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SOB-based aircraft remote measurement combo and remote measurement system

A telemetry system and aircraft technology, applied in transmission systems, signal transmission systems, instruments, etc., can solve the problems that aircraft cannot provide power and wireless channel resources are not fully utilized

Active Publication Date: 2017-01-04
BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE +1
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AI Technical Summary

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

Method used

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  • SOB-based aircraft remote measurement combo and remote measurement system
  • SOB-based aircraft remote measurement combo and remote measurement system
  • SOB-based aircraft remote measurement combo and remote measurement system

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Embodiment 1

[0089] The central logic controller adopts XC6SLX45-L1CSGG324I of XILINX Company.

[0090] like Figure 4 Shown is the principle block diagram of the composition of the telemetry combination in the embodiment of the present invention, and the analog signal acquisition module is composed of an analog signal conditioning, an electronic switch and an ADC. It is necessary to collect 31 channels of analog signals, so two pieces of ADG706 are selected; the ADC chip is AD7655t; the analog signal is adjusted to meet the input requirements of the ADC through the operational amplifier. The conditioning circuit finishes conditioning the analog signals of 0-28V, 0-5V and 0-0.5V.

[0091] For receiving image data, the interface chip MAX9234 chip is selected, and the DC balance mode AC coupling method of the chip is adopted. The specific circuit is as follows Figure 5 shown. The interface chip selected for the serial interface is MAX490, which is duplex mode; the communication rate is 9...

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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 and a telemetry system based on SOB technology, and belongs 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 of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08G08C17/02
CPCG08C17/02H04L67/12
Inventor 闫新峰耿健王强姜磊金文刘志轩刘佳琪孟刚王煊李骥王杨吴昭辉赵洋刘举涛孙涛程永生
Owner BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE
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