Mobile Terminal Fingerprint Unlock Parallel PMS Wakeup
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Solution Overview
Problem
Current fingerprint identification technologies in mobile terminals are inefficient in switching from a screen-off state to a screen-on unlock state, leading to longer unlocking times, which affects user experience and competition among manufacturers.
Innovation Solution
The method involves acquiring an original fingerprint image and concurrently waking up the power management service (PMS) when a touch operation is detected on the fingerprint identification module, allowing for simultaneous fingerprint identification and screen lighting, thereby reducing the time required to switch states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the power management service (PMS) is woken up after fingerprint acquisition is completed, then the system can ensure proper power management control, but the total unlocking time increases due to sequential processing
Solution Approach 1:
The PMS is woken up in advance when the fingerprint acquisition request is received, before the actual fingerprint image is captured. This preliminary action allows the PMS to be ready and waiting when the fingerprint data becomes available, eliminating the need to wait for PMS activation after acquisition completes.
Solution Approach 2:
The system maintains continuous useful action by overlapping the fingerprint acquisition process with the PMS wake-up process. Both operations proceed simultaneously rather than sequentially, maximizing resource utilization and minimizing total processing time while maintaining proper power management control.
2Loss of time
If the screen lighting process is performed after fingerprint verification is complete, then the system can ensure proper verification control, but the unlocking time increases due to sequential processing
Solution Approach 1:
The screen lighting process is initiated in advance when fingerprint verification is completed, rather than waiting until after verification. This preliminary action ensures the screen lighting is already in progress or complete by the time verification results are needed, reducing overall unlocking time while maintaining proper verification control.
Solution Approach 2:
The system maintains continuous useful action by overlapping the fingerprint verification process with the screen lighting process. Both operations proceed simultaneously, maximizing resource utilization and minimizing total processing time while ensuring verification integrity.
3Loss of time
If the PMS is woken up concurrently with fingerprint acquisition, then the unlocking time is reduced through parallel processing, but the energy consumption increases
Solution Approach 1:
The PMS is woken up preliminarily when the fingerprint acquisition request is received, allowing it to enter a low-power waiting state rather than fully activating. This approach prepares the PMS for upcoming tasks while minimizing energy consumption during the acquisition phase, balancing speed improvements with power efficiency.
Data Source
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AI summary
An unlocking method and a mobile terminal (100) are provided. The method includes the following. An original fingerprint image is acquired to perform a fingerprint identification process and a power management service (PMS) of the mobile terminal (100) is woken up when detecting a touch operation on a fingerprint identification module (111) of the mobile terminal (100). The PMS is notified to light up a screen when detecting that a result of the fingerprint identification process is match. The method is beneficial to improving unlocking efficiency of the mobile terminal (100) and user experience.