Display Control Device for Sequential Video Output
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Solution Overview
Problem
Existing monitoring systems face challenges in displaying video images from multiple cameras when an alarm signal is generated, leading to increased monitoring load and potential overlooking of monitoring targets.
Innovation Solution
A display control device that acquires video data from multiple cameras, allocates a time order for output based on detected target states, and sequentially outputs target video data to reduce monitoring load and prevent overlooking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If video images from multiple monitoring cameras are displayed simultaneously on a monitor when an alarm signal is generated, then all alarm-related video images can be viewed, but the monitoring load increases and there is a possibility of overlooking monitoring targets
Solution Approach 1:
The patent divides multiple video images into sequential display segments rather than showing them all simultaneously. The display control device segments the video feed by showing one camera's video at a time in a predetermined sequence, allowing comprehensive monitoring while reducing the cognitive load on the monitoring person.
Solution Approach 2:
The patent implements periodic switching between different camera video feeds at predetermined time intervals. Each video image is displayed for a specific duration before automatically switching to the next camera in the sequence, creating a rhythmic, periodic display pattern that reduces monitoring complexity while maintaining coverage of all alarm-related cameras.
2Reliability
If video images from multiple monitoring cameras are switched automatically on a monitor in response to alarm signal generation, then alarm-related videos are prioritized, but videos from a plurality of cameras at the time of alarm generation cannot be displayed
Solution Approach 1:
The patent pre-determines the display sequence and timing for multiple camera video feeds before an alarm occurs. The display control device stores the predetermined sequence of cameras to be displayed and their display timing in advance, so when an alarm happens, the system can immediately execute the pre-planned display sequence without delay or information loss.
Solution Approach 2:
The patent ensures continuous display of alarm-related video information by seamlessly switching between cameras without interruption. The automatic switching mechanism maintains continuous monitoring coverage by transitioning from one camera to the next in the predetermined sequence, ensuring no alarm-related information is lost while prioritizing alarm responses.
3Loss of information
If a large number of video images that have changed are displayed simultaneously, then all changed targets are visible, but the monitoring load increases and overlooking may occur
Solution Approach 1:
The patent segments the display of changed video images by showing them one at a time in a predetermined sequence rather than all at once. The display control device divides the multiple changed video feeds into discrete time segments, presenting each changed target sequentially to the monitoring person, which reduces cognitive overload while ensuring all changes are captured.
Solution Approach 2:
The patent applies periodic display intervals for each changed video image in the sequence. Each changed video feed is displayed for a predetermined time period before automatically transitioning to the next changed target, creating a rhythmic display pattern that improves monitoring efficiency by preventing information overload while maintaining comprehensive coverage of all changes.
Data Source
AI summary
A display control device (10) includes an acquisition unit (11), a control unit (13), and an output unit (18). The acquisition unit (11) acquires video data captured by each of a plurality of image capturing devices from each of the plurality of image capturing devices. In response to detection of a target state of a monitoring target from each of two or more pieces of video data among a plurality of pieces of the video data, the control unit (13) allocates a time order of output to a display device to each of the target video data being the video data in which the target state is detected. The output unit (18) sequentially outputs the target video data to the display device, based on the allocated time order.