Smart Lock Positioning and Tag-Based Indoor Unlocking
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Solution Overview
Problem
Existing smart locks face challenges with GPS-based positioning accuracy in indoor environments and cumbersome Bluetooth operation for unlocking, which are inefficient and inconvenient.
Innovation Solution
A smart system that integrates a UWB positioning module and a smart lock with binding tags such as barcodes or RFID tags, allowing for precise indoor positioning and simplified unlocking without frequent Bluetooth activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If GPS positioning is used for smart lock positioning, then the positioning coverage is wide, but the positioning accuracy deteriorates to 10m-100m which cannot meet indoor positioning requirements
Solution Approach 1:
The patent divides the positioning system into multiple components: UWB base stations for wide coverage and Wi-Fi access points for fine-grained indoor positioning. This segmentation allows each subsystem to optimize for its specific function while working together to provide both wide coverage and high accuracy.
Solution Approach 2:
The patent merges GPS positioning with indoor positioning technologies (UWB and Wi-Fi) into a unified positioning system. The system automatically switches between GPS for outdoor positioning and indoor positioning methods when entering buildings, combining the advantages of both approaches to maintain continuous high-accuracy positioning.
2Ease of operation
If Bluetooth technology is used for smart lock unlocking, then the wireless communication is achieved, but the operation becomes cumbersome requiring Bluetooth activation and target lock selection
Solution Approach 1:
The patent implements self-service functionality where the mobile terminal automatically identifies and connects to the target smart lock without user intervention. The system automatically obtains the lock's identifier through positioning data, retrieves the unlocking code, and sends the unlock command, eliminating the need for manual Bluetooth pairing and target selection.
Solution Approach 2:
The system performs preliminary actions by pre-obtaining the smart lock's identifier and unlocking code before the actual unlocking operation. The mobile terminal stores these credentials in advance, so when unlocking is needed, the system can immediately execute the operation without requiring the user to go through setup or selection procedures.
3Reliability
If frequent Bluetooth activation is required for smart lock operation, then the communication reliability is maintained, but the power consumption increases
Solution Approach 1:
The patent implements periodic action by using UWB positioning at low power to periodically determine location, and only activating Bluetooth communication when the positioning system detects that the user is in proximity to the smart lock. This reduces Bluetooth activation frequency while maintaining communication reliability when needed.
Solution Approach 2:
The patent introduces UWB positioning as an intermediary mechanism that mediates between the user and the smart lock. Instead of directly using Bluetooth for all interactions, the system first uses UWB to determine proximity, then selectively activates Bluetooth only when positioning indicates the user is near the lock, reducing overall power consumption.
Data Source
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AI summary
The present disclosure provides a smart lock, including: a lock body and an unlocking structure; a Bluetooth communication module configured to receive a lock instruction or an unlock instruction based on Bluetooth communication; and one or more binding tags, each binding tag being associated with a Bluetooth address of the smart lock, wherein the unlocking structure is configured to lock or unlock the smart lock based on the lock instruction or the unlock instruction, or lock or unlock the smart lock based on an operation performed for the one or more binding tags. The present disclosure further provides a system and method for monitoring an object equipped with the smart lock.