To install the jammers in the prison, some data should be offered as.

• Type A: Regular type in rectangle or square .
  
• Type B: Irregular type, neither rectangle nor square type.

Prior to the designing of the installation solution,the size information provided including：

1. Per Type A and B , the map of the prison as well as the peremeter length surrounding the prison.
2. The length , width and height for each building as well as its location in the prison.
3. The signal strength of different locations in the prison. ( Including the signal strength of different cellular phone system signals)
4. The nearest distance between the residential areas and all the directions surrounding the prison.
5. The height of observation /Patrol towers and peremeter walls in the prison.