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US 7,058,542 B2Granted
Wireless diagnostic system in industrial processes
AssigneeMetso Automation Oy
InventorsMarkus Hauhia, Mika Kreivi, Jouni Pyötsiä
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AssigneeMetso Automation Oy
InventorsMarkus Hauhia, Mika Kreivi, Jouni Pyötsiä
Estimating the term…
The invention relates to device diagnostics in industrial processes comprising field devices employing a field bus. A remote diagnostics device (1) is placed in connection with a process device (2), separate from the field devices and the field bus. The remote diagnostics device comprises diagnostics electronics which collects diagnostics data relating to the process device, and a transmitter part for wireless (17) transmission of the diagnostics data to a near-by field device. The field device comprises a receiver part (41) for wireless (17) reception of the diagnostics data from said remote diagnostics device (1). A field device control unit (430) analyses the received diagnostics data and transmits a diagnostics report over a field bus interface (44) and the field bus to a diagnostics computer.
A system for diagnosing a process device, the system comprising
A system according to any one of the preceding claims, characterized in that the field device forwards the diagnostics data in a substantially non-analysed form.
A system according to any one of the preceding claims, charactrized in that the field device can be configured to perform wireless reception of diagnostics data from two or more remote diagnostics devices (1), and to process the received data.
A system according to any one of the preceding claims, characterized in that the wireless transmission between the remote diagnostics device (1) and the field device is based on Bluetooth technology or a similar short-range wireless transmission technology.
A field device in a process automation system, the device comprising a control unit (430) and a field bus interface (44) for interfacing with a field bus (27, 45) of the process automation system and for communicating with at least one control computer (6, 23) over the field bus, characterized in that the field device (14A, 15A, 16A, 18A, 28A, 28B, 29A, 29B) comprises a receiver part (41) for wireless (17) reception of diagnostics data from a remote diagnostics device (1) placed separate from the field device for collecting diagnostics data of relating to a second process device (2), and that the control unit (430) is arranged to process the received diagnostics data and to transmit a diagnostics report over said field bus interface (44) and field bus (27, 45) to said control computer.
A diagnostics device for a process device in a process automation system in which field devices (14A, 15A, 16A, 18A, 28A, 28B, 29A, 29B) communicate over a field bus (27, 45), characterized in that the diagnostics device (1) is a remote diagnostics device meant to be placed separate from the field bus (27, 45) in connection with the process device (2), the remote diagnostics device comprising
Dependencies are inferred from the claim text.