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Project Wisdom Stone Networking using MiWi

Project Wisdom Stone Networking using MiWi. Done By: Amnon Balanov & Yosef Solomon Supervisor: Boaz Mizrachi Project ID: d02310. Project Wisdom Stone. Small sensors, with very low power consumption Planted under roads Performing monitoring of road maintenance status.

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Project Wisdom Stone Networking using MiWi

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  1. Project Wisdom StoneNetworking using MiWi Done By: Amnon Balanov & Yosef Solomon Supervisor: Boaz Mizrachi Project ID: d02310

  2. Project Wisdom Stone Small sensors, with very low power consumption Planted under roads Performing monitoring of road maintenance status This information will save money by decreasing maintenance costs and time!

  3. Project Wisdom Stone • Based on a PIC24 micro-processor • Networking (two alternatives): • 2.4 GHz enabled by a MRF24J40 IEEE 802.15.4 Tx/Rx. • 433 MHz enabled by a MRF49XA Tx/Rx. • Networking will run MiWi (Microchip propriatory S/W stack) ***All components are made by Microchip.

  4. Project Goals The design and implementation of a networking S/W stack who’s functions will be: Transmissions of aquired data to Hub unit Inter-Sensor Communications WAKE interrupts from sleep - for sensing sessions

  5. System I/O • Tx/Rx • Communications with the Hub unit • Communications with other units • microSD memory chip • Stores aquired data • PIC interrupts • Wake/Transmission interrupts

  6. General HW Scheme Extra Board PICtail Evaluation Board – Explorer 16 Sensor Array MicroCTRL - PIC24FJ256GB110 Networking MRFJ40MB OR MRF49XA SPI SPI MEM- Flash & SRAM SPI MEM- microSD

  7. General SW Routine

  8. System Speeds • MRF24J40 • 250 kbps transmission speed • MRF49XA • 115.2 kbps digital transmission speed • 256 kbps analog transmission speed • PIC24FJ256GB110 • computational power of 16 MIPS • sampling rate of 500 ksps • microSD • reads and writes are in the MB/s range

  9. Estimated Schedule • Software Development (8 weeks- two Parts 4 and 4)- Writing code for: 1. Networking on MiWi (4 weeks) 2. A Simple Scheduler for the PIC (2 weeks) 3. microSD protocol enabling memory reads (2 weeks) *The two parts are micro-architecture and API development, and will each be four weeks long. ***After the first part of writing the micro-architecture we will hold the midterm presentation. • Debugging O/B (2 weeks)- Testing all of the main functions on the Explorer 16 Development Board with MRF24J40MB PICtail extension • Outdoors Testing (1 week)-Testing the network capabilities under simulated conditions. Est. Total: 11 weeks.

  10. Estimated Price List

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