SOLUTION

Control scheme for street lights

Street lights can be integrated into the urban lighting control system and receive remote control from the 'Urban Lighting Control Center'< br /> Each road section has one or several 'streetlight control boxes' for streetlights. Set up a 'wireless receiving module' inside the 'streetlight control box', which can accept remote control commands from the 'urban light control center'< br /> The control from the 'streetlight control box' to the streetlight can be achieved through the use of power carrier. A 'power carrier controller' can be set up inside the 'streetlight control box', and the control commands can be loaded onto the power supply line (L, N) of the streetlight through power carrier< br /> Install a 'power carrier decoder' inside each street lamp pole, which can decode the received carrier signal into a control command and control the turning on, off, or dimming of the street lamp. Alternatively, in the early stages of damage to the street lamp light source, proactively upload the fault situation to the 'street lamp control box', which then uploads it to the control center< br /> Alibaba Cloud servers can be used to receive information from the 'streetlight control box'. After adopting 'Alibaba Cloud Control' technology, the entire network structure is: mobile phone/computer mobile end - Alibaba Cloud server - street light control box - street light; A mobile phone can become a lighting control center, monitoring lights, receiving status alarms or warranty requests from Alibaba Cloud servers, and even reading the current detection value of the lighting circuit< br /> The traditional 'urban lighting control center' remains or becomes a sub item of the 'smart city control center'. The personnel responsible for street light management can directly receive the system's alarm/warranty information.

Case analysis:
Some street lights in Changzhou City, Jiangsu Province have adopted a simple and effective energy-saving method: a Philips dual power ballast and a British MP energy-saving controller are used in each street light, and the street light operates at a 250W high-pressure sodium lamp state during a specified time period of the day; During another designated period of time (usually late at night), the street lights will operate at 150W; Through this control method, not only can it save energy (after switching from 250W to 150W, it saves 40%), but it also ensures the continuity of the street light effect< br /> An upgraded version of this application: each section of the road has one or several 'street light control boxes'. Install 'MP-GPRS' wireless modules in the' streetlight control box ', and the' MP-GPRS' wireless modules in each 'streetlight control box' are directly connected to Alibaba Cloud servers and receive control from Alibaba Cloud servers; In this way, the status of street light circuits in various parts of the city can be monitored through terminal devices such as mobile phones and computers, or on the monitoring screen of the 'smart city', and the street lights can be remotely controlled to enter energy-saving mode.