Handheld Scanner Vision Processor Mode Adaptation
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Solution Overview
Problem
Traditional barcode readers lack efficiency in processing imaging data due to the absence of a mechanism to detect transitions between different modes of usage, leading to ineffective handling of varying functionalities.
Innovation Solution
An imaging device configured to operate in multiple modes, including handheld and presentation modes, with a vision application processor that processes imaging data differently based on the operation mode, activating and processing imager streams accordingly, and utilizing sensors to determine the mode of operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the imaging device processes all imager streams continuously regardless of mode, then no data is lost, but power consumption increases and processing efficiency decreases
Solution Approach 1:
The system dynamically adjusts the processing strategy based on the detected operation mode. In handheld mode, it processes imager streams based on trigger events, while in presentation mode, it continuously processes the second imager stream. This dynamic adaptation resolves the contradiction by optimizing power consumption and processing efficiency according to the actual usage scenario.
Solution Approach 2:
The system changes the processing parameters (continuous vs. event-based) based on the operation mode. By detecting whether the device is in handheld or presentation mode, it switches between different processing regimes, thereby resolving the trade-off between energy loss and productivity.
2Adaptability or versatility
If the imaging device uses a single processing strategy for all modes, then the system is simple, but it cannot adapt to different usage scenarios leading to inefficiency
Solution Approach 1:
The processing logic is segmented into different strategies for different operation modes. The system divides the processing approach into handheld mode processing (event-based) and presentation mode processing (continuous), allowing adaptability without requiring a completely complex unified system.
Solution Approach 2:
The imaging device is designed with multi-functionality to handle both handheld and presentation modes. By incorporating a single device that can perform multiple functions with mode-specific processing, it achieves adaptability while keeping the overall device structure unified rather than requiring separate systems for each mode.
3Reliability
If the first imager is activated continuously in handheld mode, then no barcode data is missed, but power consumption increases
Solution Approach 1:
Instead of continuous activation, the first imager is activated periodically or event-based on trigger events in handheld mode. This periodic action ensures that barcode data is captured reliably when needed while reducing power consumption by keeping the imager inactive during non-scanning periods.
Solution Approach 2:
The system uses the second imager stream to detect trigger events that automatically activate the first imager only when needed. This self-service mechanism ensures reliable barcode reading by activating the first imager in response to detected events, while avoiding unnecessary power consumption from continuous activation.
Data Source
AI summary
Imaging devices, systems, and methods for identifying an operation mode of an imaging device and processing imaging data based on the operation mode are described herein. An example device includes: a first imager operable to receive light from a first field of view (FOV) and configured to capture a first imager stream, a second imager operable to receive light from a second FOV and configured to capture a second imager stream, and a vision application processor that: processes at least a portion of the first imager stream and at least a portion of the second imager stream based on at least one of a commencement of a read session, a trigger event, or a decode event; and processes the second imager stream without regard to any of the read session, the trigger event, or the decode event, and process the first imager stream based on the second imager stream.