JP2021057777A - Imaging unit, device, intercom system, and housing - Google Patents

Abstract

To improve the shareability.SOLUTION: An imaging unit 2 includes an imaging part 20, a first attachment part 31, and a second attachment part 32. The first attachment part 31 attaches the imaging unit 20 to a first device housing 5A. The second attachment part 32 attaches the imaging unit 20 to a second housing of a second device different from the first device. The imaging unit 2 is selectively attached to either the first housing 5A and the second housing.SELECTED DRAWING: Figure 2

Description

The present disclosure generally relates to imaging units, devices, intercom systems, and housings. More specifically, the present disclosure describes an imaging unit including an imaging unit and fixed to the housing of the device, a device including the imaging unit, an intercom system including the device which is an intercom entrance device, and a housing of the device. Regarding.

Patent Document 1 describes an intercom device. This intercom device includes a case having a case body in which a camera, a substrate, and the like are housed. The camera has a circuit board on which a lens, a lens holder, an image sensor, and the like are mounted and the lens holder is fixed with screws. The camera is placed by exposing the camera lens to the camera window provided in the camera mounting part of the case body. The camera is fixed by screws to screw receiving members provided at three locations around the camera window on the inner surface of the case body. When the case is installed on the wall surface, the camera facing forward captures the visitor who calls and operates.

JP-A-2018-50250

The camera (imaging unit) described in Patent Document 1 may not be attached to another housing having a structure different from that of the case (housing). Therefore, it is necessary to separately prepare an imaging unit that matches the structure of other housings. Alternatively, it is necessary to separately design the other housing to fit the imaging unit.

The present disclosure has been made in view of the above reasons, and an object of the present invention is to provide an imaging unit, an apparatus, an intercom system, and a housing capable of improving commonality.

The imaging unit of one aspect of the present disclosure includes an imaging unit, a first mounting portion, and a second mounting portion. The first mounting portion attaches the imaging unit to the first housing of the first device. The second mounting portion mounts the imaging unit in a second housing of a second device different from the first device. The imaging unit is selectively fixed to either the first housing or the second housing.

The device of one aspect of the present disclosure includes the above-mentioned imaging unit and the first housing or the second housing.

The intercom system of one aspect of the present disclosure includes the above-mentioned device and an information terminal capable of communicating with the above-mentioned device. The device is an intercom entrance device.

The housing of one aspect of the present disclosure is the housing of the device. The housing includes a first fixing portion and a second fixing portion. The first fixing unit fixes the first imaging unit having the first imaging unit. The second fixing unit has a second imaging unit and fixes a second imaging unit having a structure different from that of the first imaging unit. The housing selectively fixes either the first imaging unit or the second imaging unit.

According to the present disclosure, there is an advantage that the commonality can be improved.

FIG. 1 is an external perspective view of a first device including an imaging unit according to an embodiment. FIG. 2 is an exploded perspective view of the first device of the same. FIG. 3A is a perspective view seen from the front of the holding member of the imaging unit of the same. FIG. 3B is a perspective view seen from the rear of the holding member of the same. FIG. 4 is a perspective view of a main part of the housing of the first device as seen from the rear of the cover. FIG. 5A is a perspective view of a main part of the image pickup unit and the cover of the same as above, as viewed from the rear in a state where the sensor substrate is removed. FIG. 5B is a perspective view of a main part of the image pickup unit and the cover of the same as seen from the rear. FIG. 6 is a perspective view of a main part of the same imaging unit and the same housing as viewed from the front with the lens portion and the cover removed. FIG. 7 is a right side view showing a cross section of only the imaging unit and its peripheral portion in the first apparatus of the same. FIG. 8 is a top view showing a cross section of only the image pickup unit and its peripheral portion in the first apparatus of the same. FIG. 9 is an external perspective view of the second device provided with the above-mentioned imaging unit. FIG. 10 is an exploded perspective view of the second device of the same as above. FIG. 11 is a perspective view of a main part of the second block of the cover in the housing of the second device as seen from the rear. FIG. 12A is a perspective view of a main part of the image pickup unit and the cover of the same as above, as viewed from the rear in a state where the sensor substrate is removed. FIG. 12B is a perspective view of a main part of the image pickup unit and the cover of the same as seen from the rear. FIG. 13 is a perspective view of a main part of the same imaging unit and the same housing as viewed from the front with the lens portion and the cover removed. FIG. 14 is a right side view showing a cross section of only the imaging unit and its peripheral portion in the second apparatus of the same. FIG. 15 is a top view showing a cross section of only the image pickup unit and its peripheral portion in the second apparatus of the same. FIG. 16 is a schematic configuration diagram of an intercom system according to an embodiment. FIG. 17A is a schematic view of a housing of the device according to the embodiment and a holding member of the first imaging unit. FIG. 17B is a schematic view of the same housing and the holding member of the second imaging unit.

(1) Outline Each figure described in the following embodiments is a schematic view, and the ratio of the size and the thickness of each component in each figure does not necessarily reflect the actual dimensional ratio. Not necessarily.

As shown in FIGS. 2 and 10, the image pickup unit 2 according to the present embodiment includes an image pickup section 20, a first mounting section 31, and a second mounting section 32.

The first mounting portion 31 is a portion for mounting the imaging unit 20 to the first housing 5A (see FIG. 2) of the first device U1 (see FIG. 1). The second mounting portion 32 is a portion for mounting the imaging unit 20 to the second housing 5B (see FIG. 10) of the second device U2 (see FIG. 9), which is different from the first device U1. The image pickup unit 2 is selectively fixed to either the first housing 5A or the second housing 5B.

Here, as an example, the first mounting portion 31 and the second mounting portion 32 are each composed of a through hole 310 and a through hole 311 (see FIGS. 3A and 3B).

In the present embodiment, each of the first device U1 and the second device U2 assumes, as an example, an intercom entrance device 1 (lobby intercom) installed at the entrance of a facility. The “facility” in the present disclosure assumes a collective facility 100 (see FIG. 16). The collective facility 100 is assumed to be a condominium or the like, and the entrance of the facility is assumed to be a lobby (collective entrance). However, the "facility" of the present disclosure may be a detached house, is not limited to a house, and may be a non-residential facility. Further, the intercom entrance device 1 is not limited to the lobby intercom at the collective entrance, and may be a living room slave unit 17 (see FIG. 16) or a doorbell.

Hereinafter, the intercom entrance device 1 may be simply referred to as an entrance device 1. Further, the first device U1 which is the entrance device 1 may be referred to as the first entrance device 1A. Further, the second device U2, which is the entrance device 1, may be referred to as the second entrance device 1B. The first entrance device 1A and the second entrance device 1B are different from each other in terms of a specific structure. Here, the specific structure is a structure relating to a difference in the angle of the optical axis C1 of the imaging unit 20 with respect to the front direction of each housing.

Further, the device U0 (first device U1 or second device U2) according to the present embodiment includes an imaging unit 2 and a first housing 5A or a second housing 5B. Further, as shown in FIG. 16, the intercom system 10 according to the present embodiment includes a device U0 and an information terminal D1 capable of communicating with the device U0. The device U0 is the entrance device 1. The information terminal D1 is, for example, an intercom device installed separately from the entrance device 1. As shown in FIG. 16, the information terminal D1 assumes a living room master unit 12 installed in each dwelling unit (proprietary section 103) of the collective facility 100. However, the information terminal D1 is not limited to the living room master unit 12, and may be the management room master unit 11 installed in the management room 101.

According to this configuration, the image pickup unit 20 is attached to the first housing 5A by the first mounting portion 31, and is attached to the second housing 5B by the second mounting portion 32. Therefore, the commonality can be improved.

(2) Details Hereinafter, the overall configuration of the first entrance device 1A including the image pickup unit 2 according to the present embodiment and the second entrance device 1B including the same image pickup unit 2 as the first entrance device 1A will be described in FIGS. This will be described in detail with reference to FIG. Further, the intercom system 10 including the entrance device 1 (first entrance device 1A or second entrance device 1B) will be described in detail with reference to FIG.

(2.1) Facility The facility to which the intercom system 10 is applied is, for example, the collective facility 100. The collective facility 100 is an aggregate of a plurality of facilities, and means a structure in which a plurality of facilities are included in one building.

In the present embodiment, it is assumed that the collective facility 100 is an apartment house (a condominium or the like) including a plurality of dwelling units. However, the "facility" in this disclosure includes residential facilities used for residential purposes and non-residential facilities such as stores (tenants), offices, welfare facilities, educational facilities, hospitals and factories. Further, the "facility" is not limited to the collective facility as described above, and may be a detached house. Non-residential facilities include restaurants, amusement parks, hotels, inns, kindergartens, nurseries and public halls. Further, the collective facility 100 may include a facility in which residential facilities and non-residential facilities coexist, for example, a store on the lower floor and a dwelling unit on the upper floor.

