Electric lock system

Abstract

To provide an electric lock system capable of suppressing erroneous authentication while improving security compared to conventional systems.SOLUTION: The electric lock system includes: an electric lock that is provided at an entrance of a building; an authentication device that performs authentication for unlocking operations; and a weight sensor that is provided at the outer portion of the entrance of the building and detects a weight acting on the outer portion as a detected weight and outputs it to the electric lock. When the authentication device accepts an unlocking request, the electric lock unlocks when the detected weight satisfies specified conditions.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to an electronic lock system. [Background technology]

[0002] A door is known that comprises a door panel, a sensor that acquires biometric information, and a biometric authentication device that authenticates the biometric information acquired by the sensor, where the sensor is hidden inside the door panel and the position of the sensor inside the door panel can be changed by remote control from outside the door panel, and the door can be opened when authentication by the biometric authentication device is successful (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2017 / 077563 Summary of the Invention [Problem to be solved by the invention]

[0004] Biometric authentication, for example, has concerns about false positives in the case of facial recognition, and there are security concerns in the case of fingerprint recognition due to the possibility of fingerprints being copied.

[0005] The present disclosure has been made in consideration of the above-mentioned circumstances, and aims to provide an electric lock system that can improve security while suppressing erroneous authentication. [Means for solving the problem]

[0006] One aspect of the present disclosure is an electric lock system that includes an electric lock installed at an entrance / exit of a building, an authentication device that performs authentication for unlocking operations, and a weight sensor that is installed at an outer portion of the entrance / exit of the building and detects a weight acting on the outer portion as a detected weight and outputs it to the electric lock, and when the authentication device accepts the unlocking request, the electric lock is unlocked if the detected weight satisfies predetermined conditions. [Brief description of the drawings]

[0007] [Figure 1] 1 is a schematic diagram showing the mechanical configuration of an electric lock system A. FIG. [Diagram 2] 2 is a schematic diagram showing a weight sensor in the electric lock system A. FIG. [Diagram 3] 2 is a block diagram showing the electrical configuration of the electric lock system A. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] An electric lock system A according to this embodiment is a system (anti-crime system) that is installed in a building H as shown in Fig. 1 and is responsible for crime prevention of the building H. As shown in the figure, the electric lock system A includes an authentication device 1, a weight sensor 2, and an electric lock 3.

[0009] The building H is a residential detached house or an apartment building, but may also be an office building or a commercial building used by a company for business purposes. The building H has a front door D. The front door D is an entrance to the building H.

[0010] In the electric lock system A, the authentication device 1 is a device that accepts an unlocking operation performed by a user (visitor) such as a resident of the building H, and performs a predetermined authentication process for the unlocking operation. As shown in the figure, the authentication device 1 is provided outside the building H and in a location near the entrance door D. The authentication device 1 is compatible with various types of unlocking operations.

[0011] The authentication device 1 performs, for example, face authentication, fingerprint authentication, and password authentication as authentication processing. In face authentication, a photograph of the visitor's face is taken to determine whether the visitor is a user who has been registered in advance. In fingerprint authentication, the visitor's fingerprint is detected to determine whether the visitor is a user who has been registered in advance.

[0012] In password authentication, it is judged whether the password acquired from the visitor matches a password registered in advance. The password may be acquired by having the visitor enter the password directly using the numeric keypad, by reading it from a card inserted in the authentication device 1, or by acquiring it via communication from a communication terminal such as a smartphone or a remote control.

[0013] The authentication device 1 determines whether to permit or reject the unlocking operation based on the authentication process. As shown in Fig. 2, the authentication device 1 is electrically connected to an electric lock 3. When the authentication device 1 permits the unlocking operation, it outputs an unlocking request to the electric lock 3 as a first-stage authentication signal.

