JP7700316B1 - Unlocking system, and mobile terminal, authentication server, unlocking command device, and door sensor device used in the unlocking system - Google Patents

Abstract

An unlocking system that is excellent in terms of security and smooth passage is provided.
[Solution] The system is configured to include a first detection mechanism that detects passersby within a first set distance from the door, and a second detection mechanism that detects passersby within a second set distance from the door that is set shorter than the first set distance, a first authentication mechanism that authenticates passersby detected by the first detection mechanism, and a second authentication mechanism that authenticates passersby detected by the second detection mechanism, and an unlocking mechanism that unlocks the door if a passerby authenticated by the first authentication mechanism is also authenticated by the second authentication mechanism.
[Selected figure] Figure 2

Description

The present invention relates to an unlocking system that controls the unlocking of a door, and a mobile terminal, an authentication server, an unlock command device, or a door sensor device used in the door unlocking system.

Patent Document 1 describes an electric lock system that can remotely unlock an electric lock that locks a door. Specifically, this electric lock system has an electric lock device that communicates with a mobile terminal that is present within a specified operating range centered on the electric lock, and unlocks the door when a passerby who owns the mobile terminal is authenticated as a person authorized to pass through the door.

Patent No. 6811428

However, expanding the operating range of the electric lock system is not desirable from a security standpoint, since it takes time for a passerby who has entered the operating range and been authenticated to reach the door, and it increases the possibility that a third party may pass through the door while the door is unlocked, or that a mobile device located far away from the door may cause the door to be unlocked unintentionally.

On the other hand, narrowing the operation range could prevent the above-mentioned situation, but it could also create a risk that a passerby who enters the operation range may not be able to complete the authentication process before arriving at the door, resulting in the passerby being held up at the door. On the other hand, simplifying the authentication process to shorten the time required for authentication could result in the security related to the authentication being weakened.

The present invention was made to solve the above-mentioned problems, and its intended purpose is to provide an unlocking system that provides excellent security and smooth passage.

That is, the present invention has the following configuration:

[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 that authenticates a passerby detected by the first detection mechanism, and a second authentication mechanism that authenticates a passerby detected by the second detection mechanism;
and an unlocking mechanism that unlocks the door when a passerby authenticated by the first authentication mechanism is also authenticated by the second authentication mechanism.

According to the present invention configured in this manner, the door is ultimately unlocked when a passerby enters the second set distance. However, by shortening this second set distance, the door can be unlocked only for the short time it takes for a passerby to reach the door, which prevents security from being weakened by longer door unlocking times and at the same time reduces the risk of unintended unlocking from a position away from the door.
Furthermore, if the second set distance is shortened, for example, the authentication by the second authentication mechanism can be simplified and this second authentication can be completed within a short time before the passerby reaches the door, thereby preventing the passerby from having to wait in front of the door for it to be unlocked and ensuring smooth passage.
Furthermore, even if the authentication by the second authentication mechanism is simplified, since the authentication by the first authentication mechanism is performed in advance, the security relating to the authentication as a whole can be made sufficient.

[2]
The unlocking system according to [1], wherein the time required for authentication by the first authentication mechanism is longer than the time required for authentication by the second authentication mechanism.
With this configuration, the first authentication mechanism can perform sufficient authentication, so that the security of the authentication can be ensured even if the authentication by the second authentication mechanism is simplified.

[3]
The unlocking system according to [1], wherein 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.
In such a configuration, if the authentication in the second authentication mechanism is simplified by using a simple code, it becomes easy to complete the second authentication before a passerby reaches the door even if the second set distance is shortened, and smooth traffic flow can be ensured. At the same time, if complex attribute authentication is performed in the first authentication mechanism, the security related to the authentication as a whole can be made sufficient.

