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1. WO2020141576 - NETWORK CONTROL SYSTEM, METHOD FOR CONTROLLING PLANT AND STORAGE MEDIUM

Publication Number WO/2020/141576
Publication Date 09.07.2020
International Application No. PCT/JP2019/025762
International Filing Date 21.06.2019
IPC
G05B 19/418 2006.1
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
19Programme-control systems
02electric
418Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control (DNC), flexible manufacturing systems (FMS), integrated manufacturing systems (IMS), computer integrated manufacturing (CIM)
G08C 17/02 2006.1
GPHYSICS
08SIGNALLING
CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
17Arrangements for transmitting signals characterised by the use of a wireless electrical link
02using a radio link
H04W 28/02 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
28Network traffic or resource management
02Traffic management, e.g. flow control or congestion control
CPC
G05B 19/4185
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
19Programme-control systems
02electric
418Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
4185characterised by the network communication
G05B 2219/15117
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
2219Program-control systems
10Plc systems
15Plc structure of the system
15117Radio link, wireless
G05B 2219/33192
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
2219Program-control systems
30Nc systems
33Director till display
33192Radio link, wireless
H04L 41/0823
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
41Arrangements for maintenance or administration or management of packet switching networks
08Configuration management of network or network elements
0803Configuration setting of network or network elements
0823Configuration optimization
H04W 28/0231
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
28Network traffic or resource management
02Traffic management, e.g. flow control or congestion control
0231based on communication conditions
H04W 28/0273
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
28Network traffic or resource management
02Traffic management, e.g. flow control or congestion control
0273adapting protocols for flow control or congestion control to wireless environment, e.g. adapting transmission control protocol [TCP]
Applicants
  • MITSUBISHI ELECTRIC CORPORATION [JP]/[JP]
Inventors
  • GUO, Jianlin
  • MA, Yehan
  • WANG, Yebin
  • CHAKRABARTY, Ankush
  • AHN, Heejin
  • ORLIK, Philip
Agents
  • SOGA, Michiharu
Priority Data
16/239,57404.01.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) NETWORK CONTROL SYSTEM, METHOD FOR CONTROLLING PLANT AND STORAGE MEDIUM
(FR) SYSTÈME DE COMMANDE EN RÉSEAU, PROCÉDÉ DE COMMANDE D'INSTALLATION ET SUPPORT DE STOCKAGE
Abstract
(EN)
A networked control system for controlling at least one plant includes a receiver configured to receive a feedback signal indicative of a current state of a controlled variable of a plant over a wireless link and a controller configured to determine a control command based on a control error between a reference state of the controlled variable and the current state of the control variable. The system also includes a processor configured to determine, based on a function of the control error, a number of transmission times a packet with the control command needs to be transmitted over the wireless link, and a transmitter configured to transmit the packet over the wireless link the number of transmission times.
(FR)
Cette invention concerne un système de commande en réseau pour commander au moins une installation, comprenant un récepteur configuré pour recevoir un signal de retour indicatif d'un état actuel d'une variable commandée d'une installation par une liaison sans fil et un dispositif de commande configuré pour déterminer une instruction de commande sur la base d'une erreur de commande entre un état de référence de la variable commandée et l'état actuel de la variable commandée. Le système comprend également un processeur configuré pour déterminer, sur la base d'une fonction de l'erreur de commande, un nombre transmissions à effectuer pour un paquet avec l'instruction de commande doit être transmis par la liaison sans fil, et un émetteur configuré pour transmettre le paquet par la liaison sans fil pour ledit nombre de transmissions.
Also published as
Latest bibliographic data on file with the International Bureau