Wireless Body Sensor Networks
Post on 02-Jun-2015
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Wireless Body Sensor Networks And its Applications
Presented By:B.Thivya PriyaaG.Siva Sankari
Definition • Body Sensor Network (BSN) is used to
describe the application of motes that will enable wireless communication between several miniaturized Body Sensor Units (BSU) and a single Body Central Unit (BCU) worn at the human body
BSN Architecture • BSN can be broken into three tiers:
Intra-BSN Inter-BSN Beyond-BSN
An AnalogyType of sensor FunctionEar-worn activity recognition (e-ar) sensor
Used for capturing the posture, gait and activity of the patient
Wound healing sensor
Used for monitoring the Progress of healing for burn patients
Blood pressure sensor
Used for measuring the Blood pressure for patients with hypertension
Electromyography (emg) sensor
Used for capturing the muscle activities of orthopaedic patient
Blood glucose sensor
Used for measuring theGlucose level of diabetic patients
Heart rate sensor Used for detecting abnormalHeart conditions of cardiac patients
Real-Time Applications• Human vision
restoration by retina prosthesis.
• Proteus digital health’s "ingestible sensor" (1 sq.mm chip).
• Biosensor Tattoo stops athletes from crashing, by reading lactate level
Implantable Wireless Body Area Network
Our Idea: Monitoring Pre-schoolers using BSN
Pre-schoolers are very active Hard to keep track of them Bio sensors could help Tracking using Sensors
attached in name tags, wrist band or belts.
When they approach danger teachers are informed via access points and then to their PDAs.
Children’s health condition is also monitored
Challenges• Unobtrusiveness• Sensitivity of Sensors• Effective Methods for Data Collection• Compatibility Problems• Transport Layer Challenges• User-Friendliness • Mobility• Data Security and• Privacy
Data Security and PrivacyData Security: Data is securely stored and transferredData Privacy: Data can be used only by authorized peopleApplication scenario:
◦ Emergency; paramedic reads RFID* tag to get the patient’s medical records and his profile.
◦ WBAN is set up with wearable sensors
◦ Nurse reads health data from WBAN and uploads data onto local network
◦ Patient’s gateway device is configured with an Access Policy (AP) that grants access to records (also adapts automatically)
◦ Patient can adjust his AP to hide sensitive data
Erasure Coding
1. Proposed by Wang et al.
2. Dynamic Integrity Check: Each storage node computes and broadcasts an algebraic signature on one data shares
Pros: Data confidentiality, dependability and dynamic integrity achieved simultaneously
Cons: No third party (say, the local server) can perform integrity checks.
Conclusion• BSN sensor will be integrated in the form
of a silicon chip of sub-millimetre size. • By integrating analogue processing and
digital control onto the silicon chip, significant power reduction and increase in computation power can be achieved.
• BSN sensors will get more and more pervasive, and sooner or later they will gradually be weaved like a fabric in our lives
THANK YOU
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