Linkable LED lighting system designed with an app based free setting method for adjusting operating parameters of at least one LED security light

An LED security lighting system including at least one LED security light comprising at least:

• a light-emitting unit, including at least one LED load configured with a plurality of LEDs emitting light with at least one color temperature in a color temperature range between 2000K and 6500K;
• a loading and power control unit;
• a light sensing control unit;
• a motion sensing unit;
• a wireless remote control device configured with at least a wireless signal receiver;
• and
• a power supply unit;
• wherein said loading and power control unit comprises a controller and a switching circuitry, wherein said controller is electrically coupled with said light sensing control unit, said motion sensing unit, said switching circuitry and said wireless remote control device, wherein said switching circuitry is electrically connected with a power source of said power supply unit and said light-emitting unit to control and output an electric power delivered to said light-emitting unit, wherein said switching circuitry comprises at least one semiconductor switching device, wherein said controller outputs a control signal to control at least one conduction rate of said at least one semiconductor switching device for delivering different electric powers from said power source to said light-emitting unit for generating different illuminations characterized by different light intensities according to signals respectively received from said light sensing control unit, said motion sensing unit and said wireless remote control device;
• wherein at dusk when said light sensing control unit detects a nighttime signal defined as an ambient light detected by said light sensing control unit being lower than a first predetermined value, said loading and power control unit responsively operates to activate said motion sensing unit with said at least one LED security light remaining in a turned off state;
• wherein when a motion signal is detected by said motion sensing unit, said controller responsively operates said switching circuitry to deliver a first electric power to said light-emitting unit to perform a first illumination mode to generate a first level illumination for a first predetermined time duration, wherein a light intensity of said first level illumination is designed in a range being greater than zero but less than or equal to a maximum light intensity designed for said at least one LED security light;
• wherein at dawn when said light sensing control unit detects a daytime signal defined as said ambient light detected by said light sensing control unit being higher than a second predetermined value, said loading and power control unit respectively operates to switch off said at least one LED security light;
• wherein said wireless remote control device is electrically coupled with said controller to receive and convert at least one wireless instruction signal into at least one operating variable interpretable to said controller, wherein said controller further comprises at least one subroutine for processing said at least one operating variable and adjusting a control signal for performing at least one operating parameter according to said at least one operating variable received from said wireless signal receiver, wherein said at least one operating variable represents a setting decision of a capacity operating rate for each functional performance of each of said operating parameters of said at least one LED security light by a user thru an APP (software application) loaded in a user's mobile device for adjusting and setting at least one operating parameter of said at least one LED security light, wherein said at least one operating parameter is at least one lighting characteristic of said at least one LED security light including at least time length settings, light intensity settings, color temperature settings, detection range settings, signal frequency range or signal format settings for screening, accepting, responding and processing said at least one wireless instruction signal characterized by the same signal frequency range or the same signal format;
• wherein a configuration of said plurality of LEDs of said light-emitting unit is designed with a combination of in series and/or in parallel connections such that when incorporated with a level setting of a DC power for driving said at least one LED load, an electric current passing through each LED of said at least one LED load remains at a level such that a voltage V across each LED complies with an operating constraint of Vth<V<Vmax featuring an electrical characteristic of each LED, wherein Vth is a reference value of a threshold voltage required to trigger each LED to emit light and Vmax is a reference value of a maximum operating voltage across each LED at which at least one LED construction in said plurality of LEDs is vulnerable to a thermal damage;
• wherein when said at least one LED load of said light-emitting unit is configured with N pieces of LEDs electrically connected in series or N sets of in parallel connected LEDs electrically connected in series, a working voltage VN imposed on said at least one LED load for driving said plurality of LEDs is confined in a domain between a minimum voltage equal to a sum of each of said threshold voltages of all LEDs electrically connected in series or sets of in parallel connected LEDs electrically connected in series and a maximum voltage equal to a sum of each of all said maximum operating voltages of all LEDs electrically connected in series or sets of in parallel connected LEDs electrically connected in series, expressed by N×Vth<VN<N×Vmax, wherein N is a positive integer.

