A door access control device based on face recognition and its use method

Abstract

The invention relates to the field of face recognition access control technology, and discloses an access control device based on face recognition and a method for using the same. The device comprises a detection mechanism, wherein the detection mechanism further comprises a fixing plate, wherein a mounting plate is fixedly connected to the side wall of the fixing plate. When external rainwater is splashed and adheres to the surface of a glass plate, water droplets are gradually formed as the moisture increases. In this process, a rainwater collecting plate collects external rainwater and transmits it from a transmission square tube to a bottom arc-shaped collecting tube. External rainwater enters the arc-shaped collecting tube through the transmission square tube. Since the falling water flow rate in the arc-shaped collecting tube is too fast, the internal air pressure is greater than that outside the arc-shaped collecting tube. Since the internal and external pressures at the leakage groove position are different, an airflow toward the inside of the arc-shaped collecting tube is formed at the position, so that the water droplets adhered to the glass plate position enter the inside of the arc-shaped collecting tube under the flow of wind speed, thereby eliminating water accumulation in the lens and avoiding image errors at the lens position due to the refraction of rainwater.

Description

Technical Field

[0001] The present invention relates to the technical field of face recognition access control equipment, and in particular to an access control device based on face recognition and a method for using the same. Background Art

[0002] The face recognition access control device is based on face recognition technology to control entrances and exits. It is safe, convenient and has a high level of visualization. It automatically verifies and identifies the identities of people entering and leaving through face recognition, completes access control for people, and restricts the entry of irrelevant people. It is mostly set at the entrance of the community.

[0003] Existing access control devices are mostly exposed to outdoor air. When it rains and is windy, the rain will be tilted at an angle. The tilted rain will pass over the rainproof structure and stick to the outer wall of the lens by splashing. The rain will cause the line of sight of the lens to be refracted, resulting in face recognition errors and affecting the recognition sensitivity of the device. To address the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a door access control device based on face recognition, including a detection mechanism, the detection mechanism also includes a fixing plate, a mounting plate is fixedly connected to the side wall of the fixing plate, a transmission square tube is fixedly connected to both ends of the mounting plate, and an arc-shaped collection tube is connected through the bottom of the transmission square tube;

[0005] The cleaning mechanism includes a water collecting pipe connected to the bottom of the arc-shaped collecting pipe, a diverter plate is fixedly connected to the inner wall of the water collecting pipe, and a water outlet pipe is connected to the side wall of the water collecting pipe;

[0006] The scraping mechanism comprises a rainwater collecting plate fixedly connected to the top of the fixing plate, a filter screen 1 is fixedly connected to the top of the rainwater collecting plate, and a sliding column is slidably connected to the inner wall of the through hole of the filter screen 1.

[0007] Preferably, the detection mechanism also includes an identification lens fixedly connected to the inner wall of the mounting plate, a glass plate is fixedly connected to the side wall of the mounting plate, and a support rod is fixedly connected to the bottom of the fixing plate.

[0008] Preferably, the detection mechanism also includes a rain shield fixedly connected to the side wall of the rainwater collecting plate, a water leakage groove is opened on the side wall of the arc-shaped collecting tube, and a protective shell is fixedly connected to the side wall of the transmission square tube. By utilizing the influence of water tension, a rainwater collecting plate and a filter net are arranged inside the device. When the device encounters rainy weather, when external rainwater splashes and sticks to the surface of the glass plate, water droplets are gradually formed as the water content increases. In this process, the rainwater collecting plate collects external rainwater and transmits it from the transmission square tube to the bottom arc-shaped collecting tube, wherein a small gap is formed between the water leakage groove and the mounting plate. When external rainwater passes through the transmission The square tube enters the arc-shaped collecting tube. Since the water flows too fast in the arc-shaped collecting tube, the internal air pressure is greater than that outside the arc-shaped collecting tube. Since the pressure inside and outside the water leakage groove is different, an airflow toward the inside of the arc-shaped collecting tube will be formed at this position, so that the water droplets stuck to the glass plate will flow into the arc-shaped collecting tube due to the wind speed, thereby eliminating the water accumulation on the lens and avoiding the refraction of rainwater at the lens position, which may cause image errors in the process of face recognition, increase the comparison calculation amount of the recognition unit, and thus prolong the time of the entire face recognition, thereby improving the face recognition sensitivity of the entire device on rainy days.

