CN105357413A - File scanning equipment having voice broadcasting function - Google Patents

File scanning equipment having voice broadcasting function Download PDF

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Publication number
CN105357413A
CN105357413A CN201510734926.8A CN201510734926A CN105357413A CN 105357413 A CN105357413 A CN 105357413A CN 201510734926 A CN201510734926 A CN 201510734926A CN 105357413 A CN105357413 A CN 105357413A
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CN
China
Prior art keywords
main body
voice broadcast
file
motor
module
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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.)
Granted
Application number
CN201510734926.8A
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Chinese (zh)
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CN105357413B (en
Inventor
吴放
姚广
沈颖颖
缪桢敏
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China Tobacco Zhejiang Industrial Co Ltd
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China Tobacco Zhejiang Industrial Co Ltd
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Priority to CN201510734926.8A priority Critical patent/CN105357413B/en
Publication of CN105357413A publication Critical patent/CN105357413A/en
Application granted granted Critical
Publication of CN105357413B publication Critical patent/CN105357413B/en
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L13/00Speech synthesis; Text to speech systems
    • G10L13/02Methods for producing synthetic speech; Speech synthesisers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/44Secrecy systems
    • H04N1/4406Restricting access, e.g. according to user identity
    • H04N1/442Restricting access, e.g. according to user identity using a biometric data reading device

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Studio Devices (AREA)

Abstract

The invention discloses file scanning equipment having a voice broadcasting function. The file scanning equipment comprises a cover body and a main body; one sides of the cover body and the main body are connected through a hinge; the other sides of the cover body and the main body are movably connected through a locking device; a photographing module is arranged in the main body; the photographing module comprises a scanning camera, a storage and a photographing processor; the mobile device is arranged on the main body; the mobile device comprises a U-shaped sliding rail; a fixed block and a first motor are respectively arranged at two sides of the U-shaped sliding rail; a ball screw is arranged between the fixed block and the first motor; a sliding block in threaded connection with the ball screw is arranged on the ball screw; a bracket is arranged on the sliding block; a second motor is arranged at one side of the bracket; the rotating shaft of the second motor is connected with a connection shaft; and the scanning camera is installed on the connection shaft. According to the invention, the scanning camera is placed on the mobile device; the scanning camera is driven by the first motor to move bilaterally and driven by the second motor to rotate vertically; therefore, files can be comprehensively scanned; the scanning range is wide; the number of scanning dead angles is reduced; multiple files can be scanned for one time; and thus, the scanning efficiency is high.

