Mobile Vehicle Control Stop Logic for Sleep-State Transitions
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Solution Overview
Problem
Existing vehicle control systems face issues where a mobile device transitioning to a sleep or background state restricts user operations, leading to uncontrollable vehicle components continuing to operate against the user's intention.
Innovation Solution
A vehicle control system with a mobile device capable of detecting and transitioning to a restricted operating state, including a stop processing unit that sends an operation stop signal to prevent continued operation of vehicle components, and a vehicle-side monitoring unit that stops the components upon communication disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the mobile device transitions to a sleep state or background execution state to save energy and reduce user operation restrictions, then energy consumption is reduced and ease of operation is improved, but the control object may continue to operate against the user's intention leading to loss of control
Solution Approach 1:
The system performs preliminary action by detecting the transition to sleep state or background execution state before the control object completes its operation. The stop signal is transmitted proactively to prevent unintended continuous operation, ensuring control reliability is maintained even when the mobile device enters a restricted state
Solution Approach 2:
The system establishes feedback by having the vehicle control unit monitor the operational state of the control object and communicate with the mobile device. When the mobile device transitions to a restricted state, the feedback mechanism ensures the control object is stopped, and when the device returns to foreground state, the system can resume normal control, maintaining reliability through continuous state monitoring
2Ease of operation
If the mobile device transitions to a sleep state or background execution state, then ease of operation is improved, but loss of time occurs due to requiring time to return from sleep state
Solution Approach 1:
The system performs preliminary action by detecting the transition to sleep state or background execution state before the control object completes its operation. The stop signal is transmitted proactively to prevent unintended continuous operation, ensuring control reliability is maintained even when the mobile device enters a restricted state
Solution Approach 2:
The system implements self-service by automatically detecting when the mobile device transitions to a restricted state and autonomously transmitting stop signals to the control object without requiring user intervention. The system also automatically resumes control when the device returns to foreground state, eliminating the need for manual time-consuming operations
3Ease of operation
If the stop signal transmission is delayed until the mobile device returns to foreground state, then ease of operation is maintained, but the control object continues to operate longer than necessary causing loss of time
Solution Approach 1:
The system performs preliminary action by detecting the transition to sleep state or background execution state before the control object completes its operation. The stop signal is transmitted proactively to prevent unintended continuous operation, ensuring control reliability is maintained even when the mobile device enters a restricted state
Data Source
AI summary
A vehicle control system includes: a vehicle control unit that remotely controls a PW, which is a control object, based on a signal from a mobile device; a mobile-side stop processing unit that performs stop process for stopping the PW upon transition to a predetermined operation state in which user operations are restricted while the PW is in operation by the remote control.