Vacuum Connection Device with Communication Control Unit

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Solution Overview

Problem

Existing vacuum device systems can only connect to a maximum of one operating device due to single communication ports, limiting flexibility and requiring interruptions in connections for multi-device setups, especially in large areas where direct access to PCs is difficult.

Innovation Solution

A connection device with a first connection for a vacuum device and multiple second connections for operating devices, featuring a communication control unit that forwards messages from each operating device to the vacuum device, ensuring sequential processing of requests and prioritization to prevent errors and unauthorized access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single communication port is used for connection, then the device structure is simple, but only one operating device can be connected at a time

Engineering Contradiction:
Improvenumber of connected operating devicesVSAvoidconnection structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The communication interface is segmented into multiple second connections (32, 33) while maintaining a single first connection (31) to the vacuum device. This segmentation allows multiple operating devices to connect simultaneously through separate ports, resolving the contradiction between connection versatility and structural simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection device (30) acts as an intermediary between the vacuum device and multiple operating devices. It receives messages from multiple second connections, manages communication sequencing, and forwards them through the single first connection, enabling multi-device connectivity without requiring the vacuum device itself to have multiple ports.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If multiple operating devices are connected simultaneously, then operational flexibility is improved, but communication control complexity increases

Engineering Contradiction:
Improveaccessibility of operating devicesVSAvoidcommunication control unit
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The communication control unit dynamically manages message routing and timing based on the state of ongoing communications. It monitors which operating device is currently being served and adjusts message forwarding accordingly, providing adaptive control that handles multiple devices flexibly without requiring rigid predefined configurations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system uses feedback mechanisms where the communication control unit monitors communication status from the vacuum device and adjusts its message forwarding behavior. When a message is being processed, the unit receives feedback about the communication state and uses this to control when to accept and forward messages from different operating devices, preventing conflicts while maintaining ease of operation.

Inventive Principle:
Principle #23Feedback

3Reliability

If message forwarding is done without sequencing, then communication speed is fast, but communication errors may occur

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidmessage forwarding delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The communication control unit performs preliminary checks before forwarding messages to determine if the vacuum device is currently engaged in communication. It proactively manages the communication queue and timing, preparing to forward messages at appropriate intervals rather than attempting simultaneous transmission, which ensures reliability while minimizing unnecessary delays.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3620661B1Connecting device, system and method for operating a connecting device
Publication Date: 2021.10.06 PFEIFFER VACUUM GMBH
  • EP3620661B1 patent drawingFigure 1
  • EP3620661B1 patent drawingFigure 2
  • EP3620661B1 patent drawingFigure 3

AI summary

The invention relates to a connection device comprising: a first connection for a vacuum device, in particular a vacuum pump or an accessory unit for a vacuum pump; a plurality of second connections, each for an operating device for the vacuum device; a communication control unit configured for: receiving a first operating message from a first operating device; forwarding the first operating message to the vacuum device; receiving a second operating message from a second operating device after the first operating message has been received; receiving a reply to the first operating message from the vacuum device; and forwarding the second operating message to the vacuum device after the reply has been received.