CALIBRATION APPARATUS FOR ELECTRIC SIGN BOARD WEAKENING BY TIME PASSED AND CIRCUMSTANCES IN USE

摘要

PURPOSE: A calibrating apparatus of an electronic display board deteriorating by time passing and circumstances in use is provided to calibrate light emitting properties to maintain the quality of the electronic display board similar to the initial quality thereof by detecting deterioration causes. CONSTITUTION: A temperature and humidity sensor(110) is installed on the outside of an LED display board(105). The temperature and humidity sensor collects data about temperature and humidity during operating the LED display board. A calibration controller(120) includes a data memory, a time-based temperature and humidity average calculation unit and a daily data memory. An accumulation calculating unit calculates accumulation by adding up total use time according to the temperature and the humidity. [Reference numerals] (101) Image source; (102) Operation PC; (103) Controller; (104) Local controller; (105) LED display plate; (110) Temperature and humidity sensor; (120) Calibration controller