Unlocking System, Mobile Terminal, Authentication Server, Unlocking Command Device, and Door Sensor Device Used in the Unlocking System

Abstract

Provide an unlocking system with excellent security and smooth passage. 【Solution means】A first detection mechanism for detecting a passerby at a position within a first set distance from the door and a second detection mechanism for detecting a passerby at a position within a second set distance set shorter than the first set distance from the door, a first authentication mechanism for authenticating the passerby detected by the first detection mechanism and a second authentication mechanism for authenticating the passerby detected by the second detection mechanism, and an unlocking mechanism for unlocking the door when the passerby authenticated by the first authentication mechanism is also authenticated by the second authentication mechanism.

Description

Technical Field

[0001] The present invention relates to an unlocking system for controlling the unlocking of a door, and a mobile terminal, an authentication server, an unlocking command device, or a door sensor device used in the door unlocking system.

Background Art

[0002] Patent Document 1 describes an electric lock system that can remotely unlock an electric lock for locking a door. Specifically, this electric lock system communicates with a mobile terminal existing within a predetermined operation range centered on the electric lock, and unlocks the door when the passerby who owns the mobile terminal is authenticated as a person permitted to pass through the door.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, if the operation range is expanded in the electric lock system, it takes time for the passerby who has entered the operation range and been authenticated to reach the door, and during the period when the door is in the unlocked state, a third party may pass through the door, or there is a high possibility that an unintended unlocking may be performed by a mobile terminal located at a position away from the door. Therefore, it is not preferable in terms of security.

[0005] On the other hand, if the operation range is narrowed, the above-described situation can be prevented. However, there is a risk that the authentication may not be completed and the passerby may be stopped in front of the door before reaching the door. If the authentication is simplified and the time required for authentication is shortened, there is a risk that the security related to authentication becomes vulnerable.

[0006] The present invention has been made to solve the above-described problems, and an object thereof is to provide an unlocking system having excellent security and smooth passage.

Means for Solving the Problems

[0007] That is, the present invention has the following configuration.

[0008] [1] A first detection mechanism for detecting a passerby located within a first set distance from the door, and a second detection mechanism for detecting a passerby located within a second set distance shorter than the first set distance from the door; A first authentication mechanism for authenticating the passerby detected by the first detection mechanism, and a second authentication mechanism for authenticating the passerby detected by the second detection mechanism; An unlocking system including an unlocking mechanism for unlocking the door when the passerby authenticated by the first authentication mechanism is also authenticated by the second authentication mechanism.

[0009] According to the present invention configured as described above, finally, the door is unlocked after the passerby enters the second set distance. By shortening this second set distance, the door can be unlocked only for a short time until the passerby reaches the door. Therefore, it is possible to suppress the vulnerability of security due to an increase in the unlocking time of the door, and at the same time, it is possible to reduce the risk of unintended unlocking from a position away from the door. In addition, when the second set distance is shortened, for example, by simplifying the authentication by the second authentication mechanism and completing this second authentication within a short time until the passerby reaches the door, it is possible to prevent a situation where the passerby waits for unlocking in front of the door and ensure smooth passage. Furthermore, even if the authentication by this second authentication mechanism is simplified, since the authentication by the first authentication mechanism is performed in advance, the security related to the total authentication can be made sufficient.

[0010] [2] The unlocking system according to [1], characterized in that the time required for authentication by the first authentication mechanism is longer than the time required for authentication by the second authentication mechanism. With such a configuration, since sufficient authentication can be performed by the first authentication mechanism, even if the authentication by the second authentication mechanism is simplified, the security of the authentication can be ensured.

[0011] [3] The unlocking system according to [1], characterized in that the first authentication mechanism authenticates based on the attributes of the passerby and assigns a code to the authenticated passerby, and the second authentication mechanism authenticates based on the code. In such a configuration, if the authentication at the second authentication mechanism is simplified using a simple code, even when the second set distance is shortened, it becomes easy to complete the second authentication before the passerby reaches the door, ensuring smooth traffic. At the same time, if the first authentication mechanism performs complex attribute authentication, the overall security of the authentication can be made sufficient.

[0012] [4] The unlocking system according to [1], wherein the first detection mechanism and the second detection mechanism determine whether the passerby is within the first set distance and the second set distance by communicating with a mobile terminal possessed by the passerby. With such a configuration, since a detection mechanism can be configured using a commonly used mobile terminal such as a smartphone, it becomes easy to introduce the unlocking system according to the present invention. Specifically, a mode can be adopted in which the position of the passerby is specified using the GPS of the mobile terminal, or the position of the passerby is specified based on the reception intensity of the beacon signal received by the mobile terminal from a beacon signal source provided near the door.

[0013] [5] The unlocking system according to claim 1, wherein the first detection mechanism and the second detection mechanism are provided with a distance measuring sensor for measuring the distance between the door and the passerby, and detect the passerby based on the measured distance measured by the distance measuring sensor. With such a configuration, it becomes possible to adjust the set distance in more detail.

[0014] [6] The unlocking system according to claim 1, wherein the second detection mechanism includes an object detection sensor that detects an object that has entered a predetermined detection area set near the door, and detects a passerby based on a detection signal received from the object detection sensor. With such a configuration, authentication by the second authentication unit for unlocking the door is performed only when an object approaching the door is actually detected by the object detection sensor, so that unintended unlocking can be reduced.

[0015] [7] The unlocking system according to [1], wherein each authentication mechanism authenticates the passerby by communicating with a mobile terminal possessed by the passerby. With such a configuration, since authentication is performed using a commonly used mobile terminal such as a smartphone, the introduction of the unlocking system according to the present invention becomes easy.

[0016] [8] The unlocking system according to [7], wherein the second authentication mechanism has a second authentication information acquisition unit that performs local communication with the mobile terminal to acquire authentication information of the passerby, and the second authentication information acquisition unit is provided near the door. If the communication environment between the second authentication mechanism and the mobile terminal is poor and the communication speed is slow, it may take time for authentication, and there is a possibility that the authentication may not be completed within the time until the passerby reaches the door. However, with the configuration of [8], by performing the second authentication via local communication, which is easier to arrange a local communication environment compared to Internet communication, the communication speed can be ensured, and even when the second set distance is shortened, traffic smoothness can be ensured.

[0017] [9] It is used in an unlocking system including a first authentication mechanism for authenticating a passerby passing through a door and a second authentication mechanism for authenticating the passerby, and an unlocking mechanism for unlocking the door when the passerby authenticated by the first authentication mechanism is also authenticated by the second authentication mechanism. A first detection mechanism for detecting a passerby located within a first set distance from the door and a second detection mechanism for detecting a passerby located within a second set distance that is set shorter than the first set distance from the door, A mobile terminal including a first authentication information transmission unit that transmits first authentication information to a first authentication mechanism for authenticating a passerby detected by the first detection mechanism and a second authentication information transmission unit that transmits second authentication information to a second authentication mechanism for authenticating a passerby detected by the second detection mechanism. Such a mobile terminal can achieve the same operational effects as the unlocking system described above.

[0018]

[10] A first detection mechanism for detecting a passerby located within a first set distance from the door and a second detection mechanism for detecting a passerby located within a second set distance that is set shorter than the first set distance from the door, a second authentication mechanism for authenticating a passerby detected by the second detection mechanism, and an unlocking mechanism for unlocking the door when the passerby is authenticated by the second authentication mechanism, which is used in an unlocking system. Comprising a first authentication mechanism for authenticating a passerby detected by the first detection mechanism. The first authentication mechanism is an authentication server that performs authentication based on the attributes of the passerby and assigns a code necessary for authentication by the second authentication mechanism to the authenticated passerby. Even such an authentication server can achieve the same operational effects as the unlocking system described above.

[0019]

[11] A first detection mechanism for detecting a passerby located within a first set distance from the door and a second detection mechanism for detecting a passerby located within a second set distance that is set shorter than the first set distance from the door, a first authentication mechanism for authenticating a passerby detected by the first detection mechanism, which is used in an unlocking system where the first authentication mechanism performs authentication based on the attributes of the passerby and assigns a code to the authenticated passerby. A second authentication mechanism for authenticating a passerby detected by the second detection mechanism. Comprising an unlocking mechanism for unlocking the door when the passerby is authenticated by the second authentication mechanism. The second authentication mechanism is a unlocking command device that obtains the code from the passerby and performs authentication based on the code. Even such an unlocking command device can achieve the same operational effects as the unlocking system described above.

[0020]

[12] A unlocking system comprising a first detection mechanism for detecting a passerby located within a first set distance from the door, and a first authentication mechanism for authenticating the passerby detected by the first detection mechanism, wherein the first authentication mechanism performs authentication based on the attributes of the passerby and assigns a code to the authenticated passerby, a second detection mechanism for detecting a passerby located within a second set distance shorter than the first set distance from the door, a second authentication mechanism for authenticating the passerby detected by the second detection mechanism, and a unlocking mechanism for unlocking the door when the passerby is authenticated by the second authentication mechanism, The second detection mechanism has an object detection sensor for detecting an object that has entered a predetermined detection area set near the door, and detects a passerby based on a detection signal received from the object detection sensor. The second authentication mechanism is a door sensor device that obtains the code from the passerby and performs authentication based on the code. Even such a door sensor device can achieve the same operational effects as the unlocking system described above.

Advantages of the Invention

[0021] According to the present invention configured as described above, it is possible to provide an unlocking system excellent in security and smooth passage.

Brief Description of the Drawings

[0022]

Figure 1

Figure 2

Figure 3

Figure 4

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Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0023] Hereinafter, a first embodiment of a human detection device according to the present invention will be described with reference to the drawings.

[0024] [First Embodiment] 1. System Overview The unlocking system according to the present embodiment unlocks door X (here, an automatic door) provided at the entrance of an apartment building such as a condominium, an office, a factory, etc., so that only authorized persons can pass through. As the authorized passerby, a delivery person who transports luggage to the condominium will be taken as an example as appropriate to describe this system.

[0025] In the present embodiment, the locked state of the automatic door indicates a state where the door is not automatically opened for passersby, and the unlocked state indicates a state where the door is automatically opened. Note that the door may be a manual door.

[0026] 2. System Configuration 2-1. Overall Configuration As shown in FIGS. 1 and 2, this unlocking system 100 is configured to utilize a mobile terminal 1 carried by a passerby, an authentication server 2 for authenticating the passerby, and an unlocking command device 3 for unlocking Door X.

[0027] 2-2. Mobile Terminal 1 The mobile terminal 1 includes a CPU, a memory, input / output devices such as a touch panel display, a communication interface, etc., and is, for example, a smartphone, a tablet, a personal computer, etc. The mobile terminal 1 is configured to be able to communicate with external devices via Internet communication using the communication network N and local communication such as BLE.

[0028] As shown in FIG. 3, this mobile terminal 1 functions as a signal receiving unit 11, a position determination unit 12, a first authentication information transmission unit 13, a first authentication information storage unit 14, a second authentication information transmission unit 15, a second authentication information storage unit 16, etc. when the CPU and peripheral devices cooperate according to a predetermined program stored in the memory. The configurations of these respective units will be described in detail below.

