Wireless Surveillance System with DVR-Based Remote Querying

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Solution Overview

Problem

Existing video surveillance systems are often wired, difficult to install, costly, and lack secure wireless capabilities for remote access and control, failing to provide high-quality input capture and data transfer for surveillance environments.

Innovation Solution

A wireless surveillance system comprising a wireless input capture device (ICD) and a digital input recorder (DIR) that enables secure, two-way wireless communication for remote access and control, allowing for easy setup and operation via a remote server computer or internet connection, with features like motion detection, video compression, and secure data storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If wired video surveillance systems are used, then reliable data transfer and storage are achieved, but installation becomes difficult and costly

Engineering Contradiction:

Improvedata transfer reliabilityVSAvoidinstallation ease

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent replaces wired mechanical connections with wireless communication technology. The digital video recorder communicates with input capture devices and remote servers via wireless signals, eliminating the need for physical cables while maintaining reliable data transfer and storage capabilities.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The digital video recorder is designed as a multi-functional device that performs recording, wireless communication, data transfer, and remote access control. This universal design simplifies installation by consolidating multiple functions into a single device that can operate independently without complex wired infrastructure.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of manufacture

If wireless surveillance systems are implemented, then installation simplicity is improved, but security against wireless interception deteriorates

Engineering Contradiction:

Improveinstallation easeVSAvoidwireless interception risk

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a secure wireless communication protocol as an intermediary layer between the digital video recorder and remote devices. This intermediary ensures that wireless transmissions are encrypted and authenticated, preventing direct interception while maintaining the simplicity of wireless installation.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system uses temporary, single-use security credentials and session keys for each wireless connection. These disposable security elements are generated dynamically and discarded after use, providing secure temporary protection without requiring complex long-term security infrastructure.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Adaptability or versatility

If remote access capabilities are added, then system versatility is improved, but device complexity increases

Engineering Contradiction:

Improveremote access capabilityVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent creates a virtual copy of the surveillance system accessible via wireless network. Remote users access a replicated interface that mirrors the local system's functionality, allowing them to view, record, and control without interacting with the physical hardware complexity. This virtual layer simplifies the user experience while maintaining full system capability.

Inventive Principle:

Principle #26Copying

4Measurement precision

If high quality input capture is required, then surveillance precision is improved, but data transfer requirements increase

Engineering Contradiction:

Improveinput capture qualityVSAvoiddata transfer volume

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

The digital video recorder performs preliminary compression and processing of high-quality input capture data before wireless transmission. By pre-compressing the data and selectively transmitting only essential information, the system maintains high surveillance precision while reducing the volume of data that requires transfer over the wireless network.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS7508418B2Wireless video surveillance system and method with DVR-based querying

Publication Date: 2009.03.24 TYCO FIRE & SECURITY GMBH

AI summary

A surveillance system and method for activating communication between at least one wireless input capture device ICD(s) and a corresponding digital input recorder (DIR) and/or another ICD, including the steps of providing base system; at least one user accessing the DIR via user interface either directly or remotely; the DIR and/or ICD searching for signal from the ICD(s) and establishing communication with them, and the DIR polling for information posted by a remote server computer (RSC) based upon user inputs thereto, for providing a secure surveillance system having wireless communication for monitoring a target environment.