Wireless tag communication control device
First Claim
1. A wireless tag communication control device that communicates with a wireless tag attached to a moving object, comprising:
- a gate through which the object passes;
a sensor for sensing the existence position of the object, the sensor being arranged at the gate;
an antenna for transmitting an electric wave to the wireless tag, the antenna being arranged at the gate; and
an electric wave output adjustment unit that is connected to the antenna;
wherein an electric wave transmission output from the antenna is adjusted according to the position of the object in the gate.
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Accused Products
Abstract
The present invention provides a wireless tag communication control device, which includes a gate through which an object having attached thereto a wireless tag passes, a sensor that is arranged at the gate and senses the existence position of the object, an antenna that is arranged at the gate and transmits an electric wave to the wireless tag, and an electric wave output adjustment unit that is connected to the antenna, wherein an electric wave transmission output from the antenna is adjusted according to the position of the object in the gate.
11 Citations
6 Claims
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1. A wireless tag communication control device that communicates with a wireless tag attached to a moving object, comprising:
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a gate through which the object passes;
a sensor for sensing the existence position of the object, the sensor being arranged at the gate;
an antenna for transmitting an electric wave to the wireless tag, the antenna being arranged at the gate; and
an electric wave output adjustment unit that is connected to the antenna;
wherein an electric wave transmission output from the antenna is adjusted according to the position of the object in the gate. - View Dependent Claims (2, 3)
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4. A wireless tag communication control device that communicates with a wireless tag attached to a moving object, comprising:
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a first sensor and a second sensor for sensing the existence position of the moving object, the first and second sensors facing each other;
a first antenna and a second antenna for transmitting an electric wave to the wireless tag, the first and second antennas facing each other;
a first electric wave output adjustment unit connected to the first antenna; and
a second electric wave output adjustment unit connected to the second antenna;
wherein electric wave transmission outputs from the first and second antennas are adjusted according to the existence position of the object.
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5. A wireless tag communication control device that communicates with a wireless tag attached to a moving object, comprising:
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a first partition wall and a second partition wall which face each other;
a first sensor and a second sensor for sensing the existence position of the object, the first and second sensors being arranged at one ends of the first and second partition walls respectively;
a third sensor and a fourth sensor for sensing the existence position of the object, the third and fourth sensors being arranged at the other ends of the first and second partition walls respectively;
a first antenna and a third antenna which are arranged at the first partition wall;
a second antenna and a fourth antenna which are arranged at the second partition wall, the second and fourth antennas facing the first and third antennas respectively; and
a first to a fourth electric wave output adjustment units which are connected to the first to fourth antennas;
wherein electric wave transmission outputs from the first to fourth antennas are adjusted according to the existence position of the object. - View Dependent Claims (6)
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Specification