CPE Power Control Mechanism for Battery Conservation
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Solution Overview
Problem
Customer premises equipment (CPE) in cable networks experiences power depletion during extended outages, rendering it inoperable even after connectivity is restored, due to the limited capacity of battery backups.
Innovation Solution
A mechanism is implemented to detect connectivity loss between CPE and the headend, enabling the reduction of power consumption by disabling non-essential modules, thereby conserving auxiliary power and extending battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If battery backup is provided to ensure service continuity during power failure, then reliability of critical services is improved, but the battery is depleted during extended outages before connectivity is restored
Solution Approach 1:
The CPE dynamically adjusts its operational state based on connectivity status. When connectivity is lost, the system transitions from a high-power state where all functional modules operate to a low-power state where non-essential modules are disabled, while maintaining essential services. This dynamic adaptation allows the battery to last through extended outages while ensuring service continuity when possible.
Solution Approach 2:
The system changes the power consumption parameter of functional modules based on connectivity conditions. By detecting loss of connectivity, the CPE modifies operational parameters by disabling non-essential modules, thereby reducing overall power consumption from the battery while maintaining critical services during the outage period.
2Adaptability or versatility
If all functional modules in CPE remain operational during power outage, then service functionality is maintained, but battery power is depleted quickly
Solution Approach 1:
The CPE's functional modules are segmented into essential and non-essential categories. During power outages with lost connectivity, the system selectively disables non-essential modules while maintaining essential services. This segmentation allows the battery to power critical functions for extended periods without completely sacrificing service functionality.
Solution Approach 2:
Instead of maintaining full operational capacity of all modules during an outage, the system applies partial action by keeping only the minimum necessary functions active. This partial operation extends battery life significantly while still providing essential services, accepting that some non-critical functionality is temporarily reduced.
3Use of energy by moving object
If connectivity status is continuously monitored to enable power reduction, then power consumption is optimized, but device complexity increases
Solution Approach 1:
The CPE employs a feedback mechanism where the system continuously monitors connectivity status and uses this information to control power consumption. The connectivity detector provides feedback to the power control module, which automatically adjusts the operational state of functional modules. This closed-loop feedback system optimizes power usage without requiring complex manual intervention or sophisticated control algorithms.
Data Source
AI summary
A power control apparatus for controlling power consumption in customer premises equipment (CPE) for use in a content and data distribution network includes a detector, operative to determine an operational status of a connection between the CPE and a headend in the content and data distribution network, and a controller coupled with the detector. The controller is operative to place the CPE in a first mode of operation when a power failure event is not present and the operational status is indicative of a loss of connectivity between the CPE and the headend. The apparatus further includes switching circuitry coupled with the controller. The switching circuitry is operative in the first mode to disable power to a first subset of functional modules in the CPE, to thereby reduce power consumption in the CPE.