Distributed lighting control of a corridor or open areas
Methods and apparatuses of distributed lighting control are disclosed. One method includes a sensor sensing a change of light intensity per unit of time greater than a sense threshold. If a light associated with the sensor is within a corridor and the sensed change of light intensity per unit of time is greater than the sense threshold, then the light is activated at a preselected corridor light intensity. If the light associated with the sensor is not within a corridor and the sensed change of light per unit of time is greater than the sense threshold, then the light is activated at a preselected non-corridor light intensity. For an embodiment, the preselected corridor light intensity is greater than the preselected non-corridor light intensity.
1. A method of distributed lighting control, comprising:
a sensor sensing a change of light intensity per unit of time greater than a sense threshold;
if a light associated with the sensor is within a corridor and the sensed change of light intensity per unit of time is greater than the sense threshold, then activating the light at a preselected corridor light intensity;
if the light associated with the sensor is not within a corridor and the sensed change of light per unit of time is greater than the sense threshold, then activating the light at a preselected non-corridor light intensity.
2. The method of claim 1 , wherein the preselected corridor light intensity is greater than the preselected non-corridor light intensity.
3. The method of claim 1 , further comprising the light only activating if within a predetermined amount of time before the sensor sensing a change of light intensity per unit of time greater than a sense threshold, a level light intensity sensed by the sensor is below an initial threshold.
4. A method of distributed lighting control, comprising:
a sensor sensing a change of light intensity per unit of time greater than a sense threshold;
if a light associated with the sensor is within a corridor and the sensed change of light intensity per unit of time is greater than the sense threshold, and if within a predetermined amount of time before the sensor sensing a change of light intensity per unit of time greater than a sense threshold, a level light intensity sensed by the sensor is below an initial threshold, then activating the light at a preselected corridor light intensity;
if the light associated with the sensor is not within a corridor and the sensed change of light per unit of time is greater than the sense threshold, then activating the light at a preselected non-corridor light intensity, wherein
the preselected corridor light intensity is greater than the preselected non-corridor light intensity.
5. A system for distributed lighting control, comprising:
a light;
means for the determining if the light is within a corridor;
a sensor associated with the light for sensing a change of light intensity per unit of time greater than a sense threshold;
a controller associated with the light and the sensor, the controller operative to activate the light at a preselected corridor light intensity if a light associated with the sensor is within a corridor and the sensed change of light intensity per unit of time is greater than the sense threshold, and the controller operative to activate the light at a preselected non-corridor light intensity if the light associated with the sensor is not within a corridor and the sensed change of light per unit of time is greater than the sense threshold.
6. The system of claim 5 , wherein the preselected corridor light intensity is greater than the preselected non-corridor light intensity.
7. The system of claim 5 , further comprising the controller only activating the light if within a predetermined amount of time before the sensor sensing a change of light intensity per unit of time greater than a sense threshold, a level light intensity sensed by the sensor is below an initial threshold.
8. A lighting apparatus, comprising:
a light;
a sensor associated with the light for sensing a change of light intensity per unit of time greater than a sense threshold;
a controller, the controller operative to determine if the light is within a corridor, the controller further operative to activate the light at a preselected corridor light intensity if a light associated with the sensor is within a corridor and the sensed change of light intensity per unit of time is greater than the sense threshold, and the controller operative to activate the light at a preselected non-corridor light intensity if the light associated with the sensor is not within a corridor and the sensed change of light per unit of time is greater than the sense threshold.
9. The apparatus of claim 8 , wherein the preselected corridor light intensity is greater than the preselected non-corridor light intensity.
10. The apparatus of claim 8 , further comprising the controller only activating the light if within a predetermined amount of time before the sensor sensing a change of light intensity per unit of time greater than a sense threshold, a level light intensity sensed by the sensor is below an initial threshold.