Wireless tag communication device and wireless tag communication program
First Claim
1. A wireless tag communication device which communicates with a wireless tag, comprising:
- a communication unit that designates a target wireless tag to read tag information stored in the wireless tag;
a read-state determination unit that determines a read state of the tag information read by the communication unit;
an output adjustment unit that varies a radio wave output to be transmitted to the wireless tag in response to the result of the determination by the read-state determination unit;
a signal strength detection unit that detects the received signal strength indicator of a reply signal received from the wireless tag via the communication unit; and
a control unit that switches the operation mode of the communication unit between a long-distance mode to communicate with the wireless tag while the output adjustment unit varies the radio wave output and a near-field mode to communicate with the wireless tag while the signal strength detection unit that detects the signal strength.
1 Assignment
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Accused Products
Abstract
According to one embodiment, a wireless tag communication device which communicates with a wireless tag includes a communication unit that designates a target wireless tag to read tag information stored in the wireless tag; a read-state determination unit that determines a read state of the tag information read by the communication unit; an output adjustment unit that varies a radio wave output to be transmitted to the wireless tag in response to the result of the determination by the read-state determination unit; a signal strength detection unit that detects the signal strength of a reply signal received from the wireless tag via the communication unit; and a control unit that switches the operation mode of the communication unit between a long-distance mode to communicate with the wireless tag while the output adjustment unit varies the radio wave output and a near-field mode to communicate with the wireless tag while the signal strength detection unit detects the signal strength.
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Citations
6 Claims
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1. A wireless tag communication device which communicates with a wireless tag, comprising:
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a communication unit that designates a target wireless tag to read tag information stored in the wireless tag; a read-state determination unit that determines a read state of the tag information read by the communication unit; an output adjustment unit that varies a radio wave output to be transmitted to the wireless tag in response to the result of the determination by the read-state determination unit; a signal strength detection unit that detects the received signal strength indicator of a reply signal received from the wireless tag via the communication unit; and a control unit that switches the operation mode of the communication unit between a long-distance mode to communicate with the wireless tag while the output adjustment unit varies the radio wave output and a near-field mode to communicate with the wireless tag while the signal strength detection unit that detects the signal strength. - View Dependent Claims (2, 3, 4, 5)
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6. A non-transitory storage medium encoded with a computer readable program to communicate with a wireless tag, and read and process tag information stored in the wireless tag, the program causing a computer to execute:
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a communication function adapted to designate a target wireless tag to read tag information stored in the wireless tag; a read-state determination function adapted to determine a read state of the tag information; an output adjustment function adapted to vary a radio wave output to be transmitted to the wireless tag in response to the result of the determination of the read state; a signal strength detection function adapted to detect the signal strength of a reply signal received from the wireless tag; and a control function adapted to switch the read operation mode in the communication function between a long-distance mode to communicate with the wireless tag while the radio wave output is varied and a near-field mode to communicate with the wireless tag while the signal strength of the reply signal is detected.
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Specification