[0014] 1, the weight sensor 2 is provided at an outer portion of an entrance door D (entrance) in a building H. More specifically, the weight sensor 2 is provided at an outer lower portion of the entrance door D (entrance), i.e., on the floor surface. The weight sensor 2 detects the weight of a person or the like who comes in front of the entrance door D (entrance) outside the building H, i.e., the weight of a placed object acting on the outer lower portion (outer portion) of the entrance door D (entrance).

[0015] 2, the weight sensor 2 is electrically connected to the electric lock 3. The weight sensor 2 outputs the weight acting on the lower outer part (outer part) of the front door D (entrance) to the electric lock 3 as a detected weight.

[0016] The weight sensor 2 may be a single sensor, but may also include multiple weight element sensors 2a-2h, for example, as shown in Fig. 3. As shown in the figure, the multiple weight element sensors 2a-2h are adjacently arranged in a predetermined array on the floor (entrance floor) outside the entrance door D (entrance).

[0017] 3 shows an arrangement pattern of the multiple weight element sensors 2a-2h in which a total of eight weight element sensors 2a-2h are arranged in two rows, one closer to the front door D and one farther away. The row closer to the front door D is a first row in which a total of four weight element sensors 2a-2d are arranged in a row parallel to the front door D. The row farther away from the front door D is a second row in which a total of four weight element sensors 2e-2h are arranged in a row parallel to the row closer to the front door D, at a position farther away from the front door D than the row closer to the front door D.

[0018] The electric lock 3 is provided at the entrance door D (entrance) of the building as shown in Fig. 1. The electric lock 3 has a mechanical mechanism (locking mechanism) that fixes (locks) the entrance door D (entrance) in a closed state. The electric lock 3 has a first operating mechanism (not shown) that mechanically operates the locking mechanism. The first operating mechanism is a well-known key cylinder.

[0019] The electric lock 3 has a first operating mechanism and a second operating mechanism that electrically operates the lock mechanism. The second operating mechanism is the electric lock drive unit 3b shown in Fig. 2, and will be described in detail later. The electric lock 3 switches the front door D (entrance) between a state in which it can be freely opened and closed and a state in which it cannot be opened and closed by being operated by the first operating mechanism or the second operating mechanism.

[0020] 2, the electric lock 3 is electrically connected to the authentication device 1 and the weight sensor 2. The electric lock 3 sets the state of the front door D (entrance) to a state in which it can be opened and closed freely or cannot be opened and closed, based on an unlocking request input from the authentication device 1 and a detected weight input from the weight sensor 2.

[0021] 2, the electric lock 3 includes a control unit 3a and an electric lock driving unit 3b. The control unit 3a is electrically connected to the authentication device 1 and the weight sensor 2 outside the electric lock 3, and is electrically connected to the electric lock driving unit 3b inside the electric lock 3. The control unit 3a includes a memory area 3c with a predetermined memory capacity.

[0022] The control unit 3a is, for example, a microcomputer. The storage area 3c is an internal storage area of ​​the control unit 3a. In addition to the control program executed by the control unit 3a, the storage area 3c prestores control information required for controlling the electric lock driving unit 3b. The control information is a judgment condition (second authentication condition) related to the detected weight input from the weight sensor 2.

[0023] The control unit 3a performs a second authentication process on the detected weight of the weight sensor 2, triggered by an unlocking request input from the authentication device 1. The control unit 3a operates the electric lock driving unit 3b based on the result of the second authentication process. More specifically, when an unlocking request is input from the authentication device 1 as a result of the first authentication process, the control unit 3a executes the second authentication process to evaluate whether the detected weight satisfies the second authentication condition.

[0024] The electric lock driving unit 3b is electrically connected to the control unit 3a and is a power source that mechanically sets the electric lock 3 to a locked or unlocked state. The electric lock driving unit 3b is composed of, for example, a motor and a driving circuit that drives the motor.

[0025] The drive circuit generates a drive signal based on an operation signal input from the control unit 3a and outputs the drive signal to the motor. The motor operates based on the drive signal to generate rotational power, and the electric lock 1a is set to a locked or unlocked state by the rotational power.

