Door control system

A door control system comprising:

• a battery;
• a door comprising one or more panels;
• a motor coupled to the door;
• a controller for controlling the motor, said controller operable to receive a command for actuating said motor to move said door in one of a first direction and a second direction opposite the first direction;
• a first power supply connected to said controller via one or more relays, said relays being switchable between one of a first position and a second position, said first position connecting said power supply to said motor, and said second position connected said battery to said motor when said power supply is disconnected;
• a sensor for detecting objects when the door is moving;
• wherein the controller is configured to verify that the sensor for detecting objects is functional prior to actuating said motor, by;
• verifying an output of said sensor for detecting objects within a predefined period of time after the sensor is powered, said predetermined period of time being less than a time required by said sensor to produce an output signal, and verifying an output of said sensor for detecting objects when said sensor is not powered.