Security Controller Power Switching for Mobile Authentication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mobile communication terminal devices with noncontact proximity communication and wireless communication functions face power consumption issues, leading to interruptions in authentication and settlement functions when battery voltage drops, resulting in limited operational periods and potential inability to use noncontact authentication or settlement functions.
Innovation Solution
A security controller is controlled to operate in low power consumption mode using external electromagnetic field power when battery power is depleted, allowing noncontact authentication and settlement functions to continue uninterrupted, while high-performance processing is maintained when battery power is available.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the security controller operates with high performance for multifunctional processing, then authentication and settlement functions are enhanced, but power consumption increases
Solution Approach 1:
The security controller dynamically switches between high-performance mode (when battery power is available) and low-power mode (when electromagnetic field power is used), adjusting its operational characteristics based on the power source being utilized
Solution Approach 2:
The controller changes operational parameters such as CPU clock frequency and processing speed based on the detected power source type, reducing parameters when running on electromagnetic field power to minimize power consumption
2Reliability
If the battery power supply capability drops below threshold, then the device stops principal functions, but noncontact authentication functions remain potentially usable
Solution Approach 1:
The system introduces electromagnetic field power as an intermediary power source that specifically supports noncontact authentication functions when battery power is insufficient, bridging the gap between complete battery dependency and full functionality
Solution Approach 2:
The power supply system is segmented into two independent sources: battery power for principal functions and electromagnetic field power for noncontact authentication functions, allowing independent operation of each function set
3Duration of action of moving object
If noncontact authentication functions consume more power than dedicated card terminals, then battery life is extended, but operational period becomes very short
Solution Approach 1:
The noncontact authentication function is extracted as a separate operational mode that can be independently powered by electromagnetic field energy, separating it from the battery-powered principal functions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables stable and uninterrupted use of noncontact authentication and settlement functions even when battery voltage drops, extending the operational period of mobile communication terminal devices by switching to electromagnetic field power during battery power shortages.
Implementation Method 1
They receive a carrier wave (carrier) generated by an oppositely placed reader/writer and operates using its electromagnetic field power
Data Source
AI summary
A mobile communication terminal device whose authentication and settlement functions by noncontact proximity communication can be continuously used even after operating voltage from battery power drops is provided. Only when the supply of required power from a battery is lost, a security controller is controlled into a mode in which it operates with low power consumption and noncontact authentication and settlement functions are ensured by external electromagnetic field power. Specifically, the following is implemented: when there is the supply of required power from the battery, it is made possible to carry out high-performance, multifunctional authentication and settlement processing making good use of high-speed processing, mass storage, and the like which are the advantages of the security controller essentially driven by battery; and in an anomalous instance in which the battery remaining capacity is lost, it is made possible to carry out minimal authentication and settlement processing.