Paint Sprayer Cycle-Based Output Tracking for Remote Monitoring

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Solution Overview

Problem

Current fluid dispensing systems, such as those used for painting, lack effective monitoring and tracking capabilities for usage, productivity, and maintenance, leading to inefficiencies and potential equipment breakdowns due to lack of real-time data and remote management.

Innovation Solution

A fluid sprayer system equipped with a handheld computer and network connectivity that tracks usage and productivity through sensors and wireless communication, allowing for remote monitoring of pressure, cycles, and maintenance alerts, enabling efficient operation and timely maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a paint sprayer system uses multiple actuators and valves for precise control of multiple spray guns, then coating application precision and uniformity are improved, but system complexity and cost increase significantly

Engineering Contradiction:
Improvecoating application precisionVSAvoidsystem complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system divides control into two independent layers: a centralized controller manages overall coordination, while each spray gun is equipped with its own actuator for local control. This segmentation allows precise control of multiple guns without requiring a single complex control unit, reducing overall system complexity while maintaining coating precision.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The centralized controller serves multiple functions simultaneously: it coordinates all spray guns, monitors output volumes from multiple sources, detects discrepancies across the system, and manages remedial actions. This multi-functionality eliminates the need for separate specialized devices for each control task, reducing system complexity while improving precision.

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

2Measurement precision

If real-time monitoring of output volume from multiple spray guns is implemented, then detection of runaway spray guns and coating uniformity are improved, but device complexity and monitoring costs increase

Engineering Contradiction:
Improveoutput volume measurement precisionVSAvoidmonitoring system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system combines multiple monitoring functions into a single centralized controller that simultaneously tracks output volumes from all spray guns, compares measurements against expected values, and coordinates remedial actions. This merging approach achieves precise real-time monitoring without requiring separate monitoring devices for each gun, thereby reducing overall system complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The centralized controller implements continuous feedback by monitoring output volumes from each spray gun in real-time, comparing actual output against expected output, and automatically initiating remedial actions when discrepancies are detected. This feedback mechanism provides precise measurement and detection capabilities while maintaining relatively simple system architecture through automated response protocols.

Inventive Principle:
Principle #23Feedback

3Productivity

If automated remedial actions are implemented when output volume discrepancies are detected, then coating uniformity and productivity are improved, but control system complexity increases

Engineering Contradiction:
Improvecoating application productivityVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The centralized controller is pre-programmed with remedial action protocols that automatically execute when specific discrepancy conditions are detected. By preparing and storing these remedial actions in advance, the system can respond immediately to runaway spray guns without requiring complex real-time decision-making logic, thus improving productivity while keeping the control system relatively simple.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements self-service through automated detection and remediation capabilities. When the centralized controller detects an output volume discrepancy, it automatically initiates appropriate remedial actions without requiring manual intervention. This automation improves productivity by eliminating downtime for manual troubleshooting while maintaining control system simplicity through rule-based automated responses.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3856420B1Paint sprayer distribution control and output volume monitoring architectures
Publication Date: 2023.07.05 GRACO MINNESTOA INC
  • EP3856420B1 patent drawingFigure 1
  • EP3856420B1 patent drawingFigure 2
  • EP3856420B1 patent drawingFigure 3

AI summary

A sprayer (1) for spraying fluid includes a pump (9), a motor (4) that drives the pump (9), a drive cycle indicator (27A-C), a wireless module (23) configured to send and receive information, and control circuitry (21). The drive cycle indicator (27A-C) outputs an indication of cycle status of the pump (9). The control circuitry (21) is configured to receive the plurality of cycle status indications of the pump (9), determine a plurality of output values representing paint spray fluid output volume over a plurality of time windows based on the plurality of cycle status indications of the pump (9), store the plurality of output values in memory (22), and cause the wireless module (23) to transmit one or more of the stored plurality of output values externally from the sprayer.