RFID Reader Control Protocol for Mobile Terminals
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Solution Overview
Problem
Current RFID systems lack an efficient protocol for controlling RFID readers in mobile phone environments, particularly when the reader is connected through a network, necessitating a protocol suitable for mobile terminal environments to manage commands, responses, and notifications between the RFID reader and the processor.
Innovation Solution
A reader control system and method are defined, including a protocol format with specific fields and messages for commands, responses, and notifications, enabling efficient communication and control between the RFID reader and the processor in mobile terminal environments, utilizing a preamble, header, payload, and end mark structure with defined message types, codes, and payload lengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If ISO and EPC standards protocols are used for RFID reader control, then network connection capability is provided, but the protocol is not suitable for mobile phone environments
Solution Approach 1:
The patent segments the protocol into distinct components: command messages, response messages, notification messages, and error handling mechanisms. Each component is optimized for mobile phone communication constraints while maintaining RFID functionality. The message structure is divided into headers, payloads, and checksums for reliable transmission over limited bandwidth interfaces.
Solution Approach 2:
The patent introduces a dedicated reader control unit as an intermediary between the mobile phone processor and the RFID reader. This control unit manages the protocol communication, translating high-level commands into RFID-specific protocols and handling responses appropriately. The intermediary layer adapts the standard RFID protocol to mobile phone constraints.
2Productivity
If an efficient protocol is needed between RFID reader and mobile phone, then communication efficiency is improved, but protocol complexity increases
Solution Approach 1:
The protocol is designed to handle multiple communication scenarios through a unified structure that can operate in both master and slave modes. The same basic message format supports various operations including tag reading, writing, and control functions, reducing the need for separate specialized protocols for each function.
Solution Approach 2:
The patent employs parameter changes to optimize communication efficiency, including variable message lengths, selective field transmission based on operation type, and adaptive timeout values. The protocol can adjust transmission parameters dynamically based on the specific RFID operation being performed.
Data Source
AI summary
An RFID reader control system and method is provided. A protocol for controlling an RFID reader and an RFID reader control unit of a mobile phone is defined. Messages, information, commands, responses, and notification are constructed and transmitted between the RFID reader and the RFID reader control unit.