NFC Torque-Angle Test Fixture for In-Field Screwdriver Verification
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Solution Overview
Problem
Existing test devices for screwing devices require complex setup and specialized operators to record torque and angle measurements in-field, disrupting normal operations and requiring manual identification and data association, which is inconvenient and inefficient.
Innovation Solution
A test device with a rotatable shaft, NFC communication module, and transducers for angle and torque measurement, allowing for autonomous operation by storing identification codes and associating them with measurement data, enabling easy, efficient in-field testing without additional personnel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If test devices are used in the field with manual identification and data association, then torque and angle measurements can be recorded, but operational efficiency decreases and normal operations are disrupted
Solution Approach 1:
The screwing device automatically performs identification and data association functions through integrated NFC communication and processing units, eliminating the need for manual operator intervention. The device autonomously reads identification codes, associates them with measurement data, and manages test operations, allowing users to perform tests independently without specialized operators disrupting normal operations.
Solution Approach 2:
The test device merges the screwing function and testing function into a single integrated system. The NFC communication module, processing unit, and measurement transducers are combined within the screwing device itself, allowing simultaneous performance of screwing operations and automated test data collection without requiring separate manual operations.
2Measurement precision
If specialized operators manually record measurements, then accurate data collection is achieved, but additional personnel and training requirements increase operational complexity
Solution Approach 1:
The screwing device automatically performs identification and data association functions through integrated NFC communication and processing units, eliminating the need for manual operator intervention. The device autonomously reads identification codes, associates them with measurement data, and manages test operations, allowing users to perform tests independently without specialized operators disrupting normal operations.
Solution Approach 2:
The NFC communication module acts as an intermediary between the identification system and the measurement system. It automatically transmits identification codes to the processing unit, which then associates them with measurement data from transducers, eliminating the need for manual data association while maintaining accurate data collection.
3Measurement precision
If test devices require stable connection to electronic systems for data transfer, then data analysis capability is maintained, but portability and ease of use in field conditions deteriorate
Solution Approach 1:
The screwing device incorporates multiple communication interfaces including NFC, Bluetooth, and USB connections, allowing it to function both as an autonomous field testing device and as a connected system for data analysis. The processing unit can store and analyze data locally while also transferring data to external systems when needed, providing universal functionality across different operational contexts.
Solution Approach 2:
The screwing device automatically performs identification and data association functions through integrated NFC communication and processing units, eliminating the need for manual operator intervention. The device autonomously reads identification codes, associates them with measurement data, and manages test operations, allowing users to perform tests independently without specialized operators disrupting normal operations.
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
Enables rapid and precise testing of screwing devices in-field with minimal disruption to operations, allowing users to perform tests independently and simplifying data transfer and analysis.
Implementation Method 1
an NFC communication module that is suitable for receiving an identification code from the outside
Implementation Method 2
a first transducer for detecting the rotation angle of the shaft
Implementation Method 3
a second transducer for detecting the torque transmitted by the shaft between the two ends
Data Source
AI summary
A test device (10) for testing screwing devices, comprising a shaft (14) with an end (15) for connection to a screwing device and an opposite end (16) for connection to a joint to be screwed. The device (10) further comprises a first transducer (18) for detecting the rotation angle of the shaft (14) and a second transducer (19) for detecting the torque transmitted by the shaft (14) between the two ends (15, 16). The device (10) further comprises a control unit (20), an NFC communication module (31), a memory (30), and means (24, 31) for communication with the outside. The control unit stores in the memory (30) an identification code received from the NFC communication module (31) and associates it in the memory (30) with test data obtained from the first and second transducers (18, 19). Then the communication means (24, 31) send to the outside data obtained from the contents of the memory (30). A method for testing and managing the tests and a system which comprises in addition to the test device (10) also at least one NFC tag (33) are also described.