Deployable Netting Restraint for Building Egress Capture
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Solution Overview
Problem
Criminals often escape from public places with stolen goods or after committing crimes due to the lack of effective barriers at common egress and ingress points, allowing them to flee before law enforcement can arrive.
Innovation Solution
A security system comprising a frame with a trolley system and heavy-duty netting that can be activated to drop and lock into position over a suspect, using a triggering device and locks to prevent escape, with netting materials like nylon, steel, or aramid fibers to ensure restraint until law enforcement arrives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heavy-duty netting is used to restrain suspects, then suspect immobilization effectiveness is improved, but device complexity increases due to trolley system and locking mechanisms
Solution Approach 1:
The netting system transitions from a static barrier to a dynamic restraining mechanism. The heavy-duty netting is initially held in a retracted position by locks, then dynamically deployed to envelop and immobilize the suspect. The trolley system allows the netting to move along the rail, transforming the system from a fixed barrier to an active restraining device that adapts to the suspect's position.
Solution Approach 2:
The restraining system is divided into modular components: the heavy-duty netting, the trolley system with wheels, the locking mechanisms, and the rail structure. This segmentation allows each component to perform its specific function independently while contributing to the overall immobilization effectiveness. The netting can be deployed and secured without requiring the entire system to be complex.
2Loss of time
If automatic triggering devices are used to activate the netting, then response time is improved, but device complexity increases due to integration of sensors and control systems
Solution Approach 1:
The triggering devices are pre-positioned and ready to activate the locking mechanisms at the moment of need. Motion detectors or pressure-sensitive plates are installed in advance, continuously monitoring the area. When a suspect enters the detection zone or applies pressure to the plate, the system immediately activates, releasing the locks and deploying the netting without requiring manual intervention or complex real-time processing.
3Ease of operation
If the netting is designed to be easily removable for law enforcement access, then ease of operation is improved, but reliability decreases as suspects may escape
Solution Approach 1:
The locking mechanisms serve as an intermediary between the netting and the suspect. The locks secure the netting in the lowered position, maintaining reliability and preventing escape. When law enforcement needs to access the suspect, they can activate the triggering device or manually operate the locks to release the netting. This intermediary locking system allows the netting to be both securely restrained and easily removable when needed.
Data Source
AI summary
A security system may use a netting to apprehend suspects of crime and prevent them from leaving the scene of the crime. The security system can include a netting, trolley system, frame, and triggering device. The netting can be connected to the trolley system. The trolley system can be supported by the frame, which can cover points of egress and ingress of buildings. When the triggering system is activated, netting can travel down the trolley system to apprehend the suspect until law enforcement has a chance to arrive on the scene.