Toshiba Lighting & Technology Corporation

Hidenori Nishigaki

Takashi Nakamura

Takayuki Ono

Hitoshi Kawano

Shigehisa Kawatsuru

Makoto Kawagoe

Tomoko Ishiwata

Fumie Iwata

Yoko Noguchi

Junko Takahashi

Katsusuke Uchino

A lighting control system includes a central control apparatus and plural luminaires. A light color of each of the plural luminaires can be changed and each of them is assigned to one of plural groups to which different light colors are assigned or is duplicately assigned to the plural groups. The central control apparatus includes a control part and an output part. The control part generates control signals for controlling the light colors of the plural luminaires and causes a light color of a luminaire overlapping with the plural groups or an adjacent luminaire to become an intermediate light color between the assigned light colors for the respective plural groups when the plural luminaires assigned to the plural groups are lit and controlled. The output part outputs the control signals generated by the control part to the plural luminaires.

Lighting control system and central control apparatus

According to one embodiment, a lighting control system includes a plurality of luminaire, a sensor device, a luminance sensor, and a lighting control unit. The luminaires are set in a lighting space. The sensor device detects presence of a person in the lighting space. The luminance sensor detects indirect luminance in a predetermined position in the lighting space by the luminaire. The lighting control unit subjects the luminaire to lighting control such that the indirect luminance detected by the luminance sensor does not fall below a predetermined value in a position where the sensor device detects presence of the person.

Lighting control system and lighting control method

Plural luminaires are installed in a lighting space surrounded by a wall part. A sensor equipment detects existence or nonexistence of a person in the lighting space. If existence of a person in the lighting space is detected, the sensor equipment detects a direction of the person. The sensor equipment detects a distance between the wall part positioned in front of the direction of the person and the person. A lighting control unit selectively switches between a first control for performing lighting control of the luminaires to illuminate the wall part positioned in front of the direction of the person if the detected distance is a specified distance or less, and a second control for performing lighting control of the luminaires to reduce brightness at a place as the place becomes farther from a position of the person if the detected distance is larger than the specified distance.

Growing community of inventors

Kanagawa, Japan

Hidenori Nishigaki