Detecting plant degradation using peer-comparison
First Claim
1. A computing device for detecting performance degradation in a hybrid fiber-coaxial (HFC) cable plant having customer premises equipment (CPE) elements, active elements, and passive elements, comprising:
- a memory device resident in the computing device; and
a processor disposed in communication with the memory device, the processor configured to;
collect radio frequency (RF) metric values for the CPE elements, the active elements, and the passive elements;
compute absolute deviation values of the RF metric values for the CPE elements, the active elements, and the passive elements, wherein each absolute deviation value is from a reference value associated with the element;
compute relative hierarchical deviation values of the RF metric values for the CPE elements, the active elements, and the passive elements;
compute relative peer deviation values of the RF metric values for the CPE elements, the active elements, and the passive elements;
compare the absolute deviation value, relative hierarchical deviation value, and relative peer deviation value for each CPE element, each active element, and each passive element to at least one threshold value; and
send an alarm message to an operator when the absolute deviation value, relative hierarchical deviation value, or relative peer deviation value for any CPE element, any active element, or any passive element exceeds said at least one threshold value.
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Abstract
A method implemented in a computer system for detecting performance degradation in a hybrid fiber-coaxial (HFC) cable plant having customer premises equipment (CPE) elements, active elements, and passive elements. The method collects radio frequency (RF) metric values, computes absolute deviation values of the RF metric values from reference RF metric values, computes relative hierarchical deviation values of the RF metric values, and computes relative peer deviation values of the RF metric values. The method sends an alarm message to an operator when the absolute deviation value, relative hierarchical deviation value, or relative peer deviation value for any element exceeds a threshold value.
343 Citations
19 Claims
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1. A computing device for detecting performance degradation in a hybrid fiber-coaxial (HFC) cable plant having customer premises equipment (CPE) elements, active elements, and passive elements, comprising:
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a memory device resident in the computing device; and a processor disposed in communication with the memory device, the processor configured to; collect radio frequency (RF) metric values for the CPE elements, the active elements, and the passive elements; compute absolute deviation values of the RF metric values for the CPE elements, the active elements, and the passive elements, wherein each absolute deviation value is from a reference value associated with the element; compute relative hierarchical deviation values of the RF metric values for the CPE elements, the active elements, and the passive elements; compute relative peer deviation values of the RF metric values for the CPE elements, the active elements, and the passive elements; compare the absolute deviation value, relative hierarchical deviation value, and relative peer deviation value for each CPE element, each active element, and each passive element to at least one threshold value; and send an alarm message to an operator when the absolute deviation value, relative hierarchical deviation value, or relative peer deviation value for any CPE element, any active element, or any passive element exceeds said at least one threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method implemented in a computer system for detecting performance degradation in a hybrid fiber-coaxial (HFC) cable plant having customer premises equipment (CPE) elements, active elements, and passive elements, comprising:
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collecting radio frequency (RF) metric values for the CPE elements, the active elements, and the passive elements; computing absolute deviation values of the RF metric values for the CPE elements, the active elements, and the passive elements, wherein each absolute deviation value is from a reference value associated with the element; computing relative hierarchical deviation values of the RF metric values for the CPE elements, the active elements, and the passive elements; computing relative peer deviation values of the RF metric values for the CPE elements, the active elements, and the passive elements; comparing the absolute deviation value, relative hierarchical deviation value, and relative peer deviation value for each CPE element, each active element, and each passive element to at least one threshold value; and sending an alarm message to an operator when the absolute deviation value, relative hierarchical deviation value, or relative peer deviation value for any CPE element, any active element, or any passive element exceeds said at least one threshold value. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A non-transitory computer-readable medium, comprising computer-executable instructions that, when executed on a computing device for detecting performance degradation in a hybrid fiber-coaxial (HFC) cable plant having customer premises equipment (CPE) elements, active elements, and passive elements, perform steps of:
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collecting radio frequency (RF) metric values for the CPE elements, the active elements, and the passive elements; computing absolute deviation values of the RF metric values for the CPE elements, the active elements, and the passive elements, wherein each absolute deviation value is from a reference value associated with the element; computing relative hierarchical deviation values of the RF metric values for the CPE elements, the active elements, and the passive elements; computing relative peer deviation values of the RF metric values for the CPE elements, the active elements, and the passive elements; comparing the absolute deviation value, relative hierarchical deviation value, and relative peer deviation value for each CPE element, each active element, and each passive element to at least one threshold value; and sending an alarm message to an operator when the absolute deviation value, relative hierarchical deviation value, or relative peer deviation value for any CPE element, any active element, or any passive element exceeds said at least one threshold value.
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Specification