CLOSED CONTAINER AND CONTROL SYSTEM FOR CLOSED CONTAINER

• US 20090211940A1
• Filed: 02/20/2009
• Published: 08/27/2009
• Est. Priority Date: 02/21/2008
• Status: Active Grant

• Current Assignee: TDK Corporation
• Original Assignee: TDK Corporation
• Inventors: Emoto, Jun, Abe, Tomoshi
• Granted Patent: US 8,234,002 B2
• Time in Patent Office: Days
• US Class Current: 206/710
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Abstract

A closed container in which a reticle etc. is stored and kept is provided with a pressure sensor, transmission means for transmitting data on the pressure, a controller that controls the operation of them, and a battery serving as a power source of the above elements. The controller has a sleep mode in which it causes the transmission means to transmit the data on the pressure at regular intervals and an active mode in which it causes the transmission means to transmit the data on the pressure when necessary in response to an externally supplied command. By the above described configuration, the pressure in the interior of the container can be checked appropriately.

Claims

1. A closed container for storing an object to be stored that is managed in a clean environment, comprising:

a main body having an interior space in which said content object can be stored and an opening that allows communication between said interior space and an external space;

a lid that can close said opening;

an environmental parameter measuring apparatus that can measure at least one parameter indicative of a condition of the environment in said interior space;

transmission means for transmitting data representing a measurement result obtained by said environmental parameter measuring apparatus;

a controller that controls operation of said environmental parameter measuring apparatus and said transmission means; and

a battery serving as a power source for said environmental parameter measuring apparatus, said transmission means, and said controller, wherein

said controller has a sleep mode in which it causes said transmission means to operate at regular intervals to transmit said data and an active mode in which it causes the transmission means to transmit said data in response to an externally supplied command.

2. A closed container according to claim 1, wherein said transmission means performs data transmission using a ray.

3. A management system for closed container that manages the environment in said interior space of a closed container according to claim 1 or 2, comprising:

a closed container according to claims 1 or 2 that further includes receiver means that receives a command signal to transfer said externally supplied command to said controller; and

a receiver unit that includes receiver unit receiving means for receiving said data transmitted from said transmission means, receiver unit transmitting means for transmitting said command signal to said receiver means, and a cable communication module that transmits said received data to outside.