How to Design an Outdoor Wireless IP Camera Installation
3 Key Steps to a successful Wireless IP camera installations:
The first thing to always consider is this: Do I have line of sight or are their obstructions in my path(s). The reality in wireless video transmission is by gaining line of sight you significantly reduce your costs and complexity. Non-line of sight installations can certainly be achieved with wireless technologies such as Cellular, High Speed Mesh, or 900 Mhz. However, all of these options are not nearly as affordable, reliable, or optimal as the options available when you can achieve line of sight between the remote outdoor camera and your head end DVR/NVR. In most cases, security and surveillance system integrator professionals will spend the effort up front to design a system layout that allows for line of sight links rather than face the additional costs and complexities of implementing a non-line of sight design.
Once you've established line of sight paths, the next consideration is your bandwidth calculations. How much true and reliable bandwidth will I need for all the cameras in my layout. This is most commonly done by taking three factors into account per camera in the system:
1) Camera resolution.
2) Compression type (H.264, MPEG4, MJPEG, etc)
3) Desired frames per second (FPS).
A common example of this would be a 3 MP camera with H.264, needing 15 FPS would require 5Mbps of bandwidth. When you multiply this times the number of cameras in your network you can determine the amount of actual and reliable wireless bandwidth you will need as a constant for the system to perform as designed. Finally, now that you have your line of sight paths determined and your bandwidth calculations completed, put your project coordinates into Google Earth. Once you bring up the location take some screen shots. This will give you the opportunity to create graphical layouts of your complete system design which can be used to converse with the technology suppliers you are partnering with as well as your customer.