Beacon Device Sleep State Power Management
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Solution Overview
Problem
Conventional low power wireless communication devices, such as beacon devices, require frequent maintenance due to battery-powered designs, which can be time-consuming and inefficient, especially when considering spacing and density considerations for optimal network access and bandwidth.
Innovation Solution
The implementation of beacon devices with a clock and processor that enter a wake state for operation and communication, receiving configuration parameters from a cloud controller for hibernation and scheduling, and then enter a sleep state to conserve power, using an energy harvester for renewable energy sources, thereby reducing maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If battery-powered beacons are deployed to achieve wireless communication coverage, then network access and bandwidth are improved, but maintenance time and operational costs increase due to frequent battery replacement and manual programming
Solution Approach 1:
The beacon device performs self-configuration by automatically obtaining network parameters and identification information through wireless communication with a controller device, eliminating the need for manual programming. The device also autonomously manages its power source by harvesting energy from environmental sources, removing the need for battery replacement maintenance.
Solution Approach 2:
A controller device acts as an intermediary between the network infrastructure and the beacon device, wirelessly transmitting configuration parameters and managing the beacon's operation. This intermediary enables remote management and configuration, significantly reducing maintenance time and operational intervention.
2Speed
If battery-powered beacons are deployed to achieve wireless communication coverage, then network access and bandwidth are improved, but operational costs and device complexity increase due to power management requirements
Solution Approach 1:
The beacon device autonomously harvests energy from environmental sources such as light, heat, or vibration through integrated energy harvesting components, converting these environmental energy forms into electrical power. This self-powered operation eliminates complex battery management systems and power switching mechanisms, simplifying the overall device architecture while maintaining continuous operation.
3Speed
If beacons are spaced densely to improve network coverage, then bandwidth and access are improved, but interference from neighboring devices increases
Solution Approach 1:
The beacon device receives and stores configuration parameters including transmission power levels, frequency assignments, and timing synchronization information before beginning operation. The controller device pre-coordinates these parameters for densely spaced beacons to minimize mutual interference, allowing high-density deployment while maintaining network performance.
Data Source
AI summary
According to one embodiment, a beacon device is configured to provide power in the beacon device in response to a signal from a clock to enter a wake state from a sleep state. The beacon device is further configured to receive configuration parameters over the wireless network interfaces from a network device, monitor one or more of a beacon sensor or a user device over the wireless network interfaces according to the configuration parameters, transmit data over the network interfaces to the network device according to the configuration parameters, and monitor the clock for a signal to enter a sleep state. The beacon device is further configured to disrupt the power in the beacon device in response to the signal to enter the sleep state from the clock.