[0029] 2-2-1. Signal Receiving Unit 11 The signal receiving unit 11 receives a signal from a signal transmitter T whose installation position is known. The signal receiving unit 11 of this embodiment receives a beacon signal using BLE (Bluetooth Low Energy), which is one type of short-range wireless communication.

[0030] Here, the signal transmitter T is a short-range communication module (here, a BLE module) provided in the unlocking command device 3 attached to Door X without a target. The signal transmitter T may be provided separately from the unlocking command device 3 on a wall near Door X or the like.

[0031] The beacon signal indicates, for example, the device ID and installation coordinates of the unlocking command device 3 or the signal transmitter T, and is transmitted at a predetermined cycle. Note that the beacon signal may use short-range wireless communication other than BLE (such as Bluetooth or Wi-Fi).

[0032] 2-2-2. Position determination unit 12 Based on the communication between the signal transmitter T and the signal receiving unit 11, the position determination unit 12 determines whether the mobile terminal 1 (substantially, the passerby holding the mobile terminal 1) is within a first set distance from the door X, and whether it is within a second set distance shorter than the first set distance. Specifically, the position determination unit 12 determines the position of the passerby based on the received signal strength (RSSI: Received Signal Strength Indicator) of the beacon signal received by the signal receiving unit 11.

[0033] Here, the beacon signal uses BLE with low directivity. The RSSI of this beacon signal attenuates as it moves away in each direction around the door X where the signal transmitter T is installed.

[0034] In this embodiment, the determination of whether the passerby is within each set distance is made based on the comparison between the RSSI reference value determined for each set distance and the RSSI measurement value actually measured by the signal receiving unit 11.

[0035] The RSSI reference value is a reference value set based on the RSSI value measured in advance at a position at the set distance from the door X. Note that the RSSI reference value may be set based on, for example, the correlation between the distance and RSSI obtained in advance. The RSSI reference value here is pre-stored in a predetermined area of the memory of the mobile terminal 1, but it may also be included in the beacon signal.

[0036] Here, as the RSSI reference values, a first RSSI reference value at the first set distance and a second RSSI reference value at the second set distance are set. As described above, since the second set distance is shorter than the first set distance, the second RSSI reference value is set to a value larger than the first RSSI reference value.

[0037] When the RSSI measurement value is equal to or greater than the first RSSI reference value, the position determination unit 12 determines that the pedestrian is at a position within the first set distance. Otherwise, the position determination unit 12 determines that the pedestrian is at a position farther than the first set distance. Further, when the RSSI measurement value is equal to or greater than the second RSSI reference value, the position determination unit 12 determines that the pedestrian is at a position within the second set distance. Otherwise, the position determination unit 12 determines that the pedestrian is at a position farther than the second set distance.

[0038] Note that a significant difference is provided between each set distance or each RSSI reference value so that even if affected by individual differences of the mobile terminal 1 or reflected waves of the beacon signal, etc., persons within each set distance can be separately detected.

[0039] The signal reception unit 11 and the position determination unit 12 of the present embodiment described above correspond to the first detection mechanism D1 and the second detection mechanism D2 referred to in the claims.

[0040] 2-2-3. First authentication information transmission unit 13 When the position determination unit 12 determines that the pedestrian is at a position within the first set distance from door X, that is, when the pedestrian is detected by the first detection mechanism D1, the first authentication information transmission unit 13 transmits first authentication information to the authentication server 2 via Internet communication. The first authentication information transmitted here is stored in advance in a first authentication information storage unit 14 set in a predetermined area of the memory of the mobile terminal 1.

[0041] The first authentication information is information for identifying who the pedestrian is. The first authentication information of the present embodiment includes, for example, a merchant number for identifying the merchant to which the pedestrian (delivery person) belongs as attribute information.

[0042] The attribute information is information for directly or indirectly identifying the attributes of the pedestrian, and is, for example, affiliation, job responsibility, position, employee number, membership, etc. The attribute information may be not only such public information but also personal information such as name, address, and personal number.

[0043] 2-2-4. Second Authentication Information Sending Unit 15 When the position determination unit 12 determines that the passerby is at a position within the second set distance from Door X, that is, when the passerby is detected by the second detection mechanism D2, the second authentication information sending unit 15 transmits the second authentication information to the unlocking command device 3 via local communication. The second authentication information transmitted here is stored in the second authentication information storage unit 16 set in a predetermined area of the memory of the mobile terminal 1.

[0044] Similar to the first authentication information, the second authentication information is information for identifying who the passerby is. The second authentication information in this embodiment is an assigned code given by the authentication server 2, and is information for identifying whether the person has successfully passed the authentication using the first authentication information in the authentication server 2. Note that the second authentication information may include attribute information stored in the second authentication information storage unit 16.

[0045] 2-3. Authentication Server 2 The authentication server 2 is a computer equipped with a CPU, a memory, a communication interface, etc. Note that the authentication server 2 may be a virtualized computer provided in, for example, the cloud or the like. The authentication server 2 is configured to be able to communicate with external devices via Internet communication using the communication network N.

[0046] This authentication server 2 exhibits functions as a first authentication information acquisition unit 21, a first registration information acquisition unit 22, a first registration information storage unit 23, a first determination unit 24, a coding unit 25, etc. by the CPU and peripheral devices cooperating according to a predetermined program stored in the memory. The configurations of these units will be detailed below.

[0047] 2-3-1. First Authentication Information Acquisition Unit 21 The first authentication information acquisition unit 21 acquires the first authentication information from the passerby detected by the first detection mechanism D1. Here, it receives the first authentication information from the first authentication information sending unit 13.

