Money Handling Machine Drawer Locking Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In money handling machines, when an error occurs, such as jamming, a third party can draw the drawer from the housing without permission and take money if the authorized operator departs, leading to potential errors in calculation and security issues.
Innovation Solution
A money handling machine equipped with a locking mechanism and an identification information acquisition unit that only allows the drawer to be drawn from the housing after verifying the identification information of an authorized operator, ensuring that only authorized personnel can resolve errors and access the money handling unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the drawer is allowed to be drawn from the housing when an error occurs, then the operator can resolve the error by removing jammed money, but a third party may draw the drawer without permission and take away money
Solution Approach 1:
The system performs preliminary identification verification before allowing drawer extraction. The identification information acquisition unit acquires and verifies operator identification information before the locking mechanism releases the drawer, ensuring authorization is established in advance rather than at the moment of access.
Solution Approach 2:
The locking mechanism serves as an intermediary between the drawer and the housing, controlled by the controller based on verification results. This intermediary component enforces the authorization decision, physically preventing unauthorized drawer extraction while allowing authorized operations to proceed.
2Reliability
If the drawer is locked in the housing, then unauthorized access is prevented, but the authorized operator cannot draw the drawer to resolve errors
Solution Approach 1:
The locking mechanism transitions between locked and unlocked states dynamically based on verification results. The system adapts its restrictive behavior according to the operator's authorization status, being restrictive (locked) for unauthorized users and permissive (unlocked) for authorized operators, rather than maintaining a fixed state.
Solution Approach 2:
The system changes the operational parameter of the locking mechanism from locked to unlocked based on the verification outcome. This parameter change is controlled by the controller which receives verification results from the identification information acquisition unit, enabling conditional access control.
3Reliability
If identification verification is implemented, then unauthorized access is prevented, but the system complexity increases
Solution Approach 1:
The locking mechanism serves multiple functions: it provides physical security by preventing unauthorized drawer extraction and simultaneously enforces the identification verification process. This multi-functionality reduces the need for separate dedicated components, thereby limiting the increase in system complexity.
Solution Approach 2:
The identification information acquisition unit and controller work together to automatically verify operator identification and control the locking mechanism without requiring manual intervention. The system performs the verification and access control decision-making process autonomously, reducing operational complexity despite the added verification layer.
Data Source
AI summary
A money handling machine includes: a housing; a drawer that is drawable from the housing; a locking mechanism configured to lock the drawer in the housing; an identification information acquisition unit configured to acquire identification information of an operator; and a controller configured to control the locking mechanism such that, when an error occurs in a handling unit, the drawer can be drawn from the housing subject to the identification information of the operator having been acquired by the identification information acquisition unit.