英文摘要 |
Internet of Things (IoT) plays an important role in the latest industrial revolution - the Industry 4.0. From the small personal device, such as smart watches, to the large production machines in the factories, can all be connected and exchange information through IoT. Sensors are indispensable in the development of IoT. These sensors can collect and send environmental information, such as humidity and temperature, to the facilities that use this information to respond. Arduino is one of the development platforms that fully facilitate the functionalities of the sensors. Arduino's low cost and open source nature attract a lot of developers to design creative applications on this platform. In this research, we will conduct a thorough study on the applications of Arduino platform and sensors. We implement a parking space detection system that uses the distance measuring ability of the ultrosonic sensor to detect the availability of a parking space and send this information to the drivers' mobile devices. Drivers can reduce the time in searching free parking space. To avoid developing different native apps on various platforms, such as Android, iOS, etc., we build a mobil web site to display the information. We also employ the Sever Send Event(SSE) technology introduced in HTML5, to push the information from server to user's browser to reduce bandwidth and CPU computation. |