[0026] The operation of the electric lock system A according to this embodiment will be described in detail. In the electric lock system A, as a result of the authentication process (first authentication process) in the authentication device 1 and the second authentication process in the electric lock 3, the electric lock driving unit 3b is operated.

[0027] When the authentication device 1 performs a predetermined first authentication process for an unlocking operation performed by a user (visitor) and outputs an unlocking request to the electric lock 3 as a result of the first authentication process, the control unit 3a of the electric lock 3 performs a second authentication process for the detected weight of the weight sensor 2 based on the unlocking request. The second authentication process evaluates whether or not the detected weight satisfies a second authentication condition pre-stored in the memory area 3c.

[0028] The second authentication condition is, for example, as shown in Figure 3, to evaluate the magnitude relationship between the weight (first weight) acting on one weight element sensor 2c and the weight (second weight) acting on the other weight element sensor 2h out of a total of eight weight element sensors 2a to 2h, for example, whether the ratio (proportion) is within a specific ratio range (specific ratio range).

[0029] Also, the sensor that detects the first weight may be fixedly set to one of the weight element sensors 2a to 2h, and the sensor that detects the second weight may be any sensor other than the sensor that detects the first weight. Also, the sensor that detects the second weight may be fixedly set to one of the weight element sensors 2a to 2h, and the sensor that detects the first weight may be any sensor other than the sensor that detects the second weight. For example, when the sensor that detects the first weight is weight element sensor 2c, the sensor that detects the second weight may be any one of 2a, 2b to 2h except for weight element sensor 2c.

[0030] The second authentication condition may be, instead of the ratio (proportion) between the first weight and the second weight, to evaluate whether the weight to be adopted for a specific one or more weight element sensors out of the total of eight weight element sensors 2a to 2h is within a predetermined specific weight range.

[0031] If the detected weight satisfies the second authentication condition as a result of the second authentication process, the control unit 3a operates the electric lock driving unit 3b to set the electric lock 3 to an unlocked state. If the detected weight does not satisfy the second authentication condition as a result of the second authentication process, the control unit 3a keeps the electric lock 3 in a locked state without operating the electric lock driving unit 3b.

[0032] The system comprises an electric lock 3 installed on the front door D (entrance / exit) of a building H, an authentication device 1 which performs a first authentication process in response to an unlocking operation by a user (visitor), and a weight sensor 2 which is installed on the outer part of the front door D (entrance / exit) of the building H and detects the weight acting on the outer part as a detected weight and outputs it to the electric lock 3. When the authentication device 1 allows the unlocking operation as a result of the first authentication process, the electric lock 3 unlocks when the detected weight of the weight sensor 2 satisfies a second authentication condition (predetermined condition).

[0033] In addition to the first authentication process performed by the authentication device 1, the electric lock 3 performs a second authentication process regarding the detected weight at the outer part of the front door D (entrance / exit), thereby providing an electric lock system A that can improve security while suppressing erroneous authentication.

[0034] The weight sensor 2 is provided on the outer lower part of the front door D (entrance) and detects the weight of a placed object such as a user (visitor) as a detected weight. That is, according to this embodiment, when a placed object such as a user (visitor) approaches the vicinity of the front door D (entrance), the user positions himself / herself on the weight sensor 2 and steps on it, so that the weight of the user can be easily detected.

[0035] The weight sensor 2 includes a plurality of weight element sensors 2a-2h that detect the detected weight, and the electric lock 3 is unlocked when the magnitude relationship between the detected weights input from the weight element sensors 2a-2h satisfies a second authentication condition (predetermined condition). According to this embodiment, the second authentication condition is relatively complicated, so that security can be further improved.

[0036] The electric lock 3 is unlocked when a weight within a predetermined range acts on a specific weight element sensor among the multiple weight element sensors 2a to 2h. Since the second authentication condition is relatively simple, the load of the second authentication process on the electric lock 3 can be reduced.

