Projection Instruction Device for Parcel Sorting Accuracy
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Solution Overview
Problem
The increasing volume of parcel circulation and diversity of parcel types pose challenges for effective and precise sorting, as manual sorting is inefficient and prone to errors, and existing automated systems are not adequately equipped to handle the rising demand.
Innovation Solution
A parcel sorting system comprising a label reader, distance image sensor, instruction projecting device, and projector that reads parcel identification information, determines the parcel's position, and projects instructions onto the parcel to guide sorting, allowing for precise and efficient sorting by projecting arrows or other directional cues based on the parcel's destination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual sorting is used, then flexibility and adaptability are maintained, but sorting efficiency is low and errors increase
Solution Approach 1:
The patent replaces manual mechanical sorting with an automated projection-based guidance system. Workers receive projected visual instructions (arrows, colors, or text) on parcel surfaces indicating destination, eliminating the need for manual reading and interpretation of destination information while reducing human error in sorting decisions.
Solution Approach 2:
The patent introduces projected images as an intermediary between the parcel destination information and the worker's sorting action. Instead of workers directly reading and interpreting destination labels, the projection system translates destination data into intuitive visual cues that directly guide sorting actions, improving both efficiency and accuracy.
2Reliability
If automated projection systems are implemented, then sorting accuracy improves, but device complexity increases
Solution Approach 1:
The patent employs a multi-functional projection system that can display various types of instructions (arrows, colors, text) on different parcel surfaces using the same hardware platform. This universal approach consolidates what would otherwise require multiple specialized devices into a single system, managing complexity while maintaining high accuracy.
Solution Approach 2:
The patent utilizes color-coded projections to convey destination information intuitively. By using different colors to represent different destinations or sorting priorities, the system simplifies the information presentation layer, making it easier for workers to process and reducing the complexity of the control system compared to text-based or symbol-based approaches.
3Productivity
If projection instructions are displayed on moving parcels, then sorting speed increases, but the projected image may become illegible due to motion
Solution Approach 1:
The patent implements dynamic projection timing and positioning that adapts to parcel motion. The system projects instructions at optimal moments when parcels are stationary or moving slowly, and adjusts projection parameters (position, size, duration) based on real-time detection of parcel location and movement speed, ensuring legibility while maintaining high sorting throughput.
Solution Approach 2:
The patent performs preliminary identification and classification of parcels before they reach the projection zone. By pre-processing parcel information and pre-positioning projection content, the system ensures that when parcels enter the projection area, the correct instructions are already prepared and can be projected immediately, reducing the impact of motion on legibility.
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 system enables more precise and efficient sorting of parcels by projecting clear instructions onto the parcels, reducing human error and increasing sorting speed, even as parcel volumes rise, by leveraging real-time data and image processing to guide workers accurately.
Implementation Method 1
one or more display projectors. In one embodiment the display includes or connotes a handling instruction. The system in one embodiment includes a laser projection system to paint the selected display directly onto a selected exterior surface of the corresponding parcel
Data Source
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AI summary
There is provided a projection instruction device which generates a projection image to be projected on a parcel based on sensing information of the parcel, the device including: a processor; and a memory, in which by cooperating with the memory, the processor extracts a specific surface including the parcel from the sensing information of the parcel, and performs a process of generating the projection image based on only the specific surface.