DMX512 data receivers and method thereof for automatic addressing in network

Abstract

The invention relates to a method for enabling data receivers to carry out automatic addressing in a regulation and control data network constructed on the basis of a DMX512 protocol and data receivers. The regulation and control data network comprises a DMX512 data controller / coder and DMX512 data receivers which are not more than 512, wherein the DMX512 data receivers adopt a tandem connection mode to construct a network. The data receivers firstly decode received frame data and read the respective regulate and control byte of the first k regulate and control data bytes and then recode the frame data and output the recoded frame data after deleting the first k regulate and control data bytes in the frame data. The invention realizes the automatic addressing of the data receivers without limited transmission distance under the condition of being compatible with the universal DMX512 data controller / coder, which enables the network construction and the later-stage maintenance to be convenient and enables the regulate and control data network to have more complicated regulate and control data transmission and distribution capabilities.

Description

technical field [0001] The invention relates to a method and a device for allocating network addresses in a network, in particular to a method for allocating network addresses for a data receiving device in a network established based on a data transmission protocol and a device for the method. Background technique [0002] The DMX512 protocol is an international standard digital dimming communication protocol, Digital Dimmer Protocol, proposed by the United State Institute for Theater Technology, Inc., originally used for stage lighting control. It can transmit 512 channels on a pair of lines. Standard for silicon controlled brightness information. In the network formed by the control / encoder and no more than 512 data receivers, the control / encoder encodes the control data according to the DMX512 protocol and outputs it to the above-mentioned network, and each data receiver receives its own control data, The control data is used to adjust the brightness of the lamps; now t...

AI Technical Summary

Problems solved by technology

The defect of this method is that the control / encoder and the data receiver used in the method are all supporting designs, and have special functions, and cannot be matched by the general DMX512 control / encoder of the prior art. It is extremely unfavorable in terms of application and promotion, and the scope of application is small; moreover, the number of connecting lines will also increase in different ways, the networking method is also relatively complicated, and the control / encoder operation is also different and complicated

[0008] The above methods all have their own defects, and for LED lamps, each lamp needs to occupy more than one address, such as the control of the red, green and blue lights of the lamp. Method for Receiver to Occupy Multiple Addresses

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