[0037] In the example of Fig. 3 of this embodiment, the electric lock 3 is unlocked when the ratio of the two detected weights input from the two weight element sensors 2c and 2h satisfies the second authentication condition (predetermined condition). For example, when the weight (second weight) acting on the weight element sensor 2h is greater than the weight (first weight) acting on the weight element sensor 2c as a ratio of the detected weights, that is, when the foot pressure of one of the users acting on the weight element sensor 2h is greater than the foot pressure of the other of the users acting on the weight element sensor 2c, the electric lock 3 is unlocked because the ratio of the two detected weights satisfies the second authentication condition (predetermined condition). According to this embodiment, the second authentication condition is relatively complicated, so that security can be further improved.

[0038] According to this embodiment, the weight sensor 2 is provided on a floor mat placed on the outer lower part of the entrance door D (entrance). According to this embodiment, the weight sensor 2 can be easily installed in the building H.

[0039] The present disclosure is not limited to the above-described embodiment, and various modifications are possible. (1) In the above embodiment, some specific examples of the second authentication condition in the second authentication process are described, but the present disclosure is not limited thereto. The second authentication condition related to the detected weight may be other than those described in the embodiment.

[0040] (2) In the above embodiment, the weight element sensors 2a to 2h are provided on a floor mat placed on the outside lower part of the entrance door D (entrance), but the present disclosure is not limited to this. For example, the weight sensor 2 may be buried in the ground on the outside lower part of the entrance door D (entrance).

[0041] (3) In the present embodiment, the weight sensor 2 is provided on the lower outer side of the entrance door D (entrance), but the present disclosure is not limited to this. For example, the weight sensor 2 may be a single weight element sensor.

[0042] (4) In this embodiment, the weight sensor 2 is provided on the outside lower part of the front door D (entrance), but the present disclosure is not limited to this. The installation position of the weight sensor 2 is not limited to the outside lower part of the front door D (entrance), and any outside part of the front door D (entrance) is sufficient. For example, the weight sensor 2 may be provided in the vicinity of the authentication device 1, that is, on the outside side of the front door D (entrance).

[0043] (5) In the present embodiment, the electric lock 3 performs the second authentication process, but the present disclosure is not limited to this. The second authentication process may be performed by a second authentication unit provided separately from the electric lock 3, and the result of the second authentication process may be provided to the electric lock 3. [Explanation of symbols]

[0044] A... Electric lock system, C... Entrance door (entrance / exit), H... Building, 1... Authentication device, 2... Weight sensor, 2a to 2h... Weight element sensor, 3... Electric lock 1, 2 and 3

Claims

1. An electric lock is installed at the entrance of the building; an authentication device for performing authentication for an unlocking operation; a weight sensor provided in an outer portion of the entrance in the building, detecting a weight acting on the outer portion as a detected weight and outputting the detected weight to the electric lock; The electric lock is an electric lock system that unlocks the electric lock when the authentication device permits the unlocking operation and the detected weight satisfies a predetermined condition.

2. The electric lock system according to claim 1 , wherein the weight sensor is provided at an outer lower part of the entrance and detects the weight of a placed object as the detected weight.

3. the weight sensor includes a plurality of weight element sensors each detecting the detected weight, 3. The electric lock system according to claim 2, wherein the electric lock is unlocked when the magnitude relationship of the plurality of detected weights input from the plurality of weight element sensors satisfies the predetermined condition.

4. The electric lock system according to claim 3 , wherein the electric lock is unlocked when a weight within a predetermined range acts on a specific one of the weight element sensors.

5. Two weight element sensors are provided, 4. The electric lock system according to claim 3, wherein the electric lock is unlocked when a ratio of the two detected weights input from the two weight element sensors satisfies the predetermined condition.

6. 4. The electric lock system according to claim 2, wherein the weight sensor is provided on a floor mat arranged on the lower outer side.

Images