Wire Harness Fitting Sound Detection With Sensor-Gated Listening
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Solution Overview
Problem
Existing methods for detecting fitting sounds during the assembly of wire harness components are inaccurate and inefficient, leading to potential manufacturing defects due to improper electrical connections.
Innovation Solution
A fitting sound detection device equipped with a microphone, holding member, sensor, and processor to accurately detect fitting sounds by using a learning model tailored to specific types of fitting members and factory environments, with power-saving features to optimize performance and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sound data is collected continuously by a wristwatch device during fitting operations, then fitting sound detection capability is provided, but power consumption increases and detection accuracy decreases due to background noise
Solution Approach 1:
The device performs preliminary actions by detecting wire harness presence before initiating sound collection and determination processes. The sensor detects whether the wire harness is held by the holding member, and only when detected does the system activate the microphone and determination process. This preliminary detection prevents unnecessary power consumption during periods when no fitting operation is occurring.
Solution Approach 2:
The system dynamically adjusts its operation state based on real-time sensor input. The determination process is executed only when the sensor detects the wire harness, and suspended when detection is lost. This dynamic on-demand operation mode optimizes power consumption while maintaining detection accuracy during actual fitting operations.
2Measurement precision
If sound collection is performed in all factory environments, then fitting sounds can be detected, but detection accuracy decreases due to varying background noise levels
Solution Approach 1:
The system performs preliminary detection of the wire harness presence before initiating sound analysis. By using the sensor to detect whether the wire harness is held by the holding member, the system prepares the detection environment and ensures that sound collection occurs only when the target object is properly positioned, thereby improving detection accuracy across different factory environments.
Solution Approach 2:
The system uses sensor feedback about wire harness presence to control the determination process. When the sensor detects the wire harness, the system activates sound collection and analysis; when detection is lost, the process is suspended. This feedback mechanism adapts the detection system to actual working conditions, maintaining accuracy despite varying factory environments.
3Reliability
If the determination process is executed continuously, then fitting sounds are detected without missing any events, but processing time is wasted during non-operational periods
Solution Approach 1:
The sensor performs preliminary detection of the wire harness before the determination process is executed. This preliminary action ensures that the system only processes sounds when the wire harness is present and a fitting operation is likely occurring, maintaining detection reliability while avoiding unnecessary processing during non-operational periods.
Solution Approach 2:
The determination process is executed periodically only when the sensor detects the wire harness, rather than continuously. The system monitors the sensor state and activates the determination process in periodic intervals during operational periods, suspending it during non-operational periods. This periodic execution maintains reliability for detecting fitting sounds while significantly reducing time loss during idle periods.
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
Enhances the accuracy and efficiency of fitting operations by stabilizing the fitting process and reducing power consumption, thereby minimizing manufacturing defects and improving workability.
Implementation Method 1
a microphone; a holding member configured to hold a fitting member provided on an end of a wire harness; a sensor configured to detect the wire harness
Data Source
AI summary
A fitting sound detection device includes: a microphone; a holding member configured to hold a fitting member provided on an end of a wire harness; a sensor configured to detect the wire harness in which the fitting member is held by the holding member; and one or more processors configured to control execution of a determination process to determine whether or not sound collected by the microphone includes a fitting sound by the fitting member on a basis of sound data based on the sound collected by the microphone, wherein the one or more processors are further configured to execute the determination process while the sensor detects the wire harness, and not execute the determination process while the sensor does not detect the wire harness.