Mounting mechanism of intelligent equipment and access control host

Abstract

The utility model discloses a mounting mechanism of intelligent equipment and an access control host. The mounting mechanism comprises a base, a shell, a sensor, a rotating table, a first driving unit and a control unit, the sensor is arranged in the first groove and used for collecting the distance between an external object and the current base through the through hole; the rotating table is arranged at the top of the shell; the first driving unit is arranged in the first accommodating cavity, is in transmission connection with the rotating table and is used for driving the rotating table to rotate; and the control unit is electrically connected with the sensor, the first driving unit and the intelligent equipment. The distance between an external object in the sensor range and the current base can be sensed in time through the sensor, and the control unit controls the first driving unit to drive the rotating table to rotate to the position of the external object without adjusting the posture of the object.

Description

Technical Field

[0001] The utility model relates to the technical field of human-computer interaction, and in particular to an installation mechanism for intelligent equipment and a door access control host. Background Art

[0002] Existing access control mechanisms are used in application scenarios such as clocking in and out, commuting, cultural exhibition halls, and teaching places. When in use, the access control mechanism is fixed on the external structure, and the user is required to automatically adjust the posture or perform a certain action: such as fingerprint, iris, and face recognition, which require the user to adjust the posture by himself and align the collection device for identification. Otherwise, unclear recognition or recognition deviation problems are prone to occur, especially in scenarios with multiple people in a short period of time. Multiple people pass through a single access control mechanism one after another, which takes too long and makes the access control mechanism inconvenient to use. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide an installation mechanism for a smart device and a door access control host.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the utility model is:

[0005] In a first aspect, the present application provides an installation mechanism for an intelligent device, comprising a base, a shell, a sensor, a rotating table, a first drive unit and a control unit; the shell cover is closed on the base, the shell has a first accommodating cavity and a first opening, the first opening is adapted to the base, a first groove is further provided on the inner side wall of the shell, and an egress hole is further provided on the inner side wall of the shell where the first groove is located; the sensor is arranged in the first groove, for collecting the distance between an external object and the current base through the egress hole; the rotating table is arranged on the top of the shell, for installing the corresponding intelligent device; the first drive unit is arranged in the first accommodating cavity, the first drive unit is transmission-connected to the rotating table, for driving the rotating table to rotate; the control unit is electrically connected to the sensor, the first drive unit and the intelligent device.

[0006] In some embodiments, the first groove extends in an arc shape, and the number of the through holes is multiple and distributed along the extension direction of the first groove; the sensor is transmission-connected to the first driving unit, and the first driving unit is also used to drive the sensor to rotate.

[0007] In some embodiments, it also includes a first guide rail and a second guide rail, the first guide rail is arranged on the top surface of the shell, the first guide rail is in a circular ring shape, the upper surface of the first guide rail is provided with a first platform and a second platform, and the first platform is higher than the second platform; the second guide rail is arranged on the bottom surface of the rotating table, the second guide rail is in a circular ring shape, the lower surface of the second guide rail is provided with a third platform and a fourth platform, and the third platform is higher than the fourth platform; the third platform is adapted to the first platform, and the fourth platform is adapted to the second platform.

[0008] In some embodiments, a cross key is disposed at the output end of the first driving unit; a cross groove is disposed at the center point of the bottom surface of the rotating platform, and the cross groove is engaged with the cross key.

[0009] In some embodiments, a first wiring hole is provided on the rotating table; a second wiring hole is provided on the top of the shell, and the second wiring hole extends in an arc shape; the connecting wiring harness between the smart device and the control unit passes through the second wiring hole and the first wiring hole from bottom to top in turn to connect the smart device and the control unit.

[0010] In some embodiments, it also includes a button and an indicator light, the button is electrically connected to the control unit, and the button is arranged on the side wall and / or the top surface of the shell; the indicator light is electrically connected to the control unit, the indicator light and the button correspond one-to-one, and the indicator light is arranged on the side wall and / or the top surface of the shell.

[0011] In some embodiments, it also includes a power module and a sound module. The power module is arranged in the first accommodating cavity, and the power module is electrically connected to the control unit, the sensor and the first driving unit; the sound module is arranged in the first accommodating cavity, and the sound module is electrically connected to the control unit.

[0012] In some embodiments, the number of the first grooves is two, and the two first grooves are arranged opposite to each other, the number of the sensors is two, and one sensor is arranged in one first groove.

[0013] In some embodiments, a gate assembly is also included, which includes a gate and a second drive unit. The second drive unit is electrically connected to the control unit, and the second drive unit is used to drive the gate to open and close.

[0014] In a second aspect, the present application also provides an access control host, which is installed and fixed by an installation mechanism of a smart device described in the first aspect.

[0015] By adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0016] The mechanism includes a base, a shell, a sensor, a rotating table, a first drive unit and a control unit; the shell is covered on the base, the shell has a first accommodating cavity and a first opening, the first opening is adapted to the base, a first groove is also provided on the inner side wall of the shell, and a see-through hole is also provided on the inner side wall of the shell where the first groove is located; the sensor is arranged in the first groove, and is used to collect the distance between the external object and the current base through the see-through hole; the rotating table is arranged on the top of the shell, and is used to install the intelligent device; the first drive unit is arranged in the first accommodating cavity, and the first drive unit is connected to the rotating table in a transmission manner, and is used to drive the rotating table to rotate; the control unit is electrically connected to the sensor, the first drive unit and the intelligent device. The sensor can timely sense the distance between the external object within the sensor range and the current base, and the control unit controls the first drive unit to drive the rotating table to rotate to the position of the external object, and then controls the intelligent device to collect the external object, without adjusting the posture of the external object, thereby improving the recognition efficiency of the intelligent device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 is a first schematic diagram of a mounting mechanism of a smart device according to a specific implementation manner;

[0019] Figure 2 is an exploded schematic diagram of a mounting mechanism of a smart device according to a specific implementation manner;

[0020] Figure 3 is a schematic diagram of the rotating platform and the first driving unit described in the specific implementation mode;

[0021] Figure 4 is a schematic diagram of a housing according to a specific embodiment;

[0022] Figure 5 It is a cross-sectional schematic diagram of the installation mechanism of the smart device described in the specific implementation method.

[0023] Reference numerals:

[0024] 1. Base;

[0025] 2. Shell;

[0026] 21. A first accommodating cavity;

[0027] 22. first groove;

[0028] 23. Through hole;

[0029] 24. Second groove;

[0030] 3. Sensor;

[0031] 4. Rotating table;

[0032] 41. Cross groove;

[0033] 5. A first driving unit;

[0034] 51. Cross key;

[0035] 6. Control unit;

[0036] 71. First guide rail;

[0037] 72. Second guide rail;

[0038] 8. Indicator light;

[0039] 9. Power module. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is particularly noted that the following embodiments are only used to illustrate the present invention, but do not limit the scope of the present invention. Similarly, the following embodiments are only partial embodiments of the present invention rather than all embodiments. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figures 1 to 5 In the first aspect, the present embodiment provides an installation mechanism for an intelligent device, including a base 1, a shell 2, a sensor 3, a rotating table 4, a first driving unit 5 and a control unit 6; the shell 2 is covered on the base 1, the shell 2 has a first accommodating cavity 21 and a first opening, the first opening is adapted to the base 1, a first groove 22 is further provided on the inner side wall of the shell 2, and a through hole 23 is further provided on the inner side wall of the shell 2 where the first groove 22 is located; the sensor 3 is arranged in the first groove 22, and is used to collect the distance between the external object and the current base 1 through the through hole 23; the rotating table 4 is arranged on the top of the shell 2, and is used to install the intelligent device; the first driving unit 5 is arranged in the first accommodating cavity 21, and the first driving unit 5 is transmission-connected with the rotating table 4, and is used to drive the rotating table 4 to rotate; the control unit 6 is electrically connected to the sensor 3, the first driving unit 5 and the intelligent device.

[0042] In this embodiment, the base 1 can be set in an external structure, such as a cabinet, a wall, or a support frame related to a gate switch, etc., and is adjusted according to the actual setting position. The shell 2 has a first opening and a first accommodating cavity 21, the first opening is connected to the first accommodating cavity 21, and the first opening is set downward to snap on the base 1, and the base 1 can close the first accommodating cavity 21. Optionally, the base 1 is disc-shaped and the shell 2 is cylindrical, which is consistent with the rotation design of the rotating platform 4.

[0043] The inner wall of the housing 2 is provided with a first groove 22. Figure 4 As shown, the first groove 22 is a structure in which the inner wall is concave toward the outer side, and the sensor 3 is arranged in the first groove 22. A through hole 23 is arranged on the inner wall of the first groove 22. The number and shape of the through holes 23 can be set according to actual needs. The through holes 23 are used for input and output of sensing signals of the sensor 3. Specifically, the sensor 3 is a displacement sensor 3 or a sensor 3 capable of collecting distance information, such as a photoelectric distance sensor 3 or an infrared sensor 3.

