Re: [Detnet] DetNet Use Cases additions - Deadline 10Sep17

["Prof. Diego Dujovne" <[e-mail]>]

Ethan,
           I attach the proposed text for the Mining use case, now
in collaboration with Xavier Vilajosana.
Thank you.
Regards,

                                         Diego

The mining industry is highly dependent on networks to monitor
and control their systems both in open-pit and underground extraction,
transport and refining processes.
In order to reduce risks and increase operational efficiency in mining
operations, a number of processes have migrated the operators from
the extraction site to remote control and monitoring.

In the case of open pit mining, autonomous trucks are
used to transport the raw materials from the open pit to the refining
factory where the final product (e.g. Copper) is obtained. Although the
operation is autonomous, the tracks are remotely monitored from a
central facility

In pit mines, the monitoring of the tailings or mine dumps is critical in
order
to avoid any environmental pollution.
In the past, monitoring has been conducted through manual inspection
of pre-installed dataloggers. Cabling is not usually exploited in such
scenarios due to the cost and complex deployment requirements. Currently,
wireless technologies are being employed to monitor these cases permanently.
Slopes are also monitored in order to anticipate possible mine collapse.
Due to
the unstable terrain, cable maintenance is costly and complex and hence
wireless technologies are employed.

In the underground monitoring case, autonomous vehicles with extraction
tools travel autonomously through the tunnels, but their operational tasks
(such as excavation, stone breaking and transport) are controlled remotely
from a central facility. This generates video and feedback upstream traffic
plus downstream actuator control traffic.

Currently, the mining industry uses a packet switched architecture
supported by high speed ethernet. However, in order to achieve
the delay and packet loss requirements, the network
bandwidth is overestimated, thus providing very low efficiency in
terms of resource usage.

QoS is implemented at the Routers to separate video, management,
monitoring and process control traffic for each stream.

Since mobility is involved in this process, the connection between
the backbone and the mobile devices (e.g. trucks, trains and excavators)
is solved using a wireless link. These links are based on 802.11 for
open-pit mining and leaky feeder for underground mining.

Lately, in pit mines, the use of LPWAN technologies has been extended:
Tailings, slopes and mine dumps are monitored by battery-powered dataloggers
that make use of robust long range radio technologies. Reliability is
usually ensured
through retransmissions at L2.
Gateways or concentrators act as bridges forwarding the data to the backbone
ethernet network. Deterministic requirements are biased towards reliability
rather
than latency as events are slowly triggered or can be anticipated in
advance.

At the mineral processing stage, conveyor belts and refining
processes are controlled by a SCADA system, which provides the
in-factory delay-constrained networking requirements.

Voice communications are currently served by a redundant
trunking infrastructure, independent from current data networks.

Mining industry future

Mining operations and management are currently converging towards
a combination of autonomous operation and teleoperation of
transport and extraction machines. This means that video, audio, monitoring
and process control traffic will increase dramatically. Ideally, all
activities
on the mine will rely on network infrastructure.

Wireless for open-pit mining is already a reality with LPWAN technologies
and it is expected to evolve to more advanced LPWAN technologies such
as those based on LTE to increase last hop reliability or novel LPWAN
flavours
with deterministic access.

Mining Industry asks

- Improved bandwidth efficiency

- Very low delay to enable machine teleoperation

- Low power long range wireless access with high reliability

- Dedicated bandwidth usage for high resolution video streams

- Predictable delay to enable realtime monitoring

- Integration with mobile monitoring facilities using LTE wireless links


2017-08-31 6:46 GMT-03:00 akram hakiri <[e-mail]>:

> Hi Folks,
> I would like to participate to the discussed, I reviewed all the published
> DetNet drafts as part of my research of TSN.
> Would you please tell me how can I do that !
>
> thanks,
>
> Akram Hakiri
>
> 2017-08-31 10:27 GMT+01:00 Xavier Vilajosana <[e-mail]
> >:
>
>> Dear Ethan,
>>
>> I reviewed the Wind Farm use case and I have no additions. What it is in
>> v12 is the latest text.
>>
>> regards,
>> Xavi
>>
>>
>>
>> *Xavier Vilajosana*
>> *CIO*
>> Office: <+34%20934%2018%2005%2085>[ <+34%20934%2018%2005%2085>+34] 93
>> 418 0585 <+34%20934%2018%2005%2085>
>> Cell: <+34%20934%2018%2005%2085>[ <+34%20934%2018%2005%2085>+34] 646 633
>> 681 <+34%20934%2018%2005%2085>
>> [e-mail]
>> <[e-mail]>
>>
>> 2017-08-14 23:31 GMT+02:00 Grossman, Ethan A. <[e-mail]>:
>>
>>> Hi Folks,
>>> The DetNet Use Cases draft 12 will expire in October, i.e. before IETF
>>> 100, so I plan to have an update before then. According to my notes, there
>>> are five items to address, which I enumerate below. If you are one of the
>>> people mentioned below, please reply to indicate your current suggestion
>>> for new text for the draft.
>>>
>>> I expect such text to be in a form consistent with the existing use
>>> cases, however it could be plain text or a Word doc, i.e. it doesn’t have
>>> to be in XML.
>>>
>>> In several of the cases we have had some email exchanges regarding text
>>> wording – it is possible that I already have the latest text, but I would
>>> like for you to send me what you understand to be the latest, to make sure
>>> we are in sync.
>>>
>>>
>>>    1. Diego Duovne: Mining Industry use case.
>>>    2. Maik Seewald: “Comments on section: 3.1.1.2 Intra-Substation
>>>    Process Bus Communications” and “for IEC 61850 installations only
>>>    part 9-3 applies:”
>>>    3. Hassan Halabian: 5G Packet Fronthaul
>>>    4. Daniel Huang: Blockchain use case
>>>    5. Xavier Vilajosana: Wind Farm use case
>>>
>>>
>>> If anyone else has any suggestions or comments, or if I somehow lost
>>> track of your request and didn’t list it below, please reply.
>>>
>>> Please send your replies for each of these potential additions by
>>> September 10, 2017 so that I have time to review and integrate.
>>>
>>> Thanks,
>>> Ethan.
>>>
>>>
>>> _______________________________________________
>>> detnet mailing list
>>> [e-mail]
>>> https://www.ietf.org/mailman/listinfo/detnet
>>>
>>>
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-- 
DIEGO DUJOVNE
Profesor Asociado
Escuela de Informática y Telecomunicaciones
Facultad de Ingeniería - Universidad Diego Portales - Chile
www.ingenieria.udp.cl
(56 2) 676 8125