JP2008024510A - Access control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an access control system capable of surely controlling access by accurately discriminating the entering and leaving of a user to a specific area by preventing the entering of a person having no FRID tag and a person unregistered in advance by a necessary minimum constitution. <P>SOLUTION: This access control system is constituted so that a passing detecting sensor 8 detects the passing of a person of a doorway arranged in a position deviated in the entering/leaving direction of a communication range of an antenna 9 in the doorway of the specific area 5, and an access control means discriminates the entering/leaving to the specific area 5 based of the operation state of a passing detecting signal of the passing detecting sensor 8 and the reading state of an RFID reading means 12, and collates read tag data with registered tag data stored in a registered tag data storage means when there is the reading of the RFID reading means 12, and controls the entering/leaving of the user P by discriminating whether or not the entering/leaving is that of a specific user P. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an entry / exit management system that manages entry / exit into a specific area in which only a specific user is permitted to enter / exit from an entry / exit.

  An example disclosed in Patent Document 1 is an example of this type of entrance / exit management system that uses an RFID (Radio Frequency IDentification) tag.

JP 2006-027756 A

What is described in the patent document 1 is a take-out return management system that manages taking-out of a management object from a storage area and returning it to the storage area.
In the take-out / return management system, personal identification information is written and a user has a non-contact IC tag (corresponding to an RFID tag for personal identification) that can read the identification information in a non-contact state. This is a method of entering and exiting the storage area.

In order to discriminate the user's entry into and exit from the storage area, two reading means (antennas) for reading the tag data of the contact IC tag are provided at the entrance / exit in line with the entry / exit direction.
That is, when a user wears a contactless IC tag for personal recognition and passes through the entrance / exit, the user enters or exits the storage area depending on the reading order of the tag data of the reading means arranged in the entry / exit direction. It is determined whether to leave.

  Thus, it is possible to determine the entry / exit of a user having a non-contact IC tag and to identify the user, but it is not possible to detect entry / exit to a storage area of a person who does not have a non-contact IC tag, You will be allowed to enter the storage area.

  Further, since reading is unstable near the limit of the communicable range where the reading means (antenna) can read the tag data of the non-contact IC tag, two reading means (antennas) arranged side by side at the entrance / exit are mutually connected. If they are close, the order of reading becomes ambiguous and there is a risk of erroneous recognition.

  For this reason, two reading means (antennas) arranged side by side at the entrance / exit must be arranged at a considerable distance from each other so as not to be mistakenly recognized, and space for that is required, and it is difficult to arrange depending on the use situation. There is a case.

  The arrangement of two reading means (antennas) requires two separate means for decoding the read data, which increases the number of parts and increases the cost.

  The present invention has been made in view of the above points, and its intended process is to prevent entry of a person who does not have an RFID tag or a person who has not been registered in advance with a minimum necessary configuration, and to a specific area. It is the point which provides the entrance / exit management system which can discriminate | determine accurately the entrance and exit of the user and can manage entrance / exit reliably.

  In order to achieve the above object, the invention described in claim 1 is an entry / exit management system for managing entry / exit into a specific area where only a specific registered user is permitted to enter / exit from an entry / exit. RFID tag for personal recognition that the user wears and enters, registered tag data storage means for registering and storing tag data of the RFID tag for personal recognition of a specific user, and a fixed area provided at the entrance and exit of a specific area RFID reading means for reading the tag data of the RFID tag for personal recognition with an antenna in the communication range, and detecting the passage of a person at the entrance / exit at a position deviated in the entrance / exit direction of the communication range of the antenna at the entrance / exit of the specific area A registration tag data stored in the registration tag data storage means based on a passage detection sensor, a passage detection signal of the passage detection sensor, and a reading signal of the RFID reading means; And an entry / exit management means for managing entry / exit by collating with the data, and the entry / exit management means enters the specific area based on the operating state of the passage detection signal of the passage detection sensor and the reading state of the RFID reading means. Whether or not the RFID tag is read out, and whether the read tag data is compared with the registered tag data stored in the registered tag data storage means or not is a specific user entry / exit. It is characterized by having an entry / exit management system that manages the entry / exit of users by discriminating.

  According to a second aspect of the present invention, in the entry / exit management system according to the first aspect, the entry / exit management means starts reading the RFID reading means in response to an input of a passage detection signal of the passage detection sensor, and the reading becomes impossible. It is characterized by discriminating entry into and exit from a specific area by measuring the time until.

  According to a third aspect of the present invention, in the entry / exit management system according to the first aspect, the entry / exit management means starts reading the RFID reading means in response to the input of the passage detection signal of the passage detection sensor, When the input is completed, reading of the RFID reading unit is stopped once, and then the reading of the RFID reading unit is resumed after a predetermined time, and entry into and exit from a specific area is determined by the presence or absence of reading.

  According to a fourth aspect of the present invention, in the entry / exit management system according to the first aspect, the entry / exit management means monitors the change in the radio field intensity when the RFID reader means reads, and thereby the radio field intensity and the passage Based on the operating state of the passage detection signal of the detection sensor, the entry and exit to a specific area are determined.

  According to a fifth aspect of the present invention, in the entry / exit management system according to any one of the first to fourth aspects, the plurality of unit shelves are movably arranged by being guided by rails that are perpendicular to the shelf front surface. The adjacent entrances are in contact with each other at the time of convergence, and the working path in the moving shelf that selectively opens the working path by moving a desired unit shelf to selectively open the working path is the specific area. The entrance and exit of each unit shelf serving as the entrance and exit of the working passage is used as the entrance and exit of the specific area, and the antenna and the passage detection sensor are provided at the entrance and exit of each unit shelf. .

  According to a sixth aspect of the present invention, in the entry / exit management system according to the fifth aspect, an operation switch provided on the front surface of each unit shelf, an operation signal of the operation switch, a read signal of the RFID reading means, and the passage detection Moving shelf drive control means for moving a unit shelf based on a sensor passage detection signal to control opening and closing of a required work path is provided, and the moving shelf drive control means is configured to detect the RFID by an operation signal of an operation switch. Control is performed such that reading by the reading means is performed for a certain period of time, and the unit shelf is moved to open the required work passage only when the read tag data matches the registered tag data stored in the registered tag data storage means. It is characterized by doing.

  A seventh aspect of the present invention is the entrance / exit management system according to the sixth aspect, wherein the moving shelf drive control means is configured to allow a user to pass through at first when the unit shelf is moved to form a required working passage. And when it is recognized that the user has entered the work passage, control is performed to widen the passage to a required width.

