Smart Shopping Cart Sensor Array for Automated Checkout Tracking
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Solution Overview
Problem
Conventional physical shopping carts require manual unloading and scanning of items at checkout, which is inefficient and inconvenient for customers, and do not provide features for electronic tracking or mobile device integration.
Innovation Solution
Equipping physical shopping carts with product detection systems, such as sensors and scanners, and associating them with mobile computing devices to enable electronic tracking and checkout from the cart, allowing users to manage their shopping list and bag items directly within the cart.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional physical shopping carts are used without electronic systems, then the device complexity is low, but the productivity and ease of operation at checkout deteriorate due to manual unloading and scanning requirements
Solution Approach 1:
The shopping cart system automatically detects items placed in the cart using sensors and scanners, maintains an electronic tally without customer intervention, and enables self-checkout functionality. The system serves itself by automatically tracking items and providing checkout capabilities without requiring manual customer action at traditional checkout points.
Solution Approach 2:
The patent replaces manual mechanical processes (customers physically unloading and scanning items at checkout) with electronic detection systems. Sensors, scanners, and mobile computing devices substitute for the mechanical actions of manual item handling, scanning, and tallying, thereby improving checkout efficiency while managing system complexity through electronic automation.
2Reliability
If sensors are kept active continuously to detect items, then the reliability of item detection is improved, but the energy consumption increases
Solution Approach 1:
The system uses periodic sensing where the initial sensor continuously monitors for item placement events, and only activates the secondary sensor when needed. This periodic activation pattern ensures reliable detection of items while minimizing energy consumption by keeping the more power-intensive secondary sensor in a low-power state most of the time, activating it only upon detection of a possible item.
Solution Approach 2:
The initial sensor acts as an intermediary between the environment and the secondary sensor. It continuously monitors for item placement events with low energy consumption and serves as a trigger mechanism that activates the secondary sensor only when necessary. This intermediary approach maintains detection reliability while managing energy usage by filtering when the high-power secondary sensor needs to operate.
Data Source
AI summary
A physical shopping cart comprises a controller and a sensor array comprising an initial sensor configured to detect possible-items placed into the physical shopping cart and a secondary sensor configured to determine if possible-items detected by the initial sensor is are items-of-interest. The physical shopping cart is configured to maintain the secondary sensor in a low-power state; sense a possible-item placed into the physical shopping cart; determine if the possible-item is an item-of-interest; and transmit a sense-message that identifies the item-of-interest.