Wireless Endoscope Image Transmission Cycle Synchronization
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Solution Overview
Problem
In wireless endoscope systems, image transmission delays occur due to deteriorated communication quality, leading to increased packet retransmissions and incomplete frame image transmission within the frame period, resulting in delayed image display.
Innovation Solution
An image transmission apparatus with a processor that synchronizes transmission start times with imaging cycles and continues transmission of frame images across subsequent cycles if initial transmission is not completed, potentially skipping image compression for subsequent frames if initial transmission fails, to prevent continuous frame loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If packet retransmission is performed multiple times due to deteriorated communication quality, then transmission reliability is improved, but frame transmission time increases and frame loss occurs
Solution Approach 1:
The system performs preliminary determination of transmission completion status at specific timing points during the frame period. By checking whether all packets (including retransmissions) have been successfully transmitted before the frame period ends, the system can proactively decide to stop further transmissions and display the current frame, preventing time loss while maintaining reliability for successfully transmitted packets
Solution Approach 2:
The transmission completion determination mechanism automatically monitors packet transmission status and autonomously decides when to stop transmission and switch to display mode. This self-service approach eliminates the need for external intervention and ensures timely frame display based on actual transmission completion status
2Reliability
If transmission of frame image is stopped when not completed within frame period, then frame loss is prevented, but image display delay increases
Solution Approach 1:
The system applies partial action by transmitting only the portion of the frame that can be completed within the frame period. If transmission is incomplete by the deadline, the system stops transmission and displays what has been transmitted so far, rather than waiting for complete transmission. This prevents total frame loss while minimizing display delay
Solution Approach 2:
When transmission completion cannot be achieved within the frame period, the system skips the remaining undelivered packets and proceeds to display the frame with available data. This rushing through approach prevents infinite waiting and ensures continuous image display, accepting partial frame data rather than complete loss
3Productivity
If image compression is performed on all frames, then transmission efficiency is improved, but processing time increases and may exceed frame period
Solution Approach 1:
Image compression is performed preliminarily only on frames that are determined to be successfully transmitted within the frame period. By checking transmission completion status first and then applying compression only when necessary, the system avoids unnecessary processing time while maintaining transmission efficiency for frames that need to be delivered on time
Data Source
AI summary
An image transmission apparatus includes an imaging device, wireless communication equipment and at least one processor. The processor determines whether the wireless communication equipment is able to complete transmission of a first frame image within a transmission period corresponding to a first imaging cycle. The processor controls the wireless communication equipment to continue transmission of the first frame image in a transmission period of a second frame image output from the imaging device in a second imaging cycle when the processor determines that the wireless communication equipment is not able to complete transmission of the first frame image.