1. doc.: IEEE 15-11-0207-00-004k Submission March 2011 Slide 1 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [LECIM Applications of Smart Grid in China] Date Submitted: [March 2011] Source: [Yang Yang, Xiang Wang, Heqing Huang, Jie Shen, Tao Xing, Yaoxian Fu, Haituo Liu, Liang Li, Betty Zhao] Company: [WSNIRI, SIMIT, Vinno, Huawei] Address : [NO.767 Jinzhong Road, Shanghai, 200336, China] Voice:[+86 21 5218 8899], FAX:[+86 21 5218 2002], E-Mail:[youcyyang@gmail.com, wilsonwang@gmail.com] Abstract:[Low energy critical infrastructure application of smart grid in China and corresponding technical requirements analysis] Purpose:[For information] 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.

2. doc.: IEEE 15-11-0207-00-004k Submission March 2011 Slide 2 Smart Grid in China

3. doc.: IEEE 15-11-0207-00-004k Submission March 2011 Slide 3 Smart Grid State Grid of China firstly published the plan of developing smart grid on May 21th 2009. –Different with other countries, include generation, transmission, substation, distribution and scheduling –Over 55 billions USD for investment

4. doc.: IEEE 15-11-0207-00-004k Submission March 2011 Slide 4 Solar Get energy from virtually any fuel source… Wind Energy Storage Sense system overloads, monitor grid equipments, autonomously work according to conditions… Power Station Manufactory Control Center Power Line Tailor energy consumption, energy saving… Apartment Consumer Smart Building Market Hospital

5. doc.: IEEE 15-11-0207-00-004k Submission March 2011 Slide 5 Grid Equipment Monitoring Monitoring grid equipments –monitor environmental information, like weather, vibration, inclination –Find fault circuit quickly –Prevent equipment from stolen or damage –……

6. doc.: IEEE 15-11-0207-00-004k Submission March 2011 Slide 6 Application requirements –Device monitor environmental information, small size, low price, low energy (4~6 years) –Energy requirement of Backbone will not be so critical –Both device and backbone will be equipped in metal box –Data size is small < 50 bytes –Transmission distance: Grid Equipment Monitoring device backbone, >200m; backbone backbone, >2000m –470MHz, <50mW; 2.4GHz, <10mW –Topology between backbones: belt type –System delay < 30s

7. doc.: IEEE 15-11-0207-00-004k Submission March 2011 Slide 7 Data rate < 40kbps Propagation pathloss >120dB >1000 endpoints per main powered infrastructure Asymmetric application data flow Endpoint must be able to conserve energy Reliable operation in dramatically changing environments …… PAR of 4k Work in 4k maybe find the resolution for smart grid applications