Video Distribution Apparatus Tally Lamp Control Logic
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Solution Overview
Problem
In video distribution systems, it is challenging for a single user to switch videos and change camera angles effectively, especially when multiple remote controllers are involved, leading to the risk of unintended video distribution due to erroneous operations.
Innovation Solution
An information processing apparatus with a reception unit for receiving control instructions, an acquisition unit for acquiring state information on video distribution, and a control unit that prevents processing based on predetermined states, such as a tally lamp indicating video distribution status, to prevent unintended operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple remote controllers are used to control camera operations, then ease of operation is improved, but reliability deteriorates due to risk of unintended video distribution
Solution Approach 1:
The system continuously monitors the distribution state through feedback from the switcher and uses this information to control whether remote control operations are accepted. The reception unit receives control instructions, the acquisition unit obtains distribution state information from the switcher, and the control unit compares these to determine if operations should be executed, preventing unintended changes during active distribution.
Solution Approach 2:
The control system dynamically adjusts its behavior based on the distribution state. When the video is being distributed, the control unit disables remote control operations. When distribution is not active, remote control operations are enabled. This dynamic state-dependent control resolves the contradiction by allowing ease of operation only when safe.
2Device complexity
If a single user controls both video switching and camera angle changes, then device complexity is reduced, but reliability deteriorates due to operational conflicts
Solution Approach 1:
The control functions are segmented between different users based on the distribution state. During active distribution, only the switcher operator can control video switching, while remote control operations are blocked. During non-distribution periods, the remote controller operator can perform camera angle changes. This segmentation prevents operational conflicts while maintaining simplicity.
Solution Approach 2:
The control unit acts as an intermediary between the remote controller and the camera. It receives control instructions from the remote controller, checks the distribution state through the acquisition unit, and mediates whether to execute the operations. This intermediary layer prevents direct conflicts between switching and camera control operations.
3Ease of operation
If remote control operations are always enabled, then ease of operation is improved, but harmful factors increase due to erroneous operations during distribution
Solution Approach 1:
The system takes preliminary anti-action by preventing remote control operations from being executed when the video is being distributed. The control unit checks the distribution state before allowing operations, and blocks potentially harmful operations in advance during active distribution periods, eliminating erroneous operations before they can occur.
Solution Approach 2:
The system converts the potential harm of always-enabled remote control into a benefit by using the distribution state information to intelligently enable or disable operations. The acquisition unit obtains distribution state information, and the control unit uses this to selectively allow operations only when safe, transforming a potentially harmful situation into a controlled and beneficial system behavior.
Data Source
AI summary
A video distribution apparatus (corresponding to an information processing apparatus) is provided with a light emitting diode (LED) (a tally lamp) for indicating whether a video is selected as a video being distributed or a video in a standby state by a switcher, which receives the video. In a case where a control command is received from an infrared remote controller (corresponding to an external device), the video distribution apparatus determines whether the LED (the tally lamp) is in an ON state or an OFF state. In a case of the ON state, the video distribution apparatus disables a control command from the infrared remote controller. In a case of the OFF state, the video distribution apparatus performs processing according to the control command from the infrared remote controller.