Door device, access control method, and storage medium

Abstract

The system provides a door device, an access control method, and a storage medium to effectively suppress the frequency of door deformation due to external forces applied while the door is locked. A determination unit determines whether passage of a user into the passage is permitted. A door opening / closing control unit controls the opening and closing of the door installed in the passage based on the determination result of the determination unit. A speed detection unit detects the user's moving speed. A locking control unit controls the locking mechanism to switch between a locked state (preventing the door from transitioning from a closed to an open state due to external forces) and an unlocked state. When the user's moving speed detected by the speed detection unit exceeds a predetermined first speed, the locking control unit controls the locking mechanism to an unlocked state.

Description

Technical Field

[0001] This invention relates to a technique for restricting the passage of a user in a passage by opening and closing a door installed in the passage. Background Technology

[0002] In the past, various places such as station ticket gates and entrances and exits of facilities (theme parks, office buildings, security areas, etc.) have used door devices to restrict the passage of users in a passage by opening and closing the doors installed in the passage.

[0003] For example, at a station's ticket gates, automatic ticket gates (door devices) are used to process tickets for users entering and exiting the station. As is well known, automatic ticket gates accept tickets held by users passing through the ticket gate area and read the ticket information recorded on those tickets. Based on the ticket information read, the automatic ticket gates determine whether the user is allowed to pass through the ticket gate area and then open or close the gates to restrict the user's passage.

[0004] In addition, recently, there have been automatic ticket checking machines that use facial recognition, fingerprint recognition, and other methods to identify users and determine whether to allow them to pass through the ticket checking channel.

[0005] Sometimes, a locking mechanism is provided at the automatic ticket gate to prevent the illegal passage of users who are deemed not to be allowed to pass through the passage by preventing the gate from changing from a closed state to an open state due to external force (for example, see Patent Document 1).

[0006] Patent Document 1: Japanese Patent Application Publication No. 2020-80109 Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] The automatic ticket checking mechanism in Patent Document 1 releases the locking mechanism from locking the door if it detects that an external force exceeding a certain level has been applied to the closed door. In other words, the automatic ticket checking machine in Patent Document 1 does not have a structure that prevents a large external force from being applied to the locked door. Therefore, the automatic ticket checking machine in Patent Document 1 may deform the door due to an external force applied while it is locked.

[0009] The purpose of this invention is to provide a technique that can effectively suppress the deformation of a door due to external forces applied when it is closed.

[0010] Methods for solving problems

[0011] To achieve the above objectives, the door device of the present invention is configured as shown below.

[0012] The door device of the present invention can be used, for example, as an automatic ticket gate installed at a station ticket gate, or as an access door (including a security door) installed at the entrance or exit of a facility (theme park, office building, security area, etc.).

[0013] The determination unit determines whether passage of a user into the passage is permitted. The door opening / closing control unit controls the opening and closing of the doors installed in the passage based on the determination result of the determination unit. The locking control unit controls the state of the locking mechanism. The locking control unit controls the switching of the locking mechanism between a locked state and an unlocked state, wherein the locked state prevents the door from moving from a closed state to an open state due to external force, and the unlocked state does not prevent the door from moving from a closed state to an open state due to external force. The speed detection unit detects the user's moving speed. Furthermore, when the user's moving speed detected by the speed detection unit exceeds a predetermined first speed, the locking control unit controls the locking mechanism to the unlocked state.

[0014] In this structure, when there is a high probability that the user will collide with the closed door, the door can be unlocked (becoming unlocked). Therefore, for example, even if the user cannot stop in front of the closed door and collides with it, the magnitude of the external force applied to the door due to the user's collision can be suppressed because the user has unlocked the door before the collision. Thus, deformation of the door due to the applied external force can be sufficiently suppressed.

[0015] In addition, the user's speed can be detected by a structure that obtains the user's moving speed based on the change in distance to the user detected by a ranging sensor, or by a structure that obtains the user's moving speed based on the change in the user's position detected by multiple user detection sensors arranged along the user's passage direction in the path, or other structures.

