JP2013191051A - Entrance and exit management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an entrance and exit management system for suppressing capital investment, and alleviating a jam in congestion.SOLUTION: An entrance and exist management system has: an IC tag 1 which stores individual authentication information capable of identifying an operator M; a portable article 2 to which the IC tag 1 is attached, and which is carried by the operator M in entrance and exist; an IC tag reader 3 capable of reading the individual authentication information of the IC tag 1; a gate 4 which has the IC tag reader 3, and is arranged on an approach route of a specific area; and a controller 5 capable of receiving a reading signal of the IC tag reader 3, in which the gate 4 is constituted so that simultaneous passage is possible to both directions of entrance and exit, and the controller 5 is constituted so as to recognize that the entrance and exit management system enters a specific area when the number of times that the IC tag reader 3 reads the individual authentication information of the IC tag 1 is an odd number, and to recognize that the entrance and exit management system leaves from the specific area when the number of times is an even number.

Description

  The present invention relates to an entry / exit management system for managing entry / exit of an operator to / from a specific area, and more particularly to an entry / exit management system using an IC tag.

  An entrance / exit management system for managing entrance / exit of authorized persons (operators, etc.) in specific areas such as restricted access areas has already been put into practical use. Such entrance / exit management systems are generally not carried by authorized persons. A contact-type IC tag, an IC tag reader that is provided at the entrance / exit of the specific area and reads the identification information stored in the IC tag, and determines whether or not to enter the specific area based on the read result of the IC tag reader (See, for example, Patent Document 1 and Patent Document 2).

  For example, the entrance / exit management apparatus described in Patent Document 1 reads card information reading means for reading card information including personal information of the user stored in an IC card possessed by the user, and reading by the card information reading means. Card information storage means for storing received card information, card information stored in the card information storage means, and tag identification information stored in a non-contact IC tag possessed by the user in association with each other Tag identification information storage means, and tag identification information reading provided at the entrance / exit for each user to enter and leave the specific area and reading the tag identification information stored in the non-contact IC tag possessed by each user Tag identification information read by the tag identification information reading means based on tag identification information stored in the tag identification information storage means. Authenticating means for authenticating, a notifying means for notifying a user who intends to enter or leave the specific area, an authentication result by the authenticating means, if authenticated by the authenticating means, an authenticated tag identification information, and Entry / exit information storage means for storing entry / exit information based on the reading result of the tag identification information in association with each other.

  According to such an entry / exit management device, the card information of the IC card and the tag identification information of the non-contact IC tag are stored in association with each other, and when the tag identification information is authenticated at the time of entry / exit of the user, The authenticated tag identification information and entry / exit information based on the reading result of the tag identification information are stored in association with each other. Therefore, the user's personal information and the entrance / exit information based on the reading result of the tag identification information can be stored in association with each other, and entrance / exit management of the specific area where the permitted person changes daily can be performed more efficiently. it can.

  Moreover, the parallel identification system described in Patent Document 2 includes two or more antennas that are associated with identification targets, each having unique identification information and having different communication distances. RFID that emits a response wave including identification information and a directional antenna that performs transmission and reception in an arrangement direction in which a plurality of identification objects can be arranged, emits an interrogation wave from the directional antenna, and the arrangement for the interrogation wave Receiving means for receiving a response wave from each antenna of each RFID to be identified existing in the direction, and obtaining identification information of each antenna of each RFID from these response waves; Based on how many antennas among the above antennas are read, the identification target having the RFID And a, the existence range identifying means for identifying whether present in any of a plurality of distance ranges defined by the difference in the communication distance of each antenna.

  According to such a parallel identification system, since the communication distances of the respective antennas provided in the RFID are different, the identification accompanying the RFID depends on which of the plurality of antennas of the same RFID can be acquired by the reading unit. The distance range where the target exists can be specified. As a result, it is possible to identify which identification target is present in which distance range in the arrangement direction substantially simultaneously in parallel.

JP 2006-22525 A Japanese Patent No. 387039

  In an entrance / exit management system such as that described in Patent Document 1, a personal authentication gate system that passes through gates one by one is often adopted. In addition, in order to grasp whether the worker has entered or left the specific area, an IC card is often used together. However, the personal authentication gate method has a problem in that when there are a large number of passing people, such as when work is started, a traffic jam occurs near the gate and the work start time is delayed. In addition, if the number of gates is increased in consideration of traffic jams, there is a problem that not only the equipment cost increases, but also the investment efficiency is lowered because the usage frequency is low except when it is congested. In addition, when an IC card is used together, it is necessary to arrange both card readers for entry and exit, which increases equipment costs and requires processing to read the IC card to the card reader. There was a problem that was likely to occur.

