# US 2025/0148902 A1 · Integrated security system for substation monitoring and detection using distributed acoustic sensing, drones, and security cameras

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- Number: US 2025/0148902 A1
- Document ID: US20250148902A1
- Status: Published application
- Kind: A1
- Application number: 18/935,489
- Filed: 2024-11-02
- Published: 2025-05-08
- Earliest claimed: 2023-11-03
- Assignees: NEC Laboratories America, Inc.
- Applicants: NEC Laboratories America, Inc.
- Inventors: Yangmin DING; Ting WANG; Yue TIAN; Sarper OZHARAR; Zhuocheng JIANG; Yanchao WANG
- Web page: https://patentgrep.com/patent/US20250148902A1

## CPC

- G08B 25/14: Central alarm receiver or annunciator arrangements
- G01H 9/004: {using fibre optic sensors (light guides per se G02B6/00, acousto-optical devices specially adapted for gating or modulating in optical wave guides G02F1/125)}
- G06V 20/52: Surveillance or monitoring of activities, e.g. for recognising suspicious objects (recognising microscopic objects G06V20/69)
- G08B 13/1672: {using sonic detecting means, e.g. a microphone operating in the audio frequency range}
- G08B 29/188: {Data fusion; cooperative systems, e.g. voting among different detectors}
- G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G01H: MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING

## Abstract

Disclosed are integrated systems and operating methods that provide an integrated security system for substation monitoring and detection that effectively combines the strengths of distributed acoustic sensing, drones, and security cameras for comprehensive protection. The integrated system comprises a DAS system configured to monitor vibrations and acoustic signals along the length of fiber optic cables, one or more drones equipped with advanced sensors for aerial surveillance, and a plurality of security cameras installed throughout the substation to capture real-time video feeds and provide visual confirmation of activities. A central control system integrates and analyzes data from the DAS system, drones, and security cameras, and utilizes a novel, advanced algorithm, named Substation Security Analytics (SSA), specifically designed for the unique challenges associated with substation security monitoring and detection.

## Claims

### Claim 1

An integrated security system comprising:
a distributed fiber optic sensing system;
one or more aerial drones; and
one or more security cameras;
wherein the integrated security system is configured to receive, integrate, and analyze data produced by the distributed fiber optic sensing system, the one or more aerial drones, and the one or more security cameras.

### Claim 2 (depends on 1)

The system of claim 1 wherein the distributed fiber optic sensing system (DFOS) is a distributed acoustic sensing/distributed vibration sensing (DAS/DVS) system.

### Claim 3 (depends on 2)

The system of claim 2 wherein the one or more aerial drones provide real-time video feeds for visual confirmation of incidents.

### Claim 4 (depends on 3)

The system of claim 3 wherein the one or more security cameras provide real-time video feeds for visual confirmation of activities.

### Claim 5 (depends on 4)

The system of claim 4 configured to provide machine learning and artificial intelligence techniques to the data received from the distributed fiber optic sensing system, the one or more aerial drones, and the one or more security cameras.

### Claim 6 (depends on 5)

The system of claim 5 configured to extract relevant features from the received data including acoustic signatures, visual cues, and motion patterns.

### Claim 7 (depends on 6)

The system of claim 6 configured to classify the extracted relevant features.

### Claim 8 (depends on 7)

The system of claim 7 configured to detect potential security threats from the classified extracted relevant features.

### Claim 9 (depends on 8)

The system of claim 8 configured to learn from historical data received from the distributed fiber optic sensing system, the one or more aerial drones, and the one or more security cameras.

### Claim 10 (depends on 9)

The system of claim 9 configured to respond to detected potential security threats by initiating incident response procedures.