WO2018071924A2 - Système de commande et de messagerie maître destiné à des systèmes de commande industriels - Google Patents

Système de commande et de messagerie maître destiné à des systèmes de commande industriels Download PDF

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Publication number
WO2018071924A2
WO2018071924A2 PCT/ZA2017/050076 ZA2017050076W WO2018071924A2 WO 2018071924 A2 WO2018071924 A2 WO 2018071924A2 ZA 2017050076 W ZA2017050076 W ZA 2017050076W WO 2018071924 A2 WO2018071924 A2 WO 2018071924A2
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WO
WIPO (PCT)
Prior art keywords
management system
control
data
sub
standardised
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Application number
PCT/ZA2017/050076
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English (en)
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WO2018071924A3 (fr
Inventor
Mark Grant
Original Assignee
Kwazulu-Natal Research Institute For Tb-Hiv (K-Rith) Npc
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Application filed by Kwazulu-Natal Research Institute For Tb-Hiv (K-Rith) Npc filed Critical Kwazulu-Natal Research Institute For Tb-Hiv (K-Rith) Npc
Publication of WO2018071924A2 publication Critical patent/WO2018071924A2/fr
Publication of WO2018071924A3 publication Critical patent/WO2018071924A3/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks

Definitions

  • This invention relatesto automated control and industrial control systems generally and in particular to a master messaging system for industrial control system sand building automation system sin particular.
  • An automated control system is a device or set of devicesthat monitors, manages, commands, directs or regulates the actions of other devicesor systems.
  • Typical control systems include industrial control systems, which isa general term that encompasses several typesof control systemsand associated instrumentation used in industrial production.
  • data automatically acquired by automated monitoring devices or input by operators are used to formulate and push automated or operator-driven supervisory commands to remote control devices (often referred to asfield devices) that control local operationssuch asopening and closing valvesand breakers; collecting data from sensor systems; and monitoring the local environment, particularly for alarm conditions.
  • remote control devices often referred to asfield devices
  • messaging systems are used to communicate system conditions, particularly alarm conditions, to human operators.
  • Building automation systems are similar to industrial control systems and make use of specialised control systems for the plant and equipment incorporated into a building or buildings.
  • the control systems include lower-level devices such as transducers, monitors or sensors, controllers, input/output devices and user interface devices as well as higher-level controllers, which are typically generic controllers not necessarily specialised for building automation, but which might also include specialised controllers, particularly in highly specialised buildings.
  • the controlled and controlling devices are all interconnected into a building automation network in which connectivity between controlled and controlling devices is provided over connecting media such as hard-wiring , mains power lines, fibre optics, radio frequency transmissions and the like.
  • the network is also used to communicate system conditions in general and alarm conditions in particular to human operators of the building automation system.
  • the controlling and controlled devices are typically all provided with programmable logic.
  • most building automation systems are networked to include a bus system based around a communications protocol.
  • BACnet developed and maintained by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)
  • LonWorks a protocol developed by Echelon Corporation.
  • BACnet and LonWorks are designed to allow a degree of interoperability.
  • true interoperability is the exception ratherthan the rule.
  • This invention provides a management system implemented in programmable logic, for an automated control system including a multiplicity of disparate sub -systems that are in communication with the management system, the management system including an interpreter implemented in programmable logic and the interpreter being programmed to receive data communicated from the sub-systemsto the management system and to reformat the received data into a predetermined, standardised format for subsequent processing of the standardised data by the management system.
  • the management system may be implemented as a master messaging system forming part of an automated control system, the master messaging system being implemented in programmable logic programmed to receive system messages output by a multiplicity of disparate sub-systems, the master messaging system including a message interpreter programmed to receive messages output by sub-systemsconnected to the management system and to reformat the received messages into a standardised message format for subsequent delivery of the standardised messages to a delivery interface.
  • a delivery interface could be any interface between the system and a message or control data point of use, for instance an operator console or display where the message or control data is interpreted and acted upon by an operator, or a field device constituted by remote control devicesthat controls local operationswithin the automated control system, whereas control data is acted upon by the field device or the state of the field devices communicated to the system.
  • the interpreter programmable logic is preferably programmed to interpret received messages output by the sub-systems connected to the interpreter by reformatting received sub-system messages into a predetermined, standardised schema format.
  • the management system of the invention may also serve as a master control system in a management system including a multiplicity of disparate control sub-systems that are in communication with the management system.
