JP2002356227A - Non-contact article management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a non-contact article management system capable of quickly and accurately grasping an inventory or the like of a management object article within a narrow range without using an electric wave with strong output or an antenna changer. SOLUTION: The non-contact article management system manages without contact the management object article added with an RF tag sending one's identification information in response to an electric wave from a reading unit. It is characterized by that it is provided with a plurality of antennas 110-1 to 110-n, etc., emitting an electric wave for reading the identification information of the RF tag, picking up an electric wave including the identification information sent from the RF tag, and having almost the same area as the management object article, a switching function alternatively switching and connecting the plurality of antennas, and reading units 110u, etc., connected with the plurality of antennas, sending an electric wave for reading the identification information of the RF tag added to the management object article, and reading the identification information from the RF tag responding to the electric wave.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
F tag (Radio Frequency tag or Radio Frequency I
D tag) and a reading unit, and a non-contact article management system that detects and manages, in a non-contact manner, the presence or absence of an article to be managed at a predetermined position, particularly in response to radio waves from the reading unit. R that issues its own identification information
The present invention relates to a non-contact article management system for managing an article to be managed to which an F tag is added in a non-contact manner.

[0002]

2. Description of the Related Art As a non-contact article management system, an RF tag which emits its own identification information in response to a radio wave from a reading unit is added to an article to be managed in advance, and the article to be managed is contactlessly contacted. A system with a configuration for managing has been proposed.

[0003] An RF tag used in the non-contact article management system having such a configuration has a frequency of 13.56 MHz.
A system using I. CODE (a trademark of Konin Klekka Philips Electronics NV) using radio waves is known.

[0004] As a non-contact article management system having such a configuration, an antenna having an area much larger than the article to be managed is used, and the antenna is switched by a switch, and the identification information of the RF tag is read by a reading unit. Generating radio waves for reading the radio waves and reacting to the radio waves
It was configured to read identification information from the tag.

[0005] As a specific example, an RF tag is added to each file folder, and one antenna is arranged for each of several archives. In a more specific example, when three 8-stage archives are used, the configuration is as shown in FIG. That is, the antenna (3
1-1 to 31-8, 32-1 to 32-8, 33-1 to 33-8) are provided (here, eight for each library), and their antennas (31-1 to 31-8). , 32-1 to 32-8, 33-1 to 33-
8) was connected to the reading unit (R / W unit 10) via the antenna switch (21, 22, 23).

[0006] In the non-contact article management system having such a configuration, the antenna switching units 21, 22 and 23 use the antenna 3.
While switching from 1-1 to 33-8 in a time-division manner, the inventory of the file folders at each level in each library is managed by the reaction of the RF tag (the presence or absence of a management target object to be detected and managed). By making the reading unit a readable / writable unit, it is possible not only to read the identification information from the RF tag but also to write it to a memory area provided in the RF tag.

[0007]

In the non-contact article management system described above, the antenna is far more than the size of the article to be managed (for example, the bottom area of the article to be managed) for which the presence or absence of the stock is to be managed. Because of its large size, there is an advantage that a certain area can be managed collectively, but on the other hand, in order to cover the area, a radio wave having a large output (for example, about 1 W) corresponding to the area must be used. was there.

In the non-contact article management system having such a configuration, when a radio wave having a large output is used, it is necessary to apply for a license of a radio station since the output exceeds a specific low power output range. There is also a problem that the power is large and the running cost is high as a result.

Further, since the antenna used is large, there is a problem that even if it is possible to detect that it is within the range corresponding to the antenna, it is not possible to grasp the position where the individual article to be managed is arranged in detail. In particular, when managing chemicals, it is very important to detect and manage whether or not the object moves, and the problem becomes even more serious if the location of the arrangement cannot be grasped in detail.

[0010] Further, by using a radio wave having a certain output, the RF tag of the file folder placed in another adjacent stage (upper stage or lower stage) of the library reacts and malfunctions. There was also a problem that there was a possibility of occurrence.

[0011] In addition, in the non-contact article management system having such a configuration, since an output uses a radio wave having a certain strength, an antenna switching device for switching each antenna is adapted to correspond to the strength of the radio wave output. There was also a problem that it had to be provided separately. In addition, in the non-contact article management system having such a configuration, a plurality of (here, a total of 24) antennas are switched in a time-division manner using an antenna switching device, so that it takes time to scan the entirety. There was also a problem that it required.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to eliminate the need to use radio waves having a strong output, and to reduce the stock position of managed articles to be detected and managed in a narrow space. An object of the present invention is to provide a non-contact article management system which can be quickly and accurately grasped in a range and does not require a separate antenna switch.

