Network event detection
First Claim
1. A method performed by data processing apparatus, the method comprising:
- for each of a plurality of communications channels of a power line communications system implemented in a power-line distribution system;
monitoring, by logic circuitry, signal characteristic values for a set of signals transmitted over one of the communications channels over a segment of time and determining, based on the monitored signal characteristic values, whether a signal level value for the set of signals is below a threshold level corresponding to a threshold signal level value for the communications channel and whether a noise parameter for the set of signals is less than another threshold level corresponding to a measure of data validity;
in response to the step of determining, storing, by the data processing apparatus, data received over said one of the communications channels as valid data, and providing an update that a circuit in the power-line distribution system has changed; and
in response to the step of determining;
determining that a capacitor bank has been activated in the power-line distribution system, andproviding a notification that the capacitor bank has been activated in the power-line distribution system.
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Accused Products
Abstract
Various aspects of the disclosure are directed to methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for identifying network events. In one aspect, a method includes monitoring signal characteristic values for signals transmitted over a communications channel of a power line communications system and determining that a signal level value for the channel is less than a threshold signal level value for the channel. In response to determining that the signal level value for the channel is less than the threshold signal level value for the channel, a signal to noise ratio for the communications channel is computer and it is determined that the signal to noise ratio for the channel exceeds a threshold value. In response to determining that the signal to noise ratio for the communications channel exceeds the threshold value, storing data received over the communications channel is stored as valid data.
42 Citations
18 Claims
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1. A method performed by data processing apparatus, the method comprising:
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for each of a plurality of communications channels of a power line communications system implemented in a power-line distribution system; monitoring, by logic circuitry, signal characteristic values for a set of signals transmitted over one of the communications channels over a segment of time and determining, based on the monitored signal characteristic values, whether a signal level value for the set of signals is below a threshold level corresponding to a threshold signal level value for the communications channel and whether a noise parameter for the set of signals is less than another threshold level corresponding to a measure of data validity; in response to the step of determining, storing, by the data processing apparatus, data received over said one of the communications channels as valid data, and providing an update that a circuit in the power-line distribution system has changed; and in response to the step of determining; determining that a capacitor bank has been activated in the power-line distribution system, and providing a notification that the capacitor bank has been activated in the power-line distribution system. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A non-transitory tangible computer storage medium encoded with a computer program, the program comprising instructions that when executed by a data processing apparatus causes the data processing apparatus to perform operations comprising:
for each of a plurality of communications channels of a power line communications system implemented in a power-line distribution system; monitoring, by the data processing apparatus, signal characteristic values for a set of signals transmitted over a communications channel over a segment of time; determining, by the data processing apparatus and based on the monitored signal characteristic values, that a signal level value for the set of signals is less than a threshold signal level value for the communications channel; in response to determining that the signal level value for the set of signals transmitted over the communications channel is less than the threshold signal level value for the communications channel; computing, by the data processing apparatus, a signal to noise ratio for the set of signals transmitted over the communications channel; determining, by the data processing apparatus, whether the signal to noise ratio for the set of signals transmitted over the communications channel is less than a threshold value corresponding to a measure of data validity; in response to determining that the signal to noise ratio for the set of signals transmitted over the communications channel is less than the threshold value corresponding to the measure of data validity, preventing, by the data processing apparatus, storage of data received over the communications channel as valid data; and in response to determining that the signal to noise ratio for the set of signals transmitted over the communications channel is not less than the threshold value corresponding to the measure of data validity, storing, by the data processing apparatus, data received over the communications channel as valid data.
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9. A system, comprising:
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a data store storing channel characteristics for a plurality of communications channels of a power line communications system, the channel characteristics including signal level measurements and noise floor measurements for the plurality of communications channels over one or more specified time periods; and a status subsystem coupled to the data store, the status subsystem including one or more processors configured and arranged to determine whether to store data received over each channel of the plurality of communications channels of the power line communications system, the determination for each channel being based on; a comparison of a signal level value for a set of signals, the set of signals received over the channel over a segment of time within the one or more specified time periods, to a threshold level corresponding to a threshold signal level value for the channel; and in response to the signal level value for the set of signals being less than the threshold level corresponding to the threshold signal level value for the channel, a comparison of a signal to noise ratio for the set of signals, received over the channel over the segment of time, to another threshold level corresponding to a measure of data validity, wherein the status subsystem is configured and arranged to monitor a signal level value for each channel and determine that the monitored signal level value for the channel is less than the threshold signal level value for the channel and to determine that the signal to noise ratio for the channel is less than a threshold signal to noise ratio and prevent data received over the channel from being stored as valid data. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A system, comprising:
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a data store storing channel characteristics for a plurality of communications channels of a power line communications system, the channel characteristics including signal level measurements and noise floor measurements for the plurality of communications channels over one or more specified time periods; and a status subsystem coupled to the data store, the status subsystem including one or more processors configured and arranged to determine whether to store data received over each channel of the plurality of communications channels of the power line communications system, the determination for each channel being based on; a comparison of a signal level value for a set of signals, the set of signals received over the channel over a segment of time within the one or more specified time periods, to a threshold level corresponding to a threshold signal level value for the channel; and in response to the signal level value for the set of signals being less than the threshold level corresponding to the threshold signal level value for the channel, a comparison of a signal to noise ratio for the set of signals, received over the channel over the segment of time, to another threshold level corresponding to a measure of data validity, wherein the status subsystem is configured and arranged to compute a baseline signal level for each channel and specify the threshold signal level value for each channel based on the baseline signal level for the channel, to monitor the signal level value for each channel and determine that the monitored signal level value for the channel is less than the threshold signal level value for the channel, to determine that the signal to noise ratio for the channel is greater than a threshold signal to noise ratio and cause data received over the channel to be stored as valid data and to generate a notification that a capacitor bank has been activated in response to a determination that the signal level for the channel is below the threshold signal level for the channel and the determination that the signal to noise ratio for the channel is greater than the threshold signal to noise ratio for the channel. - View Dependent Claims (16)
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17. A method performed by a data processing apparatus, the method comprising:
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for each of a plurality of communications channels of a power line communications system implemented in a power-line distribution system; monitoring, by logic circuitry, signal characteristic values for a set of signals transmitted over one of the communications channels over a segment of time and determining, based on the monitored signal characteristic values, whether a signal level value for the set of signals is below a threshold level corresponding to a threshold signal level value for the channel and whether a noise parameter for the set of signals is less than another threshold level corresponding to a measure of data validity; in response to the step of determining, storing, by the data processing apparatus, data received over said one of the communications channels as valid data, and providing an update that a circuit in the power-line distribution system has changed; determining a status of said one of the communication channels, wherein the status of the communication channel includes; a permanent status in response to at least one of; determining the signal level value for the set of signals is not less than the threshold level corresponding to the threshold signal level value for the channel; and determining the signal level value for the set of signals is less than the threshold level corresponding to the threshold signal level value for the channel and the noise parameter for the set of signals is not less than the other threshold level corresponding to the measure of data validity; and a lost status in response to determining the signal level value for the set of signals is less than the threshold level corresponding to the threshold signal level value for the channel and the noise parameter for the set of signals is less than the other threshold level corresponding to the measure of data validity. - View Dependent Claims (18)
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Specification