[0016] For example, in a structure using a ranging sensor, the user's movement speed can be obtained before the user enters the passage, enabling smooth control of unlocking and de-locking based on the locking state of the locking control unit. Furthermore, if a structure using multiple user detection sensors arranged along the user's passage direction is employed, the user's movement speed can be obtained using the existing structure. Therefore, by modifying the control software, it can be applied to existing door devices, reducing the cost of system construction. Additionally, user movement speed detection can be performed using structures employing millimeter-wave radar, ultrasonic sensors, infrared sensors, or TOF (Time of Flight) cameras, or it can be achieved through image processing.

[0017] Alternatively, the door opening and closing control unit can be configured such that if the user's moving speed detected by the speed detection unit exceeds a second speed higher than the first speed, the door provided in the passageway is opened. With such a structure, the frequency of collisions between the user and the door can be further reduced, thus further suppressing door deformation.

[0018] Alternatively, for example, the door opening and closing control unit may be configured such that if the user's moving speed detected by the speed detection unit exceeds a second speed higher than the first speed, the door provided in the passageway will be opened after the distance between the user and the door in the closed state reaches a set distance.

[0019] In addition, the door can be located either in the center of the entrance and exit of the passageway or on the exit side of the passageway for users.

[0020] Invention Effects

[0021] According to the present invention, the frequency of door deformation due to external force applied when the door is closed can be sufficiently suppressed. Attached Figure Description

[0022] Figure 1 middle, Figure 1 (A) is a schematic view of the automatic ticket gate in this example. Figure 1 (B) is Figure 1 The plan view shown is along direction A.

[0023] Figure 2 This is a block diagram showing the structure of the main parts of the automatic ticket gate in this example.

[0024] Figure 3 This is a flowchart illustrating the ticket checking process of the automatic ticket checking machine in this example.

[0025] Figure 4 This is a flowchart illustrating the ticket checking process of an automatic ticket checking machine, as shown in Variation Example 1.

[0026] Figure 5 This is a flowchart illustrating the ticket checking process of an automatic ticket checking machine, as shown in Variation Example 2.

[0027] Figure 6 This is a flowchart illustrating the ticket checking process of an automatic ticket checking machine, as shown in Variation Example 3.

[0028] Label Explanation

[0029] 1: Automatic ticket gate; 2 (2a, 2b): Door; 3 (3a, 3b): Antenna; 5 (5a, 5b): Distance sensor; 11: Control unit; 12: Ticket processing unit; 13: Display unit; 14: Distance measuring unit; 15: User detection unit; 16: Door opening and closing mechanism unit; 17: Locking mechanism unit; 18: Communication unit; 21: Passage determination unit; 22: Door opening and closing control unit; 23: Locking control unit; 24: Speed ​​detection unit. Detailed Implementation

[0030] The embodiments of the present invention will be described below.

[0031] <1. Application Examples>

[0032] Figure 1 (A) is a schematic view of the automatic ticket gate in this example. Figure 1 (B) is Figure 1 The plan view shown is in direction A. In this example, the automatic ticket gate 1 corresponds to the gate device of the present invention. The automatic ticket gate 1 checks tickets for at least one of the users entering the station or exiting the station. For example, in Figure 1 Direction A shown is the direction for entering the station. Figure 1 When direction B is the direction of exiting the station, the user of automatic ticket gate 1 can travel in the ticket gate passage in only direction A, only direction B, or both directions A and B.

[0033] The automatic ticket gate 1 reads the ticket information provided by the user and determines whether the user is allowed to pass through the passageway based on the read ticket information. The ticket can be a magnetic ticket with a magnetic strip attached, a contactless IC card with wireless communication capabilities, or an optically readable ticket with a two-dimensional barcode (e.g., a QR code (registered trademark)) printed on it. Since these types of tickets are already well-known, they will not be described here.

[0034] In this example, for simplicity, the structure of the automatic ticket gate 1 accepting contactless IC cards as tickets will be described. However, the automatic ticket gate 1 may also accept magnetic tickets or optically readable tickets as tickets, or it may accept any two or more of contactless IC cards, magnetic tickets, and optically readable tickets as tickets.

