CN110517612A - A kind of crossing recognition of face voice broadcast display screen - Google Patents

A kind of crossing recognition of face voice broadcast display screen Download PDF

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Publication number
CN110517612A
CN110517612A CN201910612064.XA CN201910612064A CN110517612A CN 110517612 A CN110517612 A CN 110517612A CN 201910612064 A CN201910612064 A CN 201910612064A CN 110517612 A CN110517612 A CN 110517612A
Authority
CN
China
Prior art keywords
fixedly connected
hollow box
display screen
voice broadcast
inner cavity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910612064.XA
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Chinese (zh)
Inventor
李大江
张承竹
米振东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Longfa Intelligent Technology Co Ltd
Original Assignee
Hefei Longfa Intelligent Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hefei Longfa Intelligent Technology Co Ltd filed Critical Hefei Longfa Intelligent Technology Co Ltd
Priority to CN201910612064.XA priority Critical patent/CN110517612A/en
Publication of CN110517612A publication Critical patent/CN110517612A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/16Human faces, e.g. facial parts, sketches or expressions
    • G06V40/161Detection; Localisation; Normalisation
    • G06V40/166Detection; Localisation; Normalisation using acquisition arrangements
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/16Human faces, e.g. facial parts, sketches or expressions
    • G06V40/172Classification, e.g. identification
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F27/00Combined visual and audible advertising or displaying, e.g. for public address
    • G09F27/007Displays with power supply provided by solar cells or photocells

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The present invention discloses a kind of crossing recognition of face voice broadcast display screen, including hollow box, the positive left side of hollow box is fixedly connected with electronic console, the positive right side of hollow box is fixedly connected with operation panel, center at the top of hollow box is fixedly connected with camera, the center bottom at hollow box back is fixedly connected with speaker, and the middorsal left and right sides of hollow box is fixedly connected to fixed bin.The present invention is by the second miniature motor and rotates the structure design between screwed ring, it can allow the second miniature motor that spiral rotating column is driven to be rotated, pass through the positional relationship and structure design between screw thread disk and screwed ring again, it can allow screw thread rotation column that bolt is driven to be rotated, to the angle on may be rotated support rod so as to adjust solar panel at the top of the hollow box, the rainwater blown from different directions can be blocked, the crossing recognition of face voice broadcast display screen is made to can achieve the purpose for preventing rainwater from entering in display screen inner cavity.

