Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Networked control method for nonlinear two-time-scale system (NTTSS) with random packet loss

A technology of networked control and random packet loss, which is applied in the field of networked control of nonlinear dual-time-scale systems with random packet loss, and can solve problems such as the inability to eliminate NTTSSs steady-state errors

Inactive Publication Date: 2015-04-29
AUTOMATION RES & DESIGN INST OF METALLURGICAL IND
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a networked control method for a nonlinear dual-time-scale system with random packet loss, a networked control method for a complex nonlinear dual-time-scale system with random packet loss, and solve the problem of existing complex system network control methods Steady-state error problems caused by fast variables of NTTSSs cannot be eliminated

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
  • Networked control method for nonlinear two-time-scale system (NTTSS) with random packet loss
  • Networked control method for nonlinear two-time-scale system (NTTSS) with random packet loss
  • Networked control method for nonlinear two-time-scale system (NTTSS) with random packet loss

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0074] Next, the method of the present invention is applied to the network motor control system, and its implementation method is described. The network motor control system consists of a computer, a DC motor, a circuit board, and sensor network connection components. Its structure diagram is as follows: image 3 shown. There is a physical clock inside the sensor to realize time driving. The board is connected to the motor and the sensor separately and set up to be time driven. The board keeps in sync with the sensor by using its physical clock. The board integrates the actuator functions and associated network protocols. At each sampling instant, the sensor passes the sampled signal to the circuit board. The circuit board encapsulates the sampling signal into a data packet and sends it to the controller. At the same time, the circuit board reads the control signal in the buffer and converts it into a pulse width modulation signal to control the DC motor.

[0075] Step 1....

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 networked control method for a nonlinear two-time-scale system (NTTSS) with random packet loss, and belongs to the technical field of networked control of a complex system. By fusing fuzzy logic, a singular perturbation technique and a random system theory, the method comprehensively considers the nonlinear two-time-scale coexistence characteristic of a controlled system and the random packet loss problem caused by network communication under a unified model framework, a discrete fuzzy singular perturbation model of the networked NTTSS is established, and a random fuzzy state feedback robust control method is disclosed. The network control method has the advantages that the problem that system unstability or steady-state errors caused by a fast variable of the complex two-time-scale system cannot be eliminated in an existing network control method is solved, and the networked control performance of NTTSSs is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of networked control of complex systems, and in particular provides a networked control method for a nonlinear dual-time-scale system with random packet loss. The networked control method in the case of packet loss is suitable for high-precision networked control of complex nonlinear dual time-scale systems (Nonlinear Two Time-Scale Systems, abbreviated as NTTSSs), and can be applied to flexible arms of steel robots, medical robotic arms, and High-precision networked control of NTTSSs such as flexible spacecraft. Background technique [0002] With the rapid development of computer technology, Networked Control Technologies for Complex Systems (NCTFCSs for short) has been deeply studied and widely used in telemedicine, intelligent transportation, aerospace and other fields. However, problems such as the characteristics of the controlled system and the delay and packet loss induced by the network often cause ...

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): G05B13/04
Inventor 陈金香
Owner AUTOMATION RES & DESIGN INST OF METALLURGICAL IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com