[0009] Preferably, the cleaning mechanism also includes a T-shaped sliding rod slidably connected to the inner wall of the arc-shaped collection tube, the side wall of the T-shaped sliding rod is fixedly connected to the arc-shaped rod, the inner wall of the fixed plate is rotatably connected to a cleaning rotating rod, the side wall of the cleaning rotating rod is rotatably connected to the outer wall of the arc-shaped rod, and when the push rod moves upward, it will drive the sliding column to move upward. If there are dead leaves on the top of the filter net, the sliding column will push the dead leaves away from the filter net, and utilize the characteristics of external wind. When the dead leaves are away from the filter net, the external wind flow will take away the impurities stuck on the top of the filter, thereby avoiding clogging of the filter and affecting the actual efficiency of the rainwater collection plate.

[0010] Preferably, the cleaning mechanism also includes a rotating disk rotatably connected to the end of the cleaning rotating rod away from the arc rod, and absorbent cotton is fixedly connected to the inner wall of the rotating disk, and a telescopic column is fixedly connected to the top of the arc rod, and one end of the telescopic column away from the arc rod is fixedly connected to the bottom of the rainwater collecting plate, and a compressed inclined rod is fixedly connected to the side wall of the mounting plate. Utilizing the force of the falling water flow of the above-mentioned arc collecting pipe, a T-shaped sliding bar is provided inside the device. When the water flow inside the arc collecting pipe acts on the cross surface of the T-shaped sliding bar, the T-shaped sliding bar drives the arc rod to move downward along the outer wall of the mounting plate. As the arc rod moves downward, it will drive one end of the cleaning rotating rod to move synchronously. In this process, the cleaning rotating rod uses the connection position as a fulcrum, forcing the end of the cleaning rotating rod close to the rotating disk to tilt upward. In this process, the absorbent cotton will adsorb and clean the outer wall of the glass plate to ensure the cleanliness of the mirror surface of the glass plate. Through the application of the above-mentioned components, smaller water droplets remaining on the surface of the glass plate are removed, causing refraction of the line of sight of the recognition lens.

[0011] Preferably, the scratching mechanism also includes a compression spring fixedly connected to the outer wall of the sliding column, a pushing rod is slidably connected to the inner wall of the rainwater collecting plate, the top of the pushing rod is fixedly connected to the bottom of the sliding column, and a cleaning control rod is rotatably connected to the top outer wall of the pushing rod. By utilizing the upward pushing force of the cleaning rotating rod, after the cleaning rotating rod completes the pushing of the pushing rod, the cleaning rotating rod continues to move outward and contacts the inner wall of the compressed oblique rod, and the absorbent cotton is subjected to the thrust of the rotating disk and the resistance of the compressed oblique rod. Under the squeezing of the above two forces, the internal moisture of the absorbent cotton is squeezed out. Through the application of the above components, the water source inside the absorbent cotton is removed, avoiding excessive moisture from affecting the effect of removing water droplets from the glass plate.

[0012] Preferably, the scraping mechanism also includes an L-shaped cleaning rod slidably connected to the top of the rainwater collecting plate, and the end of the cleaning control rod away from the push rod is rotatably connected to the inner wall of the L-shaped cleaning rod. The bottom of the rainwater collecting plate is through-connected to the inner wall of the transmission square tube. Filter screen 2 is fixedly connected to the inner wall of the through hole of the rainwater collecting plate. Utilizing the characteristics of the up and down rotation of the cleaning rotating rod, a push rod is provided inside the device. When the cleaning rotating rod is pressed to rotate upward, the rotating disk is forced to contact the bottom of the push rod. In this process, the cleaning rotating rod moves upward, driving the cleaning control rod to move. In this process, the L-shaped cleaning rod will move laterally along the outer wall of filter screen 2 and scrape the outer wall of filter screen 2, pushing impurities remaining on the top of filter screen 2 to the center of the rainwater collecting plate to avoid blockage of filter screen 2 and affect the water entry speed of the equipment.

