The main goal of the paper is to develop a wireless sensor network test-bed that collects information from a set of sensors and forwards information to the remote server. The data on the server will be processed by the software created in Matlab & Simulink. This work describes a method of creating wireless sensor network. Modern standards like IEEE 802.11n and Mobile Network's 5G are used to organize the wireless network. A method is presented, which controls engineering systems of building and delivers rational use of energy resources. The article also describes the architecture of designing a complex wireless network system, which has the connection in real time (online) with automatics and engineering systems of the building. This complex system helps to collect data for the effective intellectual analysis.