CA2509844C - System and method of visualizing network layout and performance characteristics in a wireless network - Google Patents
System and method of visualizing network layout and performance characteristics in a wireless network Download PDFInfo
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- CA2509844C CA2509844C CA2509844A CA2509844A CA2509844C CA 2509844 C CA2509844 C CA 2509844C CA 2509844 A CA2509844 A CA 2509844A CA 2509844 A CA2509844 A CA 2509844A CA 2509844 C CA2509844 C CA 2509844C
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- meters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
- H04W8/245—Transfer of terminal data from a network towards a terminal
Abstract
A system for visually detailing the layout of a wireless network aid for providing performance statistics regarding the network. Graphical diagrams are generated in accordance with a request wherein the diagrams illustrate nodes and data collectors in the wireless network. The nodes record data related to a commodity usage and transmit the data to the collectors, which in turn transmit aggregated data from a plurality of nodes to a central data collection server.
Description
SYSTEM AND METHOD OF VISUALIZING NET'VVO~C LAYOUT ANri PEItF4ItMANCE Cl~IAIZACTERISTICS IN A WIRELESS NETWORIC
FIELD OF THE INyENT~QN
[0001] The present invention relates to wireless networks for collecting data, and more particularly, to systems and methods of visualizing fixed wireless network layouts and performance charactEristies for such networks.
BACKGROUND OF THE rNVENTION
[00021 The collection of meter data from electrical etlergy, water, and gas meters has traditionally been performed by human meter-readers. The meter-reader travels to the meter location, which is frequently on the customer's premises, visually inspects the meter, and records the reading. The meter-reader may be prevented from gaining access to the meter as a result of inclement weather or, where the meter is located within the customer's premises, due to an alasentee customer. This iuethodology of meter data collection is labor intensive, prone to human error, arid often results in stale and inflexible metering data.
[0003] Some meters have been enhanced to include a one-way radio trailsmitter for transmitting metering data to a receiving device. A person collecting meter data that is equipped with an appropriate radio receiver need only come into proximity with a meter to read the meter data and need not visually inspect the meter. Thus, a mater-reader may walk or drive by a meter location to take a meter reading. While this represents an improvement over visiting and visually inspecting each meter, it still requires human involvement in the process.
Caller ID21b56834391 FauID: A2696 [0004] An automated means for collecting meter data involves a fixed wireless network. Devices such as, for example, repeaters and gateways are permmently affixed on roo~ops and pole-tops and strategically positYOned to receive data from enhanced meters fitted with radio-transmitters. Typically, these transmitters operate in the 902-9z8 MHz range and employ Frequency Hopping Spread Spectrum (FHSS) technology to spread the transmitted energy over a large portion of the available bandwidth.
[0045] Data is transmitted from the meters to the repeaters and gateways and ultimately communicated to a central location. While fixed wireless networks greatly reduce human involvement in the process of meter reading, such systems require the installation and maintenance of a fiixed network of repeaters, gateways, and servers.
Identifying an acceptable location for a repeater or server and physically placing the device in the desired location on top of a building or utility pole is a tedious and labor-intensive operation.
hurthermore, each meter that is installed in the network needs to be manually configured to communicate with a particular portion of the established network. When a portion of the network fails to operate as intended, human intervention is typically required to test the effected components and reconhgore the network to return it to operation.
(000b] Thus, while existing fixed wireless systems have reduced the need for human involvement in the daily collection of meter data, such systems require substantial human investment in planning, installation, and maintenance and are relatively inflexible and difficult to manage. Therefore, there is a need for a system to visually illustrate the wireless network layout and provide performance characteristics to simplify the maintenance of such systems.
[0007] The present invention is directed to methods and systems of providing a visualization of a wireless network layout as well as performance characteristics of the network.
Izt accordance with an aspect of the invention, there is provided a wireless network and management system to provide a graphical view of a network layout. The system includes a local area network comprising wireless nodes, a data collection server that receives operational data from at least one ofthe wireless nodes, and a nefwork management system that maintains a database of states of the wireless nodes. Changes in state of the wireless nodes are received by the data collection server and forwarded to the network management system. The network management system provides reports on the wireless network based an the state information stored therein.
