1. COBS: The Intelligent conveyor belt roller
COBS: The Intelligent conveyor belt roller
Joakim Gebart
Eistec AB
ITF Automationsdagar 2014

2. Conveyor belt roller
ITF Automationsdagar 2014

3. The COBS project
Aims at developing intelligent conveyer belt rollers for the mining industry etc.
Ball bearings, RPM etc. are monitored in real-time
Patented
ITF Automationsdagar 2014

4. The COBS project First Internet-connected test runs completed
Testing in production at LKAB, Norway
Based on composite roller from Narvik Composite A/S and the Mulle from Eistec AB
ITF Automationsdagar 2014

5. Partners
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6. Background Composite roller developed by Narvik Composite
Industrial interest in embedded condition monitoring
Made possible through composite design of roller
Measurement of roller parameters, e.g. bearing temperature, rotation speed, and vibration
Facilitate preventive maintenance and prevent sudden failures due to roller damage,
Pre-study formed base
Generator integration in Roller
Patent granted
ITF Automationsdagar 2014

7. Technical challenges Harsh environment Evaluation of measurement data
Magnetic, EMC, temperatures, humidity, mechanical, rotating environment
Evaluation of measurement data
Diagnostics based on e.g. temperature and vibration
Robustness
The electronics life span must exceed the expected life of roller
Power supply
Integration of generator in roller
Network
Signal transfer and multi hop networking
Production
Cost effective production
ITF Automationsdagar 2014

8. System overview
Internet
ITF Automationsdagar 2014

9. System components Composite rollers
Sensor nodes equipped with multi-channel sensors
Ball bearing temperature
Ball bearing vibration
Revolutions per minute (RPM)
Total revolutions
CoAP-based services
EXI/CoAP/IPv6 communication architecture
Web-based portal for data visualization
Web Portal
Data logging
6LoWPAN Gateway
Roller service(s)
Roller service(s)
ITF Automationsdagar 2014

10. Roller Composite roller Sensors Sensor node Wireless communication
Processing capabilities
Energy harvesting (generator)
ITF Automationsdagar 2014

11. Mulle wireless sensor and actuator node
Mulle wireless sensor and actuator node
Analog and digital inputs and outputs
Wireless communication on 868 MHz or 2.4 GHz
Runs TinyOS and Contiki
Very low-power operation
Updated version beginning production in Q (ARM Cortex-M4)
ITF Automationsdagar 2014

12. Service oriented architecture
Some services are executed on sensor nodes (Mulles)
Other services are executed in the cloud (Internet)
Mixed protocol services and interaction are demonstrated
IPv6 and IPv4
6LoWPAN
CoAP
XML and EXI
SenML
ITF Automationsdagar 2014

13. SCADA integration
Service oriented approach enables integration with SCADA systems and maintenance applications
Integration based on FP7 IMC-AESOP
Enables rollers to communicate with higher layer systems
ITF Automationsdagar 2014

14. Future Investigate long-term performance and robustness
New version of Mulle hardware
New signal processing capabilities
Low power, low cost
Encrypted communication
Improve security
ITF Automationsdagar 2014

15. Questions?
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16. Contact information
Eistec AB Web: Mail: Phone:
ITF Automationsdagar 2014