This article aims to design a signal chain system that connects pressure sensors and control systems. The goal is to establish a simulated signal chain for a dynamic pressure controller and provide DUE software and a remote user interface to generate pressure reference signals and implement feedback controllers for doctors to monitor patient dynamics. The system is intended to offer doctors a real-time and reliable cardiac monitoring device. Tests have demonstrated that the instrument provides stable and reliable cardiac monitoring data while maintaining real-time performance and signal output stability. The simulated signal chain, utilizing a dynamic pressure controller, is combined with DUE software and a remote user interface to generate pressure reference signals and achieve feedback control. This device offers a safer and more reliable alternative to traditional heart monitoring methods, providing real-time and accurate data, which is especially beneficial for heart disease patients with critical and unstable conditions. By leveraging advanced sensor technology and robust software, the system ensures continuous monitoring and precise data delivery, thereby enhancing patient care and safety. This innovative approach is poised to significantly improve the monitoring and treatment of cardiac patients.