ATM Bill Deposit Camera Control for Hand Safety
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Solution Overview
Problem
Conventional automated teller machine (ATM) deposit/withdrawal apparatuses with shutter-based systems face issues of user hand injury and frequent malfunction due to improper shutter control, and the use of optical sensors in tray-moving systems complicates the structure and increases costs.
Innovation Solution
A deposit/withdrawal apparatus with a camera mounted beside the bill insertion slot to photograph the insertion situation, controlling the tray, clamp, and shutter operations based on the image analysis to prevent accidents and ensure proper alignment of bills, thereby simplifying the structure and enhancing user safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an optical sensor is used to detect user hand entry for shutter control, then the shutter opening/closing operation can be controlled, but the structure becomes complicated and installation cost increases
Solution Approach 1:
The patent replaces the optical sensor-based detection system with a camera-based image processing system. Instead of using light emitting/receiving units to detect hand presence, the system uses a camera to capture images and processes these images to determine whether the user's hand has entered the deposit/withdrawal portion. This substitution simplifies the overall structure while maintaining reliable detection capability.
Solution Approach 2:
The patent uses image copying by capturing visual information through a camera and processing the captured image data to infer hand presence. Rather than directly detecting physical properties with sensors, the system creates an optical copy (image) of the scene and analyzes it to make control decisions, thereby simplifying the hardware requirements.
2Device complexity
If the shutter is controlled without accurate hand detection, then the structure remains simple, but user hand injury and motor malfunction occur
Solution Approach 1:
The patent implements a feedback mechanism where the camera continuously monitors the deposit/withdrawal portion, and the control unit adjusts shutter operation based on real-time image analysis. When the system detects that the user's hand has not yet exited the deposit/withdrawal portion, it prevents the shutter from closing, thereby avoiding hand injury while maintaining structural simplicity.
Solution Approach 2:
The system performs preliminary detection of hand presence before executing the shutter closing action. By analyzing images captured during the tray's movement and before the shutter closes, the system proactively identifies potential safety risks and prevents harmful actions from occurring in the first place.
3Ease of operation
If the tray moves forward and backward to receive/discharge bills, then deposit/withdrawal convenience is improved, but accurate hand location detection becomes more difficult
Solution Approach 1:
The patent addresses the detection difficulty by capturing images from multiple angles or at multiple time points during the tray's movement. The control unit analyzes the sequence of images to track hand position relative to the moving tray, effectively adding a temporal dimension to the detection process and solving the problem of detecting hand location during dynamic tray movement.
Data Source
AI summary
The present disclosure relates to a deposit/withdrawal apparatus of an automated teller machine (ATM) and a control method thereof, and more particularly, relates to a deposit/withdrawal apparatus of ATM which is a deposit/withdrawal apparatus of a present type ATM which receives or discharges a bill by moving a tray for loading a bill forwards and backwards during a deposit/withdrawal transaction, and a control method thereof, in which the deposit/withdrawal apparatus is configured to include a tray for loading a bill, a clamp for fixing a bill, a shutter for opening or closing an entrance of a bill, and a camera mounted at one side of the bill insertion slot through which the tray enters, to grasp an insertion situation of a bill from an image photographed by the camera, and to control operations of the tray, the clamp, and the shutter.