An on line free setting method for setting at least one operating parameter of a lighting device comprising:

• using a user interface APP (software application) comprising at least one free setting algorithm loaded in a mobile device to make and transform a user's setting decision into at least one operating variable of at least one operating parameter of said lighting device;
• transmitting via said mobile device at least one wireless instruction signal carrying at least one message of said at least one operating variable to said lighting device for processing at least one value of said at least one operating parameter of said lighting device according to said user's setting decision;
• and
• using a controller of said lighting device, designed with a capacity to interpret said at least one wireless instruction signal received by a wireless signal receiver of said lighting device and accordingly manages to output at least one control signal to control, select or set the at least one value of said at least one operating parameter of said lighting device;
• wherein when said user interface APP is activated and concluded with at least one setting decision, said user interface APP manages to transmit via said mobile device said at least one wireless instruction signal carrying said at least one message of said at least one operating variable to said lighting device, wherein said at least one operating variable is used for processing at least one value of said at least one operating parameter of said lighting device;
• wherein said at least one value of said at least one operating parameter is stored in a memory of said controller for a repetitive performance, wherein said at least one value of said at least one operating parameter stored is replaceable by processing a new operating variable selected by said user;
• wherein said at least one operating parameter is used for controlling at least one of various functional performance settings of said lighting device including at least a timer setting, a light intensity setting, a color temperature setting, a detection sensitivity setting or an illumination performance mode switching and setting among different illumination performance modes;
• wherein said user interface APP is operable on a touch screen panel of said mobile device, wherein said free setting algorithm is a capacity scale simulation process implemented by a visual configuration of a free setting operator incorporated with a capacity scale simulator and an indicator of a capacity operating rate to facilitate said user's decision making process in setting a desired level of said at least one operating parameter, wherein when said free setting operator is activated by said user to interact with said capacity scale simulator, said user interface APP responsively manages to determine a value of said capacity operating rate by selection or computation according to an instantaneous state of interaction between said free setting operator and said capacity scale simulator with said indicator of said capacity operating rate simultaneously showing an instantaneous value of said capacity operating rate, wherein said capacity operating rate shown in said indicator can be an operating percentage, an operating chart, an actual operating value of a relevant operating parameter or a selection of said illumination performance mode, wherein when a free setting motion of said free setting operator is ceased, said user interface APP manages to generate said at least one operating variable corresponding to said capacity operating rate being determined and accordingly operates to transmit said at least one wireless instruction signal carrying said at least one message of said at least one operating variable to said lighting device for execution.

An LED security lighting system including at least one two-level LED security light comprising:

