Utilidade Elétrica: Estudo de Iluminação

Question

Eu trabalho para uma pequena utilidade elétrica municipal no norte de NY. A utilidade começou recentemente a eliminar gradualmente os postes de luz HPS mais antigos em favor de luminárias LED mais novas. Antes do desenvolvimento dos nossos mapas de utilidade, que atualmente têm menos de um ano, a utilidade contratava uma empresa externa para realizar um estudo de iluminação nas áreas em questão. Agora que temos um mapa de utilidade funcional, seria conveniente usá-lo para realizar um estudo de iluminação internamente. Alguém tem experiência usando ArcGIS dessa forma?

O principal que eu gostaria de fazer é encontrar uma maneira de traçar perfis isolineares de luminárias em nosso mapa. Assim, podemos ver se o braço do poste precisa ser ajustado ou substituído.

Além disso, eu analisei vários programas diferentes de software de iluminação, como AGI32 e DIALux, que parecem úteis. No entanto, o processo de converter seções do nosso mapa para CAD e importar e ajustar nesses programas é bastante trabalhoso.

Espero que alguém com mais experiência possa dar uma recomendação.

LongDinh · Answer

If you looking to generate light intensity, it would be best to use a raster data type.

The isoline profile generator should be able to generate raster cell values at a given x,y location and distance from the x,y location. Hopefully there's a relationship between height, orientation and bulb type which determines the light intensity.

Once you have all streetlights mapped and profiled, you can do a cumulative sum of overlapping cells with a threshold of 100 (for 100%) or have an IF raster condition to determine if it is intense or not e.g. >30% intensity is a pass for coverage otherwise, not intense enough.

So it's certainly possible!

VillageOf_Lake_Placid · Answer

That would be a fantastic idea. Currently the major issue is that we only have photometric files for each light type, so we need to convert each one into an isoline profile. However, the current process for getting these profiles is kind of a pain. We open the photometric files in AGI32, convert it to Cad, then convert it again into ArcGIS Pro. There has to be a better way to get a photometric file to create a usable isoline for Arcgis Pro.

Once we get this working I think your suggestion to determine the coverage is a great idea. I will have to give it a try.

It is an interesting predicament, it might be that we are asking for to much. The few examples of utilities and cities that use Arcgis to display light coverage and intensity have all used a simple buffer. Not taking into account the actual distribution of the light.

LongDinh · Answer

This really fascinates me. To preface, I have no experience with lighting software or technicalities but I can share a potential solution in the ArcGIS environment to help you understand lighting areas.

Given you have a luminaire isoline profile for each streetlight type (by bulb type?), and the height and orientation of the streetlight, you could write a Python script to generate/draw the luminaire isoline profile at each of the streetlight x,y locations.

Maybe your reporting statistic is % coverage of a road network which for a given road network, you could CLIP by the isoline profiles and get the difference in SHAPE lengths of the road network to determine the % coverage.

Anyways, I'm just throwing ideas around to an interesting problem.