More Related Content Similar to Completely Wireless Real-Time Sensors for Smart Factory Applications (20) More from M2M Alliance e.V. (20) Completely Wireless Real-Time Sensors for Smart Factory Applications3. © Fraunhofer
Introduction
Industry 4.0
Flexible equipment and machines
Functions are distributed in the
network
All participants are connected
across hierarchical levels
Communication takes place
between all parties involved
The product is part of the network
Access to the connected world
(Source: Plattform Industrie 4.0)
5. © Fraunhofer
Wireless Communication
Motivation
Increasingly large number of sensors expected
Cabling no longer practical
Need for sensors in moving machine parts
Cabling is critical in harsh environments
Source:Pctipp.ch
"Wireless communication
enables the networking of all
production units. It will play a
key role in the realization of
industry 4.0"
(ZVEI Positionspapier*)
*)ZVEI; „Industrie 4.0: Auf dem Weg zur smarten Fabrik
– die Elektroindustrie geht voran“
8. © Fraunhofer
Condition Monitoring and Real-Time Prozess Control
Sensor Signals and Data Volumes
(Source: ZEMA Saarbrücken)
Application Example Projekt MoSeS-Pro
12. © Fraunhofer
Wireless Data Transmission
Radio Technologies
Suitability of available standards for industrial applications
(Source: VDE (ITG), Positionspapier »Funktechnologien für Industrie 4.0«)
13. © Fraunhofer
Wireless Data Transmission
IO-Link wireless
Novel communication standard for industrial
production
IO-Link is a well known standardized IO
technology (IEC 61131-9) for communication
with sensors as well as actuators (via 3 or 5-
wire standard cables)
IO-Link wireless is an extension of the IO-Link
standard
IO-Link Community:
Technical WG »IO-Link wireless«
Fraunhofer IMS is a member since 2016
Public review started in September
15. © Fraunhofer
IO-Link wireless
Properties
Scalable number of nodes (10 - 100 participants)
Constant time frame for all participants: 5 ms
High reliability: packet error rate < 10-9
Short telegrams, bandwidth: 1 MHz (1 Mbit / s, gross)
Scalable range
Use of parallel systems within a production hall
Low energy consumption
Autarkic supplied sensors
Based on IEEE 802.15.1 (physical layer, bluetooth)
17. © Fraunhofer
IO-Link wireless
Properties
Use of the license-free 2.4 GHz band:
78 channels, bandwidth 1 MHz
Frequency hopping
Constant time frame: 5 ms (3 x 1,664 ms)
Two re-transmission with channel change
(Bildquelle: Fraunhofer IMS)
19. © Fraunhofer
IO-Link wireless
Implementation
Implementation of IO-Link wireless protocol:
Physical layer
Modulation: GFSK
Frequency hopping
(f = 2402, …, 2478 MHz)
TX power: ≤ 10 mW (EN 300 328)
Gross data rate: 1 Mbit/s
Data link layer
Packet-, message assembly
Synchronization, acknowledgement
Verification with software defined radio
(Source: Fraunhofer IMS)
21. © Fraunhofer
Wireless Energy Transmission
Charge&Go Concept
Mobile sensor on deterministic path
Wireless power transmission ≥ 10 W at “charge” position
Autarky energy supply during operation “go”
Power consumption of sensor ≥ 50 mW
»Charge« (s) »Go« (s)
2,1 348
1,0 204
0,5 111
0,2 47
0,1 24
(Source: Fraunhofer IMS)
22. © Fraunhofer Vertraulich
Wireless Energy Transmission
System Overview
Inductive energy transmission:
Frequency band: 119 kHz to 140 kHz (EN 300 330)
Storage and storage management:
Super cap, dedicated controller
Data transmission:
System conditions (available energy, error indication, etc.)
(Source: Fraunhofer IMS)
23. © Fraunhofer Vertraulich
Wireless Energy Transmission
Realization
Requirements:
Short coupling time, distances 0 mm to 5 mm, robust in metal
environment, flat design
Specification:
Size of receiving coil: 45 mm x 45 mm x 4 mm
Frequency: 125 kHz
(Source:FraunhoferIMS)
(Source: Fraunhofer IMS)
24. © Fraunhofer
Wireless Energy Transmission
Results
Transmitted Power: 15 W into 1,5 Ω (Rin of super cap charger)
Available energy: 12,5 J (TCharge = 1 s)
Capacity: 2 x 1F
(∆UC = 3,2 V, Tgo = 348 s))
26. © Fraunhofer
Conclusion
Completely Wireless Real-Time Sensors
Wireless communication enables the networking of all production units
It will play a key role in the realization of industry 4.0
Standard for robust wireless real-time communication
for industrial production needed
The novel IO-Link wireless standard will fulfill requirements
“Charge and Go” is a potential approach to supply wireless sensors
wirelessly with energy