Power Control System for Mobile Workstation Battery Swapping
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Solution Overview
Problem
Mobile workstations in healthcare environments face downtime and inconvenience due to the need for rechargeable batteries, which require lengthy recharging periods and often necessitate extra workstations to ensure continuous use, as conventional battery switching systems are cumbersome and unsafe.
Innovation Solution
A power control system for mobile workstations that includes a microprocessor and detector interface to switch between power sourcing modes based on user interaction with removable batteries, allowing seamless power transfer without powering down the workstation, using lightweight batteries and a battery management system to optimize charging cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If rechargeable batteries are used to power mobile workstations, then the workstations can operate without wall outlets, but the workstations experience downtime during lengthy recharging periods
Solution Approach 1:
The power system is segmented into multiple independent battery units. Instead of relying on a single rechargeable battery, the system divides the power supply function across multiple batteries, allowing one battery to be in use while another is being recharged or prepared, thereby eliminating downtime.
Solution Approach 2:
The system performs preliminary actions by maintaining a charged backup battery ready before the primary battery is depleted. The microprocessor monitors battery status and prepares the power interface to switch to the backup battery in advance, ensuring continuous operation without interruption.
2Adaptability or versatility
If conventional heavy batteries are used in mobile workstations, then the workstations can operate independently, but the batteries become difficult and dangerous to handle and replace
Solution Approach 1:
The system changes the parameter of battery weight by selecting lighter battery technologies that maintain sufficient capacity. This allows the batteries to remain lightweight and safe for facility personnel to handle while still providing the necessary operating duration for mobile workstation applications.
3Productivity
If extra workstations are deployed to ensure continuous availability, then service coverage is maintained, but the quantity of equipment and cost increase
Solution Approach 1:
The power system provides multi-functionality by enabling a single workstation to serve dual roles: operating on battery power and simultaneously charging a backup battery when connected to power sources. This versatility eliminates the need for dedicated backup workstations, as each unit can sustain continuous operation through its own power management capabilities.
4Loss of time
If battery switching systems are implemented, then recharging downtime is reduced, but the systems become cumbersome and complex to operate
Solution Approach 1:
The power switching system operates autonomously through self-service mechanisms. The microprocessor automatically monitors battery status, detects when switching is needed, and executes the power interface switch without user intervention. This automation eliminates the complexity of manual battery switching while maintaining continuous operation.
Data Source
AI summary
A method of controlling a power system includes receiving a signal indicative of user interaction with a handle of a removable battery, and switching a power interface of the power system from a first power sourcing mode receiving power from the removable battery to a second power sourcing mode receiving power from a back-up battery. An electronic control unit for the power system includes a memory storing computer executable instructions for controlling power sourcing in the power control system, a detector interface configured to receive a signal indicative of user interaction with a removable battery of the mobile workstation and a microprocessor configured by way of executing the computer executable instructions to switch a power interface of the power control system from a first power sourcing mode to a second power sourcing mode.