[0008] In accordance to a feature of the invention, the database maintained by the network management system may include a current network state database and a historical Caller ID,21566834391 FaxID: A2696 network state database. The network management system may include a user interface for receiving r~uests and a graph rendering tool that receives the requests and renders a graphical view of the network layout. The network management system may retrieve network state information from the historical network state database to produce the graplucal view. In addition, the graphical view may be configurable via the user interface to visually identify predetemined performance parameters. Further, the graph rendering tool may operate independent of the user interface and produce the graphical view in response to network state changes, and the network management system may store the graphical view until requested.
[0009] In accordance with another aspect of the present invention, there is provided a system for providing a graphical view of a network layout. The system includes a data collection server that receives operational data from wireless nodes, a network management system that maintains a database of states of the wireless nodes, and a graph rendering tool that renders a graphical view of the network layout in accordance with the states of the wireless nodes.
[0010] In acCOrdance with another aspect of the present invention, there is provided a method far providing a graphical view of a network layout. The method includes receiving operational data from wireless nodes; maintaining a database of states of the wireless nodes in accordance with the operational data; and rendering a graphical view of the network layout in accordance with the states of the wireless nodes.
[0011] Additional features and advantages of the invention will be made apparent from the following detailed description of illustrative embodiments that proceeds with reference to the accompanying drawings, BRIEF DESCI~PTION OF THE DRAWINGS
[0012] The foregoing summary, as well as the following detailed description of preferred embodiments, is better understood wlien read in conj unction with tire appended drawings. For the purpose of illustrating the invention, there is shown in the drawings exemplary constructions of the invention; however, the invention is not limited to the specific methods and instrumentalities disclosed. hl the drawings:
[0013] Fig. 1 is a diagram of a wireless system for collecting data from remote devices;
[0014] Fig. 2 expands upon the diagram of Fig. 1 and illustrates a system in which the present invention is embodied;
[0015] Fig. ~ illustrates an exemplary sequence of events resulting from a change in network state;
[0016] Fig. 4 shows the process of producing a graphical diagram of the network layout;
Caller IDf1~683d391 FaxID; It2691 [0017] Fig. 5 illustrates an exemplary text input f le for a graph rendering tool; and (0018] Fig. fi illustrates an ex~axlplary output graph diagram based on the input file of Fig. S.
DETAILED riESCRIPTI01~ OF 1(LL1JSTRATIVE EM130DIMENTS
[0019] Exemplary systems and methods for gathering meter data are described beivw with reference to Figs. 1-6. It will be appreciated by thane of ordinary skill in the art that the description given herein with respect to thane figures is for exemplary purposes only and is not intended in any way to limit the scope of potential embodiments.
[0020] Generally, a plurality of meter devices, which operate to track usage of a service ar commodity such as, for example, electricity, water, and gas, are operable to wirelessly communicate with each other. A collector is operable to automatically identify and register meters for communication with the collector. When a meter is installed, the meter becomes registered with the collector that can provide a communication path to the meter. The collectors receive and compile metering data from a plurality of meter devices via wireless communications. A communications server communicates witli the collectors to retrieve the compiled meter data.
[0021] Fig. 1 provides a diagram of an exemplary mate~ing system 110. System comprises a plurality of maters I I4, wluch are operable to sense and record usage of a service or commodity 5ucI7 as, far example, electricity, water, or gas. Meters l I4 may be located at customer premises such as, for example, a home or place of business. Meters 114 comprise an antenna and are operable to transmit data, including service usage data, wirelessly. Meters 114 may be further operable to receive data wir elessly as well. In azx illustrative embodiment, meters 114 may he, for example, a electrical meters manufactured by Elster Electricity, LLG.
