US 12,014,694 B1
Passenger guide device for bus stop
Nam Pyo Eun, Gwangju (KR)
Assigned to SAITEC INC., Jeollanam-Do (KR)
Filed by SAITEC INC., Jeollanam-do (KR)
Filed on Jun. 6, 2023, as Appl. No. 18/206,197.
Claims priority of application No. 10-2023-0052199 (KR), filed on Apr. 20, 2023.
Int. Cl. G09G 3/34 (2006.01); G08G 1/127 (2006.01); G09G 3/36 (2006.01)
CPC G09G 3/342 (2013.01) [G08G 1/127 (2013.01); G09G 3/36 (2013.01); G09G 2320/041 (2013.01); G09G 2320/0626 (2013.01); G09G 2320/0686 (2013.01); G09G 2354/00 (2013.01); G09G 2360/144 (2013.01); G09G 2360/16 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A passenger guide device for a bus stop comprising:
a display panel installed at the bus stop and comprising divided backlight modules configured to be able to irradiate light by dividing a display screen region, and a liquid crystal display module configured to display bus service display information by the light irradiated from the divided backlight modules;
an external illuminance detector comprising a plurality of illuminance sensors installed spaced apart from each other along an edge outside the display screen region of the display panel and configured to detect external illuminance; and
a control module configured to control the display panel so that the bus service display information coming from a management server and being received through a terminal communication unit is displayed on the display panel, and to control operations of the divided backlight modules according to the illuminance detected by the external illuminance detector;
wherein the display panel comprises a first divided backlight module responsible for an upper left region among four regions divided into an upper left region, an upper right region, a lower left region, and a lower right region with respect to the display screen region, a second divided backlight module responsible for the upper right region, a third divided backlight module responsible for the lower left region, and a fourth divided backlight module responsible for the lower right region; and
wherein the plurality of illuminance sensors comprise:
a first illuminance sensor installed at a vertically corresponding position along a center of the first divided backlight module, in an upper edge region of the display panel;
a second illuminance sensor installed at a vertically corresponding position along a center of the second divided backlight module, in an upper edge region of the display panel;
a third illuminance sensor installed at a vertically corresponding position along a center of the third divided backlight module, in a lower edge region of the display panel;
a fourth illuminance sensor installed at a vertically corresponding position along a center of the fourth divided backlight module, in a lower edge region of the display panel;
a fifth illuminance sensor installed at a horizontally corresponding position along the center of the first divided backlight module, in a left edge region of the display panel;
a sixth illuminance sensor installed at a horizontally corresponding position along the center of the second divided backlight module, in a right edge region of the display panel;
a seventh illuminance sensor installed at a horizontally corresponding position along the center of the third divided backlight module, in a left edge region of the display panel; and
an eighth illuminance sensor installed at a horizontally corresponding position along the center of the fourth divided backlight module, in a right edge region of the display panel.