[0035] In this example, the automatic ticket gate 1 has antennas 3 (3a, 3b) installed on both sides of the ticket gate passage. The automatic ticket gate 1 wirelessly communicates with the contactless IC card covered by the antennas 3, reading and writing ticket information recorded in the contactless IC card. Figure 1In the process, users entering the station place their contactless IC card on antenna 3a, and users exiting the station place their contactless IC card on antenna 3b.

[0036] Furthermore, if the user's direction of travel in the ticket check passage is one direction, one antenna 3 (3a or 3b) may not be installed.

[0037] The automatic ticket gate 1 determines whether to allow a user to pass through the ticket gate based on ticket information read from the user's contactless IC card covered by the antenna 3. Additionally, the automatic ticket gate 1 calculates the user's moving speed based on changes in the user's position over time detected by the ranging sensor 5. The position of the user entering the station is determined by... Figure 1 The distance sensor 5a shown detects the location of the user exiting the station from within the station. Figure 1 The ranging sensor 5b shown is used for detection.

[0038] Furthermore, if the user's movement direction in the ticket checking path is only one direction, the distance measuring sensor 5 (5a or 5b) may not need to be installed on one side. Additionally, the installation location of the distance measuring sensor 5 is not limited to... Figure 1 The location shown can be any location, as long as the distance to the user can be measured.

[0039] When the automatic ticket gate 1 determines that the user is permitted to pass through the ticket gate, it opens doors 2 (2a, 2b). Conversely, when the automatic ticket gate 1 determines that the user is not permitted to pass through the ticket gate, it closes doors 2 (2a, 2b). Figure 1 This indicates that door 2 is closed.

[0040] Furthermore, when the automatic ticket gate 1 closes the door 2, it controls the locking mechanism to a locked state that prevents the door 2 from transitioning from a closed state to an open state due to external force. The locking mechanism is a mechanism that physically restricts the rotation of the door 2. For example, the locking mechanism is a structure that uses an actuator such as a solenoid to move a locking member (e.g., a stop) between a position that prevents the rotation of the door 2's axis of rotation (locked position) and a position that does not prevent the rotation of the door 2's axis of rotation (unlocked position). The locking mechanism can be, for example, the structure disclosed in Patent Document 1, or other known structures. Alternatively, the locking mechanism can also be a structure without an actuator. Various structures of the locking mechanism are known, therefore, descriptions are omitted here.

[0041] When the automatic ticket gate 1 determines that it will not allow a user to pass through the ticket gate, it detects the user's moving speed. If the user's moving speed exceeds a predetermined first speed, the automatic ticket gate 1 sets the locking mechanism to an unlocked state. In this case, even though the automatic ticket gate 1 sets the locking mechanism to an unlocked state, it does not allow the door 2 to move to the open state. In addition, the first speed can be set, for example, as a lower limit of the speed at which a collision is predicted to occur because the user cannot stop in front of the closed door 2 (not necessarily meaning that a collision will occur).

[0042] In this way, when the automatic ticket gate 1 anticipates a user who is deemed not permitted to pass through the ticket gate and collides with the closed door 2, it sets the locking mechanism to an unlocked state. Therefore, even if the user collides with the door 2, the impact can be mitigated. Furthermore, even when the automatic ticket gate 1 sets the locking mechanism to an unlocked state, it does not allow the door 2 to move into the open state, thus allowing the user to recognize that the door 2 is closed. Consequently, the user intends to stop and slow down near the door 2, thus suppressing the impact force exerted by the user colliding with the door 2. Therefore, the automatic ticket gate 1 in this example can effectively suppress the deformation of the door 2 due to external forces applied when it is in the closed state.

[0043] <2. Structural Example>

[0044] Figure 2 This is a block diagram showing the structure of the main parts of the automatic ticket gate in this example. The automatic ticket gate 1 in this example includes a control unit 11, a ticket processing unit 12, a display unit 13, a distance measuring unit 14, a user detection unit 15, a door opening and closing mechanism unit 16, a locking mechanism unit 17, and a communication unit 18.

