JP2010281063A - System for managing entrance into/exit from room - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for managing entrance into/exit from a room, which enables the smooth entrance/exit of a user with a recording medium. <P>SOLUTION: A time from the time point of reading of an IC card 13 by a card reader 23 for the entrance into the room to the detection of an opened state of a door 11 is measured. In addition, an unlocking time Tu is set by a CPU 26 on the basis of a value which is obtained by adding a predetermined ratio R to the average value of measured time T<SB>m</SB>. When the IC card 13 is read by the card reader 23 for the entrance into the room, an electric lock 21 is unlocked only for unlocking time T<SB>u</SB>. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an entrance / exit management system that locks and unlocks an electric lock provided on a door in response to reading of a recording medium on which user authentication information is recorded.

  Conventionally, as a technology related to an entrance / exit management system for locking / unlocking an electric lock provided on a door in response to reading of a recording medium in which user authentication information is recorded, an entrance / exit control device shown in Patent Document 1 below is disclosed. It has been known. In the entrance / exit control device of Patent Document 1, two readers for user authentication and detection of moving speed are installed in front of an automatic door so as to be separated from each other. Based on the card information read by both readers, the user who is entering and leaving the room is authenticated, the moving speed of the user is measured from the difference in authentication time, and the automatic door is opened according to the moving speed. It is configured to determine the time and perform the unlocking process.

  In addition, the automatic door pinching prevention system shown in Patent Document 2 below opens a door when a person presses a touch switch, and detects that a person has passed through an entrance by an auxiliary switch and closes the door after a predetermined time. It is configured as follows. If the time to reach the entrance / exit after pressing the touch switch or the time staying at the entrance / exit is longer than the predetermined time, the person who pressed the touch switch is determined to be a weak person and the door open holding time is lengthened. ing.

JP 2006-152604 A JP-A-5-231065

  By the way, in an entrance / exit management system that unlocks an electric lock of a door that is manually opened and closed by causing a dedicated reader to read a recording medium on which authentication information and the like are recorded, the user may cause the reader to read the recording medium. When the user enters and leaves the room, the electric lock may not be unlocked and the door cannot be opened. Specifically, for example, when a subsequent user enters after a previous user, the previous user opens the door and enters the room, and then the subsequent use when the door is about to close. When the user reads the recording medium, the door may be closed before the subsequent user enters the room, and the electric lock may be automatically locked, and the latter user reads the recording medium again by the reader. There was a problem that the electric lock had to be unlocked.

  In addition, Patent Documents 1 and 2 adjust the opening time of the automatic door according to each user, and do not consider the door that is manually opened and closed. Subsequently, since no assumption is made about the case where a subsequent user enters or leaves the room, the above problem cannot be solved.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an entrance / exit management system capable of smoothly entering and exiting a user having a recording medium. is there.

  In order to achieve the above object, in the entrance / exit management system according to claim 1, the application of the electric lock provided on the door in response to the reading of the recording medium on which the user authentication information is recorded. In an entrance / exit management system for locking, a reading means capable of reading the recording medium, an open / closed state detecting means for detecting an open / closed state of the door, an unlocked state in which the electric lock is locked and the unlocked state is released Control means for controlling any of the states, measuring means for measuring the time from reading of the recording medium by the reading means to detection of the open state of the door by the open / closed state detecting means, and measurement by the measuring means Unlocking time setting means for setting the unlocking time of the electric lock according to the measured time, and the control means, when the recording medium is read by the reading means, Characterized by said electric lock the unlocked state by the unlocked time set by the time setting means.

  A second aspect of the present invention is the entrance / exit management system according to the first aspect, further comprising storage means for sequentially storing the measurement times measured by the measurement means, wherein the unlocking time setting means is controlled by the storage means. The unlocking time is set based on an average value of a plurality of stored measurement times.

  According to a third aspect of the present invention, in the entrance / exit management system according to the second aspect, when the measurement time measured by the measurement means changes by a predetermined value or more with respect to the average value, the measurement time Is not stored in the storage means.

  According to a fourth aspect of the present invention, in the entrance / exit management system according to the second or third aspect, the unlocking time setting means sets the unlocking time based on a value obtained by adding a predetermined ratio to the average value. It is characterized by that.

