Light-emitting sign device and low-power predictive diagnosis bidirectional adaptive control system comprising same
AssigneeAltech Co., Ltd.
InventorsKi Hoon Lee, Sung Su Jo
Life of this patent
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Abstract
A light-emitting sign device according to the present invention comprises: a solar cell; a battery module comprising at least one battery in which power generated by the solar cell is stored; a light-emitting module for emitting light by the power supplied from the battery; a front panel optically coupled to the light-emitting module; and a controller for applying, to the light-emitting module, a target mode determined, from among driving modes, on the basis of an average value of solar cell voltages measured for a certain period with respect to the solar cell and a voltage value of a battery voltage measured at a certain time with respect to the battery module.
Claims15
A light-emitting sign device comprising:
- a solar cell;
- a battery module including at least one battery for storing power generated from the solar cell;
- a light-emitting module configured to emit light from power supplied from the battery;
- a front panel optically coupled to the light-emitting module;
- and
- a controller configured to apply, to the light-emitting module, a target mode determined on a basis of an average value of solar cell voltages of the solar cell measured for a certain period and a voltage value of a battery voltage of the battery module measured at a certain point of time, among driving modes.
A light-emitting sign device comprising:
- a solar cell;
- a battery module including at least one battery for storing power generated from the solar cell;
- a light-emitting nodule configured to emit light from power output from the battery;
- a front panel optically coupled to the light-emitting module;
- and
- a controller comprising an analog-to-digital converter therein,
- wherein the light-emitting module comprises a light-emitting element, an emission control transistor, and a resistor which are connected in series, and
- the analog-to-digital converter is connected to a non-ground electrode of the resistor through a sensing line.
Dependencies are inferred from the claim text.