Access control based on visual identification

Abstract

The utility model provides an access control based on visual identification, which mainly comprises a main body, a camera component is mounted on the front side of the main body, an adjusting hole is formed in the camera component, a camera is mounted in the adjusting hole, a driving motor penetrates through the right end of the camera component and is connected with the left end of a mounting sleeve, and the left end of the driving motor is connected with one end of a connecting shaft. The other end of the connecting shaft sequentially penetrates through the adjusting hole and the connecting base and is connected with the supporting sleeve through a bearing. According to the device, the output end of the driving motor drives the connecting shaft to rotate clockwise or anticlockwise, so that the camera is driven to rotate upwards or downwards, the visual shooting angle is adjusted, and inconvenience caused by the fact that tall adults need to bend down or bend over to operate and small-sized people need to pad feet to operate is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of visual recognition access control devices, and in particular relates to an access control device based on visual recognition. Background Art

[0002] The regional feature analysis algorithm is widely used in face recognition technology. It integrates computer image processing technology and biostatistics principles. It uses computer image processing technology to calculate and extract character feature points from the video, and uses the principles of biostatistics to analyze and establish a mathematical model, namely the face feature template; the established face feature template is used to perform feature analysis on the face of the person being tested, and a similarity value is given based on the analysis results, and then this value can be used to determine whether it is the same person.

[0003] Chinese patent CN217279668U proposes an access control device integrated with a visual chip, including a fixed box, a power module is fixedly installed at the bottom of the inner cavity of the fixed box, a main control chip is fixedly installed on the inner wall of the fixed box, and the main control chip is located on the right side of the power module, a step-down module is arranged above the power module, and the back of the step-down module is fixedly connected to the inner wall of the fixed box. The access control device integrated with a visual chip, by setting a power module, uses the power module through the step-down module to power the main control chip, the camera module and the LCD display screen, uses the camera module to scan the face, uses the main control chip to analyze the facial scanning data, and then controls the steering gear module to realize automatic access control using the facial data, thereby improving the recognition efficiency of the access control device and improving the convenience of using the access control device; however, the device has the following shortcomings:

[0004] 1. When the device is used outdoors in an environment with strong light, the camera will be disturbed by the light, thereby reducing recognition accuracy and efficiency.

[0005] 2. When used by tall or short people, the camera can only rely on wide-angle recognition, which is less efficient. Utility Model Content

[0006] The utility model aims to solve the problems of being affected by environmental interference and being limited by height during video recording, thereby improving the accuracy of recognition.

[0007] To achieve the above-mentioned purpose, the utility model proposes a door access control based on visual recognition, including a main body, a mounting frame is installed at the rear end of the main body, a voice announcer is installed on the upper front part of the main body, a light-shielding groove is provided on the lower side of the voice announcer, fill lights are installed at the left and right ends of the inside of the light-shielding groove, a camera assembly is installed between the two fill lights, the height difference between the camera assembly and the light-shielding groove is 1cm-2cm, an adjustment hole is provided on the shell of the camera assembly, a camera is installed in the camera assembly, the camera is installed on the connecting seat, the lens of the camera is facing the front side wall of the adjustment hole, and the distance between the lens and the adjustment hole is 5mm; a mounting sleeve is installed at the right end of the camera assembly, a driving motor passes through the right end of the camera assembly and is connected to the left end of the mounting sleeve, the left end of the driving motor is connected to one end of the connecting shaft, the connecting seat is fixedly connected to the connecting shaft, the other end of the connecting shaft is connected to the support sleeve through a bearing, and the support sleeve is fixedly installed at the left end inside the camera assembly.

[0008] Fans are arranged at lower positions of both left and right ends of the main body, and fans are installed on the heat dissipation grooves.

[0009] A voice module is electrically connected to the middle of the upper end of the main board, and the voice module is electrically connected to the voice announcer; an information storage module is electrically connected to the left side of the upper side of the main board, a main control module is electrically connected to the main board and is located on the right side of the information storage module, a steering gear module is electrically connected to the main board, and a signal transmission module is electrically connected to the main board and is located on the left side of the steering gear module.

[0010] A temperature sensor is installed at an upper position of the right side wall inside the main body.

[0011] A power supply compartment is installed at the lower side of the main body, a lithium battery is installed inside the power supply compartment, and the power supply compartment is electrically connected to the photovoltaic panel.

