| 摘要 |
A fire suppression and control system includes a unique fire pump controller which uses advanced technologies in a manner consistent with the need for high reliability in the fire protection industry. A preferred controller includes three PIC chips including a control PIC for controlling operation of the water pump, a power monitor PIC for receiving all voltage and current inputs to the controller, and a data recorder PIC for collection and storage of data relevant to the system. The controller may also include an electronically coupled HMI which queries the controller for information to display, wherein the HMI does not pass information between components of the controller and is capable of being damaged without stopping or preventing operation of the controller, and an isolation scheme for isolating the controller from incoming energy transients, such as lightning, the isolation scheme comprising a relay and opto-isolators to drive the relay and increase the isolation by a factor of at least two over the relay alone. |
