How to eliminate interference from multiple control channels in an intelligent low-voltage monitoring unit?

Multi-channel control interference cancellation employs independent drives and isolation. Each control channel uses an independent drive power supply. Shielded twisted-pair cables are used for control signal lines. On the PCB, the control drive circuits are laid out in separate zones with a spacing greater than 10mm and a grounding guard ring in between. A PBZ1608E600Z0T ferrite bead (600Ω@100MHz) is installed at the power input of each channel. In terms of software, the action times of each control channel are staggered. Through this cancellation, control interference is reduced by more than 30dB, and each channel operates independently.