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Network Monitoring - I2o - 10 - 2017

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//UPSTREAM//

IDEAS & THINKING FROM THE i2O TEAM

NETWORK MONITORING
Comprehensive monitoring of the distribution network has been made possible by
low cost battery-powered communicating sensors. This thought piece challenges
thinking about how network managers and their bosses can get the most out of the
opportunities this creates.

A number of things Pervasive Advances in battery Miniatuarisation and Reduced cost of


have made it communications technology lower power electronic
possible to monitor thanks to the electronics components
water distribution popularity of the
networks: mobile phone

Progress on these Competition Extended battery life Smaller form factors Competition that
fronts continues and between NB-IoT and and lower power ensures electronic
we can expect: Sigfox and Lora to electronics component prices
improve availability stay low
of low power
comms
This brings the distribution network into closer alignment with the water treatment world and the domain of
Control:

Control has for a long time


Network was Network is becoming
been
Manually operated Remotely operated Remotely operated

Geographically subdivided More centralised Centralised

Maintained on the basis of time Maintained based on asset Maintained based on asset
condition condition
Without power Battery powered Mains powered

Not connected More connected Always connected

9am to 5pm unless emergency 24 hour supervised 24 hour supervised

And so people’s instinctive reaction is to integrate So it is important to use battery power sparingly and
network monitoring with SCADA, even to create one only when it’s needed. It is not a good idea to use
monolithic technology for the water industry. But is battery power to support a system that is:
this the right thing to do?
• Always on (even having to ‘listen’ for an incoming
Are Control and the Network really so similar? ‘call’ consumes power)
• Frequently sending back data (each use of a
Control and the network are different in terms of the modem consumes power)
power source for monitoring and controlling devices,
domains of expertise, and geographic size. It is necessary to design a network monitoring system
only to send back data when it can be used effectively.
A battery is like a water bottle in a desert: how long it Mains power on the other hand is like a 24/7 water
lasts depends on how fast you drink it. supply, and there are no constraints on its use except
for its cost.

The processes, tools and people required to deploy


and maintain treatment works and distribution
networks are different. They are different knowledge
domains. They would no doubt benefit from greater
mutual understanding, but they are sufficiently
different that people skilled in each should not be
taking decisions about the other’s domain.

The network will still require manual activity (even if


there is less of it) over a wide geographical area. This
places different requirements on the availability of
Replacing a battery is costly in terms of the cells and information through mobile devices.
the visit to site. Using external battery packs has the
same cell cost, and the added inconvenience of
housing them in places where space can be restricted.
Does Control have the capacity to take on more?

Most Control rooms are already drowning in alarms. Before we add to their burden we would do well to ensure
that both Control and the Network move along this path in relation to the tsunami of data that is becoming
available:

Alarm Visualisation Event detection Diagnosis Automation

An indicator An aid to spotting Software identifies Software matches Software identifies


that something or understanding a an event from a data an event to a cause an event and takes
has breached situation stream which meets appropriate action
a parameter more complex
and might need criteria than a
investigating threshold

If planes can fly themselves with a pilot only as a supervisor and emergency stand-in then it should be possible
for water infrastructure to operate in the same way.

Whither Control?

Yes, that’s right. There won’t be a control room. A meeting room will be requisitioned ad hoc.
i2O’s network monitoring solution iNet therefore has these key features:

1. i2O loggers by default return data daily and on 4. Enables threshold alarms to be set and reviewed
breach of a threshold alarm which also trigger SMS or
email alerts (the system is fully configurable for data
return frequency nonetheless).

5. Can detect and diagnose PRV condition

2. Can ingest data from i2O loggers or 3rd party


loggers

3. Provides visualisation that aids the process of


identifying and understanding issues

6. Can export data to a SCADA system

7. Integrates seamlessly with our Advanced Pressure


Management solution oNet

What should we conclude? The distribution network and Control are similar but not the same. It should be
possible to integrate them more closely but unwise to merge them. There are still many opportunities for
improvement in both, and further advances in enabling technology to come.

31/10/2017

4 Benham Road, Southampton Science Park, Southampton, SO16 7QJ, United Kingdom
Phone: +44 (0)23 8011 1420 Email: info@i2owater.com

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