• a light-emitting unit configured with a first LED load and a second LED load;
• a loading and power control unit;
• a light sensing control unit;
• a motion sensing unit;
• and
• a power supply unit;
• wherein said first LED load is configured with N number of LEDs emitting light with a first color temperature and said second LED load is configured with M number of LEDs emitting light with a second color temperature, wherein N and M are positive integers;
• wherein said loading and power control unit includes a controller and a switching circuitry, wherein said switching circuitry includes a first semiconductor switching device and a second semiconductor switching device, wherein said controller is electrically coupled to said light sensing control unit, said motion sensing unit, said first semiconductor switching device and said second semiconductor switching device;
• wherein said first semiconductor switching device is electrically connected with a power source of said power supply unit and said first LED load, wherein said second semiconductor switching device is electrically connected with said power source of said power supply unit and said second LED load;
• wherein said controller outputs different control signals to respectively control conduction states and cutoff states of said first semiconductor switching device and said second semiconductor switching device to respectively perform at least a first illumination mode and a second illumination mode;
• wherein when a nighttime signal is received by said controller defined as an ambient light detected by said light sensing control unit being lower than a first predetermined value, said controller outputs a first control signal to control a first conduction rate of said first semiconductor switching device to generate a first level illumination with said first color temperature for a first predetermined time duration;
• wherein when a daytime signal is received by said controller defined as the ambient light detected by said light sensing control unit being higher than a second predetermined value, said loading and power control unit operates to switch off said light-emitting unit;
• wherein when a motion signal is detected by said motion sensing unit, said controller operates to output a second control signal to control a conduction rate of said second semiconductor switching device to perform said second illumination mode to generate a second level illumination with said second color temperature for a second predetermined time duration;
• wherein said first color temperature is designed with a value in a range between 2000K and 3000K, and said second color temperature is designed with a value between 4000K and 6500K;
• wherein a light intensity of said first level illumination is designed with a value in a range greater than 0% of a maximum light intensity but less than 50% of the maximum light intensity designed for said light-emitting unit to characterize said first level illumination, wherein a light intensity of said second level illumination is designed with a value in a range greater than 50% of said maximum light intensity but less than or equal to 100% of said maximum light intensity to characterize said second level illumination being higher than said first level illumination;
• wherein said N number LEDs of said first LED load and said M number LEDs of said second LED load are respectively designed with a configuration of in series and/or in parallel connections such that when incorporated with a power level setting of a DC power an electric current passing through each LED of said first LED load and each LED of said second LED load remains at a level such that a voltage V across each LED complies with an operating constraint of Vth<V<Vmax featuring electrical characteristics of an LED, wherein V is a variable within a narrow dispersion range characterized by an LED voltage bin selected, where Vth is a reference value of a threshold voltage required to trigger each LED to start emitting light and Vmax is a reference value of a maximum operating voltage across each LED at which at least one LED construction in said plurality of LEDs is vulnerable to a thermal damage.

An LED security lighting system including at least one LED security light comprising at least:

• a light-emitting unit, including at least one LED load configured with a plurality of LEDs emitting light with at least one color temperature in a color temperature range between 2000K and 6500K;
• a loading and power control unit;
• a light sensing control unit;
• a motion sensing unit;
• an external control unit comprising at least one external control device to output at least one external control signal;
• and
• a power supply unit;
• wherein said loading and power control unit comprises a controller and a switching circuitry, wherein said controller electrically coupled with said light sensing control unit, said motion sensing unit, said switching circuitry and said at least one external control device, wherein said switching circuitry is electrically connected with a power source of said power supply unit and said light-emitting unit to control and output an electric power to said light-emitting unit wherein said switching circuitry comprises at least one semiconductor switching device, wherein said controller outputs at least one control signal to control at least one conduction rate of said at least one semiconductor switching device to enable said switching circuitry to deliver different electric powers from said power source to said light-emitting unit for generating different illuminations characterized by at least different light intensities according to signals respectively received from said light sensing control unit, said motion sensing unit and said at least one external control device;
• wherein at dusk when said light sensing control unit detects a night time signal defined as an ambient light detected by said light sensing control unit being lower than a first predetermined value, said loading and power control unit operates said switching circuitry to deliver an electric power to said light-emitting unit to perform a first illumination mode to generate a first level illumination for a first predetermined time duration, wherein when a motion signal is detected by said motion sensing unit, said loading and power control unit responsively operates said switching circuitry to increase said electric power delivered to said light-emitting unit to perform a second illumination mode to generate a second level illumination for a second predetermined time duration, wherein a light intensity of said second level illumination is higher than a light intensity of said first level illumination, wherein at dawn when said light sensing control unit detects a day time signal defined as said ambient light detected by said light sensing control unit being higher than a second predetermined value, said loading and power control unit respectively operates to switch off said light-emitting unit, wherein said at least one external control device is electrically coupled with said controller to output said at least one external control signal interpretable to said controller, wherein said controller further comprises at least one subroutine for processing said at least one external control signal for setting said at least one operating parameter used for controlling at least one lighting characteristic of said at least one LED security light including at least time length settings, light intensity settings, color temperature settings or detection range settings;
• wherein a configuration of said plurality of LEDs of said at least one light-emitting unit is designed with a combination of in series and/or in parallel connections such that when incorporated with a level setting of a DC power for driving said at least one LED load, an electric current passing through each LED of said at least one LED load remains at a level such that a voltage V across each LED complies with an operating constraint of Vth<V<Vmax featuring an electrical characteristic of each LED, wherein Vth is a reference value of a threshold voltage required to trigger each LED to emit light and Vmax is a reference value of a maximum operating voltage across each LED at which at least one LED construction in said plurality of LEDs is vulnerable to a thermal damage;
• wherein when said at least one LED load of said light-emitting unit is configured with N pieces of LEDs electrically connected in series or N sets of in parallel connected LEDs electrically connected in series, a working voltage VN imposed on said at least one LED load for driving said plurality of LEDs is confined in a domain between a minimum voltage equal to a sum of each of said threshold voltages of all LEDs electrically connected in series or sets of in parallel connected LEDs electrically connected in series and a maximum voltage equal to a sum of each of all said maximum operating voltages of all LEDs electrically connected in series or sets of in parallel connected LEDs electrically connected in series, expressed by N×Vth<VN<N×Vmax, wherein N is a positive integer.