  According to a fifth aspect of the present invention, in the entrance / exit management system according to any one of the first to fourth aspects, the reading means is provided on both the entrance side and the exit side as the entrance side reading means and the exit side reading means. The unlocking time setting means sets the entrance side unlocking time as the unlocking time in accordance with the reading of the recording medium by the entrance side reading means, and the recording medium of the recording medium by the exit side reading means. The exit side unlocking time is set as the unlocking time according to reading.

  In the first aspect of the invention, the time from the reading of the recording medium by the reading means to the detection of the open state of the door by the open / close state detecting means is measured by the measuring means, and the unlocking time setting means is determined according to the measured time To set the unlocking time of the electric lock. When the recording medium is read by the reading means, the electric lock is unlocked by the control means for the unlocking time set by the unlocking time setting means.

  In this way, when the recording medium is read, the electric lock is unlocked for the set unlocking time, so the unlocked state of the electric lock can be maintained even after the door is closed from the open state. Can be maintained for a while. Therefore, for example, when a subsequent user enters the room following the previous user, even if the door opened by the previous user closes immediately after the subsequent user causes the reading means to read the recording medium Since the unlocked state of the electric lock is maintained for a while, the subsequent user can open the door and enter the room without having to read the recording medium again by the reading means. Therefore, the user having the recording medium can smoothly enter and leave the room.

  According to the second aspect of the present invention, there is provided storage means for sequentially storing the measurement times measured by the measurement means, and the unlocking time setting means unlocks based on the average value of the plurality of measurement times stored by the storage means. Configured to set the time. Thereby, the unlocking time can be set according to the environment of various installation sites and the like, without particularly limiting the distance between the reading means such as a card reader and the door.

  According to the third aspect of the present invention, when the measurement time measured by the measurement means changes by a predetermined value or more with respect to the average value, the measurement time is not stored in the storage means. Thereby, for example, when another user opens the door immediately after the previous user has read the recording medium, it is too short to assume that the previous user opened the door. Therefore, a more accurate average value can be obtained. In addition, when the user intentionally prevents the door from being closed in order to carry in or out the luggage, it is possible to eliminate the time during which the door is determined to be too long.

  In the invention of claim 4, the unlocking time is set by the unlocking time setting means based on a value obtained by adding a predetermined ratio to the average value. Therefore, for example, in an environment where many elderly people enter or leave the room or carry in and out of luggage frequently, the user can increase the predetermined ratio to be given and set the unlocked state of the electric lock longer. Can enter and leave the room. Further, when high security is required, the unlocking state of the electric lock can be set short by reducing the given ratio to be given. Therefore, the unlocking time can be appropriately set according to the convenience of the user and the required performance.

  In the invention of claim 5, the entrance side reading means is provided on the entrance side, and the exit side reading means is provided on the exit side. On the entrance side, the entrance side unlocking time is set according to the reading of the recording medium by the entrance side reading means, and on the exit side, the exit side unlocking time is set according to the reading of the recording medium by the exit side reading means. It is configured to be. As a result, even when the distance between the reading means such as a card reader and the door is different on the entrance side and the exit side, or when the environment at the installation site is different, the unlocking time is separately set on the entrance side and the exit side. Since it is set, the user can enter and leave the room more smoothly and the security can be further improved.

It is a top view which shows roughly the structure of the entrance / exit management system 20 which concerns on this 1st Embodiment. It is a block diagram of the entrance / exit management system 20 which concerns on this 1st Embodiment. It is a flowchart which illustrates the flow of the locking / unlocking process by CPU26 which concerns on this 1st Embodiment. It is a timing chart which shows an example of the locking / unlocking process by CPU26 which concerns on this 1st Embodiment. It is a part of flowchart which illustrates the flow of the locking / unlocking process by CPU26 which concerns on this 2nd Embodiment. It is a part of flowchart which illustrates the flow of the locking / unlocking process by CPU26 which concerns on this 2nd Embodiment.

Embodiments of an entrance / exit management system according to the present invention will be described below with reference to the drawings.
[First Embodiment]
In the first embodiment, as shown in FIGS. 1 and 2, a case where the entrance / exit management system 20 is adopted as an entrance / exit management system for the room 10 will be described as an example. The entrance / exit management system 20 includes an electric lock 21, a door opening / closing sensor 22, an entrance card reader 23, an exit card reader 24, and a control device 25. The entrance / exit of the room 10 in which the entrance / exit management system 20 is adopted is configured to be opened and closed by a door 11, and the door 11 is provided with a knob 12 for the user to open and close the door 11. It has been.

