Low-Power Sentry Beacon Signaling for Lighting Control
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Solution Overview
Problem
Current sentry devices with Bluetooth mesh network capabilities suffer from high power consumption due to ineffective energy-saving mechanisms, requiring frequent maintenance, signal reception, and participation in periodic updates, leading to increased battery consumption.
Innovation Solution
The sentry device incorporates a beacon module, detecting module, and processing module to generate and transmit beacon signals with a check value based on a serial number, group identifier, and random code, enabling one-way communication with lighting devices, eliminating the need for signal reception and periodic updates, and entering a sleep state after transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the sentry device uses Bluetooth mesh network for bidirectional communication, then the lighting system can be controlled, but power consumption increases due to signal reception and periodic updates
Solution Approach 1:
The patent extracts the signal reception function and periodic update participation from the sentry device, retaining only the beacon signal transmission capability. This allows the device to control lighting through one-way beacon transmission without the energy burden of bidirectional Bluetooth mesh communication, directly resolving the contradiction between control capability and power consumption.
Solution Approach 2:
Instead of using the conventional bidirectional Bluetooth mesh protocol where the sentry device receives and responds to network signals, the patent inverts the communication model by having the sentry device exclusively transmit customized beacon signals that lighting devices independently process. This inversion eliminates the need for signal reception while maintaining lighting control functionality.
2Reliability
If the sentry device participates in periodic Bluetooth mesh network updates, then network security is maintained, but battery consumption increases
Solution Approach 1:
The patent removes the sentry device from the Bluetooth mesh network's periodic update cycles, extracting this energy-consuming function while maintaining security through alternative means. The device generates secure beacon signals with embedded authentication data without needing to participate in mesh network key updates, thus preserving reliability while reducing battery consumption.
Solution Approach 2:
The sentry device implements self-service security by generating autonomous beacon signals with embedded authentication credentials (group identifiers, sentry identifiers, check values) rather than relying on periodic mesh network security updates. This allows the device to maintain security independently without energy-intensive network participation.
3Use of energy by moving object
If the sentry device uses effective energy-saving mechanisms, then power consumption is reduced, but the device still requires frequent maintenance
Solution Approach 1:
The patent implements continuous useful action by having the sentry device transmit beacon signals periodically without entering sleep modes or shutting down components. The device maintains constant beacon transmission capability with ultra-low power consumption, eliminating the need for frequent maintenance while ensuring continuous operation and lighting control functionality.
Data Source
AI summary
A sentry device includes a beacon module, a detecting module and a processing module. The detecting module performs a detecting operation so as to detect a moving object and generate a detecting signal. The processing module generates a beacon signal upon receiving the detecting signal, and transmits the beacon signal to a lighting device via the beacon module. The processing module generates a check value based on a serial number representing the detecting operation, a group identifier, a sentry identifier and a random code, and further generates the beacon signal including the serial number, the group identifier, the sentry identifier and the check value, whereby the lighting device operates according to the beacon signal.