Intelligent Grading Machine Trajectory Tracking Sensor Network

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Solution Overview

Problem

Conventional grading machines are inefficient and inaccurate in sorting objects into multiple grades due to limitations in tracking the accurate position of moving objects and actuation of ejectors, often requiring multiple passes and being restricted to binary or limited quality classes.

Innovation Solution

A novel intelligent grading machine with a trajectory tracking sensor network that continuously tracks the trajectory of objects using multiple cameras, sensors, and angled ejectors to sort objects into multiple grades in a single pass based on external characteristics, eliminating the need for multiple passes and enabling grading of various objects into multiple commercial grades.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional sorting machines use binary classification with limited tracking, then the system complexity is low, but the grading precision and productivity are insufficient due to requiring multiple passes

Engineering Contradiction:
Improvegrading throughputVSAvoidobject position tracking accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The patent transitions from binary classification to multi-grade classification by adding dimensional complexity to the grading system. Multiple sensor layers (first, second, and third sensor networks) are arranged at different positions along the conveyor to detect objects at multiple stages, enabling classification into multiple grades (first grade, second grade, third grade) simultaneously in a single pass, thereby improving productivity without sacrificing tracking precision.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The system employs continuous feedback through multiple sensor networks that track object trajectories in real-time. The first sensor network detects initial object positions, the second sensor network monitors intermediate positions, and the third sensor network confirms final positions. This multi-stage feedback mechanism enables accurate real-time positioning and precise ejection control for multiple grades simultaneously.

Inventive Principle:
Principle #23Feedback

2Measurement precision

If multiple passes are used for accurate multi-grade sorting, then measurement precision improves, but loss of time increases and productivity decreases

Engineering Contradiction:
Improvegrading accuracyVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary classification actions at multiple stages before final ejection. The first sensor network performs preliminary detection of object characteristics, the second sensor network performs preliminary positioning, and only then is the final ejection decision made. This preliminary multi-stage action enables accurate multi-grade sorting to be completed in a single pass rather than requiring multiple sequential passes.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The grading process operates continuously in a single pass rather than intermittently across multiple passes. Objects move continuously along the conveyor while being detected by multiple sensor networks simultaneously, and ejection decisions are made continuously based on real-time sensor data. This continuous useful action eliminates the time loss associated with stopping and restarting between passes.

Inventive Principle:
Principle #20Continuity of useful action

3Adaptability or versatility

If a single ejection point is used, then the device complexity is low, but the adaptability for multiple grades is limited

Engineering Contradiction:
Improvemulti-grade classification capabilityVSAvoidejection system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The ejection system is segmented into multiple independent ejection points (first ejection point, second ejection point, third ejection point) corresponding to different grades. Each ejection point is controlled by its own actuator based on signals from the sensor networks. This segmentation enables the system to handle multiple grades simultaneously while keeping each individual ejection mechanism relatively simple.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sensor network system serves multiple functions: it detects object characteristics, tracks object trajectories, determines grading decisions, and controls multiple ejection points. This multi-functional universal system enables adaptability for multiple grades without proportionally increasing overall device complexity, as the same sensor infrastructure supports all classification and control functions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Manufacturing precision

If trajectory tracking is not implemented, then the ease of operation is high, but the manufacturing precision of sorting positions is poor

Engineering Contradiction:
Improveejection position accuracyVSAvoidsensor network complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

Sensor networks act as intermediaries between the moving objects and the ejection system. The first, second, and third sensor networks continuously measure object positions and trajectories, providing real-time positional information to the control system. This intermediary measurement capability enables precise ejection positioning without requiring direct mechanical coupling or complex mechanical positioning mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system replaces mechanical positioning mechanisms with optical/electronic sensor-based trajectory tracking. Instead of using complex mechanical systems to physically track and position objects, the patent uses sensor networks to optically/electrically detect object positions and trajectories, then uses this information to control ejection timing and positioning. This substitution achieves high precision while reducing mechanical complexity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The machine achieves efficient, accurate, and cost-effective grading of objects into multiple grades by precisely tracking object trajectories and using multi-angled ejectors to direct objects into corresponding collecting locations, enhancing the grading process's efficiency and expanding the scope of objects that can be graded.

Implementation Method 1

continuously tracking the trajectory of objects with sensor network

Methodology Applied
Scientific EffectElectromagnetic radiation detection: Photoelectric Effect

Implementation Method 2

a jet of a predefined duration is expelled by the ejectors towards the object

Methodology Applied
Scientific EffectFluid pressure and flow: Pressure Gradient

Data Source

PatentEP3271082B1A novel intelligent grading machine with trajectory tracking sensor network and a process therefor
Publication Date: 2020.05.06 NANOPIX INTEGRATED SOFTWARE SOLUTIONS
  • EP3271082B1 patent drawingFigure 1
  • EP3271082B1 patent drawingFigure 2
  • EP3271082B1 patent drawingFigure 3

AI summary

The present invention disc loses a novel intelligent and multi-channeled grading machine with trajectory tracking sensor network for grading objects into multiple grades in a single pass based on external characteristics viz. size, shape, color, texture, surface, properties or any other possible external characteristics by continuously tracking the trajectory of objects. The novel grading machine comprises of hopper: at least one feeding unit; multiple optics units multiple conduits; multiple sensor networks in multiple conduits; at least one master controller; at least one ejector unit comprising of arrays of single-angled or multiple angle ejectors in each conduit; multiple vacuum creators placed respectively opposite to each ejector; multiple collecting chutes; and multiple collecting locations. The novel grading machine is extremely simple, accurate, and automated, power-efficient and cost-effective. The present invention also discloses a novel process for grading objects into multiple grades i n a single pass by continuously tracking the trajectory of objects based on external characteristics.