[0013] A method for using a door access control device based on face recognition includes the following steps:

[0014] S1: Using the influence of water tension, a rainwater collection plate and a filter are set inside the device. When the device encounters rainy weather, when the external rain splashes and sticks to the surface of the glass plate, water droplets gradually form as the moisture increases;

[0015] S2: The rainwater collection plate collects external rainwater and transmits it from the transmission square pipe to the bottom arc-shaped collection pipe, wherein a small gap is formed between the leakage groove and the mounting plate;

[0016] S3: As the rainwater inside the arc-shaped collection tube falls faster, the internal air pressure is greater than that outside the arc-shaped collection tube. At the leakage groove, due to the difference in pressure inside and outside, an airflow toward the inside of the arc-shaped collection tube will be formed at this location, causing the water droplets stuck to the glass plate to flow into the arc-shaped collection tube under the influence of wind speed.

[0017] The present invention has the following beneficial effects:

[0018] (1) The present invention utilizes the influence of water tension and is provided with a rainwater collecting plate and a filter net inside the device. When the device encounters rainy weather, external rainwater splashes and sticks to the surface of the glass plate. As the water content increases, water droplets gradually form. In this process, the rainwater collecting plate collects external rainwater and transmits it from the transmission square tube to the bottom arc-shaped collection tube. When external rainwater enters the arc-shaped collection tube through the transmission square tube, the falling water flow rate in the arc-shaped collection tube is too fast, and the internal air pressure is greater than that outside the arc-shaped collection tube. Because of the difference in pressure inside and outside the leakage groove, an airflow toward the inside of the arc-shaped collection tube will be formed at this position, so that the water droplets sticking to the glass plate position enter the arc-shaped collection tube under the influence of wind speed, thereby eliminating water accumulation in the lens and avoiding the refraction of rainwater at the lens position, which may cause image errors in the face recognition process of the camera, increase the comparison calculation amount of the recognition unit, and thus prolong the entire face recognition time, thereby improving the face recognition sensitivity of the entire device on rainy days.

[0019] (2) The present invention utilizes the force of the falling water flow in the above-mentioned arc-shaped collection tube, and a T-shaped slide bar is arranged inside the device. When the water flow inside the arc-shaped collection tube acts on the horizontal surface of the T-shaped slide bar, the T-shaped slide bar drives the arc-shaped rod to move downward along the outer wall of the mounting plate. As the arc-shaped rod moves downward, it will drive one end of the cleaning rotating rod to move synchronously. In this process, the cleaning rotating rod uses the connection position as a fulcrum, forcing the end of the cleaning rotating rod close to the rotating disk to tilt upward, and the absorbent cotton will absorb and clean the outer wall of the glass plate, thereby ensuring the cleanliness of the mirror surface of the glass plate, removing smaller water droplets remaining on the surface of the glass plate, and improving the recognition efficiency of the equipment.

[0020] (3) The present invention utilizes the characteristic that the cleaning rotating rod rotates up and down, and a push rod is arranged inside the device. When the cleaning rotating rod is pressed to rotate upward, it will force the rotating disk to contact the bottom of the push rod. In this process, the cleaning rotating rod moves upward, driving the cleaning control rod to move. The L-shaped cleaning rod will move laterally along the outer wall of the filter screen 2 and scratch the outer wall of the filter screen 2, pushing the impurities remaining on the top of the filter screen 2 to the center of the rainwater collection plate, thereby avoiding clogging of the filter screen 2 and affecting the water inlet speed of the equipment.

