Flexible surveillance software for network video.

For advanced recording and event management video management software serves as the CORE of professional video surveillance.
From the software interface, operators can, for example, record video continuously, on schedule, on alarm and/or on motion detection or search for recorded events.
Video management software will allow you to, among other things, centrally manage and configure the network video products to your viewing, recording and security preferences.


Define Your Surveillance Needs

The first and most important step in implementing a video surveillance installation is determining the goal of your surveillance application. It is a good idea to map out where you want video surveillance to take place and for what purpose (i.e. surveillance overview, identification). This will determine the type and number of network cameras, as well as other components to install and can influence the overall cost of the installation.

Select Network Cameras

Define the scene and application needs — To determine the type of network cameras required, as well as the number of cameras needed to adequately cover an area, you first need to determine the scene or environment and the goal of the surveillance application. The purpose will determine the placement of the camera, the type of camera and camera features required (e.g. progressive scan, megapixel for exceptional details, audio, security features) and lens adjustment/type (normal, telephoto or wide angle). A security operator using a PTZ or dome camera can cover a large area and capture different images for different purposes.
In many cases, different cameras will be needed to capture images for different purposes (i.e. one camera providing a full overview image for capturing an incident in action, and another camera for close-up views of a person/object for identification purposes).

Application features

Determine your application purpose — simple remote viewing or intelligent surveillance system with advanced event management, input/output triggers, audio component? The application purpose will determine, among other things, a required functionality of video management software. Video management software is an important component of an IP-Surveillance system because it effectively manages video for live monitoring and recording.

Viewing and recording needs

Determine when and how often you need to view and record — day, night and/or weekends? Schedule the needs for every scene.

Event-triggered frame rate

Full frame rate on all cameras at all times is more than what is required for most applications. With the configuration capabilities and built-in intelligence of the network camera/video server and/or video management software, frame rates under normal conditions can be set lower, e.g. 1 to 3 fps, to dramatically decrease bandwidth consumption. In the event of an alarm, i.e. if motion detection is triggered, the recording frame rate speed can be automatically increased to a higher frame rate.

Calculate storage requirements

In order to appropriately calculate the storage requirements of a network surveillance system, there are a number of elements to factor in. Roughly:
  1. Image size x frames per second x 3600s = KB per hour / 1,000 = MB per hour
  2. MB per 24h x requested period of storage = Storage need
  • The size of an average image is about 15 KB.

Calculate bandwidth requirements

Network video products utilize network bandwidth based on their configuration. Bandwidth usage depends on five criteria: image resolution, compression type, compression ratio, frame rate and image complexity:
  • Image size x number of frames per second x 8 Kbit/s = bandwidth use of one camera in Kbit/s.
The above criteria can be set either in a video management software or in the network camera or video encoder product itself. A simulation-based calculators helps to provide guidance on a network video product’s bandwidth and storage requirements.

Components to consider
Choose network camera
Choose hardware
PC Server and Client
Bandwidth consumption
Storage needs

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