Distance-Aware Wireless Link for Low-Power Wearable Data Transfer
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Solution Overview
Problem
Existing IoT devices face high power consumption and security risks due to long-range wireless communication, especially in body-worn devices like smart insulin pumps and glucose monitors, which require large batteries and increase ecological footprint, and are vulnerable to eavesdropping and man-in-the-middle attacks.
Innovation Solution
Implement a method and apparatus for point-to-point wireless communication that adjusts data transmission based on distance and battery level, transmitting high-priority data without distance constraints and low-priority data only within a short range, using reduced transmit power to conserve energy and enhance security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If long-range wireless communication is used in body-worn devices, then communication range is extended, but power consumption increases and security risks arise
Solution Approach 1:
The patent implements dynamic adjustment of transmit power based on real-time distance measurements between devices. The system continuously monitors the distance and adapts the transmission power level accordingly, using higher power only when necessary for longer ranges and lower power for short-range communication, thereby optimizing energy consumption while maintaining required communication range
Solution Approach 2:
The patent changes the transmission parameter (power level) based on the distance parameter. By measuring distance and adjusting the transmit power parameter dynamically, the system achieves efficient energy utilization - using minimum necessary power for the actual communication distance while preserving the capability for extended range when needed
2Length of stationary object
If long-range wireless communication is used in body-worn devices, then communication range is extended, but security vulnerabilities increase due to eavesdropping and man-in-the-middle attacks
Solution Approach 1:
The patent dynamically adjusts communication behavior based on distance measurements. When devices are within close proximity (short range), the system uses lower power transmission which is inherently more secure. When distance increases, the system adjusts power levels appropriately. This dynamic approach reduces exposure to eavesdropping and man-in-the-middle attacks by limiting high-power transmission to only when absolutely necessary
Solution Approach 2:
The patent changes transmission parameters (power level) based on the distance parameter to optimize security. By using lower power levels for short-range communication, the signal is less susceptible to interception. The system adapts the transmission parameter to match the security requirements of the current communication scenario
3Length of stationary object
If large batteries are used in body-worn devices to support long-range communication, then communication range is extended, but device weight and size increase
Solution Approach 1:
The patent implements dynamic power adjustment based on distance measurements, allowing the device to use higher transmit power only when needed for extended range communication. For typical short-range scenarios, the system uses lower power levels, thereby extending battery life and reducing the required battery capacity, which directly reduces device weight while preserving the capability for longer-range communication when necessary
4Length of stationary object
If large batteries are used in body-worn devices to support long-range communication, then communication range is extended, but device form factor and ecological footprint increase
Solution Approach 1:
The patent uses dynamic distance-based power adjustment to optimize battery utilization. By measuring the actual distance between devices and adapting transmit power accordingly, the system extends effective battery life and reduces the required battery volume. This allows the device to maintain extended communication range capability while using a smaller battery, thereby reducing overall device volume and ecological footprint
Data Source
AI summary
A method and apparatus for point-to-point wireless communication between a first wireless communication device, the first wireless communication device configured as an on-body device and a second wireless communication device. A distance between the first wireless communication device and the second wireless communication device by a ranging measurement is determined. In response to the distance being less than a distance threshold value, data of a first data type is transmitted from the first wireless communication device to the second wireless communication device. In response to the distance being greater than the distance threshold value, data of a second data type is transmitted from the first wireless communication device to the second wireless communication device.