Lamp dot matrix control device and method and LED stage lamp

A technology of a control device and a control method, which is applied in the direction of energy-saving control technology, the use of semiconductor lamps, electrical components, etc., can solve the problems of increased cost of point control functions and the like

Active Publication Date: 2020-12-04
GUANGZHOU FINEART LIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention provides a lamp dot matrix control device and method, and LED stage lamps to solve the problem of increased cost of point control functions caused by the use of multiple MCU microprocessors

Method used

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  • Lamp dot matrix control device and method and LED stage lamp
  • Lamp dot matrix control device and method and LED stage lamp
  • Lamp dot matrix control device and method and LED stage lamp

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Embodiment Construction

[0033] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0034] See figure 1 , The embodiment of the present invention provides a lamp dot matrix control device. The lamp dot matrix control device includes a processing module 100 , a filling module 200 , a triggering module 300 and a direct memory access module 400 .

[0035] The processi...

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Abstract

The invention relates to a lamp dot matrix control device and method and an LED stage lamp. The lamp dot matrix control device comprises a processing module, a filling module, a triggering module anda direct memory access module. The processing module is used for receiving channel function data sent by a light console and calculating each PWM output value according to the channel function data; the channel function data comprises a lamp channel function and a channel value; the filling module is electrically connected with the processing module and is used for converting the PWM output valueinto binary data and storing the binary data in a memory to form a memory array in the memory; the triggering module is used for periodically generating trigger signals; and the direct memory access module is electrically connected with the triggering module and is used for receiving a trigger signal and transmitting the memory array to an external GPIO interface according to the triggering signal, so that a single MCU microprocessor can output a plurality of PWM signal circuits, and meanwhile, the use quantity and the production cost of the MCU microprocessor are reduced.

Description

technical field [0001] The invention relates to the technical field of lamp control, in particular to a lamp dot matrix control device and method, and an LED stage lamp. Background technique [0002] At present, most lighting manufacturers will use multiple Microcontroller Units (MCU) to output PWM to realize the point control function of each lamp bead in the pixel (PIXIE) series lamps. An MCU microprocessor usually has 4 to 6 timers, that is to say, it can generate up to 24 PWM signals, and some timers are also used for other purposes, such as system timing or input capture function, which can be used The PWM signal is very limited. In addition, this will not only increase the number and cost of MCU microprocessors used, but also have communication and synchronization problems between multiple MCU microprocessors, and the corresponding control / driver software also needs to do a lot of synchronization optimization , leading to an increase in cost. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B45/325H05B45/37H05B47/155H05B47/16H05B47/165H05B47/17H05B47/18
CPCH05B45/325H05B45/37H05B47/155H05B47/16H05B47/165H05B47/17H05B47/18Y02B20/40Y02B20/30
Inventor 刘建华张昭荣江炯同王惠均
Owner GUANGZHOU FINEART LIGHTING
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