[0045] The control unit 11 controls the operation of each part of the main body of the automatic ticket gate 1. Furthermore, the control unit 11 includes a passage determination unit 21, a door opening and closing control unit 22, a locking control unit 23, and a speed detection unit 24. The passage determination unit 21, door opening and closing control unit 22, locking control unit 23, and speed detection unit 24 of the control unit 11 will be described later.

[0046] The ticket processing unit 12 has antennas 3 (3a, 3b) and reads and writes ticket information recorded in the contactless IC card by wireless communication with the contactless IC card covered by the antennas 3.

[0047] The display unit 13 has a display (not shown) that displays a guide display for the user according to instructions from the control unit 11.

[0048] The ranging unit 14 includes the aforementioned ranging sensors 5 (5a, 5b). The ranging unit 14 inputs the distance between itself and the user (the distance between the ranging sensor 5 and the user) measured by the ranging sensor 5 at fixed time intervals as measurement data to the control unit 11.

[0049] The user detection unit 15 has multiple photoelectric sensors arranged along the ticket checking path. The position of a user moving through the ticket checking path is detected based on the detection output of each photoelectric sensor, thereby tracking the user moving through the ticket checking path. The photoelectric sensors can be reflective or transmissive (a type where a light-emitting element and a light-receiving element are arranged opposite each other across the ticket checking path).

[0050] The door opening and closing mechanism 16 opens and closes the door 2 located in the ticket checking passage according to the instructions of the control unit 11.

[0051] As described above, the locking mechanism 17 is a mechanism that prevents the door 2, which is located in the ticket gate passage, from moving from the closed state to the open state due to external force when the door 2 is in the closed state. The locking mechanism 17 switches between a locked state (the state that prevents the door 2 from moving from the closed state to the open state due to external force) and an unlocked state (the state that does not prevent the door 2 from moving from the closed state to the open state due to external force) according to the instruction from the control unit 11.

[0052] The communication unit 18 communicates with higher-level devices such as the station server. The communication unit 18 can be configured to communicate with higher-level devices wirelessly or via wired connections.

[0053] Next, the passage determination unit 21, door opening and closing control unit 22, locking control unit 23 and speed detection unit 24 of the control unit 11 will be described.

[0054] Based on the ticket information read from the contactless IC card by the ticket processing unit 12, the passage determination unit 21 determines whether a user who has placed the contactless IC card on the antenna 3 (3a, 3b) can pass through the ticket gate. If the passage determination unit 21 determines that passage is permitted, it instructs the ticket processing unit 12 to write the ticket information involved in this ticket gate process to the contactless IC card that has read the ticket information. If the writing of the ticket information involved in this ticket gate process to the contactless IC card that has read the ticket information is completed, the passage determination unit 21 allows the user to pass through the ticket gate. In other words, if the writing of the ticket information involved in this ticket gate process to the contactless IC card that has read the ticket information fails (a write error has occurred), the passage determination unit 21 does not allow the user to pass through the ticket gate.

[0055] When the passage determination unit 21 determines that the user is permitted to pass through the ticket gate, the door opening and closing control unit 22 instructs the door opening and closing mechanism 16 to open the door 2. Conversely, when the passage determination unit 21 determines that the user is not permitted to pass through the ticket gate, the door opening and closing control unit 22 instructs the door opening and closing mechanism 16 to close the door 2.

[0056] Furthermore, when the door opening / closing mechanism 16 receives an opening instruction from the door opening / closing control 22 and the door 2 is already in the open state, it will not perform the opening / closing action of the door 2 (it will not close the door 2 before opening it). Similarly, when the door opening / closing mechanism 16 receives a closing instruction from the door opening / closing control 22 and the door 2 is already in the closed state, it will not perform the opening / closing action of the door 2 (it will not open the door 2 before closing it).

[0057] The locking control unit 23 instructs the locking mechanism unit 17 to switch between locked and unlocked states.

