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Zigbee- based seismic measuring instrument to empower the country

Zigbee- based seismic measuring instrument to empower the country. Seismic Measurement Early detection Wireless Communication Wide area coverage Chip level implementation Distortion Avoidance Empower the Country. Congested Measurement network Minimal Speed Communication Speed

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Zigbee- based seismic measuring instrument to empower the country

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  1. Zigbee- based seismic measuring instrument to empower the country

  2. Seismic Measurement Early detection Wireless Communication Wide area coverage Chip level implementation Distortion Avoidance Empower the Country

  3. Congested Measurement network • Minimal Speed • Communication Speed • Non-safe keeping • Unpreventable data loss

  4. Zigbee based measurement(Wireless) • High speed network • Frequency level(2.4GHz) • High Level Security • Parallel Communication

  5. Block Diagram-Slave Area VibrationSensor Signal Conditioning Circuit Controller PIC16F874A/877A Transmitter Area

  6. Transceiver Area RF-Switch Signal Conditioning Circuit Signal Conditioning Circuit

  7. Block Diagram-Master Area • Receiver Area Controller PIC16F874A/877A Display Unit

  8. Controller-PIC16F874A/877A

  9. Pin diagram details Pin no.1 - connected with positive power supply alongwith reset switch Pin no.11 & 32 -connected with negative powersupply Pin no. 31 & 12 -connected with ground Pin no 13 & 14 -connected 4MHz crystal oscillator Note:C1 & C2 are termed as balancing capacitor.

  10. The MPLAB IDE allows you to: • Edit your source files (either assembly or C) • One touch assemble (or compile) and download • to PICmicro emulator and simulator tools • (automatically updates all project information) • Debug using: • source files (assembly or C) • absolute listing file (mixed assembly and C) • machine code

  11. Zig-bee layout

  12. What does zigbee do? • Use max stream X-Bee modules as zigbee transceivers • Supports large network orders(<=65k nodes) • Flexible protocol design • Low power consumption • Takes full advantage of powerful physical radio band Specified by the standard IEEE-802.15.4(2.4GHz).

  13. Long Range Integrity Distance Coverage:upto 100feet(30m) Transmit Power :1mW Receiver Sensitivity :92 dbmX Low Power TX current :45mA(@ 3.3V) RX current :50mA(@3.3V) Power-down current :<10microamps Supply Voltage :2.8 – 3.4V Operating Frequency :ISM2.4GHz

  14. Xbee-Specification Performance • Area Coverage-upto100ft(30m) • Transmit power output-1mW(0dBm) • RF data rate-250,000bps • Receiver sensitivity-92dBm(1% packet error Rate) Power Requirements • Supply Voltage :2.8-3.4V • Transmit Current :45mA @ 3.3V • Receiver Current :50mA @ 3.3V

  15. UART Data Flow

  16. Modes operation • Idle mode When not receiving or transmitting. • The module is shift into following modes. • Transmit mode • Receive mode • Sleep mode • Command mode

  17. Zigbee network communications • Personal Area Networks identified by 16 bit address. • Defines three devices. • Coordinator • Router • End device • Utilizes AES(Advanced Encryption Standard)

  18. Continued.. Networking & Security • Supporting Networking Technologies • Point to Point, Point to multipoint & Peer to Peer • Number of Channels(Software selectable) 16Direct Sequence Channel • Number of Pin-20

  19. Power supply-Circuit Diagram

  20. Benefits • Zigbee based Coalmining Parameter Measurement and Control. • High speed device(2.4GHz) • High level Security • 65,000 devices can be connected at a time • Optimal Battery usage • Minimum maintenance requirement

  21. Prospect Increasing the baud rate so as to implement the audio and video transmission. online accessible. Mobile Communication. Satellite communication.

  22. Reference • “A ZigBee-Based Home Automation System”,IEEE Transactions on Consumer Electronics, Vol. 55, No. 2, MAY 2009. • K. Bromley, M. Perry, and G. Webb. "Trends in Smart Home Systems, Connectivity and Services", www.nextwave.org.uk, 2003. • A. R. Al-Ali and M. Al-Rousan, "Java-based home automation system", IEEE Transactions on Consumer Electronics, vol. 50, no. 2, pp. 498- 504, 2004. • N. Sriskanthan, F. Tan and A. Karande, "Bluetooth based home automation system", Microprocessors and Microsystems, Vol. 26, no. 6, pp. 281-289, 2002. • H. Ardam and I. Coskun, "A remote controller for home and office appliances by telephone", IEEE Transactions on Consumer Electronics, vol. 44, no. 4, pp. 1291-1297, 1998.

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