[0012] Beneficial effects:

[0013] 1. In the utility model, the output end of the driving motor drives the active rod to rotate clockwise or counterclockwise, thereby driving the camera to rotate upward or downward, so as to adjust the visual camera angle, avoid the inconvenience caused by the need for tall adults to bend over or lean over to operate, and the need for people of smaller stature to stand on tiptoe, etc., and the light is shielded by the light-shielding groove, thereby improving the recognition accuracy and efficiency of the camera.

[0014] 2. In the present invention, two fill lights are used to supplement the light source to improve the recognition accuracy and efficiency, and the light source is absorbed by the photovoltaic panel, so that the light energy is converted into electrical energy through the inverter and stored in the lithium battery, thereby realizing energy-saving and environmentally friendly resource utilization and reducing the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the access control system of the utility model;

[0016] Figure 2 It is a partial cross-sectional view of the access control system of the utility model;

[0017] Figure 3 It is a front sectional view of the camera assembly provided by the utility model;

[0018] Figure 4 This utility model Figure 1 A is an enlarged schematic diagram;

[0019] Figure 5 This is a circuit block diagram provided by the utility model.

[0020] Figure numerals: 1-main body, 2-mounting frame, 3-fan; 4-digital lock; 5-photovoltaic panel; 6-limiting sliding sleeve; 7-portrait display screen; 8-rotating shaft; 9-light-shielding groove; 10-voice announcer; 11-voice module; 12-temperature sensor; 13-main control module; 14-connecting seat; 15-main board; 16-heat dissipation filter; 17-power compartment; 18-lithium battery; 19-signal transmission module; 20-servo module; 21-information storage module; 22-mounting sleeve; 23-drive motor; 24-adjusting hole; 25-support rotating sleeve; 26-connecting shaft, 27-camera; 28-fill light; 29-camera assembly.

[0021] Note: The manufacturer of photovoltaic panels is Mingguang Henghui; the manufacturer of portrait display screen is Greeto, model is P1.66; the manufacturer of voice announcer is Jiangsu Qidong, model is QMPS; the model of voice module is MT-6073; the manufacturer of temperature sensor is Sichuan Bodian Technology, model is PT100; the manufacturer of main control module is Tianjin Huaning, model is KTC101-Z-01.DL3; the manufacturer of motherboard is Gigabyte Technology, model is Gigabyte B650E AORUS MASTER; the manufacturer of the lithium battery is EVE, model number is 18650; the manufacturer of the signal transmission module is Aimoxun, model number is RS232485; the manufacturer of the servo module is SILVERMICRO, model number is FZ1200R17HP4_B2; the manufacturer of the drive motor is drive motor, model number is MS3111D; the manufacturer of the camera is Zhonghui Weiye, model number is ZH2895-HP-B01(2713); the manufacturer of the fill light is ulanzi, model number is VL49 RGB. DETAILED DESCRIPTION

[0022] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0023] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0024] See also Figure 1-4 , a door access control system based on visual recognition, includes a main body 1, and a mounting frame 2 is installed at the rear end of the main body 1.

[0025] The left and right ends of the main body 1 are both provided with fans 3. When the temperature inside the access control device is high, the fans 3 are used to reduce the temperature of the access control device. The two fans 3 are distributed in mirror-image opposition. A heat dissipation filter 16 is installed on one side of the two fans 3. The heat dissipation filter 16 is used to prevent dust and prevent dust and other impurities from entering the inside of the main body 1. A rotating shaft 8 is installed at the left end of the main body 1. The rotating shaft 8 is located at the upper end of the fan 3. The rotating shaft 8 is connected to the photovoltaic panel 5. The connection between the photovoltaic panel 5 and the rotating shaft 8 is sleeved with a limited position sliding sleeve 6.

[0026] A voice announcer 10 is installed on the upper front part of the main body 1, and a light-shielding groove 9 is provided on the lower side of the voice announcer 10. Fill-in lights 28 are installed at the left and right ends inside the light-shielding groove 9. When the light is dim, the fill-in lights 28 are used as supplementary light sources; a camera assembly 29 is installed between the two fill-in lights 28, and the height difference between the camera assembly 29 and the light-shielding groove 9 is 1cm-2cm, which solves the problem of the light-shielding groove blocking the camera angle, and the light is blocked by the light-shielding groove 9, thereby improving the recognition accuracy and efficiency of the camera 27.

[0027] The camera assembly 29 includes an adjustment hole 24, a camera head 27, a drive motor 23, a connecting shaft 26, a connecting seat 14 and a supporting rotating sleeve 25; the camera assembly 29 is provided with an adjustment hole 24, a camera head 27 is installed in the camera assembly 29, the camera head 27 is installed on the connecting seat 14, the lens of the camera head 27 is facing the front side wall of the adjustment hole 24, and the distance between the lens and the adjustment hole 24 is 5 mm, the right end of the camera assembly 29 is provided with a mounting sleeve 22, the drive motor 23 is located inside the camera assembly 29, the drive motor 23 runs through the right end of the camera assembly 29 and is connected to the left side of the mounting sleeve 22 The left end (output end) of the driving motor 23 is connected to one end of the connecting shaft 26, the connecting seat 14 is fixedly connected to the connecting shaft 26, the other end of the connecting shaft 26 is connected to the support sleeve 25 through a bearing, and the support sleeve 25 is fixedly installed at the left end inside the camera assembly 29, and the output end of the driving motor 23 drives the connecting shaft 26 to rotate up and down, thereby driving the camera 27 to rotate upward or downward, so as to adjust the visual camera angle, avoid the need for tall adults to bend over or lean over to operate, and the need for people with smaller stature to step on their feet to operate, thereby causing inconvenience. The front end of the main body 1 is equipped with a portrait display screen 7, which is located on the left side of the lower end of the light-shielding groove 9, and the digital lock 5 is installed at the front end of the main body 1 and on the right side of the lower end of the light-shielding groove 9. The corresponding password can be entered through the digital lock 4, and the voice announcer 12 is used to improve whether the operator can freely enter and exit through the access control.

[0028] A main board 15 is installed in the middle position inside the main body 1, and a voice module 11 is electrically connected to the upper end of the main board 15 near the middle position, and the voice module 11 is electrically connected to the voice announcer 10; an information storage module 21 is electrically connected to the left position on the upper side of the main board 15, a main control module 13 is electrically connected to the main board 15 and is located on the right side of the information storage module 21, a steering gear module 20 is electrically connected to the main board 15, and a signal transmission module 19 is electrically connected to the main board 15 and is located on the left side of the steering gear module 20; the main board 15 is used for overall control of the device and for data interaction.

[0029] A power supply compartment 17 is installed at the lower end of the main body 1, and a lithium battery 18 is installed inside the power supply compartment 17. The power supply compartment 17 is electrically connected to the photovoltaic panel 5. The photovoltaic panel 5 absorbs light energy, thereby converting light energy into electrical energy through an inverter and storing electricity in the lithium battery 18, thereby powering the main control module 13, the fill light 28, the numerical lock 5, the portrait display screen 7 and the temperature sensor 12, thereby realizing energy-saving and environmentally friendly resource utilization and reducing the cost of use; a temperature sensor 12 is installed at the upper position of the right side wall inside the main body 1.

[0030] The working process of this utility model:

[0031] like Figure 5 As described, when a person uses the access control, the access control device starts the driving motor 23, and drives the connecting shaft 26 to rotate upward or downward through the output end of the driving motor 23, thereby driving the camera 29 to rotate upward or downward, so as to adjust the visual camera angle, avoid the inconvenience caused by the need for tall adults to bend over or lean over to operate, and the need for people of smaller stature to stand on tiptoe, etc., when the light is strong, the light is blocked by the light-shielding groove 9, thereby improving the recognition accuracy and efficiency of the camera 29. Although the current camera 29 already has a good night vision effect, in order to improve the recognition quality and efficiency, when the light is dark, two fill lights 28 are used to supplement the light source to improve the recognition accuracy and efficiency;

[0032] When the camera 29 collects the facial information, the facial information is transmitted to the main control module 15 through the signal transmission module 21. The main control module 15 matches the facial information stored in the information storage module 23. When the facial information does not successfully match the facial information stored in the information storage module 23, the main control module 15 sends a prohibition of door opening command to the steering engine module 22; at the same time, the main control module 15 sends a signal of door opening failure to the signal transmission module 21, and then the information transmission module 21 sends the signal of door opening failure to the portrait display screen 9, and the portrait display screen 9 displays door opening failure. When the facial information is matched successfully, the main control module 15 opens the door by sending a prohibition of door opening command to the steering engine module 22; at the same time, the main control module 15 sends a signal of door opening to the signal transmission module 21, and then the information transmission module 21 sends the signal of door opening to the portrait display screen 9, and the portrait display screen 9 displays door opening. When the facial information is matched successfully, the main control module 15 transmits the door opening instruction to the voice module 13, and the voice module 13 transmits the door opening instruction to the voice announcer 12, and the voice announcer 12 performs voice broadcasting.

