Visible light communication device, lighting fixture including the same, and lighting system

摘要

The visible light communication device includes a control circuit configured to repeat a transmission process of transmitting a communication signal through modulating an intensity of visible light to be emitted from a light source. The control circuit is configured to, in the transmission process, arbitrarily select a time slot for transmission from a plurality of time slots set within a predetermined time period allocated to the transmission process, and transmit the communication signal in the time slot for transmission.

主权项

1. A visible light communication device, comprising:
a control circuit configured to repeat a transmission process of transmitting a communication signal through modulating an intensity of visible light to be emitted from a light source, the control circuit being configured to, in the transmission process, arbitrarily select a time slot for transmission from a plurality of time slots set within a predetermined time period allocated to the transmission process, and transmit the communication signal in the time slot for transmission, the control circuit stores an algorithm for generating a pseudorandom number based on a seed value; the control circuit is configured to, in the transmission process, generate a pseudorandom number through the algorithm, and select the time slot for transmission based on the generated pseudorandom number; the control circuit stores a unique value uniquely allocated to the visible light communication device; and the control circuit is configured to use the unique value as the seed value.