  In the invention according to claim 8, a plurality of unit shelves are guided and movably arranged by rails perpendicular to the shelf front surface, the adjacent front doors are in contact with each other at the time of convergence, and a desired unit shelf is moved to be arbitrarily In the entrance / exit management system for managing the entry / exit of users to / from the specific area, the work path in the moving shelf that selectively forms a work path by opening between adjacent unit shelves An RFID tag for personal recognition that a user wears in and out, a registered tag data storage means for registering and storing tag data of an RFID tag for personal recognition of a specific user, and a moving mechanism as the unit shelf moves An antenna that moves above the unit shelf, and is located outside the specific area when the unit shelf is closed, and is used for the personal recognition by the antenna located within the specific area when the unit shelf is open. RF An RFID reading means for reading tag data of a D tag, and a unit shelf can be moved only when the read signal of the RFID reading means matches the registered tag data stored in the registered tag data storage means so that the unit shelf can be moved. Moving shelf control means for permitting opening and closing of the passage, and an intruder detection sensor for detecting an intruder in the specific area provided at least one position at the entrance / exit of the specific area in the communication range of the antenna And an entry / exit management means for managing entry / exit based on an intruder detection signal of the intruder detection sensor, a read signal of the RFID reading means, and registration tag data stored in the registration tag data storage means, The management means determines entry into and exit from the specific area based on the intruder detection signal of the intruder detection sensor and the reading status of the RFID reading means, When there is a reading by the FID reading means, the read tag data is compared with the registered tag data stored in the registered tag data storage means to determine whether or not the specific user has entered or exited. It is an entry / exit management system that manages entry / exit of a person.

  According to a ninth aspect of the present invention, in the entry / exit management system according to any one of the first to eighth aspects, the specific area is an article storage area, and an article identification RFID is attached to the article to be stored. A tag is attached, and when the article passes through an entrance / exit of a specific area together with a specific user, tag data of the RFID tag for identifying the article is read by the RFID reading means.

  According to the entrance / exit management system according to claim 1, the specific area is determined based on the operation state of the passage detection signal of the passage detection sensor provided at a position deviated in the entrance / exit direction of the communication range of the antenna and the reading state of the RFID reading means. The entry / exit of the user is checked and the read tag data is compared with the registered tag data stored in the registered tag data storage means to determine whether the user is entering / exiting the user. The person who does not have the RFID tag for personal recognition and the personal recognition that has not been registered in the registered tag data storage means in advance with the minimum necessary configuration in which the antenna and the passage detection sensor are arranged in a narrow space without greatly separating them. In addition to being able to detect the entry of people with RFID tags for use, and accurately managing entry and exit by accurately recognizing the entry and exit of users to specific areas It can be.

  According to the entrance / exit management system according to claim 2, the reading of the RFID reader is started by the input of the passage detection signal of the passage detection sensor, and the entry and exit from the specific area are measured by measuring the time until the reading is impossible. Therefore, it is possible to accurately recognize the user's entry and exit from the specific area with the minimum necessary configuration.

  According to the entrance / exit management system according to claim 3, reading of the RFID reading unit is started by input of a passage detection signal of a passage detection sensor, and reading of the RFID reading unit is once stopped by input of the passage detection signal, Thereafter, reading of the RFID reading means is resumed after a predetermined time, and the entry and exit of the specific area are determined based on the presence or absence of reading, so the user can accurately enter and exit the specific area with the minimum necessary configuration. Can be recognized.

  According to the entrance / exit management system according to claim 4, by monitoring a change in the radio wave intensity at the time of reading by the RFID reading means, an input of the passage detection signal of the passage detection sensor is performed while the radio wave intensity is increasing at the time of entry. Yes, there is no pass detection signal input while the signal strength is attenuated, and when exiting, there is no pass detection signal input while the signal strength is increasing, and there is a pass detection signal input while the signal strength is decreasing. Therefore, it is possible to accurately determine the user's entry and exit from the specific area based on the radio wave intensity and the operation state of the passage detection signal of the passage detection sensor.

  According to the entrance / exit management system according to claim 5, the plurality of unit shelves are guided by the rail perpendicular to the shelf front surface and are movably arranged, and the adjacent front doors are in contact with each other at the time of focusing, and the required unit shelves are arranged. The working path in the moving shelf that moves and opens any adjacent unit shelves to selectively form a working path is defined as the specific area, and each unit shelf that becomes an entrance / exit of the working path enters and exits. Since the exit portion can be used as the entrance / exit of the specific area and the antenna and the passage detection sensor can be arranged in a narrow space without greatly separating them, the antenna and the passage detection sensor can be provided at the entrance / exit portion of each unit shelf. The entry / exit management system can be easily applied to the moving shelf by using the work path formed in the moving shelf as a specific area, and a person who does not have an RFID tag for personal recognition in advance and has a minimum configuration. It is possible to detect the entry of a person having an RFID tag for personal recognition that is not registered in the recording tag data storage means, and accurately recognize the entry and exit of the user from the work passage and manage entry and exit. be able to.

According to the entrance / exit management system according to claim 6, the moving shelf drive control means performs reading by the RFID reading means for a predetermined time by the operation signal of the operation switch, and stores the read tag data in the registered tag data storage means. The unit shelf is moved and the required work passage is opened only when it matches with the registered tag data to be registered, so the work passage is opened by a person other than the specific user with the minimum necessary configuration. Can be prevented.
Since the personal authentication when forming the work passage and the personal authentication after forming the work passage are both performed by reading the tag data of the RFID tag for personal recognition using a common antenna, the number of parts is reduced and the cost is reduced. Can be reduced.

  According to the entrance / exit management system according to claim 7, when the required work path is formed by moving the unit shelf, it is first opened to the width of the path through which one user can pass, and the user enters the work path. When it is recognized, control is performed to widen to the required passage width, so that at the beginning of the work passage, it is opened to the passage width that one user can pass to prevent multiple people from entering at the same time. Thus, it is possible to avoid erroneous recognition, and when it is recognized that the vehicle has entered the work passage, the width of the passage is expanded to a required width, so that the work can be facilitated.

According to the entrance / exit management system according to claim 8, the antenna of the RFID reading means for reading the tag data of the RFID tag for personal recognition moves above the unit shelf by the moving mechanism as the unit shelf moves, When the space between the unit shelves is closed, it is located outside the specific area, and when the space between the unit shelves is open, it is located within the specific area. Since the antenna can be positioned at the optimum position for reading the RFID tag for personal recognition that the user wears and enters, and it is possible to reliably prevent malfunction, a work passage is formed by a person other than the specific user Therefore, it is possible to accurately recognize the user's entry and exit from the work passage by judging the signal from the intruder detection sensor together.
Moreover, since it can be configured with one antenna for each work passage, the number of parts can be reduced to reduce the cost, and the antenna is provided above the unit shelf. There are few restrictions and it can provide in an optimal position, and work efficiency improves.

  According to the entrance / exit management system according to claim 9, since the RFID tag for identifying the article attached to the article is read by the RFID reading means provided at the entrance / exit of the specific area, the return of the article to the storage area and the storage area It is possible to accurately recognize the removal of the article and to execute the entry / exit management of the article with certainty.

Hereinafter, an embodiment according to the present invention will be described with reference to FIGS.
The entry / exit management system according to the present embodiment is applied to the movable shelf 1, and the movable shelf 1 is an electric movable shelf, and each drive shelf can be moved by driving the motor 10.

FIG. 1 is an overall perspective view of the movable shelf 1, and FIG. 2 is a front view thereof.
When viewed from the front of the movable shelf 1, the first shelf A1, the second shelf A2, the third shelf A3, the fourth shelf A4, the fifth shelf A5, the sixth shelf A6 are arranged in order from the left to the right. The first shelf A1 is a fixed shelf, and the unit shelves A2, A3, A4, A5, A6 excluding the first shelf A1 are drive shelves, and are on the rail 2 laid in the left-right direction. The vehicle is disposed so as to be able to travel through the wheels 3.

