FIELD: electricity.
SUBSTANCE: process device (34, 360, 500, 600) consists of controller (36, 362) and wireless communication module (32, 366, 506). Wireless communication module (32, 366, 506) is connected to controller (36, 362). There provided is electric power generating module (38, 365, 508, 602, 604, 620) that generates electricity for process device. Electric power generating module (38, 365, 508, 602, 604, 620) can be located inside process device or can be a separate unit connected to it.
EFFECT: improving of power supply reliability.
2 cl, 13 dwg
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