Abstract
The objectives of this research were to design and develop an automatic water level warning system for communities living along Khlong Lad Phrao (Lad Phrao Canal) in Bangkok. The development of the system was divided into the following four main parts: 1) a water level measurement system; 2) a precipitation measurement system; 3) a water quality testing system covering dissolved oxygen, pH, turbidity and electrical conductivity and 4) an internet alert system utilizing the LINE application and web-based application information display. The first three parts were to be solar-powered. The design and development effort showed that the system successfully measured water levels along with water quality with speed and precision. Moreover, the system was easy to measure results and was able to alert through the LINE application when water in Khlong Lad Phrao approached critical levels, thereby reducing damage from water levels. Precision testing of the developed water level and quality measurement systems found that precision was in the range of 99.74-99.77%.
Highlights
Khlong Lad Phrao is 24.5 kilometers long, so it is one of the longest canals in Bangkok, Thailand
Khlong Lad Phrao flows through many districts of Bangkok, namely, Sai Mai, Lak Si, Don Mueang, Bang Khen, Chatuchak, Huai Khwang and Wang Thong Lang districts, all combining to 52 communities, 7,314 households, 10,971 families, and 43,116 people
In the design of the system's structure, the electronic circuitry was designed for central processing in each station with connections for microcontrollers, sensors, Internet of Things, the drive system, water level monitoring and water quality monitoring sensors
Summary
Khlong Lad Phrao is 24.5 kilometers long, so it is one of the longest canals in Bangkok, Thailand. Khlong Lad Phrao flows through many districts of Bangkok, namely, Sai Mai, Lak Si, Don Mueang, Bang Khen, Chatuchak, Huai Khwang and Wang Thong Lang districts, all combining to 52 communities, 7,314 households, 10,971 families, and 43,116 people. Many problems such as floods can occur, especially due to house encroachment of canal areas, which lead to water flow problems, community wastes, environmental impacts and water quality problems. Community based survey of problems and contexts of the sampled areas found that most houses located alongside the Revised Manuscript Received on February 15, 2020. Many problems such as floods can occur, especially due to house encroachment of canal areas, which lead to water flow problems, community wastes, environmental impacts and water quality problems. [1,2,3,4,5,6]
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