1 / 12

Electronics Blocks for Basic Sensor-Based System

Electronics Blocks for Basic Sensor-Based System. System Design and Problems (II). Overview. Design Objective What is MiWi MiWi and Zigbee MiWi wireless solution Limitations. Design Objective. WSN for E-blocks Can be easily setup by user Low cost solution. What is MiWi.

odelia
Download Presentation

Electronics Blocks for Basic Sensor-Based System

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Electronics Blocks for Basic Sensor-Based System System Design and Problems (II)

  2. Overview • Design Objective • What is MiWi • MiWi and Zigbee • MiWi wireless solution • Limitations

  3. Design Objective • WSN for E-blocks • Can be easily setup by user • Low cost solution

  4. What is MiWi • The MiWi protocol is free, small footprint protocol developed for customers who do not need ZigBee protocol, but want to use IEEE802.15.4 standard for low-cost p2p, star and mesh network.

  5. MiWi and ZigBee

  6. MiWi Wireless Solution

  7. MiWi Wireless Solution

  8. MiWi Wireless Solution(Mesh Network Model) Mesh Network

  9. MiWi Wireless Solution IEEE 802.15.4™ FUNCTIONAL DEVICE TYPES • Full Function Device (FFD): • Can be PAN coordinator, coordinator or end device. • Support majority of services. • Reduced Function Device (RFD): • Can communicate with its parent only. Talk to other via coordinator. • End device only. • Require less amount of RAM and ROM.

  10. MiWi Wireless Solution MiWi™ PROTOCOL DEVICE TYPES • PAN Coordinator: • One per network. Form the network, allocated network addresses, holding binding table. • Must be FFD. • Coordinator • Extends the physical range of the network. Allow more nodes to join the network. • Can be PAN Coordinator if needed. • Must be FFD. • End Device • Performs monitoring and/or control functions. • Can be FFD/RFD.

  11. Limitations • Maximum 8 coordinators with 127 nodes per coordinator. • Will not cause a serious problem. • Maximum 4 hops per message • Modify MiWi protocol stack • Build own protocol on top of MiWi protocol stack

  12. Next… • Building Eblock sensor. • Continue study on MiWi protocol stack. • Some known problems and existing solutions. • Construct a simple MiWi hardware using microchip PIC Micro and MRF24J40 transceiver.

More Related