Method and device for two-channel communication

Abstract

The present invention provides a dual-channel communication method and device. The method includes: the master device processor sends the first motion information to the slave device processor on the first communication channel, and the first motion information is used to indicate the motion state of the motor and Motion parameters; the master device processor judges whether the motor needs to switch the motion state according to the feedback information received from the motor; if so, the master device processor sends the first switching signal to the slave device processor on the first communication channel, and the first switching signal It is used to indicate that the slave device processor enters the switching preparation state; the master device processor sends a second switching signal to the slave device processor on the second communication channel, so that the slave device processor controls the motor to perform state switching according to the first motion information; The signaling speed of the second communication channel is faster than the signaling speed of the first communication channel. The dual-channel communication mode is adopted in the multi-processor, so that the motion control efficiency of the multi-processor is improved and the response is timely.

Description

technical field [0001] The invention relates to the field of industrial control, in particular to a dual-channel communication method and equipment. Background technique [0002] Motion control is widely used in the field of industrial control. Traditional embedded processor motion controllers are widely used because of their simple structure and low cost; however, due to the limited hardware resources and processing capabilities of a single processor, it is difficult to implement complex Logical control and low work efficiency. With the enhancement of the processing function of the embedded processor, a multi-processor motion control system has appeared, which greatly improves the work efficiency of motion control. [0003] In a multi-processor motion control system, the real-time and reliability of data exchange between multiple processors is particularly important. If the single-channel communication method in the prior art is adopted in the multi-processor motion contr...

AI Technical Summary

Problems solved by technology

If the single-channel communication method in the prior art is adopted in the multi-processor motion control system, each motion step in the motion control process of multiple processors requires the sending end to construct a data frame through the program, send the data frame, and the receiving end In the process of parsing data frames and other processes, due to the communication delay between the sending end and the receiving end, the motion control efficiency of the multiprocessor is low and the response is not timely

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