[0022] System 110 further comprises collectors 116. Collectors 116 are also meters operable to detect and record usage of a service or commodity such as, for example, electricity, water, or gas. Collectors 116 comprise an antenna and are operable to send and receive data wirelessly. In particular, collectors 11G are operable to send data to and receive data. from meters 114. In an illustrative embodiment, meters 114 may be, for example, an electrical meter manufactured by Elster Electricity, LLC.
[0023] A collector 1 I6 and the rtteters 114 far wlvcb it is configured to receive meter data define a subnet 120 of system 110. Far each subnet 120, data is collected at collector 116 and periodically transmitted to a data collection server 122. The data collection server 122 stares the data for analysis and preparation of bills. The data collection server 122 may be a specially programmed general purpose computing system and may communicate with collectors 11~
,q,_ CaIIer ID21~6834391 F~zID; A2698 wirelessly or via a wire line coririeCtion such as, for example, a dial-up telephone connection or fixed wixe network.
(0024] Generally, collector 116 and meters 114 communicate with and amongst one another using any one of several robust wireless techniques such as, for example, frequency hopping spread spectrum (FI~SS) and direct sequence spread spectr~un {DSSS).
(0025] Referring now to Fig. 2, there is illustrated a system in which the present invention may be embodied. As the data collection server 122 collects metered and operational data from multiple collectors 116, changes in network state such as new nodes registering, nodes unregistering, node paths changing, etc., in a collector's LAN are detected by the server 122 and forwarded to a Network Management System (NMS) 126. The NMS 126 maintains a database describing the current state of the global fixed network system (current network state 130), and a database describing the historical state of the system (historical network state 132). The historical network state 132 is a database from which the state of the network at a particular point in the past can be reconstructed. The NMS 126 is responsible for, amongst other things, providing reports about the state of the network.
[0026) An exemplary sequence of events resulting from a change in network slate will now be explained with reference to Fig. 3. Initial ly, the meter 114a changes from collector A to collector B. Next, the data collection server 122 detects the change in the communication path of meter 114a from LAN A to LAN B. The data collection server 122 then sends network state updates to the network management system 126. The network management system 126 then updates the current network configuration 130 and the historical network configuration 132 to reflect the change. This exemplary sequence of events causes the NMS 126 to update both historical and current network state databases. These operations are preferably automatic and require no user intervention, In this way, the system maintauzs a substantially up to date description of the state of the fixed network of meters that it is responsible for managing.
[0027] The invention further produces graphs (diagrams) of a particular set ofwireless devices {e.g., meters registered to a particular collector), where the set of wireless devices may be defined according to uses-specified parameters. Fig. 4 illustrates the process of producing the diagram. Initially, a request 134 comes from a user interface 142 containing a collector ID and graph parameters. The user interface 142 may comprise a browser-based interface that may be accessed via a web browser such as Internet Explorer available from MICRQS4FT.
[002$] The network management system 126 retrieves network state information, performance information, meter characteristics, etc., from the historical network State database 132 as needed to fulfill the request 134. The network management system 126 produces a graph _$_ Caller ID:21~6834391 FaalO: (12699 description 136, including all edges, vertices, labels, and other information required to produce the graph.
[0029) The graph description 136 is in a language that can be rendered into an image by a graph rendering tool 138. An exemplary graph rendering tool is the DOT or NEATO software, both of which are part of the Crrapliviz package available from AT&T Research.
These tools consume a text file containing the graph description in the "DOT language,"' and produce an image of the graph. The kph is laid out in the image according to a variety of customizable rules. It is preferable that the image output (LAN graph image 140) is in the Scalable Vector Graphic (SVG) format, which is itself a text file that can be rendered into an on-screen image by a web browser (or standalone viewer). Alternatively, the output format may be any image file, such as JPG, GIF, bitmap, etc. The graph rendering tool 13$ outputs the rendered LAN graph image 140 (e.g., an SVG file), that is returned to the user interface layer I42, to be displayed to the user in, for example, the web browser.
