System control method and device

A control method and controller technology, applied in the field of communication, can solve problems such as low control accuracy, and achieve the effects of avoiding large errors, precise control, and solving low control accuracy

Active Publication Date: 2019-09-10
北京龙鼎源科技股份有限公司
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The embodiment of the present application provides a system control method and device to at least solve the problem in the related art that the control accuracy of the control system is relatively low by comparing the two-channel acquisition values

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System control method and device
  • System control method and device
  • System control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In this embodiment, a system control method running on a PLC system is provided, figure 2 is a flowchart of a system control method according to an embodiment of the present application, such as figure 2 As shown, the process includes the following steps:

[0022] Step S202, in the PLC system with 1oo2 architecture, respectively obtain the historical collection data value and the new collection data value of the same signal source collected by two channels;

[0023] The subject of execution of the method may be the first controller, and the first controller may be a master controller or a slave controller corresponding to the dual channels,

[0024] Step S204, for each channel, use the new collected data value and the historical collected data value as a set, and obtain the difference between the maximum value and the minimum value in the set;

[0025] Step S206, controlling the PLC system according to a comparison result of whether the difference corresponding to t...

Embodiment 2

[0058] In this embodiment, a system control device is also provided, which is used to implement the above embodiments and preferred implementation modes, and what has been explained will not be repeated here. As used below, the term "module" may be a combination of software and / or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

[0059] According to another embodiment of the present application, a system control device is also provided, which is used in a PLC system with 1oo2 architecture, including:

[0060] The first acquisition module is used to respectively acquire the historical acquisition data value and the new acquisition data value of the same signal source acquired by the two channels;

[0061] The second acquisition module is configured to use the newly collect...

Embodiment 3

[0068] The embodiment of the present application also provides a storage medium. Optionally, in this embodiment, the above-mentioned storage medium may be configured to store program codes for performing the following steps:

[0069] S1, in the programmable logic controller PLC system with 1oo2 architecture, respectively obtain the historical collection data value and the new collection data value of the same signal source collected by two channels;

[0070] S2. For each channel, use the newly collected data value and the historically collected data value as a set, and obtain the difference between the maximum value and the minimum value in the set;

[0071] S3. Control the PLC system according to a comparison result of whether the difference corresponding to the two channels is greater than a threshold.

[0072] Optionally, in this embodiment, the above-mentioned storage medium may include but not limited to: U disk, read-only memory (ROM, Read-Only Memory), random access me...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The application provides a system control method and device. With the method, the currently collected value of one channel is compared with the previously collected historical data, and then the situation of the two channels is comprehensively considered to determine the control of the PLC system, without the comparison between the collected data of the two channels, thereby avoiding large errorsexisting when the data collected between the two channels is compared, achieving precise control, and solving the problem in the related art of low control degree of accuracy by controlling the systemby comparing the values collected by the two channels.

Description

technical field [0001] The present application relates to but not limited to the communication field, and in particular, relates to a system control method and device. Background technique [0002] In the related art, in a safety programmable logic controller (Programmable Logic Controller, PLC for short) system, each input and output I / O module under the 1oo2 architecture adopts a dual-channel design. The two channels will continue to collect data from the same signal source. The master-slave controller triggers an interrupt through the data bus to read the data of the corresponding channel of the I / O module, and then the two controllers communicate with each other to exchange their data with each other. Comparison, if the comparison result of one party considers that the data are not equal, it is considered that the control system itself has a failure, and the control system directly shuts down to prevent further failures and losses. [0003] Due to the jitter characteris...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G05B19/05
CPCG05B19/054
Inventor 杨昊佐殷涛刘志安
Owner 北京龙鼎源科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap