Sensor Jamming Detection in Connected Home Security Systems
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Solution Overview
Problem
Connected home security systems using wireless technology are vulnerable to intentional jamming, which can render parts of a premises unprotected and go unnoticed by the main controller, as existing technologies do not effectively detect and respond to jamming signals.
Innovation Solution
A connected home system with a sensor device that detects jamming signals above a predetermined threshold, generates a jamming alarm event, and sends it to a controller device, which can then notify users or a monitoring center, thereby initiating an alarm and ensuring protection even in noisy RF environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless technology is used for security systems, then the security vulnerability of severed landline connections is eliminated, but the system becomes vulnerable to targeted jamming attacks
Solution Approach 1:
The patent converts the harmful jamming signal into a beneficial detection opportunity by analyzing RF environment characteristics. When jamming is detected above a threshold, the system interprets this anomaly as a security event and triggers an alarm, transforming the harmful interference into a useful security feature that alerts users to potential attacks
Solution Approach 2:
The system implements feedback by continuously monitoring the RF environment and comparing signal characteristics against established thresholds. When jamming conditions are detected, the system provides feedback through alarm notifications to users and monitoring centers, enabling real-time response to security threats while maintaining normal operation below threshold levels
2Measurement precision
If jamming detection threshold is set low, then jamming attacks are detected more sensitively, but false alarms increase in noisy RF environments
Solution Approach 1:
The patent dynamically adjusts the jamming detection threshold based on environmental conditions and system state. The threshold is set at +10 dBm for the jamming alarm, which balances sensitivity to detect actual jamming attacks while maintaining reliability by filtering out normal RF noise. This parameter optimization resolves the contradiction between detection sensitivity and false alarm prevention
Data Source
AI summary
Concepts and technologies are disclosed herein for alarm initiation when a sensor is intentionally jammed. According to one aspect disclosed herein, a connected home system can include a controller device and a sensor device. The sensor device can include a processor and memory. The memory can store sensor instructions that, when executed by the processor, cause the sensor device to perform sensor operations. In particular, the sensor device can detect a jamming signal originating, for example, from a jamming device that is intentionally attempting to jam operations of the sensor device. The sensor device can determine whether the jamming signal is above a jamming alarm threshold. If the sensor device determines that the jamming signal is above the jamming alarm threshold, the sensor device can generate a jamming alarm event that is directed to the controller device. The sensor device can send the jamming alarm event to the controller device.