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Doc.: IEEE 802.15-12-0394-00-004n Submission July 2012 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title:

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Presentation on theme: "Doc.: IEEE 802.15-12-0394-00-004n Submission July 2012 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title:"— Presentation transcript:

1 doc.: IEEE 802.15-12-0394-00-004n Submission July 2012 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: Overview of I2Rs Wireless Transceiver Design for MBAN Activities Date Submitted: July 17, 2012 Source: Dr. Sumei Sun Contact: Dr. Sumei Sun, Institute for Infocomm Research (I2R), ( sunsm@i2r.a- star.edu.sg), Dr. Xiaoming Peng (pengxm@i2r.a-star.edu.sg) sunsm@i2r.a- star.edu.sgpengxm@i2r.a-star.edu.sg Re: Overview of I2Rs Wireless Transceiver Design for MBAN Activities Abstract: Purpose:To focus activities during the meeting Notice:This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release:The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15. Slide 1Sumei Sun, I2R

2 doc.: IEEE 802.15-12-0394-00-004n Submission July 2012 Slide 2Sumei Sun, I2R Outline Background Wireless Transceiver design for In-body Diagnosis Wireless Transceiver for Implantable Device for Treatment

3 doc.: IEEE 802.15-12-0394-00-004n Submission July 2012 Slide 3Sumei Sun, I2R Background Wireless Transceiver design for In-body Diagnosis Wireless Transceiver for Implantable Device for Treatment

4 doc.: IEEE 802.15-12-0394-00-004n Submission Singapore Institute of Manufacturing Technology (SIMTech) Institute of High Performance Computing (IHPC) Institute of Materials Research & Engineering (IMRE) Institute of Microelectronics (IME) Institute for Chemical & Engineering Sciences (ICES) Data Storage Institute (DSI) The A*STAR Family July 2012 Slide 4Sumei Sun, I2R

5 doc.: IEEE 802.15-12-0394-00-004n SubmissionSlide 5Sumei Sun, I2R A*STARs BEP Program The Biomedical Engineering Programm (BEP) is a competitive, multi-disciplinary grant programm Aiming at engaging the local clinical community with engineers and scientists to develop cost-effective innovations through a needs- driven approach that will improve patient care Funded by the Science and Engineering Research Council (SERC) of A*STAR Supports Clinician-Engineer/Scientist collaborative research projects with emphasis on devices, procedures, diagnosis, and clinical systems The two use cases we share in this presentation are supported under the Program. July 2012

6 doc.: IEEE 802.15-12-0394-00-004n Submission Outline Background Wireless Transceiver design for In-body Diagnosis Wireless Transceiver for Implantable Device for Treatment

7 doc.: IEEE 802.15-12-0394-00-004n Submission Introduction Capsule endoscopy is a technique which facilitates imaging of the gastro-intestinal track Can be used to evaluate cause of gastro-intestinal bleeding and the surveillance of small bowel tumor and polyps Safe and well-tolerated procedure, with low complication rates July 2012 Slide 7Sumei Sun, I2R

8 doc.: IEEE 802.15-12-0394-00-004n Submission Project objective Develop wireless comms module for swallowable capsule In-body diagnostics Battery/ Standard Module Comms & Application Module Antenna 26 mm 11 mm Camera July 2012 Slide 8Sumei Sun, I2R

9 doc.: IEEE 802.15-12-0394-00-004n Submission Existing Comms Transceiver Zarlink MICS Transceiver – ZL 70101 RF Band – 402 to 405 MHz Max data rate – 800 kbps FSK modulation Low power July 2012 Slide 9Sumei Sun, I2R

10 doc.: IEEE 802.15-12-0394-00-004n Submission Comms Requirements (1/2) Primary function –Transmit up to 6 x VGA quality images per second Translates to 1.5 to 3 Mbps –existing transceiver cannot achieve this data rate Other functionalities include: –temperature sensing –pH sensing –capsule status indication July 2012 Slide 10Sumei Sun, I2R

11 doc.: IEEE 802.15-12-0394-00-004n Submission Comms Requirements (2/2) Provide limited control of capsule (low data rate) –Toggle between sleep / active mode –Actuators control –Activation of biomarkers –Adjust image compression ratio RF Band – 921 to 924 MHz –antenna more compact in 900 MHz than in 400 MHz band Low power July 2012 Slide 11Sumei Sun, I2R

12 doc.: IEEE 802.15-12-0394-00-004n Submission PHY Layer Design (1/2) Comms receivers are typically more complex than transmitters Shift system complexities to external base station to reduce power Asymmetric comms link between in-body capsule and external base station Modulation: –Capsule – QPSK Tx / OOK Rx –Base station – OOK Tx / QPSK Rx July 2012 Slide 12Sumei Sun, I2R

