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Short-range visible light ranging and detecting system using illumination light emitting diodes

Short-range visible light ranging and detecting system using illumination light emitting diodes

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A visible light object ranging and detecting system utilising light emitting diodes (LEDs) is proposed and investigated. The LEDs are used not only as illuminating devices but also as ranging and detecting sensors. LED is intensity modulated with a predetermined sinusoid signal at a certain frequency with an initial phase. After propagation, the backscatter signals from the object are received and detected. The direction of the object is estimated by an optical imaging receiver. The distance between the object and the LED is obtained based on a differential phase-shift measurement. The theoretical model of the system is derived and evaluated, and the fundamental channel characteristics of the proposed system are simulated and analysed. The numerical results show that with a proper design, the presence or position of an object can be identified with a detection range of up to ∼6 m, with an estimation error as small as ∼5 cm for the system employing commercially available illumination LEDs.


    1. 1)
    2. 2)
    3. 3)
    4. 4)
      • 26. Kuo, Y.-S., Pannuto, P., Hsiao, K.-J., et al: ‘Luxapose: indoor positioning with mobile phones and visible light’. Proc. of the 20th Annual Int. Conf. on Mobile Computing and Networking, Maui, Hawaii, USA, 2014.
    5. 5)
    6. 6)
      • 27. Barry, J.R.: ‘Wireless infrared communications’ (Kluwer Academic Publishers, Boston, 1994).
    7. 7)
      • 21. Yongtae, D., Jongman, K.: ‘Infrared range sensor array for 3D sensing in robotic applications’, Int. J. Adv. Robot. Syst., 2013, 10, pp. 19.
    8. 8)
    9. 9)
    10. 10)
    11. 11)
    12. 12)
      • 9. Trong-Hop, D., Junho, H., Myungsik, Y.: ‘TDoA based indoor visible light positioning systems’. 2013 Fifth Int. Conf. on Ubiquitous and Future Networks (ICUFN), 2013, pp. 456458.
    13. 13)
    14. 14)
    15. 15)
    16. 16)
    17. 17)
    18. 18)
      • 1. Ghassemlooy, Z., Popoola, W., Rajbhandari, S.: ‘Optical wireless communication: system and channel modeling with MATLAB’ (CRC Press, Newcastle upon Tyne, 2012).
    19. 19)
      • 28. Marszalec, J.A.: ‘Modelling and simulation of an angular scan LED array-based range imaging sensor’. Proc. of the 1993 IEEE/RSJ Int. Conf. on Intelligent Robots and Systems ‘93, IROS‘93., 1993, pp. 18371844.
    20. 20)
    21. 21)
    22. 22)
    23. 23)
    24. 24)
      • 22. Safety of laser products – ‘Part 1: Equipment classification and requirements’,The European Standard, EN 60825-1:2007: IEC 2007, 2007.
    25. 25)
    26. 26)
    27. 27)
      • 4. Le-Minh, H., Ghassemlooy, Z., O'Brien, D., et al: ‘Indoor gigabit optical wireless communications: challenges and possibilities’. 2010 12th Int. Conf. on Transparent Optical Networks (ICTON), 2010, pp. 16.
    28. 28)
    29. 29)
      • 16. Roehrig, C., Hess, D., Kirsch, C., et al: ‘Localization of an omnidirectional transport robot using IEEE 802.15.4a ranging and laser range finder’. 2010 IEEE/RSJ Int. Conf. on Intelligent Robots and Systems (IROS), , 2010, pp. 37983803.
    30. 30)
      • 6. Wu, D., Ghassemlooy, W.D., Le-Minh, H., et al: ‘Power distribution and q-factor analysis of diffuse cellular indoor visible light communication systems’. European Conf. on Networks and Optical Communications (NOC), Newcastle Upon Tyne UK, 2011, pp. 2831.
    31. 31)
    32. 32)
      • 8. Luo, P., Ghassemlooy, Z., Le-Minh, H., et al: ‘Experimental demonstration of an indoor visible light communication positioning system using dual-tone multi-frequency technique’. 2014 Third Int. Workshop in Optical Wireless Communications (IWOW), 2014, pp. 5559.

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