AEROSPACE SHANGHAI, Volume. 41, Issue 5, 178(2024)

Fusion Application of Knowledge Graph and Big Language Model to Aerospace TT&C Question-answering System

Yan SUN*... Lixin ZHOU, Lianjun SUN, Bin YE and Guolin WANG |Show fewer author(s)
Author Affiliations
  • Unit 63726 of PLA,Yinchuan750004, , China
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    Figures & Tables(15)
    Structure diagram of the BiLSTM-CRF model
    Structure diagram of the 1DCNN section
    Structure diagram of a knowledge map sample
    Bypass diagram of the LoRA strategy
    Prompt template
    Training loss curve of each model
    Training loss curve of each model
    Model training confusion matrix
    Accuracy of aerospace tracking,telemetering,and command (TT&C) knowledge dialogue after model fine-tuning
    System application interface
    • Table 1. Selected text samples

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      Table 1. Selected text samples

      数据来源数据类型选用内容
      设备教材非结构化装备部件功能、指标、组成等
      维护手册非结构化日维护、周维护、季度维护等
      故障汇编非结构化故障现象、原因、解决措施等
      故障数据库半结构化故障现象、原因、解决措施等
    • Table 2. Relational category list

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      Table 2. Relational category list

      种类数关系类别
      15

      专业-系统、系统-单机、单机-板件、板件-接口、接口-接口、系统-指标、单机-指标、接口-指标、单机-故障现象、

      单机-故障原因、单机-故障解决措施、系统-维护内容、单机-维护内容、板件-维护内容、接口-维护内容

    • Table 3. Format example of fine-tuning data samples

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      Table 3. Format example of fine-tuning data samples

      序号样本
      1{“instruction”:介绍一下航天测控的含义?,“input”:“”,“output”:航天器测控是对航天器进行跟踪测轨,遥测和遥控的简称。是指对航天器飞行和工作状态进行跟踪、测量和控制的活动。主要采用光学和无线电设备实施。}
      2{“instruction”:伺服电机最高转速是多少?,“input”:“ ”,“output”:伺服电机从静止加速到工作转速需要200~400 ms。从静止加速到其额定转速3 000 r/min仅需几毫秒,可用于要求快速启停的控制场合。}
    • Table 4. Computer hardware configuration

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      Table 4. Computer hardware configuration

      序号配置项参数
      1操作系统Windows10
      2内存256G
      3CPUInter(R)Xeon(R)Sliver4210R CPU@2.4GHZ
      4GPURTX4090 24G
      5NVIDIA驱动版本457.51
    • Table 5. Comparison of model training results

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      Table 5. Comparison of model training results

      序号方法PRF1
      1HMM0.845 90.843 60.850 1
      2BiLSTM0.898 60.897 60.897 1
      3BiLSTM-CRFF0.929 40.919 80.931 3
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    Yan SUN, Lixin ZHOU, Lianjun SUN, Bin YE, Guolin WANG. Fusion Application of Knowledge Graph and Big Language Model to Aerospace TT&C Question-answering System[J]. AEROSPACE SHANGHAI, 2024, 41(5): 178

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    Paper Information

    Category: Speciality Discussion

    Received: Oct. 15, 2023

    Accepted: --

    Published Online: Jan. 15, 2025

    The Author Email:

    DOI:10.19328/j.cnki.2096-8655.2024.05.020

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