| 摘要 |
A valve actuator has a set of sensors ( 2 ) for detection of the internal parameters of the actuator, a controller ( 3 ) for recording and storing the parameters and the operations performed by the actuator, a wireless module ( 5 ) to temporarily and omnidirectionally connect the actuator with a PDA (Personal Data Assistant) or a PC (pocket PC) ( 6 ) which controls the actuation thereof. The wireless module ( 5 ) further allows to download the collected data for analysis and to achieve an early diagnosis of any failure and/or inefficiency of the actuator. The wireless module ( 5 ) includes a transceiver operating at the frequency of 2.4 GHz.
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