Performance monitor, evaluation and diagnosis system for wireless sensor networks
First Claim
1. A passive monitor system for a wireless sensor network (WSN) which includes one or more operational nodes, the passive monitor system comprising:
- one or more detecting nodes, each detecting node including (i) means for time synchronizing with other detecting nodes in the monitor system;
(ii) connector for physically connecting to at least one operational node of the WSN, the connector for physically connecting being a radio frequency (RF) connector, the RF connector including (a) an output terminal connected to the detecting node, (b) an output terminal for physically connecting to the at least one operational node and (c) an input terminal connected to an antenna of the physically connected operational node to share the physically connected operational node'"'"'s antenna;
(iii) means for independently and automatically acquiring an identification of the at least one physically connected operational node of the WSN to identify the at least one physically connected operational node;
(iv) means for only capturing wireless messages, information or signals sent between the physically connected identified operational node and other operation nodes of the WSN; and
(v) means for adding an identifier to the captured wireless messages, information or signals to form a recorded message.
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Abstract
A method of evaluating and diagnosing performance of an operating wireless sensor network without disturbing or burdening the network is disclosed. The operating wireless sensor network includes a plurality of operational nodes. A system, which comprises a plurality of detecting nodes and a performance evaluation and diagnosis platform, is provided in order to implement the present method. After time synchronization, the detecting node is connected with an operational node. After the detecting node estimates MAC or network layer address of its corresponding operational node, it will capture any transmission of or around the operational node, and upload captured packets to the evaluation and diagnosis platform. The evaluation and diagnosis platform produce a report by analyzing the acquired information from all detecting nodes.
9 Citations
22 Claims
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1. A passive monitor system for a wireless sensor network (WSN) which includes one or more operational nodes, the passive monitor system comprising:
- one or more detecting nodes, each detecting node including (i) means for time synchronizing with other detecting nodes in the monitor system;
(ii) connector for physically connecting to at least one operational node of the WSN, the connector for physically connecting being a radio frequency (RF) connector, the RF connector including (a) an output terminal connected to the detecting node, (b) an output terminal for physically connecting to the at least one operational node and (c) an input terminal connected to an antenna of the physically connected operational node to share the physically connected operational node'"'"'s antenna;
(iii) means for independently and automatically acquiring an identification of the at least one physically connected operational node of the WSN to identify the at least one physically connected operational node;
(iv) means for only capturing wireless messages, information or signals sent between the physically connected identified operational node and other operation nodes of the WSN; and
(v) means for adding an identifier to the captured wireless messages, information or signals to form a recorded message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- one or more detecting nodes, each detecting node including (i) means for time synchronizing with other detecting nodes in the monitor system;
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11. A passive method of monitoring the performance of a wireless sensor network (WSN) of operational nodes, said method operable on a computing device having a processor and memory, and comprising:
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(a) physically connecting a detecting node to at least one of the operational nodes with a radio frequency (RF) connector, the RF connector including (i) an output terminal connected to one detecting node, (ii) an output terminal for physically connecting to the operational node and (iii) an input terminal connected to an antenna of the physically connected operational node to share the physically connected operational node'"'"'s antenna with the physically connected detecting node; (b) if two or more detecting nodes are physically connected, time synchronizing the two or more detecting nodes; (c) each detecting node independently and automatically acquiring an identification of its physically connected at least one operational node; (d) each detecting node capturing only the wireless messages, information or signals transmitted between its physically connected identified operational node and other operational nodes of the WSN; (e) adding to the captured wireless messages, information or signals one or more identifiers to form a recorded message; and (f) using the recorded message to monitor the performance of the WSN system. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A WSN (wireless sensor network) detecting node comprising:
- (a) a radio frequency (RF) connector for physically connecting to an operational node, the RF connector including (i) an output terminal connected to the detecting node, (ii) an output terminal for physically connecting the WSN detecting node to the operational node and (iii) an input terminal connected to an antenna of the physically connected operational node to share the physically connected operational node'"'"'s antenna;
(b) means for time synchronization with one or more detecting nodes;
(c) means for independently and automatically acquiring an identification of the physically connected operational node (d) means for only capturing wireless messages, information or signals sent between the physically connected identified operational node and other operational nodes of the WSN, and (e) means for adding an identifier to the captured wireless messages, information or signals to form a recorded message. - View Dependent Claims (19, 20, 21, 22)
- (a) a radio frequency (RF) connector for physically connecting to an operational node, the RF connector including (i) an output terminal connected to the detecting node, (ii) an output terminal for physically connecting the WSN detecting node to the operational node and (iii) an input terminal connected to an antenna of the physically connected operational node to share the physically connected operational node'"'"'s antenna;
Specification