An LED security lighting system including at least one LED security light comprising at least:

• a light-emitting unit, including at least one LED load configured with a plurality of LEDs emitting light with at least one color temperature in a color temperature range between 2000K and 6500K;
• a loading and power control unit;
• a light sensing control unit;
• a motion sensing unit;
• an external control unit comprising at least one external control device to output at least one external control signal;
• and
• a power supply unit;
• wherein said loading and power control unit comprises a controller and a switching circuitry, wherein said controller is electrically coupled with said light sensing control unit, said motion sensing unit, said switching circuitry and said at least one external control device, wherein said switching circuitry is electrically connected with a power source of said power supply unit and said light-emitting unit to control and output an electric power delivered to said light-emitting unit, wherein said switching circuitry comprises at least one semiconductor switching device, wherein said controller outputs a control signal to control at least one conduction rate of at least one semiconductor switching device for delivering different electric powers from said power source to said light-emitting unit for generating different illuminations characterized by different light intensities according to signals respectively received from said light sensing control unit, said motion sensing unit and said at least one external control device;
• wherein at dusk when said light sensing control unit detects a nighttime signal defined as an ambient light detected by said light sensing control unit being lower than a first predetermined value, said loading and power control unit responsively operates to activate said motion sensing unit with said at least one LED security light remaining in a turned off state;
• wherein when a motion signal is detected by said motion sensing unit, said controller responsively operates said switching circuitry to deliver a first electric power to said light-emitting unit to perform a first illumination mode to generate a first level illumination for a first predetermined time duration, wherein a light intensity of said first level illumination is designed in a range being greater than zero but less than or equal to a maximum light intensity designed for said at least one LED security light;
• wherein at dawn when said light sensing control unit detects a daytime signal defined as said ambient light detected by said light sensing control unit being higher than a second predetermined value, said loading and power control unit respectively operates to switch off said at least one LED security light;
• wherein said at least one external control device is electrically coupled with said controller to output said at least one external control signal interpretable to said controller, wherein said controller further comprises at least one subroutine for processing said at least one external control signal for setting said at least one operating parameter being at least one lighting characteristic of said at least one LED security light including at least time length settings, light intensity settings, color temperature settings or detection range settings;
• wherein a configuration of said plurality of LEDs of said light-emitting unit is designed with a combination of in series and/or in parallel connections such that when incorporated with a level setting of a DC power for driving said at least one LED load, an electric current passing through each LED of said at least one LED load remains at a level such that a voltage V across each LED complies with an operating constraint of Vth<V<Vmax featuring an electrical characteristic of each LED, wherein Vth is a reference value of a threshold voltage required to trigger each LED to emit light and Vmax is a reference value of a maximum operating voltage across each LED at which at least one LED construction in said plurality of LEDs is vulnerable to a thermal damage;
• wherein when said at least one LED load of said light-emitting unit is configured with N pieces of LEDs electrically connected in series or N sets of in parallel connected LEDs electrically connected in series, a working voltage VN imposed on said at least one LED load for driving said plurality of LEDs is confined in a domain between a minimum voltage equal to a sum of each of said threshold voltages of all LEDs electrically connected in series or sets of in parallel connected LEDs electrically connected in series and a maximum voltage equal to a sum of each of all said maximum operating voltages of all LEDs electrically connected in series or sets of in parallel connected LEDs electrically connected in series, expressed by N×Vth<VN<N×Vmax, wherein N is a positive integer.

