| US 7,584,121 B1 | ||
| Object subject to processing, which judges need for predetermined processing thereof based on usage and specification thereof | ||
| Shigetoshi Sameshima, Machida (Japan); and Katsumi Kawano, Kawasaki (Japan) | ||
| Assigned to Hitachi, Ltd., Tokyo (Japan) | ||
| Filed on Aug. 23, 2000, as Appl. No. 9/644,059. | ||
| Claims priority of application No. 11-322116 (JP), filed on Nov. 12, 1999. | ||
| Int. Cl. G06Q 40/00 (2006.01) | ||
| U.S. Cl. 705—26 [705/35] | 13 Claims |
| 1. An object subject system including a plurality of objects subject to be processed, wherein:
each of the objects subject to be processed is provided with an object body to be processed and a device including a processing
unit, a storage unit, and a communication unit;
said storage unit for each of said objects subject to be processed is arranged to store an identifier of said object with
which the storage unit is provided, a product specification including a service condition of said object, and a usage situation
of said object;
said processing unit for each of said objects subject to be processed renews said usage situation of said object in said storage
unit provided therewith on the basis of the identifier of said object and a usage situation of said object received from other
objects subject to be processed, determines whether or not said renewed usage situation is within a predetermined service
condition of said product specification stored in said storage unit, and outputs a request for predetermined processing for
another object subject to be processed when said processing unit judges that the predetermined processing is required for
said object, wherein:
said other objects subject to be processed include an accelerometer and a decoder for recording a number of rotations of said
object;
said product specification stored in said storage unit includes a relation between usage conditions of said object including
either acceleration or deceleration and an endurance distance of said object;
said usage situation stored in said storage unit includes a traveling distance of said object converted on the basis of the
usage conditions of said object;
said usage situation received from said other objects subject to be processed includes a traveling distance of said object
received from said decoder and usage conditions of said object received from said accelerometer; and
said processing unit renews a using distance of said object stored in said storage unit on the basis of a traveling distance
of said object received from said decoder and a usage condition of said object received from said accelerometer, determines
whether or not the renewed using distance of said object is within a range of an endurance distance converted on the basis
of a relation between the usage condition of said object stored in said storage unit and the endurance distance of said object,
and outputs a warning for conversion of said object to said other objects subject to be processed when the using distance
of said object is not within the range of said endurance distance.
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