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Station monitoring method, computer readable storage medium and system

A computer program and workstation technology, applied in the field of communication protocols, can solve the problems of low information transmission efficiency, cluttered input and output signals, and low control efficiency, and achieve the effects of reducing action lag, improving accuracy, and improving response speed.

Inactive Publication Date: 2020-04-24
ZHUHAI GREE INTELLIGENT EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many sensor signals and complex input and output signals in the station monitoring technology of automation lines, resulting in low control efficiency.
Some methods have also been gradually proposed for station monitoring now, such as a monitoring system of a detonator production line in Chinese patent CN104503413A, which discloses signals including each station to the main PLC, main PLC monitoring and processing and an alarm system, etc., its main PLC and each work station The linkage of seat PLC, information upload, download and action coordination are all through a communication method, which is not efficient in information transmission, and it is easy to cause errors in information transmission

Method used

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  • Station monitoring method, computer readable storage medium and system

Examples

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Effect test

Embodiment 1

[0019] Embodiment 1: a method for station monitoring.

[0020] A method for station monitoring, including a factory assembly line, with flow directions such as figure 1 As shown, from A to B. Set up a main PLC at the beginning of the assembly line, and use the main PLC to monitor each station of the entire assembly line. Stations 1-6 are equipped with 6 remote IO modules, and the output signals can be transmitted to the main PLC through the EtherCAT protocol and the field bus . According to the input signal fed back by the remote IO module, the main PLC calculates the real-time output signal through the program, and feeds back to the remote IO module of each station through the field bus to make the relevant station work. All control signals are transmitted through the on-site EtherCAT bus, and the master PLC has the highest control over each station. The PLC modules of all stations are equipped with network ports, and all data are set as label groups, and the data labels c...

Embodiment 2

[0022] Embodiment 2: a computer-readable storage medium.

[0023] A computer-readable storage medium is used for storing a computer program, and when the computer program is invoked by a processor, the workstation monitoring method of Embodiment 1 is realized.

Embodiment 3

[0024] Embodiment 3: A system.

[0025] A system includes a processor and a memory, the memory is used to store a computer program, and when the computer program is invoked by the processor, the workstation monitoring method of Embodiment 1 is realized.

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Abstract

The invention provides a station monitoring method, a computer readable storage medium and a system. A main PLC is used for monitoring the stations in real time by utilizing a double-layer control transmission bus principle; specifically, sub-PLC data of each station are transmitted to a main PLC through an Ethernet / IP protocol, and a control logic instruction is transmitted to the sub-PLCs through an EtherCAT protocol so as to control actions of each station; according to the method, a complex and cumbersome control mode adopting a plurality of PLCs is solved; through data transmission modesof the two buses, an Ethernet / IP bus is adopted for data transmission, and an EtherCAT bus is adopted for servo drive control instructions, so that it is ensured that no interference is generated between data transmission, and the accuracy and high efficiency of data transmission are facilitated.

Description

technical field [0001] The invention relates to the technical field of communication protocols, in particular to a station monitoring method, a computer-readable storage medium and a system. Background technique [0002] With the improvement of industrial automation, some advanced factories have realized unmanned automation. For an unmanned automation line, the control method is undoubtedly the most important. At present, there are many sensor signals and complex input and output signals in the station monitoring technology of automation lines, resulting in low control efficiency. Some methods have also been gradually proposed for station monitoring now, such as a monitoring system of a detonator production line in Chinese patent CN104503413A, which discloses signals including each station to the main PLC, main PLC monitoring and processing and an alarm system, etc., its main PLC and each work station The linkage of the seat PLC, information upload, download and action coor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/42G05B19/05H04L12/40H04L29/06H04L29/08
CPCG05B19/058G06F13/4221H04L12/40013H04L67/025H04L69/08H04L2012/40215
Inventor 张琪覃道赞刘超黄静夷
Owner ZHUHAI GREE INTELLIGENT EQUIP CO LTD
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