Abstract
Conflagration is an unpredictable tragedy. It may occur whether in the woodland areas or in the residential areas. Typically, it would only be recognized if indeed the flames spread and the smoke intensified. This study aims to detect fires using the MQ-2 smoke sensor, DS18b20 temperature sensor, and fire sensor. Using Arduino Uno as the controller, this system’s output is in the form of an alarm buzzer, Short Message Service (SMS) information using SIM800L, and an automatic fire pump. This system operates to detect the temperature shifts, the smoke concentration and the existence of a fire point which triggers an alarm in the form of a siren if two out of the three sensors are activated. It, then, sends information by Short Message Service (SMS) and automatically triggers the pump as the result. The fire sensor can detect hotspots with a maximum distance of 80 cm and the DS18b20 temperature sensor has an average reading error of 0.27 ° C with a maximum reading error of 0.5 ° C. The MQ-2 smoke sensor can detect smoke where the change in smoke concentration is directly proportional to the sensor output voltage. There are three conditions to determine fire conditions, namely the temperature sensor reads more than equal to 55 ° C and the fire sensor is active, or the temperature sensor reads more than equal to 55 ° C and the smoke sensor reads more than equal to 1000 ppm, or the fire sensor is active and smoke sensor reads greater than equal to 1000 ppm.
Highlights
Fire is an oxidation process of three elements air, fuel, and heat source [1]
This research using several censors consisting of a DS18b20 temperature censor, MQ-2 smoke censor and flame censor
Arduino Uno is used as a data processor which will receive data from censors and will be processed to determine conditions that are indicated as conflagration
Summary
Conflagration is an unpredictable tragedy [2] This disaster can occur in the forest areas as well as in residential areas, this incident is not expected by the community because it will cause material, psychological losses and allow for casualties. The fires in urban areas are generally caused by an electrical short circuit (short circuit) on the power cable, a leak in the LPG gas cylinder pipe, or human negligence, such as throwing cigarette butts carelessly. Apart from those caused by human factors, fire disasters can be caused by natural factors such as lightning, earthquakes, volcanic eruptions, long droughts etc [3]. The community worked together to extinguish before the firefighters arrived, the real fact that, the problems were often occurred when firefighters arrive at the location are due to several factors, are delay in information, congested roads to the location, areas that are difficult to reach and the readiness of the officers [3]
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