Techniques for controlling delivery of power to a remotely powerable device based on temperature
First Claim
1. In power-sourcing equipment, a method for controlling delivery of power to a remotely powerable device through a communications pathway connecting the power-sourcing equipment to the remotely powerable device, the method comprising:
- obtaining an initial resistance value representing an initial resistance of the communications pathway;
after obtaining the initial resistance value, obtaining an operating resistance value representing an operating resistance of the communications pathway;
generating a temperature change result based on the initial resistance value and the operating resistance value; and
selectively one of enabling and disabling delivery of power to the remotely powerable device through the communications pathway based on the temperature change result.
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Accused Products
Abstract
An improved method is performed within power-sourcing equipment. The method controls delivery of power to a remotely powerable device through a communications pathway that connects the power-sourcing equipment to the remotely powerable device. The method involves obtaining an initial resistance value representing an initial resistance of the communications pathway, and obtaining an operating resistance value representing an operating resistance of the communications pathway after obtaining the initial resistance value. The method further involves generating a temperature change result based on the initial resistance value and the operating resistance value, and selectively one of enabling, scaling back and disabling delivery of power to the remotely powerable device through the communications pathway based on the temperature change result.
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Citations
33 Claims
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1. In power-sourcing equipment, a method for controlling delivery of power to a remotely powerable device through a communications pathway connecting the power-sourcing equipment to the remotely powerable device, the method comprising:
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obtaining an initial resistance value representing an initial resistance of the communications pathway; after obtaining the initial resistance value, obtaining an operating resistance value representing an operating resistance of the communications pathway; generating a temperature change result based on the initial resistance value and the operating resistance value; and selectively one of enabling and disabling delivery of power to the remotely powerable device through the communications pathway based on the temperature change result. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 32, 33)
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15. Power-sourcing equipment, comprising:
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a power source; an interface configured to connect to a communications pathway leading to a remotely powerable device; and a controller interconnected between the power source and the interface, the controller being configured to; obtain an initial resistance value representing an initial resistance of the communications pathway; after obtaining the initial resistance value, obtain an operating resistance value representing an operating resistance of the communications pathway; generate a temperature change result based on the initial resistance value and the operating resistance value; and selectively one of enable and disable delivery of power to the remotely powerable device through the communications pathway based on the temperature change result. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. In power-sourcing equipment, a method for controlling delivery of power to a remotely powerable device through a communications pathway connecting the power-sourcing equipment to the remotely powerable device, the method comprising:
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obtaining an initial resistance value representing an initial resistance of the communications pathway; after obtaining the initial resistance value, obtaining an operating resistance value representing an operating resistance of the communications pathway; generating a temperature change result based on the initial resistance value and the operating resistance value; generating a measure of power dissipated in the communications pathway; selectively one of enabling, scaling back, and disabling delivery of power to the remotely powerable device through the communications pathway based on the temperature change result; and storing power-related data including the measure of power dissipated in the communications pathway as a history log in memory.
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30. Power-sourcing equipment, comprising:
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a power source; an interface configured to connect to a communications pathway leading to a remotely powerable device; and a controller interconnected between the power source and the interface, the controller being configured to control delivery of power to the remotely powerable device through the communications pathway, the controller including; means for obtaining an initial resistance value representing an initial resistance of the communications pathway; means for obtaining an operating resistance value representing an operating resistance of the communications pathway after obtaining the initial resistance value; means for generating a temperature change result based on the initial resistance value and the operating resistance value; and means for selectively one of enabling and disabling delivery of power to the remotely powerable device through the communications pathway based on the temperature change result.
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31. A smart remotely powerable device, comprising:
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a monitoring circuit configured to measure electrical parameters of copper wire in a cable used in determining a temperature change in the cable leading from a power source to the smart remotely powerable device; a communications circuit configured to communicate with the power source; and a controller configured to perform a series of operations, the controller being further configured to scale back power consumption while performing the series of operations in response to receipt of a power reduction command sent from the power source to the controller through the communications circuit when the power source detects a particular temperature change.
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Specification