Method for controlling switching signal based on EVT combinational logic

A technology of control switch and signal method, which is applied in the direction of pump control, liquid variable capacity machinery, machine/engine, etc. It can solve the problems of untimely opening of cooling switch, unstable temperature control, frequent start of switch, etc., and achieve various control methods , Reduce injuries, work stably and safely

Active Publication Date: 2021-08-31
常州市威硕自动化科技有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional temperature controller automatically samples and monitors the ambient temperature through the temperature sensor. When the ambient temperature reaches the control set value, the control circuit starts. When the traditional cooling function is working, the cooling switch will not be turned on in time, and the switch will start frequently. conditions, it will lead to unstable temperature control, and when the controlled equipment cooling system uses a compressor, it is easy to cause damage to the compressor, etc.

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
  • Method for controlling switching signal based on EVT combinational logic
  • Method for controlling switching signal based on EVT combinational logic
  • Method for controlling switching signal based on EVT combinational logic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Such as figure 1 , this embodiment proposes a method for controlling switch signals based on EVT combinational logic, such as figure 1 , including T parameter setting, AL parameter setting, and IS parameter setting, by performing combined logic operations on T parameter setting, AL parameter setting, and IS parameter setting as one of the EVT condition signals, the EVT is controlled in action; wherein,

[0063] The T parameter is set to: judge the switch signal according to the T parameter, and the T parameter includes the current temperature, the set temperature, the temperature range and the temperature deviation;

[0064] The AL parameter is set to: control the alarm signal according to two alarm modes of temperature and humidity;

[0065] The IS parameter is set to: control the switch signal according to two objects of temperature and humidity.

[0066] Further, the T parameter setting specifically includes: judging the switch signal action based on the current te...

Embodiment 2

[0101] On the basis of Embodiment 1, this embodiment further proposes to apply to the control instrument according to the change of temperature and humidity related variables to control cooling related operations, and is suitable for EVT-based combination of light industrial machinery, ovens, experimental equipment, heating / cooling and other equipment Logic control switch signal method.

[0102] This method uses the settings of the following parameters, among which T setting, AL setting, and IS setting can work alone or as one of the conditional signals of EVT to perform combined logic operations and then control the action of EVT:

[0103] 1. T setting: judge the switch signal action according to the temperature value, using the following parameters: current temperature, set temperature, low temperature range, medium temperature range, high temperature range, high temperature deviation, low temperature deviation, hysteresis.

[0104] Judgment process: judge the range of the c...

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 invention discloses a method for controlling a switching signal based on EVT combinational logic, which comprises the steps of setting T parameters, setting AL parameters and setting IS parameters, performing combinational logic operation by taking the T parameter setting, the AL parameter setting and the IS parameter setting as one of EVT condition signals, and performing action control on an EVT. Compared with a common relay switch control method, the control conditions are more, and the control modes are more diversified. Meanwhile, the control conditions can be set, so that the same condition is flexible and changeable and is not rigid like a traditional control mode, and working requirements under various complex conditions can be better met. Through a combinational logic mode, the control is more precise, and through addition of debugging parameters such as delay return difference, a relay works more stably and safely, so that the situation of damage to equipment is greatly reduced, and the service life of the equipment is prolonged.

Description

technical field [0001] The invention relates to the field of EVT logic control switch signals, in particular to a method for controlling switch signals based on EVT combination logic. Background technique [0002] A flexible control method for relays in environmental test equipment, the control modes of the relays include: selecting a relay mode according to a control variable, selecting a control variable mode according to a relay, a logic combination mode, and a composite control variable mode; The value of the action parameter required for the action of the relay, the value of each action parameter is reflected in the form of binary logic; the action of the corresponding relay is controlled according to the control variable, and the action unit connected to the relay is also started or stopped accordingly. The traditional temperature controller automatically samples the ambient temperature through the temperature sensor and monitors it in real time. When the ambient tempe...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F04B51/00F04B49/06F04B37/12
CPCF04B51/00F04B49/06F04B37/12
Inventor 李平
Owner 常州市威硕自动化科技有限公司
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