既存の電流監視装置の機能を拡大した電流モニタリングシステムの開発

抄録

In this study, we have developed a comprehensive current monitoring system with extended functions existing current monitoring devices, while preventing power outage accidents due to overcurrent in medical institutions.

The current measurement circuit was fabricated using a current transformer sensor and a Raspberry Pi. Using this circuit, could be measured in a manner equivalent to that in a clamp meter without being affected by harmonics from the power supply. The measured values are uploaded from the Raspberry Pi to the MySQL server via HTTP communication. The latest current values and usage trend graphs are displayed on a dedicated monitoring screen. The system could be easily installed on or removed from existing power installations.

We considered that the daily monitoring of currents could prevent power supply interruptions due to overcurrent, raise awareness regarding the proper usage of power supply, and improve the efficiency of current usage status confirmation by clinical engineers.

This system can extend the capabilities of existing current monitoring devices, making it a powerful tool for the safe and appropriate use of power supplies in medical institutions.