Bill Processing Device Outlet Port Detection
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Solution Overview
Problem
In conventional bill processing devices, when the main body is removed from its casing for maintenance, the cash balance is determined as unknown even if bills are not taken out, leading to unnecessary inspection operations, especially when the device is part of a configuration with a coin processing device.
Innovation Solution
A bill processing device with outlet port detectors that only determine the cash balance as unknown if at least one outlet port is opened, preventing unnecessary inspection operations by distinguishing between removal of the device from its casing and actual bill extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the device main body is removed from the casing for maintenance, then the coin processing device can be maintained, but the cash balance in the bill processing device is determined as unknown even if bills are not taken out, leading to unnecessary inspection operations
Solution Approach 1:
An outlet port detector is introduced as an intermediary device to detect whether the outlet port is opened. This detector acts as a mediator between the physical state of the outlet port and the controller's determination of cash balance status, providing accurate information to distinguish between actual bill extraction and device removal for maintenance.
Solution Approach 2:
The conventional mechanical assumption that device removal implies bill extraction is replaced with an optical/electrical detection system. The outlet port detector uses a light source and light receiver to detect the opening state of the outlet port, substituting the mechanical inference system with a sensing-based determination system.
2Reliability
If the cash balance is determined as unknown whenever the device main body is removed from the casing, then security is maintained by assuming possible bill extraction, but unnecessary inspection operations are performed when bills were not actually taken out
Solution Approach 1:
The outlet port detector provides real-time feedback to the controller about the opening state of the outlet port. This feedback mechanism allows the controller to make accurate cash balance determinations based on actual outlet port status, enabling the system to distinguish between genuine bill extraction events and device removal for maintenance, thereby improving both reliability and productivity.
3Loss of time
If outlet port detectors are added to detect whether outlet ports are opened, then unnecessary inspection operations are prevented, but the device complexity increases
Solution Approach 1:
The detection function is segmented and assigned to specific outlet ports rather than requiring a comprehensive system-wide detection mechanism. Each outlet port can be monitored independently by its own detector, allowing the system to scale detection coverage according to actual needs and reducing overall system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces the frequency of unnecessary inspection operations and improves security by ensuring the dispensing and collecting box can be safely stored outside the device main body, maintaining the cash balance determination accuracy.
Implementation Method 1
outlet port detectors where each is configured to detect the outlet port being opened by the outlet door
Data Source
AI summary
A bill processing device includes: a device main body including a depositing portion; a plurality of storage boxes where each has an outlet port; a dispensing box including a bill output port; an outlet door configured to open and close the outlet port of each of the storage boxes; a plurality of outlet port detectors where each is configured to detect the outlet port being opened by the outlet door; and a controller configured to determine that cash balance is unknown only when at least one of the outlet port detectors detects that the outlet port is opened.