Outline
- Introduction
- Why Are Modern Cities Demanding More Than Just Photocell-Based Lighting?
- How Is Long-Join Leveraging Its Lighting Expertise to Build Environmental Governance Solutions?
- What Core Technologies Power Long-Join’s Intelligent Spray System?
- In Which Urban Scenarios Can Intelligent Spray Systems Deliver Maximum Value?
- How Do Global Case Studies Demonstrate the Effectiveness of Intelligent Spray Systems?
- What Does Research Reveal About Comfort and Public Health Impacts?
- How Are Global Market Trends Shaping the Future of Mist-Enabled Smart Poles?
- Final Words
Cities today are dealing with more than traffic and lighting. Air pollution and extreme heat are now daily realities. Smart poles already help with lighting automation and data collection —but they no longer meet the full urban need.
This is where intelligent spray systems step in. They help cool streets and improve air quality without adding complexity to city infrastructure. With decades of experience in lighting control, Long-Join is now bringing environmental governance and smart lighting together.
The result is a new chapter in smart cities—one where lighting poles don’t just illuminate the streets. They help protect the people who walk them.
Image Courtesy: HUAXIA STAR INDUSTRIAL DESIGN
Why Are Modern Cities Demanding More Than Just Photocell-Based Lighting?
Urbanization is driving serious stress on cities. Pollution from vehicles and industry is choking the air quality. Here is how this triggers intense urban heat-island effects.
- Dense concrete and asphalt trap heat.
- Cities generate huge carbon emissions. Up to 70% of global GHGs come from urban areas.
Meanwhile, smart lighting has evolved. Streetlights now host photosensors and IoT remote control sensors.
But there’s a missing piece.
These systems don’t directly tackle air quality, heat, or public-health risks. Cities need tools that go beyond illumination. They need infrastructure that cools, cleans, and protects. Smart lighting is a start—but the future demands environmental control too.
How Is Long-Join Leveraging Its Lighting Expertise to Build Environmental Governance Solutions?
Long-Join has over 20 years of experience building photocontrol receptacles and outdoor lighting controllers. Their deep expertise has evolved from simple on/off sensors to fully networked, smart lighting systems.
Now, Long-Join is leveraging this heritage to move into environmental control. They are designing intelligent spray systems that do more than light up the night—they clean the air and cool urban spaces.
The purpose is clear: use trusted lighting infrastructure to deliver public-health benefits. By integrating their proven controllers with spray-nodes, Long-Join turns streetlights into active systems for governance—cooling, dust suppression, and environmental protection.
What Core Technologies Power Long-Join’s Intelligent Spray System?
Long-Join’s Intelligent Spray System is built on a distributed node architecture. Here are some of their characteristics:
- Each spray-node works independently — no central pump means high resilience.
- The modules are modular and need less maintenance. Faulty parts can be swapped without shutting down the whole system.
- It’s pole-powered. So there’s no need for extra wiring or infrastructure.
- The spray uses a low-pressure and high-flow mechanism. This makes it safe around vehicles and people.
- Smart triggers control activation
- Operators control everything remotely.
- Each unit is rated IP67. This protects it from dust and water.
- The design is low-noise, ideal for quiet urban environments.
Comparison of Common Urban Spray Applications
| Spray Application Type | Primary Function | Typical Activation Trigger | Example Use Case |
| Cooling/Misting System | Reduces ambient temperature | Heat index threshold | Hot public squares |
| Disinfection Spray | Surface/air hygiene | High footfall or event schedule | Bus stops, stations |
| Air-Quality Neutralizer | Particulate suppression | PM2.5/PM10 sensor reading | Industrial-adjacent roads |
| Pest Control Spray | Reduces mosquito/pest density | Seasonal pattern or manual trigger | Parks and green belts |
In Which Urban Scenarios Can Intelligent Spray Systems Deliver Maximum Value?
Long-Join’s spray system shines in many city settings. Here is a quick overview:
● Road dust suppression
It settles particulate matter before it becomes airborne — improving air quality along busy avenues.
● Smart bus stops
The mist cleans surfaces and cools waiting passengers. This supports hygiene by reducing dust and germs.
● Scenic areas and pedestrian walkways
These sites benefit too. Gentle mist brings cooling and a calming ambiance for walkers.
