BANMSOM_Specifications
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開始行:
[[BANSMOM]]
CENTER:SIZE(40){COLOR(#990099){''BANSMOM SPECIFICATION DETAILS''}}
CENTER:SIZE(10){COLOR(#990099){Note: This file is often updated without notification to BANSMOM members}}
... to be continued
#CONTENTS
*1. Wireless communication solutions [#cdaa7c2e]
&ref(communication.gif,,50%);
-Today a number of wireless communication solutions are available. Typical short ranges solutions are ''Bluetooth'', ''ZigBee'' and several other.
-Several of these solutions are intended for short range, in-room (10m) range and are reasonably power efficient.
-Moving wireless solutions in to body-area networks (BAN) or
personal area networks (PAN) for carrying important health information is adding another level of quality of service mostly unavailable in current wireless solutions.
-In critical applications loss of communication cannot be tolerated.
Based on input from the sensor vendors, the communication solution requirements have been specified.
''Common requirements:''
--Global synchronization
--Retransmission of lost data
--Two-way communication
--Encryption
--Identification
--Authentication
--Power consumption: <0.4 mW/Kbit
--Error detection/correction
--On-board or On-chip 12-bit A/D converter
--On-board or On-chip microcontrolle
''Bluetooth solutions:''
Bluetooth is a low cost, low power, short range technology, originally developed as a cable replacement solution to connect various devices such as mobile phone handsets, headsets and portable computers.
Bluetooth is often described as a Personal Area Network (PAN) technology, and has also been used to connect to various sensor devices.
The Bluetooth specifications are managed by the Bluetooth SIG (Special Interest Group).
In addition to the core specifications, The Bluetooth SIG has specified a number of profiles.
Each profile describes how a particular application can be implemented
including which parts of the Bluetooth protocol should be use to support the profile.
Most of the basic BWSN requirements seem to be supported by the Bluetooth technology with some important exceptions.
*2. A/D Converters [#va725e44]
*3. ECG Sensors [#o392687e]
*4. Servers [#vc1febdc]
***Medical/Hospital Server [#kdcfa7ec]
The server responsibility is to maintain a table containing all the sensors and third party applications (clients) connected through the system. This
allows individual and remote configuration of sensors.
The hospital server keeps electronic medical records of registered users and provides various services to the:
-users
-medical personals (doctors, nurses)
It is the responsibility of the medical server to:
- authenticate users
- Initiate health monitoring sessions
- format and inserts this session data into corresponding medical records
- analyse the data patterns,
- regognise serious health anomalies
- forward new instructions to the users, such as pre-described exercises.
***Home/Private Server) [#i9f8e493]
The private server provides the user interface, and control BANSMOM node. A user Interface is needed.
The private/home server begins a health monitoring session by wirelessly configuring the sensors (BANSMOM has only 1 ECG sensor-node) parameters, such as sensor type, samp,ing time, rate, etc..
*5. Wireless Module [#h48c91b6]
The IEEE has set several standards fro wireless protocols. Currently there are 3 IEEE standard of wireless communication and are called:
- 802.11 commonly called WiFi
- 802.15 commonly called Bluetouth
- 802.16 commonly called WiMAX
Bluetouth is a fast growing , low power, short distance , personal area network technology. It allows users to connect several Blutouth capable products together almost automatically. Because the transmission range is just 30ft radius, it is possible to run the technology on a very low power.
WiMAX is a new long distance wireless for use in supplanting cable Internet. With a 30mi radius, WiMAX can offer entire metropolitan areas with wireless network coverage.
WiFi offers 300ft coverage and is quickly developing. So, we will select it for BANSMOM. The other reason is that free access point are becoming more and more prevalent in airports, coffee shops, libraries, and hotels. So, BANSMOM can be extended also to moving elderly.
***Selection of an 802.11 Specification [#w5e1a69f]
Within 802.11, there are several different grades of transmission. The most widely used
are 802.11a, 802.11b, and 802.11g. The first standard available to the market place was 802.11b,
which is the slowest and least expensive. As the new standards are released with faster
transmission rates, 802.11b is becoming less common. However, 802.11g is compatible with
802.11b because they use the same 2.4GHz band for transmission. Where 802.11b can transmit
at 11Mbps, 802.11g can transmit at 54Mbps. Mainly used for industrial needs, 802.11a uses the
5GHz bandwidth and is able to transmit at 54Mbps. For our application, the 802.11b/g
specification works because the amount of transmitted data will be relatively small and will be
compatible with the largest number of networks already in existence
***Wireless Security and Encryption [#gdfce125]
Another element to the 802.11 specification is the level of encryption available.
Currently there are two main types of encryption available. The older of the two encryption methods, Wired Equivalent Privacy (WEP), is the standard encryption method for all technology with 802.11 specifications.
