Mobile X-ray Battery Power Control for Extended Preservation
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Solution Overview
Problem
Mobile X-ray apparatuses face challenges in prolonging battery life due to continuous power supply to monitoring integrated circuits during shutdown, leading to potential battery discharge and reduced preservation periods.
Innovation Solution
Implementing a power control method that blocks power to the monitoring integrated circuit when the mobile X-ray apparatus is shut down, preventing battery discharge and extending the battery's preservation period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power is continuously supplied to the monitoring integrated circuit during shutdown, then the monitoring function remains active, but battery discharge occurs and preservation period is reduced
Solution Approach 1:
The monitoring integrated circuit operates periodically rather than continuously. During shutdown mode, the circuit is activated only when needed for monitoring battery voltage, then powered down to prevent continuous discharge. This periodic operation maintains monitoring reliability while extending battery preservation period.
Solution Approach 2:
The monitoring function is extracted from the continuous power supply system and placed on a separate controllable power line. This allows the monitoring integrated circuit to be independently powered only when necessary, separating the monitoring requirement from continuous battery discharge prevention.
2Duration of action of moving object
If power is blocked to the monitoring integrated circuit during shutdown, then battery discharge is prevented and preservation period is extended, but monitoring function is lost
Solution Approach 1:
The system automatically determines shutdown status and controls power supply to the monitoring integrated circuit without continuous external intervention. The controller monitors system state and autonomously activates or deactivates the monitoring circuit based on whether the apparatus is in operation or shutdown mode, achieving self-service power management.
3Measurement precision
If the monitoring integrated circuit operates continuously, then voltage monitoring is always available, but energy consumption increases
Solution Approach 1:
The power supply state of the monitoring integrated circuit is made dynamic rather than static. The circuit transitions between active and inactive states based on system operation status, allowing voltage monitoring availability to be maintained during operation while energy consumption is reduced during shutdown through controlled deactivation.
Data Source
AI summary
In a mobile X-ray apparatus including a power supply supplying operation power, the power supply may include: a battery pack including a plurality of battery cells; a battery management system configured to control the operation power to be supplied from the battery pack to at least one component of the mobile X-ray apparatus; and a monitoring integrated circuit configured to monitor a voltage of the plurality of battery cells and control monitoring power supplied from the plurality of battery cells, based on whether the operation power is supplied to at least one component of the mobile X-ray apparatus.