Positioner and Valve Control System
First Claim
1. A control valve positioner, comprising:
- an electro-pneumatic converter that converts an electrical signal for designating a valve opening of a control valve into a pneumatic signal and that supplies the pneumatic signal to an operating device of the control valve to operate a valve shaft of the control valve,a valve-shaft position detection unit that detects a position of the valve shaft of the control valve;
a control signal generating unit that generates the electrical signal based on a target valve opening and the position of the valve shaft of the control valve detected by the valve-shaft position detection unit and that outputs the electrical signal to the electro-pneumatic converter;
a first communication unit performing communication with a host device;
a second communication unit performing communication with at least one sensor for monitoring a peripheral environment of the control valve by wireless communication; and
a communication controller connected to the first communication unit and the second communication unit, the communication controller controlling the first communication unit to transmit information on the peripheral environment acquired from the at least one sensor by the second communication unit through the first communication unit to the host device.
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Accused Products
Abstract
A positioner has an electro-pneumatic converter that supplies a pneumatic signal obtained by converting an electrical signal for designating a valve opening of a control valve to operate a valve shaft, a valve-shaft position detection unit that detects a position of the valve shaft, and a control signal generating unit that generates the electrical signal based on a valve opening target and the position of the valve shaft. The positioner includes a first communication unit performing communication with the host device, a second communication unit performing communication with at least one sensor for monitoring the peripheral environment of the control valve by wireless communication, and a communication controller that controls the first communication unit to transmit information on the peripheral environment acquired from the sensor by the second communication unit through the first communication unit to the host device.
32 Citations
8 Claims
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1. A control valve positioner, comprising:
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an electro-pneumatic converter that converts an electrical signal for designating a valve opening of a control valve into a pneumatic signal and that supplies the pneumatic signal to an operating device of the control valve to operate a valve shaft of the control valve, a valve-shaft position detection unit that detects a position of the valve shaft of the control valve; a control signal generating unit that generates the electrical signal based on a target valve opening and the position of the valve shaft of the control valve detected by the valve-shaft position detection unit and that outputs the electrical signal to the electro-pneumatic converter; a first communication unit performing communication with a host device; a second communication unit performing communication with at least one sensor for monitoring a peripheral environment of the control valve by wireless communication; and a communication controller connected to the first communication unit and the second communication unit, the communication controller controlling the first communication unit to transmit information on the peripheral environment acquired from the at least one sensor by the second communication unit through the first communication unit to the host device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification
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- Resources
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Current AssigneeAzbil Corporation (Azbil BioVigilant Incorporated)
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Original AssigneeAzbil Corporation (Azbil BioVigilant Incorporated)
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InventorsMORI, Seiji
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Application NumberUS15/492,402Publication NumberTime in Patent OfficeDaysField of SearchUS Class CurrentCPC Class CodesF16K 37/0083 by measuring valve parametersH04W 4/80 Services using short range ...