The first shelf A1, which is a fixed shelf, is a single shelf that has a front face only on the right side, and the back surface on the opposite side (left side) of the front face is closed by a back plate.
The No. 6 shelf A6, which is the rightmost drive shelf, is a single shelf whose frontage surface is only on the left side, and the back surface on the opposite side (right side) of the frontage surface is closed by the back plate 4b.
The unit shelves A2, A3, A4, and A5, which are drive shelves between the No. 1 shelf A1 and the No. 6 shelf A6, are duplex shelves having front and rear surfaces respectively.

  Therefore, the unit shelves A2, A3, A4, A5, and A6, which are drive shelves, can be self-propelled by mounting the motor 10, respectively, and the five unit shelves A2, A3, A4, A5, and A6 are all When focused on the unit shelf A1 side, which is the leftmost fixed shelf, the articles placed in contact with the adjacent entrances are completely closed and stored safely.

It is possible to selectively form a working path by moving a required unit shelf and opening between adjacent unit shelves.
For example, in the state shown in FIG. 1 and FIG. 2, the No. 5 shelf A5 and the No. 6 shelf A6 are simultaneously moved rightward from the all-shelf convergence state, and the space between the No. 4 shelf A4 and the No. 5 shelf A5 is opened. A work passage 5 is formed between the right front surface of the No. 4 shelf A4 and the left front surface of the No. 5 shelf A5.

The back side opposite to the front of the unit shelves A1, A2, A3, A4, A5, A6 is along the wall, so that the work passage 5 can be entered and exited only from the front side.
In addition, it is possible to allow entry / exit on both the front side and the back side of the work passage, and both may have the same configuration.

  The front side plate 4a of each of the unit shelves A1, A2, A3, A4, A5, A6 is provided with a control unit 6 including a control board at the upper and lower central positions, and unit shelves A1, A2, excluding the No. 6 shelf A6 An operation button 7 for instructing passage formation is disposed on the right side of the upper end surface of the control unit 6 of A3, A4, and A5.

And the optical sensor 8 by infrared rays is opposed to each other on the same end face as the front face plate 4a of each of the unit shelves A1, A2, A3, A4, A5, A6, and is provided at a predetermined height. It has been.
A plurality of pairs of optical sensors may be provided by shifting in the vertical direction.
Thus, by arranging a plurality of optical sensors in the vertical direction at the entrance / exit, unauthorized entry can be reliably prevented.

One of the paired optical sensors 8 and 8 is a projector, and the other is a light receiver. When a person passes between them, the infrared light incident on the light receiver from the projector is temporarily blocked and does not reach the light receiver. It is possible to detect that a person has passed.
Note that a diffuse reflection type optical sensor using a mirror may be used.

An RFID reading antenna 9 is disposed on the shelf 10 at the middle of the front side of the front panel having the optical sensors 8 of the unit shelves A1, A2, A3, A4, A5, and A6.
The antenna 9 is attached to the front end side of the front-side end face of the middle shelf 10 and is located farther away from the optical sensor 8.
The communication range of the antenna 9 is limited, and the hatched area in FIGS. 3 and 4 is a range in which communication is possible.

The user P wearing the personal identification RFID tag Tp enters the work passage 5 from the front entrance / exit, and exits the work passage 5 through the same entrance / exit.
An article identification RFID tag Tq is attached to an article Q that the user P returns to or takes out from the main moving shelf 1.

The state of the movable shelf 1 shown in FIG. 1 and FIG. 2, that is, the plan view of the main part of the movable shelf 1 in the state in which the work passage 5 is formed by opening between the fourth shelf A4 and the fifth shelf A5 3 shows.
Infrared light runs between the opposing optical sensors 8 and 8 provided on the front side plates 4a and 4a of the No. 4 shelf A4 and No. 5 shelf A5, and detects the passage of people at the entrance and exit of the work passage 5 Yes.

  The antennas 9 and 9 are located in the back of the optical sensors 8 and 8 so that the communication ranges (generally hatched areas) of both the antennas 9 and 9 are near the entrance and exit of the work passage 5 and the vicinity thereof. It occupies almost the whole.

  The communicable range of the antenna 9 is equidistant from the front side and the back side of the work passage 5 with the antenna 9 as the center. Therefore, when viewed from the optical sensor 8 in front of the antenna 9, the communication range is short to the front side and Will have a long distance.

As described above, the optical sensor 8 is disposed at a position biased to the near side in the entering / exiting direction of the communicable range of the antenna 9, and the optical sensor 8 and the antenna 9 do not need to be separated greatly and can be disposed in a narrow space.
Therefore, it is suitable for a moving shelf in which it is difficult to place the optical sensor 8 and the antenna 9 apart from each other.

  When the user P wearing the personal identification RFID tag Tp passes through the entrance / exit where the optical sensor 8 and the antenna 9 are arranged as described above, the optical sensors 8 and 8 detect the passage of the user P. After that, if the time for the antenna 9 to read the tag data of the RFID tag Tp for personal recognition is long, it is determined that the entry to the work passage 5 is made, and that the exit from the work passage 5 is made short. it can.

FIG. 5 is a timing chart of the signal of the optical sensor 8, the state of the antenna 9, and the reading state of the RFID.
When the optical sensor 8 is activated, the antenna 9 is kept in an operating state for a certain period of time, and the longer RFID reading time is when entering the working path 5 and the shorter is when exiting.
By monitoring the RFID readable time, it is possible to accurately determine whether the user P has entered or exited.

  FIG. 6 is a modified example in which the operating time of the antenna 9 is changed. After the antenna 9 is activated by the activation signal of the optical sensor 8 and is deactivated by the OFF signal of the optical sensor 8, this inoperative state is changed. When a predetermined time has elapsed from when the antenna 9 is set, the antenna 9 is again set in an operating state for a predetermined time.

  The second operation of the antenna 9 is performed in a time zone in which the antenna P is still within the communicable range of the antenna 9 when the user P enters, but is out of the communicable range of the antenna 9 when the user P leaves. .

Therefore, if the RFID reading state can be read when the antenna 9 is operated for the second time, it is the time of entering the work passage 5, and if there is no reading, it is the time of leaving.
Thus, whether the user P has entered or exited can be accurately determined based on whether or not the RFID 9 is read when the antenna 9 is activated for the second time.

  The user can also determine the radio wave intensity and the operating state of the optical sensor 8 by operating the antenna 9 and monitoring the change of the radio wave intensity when reading the tag data of the RFID tag Tp for personal recognition. It is possible to accurately determine whether P has entered or exited.

  That is, if the antenna 9 is operated and the radio wave intensity at the time of reading the tag data of the RFID tag Tp for personal recognition and the operating state of the optical sensor 8 are determined, the optical sensor 8 operates while the radio wave intensity is increasing at the time of entry. The optical sensor 8 is in an off state while the radio wave intensity is attenuated, and when leaving, the optical sensor 8 is not activated while the radio wave intensity is increasing, and the optical sensor 8 is activated while the radio wave intensity is attenuated. Thus, it is possible to accurately determine the user's entry and exit from the work passage 5, respectively.

