BLE Asset Tag with Integrated Scanner for Beacon Transmission
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Solution Overview
Problem
RFID technology exhibits poor sensitivity, limited detection range, and short working lifetime, especially when used on assets with metallic surfaces or liquids, and requires high-power readers for programming and de-commissioning, making it difficult to accurately track and locate assets and redeploy tags in various locations.
Innovation Solution
A Bluetooth Low Energy (BLE)-based asset tag with an integrated scanner that electro-optically reads and transmits asset-identifying codes via beacon packets, allowing for accurate and reliable tracking and location of assets over extended ranges, with the ability to be programmed and de-commissioned at any location using low power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If RFID technology is used to track and locate assets, then asset tracking capability is provided, but reading performance and detection range are poor
Solution Approach 1:
The patent changes the fundamental operating parameters of the tracking system by switching from RFID radio frequency technology to BLE (Bluetooth Low Energy) technology. This parameter change enables better reading performance and extended detection range while maintaining asset tracking functionality, directly resolving the contradiction between measurement precision and reliability.
2Adaptability or versatility
If RFID tags are used on metallic surfaces or with liquids, then asset tracking is attempted, but sensitivity and detection accuracy deteriorate
Solution Approach 1:
The patent substitutes the RFID electromagnetic field-based system with a BLE optical/electromagnetic hybrid system that uses an integrated scanner. This substitution replaces the problematic RF signal interaction with metallic surfaces and liquids with a scanning mechanism that can accurately detect asset-identifying codes regardless of the asset's material composition, thereby eliminating the harmful interference effect.
3Ease of operation
If high-power RFID readers are used to program and de-commission tags, then tag writing capability is achieved, but power consumption is high and portability is reduced
Solution Approach 1:
The patent implements self-service functionality by integrating the scanner directly into the asset tag itself. This allows the tag to autonomously scan its own asset-identifying code and load it into the BLE advertising packet payload without requiring external high-power readers for programming, thereby eliminating the need for portable power sources and enabling truly portable, low-power operation.
4Manufacturing precision
If dedicated tag writing stations are used for RFID tag programming, then accurate tag writing is achieved, but device portability and flexibility are reduced
Solution Approach 1:
The patent extracts the tag writing capability from the centralized, stationary writing station and embeds it directly into the portable asset tag through the integrated scanner. This extraction allows the tag to be programmed autonomously at any location without requiring access to dedicated writing stations, thereby achieving both writing accuracy and deployment flexibility simultaneously.
5Productivity
If RFID technology is used for asset tracking, then inventory monitoring is provided, but working lifetime is brief
Solution Approach 1:
The patent adopts a disposable barcode/asset-identifying code approach instead of requiring long-lived, reprogrammable RFID tags. The integrated scanner reads these inexpensive, single-use codes and loads them into the BLE advertising packet, enabling continuous inventory tracking with extended system lifetime while the individual tags remain simple, low-cost units that don't require complex power management for long-term operation.
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 BLE-based asset tag improves reading performance and range, extends the working lifetime, and enables accurate and reliable tracking and location of assets, allowing for easy redeployment and de-commissioning, while reducing costs and size.
Implementation Method 1
a scanner supported by the device and operative for scanning the code
Implementation Method 2
a Bluetooth low energy radio supported by the device and operative for transmitting an advertising beacon in an advertising packet having a payload
Data Source
AI summary
A Bluetooth low energy (BLE)-based asset tag transmits a code that identifies an asset. A device is attached to the asset. The code is scanned with a scanner supported by the device. An advertising beacon is transmitted in an advertising packet having a payload with a Bluetooth low energy (BLE)-based radio supported by the device. The scanned code is automatically loaded into the payload. The advertising packet with the scanned code in the payload is periodically transmitted as a series of beacon pulses.