Hand-Held Spray Device Gyro Sensor Orientation Control
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Solution Overview
Problem
Hand-held spray devices face challenges in maintaining orientation and efficiency while spraying various surfaces, including walls, ceilings, and sloping roofs, due to complexity and the need for multiple sensors.
Innovation Solution
A method utilizing a single gyro sensor to control the spray nozzle's orientation through closed-loop feedback, allowing for manual movement compensation and surface adaptation without additional sensors, enabling efficient spraying of diverse surfaces with minimal technical complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensors are used to control spray nozzle orientation for various surfaces, then orientation precision and adaptability are improved, but device complexity and cost increase
Solution Approach 1:
The single gyro sensor is designed to perform multiple functions: detecting spray nozzle orientation, determining surface types (walls, ceilings, sloping roofs), and providing data for closed-loop control. This multi-functional design eliminates the need for multiple specialized sensors while maintaining comprehensive control capability across different spraying scenarios.
Solution Approach 2:
The patent implements a closed-loop control system where the gyro sensor continuously monitors spray nozzle orientation and feeds this data back to the control unit. The control unit then adjusts the spray nozzle position in real-time to maintain the desired orientation relative to the target surface, achieving precise control with a single sensor through continuous feedback adjustment.
2Adaptability or versatility
If multiple sensors and complex control systems are implemented, then adaptability to different surfaces is improved, but energy consumption increases
Solution Approach 1:
The single gyro sensor serves multiple purposes including orientation detection, surface type identification, and control input generation. This multi-functional approach allows the system to adapt to different surfaces (walls, ceilings, sloping roofs) while consuming less energy than would be required by multiple specialized sensors operating simultaneously.
Solution Approach 2:
The system uses the spray device's own movement and orientation data from the single gyro sensor to automatically adapt to different surfaces. The closed-loop control system self-adjusts the spray nozzle orientation based on real-time sensor feedback, eliminating the need for additional active components that would increase energy consumption.
3Device complexity
If a single sensor is used to control spray nozzle orientation, then device complexity and cost are reduced, but measurement precision and control accuracy may deteriorate
Solution Approach 1:
The closed-loop control system continuously monitors spray nozzle orientation using the gyro sensor and makes real-time adjustments to maintain precise orientation. The feedback mechanism compensates for the limitations of a single sensor by continuously correcting deviations, thereby achieving high measurement precision and control accuracy despite using minimal sensor infrastructure.
Solution Approach 2:
The patent replaces complex mechanical orientation control systems with an electronic feedback-based control system using a single gyro sensor. This substitution allows for precise electronic adjustment of spray nozzle orientation through software control and closed-loop feedback, achieving high precision without the mechanical complexity of multiple sensors or mechanical adjustment mechanisms.
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 solution allows for cost-effective, intuitive, and precise control of the spray nozzle orientation, enabling efficient spraying of multiple surfaces, including sloping roofs, with reduced sensor complexity and energy requirements, while maintaining desired orientations.
Implementation Method 1
a single sensor, preferably a gyro sensor, in particular by a multi-axis gyro sensor, and preferably by a two-axis gyro sensor or a three-axis gyro sensor
Data Source
AI summary
A method for operating a hand-held spray device, wherein in a first step a target orientation of the spray nozzle relative to the operator control unit is defined, and wherein during operation a rotation of the spray device, brought about by manual movement of the spray, through a z swinging angle, about a z axis which is orthogonal with respect to the longitudinal axis and/or through a y swinging angle about a y axis which is orthogonal with respect to the longitudinal axis and orthogonal with respect to the z axis, by a single sensor and wherein the z swinging angle and/or the y swinging angle engage as interference variables in a closed-loop control circuit and make available closed-loop control variables in such a way that the spray nozzle retains its target orientation by means of closed-loop control of the swinging mechanism.