industrial internet of things: rock bolt monitoring
TRANSCRIPT
Industrial Internet of Things:
Rock Bolt Monitoring
Jens Eliasson
Associate professor, Industrial Electronics
EISLAB
Luleå University of Technology
ThingWave AB
http://www.thingwave.eu
v. 2016-03-16
Rock bolts
Widely used in the mining industry for tunnel stability
Large market! 10-100 million bolts are installed yearly!
May become damaged by seismic activities, and mining
activities
Lose their load-bearing capacity
This can lead to disasters!
Damages are not always visible from the tunnel
Today, there are no technologies for real-time
monitoring of a large number of rock bolts
Installed rock bolt in mine tunnel
1/17
Rock bolts
“A rock bolt is a long anchor bolt, for stabilizing rock excavations, which may
be used in tunnels or rock cuts. It transfers load from the unstable exterior,
to the confined (and much stronger) interior of the rock mass. Rock bolts
were first used in mining starting in the 1890s.”
2/17 www.wikipedia.com
Motivation
From this
3/17
Motivation
From this
and this…
4/17
Intelligent Rock Bolt System
Standard rock bolt equipped with
Industrial IoT (IIoT) technologies
Features sensors and high powered LEDs,
wireless communication, battery, and
low-power electronics
Can monitor:
Strain (force)
Vibrations
Bolt breakage,
etc…
Intelligent rock bolt
5/17
Overview
6/17
Overview
7/17
Technologies
The Intelligent rock bolt consists of a multitude of technologies
Standard 22 mm rock bolt, 3 meters long
Strain and vibration sensor(s)
Mulle mk4 IoT sensor- and actuator platform
Eistec Mulle mk4
Strain gauge on rock bolt 8/17
Communication
The Intelligent rock bolt utilizes several communication
technologies and protocols
IPv6 over 6LoWPAN with RPL and IPsec
CoAP and NTP
SenML for data
IPSO Smart Objects
OMA LWM2M
Arrowhead technologies
Interoperability is important
True IoT platform Protocol stack
9/17
Network architecture
Device:
Encrypted communication (AES)
OMA LWM2M
IPSO Smart Objects
Sensor & actuator drivers w/ signal processing
Gateway:
Monitoring and control system
Cloud:
Data storage
Visualization
Processing and alarms
Communication
infrastructure 10/17
Historian
Rockbolt monitor and control system
Application running on the gateway
Detects alarm thresholds and synchronizes LED signaling to spread alarms
Arrowhead-enabled
Automatic plug&play
Security
Configuration
…
Rockbolt
2
Rockbolt
n
Rockbolt
1
…
/3200/0/5500/ /acc/rms/ /3311/n/5850
Leshan
/rd
Rockbolt
Monitor and
Control
Web MMI
11/17
Conclusions
The Intelligent rock bolt is a standard rock bolt with embedded Internet of
Things technologies for sensing, secure communication and device
management
The device can monitor
vibrations
strain (force)
temperature, light, …
Only open and standardized protocols are used:
6LoWPAN, IPv6, RPL, IPsec
CoAP, NTP
OMA LWM2M, IPSO Smart Objects
The lifetime is around two years on a single battery
12/17
Next steps
Install complete system in several active mines
Identify strategic partners
Research activities
14/17
IPSO Challenge 2015
Silicon Valley, Dec 2015
We took first place!
More than 50 entries in the contest
15/17
Industrial Internet of Things in Mining
Challenging environment
Complex systems
High availability
Security and dependability
16/17
Acknowledgments
17/17