In an apartment house, the lobby (collective entrance), parking lot, kids room, garbage collection area, etc. will be the common area 102 (see Fig. 16), and each of the multiple dwelling units will be the exclusive area 103 (see Fig. 16). .. Further, one collective facility 100 may include a plurality of buildings.

In the present embodiment, the facility to which the intercom system 10 is applied (one collective facility 100 or one or more buildings) includes at least one common unit 102 and a plurality of exclusive units 103. To do. Further, as shown in FIG. 16, the facility to which the intercom system 10 is applied may include at least one management room 101. The management room 101 referred to here is equipped with equipment for managing the collective facility 100 (or one or more buildings) (for example, the management room master unit 11 or the like), and the manager is in the absence of the resident. It is a place for managing work such as accepting visitors. The management room 101 includes a management office, a manager's room, and the like.

(2.2) Intercom System First, the configuration of the intercom system 10 will be described with reference to FIG. FIG. 16 illustrates only the intercom system 10 constructed in one of the plurality of buildings included in the collective facility 100. Further, similar devices (living room master unit 12, etc.) are introduced for a plurality of exclusive units 103 each consisting of a dwelling unit, but FIG. 16 shows a device to be introduced only for one exclusive unit 103 (dwelling unit). For the other exclusive parts 103, the illustration of the device to be introduced is omitted.

As shown in FIG. 16, the intercom system 10 includes a management room master unit 11, a living room master unit 12, an entrance device 1 (lobby intercom), a control device 14, and a living room slave unit 17. The entrance device 1 is a first entrance device 1A (see FIG. 1) or a second entrance device 1B (see FIG. 9).

In the following description of the entrance device 1 (first entrance device 1A and second entrance device 1B), the direction along the X axis in FIGS. 2 and 10 is defined as the left-right direction, and the positive direction of the X axis is defined as the right side. To do. Further, the direction along the Y-axis is defined as the front-back direction, and the positive direction of the Y-axis is defined as the front side. Further, the direction along the Z axis is defined as the vertical direction, and the positive direction of the Z axis is defined as the upper side. However, these directions are examples, and are not intended to limit the directions when the entrance device 1 is used. Further, the arrows indicating the respective directions in FIGS. 2 and 10 are shown only for the sake of explanation, and are not accompanied by an entity.

The management room master unit 11 is installed in the indoor space of the management room 101. The intercom system 10 may be further provided with a management room slave unit capable of communicating (including talking) with the management room master unit 11 and a communication adapter, etc., as being installed in the management room 101. The management room slave unit is, for example, an entrance slave unit installed outside the entrance of the management room 101, and is electrically connected to the management room master unit 11.

The entrance device 1 (lobby intercom) and the control device 14 are installed at a collective entrance (lobby), which is one of the common areas 102.

The living room master unit 12 and the living room slave unit 17 are installed in each exclusive unit 103. That is, in the collective facility 100 having a plurality of exclusive units 103, the intercom system 10 includes a plurality of living room master units 12 and a plurality of living room slave units 17. The intercom system 10 may be further provided with one or more disaster prevention devices such as a fire detector or a gas detector as being installed in each exclusive unit 103. The disaster prevention device is configured to be able to communicate with the living room master unit 12, and when it detects the occurrence of an abnormality such as a fire, it notifies the occurrence of the abnormality by transmitting a notification signal to the living room master unit 12.

The living room master unit 12 is installed in the indoor space of each exclusive unit 103 (dwelling unit). The living room slave unit 17 is electrically connected to the living room master unit 12, and is, for example, an entrance slave unit installed outside the entrance of each exclusive unit 103. That is, the living room master unit 12 and the living room slave unit 17 are configured to be able to communicate (including talking) with each other. The living room slave unit 17 has an imaging unit (camera), and an image of a visitor taken by the imaging unit of the living room slave unit 17 can be displayed on the living room master unit 12.

The door 105 (or the electric lock provided on the door 105) of the lobby (common area 102) is electrically connected to the entrance device 1. In the intercom system 10, the entrance device 1 can control the opening / closing or locking / unlocking of the door 105. The entrance device 1 is installed on the outside of the door 105 (the side communicating with the outside of the collective facility 100) in the common portion 102 such as the lobby of the collective facility 100, for example.

The management room master unit 11, the plurality of living room master units 12, and the entrance device 1 are all electrically connected to the control device 14. Therefore, the management room master unit 11, each living room master unit 12, and the entrance device 1 can communicate with each other (including a telephone call) via the control device 14. That is, the management room master unit 11 and each living room master unit 12 can communicate with each other. Further, the management room master unit 11 and the entrance device 1 can communicate with each other, and each living room master unit 12 and the entrance device 1 can communicate with each other.

The entrance device 1 transmits a call signal for calling the management room master unit 11 or the living room master unit 12 to the management room master unit 11 or the living room master unit 12. Further, the entrance device 1 has an image pickup unit 2 (described later), and an image of a visitor taken by the image pickup unit 20 of the image pickup unit 2 is transmitted to the management room master unit 11 or the living room master unit 12. To. As a result, the image of the visitor taken by the imaging unit 20 can be displayed on the management room master unit 11 or the living room master unit 12.

The intercom system 10 not only constitutes a local network within the collective facility 100, but is also connected to an external network NT1 of the collective facility 100 such as the Internet via the Internet equipment 106, a gateway 107, a communication adapter, and the like. .. Specifically, the control device 14 is electrically connected to the communication adapter and is connected to the Internet equipment 106 via the communication adapter. The Internet equipment 106 is connected to the network NT1 via the gateway 107. The Internet equipment 106 can also be connected to each of the plurality of exclusive units 103. The Internet equipment 106 and the gateway 107 are installed in, for example, the MDF (Main Distribution Frame) room 104 in the collective facility 100.

In this way, in the intercom system 10, the control device 14 can be connected to the network NT1 outside the collective facility 100. Therefore, the intercom system 10 can communicate with an external server 110 or the like via the network NT1 to acquire information from the external server 110 or output information to the external server 110, for example. .. The server 110 is composed of, for example, one or a plurality of server devices operated by a management company that manages one or a plurality of collective facilities 100.

(2.3) First Entrance Device Next, the configuration of the first entrance device 1A will be described in more detail with reference to FIGS. 1 to 8.

As shown in FIG. 1, the first entrance device 1A is composed of an internal unit B1 and a panel B2 surrounding the internal unit B1. The internal unit B1 is embedded in the wall surface of the wall of the collective entrance (lobby) in a state of being attached to the panel B2.

As shown in FIG. 1, the panel B2 has a front plate B21 and a back plate B22. The front plate B21 is configured as, for example, a decorative metal (for example, stainless steel) plate. The front plate B21 has a substantially rectangular frame shape that surrounds the peripheral edge of the internal unit B1 and exposes the front surface of the internal unit B1. The surface of the front plate B21 is substantially flush with the front surface of the internal unit B1. The front plate B21 has a circular hole B23 (see FIG. 1) penetrating in the front-rear direction in a region below the inner unit B1. The hole B23 is a hole that exposes the keyhole of the reverse master key for unlocking the door 105, and if the keyhole cannot be attached, a disk-shaped blank cover may be attached.

The back plate B22 is configured as a fixing portion for fixing to an embedded box embedded in the wall surface of the wall of the collective entrance. The back plate B22 is configured to accommodate the terminal unit 9 while exposing a part of the terminal unit 9 (described later) (see FIGS. 7 and 8).

The panel B2 is assembled so that the inner unit B1 is sandwiched between the front plate B21 and the back plate B22 in the front-rear direction. The panel B2 is fixed to the embedded box embedded in the wall surface of the collective entrance (lobby) by screwing with the internal unit B1 assembled.

As shown in FIG. 2, the internal unit B1 includes an image pickup unit 2, an operation unit 4, a housing 5 (first housing 5A), a communication unit 6, a display unit 7, a sensor 8, and a control module. , A communication module, and a terminal unit 9. The first housing 5A accommodates or holds the image pickup unit 2, the operation unit 4, the communication unit 6, the display unit 7, the sensor 8, the control module, the communication module, and the terminal unit 9.

As shown in FIG. 2, the image pickup unit 2 includes an image pickup section 20, a sensor substrate 25, a holding member 3, a first mount section 31, a second mount section 32, and a third mount section 33. There is. The image pickup unit 2 is arranged near the upper end portion and at the central portion in the left-right direction when viewed from the front of the internal unit B1. A display unit 7 is arranged below the image pickup unit 2.