  Further, referring to FIG. 4, even when No. 4 shelf A4 and No. 5 shelf A5 are in contact with each other and work passage 5 is closed, the communication range of antennas 9 and 9 is No. 4 shelf A4 and No. 5 shelf A5. When the user P tries to open the work passage 5 and approaches the front side plates 4a and 4a to press the operation button 7, the user P is connected to the antennas 9 and 9a. It is possible to read the tag data of the RFID tag Tp for personal recognition worn by the antennas 9 and 9.

  The tag data of the RFID tag Tp for personal recognition received by the antenna 9 is read out by a computer and used for entry / exit management. In the following, including this entry / exit management and drive control of the movement shelf, the movement shelf 1 The control system will be described.

  Referring to FIG. 7 which is a schematic block diagram of the control system of the entry / exit management system, a main control panel 11 and a sub-control panel 12 composed of a microcomputer are accommodated in the control unit 6 of the first shelf A1 which is a fixed shelf. In addition, the sub control panel 12 inputs and processes the detection signals of the operation buttons 7 and the optical sensor 8 and performs transmission / reception by the antenna 9 to read the tag data of the RFID tag.

  Each of the control units 6 of the unit shelves A2, A3, A4, A5, and A6 that are drive shelves accommodates a sub-control panel 12 that is a computer. When the sub-control panel 12 controls the drive of the motor 10, At the same time, detection signals from the operation button 7 and the optical sensor 8 are input and processed, and transmission / reception by the antenna 9 is performed to read tag data of the RFID tag.

  The main control panel 11 of the first shelf A1 centrally controls the driving of the unit shelves A2, A3, A4, A5, A6, and manages the entry and exit of users and articles, and the entry / exit management storage means for that purpose. It has 11M.

This entry / exit management storage means 11M stores pre-registered tag data of the RFID tag Tp for personal recognition of the user P who is permitted to enter and exit by opening the work path 5 of the movable shelf 1.
Further, the entry / exit management storage means 11M also stores tag data of the RFID tags Tq for identifying articles of all articles Q stored in the movable shelf 1.

Furthermore, the entry / exit management storage means 11M temporarily stores the tag data of the RFID tag Tp for personal recognition of the user P that has entered the work passage 5 as entry tag data.
This entry / exit management storage means 11M can also be provided in a management computer provided separately from the moving shelf device.

Hereinafter, the control procedure of this entrance / exit management control will be described with reference to the flowchart of FIG.
Initially, all unit shelves A1, A2, A3, A4, A5, and A6 start from a converged state.
First, in step 1, it is determined whether or not the operation button 7 is pressed and the operation switch is turned on.
When the operation switch is off, the process returns to step 1.

  For example, as shown in FIG. 4, the user P tries to open the work passage 5 between the No. 4 shelf A4 and the No. 5 shelf A5, approaches the front side plates 4a and 4a, and the control unit 6 of the No. 4 shelf A4. When the operation button 7 provided on the user is pressed, the process proceeds from step 1 to step 2 where the antennas 9 and 9 are operated to read the tag data of the RFID tag Tp for personal recognition worn by the user P. .

Then, the read tag data is collated with registered tag data registered in advance in step 3.
If the read tag data matches the registered tag data, the process proceeds to step 5 to move between the No. 5 shelf A5 and the No. 6 shelf A6 and to open between the No. 4 shelf A4 and the No. 5 shelf A5. Form.

If the read tag data does not match the registered tag data, or if the tag data of the RFID tag Tp for personal recognition cannot be read and cannot be compared with the registered tag data, the process proceeds to step 4 and an error message is issued together with an alarm. Return to step 1.
Therefore, only the user P who has the RFID tag Tp for personal recognition that matches the registered tag data can form the work path 5 by pressing the operation button 7.

When the work passage 5 is formed, in step 6, the number N of users P entering the work passage 5 is set to 0, and the process proceeds to step 10.
In step 10, it is determined whether or not the optical sensor 8 is activated, that is, whether or not a person has passed through the entrance / exit of the work passage 5. If not, the process proceeds to step 11 where the number of people entering N = If it is determined that the number of entering people is N ≠ 0, it is determined that there is a user P in the work passage 5, and the process returns to step 10 to wait for the optical sensor 8 to operate.

When it is determined in step 11 that the number of people entering N = 0, the process proceeds to step 12, and it is determined whether or not the time is up after a predetermined time.
When the time is up with the number N of people entering, the process jumps to step 14 to automatically close the work passage 5 and return to step 1.

  Before the time is up, the process proceeds to step 13 to determine whether or not the operation button 7 is pressed again and the operation switch is turned on. While the operation switch is in the off state, the process returns to step 10 and the operation switch is turned on. If it is turned on, it is possible to proceed to step 14 and close the work passage 5 before time-up, and then return to step 1.

When the light (passage detection) sensor 8 is actuated in step 10, the process proceeds to step 15 to start reading the tag data of the RFID tag Tp for personal recognition.
At this time, when the user P has the article Q, the tag data of the RFID tag Tq for article identification of the article Q is also read.

In the next step 16, the read tag data of the RFID tag Tp for personal recognition is collated with registered tag data registered in advance.
When the read tag data does not match the registered tag data, or when the tag data of the RFID tag Tp for personal recognition cannot be read and cannot be compared with the registered tag data, the process proceeds to step 17, and an error message is issued together with an alarm. Return to Step 10.
Accordingly, if there is a person who does not have the RFID tag Tp for personal recognition, an alarm is issued here.

If the read tag data coincides with the registered tag data, the process proceeds to step 18 to determine whether the entry into the work passage 5 or the exit from the work passage 5.
Here, the entry / exit is accurately discriminated by the aforementioned entry / exit discrimination method (the entry / exit discrimination method shown in the timing chart of FIG. 5 or FIG. 6).

If it is determined in step 18 that the vehicle has entered the work passage 5, the process proceeds to step 19, where the read tag data of the RFID tag Tp for personal recognition is written as the entry tag data and is left in the entry record.
In the next step 20, the number N of people entering is incremented (added by 1), and the process proceeds to the next step 21.

The tag data of the article taken out from the movable shelf 1 is written as the tag data and the article removal record is left. In step 21, if the user P who has entered has the article Q, the article Q is returned. Judgment is performed, the written out tag data is erased, and the process returns to step 10.
However, return of goods will be recorded.

If it is determined in step 18 that the user has left the work passage 5, the process jumps to step 22 to delete the entry tag data (however, the exit record remains), and the next step 23 decrements the number N of people entering (subtract 1). ) And proceed to the next step 24.
If the exiting user P has the article Q, it is determined that the article Q has been taken out, written as take-out tag data (the take-out of the article is recorded), and the process returns to step 10.

  Even when a plurality of users P pass through the entrance / exit when the work passage 5 is formed, it is possible to accurately determine each entry and exit, and to manage entry / exit reliably. It is confirmed that there is no person in the passage 5 with the number N of people entering, and the work passage 5 is closed, so that safety is high.