[0044] Further, a rotating platform 4 is provided on the top of the housing 2. The rotating platform 4 is a thin sheet structure. The rotating platform 4 is used to support smart devices. For example, when the smart device is an independent terminal such as a mobile phone or a tablet, the mobile phone or tablet can be placed on the rotating platform 4. When the smart device is a video camera or a camera, it can be fixed on the rotating platform 4 by bolts or the like. The smart device can also be an iris acquisition device, a fingerprint acquisition device, etc. The rotating platform 4 is driven by a first driving unit 5. The first driving unit 5 can be a motor, a cylinder, or a driving device such as a steering gear. This embodiment does not limit this. The connection between the rotating platform 4 and the housing 2 can be a bearing connection, a roller connection, etc. This embodiment does not limit the connection method between the rotating platform 4 and the housing 2. Optionally, a guide bar can be provided on the top surface of the housing 2, and a guide groove can be provided on the bottom surface of the rotating platform 4 accordingly. The setting of the guide bar and the guide groove can realize the guidance of the rotating platform 4 during the rotation process, so as to improve the flexibility and smoothness of the rotation of the rotating platform 4.

[0045] Taking face recognition as an example, when a user enters the sensing range of sensor 3, sensor 3 detects the presence of a human body outside, and transmits this sensing signal to control unit 6 in time. Control unit 6 generates a control signal of first drive unit 5 according to the sensing signal, and the control signal can make the first drive unit 5 rotate to a certain angle so that the image acquisition end of the smart device is aligned with the face. In some preferred embodiments, control unit 6 can also convert the distance information in the sensing signal into focal length information in the smart device to realize automatic zoom control, so as to further improve the efficiency of face recognition. It can be understood that control unit 6 in this embodiment can be an electronic device with logic operation function such as single chip microcomputer, STM chip, microcomputer, etc., and the above process can be realized in any electronic device with logic operation function.

[0046] This embodiment, by setting the sensor 3, the control unit 6, the first drive unit 5, and the rotating platform 4, realizes that the smart device can automatically adjust the angle according to the area where the human body is located during the human-computer interaction process, reducing the steps of adjusting the posture of the human body. From the above-mentioned example of the use of the face, it can be seen that the installation mechanism shown in this embodiment simplifies the steps of manually approaching the face for recognition, especially in commuting scenarios, when multiple people need to be recognized separately, the automatic adjustment of the image acquisition unit can save everyone's operation time and improve the speed and accuracy of face recognition.

[0047] In some embodiments, the first groove 22 extends in an arc shape, and the number of the through holes 23 is multiple and distributed along the extension direction of the first groove 22; the sensor 3 is transmission-connected to the first driving unit 5, and the first driving unit 5 is also used to drive the sensor 3 to rotate. In this embodiment, the first groove 22 extends in an arc shape, which can be understood as follows: the extension trend of the groove body of the first groove 22 is the same as the extension trend of the side wall of the housing 2, that is, the first groove 22 can be arranged on the housing 2 in a semicircular ring structure or a circular ring structure, and this arrangement can provide the sensor 3 with the space required for rotation.

[0048] Furthermore, the through holes 23 are distributed along the extension direction of the first groove 22 , and can be distributed at intervals, or the through holes 23 can be directly made into strip-shaped notches, and the extension direction of the notches is the same as the extension direction of the first groove 22 .

[0049] When in use, the sensor 3 is connected to the first driving unit 5 by transmission. When the first driving unit 5 drives the rotating platform 4 to rotate, the sensor 3 is synchronously driven to rotate. Then, the distance between the human body that currently needs face recognition and the current base 1 collected by the sensor 3 is a straight-line distance, and the distance information of the sensor 3 obtained by the control unit 6 will be more accurate. When the control unit 6 needs to adjust the focal length according to the distance information, it can be adjusted more accurately; or, the control unit 6 can monitor the rotation angle of the rotating platform 4 driven by the first driving unit 5 according to the feedback of the distance information collected by the sensor 3, so as to improve the precise control of the rotation angle of the rotating platform 4.