[0033] The personnel use the digital lock 5 to open the door. After the password is entered through the digital lock 5, the digital lock 5 sends a signal to the main control module 15, and the main control module 15 determines whether the entered password is correct; when the digital password is entered incorrectly, the main control module 15 sends a command to prohibit the door from opening to the steering engine module 22; at the same time, the main control module 15 sends an alarm signal to the voice module 13, and then the voice module 13 sends a command to the voice announcer, and the voice announcer 12 makes a voice announcement to remind that the illegal operation fails to open the door. When the digital password is entered correctly, the main control module 15 sends a door opening command to the steering engine module 22, and the door is opened through the steering engine module 22; at the same time, the main control module 15 sends a door opening signal to the voice module 13, and the voice module 13 sends a command to the voice announcer, and the voice announcer 12 makes a voice announcement to remind that the illegal operation fails to open the door.

[0034] When the temperature sensor 14 transmits the temperature signal in the access control device to the main control module 15, the main control module 15 processes the temperature signal. When the temperature is too high, the main control module 15 controls the fan 4 to adjust the temperature in the access control device, thereby cooling the device.

[0035] During operation, the entire access control device absorbs light through the photovoltaic panel 5, thereby converting light energy into electrical energy through the inverter and storing electricity in the lithium battery 18, thereby powering the main control module 13, the fill light 28, the numerical lock 5, the portrait display screen 7 and the temperature sensor 12, thereby realizing energy-saving and environmentally friendly resource utilization and reducing the cost of use; a temperature sensor 12 is installed at the upper position of the right side wall inside the main body 1.

[0036] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A door access control system based on visual recognition, characterized in that: It includes a main body, and a mounting frame is installed at the rear end of the main body; a voice announcer is installed on the upper front part of the main body, and a light-proof groove is provided on the lower side of the voice announcer. Fill-in lights are installed at the left and right ends of the light-proof groove, and a camera assembly is installed between the two fill-in lights. The height difference between the camera assembly and the light-proof groove is 1cm-2cm. An adjustment hole is provided on the shell of the camera assembly, and a camera is installed in the camera assembly. The camera is installed on the connecting seat, and the lens of the camera faces the front side wall of the adjustment hole, and the distance between the lens and the adjustment hole is 5mm; a mounting sleeve is installed at the right end of the camera assembly, a driving motor passes through the right end of the camera assembly and is connected to the left end of the mounting sleeve, the left end of the driving motor is connected to one end of the connecting shaft, the connecting seat is fixedly connected to the connecting shaft, the other end of the connecting shaft is connected to the supporting sleeve through a bearing, and the supporting sleeve is fixedly installed at the left end inside the camera assembly.

2. The access control system based on visual recognition according to claim 1 is characterized in that: Fans are arranged at lower positions of both left and right ends of the main body, and fans are installed on the heat dissipation grooves.

3. The access control system based on visual recognition according to claim 1 is characterized in that: A main board is installed in the middle position inside the main body, and a voice module is electrically connected to the middle position of the upper end of the main board, and the voice module is electrically connected to the voice announcer; an information storage module is electrically connected to the left position on the upper side of the main board, a main control module is electrically connected to the main board and is located on the right side of the information storage module, a steering gear module is electrically connected to the main board, and a signal transmission module is electrically connected to the main board and is located on the left side of the steering gear module.

4. The access control system based on visual recognition according to claim 1 is characterized in that: A temperature sensor is installed at an upper position of the right side wall inside the main body.

5. The access control system based on visual recognition according to claim 1 is characterized in that: A power supply compartment is installed at the lower side of the main body, a lithium battery is installed inside the power supply compartment, and the power supply compartment is electrically connected to the photovoltaic panel.

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