TERRITORIAL CONTROL SYSTEM FOR TRANSPORTATION OF PARTICULARLY IMPORTANT AND DANGEROUS GOODS Russian patent published in 2017 - IPC G08B25/10 

FIELD: radio engineering, communication.

SUBSTANCE: territorial control system for transport of particularly important and dangerous goods contains equipment located at control center (7), equipment located on special vehicles, and equipment located at control posts. Equipment (1.i) placed on each special vehicle contains a sensor (2.1) of coordinate information, a load sensor (2.2), special sensors (2.3), a coding device (3.i), a registration device (4.i), a radio station (5.i), a transmit-receive antenna (6.i), a identification mark (38.i) (i=1, 2, …, N). Equipment disposed at control center (7) comprises a transmit-receive antenna (8), a radio station (9), a first (10) and a second (14) processors, a comparison unit (11), a coding device (12), an operator workstation (13). Each radio station 9 (5.1) contains a high-frequency generator 15 (15.1), a phase manipulator 16 (16.1), a mixer 21 (21.1), 22 (22.1) and 33 (33.1), a power amplifier 17 (17.1), a duplexer 18 (18.1), a transmit-receive antenna 8 (6.1), the first local oscillator 19 (19.1), phase shifters 20 (20.1) and 25 (25.1), narrowband filters 28 (28.1), 58 (58.1), amplifiers 23 (23.1) and 24 (24.1) of the first intermediate frequency, an amplitude detector 29 (29.1), a key 30 (30.1), multipliers 27 (27.1), 35 (35.1), bandpass filters 36 (36.1), 61 (61.1) and 64 (64.1), a phase detector 37 (37.1), totalizers 26 (26.1), 60 (60.1), 63 (63.1) and 66 (66.1), phase-inverters 59 (59.1), 62 (62.1) and 65 (65.1). Identification label (38.i) contains a piezoelectric crystal (39.i), a transmit-receive antenna (40.i), a set of reflectors (44.i), bus wires(42.i) and (43.i) (i=1, 2, …, N). Scanning device (45.j) comprises a high-frequency generator (46.j), a power amplifier (47.j), a duplexer (48.j), a transmit-receive antenna (49.j), a high-frequency amplifier (50.j), a phase detector (51.j), a computer (52.j), a local oscillator (53.j), a mixer (54.j), an amplifier (55.j) of the third intermediate frequency, a phase manipulator (56.j), a power amplifier (57.j) (i=1, 2, …,M).

EFFECT: increasing the selectivity and noise immunity of radio receivers, the reliability of duplex radio communication between control room and special vehicles by suppressing false signals received through forward channels and intermodulation channels.

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