Wireless Electric Tool Abnormality Reporting and Locking
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Solution Overview
Problem
Existing electric tools lack the capability to immediately report abnormalities, such as theft or misuse, to operators, posing security risks as they are often left unattended at construction sites.
Innovation Solution
An abnormality reporting system that connects electric tools via wireless communication to a communication terminal, which determines and reports any abnormalities by transmitting signals to both the tool and a central reporting unit, allowing for immediate notification and locking of the tool to prevent unauthorized use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electric tools are left unattended at construction sites for break time or after work, then productivity is improved as workers can take breaks, but security deteriorates as tools become vulnerable to theft
Solution Approach 1:
The system performs preliminary actions by establishing wireless communication connections and activating monitoring functions before tools are left unattended. The control unit is pre-configured to detect abnormal states and the communication terminal is ready to receive and process abnormality information, enabling immediate response when theft or misuse occurs.
Solution Approach 2:
The system implements continuous feedback by having the control unit monitor tool status and immediately transmit abnormality information to the communication terminal when unauthorized use is detected. This closed-loop feedback mechanism allows real-time security monitoring and rapid response to theft attempts, resolving the security vulnerability created by leaving tools unattended.
2Device complexity
If traditional manual monitoring of electric tools is used, then device complexity is minimized, but information loss occurs as operators cannot immediately detect or report abnormalities
Solution Approach 1:
The control unit performs self-service by autonomously detecting abnormal states of the electric tool and automatically transmitting abnormality information to the communication terminal without requiring manual inspection. This self-monitoring capability eliminates information loss while adding minimal complexity, as the tool monitors itself and reports issues proactively.
Solution Approach 2:
The system replaces manual mechanical monitoring with electronic detection and wireless communication. The control unit uses electronic sensors and processors to detect abnormalities, substituting human visual inspection and manual reporting with automated electronic information transmission, thereby eliminating information loss while keeping the system relatively simple.
3Reliability
If immediate abnormality reporting is implemented across multiple electric tools, then security is improved through rapid response, but device complexity increases due to wireless communication and control systems
Solution Approach 1:
The communication terminal performs multiple functions: receiving abnormality information from any connected electric tool, displaying alerts, and potentially controlling tool operations. This multi-functionality consolidates security capabilities into a single device, improving security response while avoiding the complexity of adding separate systems to each tool.
Solution Approach 2:
The wireless communication system acts as an intermediary between the control unit and the user interface. It transmits abnormality information without requiring direct physical connections or complex integrated circuits in each tool, thereby improving security response capability while minimizing the complexity increase in individual tool devices.
Data Source
AI summary
A technique capable of immediately reporting to an operator an occurrence of abnormality in an electric tool is provided. A communication terminal includes a communication-terminal-side control unit that determines whether abnormality has occurred in any of electric tools based on information acquired from the electric tools via wireless communication. When the communication-terminal-side control unit determines the occurrence of abnormality in any one of the electric tools, the occurrence of abnormality in the electric tool is reported by at least one of a report unit included in the electric tools other than the electric tool in which the occurrence of abnormality is determined and a report unit included in the communication terminal.