PRESENTATIONBY

ARUN B THAHAS7 E C

ROLL NO:3

introduction Existing High power wireless

technologies Goal of DASH7 DASH7 :-Developers Alliance for

Standards of ISO18000-7 Range up to 5 Km Data transfer upto 28 kbps Available by 2030

blast Operates in BLAST concept Blast exploits the scattering of light during

transmission. Bursty: Abrupt data transfer Light data: Packet size limited to 256 bytes Asynchronous: DASH7 uses Command-

Response Transitive: DASH7 is upload-centric

Protocol

Simple Protocol Symmetric Protocol This makes it more flexible or versatile Dash 7 based tags can be easily implemented

as low power devices

range By Friis Equation

antenna Frequencies below 1Ghz antenna size is large Small antennas workable at low frequencies Small loop antenna Helical loop antenna

communication

Data rate :Amount of bits that a communication system can deliver in a given amount of time

SNR: Signal to noise ratio :- FSK modulation

future comparison

merits They use less power Perfect to deliver long range Highly reliable High penetrating power Multi year battery life Inter-operatability

applications

If the system doesn’t need high data rate can use DASH7Thus UHF band is perfect choice to deliver the long range ,highly reliable signal it needs , all the while preserving a tiny power budget.

conclusion

Thanks for the attention