Individual identification device

Abstract

To fix a sensor at a set position.SOLUTION: An individual identification device for identifying an individual from information acquired by a sensor comprises: a base provided with a worm; a rotation part provided with the sensor and having a worm wheel biting with the worm; and a knob attachable to and detachable from an end of the worm and capable of rotating the worm from the outside. In response to an operation of the knob by a person, the rotation of the worm rotates the worm wheel to change the orientation of the sensor.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to personal identification devices. [Background technology]

[0002] As a sensor for monitoring and identifying individuals in a private room such as a restroom, a personal identification device incorporating a human presence sensor that detects entry and exit to the private room and a face recognition camera that identifies the user is being used. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2021-175866 A Summary of the Invention [Problem to be solved by the invention]

[0004] As shown in Fig. 9, the personal identification device, with a built-in face recognition camera and human presence sensor, is structured to rotate left and right together with the cover around the ring structure of the body part as the central axis. This allows the personal identification device to take pictures at an angle adjusted to make it easy to recognize the user's face, regardless of the layout of the restroom stall, etc.

[0005] In addition, as shown in Fig. 10, in the rotating structure used in the personal identification device, after adjusting the angle of view of the face recognition camera and the human presence sensor, the fixing screw at the bottom of the sensor cover is tightened to fix it in place. At this time, the personal identification device has a wedge lock mechanism inside the sensor cover that makes it difficult for the screw to loosen, allowing it to be fixed at the adjusted angle.

[0006] A wedgelock mechanism is a washer consisting of two washers with fine radial ribs on the front and sawtooth ribs on the back. With a wedgelock mechanism, if a force is applied in the loosening direction after a screw is tightened using this washer, friction will be generated between the screw head and the ribs on the surface of the washers, causing the two washers to shift, resulting in a gap between the two washers and generating a force in the direction that stretches the screw. In this case, with the wedgelock mechanism, as the screw is stretched, a force that tries to return to its original position is also generated, so a force is applied in the direction that the screw is tightened, increasing the fastening force. In other words, the wedgelock mechanism is designed to self-lock when the screw loosens.

[0007] However, the wedge lock mechanism only works perfectly when the material is metal. In other words, if the material that the washer is sandwiched between is metal, friction occurs between the surface ribs and the mating surfaces of the washer, causing them to move out of alignment. On the other hand, if the mating material is resin, which is softer than the metal washer, strong friction can wear down the contact surface of the resin, causing the washer to slip, and the wedge lock mechanism may not work properly.

[0008] However, the wedge lock mechanisms used in personal identification devices are often made of resin, and will not rotate when subjected to unintentional light external forces such as rubbing against clothing or hitting with a hand or cleaning tool; however, there is an issue that they will rotate if a large force is applied, as when trying to turn them intentionally. [Means for solving the problem]

[0009] The personal identification device disclosed herein is a personal identification device that identifies an individual from information acquired by a sensor, and comprises a base on which a worm is provided, a rotating part on which the sensor is provided and which has a worm wheel that meshes with the worm, and a knob that is detachable from the end of the worm and can rotate the worm from the outside, and in response to a person operating the knob, the worm rotates and the worm wheel rotates, thereby changing the orientation of the sensor. Effect of the Invention

[0010] The personal identification device can fix the sensor at a set position. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram showing a configuration of a personal identification device according to the present disclosure. [Diagram 2] 1 is a perspective view showing a configuration of a personal identification device according to the present disclosure. [Diagram 3] 1 is a front perspective view showing an internal configuration of a personal identification device according to the present disclosure; [Figure 4] FIG. 2 is a rear perspective view showing the internal configuration of a personal identification device according to the present disclosure. [Diagram 5] 1 is an enlarged view showing a configuration of a personal identification device according to the present disclosure. [Figure 6] FIG. 13 is a diagram showing a flow for setting up a personal identification device according to the present disclosure. [Figure 7] 13 illustrates removal of the lid from the base in accordance with the present disclosure. [Figure 8] 13A and 13B are diagrams showing attachment of a knob to a base according to the present disclosure. [Figure 9] FIG. 1 is a perspective view of a related personal identification device; [Figure 10] FIG. 2 is a perspective view of the lower part of a related personal identification device; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] First embodiment An example of the configuration of the personal identification device 1 will be described below with reference to Fig. 1. The personal identification device 1 includes a base 11 having a worm 111 that can be operated by operating a knob 112 from the outside, a worm wheel 121 that is a gear that operates by meshing with the worm 111, and a rotating unit 12 that is a rotation unit that has a sensor 122. In the personal identification device 1, the worm 111 can be operated by a person, and the rotating unit 12 can be rotated as the worm wheel 121 rotates.

