TY - GEN
T1 - An AC Charging Pile Current Regulation System Based on LoRa-Modbus
AU - Zheng, Wenbin
AU - Yang, Han
AU - Shi, Zheng
AU - Fu, Ping
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - This study presents a LoRa-Modbus heterogeneous integrated CP line PWM intelligent control center based on STM32F103C8T6 for new energy vehicle charging piles. The system regulates CP line PWM signals and integrates LoRa-Modbus communication. A 'programmable voltage division and buffer isolation' architecture enables accurate detection of multi-state signals (12 V/9V/6V). Highfrequency ADC sampling (10 kHz) with threshold statistics achieves 1% duty cycle error. A novel 'LoRa physical layer + Modbus application layer' scheme, using the SX1268 chip, supports long-distance transmission and protocol mapping between Modbus registers (0 × 003 C-0 × 0276) and PWM duty cycles (10%-89.2%), corresponding to 6.0-63.0 A current with 0.1 A resolution. Experiments verify duty cycle tracking error 1% without LoRa signals, offering a cost-effective, robust solution for charging pile upgrades.
AB - This study presents a LoRa-Modbus heterogeneous integrated CP line PWM intelligent control center based on STM32F103C8T6 for new energy vehicle charging piles. The system regulates CP line PWM signals and integrates LoRa-Modbus communication. A 'programmable voltage division and buffer isolation' architecture enables accurate detection of multi-state signals (12 V/9V/6V). Highfrequency ADC sampling (10 kHz) with threshold statistics achieves 1% duty cycle error. A novel 'LoRa physical layer + Modbus application layer' scheme, using the SX1268 chip, supports long-distance transmission and protocol mapping between Modbus registers (0 × 003 C-0 × 0276) and PWM duty cycles (10%-89.2%), corresponding to 6.0-63.0 A current with 0.1 A resolution. Experiments verify duty cycle tracking error 1% without LoRa signals, offering a cost-effective, robust solution for charging pile upgrades.
KW - Control Pilot PWM Signal
KW - LoRaModbus Heterogeneous Communication
KW - Middleware System
KW - New Energy Vehicle Charging Piles
UR - https://www.scopus.com/pages/publications/105034900100
U2 - 10.1109/ICSMD67131.2025.11365360
DO - 10.1109/ICSMD67131.2025.11365360
M3 - 会议稿件
AN - SCOPUS:105034900100
T3 - ICSMD 2025 - International Conference on Sensing, Measurement and Data Analytics in the Era of Artificial Intelligence
BT - ICSMD 2025 - International Conference on Sensing, Measurement and Data Analytics in the Era of Artificial Intelligence
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 6th International Conference on Sensing, Measurement and Data Analytics in the Era of Artificial Intelligence, ICSMD 2025
Y2 - 21 November 2025 through 23 November 2025
ER -