  Moreover, although the entrance / exit management system described in Patent Document 2 can identify the passing position in the width direction of the gate, it cannot determine whether it has entered or exited alone, and eventually the gate entrance / exit It is necessary to distinguish between entrance and exit, and there is a problem that traffic jams occur when crowded. In addition, when an operator accidentally passes entrance and exit, there is a problem that an erroneous flag is set and erroneous recognition increases. Furthermore, it is conceivable to determine whether the worker moves or not by detecting the moving direction of the worker, but there is a problem that the program becomes complicated and the system load becomes high at the time of congestion.

  The present invention was devised in view of the above-described problems, and an object thereof is to provide an entrance / exit management system capable of suppressing capital investment and alleviating congestion during congestion. .

  According to the present invention, in an entrance / exit management system for managing entry / exit of a worker to / from a specific area, an IC tag storing personal authentication information capable of identifying the worker, and the IC tag attached to the IC tag A portable object that is carried when entering and exiting, an IC tag reader capable of reading the personal authentication information of the IC tag, a gate having the IC tag reader and disposed on an approach path of the specific area, and the IC A control device capable of receiving a reading signal of a tag reader, wherein the gate is configured to be capable of simultaneous passage in both directions of entry and exit, and the control device includes the IC tag reader An entrance / exit tube characterized by recognizing that it has entered the specific area when the number of times the personal authentication information of the IC tag is read is an odd number, and recognizing that it has left the specific area when the number is even. System is provided.

  The control device may recognize that an operator identified by the read signal has passed through the gate when the read signal continuously exceeds a certain time, or the read signal continues. If the operator exceeds a certain number of times, the operator identified by the read signal may recognize that the gate has passed, or the next read signal is not received for a certain time after receiving the read signal. In this case, it may be recognized that an operator identified by the read signal has passed through the gate.

  A plurality of the gates are arranged, the IC tag reader and the gate have an identification number that can identify each individual, and the control device identifies the gate from which the reading signal is transmitted while identifying the gate of the operator. You may make it manage entrance and exit.

  The gate has a human sensor and a monitoring camera connected to the control device, and the control device does not receive the read signal and receives a detection signal from the human sensor, You may make it image | photograph the image | video of the said gate vicinity by operating a surveillance camera.

  The gate may have a turn-back prohibition area or a run-through prohibition area before and after the gate. Moreover, the said portable thing may be a helmet and the said IC tag may be attached to the buttocks of the said helmet.

  A second IC tag storing personal authentication information capable of identifying the worker, a worker ID attached to the second IC tag and removed when the worker enters the entrance, and returned when leaving the worker, and arranged upstream of the gate. A bulletin board that can lock the worker ID, and a second IC tag reader that can read the personal authentication information stored in the second IC tag from the worker ID locked to the bulletin board. And the control device is configured to be able to receive a read signal of the second IC tag reader, and based on the read signals from the IC tag reader and the second IC tag reader, the operator enters and exits May be managed.

  According to the above-described entrance / exit management system according to the present invention, a bidirectionally simultaneous gate is used, and it is recognized that the IC tag has been read when the number of times of reading is an odd number, and is recognized when the number is even. As a result, it is not necessary for the operator to consider the reading of the IC tag and the entry / exit route, and the operator's entry / exit can be grasped simply by passing through the gate. Further, it is not necessary to arrange a plurality of gates at the same entrance and exit, and it is not necessary to prepare a gate passage permission system such as an IC card or a card reader. Therefore, according to the entrance / exit management system according to the present invention, the capital investment can be suppressed and the traffic jam at the time of congestion can be reduced.

  In addition, by using the entrance / exit management with the worker ID having the second IC tag, the entrance / exit management by the portable object having the IC tag can be complemented, and the entry / exit of the worker can be grasped more accurately. Can do.

It is a whole lineblock diagram showing the entrance / exit management system concerning a first embodiment of the present invention. FIG. 2 is a detailed explanatory view of the gate shown in FIG. 1, wherein (a) shows a top view and (b) shows a front view. It is a figure which shows the processing content of the control apparatus shown in FIG. 1, (a) is the reading signal reception condition for every worker, (b) is the passage time data for every worker, (c) is the present number of visitors. A display screen is shown. It is a figure which shows the processing method of the status change of entrance / exit information, (a) has shown the 1st example, (b) has shown the 2nd example. It is a figure which shows the 3rd example in the processing method of the status change of entrance / exit information, (a) is the reading signal reception condition for every worker, (b) is the worker by the 1st example shown to Fig.4 (a). (C) shows entry / exit time data for each worker according to the third example. It is a whole block diagram which shows the entrance / exit management system which concerns on 2nd embodiment of this invention. FIG. 7 is a detailed explanatory diagram of the entrance / exit management system shown in FIG. 6, in which (a) shows an external view of a bulletin board and (b) shows a processing flow of the control device.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. Here, FIG. 1 is an overall configuration diagram showing the entrance / exit management system according to the first embodiment of the present invention. 2A and 2B are detailed explanatory views of the gate shown in FIG. 1, wherein FIG. 2A shows a top view and FIG. 2B shows a front view. FIG. 3 is a diagram showing the processing contents of the control device shown in FIG. 1, (a) is a reading signal reception status for each worker, (b) is passing time data for each worker, and (c) is the current state. The number of visitors display screen is shown.

