A test platform and method for flying reference system based on pxi bus
A technology of flying reference system and test platform, which is applied in the field of flying reference system test platform based on PXI bus, can solve the problems of single signal type, waste of resources, complex system, etc., and achieve signal parallel connection, cost reduction and advanced technology Effect
Active Publication Date: 2020-05-19
SHAANXI QIANSHAN AVIONICS
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Problems solved by technology
[0003] At present, the test of the flying reference system usually adopts the general test equipment based on the VXI bus or PCI bus suitable for the test of the flying reference system, which has a single type of signal, insufficient number of signal channels, and the test equipment is large in size, heavy in weight, and inconvenient to move. characteristics, high cost, backward technology, complex system, often resulting in waste of resources and insufficient verification of the flight reference system.
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[0021] Below in conjunction with accompanying drawing the present invention is described in further detail, please refer to Figure 1-3 .
[0022] The invention relates to a PXI bus-based flight reference system test platform, which is based on the PXI bus as a hardware platform, and includes PXI test equipment, a power control box, a DC-controlled stabilized voltage power supply, a KVM display, a shock-absorbing chassis, and a drawer.
[0023] The PXI test equipment takes the PXI controller as the core, and the PXI controller uses the internal PXI bus to control the frequency module, DC analog module, HDLC bus module, RS-422 bus module, HB-6096 bus module, DFTI and Harvard code bus module , signal acquisition module, switch module, multi-function module, synchronizer module and other signal modules, output the simulation signals required by various flight reference systems, and all modules are installed on the backplane, and the power supply module provides each signal throug...
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The invention belongs to the field of avionics testing, and relates to a test platform and method for a flight reference system based on a PXI bus. At present, the test of the flying reference system usually adopts the general test equipment based on the VXI bus or PCI bus suitable for the test of the flying reference system, which has a single type of signal and insufficient number of signal channels. The flying reference system test platform based on the PXI bus of the present invention includes a PXI test device, a power control box, a direct-current program-controlled stabilized power supply, and a KVM display. Based on the test platform of the flight reference system, the PXI controller drives each module on the PXI bus to output simulation signals to the flight reference system, downloads the data recorded by the flight reference system, and compares it with the original uploaded data. The cost is reduced, and it provides functions such as real-time dynamic simulation of signals, signal synchronization simulation, and switch value threshold testing.
Description
technical field [0001] The invention belongs to the field of avionics testing, and relates to a test platform and method for a flight reference system based on a PXI bus. Background technique [0002] The flight reference system is a device that automatically collects and records various flight data, audio data and video data according to the agreed format during the flight of the aircraft. These data reflect the working status of the aircraft and the operation of the pilot during the flight. The performance, quality, and accuracy of recorded data of the flight reference system directly affect the daily maintenance of the aircraft, the elimination of hidden troubles, the development of new models, and the search and rescue of aircraft crashes. [0003] At present, the test of the flying reference system usually adopts the general test equipment based on the VXI bus or PCI bus suitable for the test of the flying reference system, which has a single type of signal, insufficien...
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IPC IPC(8): B64F5/60
CPCB64F5/60
Inventor 孙爱国刘生桂田博
Owner SHAANXI QIANSHAN AVIONICS