Patent ID: 9743495
Date: 2017-08-22
CPC Classifications: G08B,H05B,Y02B

Claim:
1. A lighting control device for managing night illumination of a lighting load, comprising: at least one controllable switching element, electrically connectable between the lighting load and a power source; a motion sensor, for detecting a motion intrusion to activate the lighting load; at least one external control unit for controlling lighting performances of the lighting load; and a microcontroller, electrically coupled to the controllable switching element and the external control unit; wherein the microcontroller controls a conduction state of the controllable switching element to transmit electric power to the lighting load; wherein the external control unit generates an external control signal readable and interpretable to the microcontroller for performing a lifestyle lighting management; wherein upon receiving the external control signal the microcontroller operates to activate corresponding subroutines to establish three preset operating time points to divide a daily 24 hour cycle period into three operating time domains for performing different illumination modes; wherein a first operating time domain starts from a first preset operating time point to a second preset operating time point, a second operating time domain starts from the second preset operating time point to a third preset operating time point, and a third operating time domain starts from the third preset operating time point to the first preset operating time point; wherein during the first operating time domain the microcontroller operates a first subroutine to perform a first illumination mode, during the second operating time domain the microcontroller operates a second subroutine to perform a second illumination mode, and during the third operating time domain the microcontroller operates a third subroutine to perform a third illumination mode; wherein the second illumination mode is a power saving mode with an illumination level being reduced to a turned off state or a state of a low level illumination incorporating with the motion sensor activated for performing a second high level illumination for a second predetermined time period upon detecting the motion intrusion; wherein the illumination level of the second high level illumination is higher than the illumination level of the low level illumination; wherein the second illumination mode is an user friendly illumination mode; wherein when the motion intrusion is detected during the second operating time domain, the lighting load is slowly turned on to the second high level illumination (a soft on process) over a first predetermined time interval for the second predetermined time period and then the illumination level is slowly reduced back to the turned off state or the state of the low level illumination (a soft off process) over a second predetermined time interval in the absence of a new motion intrusion detected; wherein the soft on process is designed with a purpose of avoiding or mitigating a hardship of an eye-irritating effect caused by a sudden switch-on of a bright environment thru a slow increase process; wherein the soft off process is designed with the purpose of providing a delay shut off illumination solution to help the user walking back to a room with a safety illumination arrangement; wherein the soft off process is also usable in the first illumination mode; wherein the user is in need of the safety illumination arrangement to help a safe departure before the light is completely turned off, and the power saving mode continues till reaching the third preset operating time point at which the lighting load is managed to perform the third illumination mode.