Wireless Data Connection Between Power Tool and External Unit
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Solution Overview
Problem
Existing wireless data transmission methods between devices, such as handheld power tools and external units, require manual initiation and lack efficient automatic connection establishment based on synchronized movement parameters.
Innovation Solution
A method that automatically sets up a data connection between devices by comparing movement parameters like acceleration values and position parameters, allowing for wireless transmission without manual activation, and maintains or disconnects the connection based on these parameters for synchronized movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual connection initiation is used for wireless data transmission, then connection establishment is reliable and secure, but ease of operation deteriorates due to requiring operator intervention
Solution Approach 1:
The system automatically establishes connections by comparing motion parameters between devices without requiring operator intervention. The devices self-determine connection eligibility based on synchronized motion detection, eliminating the need for manual pairing initiation while maintaining security through motion-based verification.
2Extent of automation
If automatic connection establishment based on motion parameters is implemented, then ease of operation and automation improve, but device complexity increases due to motion parameter comparison requirements
Solution Approach 1:
The system uses the existing motion sensors (accelerometers, gyroscopes) already present in smartphones and tablets for their primary navigation and fitness tracking functions. These same sensors are repurposed for connection establishment by comparing motion patterns between devices, avoiding the need for dedicated hardware while enabling automatic connection.
3Reliability
If motion parameter comparison is used for connection establishment, then connection reliability improves by preventing cross-connections, but loss of time increases due to motion parameter recording and comparison processes
Solution Approach 1:
The system continuously records motion parameters in the background even when no connection is being established. This preliminary data collection allows for immediate connection establishment when devices come into proximity, as the motion comparison can be performed instantly using already-captured data rather than requiring new motion recording cycles.
4Reliability
If continuous motion parameter monitoring is performed for connection maintenance, then connection reliability improves, but energy consumption increases
Solution Approach 1:
The system performs motion parameter comparisons at periodic intervals rather than continuously monitoring. Connection status is re-evaluated at predetermined time points or when specific motion thresholds are exceeded, reducing energy consumption while maintaining adequate connection reliability through periodic verification.
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to a method for the transmission, in particular wireless transmission, of electronic data between at least two connection partners, in particular between a hand-held power tool (10) and an external unit (12). According to the invention, at least in one method step (14), a data connection is established, in particular automatically established, between the connection partners depending on a comparison of characteristic movement variables of the connection partners.