JP5418764B2 - IC tag recognition device - Google Patents

Description

  The present invention relates to an IC tag recognition device suitable for use in a production site where a large number of parts are handled, for example.

In production sites that handle a large number of parts as described above, it is necessary to grasp the working time such as processing time and inspection time for the parts, and to recognize the situation such as where the parts are.
In such a case, an IC tag is attached to each of a large number of parts, and the IC tag reader installed in each work area reads the IC tag data of each part, so that parts can be carried in, started, finished, and taken out. It is common to get each hour.

Here, for example, in the recognition apparatus disclosed in Patent Document 1, IC tag data attached to a component placed on a turntable placed in a work area is transmitted via a plurality of antennas placed around the turntable. By making the tag reader read, it is recognized that there is a part in the work area.
In this recognition apparatus, when work is being performed on many parts gathered in one work area, a plurality of antennas are rotated in the direction opposite to the rotation direction of the turntable while rotating the turntable. Are sequentially activated, so that a large number of IC tags placed on the rotary table are recognized.

JP 2005-4532 A

  However, in the conventional recognition device described above, if the IC tags placed on the turntable are stacked, in most cases, all the IC tags on the turntable can be recognized. When an IC tag exceeding the allowable number is placed on the table in an overlapping manner, it is impossible to recognize all of these IC tags. In such a case, an antenna or an IC tag reader itself can be added, There is a problem in that it is necessary to take measures such as reducing the recognition of the IC tag only once at the time of carrying in the component, and it has been a conventional problem to solve this problem.

  The present invention has been made paying attention to the above-described conventional problems. For example, many parts are concentrated in one work area, and the number of IC tags attached to these parts exceeds the allowable number. To provide an IC tag recognizing device that can recognize a large number of IC tags without omission and read data such as work status of all parts, even if they are collected in It is an object.

  As described above, when data such as the work status of parts on the production site is recognized by IC tags, the presence of the IC tag attached to the parts is continuously recognized by the IC reader placed in the work area during work on the parts. If the presence of the IC tag is recognized once every several seconds to several tens of seconds until the end of the work, the purpose of grasping the work status can be achieved.

Therefore, the present inventors pay attention to this, and when each recognition of a large number of IC tags is repeatedly performed at intervals, and if this recognition interval (time) is set to be long, only the corresponding amount. It has been found that the number of IC tags that can be recognized increases.
That is, the invention according to claim 1 of the present invention is a recognized IC tag recognizer reads the data of the IC tag of the IC tag or radio type electromagnetic induction method, a plurality of IC tags Alignment state and detachably held to filter grayed holder, relatively changes the positional relationship between the IC tag reader positioned in the vicinity of the tag holding unit, a plurality of IC tags held in the tag holder and the IC tag reader A plurality of IC tag readers for sequentially and repeatedly reading the data of the plurality of IC tags at appropriate intervals, and a plurality of IC tags that are detachably held in an aligned state in the longitudinal direction by press-fitting each of the IC tags. An endless strip having a slit is used as a tag holding portion, and the posture changing mechanism rotates the rotary shaft by rotating two rotary shafts that are parallel to each other and spanning the endless strip. By circulating the end shaped strip body between two rotating axes, as characterized in that a configuration that includes a sequential repetitive driving source to be read at appropriate intervals each data of a plurality of IC tags in the IC tag reader Therefore, the configuration of the IC tag recognition device is used as a means for solving the above-described conventional problems.

The invention according to claim 2 of the present invention is a recognized IC tag recognizer reads the data of the IC tag, and the tag holder for detachably holding a plurality of IC tags in alignment, the tag An IC tag reader located in the vicinity of the holding unit, a plurality of IC tags held in the tag holding unit and a positional relationship between the IC tag readers are relatively changed, and each data of the plurality of IC tags is transferred to the IC tag reader. Including a plurality of slits that are detachably held in an aligned state in the circumferential direction by press-fitting a plurality of IC tags, respectively, as a tag holder, The posture changing mechanism applies a rotational force around the axis to the cylindrical body to rotate the plurality of IC tags on the cylindrical body, thereby causing each data of the plurality of IC tags to be transferred to the IC tag reader. It has a configuration that includes a drive source for sequentially and repeatedly read at appropriate intervals.

Furthermore, in the IC tag recognition apparatus according to an exemplary embodiment of the present invention, the tag holding unit, a plurality of slits that detachably holds detachable by press-fitting the one end of each of the plurality of IC tags are aligned or stacked respectively The posture changing mechanism moves relative to the plurality of IC tags held by the tag holding unit in the alignment or stacking direction of the IC tags, and the plurality of IC tags are moved along with the relative movement. By sequentially abutting each other end and turning the IC tag one by one, a configuration is provided in which the IC tag reader sequentially and repeatedly reads the data of the plurality of IC tags at appropriate intervals.

