Electric Tool Data Transfer for Uninterrupted Fastening
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Solution Overview
Problem
Existing electric tool control systems face user-friendliness issues due to prolonged communication times when transmitting screw fastening operation history, leading to suspended operations and decreased efficiency.
Innovation Solution
The electric tool system incorporates both wireless and wired communication modes, allowing operations data to be transmitted via wireless communication during fastening operations and stored data to be transmitted via wired communication when the tool is not in use, reducing interference and improving user-friendliness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication is used to transmit operations data during fastening operations, then data can be transmitted without physical connection, but transmission time increases and operations must be suspended
Solution Approach 1:
The operations data is segmented into two transmission paths: critical data transmitted wirelessly during operations, and complete data sets transmitted via wired connection during idle periods. This segmentation allows the system to maintain operational continuity while ensuring comprehensive data transmission.
Solution Approach 2:
The system performs preliminary wireless transmission of essential operations data during fastening operations, then prepares and transmits the complete data set through wired communication in advance before the next operational cycle begins. This preliminary action minimizes operational suspension time.
2Loss of information
If wireless communication transmits all operations data, then complete information is available, but transmission time increases and productivity decreases
Solution Approach 1:
The system segments operations data into two categories: essential data transmitted wirelessly during operations to maintain information flow, and complete detailed data transmitted via wired connection during idle periods. This ensures information completeness without compromising productivity.
Solution Approach 2:
The system maintains continuous useful action by transmitting critical operations data wirelessly during fastening operations, allowing operations to proceed without suspension. The complete data set is then transmitted via wired connection during idle periods when no operations are pending, ensuring continuous information flow without interrupting productive work.
3Speed
If wired communication is used to transmit stored operations data, then data transfer speed increases, but operations must be suspended for transmission
Solution Approach 1:
The system performs wired data transmission as a preliminary action during idle periods before the next operational cycle begins. This timing ensures that high-speed wired transmission occurs when no fastening operations are needed, eliminating the trade-off between transmission speed and operational continuity.
Solution Approach 2:
The system implements periodic wired transmission of complete operations data during idle periods, alternating with wireless transmission during active operations. This periodic action allows the system to leverage high-speed wired communication without suspending productive fastening operations.
Data Source
AI summary
An electric tool includes a fastening unit, a control unit, a sensor unit, a communications unit, a storage unit, and a portable tool body. The sensor unit measures at least fastening torque applied by the fastening unit. The communications unit transmits operations data about a result of measurement made by the sensor unit. The communications unit includes a wireless communications unit and a wired communications unit. In a wireless communication mode, the wireless communications unit transmits, by a wireless communication method, at least a part of the operations data, when a fastening operation has been done for either one round or multiple rounds. In a wired communication mode, while the communications unit is operating in the wired communication mode, the wired communications unit transmits, by a wired communication method, the operations data stored in the storage unit.