Image Data Transfer Processor Time-Sharing Control
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Solution Overview
Problem
Conventional surveillance camera systems are limited in processing image signals of varying sizes, require multiple cameras with the same format, and result in unnecessary power consumption due to constant operation of all cameras, even when not all image signals are selected for output.
Innovation Solution
An image data transfer processor with an image data processing unit, multi-codec unit, communication unit, time-sharing management unit, and transfer data selecting unit that converts and manages image signals to accommodate different sizes and formats, and controls camera operation based on transfer requests, allowing for time-sharing operation and selective camera activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple cameras with the same format are used to ensure compatibility, then the system can process image signals, but the versatility is reduced and power consumption increases due to constant operation
Solution Approach 1:
The system dynamically controls camera operation based on transfer requests. The time-sharing management unit activates only the camera whose image signal is currently being transferred, while putting other cameras in a stopped state. This dynamic activation/deactivation mechanism resolves the contradiction by adapting camera operation to actual demand, reducing power consumption while maintaining versatility through on-demand format switching.
Solution Approach 2:
The system uses periodic time-sharing control to switch between multiple cameras with different formats. Instead of continuously operating all cameras, the time-sharing management unit periodically activates specific cameras based on transfer requests, allowing the system to handle various camera formats while reducing overall power consumption through intermittent operation.
2Reliability
If all cameras are constantly driven to ensure image signal availability, then the system can respond to any transfer request, but unnecessary power consumption occurs
Solution Approach 1:
The time-sharing management unit implements dynamic control by activating only the specific camera needed for the current transfer request. This dynamic approach maintains reliability because the required camera is activated on-demand, while simultaneously reducing power consumption by keeping other cameras in a stopped state rather than continuously operating them.
Solution Approach 2:
The system uses the transfer request itself to trigger camera activation. When a transfer request arrives, the time-sharing management unit automatically activates the corresponding camera, eliminating the need for continuous operation. This self-service mechanism ensures image signal availability only when needed, resolving the contradiction between reliability and power consumption.
3Device complexity
If a fixed image data size is used for processing, then the processing is simpler, but the system cannot accommodate different terminal device display requirements
Solution Approach 1:
The image data processing unit dynamically changes the output image data size based on the terminal device's display capabilities. When a transfer request includes terminal device information, the processing unit adjusts the image dimensions to match the terminal's screen resolution. This parameter adaptation resolves the contradiction by modifying image size on-demand, maintaining simplicity through standardized processing pipelines while achieving versatility through flexible output sizing.
4Adaptability or versatility
If multiple cameras with different formats are used to increase versatility, then the system can support various terminal devices, but the device complexity increases due to format management
Solution Approach 1:
The time-sharing management unit dynamically selects and activates only the camera with the format needed for the current transfer request. This dynamic selection approach allows the system to support multiple camera formats and terminal devices while managing complexity by activating only one camera at a time, rather than simultaneously managing all camera formats.
Solution Approach 2:
The image data processing unit is designed with multi-functionality to process image data from various camera formats. By implementing a universal processing pipeline that can handle different formats through parameter adjustment rather than dedicated processing paths for each format, the system achieves format diversity support while keeping device complexity manageable.
Data Source
AI summary
An image data processor converts an image signal into an image data. The multi-codec unit converts the image data into a transfer data. A communication unit receives a transfer request from an outside terminal device and transmits the transfer data to the outside terminal device. A time-sharing control unit controls to drive the image data processor and the multi-codec unit in a time-sharing manner in accordance with the transfer request. A transfer data selecting unit for selecting the transfer data corresponding to the transfer request from a group of the transfer data generated by the image data processing unit and the multi-codec unit which are controlled to drive in the time-sharing manner by the time-sharing management unit, and transmitting the selected transfer data to the communication unit.