Multi-Antenna NFC Control for Unfriendly Phone Working Modes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing near field communication (NFC) technologies face challenges in maintaining a high success rate and efficiency due to variations in antenna configurations, power consumption, and unfriendly working modes between NFC devices and mobile phones, leading to reduced reading distances and inconsistent communication performance.
Innovation Solution
A method and apparatus that utilize multiple NFC antennas to collect signals, determine unfriendly working modes, and send excitation signals to switch the mode to a compatible state, ensuring effective communication connections are established.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If a large antenna is used to expand sensing range, then the sensing range increases, but signal strength per unit area decreases leading to reduced reading distance
Solution Approach 1:
The patent implements dynamic antenna selection and switching between different NFC antennas based on real-time signal quality detection. The system continuously monitors communication status and dynamically adjusts which antenna is active, optimizing performance for different sensing scenarios without requiring a physically large antenna structure.
Solution Approach 2:
The system changes operational parameters including antenna selection, excitation signal transmission, and power consumption modes based on detected working conditions. By adjusting these parameters dynamically, the system maintains reliable reading distance while achieving expanded sensing range through intelligent control rather than physical size increase.
2Adaptability or versatility
If different mobile phones with varying antenna configurations are used, then device compatibility increases, but actual sensing effect becomes inconsistent affecting success rate and efficiency
Solution Approach 1:
The patent implements a feedback mechanism where the NFC device detects the working mode of the sensing object (mobile phone) and adjusts its own working mode accordingly. The system monitors communication success rates and sensing effects, then feeds this information back to modify antenna selection and excitation signal parameters, ensuring consistent performance across different device configurations.
Solution Approach 2:
The system performs preliminary detection of the sensing object's working mode before establishing full communication. By detecting antenna status and power consumption modes in advance, the NFC device can pre-adjust its configuration to match the mobile phone's characteristics, ensuring consistent sensing effect from the outset rather than dealing with incompatibilities during operation.
3Reliability
If excitation signal is sent to sensing object in unfriendly working mode, then communication success rate improves, but additional energy consumption occurs
Solution Approach 1:
The patent applies excitation signals selectively only when unfriendly working modes are detected, rather than continuously. The system performs partial action by targeting specific problematic cases (low power consumption modes, abnormal antenna states) with excitation signals, avoiding unnecessary energy consumption in normal operating conditions while still improving communication success rate when needed.
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
Improves the success rate and efficiency of NFC interactions by actively intervening in unfriendly working modes, allowing seamless communication between NFC devices and mobile phones, enhancing signal strength and range.
Implementation Method 1
Near field communication (NFC) is a short-distance high-frequency radio technology that runs within a distance of 20 centimeters at a frequency of 13.56 MHz
Implementation Method 2
sending an excitation signal to the sensing object by using at least one near field communication antenna, so that the sensing object exits the unfriendly working mode in response to the excitation signal
Data Source
AI summary
Embodiments of this specification disclose a near field communication control method and apparatus, and a near field communication device, to help improve a success rate and efficiency of near field communication between a near field communication device of a merchant and a mobile phone of a user. The solution includes: collecting a near field communication signal of a currently approaching sensing object by using one or more near field communication antennas deployed on a near field communication device; determining a working mode of the sensing object based on the near field communication signal; if it is determined that the sensing object is in an unfriendly working mode, sending an excitation signal to the sensing object; and establishing a communication connection to the sensing object by using at least one near field communication antenna, and executing a target service through the communication connection.