Wireless Transceiver Sleep State Power Control
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Solution Overview
Problem
Long range wireless networks face high power consumption issues due to the need for continuous operation in remote areas, leading to increased installation and maintenance costs, especially when using renewable energy sources, and battery life is a concern with high bandwidth data usage.
Innovation Solution
A low aggregate power consumption wireless communication network is implemented using wireless transceiver subsystems with a listening device and power controller that transition between sleep and awake states based on network access requests, minimizing power usage by activating components only when needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless transceivers operate continuously to maintain high bandwidth connectivity, then network service quality is improved, but power consumption increases
Solution Approach 1:
The transceiver system dynamically adjusts its operational state between active and sleep modes based on real-time network conditions and traffic demands. The listening device continuously monitors for traffic while the transceiver remains in low-power state, and only transitions to full operation when actual communication needs are detected, resolving the contradiction between continuous service quality and power consumption.
Solution Approach 2:
The system implements periodic monitoring cycles where the listening device checks for network traffic at regular intervals while the transceiver remains dormant. This periodic check-in approach ensures the system is ready to provide service when needed while spending most time in low-power state, balancing service quality with power conservation.
2Reliability
If solar power generators are sized to meet peak power requirements, then energy sufficiency is improved, but installation cost and area increase
Solution Approach 1:
The dynamic power management reduces the average power consumption to such an extent that the solar generator can be sized for average rather than peak requirements. The transceiver spends most time in sleep mode with minimal power consumption, only activating fully when traffic is present, allowing downsizing of the solar array and battery system while maintaining energy sufficiency.
Solution Approach 2:
Instead of providing full power capacity continuously, the system uses partial power (sleep mode) for most of the time and excessive power (full active mode) only when absolutely necessary for communication. This partial action approach allows the power generation system to be sized for partial average requirements rather than full peak requirements.
3Productivity
If transceivers remain in awake state for high bandwidth data usage, then data transmission capability is improved, but battery life decreases
Solution Approach 1:
The system dynamically switches between sleep and active states based on data transmission demands. The listening device maintains a minimal operational state to detect traffic, while the full transceiver functionality remains dormant until needed. When high bandwidth transmission is required, the transceiver activates fully, but returns to sleep state immediately after, maximizing battery life while maintaining data transmission capability when needed.
Data Source
AI summary
A low aggregate power consumption wireless communication network comprising: a plurality of wireless transceiver subsystems systems configured for distributed installation within a physical region, each transceiver subsystem comprising: a listening device configured to receive radio frequency transmissions; a wireless transceiver; and a power controller operatively connected to the listening device and the wireless transceiver, the power controller being configured to cause the wireless transceiver to assume a low power sleep state and transition to an awake state in response to a trigger from the listening device, the listening device being configured to monitor received transmissions for a network access request signal, indicative of a need for utilisation of the wireless transceiver, and in response to receiving the network access request signal, trigger the power controller to cause transition of the transceiver from a sleep state to an awake state, whereby network communication functionality is enabled for the subsystem.