Body-Worn Camera Data Transfer with Docking-Station Recorder Buffering

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Solution Overview

Problem

Existing data management systems for body worn cameras are vulnerable to network failures, require expensive and replaceable docking stations, and lack flexibility in supporting multiple data management systems.

Innovation Solution

A system comprising a body worn camera, a docking station with minimal intelligence, and a separate recorder for intermediate data storage, allowing secure and flexible data transfer to a data management system over a local area network.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If continuous wireless transfer is used, then data transfer convenience is improved, but system reliability deteriorates due to network connection failures

Engineering Contradiction:
Improvedata transfer convenienceVSAvoidsystem reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The docking station serves as an intermediary device between the body worn camera and the data management system. It provides a reliable wired connection for data transfer, eliminating the unreliability of wireless networks while maintaining ease of operation through automatic data transfer when the camera is docked.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The docking station includes local storage capacity to buffer data temporarily. If the network connection to the data management system fails, the data is safely stored in the docking station's storage, preventing data loss and ensuring reliability while maintaining the convenience of automatic transfer.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Reliability

If docking station with integrated storage is used, then data security is improved, but system cost deteriorates due to expensive and replaceable components

Engineering Contradiction:
Improvedata securityVSAvoidsystem cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The system is segmented into separate functional components: the body worn camera, the docking station with minimal intelligence and basic storage, and the central data management system with primary storage. This segmentation allows each component to be optimized independently, reducing overall system cost while maintaining data security through the distributed architecture.

Inventive Principle:
Principle #1Segmentation

3Reliability

If docking station is made robust for secure storage, then data security is improved, but device complexity and replacement cost deteriorates

Engineering Contradiction:
Improvedata securityVSAvoiddocking station complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The docking station is designed as a simple intermediary with minimal intelligence, performing only basic functions: receiving the camera, transferring data via wired connection, and providing temporary buffering storage. The complex security and data management functions are relocated to the central data management system, reducing docking station complexity and replacement cost while maintaining overall data security.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Quantity of substance

If local storage capacity of camera is increased, then data retention is improved, but data transfer security deteriorates due to overwrite risk before transfer

Engineering Contradiction:
Improvedata retention capacityVSAvoiddata transfer security
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The docking station provides a buffer storage area that temporarily holds data from the camera before it is transferred to the central data management system. This cushioning storage prevents data overwrite by ensuring that incoming data is safely buffered until successful transfer, thereby maintaining data transfer security even when camera storage capacity is limited.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentEP4220535B1System and method for handling data captured by a body worn camera
Publication Date: 2025.07.02 AXIS
  • EP4220535B1 patent drawingFigure 1~2
  • EP4220535B1 patent drawingFigure 3
  • EP4220535B1 patent drawingFigure 4

AI summary

A system (1) for handling data captured by a body worn camera (2) is disclosed. The system (1) comprises a body worn camera (2), a docking station (3), and a recorder (4). The camera (2) comprises a local storage device (6). The docking station (3) comprises a data interface (7) for connecting the local storage device (6) to the docking station (3), and a first network interface (8) for connecting the docking station (3) to the recorder (4). The recorder (4) comprises a second network interface (9) for connecting the recorder (4) to the docking station (3), and a recorder storage device (10). The recorder (4) is arranged to retrieve the captured data from the camera (2) and store it in the recorder storage device (10), and comprises a third network interface (11) for transfer of stored data to a data management system (5). A method for handling data captured by a body worn camera (2) is also disclosed.