Air Conditioner Copper Theft Detection via Pressure and Power Sensing
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Solution Overview
Problem
Air conditioning systems, particularly those with copper components, are vulnerable to theft due to rising copper prices, and existing alarm systems lack effectiveness in aiding law enforcement in identifying and apprehending thieves, as they often rely on visual deterrents and do not provide sufficient evidence for identification.
Innovation Solution
A monitoring system that combines pressure and power sensors to detect anomalies in air conditioning systems, activating an alarm if there is a loss of pressure or power, which can be connected to a security system for remote monitoring and automatic notification, thereby serving as both an anti-theft device and equipment safety monitor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If cameras are used to monitor air conditioners, then visual deterrence is provided, but the thieves' identities remain hidden and law enforcement cannot apprehend them
Solution Approach 1:
The patent replaces passive optical monitoring (cameras) with active acoustic monitoring (microphones). The acoustic sensor captures audio evidence of thieves' conversations, movements, and identifiers, which can be analyzed to identify and apprehend thieves, thereby substituting a mechanical/optical system with an acoustic sensing system that provides actionable intelligence.
2Object-affected harmful factors
If air conditioners are placed on roofs to deter theft, then accessibility is reduced, but thieves can still access them and the cost of installation increases
Solution Approach 1:
The patent introduces an acoustic monitoring device as an intermediary between the air conditioner and the thief. This device detects and records acoustic signatures of theft attempts, providing evidence for law enforcement without requiring physical relocation of the air conditioner. The intermediary captures information about the thief's presence and actions, enabling identification while keeping the air conditioner in its original accessible location.
3Reliability
If traditional alarm systems are used, then basic security is provided, but they do not provide sufficient evidence for law enforcement to identify and apprehend thieves
Solution Approach 1:
The patent implements feedback by capturing acoustic evidence and making it available for analysis. The acoustic sensor continuously monitors the environment, records theft-related sounds, and provides this information to law enforcement through appropriate channels. This feedback loop transforms the security system from a simple alarm that only alerts to a system that also collects and provides actionable intelligence for thief identification and apprehension.
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
The system effectively alerts authorities of potential copper theft by activating an alarm when pressure or power anomalies are detected, providing evidence and aiding in the apprehension of thieves, while also serving as a comprehensive monitoring solution for air conditioning equipment.
Implementation Method 1
a pressure sensor for detecting the pressure of the fluid of the air-conditioner
Implementation Method 2
a power sensor for detecting the presence of supply voltage supplied to the air-conditioner and applied voltage which is applied to the air-conditioner
Data Source
AI summary
A monitoring system for monitoring an air-conditioner may include a pressure sensor for detecting the pressure of the fluid of the air-conditioner, a power sensor for detecting the presence of supply voltage supplied to the air-conditioner and applied voltage which is applied to the air-conditioner, an activation device to activate an alarm based upon the detection of the pressure from the pressure sensor, the detection of the supply voltage to the air-conditioner and the detection of the applied voltage to the air-conditioner. The activation device may be activated based only on the loss of pressure detected by the pressure sensor, and the activation device may not be activated if the supplied voltage is detected. The activation device may be activated when both the supplied voltage is detected and the applied voltage is not detected, and the activation device may be connected to a disconnect switch to detect the supplied voltage. The activation device may include a first match resistor to complete a closed loop circuit to the alarm system, and the activation device may include a second match resistor which is approximately the same impedance as the first match resistor.