An apparatus for controlling an operation of a road stud, the apparatus comprising:
- a light emitting unit of the road stud;
- a power supply unit configured to supply power to the light emitting unit;
- an illumination sensor unit configured to apply a voltage corresponding to a peripheral illumination of the road stud;
- a reference-voltage generating unit configured to apply a reference voltage corresponding to a reference illumination of the road stud;
- a light emitting control unit configured to interrupt supply of power to the light emitting unit when the peripheral illumination of the road stud is equal to or more than the reference illumination, and configured to allow the supply of the power to the light emitting unit only when the peripheral illumination of the road stud is less than the reference illumination, based on a result comparing the applied voltage of the illumination sensor unit with the reference voltage of the reference-voltage generating unit, thus performing a flickering control mode of the light emitting unit and thereby carrying out a sight guidance operation of the road stud;
- and
- a road stud type-identification unit identifying the road stud as a pavement stud if the peripheral illumination of the road stud is more than a first preset illumination and is equal to or less than a second preset illumination of an illumination value that is larger than the first preset illumination, and identifying the road stud as a tunnel stud if the peripheral illumination of the road stud is equal to or less than the first preset illumination, when it is determined whether the peripheral illumination of the road stud is more than the first preset illumination and the peripheral illumination is compared with the second preset illumination of the illumination value that is larger than the first preset illumination,
- wherein, in a first mode set by a user when he or she manipulates a key, the light emitting control unit periodically and repeatedly performs a watch dog mode and a sleep mode at a preset time interval to perform a flickering operation of the light emitting unit,
- the light emitting control unit performs a pavement-stud flickering control mode in which, if the road stud type identified by the road stud type-identification unit is the pavement stud, in the watch dog mode, the supply of the power to the light emitting unit is interrupted when the peripheral illumination of the road stud is equal to or more than the reference illumination;
- and the supply of the power from the power supply unit to the light emitting unit is allowed and is maintained for a preset time, the supply of the power from the power supply unit to the light emitting unit is interrupted and then the light emitting control unit performs the sleep mode when the peripheral illumination of the road stud is less than the reference illumination, and,
- the light emitting control unit performs a tunnel-stud flickering control mode in which, if the road stud type identified by the road stud type-identification unit is the tunnel stud, in the watch dog mode, the supply of the power to the light emitting unit is forcibly allowed and is maintained for a preset time, the supply of the power from the power supply unit to the light emitting unit is interrupted and then the light emitting control unit performs the sleep mode.