Patent ID: 8121844

Claim:
A dimensional measurement system comprising: a speech I/O device fit in an ear canal of a worker, generating a voice signal from vibration in the air emitted from an eardrum of the worker and propagated inside the ear canal, and outputting the voice signal; and an information processing device including a memory unit, the memory unit storing term definition information associating predetermined term with type and unit of dimension measurement value, the information processing device that is configured to: recognize a measurement value of a dimension of an object from the voice signal that the speech I/O device output; judge if the measurement value satisfies a reference value of the object; recognize a word included in the voice signal, when a predetermined term included in the term definition information that is read from the memory unit corresponds to the recognized word, specify a measurement value that is recognized after the recognized word by a type and unit of dimension measurement value associated with the predetermined term corresponding to the recognized word, recognize an order of recognized measurement values when the predetermined term in the read term definition information is not included in the voice signal; and specify a measurement value by the type and unit of a dimension measurement value corresponding to the order of the measurement value, using information associated an order of measurement values, and types and units of dimensions.