[0013] That is, in the personal identification device 1, a worm gear mechanism is formed by the worm 111 and the worm wheel 121. Note that the personal identification device 1 can also be considered as having a structure in which the worm gear mechanism formed by the worm 111 and the worm wheel 121 is incorporated between the rotating part 12 and the base part 11 having a ring structure serving as the rotation axis.

[0014] Here, the worm gear mechanism has a property called self-locking, in which friction makes it very difficult to transmit rotation from the worm wheel 121 side to the worm 111 side. By utilizing this self-locking property, the personal identification device 1 can fix the worm wheel 121 and make it immovable even if the rotating part 12 is intentionally rotated by hand.

[0015] In the second embodiment described below, the sensor 122 built into the rotating unit 12 is described as having a face recognition camera and a human presence sensor, but the types of sensors are not limited to these, and the rotating unit 12 can have at least one sensor built into it.

[0016] Embodiment 2 Next, a detailed configuration of the personal identification device 2 will be described with reference to Figures 2(a) and 2(b). Here, Figure 2(a) is a perspective view showing the front side of the personal identification device 2, and Figure 2(b) is a view showing the rear side of the personal identification device 2 and a part of the inside of the personal identification device 2.

[0017] The personal identification device 2 includes a base 21 that is attached and fixed to a private room, and a rotating unit 22 that is a rotation unit that rotates relative to the base 21. A worm 211 is disposed on the base 21, and a worm wheel 221, a face authentication camera 222a, and a human presence sensor 222b are disposed on the rotating unit 22. In the personal identification device 2, the worm wheel 221 rotates by rotating the worm 211 in response to a human operation, and the rotating unit 22 rotates in response to the rotation of the worm wheel 221, changing the orientation of the face authentication camera 222a and the human presence sensor 222b.

[0018] 2(a) and 2(b), the explanation will be given assuming that the up-down direction of the personal identification device 2 placed in a private room is the Z direction, the front-back direction is the Y direction, and the left-right direction is the X direction. Note that the X, Y, and Z directions are perpendicular to each other.

[0019] 3, the base 21 includes a worm 211 disposed within the base 21 so that the X direction is the longitudinal direction, and a lid 212 (see FIG. 2a) attached to the tip of the worm 211 on the side surface of the base 21. Note that FIG. 3 is a perspective view showing the internal state of the personal identification device 2 in a state in which a knob 213, which will be described later, is attached in place of the lid 212, and a part of the base 21 and a part of the rotating part 22 are omitted in order to make the inside easier to understand.

[0020] 4 is a perspective view showing the internal state of the personal identification device 2 from the rear, with part of the base 21 and part of the rotating part 22 omitted to make the inside easier to understand. As shown in FIGS. 3 and 4, the worm 211 is composed of a shaft part 211a extending in the X direction and a tooth part 211b that meshes with a worm wheel 221 provided on the rotating part 22.

[0021] In this regard, of the shaft portion 211a, the end portion disposed on the surface of the base portion 21 is referred to as an end portion 211c, and the portion disposed on the inside of the base portion 21 is referred to as an intermediate portion 211d.

[0022] The shaft portion 211a is hexagonal in its entirety or at least in the vicinity of the end portion 211c. Here, the end portion 211c is formed on one side surface of the base portion 21 in the X direction, as shown in Fig. 2a, and is disposed within the recess 21a at the location of the recess 21a that is closed by the lid 212. Note that here, the recess 21a is assumed to have a rounded rectangular shape with two rounded corners when viewed from the X direction side.

[0023] As shown in FIGS. 3 and 4, the teeth portion 211b is arranged as spiral external teeth in a predetermined range of the intermediate portion 211d of the shaft portion 211a.

