Electric work machine
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless linking systems for electric work machines require complex pairing registration processes and are not suitable for battery-driven machines without power cords, leading to operational inefficiencies and potential unintended combinations.
Innovation Solution
A wireless linking system that automatically performs pairing registration when switching to linked operation mode, using a communication circuit that searches for and connects with compatible machines, and allows seamless operation even with battery-driven machines by storing identification information and reconnecting upon power restoration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless communication is used for linking battery-driven electric work machines, then the applicability to battery-driven machines without power cords is improved, but the pairing registration process becomes troublesome and complex
Solution Approach 1:
The system performs automatic pairing registration without requiring manual intervention. When a master-side electric work machine and a slave-side electric work machine are brought into wireless communication range, they automatically complete the pairing process by exchanging identification information and establishing connection, eliminating the need for users to manually register devices
Solution Approach 2:
The system pre-defines the master and slave roles for different types of electric work machines in advance. The control unit determines which machine should be master and which should be slave based on pre-stored machine type information, so that when pairing occurs, the roles are automatically assigned without requiring users to configure them manually
2Reliability
If manual pairing registration is required for wireless linking, then the linking function can be established, but the number of button operations increases and operability deteriorates
Solution Approach 1:
The pairing registration is performed automatically through wireless communication between machines. The control units of master and slave machines autonomously exchange identification information, verify compatibility, and establish the linking relationship without requiring users to press buttons or follow complex registration procedures
Solution Approach 2:
The manual mechanical button-pressing operation for pairing registration is replaced by automatic wireless communication and data exchange between machines. The control units use wireless signals to transmit identification information and establish connections, substituting the mechanical interaction with automated electronic communication
3Ease of operation
If automatic wireless pairing is implemented, then the ease of operation is improved, but unintended combinations of electric work machines may occur
Solution Approach 1:
The control unit transmits and receives identification information between master and slave machines to verify compatibility. The system checks whether the received identification information matches the expected type, providing feedback to confirm that the correct machines are being paired, and only establishes the linking relationship when verification succeeds
Solution Approach 2:
Machine type identification information is stored in advance in the control units of all electric work machines. Before establishing a wireless link, the system retrieves and compares this pre-stored information to ensure that only compatible machine types are paired, preventing unintended combinations
4Adaptability or versatility
If power is cut off during linked operation, then the machines can be reset, but the linking connection is lost and requires re-establishment
Solution Approach 1:
When power is restored after a cutoff during linked operation, the control unit automatically initiates the search for the previously paired machine using stored identification information. The system autonomously re-establishes the wireless connection without requiring users to manually restart the pairing process, reducing recovery time
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention achieves a wireless linking system for an electric work machine, the system configured to automatically perform pairing registration, and is thus simple and easy to use. This electric work machine (circular saw 100) is provided with a wireless communication unit for performing wireless communication with another electric work machine (dust collector 50) and can be switched by a switching switch between a linked operation mode in which the electric work machine works together with another electric work machine, and an independent operation mode in which the electric work machine works alone. When the switch is switched from the independent operation to the linked operation mode, a control unit for the electric work machine (circular saw 10 or dust collector 50) automatically searches for another electric work machine with which the electric work machine can communicate, and transitions the work machines to a linked state when the other electric work machine is detected and pairing registration is possible. When another linkable electric work machine is not detected, the search is continued.