Smart charging piles rely on a stable network for operation, real-time billing, status monitoring and safety control. However, severe network issues are common in real-world scenarios:

Weak or no signal coverage in underground garages and remote sites leads to frequent device disconnections. Dense deployment of multiple charging piles causes network congestion and high latency, resulting in slow startup and interrupted charging.

Network outages trigger abnormal billing, failure to upload alarms and loss of remote control, creating significant safety risks. Most charging stations lack wired infrastructure and rely only on 4G/5G public networks with poor reliability. In addition, chaotic management of scattered IoT SIM cards and data security risks in public network transmission severely degrade operational efficiency and user experience.