[0048] 2-3-2. First Registration Information Acquisition Unit 22 The first registration information acquisition unit 22 acquires first registration information indicating a person permitted to pass through door X.

[0049] The first registration information is, for example, pre-registered by a condominium management company or a security company. Here, it includes attribute information of the person permitted to pass (here, the business number of the delivery person). It may also include, for example, the personal number of a condominium resident, the business numbers of other access businesses, or employee numbers. However, at least the first registration information must be comparable to a part of the first authentication information.

[0050] 2-3-3. First Registration Information Storage Unit 23 The first registration information storage unit 23 is set in a predetermined area of the memory of the authentication server 2 and stores the first registration information in advance.

[0051] 2-3-4. First Judgment Unit 24 The first judgment unit 24 compares the first authentication information acquired by the first authentication information acquisition unit 21 from the person detected by the first detection mechanism D1 with the first registration information acquired by the first registration information acquisition unit 22, and determines whether the person detected by the first detection mechanism D1 is a person permitted to pass through door X.

[0052] Here, the first judgment unit 24 compares the attribute information of the person included in the first authentication information with the attribute information included in the first registration information. If they match, it determines that the person detected by the first detection mechanism D1 is a person permitted to pass through door X. If they do not match, it determines that the person is not a person permitted to pass.

[0053] 2-3-5. Coding Unit 25 The code assigning unit 25 assigns an assigned code to a passerby who is determined by the first determination unit 24 to be a person permitted to pass through door X. Specifically, the code assigning unit 25 transmits, for example, via Internet communication, the assigned code (the code referred to in the claims) stored in advance in a predetermined area of the memory of the authentication server 2 to the mobile terminal 1. The assigned code becomes information for identifying that the assigned passerby is a person authenticated by the authentication server 2.

[0054] The assigned code is the code necessary for unlocking door X, and here it is a unique password determined in advance for each unlocking command device 3. The assigned code may be a one-time password generated by the code assigning unit 25 or the like.

[0055] The first authentication information acquisition unit 21, the first registration information acquisition unit 22, the first registration information storage unit 23, the first determination unit 24, and the code assigning unit 25 of the present embodiment described above correspond to the first authentication mechanism A1 referred to in the claims. Hereinafter, the authentication by this first authentication mechanism A1 is referred to as the first authentication.

[0056] 2-4. Unlocking Command Device 3 As shown in FIGS. 1 to 3, the unlocking command device 3 is, for example, attached to door X without a pattern, and includes a housing (not shown) and an information processing device (not shown) housed in this housing. The information processing device is a computer equipped with a CPU, a memory, a communication interface, and the like. The information processing device is configured to be able to communicate with external devices via local communication such as BLE.

[0057] Furthermore, the unlocking designation device of this embodiment includes the aforementioned signal transmitter T in the housing.

[0058] The information processing device exhibits functions as a second authentication information acquisition unit 31, a second registration information acquisition unit 32, a second registration information storage unit 33, a second determination unit 34, an unlocking signal transmission unit 35, etc. by the CPU and peripheral devices cooperating according to a predetermined program stored in the memory. The configuration of each of these units will be described in detail below.

[0059] 2-4-1. Second authentication information acquisition unit 31 The second authentication information acquisition unit 31 acquires second authentication information from the passerby detected by the second detection mechanism D2, and here it receives the second authentication information from the second authentication information transmission unit 15.

[0060] 2-4-2. Second registered information acquisition unit 32 The second registered information acquisition unit 32 acquires second registered information indicating the passerby permitted to pass through door X. The second registered information acquisition unit 32 here acquires the second registered information from the second registered information storage unit 33 that can be compared with this when the second authentication information acquisition unit 31 acquires the second authentication information.

[0061] The second registered information is, here, a unique password (hereinafter referred to as a setting code) predetermined for each unlocking command device 3. Note that the second registered information only needs to be comparable with at least a part of the first authentication information.

[0062] 2-4-3. Second registered information storage unit 33 The second registered information storage unit 33 is set in a predetermined area of the memory of the information processing device and stores the second registered information in advance.

[0063] 2-4-4. Second determination unit 34 The second determination unit 34 compares the second authentication information acquired by the second authentication information acquisition unit 31 from the passerby detected by the second detection mechanism D2 with the second registered information acquired by the second registered information acquisition unit 32, and determines whether the passerby detected by the second detection mechanism D2 is a person permitted to pass through door X.

[0064] The second determination unit 34 here compares the assigned code possessed by the passerby with the setting code possessed by the unlocking command device 3, and determines that the passerby detected by the second detection mechanism D2 is a person permitted to pass through door X when they match, and determines that the person is not a permitted passerby when they do not match.

[0065] The second authentication information acquisition unit 31, the second registration information acquisition unit 32, the second registration information storage unit 33, and the second determination unit 34 of the present embodiment described above correspond to the second authentication mechanism A2 referred to in the claims. Hereinafter, the authentication by this second authentication mechanism A2 is referred to as second authentication.

[0066] In the present embodiment, the authentication contents of the first authentication (attribute authentication) and the second authentication (code authentication) are made different from each other so that the time required for the second authentication is shorter than the time required for the first authentication.

[0067] 2-4-5. Unlock signal transmission unit 35 The unlock signal transmission unit 35 transmits an opening / closing command signal for opening door X to the opening / closing drive device of door X when it is determined by the first determination unit 24 that the passerby detected by the first detection mechanism D1 is a person permitted to pass through door X, and when it is determined by the second determination unit 34 that the passerby detected by the second detection mechanism D2 is a person permitted to pass through door X.

