Lifetime test of batteries for BLE modules for site identification of vessel's crews and passengers (SIVCP)

SIVCP용 BLE 모듈의 배터리 수명시험

  • Kwon, Hyuk-joo (Electrical and Electronics Engineering, Korea Maritime and Ocean University) ;
  • Kim, Min-Gwon (Electrical and Electronics Engineering, Korea Maritime and Ocean University) ;
  • Kim, Yoon-Sik (Electrical and Electronics Engineering, Korea Maritime and Ocean University) ;
  • Lee, Sung-Geun (Division of Electrical and Electronics Engineering, Korea Maritime and Ocean University)
  • Received : 2015.08.17
  • Accepted : 2015.09.18
  • Published : 2015.09.30


Nowadays, short distance communication systems with low power energy (LPE) are developed for identification and monitoring of site identification of vessel crews and passengers (SIVCP). LPE communication modules, such as Bluetooth low energy (BLE) and Zigbee, are used for short distance communications with LPE. These modules enable 1:N communications and their popularity is growing since the modules can be mounted on movable objects, such as mobile devices and human body. When these modules are used, the important factor that affects their operation time and design are the capacity and size of battery. Therefore, they must be made as small as possible, and the battery should be selected to be slightly smaller than the module. In this study, we calculate the theoretical life of batteries used in SIVCP BLE modules using data sheet and discharge characteristic graph under the condition of a 1/250 transmission-ratio (TR). We thus calculate experimental life by measuring transmission current for the same TR, and low speed mode current for a 1/5000 TR and measure long-term experimental life using 1/25 TR for days. Through these experiments, we verify experimental methods for the prediction and extension of battery life that would enable us to select appropriate sizes of batteries based on vessel usage and passenger types. The selections of the module TR and battery size are important factors affecting the cost reduction of module design, the battery maintenance, and passenger convenience.


Supported by : 중소기업청


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