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First project with VideoCAD, step by step

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First project with VideoCAD, step by step

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First project with VideoCAD, step by step

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Problem

 

Let's suppose you have a layout in any of the formats: * .bmp, * .png, * .jpg, * .gif, * .tif, * .emf, * .wmf, * .dxf, * .dwg, * .pdf.

On the layout there are points of interest, which must be monitored.

It is necessary to choose the optimal placement and parameters of cameras.

 

 

Solution

 

 

If this is your first project with VideoCAD, the order of solving the problem may consist of the following steps:

 

       Brief introduction to the interface

 

 

The main window of VideoCAD is called the Graphics window. At the top of the window there is the Main menu and the Toolbar. Using the buttons from the bottom row of the Toolbar,  you can invoke drawing and editing tools. Additional windows can be invoked by the buttons from the top row of the Toolbar.

 

In the center of the Graphics window there is the Graphics area with 2D projection of the layout on which you will draw and place the cameras.

 

During drawing or editing constructions, the Current construction parameter panel appears under the Graphics area. On the panel you can change parameters of the construction, which you draw or edit. When drawing or editing does not occur, the Current construction parameter panel is hidden.

Click to expand
Click to expand

 

Navigation on the layout is convenient using a mouse with a wheel. You can move the layout by the mouse with pressed wheel, scale the layout by turning the wheel.

 

Press Ctrl to reduce scaling step.

 

The sequence: Press right mouse button> Move the mouse> Release the right button forms a black magnification frame.

 

If it is inconvenient to use the wheel mouse, see the buttons on the Toolbar: Move Zoom in and Zoom out

 

 

The initial mode from which all actions begin is called Select / Edit mode. You can switch to the initial mode by clicking the button on the left part of bottom row of the Toolbar or by pressing Esc on the keyboard.

 

VideoCAD employs a context-sensitive help system. This means that the program tries to direct you to the portion of the help system that is most likely to answer your question, based on what you are viewing or doing.

To get detailed information about any component, box or menu item, move the input focus (mouse cursor) to the component and press F1.

To get detailed information about any button on the Toolbar, right click on it then choose What's this? pop-up item..

 

For more information see. Graphics windowGraphics areaCurrent construction parameter panel

 

       Loading  layout (floorplan)

 

1. Choose Main menu, Drawing>Load background> In Horizontal projection.

 

2. In the appeared dialog, select the file of your layout and click Open button. The layout will appear in the Graphics area.

 

3. In the appeared Adjust background dialog click Ruler button.

 

4. By two clicks on the layout specify 2 points, the distance between which you know (for example, length of a wall).

 

5. Type to the Real distance box the distance between the points you know (the length of the wall).

 

6. Click ОК in the Adjust background dialog. The layout will be scaled in such a way that the distance specified by clicks on the layout will become equal to the actual distance entered in the Real distance box.

 

The layout can disappear from the screen - find it by the mouse.

 

 

If the background file format is PDF, then in the Adjust background dialog you can select desired document page and resolution.

If the file format is AutoCAD DXF or DWG, then you can select the sheet of the document, adjust visibility of layers and other parameters.

 

To replace, adjust, move, hide, remove the placed background, use items in the Drawing branch of the Main menu.

 

       Modeling environment

 

Drawing constructions

 

Around the places of interest that should be monitored, right on the layout, outline the elements of buildings with the help of constructions. The construction buttons are located in the middle of the bottom row of the Toolbar.

Outline the walls, columns, and slabs using the Wall and Rectangle tools. Drawing a construction is performed by two clicks on the layout.

 

To draw walls that will require cutting openings or inserting windows or doors, use only the Wall tool.

If necessary, set the thickness and switch the orientation of the wall while drawing it. .

 

 

 

 

Before drawing and during drawing, set parameters of the constructions on the Current construction parameter panel, which will appear below the Graphics area.

 

It is important to set the minimum and maximum heights of the construction in 3D (3D Hmin, 3D Hmax).