[0050] See also Figure 2 and Figure 4 In some embodiments, the number of the first grooves 22 is two, and the two first grooves 22 are arranged opposite to each other, the number of the sensors 3 is two, and one sensor 3 is arranged in one first groove 22. Optionally, the arrangement of the two sensors 3 can obtain two distance information of the human body relative to the base 1, and the control unit 6 can further convert the distance between the human body and the current smart device according to the two distance information, so that the control signal of the control unit 6 to the first driving unit 5 can be more accurate, so as to improve the accuracy of automatic adjustment of the smart device.

[0051] See also Figure 2 and Figure 5 In some embodiments, it also includes a first guide rail 71 and a second guide rail 72. The first guide rail 71 is arranged on the top surface of the shell 2, and the first guide rail 71 is in a circular shape. The upper surface of the first guide rail 71 is provided with a first platform and a second platform, and the first platform is higher than the second platform; the second guide rail 72 is arranged on the bottom surface of the rotating table 4, and the second guide rail 72 is in a circular shape. The lower surface of the second guide rail 72 is provided with a third platform and a fourth platform, and the third platform is higher than the fourth platform; the third platform is adapted to the first platform, and the fourth platform is adapted to the second platform.

[0052] In this embodiment, the first guide rail 71 and the second guide rail 72 can be understood as structures that play a supporting and guiding role between the shell 2 and the rotating table 4. Optionally, in some embodiments, the first guide rail 71 and the second guide rail 72 can respectively represent two parts of the bearing. For example, when the bearing is a tapered roller bearing, the part of the tapered roller bearing that is fixed to the shell 2 is called the first guide rail 71, and the part of the tapered roller bearing that is fixed to the rotating table 4 is called the second guide rail 72.

[0053] In some embodiments, the first guide rail 71 is in a circular ring shape, and the second guide rail 72 is also in a circular ring shape, wherein the upper surface of the first guide rail 71 has a first platform and a second platform, and there is a height difference between the first platform and the second platform, wherein the first platform is higher than the second platform, that is, the first platform is in a circular ring shape, and the second platform is also in a circular ring shape, then there is a vertical cylindrical side structure between the first platform and the second platform, when the diameter of the first platform is larger than that of the second platform, the first guide rail 71 is an annular bushing with an inner recessed stepped structure; when the diameter of the first platform is smaller than that of the second platform, the first guide rail 71 is an annular bushing with an inner convex stepped structure.

[0054] Correspondingly, the lower surface of the second guide rail 72 has a third platform and a fourth platform, and there is a height difference between the third platform and the fourth platform, wherein the third platform is higher than the fourth platform, that is, the third platform is a circular ring, and the fourth platform is also a circular ring, then there is a vertical cylindrical side structure between the third platform and the fourth platform, when the diameter of the third platform is larger than that of the fourth platform, the third guide rail is an annular bushing with an inner raised step structure; when the diameter of the third platform is smaller than that of the fourth platform, the third guide rail is an annular bushing with an inner recessed step structure.

[0055] The first guide rail 71 and the second guide rail 72 are connected by sliding through the third platform and the first platform, and the second platform and the fourth platform, thereby improving the smoothness of the connection between the rotating table 4 and the upper surface of the shell 2.

[0056] See also Figure 3 In some embodiments, a cross key 51 is provided at the output end of the first drive unit 5; a cross groove 41 is provided at the center point of the bottom surface of the rotating table 4, and the cross groove 41 is engaged with the cross key 51. This connection method can realize the engagement connection between the first drive unit 5 and the rotating table 4, increase the contact points between the first drive unit 5 and the rotating table 4, and improve the transmission efficiency of the transmission connection between the first drive unit 5 and the rotating table 4.

[0057] In some embodiments, a first wiring hole is provided on the rotating table 4; a second wiring hole is provided on the top of the shell 2, and the second wiring hole extends in an arc shape; the connecting wiring harness between the smart device and the control unit 6 passes through the second wiring hole and the first wiring hole from bottom to top in turn to connect the smart device and the control unit 6.

[0058] In this embodiment, the first wiring hole can be a circular hole structure, and the second wiring hole is an arc-shaped long slot hole. The projection of the first wiring hole in the vertical direction is placed within the projection range of the second wiring hole in the vertical direction. When a wired connection is adopted between the smart device and the control unit 6, the connection harness between the smart device and the control unit 6 is connected to the smart device through the second wiring hole and the first wiring hole at one time. This method can reduce the degree of torsion of the connection harness during the rotation of the rotating table 4 and extend the service life of the connection harness. In addition, the connection method shown in this embodiment is convenient for storing components in the first accommodating cavity 21, and only the smart device is placed on the rotating table 4, which makes the appearance more concise, effectively protects the electronic components, and prevents external dust from interfering with the electronic components.