Description

A kind of crossing recognition of face voice broadcast display screen
Technical field
The present invention relates to crossing recognition of face voice broadcast display screen technology fields, and in particular to a kind of crossing recognition of face Voice broadcast display screen.
Background technique
Face recognition technology, which refers to, identifies face using the computer technology that analysis is compared.Recognition of face is one popular Computer technology research field is detected, adjust automatically image zoom including face tracking, night infrared detecting, automatic to adjust The technologies such as whole exposure intensity.
Existing crossing recognition of face voice broadcast display screen is carrying out in use, since the display screen is all mounted in dew It road street mouthful or road street mouth, rainwater can be dropped in the camera or display screen of display screen when encountering the rainy day On, to make camera will appear various smudgy situations when detecting passerby, while rainwater can also penetrate into display screen Inner cavity in make the electronic component in display screen inner cavity will appear short circuit and power-off the case where.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of crossing recognition of face voice broadcast display screen.
The crossing recognition of face voice broadcast display screen, including hollow box, the positive left side of hollow box are fixedly connected with electricity Sub-display, the positive right side of hollow box are fixedly connected with operation panel, and the center at the top of hollow box is fixedly connected with camera, empty The center bottom at heart box back is fixedly connected with speaker, and the middorsal left and right sides of hollow box is fixedly connected to fixed bin, The inner cavity of fixed bin is rotatably connected to rotary shaft, and fixing sleeve is connected to rotating bar on the shaft of rotary shaft, and the top of rotating bar is fixed It is connected with electric telescopic rod, electric telescopic rod is fixedly connected with fixed block close to the side of camera, and fixed block is stretched far from electronic The side of contracting bar is rotatably connected to connecting plate, and connecting plate is fixedly connected with solar panel at the top of camera, hollow The first miniature motor is fixedly connected at left and right sides of box back, hollow box is fixedly connected to second at left and right sides of back Miniature motor, the second miniature motor fixing sleeve on the transmission shaft of speaker side are connected to swingle, rotate the top of club body It is plugged with bolt, is rotated with lock bolt and is socketed with support rod, the middorsal bottom of hollow box is fixedly connected with fixed plate, The bottom of fixed plate is fixedly connected with connecting rod, and the bottom fixing sleeve for connecting club body is connected to bearing, and the outer ring of bearing is fixed to be inserted It is connected to fixed link, the inner cavity of fixed link is equipped with air-temperature sensor, and the bottom of fixed link is fixedly connected with cored slab, Method Pre-stress Concrete Hollow Slab body Inner cavity be fixedly connected with controller.
A kind of crossing recognition of face voice broadcast display screen of the invention, wherein the first miniature motor is far from swingle side Transmission shaft extend in the inner cavity of fixed bin, the first miniature motor is fixed on the transmission shaft far from swingle side with rotary shaft Connection.
A kind of crossing recognition of face voice broadcast display screen of the invention, wherein the left and right sides at the top of fixed plate back is divided Threaded hole is not offered, and the thread in inner cavity of threaded hole is connected with threaded rod, and the bottom of the screw thread club body is plugged in hollow box In inner cavity.
A kind of crossing recognition of face voice broadcast display screen of the invention, wherein the second miniature motor is located at swingle inner cavity The output shaft fixing sleeve of side is connected to rotation screwed ring, and the left and right sides of rotation club body intracavity bottom is rotatably connected to spiral Column spinner, the left and right sides of swingle inner cavity top are rotatably connected to screw thread disk.
A kind of crossing recognition of face voice broadcast display screen of the invention, wherein the shape at swingle front top is " U " Shape, bolt, which is located on the shaft of swingle inner cavity, to be fixedly attached there are two screwed ring, screwed ring be located at the top of screw thread disk and with It is intermeshed between screw thread disk.
A kind of crossing recognition of face voice broadcast display screen of the invention, wherein spiral rotating column is located at screw thread pan bottom It intermeshes between toothed disc and screw thread disk at the top of the left and right sides and spiral rotating mast body, spiral rotating mast body bottom It is intermeshed between toothed disc and rotation screwed ring.
A kind of crossing recognition of face voice broadcast display screen of the invention, is wherein electrically connected between air-temperature sensor and controller It connects, is electrically connected between controller and the first miniature motor and the second miniature motor, is electrically connected between controller and electric telescopic rod It connects.
A kind of crossing recognition of face voice broadcast display screen of the invention, wherein offers in the box body of fixed bin and facilitates electricity The opening that dynamic telescopic rod is rotated, fixed bin and the first miniature motor and the second miniature motor are located at same level.
A kind of crossing recognition of face voice broadcast display screen of the invention, wherein the shape of solar panel side is half Arc, is equipped with waterproof plastic cement at the top of solar panel, and the inner cavity of connecting rod is fixedly connected with battery, battery with too It is positive to be electrically connected between solar panel.
