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Chinese Journal of Lasers, Volume. 44, Issue 10, 1006003(2017)

Moving Target Positioning Method Based on Visible Light Communication in Time Division Multiplexing Network

Chen Yong1, Li Yichao1, and Liu Huanlin2
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
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    References (22)
    Cited By (4)
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    System model

    Fig. 1. System model

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    Schematic of time slot synchronization error of LEDs

    Fig. 2. Schematic of time slot synchronization error of LEDs

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    Schematic of cellular topology layout and cell partition

    Fig. 3. Schematic of cellular topology layout and cell partition

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    Location error distribution of mean method and mean model algorithm

    Fig. 4. Location error distribution of mean method and mean model algorithm

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    Improved algorithm of TDM network

    Fig. 5. Improved algorithm of TDM network

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    Time delay of two TMD positioning systems with different numbers of LEDs

    Fig. 6. Time delay of two TMD positioning systems with different numbers of LEDs

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    Comparison of positioning error of improved and conventional TDM positioning systems when object is static

    Fig. 7. Comparison of positioning error of improved and conventional TDM positioning systems when object is static

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    Positioning error distribution diagram of improved and conventional TDM positioning systems

    Fig. 8. Positioning error distribution diagram of improved and conventional TDM positioning systems

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    Positioning error of improved and conventional TMD positioning systems at moving speed of 1 m·s-1

    Fig. 9. Positioning error of improved and conventional TMD positioning systems at moving speed of 1 m·s-1

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    Positioning error of terminal at moving speed of 0-500 cm·s-1

    Fig. 10. Positioning error of terminal at moving speed of 0-500 cm·s-1

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    • Table 1. Simulation parameters

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      Table 1. Simulation parameters

      ParameterValue
      LED power /W16
      Modulation bandwidth B /kHz640
      Receiver height /m1
      Field-of-view (FOV) ψFOV /(°)70
      Physical area of photo-detector A /cm21
      Gain of optical filter Ts(Ψ)1
      Conversion efficiency γ / (A·W-1)0.54
      Room size /m×m×m8×8×4
      LED number39
      Cell number11

    • Table 2. Comparison of mean model positioning methods with improved and conventional TDM

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      Table 2. Comparison of mean model positioning methods with improved and conventional TDM

      MethodIbg=5.1 mAIbg=10.2 μA
      MDEDERMDEDER
      Improved TDM3.3951.944.0095.868
      Conventional TDM5.2042.592.7064.371
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    Chen Yong, Li Yichao, Liu Huanlin. Moving Target Positioning Method Based on Visible Light Communication in Time Division Multiplexing Network[J]. Chinese Journal of Lasers, 2017, 44(10): 1006003

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    Paper Information

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    Received: Mar. 27, 2017

    Accepted: --

    Published Online: Oct. 18, 2017

    The Author Email:

    DOI:10.3788/CJL201744.1006003

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology