Wireless Work Tool Identification via Dynamic Signal Strength
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing machine work tools require multiple system reconfigurations when different hydraulically controlled work tools are attached, due to unique control parameters and functions, leading to inefficiencies in operation.
Innovation Solution
A short-range wireless system comprising a device on the work tool that transmits data at varying signal strengths and sets an active flag when coupled with a machine, allowing a scanner to identify the connected tool based on this flag, reducing unnecessary power consumption and isolating active tools from others.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a work tool transmits data at high signal strength to ensure reliable communication, then communication reliability is improved, but energy consumption increases
Solution Approach 1:
The patent applies dynamics by making the signal strength adjustable rather than fixed. The processor dynamically changes the signal strength from a first level to a second level based on coupling detection, allowing the system to adapt transmission power to actual operational needs and achieve energy savings while maintaining communication reliability when required.
Solution Approach 2:
The patent changes the transmission parameter (signal strength) from a constant value to a variable value. By detecting the coupling state and adjusting the signal strength parameter accordingly, the system reduces energy consumption during uncoupled states while ensuring reliable communication during coupled operations.
2Adaptability or versatility
If multiple work tools are detected in the surrounding area, then the scanner can identify available tools, but difficulty in identifying the specifically connected tool increases
Solution Approach 1:
The patent applies local quality by giving each work tool a unique identifier and setting specific attributes (such as an active flag) that indicate coupling status. This allows the scanner to differentiate between multiple tools in the area and specifically identify which tool is connected to the vehicle, resolving the difficulty of tool identification.
Solution Approach 2:
The system uses feedback by having the work tool transmit data about its coupling state (through movement detection or explicit status flags) back to the scanner. This feedback mechanism enables the scanner to continuously update which tool is currently connected, making identification reliable even when multiple tools are present.
3Loss of information
If the work tool continuously transmits data at high signal strength, then data availability is improved, but unnecessary power consumption occurs when not coupled
Solution Approach 1:
The patent implements periodic action by having the work tool transmit data at different signal strengths based on operational phases. When uncoupled, transmission occurs at reduced power or intermittently; when coupled, transmission occurs at full power. This periodic adjustment of transmission intensity eliminates unnecessary energy consumption while maintaining data availability when needed.
Solution Approach 2:
The system performs preliminary action by detecting the coupling state before initiating high-power data transmission. The movement detection device or flag system预先 determines whether the tool is ready for communication, preventing unnecessary high-power transmissions when the tool is not yet coupled to the vehicle.
Data Source
AI summary
A short-range wireless device includes a short-range data transmission component transmitting data at a first signal strength. A movement detection device provides an indication that a work tool supporting the short-range wireless device is in a coupled configuration with a machine, or is intended to be coupled with the machine. A processor reduces the first signal strength to a second signal strength in response to the indication. The short-range data transmission component then transmits data at the second signal strength.