FIELD: agriculture.
SUBSTANCE: method for determining the mechanical state of agricultural land includes the steps: a) obtaining, using a measuring tool placed in the soil-cultivating element of the agricultural machine, the measured values of the vibration signal, while the said vibration signal is generated as a result of contact of the tillage element with the agricultural land during soil cultivation; b) transmission, by means of communication, of the measured values obtained from the vibration signal, grouped in data packets, to the processor module; c) converting the measured values of the vibration signal, grouped in data packets, into a frequency signal by the processor module; d) deriving a power spectral density (PSD) signal from the frequency signal; e) comparing the first energy profile, which corresponds to the amplitude measured values of the power spectral density of the PSD signal in a certain frequency band, with a plurality of database energy profiles, wherein the plurality of database energy profiles are correlated with different mechanical conditions of the land determined depending on the previous measured values using a penetrometer; and f) determining the mechanical state of the agricultural land by comparing the first energy profile with a plurality of energy profiles that are stored in a database. A system for implementing a method for determining the mechanical state of agricultural land, including: an agricultural machine with at least one tillage element; measuring tools including at least one accelerometer and a gyroscope located in at least one tillage element, configured to measure the vibration signal that is generated as a result of contact of the tillage element with agricultural land during the stage of tillage; the main communication node located in the agricultural machine, made so as to ensure reception of the measured values from the measuring tools; and a remote central server configured to receive information based on the measured values transmitted from the main node of each agricultural machine and to store it in a database that stores a plurality of energy profiles; and a processor module connected to the measuring tools via the main node, designed to ensure that the measured values obtained from the vibration signal are grouped into data packets; convert the measured values of the vibration signal grouped into data packets into a frequency signal; derive power spectral density PSD from the frequency signal; compare the first energy profile, which corresponds to the amplitude measurement of the power spectral density of the PSD signal in a certain frequency band, to a plurality of energy profiles from the database, while the plurality of energy profiles from the database are correlated with different mechanical conditions of the land plot, determined depending on the previous measured values using a penetrometer; and determine the mechanical condition of the agricultural land by comparing the first energy profile with a plurality of energy profiles that are stored in a database.
EFFECT: efficient real-time determination of the mechanical condition of the soil is provided to optimize the use of agricultural implements for preparing the soil for sowing.
15 cl, 4 dwg