Compared with prior art, beneficial effects of the present invention are as follows:
1, the present invention can allow rotating bar solid by the structure design between fixed link and bearing and rotating bar It is rotated in fixed pole, so that staff be facilitated to be adjusted, then passes through the structure design between fixed block and fixed plate, energy Enough facilitate staff to carry out installation and removal, then the dress can be made by the structure design between controller and air-temperature sensor Setting can be operated automatically according to the variation of weather, then pass through the knot between the first miniature motor and rotary shaft and fixed bin Structure design, can be such that rotary shaft is rotated in fixed bin, can be hollow so as to adjust solar panel Position on box, then by the structure design between fixed block and connecting plate, solar panel can be allow in hollow box On rotated, then by the design of structure between solar panel and battery, can allow solar panel will Luminous energy is converted into power storage to battery, so that solar panel be allow to be moved to the top of camera and hollow box Portion prevents rainwater from beating in camera and hollow box so that camera and hollow box be blocked.
2, the present invention by the second miniature motor and rotates the structure design between screwed ring, can make the second miniature motor Spiral rotating column can be driven to be rotated, then by the positional relationship and structure design between screw thread disk and screwed ring, it can Allow screw thread rotation column that bolt to be driven to be rotated, so that support rod be made to may be rotated so as to adjust solar panel Angle at the top of the hollow box can block the rainwater blown from different directions, then be designed by the structure of electric telescopic rod, The height between solar panel and hollow box can be adjusted, thus allow solar panel according to different temperature and Environment makes different judgements, thus position and height and angle of the adjust automatically solar panel at the top of hollow box, To prevent rainwater to be flowed into the inner cavity of hollow box and camera, reach the crossing recognition of face voice broadcast display screen To preventing rainwater from entering the purpose in display screen inner cavity.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is positive overall structure diagram;
Fig. 2 is hollow box back structures schematic diagram;
Fig. 3 is hollow box side structure schematic diagram;
Fig. 4 is swingle front cross-sectional structural schematic diagram;
Fig. 5 is fixed link and connecting rod front cross-sectional structural schematic diagram.
In figure: 1, hollow box;2, camera;3, operation panel;4, connecting rod;5, fixed link;6, cored slab;7, speaker;8, Threaded hole;9, fixed plate;10, the first miniature motor;11, rotating bar;12, fixed bin;13, swingle;14, connecting plate;15, too Positive energy solar panel;16, support rod;17, bolt;18, fixed block;19, electric telescopic rod;20, rotary shaft;21, controller;22, Bearing;23, electronic console;24, the second miniature motor;25, spiral rotating column;26, screw thread disk;27, screwed ring;28, it rotates Screwed ring;29, air-temperature sensor;30, battery.
Specific embodiment
Multiple embodiments of the invention will be disclosed with schema below, as clearly stated, the details in many practices It will be explained in the following description.It should be appreciated, however, that the details in these practices is not applied to limit the present invention.Also It is to say, in some embodiments of the invention, the details in these practices is non-essential.In addition, for the sake of simplifying schema, Some known usual structures and component will be painted it in the drawings in simply illustrative mode.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, not especially censure The meaning of order or cis-position, also non-to limit the present invention, the component described just for the sake of difference with same technique term Or operation, it is not understood to indicate or imply its relative importance or implicitly indicates the number of indicated technical characteristic Amount." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one of the features.In addition, each Technical solution between a embodiment can be combined with each other, but must can be implemented as base with those of ordinary skill in the art Plinth will be understood that the combination of this technical solution is not present when conflicting or cannot achieve when occurs in the combination of technical solution, Also not the present invention claims protection scope within.
As shown in Figs. 1-5, a kind of crossing recognition of face voice broadcast display screen, including hollow box 1, hollow box 1 are positive Left side is fixedly connected with electronic console 23, and the positive right side of hollow box 1 is fixedly connected with operation panel 3, in 1 top of hollow box Centre is fixedly connected with camera 2, and the center bottom at 1 back of hollow box is fixedly connected with speaker 7, the middorsal left side of hollow box 1 Right two sides are fixedly connected to fixed bin 12, and the inner cavity of fixed bin 12 is rotatably connected to rotary shaft 20, on the shaft of rotary shaft 20 Fixing sleeve is connected to rotating bar 11, and the top of rotating bar 11 is fixedly connected with electric telescopic rod 19, and electric telescopic rod 19 is close to camera shooting First 2 side is fixedly connected with fixed block 18, and fixed block 18 is rotatably connected to connecting plate 14 far from the side of electric telescopic rod 19, Connecting plate 14 is fixedly connected with solar panel 15 close to the top of camera 2, and the left and right sides at 1 back of hollow box is fixed It is connected with the first miniature motor 10, the second miniature motor 24 is fixedly connected at left and right sides of 1 back of hollow box, second is small-sized The fixing sleeve on the transmission shaft of 7 side of speaker of motor 24 is connected to swingle 13, is plugged with bolt at the top of 13 shaft of swingle 17, the pin of bolt 17 rotates with it is socketed with support rod 16, and the middorsal bottom of hollow box 1 is fixedly connected with fixed plate 9, Gu The bottom of fixed board 9 is fixedly connected with connecting rod 4, and the bottom fixing sleeve of 4 shaft of connecting rod is connected to bearing 22, and the outer ring of bearing 22 is solid Surely it is plugged with fixed link 5, the inner cavity of fixed link 5 is equipped with air-temperature sensor 29, and the bottom of fixed link 5 is fixedly connected with cored slab 6, The inner cavity of 6 plate body of cored slab is fixedly connected with controller 21.
