Airborne hovering indicator

Abstract

The invention provides an airborne hovering indicator, which mainly solves the problems of low airborne speed indication precision and poor environmental adaptability in the prior art. According to the scheme, the functions of digital receiving, fault detection, night vision compatibility, electromagnetic compatibility and online upgrading are added on the basis that an existing analog input mode is reserved. The structure comprises a power supply circuit board, a processor circuit board and a display assembly. The power supply circuit board carries out EMI filtering surge and numerical value conversion processing on the input DC voltage and then outputs the processed DC voltage to the processor circuit board and the display assembly. The processor circuit board judges the state of a signal input by the radar on the aerial carrier, analyzes the speed of the aerial carrier, processes the speed and outputs the processed speed to the display assembly for display. According to the invention, the triaxial speed and radar state information of the aerial carrier measured by the Doppler radar are received, and the triaxial low speed of the aerial carrier in a hovering state is indicated in real time in a pointer mode after processing, so that the indication precision is improved, the requirements of electromagnetic compatibility and night vision green are met, and the airborne hovering indicator can be used for a Doppler navigation system.

Description

technical field [0001] The invention belongs to the technical field of instruments and meters, in particular to a hovering indicator which can be used in a Doppler navigation system. Background technique [0002] The airborne hovering indicator is an instrument device that indicates the hovering speed by receiving the three-axis speed data provided by the Doppler radar. It has a digital display interface and can intuitively display the carrier speed in the vertical direction, forward direction and lateral direction . At the same time, it also has the functions of night vision compatibility, fault detection and firmware upgrade at runtime. [0003] At present, most of the hovering indication devices are mechanical pointer or analog, among which: [0004] Mechanical Pointer The mechanical type adopts the design of the electromagnetic moving coil pointer structure, and the pointer deflects through the coil to indicate the current speed value and the search lock state of the r...

AI Technical Summary

Problems solved by technology

Due to the large structural error, this analog type is not conducive to the pilot's judgment of the current hovering state of the carrier aircraft; at the same time, due to the poor electromagnetic compatibility, it is difficult to adapt to relatively complex environmental requirements; The defect that the software cannot be upgraded online by itself is not conducive to the maintenance of the system and equipment itself

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