 

Constructions are drawn on the layout in the form of 2D shapes, but in 3D they are stretched in height from 3D Hmin to 3D Hmax, forming three-dimensional objects.

 

On the Current construction parameter panel you can set coordinates of the base points of the constructions, sizes, material , colors in 2D, 3D, and when printing .

 

To Wall you can set the orientation and thickness .

 

Set of the parameters displayed on the Current construction parameter panel depends on the type of construction you are drawing.

 

To undo / redo the last action, use the buttons on the right side of the bottom row of the Toolbar or Ctrl + Z, Ctrl + Y.

To construct cylindrical surfaces, use the Circle and Arc.

To draw stairs use Stairs.

To construct vertical rectangular planes and to measure distances, use the Line. To measure angles, use Angle.

For drawing in 3D plates or any other raster images, use 3D image.

To construct inclined and complex surfaces, use Inclined rectangle.

 

Theoretically, by a set of Inclined rectangles you can draw anything, although it may not be easy.

 

To create oblique objects you can turn vertical constructions into a 3D model. 3D models can be tilted and transformed.

 

More complex objects can be modeled in SketchUP and imported in VideoCAD.

 

Editing constructions

 

 

The sequence: Left mouse click> Mouse movement> The second left click forms a purple selection frame. All constructions within the frame will be selected.

 

You can select constructions one by one by left clicking on their lines.

 

Pressed Ctrl changes the selection logic.

 

You can Cut Copy Paste Move Rotate Scale Mirror the Selected constructions using the buttons on the left side of the bottom row of the Toolbar.

 

To merge contours of intersecting constructions: select the constructions and choose Main menu > Edit> Merge contour.

 

 

To edit a single construction, change its parameters - double-click on any line of the construction. After that, you can change the construction parameters on the appeared Current construction parameter panel and by moving the crimson grips at the base points of the construction.

 

Pressed Ctrl changes result of grip movement.

 

To edit a just drawn construction, click on the Current construction parameter panel.

 

 

       Look in 3D

 

To see your constructions in 3D, open the 3D World window by the button in the right part of top row of the Toolbar.

 

In the 3D World window, you can navigate in 3D space with a wheel mouse.

 

Mouse movement with left button pressed - rotates the layout around the center of the layout.
Mouse movement with right button pressed - changing the "look" direction.
Mouse movement with wheel pressed - moving the layout.
Rotating the wheel - approaching or moving away from an object under the cursor.

 

If you are lost in the 3D World, click the buttons on the Navi tab of the 3D World window.

 

To make view in the 3D World stable while adding new constructions - place any 4 constructions on the corners of your "construction site" - mark its borders.

 

For monitoring your constructions in 3D, you can also open the 3D Video window by the button on the right part of top row of the Toolbar and direct the camera located on the layout at your constructions. Camera control will be discussed below.

 

       Cutting apertures, embedding windows and doors in walls, placing 3D models

 

 

To cut an empty aperture in a wall, open the Aperture in wall tool in the central part of bottom row of the Toolbar and draw a horizontal projection of the aperture directly on the projection of the wall.

 

Set the heights of the aperture on the Current construction parameter panel using the already familiar 3D Hmin and 3D Hmax parameters. In 3D the aperture will extend in height from 3D Hmin to 3D Hmax

 

Apertures can be not rectangular, can intersect, be located one above another.

 

 

 

 

To embed a window or door into the wall, click the 3D model button in the center of bottom row of the Toolbar, select WINDOWS or DOORS folder from the drop-down menu and select the 3D model of a window or a door in the folder.

 

On the Current construction parameter panel, set the height of the 3D model above the ground by one 3D H parameter.

In the adjacent to the left boxes X, Y, Z, you can specify sizes of the 3D model separately along the X, Y, and Z axes.

If the checkbox to the left of chain icon is checked, then changing one of the sizes will change the other sizes to keep proportions of the 3D model.

