Physiological Signal Detection Device with Shared Terminals
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Solution Overview
Problem
Existing portable physiological signal detection devices face challenges in combining ease of operation, compact structure, power-saving, and low cost while effectively tracking physiological signals like temperature, electrocardiogram, and pulse information, particularly in managing charging and storage efficiently.
Innovation Solution
A physiological signal detection device with a battery, input terminals, and a charging detection terminal, coupled with a physiological signal detection circuit and charging control circuit, allowing the same terminals to be used for both signal detection and charging, utilizing a charging device with output terminals and a charging indication signal to manage power supply and charging modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate terminals are used for signal detection and charging, then signal detection accuracy is improved, but device complexity and volume increase
Solution Approach 1:
The patent implements multi-functionality by enabling the first and second terminals to serve dual purposes: detecting physiological signals (electrocardiogram, pulse) and receiving charging power. The control circuit distinguishes between measurement mode and charging mode through mode identification, allowing the same hardware terminals to perform different functions based on operational context, thereby reducing device complexity without compromising signal detection accuracy
2Reliability
If separate terminals are used for signal detection and charging, then functional reliability is improved, but device volume increases
Solution Approach 1:
The patent reduces device volume by implementing universal terminals that handle both signal detection and charging functions. The compact design integrates the control circuit to manage mode switching between measurement and charging operations, eliminating the need for separate dedicated terminals and thereby reducing overall device volume while maintaining functional reliability through proper mode identification and control
3Reliability
If separate terminals are used for signal detection and charging, then operational reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The patent improves ease of operation by allowing the same terminals to be used for both physiological signal detection and charging operations. The control circuit automatically identifies the operational mode (measurement or charging) and routes signals appropriately, enabling users to connect the device to the charging device using the same terminals used for signal detection, thereby simplifying user interaction while maintaining operational reliability through automated mode management
Data Source
AI summary
A physiological signal detection device has a battery disposed in the physiological signal detection device, a first input terminal, a second input terminal, and a charging detection terminal A physiological signal detection circuit generates a physiological signal according to a detection result of the first input terminal and the second input terminal A charging control circuit is electrically coupled to the first input terminal, the second input terminal and the charging detection terminal, wherein, when the first input terminal and the second input terminal are coupled to a power supply supplied by a charging device, the charging detection terminal receives a charging indication signal of the charging device and according to the charging indication signal the charging device is enabled so as to charge the battery with the power supply.