Bicycle Camera Pre-Recording Buffer for Event Capture
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Solution Overview
Problem
Existing bicycles struggle to reliably and completely record special driving events occurring during a ride, as the camera device typically only starts recording after the event has begun, missing crucial initial moments.
Innovation Solution
A bicycle equipped with a camera device that permanently records during a ride, storing recordings in a permanent memory module. A trigger signal can activate a recording sequence stored in time immediately before the signal, allowing for the selection and sharing of relevant driving event recordings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the camera device starts recording only when an event is detected, then energy consumption is reduced and storage space is preserved, but the beginning of the event is not recorded
Solution Approach 1:
The system continuously pre-records a fixed time window (e.g., 5 seconds) before the trigger event occurs. This preliminary recording ensures that when an event is detected by the sensor device, the camera has already captured the initial moments leading up to the event, thus resolving the contradiction between energy efficiency and event completeness.
2Reliability
If the camera device permanently records during the entire ride, then all events are completely recorded, but energy consumption and storage space are wasted
Solution Approach 1:
Instead of continuous permanent recording, the system implements preliminary recording of a fixed duration before event detection. This approach ensures complete event capture while significantly reducing energy consumption and storage requirements compared to continuous recording throughout the entire ride.
Solution Approach 2:
The system records slightly more data than strictly necessary by maintaining a continuous buffer of pre-event footage. This partial excessive action ensures that no part of the event is missed while allowing the system to stop recording immediately after the event concludes, optimizing both energy efficiency and recording completeness.
3Quantity of substance
If the recording memory stores only future events, then storage space is optimized, but past events cannot be reviewed
Solution Approach 1:
The recording memory continuously stores a time-synchronized buffer of video and sensor data before trigger events occur. This preliminary storage action enables the system to retrieve and review complete past events with their contextual lead-in footage, resolving the contradiction between storage optimization and event review capability.
Data Source
Figure 1
AI summary
1.Bicycle with a bicycle frame (12), a rear wheel (18) and a front wheel (20), wherein the rear wheel (18) und the front wheel (20) are rotatably mounted on the bicycle frame (12), a camera device (40) for recording the bicycle environment during a ride, a sensor device (42) for detecting riding data, and a recording memory device (46) for storing recordings recorded by the camera device (40) and the temporally associated travel data recorded by the sensor device (42), wherein the camera device (40) records permanently during a ride and the recordings are stored in a permanent memory module (50) of the recording memory device (46), wherein the recording memory device (46) is configured in such a way that, based on a trigger signal, a recording sequence stored in time immediately prior to the trigger signal is stored with the associated ride data in a selection memory module (52).