Читать книгу Design and Development of Efficient Energy Systems - Группа авторов - Страница 53

A sewer system is an underground system of pipes commonly used to transport wastewater from homes and businesses either to a treatment facility, where the water is treated and released into natural water bodies like lakes and streams or in a river to permanently drain out from the area. The sewer manhole is one of the most important parts of the sewer system. A sewer manhole is a structure through which a person can gain access to the underground wastewater collection system. Manholes are not designed for someone to work in regularly, but workers may need to enter the manhole to complete their jobs such as cleaning, repair, inspection, etc. The neglect of sewage systems is responsible for the deaths of thousands of sewage cleaners throughout the year from accidents and various diseases such as hepatitis and typhoid due to sudden or sustained exposure to hazardous gases like carbon monoxide, hydrogen sulphide, and methane. A better knowledge of hazards in the surroundings is necessary for the prevention of poisonous gases. These gases have to be kept on track so that an enormous rise in the normal level of effluents should be known and corrective measures taken.

Figure 3.1 Architecture of the proposed system.

The first step of the proposed system is to detect sewer gas level. A gas sensor can be used to detect the level of the gas. The level of Carbon Monoxide, Hydrogen sulphide and Methane has been measured using a gas sensor. The sensor data is fed to the proposed Tristate pattern. This pattern trains the data based on continues 3 ones and predicts the threshold for each gas. If the level exceeds the threshold value then it gives the alert.