[4]
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.
With this configuration, the detection mechanism can be configured using a commonly used mobile device such as a smartphone, making it easy to introduce the unlocking system of the present invention. Specifically, the location of a passerby can be identified using the GPS of the mobile device, or the location of a passerby can be identified based on the reception strength of a beacon signal received by the mobile device from a beacon source installed near the door.

[5]
2. The unlocking system according to claim 1, wherein the first detection mechanism and the second detection mechanism are provided with 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.
With this configuration, the set distance can be adjusted more precisely.

[6]
The unlocking system of claim 1, wherein the second detection mechanism is provided 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.
With this configuration, authentication by the second authentication unit to unlock the door is performed only when the object detection sensor actually detects an object approaching the door, thereby reducing unintended unlocking.

[7]
The unlocking system according to [1], wherein each of the authentication mechanisms authenticates a passerby by communicating with a portable terminal carried by the passerby.
With this configuration, authentication is performed using a commonly used mobile terminal such as a smartphone, making it easy to introduce the unlocking system according to the present invention.

[8]
The unlocking system of [7], wherein the second authentication mechanism has a second authentication information acquisition unit that acquires the authentication information of the passerby by locally communicating with the mobile terminal, 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, the authentication will take a long time and may not be completed in time for the passerby to reach the door. However, with the configuration [8], the second authentication is performed via local communication, which makes it easier to create a local communication environment compared to Internet communication, so that the communication speed can be guaranteed and smooth traffic flow can be ensured even if the second set distance is shortened.

[9]
The present invention is used in an unlocking system including 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,
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 second authentication information to a second authentication mechanism that authenticates a passerby detected by the second detection mechanism.
Such a mobile terminal can achieve the same effects as the unlocking system described above.

[10]
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.
Such an authentication server can achieve the same effects as the unlocking system described above.

[11]
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.
Such an unlock command device can achieve the same effects as the unlock system described above.

[12]
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.
Such a door sensor device can achieve the same effects as the unlocking system described above.

The present invention, configured in this way, can provide an unlocking system that is excellent in terms of security and smooth passage.

1 is an overall schematic diagram of an unlocking system according to an embodiment of the present invention; FIG. 2 is an overall schematic diagram of the unlocking system according to the embodiment; FIG. 2 is a functional block diagram showing functions of the unlocking system according to the embodiment. 11 is a flowchart showing the operation of attribute authentication in the embodiment. 6 is a flowchart showing a code authentication operation in the embodiment. FIG. 11 is an overall schematic diagram of an unlocking system according to a second embodiment. FIG. 11 is an overall schematic diagram of an unlocking system according to a third embodiment. FIG. 13 is a functional block diagram showing functions of an unlocking system according to a third embodiment. FIG. 13 is an overall schematic diagram of an unlocking system according to a fourth embodiment. FIG. 13 is an overall schematic diagram of an unlocking system according to a fifth embodiment.

The first embodiment of the human detection device according to the present invention will be described below with reference to the drawings.

[First embodiment]
1. System Overview The unlocking system according to this embodiment unlocks a door X (here, an automatic door) installed at the entrance of an apartment complex, office, factory, etc., so that only authorized people can pass through. This system will be described using a delivery company that delivers packages to the apartment complex as an example of the authorized passers-by.

In this embodiment, the locked state of an automatic door refers to a state in which the door does not automatically open to passersby, and the unlocked state refers to a state in which the door opens automatically. The door may also be a manual door.

2. System Configuration 2-1. Overall Configuration As shown in Figs. 1 and 2, this unlocking system 100 is configured using a mobile terminal 1 carried by a passerby, an authentication server 2 that authenticates the passerby, and an unlock command device 3 that unlocks the door X.

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 capable of communicating with external devices via Internet communication using a communication network N and local communication such as BLE.

As shown in Figure 3, this mobile terminal 1 performs functions such as a signal receiving unit 11, a position determination unit 12, a first authentication information transmitting unit 13, a first authentication information storage unit 14, a second authentication information transmitting unit 15, and a second authentication information storage unit 16, by the CPU and peripheral devices working together in accordance with a predetermined program stored in the memory.
The configuration of each of these parts will be described in detail below.

