Parcel Box Door Lock Deactivation to Prevent Unintentional Trapping
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Solution Overview
Problem
Parcel boxes installed outdoors are at risk of unintentional locking, posing a risk to children or others who may accidentally lock themselves in, as they are not constantly supervised and lack a mechanism to prevent automatic locking when unattended.
Innovation Solution
A method that uses an access control device to detect user activity, measure time since the last event, and deactivate the locking mechanism if the door remains open beyond a predetermined threshold, ensuring the door cannot be locked again, thereby preventing unintentional locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the latch is configured to automatically lock the door when closing, then the security and reliability of the parcel box is improved, but the risk of unintentional locking trapping children or unattended persons increases
Solution Approach 1:
The system performs preliminary actions by detecting door opening events and starting a timer before the locking mechanism is engaged. If the door remains open beyond a predetermined threshold period, the system proactively disables the automatic locking function, preventing the harmful effect of unintentional trapping before it can occur.
Solution Approach 2:
The access control device continuously monitors door status through sensors and provides feedback by tracking the duration of door openings. This feedback mechanism enables the system to distinguish between normal temporary openings and situations where the door has been left open too long, dynamically adjusting the locking behavior accordingly.
2Reliability
If the access control device continuously monitors door status and disables locking after a time threshold, then safety is improved, but the device complexity and energy consumption increase
Solution Approach 1:
The system establishes a predetermined time threshold in advance and uses a simple timer mechanism to track door opening duration. This preliminary setup avoids the need for complex real-time analysis algorithms, maintaining relatively simple device architecture while still achieving safety improvements.
Solution Approach 2:
The system changes the operational parameter of the locking mechanism from always-active to conditionally-active based on the time parameter. By monitoring whether the door has been open longer than the predetermined threshold, the system dynamically adjusts the locking state, adding safety functionality with minimal complexity increase.
3Object-affected harmful factors
If the locking mechanism is deactivated after a time threshold, then the risk of trapping is reduced, but the security against intentional misuse may be weakened
Solution Approach 1:
The system applies different locking behaviors to different temporal contexts: during normal operation within the time threshold, full automatic locking is active for security; when the threshold is exceeded, the locking function is selectively disabled only for that specific door instance, maintaining security elsewhere while preventing trapping.
Solution Approach 2:
The locking mechanism transitions from a static always-on state to a dynamic state that adapts based on door usage patterns. The system dynamically adjusts the locking behavior based on real-time monitoring of door opening duration, enabling it to respond appropriately to different situations while maintaining overall security.
Data Source
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AI summary
The invention relates to a method for deactivating the locking of at least one door (6, 7) of an accommodating device (1), said method comprising: effecting (1101, 1203) the unlocking of the at least one door (6, 7), measuring (1102) the time since at least one event detected by an access-monitoring device (30) of the accommodating device has occurred, and effecting (1103, 1209), if the at least one door (6, 7) is open and the measured time exceeds a specified time threshold value, the deactivation of the locking of the at least one door (6, 7) in such a way that the at least one door (6, 7) cannot be locked. The invention further relates to an access-monitoring device, a computer program, an accommodating device, a system, and a use of the accommodating device.