In the sweltering July heat of Nanjing, the cicadas are loud near Jiming Temple Road. Sanitation worker Zhu Wenxian's orange uniform no longer shows the usual white salt stains from sweat. Instead, a gentle breeze and a low hum emanate from his waist. This smart device, nicknamed "a walking air conditioner" by netizens and called for nationwide adoption, is now standard equipment for all frontline sanitation workers in Xuanwu District. It's often said that technology should have warmth, but Xuanwu District has redefined that concept. The warmth here isn't about precise data from a climate-controlled lab, but the perfectly timed breeze at a sanitation worker's waist during the dog days of summer. This breeze opens up a topic worth exploring: while other regions obsess over large model parameters and fundraising scales, why does Xuanwu District, a central urban area of Nanjing, insist on embedding technology into the daily life of the people?

Summer heat used to be the worst time for sanitation workers. After less than two hours of sweeping, their backs would be soaked, clothes caked with salt, and their bodies roasted, leading to anxiety. Now, all frontline sanitation workers in Xuanwu District wear "air-conditioned vests." Equipped with two tiny, silent waist fans and a portable power bank in a pocket, they can adjust the fan speed with three settings. A full charge lasts 3 to 4 hours, and a quick recharge during lunch break can support a full day's work. "Before, in hot weather, my back would be soaked after less than two hours of sweeping, my clothes covered in salt, and I'd feel hot and irritable. Now, with the fan on, the breeze rises from my waist, and it's so cool," Zhu Wenxian said, expressing the most direct feeling. Xuanwu District has broken down technological innovation into specific scenarios, allowing it to truly permeate every industry and become a tangible force driving industrial upgrades and improving people's livelihoods.

If the "air-conditioned vest" is about wearing technology, the H1 humanoid robot "Xiao Zhu" from Zhujing Intelligence is about giving technology a physical presence. This short, round-headed robot, standing less than 1.3 meters tall, relies on a multimodal intelligent model and scene perception system. It can perform complex tasks like folding clothes and retrieving objects in real environments, enabling natural communication and accurate judgment. From serving as a guide at the "Su Chao" finals last year to appearing at the World Intelligent Manufacturing Conference and recently playing chess with young performers, "Xiao Zhu" has been making its presence felt. Notably, Zhujing independently developed datasets for four major scenarios: office, supermarket, dining, and home services. These were listed for trading on the Jiangsu Data Exchange at the end of last year, becoming the first national transaction for embodied intelligence datasets. The H1 robot has sold nearly 1,000 units in just 8 months, with projected revenue exceeding 300 million yuan this year. From folding clothes to working at a workstation, Xuanwu District is proving that humanoid robots are not just lab ornaments but productive forces capable of entering thousands of homes.

Stepping into the exhibition hall of the Xuanwu Large Model Factory, a white and orange plush fox enthusiastically greets visitors: "I'm Hu Xiaoxuan, want to know today's weather?" Its "special skill" is hidden in the Xuanji AI chip inside. The research team fine-tuned a general large model, developed an intelligent agent and corresponding knowledge base, allowing it to switch between over 30 characters while possessing long-term memory. When starting a new conversation, it can "remember" previous chats. Its eyes, made from an LED screen, can display over 10 different patterns based on the conversation. This is the "Xuanji AI Full-Stack Software and Hardware Solution" released by the Xuanwu Large Model Factory at the end of last year. It features standard plug-and-play interfaces, can connect to mainstream large models like Doubao and Tongyi Qianwen, allow customization of IP-specific personalities, and achieve full-chain management with a cloud-based backend. Entering the factory as a virtual IP, and leaving as an interactive AI product, this new "production line" is transforming "invisible computing power" into "tangible companionship."

Xuanwu District's charm lies in its blend of people-oriented livelihood care and high-level cultural narratives. The 1,800-meter-long Changjiang Road carries 1,800 years of Jinling cultural heritage. Now, this road is becoming "dynamic" thanks to AI. In the Deji Art Museum, 30 scenes and 533 characters from the "Jinling Tu" scroll come to life. The Jiangning Weaving Museum has intelligent "employees" based on characters from "Dream of the Red Chamber" that can accurately capture visitors' expressions and tones for fun interactions. At the Ming Xiaoling Mausoleum Museum, children wearing VR headsets can see stone mythical beasts, carved over 600 years ago, come to life. Even the boats on Xuanwu Lake have started to "talk." The scenic area has created a smart tour guide based on the local IP character "Xuanxuan," and boats shaped like "curly-haired ducks" equipped with interactive systems are now officially in service. By simply pressing a button, visitors can have a voice conversation with "Xuanxuan" to get information about attractions and recommended tour routes. "AI + cultural tourism" is no longer just a concept in Xuanwu District; it's integrated into daily life.

Technology empowers not only industry and tourism but also safety and governance. A "Cloud, Water, Land, and Air" four-in-one system builds a round-the-clock protection network. On the cloud, heat maps from crowds use AI to predict risks. On the water, patrol boats are ready to respond. On land, PTU vehicles and grid-based police are on active duty. In the air, drones broadcast warnings. Using water-related incidents at Xuanwu Lake as a starting point, the district has created a "six-in-one" working method involving video patrols, ground patrols, water response, aerial inspections, emergency rescue, and intelligent alarms. It has built 33 intelligent warning sensors, successfully handling 28 water-related suicide incidents this year, significantly reducing the number of drownings. This data is more convincing than any grand narrative. The recently concluded 13th Party Congress of Xuanwu District clearly stated its goal: "To build a comprehensive intelligent pioneer zone, promote 'AI +' innovation in areas like livelihood security, social governance, and government services, explore pioneering benchmark scenarios, and construct a warmer intelligent society." From air-conditioned vests to humanoid robots, from AI toys to digital cultural tourism, and the "Cloud, Water, Land, and Air" safety net, Xuanwu District's logic is clear: when technology sinks into the daily life of the people, life truly becomes warmer.