  As shown in FIGS. 1 to 3, the entry / exit management system according to the first embodiment of the present invention is an entry / exit that manages entry / exit of an operator M into / from a specific area (for example, a construction ship S and a dock D). An IC tag 1 that stores personal authentication information that can identify the worker M, a portable object 2 that is attached to the IC tag 1 and that the worker M carries when entering and exiting, and a personal authentication of the IC tag 1 An IC tag reader 3 that can read information, a gate 4 that has the IC tag reader 3 and is arranged on an entry path in a specific area, and a control device 5 that can receive a read signal of the IC tag reader 3. The gate 4 is configured to be capable of simultaneous entry and exit, and the control device 5 is configured such that the number of times the IC tag reader 3 reads the personal authentication information of the IC tag 1 is an odd number. Recognize that you entered a specific area, even number It is configured to recognize that exited from the specific region when.

  The specific area shown in FIG. 1 is set as an area in the dock D and an area in the construction ship S under construction in the dog D. The construction ship S is arranged on the board in the dock D, the deck and the outer periphery of the dock D are connected by the piers Pa and Pb, and can enter the construction ship S from the ground. Yes. In addition, a staircase Pc is disposed in the dock D, and is configured so that it can enter the bottom from the ground. Operations such as connection of various devices, wiring, painting, and welding are performed in the construction ship S, and operations such as painting and welding are performed in the dock.

  In particular, since the construction ship S has a complicated structure and may involve dangerous work, it is necessary to manage the number of visitors. The specific area is not limited to that shown in the figure, and may be set in a repair ship, in a manhole, in a plant, in another building or structure, in a ship or in a tank of a plant, or in a double ship. It may be limited to a narrow area such as the bottom, or another specific area may be set in the specific area.

  As a personal authentication method constituted by the IC tag 1 and the IC tag reader 3, for example, radio frequency RFID (Radio Frequency Identification) using the UHF band is adopted. The IC tag 1 stores personal authentication information that can identify an individual such as the identification number, affiliation, name, and age of the worker M. As shown in FIG. 2B, the IC tag reader 3 has, for example, a transmission antenna 31 and a reception antenna 32, and the transmission antenna 31 and the reception antenna 32 are disposed, for example, above the gate 4. The Since the radio waves of the IC tag reader 3 are generally transmitted in an approximately elliptical shape, reading leakage of the IC tag 1 is reduced by arranging the transmitting antenna 31 and the receiving antenna 32 obliquely toward the central portion. You may do it. Further, the IC tag reader 3 generally performs a reading process of the IC tag 1 by transmitting radio waves a plurality of times per second.

  Since the IC tag 1 must be readable when passing through the gate 4, the IC tag 1 must be attached to the portable object 2 that is always carried by the worker M and brought into a specific area (building ship S, dock D, etc.). Further, since the transmission antenna 31 and the reception antenna 32 constituting the IC tag reader 3 are arranged above the gate 4, the IC tag 1 needs to be attached to a place where radio waves transmitted from the upper part can be easily received. is there.

  Therefore, for example, the portable object 2 is a helmet, and the IC tag 1 is attached to the back side of the buttocks of the helmet. Further, in order to make the IC tag 1 easy to read when passing through the gate 4, the IC tag 1 may be attached to the front part, rear part or front / rear part of the helmet. For example, when the IC tag 1 is disposed on the surface of the helmet, the IC tag 1 is easily damaged, and when the IC tag 1 is disposed on the top inner surface of the helmet, it is necessary to disassemble the cushioning material or the like. It is possible to easily attach the IC tag 1 to the buttocks. In addition, the arrangement | positioning location of IC tag 1 is not limited to the buttocks of a helmet, Other parts including the top part of a helmet may be sufficient, and portable objects other than a helmet (for example, work clothes, a belt, etc.) ).

  As shown in FIGS. 2A and 2B, the gate 4 has a gate-shaped frame shape and is arranged at an entrance / exit portion to a specific region. The gate 4 has a width that allows at least one entrance person and one exit person to pass each other, and is configured to be able to pass in both directions simultaneously. The gate 4 may have a width that allows the workers M arranged in two or more rows (for example, three rows, four rows, etc.) to pass simultaneously depending on the congestion situation at the time of work. The gate 4 is not provided with a gate passage permission system such as an IC card reader (a system for reading and opening an IC card to open or close a door or a bar). 2), the IC tag reader 3 can read the personal authentication information stored in the IC tag 1 only by passing through the gate 4. Therefore, the gate 4 can also be expressed as a free gate system.