[0058] Furthermore, when the locking mechanism 17 receives a switching instruction to the locked state from the locking control 23, if it is already in the locked state, it does not take any action specifically for that instruction (it will not first set the device to the unlocked state and then set it to the locked state). Similarly, when the locking mechanism 17 receives a switching instruction to the unlocked state from the locking control 23, if it is already in the unlocked state, it does not take any action specifically for that instruction (it will not first set the device to the locked state and then set it to the unlocked state).

[0059] The speed detection unit 24 detects (calculates) the user's moving speed based on the change in distance between the distance measuring sensors (5a, 5b) and the user measured at fixed time intervals in the distance measuring unit 14.

[0060] The control unit 11 of the automatic ticket gate 1 consists of a hardware CPU, a memory, and other electronic circuits. When the hardware CPU executes the access control program of the present invention, it operates as the access determination unit 21, the door opening / closing control unit 22, the locking control unit 23, and the speed detection unit 24. The memory includes a region for expanding the access control program of the present invention and a region for temporarily storing data generated during the execution of the access control program. Furthermore, the memory includes a storage region for storing the first speed, the second speed, and the set distance (described later). The control unit 11 may also be an LSI that integrates the hardware CPU, memory, etc. The hardware CPU is a computer that executes the access control method of the present invention.

[0061] <3. Example of an action>

[0062] Figure 3 This is a flowchart illustrating the ticket checking process of the automatic ticket checking machine in this example.

[0063] When a user enters the ticket gate, the automatic ticket gate 1 determines in the ticket processing unit 12 whether it has read ticket information from the user's contactless IC card (s1, s2). The detection of whether a user has entered the ticket gate can be performed by a photoelectric sensor in the user detection unit 15. If the automatic ticket gate 1 does not read ticket information from the contactless IC card of the user entering the ticket gate, it executes the processing described later in s7 and beyond.

[0064] Furthermore, the ticket processing unit 12 sometimes reads ticket information from the contactless IC card before the user enters the ticket gate, and sometimes reads ticket information from the contactless IC card after the user enters the ticket gate. The timing of the ticket processing unit 12 reading ticket information from the contactless IC card is determined by the timing when the user places the contactless IC card on the antenna 3.

[0065] If the automatic ticket gate 1 reads ticket information from the contactless IC card held by a user entering the ticket gate, it performs a passage determination process (s3) based on the read ticket information to determine whether the user is allowed to pass through the ticket gate. In s3, the passage determination unit 21 determines whether the user can pass through the ticket gate based on the ticket information read from the contactless IC card. If the passage determination unit 21 determines that the user can pass through the ticket gate, it instructs the ticket processing unit 12 to write the ticket information involved in this ticket gate process to the contactless IC card that read the ticket information. When the writing of the ticket information involved in this ticket gate process to the contactless IC card that read the ticket information is completed, the passage determination unit 21 determines that the user is allowed to pass through the ticket gate. In other words, if the writing of the ticket information involved in this ticket gate process to the contactless IC card that read the ticket information fails, the passage determination unit 21 does not determine that the user is allowed to pass through the ticket gate.

[0066] In addition, the determination of whether or not passage is permitted based on ticket information is made according to the validity period, valid range, presence or absence of cyclical errors, and whether freight settlement can be carried out.

[0067] When the automatic ticket gate 1 determines that the user is permitted to pass through the ticket gate, the locking control unit 23 instructs the locking mechanism unit 17 to transition to the unlocked state (s4, s5). Meanwhile, the door opening / closing control unit 22 instructs the door opening / closing mechanism unit 16 to open the door 2 (s6), returning to s1.

[0068] Furthermore, if the automatic ticket gate 1 determines that it does not allow the user to pass through the ticket gate, the door opening and closing control unit 22 instructs the door opening and closing mechanism unit 16 to close the door 2 (s4, s7). Then, the locking control unit 23 instructs the locking mechanism unit 17 to transition to the locked state (s8). In addition, the speed detection unit 24 detects (calculates) the user's moving speed based on the change in distance to the user over time, as measured by the distance sensor 5 (s9). The user's moving speed detected in s9 can be the speed just before the user enters the ticket gate, or the speed immediately after the user enters the ticket gate.