  In addition, when the work passage 5 is initially opened, it has a narrow passage width that allows only one user P to pass, and when it is recognized that the user P has entered the work passage 5, the work passage 5 reaches the required passage width. In the beginning when the work passage 5 is formed, it is opened up to the width of the passage through which one user can pass to prevent multiple people from entering at the same time to avoid misrecognition. When it is recognized that the vehicle has entered the work passage, it is widened to the required passage width, so that the work can be facilitated.

  After the work passage 5 is expanded to the normal passage width, a plurality of people can pass at the same time, and unauthorized entry may occur. However, since there is a regular user P in the work passage 5, And the security effect is improved.

  Further, depending on the user having the RFID tag Tp for personal recognition that does not match the registered tag data or the person not having the RFID tag Tp for personal recognition, the work passage 5 is not formed even if the operation button 7 is pressed. The entry into the working path 5 can also be detected and prohibited by an alarm.

The minimum necessary configuration based on the signal of the optical sensor 8 and the state of the antenna 9 prevents entry of a person who does not have an RFID tag or a person who has not been registered in advance, and accurately determines whether the user P has entered or exited. Can be managed reliably.
Since the personal authentication when forming the work passage 5 and the personal authentication after forming the work passage are both performed by reading the tag data of the RFID tag Tp for personal recognition by the common antenna 9, the number of parts is reduced. Thus, the cost can be reduced.

  The tag data of the RFID tag Tq for identifying an article attached to the article Q is read at the entrance / exit of the work passage 5, written as take-out tag data when entering, and the take-out tag data is erased when leaving, so that the article from the moving shelf 1 By accurately recognizing the removal of the Q and the return to the movable shelf 1 and recording the removal and the return, the entry / exit management of the article Q can be reliably executed.

As another embodiment, it is recognized that there is no user P in the work passage 5, and when a certain time has elapsed, the work passage 5 is not completely closed, but a passage width that allows one user to pass. You may control so that it may narrow.
This is convenient when the use frequency of the same work path 5 is high.
Further, even when it is mistakenly recognized that there is no user P in the work passage 5, the work passage 5 is not completely closed, so that safety is ensured.

In this case, the operation button 7 is pushed in order to completely close the work path 5 and converge the movable shelf 1.
By controlling in this way, when converging the movable shelf 1, since it can confirm reliably that there is no user P in the work path | route 5, safety improves.

Next, another embodiment will be described with reference to FIGS.
The entry / exit management system according to the present embodiment is applied to the movable shelf 51. The movable shelf 51 is a manual movable shelf, and the operator manually moves the unit shelf to open and close the work passage. is there.

FIG. 9 is an overall perspective view of the movable shelf 51.
The movable shelf 51 has substantially the same structure as the movable shelf 1 according to the above-described embodiment except that it is a manual type.
When viewed from the front of the moving shelf 51, the first shelf B1, the second shelf B2, the third shelf B3, the fourth shelf B4, the fifth shelf B5, the sixth shelf B6 are arranged in order from the left to the right. The first shelf B1 is a fixed shelf, and the unit shelves B2, B3, B4, B5, and B6 except the first shelf B1 are traveling shelves, and are on rails 52 that are laid in the left-right direction. It is arrange | positioned so that driving | running | working is possible via a wheel.

  The unit shelves B2, B3, B4, B5, and B6, which are traveling shelves, are not equipped with motors and are moved manually by an operator, and are all fixed shelves at the left end. When focused on a certain unit shelf B1 side, the articles housed in the movable shelf 51 that are in contact with adjacent frontage are completely closed and stored safely.

The working path 55 can be selectively formed by moving a desired unit shelf and opening between any adjacent unit shelves.
For example, in the state shown in FIG. 9, the No. 5 shelf B5 and the No. 6 shelf B6 are simultaneously moved rightward from the all-shelf convergence state, and the No. 4 shelf is opened between the No. 4 shelf B4 and the No. 5 shelf B5. A work passage 55 is formed between the right front surface of B4 and the left front surface of No. 5 shelf B5.

The back side opposite to the front of the unit shelves B1, B2, B3, B4, B5, B6 is along the wall, so that the work passage 55 can be entered and exited only from the front side.
In addition, it is possible to allow entry / exit on both the front side and the back side of the work passage, and both may have the same configuration.

The unit shelves B2, B3, B4, B5, and B6, which are traveling shelves, are provided with a lock mechanism 64 that couples the adjacent unit shelves in contact with each other, and a limit switch that detects the closed state. A close detection switch 65 is provided (see FIG. 12).
On each front side plate 54a of the traveling shelf, a handle 56 bent in a U-shape is vertically attached at the vertical center position, and a lock release switch 66 as a button switch is disposed on the left side of the handle 56. .

An optical sensor 67 using infrared rays, which is an intruder detection sensor, is opposed to each other on the same end face as the front face plate 54a of each unit shelf B1, B2, B3, B4, B5, B6. Is provided.
A plurality of pairs of optical sensors may be provided by shifting in the vertical direction.
Thus, by arranging a plurality of optical sensors in the vertical direction at the entrance / exit, unauthorized entry can be reliably prevented.

One of the paired optical sensors 67 and 67 is a projector, and the other is a receiver. When a person enters between them, the infrared light incident on the receiver from the projector is temporarily blocked and does not reach the receiver. It is possible to detect that a person has entered.
Note that a diffuse reflection type optical sensor using a mirror may be used.

Each top plate 54c of each of the unit shelves B1, B2, B3, B4, B5, and B6 is provided with a pivot shaft 71 standing near the front, and a swing arm whose base end is pivotally supported by the pivot shaft 71. 72 is provided so as to be swingable horizontally along the top plate 54c.
One pivot arm 71 is pivotally supported on the pivot shaft 71 erected on the top plate 54c of the No. 1 shelf B1 and the No. 6 shelf B6 at the left and right ends, but the other unit shelves B2, B3 Two swing arms 72 and 72 are coaxially supported on the pivot shaft 71 erected on the top plate 54c of B4 and B5.

Then, the tips of the adjacent swing arms 72, 72 are pivotally supported by and connected to the pivot shaft 73 to constitute a link mechanism 70 as a moving mechanism.
Since all the swing arms 72 have the same length, the pivot shaft 73 connecting the adjacent swing arms 72 and 72 is always located at an equidistant position from the unit shelves on both sides.

  In the link mechanism 70, when the adjacent unit shelves are in contact with each other and closed, the pivot shafts 71 and 71 approach each other, and the adjacent swing arms 72 and 72 extend obliquely forward to form an acute-angled character. The pivot shaft 73 is located in front of the front side plate 54a, and conversely, when the unit shelves are opened apart from each other, the pivot shafts 71 and 71 are separated and the adjacent swing arms 72 and 72 are obtuse. The pivot shaft 73 is set so as to be positioned in the working passage 55 formed between the unit shelves.

An RFID reading antenna 68 is attached to the lower end of the pivot shaft 73.
The antenna 68 moves horizontally at the same height as or slightly higher than the top shelf 54c of the unit shelf.
Even when the antenna 68 is at the same height as the top plate 54c, the antenna 68 always exists at an equidistant position from the unit shelves on both sides of the antenna 68 and moves so as to enter the work passage 55 to be formed. There will be no interference.