  In such a free gate system, when a person who is not a worker M (that is, a person who does not have the IC tag 1) tries to enter with a helmet that does not have the IC tag 1 attached, the gate 4 is used to retain the gate. I can't. Therefore, the gate 4 includes a human sensor 41 and a monitoring camera 42 connected to the control device 5, and the control device 5 does not receive the read signal of the IC tag 1 and detects a detection signal from the human sensor 41. Is received, the surveillance camera 42 is operated to capture an image of the vicinity of the gate 4. A commercially available sensor using infrared rays, ultrasonic waves, visible light, or the like can be used for the human sensor 41, and a commercially available video camera can also be used for the surveillance camera 42. Can be incorporated.

  Further, since the IC tag reader 3 only reads the IC tag 1 passing through the gate 4, it cannot be determined from the read signal alone whether the worker M has entered or left the specific area. Further, since a gate passage permission system such as an IC card is not adopted, for example, when the worker M turns back while passing through the gate 4, the worker M does not pass through the gate 4. Nevertheless, it may be erroneously recognized as having passed through the gate 4.

  Therefore, as shown in FIG. 2A, the turn-back prohibition area 43 may be set before and after the gate 4. The anti-return area 43 may be painted directly on the ground or floor, or may be distinguished by laying a mat or the like. The anti-return area 43 needs to be secured at least a distance L necessary for the IC tag reader 3 to read the IC tag 1 when passing through the gate 4 at a walking speed of a general worker M. In practice, it is preferable to set the distance with a slight margin.

  When the worker M runs through the gate 4, the IC tag reader 3 cannot read the IC tag 1, and although the worker M passes through the gate 4, the worker M There is a possibility that it may be mistakenly recognized that it has not passed through the gate 4. Therefore, the turn-back prohibition area 43 may be set as a run-through prohibition area.

  As shown in FIG. 1, the control device 5 is connected to the gate 4 via a telecommunication line I such as the Internet or a LAN. Specifically, the control device 5 is electrically connected to the IC tag reader 3, the human sensor 41, and the monitoring camera 42, and is configured to be communicable. The control device 5 is a host computer of an entry / exit management system, and includes a processing device 51 including a CPU, a storage device 52 for storing data such as a control program and a read signal, a display for displaying entry / exit information, and the like. Display device 53. Moreover, the control apparatus 5 is often installed in the management office H separated from the specific area, for example.

  The processing contents of the control device 5 will be described. For example, at the work site of the construction ship S, a plurality of workers M enter and leave the construction ship S and the dock D several times a day. When the worker M wearing the helmet (portable 2) with the IC tag 1 attached passes through the gate 4 to enter and exit the work site (specific area), the IC tag reader 3 is stored in the IC tag 1 The authentication information is read, and a read signal (read personal authentication information) is transmitted to the control device 5. The control device 5 receives the read signal from the IC tag reader 3 via the telecommunication line I and stores the data in the storage device 52.

  The control device 5 analyzes the read signal received from the IC tag reader 3 using a desired program, and determines whether the worker M has entered the specific area or has left the specific area. For example, it is assumed that a read signal related to the worker M with identification numbers (ID) No. 0001 to 0003 has been received as shown in FIG. From the elapsed time of the read signal, for example, the worker M of No. 0001 can recognize that the gate 4 has been passed four times. Whether or not the worker M carrying the IC tag 1 has passed through the gate 4 can be recognized, for example, based on whether or not the read signal continuously exceeds a certain time.

  As described above, the IC tag reader 3 transmits radio waves a plurality of times per second, and the worker M moves within a sensing area (range in which radio waves reach) in accordance with the congestion situation when passing through the gate 4. Stay for about a second. Therefore, the IC tag 1 of the worker M passing through the gate 4 is read by the IC tag reader 3 a plurality of times continuously. Therefore, when the time during which the read signal continues (for example, Δt11, Δt12, Δt13, Δt14) exceeds a predetermined reference time, it is determined that the signal has passed through the gate 4, and when the read signal does not reach the reference time, it passes through the gate 4. It can be determined that it is not. The reference time is arbitrarily set according to the size of the sensing area of the IC tag reader 3 and the traffic situation at the time of in-service (maximum congestion), but as a guide, it is set to a time of about 5 to 10 seconds.