 

Specify location of the 3D Model by clicking directly on the wall. There is no need to cut an aperture in the wall in advance, a 3D model of a door or window will cut an opening for itself.

 

If during placement of a 3D model, hold Ctrl, then the 3D model will be placed rotated on 90 degrees. If you hold Shift, the 3D model will be rotated on 180 degrees. If you hold Ctrl + Shift, then the 3D model will be rotated on 270 degrees.

 

       Using 3D models

 

 

As well as constructions, 3D models can be selected by the selection frame or clicking. You can Cut Copy Paste Move Rotate Scale Mirror the Selected 3D models using the buttons on the left side of the bottom row of the Toolbar.

 

As well as constructions, a 3D model can be transferred to the editing state by double-clicking, after which its parameters can be changed on the appeared Current construction parameter panel.

 

The library of 3D models can be replenished, you can edit 3D models in the library (change sizes and colors, mirror, change the license plate setting point). For this purpose there is special 3D Models window. You can open it from the Main menu, 3D Models>3D Models window or by clicking on the button on the Current construction parameter panel.

 

It is recommended to avoid overload of the project with details that have no influence on the design decisions. For beautiful images you will be able to add details during the final design of the project. For comfortable work with complex plans, you can turn parts on and off using layers.

Click to expand
Click to expand

 

 

       3D Video window

 

Open the 3D Video window by the button in the right part of top row of the Toolbar.

 

In the window you will see a three-dimensional model of the image from the camera.

 

The image will contain what the only camera on the plan is aimed at.

 

 

       Camera Geometry box

 

Open the Camera Geometry box by the button in the center of top row of the Toolbar.

 

Set parameters of the first camera in the box:

 

1. First, set the Image sensor size, resolution in pixels (Active pixels) and the Aspect ratio. The values ​​of these parameters can be found in the camera specification.

 

 

2. Set the Lens focal length and Camera installation height tentatively. During the design process, you can choose the lens and the optimum installation height.

 

 

3. Set the View area upper bound height equal the maximum height of targets you want to monitor.

 

Set the View area lower bound height to the minimum height you want to monitor.

 

 

 

 

 

 

 

The view area projection on the layout is constructed from the condition of getting in the frame the full space from the lower to the upper bounds of the view area.

 

 

       Pixel density

 

Open the Pixel density box by the button in the center of top row of the Toolbar.

 

In the box you will see a table, in the rows of which show the correspondence:

 

the colors of regions of the camera view area on the layout;
the names of the criteria that the colored regions satisfy (monitoring, detecting, identifying, etc.);
pixel density values (pixel / meter, pixel / feet) at the far borders of the regions;
pictures with the expected pixel density at the far borders of the regions of each color (Resolution);
pictures showing what part of the frame will be occupied by a group of people at the far borders of the regions of each color (Field of View).

 

 

The pop-up menu of the pictures allows you to select other pictures from a list or set your own pictures.

In the Pixel density box, you can select other recommendations (sets of criteria) and customize your own criteria. You can assign different sets of criteria to different cameras in a project.

 

 

By comparing the colors on the colored view area on the layout and in the table, you can estimate pixel density of the camera at each point on the layout. From the pictures in the table, you can estimate with what resolution a person and a license plate can be displayed and what part of the frame they can occupy.

 

       Select position and parameters of a camera

 

Moving the camera:

 

select the camera by left-clicking on its lens;
place the cursor on the lens and press the left mouse button;
without releasing the mouse button, move the camera to a new location;
release the left mouse button.

 

 

Rotating the camera:

 

click on the pink grip at the middle of the far bound of the view area;
move the cursor to a new location;
click again;

 

Pay attention - you need to do 2 clicks.

 

You can select cameras as well as constructions: using the selection frame or by clicking on its lens. Use the Move and Rotate buttons or the pop-up menu to move and rotate the selected cameras.  You can find these buttons on the left of bottom row of the Toolbar.

 

Changing the height of installation

 

It is convenient to change the installation height by selecting a value from the list in the Camera Geometry box.

