Door System Communication Bus for Component Integration

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Solution Overview

Problem

Existing door systems face challenges in efficient and smooth installation, reliable operation, and secure protection against unauthorized entry due to the complexity of integrating multiple components from different trades, leading to reconciliation errors and inefficiencies.

Innovation Solution

A door system with a control unit connected via a communication bus to other door components, enabling centralized control, efficient communication, and flexible message exchange for coordinated actions, simplifying installation, maintenance, and operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple door components from different trades are integrated into a door system, then the system can cover different types of applications (motorized door drive, access control, escape route security), but reconciliation errors occur and installation becomes complex

Engineering Contradiction:
Improveapplication coverageVSAvoidinstallation complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The door system is segmented into independent door components (motorized door drive, access control device, escape route security device), each with its own control unit. These components communicate via a communication bus, allowing them to function independently while being integrated into a unified system. This segmentation enables different trades to install their respective components without requiring complex coordination during installation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The communication bus serves as a universal interface that enables all door components to communicate with each other regardless of their specific function. This multi-functional communication infrastructure allows the system to cover various applications (motorized operation, access control, escape route security) while maintaining a standardized integration approach that simplifies installation.

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

2Adaptability or versatility

If multiple door components are integrated into a door system, then different functions can be implemented, but reconciliation errors occur during installation

Engineering Contradiction:
Improvefunctional capabilityVSAvoidinstallation reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

All door components communicate through a standardized communication bus interface, creating homogeneity in the communication protocol and data exchange format. This standardized interface reduces reconciliation errors during installation by providing a uniform method for all components to interact, regardless of their specific functions or manufacturers.

Inventive Principle:
Principle #33Homogeneity

Solution Approach 2:

The communication bus acts as an intermediary that mediates between different door components from different trades. It provides a neutral, standardized interface that translates and coordinates communications between components, reducing direct integration complexity and minimizing reconciliation errors during installation.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If traditional installation methods are used for door systems with multiple components, then installation can be performed by different trades, but efficiency and smooth installation are compromised

Engineering Contradiction:
Improveinstallation easeVSAvoidinstallation efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The system is divided into independently installable components that can be mounted by different trades according to their expertise. Each component connects to the communication bus through standardized interfaces, allowing parallel installation without requiring sequential coordination, thereby improving installation efficiency while maintaining ease of installation by different trades.

Inventive Principle:
Principle #1Segmentation

4Adaptability or versatility

If door components communicate without a standardized protocol, then flexibility in component selection is maintained, but coordination and control become inefficient

Engineering Contradiction:
Improvecomponent selection flexibilityVSAvoidcontrol efficiency
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

A homogeneous communication protocol is implemented across all door components via the communication bus. This standardized protocol enables efficient coordination and control of diverse components while maintaining flexibility in component selection, as long as the components adhere to the communication standard. The uniform interface simplifies control operations without restricting component versatility.

Inventive Principle:
Principle #33Homogeneity

Data Source

PatentEP4050578A1Door system for one or more doors with several door components and a first communication bus
Publication Date: 2022.08.31 DORMAKABA DEUT GMBH
  • EP4050578A1 patent drawingFigure 1
  • EP4050578A1 patent drawingFigure 2
  • EP4050578A1 patent drawingFigure 3

AI summary

The invention relates to a door system (1) for one or more doors. The door system (1) comprises several door components (4, 5, 6, 7, 8, 9, 10, 12, 13), wherein one of the door components (4, 5, 6, 7, 8, 9, 10, 12, 13) is designed as a control unit (13). The control unit (13) and at least one further door component (4, 5, 6, 7, 8, 9, 10, 12) are interconnected via a first communication bus (14).The invention further relates to an access system (20) comprising a door system (1) as described above and a computing unit (16), wherein an image of the door system (1) is stored in the computing unit (16), wherein the door components (4, 5, 6, 7, 8, 9, 10, 12, 13) connected to the first communication bus (14) each include a identifier, wherein the identifiers of the door components (4, 5, 6, 7, 8, 9, 10, 12, 13) are stored as part of the image of the door system (1) in the computing unit (16) and/or wherein past and current operating states of the door system (1) are stored in the computing unit (16). The invention further relates to an access system (20) comprising one or more of the door systems (1) described above, wherein at least one door system (1) comprises an authentication device. The authentication device is configured to receive an access attribute for authentication.