. It can be mixed into colorful or white light through the three primary colors of red, green and blue, so it is widely used on the stage. However, at present, LED color mixing design faces two obstacles. One is that the parameters of each LED are inconsistent, and the other is that the performance of LED is closely related to the temperature of the PN junction. When the temperature of the PN junction in the LED chip increases, its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
CPCY02B20/40
Inventor 陈阔家王晶
Owner BEIJING XINGGUANG FILM & TV EQUIP TECH CO LTD
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