Here, an endless strip that detachably holds a plurality of IC tags aligned in the longitudinal direction is used as a tag holding portion, or a cylindrical body that detachably holds a plurality of IC tags aligned in the circumferential direction. In the case of using a tag holding unit, an endless strip or cylinder is disposed so that the IC tag passes through the recognition area of the IC tag reader.
As a means for detachably holding the IC tag on the tag holding portion, as a reference example , the IC tag is clamped with a clip in addition to a means for press-fitting the IC tag into a slit slightly narrower than the thickness of the IC tag. Means can be employed.

On the other hand, the IC tag recognition device according to a reference example, wherein the posture changing mechanism includes a contact body that moves relative to the plurality of IC tags held by the tag holding unit in the alignment or stacking direction of the IC tags. In this case, the tag holding portion and the contact body are arranged so that the other end sides of the plurality of IC tags are turned one by one in the recognition area of the IC tag reader by the contact body.
Then, the size of the endless belt or cylinder and the operation speed by the posture changing mechanism are set according to the number of IC tags to be held and the recognition interval allowable in the recognition system.

In the IC tag recognition device according to the present invention, for example, when a part attached with an IC tag is carried into a work area in a production site where a large number of parts are handled, first, the IC tag attached to the part is attached to a tag holding unit. Press fit into the slit and hold.
Next, when the posture changing mechanism is operated in this state, the relative positional relationship between the IC tag on the tag holding unit and the IC tag reader located in the vicinity of the tag holding unit changes, and the IC tag data is changed to the IC tag reader. Are read repeatedly at appropriate intervals.

In this case, when many parts with attached IC tag is concentrated in the working area, after detachably it is held in an aligned state of each IC tag of the plurality of components to the tag holding unit, the posture changing mechanism When operated, the relative positional relationship between the plurality of IC tags on the tag holding unit and the IC tag reader changes, and the data of the plurality of IC tags are sequentially read repeatedly at appropriate intervals by the IC tag reader. Thus, even if a large number of IC tags are held on the tag holding unit, a large number of IC tags can be recognized without omission without increasing the number of IC tag readers.

In addition, when a part attached with an IC tag has been carried into this work area, if the work for the preceding part has already been performed, that is, if the posture changing mechanism has already been operated, the operation of the posture change mechanism temporarily stops, after detachably held in an aligned state following the other in the tag holder the IC tag of the new components, again, to start the operation of the posture changing mechanism.

On the other hand, when the work on one of the many parts in the work area is completed, the operation of the posture changing mechanism is temporarily stopped in the same manner as described above, and the IC tag corresponding to the part is removed from the tag holding unit. After removing, the operation of the posture changing mechanism is started again.
When the number of IC tags to be held by the tag holding unit is very large, or when it is necessary to shorten the interval for recognizing one IC tag, an appropriate number of ICs are placed at appropriate positions near the tag holding unit. A tag reader can be additionally arranged.

IC tag recognition apparatus according to claim 1, 2 of the present invention, without increasing the and IC tag reader without leakage large number of IC tag, a very excellent effect that recognized that it is possible to is provided.
Further, in the IC tag recognition apparatus according to claim 1, 2 of the present invention, without complicating the structure, a very excellent effect that it is possible to recognize a large number of IC tag obtained.

1 is a perspective view schematically showing an IC tag recognition device according to an embodiment of the present invention. FIG. It is perspective explanatory drawing which shows simply the IC tag recognition apparatus by other Examples of this invention. It is front explanatory drawing which shows simply the IC tag recognition apparatus by one reference example of this invention. It is a perspective explanatory view which shows simply the IC tag recognition apparatus by further another Example of this invention.

Hereinafter, an IC tag recognition device according to the present invention will be described with reference to the drawings.
Example 1
FIG. 1 shows an embodiment of an IC tag recognition apparatus according to the present invention. In this embodiment, the IC tag recognition apparatus according to the present invention is attached to each part at a production site handling a large number of parts. An example of an IC tag recognition device that reads and recognizes IC tag data will be described as an example.

