JPH05250578A - Gate for entry and exiting control - Google Patents

Abstract

PURPOSE:To secure smooth passage and secure sensing by forming an antenna by connecting antenna wires which differ in winding direction and making a passing body to pass in respective looped antenna wires. CONSTITUTION:This gate is equipped with an antenna wire 1 which is wound clockwise and an antenna wire 10 which is wound anticlockwise as the antenna wires provided at the peripheral part of the gate for entry and exiting control. The inputs and outputs of the antenna wires 1 and 10 are connected to the transmitter receiver of an entrance/exiting control system, and ID data, etc., which are sent by a communication equipment 2 and arrive through the antenna wires 1 and 10 are processed as ID information in an input control system. The communication equipment 2 is not limited to an ID card and the passing person 3 may be a moving body such as an animal, a machine, and a robot; and a door 4 is installed when necessary. The communication equipment 2 is provided preferably on the head, e.g. a helmet for better reception characteristics when the passing body is the man 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an entrance / exit management gate used for entrance / exit management of a specific area.

[0002]

2. Description of the Related Art Conventionally, in an entry / exit management system which uses a wireless communication type non-contact type ID card, when a bar antenna is used and the ID card and an external antenna are separated, a power line, a motor, etc. Due to factors such as electromagnetic wave noise generated by the device and the direction of the contactless ID card
There has been a problem that the S / N ratio deteriorates and the ID data cannot be detected and identified.

[0003]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned drawbacks of the prior art, and to newly provide an entrance / exit management gate which has not been known. .

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and "a person, animal or object that is a passing body having a communication device for transmitting and receiving data for entry / exit management. In the entrance / exit management gate through which the passage passes, a loop-shaped antenna wire wound clockwise and a loop-shaped antenna wire wound counterclockwise are provided around the periphery of the entrance / exit management gate. Connecting the strips to form an antenna, and a passage body passing through these loop-shaped antenna wires, an entrance / exit management gate "," communication for sending / receiving data for entry / exit management " In an entrance / exit control gate through which a person, animal, or object that is a passing object with a machine passes, a loop-shaped antenna wire and a loop-shaped antenna wire that are wound clockwise around the periphery of the entrance / exit control gate at a specified interval. Clockwise The loop-shaped antenna wire and the loop-shaped antenna wire are arranged so that the loop surfaces are almost opposite to each other, and both antenna wires are connected to form an antenna, so that the passing body passes between both antenna wires. In the entry / exit control gate, the entry / exit control gate through which a person, an animal, or an object that is a passing object having a communication device for transmitting / receiving the data for entry / exit control passes A loop-shaped antenna wire wound in a clockwise direction and a loop-shaped antenna wire wound in a counterclockwise direction are arranged at a predetermined interval in the vicinity of the periphery of the so that the loop surfaces face each other. Then, an antenna is formed by connecting both antenna filaments, and the passing body passes near the both antenna filaments.

[0005]

Embodiments will be described in detail below with reference to the drawings. [Embodiment 1] FIG. 1 is a perspective view of an entrance / exit management gate according to an embodiment. In FIG. 1, reference numerals 1 and 10 denote antenna strips provided around the entrance / exit control gate, 1 denotes a clockwise antenna strip, 10 denotes an anticlockwise antenna strip, and 2 denotes a person's line. A communication device composed of a non-contact type ID card provided on the head, 3 is a person, 4 is a door, L is an antenna wire 1
And the distance between the opposite ends of the antenna wire 10.

The input and output of the antenna wires 1 and 10 are connected to the transmitter / receiver of the entrance / exit management system, and ID data and the like transmitted from the communication device 2 and sent through the antenna wires 1 and 10 are It is processed as ID information inside the input management system.

The communication device 2 is not limited to the ID card. Further, the person 3 is not limited to this, and may be a moving object such as an animal, a machine, or a robot, and the door 4 is provided as needed. When the passing body is the person 3, the communication device 2 is preferably provided on the head, for example, a helmet in terms of reception characteristics.

The frequency used in the embodiment is 400K.
Hz, but not limited to this, several MHz to several hundred MH
It may be z, microwave, or some other frequency.

FIG. 2 is a basic configuration diagram of the antenna provided in the peripheral portion of the gate used in the first embodiment. In FIG. 2, it is appropriate to connect the ends of the antenna filaments 1 and 10 that face each other to each other.
Connecting the other end of 10 with the transceiver is the reception characteristic,
It is desirable considering productivity. It should be noted that the winding method is not limited to that shown in FIG.
The part may be grounded if necessary.

Reference numerals 15a and 15b denote antenna filaments 10 and 1, respectively.
Connection terminal, which can be used by connecting or disconnecting both, and is appropriately selected according to the operating frequency, environment, etc. If necessary, both 15a and 15b can be connected to a transmitter or a receiver and used as a dipole antenna.

Number of turns of antenna wire 1 and antenna wire 10
It is desirable that the number of turns and the diameter of the winding are substantially equal. This is because the current induced in the antenna wire 1 by the external noise electromagnetic wave and the current induced in the antenna wire 10 by the external noise electromagnetic wave cancel each other.

