Device including data transmission mechanisms which transmit driving state of drive device

A device, comprising:

• at least three mutually independent data transmission mechanisms which transmit a driving state for a same drive device which drives a component of the device, and
• a controller which controls driving of the drive device, wherein
• each of the data transmission mechanisms includes:
• a sensor which acquires a variable related to the driving state of the drive device,
• a transmission unit which assigns a code for detecting an error to data acquired from output of the sensor and transmits the data, and
• a reception unit which receives the data to which the code for detecting the error has been assigned,
• the controller includes:
• a data judgment unit which determines whether a relationship between the data and the code for detecting the error in the data transmitted from the data transmission mechanism matches a predetermined rule, and
• an operation judgment unit which executes operation judgment control for judging whether operation of the drive device is continued, and
• when there is data for which the relationship between the data and the code for detecting the error does not match the predetermined rule, the operation judgment control includes:
• control for determining that the operation is continued in a case in which there are at least two pieces of data for which the relationship between the data and the code for detecting the error matches the predetermined rule and all of the at least two pieces of data are within a predetermined judgment range, and
• control for determining that the drive device is stopped in a case in which at least one of the pieces of data for which the relationship between the data and the code for detecting the error matches the predetermined rule deviates from the predetermined judgment range.