Electronic-component mounting system

An electronic-component mounting system comprising:

• a plurality of supporting devices each of which supports and positions at least one object, said supporting devices being movable along a reference line;
• a plurality of mounting units arranged along said reference line, each of said mounting units including (a) a mounting device which mounts at least one electronic component on said at least one object supported by each of said supporting devices, and (b) a moving device which moves said mounting device in a three-dimensional space, each of said mounting units having a mounting area in which said mounting device mounts said at least one component on the at least one object;
• a feeding device which feeds said plurality of supporting devices along said reference line such that said at least one object supported by each of said supporting devices is moved from the mounting area of a most upstream one of said mounting units to the mounting area of a most downstream one of said mounting units in a direction of feeding of the supporting devices, while said feeding device positions each of said supporting devices when said mounting device of each of said supporting devices mounts said at least one component on said at least one object supported by each of said supporting devices;
• a positioning error detector which detects an error of positioning of said at least one object with respect to each of said supporting devices located in a waiting area where each of said supporting devices waits for being fed by said feeding device;
• and
• a control device which controls each of said mounting units so that said mounting device of each of said mounting units mounts said at least one component, at a position corrected based on the detected positioning error, on said at least one object supported by each of said supporting devices fed to the mounting area of each of said mounting units.