Provided are a method, computer program product, and system for repairing a defective component of a 3D printer. The method comprises identifying a defective component in a 3D printer. The method further comprises determining one or more repair actions for the defective component. The method further comprises determining an order of priority for a set of print jobs for the 3D printer and the one or more repair actions. The method further comprises performing the set of print jobs and the one or more repair actions in accordance with the determined order of priority.

A field device includes a controller and a process communication module. The controller is configured to perform at least one operation related to process control and is also configured to perform at least one self-recovery operation relative to the field device. The process communication module is coupled to the controller and is configured to couple to a process communication segment and communicate in accordance with a process communication protocol. The controller is configured to detect an erroneous condition and selectively apply the at least one self-recovery operation in response to the detected erroneous condition.

A method, an apparatus, and a system are provided for automatically repairing a smart device in the field of computer technology. In the method, the apparatus receives a fault detection request transmitted by the smart device, the fault detection request carrying at least one current value of at least one preset parameter item of the smart device. The apparatus determines whether the at least one current value is within a preset range according to a first value characteristic. When it is determined that the at least one current value is within the preset range, the apparatus obtains first fault repair information corresponding to the first value characteristic from a correspondence table. The apparatus transmits the first fault repair information to the smart device, so that the smart device is automatically repaired according to the first fault repair information.

A field device includes a controller and a process communication module. The controller is configured to perform at least one operation related to process control and is also configured to perform at least one self-recovery operation relative to the field device. The process communication module is coupled to the controller and is configured to couple to a process communication segment and communicate in accordance with a process communication protocol. The controller is configured to detect an erroneous condition and selectively apply the at least one self-recovery operation in response to the detected erroneous condition.

A method, an apparatus, and a system are provided for automatically repairing a smart device in the field of computer technology. In the method, the apparatus receives a fault detection request transmitted by the smart device, the fault detection request carrying at least one current value of at least one preset parameter item of the smart device. The apparatus determines whether the at least one current value is within a preset range according to a first value characteristic. When it is determined that the at least one current value is within the preset range, the apparatus obtains first fault repair information corresponding to the first value characteristic from a correspondence table. The apparatus transmits the first fault repair information to the smart device, so that the smart device is automatically repaired according to the first fault repair information.