  On the inner wall of the room 10 near the door 11, an electric lock 21 and a door opening / closing sensor 22 are provided side by side. As the electric lock 21, for example, an electromagnetic electric lock that locks and unlocks the door 11 by operating an electromagnet inside the electric lock when energized can be used. The door open / close sensor 22 is configured to detect the open / closed state of the door 11 by any method such as electromagnetic or optical, and outputs an open state signal when the door 11 is open. When 11 is in a closed state, a closed state signal is output. The electric lock 21 and the door opening / closing sensor 22 may be provided inside the door 11 or may be appropriately changed according to the shape of the door 11 or the like. The door opening / closing sensor 22 corresponds to an example of “opening / closing state detecting means” described in the claims.

  An entrance card reader 23 is provided on the outer wall around the door 11 outside the room 10, and both the exit card reader 24 is placed on the inner wall around the door 11 in the room 10. A control device 25 electrically connected to the card readers 23 and 24 is provided. The entry card reader 23 and the exit card reader 24 are, for example, users recorded on the IC card 13 when a user brings a recording medium such as the IC card 13 into contact with or close to the card readers 23 and 24. And the read authentication information is input to the control device 25. The entry card reader 23 corresponds to an example of “reading means, entry side reading means” described in the claims, and the exit card reader 24 corresponds to “reading means, exit room” described in the claims. This corresponds to an example of “side reading means”.

  In addition to the card readers 23 and 24, the control device 25 is also electrically connected to the electric lock 21 and the door opening / closing sensor 22. The control device 25 includes a CPU 26, a memory 27, and the like, and is configured to control the entire entrance / exit management system 20. The CPU 26 performs control for locking / unlocking the electric lock 21 according to authentication information from both the card readers 23 and 24 and an open state signal or a closed state signal from the door opening / closing sensor 22 by executing a locking / unlocking process to be described later. I do. The memory 27 is configured to store a program for executing the locking / unlocking process, data related to the process, and the like. The CPU 26 corresponds to an example of “control unit” recited in the claims, and the memory 27 corresponds to an example of “storage unit” recited in the claims.

  Next, the locking / unlocking process by the CPU 26 will be described using the flowchart shown in FIG. 3 and the time chart shown in FIG. In the first embodiment, a case where the user enters the room 10 by causing the card reader 23 for reading the IC card 13 to read will be described as an example. In the first embodiment, it is assumed that the IC card 13 is not read by the leaving card reader 24.

  First, in step S101 of FIG. 3, it is determined whether or not the IC card 13 has been read by the card reader 23 for room entry. If there is no user entering the room and the IC card 13 is not read and authentication information is not input from the room card reader 23, the determination of No is repeated in step S101. At this time, if a reading error occurs such as the expiration date of the IC card 13 is expired, it is similarly determined No in step S101.

In such a state, when the time t ₁ shown in FIG. 4 elapses, the user (hereinafter referred to as the previous user) causes the IC card 13 to be read by the card reader 23 for entry, so that the CPU 26 receives authentication information. When input (Yes in S101), measurement processing is performed in step S103, and measurement of time from the time when the IC card 13 is read in step S101 is started. In step S105, the door opening / closing sensor 22 determines whether the door 11 is open. Time t ₁ in the door 11 shown in FIG. 4 since the closed state signal is inputted from the door opening-closing sensor 22 for a closed state (No in S105), the unlocking process is performed at step S107, the electric lock 21 Is unlocked.

Subsequently, in step S109, it is determined whether or not the unlocking time _Tu has elapsed since the measurement process was performed. Here, unlocking time T _u is the time for maintaining the door 11 to be set in step S121 to be described later in unlocked state, when it is determined that not yet elapsed unlocking time T _u is, In step S109, it is determined No. If the IC card 13 is not read by the entry card reader 23 (No in S111) and the door 11 is closed (No in S113), the determination of No is repeated in steps S109, S111, and S113. .

