Capacitive Pallet Sensor for Precise Goods Quantity Tracking
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Solution Overview
Problem
In the logistics industry, there is a need for an automated solution to accurately determine the quantity of goods on pallets, especially in highly integrated supply chains where timely reordering of supplies is crucial, and existing methods lack efficiency and precision.
Innovation Solution
A pallet system equipped with a measuring component that utilizes a capacitor structure with conductive layers and elastic elements, where the capacitance is measured to determine the weight of goods, allowing for automatic tracking of inventory levels and reordering, and is integrated with a control unit for connectivity via interfaces like Bluetooth or Ethernet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual counting methods are used to determine goods quantity on pallets, then implementation complexity is low, but measurement precision and productivity are insufficient
Solution Approach 1:
The patent replaces manual mechanical counting with an automated capacitive sensing system. The measuring component uses electrical capacitance changes to detect goods quantity, eliminating the need for manual intervention while achieving precise automated measurement of goods on pallets.
Solution Approach 2:
The patent utilizes changes in electrical capacitance parameters to detect variations in goods quantity. As goods are added or removed from the pallet, the capacitive value changes proportionally, providing a direct electrical signal that correlates with the actual goods quantity, thereby enabling precise measurement through parameter transformation.
2Productivity
If automated measuring systems are implemented, then productivity and measurement precision improve, but device complexity increases
Solution Approach 1:
The measuring component is designed to be universally applicable across different pallet types and goods categories. The same capacitive sensing mechanism can track various inventories without requiring system reconfiguration, enabling multi-functional use that improves productivity while avoiding the complexity of multiple specialized systems.
Solution Approach 2:
The system enables automated self-measurement of goods quantity without external intervention. The capacitive sensor automatically detects and records changes in goods weight, and the control unit processes this data to provide real-time inventory information, allowing the system to serve itself and eliminating the need for manual counting operations.
3Measurement precision
If capacitive sensing is used to measure goods weight, then measurement precision improves, but the system becomes sensitive to external electrostatic interference
Solution Approach 1:
The patent introduces a shielding layer as an intermediary element between the capacitive sensor and the external environment. This shielding layer acts as a protective barrier that blocks electrostatic interference from affecting the measurement, while allowing the sensor to continue detecting genuine changes in goods weight with high precision.
Solution Approach 2:
The patent converts the potentially harmful electrostatic interference into a useful reference signal. By incorporating shielding layers and using differential measurement techniques, the system can distinguish between genuine goods weight changes and electrostatic noise, effectively transforming the interference problem into an opportunity for enhanced measurement accuracy through comparative analysis.
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
Enables precise and automatic measurement of goods on pallets, allowing for timely reordering and improving inventory management by providing real-time weight data and reducing manual errors, while maintaining a compact and lightweight design.
Implementation Method 1
The measuring component comprises a first conductive layer and a second conductive layer spaced apart from each other forming a capacitor with a gap, wherein at least one elastic element is arranged within the gap allowing movement of the first conductive layer and the second conductive layer towards each other. A control unit of the measuring component is electrically connected to the first conductive layer and the second conductive layer, wherein the control unit is configured to measure the capacitance of the capacitor.
Implementation Method 2
at least one elastic element is arranged within the gap allowing movement of the first conductive layer and the second conductive layer towards each other
Data Source
AI summary
A pallet system (10) for transporting goods has a pallet (12) and a measuring component (14) located on top of the upper surface (18) of the pallet (12). The measuring component (14) comprises a first conductive layer (32) and a second conductive layer (34) spaced apart from each other forming a capacitor with a gap (36). At least one elastic element (30) is arranged within the gap, and a control unit (31) is electrically connected to the first conductive layer (32) and the second conductive layer (34), wherein the control unit (31) is configured to measure the capacitance of the capacitor. Further, a measuring component (14) is shown.