[0030] Users 146 may select, via the interface 142: nodes falling below a predetermined performance percentage, nodes that have changed their network registration more than a predetermined number of times within a specified time frame, nodes having a percenntage of the network registered beneath them, etc. Also, in accordance wide the present invention, the LAN graph image 140 is produced as needed, but may also be produced in response to network state changes and stored (cached) until needed. This approach is preferred because of its increased performance as the graph layout step is computationally expensive for large graphs.
(0031) An exemplary graph description file is shown in Fig. ~, which is a text file in the format required by the DOT tool from the Graphvix package. The DOT language file describes edges, vertices, and Labels that make up a graph describing the relationship between the meters that will appear in an output graph diagram. An exemplary output graph diagr~n is shown in Fig. 6, wherein vertices in the graph represent meters, and edges represent communication paths between meters and repeaters or between meters and collectors or between repeaters and collectors. Fig. 6 further illustrates a reading performance (as a percentage or other metric) between the meter and the collector. The reading perfom~ance may include or ignore retries.
The edge length can be scaled according to the reading performance to make poor performing nodes appear farther from the collector. In addition, color coding may be used to indicate various parameters of importance.
(ao3z~ Wlule systems and methods have been descabed and illustrated with reference to specific embodiments, those skilled in the art v~ill recognize that modification and variations may be made without departing from the principles described above auto set forth in the Caller ID;29~6834391 FazID: A2100 following claims. Accordingly, reference should be made td the fohovving claims as describing the scope of disclosed embodiments.
_7_ Caller iD,21~683439 J FazID: A2101
FIELD OF THE INyENT~QN
[0001] The present invention relates to wireless networks for collecting data, and more particularly, to systems and methods of visualizing fixed wireless network layouts and performance charactEristies for such networks.
BACKGROUND OF THE rNVENTION
[00021 The collection of meter data from electrical etlergy, water, and gas meters has traditionally been performed by human meter-readers. The meter-reader travels to the meter location, which is frequently on the customer's premises, visually inspects the meter, and records the reading. The meter-reader may be prevented from gaining access to the meter as a result of inclement weather or, where the meter is located within the customer's premises, due to an alasentee customer. This iuethodology of meter data collection is labor intensive, prone to human error, arid often results in stale and inflexible metering data.
[0003] Some meters have been enhanced to include a one-way radio trailsmitter for transmitting metering data to a receiving device. A person collecting meter data that is equipped with an appropriate radio receiver need only come into proximity with a meter to read the meter data and need not visually inspect the meter. Thus, a mater-reader may walk or drive by a meter location to take a meter reading. While this represents an improvement over visiting and visually inspecting each meter, it still requires human involvement in the process.
Caller ID21b56834391 FauID: A2696 [0004] An automated means for collecting meter data involves a fixed wireless network. Devices such as, for example, repeaters and gateways are permmently affixed on roo~ops and pole-tops and strategically positYOned to receive data from enhanced meters fitted with radio-transmitters. Typically, these transmitters operate in the 902-9z8 MHz range and employ Frequency Hopping Spread Spectrum (FHSS) technology to spread the transmitted energy over a large portion of the available bandwidth.
[0045] Data is transmitted from the meters to the repeaters and gateways and ultimately communicated to a central location. While fixed wireless networks greatly reduce human involvement in the process of meter reading, such systems require the installation and maintenance of a fiixed network of repeaters, gateways, and servers.
Identifying an acceptable location for a repeater or server and physically placing the device in the desired location on top of a building or utility pole is a tedious and labor-intensive operation.
hurthermore, each meter that is installed in the network needs to be manually configured to communicate with a particular portion of the established network. When a portion of the network fails to operate as intended, human intervention is typically required to test the effected components and reconhgore the network to return it to operation.
(000b] Thus, while existing fixed wireless systems have reduced the need for human involvement in the daily collection of meter data, such systems require substantial human investment in planning, installation, and maintenance and are relatively inflexible and difficult to manage. Therefore, there is a need for a system to visually illustrate the wireless network layout and provide performance characteristics to simplify the maintenance of such systems.
