The smart street light control system is based on wireless mesh technology. Smart controllers (capable of network and device-related decision-making) are installed in each of the new 312 LED street lights in Tartu and rely on wireless communication for exchanging information between the controllers and sensors.
Unlike competing solutions, where all control commands are issued from a server or network controller, this smart control solution requires no permanent server connectivity as operational rules are stored directly in the luminaire controller. The aim is to bring intelligence and data processing to device level and build networks of locally collaborating self-aware devices (sensors and luminaire controllers) which take into account local weather and traffic conditions and adjust street lights without any central server data processing.