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A system and a method for double-cache calibration of DMX512 data of a stage lamp

A DMX512, double-buffering technology is applied in the system field of the double-buffer calibration DMX512 data of stage lamps, which can solve the problems of unreliable data transmission, affecting the efficiency of stage lamps and lanterns processing data, etc.

Active Publication Date: 2019-03-22
GUANGZHOU PENGLIN LIGHTING CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the DMX512 protocol is a one-way protocol for transmitting data streams, the data transmission is unreliable
[0004] Most of the existing methods for judging DMX512 data are to reduce the error rate by judging multiple data packets, which will affect the efficiency of data processing by stage lighting

Method used

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  • A system and a method for double-cache calibration of DMX512 data of a stage lamp
  • A system and a method for double-cache calibration of DMX512 data of a stage lamp

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Embodiment Construction

[0023] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

[0024] see figure 1 , the present invention provides a system for double-buffering DMX512 data calibration of stage lamps and lanterns, including:

[0025] Receiving device: used to receive DMX512 data packets of DMX512 interface;

[0026] Memory: used to define the buffer area, which stores DMX512 data packets;

[0027] Processor: used to output and process DMX512 data;

[0028] Judger: used to compare and judge DMX512 data packets and DMX512 protocol.

[0029] The...

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PUM

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Abstract

The invention discloses a system and a method for double-cache calibration of DMX512 data of a stage lamp. The system comprises a receiving device, a memory, a processor, and a judger. The method comprises the steps of receiving data from a DMX512 interface; defining two cache regions for receiving data, BUFF1 and BUFF2, wherein the BUFF1 receives channel data needed by a stage lamp, and the BUFF2receives a DMX512 data packet; comparing the DMX512 data packet received by the BUFF2 with a DMX512 protocol; and if the DMX512 data packet received by the BUFF2 is consistent with the DMX512 protocol, outputting the channel data of the BUFF1 to the stage lamp, otherwise, deleting the channel data of the BUFF1 and re-receiving data. According to the invention, a reliable data stream can be obtained through single judgment in unreliable transmission, so that the stage lamp can obtain a correct channel value required by the lamp in unidirectional DMX512 data.

Description

technical field [0001] The invention relates to stage light data processing technology, in particular to a system and method for double-buffering and calibrating DMX512 data of stage light. Background technique [0002] The DMX512 protocol was developed by USITT (United States Society of Theater Technology) to control dimmers with a standard digital interface from the console. At present, all kinds of stage effect lamps, dimming controllers and smart lamps including smart lamps fully support the DMX512 protocol. Dimming lamps have fully realized digital control, and on this basis, they are gradually becoming computerized and networked. [0003] In the control technology of stage lighting equipment, the DMX512 protocol is generally used to control lighting equipment. However, because the DMX512 protocol is a one-way protocol for transmitting data streams, the data transmission is unreliable. [0004] Most of the existing methods for judging DMX512 data are to reduce the err...

Claims

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Application Information

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IPC IPC(8): H05B37/02
CPCH05B47/10
Inventor 陈小聪
Owner GUANGZHOU PENGLIN LIGHTING CO LTD
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