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.

The signal transmitter T here is a short-range communication module (here, a BLE module) provided in the unlock command device 3 that is invisibly attached to the door X. The signal transmitter T may be provided separately from the unlock command device 3, for example, on a wall near the door X.

The beacon signal indicates, for example, the device ID or installation coordinates of the unlock command device 3 or the signal transmitter T, and is transmitted at a predetermined interval. Note that the beacon signal may be a signal using a short-range wireless communication technology other than BLE (such as Bluetooth or Wi-Fi).

2-2-2. Position determination unit 12
The position determination unit 12 determines whether the portable terminal 1 (actually, a passerby carrying the portable terminal 1) is within a first set distance from the door X, and whether the portable terminal 1 is within a second set distance that is set shorter than the first set distance, based on the communication between the signal transmitter T and the signal receiving unit 11. 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.

The beacon signal used here uses BLE, which has low directivity. The RSSI of this beacon signal attenuates the further it gets in each direction from door X, where signal transmitter T is installed, at the center.

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

The RSSI reference value is a reference value that is set based on the RSSI value measured in advance at a position that is the set distance away from the door X. The RSSI reference value may be set, for example, based on a correlation between the distance and the RSSI that is determined in advance. The RSSI reference value here is stored in advance in a specified area of the memory of the mobile terminal 1, but may also be included in the beacon signal.

Here, a first RSSI reference value at the first set distance and a second RSSI reference value at the second set distance are set as the RSSI reference values. 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.

If the RSSI measurement value is equal to or greater than the first RSSI reference value, the position determination unit 12 determines that the passerby is within a first set distance, and if not, determines that the passerby is farther than the first set distance. If the RSSI measurement value is equal to or greater than the second RSSI reference value, the position determination unit 12 determines that the passerby is within a second set distance, and if not, determines that the passerby is farther than the second set distance.

In addition, a considerable difference is provided between each set distance or between each RSSI reference value so that people within each set distance can be detected separately even if there are influences such as individual differences in the mobile terminal 1 or reflected waves of the beacon signal.

The signal receiving unit 11 and the position determining unit 12 of this embodiment described above correspond to the first detection mechanism D1 and the second detection mechanism D2 in the claims.

2-2-3. First authentication information transmission unit 13
The first authentication information transmitting unit 13 transmits first authentication information to the authentication server 2 via Internet communication when the position determining unit 12 determines that a passerby is located within a first set distance from the door X, that is, when a passerby is detected by the first detection mechanism D1. The first authentication information transmitted here is pre-stored in a first authentication information storage unit 14 set in a predetermined area of the memory of the mobile terminal 1.

The first authentication information is information for identifying the identity of the passerby. In this embodiment, the first authentication information includes, for example, a company number that identifies the company to which the passerby (delivery company) belongs as attribute information.

Attribute information is information for directly or indirectly identifying the attributes of passersby, such as affiliation, job responsibilities, job title, employee number, membership status, etc. Attribute information may not only be public information such as this, but also personal information such as name, address, and personal number.

2-2-4. Second authentication information transmission unit 15
The second authentication information transmitting unit 15 transmits second authentication information to the unlocking command device 3 via local communication when the position determining unit 12 determines that a passerby is located within a second set distance from the door X, that is, when a passerby is detected by the second detection mechanism D2. The second authentication information transmitted here is stored in a second authentication information storage unit 16 set in a predetermined area of the memory of the mobile terminal 1.

The second authentication information, like the first authentication information, is information for identifying the identity of a passerby. In this embodiment, the second authentication information is an assignment code assigned by the authentication server 2, and is information for identifying whether or not a person has been successfully authenticated by the authentication server 2 using the first authentication information. The second authentication information may also include attribute information stored in the second authentication information storage unit 16.