● On construction sites
The system acts as a purification shield — targeting dust and airborne particles at their source.
These four application scenarios make full use of the system’s design: efficient, responsive, and useful in diverse urban environments.
How Do Global Case Studies Demonstrate the Effectiveness of Intelligent Spray Systems?
Long-Join’s approach mirrors real, tested projects worldwide. These pilots show practical deployment details and measured outcomes.
India — Delhi
Pilot on Lodhi Road used 15 poles over 560 m with 30 high-pressure nozzles per pole; systems run at 40 bar, and the pilot cost ₹34 lakh. The NDMC is expanding to dozens more roads after initial deployment.
France — Paris
Wallace fountains were retrofitted with misting modules. Public feedback found 97% of users rated the mist feature useful or essential. The system activates automatically during heat events.
China — Chongqing/Wuxi/Haiyan
Streetlight-integrated micro-fog units are used for dust suppression, humidification, and localized cooling. Municipal reports highlight reduced visible dust and improved local comfort.
UAE — Dubai Expo
High-pressure fog systems provided targeted cooling inside pavilions and public zones, improving visitor comfort in extreme heat. Vendors reported reliable cooling at scale.
Australia — Parramatta
Phillip Street’s smart-street upgrades included mist cooling as part of a wider “smart street” program to improve pedestrian comfort and activation. The project is cited as a successful integrated demonstration.
What Does Research Reveal About Comfort and Public Health Impacts?
Studies show intelligent mist systems significantly improve thermal comfort. Field measurements indicate:
- Mean Radiant Temperature drops by –7.6°C
- Physiologically Equivalent Temperature drops by –6.5°C
- Universal Thermal Climate Index drops by –4.4°C
Activation is most effective at ≥32.5°C, ensuring energy is used efficiently.
WHO and CDC advise that outdoor misting should focus on cooling and dust suppression. Chemical disinfection in open urban spaces can pose health risks.
The impact is measurable. Pedestrians report improved comfort and safer conditions in high-heat and dusty urban areas. Mist systems reduce heat stress while controlling particulate matter, directly supporting public health.
How Are Global Market Trends Shaping the Future of Mist-Enabled Smart Poles?
Urban heat waves are increasing the demand for climate adaptation solutions. Mist systems are now integrated with:
- Lighting controllers and IoT sensors
- Telecom hubs for 5G connectivity
- Environmental control modules, like fog and cooling
The global smart pole market is projected to reach $40B by 2030, growing at a 20% CAGR. Standardized operations are now critical:
- Legionella risk management
- Periodic flushing of water systems
- Usage dashboards and reporting
These trends show that mist-enabled poles are no longer optional—they are essential for future-ready, safe, and climate-resilient cities.
Upcoming Smart-Pole Functional Layers
| Functional Layer | Description | Urban Benefit |
| Environmental Sensing | Air quality, noise, climate data | Real-time monitoring |
| Community Services | EV charging, WiFi, emergency buttons | Better citizen support |
| Public Health Layer | Cooling, misting, and sterilization | Healthier urban living |
| Micro-Infrastructure | Cameras, edge computing, micro base stations | Smarter, connected cities |
Final Words
Intelligent spray systems, when paired with smart photocontrollers, turn ordinary poles into active environmental assets. They support cleaner, safer, and more resilient urban spaces. For reliable Long-Join photocontrollers, Chi-Swear offers consistent quality and trusted supply—making it a dependable partner for smart-city upgrades.
External Links
- https://www.who.int/teams/environment-climate-change-and-health/healthy-urban-environments/urban-planning/health-risks
- https://timesofindia.indiatimes.com/city/delhi/delhi-deploys-automatic-misting-systems-to-fight-air-pollution/articleshow/121979703.cms
- https://www.eaudeparis.fr/en/refresh-the-city
- https://www.csbestars.com/news/street-lights-that-can-sprinkle-water-appear-on-the-streets-of-china/
- https://www.raintime.at/en/raintime-fog-technology-at-expo-2020-dubai/
- https://www.nsw.gov.au/business-and-economy/smart-places/case-studies/parramattas-smart-street
- https://www.marketsandmarkets.com/report-search-page.asp
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