TERRITORIAL SYSTEM FOR CONTROLLING TRANSPORTATION OF VERY IMPORTANT AND DANGEROUS GOODS Russian patent published in 2012 - IPC G08B25/10 

FIELD: physics.

SUBSTANCE: territorial system for controlling transportation of very important and dangerous goods has equipment mounted on each special vehicle and equipment mounted on a control point 7. The equipment 1.i mounted on each special vehicle has a coordinate information sensor 2.1, a sensor 2.2 for the nature of the cargo, special sensors 2.3, user encoding device 3.i, a registration device 4.i, a radio station 5.i with a transceiving antenna 6.i and an identification mark 38.i (i=1, 2, …, n). The equipment mounted on the control point 7 has a radio station 9 with a transceiving antenna 8, a first 10 and a second 14 processor, a comparator unit 11, an encoding device 12 and an operator workstation 13. Each radio station 9 (5.1) has a high frequency generator 15 (15.1), a phase-shift keyer 16 (16.1), a power amplifier 17 (17.1), a duplexer 18 (18.1), a first 19 (19.1) and a second 32 (32.1) heterodyne, a first 20 (20.1) and a second 25 (25.1) 90° phase changer, a first 21 (21.1) and a second 22 (22.1) mixer, a first 23 (23.1) and a second 24 (24.1) first intermediate frequency amplifier, an adder 26 (26.1), a first 27 (27.1) and a second 35 (35.1) multiplier, a first 28 (28.1), a second 61 (61.1) and a third 62 (62.1) narrow-band filter, a first 29 (29.1), a second 66 (66.1) and a third 67 (67.1) amplitude detector, a switch 30 (30,1), a universal frequency converter 31 (31.1), a third mixer 33 (33.1), a second intermediate frequency amplifier 34 (34.1), a band-pass filter 36 (36.1), a phase detector 37 (37.1), a calibrator 58 (58.1), a first 59 (59.1) and a second 60 (60.1) controlled phase changer, a first 65 (65.1) and a second 70 (70.1) inverted amplifier, a second phase detector 63 (63.1), a first 64 (64.1) and a second 69 (69.1) low-pass filter, a subtractor unit 68 (68.1). The identification mark 38.i has a piezoelectric crystal 39.i, a microstrip transceiving antenna 40.i, electrodes 41.i, buses 42.i and 43.i, and a set of reflectors 44.i (i=1, 2, …, n). The scanning device 45.j has a high frequency generator 46.j, a power amplifier 47j, a duplexer 48.j, a transceiving antenna 49.j, a high frequency amplifier 50.j, a phase detector 51.j, a computer 52.j, a heterodyne 53.j, a mixer 54.j, a third intermediate frequency amplifier 55.j, a phase-shift keyer 56.j and a power amplifier 57.j.

EFFECT: high selectivity, noise-immunity and reliability of exchange of discrete information between a control point and special vehicles through complete suppression of false signals received over image channels at frequencies w_z1 and w_z2.

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