[0021] (4) The present invention utilizes the upward pushing force of the cleaning rotating rod. After the cleaning rotating rod completes the pushing of the pushing rod, the cleaning rotating rod continues to move outward and contacts the inner wall of the compressed inclined rod. The absorbent cotton is subjected to the thrust of the rotating disk and the resistance of the compressed inclined rod. Under the squeezing of the above two forces, the internal moisture of the absorbent cotton is squeezed to flow outward, thereby removing the water source inside the absorbent cotton and avoiding the effect of excessive moisture on the removal of water droplets from the glass plate. In addition, when the pushing rod moves upward, it will drive the sliding column to move upward. If there are dead leaves on the top of the filter net, the sliding column will push the dead leaves away from the filter net, and utilize the characteristics of external wind. When the dead leaves are away from the filter, the external wind will take away the impurities stuck to the top of the filter, thereby avoiding the blockage of the filter and affecting the actual efficiency of the rainwater collection plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 It is an exploded schematic diagram of the overall structural assembly of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 3 It is an exploded schematic diagram of the detection mechanism assembly of the present invention;

[0026] Figure 4 It is a schematic diagram of the internal components of the detection mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the internal components of the cleaning mechanism of the present invention;

[0028] Figure 6 It is a schematic diagram of the internal components of the scratching mechanism of the present invention;

[0029] Figure 7 For the present invention Figure 6 A is an enlarged schematic diagram;

[0030] Figure 8 It is a schematic diagram of the working process of the present invention.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] In the figure: 1. Detection mechanism; 101. Fixed plate; 102. Mounting plate; 103. Transmission square tube; 104. Identification lens; 105. Glass plate; 106. Arc-shaped collecting tube; 107. Support rod; 108. Rain shield; 109. Protective shell; 110. Leakage trough; 2. Cleaning mechanism; 201. Collecting pipe; 202. Diverter plate; 203. Outlet pipe; 204. T-shaped sliding rod; 205. Arc-shaped rod; 207. Cleaning rotating rod; 208. Rotating disk; 209. Absorbent cotton; 210. Telescopic column; 211. Compressed oblique rod; 3. Scratching mechanism; 301. Rainwater collecting plate; 302. Filter one; 303. Sliding column; 304. Compressed spring; 305. Push rod; 306. Cleaning control rod; 307. L-shaped cleaning rod; 308. Filter two. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] For example, see Figure 1 - Figure 3 The present invention is a door access control device based on face recognition, comprising a detection mechanism 1, the detection mechanism 1 also comprises a fixing plate 101, a mounting plate 102 is fixedly connected to the side wall of the fixing plate 101, a transmission square tube 103 is fixedly connected to both ends of the mounting plate 102, and an arc-shaped collection tube 106 is connected through the bottom of the transmission square tube 103;

[0035] The cleaning mechanism 2 includes a water collecting pipe 201 connected to the bottom of the arc-shaped collecting pipe 106, a diverter plate 202 is fixedly connected to the inner wall of the water collecting pipe 201, and a water outlet pipe 203 is connected to the side wall of the water collecting pipe 201;

[0036] The scratching mechanism 3 includes a rainwater collecting plate 301 fixedly connected to the top of the fixing plate 101, a filter screen 302 is fixedly connected to the top of the rainwater collecting plate 301, and a sliding column 303 is slidably connected to the inner wall of the through hole of the filter screen 302.

[0037] The detection mechanism 1 further includes an identification lens 104 fixedly connected to the inner wall of the mounting plate 102 , a glass plate 105 fixedly connected to the side wall of the mounting plate 102 , and a support rod 107 fixedly connected to the bottom of the fixing plate 101 .

