Smart Window Control API for Coordinated Building Systems

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Solution Overview

Problem

Existing smart window systems lack sophisticated control and monitoring capabilities to effectively integrate with other building systems, such as HVAC, lighting, and security systems, limiting their operational efficiency and compatibility.

Innovation Solution

A platform that enables communication among various building systems through an application programming interface (API), allowing the window control system to interact with other systems like HVAC, lighting, and security systems, enabling data exchange and coordinated control of optically switchable windows and other devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If smart window systems are deployed more widely, then building control and monitoring capabilities are improved, but system complexity and integration requirements increase

Engineering Contradiction:
Improvebuilding control capabilityVSAvoidsystem integration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The window control system is designed with a universal communication interface that enables it to perform multiple functions by interacting with different building systems (HVAC, lighting, security, appliances) through a standardized API, allowing a single system to adapt to various integration scenarios without requiring separate dedicated control systems for each function

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

Solution Approach 2:

An application programming interface (API) is introduced as an intermediary layer between the window control system and other building systems. This API serves as a mediator that standardizes communication protocols and data exchange formats, thereby reducing the complexity of direct integrations between diverse systems while maintaining comprehensive building control capabilities

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If multiple building systems are integrated through API communication, then operational efficiency and energy management are improved, but communication protocol complexity increases

Engineering Contradiction:
Improveoperational efficiencyVSAvoidcommunication protocol complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The API is designed as a universal communication interface that handles multiple building systems (HVAC, lighting, security, appliances) through standardized methods and data formats. This single unified protocol replaces the need for multiple system-specific communication protocols, thereby improving operational efficiency across all integrated systems while maintaining manageable protocol complexity through standardization

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

3Productivity

If window control system interacts with more building systems, then energy management and comfort control are improved, but system reliability requirements increase

Engineering Contradiction:
Improveenergy management efficiencyVSAvoidsystem integration reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The window control system implements feedback mechanisms where it receives status information from integrated building systems (HVAC, lighting, security, appliances) and adjusts window operations accordingly. This feedback loop enables coordinated energy management and comfort control across systems while maintaining reliability through continuous monitoring and adaptive response to system states

Inventive Principle:
Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances the operational efficiency of smart window systems by allowing them to communicate and coordinate with other building systems, improving energy management, comfort, and security while reducing energy consumption and maintenance needs.

Implementation Method 1

a window controller configured to control transitions of at least one optically switchable window

Methodology Applied
Scientific EffectElectrochromism: Electrochromism

Data Source

PatentEP3926572A1Multiple interacting systems at a site
Publication Date: 2021.12.22 VIEW INC
  • EP3926572A1 patent drawingFigure 1A
  • EP3926572A1 patent drawingFigure 1B
  • EP3926572A1 patent drawingFigure 1C

AI summary

Disclosed are platforms for communicating among one or more otherwise independent systems involved in controlling functions of buildings or other sites having switchable optical devices deployed therein. Such independent systems include a window control system and one or more other independent systems such as systems that control residential home products (e.g., thermostats, smoke alarms, etc.), HVAC systems, security systems, lighting control systems, and the like. Together the systems control and/or monitor multiple features and/or products, including switchable windows and other infrastructure of a site, which may be a commercial, residential, or public site.