WEP is meant to be just as secure as any LAN; however, by
definition no wireless network can be as secure as a wired network because of the physical constraints. Radio waves can be picked out of the air without much trouble, whereas a wired - 42 -WPI – MQP Ireland A’06 Enterprise Research Centre, UL network must be plugged into to interception to be possible. Unfortunately, WEP does not offer end-to-end security despite the use of encryption to protect data. The newer WiFi Protected Access (WPA) was designed to improve upon WEP security with improved data encryption
though Temporal Key Internet Protocol (TKIP). WPA can work with products that are already WEP enabled through a software update. Technical experts have expressed views consistent with the Health Insurance Portability and Accountability Act (HIPAA), which set forth guidelines on the transmission of health information over wireless networks. A HIPPA advisory
from Phoenix Health Systems states that WEP security is easily cracked and for health information use, the more secure WPA method of encryption is secure enough to gain HIPP
***Selecting a Wireless Module [#i9b4bdc3]
CENTER:&ref(Airborne-ABDB-ET-DP101.jpg,,50%);
CENTER:''Airborne 1 Port, Ethernet to 802.11G Adapter Wireless Bridge''
CENTER:''Manufacturer Part Number: ABDG-ET-DP101''
CENTER:[[Go to the Quatech Web Site>http://www.quatech.com/]]
This device is capable of interfacing with the Ethernet port of the DSP board.
''Features:''
CENTER:&ref(Airborne-ABDB-ET-DP101-Features.gif,,80%);
***[[Nordic's nRF401 UHF transceiver>http://www.w-r-e.de/robotik/data/rf_module/datasheetnRF401rev1_6.pdf]] [#x0e9b38b]
nRF401 is a true single chip UHF transceiver designed to operate in the 433MHz ISM (Industrial, Scientific and Medical) frequency band ....
----
References:
- [[EMBEDDED MICROCONTROLLER BASED DIGITAL TELEMONITORING SYSTEM FOR ECG>http://www.isoi.in/Journal/BackIssues/37(2b).pdf]], J. Instrum. Soc. India 37(2) 134-149.
- [[Bio-medical Sensor Network>http://www.sintef.no/project/Tradlospasient/Prosjekter/Biomedical%20Wireless%20Sensor%20Network%20(BWSN)_NICe%20report_web.pdf]], Norden Innovation Center, Norway, 2010.
終了行:
[[BANSMOM]]
CENTER:SIZE(40){COLOR(#990099){''BANSMOM SPECIFICATION DETAILS''}}
CENTER:SIZE(10){COLOR(#990099){Note: This file is often updated without notification to BANSMOM members}}
... to be continued
#CONTENTS
*1. Wireless communication solutions [#cdaa7c2e]
&ref(communication.gif,,50%);
-Today a number of wireless communication solutions are available. Typical short ranges solutions are ''Bluetooth'', ''ZigBee'' and several other.
-Several of these solutions are intended for short range, in-room (10m) range and are reasonably power efficient.
-Moving wireless solutions in to body-area networks (BAN) or
personal area networks (PAN) for carrying important health information is adding another level of quality of service mostly unavailable in current wireless solutions.
-In critical applications loss of communication cannot be tolerated.
Based on input from the sensor vendors, the communication solution requirements have been specified.
''Common requirements:''
--Global synchronization
--Retransmission of lost data
--Two-way communication
--Encryption
--Identification
--Authentication
--Power consumption: <0.4 mW/Kbit
--Error detection/correction
--On-board or On-chip 12-bit A/D converter
--On-board or On-chip microcontrolle
''Bluetooth solutions:''
Bluetooth is a low cost, low power, short range technology, originally developed as a cable replacement solution to connect various devices such as mobile phone handsets, headsets and portable computers.
Bluetooth is often described as a Personal Area Network (PAN) technology, and has also been used to connect to various sensor devices.
The Bluetooth specifications are managed by the Bluetooth SIG (Special Interest Group).
In addition to the core specifications, The Bluetooth SIG has specified a number of profiles.
Each profile describes how a particular application can be implemented
including which parts of the Bluetooth protocol should be use to support the profile.
Most of the basic BWSN requirements seem to be supported by the Bluetooth technology with some important exceptions.
*2. A/D Converters [#va725e44]
*3. ECG Sensors [#o392687e]
*4. Servers [#vc1febdc]
***Medical/Hospital Server [#kdcfa7ec]
The server responsibility is to maintain a table containing all the sensors and third party applications (clients) connected through the system. This
allows individual and remote configuration of sensors.
