Because of the large number of devices involved, ABB rejected the idea of battery power for many of its wireless sensors and developed an ingenious solution in the form of a rotating magnetic field generated by electric cables that surround the work area.

• 因为涉及的设备数量较多，ABB否决了对其众多无线传感器利用电池供电的理念，而是开发了一个独创性的解决方案，通过工作领域周围的电线产生的旋转磁场供电。