[0068] Here, since the second authentication mechanism A2 of the present embodiment performs authentication using the grant code given when the first authentication mechanism A1 succeeds in authentication, if this authentication is successful, it means that both the first authentication mechanism A1 and the second authentication mechanism A2 have succeeded in authentication. Therefore, the unlock signal transmission unit 35 of the present embodiment determines that the first authentication mechanism A1 has also succeeded in authentication when the second authentication mechanism A2 succeeds in authentication.

[0069] As described above, the unlock signal transmission unit 35 of the present embodiment corresponds to the unlocking mechanism L referred to in the claims.

[0070] 3. Operation

[0071] Hereinafter, with reference to FIGS. 4 and 5, the operations of the first authentication and the second authentication when the passerby is a delivery person will be described.

[0072] 3-1. First authentication (attribute authentication) In the unlocking system of this embodiment, as shown in FIGS. 1 and 2, a beacon signal is constantly transmitted from the signal transmitter T near the door towards the periphery of the door X. When the delivery worker approaches the door X, the mobile terminal 1 of the delivery worker receives the beacon signal (step S11).

[0073] When the delivery worker approaches the door X, the RSSI measurement value of the beacon signal gradually increases. When the RSSI measurement value becomes equal to or greater than the first RSSI reference value, the position determination unit 12 determines that the delivery worker is within the first set distance from the door X (step S12), and the first authentication information transmission unit 13 attempts Internet communication with the authentication server 2.

[0074] When the Internet communication is established (step S13), the first authentication information transmission unit 13 associates information for identifying the door X through which the delivery worker intends to pass with the first authentication information of the delivery worker and transmits it to the first authentication information acquisition unit 21 (step S14). Here, the device ID of the unlocking command device 3 indicated by the beacon signal is associated with the first authentication information as the information for identifying the door X.

[0075] When the first authentication information acquisition unit 21 receives the first authentication information, the first registration information acquisition unit 22 confirms the device ID associated with the first authentication information and identifies the door X through which the passerby intends to pass. Then, the first registration information indicating permission to pass through the door X is acquired from the first registration information storage unit 23 (step S15).

[0076] The first determination unit 24 searches the first registration information acquired by the first registration information acquisition unit 22 to determine whether there is first registration information including the merchant number indicated in the first authentication information, that is, whether the delivery worker is permitted to pass (step S16).

[0077] When the first determination unit 24 determines that the person is a delivery worker whose passage is permitted, the code assignment unit 25 transmits an assigned code to the mobile terminal 1. The assigned code received by the mobile terminal 1 is stored in the second authentication information storage unit 16 as the second authentication information (step S17). Thereby, the first authentication is completed.

[0078] 3-2. Second Authentication (Code Authentication) When the delivery worker approaches door X further and the RSSI measurement value of the beacon signal received by the mobile terminal 1 becomes equal to or greater than the second RSSI reference value, the position determination unit 12 determines that the delivery worker is within the second set distance from door X (steps S21, S22), and the second authentication information transmission unit 15 attempts local communication with the unlocking command device 3.

[0079] When the local communication is established (step S23), the second authentication information transmission unit 15 transmits the assigned code to the second authentication information acquisition unit 31 (step S24).

[0080] When the second authentication information acquisition unit 31 receives the assigned code, the second registration information acquisition unit 32 acquires the set code, and the second determination unit 34 determines whether to collate the assigned code with the set code, that is, determines whether the person is a delivery worker whose passage is permitted (step S25).

[0081] When the second determination unit 34 determines that the person is a delivery worker whose passage is permitted, the unlocking signal transmission unit 35 transmits an opening / closing command signal to the opening / closing drive device to open door X (step S26). Thereby, the second authentication is also completed, and the delivery worker can pass through door X to perform the delivery.

[0082] 4. Effects With the unlocking system 100 configured as described above, ultimately, since door X is unlocked after the passerby enters the short second set distance, door X can be unlocked only for a short time until the passerby reaches door X, and it is possible to suppress the vulnerability of security due to the lengthening of the unlocking time of door X. At the same time, it is possible to reduce the risk of unintended unlocking from a position away from door X.

[0083] Since the second authentication mechanism A2 performs simple code authentication, this second authentication can be completed within a short time until the passerby reaches door X, preventing the situation where the passerby waits for unlocking in front of the door and ensuring smooth traffic.

[0084] The authentication by the second authentication mechanism A2 is performed via local communication between the unlocking command device 3 and the mobile terminal 1, so it is less likely that the authentication time will be long due to the network environment.

[0085] Furthermore, even if simple code authentication is performed by this second authentication mechanism A2, since attribute authentication by the first authentication mechanism A1 is performed in advance, the security related to the total authentication is sufficient. Also, even if the first set distance is increased, the time during which the door is unlocked does not increase, so it is easy to operate by adopting complex attribute authentication by the first authentication mechanism A1 with a longer first set distance.

[0086] Since the unlocking system is configured using the passerby's mobile terminal 1, the introduction of the system becomes easy. By using the mobile terminal 1, authentication can be performed while the passerby who has entered each set distance is moving, ensuring smooth traffic.

[0087] Since RSSI is used, the ranging accuracy indoors is better than when determining the distance between door X and the passerby using, for example, the GPS of the mobile terminal 1.

[0088] Since authentication is performed using the respective authentication information pre-stored in the mobile terminal 1, it is possible to support hands-free authentication and is convenient.

[0089] [Second Embodiment] The mobile terminal of this embodiment further functions as a distance measurement unit that measures the distance between the signal transmitter and the mobile terminal. Since the signal transmitter is provided near the door and the mobile terminal is carried by a passerby, the distance measurement unit substantially measures the distance between the door and the passerby (hereinafter also referred to as the measurement distance).

