Irrigation Alarm Device for Copper Theft Detection
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Solution Overview
Problem
Conventional theft prevention methods, such as motion detecting alarm systems, video surveillance, and electric fencing, are inadequate for protecting copper wire in remote and exposed agricultural irrigation systems due to false alarms, power limitations, and high maintenance costs, making them impractical for effectively preventing metal theft.
Innovation Solution
An alarm system that attaches to existing irrigation control systems, monitoring copper wiring and activating audio and visual alarms, as well as an automated phone dialer, with a backup power supply and remote radio transmission to alert authorities or owners of potential theft, minimizing costs and overcoming remote location challenges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If motion detecting alarm systems are used to protect irrigation systems, then theft detection capability is improved, but false alarms increase due to wildlife and environmental factors
Solution Approach 1:
The alarm system is segmented into multiple independent sensor units distributed along the irrigation system, each monitoring specific zones. This allows the system to identify the location and nature of disturbances more accurately, reducing false alarms from wildlife while maintaining theft detection capability.
Solution Approach 2:
The system uses the existing irrigation system conductors as intermediary elements to transmit alarm signals and power, eliminating the need for separate communication infrastructure. This leverages the already-present electrical infrastructure to reduce system complexity and cost.
2Reliability
If video surveillance systems are deployed to monitor irrigation equipment, then continuous monitoring capability is improved, but power consumption and cost increase
Solution Approach 1:
The alarm system operates periodically rather than continuously, activating sensors and alarms only when specific conditions are detected. This periodic operation significantly reduces power consumption compared to continuous video surveillance while maintaining effective monitoring capability.
Solution Approach 2:
The system uses the irrigation system's existing power infrastructure to supply power to alarm components, eliminating the need for separate power sources. The conductors already present in the irrigation system serve dual purposes: water delivery control and alarm system power/communication.
3Strength
If electric fencing is constructed to protect irrigation systems, then physical protection is improved, but installation and maintenance costs increase
Solution Approach 1:
The alarm system integrates multiple functions into a single system: theft detection, alarm notification, and communication all through the existing conductor infrastructure. This multi-functionality eliminates the need for separate protective structures like fencing, reducing installation and maintenance costs.
Solution Approach 2:
The system replaces mechanical/physical protection methods (electric fencing) with an electronic alarm-based approach. Instead of creating physical barriers, the system uses electrical signals and alarms to detect and deter theft, significantly reducing installation and maintenance requirements.
4Reliability
If conventional security systems are installed in remote locations, then theft prevention capability is improved, but system complexity and cost increase
Solution Approach 1:
The alarm system merges the security function with the existing irrigation control system, combining theft prevention capability with the already-present electrical infrastructure. This integration significantly reduces system complexity compared to installing separate conventional security systems in remote locations.
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
Provides effective and economical protection against metal theft by reducing false alarms, ensuring continuous monitoring, and enabling remote notification of potential thefts, thereby deterring thieves and minimizing economic and productivity losses.
Implementation Method 1
The alarm device detects voltage in the irrigation system circuits and if the voltage is present the device logic of the alarm device turns off the alarm device
Implementation Method 2
The alarm system then sends a low voltage, low current down a plurality of electric conductors and the plurality of electric conductors then becomes part of a circuit that energizes a magnetic switch located in the alarm device
Implementation Method 3
The removal of the power source of the alarm device will activate the alarm device's backup power supply and will also trigger an alarm condition
Data Source
AI summary
The invention comprises of a method and alarm device used to prevent metal theft from irrigation systems. The alarm device attaches to a plurality of electric conductor such as copper wiring that is in need of protecting and the preexisting irrigation system circuit. The alarm device detects voltage in the irrigation system circuit and if there is no voltage signals from the irrigation system circuit, then the alarm device automatically breaks the original circuit and inserts itself into the irrigation system circuit. The alarm device then sends a low voltage, low current down the plurality of electric conductors and the plurality of conductors then become part of a circuit that energizes a magnetic switch located in the alarm device. A breach of integrity of the plurality of conductors such as by physical detachment triggers an alarm condition which lead to audio and visual alarms plus activating an automated dialer.