  Then, as shown in FIG. 3 (b), the worker M of No. 0001 takes the gate 4 at the time of 10:00:00, 12:00:00, 13:00:00 and 16:00:00. Is recognized as passing. Similarly, the worker M of No. 0002 is recognized as having passed through the gate 4 at the times of 10:03:10, 11:58:20, 12:57:40 and 16:02:30. By the way, in the worker M of No. 0003, it is assumed that the time Δt31 in which the read signal continues does not reach the reference time. In this case, the reading signal at time Δt31 does not recognize that the worker M has passed through the gate 4. Therefore, the control device 5 determines whether or not the worker M has passed the gate 4 based on the subsequent times Δt32, Δt33, and Δt34. As a result, the worker M of No. 0003 is recognized as having passed through the gate 4 at the times of 10:04:30, 12:03:10 and 13:02:50.

  After receiving the read signal from the IC tag reader 3, the control device 5 analyzes whether the worker M has passed through the gate 4, and exits whether the worker M has entered the specific area according to the analysis result. Determine whether it was done. Specifically, the determination is made based on the number of passages of the gate 4 of the worker M with the same identification number (ID), and it is recognized that the entry is made when the number of passages is an odd number, and the exit is recognized when the number of passages is an even number. . Generally, a specific area that is a work site always has a state in which all workers are forced to leave (for example, at night or on holidays). The number of passes of the worker M through the gate 4 is counted based on the state in which all workers have left. Therefore, the first pass through the gate 4 means entry into a specific area, and the second pass is necessarily exiting, the third pass is entering, the fourth pass is leaving, ... Will mean. That is, the odd number means "entrance" and the even number means "exit".

  As shown in FIG. 3B, the number of times of passage (number of times of data acquisition) can be easily counted by converting the passage time of the gate 4 into data for each worker M. In the state shown in FIG. 3B, since the worker M of No. 0001 has passed the gate 4 four times, it is recognized that the worker M has left the specific area at present. Similarly, the worker M of No. 0002 is also recognized as having left the specific area. On the other hand, since the worker M of No. 0003 has passed the gate 4 only three times, it is recognized that he / she has entered the specific area at present.

  Then, the control device 5 displays information such as the current time (date and time), the current number of visitors, and the names of visitors on the display device 53 such as a display, and provides entry / exit management information to the administrator. The display device 53 is not limited to a display connected to the control device 5 by wire, and may be a tablet PC or a smartphone wirelessly connected to an electric communication line I such as the Internet or a LAN.

  Incidentally, whether or not the worker M carrying the IC tag 1 has passed through the gate 4 can be recognized, for example, based on whether or not the read signal has continuously exceeded a certain number of times. It is apparent from the read signal reception state shown in FIG. 3A that the number (number) of read signals is proportional to the time Δt that the read signals continue. The reference number is arbitrarily set according to the size of the sensing area of the IC tag reader 3, the radio wave transmission interval, and the traffic jam situation at the time of in-service (maximum congestion). For example, if the IC tag reader 3 transmits a radio wave 5 times per second, the reference number is set to about 25 to 50 times.

  Here, FIG. 4 is a diagram illustrating a status change processing method for entry / exit information, where (a) illustrates a first example and (b) illustrates a second example. The reading signal in each figure is illustrated with a sample of a specific worker M (for example, worker M of No. 0001) as a sample.

  The first example shown in FIG. 4A recognizes that the worker M identified by the read signal has passed through the gate 4 when the read signal continuously exceeds a certain time (reference time). Shows the case. Here, a case is illustrated in which the times Δt11 to Δt14 in which the read signals continue exceed all the reference time.

  Accordingly, the entry / exit information in the control device 5 is obtained when the reading signal is received for the first time when the reading signal is received from a state in which no status is recorded (a state in which all workers are forcibly leaving). Since the reception is (n = 1), that is, the reception is an odd number, the status is switched to “entrance”. Thereafter, when the time Δt12 has elapsed after receiving the read signal while maintaining the status, this read signal is the second reception (n = 2), that is, the even reception, so that the status is “exit”. Switch to. Thereafter, this process is repeated to switch the status of “entrance” and “exit” alternately. Finally, when a forced exit command is issued to all workers, the status information is returned to a state that is neither “entrance” nor “exit”.

  The second example shown in FIG. 4B recognizes that the worker M identified by the read signal has passed through the gate 4 when the next read signal is not received for a certain time Δs after the read signal is received. Shows when to do. In this processing method, it is not necessary to identify whether or not the reading signal is continuous, and the worker M is counted depending on whether or not a new reading signal is received during a certain time Δs counted for each individual reading signal. It is determined whether or not has passed through the gate 4. The certain time Δs is set to be longer than the radio wave transmission interval of the IC tag reader 3, for example, until the time when the worker M will finish passing the sensing area of the IC tag reader 3 (for example, about 5 to 10 seconds). Set to the time.