As shown in FIG. 1, the IC tag recognition device 1 is a device provided for each work area such as a processing area or an inspection area in a production site, and includes an IC tag reader 2 and an endless belt (tag holding unit). ) 3 and a posture changing mechanism for driving the endless belt 3.
A plurality of slits 3a for detachably holding the IC tag T are formed in the endless strip 3 at substantially equal intervals in the longitudinal direction. The endless strip 3 is formed in the IC tag T on the plurality of slits 3a. The plurality of IC tags T are held in an aligned state.

The posture changing mechanism applies two rotational shafts 4, 4 that are parallel to each other to which the endless strip 3 is stretched, and one of these rotational shafts 4, 4 to apply a rotational force to the endless strip 3. A motor (drive source) 5 for circulating the body 3 between the two rotating shafts 4 and 4 is provided.
In this posture changing mechanism, the endless strip 3 is circulated between the two rotating shafts 4 and 4 by the motor 5, and a plurality of IC tags T on the endless strip 3 are indicated by cross marks of the IC tag reader 2. By sequentially passing the recognition area A, the IC tag reader 2 sequentially reads the data of these IC tags T repeatedly.

Note that the interval between the plurality of slits 3a in the endless strip 3 and the operation speed of the endless strip 3 by the posture changing mechanism depend on the number of IC tags T to be held and the recognition interval allowable in the recognition system. Set.
In this IC tag recognition device 1, when a part to which the IC tag T is attached is carried into the work area, the IC tag T attached to the part is first press-fitted into the slit 3a of the endless strip 3 and held. .

Thereafter, when the motor 5 of the posture changing mechanism is operated, the endless strip 3 circulates between the two rotating shafts 4 and 4, so that the IC tag T held on the endless strip 3 is Every time it passes through the recognition area A of the tag reader 2, the data of the IC tag T is read by the IC tag reader 2.
At this time, when many parts attached with the IC tag T are concentrated in this work area, the IC tags T of the plurality of parts are respectively press-fitted and held in the plurality of slits 3 a of the endless strip 3.

  When the endless belt 3 is circulated between the two rotating shafts 4 and 4 by operating the motor 5 of the posture changing mechanism in this state, a plurality of pieces held in an aligned state on the endless belt 3 are arranged. Since the IC tag T sequentially passes through the recognition area A of the IC tag reader 2 and the data of these IC tags T are sequentially read by the IC tag reader 2, the endless strip 3 is thus obtained. Even when a large number of IC tags T are held on top, a large number of IC tags T can be recognized without omission without increasing the number of IC tag readers 2.

Here, when the work for the preceding part is already performed at the time of carrying in the part, that is, when the posture changing mechanism is already operating, the motor 5 of this posture changing mechanism is temporarily stopped. Then, after the IC tag T of a new part is press-fitted and held in the vacant slit 3a of the endless strip 3, the operation of the motor 5 of the posture changing mechanism is started again.
On the other hand, when the work for one component is completed, the motor 5 of the posture changing mechanism is temporarily stopped in the same manner as described above, and after the IC tag T corresponding to the component is removed from the endless strip 3, The operation of the motor 5 of the posture changing mechanism is started.
(Example 2)
FIG. 2 shows another embodiment of the IC tag recognition apparatus according to the present invention.

In the IC tag recognizing device 21 of this embodiment, as shown in FIG. 2, the cylindrical body 23 in which a plurality of slits 23a for detachably holding the IC tag T are formed at substantially equal intervals in the circumferential direction is tag-held. As a part.
In this embodiment, the posture changing mechanism applies a rotational force about the axis to the cylindrical body 23 to rotate a plurality of IC tags T held in an aligned state on the cylindrical body 23 (drive source). ) 25.

Also in this case, the interval between the plurality of slits 23a in the cylindrical body 23 and the rotational speed of the cylindrical body 23 by the posture changing mechanism are set according to the number of IC tags T to be held and the recognition interval allowable in the recognition system. .
In this IC tag recognizing device 21, the cylindrical body 23 is rotated about its axis by the motor 25 of the attitude changing mechanism, and a plurality of IC tags T held in an aligned state on the cylindrical body 23 are turned, so that the IC tag reader 2 The IC tag reader 2 is made to repeatedly read each data of the IC tag T by sequentially passing the recognition area A indicated by the cross mark.

That is, even in this IC tag recognition device 21, even if a large number of IC tags T are held on the cylindrical body 23, a large number of IC tags T are recognized without omission without increasing the number of IC tag readers 2. Will get.
( Reference Example 1 )
FIG. 3 shows a reference example of the IC tag recognition apparatus according to the present invention.