The hospital server keeps electronic medical records of registered users and provides various services to the:
-users
-medical personals (doctors, nurses)
It is the responsibility of the medical server to:
- authenticate users
- Initiate health monitoring sessions
- format and inserts this session data into corresponding medical records
- analyse the data patterns,
- regognise serious health anomalies
- forward new instructions to the users, such as pre-described exercises.
***Home/Private Server) [#i9f8e493]
The private server provides the user interface, and control BANSMOM node. A user Interface is needed.
The private/home server begins a health monitoring session by wirelessly configuring the sensors (BANSMOM has only 1 ECG sensor-node) parameters, such as sensor type, samp,ing time, rate, etc..
*5. Wireless Module [#h48c91b6]
The IEEE has set several standards fro wireless protocols. Currently there are 3 IEEE standard of wireless communication and are called:
- 802.11 commonly called WiFi
- 802.15 commonly called Bluetouth
- 802.16 commonly called WiMAX
Bluetouth is a fast growing , low power, short distance , personal area network technology. It allows users to connect several Blutouth capable products together almost automatically. Because the transmission range is just 30ft radius, it is possible to run the technology on a very low power.
WiMAX is a new long distance wireless for use in supplanting cable Internet. With a 30mi radius, WiMAX can offer entire metropolitan areas with wireless network coverage.
WiFi offers 300ft coverage and is quickly developing. So, we will select it for BANSMOM. The other reason is that free access point are becoming more and more prevalent in airports, coffee shops, libraries, and hotels. So, BANSMOM can be extended also to moving elderly.
***Selection of an 802.11 Specification [#w5e1a69f]
Within 802.11, there are several different grades of transmission. The most widely used
are 802.11a, 802.11b, and 802.11g. The first standard available to the market place was 802.11b,
which is the slowest and least expensive. As the new standards are released with faster
transmission rates, 802.11b is becoming less common. However, 802.11g is compatible with
802.11b because they use the same 2.4GHz band for transmission. Where 802.11b can transmit
at 11Mbps, 802.11g can transmit at 54Mbps. Mainly used for industrial needs, 802.11a uses the
5GHz bandwidth and is able to transmit at 54Mbps. For our application, the 802.11b/g
specification works because the amount of transmitted data will be relatively small and will be
compatible with the largest number of networks already in existence
***Wireless Security and Encryption [#gdfce125]
Another element to the 802.11 specification is the level of encryption available.
Currently there are two main types of encryption available. The older of the two encryption methods, Wired Equivalent Privacy (WEP), is the standard encryption method for all technology with 802.11 specifications.
WEP is meant to be just as secure as any LAN; however, by
definition no wireless network can be as secure as a wired network because of the physical constraints. Radio waves can be picked out of the air without much trouble, whereas a wired - 42 -WPI – MQP Ireland A’06 Enterprise Research Centre, UL network must be plugged into to interception to be possible. Unfortunately, WEP does not offer end-to-end security despite the use of encryption to protect data. The newer WiFi Protected Access (WPA) was designed to improve upon WEP security with improved data encryption
though Temporal Key Internet Protocol (TKIP). WPA can work with products that are already WEP enabled through a software update. Technical experts have expressed views consistent with the Health Insurance Portability and Accountability Act (HIPAA), which set forth guidelines on the transmission of health information over wireless networks. A HIPPA advisory
from Phoenix Health Systems states that WEP security is easily cracked and for health information use, the more secure WPA method of encryption is secure enough to gain HIPP
***Selecting a Wireless Module [#i9b4bdc3]
CENTER:&ref(Airborne-ABDB-ET-DP101.jpg,,50%);
CENTER:''Airborne 1 Port, Ethernet to 802.11G Adapter Wireless Bridge''
CENTER:''Manufacturer Part Number: ABDG-ET-DP101''
CENTER:[[Go to the Quatech Web Site>http://www.quatech.com/]]
This device is capable of interfacing with the Ethernet port of the DSP board.
''Features:''
CENTER:&ref(Airborne-ABDB-ET-DP101-Features.gif,,80%);
***[[Nordic's nRF401 UHF transceiver>http://www.w-r-e.de/robotik/data/rf_module/datasheetnRF401rev1_6.pdf]] [#x0e9b38b]
nRF401 is a true single chip UHF transceiver designed to operate in the 433MHz ISM (Industrial, Scientific and Medical) frequency band ....
----
References:
- [[EMBEDDED MICROCONTROLLER BASED DIGITAL TELEMONITORING SYSTEM FOR ECG>http://www.isoi.in/Journal/BackIssues/37(2b).pdf]], J. Instrum. Soc. India 37(2) 134-149.
- [[Bio-medical Sensor Network>http://www.sintef.no/project/Tradlospasient/Prosjekter/Biomedical%20Wireless%20Sensor%20Network%20(BWSN)_NICe%20report_web.pdf]], Norden Innovation Center, Norway, 2010.
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