Operator Guidance Lighting for Adaptive Manual Assembly
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Solution Overview
Problem
In modern production environments, particularly in the automotive sector, operators face challenges in performing manual assembly operations efficiently and correctly due to varying sequences of assembly tasks, which are not adequately addressed by existing systems.
Innovation Solution
A method utilizing a programmable device with inertial sensors and a lighting system that projects graphic instructions onto the work area, allowing for intuitive and flexible adaptation to changing operation sequences, either through tools or direct hand operations, using input devices such as SmartWatches, SmartPhones, or voice recognition to record and execute learning sequences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual guidance systems are implemented to assist operators in assembly operations, then assembly correctness is improved, but device complexity increases
Solution Approach 1:
The system creates a digital copy of the correct assembly sequence by recording the operator's demonstrated actions during a learning phase. This recorded sequence is then replayed as visual guidance during actual assembly operations, eliminating the need for complex pre-programmed instructions while ensuring assembly correctness.
Solution Approach 2:
The system enables itself to be programmed by the operator's own actions. During the learning phase, the operator performs the assembly tasks naturally, and the system automatically records the sequence and parameters without requiring external programming or complex configuration, thereby reducing device complexity.
2Stability of the object's composition
If traditional pre-programmed guidance systems are used, then system stability is improved, but adaptability to changing assembly sequences deteriorates
Solution Approach 1:
The system transitions from static pre-programmed instructions to dynamic adaptive guidance. The guidance sequence is recorded during a learning phase specific to each assembly task and can be updated by simply recording a new sequence, allowing the system to adapt to changing assembly requirements while maintaining operational stability through consistent visual feedback format.
Solution Approach 2:
The system performs a preliminary learning phase where it records the correct assembly sequence before actual production. This preliminary action captures the specific sequence needed for each assembly task, enabling the system to adapt to different sequences without reprogramming while maintaining stability during the actual assembly operation.
3Measurement precision
If complex pre-programmed instruction systems are implemented, then guidance precision is improved, but ease of operation deteriorates
Solution Approach 1:
Instead of programming the system to provide precise guidance, the operator's actions are recorded to create the guidance program. This inversion simplifies operation because the system automatically captures the precise sequence and parameters during the learning phase without requiring complex programming or configuration by the operator.
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
Ensures correct and efficient assembly operations by providing real-time guidance and rapid adaptation to new sequences, enhancing operator performance and production efficiency.
Implementation Method 1
a lighting device (4) having at least one light source for illuminating a work area in which the operator works
Implementation Method 2
at least one sensor (6) configured to detect spatial coordinates of the tool or of the operator's hands with reference to the work area
Implementation Method 3
said sensor is a system of inertial sensors arranged to determine the position of the assembly means, in such a way that said system is able to detect the position in space of said assembly means
Data Source
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Figure 3~4
AI summary
A programmable device (D) arranged in a production environment, to assist an operator (O) in performing manual assembly operations carried out by the operator (O), particularly during assembly operations performed on pieces (P) transported by pallets (5) in a production line (1). The device (D) comprises an assembly means usable by the operator (O), a lighting device (4) for lighting a work area in which the operator (O) works, a sensor (6) configured to detect the position of the assembly means, an input device (10) usable by the operator, and an electronic control system (8) configured to memorize a learning sequence including a sequence of manual assembly operations.