As shown in FIGS. 7 and 8, the image pickup unit 20 is a camera having an image pickup element 21 and a lens unit 22 for taking an image of a subject. Here, the subject is an operator who operates the operation unit 4, such as a visitor. The imaging area (field of view) of the imaging unit 20 is set in front of the first entrance device 1A so that the operator can at least image the operator's face when operating the first entrance device 1A. In the present embodiment, the imaging unit 20 is a camera that captures a moving image. Further, in the present embodiment, the imaging unit 20 is a camera that captures a color image.

The image sensor 21 is, for example, a two-dimensional image sensor such as a CCD (Charge Coupled Devices) image sensor or a CMOS (Complementary Metal-Oxide Semiconductor) image sensor. As shown in FIG. 6, the image pickup device 21 is mounted on the first surface 251 (front surface) of the sensor substrate 25.

The lens portion 22 is formed in a substantially cylindrical shape as a whole, and has a lens surface 220 (see FIGS. 7 and 8) at the front end. The lens unit 22 is arranged so that its rear end surface 222 (see FIG. 5A) faces the image pickup device 21. The lens unit 22 forms an image of the light collected by the lens surface 220 from the subject on the image pickup surface (light receiving surface) of the image pickup element 21. The image sensor 21 converts the light from the subject into an electric signal. The image sensor 21 outputs the output signal as a video signal to the video processing unit of the control module.

As shown in FIGS. 7 and 8, the lens portion 22 has a groove 221 on its side surface into which the O-ring 23 is fitted.

The sensor board 25 is a printed circuit board on which conductor wiring is provided. The sensor substrate 25 has a rectangular plate shape that is long in the left-right direction. The image sensor 21 is mounted on the front surface (first surface 251) of the sensor substrate 25. A terminal portion 27 to which an FPC (flexible printed circuit board) 26 is connected is mounted on the rear surface (second surface 252: see FIG. 5B) of the sensor substrate 25. The image sensor 21 is electrically connected to the control module via the sensor substrate 25 and the FPC 26.

The sensor substrate 25 has a pair of holes 253 (see FIG. 5B) penetrating in the thickness direction thereof in the left half region when viewed from the front. The pair of holes 253 are arranged in the upper left corner and the lower right corner in the left half region of the sensor substrate 25, respectively. The sensor substrate 25 is screwed and fixed to the holding member 3 by two first screws F1 (see FIGS. 5A and 5B) that are inserted into the pair of holes 253 from the rear side.

Further, as shown in FIGS. 5B and 6, the sensor substrate 25 has a recess 254 recessed upward from the lower edge thereof in the vicinity of the center in the left-right direction. The recess 254 exposes the right side portion 3B of the holding member 3 (described later).

The holding member 3 is, for example, a molded product formed of a synthetic resin material in a substantially rectangular plate shape that is long in the left-right direction. The holding member 3 is configured to hold at least a part of the imaging unit 20 (here, the lens unit 22). In other words, the image pickup unit 2 includes a holding member 3 that holds at least a part of the image pickup unit 20. In the present embodiment, the first mounting portion 31, the second mounting portion 32, and the third mounting portion 33 are provided on the holding member 3. The holding member 3 will be described in detail in the next section "(2.4) Holding member".

The operation unit 4 is configured to receive human operations. The operation unit 4 is an input interface having a plurality of operation buttons 40. The plurality of operation buttons 40 have, for example, ten keys 0 to 9, an asterisk (*) button, an erase button, a call button, and four function keys (see FIG. 1). When a visitor wants to call a resident with the first entrance device 1A, he / she presses the number buttons of the numeric keypad corresponding to the resident's room number (house number) in order and inputs the room number. Finally, when the operator presses the call button, the input of the room number is confirmed, and the call is executed to the living room master unit 12 of the dwelling unit having that room number.

As shown in FIG. 2, the telephone unit 6 includes a pair of left and right microphones 61 and a speaker 62. The pair of left and right microphones 61 are arranged on the left and right sides of the image pickup unit 2 when viewed from the front of the internal unit B1 and are electrically connected to the control module. The speaker 62 is arranged in the lower right corner when viewed from the front of the internal unit B1 and is electrically connected to the control module. The call unit 6 is configured to realize a call with the living room master unit 12 or the management room master unit 11. In the following, the communication (including the call) to the living room master unit 12 will be described, and the description of the communication to the management room master unit 11 may be omitted as appropriate.

The communication module is a communication interface for communicating with the living room master unit 12 and the management room master unit 11. The electronic components that make up the communication module are mounted on a mounting board that is arranged on the back side of the display unit 7. The communication module is connected to the control device 14. The communication module is configured to be capable of bidirectional communication with the living room master unit 12 (or the management room master unit 11) via the control device 14. The communication module is configured to transmit a communication signal to the living room master unit 12 (or the management room master unit 11). The communication signal includes an audio signal, a video signal, a control signal, and the like. Further, the communication module receives a communication signal transmitted from the living room master unit 12 (or the management room master unit 11) via the control device 14, and acquires a voice signal or the like by demodulating the received communication signal. The audio signal is output to the speaker 62 of the telephone unit 6 via the control module.

The display unit 7 has a display screen 70 including, for example, a liquid crystal display. The display unit 7 is arranged in an area upper half of the center of the internal unit B1 in the vertical direction when viewed from the front of the internal unit B1. The display unit 7 is arranged between the operation unit 4 and the image pickup unit 2 in the vertical direction when viewed from the front of the internal unit B1. The display unit 7 has a touch panel type display, and may also have a function of an operation unit that receives an operation input. The display unit 7 outputs a guide image under the control of the control module. Further, the display unit 7 displays the image of the visitor himself / herself captured by the image pickup unit 20. During the call of the room master unit 12 or during a call with the room master unit 12, the image of the visitor is not output to the display screen 70 but is output to the side of the room master unit 12.

The sensor 8 is, for example, a pyroelectric type infrared sensor, and detects a person or the like by detecting the amount of change in infrared rays generated when the person or the like moves. The sensor 8 is arranged in the lower left corner when viewed from the front of the internal unit B1 and is electrically connected to the control module.

As shown in FIGS. 7 and 8, the terminal unit 9 is held on the back side of the first housing 5A. The first housing 5A is fixed to the embedded box by screwing in a state where the terminal unit 9 is housed in the embedded box embedded in the wall surface of the collective entrance or the like. The terminal unit 9 is electrically connected to an electric wire (including a power line and a communication line) in the embedded box. The control module, communication module, and the like are electrically connected to the terminal unit 9.

The control module mainly comprises a computer system having one or more processors and one or more memories. In the control module, each function of the control module is realized by executing a program recorded in the memory by one or more processors. The program may be pre-recorded in a memory, provided through a telecommunication line such as the Internet, or may be recorded and provided on a non-temporary recording medium such as a memory card.

The control module is configured to control the image pickup unit 20, the communication module, the display unit 7, and the like of the image pickup unit 2. The electronic components that make up the control module are mounted on a mounting board that is arranged on the back side of the display unit 7.

The control module controls the image pickup unit 20 to cause the image pickup unit 20 to take an image. For example, when the sensor 8 detects a person such as a visitor, the control module activates the imaging unit 20 to start imaging the person. By controlling the display unit 7, the control module superimposes a real-time image being imaged by the imaging unit 20 on the guidance image that guides the input of the room number, and outputs the guidance image to the display screen 70.

Further, the control module transmits the image captured by the imaging unit 20 to the living room master unit 12 before, during the calling, and during communication with the living room master unit 12 before calling the living room master unit 12 (or the management room master unit 11). Send out.

By controlling the communication module, the control module causes the communication module to transmit a communication signal to the room master unit 12, and causes the communication module to receive the communication signal from the room master unit 12. The communication signal to the living room master unit 12 includes an audio signal, a video signal, a control signal, and the like. Further, the communication signal from the living room master unit 12 includes a voice signal, a control signal, and the like. The partner for transmitting and receiving the communication signal also includes the management room master unit 11.

The control module has a video processing unit that processes the video included in the video signal from the imaging unit 20. The video processing unit is realized by a device such as a DSP (Digital Signal Processor) or an FPGA (Field-Programmable Gate Array), for example. The video processing unit receives the video signal output from the imaging unit 20, processes the video included in the video signal by signal processing, and transmits the video signal from the communication module to the living room master unit 12 (or the management room master unit 11).

The control module is configured to execute various functions in response to the operation input received by the operation unit 4. For example, when the number button is operated while the guidance image prompting the input of the room number is displayed on the display screen 70, the control module outputs the input number on the display screen 70. .. Then, when the call button is operated after inputting the room number, the control module transmits a call signal to start calling the room master unit 12.