[0024] 2a, the lid 212 is disposed so as to cover the recess 21a formed on the side surface in the X direction of the base 21. Here, the recess 21a is a portion where the end 211c of the worm 211 is disposed, and by covering the recess 21a with the lid 212, it is possible to prevent a person from accidentally touching the end 211c of the worm 211.

[0025] Typically, the lid 212 is a rubber lid. Furthermore, the lid 212 has an outer shape that matches the shape of the recess 21a and does not rotate around the X-direction as an axis. Here, the outside of the lid 212 has the same size and shape as the recess 21a, that is, it is a rounded rectangular shape when viewed from the X-direction so as to fit into the recess 21a.

[0026] Furthermore, a hexagonal hole is formed on the inside of the lid 212, i.e., at a location in the recess 21a that abuts against the end 211c of the worm 211. As a result, in the base 21, by setting the lid 212 in the recess 21a, the end 211c of the worm 211 fits into the hexagonal hole formed on the inside of the lid 212.

[0027] At this time, the lid 212 itself fits into the shape of the recess 21a and is fixed, so the end 211c of the worm 211 is also fixed. In other words, even if a force is applied to the rotating part 22 and a rotating force is applied from the worm wheel 221 to the worm 211, the lid 212 fits in a state where it does not rotate relative to the base body, so that the rotation of the worm 211 can be stopped. As a result, in the personal identification device 2, when a force is applied to the rotating part 22, not only is the self-locking, but the worm wheel 221 is fixed by the lid 212 so as not to rotate, so that the rotating part 22 can be maintained in a fixed state.

[0028] Knob 213 is a part for manually rotating worm 211 by removing lid 212 from recess 21a and attaching it to end 211c of worm 211. Fig. 5 is a perspective view showing a part of personal identification device 2 in a state where lid 212 has been removed from base 21 and knob 213 has been attached.

[0029] For example, knob 213 has a gripping portion that is grasped by a person and a shaft portion that rotates in response to rotation of the gripping portion, and the tip of the shaft portion has a hexagonal hole. That is, with end portion 211c of worm 211 inserted into the hexagonal hole of knob 213, a person can rotate shaft portion 211a of worm 211 by rotating the gripping portion. That is, a person can rotate knob 213 to rotate worm wheel 221.

[0030] Next, the rotating part 22 will be described. As shown in Fig. 3 and Fig. 4, the worm wheel 221 is a wheel that rotates in the Z-axis direction and has external teeth 221a. The external teeth 221a of the worm wheel 221 mesh with teeth 211b of the worm 211 provided on the base part 21, and the worm wheel 221 rotates in response to the rotation of the worm 211.

[0031] 2(a), the face recognition camera 222a and the human presence sensor 222b are arranged vertically side by side in the rotating unit 22. Here, the face recognition camera 222a is arranged at the top and the human presence sensor 222b is arranged at the bottom, but the arrangement is not limited to this.

[0032] The face recognition camera 222a and the human presence sensor 222b simultaneously rotate around the Z axis as the rotating unit 22 itself rotates around the Z axis due to the rotation of the worm wheel 221. This allows the direction in which sensing is performed by the face recognition camera 222a and the human presence sensor 222b to be changed around the Z axis.

[0033] For example, the face recognition camera 222a is a camera for taking a picture of the face of a user who enters a private room and identifying the user from the facial features. As an example, the personal identification device 2 may be provided with a calculation unit that performs calculations to identify the user and a storage unit that stores the features, and the face recognition camera 222a may be connected to these units to transmit and receive information to identify the user. Alternatively, a computer that realizes the functions of the storage unit and the calculation unit may be prepared externally, and the face recognition camera 222a may be connected to the computer via a cable or via a network to directly transmit and receive information.

[0034] For example, the human presence sensor 222b is a camera for detecting that a user has entered a private room. As an example, the human presence sensor 222b may have a calculation unit for performing calculations to determine whether or not a person has entered a private room, a storage unit for storing a determination criterion, etc. Furthermore, when the human presence sensor 222b determines that a user has entered a private room, the user may be identified by the face authentication camera 222a.

[0035] FIG. 6 is a diagram illustrating a procedure for adjusting the angle of view of the face recognition camera and the human presence sensor by an administrator.

[0036] 7, the administrator removes the cover 212 from the recess 21a on the side surface of the base 21 (step S1). Then, as shown in FIG 8, the administrator attaches the knob 213 to the end 211c of the worm 211 (step S2).