Considering the S / N ratio, the distance L is 0 to 3 m (L / area = 0 to 0 when the gate area is 3 m ² ).
The range of 1 / m) is an appropriate range, and 3 cm to 1.5 m
(L / area = 0.01 to 0.5 / m) is more desirable,
6 cm to 0.9 m (L / area = 0.02 to 0.3 / m)
Is particularly desirable. Even when the area of the gate is other than 3 m ² , the distance L is determined by this ratio.

[Embodiment 2] FIG. 3 shows another embodiment. In FIG. 3, reference numeral 30 designates a counterclockwise winding antenna wire, 3
1 is a clockwise antenna wire, 2 is a communication device provided on a person's head, for example, a helmet, D is an antenna wire 3
1 is the distance between the opposite ends of the antenna wire 30. 1
Reference numerals 5a and 15b denote connection terminals of the antenna wires 30 and 31, and the method of grounding both antenna wires and the connection method with the transceiver are the same as in the first embodiment.

A person having a communication device or the like passes through the distance D. In the example, the area of the loop surface was 0.4 m ² and D = 1 m. In this case, communication with the communication device could be performed well. As shown in FIG. 3, both antenna lines 30 and 31 are provided on both sides of the entrance / exit management gate with their loop surfaces facing each other, but may be provided vertically or diagonally.

Here, the loop surface means a surface surrounded by the antenna filaments 30 and 31, and the antenna filament 3
When the coil constituted by 0 and 31 is a circle, it means the diametrical surface of this coil. The shape of the coil may be circular, elliptical, or polygonal loop.

If the passing body is a person, the portion of the passing body such as a person, where the communication device is provided, is preferably provided on the head, such as a helmet, in view of the reception characteristics. Further, in this case, it is desirable from the standpoint of reception characteristics that both antenna wires 30 and 31 are provided on both sides of the entrance / exit management gate as shown in FIG.

In FIG. 3, both antenna wires 3
Although the passing body such as the person 3 is made to pass between 0 and 31, it is not limited to these, and for example, both antenna wire 3
The distance between 0 and 31 is very close (distance D≈0), both antenna wires 30 and 31 are arranged near the periphery of the entrance / exit control gate, and the passing body passes near both antenna wires 30 and 31. You may do so.

When a person 3 or the like passes between the antenna filaments, the area of each loop surface of both antenna filaments is A (m ² ), and the distance between the loop surfaces is D (m). Then, the value of A / D (unit: m) is appropriately in the range of 0.01 to 2 in terms of communication characteristics, more preferably in the range of 0.1 to 1, and 0.4 to 0. A range of 0.8 is especially desirable.

[0019]

According to the present invention, the voltage due to the external noise electromagnetic wave induced in the clockwise antenna wire and the voltage due to the external noise electromagnetic wave induced in the counterclockwise antenna wire act in the directions of canceling each other. However, the noise level of the received radio wave becomes low and the signal from the communication device is not buried in the noise, so even in an environment with many external noise radio waves,
The ID signal can be easily detected and identified, and smooth passage and reliable sensing can be ensured.

Therefore, even in an environment such as a construction site or in a factory where there are many external noise radio waves, it is possible to identify an individual by a communication device such as a non-contact type ID card having a simple device configuration. Furthermore, since the detection and identification capabilities are high, there is no need for a structure for limiting the passing speed, the position, the direction, etc., so that an effect that smooth passage is possible is recognized.

[Brief description of drawings]

FIG. 1 is a perspective view of an entrance / exit management gate according to a first embodiment.

FIG. 2 is a basic configuration diagram of the antenna according to the first embodiment.

FIG. 3 is a basic configuration diagram of an antenna according to a second embodiment.

[Explanation of symbols]

 1, 10, 30, 31: Antenna line 2: Communication device 3: Person

Claims (3)

[Claims] 1. An entrance / exit management gate through which a person, an animal, or an object, which is a passing object having a communication device for transmitting / receiving data for entrance / exit management, passes around the circumference of the entrance / exit management gate in a clockwise direction. A loop-shaped antenna wire and a loop-shaped antenna wire wound counterclockwise are provided, and both antenna wires are connected to form an antenna. An entrance / exit management gate characterized by passing through. 2. An entrance / exit management gate through which a person, an animal, or an object, which is a passing object having a communication device for transmitting / receiving data for entrance / exit management, passes at a predetermined interval near the periphery of the entrance / exit management gate. The loop-shaped antenna wire wound in the clockwise direction and the loop-shaped antenna wire wound in the counterclockwise direction so that the loop surfaces face each other, and both antenna wires are connected. An entrance / exit management gate, characterized in that the passing body passes between both antenna lines. 3. An entrance / exit management gate through which a person, an animal, or an object, which is a passing object having a communication device for transmitting / receiving entry / exit management data, passes at a predetermined interval near the periphery of the entrance / exit management gate. The loop-shaped antenna wire wound in the clockwise direction and the loop-shaped antenna wire wound in the counterclockwise direction so that the loop surfaces are almost opposite to each other, and both antenna wires are connected. The entrance / exit control gate is characterized in that the passing body passes near both antenna lines.