  • the interpreter programmable logic is preferably programmed to receive pro cess control data from the control sub-systems, the management system including a control data interpreter programmed to receive control data output by control sub-systems connected to the management system and to reformat the received control data into a standardised data format for subsequent delivery of the standardised data to a delivery interface.
  • the control sub -system s will typically include field devices and, in such systems, the management system programmable logic is preferably programmed to generate control commands intended for transmission to field devices in a standardised schema format and to communicate the control commands to one or more of the field devices, the interpreter programmable logic being programmed to convert control commands intended for transmission to a field device from the standardised schema format into a control command format acceptable to that field device.
  • the management system is a combination master messaging system and master control system, the management system : being implemented asa master messaging system forming part of an automated control system, the master messaging system being implemented in programmable logic programmed to receive system messages output by a multiplicity of disparate sub -systems, the master messaging system including a message interpreter programmed to receive messages output by sub- systemsconnected to the management system and to reformat the received messagesinto a standardised message format for subsequent delivery of the standardised messagesto a delivery interface; and including a multiplicity of disparate control sub -systems that are in communication with the management system, in which the interpreter programmable logic is programmed to receive process control data from the control sub-systems, the management system including a control data interpreter programmed to receive control data output by control sub- systemsconnected to the management system and to reformat the received control data into a standardised data format for subsequent delivery of the standardised data to a delivery interface.
  • the control sub-system being implemented as a master messaging system forming part of an automated control system, the master messaging
  • the management system programmable logic is preferably programmed to generate control commands intended for transmission to field devices in a standardised schema format and to communicate the control commandsto one or more of the field devices, the interpreter programmable logic being programmed to convert control commands intended for transmission to a field device from the standardised schema format into a control command format acceptable to that field device.
  • the management system of the invention may also include programmable logic meansprogrammed to store and implement one or more rules algorithms, each programmed to determine the manner in which incoming data must be processed and applied.
  • the management system programmable logic means may conveniently be programmed to apply a rules algorithm continuously to incoming data, the rules algorithm being programmed to run a continuous process, such as a loop back query process, to determine, for a particular data stream, whether the rules algorithm is inactive or still actively processing data forming part of that data stream and to only apply the rules algorithm outcome to the data forming part of that data stream when the rules algorithm isno longer active.
  • a continuous process such as a loop back query process
  • Figure 1 is a flow diagram of a master alarm messaging system forming part of a building automation system that incorporates the automated control system of the invention.
  • Figure 2 is a flow diagram of an alarm rules algorithm incorporated into the master alarm messaging system of figure 1.
  • Specialised buildings such aslaboratoriesand research facilities require complex building automation systemsthat manage not only the facilities and utilitiesconventionally found within buildings, such aslighting, security, accesscontrol and heating, ventilation, air conditioning (HVAC), but also the specialised plant and equipment required forthe functioning of the specialist facilitiesincorporated in the building.
  • HVAC heating, ventilation, air conditioning
  • the masteralarm system combinesmessaging from multiple sub- systems to allow for more intelligent alarm formatting and delivery.
  • the invention provides a management system for automated control system generally in which the management system directs the data streams derived from multiple sub-systems to an interpreter implemented in programmable logic, which reformats the received data into a standardised format so that subsequent processing of the standardised data can be undertaken on a single data processing platform.
  • the master alarm messaging system 10 relies on sub -systems (such as sensors or transducers— not shown) that monitor one or more environments local to the sub-systems for alarm conditions.
  • the essential featuresof the automated control system of the invention are implemented in sub-process 10.1 ( Figure 1B).
  • the system 10 acquires raw messaging data (process 12) from a sub -system or sub -systems (not shown).
  • the raw messaging data is then delivered to an interpreter (process 14).
  • the interpreter 14 isimplemented in programmable logic means programmed to receive the various outputs of each of the sub-systems reporting to the interpreter 14 and to interpret or convert the received output into a standardised schema format.
  • the interpreter programmable logic is programmed to interpret each output of each of the sub-systems reporting in to the interpreter 14 by reformatting each sub-system output into a standardised schema format with a view to delivering standardised alarm reports.
