Locking Assembly with Angle Sensor for Trailer Security
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Solution Overview
Problem
Current locking systems for lorry trailers are inadequate as they cannot securely prevent unauthorized access without damaging the locking device, lack comprehensive monitoring, and fail to document attempts to open the trailer, making them vulnerable to theft and resulting in uninsured losses.
Innovation Solution
A locking assembly that combines an angle sensor with a distance sensor and an anti-rotation device, which detects the rotational position of a rod member and the door's distance to the frame, ensuring secure closure and preventing unauthorized access, while also providing a code-based unlocking mechanism and optional sensors for additional security features like temperature and CO2 detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a padlock is used to secure the trailer, then the trailer can be locked, but it cannot be opened by authorities without damaging the locking device
Solution Approach 1:
The locking system is divided into multiple independent components: a locking device with a locking member, a separate rod member with a blocking member, and an angle sensor. The rod member can rotate independently to engage or disengage the blocking member, allowing emergency opening without damaging the main locking device while maintaining security when locked.
Solution Approach 2:
The rod member acts as an intermediary between the blocking member and the door opening mechanism. When the rod member rotates, it moves the blocking member to allow door opening without requiring damage to the locking device, serving as a mediator that enables emergency access while preserving the integrity of the main locking system.
2Device complexity
If a simple locking mechanism is used, then the device complexity is low, but comprehensive monitoring and documentation of opening attempts cannot be provided
Solution Approach 1:
The locking assembly integrates multiple functions into a single system: the locking device provides security, the angle sensor monitors rod position, the blocking member enables emergency opening, and the system can document opening attempts. This multi-functional design provides comprehensive monitoring without requiring separate complex systems for each function.
3Ease of operation
If the rod member can be rotated freely to open the door, then ease of operation is high, but unauthorized access cannot be prevented
Solution Approach 1:
The blocking member is positioned to prevent rotation of the rod member in the direction that would open the door. This preliminary blocking action prevents unauthorized access by physically stopping the rod from rotating to the open position, while still allowing controlled opening when the blocking member is repositioned by the actuator.
Solution Approach 2:
The rod member transitions from a static locked position (blocked by the blocking member) to a dynamic state where it can rotate when the actuator repositions the blocking member. This dynamic behavior allows the system to switch between preventing access and enabling opening based on operational requirements.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
A locking assembly configured to be mounted on a door mounted in a frame in order to prevent the door from being opened is disclosed. The door comprises a locking arrangement comprising a handle connected to a rotatably mounted rod member. The locking assembly comprises an angle sensor arranged to detect the rotational position or the change in the rotational position of a rod member.