[0013]

The above-mentioned problems can be solved by the following means. (1) The invention according to claim 1 is a non-contact article management system for non-contact management of an article to be managed to which an RF tag that emits its own identification information in response to a radio wave from a reading unit is added. Radiating radio waves for reading the identification information of the RF tag, and capturing radio waves including the identification information emitted from the RF tag, a plurality of antennas having substantially the same area as the article to be managed, A switching function for selectively switching and connecting a plurality of antennas is provided, and a radio wave for reading identification information of the RF tag added to the article to be managed is generated, and R which reacts to the radio wave is generated.
A reading unit that reads identification information from an F tag and is connected to a plurality of antennas.

The radio wave generated by the reading unit and radiated from the antenna reacts with the RF tag in a state where the article to be managed is close to the antenna, and is close to another antenna. It is desirable that the RF tag of the managed article to be managed has a strength that does not respond.

According to the present invention, when non-contactly managing an article to be managed to which an RF tag that emits its own identification information in response to a radio wave is attached, a radio wave for reading the identification information of the RF tag is emitted. Further, an antenna for capturing radio waves including identification information emitted from the RF tag is configured to have substantially the same area as the article to be managed, and a plurality of antennas are provided.

The reading unit is provided with a switching function for selectively switching and connecting a plurality of antennas. With this, while the reading unit switches the plurality of antennas, it generates a radio wave for reading the identification information of the RF tag added to the article to be managed, and reads the identification information from the RF tag in response to the radio wave, At each antenna position, the inventory of the article to be managed is managed in a non-contact manner.

As a result, when the article to be managed is placed close to one of the antennas, the RF tag close to that antenna reacts to the radio wave and closes to another antenna. The RF tag of the managed article that is being controlled no longer responds, there is no need to use strong output radio waves, it is possible to quickly and accurately grasp the inventory of the managed article in a narrow range, and there is no need to use an antenna switch. A contact article management system can be realized.

(2) A non-contact article management system for non-contact management of an article to be managed to which an RF tag for emitting its own identification information in response to a radio wave from a reading unit is added. A plurality of antennas that emit radio waves for reading identification information of an RF tag, and capture radio waves including identification information emitted from the RF tag, and have an area approximately the same as that of the article to be managed. And a switching function for selectively switching the plurality of antennas for connection, generating a radio wave for reading identification information of the RF tag added to the managed object, and reacting to the radio wave. And a plurality of reading units each of which reads identification information from a plurality of antennas and is connected to a plurality of antennas.

The radio wave generated by the reading unit and radiated from the antenna reacts with the RF tag in a state where the article to be managed is close to the antenna and when the RF tag is close to another antenna. It is desirable that the RF tag of the managed article to be managed has a strength that does not respond.

According to the present invention, when non-contact management of an article to be managed to which an RF tag that emits its own identification information in response to a radio wave is added, a radio wave for reading the identification information of the RF tag is emitted, Further, an antenna for capturing radio waves including identification information emitted from the RF tag is configured to have substantially the same area as the article to be managed, and a plurality of antennas are provided.

The reading unit is provided with a switching function for selectively switching and connecting a plurality of antennas. With this, while the reading unit switches the plurality of antennas, it generates a radio wave for reading the identification information of the RF tag added to the article to be managed, and reads the identification information from the RF tag in response to the radio wave, At each antenna position, the inventory of the article to be managed is managed in a non-contact manner.

As a result, when the article to be managed is placed close to one of the antennas, the RF tag close to the antenna reacts to the radio wave and closes to another antenna. The RF tag of the managed article that is being controlled no longer responds, there is no need to use strong output radio waves, it is possible to quickly and accurately grasp the inventory of the managed article in a narrow range, and there is no need to use an antenna switch. A contact article management system can be realized. Thus, since a plurality of reading units to which a plurality of antennas are connected are provided, it is possible to quickly and accurately execute inventory management of a large number of managed articles in a wide range.

(3) A non-contact article management system for non-contact management of an article to be managed to which an RF tag for emitting its own identification information in response to a radio wave from a reading unit is added. A plurality of antennas that emit radio waves for reading identification information of an RF tag, and capture radio waves including identification information emitted from the RF tag, and have an area approximately the same as that of the article to be managed. And a switching function for selectively switching the plurality of antennas for connection, generating a radio wave for reading identification information of the RF tag added to the managed object, and reacting to the radio wave. Read the identification information from, and a plurality of reading units each connected to a plurality of antennas, controlling the reading of the plurality of reading units,
And a control unit for grasping the management status of the management target article in the plurality of reading units.