  For example, as shown in the figure, when four consecutive read signals are received, the status of the entry / exit information is switched after a predetermined time Δs has elapsed since the last read signal. The status is switched to “entrance” when the number of times the read signal is not received for a certain time Δs is an odd number, and the status is switched to “exit” when the number is an even number. In this second example, the worker M has passed through the gate 4 when the read signal is based on the continuous time and number of times as in the case of the fourth (n = 4) continuous read signal. Even if it is determined that the worker M is not, it can be determined that the worker M has passed through the gate 4. Therefore, for example, even if the worker M has run through the gate 4, the trend of the worker M can be grasped.

  Here, FIG. 5 is a diagram showing a third example in the processing method of status change of entry / exit information, where (a) is a reading signal reception status for each worker, and (b) is shown in FIG. 4 (a). Further, passage time data for each worker according to the first example, (c) shows entry / exit time data for each worker according to the third example.

  As shown in FIG. 5 (a), in the case of the worker M of No. 0001, the continuous reading signals are received three times, which are continuous for the times Δt11, Δt12, and Δ13, respectively, and all the times Δt11 to It is assumed that Δ13 exceeds the reference time. Further, in the case of the worker M of No. 0002, the continuous reading signal is received three times, and the time Δt21, Δt22, and Δ23 are continuous, respectively, the time Δt21 and the time Δ23 exceed the reference time, and only the time Δ22 is received. The reference time is not exceeded. Further, in the case of the worker M of No. 0003, the continuous reading signal is received three times, each of which continues for the times Δt31, Δt32, Δ33, and all the times Δt31 to Δ33 exceed the reference time. And

  By the way, as shown in FIG. 1, a plurality of gates 4 (for example, A gate, B gate, C gate) are arranged in a specific region (building ship S and dock D). In the processing methods of the first example and the second example described above, it is only necessary to recognize whether or not the worker M has entered the specific area. There is no need to identify. However, there is a case where it is desired to manage the entry / exit information of the worker M for each gate 4 due to work process management and the like. In such a case, the IC tag reader 3 and the gate 4 have an identification number that can identify each individual, and the control device 5 identifies the gate 4 from which the reading signal is transmitted while the worker M enters and exits. Should be managed.

  For example, No. 01 IC tag reader 3 is arranged at No. A gate 4 (A gate), No. 02 IC tag reader 3 is arranged at No. B gate 4 (B gate), In the case where the No. 03 IC tag reader 3 is arranged in the No. C gate 4 (C gate), information indicating which IC tag reader 3 is arranged in which gate 4 is previously stored in the control device 5. Is stored in the storage device 52. When each IC tag reader 3 transmits a read signal of the IC tag 1, each IC tag reader 3 transmits data by adding its own identification number. With this processing, the control device 5 can recognize which worker M has passed through which gate 4.

  As shown in FIG. 4 (b), in the entrance / exit management system that does not identify the gate 4, the worker M of No. 0001 has the times of 10:00:00, 12:00:00, and 13:00:00. It is recognized that the vehicle has passed through the gate 4, and if it is an odd-numbered pass, it is recognized that it has entered a specific area, and if it is an even-numbered pass, it is recognized that it has left the specific area. Therefore, in the case of the worker M of No. 0002, since the time Δ22 does not exceed the reference time, it is recognized as not passing through the gate 4, and the gate passing time of the worker M of No. 0002 is 10: Only 2 times 03:10 and 12:57:40. In this case, the current status of the worker M of No. 0002 is “exit” from the specific area.

  On the other hand, when identifying the passage gate of the worker M, the number of passages is counted for each gate 4 as shown in FIG. That is, when the number of times the gate passes through each gate 4 is an odd number, it is determined to enter, and when it is an even number, it is determined to leave. For example, the worker M of No.0001 enters the specific area from the B gate at time Δt13, the worker M of No.0002 enters the specific area from the B gate at time Δt23, and the worker M of No.0003 It is assumed that a specific area is entered from the B gate at time Δt33. In this case, the worker M of No. 0002 enters the specific area from the A gate at time 10:03:10, and then exits from the specific area without leaving the specific area at time 12:57:40 from the B gate. Will be entering.

  When the entry / exit information is inconsistent in this way, for example, the entry / exit information at a later time is correct and the status of the entry / exit information is changed. Such a case is, for example, when the worker M passes through the gate 4 (A gate) at time Δt22 or when the IC tag reader 3 cannot read the IC tag 1 due to an obstacle or the like. Can occur. By identifying the passing gate of the worker M, it is possible to eliminate the inconsistency or mismatch of the entry / exit information due to the reading error of the IC tag reader 3, and the correct entry / exit information can be recognized.

  As described above, when the entrance gate of the worker M is identified and entry / exit management is performed, the entrance / exit must be set to always use the same gate 4. For example, when entering a specific area from the A gate, the worker M is instructed or the specific area is divided for each gate 4 so as to always leave the A gate. When it is desired to grasp the movement route of the worker M, the entry gate information of the worker M is grasped by adding up the number of passages of all the gates 4 while identifying the passage gate of the worker M. It may be.

