Wall Painting Robot Navigation With LiDAR and Ultrasonic Sensing
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Solution Overview
Problem
Existing robotic painting systems require significant manual intervention and suffer from inconsistencies in wall measurement and robotic movement, limiting their ability to achieve fully automated paint application.
Innovation Solution
A semi-autonomous mobile robot apparatus equipped with ultrasonic sensors, LiDAR sensors, a human machine interface, microprocessor, vertical telescopic arms, and airless spray rig, allowing for pre-programmed and remote-controlled paint application, primer application, and wall sanding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual intervention is used in robotic painting systems, then ease of operation is improved, but extent of automation deteriorates
Solution Approach 1:
The robotic painting system performs self-measurement of wall dimensions and self-navigation to painting locations using integrated sensors and processors, eliminating the need for manual measurement and positioning while maintaining operational autonomy
2Measurement precision
If manual measurement of walls is performed, then measurement precision is improved, but productivity deteriorates
Solution Approach 1:
The system replaces manual mechanical measurement with electronic sensors and processors that automatically measure wall dimensions, calculate painting areas, and store data digitally, achieving both precise measurements and high productivity simultaneously
Solution Approach 2:
The processor acts as an intermediary between the sensors and the painting system, automatically computing wall areas from sensor data and generating navigation paths, eliminating the need for manual calculation while maintaining measurement accuracy
3Productivity
If robotic movement is automated, then productivity is improved, but measurement precision deteriorates
Solution Approach 1:
The system uses sensors to continuously feedback wall position and dimension data to the processor, which adjusts the robotic movement in real-time to maintain precise alignment with wall edges and features, ensuring both automated productivity and measurement precision
4Productivity
If airless spray rig is used, then productivity is improved, but object-generated harmful factors worsen
Solution Approach 1:
The system extracts the harmful function (paint application) from the operator by using a robot-mounted airless spray rig, which applies paint remotely through automated movement, thereby increasing productivity while eliminating operator exposure to harmful paint fumes
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 achieves high efficiency and accuracy in paint application, reduces manual labor, and minimizes exposure to harmful paint fumes, while ensuring consistent quality and reducing delays in construction projects.
Implementation Method 1
one or more distance measuring sensors provide input to the microprocessor
Implementation Method 2
at least 2 Light Detection and Ranging (LiDAR) sensors coupled to the apparatus
Data Source
AI summary
The embodiments herein discloses a semi-autonomous mobile robotic apparatus (100) that can apply primers and paints and perform other operations such as wall sanding, drawing abstract wall art on the interior walls of buildings. The disclosed semi-autonomous mobile robotic apparatus (100) apparatus comprises of at least 13 numbers of type-1 (403) and at least 2 numbers of type-2 (405) ultrasonic sensors coupled to the apparatus (100), at least 2 Light Detection and Ranging (LiDAR) sensors (401 and 402) coupled to the apparatus (100), a human machine interface module (102) adapted to receive one or more inputs from a user (101) and provide the data to the microprocessor (103) for processing inside the apparatus (100) and provide output to one or more modules (104 and 105) to perform the relevant painting, sanding, putty application or abstract wall art drawing operations.