Forest Fire and Trespassing Detection using WSN with PIR sensor

Fire occurring in forest has become a major crises, the hard part of this is passing information about fire occurred is delay which in turn allow to increase the spread of fire. There are two preeminent reasons on delay, first is place or region in which fire has occurred and the other is passing information about fire to outer world. Forest fire can be controlled using appropriate technique and officials can control the wild fire before spreading, if the information is passed fast. Human trespassing is one of the dominant acumen for wild fires. In order to know the type of the fire depending upon the region and also deportation of data about fire occurred, we framed a lay out, forest fire detector that uses wireless sensor networks. The detector is able to inform us whether it is a crown fire or ground fire depending upon the region using fire sensors and PIR via NodeMCU ESP8266. PIR is used to detect the presence of humans within the preserved regions of wild. The detectors that are connected to the NodeMCU pass the information to tan other NodeMCU using server client configuration. Depending on the type of fire, sprinklers are activated to control ground fire and drones carrying fire resistant dry chemicals are used to spread them from above for crown fire.

The use of a cone calorimeter for the preliminary determination of the extinguishing efficiency of bulk materials

Determining the extinguishing effectiveness of extinguishing agents against solid fires is difficult. This is mainly due to the large variety of combustible materials. These difficulties also concern the determination of the effectiveness of various extinguishing agents for gas, fat and metal fires. However, extinguishing tests for liquid fires are defined very precisely. The tests of the effectiveness of powder materials, such as extinguishing powders, are based on relatively simple and methods used to extinguishers testing. It does not eliminate the very significant impact of the human factor on the test effect. A cone calorimeter was used for comparative evaluation of the extinguishing efficiency of bulk materials. For this purpose, bulk materials e.g. salt, sand and dry chemicals were applied to the surface of standard pine wood samples and the differences in their flammability were examined. Based on the analysis of HRR, weight loss curves and time to achieve flame combustion, it was found that a cone calorimeter can be used to pre-assess the effectiveness of extinguishing the dry powders and dry chemicals for solid fires. There were clear differences between chemical and only physical effects.