 

 

Changing lens focal length:

 

click on any of the orange grips at the corners of the far bound of the view area;
move the cursor to a new location;
click again;

 

Pay attention - you need to do 2 clicks.

 

Current value of the Lens focal length can be seen and changed in the Lens focal length combobox in the middle of top row of the Toolbar and in the Camera Geometry box.

 

Changing camera resolution in pixels:

 

It is convenient to change the camera resolution in pixels by selecting values from the list in the Camera Geometry box.

 

By moving and rotating the camera on the layout, choose the optimal installation location. If the camera can be installed at different heights, select the camera installation height in the Camera Geometry box.

 

If you can change the lens, choose the lens focal length by moving the grips at the corners of the view area or by selecting values in the comboboxes.

 

If you can change model of the camera, select the resolution in pixels in the Camera Geometry box.

 

Watch the model of image from the camera in the 3D Video window.

 

Watch the coverage of the colored regions on the layout. Look at the matching colors of the regions and the resolution in the table in the Pixel density box.

 

Achieve optimal placement of the camera, so that the places of interest on the layout are covered by regions with the colors corresponding to the required pixel density, and in the 3D Video window all targets of surveillance are visible

 

If the pixel density at the point of interest is not enough, then you can increase it in several ways:

 

 

Move the camera nearer to the point of interest

 

The advantage of this solution is reduction of sensitivity to shading from casual obstacles.

An undesirable effect will be a narrowing of the view area near the point of interest. It may also be technically impossible to fasten the camera closer or place the cable.

 

When the camera approaches the target, the installation height of the camera begins to play a large role.

 

 

Reduce installation height

 

Reducing the height of the installation not only brings the camera nearer to the point of interest, but also makes the angle, under which faces get into the frame, more beneficial for recognition.

Undesirable effects are

reduced vandal-proofness and

increased sensitivity to shading by casual obstacles.

 

The smaller the distance from the camera, the greater influence of the height of the installation.

 

 

Increase lens focal length

 

It will lead to increase of pixel density at the same distance from the camera, but also to narrowing the view area.

 

The advantages of this solution against moving camera nearer to the point of interest are the freedom to choosing camera location and good vandal-proofness.

Minus - increased sensitivity to shading from casual obstacles.

 

 

Increase camera resolution in pixels

 

The pixel density will increase without changing size of the view area.

But choosing a camera with higher resolution will increase the cost of the project. In addition, high-resolution cameras, as a rule, have the worst light sensitivity or reduce their resolution in low light conditions.

 

 

Thus, the choice of position and parameters of a camera is a task with large number of variables. VideoCAD is designed to help in solving such problems.

 

Note that a fragment of the area of interest, bounded by a yellow frame, is shown in a green frame with the real camera resolution. This is how the PiP tool works (picture in picture).

To enable PiP, enable the Image processing, clear the item in the Main Menu of the 3D Video window, Speed> Disable image processing.

Specify a place for the yellow frame by clicking by the middle mouse button (wheel) on the image.

To change options of the PiP mode, right-click on the image and switch to the PiP tab of the appeared Image parameter panel.

 

See more: PiP

 

       Many cameras in the project

 

To create a copy of a camera:

 

select the camera by clicking on its lens or by the selection frame;
Copy and paste the camera using the buttons on the left side of bottom row of the Toolbar Copy Paste or Ctrl+C > Ctrl+V.

 

 

To create a new camera with default parameters, use the New camera button on the left of top row of the Toolbar.

 

Parameters in the dialog can be left unchanged.

 

 

You can select, copy and paste several cameras at a time, you can do it together with constructions and 3D models.

 

 

 

 

 

Active camera

 

A camera that can be controlled is called the Active camera.

 

The parameters and images of the active camera are available in the program windows.

 

The active camera icon is highlighted in red.

 

 

To activate any camera:

 

double click on its lens;
or select its name in the Active Camera list in the left part of the top row of the Toolbar.

 

 

Place and adjust new cameras on the layout as well as the first camera.

