Smart Lock Cable Integrity Monitoring via Distributed Sensors
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Solution Overview
Problem
Existing portable locking devices, such as padlocks, lack advanced sensors for monitoring cable conditions and are limited in their ability to transmit signals in remote areas, typically reporting only binary lock status without the capacity for remote communication.
Innovation Solution
A smart lock assembly with a cable assembly featuring sensors along its length, a wireless transceiver connected to a microcontroller, and a secure mesh communication network allowing remote lock assemblies to communicate with mobile devices and servers, enabling real-time monitoring and control of cable type, length, and integrity, as well as secure signal transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If portable locking devices use only rudimentary sensors and binary status reporting, then device complexity is reduced, but measurement precision and information quality deteriorate
Solution Approach 1:
The cable is divided into multiple segments with sensor elements distributed along its length. Each sensor segment monitors local cable conditions independently, enabling precise detection of cable integrity, type, and length without requiring a single complex sensor system.
Solution Approach 2:
The sensor elements are designed to perform multiple functions: detecting cable integrity (breaks, cuts), identifying cable type, and measuring cable length. This multi-functionality reduces the need for separate specialized sensors, thereby reducing overall device complexity while maintaining high measurement precision.
2Adaptability or versatility
If padlocks use permanently connected shackles or single-type shackle elements, then device complexity is reduced, but adaptability deteriorates
Solution Approach 1:
The locking mechanism is designed with pinways and locking components that can accommodate different shackle types (U-shaped shackles, cable assemblies with pins). The mechanism universally accepts various shackle configurations without requiring different locking mechanisms, thereby enhancing adaptability while controlling complexity.
Solution Approach 2:
The locking mechanism transitions from static, fixed-shackle designs to dynamic, adaptable configurations. The pinways allow shackles to be inserted and secured in different orientations and types, enabling the lock to dynamically adjust to various shackle configurations.
3Loss of information
If wireless transceivers operate only with simple binary messages, then energy consumption is reduced, but loss of information increases
Solution Approach 1:
The transceiver operates in periodic cycles, transmitting sensor data at intervals rather than continuously. This periodic transmission reduces energy consumption while still providing comprehensive condition data over time, balancing information completeness with energy efficiency.
Solution Approach 2:
The system implements feedback mechanisms where the transceiver receives commands from remote devices and sends status updates based on sensor readings. This feedback loop ensures complete condition data transmission only when necessary, reducing unnecessary energy consumption while maintaining information completeness.
4Reliability
If lock assemblies lack mesh communication capability, then device complexity is reduced, but reliability in remote areas deteriorates
Solution Approach 1:
Multiple lock assemblies are merged into a mesh communication network where each unit acts as both a sender and receiver. This distributed network structure enhances reliability in remote areas by providing multiple communication paths, while the modular mesh architecture keeps individual device complexity manageable.
Solution Approach 2:
The mesh network is pre-configured with routing protocols and communication protocols that enable automatic signal relay and message forwarding. This preliminary setup ensures reliable communication in remote areas without requiring complex real-time decision-making at each device, thereby controlling operational complexity.
Data Source
AI summary
Disclosed herein are lock assemblies that include, in particular embodiments, a cable assembly, a housing, a sensor assembly, and a wireless transceiver. The cable assembly includes a cable having a sensor element disposed along its length, a first shackle pin on its first end, and a second shackle pin on its opposing end. The housing defines a first pinway for receiving the first shackle pin, a second pinway for receiving the second shackle pin, and a locking mechanism for securing the shackle pins to the housing. The sensor assembly is located within the housing and in communication with the cable assembly for sensing a cable type and a cable condition related to the cable assembly. The wireless transceiver is connected to a power source, in communication with the sensor assembly, and operated by a microcontroller within the housing.