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

This authentication server 2 performs functions such as a first authentication information acquisition unit 21, a first registration information acquisition unit 22, a first registration information storage unit 23, a first judgment unit 24, a code assignment unit 25, etc., by the CPU and peripheral devices working together in accordance with a predetermined program stored in the memory.
The configuration of each of these parts will be described in detail below.

2-3-1. First authentication information acquisition unit 21
The first authentication information acquisition unit 21 acquires first authentication information from a passerby detected by the first detection mechanism D1, and here receives the first authentication information from the first authentication information transmission unit 13.

2-3-2. First registration information acquisition unit 22
The first registration information acquisition unit 22 acquires first registration information indicating passersby who are permitted to pass through the door X.

The first registration information is registered in advance by, for example, the management company or security company of the apartment building, and includes attribute information of passersby who are allowed to pass through (here, the delivery company's business number). It may also include other information, such as the personal numbers of apartment residents, or business numbers or employee numbers of other businesses that visit the building, but the first registration information must be at least comparable to a part of the first authentication information.

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.

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 passerby detected by the first detection mechanism D1 with the first registration information acquired by the first registration information acquisition unit 22, and judges whether the passerby detected by the first detection mechanism D1 is a person permitted to pass through door X.

The first judgment unit 24 here compares the attribute information of the passerby contained in the first authentication information with the attribute information contained in the first registration information, and if there is a match, it judges that the passerby detected by the first detection mechanism D1 is a person permitted to pass through door X, and if there is no match, it judges that the passerby is not permitted to pass.

2-3-5. Code assignment unit 25
The code assigning unit 25 assigns an assignment code to a passerby who is determined by the first judging unit 24 to be a person permitted to pass through the door X. Specifically, the code assigning unit 25 transmits an assignment code (referred to as a code in the claims) stored in advance in a predetermined area of the memory of the authentication server 2 to the mobile terminal 1, for example, via Internet communication. The assigned assignment code serves as information for identifying the passerby to whom the assignment code has been assigned as a person authenticated by the authentication server 2.

The assigned code is a code required to unlock the door X, and in this case is a unique password that is predetermined for each unlock command device 3. The assigned code may be a one-time password generated by the code assigning unit 25, etc.

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

2-4. Unlock command device 3
1 to 3, the unlock command device 3 is attached to, for example, the door X without a door latch, and includes a housing (not shown) and an information processing device (not shown) housed in the housing. The information processing device is a computer equipped with a CPU, memory, a communication interface, etc. The information processing device is configured to be able to communicate with external devices via local communication such as BLE.

Furthermore, the unlocking designation device of this embodiment is equipped with the aforementioned signal transmitter T within the housing.

The information processing device performs functions such as a second authentication information acquisition unit 31, a second registration information acquisition unit 32, a second registration information storage unit 33, a second judgment unit 34, and an unlocking signal transmission unit 35 by the CPU and peripheral devices working together in accordance with a predetermined program stored in the memory.
The configuration of each of these parts will be described in detail below.

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

2-4-2. Second registration information acquisition unit 32
The second registration information acquisition unit 32 acquires second registration information indicating a passerby who is permitted to pass through the door X. When the second authentication information acquisition unit 31 acquires second authentication information, the second registration information acquisition unit 32 acquires second registration information from the second registration information storage unit 33 that can be compared with the second authentication information.

Here, the second registration information is a unique password (hereinafter, referred to as a setting code) that is predetermined for each unlock command device 3. Note that the second registration information may be anything that can be compared with at least a part of the first authentication information.

2-4-3. Second registration information storage unit 33
The second registration information storage section 33 is set in a predetermined area of the memory of the information processing device, and stores the second registration information in advance.

2-4-4. Second judgment unit 34
The second judgment 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 registration information acquired by the second registration information acquisition unit 32, and judges whether the passerby detected by the second detection mechanism D2 is a person permitted to pass through door X.