  • the interpreter programmable logic is programmed to interpret process control data sent to the interpreter 14 by field devices (remote control devices that control local operations within the building) by reformatting the received data into a standardised schema format to derive standardised process control data.
  • field devices remote control devices that control local operations within the building
  • process control data intended to signify or report a specified result or action in the local operation will produce a meaningful report standardised to describe the specified result or action even if communicated (input) to the interpreter 14 from field devices with different data output formats.
  • the interpreter programmable logic may be programmed to convert control commands intended for transmission to field devices from a standardised schema format into control commands unique to each different field device connected to the interpreter 14. This makes it possible for the system 10 to present a standardised control command interface to a controller or an operator by means ofwhich a command intended to produce a specified result or action in the local operation will produce the specified result or action even if communicated (output) to field deviceswith different data input formats.
  • the standardised messaging data isready for processing in accordance with an alarm rules algorithm which is programmed into the system programming logic.
  • the alarm rules algorithm contains any number of rules in terms of which incoming standardised data must be processed and applied. An example of such alarm rulesalgorithm is illustrated with reference to Figure 2.
  • the master alarm messaging system 10 is prog rammed to apply the alarm rulesalgorithm continuously to the incoming data.
  • a loop back query process 16 is used to determine, for a particular data stream, whether the alarm rules algorithm is inactive or still actively processing data. This is a further mechanism intended to limit message and data overload.
  • the alarm rules algorithm is programmed to process the data in the incoming data stream to ensure that all the data isprocessed before triggering a system reaction, forinstance by delivering an alarm, thereby avoiding delivering an alarm prematurely for instance.
  • system programmable logic may be programmed to apply different rules algorithms continuously to data incoming from relevant field devices and to run a similar loop back query process on that data. Only when the rulesalgorithm is inactive and no longer actively processing data will the system trigger a system reaction, forinstance by issuing a command intended to produce a specified result or action in the local operation.
  • the sub-pro cess 10.1 handsoverto the sub -process 10.2 ( Figure 1C) in which updated equipment and alarm status re ports 18, 24 are prepared for delivery in the next sub -process 10.3 ( Figure 1D).
  • the outcome of the data processing undertaken by the alarm rulesalgorithm isapplied to the data received and standardised by the interpreter 14 in a process22.
  • the result of the process 22 is applied to a query process 24 which determines whether the data received reportsan active alarm or not. If the alarm is active, the alarm is delivered by the process 26 and the alarm status is once again updated in a process 28. If the alarm is not active, the master alarm messaging system process isended.
  • FIG. 2 One example of an alarm rules algorithm 100 is illustrated in Figure 2 in which the system is used for access control purposes at an access point, such as a door, and in which the field devices include an access control device, for instance a card reader, and a camera.
  • the algorithm 100 comparesa camera count to an access control count to determine whether there has been tailgating (people walking close to one another) through the accesspoint.
  • the rules algorithm 100 includes a sub-process 100.2 ( Figure 2B) in which, in a first process102, counting-in data is received from a counter in the access controller. In a second process 104 counting-in data is received from a counter in the camera.
  • a rule programmed into the rules algorithm 100 is then applied asillustrated in sub-process 100.3 ( Figure 2C) where a decision process106 isactivated— decision
  • interpreter 14 and the loop back system 16 may be applied to any number of control systems that make use of disparate field devices.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Selective Calling Equipment (AREA)
  • Programmable Controllers (AREA)

Abstract

La présente invention concerne un système de gestion 10 implémenté dans une logique programmable, pour un système de commande automatisé comprenant une multiplicité de sous-systèmes disparates 10.1 qui sont en communication avec le système de gestion 10, le système de gestion 10 comprenant un interpréteur 14 implémenté dans une logique programmable et l'interpréteur 14 étant programmé pour recevoir des données communiquées depuis les sous-systèmes 10,1 au système de gestion 10 et pour reformater les données reçues dans un format normalisé prédéfini pour un traitement ultérieur des données normalisées par le système de gestion 10.
PCT/ZA2017/050076 2016-10-14 2017-10-08 Système de commande et de messagerie maître destiné à des systèmes de commande industriels WO2018071924A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA201607085 2016-10-14
ZA2016/07085 2016-10-14

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WO2018071924A2 true WO2018071924A2 (fr) 2018-04-19
WO2018071924A3 WO2018071924A3 (fr) 2018-09-27

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006014504A2 (fr) * 2004-07-07 2006-02-09 Sciencelogic, Llc Systeme de gestion de reseau a configuration autonome
US9111088B2 (en) * 2006-08-14 2015-08-18 Quantum Security, Inc. Policy-based physical security system for restricting access to computer resources and data flow through network equipment

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