Underground Penetration Detection System with Modular Pipe Sensors
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Solution Overview
Problem
Current systems for detecting and preventing underground penetration are plagued by high false alarm rates, lack of physical obstacles to halt infiltrators, and inability to easily verify and upgrade the blocking mechanism, especially when tunnels are excavated at greater depths.
Innovation Solution
A network of large-diameter underground pipes with integrated volume and motion sensors, capable of detecting foreign bodies and sending immediate alarm signals, forming a blocking wall that can be easily inspected and reinforced, with the option to increase depth by adding smaller diameter pipe segments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If shock sensors are deployed along the line to detect underground activity, then detection capability is improved, but false alarm rate increases significantly
Solution Approach 1:
The system divides the detection area into multiple segments by deploying sensors at specific intervals along the barrier line. Each sensor monitors a specific segment, allowing precise localization of penetration attempts while reducing the overall false alarm rate through spatial distribution and targeted monitoring zones.
Solution Approach 2:
The patent introduces an intermediary processing system that analyzes sensor signals before generating alarms. This intermediary layer filters out false alarms caused by environmental factors and distinguishes genuine penetration attempts from noise, thereby improving reliability while maintaining detection capability.
2Strength
If underground barriers (metal plates, concrete walls) are constructed to physically block infiltrators, then physical obstruction capability is improved, but repair time increases when breached
Solution Approach 1:
The barrier system is divided into modular segments that can be independently replaced. When one segment is breached, only that specific segment needs to be repaired rather than the entire barrier, significantly reducing repair time while maintaining continuous physical obstruction capability.
Solution Approach 2:
The system pre-positions repair materials and equipment near the barrier, and maintains ready-to-install replacement segments. This preliminary preparation enables rapid response and minimizes the time required to restore the barrier after a breach occurs.
3Area of stationary object
If detection sensors are placed in open underground areas to monitor penetration, then detection coverage is improved, but vulnerability to external nuisances and false alarms increases
Solution Approach 1:
The patent uses enclosed sensor housings and protective barriers that shield detection sensors from external environmental factors such as moisture, temperature changes, and physical interference. This protection maintains detection coverage while eliminating false alarms caused by external nuisances.
Solution Approach 2:
The sensor deployment creates a controlled, protected environment within the barrier structure where detection occurs. This inert environment isolates sensors from harmful external factors while maintaining the ability to detect genuine penetration attempts through the barrier.
4Length of stationary object
If the blocking depth is increased to counter deeper tunnels, then security effectiveness is improved, but system complexity and construction difficulty increase
Solution Approach 1:
The deep barrier system is constructed as a series of stacked modular segments that can be assembled incrementally to achieve greater depths. This segmentation allows the system to be built in manageable sections, reducing construction complexity while achieving the required blocking depth for counter-tunneling security.
Data Source
AI summary
A system for the detection and location for preventing underground infiltration and enable the timely discovery of tunnels and a rapid response is presented. It can therefore prevent prison escapes, attempts to infiltrate security facilities and others which must be protected. The system consists of a network of large-diameter adjacent pipes (1-4 meters, as required) buried underground either vertically or horizontally Inside each pipe there are sensors capable of detecting any foreign body entering the space. The sensors from all the pipes are connected to a control center to provide an immediate information on the location. The upper side of each of pipe has a lid that can be opened to check the source of the alarm and introduce personnel and equipment to handle the infiltrator.