Abstract: Included is a data management unit that acquires and holds data including map data, sensing data, and repair actual result data, a map display unit that displays information regarding a state of an infrastructure determined on the basis of the sensing data in a superimposed manner on a map image, a repair support unit that predicts a future degree of deterioration of each infrastructure on the basis of data including the sensing data and presents a candidate for an infrastructure to be repaired on the basis of information including the prediction, and an operation/management unit that displays a result of aggregation of the sensing data and maintenance management related data on a dashboard.

Abstract: An image-quality adjustment system for a liquid-crystal projector detects the brightness and color of ambient light, or detects the brightness and color of the surface onto which the liquid-crystal projector projects an image. The image signal is automatically adjusted according to the detected brightness and color. For example, the brightness, contrast, and color balance of the image signal may be adjusted. The intensity of the lamp in the liquid-crystal projector may also be adjusted. A clear and natural image can thus be projected without the need for manual adjustments.

Abstract: An image-quality adjustment system for a liquid-crystal projector detects the brightness and color of ambient light, or detects the brightness and color of the surface onto which the liquid-crystal projector projects an image. The image signal is automatically adjusted according to the detected brightness and color. For example, the brightness, contrast, and color balance of the image signal may be adjusted. The intensity of the lamp in the liquid-crystal projector may also be adjusted. A clear and natural image can thus be projected without the need for manual adjustments.