[0038] The detection mechanism 1 also includes a rain shield 108 fixedly connected to the side wall of the rainwater collecting plate 301, a water leakage groove 110 is opened on the side wall of the arc-shaped collecting tube 106, and a protective shell 109 is fixedly connected to the side wall of the transmission square tube 103. By utilizing the influence of water tension, a rainwater collecting plate 301 and a filter 302 are arranged inside the device. When the device encounters rainy weather, when external rainwater splashes and sticks to the surface of the glass plate 105, as the water content increases, water droplets are gradually formed. In this process, the rainwater collecting plate 301 collects external rainwater and transmits it from the transmission square tube 103 to the bottom arc-shaped collecting tube 106, wherein a small gap is formed between the water leakage groove 110 and the mounting plate 102. When External rainwater enters the arc-shaped collecting tube 106 through the transmission square tube 103. Since the water flow rate in the arc-shaped collecting tube 106 is too fast, the internal air pressure is greater than that outside the arc-shaped collecting tube 106. Since the pressure inside and outside are different at the leakage groove 110, an airflow toward the inside of the arc-shaped collecting tube 106 will be formed at this position, so that the water droplets stuck to the glass plate 105 will flow into the arc-shaped collecting tube 106 due to the wind speed, thereby eliminating the water accumulation in the lens and avoiding the refraction of rainwater at the lens position, which may cause image errors in the process of face recognition by the camera, increase the comparison calculation amount of the recognition unit, and thus prolong the time of the entire face recognition, thereby improving the face recognition sensitivity of the entire device on rainy days.

[0039] For example 2, please refer to Figure 4 - Figure 8 The present invention is a door access control device based on face recognition. On the basis of embodiment 1, the cleaning mechanism 2 also includes a T-shaped slide bar 204 slidably connected to the inner wall of the arc-shaped collection tube 106, and the side wall of the T-shaped slide bar 204 is fixedly connected to the arc-shaped rod 205. The inner wall of the fixed plate 101 is rotatably connected to a cleaning rotating rod 207, and the side wall of the cleaning rotating rod 207 is rotatably connected to the outer wall of the arc-shaped rod 205. When the push rod 305 moves upward, it will drive the sliding column 303 to move upward. If there are dead leaves on the top of the filter net 302, the sliding column 303 will push the dead leaves away from the filter net 302, and use the characteristics of external wind. When the dead leaves are away from the filter net 302, the external wind flow will take away the impurities stuck to the top of the filter net 302, thereby avoiding clogging of the filter net 302 and affecting the actual efficiency of the rainwater collection plate 301.

[0040] The cleaning mechanism 2 also includes a rotating disk 208 rotatably connected to the end of the cleaning rotating rod 207 away from the arc rod 205, and a water-absorbing cotton 209 is fixedly connected to the inner wall of the rotating disk 208. A telescopic column 210 is fixedly connected to the top of the arc rod 205, and the end of the telescopic column 210 away from the arc rod 205 is fixedly connected to the bottom of the rainwater collecting plate 301. A compressed inclined rod 211 is fixedly connected to the side wall of the mounting plate 102. By utilizing the force of the falling water flow of the above-mentioned arc collection pipe 106, a T-shaped slide bar 204 is arranged inside the device, and the water flow inside the arc collection pipe 106 acts on the horizontal direction of the T-shaped slide bar 204. When cleaning the glass plate 105, the T-shaped sliding bar 204 drives the arc rod 205 to move downward along the outer wall of the mounting plate 102. As the arc rod 205 moves downward, one end of the cleaning rotating rod 207 will be driven to move synchronously. During this process, the cleaning rotating rod 207 uses the connection position as a fulcrum, forcing the end of the cleaning rotating rod 207 close to the rotating disk 208 to tilt upward. During this process, the absorbent cotton 209 will absorb and clean the outer wall of the glass plate 105 to ensure the cleanliness of the mirror surface of the glass plate 105. Through the application of the above components, smaller water droplets remaining on the surface of the glass plate 105 are removed, causing the refraction of the line of sight of the recognition lens 104.

[0041] The scratching mechanism 3 also includes a compression spring 304 fixedly connected to the outer wall of the sliding column 303, a pushing rod 305 is slidably connected to the inner wall of the rainwater collecting plate 301, the top of the pushing rod 305 is fixedly connected to the bottom of the sliding column 303, and a cleaning control rod 306 is rotatably connected to the outer wall of the top of the pushing rod 305. By utilizing the upward pushing force of the cleaning rotating rod 207, after the cleaning rotating rod 207 completes the pushing of the pushing rod 305, the cleaning rotating rod 207 continues to move outward and contacts the inner wall of the compressed inclined rod 211, and the absorbent cotton 209 is subjected to the thrust of the rotating disk 208 and the resistance of the compressed inclined rod 211. Under the squeezing of the above two forces, the internal moisture of the absorbent cotton 209 is squeezed out. Through the application of the above components, the water source inside the absorbent cotton 209 is removed, and the effect of removing water droplets from the glass plate 105 is prevented from being affected by excessive moisture.