[0090] The distance measurement unit measures the measurement distance based on the RSSI measurement value. For example, the distance measurement unit obtains the measurement distance from the RSSI measurement value based on the correlation between the RSSI and the distance obtained in advance. Then, the position determination unit compares the measurement distance with each set distance and determines whether the passerby is within each set distance.

[0091] In this embodiment, the signal reception unit, the distance measurement unit, and the position determination unit correspond to the first detection mechanism D1 and the second detection mechanism D2 referred to in the claims.

[0092] With such a configured unlocking system, it becomes possible to adjust the set distance in more detail. Also, if the moving speed of the passerby is estimated based on the measurement distance, it becomes possible to estimate the presence or absence of the passerby's intention to pass and for the door control unit to make an unlocking determination.

[0093] Here, the signal reception unit and the distance measurement unit functioned as a distance measurement sensor that measures the distance between the door and the passerby. However, for example, a distance measurement sensor using LiDAR, RADAR, ultrasonic waves, etc. provided around the door may be used to measure the distance between the door and the passerby.

[0094] [Third Embodiment] As shown in FIG. 6, the mobile terminal 1 of this embodiment further functions as a position identification unit that identifies the position of the passerby in addition to the above-described distance measurement unit.

[0095] The signal receiving unit 11 of this embodiment receives beacon signals from two signal transmitters T1 and T2 installed at different locations. Here, the two signal transmitters T1 and T2 are attached to the wall where the door X is provided so as to sandwich the door X. The beacon signal includes at least information about the installation coordinates of the signal transmitter.

[0096] The distance measuring unit measures the distances between each signal transmitter T1, T2 and the passerby based on the beacon signals received from each signal transmitter T1, T2.

[0097] The position specifying unit checks the installation coordinates of the signal transmitters T1, T2 indicated by the beacon signals received by the signal receiving unit 11, and based on these two installation coordinates and the measured distances measured by the distance measuring unit, specifies the position (plane coordinates) of the passerby.

[0098] Then, the position determination unit 12 of this embodiment determines whether or not there is a passerby in a first authentication area set within a first set distance or a second authentication area set within a second set distance based on the specified position of the passerby. Note that the position specifying unit may simply determine whether or not the passerby is within a first set distance or a second set distance from the door X.

[0099] In this embodiment, the signal receiving unit, the distance measuring unit, the position specifying unit, and the position determination unit correspond to the first detection mechanism D1 and the second detection mechanism D2 referred to in the claims.

[0100] With such a configured unlocking system, the range in which each authentication is performed can be limited within the range of each authentication area, so that the risk of unintended unlocking of the door X can be further reduced.

[0101] In addition, if the movement route is specified based on the change over time of the position of the passerby, it becomes possible to estimate whether the passerby has an intention to pass and have the door control unit make an unlocking determination. Also, by recording the detection position and movement route of the passerby and referring to this when resetting the set distance or authentication area, traffic smoothness and security can be further improved.

[0102] Note that the position specifying unit may specify the position of the passerby based on beacon signals from three or more signal transmitters received by the signal receiving unit 11. In this case, the position of the passerby can be specified in more detail.

[0103] Here, the position specifying unit specified the position of the passerby based on the distance between the signal transmitter with known installation coordinates and the mobile terminal, but the method of position specification is not limited to this. For example, a plurality of signal transmitters may be installed around the door, and the RSSI values at each position around the door may be pre-learned, and the position of the mobile terminal may be directly specified based on this learning result. Also, the position of the passerby may be specified by other methods such as using the GPS of the mobile terminal.

[0104] [Fourth Embodiment] In this embodiment, as shown in FIGS. 7 and 8, the unlocking command device 3 is a door sensor device further including an object detection sensor S.

[0105] The object detection sensor S is provided inside the housing of the door sensor device, and detects an object present in a detection area set within a second set distance from the door X and outputs a detection signal indicating the same. Here, the detection signal is transmitted to the position determination unit 12 via local communication.

[0106] Here, the object detection sensor S is a passive infrared sensor, but various types such as an active infrared sensor, a radar sensor using microwaves or millimeter waves, or a camera sensor using an imaging element can be used.

[0107] When the RSSI measurement value is greater than or equal to the first RSSI reference value, the position determination unit 12 of this embodiment determines that the pedestrian is at a position within the first set distance, and otherwise determines that the pedestrian is at a position farther than the first set distance. Further, when receiving the detection signal, the position determination unit 12 determines that the pedestrian is at a position within the second set distance, and otherwise determines that the pedestrian is at a position farther than the second set distance.

[0108] In this embodiment, the object detection sensor S and the position determination unit correspond to the second detection mechanism D2 referred to in the claims.

[0109] In the unlocking system using the object detection sensor S in this way, since the pedestrian can be detected with higher accuracy than when using RSSI which is greatly affected by disturbances, the second set distance can be set more precisely, and the unintended unlocking of the door X can be further reduced, or the situation where the pedestrian waits for unlocking in front of the door can be more reliably prevented.

[0110] Similar to such a second detection mechanism D2, the first detection mechanism D1 may also be configured using the above-described object detection sensor and other distance measurement sensors. Further, the function of the position determination unit 12 in this embodiment may be provided separately in the mobile terminal and the door sensor device. Specifically, a first position determination unit for determining whether the pedestrian is within the first set distance may be provided in the mobile terminal, and a second position determination unit for determining whether the pedestrian is at the second set distance may be provided in the door sensor device.

[0111] [Fifth Embodiment] The unlocking command device 3 of this embodiment is also a door sensor device including an object detection sensor S as in the fourth embodiment as shown in FIG. 9.

