Mon 18.20 Wireless Monitoring and Control APC9072

8/10/2019 Mon 18.20 Wireless Monitoring and Control APC9072

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:

Authors: Waqas Ikram and Nina F Thornhill

Department of Chemical Engineering

Imperial College London

AC 9, , , 1920 2011


2/24

C

?

C A

A

C A

C

& C: !

A C

C: !

A

C

AC 9, , , 1920 2011


3/24

A

E A

H

AC 9, , , 1920 2011


4/24

A A

*:

,

,,

&

*

:

/

:

Made possible by advancements in performance of wireless networking

and a reduction in price of networkingAC 9, , , 1920 2011

* DoE


5/24

?

E

E A E A

& * HGH

** HGH

E

***

.. ,

E A E A

:

&

&

E ABE ABE

E ABE ABE

and less mechanical design limitations

AC 9, , , 1920 2011

* ARC Avisory, 2008

** Hartebrodt et al., 2004*** Ferris, 2010


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:

Industrial Measurements

Machine Condition

Monitoring

Structural Health

Monitoring

Process

MonitoringMONITORING

Open-Loop Closed-Loop SupervisoryCONTROL

Management

Environmental Monitoring

Emissions

Monitoring

Fire/Gas

DetectionClimate/Air

Monitoring

StrandedField Data

StrandedAssets

Remote &Aging Assets

Control Control Control

AC 9, , , 1920 2011


7/24

C

?

C A (A)

A

C E

& C: !

A C

C: !

A

C

AC 9, , , 1920 2011


8/24

A :

The cost-effective operation of a plant is highly dependent on automation systems,

of which communication networks are a life-line to the process operationsAC 9, , , 1920 2011


9/24

C A A C :

315

420

420

after (Georgiev, B [2003]) & Binsai

?

AC 9, , , 1920 2011


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C :

License-exempt, Low-power and Globally Available *

IEEE802.11x (Issues) according to Irwin et al.,

-- Channel Contention linked to Scalability

-- Retransmission of data leading to delays

-- Insufficient bandwidth can lead to longer delays

-- FIFO etc.

* Restriction on channels and emission levels apply

AC 9, , , 1920 2011


11/24

:

802.11

C

.. &

C

H

C C C

()

G G

Hence are not suitable for Process Automation

()

AC 9, , , 1920 2011


12/24

:

:

E

E C

: F

B

HA

A100.11

AA

AC 9, , , 1920 2011


13/24

:

:

C H C

: E, , A

:

( ) C

: F (.. , ),

D: D A (DA)

C : C A

AC 9, , , 1920 2011


14/24

C:

STANDARDS

ZigBee PRO WirelessHART ISA100.11a WIA-PA

Transceiver IEEE802.15.4 IEEE802.15.4 IEEE802.15.4 IEEE802.15.4

Topology

(Mesh Support)

Star, Tree, Mesh

(Yes)

Mesh

(Yes)

Star, Tree, Mesh

(Yes)

Hybrid Star and Mesh

(Yes)

Channel Hopping Agility Time slot Hopping Time slot Hopping &

Slow Hopping

AFD &

Time Slot Hopping

Superframe Slot Size N/A 10ms Configurable Configurable

Time slot Hopping Time slot Hopping &

Slow Hopping

AFD &

Time Slot Hopping

10ms Configurable Configurable

anne ccess

Device Type FFD, RFD FFD FFD, RFD FFD, RFD

Expansion/New Extension of ZigBee Extension of HART

protocol

New protocol New protocol

Determinism No Yes Yes Yes

Channel Management

Features

Preferred Channel Blacklist Whitelist & Blacklist Adaptive

Battery Life* Best Good Good Good

Reliability and

Robustness against

Jamming

Low Good Good Depends on Hopping

mechanism

Extension of HART

protocol

New protocol New protocol

Blacklist Whitelist & Blacklist Adaptive

AC 9, , , 1920 2011


15/24

C

?

C A (A)

A

C E

& C: !

A C

C: !

A

C

AC 9, , , 1920 2011


16/24

C A :

Wireless Monitoring and Control

Future

Curre

ntAdoption

from ISA100.11a

Mesh technologyis useful to increase reliability and range, however, it can

lead to increase in latencytimes (concern for control)AC 9, , , 1920 2011


17/24

C C:


A

C

C :

( )

D

AC 9, , , 1920 2011


18/24

C A C:

H C?


A

C

( )

C 2.45 GH

C ()

BE

( )

AC 9, , , 1920 2011


19/24

A *:


C

A C

C

.

CA C

.

.

C / .

. .

CD

.

A .

-Controller Design needs tobe robustand adaptive to

communications constraints

AND

-Network needs to be optimised

for end-to-end control

performanceAC 9, , , 1920 2011

* Liu, X & Goldsmith, A.


20/24

C (D ):

D C

C


, .

, .

AC 9, , , 1920 2011


21/24

A: C

: A , , ...

A:


MSF Transmitter

Mote Integrated with Radio Clock

C EFA 2010:

: . .

, , , , , ,

Deployment sites

Imperial

College

London

AC 9, , , 1920 2011


22/24

A: C C


Wireless Network Sensor(s)

Ac

tuator(s)

H C

C ACC 2010:

: , ,

. , , , ,

PROCESSCONTROLLER

Wireless Network

AC 9, , , 1920 2011


23/24

A ,

.

.

H, .

C . C

.

C

.

Using wireless communication for closing the loop requires robustness, guaranteed

real-time data delivery, integrity, securityand availabilityunder all conditions.

AC 9, , , 1920 2011


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Documents

Mon 18.20 Wireless Monitoring and Control APC9072