[0037] Next, the worm 211 rotates in response to the operation of the knob 213 by the administrator (step S3). Then, the worm wheel 221 rotates in response to the rotation of the worm 211 (step S4). As a result, the face authentication camera 222a and the human sensor 222b also rotate together with the rotating unit 22 (step S5).

[0038] When the desired angle is reached, the manager stops rotating knob 213 (step S6). Next, the manager removes knob 213 from end 211c of worm 211 (step S7).

[0039] Thereafter, the administrator covers the recess 21a with the rubber cover 212 to prevent the worm 211 from rotating unintentionally (step S8).

[0040] As a result, in the personal identification device 2, even if an attempt is made to intentionally grab and turn the rotating part 22 with a hand after the angle has been adjusted, the wedge lock mechanism self-locks and the device will not rotate. Also, at this time, the shaft part 211a of the worm 211 is fixed in a state inserted into a hexagonal hole provided in the lid 212, and is therefore fixed to the base part 21 and will not rotate, and the worm wheel 221 is also fixed, so that rotation of the rotating part 22 can be suppressed.

[0041] From the above, with the rotation structure and fixing method of related personal identification devices, if an unintended large torque is applied to the rotating part, it may rotate from its fixed position. However, with the personal identification device 2 using the worm 211 and the worm wheel 221, the rotating part 22 can be kept fixed even if an external force acts on the rotating part 22.

[0042] In addition, in the related personal identification device, the fixing screws are exposed, so when the device is installed in a senior citizen facility, the facility users can grab and turn the screws like a handrail, changing the detection range. In other words, it is easily accessible to people other than the users, and the orientation of the camera or sensor can change, which can lead to a loss of the correct viewing angle and thus making it impossible to recognize people. In this regard, the personal identification device 2 using the worm 211 and worm wheel 221 will not rotate even if an unintended torque is generated from the outside, and there is no obvious access like a screw, so the detection range of the camera or sensor is less affected.

[0043] Although the present disclosure has been described above with reference to the embodiments, the present disclosure is not limited to the above-mentioned embodiments. Various modifications that can be understood by a person skilled in the art can be made to the configuration and details of the present disclosure within the scope of the present disclosure. Furthermore, each embodiment can be appropriately combined with other embodiments.

[0044] For example, by changing the tip of the worm to a gear and incorporating a micromotor at the end of that, it will be possible to change the angle to any angle remotely. If the angle of the rotating part can be automatically changed to any angle, it will be possible to realize a mechanism that automatically changes the angle to an easier-to-identify angle when performing facial recognition on the user's face using software.

[0045] Each drawing is merely an example for describing one or more embodiments. Each drawing may relate not only to one particular embodiment, but to one or more other embodiments. As can be understood by those skilled in the art, various features or steps described with reference to any one drawing may be combined with features or steps shown in one or more other drawings to create an embodiment not explicitly shown or described, for example. Not all features or steps shown in any one drawing are necessary to describe an exemplary embodiment, and some features or steps may be omitted. The order of steps described in any drawing may be changed as appropriate.

