Grain Sampling Imaging Device with Sealed Observation Window
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Solution Overview
Problem
Traditional grain sampling and imaging methods are labor-intensive, subjective, and prone to grain breakage, with machinery-based systems being large, power-dependent, and susceptible to lens contamination, which affects accuracy in grain quality detection.
Innovation Solution
A grain sampling and imaging device that integrates a sealed camera lens within an observation passage, utilizing a multi-stage restricting port and separation passages for continuous random sampling, allowing real-time imaging and data analysis while preventing lens contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a camera lens is exposed during imaging to capture grain samples, then imaging quality is improved, but the lens is contaminated by impurities in the grains resulting in misjudgment
Solution Approach 1:
The camera lens is nested inside the observation passage, which is itself nested within the sampling body. This nested structure allows the lens to be protected from direct contact with grains while still enabling imaging through the observation window, thus preventing contamination while maintaining imaging quality.
Solution Approach 2:
The observation passage acts as an intermediary structure between the camera lens and the grains. The passage provides a controlled environment that allows light to reach the lens for imaging while blocking direct contact between grains and the lens, thus serving as a mediator that enables imaging without contamination.
2Extent of automation
If machinery-based grain detection devices are used to automate sampling, then labor intensity is reduced, but the device size increases and requires additional external power sources
Solution Approach 1:
The device merges the sampling function and imaging function into a single integrated structure. The sampling body simultaneously performs grain sampling and provides the observation passage for imaging, eliminating the need for separate machinery components and reducing overall device complexity.
Solution Approach 2:
The sampling body serves multiple functions: it acts as the grain sampling structure, contains the observation passage for imaging, and provides the discharge outlet for grain release. This multi-functionality reduces the need for additional components and external power sources.
3Device complexity
If manual sampling methods are used for grain detection, then device complexity is minimized, but labor intensity increases and subjectivity in detection occurs
Solution Approach 1:
The device enables self-service operation where grains automatically flow through the sampling body and discharge outlet without manual intervention. The continuous random sampling occurs automatically as grains pass through the observation passage, eliminating the need for manual sampling operations.
Data Source
AI summary
In a grain sampling and imaging device, a grain bin (1) is located under a sampling body (5), a grain feed connector (4) is fixed to a top of the sampling body (5), an observation window (2) is installed on the sampling body (5), a camera (3) is installed above the observation window (2); grains fall to a grain feed connector (4), and then into the sampling body (5), and then are sieved by multiple passages of the sampling body (5), a part of the grains randomly enter the observation window (2) and photographed by the camera (3), and finally all of the grains enter the grain bin (1) through a discharge outlet (5.1) provided at a bottom of the sampling body (5).