Flexible RFID Strips for Logistics Tracking
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Solution Overview
Problem
Conventional RFID antenna systems in logistics face challenges such as radioelectric interference, instability due to environmental factors like temperature and humidity, mechanical shock resistance issues, and difficulties in accurately tracking packages, especially in environments with stacked pallets, leading to inefficiencies and potential errors in real-time monitoring and traceability.
Innovation Solution
Integration of flexible RFID reader antenna modules into flexible strips with distributed radiating elements, power dividers, phase-shifting circuits, optical sensors, and microelectronic management modules, along with biosensors and display modules, to create a uniform radiating field and ensure real-time tracking and control, while maintaining temperature stability and mechanical flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional rigid RFID antenna systems are installed in logistics areas, then they can provide basic tracking functionality, but they suffer from radioelectric interference, environmental instability, and mechanical shock sensitivity
Solution Approach 1:
The patent applies this principle by integrating RFID antenna modules directly into flexible strip curtains that can bend and adapt to mechanical movements. The flexible strips with embedded rigid or flexible antenna modules resist mechanical shocks and environmental variations better than conventional rigid gantry-mounted antennas, while maintaining RFID functionality in dynamic logistics environments.
Solution Approach 2:
The patent combines different materials and technologies by integrating rigid or flexible antenna modules into flexible strip curtains. This composite structure combines the electromagnetic radiation capability of RFID antennas with the mechanical flexibility and environmental resistance of strip curtain materials, creating a system that is both electromagnetically functional and mechanically robust.
2Area of stationary object
If multiple conventional antennas are installed to cover all directions, then radiation coverage is improved, but radioelectric interference between adjacent portals increases
Solution Approach 1:
The patent divides the RFID radiation system into multiple independent flexible strips, each containing its own antenna module. These segmented strips are distributed throughout the logistics area, allowing localized radiation coverage without the interference problems of large centralized antenna arrays. Each strip operates independently, reducing radioelectric interference between adjacent portals.
Solution Approach 2:
The patent implements local quality by placing RFID antenna modules at specific locations within flexible strips at critical control points throughout the logistics area. This localized approach provides targeted radiation coverage where needed most, rather than attempting uniform coverage with large antenna arrays that generate interference.
3Reliability
If rigid antenna modules are used for stable electromagnetic performance, then radiation quality is maintained, but mechanical flexibility and shock resistance are reduced
Solution Approach 1:
The patent applies this principle by housing rigid or flexible antenna modules within flexible strip curtains. The flexible strip acts as a protective shell that absorbs mechanical shocks and allows the antenna module to maintain stable electromagnetic performance while being mechanically protected from damage.
Solution Approach 2:
The patent creates a composite structure where rigid antenna modules are integrated into flexible strip materials. This combination allows the antenna to maintain stable electromagnetic characteristics while the flexible strip provides mechanical shock resistance and adaptability to environmental movements.
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
The solution enables efficient, real-time tracking and control of packages and substances across logistics areas, reducing errors and enhancing productivity by providing accurate directionality and qualitative traceability, while withstanding mechanical stresses and environmental variations.
Implementation Method 1
reader antennas arranged around the gate so as to generate a field capable of radiating in all the directions of space
Implementation Method 2
optical display modules of the OLED or PHOLED type, which make it possible to signal the quantitative and qualitative state
Data Source
Figure 1
AI summary
The present invention relates to a strap device for a curtain or a flexible door, said straps having embedded RFID reader antenna modules and different MEMS and MOEMS sensors that make it possible to detect the direction of the objects passing through the gate and also detect the size of the objects so as to modulate the switching of the radiating elements of antennas on the basis of the position of the objects being read. The device also has embedded biosensors that measure in parallel the presence of toxic substances or materials. The device according to the invention has an LED or OLED and PHOLED display means embedded in the strap, more specifically, in a flexible material of the strap. The invention is particularly intended for the qualitative and quantitative traceability of materials passing through a logistical check gate. The device is intended for all places already having curtains with flexible straps, into which it is easily embedded. The device is suitable for all existing RFID readers.