Overhead door operator system

A method at a control device for controlling an overhead door operator system, the overhead door operator system being configured for opening and closing an opening, the overhead door operator system comprising:

• a door frame comprising a first frame section at a first side of the opening and a second frame section at a second side of the opening opposite the first side;
• a door arranged to be moved between an open (O) and closed (C) position, the door being movably connected to the door frame;
• a drive unit mounted on the door, the drive unit comprising at least one motor arranged to move the door from the closed position (C) to the open position;
• a first detection unit arranged at the door in connection to the first side to detect door movement in connection with the first side;
• a second detection unit arranged at the door in connection to the second side so as to detect door movement in connection to the second side;
• a first elongated transmission member extending along the first side of the opening and the first frame section;
• and
• a second elongated transmission member extending along the second side of the opening and the second frame section,
• wherein the drive unit further comprises a first driven transmission member in driving connection with the motor, the first driven transmission member being movably connected to the first elongated transmission member and arranged to interplay with said first elongated transmission member for driving the first driven transmission member along said first elongated transmission member by means of the first elongated transmission member and wherein the drive unit further comprises a second driven transmission member in driving connection with the motor and arranged to interplay with the second elongated transmission member, so as to move the door between the closed (C) and open (O) position, the method comprising the steps of:
• receiving one or more first and second signals from the first and second detection units associated with opening and closing movement of the door during normal operation;
• storing information from the first and second detection units associated with opening and closing movement of the door during normal operation;
• receiving one or more first signals from the first detection unit associated with movement of the door in connection to the first side and one or more second signals from the second detection unit associated with movement of the door in connection to the second side during a subsequent operation;
• comparing the first and second signals associated with door movement during the subsequent operation with the thus stored information from the first and second detection units associated with opening and closing movement of the door during normal operation;
• and
• determining that the thus detected door movement during the subsequent operation is related to an unexpected door movement if the difference between detected door movement compared with the thus stored information of door movement during normal operation exceeds a certain threshold.

An overhead door operator system for opening and closing an opening, the overhead door operator system comprising a control device for controlling the overhead door operator system, the overhead door operator system comprising:

• a door frame comprising a first frame section at a first side of the opening and a second frame section at a second side of the opening opposite the first side;
• a door arranged to be moved between an open (O) and closed (C) position, the door-being movably connected to the door frame;
• a drive unit mounted on the door, the drive unit comprising at least one motor arranged to move the door from the closed position (C) to the open position;
• a first detection unit arranged at the door in connection to the first side to detect door movement in connection with the first side;
• a second detection unit arranged at the door in connection to the second side so as to detect door movement in connection to the second side;
• and
• a first elongated transmission member extending along the first side of the opening-and the first frame section and a second elongated transmission member extending along the second side of the opening and the second frame section, whereby the drive unit further comprises a first driven transmission member in driving connection with the motor, the first driven transmission member-being movably connected to the first elongated transmission member and arranged to interplay with said first elongated transmission member for driving the first driven transmission member along said first elongated transmission member by means of the first elongated transmission member and a second driven transmission member arranged to interplay with the second elongated transmission member by means of the second elongated transmission member so as to move the door between the closed (C) and open (O) position,
• the control device being configured to:
• receive one or more first signals from the first detection unit associated with movement of the door in connection to the first side and one or more second signals from the second detection unit associated with movement of the door in connection to the second side;
• compare the first signals associated with door movement in connection to the first side with the signals associated with door movement in connection the second side;
• and
• determine that the thus detected door movement is related to an unexpected door movement if the difference of door movement in connection to the first side compared with door movement in connection the second side exceeds a certain threshold;
• if it is determined that detected door movement is related to an unexpected door movement, take action so as to prevent more extensive damages.

An overhead door operator system for opening and closing an opening, the overhead door operator system comprising a control device for controlling the overhead door operator system, the overhead door operator system comprising:

• a door frame comprising a first frame section at a first side of the opening and a second frame section at a second side of the opening opposite the first side;
• a door arranged to be moved between an open (O) and closed (C) position, the door-being movably connected to the door frame;
• a drive unit mounted on the door, the drive unit comprising at least one motor arranged to move the door from the closed position (C) to the open position;
• a first detection unit arranged at the door in connection to the first side to detect door movement in connection with the first side;
• a second detection unit arranged at the door in connection to the second side so as to detect door movement in connection to the second side;
• and
• a first elongated transmission member extending along the first side of the opening and the first frame section and a second elongated transmission member extending along the second side of the opening and the second frame section, whereby the drive unit further comprises a first driven transmission member in driving connection with the motor, the first driven transmission member-being movably connected to the first elongated transmission member and arranged to interplay with said first elongated transmission member for driving the first driven transmission member along said first elongated transmission member by means of the first elongated transmission member and a second driven transmission member arranged to interplay with the second elongated transmission member by means of the second elongated transmission member so as to move the door between the closed (C) and open (O) position,
• the control device being configured to:
• receive one or more signals from the first and second detection units associated with opening and closing movement of the door during normal operation;
• store information from the first and second detection units associated with opening and closing movement of the door during normal operation;
• receive one or more first signals from the first detection unit associated with movement of the door in connection to the first side and one or more second signals from the second detection unit associated with movement of the door in connection to the second side during a subsequent operation;
• compare the signals associated with door movement during the subsequent operation with the thus stored information from the detection associated with opening and closing movement of the door during normal operation;
• and
• determine that the thus detected door movement is related to an unexpected door movement if the difference between detected door movement compared with the thus stored information of door movement during normal operation exceeds a certain threshold.