[0059] See also Figure 2 and Figure 5 In some embodiments, it further includes a button and an indicator light 8, the button is electrically connected to the control unit 6, and the button is arranged on the side wall and / or the top surface of the housing 2; the indicator light 8 is electrically connected to the control unit 6, and the indicator light 8 corresponds to the button one by one, and the indicator light 8 is arranged on the side wall and / or the top surface of the housing 2. In this embodiment, the buttons are arranged on the housing 2, and each button corresponds to an indicator light 8. The functions of the buttons can be restart, power on and off, alarm, lock, etc. This embodiment does not limit the functions of the buttons, and the number of buttons and the number of indicator lights 8 can be set according to actual needs. For example, when the indicator light 8 is green, it is used to indicate that the function represented by the current button is normal.

[0060] In some optional embodiments, when the button and the indicator light 8 are arranged on the side wall of the housing 2, a second groove 24 is provided on the outer side wall of the housing 2, which is recessed from the outside to the inside, and the button and the indicator light 8 are arranged in the second groove 24. Figure 2 and Figure 5 As shown, this method facilitates improving the recognition of the indicator light 8 and the button outside the housing 2, and facilitates the use of the button and the indicator light 8.

[0061] See also Figure 2 and Figure 5 In some embodiments, it also includes a power module 9 and a sound module. The power module 9 is arranged in the first accommodating cavity 21, and the power module 9 is electrically connected to the control unit 6, the sensor 3 and the first driving unit 5; the sound module is arranged in the first accommodating cavity 21, and the sound module is electrically connected to the control unit 6.

[0062] In this embodiment, the power module 9 may specifically include a transformer, a battery, and a plug, etc. The battery is used to store electric energy, and the battery may be a rechargeable battery, such as a lithium battery. The transformer includes a transformer capacitor, a coil, and a fuse, etc. The plug is used to connect the power module 9 to an external electric energy device, replenish the battery with electric energy in time, and convert the electric energy into the current and voltage required by the control unit 6, the sensor 3, and the first drive unit 5. In some optional embodiments, the battery can be used as backup electric energy to prevent the problem that the installation mechanism of the current smart device cannot be used when the external electric energy device is powered off.

[0063] Optionally, a sound module is also included. The sound module can be a speaker or an electronic module with a voice playback function. The sound module can provide timely feedback on the face recognition results, such as "recognition failed", "recognition successful", or use a long "di" to indicate recognition failure and a short "di" to indicate recognition success, etc., so that the user can make timely operations to move away or switch to the next user according to the recognition results, thereby further improving the face recognition efficiency.

[0064] In some embodiments, a gate assembly is also included, the gate assembly includes a gate and a second drive unit, the second drive unit is electrically connected to the control unit 6, and the second drive unit is used to drive the gate to open and close. In this embodiment, the gate can be a commercially available gate, and the second drive unit can drive the gate to open and close. By electrically connecting the second drive unit to the control unit 6, it is convenient to combine the gate with the installation mechanism of the smart device shown in this embodiment, and a single successful face recognition can pass through the gate, which is suitable for use scenarios such as scenic spots and subways where tickets need to be checked one by one.

[0065] In some embodiments, the first driving unit 5 is a steering gear; the sensor 3 is a photoelectric distance sensor 3 or an infrared sensor 3 .

[0066] In the second aspect, this embodiment also provides an access control host, which is installed and fixed by an installation mechanism of a smart device described in the first aspect. For example, the access control host can be a smart device with an image acquisition unit, a smart device with an iris acquisition unit, a smart device with a fingerprint acquisition unit, etc.

