Control system with wireless messages containing message sequence information
First Claim
Patent Images
1. A system comprising:
- a host;
a field device; and
a wireless mesh network for routing wireless messages between the host and the field device, the wireless messages including message sequence information.
1 Assignment
0 Petitions
Accused Products
Abstract
A control system uses a wireless mesh network to provide communication between a host computer and field devices. The host and the field devices communicate with one another using wireless messages containing requests and responses that are routed through the wireless mesh network. The wireless messages include sequence information that allow the receiving device to identify and reject messages that are received out of order.
-
Citations
20 Claims
-
1. A system comprising:
-
a host;
a field device; and
a wireless mesh network for routing wireless messages between the host and the field device, the wireless messages including message sequence information. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A system comprising:
-
a plurality of field devices;
a host for sending control messages to field devices and receiving response messages from the field devices; and
a wireless network routing wireless messages among a plurality of nodes, each node including at least one of the plurality of field devices, wherein the wireless messages include content of a control message or response message and message sequence information relating to the control message or response message. - View Dependent Claims (7, 8, 9)
-
-
10. A method of sending messages from a host to field devices over a wireless network having a plurality of nodes, the method comprising:
-
sending a control message addressed to a field device address from the host to the wireless network;
sending a wireless message containing content of the control message and message sequence information through the network to the node having the corresponding wireless address; and
delivering the content of the control message to the field device if the message sequence information indicates that the control message is received in an acceptable order. - View Dependent Claims (11, 12, 13, 14)
-
-
15. A method of sending messages between a host and a selected field device over a wireless mesh network having a plurality of nodes, the method comprising:
-
generating at the host a control message to the selected field device;
sending the control message to the wireless network;
sending a wireless message containing content of the control message and message sequence information through the wireless network;
receiving the wireless message at a node associated with the selected field device; and
determining whether to deliver the content of the control message to the selected field device based upon the message sequence information. - View Dependent Claims (16, 17, 18)
-
-
19. The method of claim 154 and further comprising:
-
generating a response by the selected field device to the control message; and
sending the wireless message containing the response and the message ID number associated with the control message through the network. - View Dependent Claims (20)
-
Specification