Based on the experience gathered on its PLC street lighting installation, Riyadh municipality acknowledged that one of the fastest way to expand management capabilities over the street lighting grid is by using the lighting panel as a “gateway” for all the street lights in the segment.
Even if this solution does not offer individual control of every lamp it can provide autonomous operation for the entire street lighting segment based on predefined astronomic calendar and/or external light level sensor (digital INPUT), with remote real-time ON/OFF control and multiple configuration options.
Because this part of the project doesn’t include individual control for every lamp, some of the PLC communication specific equipment is no longer needed (e.g. data concentrator) paving the way for the use of other communications technology and reducing costs.
The projects developed GSM/NB-IoT/LTE-M communications, for their excellent penetration in dense urban areas, carrier-grade security and proven reliability. For more flexibility and redundancy, the system uses the latest inteliLIGHT features, switching automatically between available communications technologies. It can also function as a failsafe mechanism in case of unforeseen circumstances as for example malfunction of photocell due to weather conditions.