Description

A kind of file scan equipment with voice broadcast function
Technical field
The invention belongs to scanning device technical field, particularly a kind of file scan equipment with voice broadcast function.
Background technology
Along with popularizing of the Internet, memory technology, multimedia technology and database technology are fast-developing, and people's proposed requirement in image applications is growing.Utilize OCR to identify that the character that paper prints has become the main flow of character recognition, optical character identification is by detecting the shape of dark, bright pattern determination printed character, then adopt the mode of optics that the text conversion in paper document is become the image file of black and white lattice, and by identification software, the text conversion in image is become text formatting, edit and process further for word processor.
In routine work, when needing, the file of examination & verification is a lot, and work is busier, during not free reading file, easily causes the accumulation of file, makes urgent file can not get processing timely, cause certain loss and adverse consequences.Easily make mistakes in the artificial process reading, reading time is long, causes inefficiency simultaneously.
China application number be 201520053880.9 patent document disclose a kind of Word message reading device with voice output function, comprise handle, circular frame, data processing module, microprocessor, battery, power management module, display module, key-press module, scan camera shooting head and voice output module, described device can read Word message on medicine bottle, medicine box, newspaper or books by automatic scan, and Word message is transferred to the poor the elderly of eyesight with the form of enlarge font respectively in the form of speech, reduce the probability taking wrong medicine.But this device needs scanning document manually, easily omit image and word, scan time-consuming.And file is normally directly scanned into image by general file scan equipment, document location puts the incorrect skew just easily causing scan image, and effective information can not get complete extraction, reading images failure.
Summary of the invention
The object of the invention is to solve the problem, providing one can automatic scan file reading, then improved the file scan equipment with voice broadcast function of examination & approval efficiency by voice broadcast.
For this reason, technical scheme of the present invention is: a kind of file scan equipment with voice broadcast function, comprises lid and main body, and both sides are by gemel connection, and opposite side is flexibly connected by locking device; Be provided with display screen inside lid, in lid, be provided with at least one file frame; Described body interior is provided with camera module, text conversion module, voice broadcast module, speech reception module and wireless network module; The input of described text conversion module is connected with camera module, output and voice broadcast model calling, and speech reception module is connected with wireless network module; Described camera module comprises scan camera shooting head, holder and shooting processor;
Described main body is provided with mobile device, comprises U-shaped slide rail, and U-shaped slide rail both sides are respectively equipped with fixed block and the first motor, are provided with ball screw between fixed block and the first motor; Ball screw is provided with the slide block be threaded with it, and slide block is provided with support, and support is made up of the fixed head of both sides and the connecting axle of connection two fixed heads; Fixed head side is provided with the second motor, and the rotating shaft of the second motor is connected with connecting axle, and scan camera shooting head is arranged on connecting axle.
Further, described lid side is provided with lock ring, and locking device is positioned in main body, and relative with lock ring position, locking device is flexibly connected with lock ring; Air spring is provided with between inside described lid and inside main body.
Further, described locking device comprises a pair latch segment, L shape connecting rod and electromagnet, and L shape connecting rod and electromagnet are positioned at body interior, and latch segment is positioned at outside main body; Described L shape connecting rod is made up of horizontal part and vertical portion, and horizontal part is connected with electromagnet, and be provided with spring between two vertical portions, main body wall is provided with chute, and two vertical portions are connected with latch segment through chute; Locking device side is provided with fingerprint button, is provided with Fingerprint Identification Unit in main body, and Fingerprint Identification Unit is connected with electromagnet.
Further, be provided with handle outside described lid, inside lid, be also provided with illuminating lamp; Described file frame adopts transparent configuration, is provided with dovetail clip on the upside of file frame.
Further, described ball screw is provided with positioner, positioner comprises the locating piece being positioned at the slide block left and right sides and the tooth bar being positioned at both sides before and after U-shaped slide rail, and locating piece and U-shaped slide rail slip, and the both sides of locating piece are provided with the flexible clamp piece with the teeth groove clamping on tooth bar.
Further, described text conversion module comprises text converter and word processor, and voice broadcast module comprises speech processor and loud speaker, and speech reception module comprises voice receiver, pretreatment unit and speech recognition device.
Further, described main body side is provided with USB interface, and body interior is provided with storage battery, and USB interface and storage battery are electrically connected; Described main body is provided with selector switch, starts switch and pause switch.
Further, described body interior is also provided with music player, and music player comprises MP memory and MP decoder, and the input of described MP decoder is connected with MP memory, and output is connected with loud speaker.
Scan camera shooting head is settled on the mobile device by the present invention, and moved left and right by the first driven by motor scan camera shooting head, the second driven by motor scan camera shooting head rotates up and down, comprehensive scanning document, sweep limits is wide, reduces scanning dead angle, can one-off scanning many parts of files, scan efficiency is high; Positioner on ball screw can limit the distance that probe moves left and right, thus the number of restriction scanning document, adjustability is wide.Meanwhile, many parts of files can be placed in file frame and to clamp with dovetail clip, avoiding carelessly putting of file to cause scanning to read error, reduce error rate; Air spring between lid and main body, the distance between adjustable lid and main body, is convenient to scanning document, and display location is inside lid simultaneously, can adjust the angle of display screen, see the content on display screen so that clearer clearly; Main body is provided with locking device, prevents other people from opening and using this equipment, improves security performance and the confidentiality of equipment.