First miniature motor 10 extends in the inner cavity of fixed bin 12 far from the transmission shaft of 13 side of swingle,
It is fixedly connected on first transmission shaft of the miniature motor 10 far from 13 side of swingle with rotary shaft 20, the design is beneficial Rotary shaft 20 can be driven to be rotated in swingle 13.
The left and right sides at the top of 9 back of fixed plate offers threaded hole 8 respectively, and the thread in inner cavity of threaded hole 8 is connected with spiral shell Rasp bar, the bottom of the screw thread club body are plugged in the inner cavity of hollow box 1, which is beneficial to facilitate staff by fixed plate 9 link together with hollow box 1.
The output shaft fixing sleeve that second miniature motor 24 is located at 13 inner cavity side of swingle is connected to rotation screwed ring 28, rotation The left and right sides of 13 shaft intracavity bottom of bar is rotatably connected to spiral rotating column 25, the left and right sides of 13 inner cavity top of swingle It is rotatably connected to screw thread disk 26, which, which is beneficial to the second miniature motor 24, can drive screw thread disk 26 to be rotated.
The shape at 13 front top of swingle is " u "-shaped, and bolt 17, which is located on the shaft of 13 inner cavity of swingle, to be fixedly attached There are two screwed ring 27, screwed ring 27 is located at the top of screw thread disk 26 and is intermeshed between screw thread disk 26, and the design is beneficial Screw thread disk 26 can be driven to be rotated in screwed ring 27.
Spiral rotating column 25 is located at the toothed disc at the top of the left and right sides of 26 bottom of screw thread disk and 25 shaft of spiral rotating column It intermeshes between screw thread disk 26, is mutually nibbled between the toothed disc and rotation screwed ring 28 of 25 shaft bottom of spiral rotating column It closes, which, which is beneficial to rotation screwed ring 28, can drive spiral rotating column 25 to be rotated and rotate screwed ring 28 and can drive Screw thread disk 26 is rotated.
It is electrically connected between air-temperature sensor 29 and controller 21, controller 21 and the first miniature motor 10 and second are small-sized It is electrically connected between motor 24, is electrically connected between controller 21 and electric telescopic rod 19, which is beneficial to controller 21 and temperature Sensor 29 can control the first miniature motor 10 and the second miniature motor 24 and electric telescopic rod 19.
Offer the opening for facilitating electric telescopic rod 19 to be rotated in the box body of fixed bin 12, fixed bin 12 and first small Type motor 10 and the second miniature motor 24 are located at same level, which, which is beneficial to rotating bar 11 and swingle 13, to locate In same level.
The shape of 15 side of solar panel is half arc, and the top of solar panel 15 is equipped with waterproof plastic cement, The inner cavity of connecting rod 4 is fixedly connected with battery 30, is electrically connected between battery 30 and solar panel 15, and the design is beneficial In the rainwater on solar panel 15 can be prevented not to be deposited on solar panel.
In using the present invention, when air-temperature sensor 29 detects the weather of rainy day or high temperature solarization, temperature sensing Device 29 can issue instruction to controller 21 makes controller 21 control the first miniature motor 10 and the start-up operation of electric telescopic rod 19, To make the first miniature motor 10 that rotating bar 11 be driven to be rotated, it is moved to the shaft of rotating bar 11 in fixed bin 12, and And it is in same level with hollow box 1, while electric telescopic rod 19 can be moved up and down according to the case where weather, work as chance It can be moved down when to heavy rain weather, make solar panel 15 more close to hollow box 1, so that good protect camera 2 Come, compares fair weather Shi Zehui when encountering and make solar panel 15 far from hollow box 1, enable solar panel 15 more Stick on nearly sunlight, thus absorption luminous energy effectively, while air-temperature sensor 29 can judge beating for rainwater according to wind direction The direction fallen, when the rotation of the second miniature motor 24, will drive rotation screw thread so that the second miniature motor 24 of control is started to work Ring 28 carries out rotation and swingle 13, to allow rotation screwed ring 28 that spiral rotating column 25 to be driven to be rotated, makes spiral Column spinner 25 drives screw thread disk 26 to be rotated, and makes to rotate bolt 17 can also, so as to adjust support rod Angle between 16 and swingle 13, so as to adjust angle of the solar panel 15 on 1 top of hollow box, so as to support The rainwater from different angle is kept off, to play the purpose for preventing rainwater from drenching camera 2 Yu hollow box 1.
Mode the above is only the implementation of the present invention is not intended to restrict the invention.For those skilled in the art For member, the invention may be variously modified and varied.All any modifications made in spirit and principles of the present invention, etc. With replacement, improvement etc., should all be included within scope of the presently claimed invention.