[0007] The present invention is directed to methods and systems of providing a visualization of a wireless network layout as well as performance characteristics of the network.
Izt accordance with an aspect of the invention, there is provided a wireless network and management system to provide a graphical view of a network layout. The system includes a local area network comprising wireless nodes, a data collection server that receives operational data from at least one ofthe wireless nodes, and a nefwork management system that maintains a database of states of the wireless nodes. Changes in state of the wireless nodes are received by the data collection server and forwarded to the network management system. The network management system provides reports on the wireless network based an the state information stored therein.
[0008] In accordance to a feature of the invention, the database maintained by the network management system may include a current network state database and a historical Caller ID,21566834391 FaxID: A2696 network state database. The network management system may include a user interface for receiving r~uests and a graph rendering tool that receives the requests and renders a graphical view of the network layout. The network management system may retrieve network state information from the historical network state database to produce the graplucal view. In addition, the graphical view may be configurable via the user interface to visually identify predetemined performance parameters. Further, the graph rendering tool may operate independent of the user interface and produce the graphical view in response to network state changes, and the network management system may store the graphical view until requested.
[0009] In accordance with another aspect of the present invention, there is provided a system for providing a graphical view of a network layout. The system includes a data collection server that receives operational data from wireless nodes, a network management system that maintains a database of states of the wireless nodes, and a graph rendering tool that renders a graphical view of the network layout in accordance with the states of the wireless nodes.
[0010] In acCOrdance with another aspect of the present invention, there is provided a method far providing a graphical view of a network layout. The method includes receiving operational data from wireless nodes; maintaining a database of states of the wireless nodes in accordance with the operational data; and rendering a graphical view of the network layout in accordance with the states of the wireless nodes.
[0011] Additional features and advantages of the invention will be made apparent from the following detailed description of illustrative embodiments that proceeds with reference to the accompanying drawings, BRIEF DESCI~PTION OF THE DRAWINGS
[0012] The foregoing summary, as well as the following detailed description of preferred embodiments, is better understood wlien read in conj unction with tire appended drawings. For the purpose of illustrating the invention, there is shown in the drawings exemplary constructions of the invention; however, the invention is not limited to the specific methods and instrumentalities disclosed. hl the drawings:
[0013] Fig. 1 is a diagram of a wireless system for collecting data from remote devices;
[0014] Fig. 2 expands upon the diagram of Fig. 1 and illustrates a system in which the present invention is embodied;
[0015] Fig. ~ illustrates an exemplary sequence of events resulting from a change in network state;
[0016] Fig. 4 shows the process of producing a graphical diagram of the network layout;
Caller IDf1~683d391 FaxID; It2691 [0017] Fig. 5 illustrates an exemplary text input f le for a graph rendering tool; and (0018] Fig. fi illustrates an ex~axlplary output graph diagram based on the input file of Fig. S.
DETAILED riESCRIPTI01~ OF 1(LL1JSTRATIVE EM130DIMENTS
[0019] Exemplary systems and methods for gathering meter data are described beivw with reference to Figs. 1-6. It will be appreciated by thane of ordinary skill in the art that the description given herein with respect to thane figures is for exemplary purposes only and is not intended in any way to limit the scope of potential embodiments.
[0020] Generally, a plurality of meter devices, which operate to track usage of a service ar commodity such as, for example, electricity, water, and gas, are operable to wirelessly communicate with each other. A collector is operable to automatically identify and register meters for communication with the collector. When a meter is installed, the meter becomes registered with the collector that can provide a communication path to the meter. The collectors receive and compile metering data from a plurality of meter devices via wireless communications. A communications server communicates witli the collectors to retrieve the compiled meter data.
[0021] Fig. 1 provides a diagram of an exemplary mate~ing system 110. System comprises a plurality of maters I I4, wluch are operable to sense and record usage of a service or commodity 5ucI7 as, far example, electricity, water, or gas. Meters l I4 may be located at customer premises such as, for example, a home or place of business. Meters 114 comprise an antenna and are operable to transmit data, including service usage data, wirelessly. Meters 114 may be further operable to receive data wir elessly as well. In azx illustrative embodiment, meters 114 may he, for example, a electrical meters manufactured by Elster Electricity, LLG.
