Quality control system of concrete and cement products using wireless IC tag
AssigneeMitomo Corporation
InventorsKikuo Kaga, Shigeo Ashizawa, Yasuo Kano
Life of this patent
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Abstract
A quality control system of concrete and cement products is provided in which the manufacturing information on cement products of mortar or concrete can be checked at any time, the reliability is such that there is no possibility of the recorded information being lost or falsified, there is no possibility of damage in concrete, and the directivity of the sensitivity of an antenna can be broadened.
Claims34
A concrete quality control system using a wireless IC tag kneaded with cement, aggregate, and water, the system comprising:
- a cement product including cement, aggregate, and water kneaded together;
- a wireless IC tag contained in the cement product, the wireless IC tag having an antenna section, a nonvolatile memory device, and a power section, the wireless IC tag being configured such that information is writable thereon and readable therefrom by wireless communication through the antenna section;
- a measuring device measuring manufacturing information of the cement product;
- an IC tag writer coupled to the measuring device, the IC tag writer writing the manufacturing information to the wireless IC tag;
- and
- an IC tag reader reading the manufacturing information from the wireless IC tag,
- wherein the power section generates electricity without a battery by resonating with received radio waves,
- wherein the cement product with the wireless IC tag contained therein is usable to construct a structure, and the manufacturing information in the wireless IC tag is readable from the wireless IC tag inside the structure by the IC tag reader after the cement product is cast at a construction site and finished into the structure,
- wherein the wireless IC tag has a solid form shaped as one of a sphere, an ellipsoid, and a polyhedron, and
- wherein a size and specific gravity of the wireless IC tag are approximately the same as a size and specific gravity of the aggregate kneaded into the cement product such that the wireless IC tag can be dispersed into the cement product evenly during kneading of the cement product.
A concrete quality control system using a wireless IC tag kneaded with cement, aggregate, and water, the system comprising:
- a cement product including cement, aggregate, and water kneaded together;
- and
- a wireless IC tag contained in the cement product, the wireless IC tag having an antenna section, a nonvolatile memory device, and a power section, the wireless IC tag being configured such that information is writable thereon and readable therefrom by wireless communication through the antenna section,
- wherein the power section generates electricity without a battery by resonating with received radio waves,
- wherein the wireless IC tag is operable to record manufacturing information of the cement product from an IC tag writer which writes the manufacturing information to the wireless IC tag such that the manufacturing information can be read by an IC tag reader, and
- wherein the cement product with the wireless IC tag contained therein can be used to construct a structure,
- wherein the manufacturing information in the wireless IC tag can be read from the wireless IC tag inside the structure by the IC tag reader after the cement product is cast at a construction site and finished into the structure,
- wherein the wireless IC tag has a solid form shaped as one of a sphere, an ellipsoid, and a polyhedron, and
- wherein a size and specific gravity of the wireless IC tag are approximately the same as a size and specific gravity of the aggregate kneaded into the cement product such that the wireless IC tag can be dispersed into the cement product evenly during kneading of the cement product.
Dependencies are inferred from the claim text.