When such unlocking time in the repetition judgment in T _u has elapsed (Yes in S109), considers the previous user has interrupted to entry, locking process is performed in step S131, the electric lock 21 is locked The

  In addition, during the repeated determination as described above, another user moves the IC card 13 into the entry card reader 23 until the user who has read the IC card 13 into the entry card reader 23 opens the door 11. If read, it is determined Yes in step S111, and the processing from step S103 is performed.

Further, when the time t ₂ shown in FIG. 4 has elapsed in repetition determining in the above-described, door opening and closing sensor 22 by opening the door 11 by gripping the knob 12 to the previous user to enter the room 10 When an open state signal is input to the CPU 26 (Yes in S113), door open time measurement processing is performed in Step S115. In this process, the time from when the IC card 13 has been read in step S103 (hereinafter, referred to as the measurement time _{T m)} is measured. The CPU 26 that executes steps S103 and S115 corresponds to an example of a “measurement unit” recited in the claims. Further, the measurement time T _m corresponds to an example of “measurement time” recited in the claims.

Subsequently, in step S117, it is determined whether or not the measurement time _Tm is equal to or less than the threshold value _Tt . In the first embodiment, the threshold value T _t is set to a value of about 50% of the average value of each measurement time T _m stored in the memory 27 as will be described later. A value larger or smaller than about 50% of the average value may be set.

If the measurement time _Tm is not less than or equal to the threshold value _Tt (No in S117), door opening time storage processing is performed in step S119, and the measurement time _Tm is stored in the memory 27. Next, the unlocking time setting process is performed in step S121, and the unlocking time _Tu is set. The unlocking time T _u, the value obtained by adding a predetermined ratio R is used for sequentially storing values obtained by averaging the measured time T _m in the memory 27. In the first embodiment, for example, the ratio R is set to 0.5, unlocking time T _u is set to a value 1.5 is multiplied by the average of the measured time T _m values The Then, a locking process is performed in step S131, and the electric lock 21 is locked. The CPU 26 executing step S121 corresponds to an example of “unlocking time setting unit” recited in the claims.

In step S117 described above, if the measured time _{T m} is less than or equal to the threshold value _{T t} is determined as Yes, without treatment is carried out at step S119, S121 described above, locking process is performed at step S131 The Thereby, for example, when another user opens the door 11 immediately after the previous user causes the card reader 23 for reading the room to read the IC card 13, the previous user himself opens the door 11. Therefore, the measurement time T _m that is determined to be too short to be assumed is excluded.

Meanwhile, other users Following the previous user (hereinafter, later called user) when the to read the IC card 13 to the entry for the card reader 23 (at S101 Yes), the time t ₃ when 4 When the door 11 is kept open due to the previous user entering the room as in the state, it is determined Yes in step S105.

Subsequently, the determination of No is repeated in steps S123 and S125 until the IC card 13 is read or the door 11 is closed. When the door 11 opened by the previous user is automatically closed and a closed state signal is input from the door opening / closing sensor 22 (Yes in S125), the IC card 13 is read or unlocked from the start of the measurement process. until the time _{T u} elapses, repeats the determination of No in step S127, S129. Thus to unlock time T _u has elapsed, unlocked state of the door 11 without locking process is performed in step S131 is maintained.

Then, when the time t ₄ when FIG. 4 without the elapsed unlocking time T _u from the measurement process is passed in an iterative determination in the above-described, since the door 11 is unlocked, after the user In order to enter the room 10, the door 11 can be opened by holding the knob 12.

That is, since the unlocking state of the electric lock is maintained until the unlocking time _Tu has elapsed from the time when the subsequent user has read the IC card 13 by the card reader 23, the IC card Even if the door closes immediately before the user enters the room after reading the card reader 13 into the room 13, the door 11 is prevented from being immediately locked, so that the subsequent user again It is not necessary for the IC card 13 to be read by the entry card reader 23.

  In addition, if it determines with Yes in step S123 or step S127, it will be in the state in which another user enters into a room following a further user, the measurement process in step S103 is reset, and step S103 from again. The process is repeated.

When the unlocking time _{T u} has elapsed (Yes in S129), the locking processing is performed at step S131, the door 11 as the state of the time _{t 5} shown in FIG. 4 is an electric lock 21 if the closed state locking If the door 11 is open, the electric lock 21 is locked as soon as the door 11 is closed.

