Remote Gas Cabinet Control Using a Portable Interface

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Solution Overview

Problem

Standard gas distribution systems are cumbersome and inefficient for occasional use due to their size, cost, and the need for frequent disconnections and purges, posing safety risks and requiring operators to physically interact with multiple human-machine interfaces for control, which is time-consuming and exposes workers to hazardous gases.

Innovation Solution

A portable data storage and processing system, such as a tablet or smartphone, connected via wireless networks like WiFi or Ethernet, allows remote control of gas cabinets, minimizing hardware and reducing the need for multiple interfaces by using a single system to manage multiple installations with secure communication and advanced control features.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a large integrated control interface is installed in the gas cabinet, then all control parameters can be displayed and controlled, but the gas cabinet size increases and requires dedicated large spaces

Engineering Contradiction:
Improvecontrol interface functionalityVSAvoidgas cabinet size
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The control interface is extracted from the gas cabinet and implemented as a separate portable device (smartphone, tablet, or laptop). The portable device communicates with the gas cabinet via wireless transceiver or ethernet connection, allowing the operator to control the gas cabinet without being physically present at the cabinet location. This extraction eliminates the need for a large integrated display within the cabinet structure.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

A single portable data processing system can serve multiple gas cabinets simultaneously. The portable device runs software that can connect to and control different gas cabinets through their respective communication ports, making one device universal for controlling multiple units rather than requiring dedicated control interfaces for each cabinet.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If the operator controls the gas cabinet from the integrated screen, then direct control is possible, but the operator must be physically present at the cabinet location

Engineering Contradiction:
Improvedirect control capabilityVSAvoidoperator travel time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The portable data processing system acts as an intermediary between the operator and the gas cabinet. The operator interacts with the control interface on the portable device, which then communicates commands to the gas cabinet via wireless or wired connection. This intermediary approach maintains direct control capability while eliminating the need for the operator to physically travel to the cabinet location.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If standard gas cabinets are used for routine long-term production, then reliable gas distribution is achieved, but frequent disconnections and purges create safety risks

Engineering Contradiction:
Improvegas distribution reliabilityVSAvoidoperator exposure to hazardous gases
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The gas cabinet is equipped with automated purge cycles that can be initiated and monitored remotely through the portable control interface. The system automatically performs safety purges without requiring operator intervention or physical presence, allowing the cabinet to service itself for safety maintenance. This eliminates operator exposure to hazardous gases during purge operations while maintaining reliable gas distribution.

Inventive Principle:
Principle #25Self-service

4Reliability

If multiple gas cabinets are controlled separately, then each cabinet has dedicated control, but the number of control interfaces increases

Engineering Contradiction:
Improvededicated control for each cabinetVSAvoidnumber of control interfaces
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

A single portable data processing system can control multiple gas cabinets simultaneously. The control software on the portable device manages connections to different cabinets through their communication ports, allowing one universal interface to replace multiple dedicated control stations. Each cabinet maintains its own control capabilities while being accessible through a single portable device.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3329334B1Remote control of a gas-distribution facility
Publication Date: 2021.03.03 LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE

AI summary

The invention relates to a gas-distribution facility, including: a recess suitable for receiving at least one gas cylinder and having a gas inlet opening and a gas outlet opening; a system of gas pipes that is arranged in said recess and to which said at least one gas cylinder is connected; a gas-distribution system that is connected to said outlet opening and makes it possible to supply a device, characterised in that said facility includes at least one communication port and a programmable controller, said controller being provided with a processor capable of processing data originating at least in part from a portable system for storing and processing data that is separate from the facility.