The research on Body Area Networks f for future health applications f carried at Technical University of Lodz Ł ukasz Januszkiewicz Hermes Workshop, 9/10 September 2010 Lund
Plan of the presentation Plan of the presentation • Institute of Electronics • Research carried in Telecommunication Division • Research on Body Area Networks • Example project • Current and future works Hermes Workshop, 9/10 September 2010 Lund 2
Institute of Electronics Technical University of Lodz Institute of Electronics Technical University of Lodz The Institute was founded in 1973 Medical Electronics Division (4 professors) Telecommunication Division (2 professors) Electronics Circuits Electronics Circuits and Thermography Division (2 professors) www eletel p lodz pl www.eletel.p.lodz.pl Hermes Workshop, 9/10 September 2010 Lund 3
Institute of Electronics Institute of Electronics - teaching teaching • Telecommunication systems • Image and signal processing specialties • Biomedical engineering Courses taught in English g g Total no. of graduates: ~1000 4 Hermes Workshop, 9/10 September 2010 Lund 4
Medical Electronics Division Medical Electronics Division � processing and analysis biomedical signals (ECG, EEG) and images p g y g ( , ) g (CT, MRI) � hardware implementations (FPGA, AISIC) � computational intelligence in medicine ( biometry , diagnosis support, t ti l i t lli i di i ( bi di i t � t human-machine interfaces, systems aiding the disabled) Hermes Workshop, 9/10 September 2010 Lund 5
Thermography Division Thermography Division � Interfacing thermographic cameras g g p � complete computed thermography systems � In-house design of thermography camera � applications: electronics, medical diagnosis Hermes Workshop, 9/10 September 2010 Lund 6
Telecommunication Division Telecommunication Division � electromagnetic wave propagation modelling; � modelling and design of antenna systems; � modelling and design of radio communication systems including ad- hoc networks; hoc networks; � electromagnetic compatibility; Hermes Workshop, 9/10 September 2010 Lund 7
Radiowave Propagation Modelling Radiowave Propagation Modelling • Propagation prediction program was developed for the design of mobile and fixed networks. bil d fi d t k • The program was successfully used by industry for the design of dozens of small radiocommunication networks. Hermes Workshop, 9/10 September 2010 Lund 8
Radiowave Propagation Modelling Radiowave Propagation Modelling digital terrain model fieldstrength coverage Path profile analysis: Free space loss Clearance Atmospheric attenuation Path profile analysis: Free space loss, Clearance, Atmospheric attenuation, Diffraction. Propagation models: Okumura-Hata-Kozono, Anderson, ITU-R P.530, ITU R P1546 L ITU-R P.1546, Longley-Rice, … l Ri Hermes Workshop, 9/10 September 2010 Lund 9
Radiowave Propagation Modelling Radiowave Propagation Modelling • We have developed ray tracing and beam tracing (faster) propagation p y g g ( ) p p g prediction software implementing UTD (Uniform Theory of Diffraction). • Tested mainly indoor but can be adapted to outdoor propagation environment. Hermes Workshop, 9/10 September 2010 Lund 10
Radiowave Propagation Modelling Radiowave Propagation Modelling Radio survey (test-drives): Verification and tuning of radiowave propagation models and software models and software Hermes Workshop, 9/10 September 2010 Lund 11
Radiowave Propagation Modelling Radiowave Propagation Modelling Example radio survey project: W We have verified numerous radio wave propagation modeling methods h ifi d di ti d li th d (e.g. ITU-370, Anderson, Longley-Rice, Okumura) for the Polish Office of Telecommunications and Post Regulation. The project involved: • computer implementation of the propagation models; • development of measurement methodology; • measurement vehicle equipment design and testing; q p g g; • intensive field strength measurement campaign for various terrain configurations and usage; • processing and analysis of measurement and computer simulation • processing and analysis of measurement and computer simulation results. Hermes Workshop, 9/10 September 2010 Lund 12
Radiowave Propagation Modelling Radiowave Propagation Modelling Novel High-Frequency Methods for Radiowave Propagation Modelling Incorporation of edge diffraction into beam-tracing paradigm Hermes Workshop, 9/10 September 2010 Lund 13 13
