Mesh Telephony - Revision history

Marcin at 03:57, 15 March 2012

2012-03-15T03:57:06Z

← Older revision		Revision as of 03:57, 15 March 2012
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	**We give up a bit of sovereignty for a reduced cost of goods		**We give up a bit of sovereignty for a reduced cost of goods
	*Peak of modernist movement/attitude 1960 - value of centralization/economy of scale vs individual effort		*Peak of modernist movement/attitude 1960 - value of centralization/economy of scale vs individual effort

			=Phones=
			*Huawei IDEOS X1
			*Samsung Galaxy Tab
			*Can root - android and

2012-03-15T03:33:29Z

← Older revision		Revision as of 03:33, 15 March 2012
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			http://www.youtube.com/watch?v=Z3p2BYFXBkU&list=UUD7iJhnqGVKyjoXavxJrFRA&index=9&feature=plcp

			http://www.youtube.com/watch?v=K819ggBvkU0&feature=related

	*Complementary to Towers and Satellites		*Complementary to Towers and Satellites
	*2.4Ghz		*2.4Ghz

2012-03-15T03:28:29Z

Applications

← Older revision		Revision as of 03:28, 15 March 2012
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	=Applications=		=Applications=
			*GSM, 3G
			*CDMA
	*Mesh phone - medical diagnostic. Remote hospital.		*Mesh phone - medical diagnostic. Remote hospital.
	**Open MRS		**Open MRS

2012-03-15T03:13:23Z

← Older revision		Revision as of 03:13, 15 March 2012
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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
			* 915MHz 100kbit = +19db versus 2.4GHz wifi @1mbit
			* ~9db is from band propagation differences
			*+10db from 10x lower bit rate = 10x more energy per bit
			*6.02db = 2x range. 19 ~= 2x2x2 = 8x range
			* "a few hundred metres" in urban/indoors
			* "one to a few km" in clear line of site/outdoors

	=Cost=		=Cost=

2012-03-15T03:06:39Z

Cost

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	=Cost=		=Cost=
	*$100-300 cost (small vs. tablet)		*$100-300 cost (small vs. tablet)
			*$100k - custom phone from a phone pro

			=Design=
			*CPU - 600 MHz
			*Touch screen

	=Applications=		=Applications=

2012-03-15T02:55:52Z

Applications

← Older revision		Revision as of 02:55, 15 March 2012
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	**Open MRS		**Open MRS
	**pulse-oxy - $1-10 - pulse rate and oxygenation		**pulse-oxy - $1-10 - pulse rate and oxygenation
	**bloodpressure cuff < $100 - blood pressure - difference between difference between systolic and diastolic via doppler ultrasound		**bloodpressure cuff < $100 - blood pressure - difference between difference between systolic and diastolic via doppler ultrasound, can get difference, but not absolute
	**imaging ultrasound = ? <$500 -		**imaging ultrasound = ? <$500 - natal care, etc.
	**on the open market now, cheap imaging ultrasound is $4k		**on the open market now, cheap imaging ultrasound is $4k
	**$10 - $50k for hospital-style units		**$10 - $50k for hospital-style units

2012-03-15T02:54:05Z

Applications

← Older revision		Revision as of 02:54, 15 March 2012
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	*Mesh phone - medical diagnostic. Remote hospital.		*Mesh phone - medical diagnostic. Remote hospital.
	**Open MRS		**Open MRS
	**pulse-oxy - $1-10		**pulse-oxy - $1-10 - pulse rate and oxygenation
	**imaging ultrasound		**bloodpressure cuff < $100 - blood pressure - difference between difference between systolic and diastolic via doppler ultrasound
	**bloodpressure cuff < $100		**imaging ultrasound = ? <$500 -
	**imaging ultrasound = ? <$500
	**on the open market now, cheap imaging ultrasound is $4k		**on the open market now, cheap imaging ultrasound is $4k
	**$10 - $50k for hospital-style units		**$10 - $50k for hospital-style units

2012-03-15T02:46:42Z

Political

← Older revision		Revision as of 02:46, 15 March 2012
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	*Prior to Industrial Revolution, corporations could not produce better than a cottage - but could do it more times (without economy of scale)		*Prior to Industrial Revolution, corporations could not produce better than a cottage - but could do it more times (without economy of scale)
	*Now, in a back yard, one can do what a multi-billion dollar industry can do		*Now, in a back yard, one can do what a multi-billion dollar industry can do
	*For a brief time in global		*For a brief time in global history, where advantage of economy of scale clearly outweighed the disadvantages
	**We give up a bit of sovereignty for a reduced cost of goods		**We give up a bit of sovereignty for a reduced cost of goods
			*Peak of modernist movement/attitude 1960 - value of centralization/economy of scale vs individual effort

2012-03-15T02:43:19Z

Political

← Older revision		Revision as of 02:43, 15 March 2012
Line 30:		Line 30:
	*Prior to Industrial Revolution, corporations could not produce better than a cottage - but could do it more times (without economy of scale)		*Prior to Industrial Revolution, corporations could not produce better than a cottage - but could do it more times (without economy of scale)
	*Now, in a back yard, one can do what a multi-billion dollar industry can do		*Now, in a back yard, one can do what a multi-billion dollar industry can do
	*		*For a brief time in global
			**We give up a bit of sovereignty for a reduced cost of goods

2012-03-15T02:41:34Z

Applications

← Older revision		Revision as of 02:41, 15 March 2012
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	**$10 - $50k for hospital-style units		**$10 - $50k for hospital-style units
	**phone + pulseoxy + imaging ultrasound = ~$500 at low end, <$1k at high-end		**phone + pulseoxy + imaging ultrasound = ~$500 at low end, <$1k at high-end

			=Political=
			*Prior to Industrial Revolution, corporations could not produce better than a cottage - but could do it more times (without economy of scale)
			*Now, in a back yard, one can do what a multi-billion dollar industry can do
			*