How to solve the mutual interference problem when multiple nodes in a concentrator collect data?

When a concentrator simultaneously collects data from multiple nodes (such as multiple electricity meters), signal interference between nodes may occur through shared power lines or spatial constraints, leading to data errors. Solutions include: providing independent power filtering for each acquisition node, such as by connecting a PBZ1608E600Z0T ferrite bead in series on each power line; using time-division multiplexing to stagger the communication or sampling times of each node; assigning a unique address to each node in the software protocol and adding data verification; for nodes acquiring data via the same bus (such as RS485), ensuring bus impedance matching (connecting 120Ω resistors at both ends) and adding a common-mode inductor CML3225A-510T at each node interface to suppress common-mode interference; and separating and bundling cables leading to different nodes during cabling to avoid long, parallel runs. Through hardware and software collaboration, the probability of mutual interference between multiple nodes can be reduced to below 10^-5.