As described above, in the entrance / exit management system 20 according to the first embodiment, the time from when the IC card 13 is read by the entrance card reader 23 to when the open state of the door 11 is detected is measured. , unlocking time T _u is set according to the measured measurement time T _m. When the IC card 13 is read by entering a card reader 23, is configured to electrically lock 21 is unlocked by unlocking time T _u.

Thus, since the IC card 13 is the set by unlocking time T _u electric lock 21 unlocked state is read, the electric lock even after the door 11 is changed from the open state to the closed state 21 unlocked states can be maintained for a while. Therefore, for example, when a subsequent user enters the room following the previous user, the door 11 opened by the previous user immediately after the subsequent user causes the card reader 23 to read the IC card 13 is used. Even if the door is closed, the unlocked state of the electric lock 21 is maintained for a while, so that a later user can open the door and enter the room without having the IC card 13 read by the room card reader 23 again. it can. Therefore, the user having the IC card 13 can smoothly enter the room.

Also provided is a memory 27 for sequentially storing the measured time T _m measured by the CPU 26, based on the value obtained by adding a predetermined ratio R to the average of a plurality of measurement time stored T _m by the memory 27 unlocking time _{T u} is configured to be set by the CPU 26. Thereby, the unlocking time _Tu can be set according to the environment of various installation sites, etc., without the distance of the card reader 23 for entrance and the door 11 being specifically limited. In addition, for example, in an environment where many elderly people enter the room or carry in and out of luggage frequently, the predetermined ratio R to be applied is increased and the unlocked state of the electric lock 21 is set longer. Can enter the room safely. On the other hand, when high security is required, the unlocked state of the electric lock 21 can be set short by reducing the given ratio R to be applied. Therefore, the unlocking time _Tu can be appropriately set according to the convenience of the user and the required performance.

When the measured time T _m measured by the CPU26 is below the threshold value T _t is the measured time T _m is configured so as not to be stored in the memory 27. Thereby, for example, when another user opens the door immediately after the previous user causes the card reader 23 for reading the IC card 13 to read, it is assumed that the previous user himself opened the door 11. Therefore, the time determined to be too short is eliminated, so that a more accurate average value can be obtained.

  In the first embodiment, the case where the user enters the room by reading the IC card 13 by the entry card reader 23 has been described as an example. However, the user uses the IC card 13 as the exit card reader 24. Similarly, the entrance / exit management system 20 can be adopted when leaving the room after reading. In this case, by performing the unlocking process according to the reading of the IC card 13 by the leaving card reader 24, it is possible to set the unlocking time suitable for the environment on the leaving side.

[Second Embodiment]
Next, an entrance / exit management system according to a second embodiment of the present invention will be described with reference to the flowcharts shown in FIGS. The second embodiment is mainly different from the first embodiment in that the unlocking time is set separately on the entrance side and the exit side. The second embodiment has the same configuration as the entrance / exit management system 10 of the first embodiment shown in FIGS. 1 and 2 except that a part of the locking / unlocking process is different, and thus the description thereof is omitted. To do. In the second embodiment, the case where the user reads the IC card 13 into the room 10 by reading the room card reader 23 and the case where the user leaves the room 10 by reading the room card reader 24. Each example will be described in order.

First, a case where a user (hereinafter referred to as a previous user) causes the IC card 13 to be read by the room card reader 23 and enters the room 10 will be described first.
First, in steps S201 and S203 of FIG. 5, it is determined whether or not the IC card 13 has been read by the leaving card reader 24 or the entering card reader 23. At this time, if there is no user who leaves or enters the room and the IC card 13 is not read and authentication information is not input from the leaving card reader 24 or the entering card reader 23, the determination of No in Steps S201 and 203. Is repeated.
If it is determined that the IC card 13 has been read by the entry card reader 23 (Yes in S203), measurement processing is performed in step S205, and the IC card 13 is read by the entry card reader 23 in step S203. Time measurement from the time is started.

  Next, in step S207, the door opening / closing sensor 22 determines whether or not the door 11 is open. If it is determined that the door 11 is in the closed state (No in S207), the unlocking process is performed in Step S209, and the electric lock 21 is unlocked.

