| Summary: | 碩士 === 國立勤益科技大學 === 電子工程系 === 105 === Recently, Internet technology has been integrated into the industry applications field, e.g., remote control and monitoring applications via Internet. This paper develops a wireless Internet-based data collection sys-tem from different locations simultaneously. This system can monitor the data of indoor environment including the temperature and humidity using a Wi-Fi module-based sensor and human-interface to control Wi-Fi mod-ule after log in own account. Wi-Fi module can be transmitted up to 200M distance. The data can be collected from every device and transmitted to the server by MQTT protocol. After the server received the data, it will upload the data to MySQL Database. Therefore, the historical data from cloud database can be viewed on line using PHP Dynamic Data Management System. However, it usually lacks graphical interface. Using Visual C# User Interface can control Wi-Fi module and monitor the data; the past history data can be exported into Comma-Separated Values (CSV). From the results of tests, the experimental results confirm that the proposed system design presents a good performance in term of robust, stable, and fast response.
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