ATMOSPHERIC INFORMATION BOARD

摘要

PROBLEM TO BE SOLVED: To solve a problem that whether an atmospheric status is a clean status suitable for life or a dirty status can not be determined only by observing a numerical value since general technique for displaying a degree of contamination in the conventional manner only displays a name and the numerical value of a contaminant by red and yellow-green LEDs.

SOLUTION: This atmospheric information board is an information board 1 on which light blue and red LEDs are arranged like a matrix and which displays atmospheric information by patterns and characters using light blue, red and white as a mixed color of them and provided with a signal input means 36 for inputting a signal regarding a atmospheric contamination degree of an area where the information board is installed and a storage means 32 for storing a pattern based on the light blue and white which is displayed when the atmospheric contamination degree inputted by the signal input means is equal to or lower than a preset reference value and a pattern based on red which is displayed when the atmospheric contamination degree is equal to or higher than the preset reference value.

COPYRIGHT: (C)2005,JPO&NCIPI