Mesh Telephony: Difference between revisions
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*For 10 house range - 1% of people need to be on | *For 10 house range - 1% of people need to be on | ||
*10kb codec 2 1400 bps for clear voice - CODEC2, 175bytes per second with no interframe compression | *10kb codec 2 1400 bps for clear voice - CODEC2, 175bytes per second with no interframe compression | ||
=Cost= | |||
*$100-300 cost | |||
=Applications= | |||
*Mesh phone - medical diagnostic. Remote hospital. | |||
**Open MRS | |||
**pulse-oxy - $1-10 | |||
**imaging ultrasound | |||
**bloodpressure cuff < $100 | |||
**imaging ultrasound = ? <$500 | |||
Revision as of 02:34, 15 March 2012
- Complementary to Towers and Satellites
- 2.4Ghz
- 868 MhZ
- FCC and
- licensing is national
- ISM 915 MhZ - available in enough countries
- WiFi was illegal in many countries before large user base
- $1/4M for a single tower in africa - defending tower and diesel generator
- Key: vast majority of calls are in local areas
- Store and forward - Serval rhizome
- Single house for WiFi
- For 10 house range - 1% of people need to be on
- 10kb codec 2 1400 bps for clear voice - CODEC2, 175bytes per second with no interframe compression
Cost
- $100-300 cost
Applications
- Mesh phone - medical diagnostic. Remote hospital.
- Open MRS
- pulse-oxy - $1-10
- imaging ultrasound
- bloodpressure cuff < $100
- imaging ultrasound = ? <$500