Multi-Function RFID Tag Integrating OBD and Cellular Circuits
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Solution Overview
Problem
Existing RFID electronic tags have single functions, which fail to meet the diverse needs of users in various applications, particularly in tracking vehicle data and managing geographical region changes for toll settlements and emissions monitoring.
Innovation Solution
An electronic tag device with a housing and circuit board, equipped with a controller, RFID tag circuit, and cellular communication and positioning circuit, capable of obtaining and storing OBD data, updating tag data based on geographical location, and transmitting encrypted data to servers for vehicle monitoring and toll management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing RFID electronic tags use single function design, then device complexity is reduced and manufacturing is easier, but adaptability and versatility are insufficient to meet diverse user needs
Solution Approach 1:
The patent implements multi-functionality by integrating RFID tag circuit, cellular communication circuit, positioning circuit, OBD data acquisition circuit, and LED indicator circuit into a single electronic tag device. The controller coordinates these circuits to enable the device to perform RFID identification, cellular communication, positioning, OBD data acquisition, and visual indication functions simultaneously, thereby achieving universal applicability across multiple scenarios without requiring separate devices for each function.
Solution Approach 2:
The patent combines previously separate functions (RFID tagging, cellular communication, GPS positioning, OBD diagnostics) into a single integrated electronic tag device. The housing accommodates all circuit boards and components together, with the controller serving as a central coordination hub that merges the operation of multiple independent circuits into a unified system, reducing the need for multiple separate devices.
2Adaptability or versatility
If the electronic tag device acquires and stores multiple sets of tag data for different geographical regions, then adaptability to regional toll policies is improved, but memory requirements and device complexity increase
Solution Approach 1:
The patent pre-loads multiple sets of tag data corresponding to different geographical regions into the device's memory before actual use. When the device is activated in a specific region, the controller automatically selects and uses the appropriate pre-stored tag data set, eliminating the need for real-time data acquisition and processing during toll transactions. This preliminary preparation enables rapid adaptation to different regional policies without increasing operational complexity.
3Adaptability or versatility
If the device integrates OBD data acquisition and conversion capabilities, then functionality and user needs coverage are improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent introduces a controller as an intermediary component that mediates between the OBD data acquisition circuit and other system components. The controller receives raw OBD data, performs format conversion to ISO18000-6C standard, and transmits the converted data to the RFID tag circuit or external servers. This intermediary role simplifies the overall system architecture by centralizing data processing logic and enabling standardized communication between heterogeneous components.
4Ease of repair
If the device uses detachable circuit board design, then ease of repair and maintenance are improved, but connection reliability and manufacturing precision requirements increase
Solution Approach 1:
The patent divides the electronic tag device into separable modules: a housing containing the main circuit board, and a detachable circuit board that can be removed and replaced independently. The detachable circuit board includes the OBD data acquisition circuit and other components that may require frequent maintenance or region-specific configuration. This segmentation enables easy replacement of individual modules without disassembling the entire device, significantly improving maintenance efficiency while isolating connection interfaces to standardized connectors.
Data Source
AI summary
An electronic tag device is provided and includes: a housing and a circuit board. The housing defines an accommodating cavity, and the circuit board is detachably disposed in the accommodating cavity. The circuit board is provided with a controller, a radio frequency identification (RFID) tag circuit connected to the controller, and a cellular communication and positioning circuit connected to the controller. The electronic tag device has multiple functions, thereby to meet the actual needs of users.