Presentation Transcript
Weariness Diagnosis System : Weariness Diagnosis System Portable Medical System
from
Moscow State University
Moscow State University team : Moscow State University team Faculty mentor: prof. V. P. Ivannikov
mentor’s assistant: A. Chernov
Team members:
P. Iakovenko
A. Khokhlov
A. Petrov
D. Vassioura
Contents : Contents Purpose and use of the system
Theoretical foundations
Architecture overview
Conclusions
Purpose of the system : Purpose of the system Provide a mean for real-time diagnostics based on heart rate
Provide a facility for long-term data storage
Allow a doctor reporting a new diagnosis to the patient
Allow easy extension of the system with new diagnostics methods
Areas of application : Areas of application Human safety-related professions (pilots, drivers, etc)
Risk groups (myocardial infarction, etc)
General public as health self-monitoring appliance
Theoretical foundations : Theoretical foundations Mathematical analysis of cardiac rhythm - a way to examine functional condition of an organism
Two-circuit model of cardiac rhythm control by Baevsky R.M.
Characteristics of regulation systems
Measurement of showings for the certain characteristics
Theoretical foundations (cont.) : Theoretical foundations (cont.) The regulatory system activity showing (RSAS) - the integral value
Medical interpretation of RSAS
Medical works used : Medical works used Parin V.V., Baevsky R.M., “Introduction to medical cybernetics”. Moscow: Praga, 1966
Baevsky R.M., Kirillov O.I., Kletskin S.M. “Mathematical analysis of cardiac rhythm variation at stress”. Moscow: Science, 1984
Baevsky R.M., Berseneva A.P., “Estimation of adaptable opportunities of an organism and risk of development of diseases”. Moscow: Medicine, 1997
Cardiac intervals (R-R intervals) : Cardiac intervals (R-R intervals)
Two-circuit model by Baevsky : Two-circuit model by Baevsky Sinus node Autonomous system Level A - organism reorganization due to environmental factors Level B - regulation of interaction between different systems Level C - parameter aligning inside certain systems Regulatory system Environment S V NC HC S, V, NC, HC - nervous control channels
Cardiac rhythm analysis methods : Cardiac rhythm analysis methods Analysis of average, transitional and instant values of heartbeat frequency Heart rate variability analysis Cardiac rhythm trend analysis Evaluation of Regulator Systems condition Statistical analysis Variation analysis Correlation analysis Spectral analysis
The characteristics of cardiac rhythm regulation systems : The characteristics of cardiac rhythm regulation systems Overall regulation function
Myocardial automatism function
Vegetative homeostasis function
Stability of regulation function
Subcorcial nervous centers activity function
Showing 1: the overall regulation function : Showing 1: the overall regulation function The overall regulation function Statistical analysis Heartbeat frequency Mean value
Physiological interpretation of showing 1 (ORF) : Physiological interpretation of showing 1 (ORF)
Showing 2: the myocardial automatism function : Showing 2: the myocardial automatism function Myocardial automatism function Statistical analysis Variation analysis Root-mean-square deviation Variation coefficient Variation amplitude
Showing 3: the vegetative homeostasis function : Showing 3: the vegetative homeostasis function Vegetative homeostasis function Variation analysis Variation amplitude Mode amplitude Tension index
Showing 4: stability of regulation : Showing 4: stability of regulation Statistical analysis Variation analysis Variation coefficient Correlation analysis Mean value Tension index Correlation coefficient after the first shift Number of shifts before the first negative correlation coefficient Stability of regulation function
Showing 5: SNC activity : Showing 5: SNC activity Spectral analysis Subcorcial nervous centers (SNC) activity function The energy of respiratory waves The energy of slow waves The energy of the spectrum in the zero point
RSAS - the integral value : RSAS - the integral value The overall regulation function The myocardial automatism function The vegetative homeostasis function Subcorcial nervous centers activity Stability of regulation The regulatory system activity showing
Scale for condition evaluation : Scale for condition evaluation
Detailed description of RSAS scale : Detailed description of RSAS scale Normal
Minimal (or optimal) tension of regulation systems - satisfactory adaptation to environmental factors
Functional tension
Mobilization of organism protective systems
Overwork condition
Incapability of adaptation systems to provide optimal reaction to environmental factors
Emaciation condition
First symptoms of disease may occur
System overview : System overview Three tier architecture:
1st tier - RDBMS (MySQL)
2nd tier - Data exchange server
3rd tier - Clients: handheld, administrative, doctor assistant
System architecture diagram : System architecture diagram
Exchange server functions : Exchange server functions Database access
User authorization & access control
Messages & diagnostics storage and exchange
Server implementation : Server implementation Java ‘daemon’ application
Multi - threaded server for parallel client communication & data management
Extendable object-based server protocol
Current server implementation : Current server implementation Server is now running on:
Pentium III 450MHz
64 MB RAM
4GB HDD
MySQL serves as a database management system
Server requirements : Server requirements Desktop computer
Java runtime environment
Database access through JDBC
Permanent Internet connection
Portable client functions : Portable client functions Real-time data collection & filtering
Temporal storage for data
Real-time evaluations
Evaluation results display
Visual and sound alarm
Regular data uploading to server
Client implementation : Client implementation Lightweight Java application
Multi - threaded for parallel data collection and real-time processing
Establishes only temporary Internet connection for data transfer
Pulse sensor as a kernel module
Current client implementation : Current client implementation Carrier’s client is working on:
AMD K6-2 333MHz
32 MB RAM
8 MB Flash ROM
160 MB PCMCIA hard drive
Pulse sensor device attached to a COM port
Client requirements : Client requirements ‘Minimal’ hardware requirements
Pentium class processor
32 MB RAM
16 MB Flash ROM
Minimal Java runtime environment
Internet connection (periodically)
Some visual & audio capabilities
Add-ons overview : Add-ons overview Administrative GUI
Doctor assistant
Extendable via new clients
Extendable via new data evaluation classes
Future... What is to be done? : Future... What is to be done? Small handheld or wearable device implementation
Develop data filtering methods
Extended data analysis methods and classes
Embedded Java client platform
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