US Patent No. 10,512,145

LIGHTING SYSTEM AND WIRELESS RELAY METHOD THEREOF


Patent No. 10,512,145
Issue Date December 17, 2019
Title Lighting System And Wireless Relay Method Thereof
Inventorship Kaoru Murakami, Osaka (JP)
Shigeo Nakamura, Osaka (JP)
Tomokazu Yamamoto, Osaka (JP)
Assignee Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)

Claim of US Patent No. 10,512,145

1. A lighting system comprising a first luminaire, a second luminaire, and a wireless controller, wherein:the first luminaire and the second luminaire each include a first communication unit configured to communicate with the wireless controller, and the first luminaire and the second luminaire communicate with each other via the first communication units each being the first communication unit,
the wireless controller includes a second communication unit configured to communicate with the first luminaire and the second luminaire, and a control unit configured to control the first luminaire and the second luminaire via the second communication unit,
the second communication unit is configured to transmit a first signal to the first luminaire and the second luminaire, the first signal instructing the first luminaire and the second luminaire to respond to a request from the wireless controller,
the control unit is configured to, when the first luminaire responds to the first signal and the second luminaire does not respond to the first signal, assign the first luminaire as a relay luminaire and transmit a second signal to the first luminaire, the second signal instructing the first luminaire to wirelessly communicate with the second luminaire via the second communication unit, and
the first luminaire that has received the second signal wirelessly communicates with the second luminaire via the first communication unit.