Here, the second judgment unit 34 compares the assigned code held by the passerby with the set code held by the unlock command device 3, and if they match, it judges that the passerby detected by the second detection mechanism D2 is a person permitted to pass through the door X, and if they do not match, it judges that the person is not permitted to pass.

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

In this embodiment, the authentication contents are made different between the first authentication (attribute authentication) and the second authentication (code authentication) so that the time required for the second authentication is shorter than the time required for the first authentication.

2-4-5. Unlock signal transmission unit 35
The unlocking signal transmitting unit 35 transmits an opening/closing command signal to the door X opening/closing drive device when the first judgment unit 24 judges that the passerby detected by the first detection mechanism D1 is a person permitted to pass through the door X, and when the second judgment unit 34 judges that the passerby detected by the second detection mechanism D2 is a person permitted to pass through the door X.

The second authentication mechanism A2 in this embodiment performs authentication using the assignment code that is assigned when authentication by the first authentication mechanism A1 is successful, so if this authentication is successful, authentication by both the first authentication mechanism A1 and the second authentication mechanism A2 is successful. Therefore, the unlocking signal transmission unit 35 in this embodiment determines that authentication by the first authentication mechanism A1 is also successful when authentication by the second authentication mechanism A2 is successful.

As described above, the unlocking signal transmission unit 35 in this embodiment corresponds to the unlocking mechanism L in the claims.

3. operation

Below, we will explain the operation of the first authentication and the second authentication when the passerby is a delivery company, with reference to Figures 4 and 5.

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

As the delivery company approaches door X, the RSSI measurement value of the beacon signal gradually increases. Then, 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 company is within a first set distance from door X (step S12), and the first authentication information transmission unit 13 attempts to communicate with the authentication server 2 over the Internet.

When Internet communication is established (step S13), the first authentication information transmission unit 13 links the first authentication information of the delivery company with information for identifying the door X through which the delivery company is passing, and transmits the information to the first authentication information acquisition unit 21 (step S14). Here, the device ID of the unlock command device 3 indicated by the beacon signal is linked to the first authentication information as information for identifying the door X.

When the first authentication information acquisition unit 21 receives the first authentication information, the first registration information acquisition unit 22 checks the device ID linked to the first authentication information and identifies the door X through which the passerby is about to pass. Then, the first registration information indicating permission to pass through that door X is acquired from the first registration information storage unit 23 (step S15).

The first judgment unit 24 searches the first registration information acquired by the first registration information acquisition unit 22, and judges whether there is any first registration information that includes the company number indicated in the first authentication information, i.e., whether the delivery company is authorized to pass through (step S16).

When the first determination unit 24 determines that the delivery company is permitted to pass through, the code assignment unit 25 transmits an assignment code to the mobile terminal 1. The assignment code received by the mobile terminal 1 is stored in the second authentication information storage unit 16 as second authentication information (step S17). This completes the first authentication.

3-2. Second authentication (code authentication)
If the delivery company 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 location determination unit 12 determines that the delivery company is within a 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.

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

When the second authentication information acquisition unit 31 receives the grant code, the second registration information acquisition unit 32 acquires the setting code, and the second judgment unit 34 judges whether or not to match the grant code with the setting code, i.e., whether or not the delivery company is authorized to pass (step S25).

If the second judgment unit 34 judges that the delivery company is authorized to pass through, the unlocking signal transmission unit 35 transmits an opening/closing command signal to the opening/closing drive device to open the door X (step S26). This completes the second authentication, and the delivery company can pass through the door X to perform the delivery.

4. Effects With the unlocking system 100 configured in this manner, the door X is finally unlocked when a passerby enters the second set distance, which is set to be shorter, so that the door X can be unlocked only for a short time until the passerby reaches the door X, thereby preventing security from being weakened due to a longer unlocking time for the door X. At the same time, the risk of unintended unlocking from a position far away from the door X can be reduced.