As shown in FIG. 2, the first housing 5A has a cover 50, a case 51, a decorative panel 52, and a double-sided tape 53.

The cover 50 is made of, for example, a synthetic resin. The cover 50 is arranged on the front side (front side) of the case 51. The back surface of the cover 50 is open, and the cover 50 has a rectangular box shape that is flat in the front-rear direction. The cover 50 is fixed to the case 51 by screwing so as to cover the front surface of the opened case 51.

The cover 50 has a plurality of through holes, each of which penetrates in the front-rear direction. Specifically, the cover 50 has a first window 501 that exposes the display unit 7 as a through hole. The first window 501 has a rectangular opening that is long in the left-right direction when viewed from the front.

Further, the cover 50 has a plurality of second windows 502 as through holes for exposing the plurality of operation buttons 40, respectively. The plurality of second windows 502 have an opening shape corresponding to the shape of each operation button 40 when viewed from the front.

Further, the cover 50 has a third window 503 that exposes the sensor 8 and a fourth window 504 that derives the sound from the speaker 62 as through holes. The third window 503 has a rectangular opening when viewed from the front. The fourth window 504 has a substantially semicircular opening when viewed from the front.

Further, the cover 50 has a pair of holes 505 for introducing sound toward the pair of left and right microphones 61, respectively, as through holes. Each hole 505 is a long hole that is long in the vertical direction when viewed from the front.

Further, the cover 50 has a lens hole 506 that exposes the lens portion 22 as a through hole. The lens hole 506 has a circular opening when viewed from the front. The peripheral edge of the lens hole 506 in the cover 50 projects substantially in a dome shape. Specifically, as shown in FIGS. 2, 7, and 8, the cover 50 has a cylindrical portion Y1 that projects cylindrically from the front surface to the front. The lens hole 506 is provided so as to penetrate the cylindrical portion Y1 in the front-rear direction. The cylindrical portion Y1 has an inclined surface Y11 in which the outer peripheral surface of the front end portion thereof is inclined toward the central axis of the cylindrical portion Y1 toward the front. The inner peripheral surface of the front end portion of the cylindrical portion Y1 is narrowed down so that its inner diameter is slightly smaller. The internal space of the cylindrical portion Y1 constitutes an accommodating portion 500 (see FIG. 4) for accommodating a part (substantially the front half) of the lens portion 22.

In the present embodiment, the image pickup unit 20 is attached to the front side cover 50 of the first housing 5A from the back side thereof. In particular, the lens portion 22 is accommodated in the accommodating portion 500 of the cover 50 from the back side so that at least a part (generally all of them here) of the lens surface 220 is exposed on the front side of the cover 50.

As shown in FIG. 4, the cover 50 has a pair of bosses 507 and 508 having screw holes G1 and G2, respectively, around the accommodating portion 500 on the back side thereof. The bosses 507 and 508 are arranged on the left and right sides so as to sandwich the accommodating portion 500 when viewed from the back surface of the cover 50 (see FIG. 4). The left boss 507 (right side in FIG. 4) is located slightly above the center of the accommodating portion 500 in the vertical direction, and the right boss 508 (left side in FIG. 4) is located in the vertical direction at the center of the accommodating portion 500. It is located slightly below. A plurality of reinforcing ribs are formed around each boss. The screw holes G1 and G2 of the pair of bosses 507 and 508 are holes into which the two second screws F2 (see FIG. 5A) are screwed.

The amount of protrusion of the boss 507 from the back surface of the cover 50 is substantially equal to the amount of protrusion of the boss 508. The end face 507A (see FIG. 4) of the boss 507 is flat and substantially parallel to the XX plane. Similarly, the end face 508A (see FIG. 4) of the boss 508 is also flat and substantially parallel to the XZ plane.

The holding member 3 is screwed and fixed to the cover 50 by two second screws F2 while holding the lens portion 22, whereby the lens surface 220 of the lens portion 22 is placed on the front side of the cover 50 through the lens hole 506. It is housed in the housing unit 500 in an exposed state. Since the O-ring 23 in the groove 221 of the lens portion 22 comes into contact with the entire inner peripheral surface of the lens hole 506 in the circumferential direction, the waterproof property is enhanced.

The case 51 is made of, for example, a synthetic resin. The case 51 has a flat, substantially rectangular box shape with an open front surface. The case 51 forms a storage space for accommodating the image pickup unit 2, the operation unit 4, the communication unit 6, the display unit 7, the sensor 8, the control module, the communication module, and the like together with the cover 50. The terminal unit 9 is held on the back side of the case 51.

The decorative panel 52 is a substantially rectangular panel having translucency (for example, a transparent panel). As shown in FIG. 2, the decorative panel 52 is arranged on the front side of the cover 50, and the light from the display unit 7 passes through the decorative panel 52 and is emitted forward. The decorative panel 52 is attached to the front surface of the cover 50 by the double-sided tape 53.

The decorative panel 52 has a plurality of through holes, each of which penetrates in the front-rear direction. Specifically, the decorative panel 52 has a plurality of windows 520 that expose the plurality of operation buttons 40 together with the plurality of second windows 502 of the cover 50 as through holes. Further, the decorative panel 52 has a window 521 that exposes the sensor 8 together with the third window 503 of the cover 50, and a plurality of holes 522 that derive the sound from the speaker 62 together with the fourth window 504 of the cover 50 as through holes. doing. Further, the decorative panel 52 has a pair of holes 505 of the cover 50 and a pair of holes 523 for introducing sound toward the pair of microphones 61 as through holes.

Further, the decorative panel 52 has an insertion hole 524 into which the front end portion (the portion where the inclined surface Y11 is located) of the cylindrical portion Y1 of the cover 50 is inserted, as a through hole. Therefore, the lens surface 220 of the lens unit 22 is exposed to the outside at a position in front of the front surface of the decorative panel 52.

Although detailed description will be omitted, the double-sided tape 53 also has a plurality of through holes corresponding to the plurality of through holes of the cover 50.

(2.4) Holding Member Next, the holding member 3 will be described in more detail with reference to FIGS. 3A and 3B. As described above, the first mounting portion 31, the second mounting portion 32, and the third mounting portion 33 are provided on the holding member 3.

The first mounting portion 31 is a portion for mounting the imaging unit 20 to the housing 5 of the first entrance device 1A (the first housing 5A of the first device U1), and here, the holding member 3 is attached along the thickness direction. It is composed of a through hole 310 that penetrates through the hole 310. The through hole 310 is a round hole when viewed along the through direction.

The second mounting portion 32 is a portion for mounting the imaging unit 20 to the housing 5 of the second entrance device 1B (the second housing 5B of the second device U2), and here, the holding member 3 is attached along the thickness direction. It is composed of a through hole 311 that penetrates through the hole. The through hole 311 is a round hole when viewed along the through direction.

The third mounting portion 33 is a common portion for mounting the imaging unit 20 to either the first housing 5A or the second housing 5B, and here, the holding member 3 is penetrated along the thickness direction. It is composed of holes 312. The third mounting portion 33 is used in both the first entrance device 1A and the second entrance device 1B. The through hole 312 is an elongated hole that is long in the vertical direction when viewed along the through direction.

As shown in FIGS. 3A and 3B, the holding member 3 is formed by integrally forming a base portion 3A, a right side portion 3B, a left flat portion 3C, and a left side inclined portion 3D.

The base portion 3A has a flat rectangular box shape whose thickness direction is along the front-rear direction and whose back surface side is open. The base portion 3A penetrates in the thickness direction thereof and has an fitting hole 300 into which the rear end portion of the lens portion 22 is fitted. The fitting hole 300 is a circular hole.

The base portion 3A has an annular protrusion 313 for reinforcement, which projects forward in an annular shape along the peripheral edge of the fitting hole 300 on the front surface 320 thereof. For example, the lens portion 22 is held by the holding member 3 by inserting the rear end portion of the lens portion 22 into the fitting hole 300 by press fitting.

As shown in FIG. 3A, the base portion 3A has a pair of screw holes 314 into which two first screws F1 are screwed, at the upper left and the lower right of the peripheral edge of the fitting hole 300. The base portion 3A has a reinforcing annular protrusion 314A projecting forward in an annular shape along the peripheral edge of the pair of screw holes 314 on the front surface 320 thereof.

As shown in FIG. 3B, the base portion 3A has a projecting frame 315 projecting rearward in the shape of a square frame on its back surface 321. The projecting frame 315 is arranged so as to surround the fitting hole 300. In a state where the rear end portion of the lens portion 22 is fitted into the fitting hole 300 from the front surface 320 of the base portion 3A, the rear end surface 222 of the lens portion 22 is exposed in the protruding frame 315 on the back surface 321 side of the base portion 3A (FIG. 5A). reference).