[0042] The scraping mechanism 3 also includes an L-shaped cleaning rod 307 slidably connected to the top of the rainwater collecting plate 301, and one end of the cleaning control rod 306 away from the pushing rod 305 is rotatably connected to the inner wall of the L-shaped cleaning rod 307. The bottom of the rainwater collecting plate 301 is connected to the inner wall of the transmission square tube 103 through-through, and a filter screen 308 is fixedly connected to the inner wall of the through hole of the rainwater collecting plate 301. The pushing rod 305 is arranged inside the device by utilizing the characteristic that the cleaning rotating rod 207 rotates up and down. When the cleaning rotating rod 207 rotates, the cleaning rotating rod 207 rotates up and down. When it rotates upward under pressure, the rotating disk 208 will be forced to contact the bottom of the push rod 305. During this process, the cleaning rotating rod 207 moves upward, driving the cleaning control rod 306 to move. During this process, the L-shaped cleaning rod 307 will move laterally along the outer wall of the filter screen 308 and scratch the outer wall of the filter screen 308, pushing the impurities remaining on the top of the filter screen 308 to the center of the rainwater collecting plate 301, avoiding clogging of the filter screen 308 and affecting the water entry speed of the equipment.

[0043] The method for using the access control device includes the following steps:

[0044] S1: Using the influence of water tension, a rainwater collecting plate 301 and a filter 302 are arranged inside the device. When the device encounters rainy weather, when the external rainwater splashes and sticks to the surface of the glass plate 105, water droplets are gradually formed as the water content increases;

[0045] S2: The rainwater collecting plate 301 collects external rainwater and transmits it from the transmission square tube 103 to the bottom arc-shaped collecting tube 106, wherein a small gap is formed between the leakage groove 110 and the mounting plate 102;

[0046] S3: Since the rainwater inside the arc collecting tube 106 falls at a faster speed, the internal air pressure is greater than that outside the arc collecting tube 106. Since the pressure inside and outside the leak groove 110 is different, an airflow toward the inside of the arc collecting tube 106 will be formed at this position, so that the water droplets stuck to the glass plate 105 will enter the interior of the arc collecting tube 106 due to the flow of wind speed.