Claims (9)

1. a kind of crossing recognition of face voice broadcast display screen, including hollow box, the positive left side of hollow box are fixedly connected with electricity Sub-display, the positive right side of hollow box are fixedly connected with operation panel, and the center at the top of hollow box is fixedly connected with camera, Be characterized in that: the center bottom at the hollow box back is fixedly connected with speaker, the middorsal left and right sides of hollow box It is fixedly connected to fixed bin, the inner cavity of the fixed bin is rotatably connected to rotary shaft, fixing sleeve on the shaft of the rotary shaft Be connected to rotating bar, be fixedly connected with electric telescopic rod at the top of the rotating bar, the electric telescopic rod close to camera one Side is fixedly connected with fixed block, and the fixed block is rotatably connected to connecting plate, the connecting plate far from the side of electric telescopic rod Solar panel is fixedly connected at the top of the camera, the is fixedly connected at left and right sides of the hollow box back One miniature motor is fixedly connected to the second miniature motor, second miniature motor at left and right sides of the hollow box back Fixing sleeve is connected to swingle on the transmission shaft of speaker side, and bolt is plugged at the top of the rotation club body, described to insert It is rotated with the pin of pin and is socketed with support rod, the middorsal bottom of hollow box is fixedly connected with fixed plate, the fixation The bottom of plate is fixedly connected with connecting rod, and the bottom fixing sleeve of the connection club body is connected to bearing, and the outer ring of the bearing is solid Surely it is plugged with fixed link, the inner cavity of the fixed link is equipped with air-temperature sensor, and the bottom of the fixed link is fixedly connected with hollow The inner cavity of plate, the Method Pre-stress Concrete Hollow Slab body is fixedly connected with controller.
2. a kind of crossing recognition of face voice broadcast display screen according to claim 1, it is characterised in that: described first is small Type motor extends in the inner cavity of fixed bin far from the transmission shaft of swingle side, and first miniature motor is far from swingle one It is fixedly connected on the transmission shaft of side with rotary shaft.
3. a kind of crossing recognition of face voice broadcast display screen according to claim 1, it is characterised in that: the fixed plate The left and right sides at the top of back offers threaded hole respectively, and the thread in inner cavity of the threaded hole is connected with threaded rod, the threaded rod The bottom of shaft is plugged in the inner cavity of hollow box.
4. a kind of crossing recognition of face voice broadcast display screen according to claim 1, it is characterised in that: described second is small The output shaft fixing sleeve that type motor is located at swingle inner cavity side is connected to rotation screwed ring, the rotation club body intracavity bottom The left and right sides is rotatably connected to spiral rotating column, and the left and right sides of the swingle inner cavity top is rotatably connected to screw thread Disk.
5. a kind of crossing recognition of face voice broadcast display screen according to claim 4, it is characterised in that: the swingle The shape at positive top is " u "-shaped, the bolt be located on the shaft of swingle inner cavity be fixedly attached there are two screwed ring, it is described Screwed ring is located at the top of screw thread disk and is intermeshed between screw thread disk.
6. a kind of crossing recognition of face voice broadcast display screen according to claim 4, it is characterised in that: the spiral rotation Rotary column, which is located between the toothed disc and screw thread disk at the top of the left and right sides of screw thread pan bottom and spiral rotating mast body, to intermesh, It is intermeshed between the toothed disc and rotation screwed ring of the spiral rotating mast body bottom.
7. a kind of crossing recognition of face voice broadcast display screen according to claim 1, it is characterised in that: the temperature passes It is electrically connected between sensor and controller, is electrically connected between the controller and the first miniature motor and the second miniature motor, institute It states and is electrically connected between controller and electric telescopic rod.
8. a kind of crossing recognition of face voice broadcast display screen according to claim 1, it is characterised in that: the fixed bin Box body on offer the opening for facilitating electric telescopic rod to be rotated, the fixed bin and the first miniature motor and second are small Type motor is located at same level.
9. a kind of crossing recognition of face voice broadcast display screen according to claim 1, it is characterised in that: the solar energy The shape of solar panel side is half arc, is equipped with waterproof plastic cement at the top of the solar panel, the connecting rod it is interior Chamber is fixedly connected with battery, is electrically connected between the battery and solar panel.
CN201910612064.XA 2019-07-08 2019-07-08 A kind of crossing recognition of face voice broadcast display screen Pending CN110517612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910612064.XA CN110517612A (en) 2019-07-08 2019-07-08 A kind of crossing recognition of face voice broadcast display screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910612064.XA CN110517612A (en) 2019-07-08 2019-07-08 A kind of crossing recognition of face voice broadcast display screen

Publications (1)

Publication Number Publication Date
CN110517612A true CN110517612A (en) 2019-11-29

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Application Number Title Priority Date Filing Date
CN201910612064.XA Pending CN110517612A (en) 2019-07-08 2019-07-08 A kind of crossing recognition of face voice broadcast display screen

Country Status (1)

Country Link
CN (1) CN110517612A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111261069A (en) * 2020-01-17 2020-06-09 深圳大圆影业有限公司 Multifunctional advertisement media device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111261069A (en) * 2020-01-17 2020-06-09 深圳大圆影业有限公司 Multifunctional advertisement media device

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Application publication date: 20191129