Image is converted to word by text conversion module by the present invention, and shows in display screen, then by voice broadcast module, word is converted into speech play out, without the need to seeing word, saves reading time; Speech reception module receives extraneous sound, and it is mated with the voice in template, draws text results, more directly approval results is sent to document receivers place by wireless network module, improves office efficiency.Main body side is provided with USB interface and storage battery, charging except using, also electricity can be stored into storage battery simultaneously, when without any external power supply, can utilize storage battery power supply, all can carry out file in any place and check, not limit by place except utilizing USB.
Accompanying drawing explanation
Be described in further detail below in conjunction with accompanying drawing and embodiments of the present invention.
Fig. 1 is the structural representation of outside of the present invention;
Fig. 2 is the structural representation of inside of the present invention;
Fig. 3 is the structural representation of mobile device of the present invention;
Fig. 4 is the structural representation of body interior in the present invention;
Fig. 5 is the structural representation of locking device in the present invention;
Fig. 6 is system architecture diagram of the present invention;
Fig. 7 is workflow block diagram of the present invention.
Be labeled as in figure: lid 1, hinge 11, lock ring 12, file frame 13, dovetail clip 14, handle 15, illuminating lamp 16, main body 2, locking device 21, latch segment 211, L shape connecting rod 212, horizontal part 2121, vertical portion 2122, electromagnet 213, chute 214, spring 215, air spring 22, USB interface 23, storage battery 24, fingerprint button 25, Fingerprint Identification Unit 26, selector switch 27, start switch 28, pause switch 29, camera module 3, scan camera shooting head 31, holder 32, shooting processor 33, text conversion module 4, text converter 41, word processor 42, voice broadcast module 5, speech processor 51, loud speaker 52, music player 53, speech reception module 6, display screen 7, wireless network module 8, mobile device 9, U-shaped slide rail 91, first motor 92, holder 93, ball screw 94, slide block 95, support 96, fixed head 961, connecting axle 962, second motor 963, positioner 97, locating piece 971, tooth bar 972, flexible clamp piece 973, teeth groove 974.
Embodiment
See accompanying drawing.The present embodiment comprises lid 1 and main body 2, and lid side is connected with main body by hinge 11, and opposite side is provided with lock ring 12, and main body is provided with the locking device 21 relative with lock ring position, and locking device is flexibly connected with lock ring.Locking device comprises a pair latch segment 211, L shape connecting rod 212 and electromagnet 213, L shape connecting rod and electromagnet is positioned at main body 2 inside, and latch segment is positioned at outside main body 2.Described L shape connecting rod is made up of horizontal part 2121 and vertical portion 2122, horizontal part is connected with electromagnet, spring 215 is provided with between two vertical portions, main body wall is provided with chute 214, vertical portion is connected with latch segment through chute, by electromagnet make latch segment mutually away from or close to each other, thus fastening lock ring or unclamp lock ring.Locking device side is provided with fingerprint button 25, is provided with Fingerprint Identification Unit 26 in main body 2, and Fingerprint Identification Unit 26 is connected with electromagnet 213.
When needs locking equipment, pressing fingerprint button 25, Fingerprint Identification Unit 26 controls electromagnet 213 energizing magnetic, attracts the horizontal part 2121 of L shape connecting rod 212, make two pieces of latch segments 211 mutually away from thus fastening lock ring 12 closing device, now spring 215 is in extended state; When needs opening device, user passes through fingerprint recognition, it is correct fingerprint that Fingerprint Identification Unit 26 analyzes, then electromagnet 213 power-off is controlled, electromagnet loses magnetism, L shape connecting rod 212 loses the attraction of magnetic force, makes two pieces of latch segments 211 close to each other, open equipment under the rebound effect of spring 215.Utilize fingerprint to open and locking equipment, prevent the file stored in equipment from being stolen by other people, file secret is revealed, and improves theftproof performance and the security performance of equipment.
Be provided with touch screen display screen 7 inside the lid 1 of the present embodiment, freely can amplify, decrease font size, page change, select different reading models, eyes are seen more clearly with comfortable.Air spring 22 is provided with between inside lid and inside main body, can distance between free adjustment lid and main body, the display of convenient scanning and display screen 7.Be provided with at least one file frame 13 in lid 1, file frame adopts transparent configuration, makes scanning clearer.Be provided with dovetail clip 14 on the upside of file frame, clamp file, be convenient to scanning.Described body interior is provided with camera module 3, text conversion module 4, voice broadcast module 5, speech reception module 6 and wireless network module 8, the input of described text conversion module 4 is connected with camera module 3, output is connected with voice broadcast module 5, and described speech reception module 6 is connected with wireless network module 8.Camera module 3 photographic images, image is converted into word by text conversion module 4, and voice broadcast module 5 carries out voice conversion and report; Speech reception module 6 utilizes wireless network module 8 document approvals result to be sent to document receivers place after receiving voice.