The radio wave generated by the reading unit and radiated from the antenna reacts with the RF tag in a state where the article to be managed is close to the antenna, and is close to another antenna. It is desirable that the RF tag of the managed article to be managed has a strength that does not respond.

According to the present invention, when non-contactly managing an article to be managed to which an RF tag that emits its own identification information in response to a radio wave is attached, a radio wave for reading the identification information of the RF tag is emitted. Further, an antenna for capturing radio waves including identification information emitted from the RF tag is configured to have substantially the same area as the article to be managed, and a plurality of antennas are provided.

Thus, the reading unit has a switching function for selectively switching and connecting a plurality of antennas. With this, while the reading unit switches the plurality of antennas, it generates a radio wave for reading the identification information of the RF tag added to the article to be managed, and reads the identification information from the RF tag in response to the radio wave, At each antenna position, the inventory of the article to be managed is managed in a non-contact manner.

As a result, when the article to be managed is placed close to one of the antennas, the RF tag close to that antenna reacts to the radio wave and closes to another antenna. The RF tag of the managed article that is being controlled no longer responds, there is no need to use strong output radio waves, it is possible to quickly and accurately grasp the inventory of the managed article in a narrow range, and there is no need to use an antenna switch. A contact article management system can be realized. In the case where a plurality of reading units to which a plurality of antennas are connected are provided and a plurality of reading units are controlled by the control means, inventory management of a large number of managed articles in a wide range is performed. In addition, it can be executed quickly and accurately.

(4) A non-contact article management system for non-contact management of an article to be managed to which an RF tag for emitting its own identification information in response to a radio wave from a reading unit is added. A plurality of antennas that emit radio waves for reading identification information of an RF tag, and capture radio waves including identification information emitted from the RF tag, and have an area approximately the same as that of the article to be managed. And a switching function for selectively switching the plurality of antennas for connection, generating a radio wave for reading identification information of the RF tag added to the managed object, and reacting to the radio wave. The read information is read from a plurality of antennas, and a plurality of read units each having a plurality of antennas connected thereto, and an opening provided for each of a plurality of antenna groups connected to each read unit. A switch for detecting opening and closing of a body, and a control for referring to a detection result of the switch and controlling reading of a reading unit connected to a group of antennas that have opened and closed the opening and closing body to grasp a management status of a managed article. And a non-contact article management system.

The radio wave generated by the reading unit and radiated from the antenna reacts with the RF tag in a state in which the article to be managed is close to the antenna, and is close to another antenna. It is desirable that the RF tag of the managed article to be managed has a strength that does not respond.

According to the present invention, when non-contact management of an article to be managed to which an RF tag that emits its own identification information in response to a radio wave is added, a radio wave for reading the identification information of the RF tag is emitted, Further, an antenna for capturing radio waves including identification information emitted from the RF tag is configured to have substantially the same area as the article to be managed, and a plurality of antennas are provided.

Thus, the reading unit has a switching function for selectively switching and connecting a plurality of antennas. With this, while the reading unit switches the plurality of antennas, it generates a radio wave for reading the identification information of the RF tag added to the article to be managed, and reads the identification information from the RF tag in response to the radio wave, At each antenna position, the inventory of the article to be managed is managed in a non-contact manner.

As a result, in a state where the article to be managed is placed close to one of the antennas, the RF tag close to the antenna reacts to the radio wave and closes to another antenna. The RF tag of the managed article that is being controlled no longer responds, there is no need to use strong output radio waves, it is possible to quickly and accurately grasp the inventory of the managed article in a narrow range, and there is no need to use an antenna switch. A contact article management system can be realized.

Thus, a plurality of reading units to which a plurality of antennas are connected are provided, and a switch for detecting the opening / closing of an opening / closing member provided for each of a plurality of antenna groups connected to each reading unit is provided. It is provided, and since a plurality of reading units are controlled by control means for monitoring the detection result of the switch, even when performing inventory management of a large number of managed articles in a wide range,
It can be executed quickly and accurately.

The term "substantially the same area as that of the article to be managed" used herein means that the area for recognizing the RF tag only needs to be substantially sufficient. It refers to the area occupied when placed at a specific position by placing, hooking, or the like.