 

       View of the view area projection and shadows from obstacles

The group of buttons on the left side of top row of the Toolbar controls the view of the view area projection of the active camera on the layout and in 3D. There are a lot of combinations of these buttons with the drop-down menus. You can read about them later and try how they work. At the first stage of learning, leave these buttons in default positions.

 

If there are selected cameras, then these buttons are colored by crimson and control all the selected cameras at once.

 

The Shadow button controls calculation of shading the view area from surrounding objects.

 

 

To enable shadow calculation, select Within projection in the drop-down menu of the button. To turn off shadows for the active camera, select Off.

 

 

Automatic calculation of shadows is carried out only for the active camera. For other cameras, shadows are displayed from memory. If you need to recalculate shadows for a particular camera - activate it. To recalculate shadows for all selected cameras, click Main menu> View> Recalculate shadows.

 

In the case of a large number of shading objects, the calculation of shadows becomes a complex resource-intensive operation. It is not recommended to keep the shadow calculation turned on permanently.

 

To disable the automatic calculation of shadows (with keeping the already calculated shadows), uncheck the item Main menu> View> Calculate shadows for active camera.

 

While calculating shadows, the red frame flashes on the Shadows button.

 

See more Shadows

 

       Models of cameras

 

Instead of entering camera parameters one by one from the specification, you can select a camera model from the Table of camera models.

You can open the Table of camera models using the button in the center of the top row of the Toolbar.

 

There are 2 tabs in the Table of camera models window:

 

All models - all camera models available in the database;
Used models - models already used in the current project.

 

To select a previously unused camera model, switch to the All Models tab. The tab selector is located in the upper left corner of the Table of camera model window.

 

 

In the table, you can search for the desired camera model using the search bar in the lower left corner of the table.

 

 

 

You can also use filters at the top of the columns between the table cells and the headings.

 

You can filter models by any combination of parameters.

 

 

 

The set of visible parameters in the table is flexibly configured. Try to select predefined parameter sets in the list in the Views panel at the bottom of the table.

 

 

 

Short - a short set of parameters for selecting a model.
Normal - a set of basic parameters from camera specifications.
Extended - extended set of parameters.

 

You can control visibility of individual columns using the menu in the upper left corner of the Table.

 

 

Select by clicking a row with the desired model and click on the button in the lower left corner of the window. At the moment of choosing a model, its parameters will be assigned to the active camera.

 

You can also assign a model to the active camera without the Table of camera models, by selecting the model name in the Model of active camera combobox in the center of the top row of the Graphics window Toolbar. By default, only the models used in the project are listed in the combobox. But you can display all models.

 

See more: Table of camera models, Model of active camera.

 

       Monitor window

 

Open the Monitor window by the button in the right part of the top row of the Toolbar.

 

Select on the layout the cameras you want to display on the monitor.

 

You can select cameras as well as constructions: by the selection frame or by clicking on its lens. To select all cameras, press Ctrl + A.

 

Click on the upper left cell of the Monitor window. A 3D Video window will appear in which images from the selected cameras will be generated and uploaded to the monitor. Wait until the end of the process.

 

In the Main menu of the Monitor window, select: Image> Export to * .html and save the monitor to *.html file.

 

Click on the cell of the html file opened in the browser.

 

See more: Monitor window, Example of a monitor.

 

       Output files

 

Camera layout drawing

 

To save the resulting placement of cameras in a graphic file, use the Main Menu: Drawing> Save As. You can save the drawing in AutoCAD formats (* .dxf, * .dwg) and in other raster and vector formats. File resolution may exceed screen resolution. Saving in different formats has different limitations.

 

Before saving, you will be prompted to change the export settings. At the first stage of mastering the program, you can leave the parameters unchanged. These parameters will be useful to you when you want to change something in the output file.

 

 

See more: Save As

 

Camera layout in 3D

 

You can save images from the 3D World window to many formats. Resolution of obtained images can exceed Windows screen resolution.

