Patent ID: 11933677
Assignee: HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G  C | IPC C  G

Claim 13:
14. A product control system, comprising
a control equipment, which collects a color tone information of the temperature detecting material according to claim 1 being applied to a product and controls an environment in which the product is arranged based on the color tone information, and
a control terminal, which acquires a product identifying information applied to a product for identifying the product,
wherein
the control equipment includes a memory unit which stores a color density-time information, which indicates the relation between the color density of the temperature detection material applied to the product and a time period that the product is arranged in the environment,
and wherein
the control terminal acquires the color density-time information from the control equipment based on an acquired product identifying information, calculates the time period that the product is arranged in the environment based on the acquired color density of the color tone information and the color density-time information, displays the calculated time period on the display unit, and also transmit the product identifying information and the calculated time period, together with their relation, to the control equipment.