[0035]

Embodiments of the present invention will be described below in detail with reference to the drawings. However, the present invention is not limited by this embodiment. The non-contact article management system according to the present embodiment non-contactly manages an article to be managed (not shown) to which a known RF tag that emits its own identification information in response to a radio wave from each reading unit is added. Is what you do. FIG. 1 is a block diagram illustrating an electrical configuration of a contactless article management system according to an embodiment of the present invention.

As shown in FIG. 1, the non-contact article management system includes m units 110, 120,..., 1m0 for reading for detection management, a control unit 101,
A unit selector 102 and a switch detector 103 are provided. The fact that the m units 110, 120,..., 1m0 are provided in the non-contact article management system means that the configuration corresponds to a desired number according to the target surface on which the detection management articles are placed. Is what it means.

Each of the units 110, 120,.
, 1m0 are each configured to have one reading unit and n antennas. Each unit 11
That each of 0, 120,..., 1m0 has n antennas means a configuration corresponding to the number of RF tags to be detected and managed, that is, the number of articles to be managed. is there.

The control unit 101 includes a computer, control software, and the like. The control unit 101 controls reading of a plurality of reading units described later in the non-contact management system, and controls the management status of the articles to be managed in the plurality of reading units. Figure out.

The first unit 110 is arranged on one drawer of a storage case or one shelf in a locker. The first unit 110 includes n antennas 1
10-1 to 110-n and a unit 110u. The n antennas 110-1 to 110-n have substantially the same area as the article to be managed.

The reading unit 110u is connected to the n antennas 110-1 to 110-n and has a switching function of selectively switching the n antennas 110-1 to 110-n for connection. RF added to target article
Generates radio waves for reading tag identification information, and
The identification information is read from the RF tag in response to the radio wave. Note that the reading unit 110u is
It has at least the function of reading an RF tag, and may be capable of writing as well as reading. In this embodiment, a readable and writable “R
/ W unit ”.

The unit selection unit 102 selects the first unit 110 to the m-th unit 1m0 and selects the control unit 101
It is for connecting with. Unit selection unit 102
Is configured to be appropriately selected according to the number of units. The specific selection of the unit selection unit 102 may be a configuration in which a plurality of units are selected by bus wiring, or a configuration in which a plurality of units are selected by star connection.

The switch detecting section 103 transmits to the control section 101 the detection results of the switches 151 to 15m corresponding to the first to m-th units 110m0 to 1m0, respectively. The switches 151 to 15m are arranged in the vicinity of an opening / closing unit such as a storage case and a locker in which the first unit 110 to the m-th unit 1m0 are respectively arranged. Therefore, when the lid, which is the opening / closing body, is opened / closed by a storage case, a locker, or the like, and the opening / closing section is changed, each switch detects the opening / closing, and the unit that has been opened / closed is selected based on the detection result. The control unit 101 controls each unit so that the reading is controlled by the selection unit 102.

The overall configuration of the non-contact article management system and the functions of each section are as described above. Hereinafter, more specific embodiments of the present invention and their functions will be described.

FIG. 2 shows a configuration of a first drawer of a storage case, which is a main part of a more specific embodiment of the present invention. Note that this corresponds to the first unit in the system shown in FIG. Reference numeral 111 denotes a substrate, which is formed in a size corresponding to the bottom surface of the drawer described above. Thus, four antennas 110-1 to 110-4 are provided on the substrate 111.

The antennas 110-1 to 110-4 are specifically loop antennas, and are formed by, for example, printed wiring. Further, the R / W unit 110u is arranged vertically to the board 111 via a connector or a socket (not shown). The length of A of the substrate 111 is determined according to the width of the drawer,
Is determined according to the drawer size of the drawer.
The height of the / W unit 110u is determined to be within the height of the drawer.

The second drawer and the third
, Respectively correspond to the second unit 120, the third unit 130,... In FIG. 1, and each drawer has the same configuration as the first drawer.

The first drawer is provided with a switch 151 for detecting opening and closing. The switch 151 is connected to the switch detection unit 103. Switch detector 1
03 transmits the detection result of the switch 151, that is, the presence or absence of opening and closing of the first drawer to the control unit 101. The other drawers of the storage case are provided with switches for opening / closing detection similarly to the first drawer, and the unit selection unit 102 selects a unit that has been opened / closed according to the detection result of each switch. The control unit 1 controls the reading.
01 is configured to control each unit.

