Medical Sensor ASIC and BLE Pairing for Low-Power Data Integrity
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Solution Overview
Problem
Existing medical sensors face challenges in efficiently pairing with other devices for seamless communication while protecting sensitive data, maintaining low power consumption, and ensuring compatibility with various receiving devices, particularly when operating wirelessly and worn by patients.
Innovation Solution
An embedded system comprising an application-specific integrated circuit (ASIC) and a communication module, configured to process measurement signals, manage wireless communication, and authenticate devices using near-field and Bluetooth Low-Energy protocols, with temperature-adjusted transmission power and device-specific data verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If medical sensors use powerful processors and permanent power supplies to enhance processing capability and reliability, then computational performance and reliability are improved, but device complexity and cost increase
Solution Approach 1:
The patent divides the processing system into two segments: a simple low-power processor in the medical sensor and a powerful remote processor in the receiving device. The sensor performs only essential local processing while offloading complex computations to the remote device, thereby maintaining reliability without increasing device complexity or cost at the sensor level
Solution Approach 2:
The patent extracts the complex processing functions from the medical sensor and relocates them to the receiving device. This extraction allows the sensor to operate with minimal processing capabilities while maintaining system reliability through remote processing support
2Productivity
If medical sensors use dedicated specialized components to increase processing efficiency, then computational efficiency is improved, but component cost increases
Solution Approach 1:
The patent employs a universal low-power processor that can perform multiple functions including signal processing, wireless communication, and data management. This multi-functional approach eliminates the need for expensive dedicated specialized components while maintaining processing efficiency through software-based solutions
3Reliability
If medical sensors implement secure wireless communication with authentication to protect sensitive data, then data security is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent introduces a receiving device as an intermediary that performs complex authentication and security verification functions. The medical sensor simply transmits data while the receiving device handles security protocols, thereby maintaining data security without increasing sensor complexity
4Reliability
If medical sensors use wired communication to ensure stable data transmission, then communication reliability is improved, but patient mobility and convenience are restricted
Solution Approach 1:
The patent replaces the mechanical wired connection system with a wireless communication system. This substitution maintains communication functionality while eliminating physical constraints on patient movement, thereby improving ease of operation without significantly compromising communication reliability
5Duration of action of moving object
If medical sensors are designed to operate for extended periods with low power consumption, then battery life is improved, but computational capability and processing power are reduced
Solution Approach 1:
The patent segments computational tasks between the low-power sensor processor and the remote processing device. The sensor performs only essential local processing to extend battery life, while complex computational capabilities are provided remotely, effectively combining low power consumption with high computational capability
Data Source
AI summary
A medical sensor includes an application-specific integrated circuit (ASIC), medical hardware, and a communication module. The ASIC is communicatively coupled to the medical hardware and communication module. The ASIC is configured to receive measurement signals from the medical hardware and provide the measurement signals to the communication module. The communication module is configured to process the measurement signal into measurement results and transmit the measurement results to a remove device. The communication module includes an application layer for processing the measurement signals and a link layer for transmitting the measurement results. The ASIC is configured to detect that a voltage supplied to the ASIC is below a threshold level and determine an amount of time that the voltage has been below the threshold level. The ASIC is further configured to respond to the voltage supplied to the ASIC being below a threshold level based on the determined amount of time.