Receiving device and optical wireless communication system

An optical wireless communication system comprising:

• a transmitting device configured to transmit an optical wireless communication signal;
• and
• a receiving device configured to receive the optical wireless communication signal transmitted from the transmitting device, wherein
• the receiving device is provided with an event camera that detects a rising edge and a falling edge of luminance as events, and is configured to receive the optical wireless communication signal through the event camera,
• a protocol defines how data is represented in the optical wireless communication signal,
• the transmitting device encodes transmission data in accordance with a certain applied protocol to generate the optical wireless communication signal, and
• the receiving device is configured to:
• when start of reception of the optical wireless communication signal is detected, execute a protocol identification process that identifies the applied protocol applied to the received optical wireless communication signal;
• and
• after the protocol identification process, recognize the transmission data represented by the optical wireless communication signal based on the applied protocol.