 

 

See more: Save and Print

 

Images from cameras

 

You can get ordinary 3D images or images based on real parameters of cameras and scenes in different combinations (real resolution of camera and lens, exposure and target speed, sensitivity and illumination, depth of field, lens distortion, etc.), you can get images with real resolution of tens of megapixels, static and animated, separate and integrated into monitors.

 

For accurate modeling of camera parameters, it is necessary to understand their operation. However, to obtain ordinary 3D images, no special knowledge is required.

 

 

See details: 3D Video, Monitor window, Examples of work with VideoCAD

 

Table of cameras

 

To get information from the project in tabular form, use the Table of cameras button in the left part of the top row of the Toolbar.

 

The interface of the Table of cameras  is similar to the Table of camera models interface. You can also select Views, filter cameras, search for parameters, select columns to display, and so on.

 

Using the Table of cameras, you can get a variety of tabular reports that can be exported to * .txt, *. csv formats (csv separator can be changed), *. htm, *. rtf, *.xls, *. Xlsx, *. xml or simply copy in Excel.

 

select an arbitrary group of cells in the table by the mouse;
right click to open the context menu and select Copy selection;
open Excel and paste the fragment.

 

To export the entire table to a file, click the button on the Table panel in the lower left corner of the window and select a file format to export.

See more: Table of cameras

 

PDF Report

 

To get a report in PDF format with texts, tables and pictures of the project, use the Main Menu: Project> PDF Report.

At the first stage of mastering the program, leave report parameters unchanged, just click on the button in the lower left corner of the PDF report window. The ability to flexibly customize the report comes in handy when you will want to make changes in the report.

 

During the preparation of the report windows will open and close, images will show. Please wait until the end of the process.

 

In the next step of mastering the program, try to select prepared patterns in the Patterns combobox in the lower right corner of the PDF Report window.

 

See examples of VideoCAD9 reports:

 

To see the Real camera resolution, zoom-in images in Acrobat Reader. Especial interesting are Camera 3 and Camera 4.

 

 

See more: PDF Report

 

Other output files

 

 

 

Images from cameras, up to tens of megapixels.

 

 

 

 

 

Images from 3D World, up to tens of megapixels resolution.

 

 

Print from VideoCAD

 

drawing with camera layout with possibility of imposing a stamp, printing on several pages for gluing;

 

 

 

 

 

 

 

 

 

       Additional capabilities

 

VideoCAD offers tools that simplify and speed up work with complex projects, as well as allow you to solve problems that go beyond simple examples.

 

Line types

 

Instead of setting parameters for each construction separately, you can choose pre-configured line types for constructions, cameras, 3D models and cables. Each line type contains information about the style, thickness, color of the line separately in 2D, 3D and in printing, the preset heights for the constructions and 3D models, whether the line type is a cable and whether this line type should be considered an obstacle when calculating shadows.

 

See more: Line types

 

Fonts

 

For text labels, titles and captions there are customizable fonts. The font parameters include: name, style, color, size, mark whether the font is scalable.

 

See more: Fonts

 

Snaps

 

During drawing, the mouse cursor "sticks" to points, lines, and directions. The snap settings can be quickly changed during working in the Snap panel, which can be opened by the Global snap button in the right part of the bottom row of the Toolbar.

 

See more: Snaps

 

Vertical projection of the layout

 

When necessary, you can open the vertical projection of the layout using the Hide vertical projection button in the right part of the top row of the Toolbar. In the vertical projection, you can also place constructions, 3D models and cables.

To move the horizontal projection relative to the vertical projection - move the mouse with the middle button (wheel) pressed and holding the Ctrl key.

 

To study the vertical projection of the active camera's view area, there is the Graphical editing state of the active camera. .

 

See more: Graphics area, Hide vertical projection

 

Customization of the interface

 

You can customize visibility of buttons on the Toolbar, your own keyboard shortcuts for all menu items, response to rotation of the mouse wheel, sensitivity of snaps.