Subsequently, in step S211, it is determined whether or not the entrance side unlocking time _T1u has elapsed since the measurement process was performed. Here, the entrance side unlocking time _T1u is a time for maintaining the door 11 set in the unlocked state in step S225 described later, and it is determined that the entrance side unlocking time _T1u has not yet elapsed. If it does, it will determine with No in step S211. If the IC card 13 is not read by the exit card reader 24 and the entrance card reader 23 (No in S213 and S215) and the door 11 is closed (No in S217), steps S211, S213, and S215 are performed. The determination of No is repeated in S217.

When the entrance side unlocking time _T1u elapses during such repeated determination (Yes in S211), it is considered that the previous user has stopped entering the room, the locking process is performed in step S239, and the electric lock 21 is Locked.

  Further, during the repeated determination as described above, another user moves the IC card 13 to the exit card reader 24 until the user who has read the IC card 13 by the entrance card reader 23 opens the door 11. When it is read, it is determined as Yes in step S213, and the process from step S301 in FIG. 6 described later is performed. On the other hand, when another user reads the IC card 13 by the card reader 23 for entry, Yes in step S215. And the processing from step S205 is performed.

When the previous user opens the door 11 during the repeated determination as described above, it is determined Yes in step S217, and the door open time measurement process is performed in step S219 as in the above-described step S115. In this process, the time from when the IC card 13 is read by the entry card reader 23 (hereinafter referred to as measurement time T _{1 m} ) is measured.

Subsequently, in step S221, it is determined whether or not the measurement time T _1m is equal to or less than the threshold value T _1t . In the second embodiment, the threshold T _1t is set to, for example, about 50% of the average value of each measurement time T _1m stored in the memory 27 as will be described later. A value larger or smaller than about 50% of the average value may be set. Further, the threshold value T _1t may be the same value as or different from the threshold value T _2t on the exit side, which will be described later, and can be appropriately changed according to the environment on the entrance side.

When the measurement time T _1m is not equal to or less than the threshold T _1t (No in S221), the door opening time storage process is performed in Step S223, and the measurement time T _1m is stored in the memory 27, as in Step S119 described above. The In step S225, the entrance side unlocking time setting process is performed, and the entrance side unlocking time _T1u is set. For the entrance side unlocking time T _1u , a value obtained by adding a predetermined ratio R ₁ to a value obtained by averaging the measurement times T _1m sequentially stored in the memory 27 is used. This entrance side unlocking time _T1u is set according to the entrance side installation environment such as the distance between the entrance card reader 23 and the door 11 without being influenced by the exit side environment or the like.
In the second embodiment, as in the first embodiment, the ratio R ₁ is set to 0.5, and the entrance side unlocking time T _1u is a value obtained by averaging the measuring time T _1m. 1.5 is set to the multiplied value. The predetermined ratio R ₁ is not particularly limited, and may be the same as or different from the exit-side ratio R ₂ described later, and can be appropriately changed according to the environment on the entrance side. Then, a locking process is performed in step S239, and the electric lock 21 is locked.

In step S221 described above, if the measurement time T _1m is equal to or less than the threshold T _1t, it is determined as Yes, and the processing in steps S223 and S225 described above is not performed as in the first embodiment. In step S239, a locking process is performed.

  On the other hand, when another user (hereinafter referred to as a subsequent user) causes the IC card 13 to be read by the entrance card reader 23 following the previous user (Yes in S203), the door is opened by the previous user entering the room. When 11 remains open, it is determined as Yes in step S207 as in S105.

Subsequently, the IC card 13 of another user is read by the exit card reader 24 and the entrance card reader 23 (Yes in S227 and S229) or until the door 11 is closed (Yes in S231). The determination of No is repeated in S227, S229, and S231.
Then, during such repeated determination, when the door 11 opened by the previous user is automatically closed and the door 11 is closed (Yes in S231), another user's IC card 13 is moved out of the card reader. 24 or the entry card reader 23 (Yes in S233 and S235) or until the entry side unlocking time _T1u elapses from the start of the measurement process in step S205, No in steps S233, S235, and S237 The determination is repeated. As described above, similarly to the first embodiment, the unlocking state of the door 11 is maintained without performing the locking process in step S239 until the entrance side unlocking time _T1u elapses. When the entry side unlocking time _T1u elapses (Yes in S237), the electric lock 21 is locked in Step S239. Since the entrance side unlocking time T _1u is set without being influenced by the environment or the like on the exit side, even if the distance between the card readers 23 and 24 and the door 11 is different between the entrance side and the exit side. A value adapted to the installation environment on the entrance side is set.

