Roadside Litter Separation Using Camera-Guided Conveyor Sorting
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Solution Overview
Problem
Current methods for roadside litter collection are labor-intensive, costly, and pose safety risks to workers, particularly alongside highways, while existing vehicles are inefficient in separating litter from mixed roadside materials.
Innovation Solution
A roadside litter collecting apparatus with a pneumatic pick-up system, a sorting station equipped with a camera and a pick-up arm, and a separator conveyor to identify and collect litter, separating it from roadside materials and returning clean materials to the roadside.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual litter picking is used, then litter collection is performed, but labor cost and safety risk increase
Solution Approach 1:
The patent replaces manual mechanical litter picking with an automated mechanical system consisting of a suction apparatus, conveyor, and robotic pick-up arm. The suction apparatus automatically collects litter-contaminated roadside material, the conveyor transports it to the sorting station, and the robotic arm with camera detection automatically removes litter, eliminating the need for manual worker intervention and thereby resolving the contradiction between collection efficiency and worker safety.
Solution Approach 2:
The system performs self-service through automated detection and separation. The camera automatically detects litter on the conveyor, the robotic arm autonomously picks it up, and the system self-regulates the separation process without human intervention, thereby improving both productivity and safety simultaneously.
2Productivity
If existing road cleaning vehicles are used, then litter collection is performed, but separation efficiency of litter from roadside material deteriorates
Solution Approach 1:
The patent replaces conventional mechanical separation methods with an optical detection system. A camera mounted on the conveyor accurately detects and identifies litter items, providing precise measurement and recognition that mechanical sensors cannot achieve, thereby resolving the contradiction between separation efficiency and detection accuracy.
Solution Approach 2:
The camera acts as an intermediary between the conveyor and the robotic pick-up arm. It captures images of the material on the conveyor, processes the visual information to identify litter, and provides precise location data to the robotic arm for accurate pickup, thereby enabling both high separation efficiency and high detection accuracy.
3Extent of automation
If pneumatic pick-up system is used, then litter collection is automated, but device complexity increases
Solution Approach 1:
The patent divides the litter collection system into distinct functional segments: the suction apparatus for collecting litter-contaminated material, the conveyor for transporting it, the camera for detection, and the robotic pick-up arm for removal. This segmentation allows each component to be independently optimized and maintained, reducing overall system complexity despite high automation.
Solution Approach 2:
The conveyor serves multiple functions: it transports litter-contaminated roadside material from the suction apparatus to the sorting station, provides a stable platform for camera detection, and positions material for the robotic pick-up arm. This multi-functionality reduces the need for separate components, thereby reducing device complexity while maintaining automation.
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 apparatus efficiently collects and separates litter from roadside materials, reducing manual labor and safety risks, while effectively sorting and returning clean materials to the roadside.
Implementation Method 1
a fan having an inlet connected to the settlement tank to apply suction to the pick-up pipe
Implementation Method 2
the litter separator has a camera which is operable to detect litter within the litter contaminated roadside material
Data Source
AI summary
A roadside litter collecting apparatus has a frame or chassis upon which is mounted a pneumatic litter pick-up apparatus which includes a flexible suction pipe for delivery of litter contaminated roadside material to a settlement tank. The litter contaminated roadside material is discharged from the settlement tank and is spread out on a sorting conveyor. A camera mounted above the sorting conveyor is operable to detect litter within the litter contaminated roadside material on the sorting conveyor and an associated pick-up arm is operable in response to the camera to grab litter detected by the camera and deposit the litter into a litter bin located beneath the sorting conveyor. The cleaned roadside material is returned to the roadside, and at the same time another batch of litter contaminated roadside material is discharged from the settlement tank onto the sorting conveyor to repeat the sorting process.