The camera module 3 of the present embodiment comprises scan camera shooting head 31, holder 32 and shooting processor 33, and main body 2 is provided with mobile device 9, and scan camera shooting head is positioned on mobile device.Described mobile device comprises U-shaped slide rail 91, and the two ends of U-shaped slide rail are respectively equipped with the first motor 92 and holder 93.Ball screw 94 is provided with between first motor and holder, first motor can drive ball screw to rotate, ball screw is provided with the slide block 95 be threaded with it, and slide block is provided with support 96, and support is formed by two pieces of fixed heads 961 and through the connecting axle 962 of two fixed heads.The rotating shaft that fixed head side is provided with the second motor 963, second motor 963 is connected with connecting axle, and scan camera shooting head 31 is arranged on connecting axle 962.Described first motor can drive ball screw to rotate, and slide block 95 is moved around on U-shaped slide rail 91, thus drives scan camera shooting head 31 to move around; Second motor 963 can drive connecting axle about 962 to rotate, thus drives scan camera shooting head about 31 to rotate.The comprehensive scanning document of scan camera shooting head, avoids the scanning dead angle of file, makes file obtain complete reading, reduces and omits.
The ball screw 94 of the present embodiment is provided with positioner 97, positioner comprises the locating piece 971 being positioned at the slide block left and right sides and the tooth bar 972 being positioned at both sides before and after U-shaped slide rail, locating piece 971 slips with U-shaped slide rail 91, the both sides of locating piece 971 are provided with the flexible clamp piece 973 with teeth groove 974 clamping on tooth bar, flexible clamp piece is connected in the teeth groove of adjacent teeth, thus locating piece is locked on U-shaped slide rail.The flexible clamp piece of pressing locating piece both sides makes the teeth groove on flexible clamp piece disengaging tooth bar, then locating piece can be made to slidably reciprocate on U-shaped slide rail; After determining the distance of camera movement, then loosen the pressing to flexible clamp piece 973, make flexible clamp piece snap fit onto stationary positioned block on teeth groove.Move freely the position with lock in place block 971, thus the distance of restriction slide block 95 movement, determine the scope of scan camera shooting head 31 scanning document, avoid multiple archive files confusion to read, cause information to mix, read error.
Described text conversion module 4 comprises text converter 41 and word processor 42, and image is converted to word by described text converter 41, and word is sent to display screen 7 and voice broadcast module 5 by described word processor 42.Described voice broadcast module 5 comprises speech processor 51 and loud speaker 52, and word is converted into voice signal by described speech processor 51, and described loud speaker 52 plays back.Described speech reception module 6 comprises voice receiver, pretreatment unit and speech recognition device.Voice receiver receives voice, pretreatment unit first carries out preliminary treatment to sound, comprise the noise effect etc. that speech signal samples, anti aliasing bandpass filtering, removal individual pronunciation difference and equipment, environment cause, then speech recognition device carries out feature extraction, for extracting in voice the parameters,acoustic reflecting substantive characteristics, carry out contrast with the parameters,acoustic in template to mate, identify this meaning, file is examined.The image scanned is converted into word and voice, checks for higher level, the then direct voice examination & approval of higher level, save time, increase work efficiency.Before carrying out speech recognition, first huge sound template storehouse will be set up, talker is allowed repeatedly to repeat voice, remove redundant information in raw tone sample, retain critical data, then by certain rule to data in addition cluster, the voice collecting of his personalization can be entered, out re-reading one by one with the form of each voice unit, then with hand, the form of the meaning text of each voice unit is inputted into sound template storehouse by enunciator, rock mechanism storehouse.
Main body 2 side of the present embodiment is provided with USB interface 23, and body interior is provided with storage battery 24, and USB interface and storage battery are electrically connected.Charging except utilizing USB except using, also electricity can be stored into storage battery, when without any external power supply, can storage battery power supply be utilized, all can carry out file in any places such as office, Che Nei or familys and check, not limit by place.Be provided with handle 15 outside lid, inner side is also provided with illuminating lamp 16, and handle conveniently lifts equipment, and illuminating lamp provides good scanning circumstance and good reading environment, makes the word read of scanning and display screen clearer.Described main body is also provided with selector switch 27, starts switch 28 and pause switch 29.Selector switch can be used to select voice broadcast or text importing, starts beginning and time-out that switch and pause switch are used for selecting voice broadcast, designs humanized, allow user use more convenient.Described body interior is also provided with music player 53, and described music player comprises MP memory and MP decoder, and the input of described MP decoder is connected with MP memory, and output is connected with loud speaker 52.Music player 53 can play music in spare time, loosens mood.
During the present embodiment work, be first placed in file frame 13 by file, and fix with dovetail clip 14, file is carried out image scanning by scan camera shooting head 31, and is stored by holder 32 by this image.Then processor 33 of making a video recording carries out video procession, removes mixed and disorderly interfere information, characteristic information extraction, then characteristic information is transferred to text conversion module 4 and processes.Image information is converted to Word message by text converter 41, then Word message is sent to voice broadcast module 5 by word processor 42 again, and Word message is converted into voice by speech processor 51, carries out voice output by loud speaker 52, directly listen to information, convenient and swift.Word is sent in display screen 7 and shows by word processor 42 simultaneously, and user can utilize touch display screen 7 that word is carried out Scalable, changes interface, reads the volume of background and loud speaker 52, meet word read demand and voice answering demand simultaneously.After leading body at a higher level hears out or finishes watching file, directly can be made comments and instructions by voice, whether agree to.Voice receiver receiving speech information, pretreatment unit gathers voice signal, remove the interference except individual pronunciation difference and external environment, characteristic information extraction, this characteristic information and the sound template in ATL are carried out contrast and mate by speech recognition device, judge correct voice messaging, then by wireless network module 8, this recognition result is sent to document receivers place, allow other people understand the written instructions result of file in time, save a large amount of reading time, substantially increase operating efficiency.