  According to the entrance / exit management system according to the first embodiment described above, it is recognized that the gate 4 that allows bidirectional simultaneous passage is used and the IC tag 1 is read when the number of readings is an odd number, and the gate is exited when the number is even. Therefore, the worker M does not need to consider the reading of the IC tag 1 or the entry / exit route, and can grasp the entry / exit of the worker M simply by passing through the gate 4. it can. Further, it is not necessary to arrange a plurality of gates 4 at the same entrance and exit, and it is not necessary to prepare a gate passage permission system such as an IC card or a card reader. Therefore, according to the entrance / exit management system according to the present invention, capital investment can be suppressed, and congestion during congestion can be reduced.

  Next, an entrance / exit management system according to a second embodiment of the present invention will be described with reference to FIGS. Here, FIG. 6 is an overall configuration diagram showing an entrance / exit management system according to the second embodiment of the present invention. FIG. 7 is a detailed explanatory diagram of the entrance / exit management system shown in FIG. 6, in which (a) shows an external view of the bulletin board and (b) shows a processing flow of the control device. In addition, about the same component as the entrance / exit management system which concerns on 1st embodiment mentioned above, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  The entrance / exit management system according to the second embodiment shown in FIGS. 6 and 7 includes a second IC tag 6 storing personal authentication information capable of identifying the worker M, and a worker to which the second IC tag 6 is attached. The worker ID 7 that M is removed when entering the entrance and returned when exiting, the bulletin board 8 that is arranged upstream of the gate 4 and can be locked, and the operator ID 7 that is locked to the bulletin board 8 A second IC tag reader 9 capable of reading the personal authentication information stored in the IC tag 6, and the control device 5 is configured to receive a read signal of the second IC tag reader 9, and the IC The entry / exit of the worker M is managed based on the read signals from the tag reader 3 and the second IC tag reader 9.

  As shown in FIG. 7A, the worker ID 7 is, for example, a worker badge, and is normally locked with a clip on a chest pocket of work clothes as a name tag. Then, when entering a specific area (for example, the building ship S and dock D), before passing through the gate 4, the user stops at the bulletin board 8, removes the operator ID 7 and locks it to the bulletin board 8. A second IC tag 6 storing personal authentication information is affixed to the inside or back of the worker ID 7. When the worker M leaves the specific area, the worker M stops at the bulletin board 8 and retrieves the worker ID 7. The worker ID 7 is not limited to a badge shape, and may be a card shape hanging from the neck, for example.

  The bulletin board 8 may be arranged at a place where all workers M entering and leaving the specific area can easily visit, or the bulletin board 8 may be arranged for each gate 4. The bulletin board 8 has a locking portion 81 that can lock the worker ID 7. The locking portion 81 is constituted by, for example, a plate-shaped portion, and the worker card 7 may be locked by sandwiching the plate-shaped portion with a clip of the worker badge, or the main body of the bulletin board 8. An operator badge 7 may be locked by inserting an operator badge between the surface and the locking portion 81. When the worker ID 7 has a card shape, the locking portion 81 is constituted by, for example, a groove portion on which a card can be placed or a hook that can lock a strap.

  A second IC tag reader 9 is arranged in front of the bulletin board 8 so that the entire bulletin board 8 can be seen. When the bulletin board 8 is large, the front surface of the bulletin board 8 may be scanned by rotating the second IC tag reader 9 left and right or up and down and left and right. The second IC tag reader 9 scans the bulletin board 8 regularly (for example, at intervals of several seconds), and reads the second IC tag 6 locked to the bulletin board 8. Therefore, the worker M whose worker ID 7 is locked to the bulletin board 8 is “entering” the specific area, and the worker M whose worker ID 7 is not locked to the bulletin board 8 is the specific area. "Leave" from.

  Further, when there are obstacles (work vehicle M, automobile, carry-in goods, etc.) in front of the bulletin board 8, the worker ID 7 locked to the bulletin board 8 is hidden, and the second IC tag 6 is fixed. It may not be possible to read the time. Therefore, it is determined whether or not the worker M has “exited” from the specific area after a certain time (for example, several minutes) has elapsed since the reading signal from the second IC tag reader 9 is not received. It may be.

  As shown in FIG. 6, the second IC tag reader 9 is connected to an electric communication line I such as the Internet or a LAN, and the read signal of the second IC tag reader 9 is received by the control device 5, and the storage device 52. Note that the personal authentication method including the second IC tag 6 and the second IC tag reader 9 employs a radio frequency type RFID using the UHF band, as with the IC tag 1 and the IC tag reader 3. In this system, when the bulletin board 8 is made of a metal plate, the reading distance is shortened. Therefore, the bulletin board 8 is preferably made of wood such as a plywood board or a resin material such as plastic.

