Work Machine Event Capture via Triggered Buffering
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Solution Overview
Problem
Work machines, such as dozers and excavators, often experience costly operational and non-operational events that require quick identification and remediation, but operators lack immediate insight into these events due to time pressures on job sites.
Innovation Solution
A system with input devices, controllers, and wireless communication modules that capture and transmit event data from various sensors and sources, including cameras and microphones, using triggers to save buffered information for analysis, enabling comprehensive event capture and security monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If event information is captured continuously and comprehensively, then the completeness of event data is improved, but the storage requirements and system complexity increase
Solution Approach 1:
The system continuously buffers event information in advance before actual events occur. This preliminary action ensures that when an event is detected via trigger, the information is already captured and ready for immediate saving, eliminating the need for complex real-time processing during events while maintaining complete information capture
Solution Approach 2:
The patent extracts only the essential buffered information related to detected events for saving and transmission, rather than continuously storing all possible data. This selective extraction reduces storage requirements and system complexity while maintaining the completeness of relevant event information
2Loss of time
If event data is transmitted immediately upon detection, then the response time is improved, but the communication bandwidth and energy consumption increase
Solution Approach 1:
The system prepares event information in advance by continuously buffering data in memory before events occur. When events are detected, the pre-prepared information can be immediately transmitted without processing delays, achieving fast response while the buffering mechanism allows for efficient batch transmission that reduces overall energy consumption
Solution Approach 2:
The system uses trigger-based periodic transmission rather than continuous transmission. Information is transmitted at specific intervals triggered by detected events, which maintains rapid response capability for actual events while significantly reducing communication bandwidth usage and energy consumption during normal operation
3Measurement precision
If multiple sensors and input devices are used to capture events, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple input devices and sensors into a unified event capture system with a single controller that coordinates them all. This consolidation maintains the measurement precision benefits of multiple sensors while reducing overall system complexity through integrated control and unified data processing
Solution Approach 2:
The controller serves multiple functions: it manages input devices, buffers event information, detects triggers, saves data, and transmits information. This multi-functionality reduces the need for separate dedicated components for each function, thereby maintaining high measurement precision while reducing overall device complexity
Data Source
AI summary
A work machine includes at least one input device configured to generate input information. A controller is coupled to the input device(s) and is configured to store the input information in a buffer. The controller is configured to detect a trigger and responsively save at least a portion of contents of the buffer to memory. A wireless communication module is coupled to the controller and is configured to transmit an external capture signal when the controller detects the trigger.