Sensor Assembly Power Latch for Pre-Deployment Battery Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Medical devices, such as sensor devices, face challenges in maximizing battery life without increasing device size, as larger batteries result in increased user burden, especially for wearable devices.
Innovation Solution
A mechanism with a power control switch that transitions between open and closed configurations to minimize battery power consumption before deployment and facilitate power delivery upon deployment, using a power latch to maintain power delivery once the device is deployed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If battery size is increased to extend operational life, then device operational life is improved, but device size and user burden increase
Solution Approach 1:
The power control switch is configured to open before deployment, preventing power consumption in advance. This preliminary action ensures the battery remains unused during storage and transport, effectively extending the operational life without requiring a larger battery.
Solution Approach 2:
The power consumption issue is extracted and addressed separately through the power control switch mechanism. By isolating the power delivery control from the battery itself, the system can prevent unnecessary power consumption without changing battery size, thus resolving the contradiction between operational life and device size.
2Reliability
If power is delivered continuously to components, then device functionality is maintained, but battery power consumption increases
Solution Approach 1:
The power control switch transitions dynamically between open and closed states based on deployment status. Before deployment, the switch is open, preventing power consumption. Upon deployment, the switch closes to enable power delivery, and the power latch maintains this state. This dynamic control optimizes energy usage while ensuring reliability when needed.
Solution Approach 2:
The power control switch acts as an intermediary between the battery and the sensor components. It controls the flow of power, allowing the system to maintain functionality when required while preventing unnecessary power consumption during storage and transport.
3Reliability
If power control switch remains closed to ensure power availability, then device reliability is improved, but power consumption before deployment increases
Solution Approach 1:
The power control switch is preliminarily configured to be open before deployment, preventing energy loss in advance. This preliminary state ensures no power is consumed during storage and transport, while the deployment mechanism subsequently closes the switch to ensure power availability when needed.
Solution Approach 2:
The deployment mechanism automatically triggers the power control switch to close, and the power latch maintains this state without requiring continuous control signals. This self-service mechanism ensures power availability while minimizing control circuit power consumption.
Data Source
AI summary
A sensor assembly for sensing a physiological characteristic of a user includes a power source, a power control switch, and a power latch within a housing. The power control switch is electrically coupled to the power source, and is configured to inhibit delivery of power from the power source to one or more components of the sensor assembly before deployment of the sensor assembly to a user, and deliver power from the power source to the one or more components of the sensor assembly in response to the deployment of the sensor assembly to the user. The power latch is configured to, upon the deployment of the sensor assembly to the user, latch an output of the power control switch to maintain the delivery of power from the power source to the one or more components of the sensor assembly while the sensor assembly is in a deployed state.