Wireless tag system, wireless tag access control device, wireless tag access control method, wireless tag access control program and wireless tag
First Claim
Patent Images
1. A wireless tag system comprising:
- a plurality of wireless slave tags which have respective unique IDs;
a plurality of wireless master tags arranged for said slave tags and storing the unique IDs of said slave tags; and
a wireless tag access control device which accesses said master tags to acquire the unique IDs of said slave tags from said master tags and subsequently accesses said slave tags by using the acquired unique IDs of the slave tags.
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Abstract
A wireless tag system which does not require any anti-collision process or, if an anti-collision process is required, can reduce the number of tags that need to participate in the anti-collision process to make the anti-collision process proceeds fast. The wireless tag system comprises a plurality of wireless slave tags which have respective unique IDs, a plurality of wireless master tags arranged for the slave tags and storing the unique IDs of the slave tags and a wireless tag access control device which accesses the master tags to acquire the unique IDs of the slave tags from the master tags and subsequently accessing the slave tags by using the acquired unique IDs of the slave tags.
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Citations
20 Claims
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1. A wireless tag system comprising:
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a plurality of wireless slave tags which have respective unique IDs; a plurality of wireless master tags arranged for said slave tags and storing the unique IDs of said slave tags; and a wireless tag access control device which accesses said master tags to acquire the unique IDs of said slave tags from said master tags and subsequently accesses said slave tags by using the acquired unique IDs of the slave tags. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A wireless tag access control device which accesses wireless tags comprising:
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a unique ID acquiring section which accesses at least a master tag provided for a plurality of slave tags and acquiring the unique IDs of the slave tags stored in the master tag; and a slave tag accessing section which accesses the slave tags by using the unique IDs of the slave tags acquired by the unique ID acquiring section. - View Dependent Claims (9, 10, 11)
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12. A wireless tag access control method which accesses a plurality of wireless tags, said method being adapted to provide at least a master tag storing the unique IDs of a plurality of slave tags which have respective unique IDs, said method comprising:
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a slave tag UID acquiring step which accesses the master tag and acquires the unique IDs of the plurality of slave tags stored in the master tag; and a slave tag accessing step which accesses the slave tags by using the acquired unique IDs of the slave tags. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A wireless tag access control program which causes a computer to execute a wireless tag access control method which accesses a plurality of wireless tags, said program being adapted to provide at least a master tag storing the unique IDs of a plurality of slave tags which have respective unique IDs, said program comprising:
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a slave tag UID acquiring step which accesses the master tag and acquiring the unique IDs of the plurality of slave tags stored in the master tag; and a slave tag accessing step which accesses the slave tags by using the acquired unique IDs of the slave tags. - View Dependent Claims (19)
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20. A wireless tag comprising a wireless antenna and a memory section and adapted to be accessed by a read/write device by means of a wireless signal,
said wireless tag storing unique IDs of wireless tags other than itself in the memory section so that they may be accessed by said read/write device by means of the unique IDs.
Specification