Watch Mobile Terminal Real-Time Image Retrieval from Vehicle Recorder
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Solution Overview
Problem
There is a need for a method to obtain and provide video or images recorded by a vehicle accident recording device in real-time based on user state changes, particularly for a watch-type mobile terminal, as existing systems do not efficiently support real-time retrieval and notification of critical events during vehicle operation.
Innovation Solution
A watch-type mobile terminal equipped with a sensing unit, communication unit, and controller that transmits an image request signal to a vehicle accident recording device upon detecting a user state change, and provides a notification upon receiving the corresponding image, which can be a moving or still image related to the state change, along with place information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle accident recording device continuously records and stores all events, then the completeness of recorded events is improved, but the device complexity and energy consumption increase
Solution Approach 1:
The system pre-arranges communication channels and protocols between the watch-type terminal and the recording device. When a state change is detected, the terminal immediately requests and receives relevant recorded events without needing to process all stored data, thus reducing complexity while maintaining reliability
Solution Approach 2:
Instead of processing all recorded events, the system extracts only the specific events related to the detected state change. The watch terminal requests and receives only the relevant subset of recorded events, reducing data processing complexity while ensuring reliability for critical events
2Measurement precision
If the watch-type terminal continuously monitors user state, then the detection accuracy of state changes is improved, but the energy consumption increases
Solution Approach 1:
The sensing unit performs periodic state monitoring at predetermined intervals rather than continuous monitoring. This periodic detection maintains adequate measurement precision for critical state changes while significantly reducing energy consumption compared to continuous monitoring
Solution Approach 2:
The system uses feedback from the sensing unit to trigger image requests only when state changes are detected. This feedback mechanism ensures high detection accuracy for critical events while avoiding unnecessary energy consumption from continuous operation, as the system remains dormant until a state change triggers action
3Speed
If the system transmits image request signals immediately upon state change detection, then the real-time capability is improved, but the communication overhead increases
Solution Approach 1:
The watch terminal extracts and transmits only the essential request information needed to retrieve specific recorded events, avoiding transmission of unnecessary data. This minimizes communication overhead while maintaining fast retrieval speed for critical events
Solution Approach 2:
The system uses an intermediary communication protocol that efficiently packages request and response data. The controller mediates between the sensing unit and communication unit, optimizing the data exchange format to reduce communication overhead while enabling rapid image retrieval
Data Source
AI summary
Disclosed are a mobile terminal of a watch type and controlling method thereof. The present invention includes a display unit, a sensing unit, a communication unit configured to transmit/receive a signal with a vehicle accident recording device, and a controller controlling the display unit, the sensing unit and the communication unit, wherein if a state change of a user is sensed, an image request signal for requesting an image is transmitted to the vehicle accident recording device, wherein the image corresponds to at least one of a moving image and a still image corresponding to a first time point of sensing the state change, and wherein if the image is received from the vehicle accident recording device, a notification indicating that the image is received is provided. Accordingly, a photographed image is received from a vehicle accident recording device in case of sensing user's state change.