BASE STATION MODULE FOR RECEIVING AND TRAMSMITTING DATA ON THE PHYSIOLOGICAL STATE OF CATTLE
The digital transformation of agriculture and animal husbandry, in particular, involves, along with the development of sensors for the physiological state of cattle, the development of modular radio-technical digital devices for receiving and transmitting data. The developed module of the base station receives and transmits signals from bolus sensors located in the animal's rumen according to three main parameters (acidity, pH; temperature; motor activity). The base station module consists of two parts connected by cables: a Raspberry Pi 4 minicomputer, which acts as a control device, and an external data transmission module, which includes a transceiver for communication with bolus sensors mounted on animals and a GSM module for Internet access and communication with the server. The analysis of these basic parameters makes it possible to monitor the physiological state of animals using the developed software according to the corresponding correlation relationships. The authors have developed basic electrical and structural diagrams of the data transmission module as part of the base station. Also, the article presents a block diagram of the logical structure of the base station software. A test program has been developed that includes checking signal levels in various types of rooms using sensor simulators-boluses. Tests have shown that the signal level measured in the rooms under consideration at various heights does not exceed the minimum permissible signal level -70 dB. The experimental results have established a relatively uniform signal level distribution in the room and increased heterogeneity in the corners, which makes it possible to find a compromise between the system parameters and make the necessary analyses to predict the performance of the entire complex.