During live or recorded broadcasts, radio and television programs typically require extended durations, demanding constant on-site presence from staff. Even when rebroadcasting content from other channels, crews must arrive early to set up equipment. For organizations like businesses, schools, and public institutions, broadcasting schedules are often divided into morning, afternoon, and evening slots, significantly increasing the workload for station personnel. The heavy workload completely disrupts the normal rest patterns of broadcasting station staff. To address the challenges faced by broadcast station staff during morning, noon, and evening shifts, Hunan Shuangln introduced the first-generation PBC Automatic Broadcast Controller in 1996. This innovative equipment consists of three core components: a central processing computer, I/O drivers, and control modules. It intelligently manages all broadcasting equipment in the control room, automatically coordinates the operational processes of broadcasting devices, and synchronizes power supply systems to ensure precise on/off timing according to broadcast schedules. After over a decade of market validation, the system has undergone continuous design improvements and functional enhancements through multiple upgrades, now reaching its 10th generation. Its capabilities fully meet the unmanned operation requirements of radio stations, television stations, relay stations, and broadcasting facilities across various sectors. The system’s safety, reliability, and stability have been proven by over 1,000 domestic users through more than a decade of uninterrupted operation, demonstrating consistent performance.