[0069] The locking control unit 23 determines whether the user's moving speed, calculated in s9, exceeds a predetermined first speed (s10). This first speed is, for example, a lower limit of the speed at which a collision is predicted to occur because the user cannot stop in front of the closed door 2 (not necessarily meaning a collision will happen). This first speed is stored in the memory of the control unit 11.

[0070] If the user's movement speed calculated in s9 does not exceed the first speed, the locking control unit 23 returns to s1. Alternatively, if the user's movement speed calculated in s9 exceeds the first speed, the locking control unit 23 instructs the locking mechanism unit 17 to transition to the unlocked state (s11) and returns to s1.

[0071] In this example, when there is a high probability that a user entering the ticket gate will collide with the closed door 2, the automatic ticket gate 1 will move the locking mechanism 17 to the unlocked state. Therefore, even if the user collides with the closed door 2, the impact can be mitigated. Furthermore, even if the automatic ticket gate 1 sets the locking mechanism to the unlocked state, it will not cause the door 2 to move to the open state, thus allowing the user to recognize that the door 2 is closed before a collision. As a result, the user will want to stop and slow down near the door 2, thus suppressing the impact force exerted by the user colliding with the door 2. Therefore, the automatic ticket gate 1 in this example can effectively suppress the deformation of the door 2 due to external forces applied when it is in the closed state.

[0072] Furthermore, as described above, the automatic ticket gate 1 in the above example is an example of a structure that accepts contactless IC cards as tickets, but it can also be a structure that accepts magnetic tickets or optically readable tickets as tickets, or it can be a structure that accepts any two or more types of contactless IC cards, magnetic tickets and optically readable tickets as tickets.

[0073] Alternatively, the automatic ticket gate 1 can also be a structure that identifies the user through facial recognition, fingerprint recognition, etc., and determines whether the user is allowed to pass through the ticket gate.

[0074] <4. Variations>

[0075] • Variation Example 1

[0076] The automatic ticket checking machine 1 in this variation 1 is as described above. Figure 1 , Figure 2 The structure shown. Figure 4 This is a flowchart illustrating the ticket checking process of the automatic ticket checking machine in Variation Example 1. Figure 4 In the middle, to and Figure 3 The same processing steps are labeled with the same step numbers.

[0077] The automatic ticket checker 1 in this variation 1 performs the processes s1 to s7 in the same way as in the example above.

[0078] In the automatic ticket gate 1 of this variation 1, if the door opening and closing control unit 22 instructs the door opening and closing mechanism unit 16 to close the door 2 in s7, the speed detection unit 24 detects (calculates) the user's moving speed (s21) based on the change in distance to the user over time as measured by the distance sensor 5. The processing involved in s21 is the same as that in s9 of the above example.

[0079] The locking control unit 23 determines whether the user's moving speed calculated in s21 exceeds a predetermined first speed (s22). If the user's moving speed calculated in s21 does not exceed the first speed, the locking control unit 23 instructs the locking mechanism unit 17 to transition to the locked state (s24) and returns to s1. Conversely, if the user's moving speed calculated in s21 exceeds the first speed, the locking control unit 23 instructs the locking mechanism unit 17 to transition to the unlocked state (s23) and returns to s1.

[0080] In this modified example 1, the frequency of switching between the locked and unlocked states of the locking mechanism 17 can be suppressed, thus enabling the long lifespan of the locking mechanism 17.

[0081] • Variation Example 2

[0082] The automatic ticket gate 1 in this variation 2 is also as described above. Figure 1 , Figure 2 The structure shown. Figure 5 This is a flowchart illustrating the ticket checking process of the automatic ticket checking machine in Variation Example 2. Figure 5 In the middle, to and Figure 3 The same processing steps are labeled with the same step numbers.

