Dual-Channel Wireless Communication Using Bodypass Pre-Pairing
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Solution Overview
Problem
Current near-field communication systems, such as those using the human body for data transmission, are limited by low data rates and require physical proximity to the reader, restricting user mobility during transactions.
Innovation Solution
A dual-channel communication method where an initial Bodypass-type pre-pairing phase allows data transmission through the human body for proximity-based communication, followed by a secondary wireless channel, like Bluetooth, enabling bidirectional communication and allowing the user to move freely after initial contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If Bodypass-type communication through the human body is used, then proximity-based transaction is enabled, but data transfer rate remains low and user mobility is restricted
Solution Approach 1:
The communication process is segmented into two distinct phases: a first phase using Bodypass-type communication through the human body for initial authentication and pairing, and a second phase using traditional radio frequency communication for actual data transfer. This segmentation allows each phase to utilize the most appropriate communication method for its specific function, thereby resolving the contradiction between proximity requirement and data transfer rate.
Solution Approach 2:
The system performs preliminary authentication and pairing actions through the human body in the first phase before establishing traditional radio communication in the second phase. This preliminary action enables the subsequent high-speed data transfer without requiring continuous physical contact, thus improving both data transfer rate and user mobility.
2Reliability
If continuous physical contact with the reader is maintained for transaction completion, then communication reliability is ensured, but user convenience deteriorates due to hands-free operation loss
Solution Approach 1:
The communication process is divided into two phases: the first phase uses Bodypass-type communication through the human body for initial authentication and pairing, while the second phase uses traditional radio frequency communication for actual data transfer. This segmentation allows the system to maintain communication reliability during the critical authentication phase while enabling hands-free operation during the data transfer phase, as radio communication does not require continuous physical contact.
Solution Approach 2:
The human body acts as an intermediary medium in the first phase to establish secure pairing between the portable device and the reader. Once pairing is established through this intermediary, the actual data transfer occurs through traditional radio waves without requiring the body to continue mediating the connection, thus maintaining reliability while enabling hands-free operation.
3Reliability
If the antenna is placed very close to the user's body, then Bodypass communication effectiveness is improved, but user comfort deteriorates due to device accessibility constraints
Solution Approach 1:
The system performs the critical authentication and pairing actions through the human body in the first phase when the device is close to the body. Once this preliminary action is completed, the actual data transfer in the second phase occurs through radio communication, allowing the device to be placed in more comfortable locations such as pockets or bags without compromising communication effectiveness.
4Duration of action of stationary object
If electromagnetic waves are continuously transmitted through the human body, then communication continuity is maintained, but health risks increase due to prolonged electromagnetic exposure
Solution Approach 1:
The communication process is segmented into two phases: the first phase uses Bodypass-type communication through the human body for initial authentication and pairing, while the second phase uses traditional radio frequency communication for actual data transfer. This segmentation limits electromagnetic exposure through the body to only the brief authentication phase, while the subsequent data transfer phase uses radio waves that do not require body conduction, thus maintaining communication continuity while reducing health risks.
Solution Approach 2:
The system uses periodic action by switching between two communication modes: Bodypass-type communication is activated only during the initial authentication phase, followed by radio frequency communication for the remainder of the transaction. This periodic switching reduces continuous electromagnetic exposure through the body while maintaining communication continuity throughout the entire transaction process.
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
This approach enhances data transfer rates and security while allowing users to conduct transactions without physically touching the reader, maintaining hands-free operation and reducing health risks associated with continuous electromagnetic exposure.
Implementation Method 1
using the conductivity capacity of the human body to transmit electromagnetic waves carriers of such wireless communications
Data Source
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AI summary
The invention relates to a method for communicating on a first device, termed the terminal (1). The terminal is able to receive a message (M) in a carrier radiowave (S) by using the electromagnetic wave conduction capacities of a first channel (BP), being supported by the body of a user carrying the terminal. The terminal is also able to communicate with a second device over a second wireless channel (BT, WIFI) having a support separate from the body of the user. The method is characterised in that it comprises the following steps on the terminal: - receiving (E1), over the first channel (BP), the first message (M) comprising at least one item of peering data (ALEA) coming from another device; - establishing a communication session (SBT) over the second channel (BT) with said second device, using said item of peering data (ALEA). - communication between the two devices with said second device over the second radio channel (BT).