In this embodiment, the radio waves generated by the R / W units 110, 120,... And radiated from the antenna are generated when the article to be managed is close to the antenna. It is desirable that the RF tag of the object to be managed that is responsive to the RF tag and that is close to another antenna has a strength (for example, about 10 mW) that does not react.

As described above, in this embodiment,
When contactlessly managing an article to be managed to which an RF tag that emits its own identification information in response to a radio wave is attached, emits a radio wave for reading the identification information of the RF tag, and
An antenna for capturing a radio wave including identification information emitted from a tag is configured so as to have substantially the same area as the article to be managed, and is provided with a plurality of antennas. Then, R /
Each of the W units 110, 120,... Has a switching function of selectively switching and connecting four antennas.

With this configuration, the R / W unit 11
0, 120,... Generate radio waves for reading the identification information of the RF tag added to the article to be managed while switching each of the four antennas, and identify the RF tag in response to the radio waves. The information is read and the stock of the article to be managed is managed in a non-contact manner at the position of each antenna.

That is, when the drawer is opened and closed in the storage unit to be managed, the opening and closing of the drawer is performed by one of the switches 151, 152,.
03, and the detection result is transmitted to the control unit 101. The control unit 101 selects one of the first unit 110, the second unit 120,... Where the opening and closing of the drawer is detected by the unit selection unit 102, and activates the selected unit.

Here, for example, if the control unit 101 activates the first unit 110 based on the detection result of the switch 151, power is supplied to the R / W unit 110u. The R / W unit 110u includes an antenna 110
Radio waves for reading the identification information of the RF tag are radiated from each of -1 to 110-4, and the radio waves including the identification information emitted from the RF tag are captured.

Then, the identification information from the captured RF tag is transmitted to the control unit 101. The control unit 101 compares the identification information from the previous RF tag with the identification information from the current RF tag, and determines the management target article newly placed on the antennas 110-1 to 110-4, the antenna 110- 1-110-4
Recognize the managed article removed from above. This operation is continued until the switch 151 detects that the drawer is closed.

By such an operation, in a state where the article to be managed is placed close to any of the antennas,
The RF tag near the antenna reacts to the radio wave,
In addition, the RF of the managed article in proximity to another antenna
The tag stops responding, there is no need to use strong output radio waves, the inventory of managed articles can be accurately grasped in a narrow range, and a non-contact article management system that does not need to use a separate antenna switch is realized. it can. In addition, since it is not necessary to use a radio wave having a strong output, power consumption can be suppressed to a low value, specific low power or low power can be used, and there is an advantage that a wireless station license is not required.

In addition, by switching a plurality of small-area antennas with small power, it is possible to accurately grasp the position of the article to be managed. For example, according to the present embodiment, even if the position of the article to be managed is simply changed in the drawer, position detection that was impossible with the conventional large antenna that covers one stage with one antenna is performed. Will be possible. In particular, even if valuables and drugs are in the same drawer, an extremely large effect is obtained when it is significant whether or not the position is moved. Therefore, the non-contact article management system according to the present embodiment is suitable for managing valuables and chemicals.

The storage case is provided with a plurality of R / W units to which a plurality of antennas are connected, and a drawer provided with each of the R / W units 110, 120,... Switches 151-
153 is provided, and furthermore, since the necessary R / W unit is controlled by monitoring the detection result of the switch, inventory management of a large number of managed articles in a wide range where a large number of drawers exist is provided. Unnecessary R / W when performing
The unit can be executed quickly and accurately without operating the unit.

Although the number of units in the non-contact article management system shown in FIG. 1 is m, it is desirable that the number of units is appropriately selected according to the number of drawers, shelves and the like to be detected and managed.

Similarly, in the non-contact article management system shown in FIG. 1, each unit has n antennas. However, it is desirable that the number of antennas be appropriately selected according to the number of articles to be detected and managed. It is better to select a desired number for each. That is, even in the same non-contact article management system, it is not necessary that all units have the same number of antennas, and it is better to determine the number of detection management targets of each unit.

In the non-contact article management system shown in FIG. 2, the object to be managed is the storage case, and the article to be managed is placed on the drawer. What is performed may be a configuration such as a mounting shelf.

Then, the identification information from the captured RF tag is transmitted to the control unit 101. In the above embodiment, when the control unit 101 receives the identification information from the RF tag, the control unit 101 recognizes the management target article on the mounting surface corresponding to the antennas 110-1 to 110-4. The operation may be continued until the drawer is closed by the switch 151.