[0047] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A door access control device based on face recognition, comprising a detection mechanism (1), the detection mechanism (1) further comprising a fixing plate (101), a mounting plate (102) fixedly connected to the side wall of the fixing plate (101), a transmission square tube (103) fixedly connected to both ends of the mounting plate (102), and an arc-shaped collection tube (106) penetratingly connected to the bottom of the transmission square tube (103), characterized in that: Also includes: A cleaning mechanism (2), the cleaning mechanism (2) comprising a water collecting pipe (201) connected through the bottom of the arc-shaped collecting pipe (106), a flow dividing plate (202) being fixedly connected to the inner wall of the water collecting pipe (201), and a water outlet pipe (203) being connected through the side wall of the water collecting pipe (201); A scraping mechanism (3), the scraping mechanism (3) comprising a rainwater collecting plate (301) fixedly connected to the top of the fixing plate (101), a filter screen 1 (302) fixedly connected to the top of the rainwater collecting plate (301), a sliding column (303) slidably connected to the inner wall of the through hole of the filter screen 1 (302); The cleaning mechanism (2) further comprises a T-shaped sliding rod (204) slidably connected to the inner wall of the arc-shaped collecting tube (106), the side wall of the T-shaped sliding rod (204) being fixedly connected to an arc-shaped rod (205), the inner wall of the fixed plate (101) being rotatably connected to a cleaning rotating rod (207), the side wall of the cleaning rotating rod (207) being rotatably connected to the outer wall of the arc-shaped rod (205); The cleaning mechanism (2) further comprises a rotating disk (208) rotatably connected to an end of the cleaning rotating rod (207) away from the arc rod (205); a water-absorbing cotton (209) is fixedly connected to the inner wall of the rotating disk (208); a telescopic column (210) is fixedly connected to the top of the arc rod (205); an end of the telescopic column (210) away from the arc rod (205) is fixedly connected to the bottom of the rainwater collection plate (301); and a pressure-bearing inclined rod (211) is fixedly connected to the side wall of the mounting plate (102); The scraping mechanism (3) further comprises a compression spring (304) fixedly connected to the outer wall of the sliding column (303); a push rod (305) is slidably connected to the inner wall of the rainwater collecting plate (301); the top of the push rod (305) is fixedly connected to the bottom of the sliding column (303); and a cleaning control rod (306) is rotatably connected to the outer wall of the top of the push rod (305); The scraping mechanism (3) further comprises an L-shaped cleaning rod (307) slidably connected to the top of the rainwater collecting plate (301); one end of the cleaning control rod (306) away from the pushing rod (305) is rotatably connected to the inner wall of the L-shaped cleaning rod (307); the bottom of the rainwater collecting plate (301) is through-connected to the inner wall of the transmission square tube (103); and a second filter screen (308) is fixedly connected to the inner wall of the through hole of the rainwater collecting plate (301); By utilizing the upward pushing force of the cleaning rotating rod (207), after the cleaning rotating rod (207) completes the pushing of the pushing rod (305), the cleaning rotating rod (207) continues to move outward and contacts the inner wall of the compressed inclined rod (211), while the water-absorbing cotton (209) is pushed by the pushing force of the rotating disk (208) and the resistance of the compressed inclined rod (211). Under the squeezing of the above two forces, the water inside the water-absorbing cotton (209) is squeezed outward, thereby achieving the removal of the water source inside the water-absorbing cotton (209) and preventing the excessive water from affecting the glass. In addition, when the push rod (305) moves upward, it will drive the sliding column (303) to move upward. If there are dead leaves on the top of the filter net (302), the sliding column (303) will push the dead leaves away from the filter net (302). By taking advantage of the external wind, when the dead leaves are away from the filter net (302), the external wind flow will take away the impurities stuck on the top of the filter net (302), thereby avoiding the filter net (302) from being blocked and affecting the actual efficiency of the rainwater collection plate (301).

2. The access control device based on face recognition according to claim 1, characterized in that: The detection mechanism (1) further comprises an identification lens (104) fixedly connected to the inner wall of the mounting plate (102), a glass plate (105) fixedly connected to the side wall of the mounting plate (102), and a support rod (107) fixedly connected to the bottom of the fixing plate (101).

3. The access control device based on face recognition according to claim 2, characterized in that: The detection mechanism (1) further comprises a rain shield (108) fixedly connected to the side wall of the rainwater collection plate (301), a water leakage groove (110) is provided on the side wall of the arc-shaped collection pipe (106), and a protective shell (109) is fixedly connected to the side wall of the transmission square pipe (103).

4. A method for using a door access control device based on face recognition, using the door access control device based on face recognition as claimed in claim 3, characterized in that: The following steps are included: S1: utilizing the influence of water tension, a rainwater collection plate (301) and a filter screen (302) are arranged inside the device. When the device encounters rainy weather, when external rainwater splashes and adheres to the surface of the glass plate (105), water droplets are gradually formed as the amount of water increases; S2: The rainwater collection plate (301) collects external rainwater and transmits it from the transmission square tube (103) to the bottom arc-shaped collection tube (106), wherein a small gap is formed between the leakage groove (110) and the installation plate (102); S3: Since the speed at which rainwater falls inside the arc-shaped collecting tube (106) is relatively fast, the air pressure inside is greater than that outside the arc-shaped collecting tube (106). Since the pressure difference between the inside and outside of the water leakage groove (110) is different, an airflow toward the inside of the arc-shaped collecting tube (106) is formed at this position, so that water droplets adhering to the position of the glass plate (105) are flowed into the interior of the arc-shaped collecting tube (106) by the wind speed.

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