[0046] Some or all of the above embodiments may be described as, but are not limited to, the following supplementary notes. In addition, some or all of the elements described in any supplementary note may be applied to various hardware, software, recording means for recording software, systems, and methods. (Appendix 1) A personal identification device that identifies an individual from information acquired by a sensor, a base provided with a worm; a rotating section including a worm wheel in which the sensor is provided and which meshes with the worm; A knob is provided at an end of the worm for externally rotating the worm, In response to a human operation of the knob, the worm rotates to rotate the worm wheel, thereby changing the orientation of the sensor. Personal identification device. (Appendix 2) The rotating part includes: The sensor includes a human presence sensor that measures the entry and exit of people into the private room, and a face recognition camera that acquires information on people's faces, When the worm rotates in response to the operation of the knob, and the worm wheel rotates, the orientation of the human presence sensor and the orientation of the face recognition camera are changed simultaneously. 2. A personal identification device as described in claim 1. (Appendix 3) At least one end of the worm is disposed in a recess provided in a side surface of the base body of the base. 10. A personal identification device according to claim 1 or 2. (Appendix 4) Further comprising a cover that can be attached to the recess when the knob is not attached to the end of the worm. 4. A personal identification device as described in claim 3. (Appendix 5) The worm shaft is hexagonal in shape, A hexagonal hole into which a hexagonal shaft portion of the worm can be inserted is provided on the inside of the lid, The shaft portion of the worm is inserted into the hexagonal hole of the cover, whereby the worm is fixed and the worm wheel meshing with the worm is fixed. 5. A personal identification device as described in claim 4. (Appendix 6) the lid is shaped to fit the recess; The recess has a shape that does not rotate together with the lid even when a force is applied in the rotation direction of the worm. 5. A personal identification device as described in claim 4. (Appendix 7) The recess is formed in a rounded rectangular shape on a side surface of the base body of the base, The lid has a rounded rectangular shape that matches the rounded rectangular recess. 7. A personal identification device according to claim 6. (Appendix 8) The lid is made of rubber. 5. A personal identification device as described in claim 4. (Appendix 9) A storage unit that stores human characteristics in advance; and a calculation unit that identifies a person by comparing the user's features acquired by the face recognition camera with the features stored in the storage unit. 3. A personal identification device as described in claim 2. (Appendix 10) A personal identification device that identifies an individual from information acquired by a sensor, a base provided with a worm; a rotating unit provided with the sensor and having a worm wheel that meshes with the worm, The worm is It has a gear at one end and is connected to a micromotor, allowing it to be rotated by remote control. The worm rotates to rotate the worm wheel, thereby changing the orientation of the sensor. Personal identification device. [Explanation of symbols]

[0047] 1 Personal Identification Device 2 Personal Identification Device 11 Base 12 Rotating section 111 Warm 112 Knob 121 Worm Wheel 122 Sensors 21 Base 21a Recess 211 Warm 211a Shaft 211b Teeth 211c end 211d Middle part 212 Lid 213 Knob 22 Rotating section 221 Worm Wheel 221a external teeth 222a Face recognition camera 222b Human Sensor

Claims

1. A personal identification device that identifies an individual from information acquired by a sensor, a base provided with a worm; a rotating section including a worm wheel in which the sensor is provided and which meshes with the worm; A knob is provided at an end of the worm for externally rotating the worm, In response to a human operation of the knob, the worm rotates to rotate the worm wheel, thereby changing the orientation of the sensor. Personal identification device.

2. The rotating part includes: The sensor includes a human presence sensor that measures the entry and exit of people into the private room, and a face recognition camera that acquires information on people's faces, When the worm rotates in response to the operation of the knob, and the worm wheel rotates, the orientation of the human presence sensor and the orientation of the face recognition camera are changed simultaneously. The personal identification device according to claim 1 .

3. At least one end of the worm is disposed in a recess provided in a side surface of the base body of the base.

3. The personal identification device according to claim 1 or 2.

4. Further comprising a cover that can be attached to the recess when the knob is not attached to the end of the worm. The personal identification device according to claim 3.

5. The worm shaft is hexagonal in shape, A hexagonal hole into which a hexagonal shaft portion of the worm can be inserted is provided on the inside of the lid, The shaft portion of the worm is inserted into the hexagonal hole of the cover, whereby the worm is fixed and the worm wheel meshing with the worm is fixed.

5. The personal identification device according to claim 4.

6. the lid is shaped to fit the recess; The recess has a shape that does not rotate together with the lid even when a force is applied in the rotation direction of the worm.

5. The personal identification device according to claim 4.

7. The recess is formed in a rounded rectangular shape on a side surface of the base body of the base, The lid has a rounded rectangular shape that matches the rounded rectangular recess. The personal identification device according to claim 6.

8. The lid is made of rubber.

5. The personal identification device according to claim 4.

9. A storage unit that stores human characteristics in advance; and a calculation unit that identifies a person by comparing the user's features acquired by the face recognition camera with the features stored in the storage unit. The personal identification device according to claim 2 .

10. A personal identification device that identifies an individual from information acquired by a sensor, a base provided with a worm; a rotating unit provided with the sensor and having a worm wheel that meshes with the worm, The worm is It has a gear at one end and is connected to a micromotor, allowing it to be rotated by remote control. The worm rotates to rotate the worm wheel, thereby changing the orientation of the sensor. Personal identification device.

Images