Background:
In recent years, sudden deaths of primary and secondary school students
caused by sports activities have drawn great attention in education and medical circles. It is
necessary for schools to monitor the physical condition of the students in order to reasonably set the
duration of their physical activity. At present, the physical condition monitoring instruments used in
various hospitals are expensive, bulky, and difficult to operate, and the detection process is complicated.
Therefore, existing approaches cannot meet the needs of physical education teachers on
campus for detecting the physical condition of students.
Methods:
This study designs a portable human-physiological-state monitoring and analysis system.
Real-time communication between a wearable measurement device and a monitoring device can be
ensured by real-time detection of the environment and power control of the transmitted signal.
Results:
From a theoretical point of view, the larger the number of segments M, the more significantly
the reduction of false alarm probability. The simulation results also show this fact. Compared
with the conventional early warning mechanism, the probability of a false alarm for the proposed
system is lower, and the greater the number of segments, the faster its reaction speed.
Conclusion:
The portable monitoring system of student physical condition for use in physical
education of primary and middle school students proposed in this paper ensures real-time monitoring
of the members within the system in an open environment, and further proposes an early warning
mechanism for combining multiple vital sign parameters. In addition, the proposed system functions
faster; the average early warning time required is only one-quarter of that of the conventional system.
Power-Based Non-Intrusive Condition Monitoring for Terminal Device in Smart Grid
