Managed Access System for Contraband Device Detection
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Solution Overview
Problem
The smuggling of contraband mobile wireless devices into secure facilities, such as correctional facilities, poses a significant security risk due to advancements in technology and various smuggling methods, making it difficult for physical security measures alone to prevent their introduction and detection.
Innovation Solution
A managed access system (MAS) is implemented, comprising a network of antennas, radio equipment, and security assessment devices, which communicates with mobile wireless devices within the facility to block unauthorized access to the commercial wireless network while allowing authorized devices to connect, using a combination of directional antennas, geolocation sensors, and monitoring devices to determine and manage access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical security measures are used to prevent smuggling of mobile wireless devices, then facility security is improved, but the effectiveness deteriorates due to various smuggling methods and technology improvements
Solution Approach 1:
The patent replaces physical security measures with an electronic communication monitoring system. The system uses wireless communication technology to detect, locate, and track mobile wireless devices within the facility, substituting mechanical surveillance and physical inspection methods with automated electronic detection that can penetrate various smuggling methods.
Solution Approach 2:
The patent introduces communication signals as an intermediary to detect and track devices. By monitoring wireless communications between potential contraband devices and external networks, the system creates an indirect detection method that doesn't require direct physical contact or visual inspection, thereby overcoming various smuggling techniques.
2Difficulty of detecting and measuring
If detection systems are deployed to find contraband devices inside facilities, then device detection capability is improved, but operational costs and personnel requirements increase
Solution Approach 1:
The patent enables contraband devices to detect themselves through their inherent communication functionality. Unauthorized devices automatically attempt to communicate with external networks, and this self-generated communication traffic is captured and analyzed by the detection system, eliminating the need for active scanning or complex detection algorithms.
Solution Approach 2:
The system establishes a feedback loop where communication attempts by potential contraband devices generate detectable signals that confirm their presence and location. This feedback mechanism allows the system to continuously monitor and identify unauthorized devices without requiring additional active probing or complex detection infrastructure.
3Reliability
If access management systems are used to deny network access to unauthorized devices, then security risks are reduced, but legitimate communication needs may be restricted
Solution Approach 1:
The patent applies different access control policies to different devices based on their authorization status. Authorized devices receive full network access while unauthorized devices have their communications blocked. This localized differentiation of access rights allows the system to maintain security while preserving legitimate communication needs without blanket restrictions.
Solution Approach 2:
The system dynamically changes communication parameters such as access permissions, signal blocking, and network connectivity based on device authorization status. By adjusting these parameters selectively for different devices, the system can deny access to contraband devices while maintaining normal communication for authorized devices, achieving both security and flexibility.
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 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. At least one security assessment device is arranged at the facility. At least one operator station is configured to cooperate with the management access controller and the at least one security assessment device.