Claims (8)

1. have a file scan equipment for voice broadcast function, comprise lid and main body, both sides are by gemel connection, and opposite side is flexibly connected by locking device; It is characterized in that: inside lid, be provided with display screen, in lid, be provided with at least one file frame; Described body interior is provided with camera module, text conversion module, voice broadcast module, speech reception module and wireless network module; The input of described text conversion module is connected with camera module, output and voice broadcast model calling, and speech reception module is connected with wireless network module; Described camera module comprises scan camera shooting head, holder and shooting processor;
Described main body is provided with mobile device, comprises U-shaped slide rail, and U-shaped slide rail both sides are respectively equipped with fixed block and the first motor, are provided with ball screw between fixed block and the first motor; Ball screw is provided with the slide block be threaded with it, and slide block is provided with support, and support is made up of the fixed head of both sides and the connecting axle of connection two fixed heads; Fixed head side is provided with the second motor, and the rotating shaft of the second motor is connected with connecting axle, and scan camera shooting head is arranged on connecting axle.
2. a kind of file scan equipment with voice broadcast function as claimed in claim 1, is characterized in that: described lid side is provided with lock ring, and locking device is positioned in main body, and relative with lock ring position, locking device is flexibly connected with lock ring; Air spring is provided with between inside described lid and inside main body.
3. a kind of file scan equipment with voice broadcast function as claimed in claim 2, is characterized in that: described locking device comprises a pair latch segment, L shape connecting rod and electromagnet, and L shape connecting rod and electromagnet are positioned at body interior, and latch segment is positioned at outside main body; Described L shape connecting rod is made up of horizontal part and vertical portion, and horizontal part is connected with electromagnet, and be provided with spring between two vertical portions, main body wall is provided with chute, and two vertical portions are connected with latch segment through chute; Locking device side is provided with fingerprint button, is provided with Fingerprint Identification Unit in main body, and Fingerprint Identification Unit is connected with electromagnet.
4. a kind of file scan equipment with voice broadcast function as claimed in claim 1, is characterized in that: be provided with handle outside described lid, be also provided with illuminating lamp inside lid; Described file frame adopts transparent configuration, is provided with dovetail clip on the upside of file frame.
5. a kind of file scan equipment with voice broadcast function as claimed in claim 1, it is characterized in that: described ball screw is provided with positioner, positioner comprises the locating piece being positioned at the slide block left and right sides and the tooth bar being positioned at both sides before and after U-shaped slide rail, locating piece and U-shaped slide rail slip, and the both sides of locating piece are provided with the flexible clamp piece with the teeth groove clamping on tooth bar.
6. a kind of file scan equipment with voice broadcast function as claimed in claim 1, it is characterized in that: described text conversion module comprises text converter and word processor, voice broadcast module comprises speech processor and loud speaker, and speech reception module comprises voice receiver, pretreatment unit and speech recognition device.
7. a kind of file scan equipment with voice broadcast function as claimed in claim 1, it is characterized in that: described main body side is provided with USB interface, and body interior is provided with storage battery, USB interface and storage battery are electrically connected; Described main body is provided with selector switch, starts switch and pause switch.
8. a kind of file scan equipment with voice broadcast function as claimed in claim 1, it is characterized in that: described body interior is also provided with music player, music player comprises MP memory and MP decoder, the input of described MP decoder is connected with MP memory, and output is connected with loud speaker.
CN201510734926.8A 2015-11-03 2015-11-03 A kind of file scan equipment with voice broadcast function Active CN105357413B (en)

