Cities could replace old streetlights with more energy-efficient LED bulbs, and also use wireless connectivity to activate motion sensors on streetlights when passers-by approach and automatically alert city authorities when bulbs need replacing. Smart streetlights can also enhance public safety through network monitoring and environmental monitoring.Global installations of smart street lights are expected to grow from 10.4 million units at the end of 2018 to 31.2 million units by 2023, according to a recent research report from IoT analytics firm Berg Insight. terminales IoT industrialesLevi Ostling, the IoT analyst at Berg Insight, said: "The smart street lighting market is currently undergoing major changes and is entering a new era of competition where the success of vendors will depend on their ability to become strong players in smart city device communication and management platforms." strong provider."What is a smart street lighting system?Smart city streetlights are a kind of street light that has been generally upgraded to LED bulbs, and their energy consumption is much lower than that of traditional incandescent bulbs. Philips, one of the leading suppliers of smart street lighting, says cities can reduce energy use by up to 50% with IoT lighting. This is critical because, as Cisco points out, street lighting can account for 38 percent of a city's utility bill.Street lights can be managed remotely, or automatically dimmed or turned off based on nearby activity, saving cities money. LED lights are also brighter than traditional lights, improving public safety by brightening traditionally dark areas of the city.Chicago is installing 40,000 new LED streetlights citywide. The city said in 2019 that it would save about $100 million over the next decade thanks to new energy-efficient street lights that use 50% to 75% less electricity than outdated high-pressure sodium lights.Meanwhile, as the Smart City Lab website notes, smart lighting has been recognized as "one of the most feasible and easy-to-implement technologies for cities to transition to a low-carbon economy and peak emissions over the next decade."The site notes that LED light posts are also "ideal infrastructure for installing smart city systems" and that "when used for networking and monitoring, they become a sensor platform, further increasing efficiency and providing vital data for countless city solutions"."The street lights of the future won't just light the streets at night," Glenn Buck, manager of sales engineers at Transition Networks, wrote in Smart Cities Dive.Smart street lights can support solar power generation, digital signage, environmental condition monitoring (temperature, humidity, flood conditions, air quality), and traffic monitoring. modulo loraThe data collected by these sensor networks, Cisco notes, "can support many city services and initiatives on a single public infrastructure: from law enforcement to environmental improvement, traffic monitoring, and earthquake mitigation."What is an intelligent street light management system?According to embedded wireless company Radiocrafts, a smart street lighting system consists of a cluster of street lights that "can communicate with each other and provide lighting data to a local concentrator."The concentrator then "manages and transmits the relevant data to a secure server, which captures the data and displays it on a web browser dashboard."The smart street light management system also incorporates two-way communication, allowing utility or facility managers to "remotely monitor street lights while tracking lights and their power consumption."This monitoring helps reduce maintenance costs as each street light has a unique ID and can be precisely located. If a connected street light is damaged or tipped over due to weather or malfunction, city crews can schedule maintenance for that particular lamppost.Streetlight monitoring systems can provide automated streetlight maintenance. A research paper in the International Journal of Engineering and Technology states that light sensors can be installed in all street light circuits and are responsible for automatically turning on/off street lights.Once the lights are turned on, current sensors installed on each street light circuit report the status of the lights to the central system through a GSM wireless module connected to the circuit.Once this data is sent back, maintenance crews can easily be dispatched to malfunctioning lights."The system also maintains a database for storing user information from each street light, such as power consumption, total hours lit, the total number of interruptions, and details of fault detection," the paper states.How smart city street lights can protect public safetySmart cities and police departments are using smart streetlights to help fight crime, respond to emergencies, and serve citizens better.Smart streetlights with sensors could detect certain sounds so that “they Automatically alert the police of dangerous situations by recognizing the sound of broken glass or a car crash.”Public safety officials "are able to monitor intersections and record when traffic jams occur — information that can be used to adjust traffic lights."A Smart Cities Council post notes that Coolidge Park, located on the riverfront in downtown Chattanooga, Tennessee, has benefited from the addition of LED smart street lights.“The park is notoriously unsafe, with gang gatherings sometimes leading to fights. But the city has partnered with local company Global Green Lighting to install smart streetlights that can be controlled remotely, making them brighten, dim or flash. When the lights flash By then, the gangs had dispersed, and over time, the park returned to calm."In addition, smart lighting systems can include built-in speakers that can be "used to broadcast public address announcements during emergencies, or simply play music to add to the ambiance of public spaces," the Smart Cities Council noted.How to combine smart street lights with monitoringWith surveillance cameras embedded in smart street lights, cities can “monitor traffic conditions and speeds to adjust traffic signals or alert drivers via digital signage,” Buck writes in Smart City Dive.He also noted that smart lampposts "may also help identify suspicious behavior or enable license plate recognition."San Diego Police Chief David Nisleit said the city's smart street lights with embedded cameras are a "game changer" in helping find suspects."We use them very sparingly and only for the most serious cases, very violent cases or collisions with serious or fatal injuries," Nislet said in an interview with the San Diego Union-Tribune. "But we have the ability to use them As a response tool, as a leader of the investigation."However, critics say San Diego's streetlights also collect data on pedestrian movement, potentially putting citizens' data at risk.Simon Sylvester-Chaudhuri, executive director of the urban innovation nonprofit CIV: LAB, said on the Samsung Next blog that to mitigate privacy concerns, city leaders "need to put in place advanced controls to protect citizens' data and control over who can access it and Be transparent about how data is used."