  As in the first embodiment, when it is determined Yes in either step S229 or S235, another user enters the room after the subsequent user, and from step S205 described above, The process is repeated. If it is determined Yes in either step S227 or S233, another user exits after the subsequent user, and processing from step S301 in FIG. 6 described later is performed.

Next, a case where the user causes the leaving card reader 24 to read the IC card 13 and leaves the room 10 will be described.
If it is determined in step S201 in FIG. 5 that the IC card 13 has been read by the leaving card reader 24 (Yes in S201), measurement processing is performed in step S301 in FIG. In S201, measurement of time from the time when the IC card 13 is read by the leaving card reader 24 is started.

Next, when it is determined in step S303 that the door 11 is closed (No in S303), the unlocking process is performed in step S305, and the electric lock 21 is unlocked. Then, it is determined that the exit-side unlocking time _T2u has not elapsed since the measurement process was performed in step S307 (No in S307), and the IC card 13 is not read by the exit card reader 24 and the entrance card reader 23. (No in S309 and S311) When the door 11 is in the closed state (No in S313), the determination of No is repeated in steps S307, S309, S311, and S313.

If the exit-side unlocking time _T2u elapses during such repeated determination (Yes in S307), a locking process is performed in step S239. In addition, during the repeated determination as described above, another user moves the IC card 13 to the leaving card reader 24 until the user who has read the IC card 13 by the leaving card reader 24 opens the door 11. When it is read, it is determined as Yes in step S309, and the processing from step S301 is performed. On the other hand, when another user reads the IC card 13 by the card reader 23 for entrance, it is determined as Yes in step S311. The processing from step S205 in step 5 is performed.

When the previous user opens the door 11 during the repeated determination as described above (Yes in S313), the door opening time measurement process is performed in Step S315, and the IC card 13 is detected by the exit card reader 24. The time from the time of reading (hereinafter referred to as measurement time T _2m ) is measured.

Subsequently, in step S317, the measured time _{T 2m} is determined whether the following threshold _{T 2t.} The threshold value T _2t is set to a value of about 50% of the average value of the measurement time T _2m , similarly to the threshold value T _1t on the entrance side, but can be changed as appropriate according to the environment on the exit side. .

When the measurement time T _2m is not equal to or less than the threshold T _2t (No in S317), the door opening time storage process is performed in Step S319, and the measurement time T _2m is stored in the memory 27 as in Step S223. Then, leaving side unlocking time setting processing is performed at step S321, a value obtained by adding is set as exit side unlocking time T _2u the predetermined ratio R ₂ with respect to the average of the measured time T _2m value. This exit-side unlocking time _T2u is set according to the installation environment on the exit side such as the distance between the exit card reader 24 and the door 11 without being influenced by the entrance-side environment or the like. The predetermined ratio R _2, like the predetermined ratio R ₁ of the entry side and is set to 0.5, it can be changed according to the exit side of the environment and the like. Then, a locking process is performed in step S239, and the electric lock 21 is locked.

Further, when the measurement time T _2m is equal to or less than the threshold T _2t, it is determined as Yes, and similarly to the first embodiment, the process in steps S319 and S321 described above is not performed, and the process proceeds to step S239. The locking process is performed.

  On the other hand, when the subsequent user causes the IC card 13 to be read by the exit card reader 24 following the previous user (Yes in S201), the door 11 is kept open due to the previous user entering the room. Is determined as Yes in step S303.

Subsequently, the IC card 13 of another user is read by the exit card reader 24 and the entrance card reader 23 (Yes in S323 and S325) or until the door 11 is closed (Yes in S327). The determination of No is repeated in S323, S325, and S327.
During such repeated determination, when the door 11 opened by the previous user is automatically closed and the door 11 is closed (Yes in S327), the IC card 13 of another user is moved out of the card reader. 24 or the entry card reader 23 (Yes in S329 and S331) or until the exit-side unlocking time _T2u elapses from the start of the measurement process in Step S301, No in Steps S329, S331, and S333 The determination is repeated. Thus, the unlocking state of the door 11 is maintained without performing the locking process in step S239 until the exit-side unlocking time _T2u elapses. When the exit-side unlocking time T _2u elapses (Yes in S333), the electric lock 21 is locked in Step S239. Exit side unlocking time T _2u Since is set without being affected by the entry side of the environment, the distance between the card reader 24 and 23 and the door 11 at the exit side and the entrance side be different if each A value adapted to the installation environment on the exit side is set.