[0022] System 110 further comprises collectors 116. Collectors 116 are also meters operable to detect and record usage of a service or commodity such as, for example, electricity, water, or gas. Collectors 116 comprise an antenna and are operable to send and receive data wirelessly. In particular, collectors 11G are operable to send data to and receive data. from meters 114. In an illustrative embodiment, meters 114 may be, for example, an electrical meter manufactured by Elster Electricity, LLC.
[0023] A collector 1 I6 and the rtteters 114 far wlvcb it is configured to receive meter data define a subnet 120 of system 110. Far each subnet 120, data is collected at collector 116 and periodically transmitted to a data collection server 122. The data collection server 122 stares the data for analysis and preparation of bills. The data collection server 122 may be a specially programmed general purpose computing system and may communicate with collectors 11~
,q,_ CaIIer ID21~6834391 F~zID; A2698 wirelessly or via a wire line coririeCtion such as, for example, a dial-up telephone connection or fixed wixe network.
(0024] Generally, collector 116 and meters 114 communicate with and amongst one another using any one of several robust wireless techniques such as, for example, frequency hopping spread spectrum (FI~SS) and direct sequence spread spectr~un {DSSS).
(0025] Referring now to Fig. 2, there is illustrated a system in which the present invention may be embodied. As the data collection server 122 collects metered and operational data from multiple collectors 116, changes in network state such as new nodes registering, nodes unregistering, node paths changing, etc., in a collector's LAN are detected by the server 122 and forwarded to a Network Management System (NMS) 126. The NMS 126 maintains a database describing the current state of the global fixed network system (current network state 130), and a database describing the historical state of the system (historical network state 132). The historical network state 132 is a database from which the state of the network at a particular point in the past can be reconstructed. The NMS 126 is responsible for, amongst other things, providing reports about the state of the network.
[0026) An exemplary sequence of events resulting from a change in network slate will now be explained with reference to Fig. 3. Initial ly, the meter 114a changes from collector A to collector B. Next, the data collection server 122 detects the change in the communication path of meter 114a from LAN A to LAN B. The data collection server 122 then sends network state updates to the network management system 126. The network management system 126 then updates the current network configuration 130 and the historical network configuration 132 to reflect the change. This exemplary sequence of events causes the NMS 126 to update both historical and current network state databases. These operations are preferably automatic and require no user intervention, In this way, the system maintauzs a substantially up to date description of the state of the fixed network of meters that it is responsible for managing.
[0027] The invention further produces graphs (diagrams) of a particular set ofwireless devices {e.g., meters registered to a particular collector), where the set of wireless devices may be defined according to uses-specified parameters. Fig. 4 illustrates the process of producing the diagram. Initially, a request 134 comes from a user interface 142 containing a collector ID and graph parameters. The user interface 142 may comprise a browser-based interface that may be accessed via a web browser such as Internet Explorer available from MICRQS4FT.
[002$] The network management system 126 retrieves network state information, performance information, meter characteristics, etc., from the historical network State database 132 as needed to fulfill the request 134. The network management system 126 produces a graph _$_ Caller ID:21~6834391 FaalO: (12699 description 136, including all edges, vertices, labels, and other information required to produce the graph.
[0029) The graph description 136 is in a language that can be rendered into an image by a graph rendering tool 138. An exemplary graph rendering tool is the DOT or NEATO software, both of which are part of the Crrapliviz package available from AT&T Research.
These tools consume a text file containing the graph description in the "DOT language,"' and produce an image of the graph. The kph is laid out in the image according to a variety of customizable rules. It is preferable that the image output (LAN graph image 140) is in the Scalable Vector Graphic (SVG) format, which is itself a text file that can be rendered into an on-screen image by a web browser (or standalone viewer). Alternatively, the output format may be any image file, such as JPG, GIF, bitmap, etc. The graph rendering tool 13$ outputs the rendered LAN graph image 140 (e.g., an SVG file), that is returned to the user interface layer I42, to be displayed to the user in, for example, the web browser.
