NFC Wireless Communication Apparatus for Electric Power Tools
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Solution Overview
Problem
Existing near field wireless communication systems for electric power tools have limited storage area capacity due to restricted address information length, which restricts the range of data that can be written to or read from storage mediums.
Innovation Solution
A wireless communication device that allows for near field wireless communication by storing multiple commands in a communication frame, enabling sequential execution of these commands for reading and writing operations, thereby expanding the addressable storage area and data length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If address information is limited to 2 bytes in NFC communication frames, then communication compatibility is maintained, but the storage area that can be specified is limited to 256 areas
Solution Approach 1:
The patent segments the address specification into two parts: a base address (2 bytes) from the head frame and an offset address (variable length) from the information frame. This segmentation allows the system to access a much larger storage area (256 + additional areas) while maintaining compatibility with existing NFC communication standards. The base address provides the initial location, and the offset address extends the reachable range without requiring a complete redesign of the address structure.
Solution Approach 2:
The patent adds a new dimension to address specification by introducing offset addresses that work in conjunction with base addresses. Instead of relying solely on a 2-byte address field, the system now uses a two-dimensional addressing scheme where the first dimension is the base address and the second dimension is the offset. This dimensional expansion enables access to storage areas beyond the original 256-area limit while preserving the original address format for compatibility.
2Productivity
If multiple commands are transmitted separately in NFC communication, then command execution is simple, but communication efficiency decreases and more transmission time is required
Solution Approach 1:
The patent merges multiple commands into a single information frame, allowing several commands to be transmitted together in one NFC communication session. The information frame can contain multiple command sets, each with its own offset address and command data. This combining approach significantly improves communication efficiency by reducing the number of separate transmission cycles needed, while the controller processes these merged commands sequentially according to their offsets.
Solution Approach 2:
The patent implements preliminary action by having the master device prepare and transmit multiple commands in advance within a single information frame before actual execution. The commands are organized with offset addresses that indicate their execution order and target locations. This preliminary organization allows the slave controller to efficiently process multiple commands without requiring repeated communication cycles, thereby improving overall productivity.
Data Source
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AI summary
In a wireless communication device comprising a controller that reads information from and writes information to a storage medium and a communication device for near field wireless communication, if an information frame of communication frame received by the communication device contain a plurality of commands, the controller stores the plurality of commands and then reads or writes information from or to the storage medium by sequentially executing the commands every time the communication device receives a write request or a read request thereafter.