System and method of controlling and enforcing screen usage

A system for controlling usage over a screen comprising:

• a transmitter configured to transmit a multiplicity of commands related to limiting usage of a screen in accordance with at least one rule, the multiplicity of commands sent at intervals during an applicability time period of the at least one rule,
• the transmitter comprising a tamper proof module for identifying tampering or tampering attempts to the transmitter, the tamper proof module comprising a battery;
• and
• a receiver operatively connected to the screen, the receiver configured to receive the commands from the transmitter and apply the commands to the screen, thereby limiting usage of the screen for the applicability time period of the at least one rule,
• wherein the wherein the transmitter and the receiver communicate in an authenticated manner