Embedded multi-channel data acquisition system for aircraft and control method of embedded multi-channel data acquisition system

Abstract

The invention discloses an embedded multichannel data acquisition system for an aircraft and a control method thereof, and the system comprises a data analysis and management module, a data acquisition and storage module and a timing module, and also comprises a sensor module installed at a target position of the aircraft. The data acquisition and storage module comprises an embedded system chip unit, a DMA (Direct Memory Access) controller, an SATA (Serial Advanced Technology Attachment) disk data storage unit and a PCIE (Peripheral Component Interface Express) to serial port unit, and the embedded system chip unit is respectively connected with the DMA controller, the SATA disk data storage unit and the data analysis and management module; a PCIE interface of the embedded system chip unit is respectively connected with an impact sensor unit and a vibration sensor unit in the sensor module through a PCIE to serial port unit, and a serial port of the embedded system chip unit is respectively connected with a temperature, humidity and pressure sensor unit and a timing system module of the sensor module. The problem that the number of serial ports is insufficient is solved, and the transmission rate requirements of different types of sensors are met.

Description

technical field [0001] The invention relates to the field of data acquisition, in particular to an embedded multi-channel data acquisition system for an aircraft and a control method thereof. Background technique [0002] With the rapid development of aerospace science and technology, it is required to analyze and record the state of the aircraft and the flight environment during the flight, which provides an important reference for improving the design of the aircraft. For example, the vibration, shock, temperature, humidity and pressure parameters of the aircraft during flight will affect the The research on the fatigue life of aircraft and safe flight provides a reference, so the accuracy of the acquisition equipment and the coverage of the acquisition are particularly important. [0003] Embedded system consists of hardware and software. It is a device that can operate independently. Its software content only includes the software operating environment and its operating...

AI Technical Summary

Problems solved by technology

The embedded multi-channel data acquisition system greatly saves the space requirements for data acquisition equipment, but the number of serial ports of the embedded system chip itself is limited, and in order to collect the vibration, impact, temperature, humidity and pressure parameters of the aircraft during the flight, i

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