Because the world embraces the transition to electrical automobiles (EVs), the necessity for environment friendly and dependable charging infrastructure has change into paramount. Sizeable multi-story parking heaps current distinctive challenges in terms of charging communication. That is the place Wi-SUN (Wi-fi Sensible Ubiquitous Community) emerges as a game-changing know-how, providing quite a few benefits over different options within the section, akin to 5G and LoRa.
Software Situation
Within the state of affairs we’re sharing in the present day, our consumer sought a wi-fi communication know-how for EV charging info transmission in a big underground, multi-story parking zone with tons of of charging piles distributed throughout a number of flooring. The consumer opted for Wi-SUN in order to attenuate communication prices and maximize sign penetration compared with rival applied sciences.
Challenges
To make sure dependable info transmission between the EV chargers and the back-end system whereas preserving the prices down, the consumer seemed to 2 efficiency indicators:
- Whether or not or not a single gateway might join and efficiently talk with tons of of charging piles put in on completely different underground flooring.
- Whether or not or not the communication system might full the information transmission inside 5 seconds, avoiding info congestion.
Resolution
The consumer opted for charging piles utilizing our Wi-SUN SoCÂ VC7351. Utilizing only one gateway we had been capable of assist a community of over 300 charging piles distributed throughout a number of flooring under the bottom. Because of the adoption of OFDM transmission, the community delivered low communication latency and excessive bandwidth.
Final result
The adoption of mesh topology-based Wi-SUN FAN (Discipline Space Community) made it potential not solely to fulfill the entire consumer’s necessities, but additionally to make sure that because the parking house expands or new charging stations are added, the community simply scales to accommodate the rising communication calls for.
Wi-SUN Options
Underneath Wi-SUN mesh community structure, every charging pile acts as a node, forming a self-configuring community. This design ensures dependable connectivity even within the difficult underground atmosphere, the place obstacles akin to concrete constructions and steel interference are frequent. Such situations make it troublesome, if not inconceivable, for different applied sciences within the section to realize comparable efficiency.
Wi-SUN relies on the IEEE 802.15.4g customary, which gives excessive knowledge charges and low latency. This functionality is essential for transmitting real-time charging info, akin to load steadiness, energy calls for, charging standing, and diagnostics, between the charging piles and the central gateway. Quick and dependable knowledge trade ensures trouble-free load balancing and orderly charging, minimizing downtime and maximizing the general charging capability. This makes the charging expertise trouble-free for drivers and charging level operators alike.
