Display manager

Purpose

The display manager is designed for managing the video walls and attracting the operator's attention.

Functions

The display manager has the following functions:

1. Management of the video surveillance monitors added to the various computers' displays.
2. Create, edit, and delete layouts of video surveillance monitors.
3. Create temporary layouts of the video surveillance monitors.

Interface description

The interface of the display manager is shown in the figure:

The Screen activation group

The Screen activation group is used for selecting and activating the required display.

The Computer drop-down list is used for selecting a computer to which the required display is assigned. You can specify the list of computers available in the Computer drop-down list during the system configuration—see Configuring the Display manager.

The Display drop-down list is used for selecting the required display. In order for the display to be available in this list, it must be assigned to a computer—see Assigning the displays to the operator workstations.

Clicking the Activate button is similar to selecting display on the main control panel (see Main control panel). When you click the Activate button, the interface windows created on the basis of the selected Display object are displayed on the desktop.

The Setting and activation of monitors group

The Setting and activation of monitors group is used for configuring and applying the layouts of the video surveillance monitor.

The Monitor drop-down list is used for selecting the required video surveillance monitor, created on the basis of the Display object selected in the Screen activation group.

You can select existing layouts as well as delete and create new layouts (the - and + buttons, respectively) in the layout list. You can search for layouts by name using the Layout field. To change the order in which the layouts are displayed, use the ▼ and ▲ buttons.

The camera list displays the available cameras. You can search for a camera by name or ID in the Camera field. You can add cameras to the layout only once. The cameras that are already added to the layout are highlighted in gray. You can drag the cameras from this list onto the layout using the left mouse button. When you drag the camera, the frame displayed on the camera at the moment when it was added to the layout is displayed on the layout.

Below the camera list, the camera preview is displayed.

The buttons for managing the layouts:

• Apply—save changes in the layout.
• Cancel—cancel changes and go to the last saved layout.
• Show—display the selected layout on the video surveillance monitor. The layout is shown in its last saved version and only if it needs to be displayed on the computer selected for screen activation.
• Clear—remove all cameras from the layout.
• Refresh—refresh the frames in the camera preview windows on the layout.
• Layouts—select a standard layout from the list:

The layout creation panel allows you to get a visual idea of how the layout will look on the video surveillance monitor. On this panel, you can also drag the surveillance windows, add new rows and columns, and resize the surveillance windows using the >, <, ∨, ∧ buttons. If the layout was created using the display manager, then the frames displayed on the camera at the moment when it was added to the layout are displayed in the surveillance windows. If the layout is created using the video surveillance monitor, then in order to display these frames in the surveillance windows, you must click the Refresh button.