Development and evaluation of an IoT network for sensing

Sammanfattning: Sensor networks are being deployed to monitor physical surroundings in a wide range of applications including healthcare, agriculture, education, transportation, home automation, industry, and they are bringing revolutionary change in the innovation area. Wireless Sensor Network (WSNs) offer tremendous potential for increasing the efficiency of many systems. The transmitting of information during an event of an emergency from the physical environment is most important in monitoring applications where the network of sensors is placed. In order to react in a fraction of second in the event of critical situations such as fire, toxic gases leak, or flood, a quick enough system is required. One of the biggest challenges when building a wireless network is choosing a good protocol for the desired application. What are we trying to accomplish? What is the proper protocol for that? There are several communication protocols, and each has a specific focus.The main focus of this thesis is to build a sensor network for measuring air temperature using a wireless communication protocol for said application. Based on the results a conclusion is reached about the energy yield, the communication range, and the connection strength, considering how they affect obstacles, such as the weather conditions or different objects.