The article describes an algorithm for regulating the quantity of slots in the implementation of the anti-collision protocol Q when it is used in information systems for the international goods transportation. The purpose of the study is to develop and substantiate an algorithm for regulating the number of slots when implementing the anti-collision protocol Q in information systems for international goods transportation. Results. An appropriate algorithm was proposed, which differs from existing solutions in fewer required variables and fewer operations required to calculate the number of slots. This algorithm should help to decrease the time needed to transfer information from RFID tags to information systems for international goods transportation. Upon condition an equal quantity of frames, the proposed algorithm reduces the total number of operations to determine the number of slots that will be required to read a set of RFID tags by 16.7%. The algorithm is applicable due to the fulfillment of the requirement to achieve maximum system efficiency not lower than for existing solutions, which was proved with simulation modeling. Practical significance: the results obtained can be used to ensure the availability of information when information from RFID tags enters the information systems for the international transportation of goods, as state information systems. The results can be used by customs authorities in the development of information support for labeling and traceability systems
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