Bangkok’s 235-Node Streetlight Network: One Pole, Multiple Services
Bangkok’s coastal corridor deployment shows how a streetlight can become a compact urban edge node. Instead of separate assets for lighting, surveillance, sensing, and connectivity, the project consolidated 235 SOLARTODO smart streetlight units onto 12m seamless round steel poles with 25m spacing. The result is a cleaner streetscape with fewer protrusions, while still supporting public-space operations, data collection, and digital access.
Why this architecture matters
For dense, humid, sea-adjacent districts, the design problem is not only illumination. Municipal teams need corrosion-resistant structures, low-maintenance electronics, and interoperable communications. This is aligned with the IEA view that LED streetlighting is one of the most effective municipal efficiency upgrades, and with the ITU guidance that smart sustainable cities depend on connected, interoperable infrastructure.
Core Hardware and Lighting Specifications
Pole, optics, and mounting layout
Each unit uses a 12m Φ273mm round tubular steel pole with 6mm wall thickness, finished in hot-dip galvanized RAL8011 monolithic pole styling for durability and a restrained visual profile. The lighting module is an integrated 100W LED ring light producing 15,000 lumens at 4000K, with 150 lm/W efficacy. The 25m spacing supports uniform roadway coverage without cluttering the corridor.
On-pole sensing and communications
Every pole also carries a 4MP bullet camera mounted on a 0.3m short arm bracket, with IR night vision up to 50m. Environmental monitoring comes from a 12-parameter sensor suite covering temp, humidity, wind, pressure, noise, PM2.5, PM10, CO, NO2, O3, rain, and illuminance. Connectivity is handled by a standalone 4G gateway with RS485 + 4G uplink, which simplifies field integration across lighting, sensing, and audio subsystems.
| Spec | Value | Notes |
|---|---|---|
| Smart streetlight units | 235 | Corridor-scale deployment |
| Pole height | 12m | Seamless round steel pole |
| Spacing | 25m | Uniform coverage design |
| LED output | 100W / 15,000 lm | 4000K, 150 lm/W |
| Camera | 4MP | IR night vision to 50m |
| Sensor channels | 12 | Weather + air quality + light |
| Connectivity | 4G + RS485 | Standalone gateway |
Public Services and Edge Connectivity
WiFi, charging, and user access
Beyond infrastructure monitoring, the poles function as public digital access points. Each node includes WiFi 6 (802.11ax) supporting up to 256 devices per pole, plus dual USB 5V/2.4A charging ports. That makes the streetlight a practical edge device for pedestrian zones, transit-adjacent corridors, and civic service areas.
Integration logic for municipal operators
The architecture reduces asset fragmentation: one pole supports lighting control, video monitoring, environmental telemetry, and local connectivity. For operators, this means fewer cabinets, fewer separate maintenance cycles, and a clearer data model for city operations. SOLARTODO structured the system around a single 4G-connected platform rather than isolated subsystems, which is especially useful when scaling across long corridors.
Standards, Deployment Context, and Takeaway
Compliance and urban fit
The structure is designed to align with IEC 60598, GB/T 37024, and CJJ 45-2015, supporting technical acceptance in regulated public-infrastructure projects. In a city like Bangkok, where humidity, traffic density, and visual-order constraints all matter, the combination of sealed hardware, integrated sensing, and minimal external clutter is a strong fit.
Related deployment patterns
This same multi-service pole logic is increasingly relevant for projects such as a CIGS thin-film wrapped pole 200W concept or an 11kW EV Type 2 charger streetlight configuration, where one asset must support energy, mobility, and sensing at the edge. For procurement teams and system integrators, the Bangkok case is a useful reference for how a SOLARTODO platform can unify urban services without overcomplicating the physical layer.
For the full deployment reference and technical context, see SOLAR TODO.
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