In the IC tag recognizing device 31 of this reference example, as shown in FIG. 3, the tag 33 holds a block 33 in which a plurality of slits 33a for detachably holding the IC tag T are formed on the surface (the upper surface in the drawing) at substantially equal intervals. As a part.
In this reference example, the posture changing mechanism includes a drive source (not shown) that reciprocates the block 33 in the direction along the reading surface of the IC tag reader 2 and in the alignment or stacking direction (left and right direction in the drawing) of the IC tag T. Along with the movement of the block 33, there is provided an abutting body 34 that sequentially abuts each other end of the plurality of IC tags T held in an aligned or stacked state on the block 33 and turns the IC tags T one by one. It has a configuration.

  In this IC tag recognition device 31, the block 33 is reciprocated in the alignment or stacking direction of the IC tags T by the drive source of the attitude changing mechanism, and each of the plurality of IC tags T held in the aligned or stacked state on the block 33 is stored. The other end side is sequentially turned in the recognition area A indicated by the cross mark of the IC tag reader 2 by the contact body 34 so that the IC tag reader 2 sequentially reads each data of these IC tags T. Yes.

Therefore, even in this IC tag recognition device 31, even if a large number of IC tags T are held on the block 33, a large number of IC tags T can be recognized without omission without increasing the number of IC tag readers 2. It will be.
(Example 3 )
FIG. 4 shows still another embodiment of the IC tag recognition apparatus according to the present invention.

As shown in FIG. 4, the IC tag recognition device 41 is different from the IC tag recognition device 1 according to the first embodiment in that the two rotating shafts 4 that are parallel to each other and on which the endless strip 3 is stretched. , 4 is widened, and the IC tag reader 2 is disposed in the vicinity of each of the rotating shafts 4, 4, and the other configuration is the same as the IC tag recognition device 1 according to the first embodiment.
As described above, in the IC tag recognition device 41 according to this embodiment, since the two IC tag readers 2 are arranged in the vicinity of the endless strip 3, a large amount of IC tags T are formed on the endless strip 3. Even if held, a large number of IC tags T can be recognized without omission. In addition, the IC tag recognition device 41 can cope with a case where it is desired to recognize one IC tag T at a short interval.

Structure of the IC tag recognition apparatus according to the present invention is not limited to the configuration of the above embodiment, as another configuration, for example, the endless belt member 3 and the cylindrical body 2 3 as a tag holding unit, can be employed or given the position number to facilitate finding a plurality of IC tags T for holding in Alignment state, the structure or to place a light-emitting diode.

1 , 21 , 4 1 IC tag recognition device 2 IC tag reader 3 Endless strip (tag holding part)
4 Rotating shaft (Attitude change mechanism)
5,25 Motor (drive source; attitude change mechanism)
23 Cylindrical body (tag holding part )

Claims (2)

An IC tag recognition device that reads and recognizes data of an IC tag,
A filter grayed holding portion to detachably hold a plurality of IC tags Alignment state,
An IC tag reader located in the vicinity of the tag holding unit;
A posture changing mechanism that relatively changes the positional relationship between the plurality of IC tags held by the tag holding unit and the IC tag reader, and causes the IC tag reader to sequentially and repeatedly read data of the plurality of IC tags at appropriate intervals. equipped with a,
An endless strip having a plurality of slits that are detachably held in an aligned state in the longitudinal direction by press-fitting a plurality of IC tags, respectively, is used as a tag holding portion,
The posture changing mechanism is configured to circulate the endless belt between the two rotation shafts by rotating the rotation shaft and the two rotation shafts that are parallel to each other over which the endless belt is stretched. An IC tag recognition apparatus comprising: a drive source that causes the IC tag reader to sequentially and repeatedly read data of a plurality of IC tags at appropriate intervals . An IC tag recognition device that reads and recognizes data of an IC tag,
A tag holding unit for holding a plurality of IC tags in an aligned state in a detachable manner;
An IC tag reader located in the vicinity of the tag holding unit;
A posture changing mechanism that relatively changes the positional relationship between the plurality of IC tags held by the tag holding unit and the IC tag reader, and causes the IC tag reader to sequentially and repeatedly read data of the plurality of IC tags at appropriate intervals. With
A cylindrical body having a plurality of slits that are detachably held in an aligned state in the circumferential direction by press-fitting a plurality of IC tags, respectively, as a tag holding portion,
The posture changing mechanism applies a rotational force about an axial center to the cylindrical body to rotate a plurality of IC tags on the cylindrical body, thereby causing each data of the plurality of IC tags to be sent to the IC tag reader at appropriate intervals. It has a drive source that allows repeated reading
The IC tag recognition apparatus characterized by the above-mentioned .

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