Drone Sensor Deployment for HVAC Alarm Verification in Harsh Areas

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Solution Overview

Problem

Existing equipment verification systems in commercial buildings, particularly in HVAC systems, face challenges in rapidly and accurately verifying alarm conditions due to environmental factors such as location, temperature, and the presence of gases, which limits their effectiveness.

Innovation Solution

An unmanned vehicle-based monitoring system that includes an alarm circuit and a vehicle control circuit, which detects failure conditions and generates an equipment verification signal to remotely control the unmanned vehicle to execute tests on building components, enabling quick and accurate verification even in harsh environments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual verification methods are used to check building components, then the verification process can be performed with simple equipment, but the verification cannot be completed in harsh environments such as high temperature, confined spaces, or areas with harmful gases

Engineering Contradiction:
Improveverification capability in harsh environmentsVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

An unmanned vehicle serves as an intermediary between the operator and the building component in harsh environments. The vehicle carries sensors and testing equipment to remotely verify alarm conditions without exposing personnel to dangerous conditions such as high temperature, confined spaces, or harmful gases.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

Manual mechanical verification methods are replaced with an automated unmanned vehicle system equipped with electronic sensors and control circuits. The vehicle autonomously navigates to the target location and executes verification tasks, substituting human operators with an automated mechanical system.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If traditional verification systems are used, then the system structure remains simple, but the verification speed and accuracy are insufficient for rapid alarm response

Engineering Contradiction:
Improveverification speedVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The unmanned vehicle is pre-positioned or rapidly deployed upon receiving an alarm signal. The system includes pre-programmed navigation and verification protocols that enable immediate response to alarm conditions, reducing the time required for verification.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The verification system includes feedback mechanisms where sensor data from the unmanned vehicle is transmitted back to the control system for real-time analysis. This closed-loop feedback enables rapid determination of alarm validity and triggers appropriate responses.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If verification is performed in harsh environments with high temperature and harmful gases, then the verification can reach difficult locations, but the safety of personnel and accuracy of verification are compromised

Engineering Contradiction:
Improvealarm condition verification accuracyVSAvoidenvironmental hazards
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The unmanned vehicle acts as a protective intermediary that isolates verification equipment from harmful environmental factors. Sensors and testing equipment are housed within the vehicle's protected environment, allowing accurate measurements without direct exposure to high temperature, harmful gases, or other hazardous conditions.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The unmanned vehicle creates a controlled, inert environment for the verification equipment. The vehicle's interior maintains stable temperature and atmospheric conditions, protecting sensitive sensors and electronics from the harsh external environment while enabling accurate verification of building components.

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

Data Source

PatentUS11740160B2Systems and methods of alarm triggered equipment verification using drone deployment of sensors
Publication Date: 2023.08.29 TYCO FIRE & SECURITY GMBH
  • US11740160B2 patent drawing
  • US11740160B2 patent drawing
  • US11740160B2 patent drawing

AI summary

An equipment monitoring system includes an unmanned vehicle, an alarm circuit remote from the unmanned vehicle, and a vehicle control circuit remote from the unmanned vehicle. The unmanned vehicle can include a communications circuit and a flight controller. The alarm circuit detects a failure condition of a building component and outputs an indication of the failure condition. The vehicle control circuit receives the indication of the failure condition from the alarm circuit; generates, based on the indication of the failure condition, an equipment verification signal that includes an identifier of the building component, a position of the building component, and a test of the building component to be executed; and transmits the equipment verification signal to the flight controller of the unmanned vehicle via the communications circuit of the unmanned vehicle to cause the unmanned vehicle to execute the test of the building component.