Traveling Speed Control for Remote Monitoring Video Quality
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Solution Overview
Problem
Existing remote monitoring systems for automatic vehicles do not effectively control traveling speed to ensure accurate remote monitoring when video quality is deteriorated, leading to inefficiencies and prolonged monitoring gaps.
Innovation Solution
A traveling speed control apparatus that monitors video quality and calculates a maximum allowable traveling speed based on the video quality and monitoring requirements, then controls the vehicle speed to ensure accurate remote monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle speed is reduced when communication state is insufficient, then the video data transmission can be completed within the data transmission period, but the traveling efficiency is deteriorated when speed is reduced more than necessary
Solution Approach 1:
The patent dynamically adjusts the vehicle speed parameter based on communication state measurements. The speed control unit changes the speed parameter in response to detected communication conditions, optimizing both transmission reliability and traveling efficiency by avoiding excessive speed reduction.
Solution Approach 2:
The patent implements a feedback mechanism where the speed control unit receives information about communication state and video data transmission status, then adjusts the vehicle speed accordingly. This closed-loop control ensures speed is reduced only to the extent necessary for reliable transmission.
2Productivity
If the vehicle speed is not reduced sufficiently when communication state is insufficient, then the traveling efficiency is maintained, but the deceleration is required again and the period in which the vehicle cannot be appropriately monitored remotely becomes long
Solution Approach 1:
The system dynamically adjusts the speed parameter based on real-time communication state assessment. When communication conditions deteriorate, the speed is reduced to ensure video data can be transmitted reliably within the data transmission period, preventing monitoring gaps.
Solution Approach 2:
The speed control unit continuously monitors communication state and adjusts vehicle speed in response. This feedback mechanism prevents the need for repeated deceleration by maintaining appropriate speed levels throughout the transmission period.
3Measurement precision
If the video quality is maintained at high level, then the remote monitoring accuracy is improved, but the communication bandwidth requirement increases
Solution Approach 1:
The patent dynamically adjusts video quality parameters (resolution, frame rate, bitrate) based on available communication bandwidth. The system adapts video encoding parameters in real-time to match network conditions, maintaining monitoring accuracy when bandwidth is available while reducing requirements when bandwidth is limited.
Solution Approach 2:
The system changes video quality parameters such as resolution, frame rate, and bitrate in response to communication state. This allows the system to optimize the balance between monitoring accuracy and bandwidth consumption based on current network conditions.
Data Source
AI summary
A server receives video data from a moving body. A traveling speed control apparatus controls a traveling speed of the moving body. A quality monitoring unit monitors video quality of the video data received by the server. A speed upper limit calculation unit calculates, by using the video quality and a monitoring required condition of the video data, a maximum value of a traveling speed satisfying the monitoring required condition as an upper limit value of a traveling speed of the moving body. A speed control unit controls a traveling speed of the moving body to be equal to or lower than the calculated upper limit value.