The two first screws F1 are screwed in from the side of the back surface 321 of the base 3A. That is, in a state where the sensor substrate 25 is arranged so as to face the back surface 321 of the base portion 3A, two first screws F1 are inserted into a pair of holes 253 of the sensor substrate 25, and a pair of base portions 3A are further inserted. By being screwed into the screw hole 314 of the above, it is fixed to the holding member 3.

In a state where the sensor substrate 25 is fixed to the holding member 3, the image sensor 21 mounted on the sensor substrate 25 is housed in the projecting frame 315. In particular, a plurality of positioning protrusions 223 (see FIG. 5A) for positioning the image pickup device 21 are formed on the rear end surface 222 of the lens portion 22. The plurality of positioning protrusions 223 are arranged along the four sides of a substantially square when viewed from the front of the rear end surface 222 of the lens portion 22. Each positioning protrusion 223 projects rearward. The image sensor 21 on the sensor substrate 25 is arranged and positioned inside the plurality of positioning protrusions 223.

Further, the base portion 3A has a pair of bosses 316 formed integrally with the projecting frame 315 on the back surface 321 thereof. A screw hole 314 penetrates the boss 316.

The right side portion 3B is formed integrally with the base portion 3A so as to recede from the right edge portion of the base portion 3A as a whole. The right side portion 3B projects further rearward than the end surface of the projecting frame 315 of the base portion 3A. The right side portion 3B has a flat portion 330 and an inclined portion 331. The flat portion 330 is a plate-shaped portion whose thickness direction is along the front-rear direction. The inclined portion 331 extends downward from the lower edge of the flat portion 330. However, the inclined portion 331 is bent so as to be forward toward the flat portion 330 toward the lower side.

The through hole 312 (long hole) constituting the third mounting portion 33 is provided in the right side portion 3B. Specifically, the through hole 312 is generally arranged in the flat portion 330, but is formed so as to slightly extend to the inclined portion 331.

The left flat portion 3C is formed integrally with the base portion 3A so as to recede from the left edge portion of the base portion 3A as a whole. A partition wall 317 projecting to the left is provided on the left edge of the base 3A near the center in the vertical direction. The left flat portion 3C is arranged above the partition wall 317. The left inclined portion 3D is arranged below the partition wall 317. In short, the left flat portion 3C and the left inclined portion 3D are arranged in the vertical direction with the partition wall 317 in between when the holding member 3 is viewed from the front. The left flat portion 3C is a plate-shaped portion whose thickness direction is along the front-rear direction. The through hole 310 constituting the first mounting portion 31 is provided in the left flat portion 3C.

The left inclined portion 3D is formed integrally with the base portion 3A. The left side inclined portion 3D is bent so as to move forward toward the lower side with respect to the left side flat portion 3C. That is, the left side inclined portion 3D is a plate-shaped portion whose thickness direction is inclined with respect to the front-rear direction. The through hole 311 constituting the second mounting portion 32 is provided in the left inclined portion 3D. The left inclined portion 3D has a pair of protruding ribs 318 (see FIGS. 3B, 5A, and 5B) that project rearward in a substantially arc shape from the left and right peripheral edges of the through hole 311 on the back surface side thereof.

[Installation procedure]
Here, an attachment procedure for attaching the holding member 3 to the cover 50 of the first housing 5A will be described. The following mounting procedure is merely an example and is not limited.

It is assumed that the lens portion 22 is already attached to the holding member 3. The holding member 3 is placed on the back side of the cover 50 so that the lens portion 22 fits in the accommodating portion 500 while the lens surface 220 is exposed from the lens hole 506 (see FIG. 5A).

Here, the screw hole G2 of the boss 508 and the upper half hole in the through hole 312 (long hole) of the right side portion 3B constituting the third mounting portion 33 face each other. At this time, the front surface of the flat portion 330 of the right side portion 3B and the end surface 508A of the boss 508 come into substantially surface contact. That is, the third mounting portion 33 is mounted on the third target portion T3 (see FIG. 4) included in the first housing 5A. Here, the third target portion T3 corresponds to a boss 508 having a screw hole G2.

The second screw F2 is screwed into the screw hole G2 of the boss 508. Then, the head of the second screw F2 comes into contact with the back surface of the flat portion 330. In this state, the flat portion 330 is substantially parallel to the XZ plane.

Further, the screw hole G1 of the boss 507 and the through hole 310 of the left flat portion 3C constituting the first mounting portion 31 face each other. The end surface 507A of the boss 507 and the front surface of the left flat portion 3C are substantially in surface contact with each other.

The second screw F2 is screwed into the screw hole G1 of the boss 507. Then, the head of the second screw F2 comes into contact with the back surface of the left flat portion 3C. In this state, the left flat portion 3C is substantially parallel to the XZ plane, while the left inclined portion 3D is inclined with respect to the XZ plane. That is, the first mounting portion 31 is mounted on the first target portion T1 (see FIG. 4) included in the first housing 5A. Here, the first target portion T1 corresponds to a boss 507 having a screw hole G1. The through hole 311 of the left inclined portion 3D constituting the second mounting portion 32 is not used.

Finally, the sensor substrate 25 on which the image sensor 21 is mounted is fixed to the holding member 3 with two first screws F1 (see FIG. 5B). In the image pickup unit 2, the right side portion 3B of the holding member 3 is exposed through the recess 254 of the sensor substrate 25, and the left flat portion 3C and the left side inclined portion 3D are also exposed on the left side of the left edge of the sensor substrate 25. It is configured to do. Therefore, as a mounting procedure, it is also possible to first screw the sensor substrate 25 to the holding member 3 and then screw the holding member 3 to the cover 50.

By attaching the holding member 3 to the cover 50 in this way, the image pickup unit 2 as a whole is fixed to the first housing 5A in a state where the optical axis C1 is substantially parallel to the front direction of the first housing 5A. Will be. The "front direction" in the present disclosure is, for example, a direction orthogonal to the surface of the decorative panel 52.

(2.5) Second Entrance Device Next, the configuration of the second entrance device 1B will be described in more detail with reference to FIGS. 9 to 15. However, in the following, components substantially in common with the first entrance device 1A may be designated by the same reference numerals and description thereof may be omitted as appropriate.

As shown in FIG. 9, the second entrance device 1B is composed of an internal unit B1 and a panel B2. The internal unit B1 is fixed to the panel B2 by screwing, for example, to an embedded box embedded in the surface (for example, a slope) of a mounting base erected on the floor surface of the collective entrance.

The internal unit B1 includes an image pickup unit 2, an operation unit 4, a housing 5 (second housing 5B), a communication unit 6, a display unit 7, a sensor 8, a control module, a communication module, and terminals. It has a unit 9. The second housing 5B accommodates or holds the image pickup unit 2, the operation unit 4, the communication unit 6, the display unit 7, the sensor 8, the control module, the communication module, and the terminal unit 9.

The image pickup unit 2 of the second entrance device 1B is common to the image pickup unit 2 of the first entrance device 1A. In other words, the image pickup unit 2 is selectively fixed to either the first housing 5A of the first entrance device 1A or the second housing 5B of the second entrance device 1B.

In the present embodiment, the operation unit 4, the communication unit 6, the communication module, the display unit 7, the sensor 8, the terminal unit 9, and the control module of the second entrance device 1B are all substantially the same as those of the first entrance device 1A. Common. However, at least some of these may differ from those of the first entrance device 1A. For example, the number, position, or type of the plurality of operation buttons 40 of the operation unit 4 may differ between the first entrance device 1A and the second entrance device 1B.

As shown in FIG. 10, the second housing 5B has a cover 50, a case 51, a decorative panel 52, and a double-sided tape 53.

However, the second housing 5B is different from the first housing 5A in the structure of the cover 50. Specifically, the cover 50 of the second housing 5B is substantially the same in shape and size as that of the first housing 5A, but as shown in FIG. 10, the first block 50A and the first block 50A are the same. It differs in that it is divided into two blocks 50B. Hereinafter, the cover 50 of the second housing 5B will be described in detail.

The cover 50 is made of, for example, a synthetic resin. The cover 50 includes a first block 50A and a second block 50B.

The first block 50A is a portion that occupies almost the entire area of the cover 50, and its back surface is open, forming a rectangular box shape that is flat in the front-rear direction. The first block 50A is fixed to the case 51 by screwing so as to cover the front surface of the opened case 51.

The first block 50A has a first window 501, a plurality of second windows 502, a third window 503, a fourth window 504, and a pair of holes 505. However, the lens hole 506 that exposes the lens portion 22 is arranged not in the first block 50A but in the second block 50B.