The principal part top view of the movement shelf 51 of the state which opened between the No. 4 shelf B4 and the No. 5 shelf B5 and the work channel | path 5 was formed is shown in FIG.
Infrared light runs between the opposing optical sensors 67, 67 provided on the front side plates 4a, 4a of the No. 4 shelf A4 and No. 5 shelf A5, and detects the entry of people at the entrance / exit of the work passage 55. Yes.

  The antenna 68 that has entered the work passage 55, which is a specific area, is located behind the optical sensors 67, 67, and the communication range (generally hatched area) of the antenna 68 is the entrance / exit of the work passage 55. Occupies an area that is almost closed.

  Thus, when the user P wearing the personal identification RFID tag Tp enters the entrance / exit where the optical sensor 67 and the antenna 68 are arranged, the optical sensors 67 and 67 detect the entry of the user P. Thereafter, if the time for which the antenna 68 can read the tag data of the RFID tag Tp for personal recognition is long, it can be determined that the entry into the work path 5 is short, and the exit from the work path 5 is short. .

  In addition, after the antenna 68 is activated by the activation signal of the optical sensor 67 and is deactivated by the off signal of the optical sensor 67, the antenna 68 is again set for a certain period of time after a predetermined time has elapsed since the activation. If the RFID reading state can be read when the antenna 68 is activated for the second time, it can be determined that it is when entering the work passage 55, and if there is no reading, it is determined that it is when leaving. it can.

  Further, as described above, by operating the antenna 68 and monitoring the change of the radio wave intensity when reading the tag data of the RFID tag Tp for personal recognition, the radio wave intensity and the operating state of the optical sensor 67 are determined. However, it is possible to accurately determine whether the user P has entered or exited.

Next, referring to FIG. 11, when the work shelf 55 is closed with the No. 4 shelf B4 and the No. 5 shelf B5 in contact, the antenna 68 that is equidistant from the No. 4 shelf B4 and the No. 5 shelf B5 is The communicable range (generally hatched area) of the antenna 68 located outside the specific area in front of the front side plate 54a is a circular area that is substantially in contact with the optical sensors 67 and 67.
In FIG. 10, the other antennas 68 are also in the same position, and their communicable ranges are similar circular areas.

  When the user P approaches the front side plates 54a, 54a to open the space between the No. 4 shelf B4 and the No. 5 shelf B5 to form the work passage 55 and press the lock release switch 66, as shown in FIG. The user P enters the communicable range of the antenna 68, and can read the tag data of the RFID tag Tp for personal recognition worn by the antenna 68.

  The tag data of the RFID tag Tp for personal recognition received by the antenna 68 is read by a computer and used for entry / exit management. The control system of the moving shelf 51 will be described below including this entry / exit management. .

  Referring to FIG. 12, which is a schematic block diagram of the control system of the entry / exit management system, the first shelf B1, which is a fixed shelf, is equipped with a main control panel 61 and a sub control panel 62 which are composed of microcomputers. The control panel 62 inputs and processes the detection signal of the optical sensor 67.

  The unit shelves B2, B3, B4, B5, and B6, which are traveling shelves, are each equipped with a sub-control panel 62 that is a computer. The sub-control panel 62 controls the lock mechanism 64 and closes it. An on / off signal of the detection switch 65 and the lock release switch 66 is input, a detection signal of the optical sensor 67 is further input and processed, and transmission / reception by the antenna 68 is performed to read tag data of the RFID tag.

  The main control panel 61 of the first shelf B1 centrally controls the lock mechanisms 64 of the unit shelves B2, B3, B4, B5, and B6, and manages the entry and exit of users and articles, and therefore the entry and exit management memory. Means 61M are provided.

The entry / exit management storage means 61M stores pre-registered tag data of the RFID tag Tp for personal recognition of the user P who is permitted to enter and exit by opening the work passage 55 of the movable shelf 1.
Further, the entry / exit management storage means 11M also stores tag data of the RFID tags Tq for article identification of all articles Q stored in the movable shelf 51.

Furthermore, the entry / exit management storage means 61M temporarily stores the tag data of the RFID tag Tp for personal recognition of the user P that has entered the work passage 55 as entry tag data.
This entry / exit management storage means 11M can also be provided in a management computer provided separately from the moving shelf device.

Hereinafter, the control procedure of the entry / exit management control will be described with reference to the flowchart of FIG.
Initially, it starts from a state where all the unit shelves B1, B2, B3, B4, B5, and B6 are converged (the adjacent unit shelves are locked by the lock mechanism 64 and connected).
First, in step 51, it is determined whether or not the lock release switch 66 is pressed and turned on.
When the lock release switch 66 is off, the process returns to step 51.

  For example, as shown in FIG. 11, the user P tries to open the work passage 55 between the No. 4 shelf B4 and the No. 5 shelf B5, approaches the front side plates 54a, 54a, and the front side plate 54a of the No. 5 shelf B5. When the lock release switch 66 provided on is pressed, the process proceeds from step 51 to step 52, where the antenna 68 is operated to read the tag data of the RFID tag Tp for personal recognition worn by the user P.

In step 53, the read tag data is collated with registered tag data registered in advance.
If the read tag data matches the registered tag data, the process proceeds to step 55, the lock mechanism 64 mounted on the No. 5 shelf B5 is driven to release the lock and the connection with the No. 4 shelf B4 is released. Can hold the handle 56 of the No. 5 shelf B5 and move the No. 5 shelf B5 and the No. 6 shelf B6 together to open the space between the No. 4 shelf B4 and the No. 5 shelf B5, thereby forming a work passage 55. .

If the read tag data does not match the registered tag data, or if the tag data of the RFID tag Tp for personal recognition cannot be read and cannot be compared with the registered tag data, the process proceeds to step 54 and an error message is issued together with an alarm. Return to step 51.
Accordingly, only the user P having the personal identification RFID tag Tp that matches the registered tag data can push the lock release switch 66 to release the lock and move the traveling shelf to form the work path 55. .

When the work passage 55 is formed by the human power of the user P, the number N of users P entering the work passage 55 is set to 0 in step 56, and the process proceeds to step 60.
In step 60, it is determined whether or not the optical sensor 67 that is an intruder detection sensor is activated, that is, whether or not a person has entered the entrance / exit of the work passage 55. It is determined whether or not the number of entering people N = 0, and if the number of entering people N ≠ 0, it is determined that there is a user P in the work passage 55, and the process returns to step 60 and the optical sensor 67 is activated. wait.

If it is determined in step 61 that the number of people entering N = 0, the process proceeds to step 62, where it is determined whether or not the time is up after a predetermined time.
When the time is up with the number N of people entering, the process jumps to step 67, issues an error message with an alarm, and returns to step 60.
At this time, the timer is reset and the passage of a fixed time is again determined at step 62.

  Until it is determined in step 62 that the time is up, the user P can move the traveling shelf and close the work passage 55. In step 63, it is determined whether or not the closing detection switch 65 is turned on. The process returns to step 60 until it is turned on, and steps 60, 61, 62, and 63 are repeated until the work passage 55 is closed and the close detection switch 65 is turned on.