[0112] The object detection sensor S detects an object existing in the detection area set near the doorway area and outputs a detection signal indicating that fact, and physically is the same as that described in the fourth embodiment. The detection area here is provided within the second set distance, but is not limited thereto.

[0113] The unlocking signal transmission unit 35 here outputs an opening / closing command signal for the door X based not only on the determination results of the first determination unit 24 and the second determination unit 34 but also on the detection signal output from the object detection sensor S. That is, this door control unit transmits an opening / closing command signal to open the door X to the opening / closing drive device of the door X when it is determined by the first determination unit 24 and the second determination unit 34 that the detected passerby is a person permitted to pass, and a person is detected by the object detection sensor.

[0114] In this embodiment, the object detection sensor S and the unlocking signal transmission unit correspond to the unlocking mechanism L referred to in the claims.

[0115] With such a configured unlocking system, the door X is unlocked only when the body of the passerby is actually detected in front of the door, so the risk of unintended unlocking of the door X can be reduced. Also, in this embodiment, since the detection area is provided within the second set distance, the unlocking time of the door X can be further shortened and the security can be further enhanced.

[0116] [Sixth Embodiment] The signal receiving unit of this embodiment receives a first beacon signal and a second beacon signal as beacon signals. And the position determination unit compares the RSSI measurement value of the first beacon signal with the first RSSI reference value to determine whether the passerby is at a position within the first set distance, and compares the RSSI measurement value of the second beacon signal with the second RSSI reference value to determine whether the passerby is at a position within the second set distance.

[0117] The second beacon signal here is not transmitted constantly. For example, it is transmitted when a passerby is detected by the first detection mechanism or when an object detection sensor provided in the unlocking command device detects an object.

[0118] In this way, since the second beacon signal necessary for the final unlocking of the door is not transmitted constantly, unintended unlocking is reduced and the security is improved.

[0119] The second beacon signal may be transmitted constantly. In this case, it is preferable that the signal receiving unit receives the first beacon signal and the second beacon signal from different signal transmitters respectively. For example, if the first beacon signal is received from a signal transmitter installed at a position away from the door and the second beacon signal is received from a signal transmitter installed at a position close to the door, it is possible to make it difficult for the second beacon signal to reach a position far from the door, while expanding the range where authentication can be started and more reliably limiting the position where the door can be unlocked to the vicinity of the door.

[0120] Also, the output power of the second beacon signal may be set to be smaller than the output power of the first beacon signal.

[0121] [Seventh Embodiment] As shown in FIG. 10, the first set distance and the second set distance in this embodiment are set as the distance (so-called route) on the route through which the passerby heading towards the door X passes.

[0122] When the first detection mechanism D1 determines the distance between the door X and the passerby based on RSSI, the first RSSI reference value may be set based on a value measured in advance at a position of the first set distance from the door X on the route. The same applies to the second RSSI reference value.

[0123] In this way, even when the movement path to the door at the introduction destination is not a straight line, the first authentication can be performed at a position where the arrival time to the door is long, and the second authentication can be performed at a position where the arrival time is short.

[0124] If each determination unit uses the position specifying unit described in the third embodiment or the object detection sensor described in the fourth embodiment, it is possible to accurately determine the position of a passerby passing through a complex route.

[0125] [Other Embodiments] Each detection mechanism may detect a passerby within a predetermined set distance. For example, the first detection mechanism may detect a passerby within the range of the first set distance and the second set distance, that is, at a position within the first set distance from the door and farther than the second set distance. In this case, for example, it is possible to prevent the door from being unlocked by a passerby who passes through the door from the side where it is not locked and is within the second set distance.

[0126] Each detection mechanism may determine the distance between the door and the passerby based on the RSSI of a signal other than the beacon signal.

[0127] The first detection mechanism and the second detection mechanism may determine the distance between the door and the passerby by using the GPS function of the mobile terminal or the like, or may determine the approach from the position of the first set distance to the position of the second set distance by using the acceleration sensor or gyro sensor built into the mobile terminal.

[0128] The unlocking system may include a third detection mechanism that detects a passerby at a position within the third set distance and a third authentication mechanism that authenticates the passerby detected by the third detection mechanism, or may include further detection mechanisms and authentication mechanisms.

[0129] The first authentication acquisition unit or the second authentication acquisition unit may acquire and authenticate a password, biometric information, etc. input from the input device (touch panel, camera, etc.) of the mobile terminal. Also, authentication may be performed by combining these with information previously stored in the mobile terminal.

[0130] The code assignment unit may change the type of assignment code assigned to the passerby according to the content of the attribute information included in the first authentication information acquired by the first authentication information acquisition unit. And the unlocking signal transmission unit may change the control mode (door opening time, opening and closing speed, opening degree, etc.) to the door according to the type of the assignment code. For example, it is possible to lengthen the door opening time for a passerby having an attribute such as a moving company whose moving speed is assumed to be slow.

[0131] The second authentication information acquisition unit 31 may acquire the second authentication information from an input device or the like installed in front of the door.

[0132] The unlocking mechanism may have an opening / closing drive device and actually physically open the door.

[0133] The unlocking system of each of the above embodiments was composed of a door control device, a mobile terminal, and an authentication server, but the physical configuration of the human detection device according to the present invention is not limited to this. Also, the location where each functional unit physically exists is not limited to the location shown in each embodiment.

[0134] For example, the function of the first determination unit or the second determination unit may be exerted by the mobile terminal. Also, the function of the second determination unit may be exerted by the authentication server. In this case, for example, if the unlocking command device is connected to the network by wire, the unlocking command device can acquire the result of the second authentication without being affected by the communication environment of the wireless network. Also, operations such as the unlocking command device transmitting the imparted code received from the mobile terminal via local communication to the authentication server become possible.