[0083] The automatic ticket gate 1 in this modified example 1 performs the processes s1 to s11 in the same way as the example described above. In the automatic ticket gate 1 of this modified example 2, if the locking control unit 23 instructs the locking mechanism unit 17 to transition to the unlocked state in s11, the door opening and closing control unit 22 determines whether the user's moving speed calculated in s9 exceeds a predetermined second speed (s31). This second speed is higher than the first speed. This second speed is also stored in the memory of the control unit 11 in the same way as the first speed.

[0084] If the user's moving speed calculated in s9 does not exceed the second speed, the door opening and closing control unit 22 returns to s1. Alternatively, if the user's moving speed calculated in s9 exceeds the second speed, the door opening and closing control unit 22 instructs the door opening and closing mechanism unit 16 to open the door 2 (s32) and returns to s1.

[0085] In this modified example 2, the frequency of collisions between the user and the closed door 2 can be reduced, thus further suppressing the deformation of the door 2.

[0086] • Variation Example 3

[0087] The automatic ticket gate 1 in this variation 3 is also as described above. Figure 1 , Figure 2 The structure shown. Figure 6 This is a flowchart illustrating the ticket checking process of the automatic ticket checking machine in Variation Example 3. Figure 6 In the middle, to and Figure 5 The same processing steps are labeled with the same step numbers.

[0088] In the automatic ticket gate 1 of this Modification 3, if the door opening / closing control unit 22 determines in s31 that the user's moving speed exceeds a predetermined second speed, it waits until the distance between the user and the closed door 2 reaches a set distance (s41) before instructing the door opening / closing mechanism 16 to open the door 2 (s32). That is, the processing in s41 differs from that of the automatic ticket gate 1 of Modification 2. In this Modification 3, similar to Modification 2, not only is the frequency of collisions between the user and the closed door 2 reduced, but the user is also made aware that the door 2 is closed.

[0089] • Variation Example 4

[0090] In the example above, the user's speed is detected based on the change in the user's position measured by the distance sensor 5. However, the user's speed can also be detected based on the change in the user's position detected by multiple photoelectric sensors arranged along the passageway of the ticket checking path, which are included in the user detection unit 15. In this case, the distance measuring unit 14, which includes the distance sensor 5, is not required, thus simplifying the structure of the automatic ticket checking machine 1.

[0091] Furthermore, this can be achieved by modifying the control software of existing automatic ticket gates, thus reducing the cost of building the system.

[0092] In addition, the detection of the user's movement speed can be achieved using structures such as millimeter-wave radar, ultrasonic sensors, infrared sensors, or TOF (Time of Flight) cameras, or it can be replaced by a structure that performs the detection through image processing.

[0093] In addition, in the above example, the automatic ticket gate 1 of the type (central baffle type) that sets the door 2, which closes when users are not allowed to pass through the passage, in the general center of the passage was described as an example, but the door 2 can be set at both ends of the passage or at one end.

[0094] Furthermore, in the above example, the application of this invention to an automatic ticket gate installed at a station was described. However, this invention can be applied to various door devices installed at entrances and exits of facilities (theme parks, office buildings, security areas, etc.) that restrict the passage of users in a passageway. That is, the scope of application of this invention is not limited to the automatic ticket gate 1 in the above example, but can be applied to all door devices used in various places that restrict the passage of users in a passageway.

[0095] Furthermore, the present invention is not limited to the embodiments described above, and can be embodied by modifying the constituent elements without departing from its spirit during the implementation phase. Additionally, various inventions can be formed by appropriately combining the multiple constituent elements disclosed in the above embodiments. For example, several constituent elements may be deleted from all the constituent elements shown in the embodiments. Furthermore, constituent elements from different embodiments may be appropriately combined.

[0096] Furthermore, the correspondence between the structure of the present invention and the structure of the above-described embodiments can be described as follows in the appendix.

[0097] <Postscript>

[0098] A door device (1) comprising:

[0099] The determination unit (21) determines whether to allow the user to enter the passage;

[0100] The door opening and closing control unit (22) controls the opening and closing of the doors (2a, 2b) provided in the passage according to the determination result of the determination unit (21);

[0101] The locking control unit (23) controls the locking mechanism unit (17) to switch between a locked state that prevents the doors (2a, 2b) from moving from a closed state to an open state due to external force, and an unlocked state that does not prevent the doors (2a, 2b) from moving from a closed state to an open state due to external force; and

[0102] The speed detection unit (24) detects the user's moving speed.

