System and method for providing illumination to plants

A system for illuminating plants in a plant growth site, comprising:

• a plurality of illumination units configured to emit light in intermittent pulses on a plurality of plants clusters, based on a duty cycle;
• wherein each illumination unit emits light into a predefined effective area,
• wherein each illumination unit of the plurality of illumination units, simultaneously illuminates two or more plant clusters, creating an overlap of illumination to each plant cluster when predefined effective areas overlap,
• wherein at least a portion of the plurality of illumination units comprises a communication unit configured to receive an individual illumination plan, for each plant cluster,
• wherein said illumination plan is comprised of illumination at one or more wavelengths in different frequencies in said duty cycle, and
• wherein the plurality of illumination units comprises a plurality of light emitters that emits one or more different wavelength ranges simultaneously,
• a central unit connected to the plurality of illumination units configured to adjust the operation of the plurality of illumination units, in a synchronized manner such that each one of the plurality of plants clusters receives light in intermittent pulses emitted at the same time from more than one illumination unit, wherein said synchronization prevents violation of said illumination plan for each individual plant cluster by preventing absorption of different amounts of light by said each one of the plurality of plant clusters receiving overlapping illumination from said plurality of illumination units and said synchronizing is performed via signals sent to at least a portion of the plurality of illumination units;
• a sensor unit configured to obtain data related to plants conditions;
• a control unit configured to receive said obtained data from said sensor unit, and accordingly to adjust said illumination plan,
• wherein said control unit is further configured to communicate with said central unit;
• wherein the central unit is configured to transmit said illumination plan to said communication unit of the at least portion of said plurality of illumination units, and
• wherein the sensor unit comprises an image capturing device, the image capturing device configured to capture images of the illuminated plants, and analyze the captured images to identify characteristics of the illuminated plants,
• a server configured to:
• (i) obtain data concerning former problematic situations;
• (ii) compare images of former problematic situations with current images taken by the image capturing device from various plant growth sites;
• and
• (iii) predict a problematic situation according to the comparison.