Door-Triggered Mobile Terminal Search for Low-Power User Recognition
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Solution Overview
Problem
Existing moving object control systems face challenges in reducing power consumption when recognizing users through communication, which affects energy efficiency.
Innovation Solution
A moving object control device that includes a mobile terminal position recognizing unit, a target door operation recognizing unit, a target identification information recognizing unit, and a communication control unit, which switches between operating and stopped states to optimize communication range and reduce power consumption by searching for mobile terminals within specific ranges based on user proximity and door operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the communication unit continuously operates to search for mobile terminals, then user recognition reliability is improved, but power consumption increases
Solution Approach 1:
The communication unit operates periodically rather than continuously. The control unit switches the communication unit between operating and stopped states at predetermined timings, performing user recognition only when door operation is detected or at scheduled intervals, thereby reducing overall power consumption while maintaining necessary recognition reliability
Solution Approach 2:
The communication unit's operational state is dynamically adjusted based on detected door operations. When door operation is detected, the communication unit is activated to search for mobile terminals; when no door operation is detected, it remains stopped, adapting its activity level to actual user needs
2Measurement precision
If the communication unit searches within a wide range, then user recognition accuracy is improved, but power consumption increases
Solution Approach 1:
The search range is locally optimized based on door operation context. When door operation is detected, the communication unit searches within a first search range outside the vehicle; when door operation is not detected, it searches within a second search range inside and outside the vehicle, concentrating communication resources in the most relevant spatial zones
Solution Approach 2:
The search range parameter is dynamically changed based on door operation state. The control unit adjusts the spatial extent of the communication search according to whether door operation is detected, modifying the coverage area to match the likelihood and location of user presence
3Speed
If the communication unit is activated frequently, then response speed to user approach is improved, but power consumption increases
Solution Approach 1:
The system performs preliminary detection of door operations and activates the communication unit in anticipation of user recognition needs. By detecting door operations first and then activating communication accordingly, the system prepares for user interaction while avoiding unnecessary continuous operation
Solution Approach 2:
The communication unit serves itself by being activated only when necessary conditions (door operation detection) are met. The control unit autonomously manages the communication unit's operational state based on detected conditions, enabling the system to respond to user needs while self-regulating power consumption
Data Source
AI summary
A moving object control device includes a communication control unit configured to switch a first communication unit between an operating state and a stopped state at a predetermined period; and a target identification information recognizing unit configured to: when a target door operation recognizing unit recognizes an operation on a target door, search for a mobile terminal within a first search range in the vicinity of a target seat outside a moving object in a case where the first communication unit is in an operating state; and start up the first communication unit to search for the mobile terminal within a second search range in the vicinity of the target seat inside and outside the moving object in a case where the first communication unit is in a stopped state.