An LED security light comprising:

• a light-emitting unit comprising at least one LED load configured with a plurality of LEDs emitting light with at least one color temperature in a range between 2000K and 6500K;
• a loading and power control unit;
• a photo sensor;
• a power supply unit;
• and
• an external control unit, electrically coupled with said loading and power control unit;
• wherein said loading and power control unit comprises a controller and a switching circuitry, wherein said controller is electrically coupled with said photo sensor, said switching circuitry and said external control unit;
• wherein said switching circuitry is electrically coupled with a power source of said power supply unit and said light-emitting unit;
• wherein said switching circuitry comprises at least one semiconductor switching device;
• wherein said controller outputs different PWM signals (pulse width modulation signal) to control at least one conduction rate of said at least one semiconductor switching device such that the light-emitting unit respectively generates different levels of illuminations activated by said photo sensor and said external control unit;
• wherein at dusk when a light intensity level of an ambient light detected by said photo sensor is lower than a first predetermined value, said loading and power control unit operates to deliver an average electric current to the light-emitting unit to perform an illumination;
• wherein at dawn when the light intensity level of said ambient light detected by said photo sensor is higher than a second predetermined value, said loading and power control unit operates to cutoff said average electric current delivered to said light-emitting unit to switch off said LED security light;
• wherein said external control unit is a wireless signal receiver electrically coupled with said controller to receive, decode and convert at least one wireless instruction signal into at least one value of at least one operating variable interpretable to the controller, wherein said controller is programmed with an APP (software application) for interpreting and processing said at least one value of said at least one operating variable for setting at least one operating parameter, wherein said at least one operating variable represents a setting decision by a user for choosing at least one functional performance of said at least one operating parameter of said LED security light including at least a time length setting, a light intensity setting, a color temperature setting, a detection sensitivity setting or an illumination performance mode switching and setting among a plurality of different illumination performance modes;
• wherein a configuration of said plurality of LEDs of said light emitting-unit is designed with a combination of in series and/or in parallel connections such that when incorporated with a level setting of a DC power for driving said at least one LED load, an electric current passing through each LED of said at least one LED load remains at a level such that a voltage V across each LED complies with an operating constraint of Vth<V<Vmax featuring an electrical characteristic of each LED, wherein Vth is a reference value of a threshold voltage required to trigger each LED to emit light and Vmax is a reference value of a maximum operating voltage across each LED at which at least one LED construction in said plurality of LEDs is vulnerable to a thermal damage;
• wherein when said at least one LED load of said light-emitting unit is configured with N pieces of LEDs electrically connected in series or N sets of in parallel connected LEDs electrically connected in series, a working voltage VN imposed on said at least one LED load for driving said plurality of LEDs is confined in a domain between a minimum voltage equal to a sum of each of said threshold voltages of all LEDs electrically connected in series or sets of in parallel connected LEDs electrically connected in series and a maximum voltage equal to a sum of each of all said maximum operating voltages of all LEDs electrically connected in series or sets of in parallel connected LEDs electrically connected in series, expressed by N×Vth<VN<N×Vmax, wherein N is a positive integer;
• wherein when said plurality of LEDs are white light LEDs produced by coating at least one phosphor compound on surfaces of LEDs, said reference value of said threshold voltage Vth is estimated at 2.5 volts and said reference value of said maximum operating voltage Vmax is estimated at 3.5 volts subject to an operating condition that a temperature of each LED is controlled at or below 80 degrees centigrade, wherein said voltage V across each LED of said N pieces of LEDs complies with an operating constraint of 2.5 volts<V<3.5 volts and said working voltage VN imposed on said at least one LED load is thereby confined in a domain expressed by N×2.5 volts<VN<N×3.5 volts.