MONITOR UNIT OF TWO ATTITUDE-AND-HEADING REFERENCE SYSTEMS Russian patent published in 2004 - IPC

FIELD: radio engineering, in particular, avionics, applicable for continuous monitoring of output signals of two attutude-and0heading reference systems by heading, bank and pitch angles, as well as for monitoring of synchronously rotating shafts, remote transmissions, etc. SUBSTANCE: the monitoring unit has output signal transmitters, type CKBT, phase-sensitive detectors and a comparator, three bank, pitch and heading monitoring sub-channels. Each sub-channel for processing of signals of a separate CKBT transmitter has a hull detector, two SSD(sample and storage device), information busbars, record/readout busbar and a reference voltage busbar, each sub-channel for processing of signals has a microcontroller. The outputs of the sine and cosine windings of the first CKBT transmitter are connected to the first and second information inputs of the microcontroller via the first and second phase-sensitive detectors respectively. The outputs of the sine and cosine windings of the first CKBT transmitter are connected to the fourth and fifth information inputs of the microcontroller via the first and second SSD respectively. The reference voltage busbar (port side) is connected to the reference voltage inputs of the first and second phase-sensitive detectors and to the input of the hull detector, whose output is connected to the third information input of the microcontroller. The microcontroller via the first record/readout busbar is connected to the control inputs of both SSD. The outputs of the sine and cosine windings of the second CKBT transmitter are connected to the same microcontroller via the respective couplings, identically to the first CKBT transmitter. One output of the microcontroller is connected to the emergency-warming annunciator by "discrepancy" signals. The other outputs of the microcontroller for the bank and pitch channels are connected by "steep bank limit port side" and "pitch dive", "bank limit starboards" and "pitch-up" signals respectively. EFFECT: enhanced reliability of the device, enhanced accuracy of determination of discrepancy at all destabilizing factors, as well as reduced dimensional and mass characteristics of the device and power consumption. 2 cl, 3 dwg