| 摘要 |
<p>An improved spa, hydrotherapy tub, bathtub and whirlpool control system utilizing a centralized device controller, a batteryless and contactless removable control keyboard which operates without the use of wires, cables, contacts, and an RF exciter/reader energizing unit. All systems components are interconnected by an expandable digital communications bus. Distributed intelligence is used to partition the software so that the software components which drive the peripheral device (drivers) which are static remain in the device controllers under the tub. Control software which defines the key functions, LED operation, displays, and control parameters is placed in the removable keyboard.</p> |
