Excavator Soil Quality Sensing With Event-Driven Acquisition Timing
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Solution Overview
Problem
Existing soil quality information acquisition systems for working machines require large storage capacity due to periodic detection at predetermined time intervals, leading to inefficiencies in data management.
Innovation Solution
A soil quality information acquisition system that includes a position information acquisition part, an acquisition time determination part, and a storage part, which determines optimal times for acquiring soil quality information based on changes in soil quality, position, and climate, reducing the need for excessive storage capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If soil quality information is detected at predetermined time intervals, then soil quality information can be acquired continuously, but the storage part needs large capacity to store the information
Solution Approach 1:
The patent implements dynamic acquisition timing based on real-time detection of soil quality changes. The system transitions from static periodic acquisition to dynamic event-driven acquisition, where the acquisition frequency adapts to actual soil quality variations. When soil quality changes are detected, acquisition is triggered; when stable, acquisition is suspended, thereby reducing unnecessary data storage while maintaining reliability.
Solution Approach 2:
The system employs feedback mechanisms where detection results are fed back to the acquisition control unit. This feedback loop enables the system to learn from previous detections and adjust future acquisition timing accordingly. The feedback mechanism ensures that acquisition occurs only when necessary, optimizing the balance between information reliability and storage requirements.
2Loss of information
If soil quality information is acquired continuously, then sufficient data availability is ensured, but excessive data accumulation occurs
Solution Approach 1:
The patent implements periodic action through time-based acquisition scheduling combined with event-driven triggers. The system performs acquisition at predetermined time intervals while also responding to detected soil quality changes. This dual periodic action mechanism ensures data availability without excessive accumulation by avoiding redundant acquisitions during stable periods.
Solution Approach 2:
The system dynamically changes acquisition parameters based on detected soil quality characteristics. When soil quality is stable, the acquisition frequency parameter is reduced or suspended. When changes are detected, the parameter is adjusted to increase acquisition frequency. This parameter adaptation prevents both data loss and excessive accumulation.
3Quantity of substance
If acquisition timing is determined based on soil quality changes, then storage requirements are reduced, but the complexity of determining optimal acquisition time increases
Solution Approach 1:
The patent segments the acquisition time determination function into distinct modular components: a detection unit that monitors soil quality, a determination unit that analyzes changes and decides on acquisition timing, and an execution unit that performs the actual acquisition. This segmentation reduces overall system complexity by making each component independent and easier to implement.
Solution Approach 2:
The system performs preliminary detection and analysis of soil quality trends before triggering acquisition. The determination unit pre-evaluates detection data to predict when acquisition is necessary, avoiding reactive acquisition only. This preliminary action simplifies the overall control logic by establishing clear criteria for acquisition timing before the actual acquisition occurs.
Data Source
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AI summary
Provided are a soil quality information acquisition system that enables acquisition of soil quality information at an appropriate time on a worksite, and a working machine including the system. The soil quality information acquisition system (100) includes a body position detection part (33), an acquisition time determination part (503), a soil quality information acquisition part (502), and a storage part (506). The body position detection part (33) acquires position information about a hydraulic excavator (1) on the worksite. The acquisition time determination part (503) determines an acquisition time on the basis of soil quality relevant information being information related a change in a quality on the worksite. The soil quality information acquisition part (502) receives an acquisition signal output from the acquisition time determination part (503), and acquires the soil quality information in response to the acquisition signal. The storage part (506) stores the position information and the soil quality information in association with each other.