[0135] In addition, when each detection mechanism uses an object detection sensor, this object detection sensor may be provided in an object detection device different from the unlocking command device.

Explanation of Reference Numerals

[0136] 100 ··· Unlocking system D1 ··· First detection mechanism D2 ··· Second detection mechanism A1 ··· First authentication mechanism A2 ··· Second authentication mechanism L ··· Unlocking mechanism T ··· Signal transmitter 1 ··· Mobile terminal 11 ··· Signal reception unit 12 ··· Position determination unit 13 ··· First authentication information transmission unit 15 ··· Second authentication information transmission unit 2 ··· Authentication server 21 ··· First authentication information acquisition unit 24 ··· First judgment unit 25 ··· Coding unit 3 ··· Unlocking instruction device 31 ··· Second authentication information acquisition unit 34 ··· Second judgment unit 35 ··· Unlocking signal transmission unit

Claims

1. a first detection mechanism that detects a person passing by within a first set distance from the door, and a second detection mechanism that detects a person passing by within a second set distance from the door, the second set distance being set shorter than the first set distance; a first authentication mechanism for authenticating a passerby detected by the first detection mechanism and a second authentication mechanism for authenticating a passerby detected by the second detection mechanism; an unlocking mechanism that unlocks the door when a passerby authenticated by the first authentication mechanism is also authenticated by the second authentication mechanism, The first authentication mechanism performs authentication based on attributes of a passerby and assigns a code to the authenticated passerby, and the second authentication mechanism performs authentication based on the code.

2. 2. The unlocking system according to claim 1, wherein a time required for authentication by said first authentication mechanism is longer than a time required for authentication by said second authentication mechanism.

3. The unlocking system according to claim 1 , wherein the first detection mechanism and the second detection mechanism determine whether or not a passerby is within the first set distance and the second set distance by communicating with a portable terminal carried by the passerby.

4. 2. The unlocking system according to claim 1, wherein the first detection mechanism and the second detection mechanism each include a distance measuring sensor that measures a distance between the door and a passerby, and detects a passerby based on a distance measured by the distance measuring sensor.

5. The unlocking system of claim 1, wherein the second detection mechanism is equipped with an object detection sensor that detects an object that has entered a predetermined detection area set near the door, and detects a passerby based on a detection signal received from the object detection sensor.

6. 2. The unlocking system according to claim 1, wherein each of said authentication mechanisms authenticates a passerby by communicating with a portable terminal carried by the passerby.

7. The unlocking system of claim 6, wherein the second authentication mechanism has a second authentication information acquisition unit that acquires authentication information of the passerby by locally communicating with the mobile terminal, and the second authentication information acquisition unit is provided near the door.

8. The present invention is used in an unlocking system comprising a first authentication mechanism for authenticating a person passing through a door, a second authentication mechanism for authenticating the person, and an unlocking mechanism for unlocking the door when the person authenticated by the first authentication mechanism is also authenticated by the second authentication mechanism, the first authentication mechanism performing authentication based on attributes of the person passing through the door and assigning a code to the authenticated person, a first detection mechanism that detects a passerby within a first set distance from the door, and a second detection mechanism that detects a passerby within a second set distance from the door, the second set distance being set shorter than the first set distance; A portable terminal comprising: a first authentication information transmission unit that transmits first authentication information to a first authentication mechanism that authenticates a passerby detected by the first detection mechanism; and a second authentication information transmission unit that transmits the code as second authentication information to a second authentication mechanism that authenticates a passerby detected by the second detection mechanism.

9. The present invention is used in an unlocking system including a first detection mechanism for detecting a passerby within a first set distance from a door, a second detection mechanism for detecting a passerby within a second set distance from the door that is set shorter than the first set distance, a second authentication mechanism for authenticating the passerby detected by the second detection mechanism, and an unlocking mechanism for unlocking the door when the passerby is authenticated by the second authentication mechanism, a first authentication mechanism for authenticating a passerby detected by the first detection mechanism; The first authentication mechanism is an authentication server that performs authentication based on attributes of a passerby and provides the authenticated passerby with a code required for authentication by the second authentication mechanism.

10. The present invention is used in an unlocking system comprising a first detection mechanism for detecting a passerby within a first set distance from a door, a second detection mechanism for detecting a passerby within a second set distance from the door that is set shorter than the first set distance, and a first authentication mechanism for authenticating the passerby detected by the first detection mechanism, wherein the first authentication mechanism performs authentication based on attributes of the passerby and assigns a code to the authenticated passerby, a second authentication mechanism for authenticating a passerby detected by the second detection mechanism; an unlocking mechanism that unlocks the door when the passerby is authenticated by the second authentication mechanism, The second authentication mechanism is an unlock command device that acquires the code from a passerby and performs authentication using the code.

11. The present invention is used in an unlocking system comprising a first detection mechanism for detecting a passerby located within a first set distance from a door, and a first authentication mechanism for authenticating the passerby detected by the first detection mechanism, the first authentication mechanism authenticating the passerby based on attributes of the passerby and assigning a code to the authenticated passerby, a second detection mechanism that detects a passerby within a second set distance from the door, the second set distance being set shorter than the first set distance; a second authentication mechanism for authenticating a passerby detected by the second detection mechanism; an unlocking mechanism that unlocks the door when the passerby is authenticated by the second authentication mechanism, The second detection mechanism has an object detection sensor that detects an object that has entered a predetermined detection area set near the door, and detects a passerby based on a detection signal received from the object detection sensor. The second authentication mechanism is a door sensor device that acquires the code from a passerby and performs authentication using the code.

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