[0103] When the user's moving speed detected by the speed detection unit (24) exceeds a predetermined first speed, the locking control unit (23) controls the locking mechanism unit (17) to be in an unlocked state.

Claims

1. A door device comprising: a determination section that determines whether or not to permit passage of a user of an access passage; a door opening / closing control section that controls opening / closing of a door provided in the access passage in accordance with a result of determination by the determination section; a lock control section that controls a lock mechanism section to switch between a locked state in which the door is prevented from moving from a closed state to an open state due to an external force, and an unlocked state in which the door is not prevented from moving from the closed state to the open state due to the external force; and a speed detection section that detects a moving speed of the user, wherein the lock control section controls the lock mechanism section to the unlocked state when the moving speed of the user detected by the speed detection section exceeds a first speed decided in advance, and wherein the door opening / closing control section opens the door provided in the access passage if the moving speed of the user detected by the speed detection section exceeds a second speed higher than the first speed, or the door opening / closing control section opens the door provided in the access passage after a distance between the user and the door in the closed state reaches a set distance if the moving speed of the user detected by the speed detection section exceeds the second speed higher than the first speed.

2. The door device according to claim 1, wherein the speed detection section obtains the moving speed of the user based on a change in distance to the user detected by a distance measuring sensor.

3. The door device according to claim 1, wherein the moving speed of the user is obtained based on a change in position of the user detected by a plurality of user detection sensors arranged in a direction of passage of the user in the access passage.

4. The door device according to claim 1, wherein the door is provided at a center between an entrance and an exit of the user in the access passage.

5. A passage control method comprising the following steps executed by a computer: a determination step of determining whether or not to permit passage of a user of an access passage; a door opening / closing control step of controlling opening / closing of a door provided in the access passage in accordance with a result of determination in the determination step; a lock control step of controlling a lock mechanism section to switch between a locked state in which the door is prevented from moving from a closed state to an open state due to an external force, and an unlocked state in which the door is not prevented from moving from the closed state to the open state due to the external force; and a speed detection step of detecting a moving speed of the user, wherein the lock control step is a step of controlling the lock mechanism section to the unlocked state when the moving speed of the user detected in the speed detection step exceeds a first speed decided in advance, and wherein the door opening / closing control step is a step of opening the door provided in the access passage if the moving speed of the user detected in the speed detection step exceeds a second speed higher than the first speed, or the door opening / closing control step is a step of opening the door provided in the access passage after a distance between the user and the door in the closed state reaches a set distance if the moving speed of the user detected in the speed detection step exceeds the second speed higher than the first speed. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The door opening / closing control step is a step of opening the door provided in the passage if the moving speed of the user detected in the speed detection step exceeds a second speed higher than the first speed, after a distance between the user and the door in the closed state reaches a predetermined distance.

6. A storage medium storing a passage control program that causes a computer to execute the steps of: a determination step of determining whether or not to allow passage of a user into a passage; a door opening / closing control step of controlling opening and closing of a door provided in the passage in accordance with a result of the determination in the determination step; a lock control step of controlling a lock mechanism portion to switch between a locked state in which the door is prevented from moving from a closed state to an open state due to an external force, and an unlocked state in which the door is not prevented from moving from the closed state to the open state due to the external force; and a speed detection step of detecting a moving speed of the user, the lock control step is a step of controlling the lock mechanism portion to the unlocked state when the moving speed of the user detected in the speed detection step exceeds a predetermined first speed, the door opening / closing control step is a step of opening the door provided in the passage if the moving speed of the user detected in the speed detection step exceeds a second speed higher than the first speed, or, the door opening / closing control step is a step of opening the door provided in the passage if the moving speed of the user detected in the speed detection step exceeds a second speed higher than the first speed, after a distance between the user and the door in the closed state reaches a predetermined distance.

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