Vehicle Frequency Scanning Control for Sleep-Mode Battery Conservation
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Solution Overview
Problem
Existing frequency scanning methods for mobile communication networks are not suitable for vehicles with limited mobility, leading to unnecessary operations and battery discharge when the engine is turned off.
Innovation Solution
An apparatus and method that control frequency scanning in a vehicle's sleep mode by detecting vehicle mode information, stopping the scanning when the engine is off, and resuming it when the engine is turned on, thereby minimizing unnecessary scans and extending battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency scanning is performed for each supported band according to mobile communication standards, then network coverage and signal quality are improved, but battery consumption increases and battery life decreases
Solution Approach 1:
The patent applies dynamics by making the frequency scanning operation conditional rather than static. The scanning is dynamically enabled or disabled based on the vehicle's mobility state detected by the GPS receiver. When the vehicle is detected to be stationary for a predetermined period, the scanning operation is disabled, adapting the system behavior to the current operational context and reducing unnecessary energy consumption.
Solution Approach 2:
The patent changes the operational parameter of frequency scanning from a continuous mandatory operation to a conditional operation based on mobility detection. By monitoring GPS position data over time and detecting when the vehicle remains stationary beyond a threshold period, the system changes the scanning parameter state (enabled/disabled) to optimize battery usage while maintaining network connectivity when needed.
2Reliability
If frequency scanning is continuously performed to maintain network connectivity, then communication reliability is improved, but unnecessary operations occur when the vehicle is stationary, wasting energy
Solution Approach 1:
The system dynamically adjusts the frequency scanning operation based on real-time detection of vehicle mobility status. When GPS data indicates the vehicle has been stationary for a predetermined period, the system transitions to disabling the scanning operation, thereby eliminating unnecessary energy waste while maintaining communication reliability during periods of actual mobility.
Solution Approach 2:
The system performs self-service by automatically detecting its own mobility state through GPS position monitoring and autonomously deciding whether to enable or disable frequency scanning operations. This self-adjustment mechanism eliminates the need for manual configuration and ensures energy-efficient operation based on actual usage conditions.
3Use of energy by stationary object
If the vehicle enters sleep mode with the engine turned off, then power consumption is reduced, but frequency scanning operations continue to drain the battery
Solution Approach 1:
The system dynamically responds to the vehicle's power state by detecting when the engine is turned off and the vehicle enters sleep mode. In this state, combined with stationary detection via GPS, the system disables frequency scanning operations to prevent battery drain, thereby achieving further power consumption reduction beyond what sleep mode alone provides.
Solution Approach 2:
The system takes preliminary action by monitoring GPS position data continuously to detect when the vehicle becomes stationary before the engine is turned off. This advance detection allows the system to prepare for sleep mode by pre-disabling frequency scanning operations, ensuring no unnecessary battery drain occurs during the transition to and during sleep mode.
Data Source
AI summary
An apparatus for controlling frequency scanning in a sleep mode of a vehicle and a method thereof. The apparatus includes an input unit configured to receive vehicle mode information, a memory configured to store a program controlling the frequency scanning according to the vehicle mode information, and a processor configured to execute the program, and the processor stops the frequency scanning when the vehicle mode information is the sleep mode.