Paint Sprayer Output Monitoring via Pump Cycle Feedback

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Solution Overview

Problem

Existing fluid dispensing systems, such as paint sprayers, lack effective monitoring and management of usage, productivity, and maintenance, leading to inefficiencies and potential equipment breakdowns.

Innovation Solution

Implementing a system with a handheld computer and network infrastructure to track usage, productivity, and maintenance of fluid sprayers, utilizing sensors and wireless communication to monitor pump cycles, pressure, and geographic location, and manage fluid output and maintenance schedules.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a paint sprayer system operates without monitoring and management, then the device complexity is reduced, but productivity tracking and maintenance management deteriorate

Engineering Contradiction:
Improveproductivity trackingVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system implements feedback loops where sensors continuously monitor pump cycles, pressure, and geographic location, and this data is transmitted to a handheld computer and network server. The system provides feedback on usage patterns, productivity metrics, and maintenance requirements, enabling automated decision-making and tracking without requiring complex manual intervention.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The paint sprayer system performs self-monitoring and self-reporting of its operational status. The integrated sensors and control circuitry automatically track pump cycles, detect idle usage, monitor pressure levels, and generate maintenance alerts without requiring external observation or manual logging, allowing the system to service its own monitoring needs.

Inventive Principle:
Principle #25Self-service

2Reliability

If the system monitors all operational parameters, then reliability is improved, but device complexity increases

Engineering Contradiction:
Improveequipment reliabilityVSAvoidmonitoring system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The monitoring system is segmented into distinct functional modules: sensors for detecting operational parameters, control circuitry for processing data, communication interfaces for data transmission, and a network server for centralized management. This segmentation allows each component to perform its specific function independently, reducing overall system complexity while maintaining comprehensive monitoring capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control circuitry and handheld computer serve multiple functions simultaneously: they monitor pump cycles, track geographic location via GPS, measure pressure levels, detect idle usage patterns, and generate maintenance alerts. This multi-functionality reduces the need for separate dedicated systems for each monitoring task, thereby reducing overall device complexity while maintaining comprehensive reliability monitoring.

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

Data Source

PatentEP4331731B1Paint sprayer distributed control and output volume monitoring architectures
Publication Date: 2026.03.11 GRACO MINNESTOA INC
  • EP4331731B1 patent drawingFigure 1
  • EP4331731B1 patent drawingFigure 2
  • EP4331731B1 patent drawingFigure 3

AI summary

A sprayer for spraying fluid includes a pump, a motor that drives the pump, a drive cycle indicator, a wireless module configured to send and receive information, and control circuitry. The drive cycle indicator outputs an indication of cycle status of the pump. The control circuitry is configured to receive the plurality of cycle status indications of the pump, 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, store the plurality of output values in memory, and cause the wireless module to transmit one or more of the stored plurality of output values externally from the sprayer.