Collection storage system for mutual isolation between multipath data

Abstract

The invention discloses a collection and storage system for mutual isolation of multi-channel data, including a signal isolation module, a signal following conditioning module, an analog-to-digital converter, an FPGA logic controller, an RS422 decoding module, an optocoupler input module, an RS422 receiver, RS422 transmitter, FLASH storage module and USB interface; Among them, the signal isolation module, signal following conditioning module, analog-to-digital converter, FPGA logic controller are connected in sequence, RS422 decoding module, optocoupler input module, RS422 receiver, RS422 sending The device, the FLASH memory module, and the USB interface are respectively connected to the FPGA logic controller. The invention satisfies the large-capacity and high-speed real-time storage of aircraft telemetry data and ensures reliable recovery of data.

Description

technical field [0001] The invention relates to the technical field of aircraft telemetry, in particular to an acquisition and storage system in which multiple channels of data are mutually isolated. Background technique [0002] In the aerospace measurement and control system, the test of telemetry parameters is of great significance for verifying the design parameters of the aircraft and judging the faults in the test. Tracking measurement, telemetry and remote control system is the basic part of the whole measurement and control system. The advantage of the electronic measurement and control system is that it can track the spacecraft all-weather, and it has good flexibility and sufficient accuracy. From the point of view of system engineering, the data obtained from the tracking and measurement of the spacecraft can be calculated to give information on the trajectory, orbit or position; and the data provided by telemetry can be processed and analyzed to give the state in...

AI Technical Summary

Problems solved by technology

In the traditional data real-time storage system, the data is directly transmitted to the data storage device through the parallel bus, the data line and the data line are not synchronized, and as the storage capacity gradually increases, the bit error rate of the stored data also rises sharply, which cannot meet the requirements of the aircraft. Requirements posed by telemetry systems

Moreover, the signals received by the storage system may interfere with each other, and the interference caused by the digital-analog common ground affects the transmission quality. When a transmission failure occurs in a certain channel, it may cause adverse effects on other circuits of the hardware, and the performance of the storage system is still low. Stable and reliable

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