Indoor lighting device, lighting system and an operating method thereof

Embodiment, in the indoor lighting device is installed in the first space, the light-emitting section; A storage unit to store the driving condition information, the light emitting unit in the operating state of the mobile terminal; A wireless communication unit for a mobile terminal and a wireless communication; And if the mobile terminal is located in the first area with the mobile terminal determines whether or not positioned in the first space, and a control unit for determining a driving condition of said light emitting portion by using the information stored in the storage unit.