Since the second authentication mechanism A2 performs simple code authentication, this second authentication can be completed within a short time before a passerby reaches door X, preventing a situation in which a passerby has to wait in front of the door for it to be unlocked and ensuring smooth traffic flow.

Authentication by the second authentication mechanism A2 is performed via local communication between the unlock command device 3 and the mobile terminal 1, so it is unlikely that a situation will arise in which authentication takes a long time due to the network environment.

Furthermore, even if simple code authentication is performed by the second authentication mechanism A2, attribute authentication is performed in advance by the first authentication mechanism A1, so the security related to authentication as a whole is sufficient. Also, since the time the door is unlocked does not increase even if the first set distance is increased, it is easy to operate the system by lengthening the first set distance and adopting complex attribute authentication by the first authentication mechanism A1.

The unlocking system is configured using the mobile device 1 of the passerby, making the system easy to implement. By using the mobile device 1, authentication can be performed on passersby who are within a set distance while they are moving, ensuring smooth traffic flow.

Because RSSI is used, the distance measurement accuracy indoors is better than, for example, when the GPS of the mobile terminal 1 is used to determine the distance between door X and a passerby.

Authentication is performed using the various authentication information pre-stored in the mobile terminal 1, which is convenient as it supports hands-free authentication.

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

The distance measurement unit measures the measured distance based on the RSSI measurement value. For example, the distance measurement unit calculates the measured distance from the RSSI measurement value based on a correlation between the RSSI and distance calculated in advance. The position determination unit then compares the measured distance with each set distance and determines whether or not a passerby is within each set distance.

In this embodiment, the signal receiving unit, the distance measuring unit, and the position determining unit correspond to the first detection mechanism D1 and the second detection mechanism D2 in the claims.

An unlocking system configured in this way would enable more precise adjustment of the set distance. In addition, by estimating the speed of passersby based on the measured distance, the door control unit would be able to determine whether or not a passerby intends to pass through and then make an unlocking decision.

Here, the signal receiving unit and distance measuring unit function as a distance measuring sensor that measures the distance between the door and the passerby, but the distance between the door and the passerby may also be measured using a distance measuring sensor that uses, for example, LiDAR, RADAR, or ultrasound installed around the door.

[Third embodiment]
As shown in FIG. 6, the portable terminal 1 of this embodiment further functions as a position specifying section for specifying the position of a passerby, in addition to the distance measuring section described above.

The signal receiving unit 11 of this embodiment receives beacon signals from two signal transmitters T1 and T2 installed in different locations. The two signal transmitters T1 and T2 are attached to a wall on which door X is installed, with door X on either side of the wall. The beacon signal also includes information about at least the installation coordinates of the signal transmitters.

The distance measurement unit measures the distance between each of the signal transmitters T1, T2 and passersby based on the beacon signals received from each of the signal transmitters T1, T2.

The position identification unit checks the installation coordinates of the signal transmitters T1 and T2 indicated by the beacon signal received by the signal receiving unit 11, and identifies the position (planar coordinates) of the passerby based on these two installation coordinates and the measured distance measured by the distance measuring unit.

The position determination unit 12 of this embodiment determines whether or not a passerby is present 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 identified position of the passerby. Note that the position determination unit may simply determine whether or not a passerby is present within a first set distance or within a second set distance from door X.

In this embodiment, the signal receiving unit, distance measuring unit, position identifying unit, and position determining unit correspond to the first detection mechanism D1 and the second detection mechanism D2 in the claims.

With an unlocking system configured in this way, the scope in which each authentication is performed can be limited to the scope of each authentication area, further reducing the risk of unintended unlocking of door X.

In addition, by identifying the path of travel of passersby based on changes in their position over time, it becomes possible for the door control unit to infer whether or not the passerby intends to pass through and then make a decision to unlock the door. In addition, by recording the detected position and path of travel of passersby, this can be referenced when resetting the set distance and authentication area, further improving traffic smoothness and security.

