METHOD OF FIXING MOMENT OF SEPARATION OF CUT FROM TRAIN AND RADAR SENSOR IMPLEMENTING IT (VERSIONS) Russian patent published in 2024 - IPC B61L1/08 B61L17/00 

FIELD: railway equipment; physics.

SUBSTANCE: invention relates to hump yard automation and telemechanics. In the method, probing microwave radiation is generated by means of an antenna made on the basis of a spherical Luneburg lens, and Doppler frequency signals from cut of cars u^cut and train u^train separately discretized in time and stored in multiple points in time t_k readings of instantaneous values of these signals u^cut, u^train where k=0, 1, 2, … — serial number of readings, then, using a plurality of readings by k, spectra are obtained for each Doppler signal, for which are calculated current values of amplitudes A^cut, A^train and frequencies Ω^cut, Ω^train of first harmonic for signals from cut and train, respectively, further, for the obtained readings of amplitudes A^cut, A^train calculating current values of signal-to-noise ratios q_cut=A^cut/σ_n-1, q_train=A^train/σ_n-2, where σ_n-1,2 — root-mean-square values of intrinsic noise levels at linear outputs of receivers, further, the values of the signal-to-noise ratio q_cut and q_train is compared with the threshold value of the signal-to-noise ratio q_thr and in case of its exceeding q_cut≥q_thr, q_train≥q_thr, coefficient of ratio R_cur of current values of frequencies Ω^cut, Ω^train of the first harmonic is calculated for signals from cut and train respectively by the formula: R_cur=Ω^cut/Ω^train, then current values of coefficient R_cur are compared with a given value of coefficient R_set "set point", in case of inequality R_cur<R_set, decision is made on absence of cut separation from train, and when the inequality R_cur<R set is satisfied, the cut separation from the train is recorded.

EFFECT: higher reliability and accuracy of determining the moment of separation of the cut from the driven train.

7 cl, 3 dwg