The Design Discussion of a Self-Powered Automatic Identification System Sensor

In recent years, many vessels have utilized automatic identification systems (AISs) to process marine positioning and navigation; the system employs GPS to position and transmits signals through ultrahigh-frequency wireless communication, which can deliver the signals to a broader range. However, due to the high power consumption character of AIS, it is necessary to consider an appropriate power supply to support the system. In other words, AIS is suitable for various application fields, but the power-supply issue remains unresolved in different Internet of Things (IoT) equipment, such as marine movement or land activity positioning. This article proposes a sensor designed with a self-powered AIS, and the primary functions are as follows: 1) available for customizing the signal-sending time intervals based on the site needs; 2) a panic button is designed in the system for activating AIS signal transmission; 3) the equipment stores electricity in solar panels to improve the power consumption issue of AIS; and 4) the G-sensor installed in the equipment detects and judges AIS motion and wobble to position the vessel. The AIS equipment presented in this research mainly applies to positioning marine and mountain activities or ocean farming. Due to the lack of power supply in the applications mentioned above, if AIS cannot deliver signals for a long time, the equipment will influence the power issue of other detectors in the entire design. Therefore, this study discusses a design combined with a self-powered AIS detector, allowing the AIS equipment to operate for a year and be suitable for various applications. This design can resolve the lack of mobile communication issues on the sea or in the mountain.