The position identification unit may identify the position of a passerby based on beacon signals received by the signal receiving unit 11 from three or more signal transmitters. This allows the position of a passerby to be identified in more detail.

The location identification unit here identifies the location of a passerby based on the distance between the mobile terminal and a signal transmitter whose installation coordinates are known, but the method of location identification is not limited to this. For example, multiple signal transmitters may be installed around the door, and the RSSI values at each position around the door may be pre-learned, and the location of the mobile terminal may be directly identified based on the learning results. The location of a passerby may also be identified using other methods, such as using the GPS of the mobile terminal.

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

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 presence of the object. Here, the detection signal is transmitted to the position determination unit 12 via local communication.

The object detection sensor S here is a passive infrared sensor, but various types can be used, such as an active infrared sensor, a radar sensor using microwaves or millimeter waves, or a camera sensor using an image sensor.

In this embodiment, the position determination unit 12 determines that the passerby is within a first set distance if the RSSI measurement value is equal to or greater than the first RSSI reference value, and determines that the passerby is farther than the first set distance if the RSSI measurement value is not equal to or greater than the first set distance. In addition, when the position determination unit 12 receives the detection signal, it determines that the passerby is within a second set distance, and otherwise determines that the passerby is farther than the second set distance.

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

In this way, an unlocking system using the object detection sensor S can detect passers-by more accurately than when using RSSI, which is more susceptible to external disturbances. This allows the second set distance to be set more precisely, further reducing the unintentional unlocking of door X and more reliably preventing passers-by from waiting in front of the door for it to be unlocked.

Similar to the second detection mechanism D2, the first detection mechanism D1 may be configured using the object detection sensor described above or other distance measuring sensors. Furthermore, the functions 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 that determines whether or not a passerby is within a first set distance may be provided in the mobile terminal, and a second position determination unit that determines whether or not a passerby is within a second set distance may be provided in the door sensor device.

[Fifth embodiment]
The unlock 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.

The object detection sensor S detects an object present in a detection area set near the doorway area and outputs a detection signal indicating the presence of the object, and is physically similar to that described in the fourth embodiment. The detection area here is set within a second set distance, but is not limited to this.

The unlock signal transmission unit 35 here outputs an opening/closing command signal for the door X based on not only the judgment results of the first judgment unit 24 and the second judgment unit 34 but also on the detection signal output from the object detection sensor S. In other words, this door control unit transmits an opening/closing command signal to the opening/closing drive device of the door X to open the door X when the first judgment unit 24 and the second judgment unit 34 have judged that the detected passerby is a person permitted to pass and when a person is detected by the object detection sensor.

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

With an unlocking system configured in this way, door X is unlocked only when the body of a passerby is actually detected in front of the door, reducing the risk of unintended unlocking of door X. In addition, in this embodiment, a detection area is provided within the second set distance, so the unlocking time of door X can be further shortened, further enhancing security.

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 determining unit compares the RSSI measurement value of the first beacon signal with a first RSSI reference value to determine whether a passerby is located within a first set distance, and compares the RSSI measurement value of the second beacon signal with a second RSSI reference value to determine whether a passerby is located within a second set distance.

The second beacon signal here is not transmitted all the time, but is transmitted, for example, when a passerby is detected by the first detection mechanism, or when an object is detected by an object detection sensor provided in the unlock command device.

This way, the second beacon signal required to finally unlock the door is not constantly transmitted, reducing unintentional unlocking and improving security.

The second beacon signal may be constantly transmitted, in which case the signal receiving unit may receive the first beacon signal and the second beacon signal from separate signal transmitters. For example, if the first beacon signal is received from a signal transmitter installed away from the door and the second beacon signal is received from a signal transmitter installed closer to the door, it is possible to make it difficult for the second beacon signal to reach positions far from the door, thereby expanding the range in which authentication can be started while more reliably limiting the positions at which unlocking can be performed to the vicinity of the door.

