Explosion-Proof Breaker Monitoring via WirelessHART Gateway

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Solution Overview

Problem

Circuit breakers in hazardous industrial environments require manual access to monitor and manage issues, leading to delayed notifications of safety and performance problems, which can result in hazardous conditions due to the need for physical opening of explosion-proof housings.

Innovation Solution

Implementing a system with a controller within an explosion-proof housing that uses wired and wireless communication links to remotely monitor and control circuit breakers, allowing real-time data transmission and command execution via a process control network, such as WirelessHART®, without the need for physical access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If circuit breakers are positioned within explosion-proof housings for safety, then safety requirements are met, but workers must physically open the housing to access data and control, causing delayed notification of safety issues

Engineering Contradiction:

ImprovesafetyVSAvoidnotification delay

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

A wireless communication module acts as an intermediary between the circuit breaker inside the explosion-proof housing and external monitoring systems. This module receives data from the circuit breaker via wired links and transmits it wirelessly to external devices, enabling real-time monitoring without requiring physical access to the hazardous housing.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical approach of physically opening the explosion-proof housing to access circuit breakers with an electronic/wireless communication system. The controller uses wireless communication interfaces to transmit data and receive commands, substituting the need for manual physical access with automated electronic communication.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If workers manually access circuit breakers in hazardous areas, then data can be retrieved and control actions performed, but worker safety risks increase

Engineering Contradiction:

Improvemanual accessVSAvoidworker safety risk

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The circuit breaker system performs self-monitoring and self-reporting functions through the wireless communication module. The system automatically detects issues, logs events, and transmits data without requiring worker intervention, enabling the system to serve itself and eliminate the need for workers to enter hazardous areas.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The wireless communication module serves as an intermediary that enables remote interaction with the circuit breaker. External devices can send commands and receive data through this intermediary without workers needing to physically approach the hazardous equipment.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Power

If wired communication links are used for data transmission, then high bandwidth is available, but physical access to cables is required in hazardous areas

Engineering Contradiction:

ImprovebandwidthVSAvoidphysical cable access

Core Design Contradiction:

PowerVSEase of operation

Solution Approach 1:

The communication system is segmented into two distinct parts: a wired communication interface for high-bandwidth data transmission within the explosion-proof housing, and a wireless communication interface for external communication. This segmentation allows each interface to optimize its function while avoiding the need to route physical cables through hazardous areas.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The controller acts as an intermediary that receives high-bandwidth data through wired links from circuit breakers and sensors, then processes and transmits the data through wireless links to external devices. This intermediary function separates the high-bandwidth wired connection from the wireless external communication.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250264865A1Wirelesshart connectivity for circuit breakers in an explosion-proof housing for health/performance monitoring

Publication Date: 2025.08.21 APPLETON GROUP LLC

AI summary

A controller may be positioned within an explosion-proof housing in a process control system. The controller may be connected to circuit breakers within the explosion-proof housing via wired communication links, and connected to devices positioned external to the explosion-proof housing via wireless communication links. The wireless communication links may have lower bandwidth than the wired communication links. The controller may include one or more processors and one or more memories storing a set of computer-executable instructions that cause the controller to: receive, from the breakers via the wired communication links, data associated with the operation of the circuit breakers; generate messages based on the data associated with the operation of the circuit breakers; and send, via the wireless communication links, the messages to the devices positioned external to the explosion-proof housing.