Battery Power Control for DMB Terminals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
DMB terminals face high power consumption issues, leading to potential battery power depletion, which can disrupt call services, especially in portable and vehicle-mounted terminals.
Innovation Solution
An apparatus and method that utilize first and second RF signal processors, a DMB modem, and a voltage detector to monitor and manage battery power levels, disabling the DMB modem when voltage falls below a threshold to ensure minimum battery power is reserved for call services, and storing parameters for efficient power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the DMB modem operates continuously to provide DMB service, then the DMB service quality is maintained, but the battery power consumption increases and may deplete below the minimum required for call service
Solution Approach 1:
The system dynamically adjusts the operating state of the DMB modem based on real-time battery voltage detection. When voltage exceeds the threshold, the modem operates normally; when voltage falls below the threshold, the modem is disabled. This dynamic state adjustment resolves the contradiction by making power consumption adaptive to battery status while ensuring call service reliability through threshold-based protection.
Solution Approach 2:
The voltage detector continuously monitors battery voltage and provides feedback to the control logic. This feedback mechanism enables the system to detect when battery power drops below the threshold and automatically disable the DMB modem, preventing complete battery depletion and ensuring minimum power remains for call services.
2Use of energy by moving object
If the DMB modem is disabled to conserve battery power, then battery power consumption is reduced, but the DMB service is interrupted
Solution Approach 1:
The system takes preliminary action by disabling the DMB modem before the battery is completely depleted. By detecting voltage threshold violations in advance and proactively shutting down the DMB modem, the system prevents the harmful state of complete battery exhaustion, thereby protecting call service reliability while managing power consumption.
Solution Approach 2:
The voltage threshold mechanism acts as a cushioning protection layer. By setting a safety threshold and disabling the DMB modem before power levels become critical, the system creates a buffer that prevents complete battery depletion and ensures minimum power remains available for essential call services.
3Measurement precision
If the voltage detector continuously monitors battery voltage to ensure adequate power levels, then battery power management accuracy is improved, but the device complexity increases
Solution Approach 1:
The voltage detection and power management functionality is extracted as a separate, dedicated module (voltage detector with threshold comparison logic). This modular extraction simplifies the overall system architecture by isolating the monitoring function from the main DMB modem control, making the system easier to manage while maintaining precise voltage monitoring capability.
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
Effectively secures minimum battery power for call services by dynamically managing battery power consumption, preventing service disruptions and enhancing terminal stability and reliability.
Implementation Method 1
a voltage detector for detecting a voltage of the mobile terminal and disabling the DMB modem if the detected voltage is less than or equal to a threshold
Data Source
AI summary
An apparatus controls battery power in a mobile terminal supporting digital multimedia broadcasting (DMB) service. In the apparatus, first and second radio frequency (RF) signal processors respectively process DMB signals and call signals received through associated antennas. A DMB modem demodulates DMB signals output from the first RF signal processor. A voltage detector detects a voltage of the mobile terminal and disables the DMB modem if the detected voltage is less than or equal to a threshold.