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CN105357413B CN105357413B (en) 2018-11-09

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN106446887A (en) * 2016-11-07 2017-02-22 罗杰仁 Method and device for converting picture into voice
CN108038463A (en) * 2017-12-22 2018-05-15 大连景竣科技有限公司 A kind of system and method handled official business with identification word or file
CN108433290A (en) * 2018-03-23 2018-08-24 电子科技大学中山学院 Portable multimedia teaching equipment box
CN112131941A (en) * 2020-08-17 2020-12-25 新丰电器(深圳)有限公司 Automatic inspection frame based on OCR discernment
CN113850962A (en) * 2021-09-13 2021-12-28 北京优海网络科技有限公司 Automatic settlement serving table for intelligent catering and operation method thereof

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CN104036564A (en) * 2014-05-29 2014-09-10 长兴西川锁业有限公司 Traveling case fingerprint lock
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CN104036564A (en) * 2014-05-29 2014-09-10 长兴西川锁业有限公司 Traveling case fingerprint lock
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106446887A (en) * 2016-11-07 2017-02-22 罗杰仁 Method and device for converting picture into voice
CN108038463A (en) * 2017-12-22 2018-05-15 大连景竣科技有限公司 A kind of system and method handled official business with identification word or file
CN108433290A (en) * 2018-03-23 2018-08-24 电子科技大学中山学院 Portable multimedia teaching equipment box
CN112131941A (en) * 2020-08-17 2020-12-25 新丰电器(深圳)有限公司 Automatic inspection frame based on OCR discernment
CN113850962A (en) * 2021-09-13 2021-12-28 北京优海网络科技有限公司 Automatic settlement serving table for intelligent catering and operation method thereof

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