All text resources (headers, messages, headings of tables and lines in reports..) are stored in text files with * .lng extension and can be customized.

 

Layouts

 

There can be up to 10 layouts in a project. Layouts can correspond to a separated parts of an object of video surveillance. In the PDF report, you can print plan drawings separately.

 

See more: Layouts

 

Layers

 

Constructions, cameras and 3D models can be distributed by layers. You can control activity, visibility, color, height and other parameters of each layer. When exporting a drawing, the layers are exported into layers of AutoCAD * .dxf and * .dwg file formats.

 

See more: Layers

 

Camera Groups

 

Cameras can be combined into groups. You can control the activity, visibility, color and other parameters of groups. In the PDF report, you can print group drawings separately.

 

See more: Camera Groups

 

Camera Positions

 

Cameras may contain "snapshots" of their parameters and positions - positions. You can copy positions to cameras and copy cameras to positions. Positions can be displayed in 2D and 3D as well as cameras. Positions allow you to model multisensor cameras, PTZ camera presets and Fisheye cameras. But their use is not limited to this.

 

See more: Camera Positions

 

Numerate cameras tool

 

There is a special tool for renaming cameras on layouts with sequential numbering.

 

See more: Numerate cameras

 

Import of lines in AutoCAD * .dxf * .dwg format to VideoCAD constructions

 

There is a tool that allows you to automatically convert simple 2D backgrounds in AutoCAD format into 3-dimensional VideoCAD constructions.

 

See more: Import DXF/DWG background

 

Control the display order of objects and cameras on the layout and in 3D

 

There are tools that control how intersecting objects will overshadow each other in 2D and 3D.

 

See more: Cameras over constructions, High resolution on top, Bring to front, Send to back.

 

Combining constructions

 

Individual constructions can be combined into more complex structures. You can merge contour of the constructions.

 

See more: Combine in block. Merge contour.

 

Cable length calculation

 

There is a cable length counter, cable report generator and cable laying tool.

 

See more. Signal cable, Length calculation of line segments, Cable report, Cable laying

 

Calculation of electrical parameters of cables

 

There is a calculator for calculating the voltage on the camera, depending on the parameters of the source, camera and cable.

 

See more: Power cable

 

       Modeling special cameras

 

VideoCAD offers tools for modeling special cameras:

 

 

 

 

 

       Calculation of person detection, person identification and license plate reading areas

 

Estimation of possibility of person detection, person identification and reading a license plate only by the pixel density (pixel density) is convenient, but inaccurate.

The license plate or face of a person can simply not get into the view area in height, or get at too big angle and the task of identification or reading license plate will not be solved.

At the same time, to detect a person it is not necessary to get the whole person in the frame, it is enough to see a part of his body. Possible height range of appearance of a License plate does not equal the height range of appearance of a person’s face.

 

Therefore, the real area of person identification will be less than the colored region on the view area projection, the real area of license plate reading will be shifted relative to the colored region, and the real area of person detection will be more than on the projection.

 

To eliminate this error VideoCAD offers more rigorous tools, taking into account the height restriction and limiting angles. You can read about them by the links below.

 

 

 

 

You can use these tools when you need a more accurate result.

 

       Physically accurate modeling of camera functionality

 

VideoCAD offers unique tools for physically accurate modeling internal functionality of video cameras.

 

Effective use of such modeling tools requires sufficient understanding of camera operation. Some of parameters required for accurate modeling are missing in the manufacturers specifications or their values in the specifications are overrated or ambiguous. Therefore, these parameters have to be obtained or verified experimentally.

 

In the current practice of CCTV designing such modeling is not mandatory. However, these tools allow to increase accuracy of the projects, to model cases that can not be modeled in other design programs.

These tools allow qualified designers to effectively apply and demonstrate their skills, convincingly justify their decisions, create projects and business proposals that are superior to competitors' products.

 

Modeling tools are described in detail in the help system:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

See also: General information on VideoCAD 9 Professional, Examples of work with VideoCAD