  The control device 5 manages the entry / exit of the worker M by the processing flow shown in FIG. As described above, the control device 5 has the entry / exit information (board information) based on the read signal from the second IC tag reader 9 and the entry / exit information (gate information) based on the read signal from the IC tag reader 3. doing. The board information and the gate information may be obtained earlier in time. Then, the control device 5 checks whether the board information entry / exit information matches the gate information entry / exit information. If the entry / exit information in the board information matches the entry / exit information in the gate information (Y), the entry / exit information in the board information and the entry / exit information in the gate information do not match. In the case of (N), error display is performed.

  When the bulletin board 8 and the gate 4 are separated from each other, a certain time lag occurs, so that a short time error display may be ignored. For example, in consideration of the travel time between the bulletin board 8 and the gate 4, an error occurs only when the board information entry / exit information and the gate information entry / exit information do not match and the state is maintained for a certain period of time. You may make it display.

  The administrator of the entry / exit management system confirms the location of the worker M who has displayed the error by contacting the site supervisor or the person himself / herself, and based on the correct entry / exit information, the worker M who has displayed the error enters and exits. Change information status (data correction). This data correction is performed, for example, by changing the entry / exit information of the board information and gate information, which has been incorrect, to the correct entry / exit information, and finally the entry / exit information matches. Will be. For example, this processing flow may be performed every time the board information is obtained, or may be performed every certain time (for example, one hour).

  The entrance / exit management system according to the second embodiment described above is an auxiliary system that assists the entry / exit information of the worker M by the read signal of the second IC tag 6 with respect to the entrance / exit management system according to the first embodiment. It can be said that it was granted. Thus, by using the entrance / exit management by the second IC tag 6 together, the entrance / exit management by the IC tag 1 can be complemented, and the entrance / exit of the worker M can be grasped more accurately. In addition, since the second IC tag 6 is read in a state where the worker ID 7 is planarly fixed to a fixed medium such as the bulletin board 8, the device configuration can be simplified and the reading accuracy can be improved.

  The present invention is not limited to the above-described embodiment. For example, the auxiliary system shown in the second embodiment may be configured by a system using a surveillance camera capable of personal authentication instead of an IC tag. It goes without saying that various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 IC tag 2 Carrying object 3 IC tag reader 4 Gate 5 Control device 6 2nd IC tag 7 Worker ID 8 Bulletin board 9 2nd IC tag reader 41 Human sensor 42 Surveillance camera 43 Turning-back prohibition area (run-through prohibition area)

Claims (7)

In the entrance / exit management system that manages the entry / exit of workers to / from specific areas,
An IC tag storing personal authentication information capable of identifying the worker;
A portable object to which the IC tag is attached and carried by the worker when entering and exiting;
An IC tag reader capable of reading the personal authentication information of the IC tag;
A gate that has the IC tag reader and is disposed on the entry path of the specific area;
A control device capable of receiving a read signal of the IC tag reader,
The gate is configured to be capable of simultaneous entry and exit both directions,
The control device recognizes that the IC tag reader has entered the specific area when the number of times the IC tag reader has read the personal authentication information of the IC tag is an odd number, and recognizes that the IC tag reader has left the specific area when the number is an even number. To
An entrance / exit management system.   The control device receives the next reading signal for a certain time after the reading signal continuously exceeds a certain time, when the reading signal continuously exceeds a certain number of times, or after receiving the reading signal. The entry / exit management system according to claim 1, wherein if it is not, the worker identified by the read signal recognizes that the worker has passed the gate.   A plurality of the gates are arranged, the IC tag reader and the gate have an identification number that can identify each individual, and the control device identifies the gate from which the reading signal is transmitted while identifying the gate of the operator. The entrance / exit management system according to claim 1, wherein entrance / exit is managed.   The gate has a human sensor and a monitoring camera connected to the control device, and the control device does not receive the read signal and receives a detection signal from the human sensor, The entrance / exit management system according to claim 1, wherein a surveillance camera is operated to capture an image of the vicinity of the gate.   The entrance / exit management system according to claim 1, wherein a turn-back prohibition area or a run-through prohibition area is set before and after the gate.   The entrance / exit management system according to claim 1, wherein the portable object is a helmet, and the IC tag is attached to a buttocks of the helmet.   A second IC tag storing personal authentication information capable of identifying the worker, a worker ID attached to the second IC tag and removed when the worker enters the entrance, and returned when leaving the worker, and arranged upstream of the gate. A bulletin board that can lock the worker ID, and a second IC tag reader that can read the personal authentication information stored in the second IC tag from the worker ID locked to the bulletin board. And the control device is configured to be able to receive a read signal of the second IC tag reader, and based on the read signals from the IC tag reader and the second IC tag reader, the operator enters and exits The entrance / exit management system according to claim 1, wherein: