Managed Access System Contraband Device Geolocation
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Solution Overview
Problem
The challenge in secure facilities such as correctional institutions is the difficulty in preventing the smuggling and detection of contraband mobile wireless devices, as advancements in technology have made them smaller and easier to smuggle, and existing detection systems are costly and require significant effort to operate effectively.
Innovation Solution
A managed access system that utilizes a network of antennas and geolocation devices to identify and manage mobile wireless devices within a facility, blocking unauthorized devices from external communications while allowing authorized devices to connect through a private wireless network or commercial networks as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed, portable and handheld detection systems are deployed to detect and locate contraband devices, then device detection capability is improved, but system cost and operational effort increase significantly
Solution Approach 1:
The managed access system performs multiple functions simultaneously: it provides authorized wireless access to legitimate devices and detects/locates contraband devices using the same infrastructure. The system leverages the distributed antenna system and signal processing capabilities already present for providing service to also detect unauthorized devices, eliminating the need for separate dedicated detection equipment.
Solution Approach 2:
The system uses the contraband devices' own transmissions to detect and locate them. By monitoring wireless signals within the facility, the system automatically identifies devices attempting to connect or already connected, using the devices' self-generated signals rather than requiring active probing or separate detection mechanisms.
2Reliability
If increased effort and personnel are invested in operating detection systems, then operational efficacy improves, but operational costs increase
Solution Approach 1:
The managed access system operates autonomously without requiring significant human intervention. The system automatically monitors wireless signals, identifies contraband devices, determines their locations, and generates alerts or notifications. This automation eliminates the need for continuous manual monitoring and reduces personnel costs while maintaining high operational efficacy.
Solution Approach 2:
The system continuously monitors the wireless environment and provides real-time feedback about device presence and location. This automated feedback loop enables rapid response to detected contraband devices without requiring manual inspection or interpretation, improving operational efficacy while minimizing human resource requirements.
3Reliability
If physical security measures are strengthened to prevent smuggling, then prevention capability is improved, but smuggling methods continue to evolve making prevention difficult
Solution Approach 1:
Instead of focusing on preventing smuggling at entry points, the system inverts the approach by detecting contraband devices after they have entered the facility. The managed access system monitors wireless signals throughout the facility, identifying and locating contraband devices regardless of how they were smuggled in, making the detection method independent of the smuggling technique used.
Solution Approach 2:
The system uses wireless signal monitoring as an intermediary method to detect contraband devices. Rather than relying on physical inspections or security screenings at entry points, the system employs radio frequency monitoring to identify devices based on their electromagnetic signatures, providing a non-intrusive detection mechanism that works regardless of physical smuggling methods.
Data Source
AI summary
A managed access system for mobile wireless devices (MWDs) in a facility that is geographically within a wireless communications network includes a plurality of antennas arranged at the facility. Radio equipment is coupled to the antennas. A management access controller cooperates with the radio equipment to communicate with a given MWD within the facility, block outside communications via the wireless communications network when the given MWD is an unauthorized MWD, and provide outside communications when the given MWD is an authorized MWD. The management access controller cooperates with at least one MWD geolocation device to locate the given MWD within the facility.