In the above-described embodiment, the article to be managed is placed in the drawer of the storage case or on the shelf of the locker. However, a hook is provided on the wall, and the article to be managed is hooked on the hook. Even in such a case, the non-contact article management system of the present invention can be used.

[0062]

As described above in detail, according to the present invention, it is not necessary to use a radio wave having a strong output, the range to be detected can be narrowed, and the inventory of managed articles can be quickly and accurately determined. It is possible to realize a non-contact article management system that can be grasped and does not need to be separately provided with an antenna switch.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an electrical configuration of a system according to an embodiment of the present invention;

FIG. 2 is an external perspective view of a main part of a system according to an example of the embodiment of the present invention.

FIG. 3 is a block diagram showing an electrical configuration of a conventional device.

[Explanation of symbols]

 101: control unit 110: first unit 110u: R / W unit 110-1 to 110-n: antenna 120: second unit 120u: R / W unit 120-1 to 120-n: antenna 1m0: m-th unit 1m0u : R / W unit 1m0-1 to 1m0-n: Antenna 102: Unit selection unit 103: Switch detection unit 151 to 153: Switch

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04B 1/59 H04B 1/59 5/02 5/02 F term (Reference) 3F022 FF01 FF10 MM02 MM04 MM08 MM22 MM35 QQ01 5B058 CA15 KA02 KA04 KA21 YA20 5J070 AD03 AK15 BC06 BC29 5K012 AA02 AA04 AC08 AC10 BA07

Claims (5)

[Claims] 1. A contactless article management system for contactlessly managing an article to be managed to which an RF tag that emits its own identification information in response to a radio wave from a reading unit, wherein the identification information of the RF tag is Emitting radio waves for reading, and capturing radio waves including identification information emitted from the RF tag, a plurality of antennas having substantially the same area as the article to be managed; and A switching function for switching to and connecting to the antenna, generating a radio wave for reading identification information of the RF tag added to the article to be managed, reading identification information from the RF tag in response to the radio wave, and providing a plurality of antennas. And a reading unit connected to the non-contact article management system. 2. A non-contact article management system for non-contactly managing an article to be managed to which an RF tag which emits its own identification information in response to a radio wave from a reading unit, wherein the identification information of the RF tag is Emitting radio waves for reading, and capturing radio waves including identification information emitted from the RF tag, a plurality of antennas having substantially the same area as the article to be managed; and A switching function for switching to and connecting to the target, generating a radio wave for reading the identification information of the RF tag added to the article to be managed, reading the identification information from the RF tag in response to the radio wave, A non-contact article management system, comprising: a plurality of reading units to which antennas are connected. 3. A non-contact article management system for contactlessly managing an article to be managed to which an RF tag which emits its own identification information in response to a radio wave from a reading unit, wherein the identification information of the RF tag is Emitting radio waves for reading, and capturing radio waves including identification information emitted from the RF tag, a plurality of antennas having substantially the same area as the article to be managed; and A switching function for switching to and connecting to the target, generating a radio wave for reading the identification information of the RF tag added to the article to be managed, reading the identification information from the RF tag in response to the radio wave, A plurality of reading units to which antennas are connected, controlling reading of the plurality of reading units, and managing the plurality of reading units A non-contact article management system, comprising: control means for grasping a management state of a target article. 4. A non-contact article management system for contactlessly managing an article to be managed to which an RF tag which emits its own identification information in response to a radio wave from a reading unit, wherein the identification information of the RF tag is Emitting radio waves for reading, and capturing radio waves including identification information emitted from the RF tag, a plurality of antennas having substantially the same area as the article to be managed; and A switching function for switching to and connecting to the target, generating a radio wave for reading the identification information of the RF tag added to the article to be managed, reading the identification information from the RF tag in response to the radio wave, A plurality of reading units to which the antennas are connected, and a switch for detecting the opening / closing of an opening / closing body provided for each of a plurality of antenna groups connected to each of the reading units And control means for referring to the detection result of the switch, controlling reading of a reading unit to which the antenna group having opened and closed the open / close body is connected, and grasping the management status of the managed article. Non-contact article management system characterized by the following. 5. The radio wave generated by the reading unit and radiated from the antenna reacts with the RF tag in a state where the article to be managed is close to the antenna, and is close to another antenna. 2. The RF tag of a managed article that has a strength that does not react.
The non-contact article management system according to claim 4.