The output amount of the second beacon signal may be set to be smaller than the output amount of the first beacon signal.

[Seventh embodiment]
The first and second set distances in this embodiment are set as distances (so-called journey distances) along a route taken by a person heading towards door X, as shown in FIG.

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

In this way, even if the movement path to the door where the device is installed is not a straight line, the first authentication can be performed at a position that takes the longest time to reach the door, and the second authentication can be performed at a position that takes the shortest time.

By using the position identification unit described in the third embodiment or the object detection sensor described in the fourth embodiment, each determination unit can accurately determine the position of pedestrians traveling along complex routes.

[Other embodiments]
Each detection mechanism may detect a person within a predetermined distance range, for example, a first detection mechanism may detect a person within a range between a first distance and a second distance, that is, a person within the first distance from the door and farther than the second distance.
This would prevent the door from being unlocked, for example, by a passerby passing through the door from the unlocked side and within the second set distance.

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

The first and second detection mechanisms may use a GPS function of the mobile device to determine the distance between the door and the person passing by, or may use an acceleration sensor or gyro sensor built into the mobile device to determine the approach from a position at the first set distance to a position at the second set distance.

The unlocking system may be provided with a third detection mechanism that detects a passerby within a third set distance and a third authentication mechanism that authenticates a passerby detected by the third detection mechanism, or may be provided with further detection and authentication mechanisms.

The first authentication acquisition unit or the second authentication acquisition unit may acquire and authenticate a password, biometric information, or the like input from an input device (such as a touch panel or a camera) of the mobile terminal. Furthermore, authentication may be performed by combining this with information previously stored in the mobile terminal.

The code assigning unit may change the type of assignment code to be assigned to the passerby depending on the content of the attribute information included in the first authentication information acquired by the first authentication information acquiring unit. The unlocking signal transmitting unit may change the control mode for the door (door opening time, opening/closing speed, degree of opening, etc.) depending on the type of assignment code. For example, the door opening time may be extended for passersby with attributes that are expected to move slowly, such as movers.

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.

The unlocking mechanism may have an opening and closing drive device that actually physically opens the door.

The unlocking system in each of the above embodiments is 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. Furthermore, the locations where each functional unit is physically located are not limited to the locations shown in each embodiment.

For example, the function of the first judgment unit or the second judgment unit may be performed by a mobile terminal. Also, the function of the second judgment unit may be performed by an authentication server. In this case, for example, if the unlocking command device is connected to the network by wire, the unlocking command device can obtain the result of the second authentication without being affected by the communication environment of the wireless network. Also, it becomes possible to operate in such a way that the unlocking command device transmits the grant code received from the mobile terminal via local communication to the authentication server.

In addition, if each detection mechanism uses an object detection sensor, the object detection sensor may be provided in an object detection device separate from the unlock command device.

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 receiving unit 12...Location determination unit 13...First authentication information transmitting unit 15...Second authentication information transmitting unit 2...Authentication server 21...First authentication information acquiring unit 24...First judgment unit 25...Code assigning unit 3...Unlocking command device 31...Second authentication information acquiring unit 34...Second judgment unit 35...Unlocking signal transmitting unit

Claims (11)

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 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 . The unlocking system according to claim 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. The unlocking system according to claim 1, wherein the first and second detection mechanisms determine whether or not a passerby is within the first and second set distances by communicating with a portable terminal carried by the passerby. The unlocking system according to claim 1, wherein the first and second detection mechanisms are equipped with distance measuring sensors that measure the distance between the door and a passerby, and detect a passerby based on the distance measured by the distance measuring sensors. 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. The unlocking system according to claim 1, wherein each of the authentication mechanisms authenticates a passerby by communicating with a mobile terminal carried by the passerby. 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. 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. 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. 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. 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.