The first block 50A has a groove 555 into which the second block 50B is fitted. The groove 555 is recessed in a rectangular shape from the upper end of the center in the left-right direction of the first block 50A toward the first window 501. The groove 555 has substantially the same shape and size as the second block 50B when viewed from the front, and the second block 50B can be inserted into the groove 555 with almost no gap. The second block 50B is fixed to the first block 50A by an appropriate fixing means such as fitting, gluing, or screwing.

The second block 50B has a substantially rectangular plate shape as a whole. The second block 50B is a portion having a lens hole 506 that exposes the lens portion 22. Specifically, as shown in FIG. 11, the second block 50B has a base portion 550, a first piece 551, and a second piece 552.

The base portion 550 has a rectangular plate shape, and its thickness direction is along the front-rear direction. The base portion 550 has a protrusion base 556 (see FIG. 10) that slightly protrudes forward from the front surface thereof to form a step with respect to the surroundings. The protrusion 556 has a substantially U-shaped peripheral edge when viewed from the front.

Further, the base portion 550 has a dome portion Y2 curved so as to be convex in a dome shape from the central portion of the protrusion base 556 toward the front. The lens hole 506 is formed in the dome portion Y2. The lens hole 506 is displaced downward from the center of the spherical surface of the dome portion Y2 in the vertical and horizontal directions when viewed from the front of the dome portion Y2. The penetrating direction of the lens hole 506 is inclined downward at a predetermined angle with respect to the front-rear direction (front direction). The predetermined angle is greater than 0 ° and less than 90 °, for example about 30 °. The lens hole 506 has a circular opening when viewed along the penetrating direction thereof.

As shown in FIG. 11, the back surface of the dome portion Y2 is recessed in a dome shape, similarly to the front surface of the dome portion Y2. The internal space of the dome portion Y2 constitutes an accommodating portion 500 for accommodating a part (substantially the front half) of the lens portion 22.

Also in the second entrance device 1B, the image pickup unit 20 is attached to the front side cover 50 of the second housing 5B from the back side thereof. The lens portion 22 is accommodated in the accommodating portion 500 from the back side so that at least a part (generally all of them here) of the lens surface 220 is exposed on the front side of the second block 50B of the cover 50. As shown in FIG. 9, with the decorative panel 52 attached to the cover 50, the protrusion base 556 and the dome portion Y2 are exposed from the notch groove 524A recessed in a substantially U shape in the decorative panel 52.

The first piece 551 extends rearward from the vicinity of the upper edge on the back surface of the base 550. The upper surface of the first piece 551 is substantially flush with the upper end surface of the first block 50A in a state where the second block 50B is attached to the first block 50A.

The second piece 552 extends rearward from the vicinity of the lower edge on the back surface of the base 550. The second piece 552 is a rectangular frame-shaped reinforcing rib 509 formed so as to surround the circumference of the first window 501 in the first block 50A in a state where the second block 50B is attached to the first block 50A (FIG. 12A and 12B). The holding member 3 is arranged between the first piece 551 and the second piece 552.

Here, as shown in FIG. 11, the second block 50B has a pair of bosses 557 and 558 having screw holes G1 and G2, respectively, around the accommodating portion 500 on the back surface of the base portion 550. The bosses 557 and 558 are arranged on the left and right sides so as to sandwich the accommodating portion 500 when viewed from the back surface of the second block 50B (see FIG. 11). The left boss 557 (right side in FIG. 11) is located slightly below the center of the accommodating portion 500 in the vertical direction, and the right boss 558 (left side in FIG. 11) is also located in the vertical direction at the center of the accommodating portion 500. It is located slightly below. Reinforcing ribs are formed around each boss. The screw holes G1 and G2 of the pair of bosses 557 and 558 are holes into which the two second screws F2 (see FIGS. 12A and 12B) are screwed. The holding member 3 is screwed and fixed to the second block 50B by two second screws F2 while holding the lens portion 22. As a result, the lens portion 22 is accommodated in the accommodating portion 500 with the lens surface 220 exposed to the front side of the second block 50B through the lens hole 506. The O-ring 23 in the groove 221 of the lens portion 22 is arranged slightly separated from the inner peripheral surface of the lens hole 506, but may be in contact with the O-ring 23.

The amount of protrusion of the boss 557 from the back surface of the base 550 is slightly smaller than the amount of protrusion of the boss 558. The end face 557A (see FIG. 11) of the boss 557 is flat and substantially parallel to the XX plane. The end surface 558A (see FIG. 11) of the boss 558 is composed of a flat surface 558B and an inclined surface 558C. The flat surface 558B is arranged below the inclined surface 558C and is substantially parallel to the end surface 557A of the boss 557. The inclined surface 558C is continuous from the upper edge of the flat surface 558B and is inclined with respect to the flat surface 558B so as to approach the back surface of the base 550. Further, a protrusion 558D projecting rearward is provided on the upper portion of the inclined surface 558C.

[Installation procedure]
Here, an attachment procedure for attaching the holding member 3 to the second block 50B of the second housing 5B will be described. The following mounting procedure is merely an example and is not limited.

It is assumed that the lens portion 22 is already attached to the holding member 3. While the lens surface 220 is exposed from the lens hole 506, the holding member 3 is slightly tilted so that the lens portion 22 fits in the accommodating portion 500, and is placed on the back side of the second block 50B (see FIG. 12A).

Here, the protrusion 558D is above the through hole 312 in a state where the screw hole G2 of the boss 558 and the lower half hole in the through hole 312 (long hole) of the right side portion 3B constituting the third mounting portion 33 face each other. It is inserted into the half hole. That is, in the through hole 312 (long hole), the position where the second screw F2 is inserted differs between the first housing 5A and the second housing 5B. At this time, the front surface of the inclined portion 331 of the right side portion 3B and the flat surface 558B are substantially in contact with each other. That is, the third mounting portion 33 is mounted on the fourth target portion T4 (see FIG. 11) included in the second housing 5B. Here, the fourth target portion T4 corresponds to a boss 558 having a screw hole G2.

The second screw F2 is screwed into the screw hole G2 of the boss 558. Then, the head of the second screw F2 straddles the tip of the protrusion 558D protruding from the through hole 312 and the back surface of the inclined portion 331 and comes into contact with them. In this state, the inclined portion 331 is substantially parallel to the XZ plane, while the flat portion 330 is inclined with respect to the XZ plane.

Further, in a state where the screw hole G1 of the boss 557 and the through hole 311 of the left inclined portion 3D constituting the second mounting portion 32 face each other, the end surface 557A of the boss 557 and the front surface of the left inclined portion 3D are substantially in contact with each other. ..

The second screw F2 is screwed into the screw hole G1 of the boss 557. Then, the head of the second screw F2 comes into contact with the pair of protruding ribs 318 on the left and right peripheral edges of the through hole 311. In this state, the left side inclined portion 3D is substantially parallel to the XZ plane, while the left side flat portion 3C is inclined with respect to the XZ plane. That is, the second mounting portion 32 is mounted on the second target portion T2 (see FIG. 11) included in the second housing 5B. Here, the second target portion T2 corresponds to a boss 557 having a screw hole G1.

As shown in FIG. 11, the second block 50B has a cross-shaped insertion protrusion 559 that projects rearward from the back surface of the base portion 550. A reinforcing rib 560 is provided around the insertion protrusion 559. The rib 560 has an inclined surface 561 on its end surface. When the holding member 3 is attached to the second block 50B, the insertion protrusion 559 is inserted into the through hole 310 of the left flat portion 3C constituting the first attachment portion 31. At this time, the inclined surface 561 of the rib 560 and the front surface of the left flat portion 3C are substantially in contact with each other. Therefore, the left flat portion 3C inclined with respect to the XZ plane is stably positioned by the insertion protrusion 559 and the rib 560.

Then, the sensor substrate 25 on which the image sensor 21 is mounted is fixed to the holding member 3 with two first screws F1 (see FIG. 12B). Finally, the second block 50B to which the imaging unit 2 is fixed is assembled to the first block 50A.

By attaching the holding member 3 to the second block 50B in this way, the optical axis C1 of the image pickup unit 2 as a whole is oriented in the front direction of the second housing 5B, unlike the case where the holding member 3 is fixed to the first housing 5A. On the other hand, it is fixed to the second housing 5B in an inclined state (see FIGS. 6 and 13).

By the way, with respect to the two second screws F2 of the present embodiment, the same type of screws are used in the first entrance device 1A and the second entrance device 1B (common parts). However, if the second screw F2 having the same length as the first entrance device 1A is used in the second entrance device 1B, the length of the screw may be excessive. Therefore, the protrusion 558D and the pair of protruding ribs 318 are provided, and the head of the second screw F2 is brought into contact with them to eliminate the remainder.

