What does daisy chain mean?

Simplified wiring:

By daisy-chaining, the amount and complexity of wiring required is reduced because each device only needs to connect to the device before and after it, rather than all devices connecting directly to a central controller. This not only simplifies system design but also helps reduce cost and weight.

Scalability:

Daisy-chain configuration makes system expansion easier. When adding more battery cells or modules, they are simply connected sequentially to the existing chain without the need for large-scale system restructuring.

Reliability and Diagnostics:

In some designs, a daisy-chain structure can increase system reliability because it can support communication from any point to another. If a link in the chain fails, diagnostic protocols can usually be used to locate the problem without affecting the operation of the entire system.

Data transmission:

In BMS, daisy chain is used to transmit battery parameters (such as voltage, temperature, etc.) back to the central control unit. This approach helps monitor and manage the status of the entire battery system in real time to ensure safe and efficient operation.

Application scenarios:

Daisy chain is widely used in battery management systems, especially in applications that need to manage a large number of battery cells, such as electric vehicles, large energy storage systems, etc. Through the daisy chain, BMS can effectively monitor and control each battery unit to ensure the performance and safety of the entire battery pack.