In the meantime, whenever the time is up, an alarm sounds to warn that the work passage 55 is closed.
When the work passage 55 is closed and the close detection switch 65 is turned on, the process proceeds to step 64, the lock mechanism 64 that has been unlocked is locked, and the process returns to the first step 51.

If the optical sensor 67, which is an intruder detection sensor, is activated while steps 60, 61, 62, and 63 are repeated, the process proceeds from step 60 to step 65 to start reading tag data of the RFID tag Tp for personal recognition. .
At this time, when the user P has the article Q, the tag data of the RFID tag Tq for article identification of the article Q is also read.

In the next step 66, the read tag data of the RFID tag Tp for personal recognition is collated with registered tag data registered in advance.
When the read tag data does not match the registered tag data, or when the tag data of the RFID tag Tp for personal recognition cannot be read and cannot be compared with the registered tag data, the process proceeds to step 67 and an error message is issued together with an alarm. Return to step 60.
Accordingly, if there is a person who does not have the RFID tag Tp for personal recognition, an alarm is issued here.

If the read tag data matches the registered tag data, the process proceeds to step 68, where it is determined whether the entry into the work path 55 or the exit from the work path 55.
Here, the entry / exit is accurately determined by the above-described entry / exit discrimination method.

When it is determined in step 68 that the vehicle has entered the work passage 55, the flow proceeds to step 69, where the read tag data of the RFID tag Tp for personal recognition is written as the entry tag data and is left in the entry record.
In the next step 70, the number N of people entering is incremented (added by 1), and the process proceeds to the next step 71.

The tag data of the article taken out from the moving shelf 51 is written as take-out tag data, and an article removal record is left. In step 71, if the user P who has entered has the article Q, the article Q is returned. Judgment is made, the taken out tag data written is erased, and the process returns to step 60.
However, return of goods will be recorded.

If it is determined in step 68 that the user has left the work passage 55, the process jumps to step 72 to delete the entry tag data (however, the exit record remains), and the next step 73 decrements the number N of people entering (subtract 1). ) And proceed to the next step 74.
If the exiting user P has the article Q, it is determined that the article Q has been taken out, is written as take-out tag data (the take-out of the article is recorded), and the process returns to step 60.

Even when a plurality of users P enter from the entrance / exit when the work passage 55 is formed, it is possible to accurately determine the entry and exit of each user and to reliably enter and exit.
In addition, depending on the user who has the RFID tag Tp for personal recognition that does not match the registered tag data or the person who does not have the RFID tag Tp for personal recognition, even if the lock release switch 66 is pressed, the lock is not released and the work passage 55 is not opened. In addition to being formed, entry into the formed work passage 5 can also be detected and prohibited by an alarm.

The minimum required configuration based on the signal of the optical sensor 67 and the state of the antenna 68 prevents the entry of a person who does not have an RFID tag or a person who has not been registered in advance, and accurately determines whether the user P has entered or exited. Can be managed reliably.
The personal authentication when forming the work passage 5 and the personal authentication after forming the work passage are both performed by reading the tag data of the RFID tag Tp for personal recognition by the common antenna 68, so the number of parts is reduced. Thus, the cost can be reduced.

  In particular, in the moving shelf 51, the antenna 68 moves with the movement of the traveling shelf by the simple link mechanism 70, and when the unit shelf is closed, the unit shelf is located outside the specific area and the unit shelf is opened. Is located in the work passage 55, which is a specific area, so that the RFID for personal recognition that a specific user P wears and enters each time the unit shelf is closed and open The antenna 68 can be positioned at the optimum position for reading the tag, and malfunction can be reliably prevented.

Therefore, it is possible to reliably prevent the work passage 55 from being formed by a person other than the specific user P and accurately recognize the user's entry and exit from the work passage 55.
In addition, you may make it the optical sensor which is an intruder detection sensor arrange in multiple numbers over the depth direction on shelf front surfaces, such as a shelf board, and may make it detect an intruder.

In the movable shelf 51 according to the above embodiment, two pivot shafts 71 are provided on the top plate 54c of the unit shelves B2, B3, B4, B5 sandwiched between the left and right unit shelves B1, B6. The swing arms 72 and 72 are pivotally supported coaxially. However, when the shelf width is widened, the pivot shaft cannot be concentrated to one and needs to be divided into two.
Such an embodiment will be described with reference to FIGS. 14 and 15. FIG.

The movable shelf 81 according to the present embodiment has the same structure as the movable shelf 51, but each of the unit shelves C1, C2, C3, C4, C5, C6 (FIG. 14 and FIG. The shelf width of C4, C5 and C6 is large).
One pivot shaft 91 is erected on the top plate 84b of the unit shelves C1 and C6 at both ends, and one swing arm 92 is pivotally supported, but the other unit shelves C2, C3, C4 are supported. Two pivot shafts 91 and 91 are erected on the top plate of C5 side by side, and one swing arm 92 is pivotally supported.

Then, the tips of the swing arms 92, 92 adjacent to each other are pivotally supported by the pivot shaft 93 to be connected to form a link mechanism 90 that is a moving mechanism.
All the swing arms 92 have the same length.
In FIG. 14 and FIG. 15, the lock release switch 66, the optical sensor 67, and the antenna 68 are denoted by the same reference numerals as in the previous embodiment.

  In the link mechanism 90, when the adjacent unit shelves are in contact with each other and closed, the adjacent swing arms 92, 92 extend obliquely forward to form an acute-angled character, and the pivot shaft 93 (antenna 68) is the front surface. In the state where the unit shelf is located in front of the side plate (see FIG. 15) and the unit shelves are opened apart from each other, the adjacent swing arms 92 and 92 form obtuse squares, and the pivot shaft 93 (antenna 68) is set so as to be positioned in the working passage 85 formed between the unit shelves (see FIG. 14).

Therefore, the movable shelf 81 according to the present embodiment can achieve the same effects as the movable shelf 51.
Thus, when the shelf width of the unit shelf is wide, it can be dealt with by providing two left and right base end pivots of the swing arm 92 on the top plate.

The movable shelves 51 and 81 according to the above embodiment are manual movable shelves, but can naturally be applied to electric movable shelves.
The present invention is not limited to the above-described embodiment, and various embodiments can be considered without departing from the scope of the invention.

It is a whole perspective view of the movement shelf which concerns on one embodiment of this invention. It is a front view of the movement shelf. It is a principal part top view of the movement shelf of the state which opened between 4th shelf A4 and 5th shelf A5, and the channel | path for work was formed. It is a principal part top view of the movement shelf of the state which closed between 4th shelf A4 and 5th shelf A5. It is a timing chart of the signal of an optical sensor, the state of an antenna, and the reading state of RFID. It is another timing chart of the signal of an optical sensor, the state of an antenna, and the reading state of RFID. It is a schematic block diagram of the control system of the entrance / exit management system of this movement shelf. It is a flowchart which shows the control procedure of the same entrance / exit management control. It is a whole perspective view of the movement shelf which concerns on another embodiment. It is a principal part top view of the movement shelf of the state which opened between 4th shelf B4 and 5th shelf B5, and the work channel | path was formed. It is a principal part top view of the movement shelf of the state which closed between 4th shelf B4 and 5th shelf B5. It is a schematic block diagram of the control system of the entrance / exit management system of this movement shelf. It is a flowchart which shows the control procedure of the same entrance / exit management control. Moreover, it is a principal part top view of the movement shelf of the state which opened between the unit shelves C4 and C5 of the movement shelf which concerns on another embodiment, and the work channel | path was formed. It is a principal part top view of the movement shelf of the state which closed between unit shelf C4, C5.