(2.6) Sharing of Imaging Units As described above, the imaging unit 2 of the present embodiment is shared by two types of housings 5 (first housing 5A and second housing 5B) having different structures. (Common parts). Therefore, the commonality can be improved.

In particular, the image pickup unit 2 is fixed to the first housing 5A by the first mounting portion 31 and the third mounting portion 33. Further, the image pickup unit 2 is fixed to the second housing 5B by the second mounting portion 32 and the third mounting portion 33. Therefore, more stable mounting can be provided for each of the first housing 5A and the second housing 5B.

Further, the first mounting portion 31, the second mounting portion 32, and the third mounting portion 33 are all provided on the holding member 3. Therefore, the commonality is further improved as compared with the case where these are provided in separate members.

Further, since the image pickup unit 20 is attached to the cover 50 in each of the first housing 5A and the second housing 5B from the back side thereof, the appearance is less likely to be impaired while improving the commonality. In particular, the lens portion 22 is accommodated in the accommodating portion 500 of the cover 50 from the back side so that at least a part of the lens surface 220 is exposed on the front side of the cover 50. Therefore, it is possible to suppress the possibility that the functional performance of the imaging unit 20 is impaired while realizing stable positioning of the imaging unit 20.

(2.7) Optical Axis of Imaging Unit Here, the optical axis C1 of the imaging unit 20 in the first entrance device 1A and the second entrance device 1B will be specifically described.

In the first entrance device 1A, the optical axis C1 (see FIG. 7) of the imaging unit 20 forms a first angle θ1 (see FIG. 7) with respect to the front direction of the first housing 5A. In other words, the first mounting portion 31 of the imaging unit 2 has the imaging unit 20 in the first housing so that the optical axis C1 of the imaging unit 20 forms the first angle θ1 with respect to the front direction of the first housing 5A. It is a part for attaching to 5A. Here, the first angle θ1 is, for example, 0 ° to several °.

In the second entrance device 1B, the optical axis C1 (see FIG. 14) of the imaging unit 20 forms a second angle θ2 (see FIG. 14) with respect to the front direction of the second housing 5B. In other words, the second mounting portion 32 of the imaging unit 2 mounts the imaging unit 20 on the second housing 5B so that the optical axis C1 forms a second angle θ2 with respect to the front direction of the second housing 5B. It is the part of. The second angle θ2 is different from the first angle θ1. The second angle θ2 substantially coincides with the predetermined angle (formed by the penetrating direction of the lens hole 506 and the front direction) described above. Here, the second angle θ2 is about 30 ° as an example.

For example, even if there is a difference in the installation location such as a wall surface or an inclined surface of a mounting base, a structure in which the angle of the optical axis C1 with respect to the front direction is different in order to secure a constant image pickup area (field of view) of the image pickup unit 20. May be provided to the entrance device 1. On the other hand, by applying the image pickup unit 2 of the present embodiment in common, the optical axis C1 of the image pickup unit 20 is achieved between the first housing 5A and the second housing 5B while improving the commonality. Angles can be different from each other. In particular, the holding member 3 has a shape in which a plate-shaped member is bent as a whole, thereby providing a structure in which the angle of the optical axis C1 is different.

By the way, at least a part (generally all) of the lens surface 220 projects to the front side of the cover 50 in a state where the lens portion 22 is accommodated in the accommodating portion 500.

Specifically, as shown in FIGS. 7 and 8, the lens surface 220 further protrudes from the front end of the cylindrical portion Y1 in the cover 50 of the first housing 5A. Since the front end of the cylindrical portion Y1 is further projected from the front surface of the decorative panel 52, the lens surface 220 is also further projected from the front surface of the decorative panel 52.

Similarly, as shown in FIGS. 14 and 15, the lens surface 220 further protrudes from the front end of the dome portion Y2 in the cover 50 of the second housing 5B. Since the front end of the dome portion Y2 is further projected from the front surface of the decorative panel 52, the lens surface 220 is also further projected from the front surface of the decorative panel 52.

In this way, since the lens surface 220 projects toward the front side of the cover 50, it is possible to increase the imaging area (field of view) of the imaging unit 20.

(3) Modified Example The above embodiment is only one of various embodiments of the present disclosure. The above-described embodiment can be changed in various ways depending on the design and the like as long as the object of the present disclosure can be achieved. Hereinafter, modifications of the above embodiment will be listed. The modifications described below can be applied in combination as appropriate. Hereinafter, the above embodiment may be referred to as a “basic example”.

(3.1) Modification 1
Hereinafter, this modification (modification example 1) will be described with reference to FIGS. 17A and 17B.

In the basic example, the image pickup unit 2 is shared and applied to two types of the first housing 5A and the second housing 5B. This modification differs from the basic example in that the housing 5 is applied in common to the two types of imaging units 2.

17A and 17B show schematic cross-sectional views of the holding member 3 of the two types of imaging units 2 and the cover 50 of the housing 5.

The housing 5 includes a first fixing portion X1 and a second fixing portion X2. The housing 5 is a housing of the device U0. The device U0 is the entrance device 1 as in the basic example, for example.

As shown in FIG. 17A, the first fixing portion X1 is a portion for fixing the first imaging unit 2A having the first imaging unit 20A. The first imaging unit 2A has a substantially rectangular plate-shaped holding member 3L. The holding member 3L has a main body portion 300L that holds the lens portion 22 (not shown in FIG. 17A) of the imaging unit 20. The main body portion 300L has a through hole 30L penetrating in the thickness direction.

The first fixing portion X1 is a portion that protrudes rearward from the back surface of the cover 50 of the housing 5, and has a screw hole G3. The first imaging unit 2A is fixed to the housing 5 by inserting the screw F3 into the through hole 30L of the holding member 3L and screwing it into the screw hole G3 of the first fixing portion X1.

With the first imaging unit 2A fixed to the housing 5, the thickness direction of the main body 300L is substantially parallel to the front-rear direction. As a result, the optical axis C1 of the imaging unit 20 is substantially parallel in the front-rear direction.

As shown in FIG. 17B, the second fixing portion X2 is a portion for fixing the second imaging unit 2B having the second imaging unit 20B. The second imaging unit 2B has a structure different from that of the first imaging unit 2A. The second imaging unit 2B has a substantially rectangular plate-shaped holding member 3M. The holding member 3M has a main body portion 300M that holds the lens portion 22 (not shown in FIG. 17B) of the imaging unit 20. The main body 300M has a through hole 30M that penetrates diagonally with respect to the thickness direction.

The second fixing portion X2 is a portion that protrudes rearward from the back surface of the cover 50 of the housing 5, and has a screw hole G4. The second fixed portion X2 may be a portion different from the first fixed portion X1 or may be the same portion. By inserting the screw F3 (of the same type as the screw F3 used in the first fixing portion X1) into the through hole 30M of the holding member 3M and screwing it into the screw hole G4 of the second fixing portion X2, the second The image pickup unit 2B is fixed to the housing 5.

With the second imaging unit 2B fixed to the housing 5, the thickness direction of the main body 300M is inclined with respect to the front-rear direction. As a result, the optical axis C1 of the imaging unit 20 is also inclined with respect to the front-rear direction.

In this way, the housing 5 selectively fixes either the first imaging unit 2A or the second imaging unit 2B.

In this configuration, the housing 5 can be shared and applied to two types of imaging units 2 (first imaging unit 2A and second imaging unit 2B) having different structures (common parts). Therefore, the commonality can be improved. In particular, when the housing 5 is shared and applied, the angles of the optical axes C1 of the imaging unit 20 can be made different from each other while improving the commonality as in the basic example.

(3.2) Other Modifications In the basic example, the device U0 provided with the image pickup unit 2 is the intercom entrance device 1, but is not particularly limited. The device U0 is not limited to the intercom entrance device 1, and may be a device that does not have an intercom function.

In the basic example, the image pickup unit 2 includes a third mounting portion 33 as a common portion. However, the third mounting portion 33 is not an essential component for the imaging unit 2, and may be omitted. In the basic example, all of the first mounting portion 31, the second mounting portion 32, and the third mounting portion 33 are provided on the holding member 3 which is a single molded product. However, for example, only the first mounting portion 31 and the second mounting portion 32 may be provided on the holding member 3. Further, the first mounting portion 31, the second mounting portion 32 and the third mounting portion 33 may be provided on separate members. For example, the first mounting portion 31, the second mounting portion 32, and the third mounting portion 33 are separately provided as two or more members, and the two or more members are assembled by screwing, adhesion, or the like. May be good.

In the basic example, the holding member 3 is attached to the cover 50 by two screws. However, the holding member 3 may be attached to the cover 50 by means other than screws, for example, by adhesion.

