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SURVEY FOR WIRELESS SENSORS IN HEALTHCARE. Presented by Bharat Soundararajan. OUTLINE. INTRODUCTION PROPOSED PROBLEMS NETWORKS FOR HEALTHCARE MEDIC AND ITS ALGORITHM DIFFERENT TYPES OF TOPOLOGIES FUTURE . INTRODUCTION. Patients need continuous monitoring of their health conditions
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SURVEY FOR WIRELESS SENSORS IN HEALTHCARE Presented by Bharat Soundararajan
OUTLINE • INTRODUCTION • PROPOSED PROBLEMS • NETWORKS FOR HEALTHCARE • MEDIC AND ITS ALGORITHM • DIFFERENT TYPES OF TOPOLOGIES • FUTURE
INTRODUCTION • Patients need continuous monitoring of their health conditions • Various vital and health care data are collected using sensors and sent to the hospital
Proposed Needs • Low complexity • Low cost • Data reliability • Low power consumption
MEDIC • Acquire data from patients in real world • It sends data to the centralized server and the centralized server forwards data to all the nodes • It can be configured from the remote server • Wearable sensors to patients for comfort ability
MEDIC MEDICAL PERSONAL INTERNET ZIGBEE or BLUE TOOTH
What is ZigBee?? • ZigBee technology is a low data rate, low power consumption, low cost, wireless networking protocol targeted towards health care • Zigbee Alliance introduced Zigbee standard protocol in 2003 • ZigBee is a technological standard, based on the IEEE 802.15.4 standard, which was created specifically for control and sensor networks.
What is ZigBee?? • As can be seen in the figure, IEEE 802.15.4 develops the Medium Access Control (MAC) Layer and Physical (PHY) Layer, which address such things as the frequency and data rate specifications. • ZigBee develops the Network Layer and Application Layer, which includes the Applications Support Sub layer, the ZigBee Device Object, and the Security Services.
BAYESIAN NETWORK ALGORITHM • A set of variables independent of each other • The probability of these variables influence the output • Symptoms are used to determine whether a person has a disease • This is trained by the previous data used for the treatment
BAYESIAN NETWORK ALGORITHM DISEASE PULSE RATE OXYGEN LEVEL BODY TEMPERATURE BLOOD PRESSURE
PROBLEM WITH MULTIHOP Cluster Tree PAN coordinator Full Function Device Reduced Function Device
Timezone CoordinatedSleep Scheduling Algorithm (TICOSS) • coordinated sleeping through the division of the network into time zones • The time zones also provides coordinated sleeping, through the V-table scheduling • The scheduling table allocates timeslots to nodes in order to assign periods of node activity and inactivity
Topology Models Mesh Star PAN coordinator Full Function Device Cluster Tree Reduced Function Device
TOPOLOGY MODELS • It manages all the sensors inside the network • It collects information from all the nodes and forwards it to the centralized server
TOPOLOGY MODELS • Fully functional device Any topology fits for fully functional device It can also act as a network coordinator, network router • Reduced functional device It only fits perfectly for reduced functional device It cannot act as a network administrator
Future??? • ZigBee is seen as a key technology for home automation and sensor networks, but its characteristics can be extremely valuable in some healthcare applications as well. • On July 24-27, 2006 in the Free scale Technology Forum, Orlando, FL, the wireless developer Cambridge Consultants demonstrated how ZigBee's unique networking attributes can be exploited to implement networks for healthcare.
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