[0067] The mechanism includes a base 1, a shell 2, a sensor 3, a rotating table 4, a first driving unit 5 and a control unit 6; the shell 2 is covered on the base 1, the shell 2 has a first accommodating cavity 21 and a first opening, the first opening is adapted to the base 1, the inner side wall of the shell 2 is also provided with a first groove 22, and the shell 2 is also provided with a see-through hole 23 on the inner side wall where the first groove 22 is located; the sensor 3 is arranged in the first groove 22, and is used to collect the distance between the external object and the current base 1 through the see-through hole 23; the rotating table 4 is arranged on the top of the shell 2; the first driving unit 5 is arranged in the first accommodating cavity 21, and the first driving unit 5 is connected to the rotating table 4 in a transmission manner, and is used to drive the rotating table 4 to rotate; the intelligent device is arranged on the rotating table 4; the control unit 6 is electrically connected to the sensor 3, the first driving unit 5 and the intelligent device. The sensor 3 can timely sense the distance between the external object within the range of the sensor 3 and the current base 1, the control unit 6 controls the first driving unit 5 to drive the rotating table 4 to rotate to the position where the external object is located, and then controls the intelligent device to collect the external object, without adjusting the posture of the external object, thereby improving the recognition efficiency of the intelligent device.

[0068] The above descriptions are only some embodiments of the present invention, and do not limit the protection scope of the present invention. Any equivalent mechanism or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mounting mechanism for a smart device, characterized in that: include: A base, arranged in an external structure, wherein the external structure is any one of a cabinet, a wall, and a support frame where a gate is located; A shell, covering the base, the shell having a first accommodating cavity and a first opening, the first opening being adapted to the base, a first groove being further provided on the inner side wall of the shell, and a through hole being further provided on the inner side wall where the first groove is located; A sensor is arranged in the first groove, and is used to collect the distance between the external object and the current base through the through hole, and the sensor is a photoelectric distance sensor or an infrared sensor; A rotating platform is arranged on the top of the housing and is used to install a corresponding smart device, wherein the smart device is any one of a mobile phone, a tablet, a video camera, a camera, an iris collection device, and a fingerprint collection device, and the smart device is connected to the rotating platform by bolts; A first driving unit is disposed in the first accommodating cavity, the first driving unit is drivingly connected to the rotating table, and is used to drive the rotating table to rotate relative to the housing; A control unit is electrically connected to the sensor, the first driving unit and the smart device.

2. The installation mechanism of the smart device according to claim 1, characterized in that: The first groove extends in an arc shape, and the number of the through holes is multiple and distributed along the extension direction of the first groove; The sensor is in transmission connection with the first driving unit, and the first driving unit is also used for driving the sensor to rotate.

3. The installation mechanism of the smart device according to claim 1, characterized in that: Also includes: A first guide rail, arranged on the top surface of the shell, the first guide rail is in a circular ring shape, a first platform and a second platform are arranged on the upper surface of the first guide rail, and the first platform is higher than the second platform; A second guide rail is arranged on the bottom surface of the rotating platform, the second guide rail is in a circular ring shape, a third platform and a fourth platform are arranged on the lower surface of the second guide rail, and the third platform is higher than the fourth platform; The third platform is compatible with the first platform, and the fourth platform is compatible with the second platform.

4. The installation mechanism of the smart device according to claim 3, characterized in that: The output end of the first driving unit is provided with a cross key; A cross groove is provided at the center point of the bottom surface of the rotating platform, and the cross groove is engaged with the cross key.

5. The smart device installation mechanism according to claim 4, characterized in that: The rotating platform is provided with a first wiring hole; A second wiring hole is provided on the top of the housing, and the second wiring hole extends in an arc shape; The connection harness between the smart device and the control unit passes through the second wiring hole and the first wiring hole from bottom to top in sequence to connect the smart device and the control unit.

6. The smart device installation mechanism according to claim 1, characterized in that: Also includes: A button, electrically connected to the control unit, wherein the button is arranged on the side wall and / or the top surface of the housing; An indicator light is electrically connected to the control unit, the indicator lights correspond to the buttons one by one, and the indicator lights are arranged on the side wall and / or the top surface of the shell.

7. The smart device installation mechanism according to claim 1, characterized in that: Also includes: A power module, disposed in the first accommodating cavity, the power module being electrically connected to the control unit, the sensor and the first driving unit; A sound module is disposed in the first accommodating cavity, and the sound module is electrically connected to the control unit.

8. The smart device mounting mechanism according to claim 1 or 2, characterized in that: The number of the first grooves is two, and the two first grooves are arranged opposite to each other. The number of the sensors is two, and one sensor is arranged in one of the first grooves.

9. The smart device installation mechanism according to claim 1, characterized in that: Also includes: The gate assembly includes a gate and a second drive unit, wherein the second drive unit is electrically connected to the control unit, and the second drive unit is used to drive the gate to open and close.

10. A door access control host, characterized in that: The smart device is installed and fixed by using a mounting mechanism of the smart device as described in any one of claims 1 to 9.

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