Power Equipment Unlocking Terminal for Remote Mal-Operation Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current mal-operation prevention devices in high voltage power systems face inefficiencies due to mechanical locking mechanisms requiring on-site operation, limited long-distance cable connectivity, and inability to manage complex mal-operation prevention across power systems.
Innovation Solution
An intelligent terminal device with a communication module, display unit, and input/output module that allows for remote or in-site unlocking of safety devices, utilizing a microcontroller unit, sensor communication module, and network communication to monitor and control power equipment status, enabling real-time monitoring and control through an IoT platform.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical locking device and PMC device are used, then mal-operation prevention function is achieved, but operation efficiency is low and operation time is long
Solution Approach 1:
The patent replaces mechanical locking devices and manual PMC operations with an intelligent terminal device that uses electronic communication modules, sensors, and automated control algorithms. The terminal device communicates with the control system through wireless or wired networks, automatically monitors equipment status via sensors, and executes locking/unlocking operations without mechanical intervention, thereby significantly improving operation efficiency while maintaining mal-operation prevention functionality.
2Reliability
If mechanical key or computer key is used for operation, then mal-operation prevention is achieved, but operation strength is high and operation time is long
Solution Approach 1:
The intelligent terminal device performs self-service by automatically monitoring equipment status through integrated sensors, autonomously determining whether locking or unlocking operations are required based on pre-set conditions, and executing these operations without requiring manual intervention with physical keys. The device also automatically communicates its status and actions to the control system, eliminating the time-consuming manual key operation process while maintaining reliable mal-operation prevention.
3Reliability
If power cable connection is used for PMM device, then mal-operation blocking function is achieved, but long distance connection capability is limited and engineering application is complicated
Solution Approach 1:
The patent introduces a communication module as an intermediary between the intelligent terminal device and the control system. This communication module supports both wireless communication (such as Wi-Fi, Bluetooth, or cellular networks) and wired communication options, eliminating the need for direct power cable connections for data transmission. The terminal device can be installed remotely without complex cable routing, significantly simplifying engineering application while maintaining the reliable mal-operation blocking function through automated status monitoring and control signal transmission.
4Reliability
If power cable connection is used for PMM device, then mal-operation blocking function is achieved, but connection distance is limited
Solution Approach 1:
The patent replaces the mechanical power cable connection system with an intelligent terminal device equipped with communication modules that support wireless communication technologies. This substitution eliminates the physical connection distance limitations of power cables, allowing the terminal device to be installed at any distance from the control system while maintaining reliable mal-operation blocking functionality through wireless data transmission and remote control capabilities.
Data Source
AI summary
An intelligent terminal device is provided for preventing mal-operation of a power equipment. The power equipment has safety devices, such as breakers, isolators or disconnectors. The intelligent terminal device includes a communication module, a display unit, an input/output (I/O) module, and a protection shell covering and protecting the communication module. The display unit is used to display a communication status and a status of an unlocking mode, which is switchable between a remote unlocking mode and an in-site unlocking mode. The I/O module provides power I/O and I/O of information of the status of the power equipment. The communication module is used to monitor the status of the power equipment and the safety devices, control actions of the safety devices, upload the status to a control device through a network; and in response to receiving an unlocking instruction from the control device, perform an unlocking procedure.