Training data generator and method for generation of training datasets

A training data generator comprising:

• an interface, which is designed to read in symbols extracted from digital system plans for technical systems provided and a positioning rule provided for the positioning of a symbol in a system plan, wherein the system plans each depict a structure and/or a functionality of a technical system by means of symbols and are identical, wherein symbols depict the technical system or a technical function, and wherein the at least one positioning rule is directed to a relative positioning of the symbol on a system plan, a relative positioning of the symbol in relation to an annotation, a predetermined coupling to a further symbol, and/or a symbol-specific dependence on at least one further symbol,
• a memory module, which is designed in such a way as to store the extracted symbols,
• a selection module, which is designed in such a way as to select at random by means of a random generator a symbol sub-quantity of the stored symbols,
• a generator, which is designed in such a way as to generate at least one synthetic system plan as a function of the selected symbol sub-quantity and as a function of at least one positioning rule,
• and
• an output module, which is designed in such a way as to output the at least one synthetic system plan as training data for training a trainable image detection module.