  In addition, when it determines with Yes in either step S323 or S329, it will be in the state from which another user leaves a subsequent user further, and the process from the above-mentioned step S301 is repeated. If it is determined Yes in either step S325 or S331, another user enters the room after the subsequent user, and the processing from step S205 in FIG. 5 is performed.

As described above, in the entrance / exit management system 20 according to the second embodiment, the entrance card reader 23 is provided on the entrance side, and the exit card reader 24 is provided on the exit side. The entrance side unlock time T _1u is set according to the reading of the IC card 13 by the entrance card reader 23 on the entrance side, and the exit is made according to the reading of the IC card 13 by the exit card reader 24 on the exit side. The side unlocking time _T2u is set. As a result, even when the distance between the card readers 23 and 24 and the door is different between the entrance side and the exit side, or when the environment of the installation site is different, the unlocking time is separately set on the entrance side and the exit side. Since it is set, the user can enter and leave the room more smoothly and the security can be further improved.

The present invention is not limited to the above embodiments, and may be embodied as follows. Even in this case, the same operations and effects as those of the above embodiments can be obtained.
(1) In the first embodiment, the measurement time T _m to be measured in step S115, if it is more than the threshold value the open state of the door 11 is determined to be clearly too long, so as not stored in the memory 27 May be. Similarly, in the second embodiment, when the values of the measurement times T _1m and T _2m measured in steps S219 and S315 are as described above, they may not be stored in the memory 27. .

(2) In the first embodiment, the unlocking time T _u set in step S121 is not limited to being set based on the average value of the plurality of stored measurement times T _m , and this measurement time A value obtained by multiplying the standard deviation of _Tm by a predetermined value may be used. In this case, it is possible to flexibly cope with a large fluctuation immediately after system operation. Similarly in the second embodiment, the standard deviation of the measurement times T _1m and T _2m is included in the entrance side unlocking time T _1u and the exit side unlocking time T _2u set in steps S225 and S321, respectively. A value obtained by multiplying a predetermined value may be used.

10 ... Room 11 ... Door 13 ... IC card (recording medium)
20 ... Entrance / exit management system 21 ... Electric lock 22 ... Door open / close sensor (open / close state detection means)
23... Card reader for entry (reading means, entrance reading means)
24 ... Exit card reader (reading means, exit side reading means)
25 ... Control device (control means)
26 ... CPU (measuring means, unlocking time setting means)
27 ... Memory (storage means)

Claims (5)

In the entrance / exit management system that locks and unlocks the electric lock provided on the door according to the reading of the recording medium in which the user authentication information is recorded,
Reading means capable of reading the recording medium;
Open / closed state detecting means for detecting the open / closed state of the door;
Control means for controlling the electric lock to either a locked state or an unlocked state in which the locked state is released;
Measuring means for measuring a time from reading of the recording medium by the reading means to detection of the open state of the door by the open / closed state detecting means;
Unlocking time setting means for setting the unlocking time of the electric lock according to the measurement time measured by the measuring means,
When the recording medium is read by the reading means, the control means places the electric lock in an unlocked state for the unlocking time set by the unlocking time setting means. . Storage means for sequentially storing the measurement times measured by the measurement means;
The entrance / exit management system according to claim 1, wherein the unlocking time setting unit sets the unlocking time based on an average value of the plurality of measurement times stored by the storage unit.   3. The input according to claim 2, wherein when the measurement time measured by the measurement unit changes by a predetermined value or more with respect to the average value, the measurement time is not stored in the storage unit. Exit management system.   The entrance / exit management system according to claim 2 or 3, wherein the unlocking time setting means sets the unlocking time based on a value obtained by adding a predetermined ratio to the average value. The reading means is provided on both the entrance side and the exit side as the entrance side reading means and the exit side reading means,
The unlocking time setting means sets the entrance-side unlocking time as the unlocking time in accordance with the reading of the recording medium by the entrance-side reading means, and allows the recording medium to be read by the exit-side reading means. The entrance / exit management system according to claim 1, wherein an exit side unlocking time is set as the unlocking time accordingly.

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