Electromagnetic Compatibility Electromagnetic Compatibility We cooperate with: Central Technical Test Laboratory of Office of Electronic Communications - EU notified body (number 1466) under directives: RTTE (99/5/EC) and EMC (89/336/EEC): directives: RTTE (99/5/EC) and EMC (89/336/EEC): Hermes Workshop, 9/10 September 2010 Lund 14
Electromagnetic Compatibility Electromagnetic Compatibility We have developed (for Office of Electronic Communications): • software for automatic EMC measurements - antenna factor, radiation patterns, VSWR, etc. • • fast three-antenna AF (antenna factor) measurement method - fast three antenna AF (antenna factor) measurement method faster than original ANSI C63.5; • dedicated computer program for the measurement of NSA (Normalized Site Attenuation) – original database concept for organised long-term storage of all measurement results, configurations, and user-definable equipment control macro commands. Hermes Workshop, 9/10 September 2010 Lund 15
Electromagnetic Compatibility Electromagnetic Compatibility Example: Program for the measurement of Normalized Site Attenuation Hermes Workshop, 9/10 September 2010 Lund 16
Antenna design and analysis Antenna design and analysis • broadband antenna design g • computer modeling of antennas (XFDTD, SuperNEC) • custom antenna designs • new antenna materials (eg. textiles) Hermes Workshop, 9/10 September 2010 Lund 17
Antenna design and analysis Antenna design and analysis • broadband antenna 600MHz – 4000MHz • broadband antenna 1200MHz – 4200MHz • collinear, high gain antenna redesign • textile antenna for bdy area network Hermes Workshop, 9/10 September 2010 Lund 18
Antenna design and analysis Antenna design and analysis Example: Spiral-discone broadband (multisystem) antenna design Hermes Workshop, 9/10 September 2010 Lund 19
Ad hoc network simulation Ad-hoc network simulation • Computer modeling of radio wave propagation and traffic in mobile ad hoc networks mobile ad-hoc networks • Selection of routing strategies (proactive, g (p , reactive, hybrid) e.g. to minimize power consumption consumption We can prepare traffic and routing models and and routing models and simulation software for the needs of the project Hermes Workshop, 9/10 September 2010 Lund 20
H Hardware design with FPGA and signal processors d d i ith FPGA d i l Example projects: • ST-BUS switch for ISDN PABX exchange (Mitel chipset) • Xilinx peripherials for TMS320 (Texas Instr ) Xilinx peripherials for TMS320 (Texas Instr.), DSP568xxx, MC9S12, HC16 • Programmable 3-phase PWM signal generator • Arithmetic coder/decoder (data coding) A ith ti d /d d (d t di ) • LZW (Lempel-Ziv-Welch ) and DWT (Discrete Wavelet Transform ) for forward and backward image coders • Smart antenna controller (RF + DSP) based on Xilinx Virtex (ongoing project) Hermes Workshop, 9/10 September 2010 Lund 21
Future of healthcare Future of healthcare Telemedicine Health Health Bio Bio- - ICT ICT engineering engineering engineering engineering „….We are still living in the “mainframe” era of healthcare … what we need is …the healthcare equivalent to the low cost PC” Andy Grow, Intel Corp. Hermes Workshop, 9/10 September 2010 Lund 22
Telemedical system structure Telemedical system structure Hermes Workshop, 9/10 September 2010 Lund 23
Research problems in BAN systems Research problems in BAN systems Hermes Workshop, 9/10 September 2010 Lund 24
Textile antenna for body area network Textile antenna for body area network • Clothing can be enhanced with new functions, which may improve the living standards of both healthy and disabled people. f • Textronic products may be embedded in protection clothing for persons working in extreme environmental conditions persons working in extreme environmental conditions • The need of constant communication with persons who are in conditions of life hazard call for the application of suitable wireless systems in which it is desirable to integrate antennas with textile products. Hermes Workshop, 9/10 September 2010 Lund 25
Textile antenna Textile antenna • Wearable antennas should preferably have an approximately p y pp y omnidirectional radiation pattern • Sufficient antenna gain is required to constrain power consumption and simultaneously provide the required radio coverage. • Most designs of wearable antennas use conducting patches • • Different approach is presented using wires embedded in nonwoven Different approach is presented using wires embedded in nonwoven textile materials. Hermes Workshop, 9/10 September 2010 Lund 26
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