Shopping Cart Scanner Power Control Based on Movement Speed
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Solution Overview
Problem
Cart-type commodity registration apparatuses face issues with user operability and convenience due to power saving functions that can prevent immediate use of necessary equipment, leading to battery exhaustion during shopping.
Innovation Solution
A cart-type commodity registration apparatus equipped with a movement sensor that determines cart movement, controlling the commodity registration device to enter a reduced power mode when moving above a threshold speed, ensuring equipment is available for use when stopped or moving at low speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If power saving functions are incorporated to prevent battery exhaustion, then battery life is extended, but user operability and convenience are negatively affected
Solution Approach 1:
The patent implements dynamic power management by adjusting the power consumption level of the commodity registration device based on the cart's movement state. The system transitions between power saving mode (when cart is stationary) and normal operation mode (when cart is moving), allowing the device to adapt its power consumption dynamically rather than maintaining a fixed power saving state, thus resolving the contradiction between extending battery life and maintaining user operability.
Solution Approach 2:
The patent changes the power consumption parameter of the commodity registration device according to the cart's velocity. When the cart moves above a threshold speed, the device operates at normal power level; when the cart is stationary or moves below the threshold, the device enters power saving mode. This parameter adjustment allows the system to optimize battery life while ensuring equipment availability when needed, directly addressing the technical contradiction.
2Loss of energy
If power saving mode is activated to extend battery life, then energy consumption is reduced, but equipment availability is compromised
Solution Approach 1:
The patent employs feedback from the movement sensor to control the power state of the commodity registration device. The sensor continuously monitors the cart's movement and provides feedback to the control unit, which adjusts the device's power consumption accordingly. This feedback mechanism ensures that the device is available when the cart is in use (moving) and enters power saving mode when stationary, balancing energy consumption with equipment availability.
Solution Approach 2:
The system dynamically adjusts its power consumption state based on real-time movement detection. Rather than maintaining a static power saving mode, the device transitions between operational states based on the cart's movement, ensuring reliability when needed while optimizing energy consumption during stationary periods.
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
Enhances user operability and convenience by maintaining equipment functionality during shopping, optimizing power usage based on cart movement, and preventing battery exhaustion.
Implementation Method 1
a movement sensor mounted on the cart
Data Source
AI summary
According to an embodiment cart-type commodity registration apparatus includes a cart, a battery, and a commodity registration device, such as a barcode scanner, that is on the cart and receives power from the battery. A movement sensor and an information processing terminal are also on the cart. The information processing terminal is configured to determine whether the cart is moving based on movement signals from the movement sensor indicating whether the cart is moving or stopped and control the commodity registration device to be in a reduced power mode when a received movement signal indicates the cart is moving above a threshold speed. The terminal can also be configured to place the commodity registration device in a sleep mode after a stopped signal has been continuously received from the movement sensor for a predetermined length of time.