13 doc.: IEEE 802.15-12-0394-00-004n Submission PHY Design (2/2) Error correction: –Capsule Reed-Solomon (255, 239) encoder 1/3 repetition code decoder –Base station 1/3 repetition code encoder Reed-Solomon (255, 239) decoder Data rates: –Capsule to base station – 3 Mbps –Base station to capsule – 50 kbps July 2012 Slide 13Sumei Sun, I2R

14 doc.: IEEE 802.15-12-0394-00-004n Submission Antenna Design Capsule –Coil antenna –Radiation – Omni-directional –Dimension – 5 x 5 x 5 mm 3 Station –Patch antenna –Radiation - Directional –Dimension – 100 x 100 x 4.6 mm 3 July 2012 Slide 14Sumei Sun, I2R

15 doc.: IEEE 802.15-12-0394-00-004n Submission The Animal Trial The standalone capsule The capsule in pigs stomach July 2012 Slide 15Sumei Sun, I2R

16 doc.: IEEE 802.15-12-0394-00-004n Submission Outline Background Wireless Transceiver design for In-body Diagnosis Wireless Transceiver for Implantable Device for Diabetes Treatment

17 doc.: IEEE 802.15-12-0394-00-004n Submission 286 million diabetics worldwide, 400 million by 2030 ~10% of the Singapore population has diabetes 7th leading cause of death in Singapore, ~US$116 billion was spent on the direct medical cost for diabetes in 2007 (in US alone) All Type I and ~30% of Type 2 diabetics require insulin therapy Painful fingerpricks (blood glucose testing) and insulin injections Psychological aversion to the therapy non-compliance (as high as 50%) –Non- compliance increases the risk of developing systemic sequelae Background and Motivation July 2012 Slide 17Sumei Sun, I2R

18 doc.: IEEE 802.15-12-0394-00-004n Submission Implanting of semi-permanent glucose-sensing and insulin-delivery components - Medtronic, Johnson & Johnson, Roche, Abbott, and Animas New forms of insulin -Exubera by Pfizer, an inhaled form of insulin (withdrawn due to fears of pulmonary side effects) Some Available Advanced Solutions July 2012 Slide 18Sumei Sun, I2R

19 doc.: IEEE 802.15-12-0394-00-004n Submission Develop a proof-of-concept prototype for implantable close-loop glucose control –A closed-loop glucose regulation algorithm –A bench model for testing and developing the above algorithm –A fail-safe system to prevent hypoglycaemia based on graded alarms and glucose-insulin co-infusion –A wireless transceiver –A power management module with embedded wireless inductive power charging capabilities Our Objective July 2012 Slide 19Sumei Sun, I2R

20 doc.: IEEE 802.15-12-0394-00-004n Submission Lab Bench Prototype Platform for Base Station (external unit) Platform for Implantable Device (internal unit) July 2012 Slide 20Sumei Sun, I2R

21 doc.: IEEE 802.15-12-0394-00-004n Submission Lab Bench Prototype Base Station Communicating with Implantable unit July 2012 Slide 21Sumei Sun, I2R

22 doc.: IEEE 802.15-12-0394-00-004n Submission Validation of Control Algorithm Case 1 - Type 1 Patient Cases 2 and 3 – A Type 2 Patient monitored in March and April 2011 Modeled glucose level and clinical data were shown in the top panel; and in the bottom panel the red dash curve and the green solid line represented glucose intake rate G in (mg/dL) and insulin injection u (mU/min), respectively. July 2012 Slide 22Sumei Sun, I2R

23 doc.: IEEE 802.15-12-0394-00-004n Submission Test and Trial with Pork Meat July 2012 Slide 23Sumei Sun, I2R

24 doc.: IEEE 802.15-12-0394-00-004n Submission Prototype for Upcoming Animal Test July 2012 Slide 24Sumei Sun, I2R

25 doc.: IEEE 802.15-12-0394-00-004n Submission Power Management Energy consumption profiling –Conducted experiment on energy consumption profile of the implant device in various operation modes –Will be used to further optimize power management mechanism Energy harvesting/charging mechanism –Conducted experiments on resonant-based wireless power transfer/charging –Design is on-going July 2012 Slide 25Sumei Sun, I2R

26 doc.: IEEE 802.15-12-0394-00-004n Submission Summary and discussions Two wireless transceiver design projects have been presented –One with short-life cycle, high data rate –One with long life-cycle, moderate or low data rate Higher and higher demand for intelligent healthcare/lifesyle management –Calling for unified/inter-operable communication standard

27 doc.: IEEE 802.15-12-0394-00-004n Submission Thank You! Q&A July 2012 Slide 27Sumei Sun, I2R


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