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This paper proposes LightBib, a novel marathoner recognition system utilizing visible light communications (VLC). In our system, each runner wears a pair of light strips which transmits the runner's ID with VLC, while cameras set along the running route can be used to decode the runner's ID from the pixels in the captured images. Our transmitter utilizes a frequency shift keying modulation, sending...
Recently, it has been found that Vehicular Visible Light Communications (V2LC) can effectively address several challenges faced by conventional Radio-Frequency-based (RF-based) vehicular communications. Utilizing the LED headlamps and taillights as the transmitter and a photodiode as the receiver, V2LC has high reliability even in high vehicle density scenarios, can effectively identify the transmitter...
Based on the efficiency model of the BUCK PFC(Power Factor Correction) LED(Light Emitting Diode) driver circuit, the theory analysis of the inductor optimal design is proposed in this paper, where the inductor operates in BCM(Boundary Conduction Mode). Considering about the frequency performance and EMI (Electro Magnetic Interference) of the driver circuit, the boundary condition of the frequency...
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