Projector and its control system based on data transmission protocol of lighting control

Abstract

A projector based on a light control data transmission protocol is disclosed, wherein the light control data transmission protocol is DMX512, or RDM, or ArtNet. The projector comprises an optical component, a projector driving board and a serial control circuit board, wherein, the serial control circuit board comprises a first serial interface, a serial control processing module and a second serial interface. The serial control processing module, by means of the first serial data communication connection, the control signal sent by the light console can be obtained, the control signal is processed into a signal format that can be directly applied by the projector driving board, and sent to the projector driving board through the second serial interface, thereby controlling the optical component to respond to the control signal. The invention achieves the technical effect that the original structure of the existing projector is not changed and a light control signal interface is added for the projector.

Description

technical field [0001] The present invention relates to the technical field of electric light source control (H05B 35 / 00) in which different luminous types are combined with each other, and in particular to a projector and its control system based on a light control data transmission protocol. Background technique [0002] At present, projection is widely used, such as home, business, industry, factory, movie theater and so on. But the current projection equipment only has analog input interface and digital input interface. Its basic circuit structure is image control circuit and projection equipment. The input analog signal and digital signal are output to projection equipment after being processed by image control circuit. Projection equipment will It is projected onto the screen or background wall, and its function is relatively single. [0003] The current projectors are widely used in homes, offices, schools and entertainment places. They use the HMDI control method to...

AI Technical Summary

Problems solved by technology

[0013] 2. When connecting to the device, generally only connect to GND RX TX

[0016] 5. The TTL standard is 0 for low level and 1 for high level (+5V level)

[0017] 6. RS-485 is similar to RS-232, but uses differential signal negative logic

[0036] The patents CN102523409A and CN101800872A disclose the technical content of using the DMX protocol to control the projector, but the technical solution has carried out a major transformation on the projector itself, thus increasing the manufacturing cost

[0037] The technical solutions disclosed in the above patent documents do not really propose a projector with a professional lighting control interface

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