Distributed process control system and method utilizing wireless communication of packet messages
First Claim
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1. A distributed control and/or monitoring system comprising:
- a host computer;
a host interface connected to the host computer;
a communication bus;
a plurality of field devices connected to the communication bus and communicating over the communication bus with packet messages; and
a wireless bus interface connected to the communication bus for receiving the packet messages from the field devices, and wirelessly transmitting the packet messages to the host interface, and for wirelessly receiving the packet messages from the host interface and transmitting the packet messages over the communication bus to the field devices.
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Abstract
A distributed control and/or monitoring system and method includes a local application and a remote application separated from the local application. The local application includes a host computer. The remote application includes a plurality of field devices and a communication bus connected to the plurality of field devices. Packet messages are wirelessly communicated between the local application and the remote application such that the host computer and field devices can communicate with each other as if they were directly connected to the same communication bus.
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Citations
19 Claims
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1. A distributed control and/or monitoring system comprising:
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a host computer;
a host interface connected to the host computer;
a communication bus;
a plurality of field devices connected to the communication bus and communicating over the communication bus with packet messages; and
a wireless bus interface connected to the communication bus for receiving the packet messages from the field devices, and wirelessly transmitting the packet messages to the host interface, and for wirelessly receiving the packet messages from the host interface and transmitting the packet messages over the communication bus to the field devices. - View Dependent Claims (2, 3, 4, 5)
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6. A distributed control and/or monitoring system comprising:
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a local application including a host computer; and
a remote application, separated from the local application, including a plurality of field devices and a first communication bus connected to the plurality of field devices; and
means for wirelessly communicating a packet message between the local application and the remote application. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of wirelessly communicating packet messages through a distributed control and/or monitoring system, the method comprising:
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generating a first electrical packet message with a field device onto a communication bus;
transforming the first electrical packet message into a first electromagnetic packet message with a first interface;
receiving the first electromagnetic packet message from the first interface with a second interface;
transforming the first electromagnetic packet message into a second electrical packet message with the second interface; and
communicating the second electrical packet message to a host computer. - View Dependent Claims (16, 17, 18)
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19. A distributed control and/or monitoring system comprising:
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a local application including a host computer;
a remote application separated from the local application and including a plurality of field devices and a communication bus; and
means for communicating a packet message between the local application and the remote application as if they were connected to the same communication bus.
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Specification