In the basic example, the target to which the holding member 3 is attached is the cover 50. However, the target to which the holding member 3 is attached may be the case 51.

(4) Summary As described above, the image pickup unit (2) according to the first aspect includes an image pickup unit (20), a first attachment portion (31), and a second attachment portion (32). The first mounting portion (31) mounts the imaging unit (20) to the first housing (5A) of the first device (U1). The second mounting portion (32) mounts the imaging unit (20) on the second housing (5B) of the second device (U2) different from the first device (U1). The image pickup unit (2) is selectively fixed to either the first housing (5A) or the second housing (5B). According to the first aspect, the commonality can be improved.

Regarding the image pickup unit (2) according to the second aspect, in the first aspect, the first attachment portion (31) is as follows. That is, the first mounting portion (31) has an imaging portion (θ1) such that the optical axis (C1) of the imaging portion (20) forms a first angle (θ1) with respect to the front direction of the first housing (5A). 20) is a part for attaching to the first housing (5A). Further, the second mounting portion (32) is imaged so that the optical axis (C1) forms a second angle (θ2) different from the first angle (θ1) with respect to the front direction of the second housing (5B). It is a part for attaching the part (20) to the second housing (5B). According to the second aspect, the angles of the optical axes (C1) of the imaging unit (20) are made different between the first housing (5A) and the second housing (5B) while improving the commonality. be able to.

Regarding the image pickup unit (2) according to the third aspect, in the first aspect or the second aspect, the first mounting portion (31) is attached to the first target portion (T1) included in the first housing (5A). It is attached. The second mounting portion (32) is mounted on the second target portion (T2) included in the second housing (5B). According to the third aspect, it is possible to provide stable attachment to each of the first housing (5A) and the second housing (5B) while improving the commonality.

In any one of the first to third aspects, the imaging unit (2) according to the fourth aspect has the imaging unit (20) as either the first housing (5A) or the second housing (5B). A third mounting portion (33) is further provided as a common portion for mounting on the vehicle. According to the fourth aspect, the commonality is further improved (commonization of the third mounting portion (33)).

The imaging unit (2) according to the fifth aspect further includes a holding member (3) that holds at least a part of the imaging unit (20) in the fourth aspect. The first mounting portion (31), the second mounting portion (32), and the third mounting portion (33) are provided on the holding member (3). According to the fifth aspect, the commonality is further improved as compared with the case where the first mounting portion (31), the second mounting portion (32) and the third mounting portion (33) are provided on separate members. Will be done.

Regarding the image pickup unit (2) according to the sixth aspect, in the fourth or fifth aspect, the third mounting portion (33) is attached to the third target portion (T3) included in the first housing (5A). It is attached. The third mounting portion (33) is mounted on the fourth target portion (T4) included in the second housing (5B). According to the sixth aspect, stable mounting to each of the first housing (5A) and the second housing (5B) can be provided while improving the commonality.

Regarding the image pickup unit (2) according to the seventh aspect, in any one of the fourth to sixth aspects, the image pickup unit (2) is formed by the first attachment portion (31) and the third attachment portion (33). It is fixed to the first housing (5A). Further, the image pickup unit (2) is fixed to the second housing (5B) by the second mounting portion (32) and the third mounting portion (33). According to the seventh aspect, more stable mounting can be provided for each of the first housing (5A) and the second housing (5B).

Regarding the image pickup unit (2) according to the eighth aspect, in any one of the first to seventh aspects, the image pickup unit (20) is of the first housing (5A) and the second housing (5B). It is attached from the back side to the front side cover (50) in each. According to the eighth aspect, the appearance is less likely to be impaired while improving the commonality.

Regarding the image pickup unit (2) according to the ninth aspect, in the eighth aspect, the image pickup unit (20) has a lens unit (22). The lens portion (22) is accommodated in the accommodating portion (500) of the cover (50) from the back side so that at least a part of the lens surface (220) is exposed on the front side of the cover (50). According to the ninth aspect, it is possible to suppress the possibility that the functional performance of the imaging unit (20) is impaired while realizing stable positioning of the imaging unit (20).

Regarding the imaging unit (2) according to the tenth aspect, in the ninth aspect, at least a part of the lens surface (220) is covered (with the lens portion (22) accommodated in the accommodating portion (500)). It protrudes toward the front side of 50). According to the tenth aspect, the imaging area (field of view) of the imaging unit (20) can be increased.

The device (U0) according to the eleventh aspect includes an imaging unit (2) in any one of the first to tenth aspects, and a first housing (5A) or a second housing (5B). .. According to the eleventh aspect, it is possible to provide an apparatus (U0) including an imaging unit (2) capable of improving commonality.

The intercom system (10) according to the twelfth aspect includes the device (U0) in the eleventh aspect and an information terminal (D1) capable of communicating with the device (U0). The device (U0) is an intercom entrance device (1). According to the twelfth aspect, it is possible to provide an intercom system (10) capable of improving commonality.

The housing (5) according to the thirteenth aspect is the housing of the device (U0). The housing (5) includes a first fixing portion (X1) and a second fixing portion (X2). The first fixing unit (X1) fixes the first imaging unit (2A) having the first imaging unit (20A). The second fixing unit (X2) has a second imaging unit (20B) and fixes a second imaging unit (2B) having a structure different from that of the first imaging unit (2A). The housing (5) selectively fixes either the first imaging unit (2A) or the second imaging unit (2B). According to the thirteenth aspect, the commonality can be improved.

The configurations according to the second to tenth aspects are not essential configurations for the imaging unit (2) and can be omitted as appropriate.

1 Interphone entrance device 2 Imaging unit 2A 1st imaging unit 2B 2nd imaging unit 20 Imaging unit 20A 1st imaging unit 20B 2nd imaging unit 22 Lens unit 220 Lens surface 3 Holding member 31 1st mounting unit 32 2nd mounting unit 33 3rd mounting part 5 housing 5A 1st housing 5B 2nd housing 50 cover 500 storage part C1 optical axis D1 information terminal T1 1st target part T2 2nd target part T3 3rd target part T4 4th target part U0 device U1 1st equipment U2 2nd equipment X1 1st fixed part X2 2nd fixed part θ1 1st angle θ2 2nd angle

Claims (13)

Imaging unit and
A first mounting portion for mounting the imaging unit on the first housing of the first device,
A second mounting portion for mounting the imaging unit on a second housing of a second device different from the first device,
With
It is selectively fixed to either the first housing or the second housing.
Imaging unit. The first mounting portion is a portion for mounting the imaging unit on the first housing so that the optical axis of the imaging unit forms a first angle with respect to the front direction of the first housing.
The second mounting portion is for mounting the imaging unit on the second housing so that the optical axis forms a second angle different from the first angle with respect to the front direction of the second housing. The part,
The imaging unit according to claim 1. The first mounting portion is mounted on the first target portion of the first housing.
The second mounting portion is mounted on the second target portion of the second housing.
The imaging unit according to claim 1 or 2. A third mounting portion is further provided as a common portion for mounting the imaging unit on either the first housing or the second housing.
The imaging unit according to any one of claims 1 to 3. A holding member for holding at least a part of the imaging unit is further provided.
The first mounting portion, the second mounting portion, and the third mounting portion are provided on the holding member.
The imaging unit according to claim 4. The third mounting portion is mounted on the third target portion of the first housing.
The third mounting portion is mounted on the fourth target portion of the second housing.
The imaging unit according to claim 4 or 5. The image pickup unit is fixed to the first housing by the first mounting portion and the third mounting portion, and is fixed to the second housing by the second mounting portion and the third mounting portion.
The imaging unit according to any one of claims 4 to 6. The imaging unit is attached to the front cover of each of the first housing and the second housing from the back side.
The imaging unit according to any one of claims 1 to 7. The imaging unit has a lens unit and has a lens unit.
The lens portion is housed in the accommodating portion of the cover from the back side so that at least a part of the lens surface is exposed on the front side of the cover.
The imaging unit according to claim 8. At least a part of the lens surface projects toward the front side of the cover with the lens portion accommodated in the accommodating portion.
The imaging unit according to claim 9. The imaging unit according to any one of claims 1 to 10, and the imaging unit.
With the first housing or the second housing
To prepare
machine. The device according to claim 11 and
An information terminal capable of communicating with the device and
With
The device is an intercom entrance device.
Intercom system. The housing of the device
A first fixed portion for fixing the first imaging unit having the first imaging unit, and
A second fixing unit having a second imaging unit and fixing a second imaging unit having a structure different from that of the first imaging unit.
With
Either the first imaging unit or the second imaging unit is selectively fixed.
Housing.

Images