DEVELOPMENT OF AN IT ARCHITECTURE FOR A WIRELESS SENSOR FOR MONITORING THE STRENGTH OF REINFORCED CONCRETE STRUCTURES

Increased competition, as well as the instability of the global economy in the industry, is forcing construction companies to reduce costs when erecting buildings and structures, ensuring the most attractive price per square metre for consumers. To reduce costs, construction companies are using modern digital technologies in their practices. To date, the most effective and frequently used solution in global practice is the use of maturity sensors which can optimise the pouring and stripping process of reinforced concrete structures. By detecting the moment of concrete strength accurately and in good time, the construction period is reduced, labour costs are reduced and costs are saved accordingly. This paper focuses on the development of an improved IT architecture for maturity sensors. During the initial phase of development, a survey of potential users was carried out, resulting in the basic technical requirements for the sensor. In the course of development, a data exchange scheme was proposed between SSDs and PMs using Star topology, and an energy-efficient LPWAN with LoRaWAN protocol was selected as the wireless communication interface for the system fulfilling the requirements. This solved the main problem of foreign maturity sensor counterparts - simultaneous synchronisation of data from a large number of sensors. LoRaWAN also has a longer range than Bluetooth, which is used in foreign counterparts. As a result of the development of the IT-architecture, all the basic technical requirements drawn up during the survey of potential users were implemented. Since the developed IT architecture provides for the exchange and accumulation of information from multiple sensors, it is possible to create Big Data in the future.

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