Explanation of symbols

P: User, Tp: RFID tag for personal recognition, Q: Article, Tq: RFID tag for article identification,
A1 ... Unit shelf (fixed shelf), A2, A3, A4, A5, A6 ... Unit shelf (drive shelf),
DESCRIPTION OF SYMBOLS 1 ... Moving shelf, 2 ... Rail, 3 ... Wheel, 4 ... Back plate, 4a ... Front side plate, 4b ... Back plate, 5 ... Work path, 6 ... Control part, 7 ... Operation button, 8 ... Optical sensor, 9 ... antenna, 10 ... motor,
11 ... Main control panel, 11M ... Entry / exit management storage means, 12 ... Sub control panel,
B1 ... Unit shelf (fixed shelf), B2, B3, B4, B5, B6 ... Unit shelf (travel shelf),
51 ... Movement shelf, 52 ... Rail, 54a ... Front side plate, 54c ... Top plate, 55 ... Work passage, 56 ... Handle, 61 ... Main control panel, 61M ... Entry / exit management storage means, 62 ... Sub control panel, 64 ... Lock mechanism, 65 ... Close detection switch, 66 ... Lock release switch, 67 ... Optical sensor, 68 ... Antenna,
70 ... Link mechanism, 71 ... Pivot shaft, 72 ... Swing arm, 73 ... Pivot shaft,
C1 ... Unit shelf (fixed shelf), C2, C3, C4, C5, C6 ... Unit shelf (travel shelf),
81 ... Moving shelf, 85 ... Working passageway, 90 ... Link mechanism, 91 ... Pivot shaft, 92 ... Swing arm, 93 ... Pivot shaft.

Claims (9)

In an entry / exit management system that manages entry / exit to a specific area where only specific users registered in advance are allowed to enter / exit from the entrance / exit,
RFID tag for personal recognition that a specific user wears and enters,
Registered tag data storage means for registering and storing tag data of RFID tags for personal recognition of specific users;
RFID reading means for reading tag data of the RFID tag for personal recognition using an antenna having a certain communication range provided at an entrance / exit of a specific area;
A passage detection sensor that is provided at a position biased in the direction of entry / exit of the communication range of the antenna at the entrance / exit of the specific area,
An entry / exit management means for managing entry / exit by comparing with a registration tag data stored in the registration tag data storage means based on a passage detection signal of the passage detection sensor and a reading signal of the RFID reading means;
The entry / exit management means includes:
Based on the operating state of the passage detection signal of the passage detection sensor and the reading status of the RFID reading means, it is determined whether to enter and exit a specific area,
When there is reading by the RFID reading means, the read tag data is compared with the registered tag data stored in the registered tag data storage means to determine whether or not the specific user is entering or leaving,
An entry / exit management system characterized by managing user entry / exit.   The entry / exit management means starts reading the RFID reading means by inputting a passage detection signal of the passage detection sensor, and determines the entry and exit from the specific area by measuring the time until reading is impossible. The entrance / exit management system according to claim 1.   The entry / exit management means starts reading the RFID reading means by the input of the passage detection signal of the passage detection sensor, stops reading of the RFID reading means once by the input of the passage detection signal, and then after a predetermined time 2. The entry / exit management system according to claim 1, wherein reading by the RFID reading unit is restarted, and entry into and exit from a specific area is determined based on whether or not reading is performed.   The entry / exit management means monitors changes in radio field intensity during reading by the RFID reader means, and enters and exits a specific area based on the radio field intensity and the operating state of the passage detection signal of the passage detection sensor. The entrance / exit management system according to claim 1, wherein: Multiple unit shelves are guided by rails that are perpendicular to the front surface of the shelves, and are arranged so that they can move freely.When converging, the adjacent front ports touch each other, move the required unit shelves between any adjacent unit shelves The working path in the moving shelf that selectively opens and forms the working path is the specific area,
The entrance / exit part of each unit shelf serving as an entrance / exit of the working passage is used as an entrance / exit of the specific area, and the antenna and the passage detection sensor are provided at the entrance / exit part of each unit shelf. The entry / exit management system according to any one of claims 1 to 4. An operation switch provided in front of each unit shelf;
There is provided moving shelf drive control means for moving the unit shelf based on the operation signal of the operation switch, the reading signal of the RFID reading means, and the passage detection signal of the passage detection sensor to control the opening and closing of a required work path. And
The moving shelf drive control means includes
Reading by the RFID reading means for a predetermined time by an operation signal of the operation switch,
6. The control is performed such that the unit shelf is moved and a required work path is opened only when the read tag data matches the registered tag data stored in the registered tag data storage means and matches. The entry / exit management system described. The moving shelf drive control means includes
When moving the unit shelf to form the required work path, it opens to the width of the path that one user can pass at the beginning, and when it is recognized that the user has entered the work path, the required path width is reached. The entrance / exit management system according to claim 6, wherein the entrance / exit management system is controlled to expand. Multiple unit shelves are guided by rails that are perpendicular to the front surface of the shelves, and are arranged so that they can move freely.When converging, the adjacent front ports touch each other, move the required unit shelves between any adjacent unit shelves In the entrance / exit management system for managing the entry / exit of users to / from the specific area, the work path in the movable shelf that selectively opens and forms the work path is a specific area.
RFID tag for personal recognition that a specific user wears and enters,
Registered tag data storage means for registering and storing tag data of RFID tags for personal recognition of specific users;
An antenna that moves above the unit shelf by a moving mechanism as the unit shelf moves, and is located outside the specific region when the unit shelf is closed, and the specific region when the unit shelf is open. RFID reading means for reading the tag data of the RFID tag for personal recognition by an antenna located inside;
A moving shelf control means for allowing the unit shelf to move only when the reading signal of the RFID reading means and the registered tag data stored in the registered tag data storage means match and permitting the opening and closing of the required work path;
An intruder detection sensor that detects at least one intruder entering the specific area provided at a position biased to the entrance / exit of the communication range of the antenna in the specific area;
An entry / exit management means for managing entry / exit based on an intruder detection signal of the intruder detection sensor, a read signal of the RFID reading means, and registration tag data stored in the registration tag data storage means,
The entry / exit management means includes:
Based on the intruder detection signal of the intruder detection sensor and the reading status of the RFID reader means to determine entry and exit to a specific area,
When there is reading by the RFID reading means, the read tag data is compared with the registered tag data stored in the registered tag data storage means to determine whether or not the specific user is entering or leaving, An entry / exit management system characterized by managing user entry / exit. The specific area is an article storage area;
An RFID tag for identifying an item is attached to an item to be stored,
9. The tag data of the RFID tag for identifying an article is read by the RFID reader when the article passes through an entrance / exit of a specific area together with a specific user. The entry / exit management system described in any one of the items.

Images