An aircraft telemetry combination device and telemetry system based on sob technology

Abstract

The invention relates to an SOB-based aircraft remote measurement combo and remote measurement system. The remote measurement combo comprises a central logic control module, a data collection module, a power management module, a storage module and a physical interface. The central logic control module receives a digital signal from the data collection module, receives external serial data through a physical interface at the same time, carries out first frame encoding processing of the digital signal and the serial data, and saves the data subjected to the first frame encoding processing in the storage module. After second frame encoding processing is started, the central logic control module reads data from the storage module for the second frame encoding processing and converts the parallel data subjected to the second frame encoding processing into a PCM code stream and sends the PCM code stream to an external transmitter. Under the prerequisite of ensuring real-time recording of remote measurement data, the remote measurement combo and the remote measurement system can obtain higher remote data reception robustness, improve the reliability of remote measurement downward-transmission and the controllability of remote data transmission, and reduce the probability of important data losses.

Description

technical field [0001] The invention relates to an aircraft telemetry combination device and a telemetry system based on SOB technology, belonging to the technical field of aircraft telemetry systems. Background technique [0002] The telemetry system completes the collection and storage of various environmental parameters, external system working status and interactive data during the flight of the aircraft. The system composition generally includes modules such as power supply, power conversion, acquisition and encoding, interface control, memory, and data integration. In most current aircraft telemetry systems, the above functional modules are implemented by different devices, and the interconnection between devices is realized through the cable network. [0003] There are some deficiencies in the implementation of the above-mentioned telemetry system, including: (1) the use of discrete equipment and cable networks imposes certain requirements on the installation space o...

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Problems solved by technology

[0005] The above-mentioned transmission strategy also has some shortcomings in some occasions, such as: (1) With the continuous improvement of wireless transmission capabilities, the maximum transmission capacity of wireless transmission systems is much larger than the total amount of data that needs to be downloaded by telemetry. The way of downloading one time does not make full use of wireless channel resources; (2) The way of wireless devices working all the way needs sufficient power supply guarantee, and in some cases the aircraft cannot provide sufficient power

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