[0030] Users 146 may select, via the interface 142: nodes falling below a predetermined performance percentage, nodes that have changed their network registration more than a predetermined number of times within a specified time frame, nodes having a percenntage of the network registered beneath them, etc. Also, in accordance wide the present invention, the LAN graph image 140 is produced as needed, but may also be produced in response to network state changes and stored (cached) until needed. This approach is preferred because of its increased performance as the graph layout step is computationally expensive for large graphs.
(0031) An exemplary graph description file is shown in Fig. ~, which is a text file in the format required by the DOT tool from the Graphvix package. The DOT language file describes edges, vertices, and Labels that make up a graph describing the relationship between the meters that will appear in an output graph diagram. An exemplary output graph diagr~n is shown in Fig. 6, wherein vertices in the graph represent meters, and edges represent communication paths between meters and repeaters or between meters and collectors or between repeaters and collectors. Fig. 6 further illustrates a reading performance (as a percentage or other metric) between the meter and the collector. The reading perfom~ance may include or ignore retries.
The edge length can be scaled according to the reading performance to make poor performing nodes appear farther from the collector. In addition, color coding may be used to indicate various parameters of importance.
(ao3z~ Wlule systems and methods have been descabed and illustrated with reference to specific embodiments, those skilled in the art v~ill recognize that modification and variations may be made without departing from the principles described above auto set forth in the Caller ID;29~6834391 FazID: A2100 following claims. Accordingly, reference should be made td the fohovving claims as describing the scope of disclosed embodiments.
_7_ Caller iD,21~683439 J FazID: A2101
Claims (20)
1. A system comprising:
a wireless network comprising a collector and a plurality of meters that communicate wirelessly with the collector, each of the meters having a wireless communication path to the collector that is either a direct path or an indirect path through one or more intermediate meters that serve as repeaters, the wireless communication paths between each meter and the collector defining a layout of the network;
a data collection server that receives from the collector operational data concerning the collector and each of the meters; and a network management system that maintains a database of states of the collector and the meters, wherein state changes of the collector and the meters are received by said data collection server and forwarded to said network management system, and wherein said network management system provides reports on said wireless network in accordance with said state changes.
a wireless network comprising a collector and a plurality of meters that communicate wirelessly with the collector, each of the meters having a wireless communication path to the collector that is either a direct path or an indirect path through one or more intermediate meters that serve as repeaters, the wireless communication paths between each meter and the collector defining a layout of the network;
a data collection server that receives from the collector operational data concerning the collector and each of the meters; and a network management system that maintains a database of states of the collector and the meters, wherein state changes of the collector and the meters are received by said data collection server and forwarded to said network management system, and wherein said network management system provides reports on said wireless network in accordance with said state changes.
2. The system of claim 1, wherein said database maintained by said network management system comprises a current network state database and a historical network state database.
3. The system of claim 2, said network management system comprising:
a user interface for receiving requests; and a graph rendering tool that receives said requests and renders a graphical view of said network layout.
a user interface for receiving requests; and a graph rendering tool that receives said requests and renders a graphical view of said network layout.
4. The system of claim 3, wherein said network management system retrieves network state information from said historical network state database to produce said graphical view.
5. The system of claim 3, wherein said graphical view is configurable via said user interface to visually identify predetermined performance parameters.
6. The system of claim 3, wherein said graph rendering tool operates independent of said user interface and produce said graphical view in response to said state changes, and wherein said network management system stores said graphical view until requested.
