ATM Module Power Control for Energy Savings
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Solution Overview
Problem
Conventional ATMs waste significant power as they remain in a power-on state even when not in use, with existing power-saving modes only achieving a 10% reduction in power consumption by controlling the monitor.
Innovation Solution
A financial device that powers off modules and screens when not in use and enters a transaction standby mode upon user access, using a main control unit to disconnect power from modules and store operation information for efficient reactivation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the ATM remains in power-on state to provide immediate service, then service responsiveness is improved, but power consumption increases
Solution Approach 1:
The ATM dynamically adjusts its operational state based on user presence detection. When no user is detected, the system transitions to power-saving mode with reduced power consumption. When a user approaches, the system automatically wakes up and returns to full operational state, achieving both energy efficiency and rapid service responsiveness without requiring the system to remain continuously powered on.
Solution Approach 2:
The system implements periodic power state transitions between active and power-saving modes based on user interaction patterns. The ATM monitors user presence continuously and switches states periodically, maintaining service availability while reducing average power consumption over time through these rhythmic transitions between operational states.
2Use of energy by moving object
If the ATM enters power-saving mode to reduce power consumption, then energy efficiency is improved, but service activation time increases
Solution Approach 1:
The system performs preliminary actions by maintaining a standby state with critical components partially powered during power-saving mode. The monitor and essential control circuits remain in a low-power ready state, allowing the system to quickly transition to full operational mode when a user approaches, thereby minimizing activation time while still achieving significant power savings compared to full continuous operation.
Solution Approach 2:
The ATM implements dynamic power management that adjusts power distribution to different components based on operational needs. Critical components maintain readiness at lower power levels, while non-essential components are fully powered down. This dynamic allocation allows rapid service activation without requiring complete system reinitialization, reducing activation time while maximizing energy efficiency.
3Ease of operation
If only the monitor is controlled in power-saving mode, then ease of operation is improved, but power saving effect is limited
Solution Approach 1:
The power management system is segmented into multiple controllable modules including the monitor, card reader, cash dispenser, and control circuits. Each module can be independently powered down or placed in standby mode based on operational requirements. This segmentation allows the system to achieve comprehensive power savings by controlling multiple components rather than just the monitor, while maintaining ease of operation through centralized control logic.
Solution Approach 2:
The power-saving control mechanism serves multiple functions simultaneously: it controls the monitor, manages power to financial transaction modules, maintains state information in storage units, and coordinates wake-up sequences. This universal power management approach maximizes the power saving effect across the entire system while maintaining operational simplicity through a unified control strategy.
Data Source
AI summary
A financial device may include: one or more modules each including a storage unit; and a main control unit configured to disconnect power to the one or more modules after operation information is stored in the storage unit, when entering a power saving mode. The storage unit may store the operation information of the corresponding module of the one or more modules, when entering the power saving mode.