7. A system for providing a graphical view of a network layout, comprising:
a data collection server that receives operational data from a wireless network that comprises a collector and a plurality of meters that communicate wirelessly with the collector, each of the meters having a wireless communication path to the collector that is either a direct path or an indirect path through one or more intermediate meters that serve as repeaters, the wireless communication paths between each meter and the collector defining a layout of the network;
a network management system that maintains a database of states of the collector and the meters; and a graph rendering tool that renders a graphical view of said network layout in accordance with said states of the collector and the meters.
wherein state changes of the collector and the meters are received by said data collection server and forwarded to said network management system, and wherein said network management system provides reports on said network layout in accordance with said state changes.
a data collection server that receives operational data from a wireless network that comprises a collector and a plurality of meters that communicate wirelessly with the collector, each of the meters having a wireless communication path to the collector that is either a direct path or an indirect path through one or more intermediate meters that serve as repeaters, the wireless communication paths between each meter and the collector defining a layout of the network;
a network management system that maintains a database of states of the collector and the meters; and a graph rendering tool that renders a graphical view of said network layout in accordance with said states of the collector and the meters.
wherein state changes of the collector and the meters are received by said data collection server and forwarded to said network management system, and wherein said network management system provides reports on said network layout in accordance with said state changes.
8. The system of claim 7, wherein said database maintained by said network management system comprises a current network state database and a historical network state database.
9 9. The system of claim 8, said network management system further comprising a user interface for receiving requests for said graphical view.
10. The system of claim 9, wherein said network management system retrieves network state information from said historical network state database to produce said graphical view.
11. The system of claim 9, wherein said graphical view is configurable via said user interface to visually identify predetermined performance parameters.
12. The system of claim 9, wherein said graph rendering tool operates independent of said user interface and produce said graphical view in response to said state changes, and wherein said network management system stores said graphical view until requested.
13. A method for providing a graphical view of a network layout, comprising:
receiving operational data from a wireless network that comprises a collector and a plurality of meters that communicate wirelessly with the collector, each of the meters having a wireless communication path to the collector that is either a direct path or an indirect path through one or more intermediate meters that serve as repeaters, the wireless communication paths between each meter and the collector defining a layout of the network;
maintaining a database of states of the collector and the meters in accordance with said operational data; and rendering a graphical view of said network layout in accordance with said states of the collector and the meters.
receiving operational data from a wireless network that comprises a collector and a plurality of meters that communicate wirelessly with the collector, each of the meters having a wireless communication path to the collector that is either a direct path or an indirect path through one or more intermediate meters that serve as repeaters, the wireless communication paths between each meter and the collector defining a layout of the network;
maintaining a database of states of the collector and the meters in accordance with said operational data; and rendering a graphical view of said network layout in accordance with said states of the collector and the meters.
14. The method of claim 13, wherein maintaining said database includes maintaining a current network state database and a historical network state database.
15. The method of claim 14, further comprising:
retrieving network state information from said historical network state database;
and producing said graphical view.
retrieving network state information from said historical network state database;
and producing said graphical view.
16. The method of claim 13, further comprising configuring said graphical view via a user interface to visually identify predetermined performance parameters.
17. The method of claim 13, further comprising:
automatically producing said graphical view in response to state changes; and storing said graphical view until requested.
automatically producing said graphical view in response to state changes; and storing said graphical view until requested.
18. The system of claim 5, wherein the predetermined performance parameters include a reading performance between each meter and the collector.
19. The system of claim 11, wherein the predetermined performance parameters include a reading performance between each meter and the collector.
20. The method of claim 16, wherein the predetermined performance parameters include a reading performance between each meter and the collector.
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-
2004
- 2004-06-15 US US10/868,100 patent/US7142106B2/en active Active
-
2005
- 2005-06-13 CA CA2509844A patent/CA2509844C/en not_active Expired - Fee Related
- 2005-06-14 CR CR7874A patent/CR7874A/en not_active Application Discontinuation
- 2005-06-14 MX MXPA05006358A patent/MXPA05006358A/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
CR7874A (en) | 2007-10-12 |
MXPA05006358A (en) | 2005-12-19 |
CA2509844A1 (en) | 2005-12-15 |
US20050278440A1 (en) | 2005-12-15 |
US7142106B2 (en) | 2006-11-28 |
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