CN113099434B - Wireless co-screen device for magnetically attracting and connecting transmitting end and receiving end - Google Patents
Wireless co-screen device for magnetically attracting and connecting transmitting end and receiving endDownload PDFInfo
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- CN113099434B CN113099434BCN202110423637.1ACN202110423637ACN113099434BCN 113099434 BCN113099434 BCN 113099434BCN 202110423637 ACN202110423637 ACN 202110423637ACN 113099434 BCN113099434 BCN 113099434B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Technical Field
The invention relates to the technical field of wireless co-screen, in particular to a wireless co-screen device for magnetically connecting a transmitting end and a receiving end.
Background
The same-screen device pushes pictures, videos, music and the like on a mobile phone, a tablet computer and a computer to a display screen, a television, a projector and the like for playing, so that the transmission of digital multimedia (high-definition video, audio and picture) contents is realized, the display contents of different screens are synchronized, and the small screen is changed into the large screen. The compatible cross-over operation is realized among different operating systems (IOS, ANDROID, WIN7, WINDOWS XP, VISTA and the like) and different terminal equipment (mobile phones, tablets, computers and TVs). The same-screen device breaks the defects that independent operation and interaction cannot be achieved among the platform devices, and free office and life can be achieved.
At present, the same-screen device can be divided into a wired same-screen device and a wireless same-screen device, and the wired same-screen device and the wireless same-screen device are mainly different from the connection mode of the wired same-screen device and the wireless same-screen device; the wired screen-sharing device is connected in a mode that one end of a connecting wire is connected with a mobile phone and the other end of the connecting wire is connected with a television and other devices, so that screen sharing can be achieved.
Compared with the prior art, the connection mode of the wireless one-screen displayer is more convenient and intelligent, and the wireless one-screen displayer is displayed on a cross-platform one-screen displayer by delivering the wireless one-screen displayer to a television and other equipment through WiFi (wireless fidelity); the advantages are that: the device is not restricted by cables and can move freely; but the disadvantages are: sometimes the transmission is unstable.
Therefore, how to ensure the safety and stability of signal transmission on the basis of getting rid of the cable constraint becomes a problem to be solved by the existing wireless screen sharing device.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a wireless co-screen device for magnetically connecting a transmitting end and a receiving end, so as to solve the technical problem of ensuring the safety and stability of signal transmission of the wireless co-screen device.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a magnetism is inhaled and is connected wireless with screen ware of transmitting terminal and receiving terminal, includes wireless with screen ware HUB, this wireless with screen ware HUB includes: the NFC near field communication system comprises a receiving end RT, a magnetic module I and a control module, wherein the receiving end RT is provided with the NFC near field communication module I, and the receiving end RT is provided with the magnetic module I;
above-mentioned wireless with screen ware HUB still includes: the transmitting terminal TT is provided with an NFC near field communication module II, and the transmitting terminal TT is provided with a magnet module II;
before the NFC near field communication module I of the transmitting terminal TT and the NFC near field communication module II of the receiving terminal RT perform data interaction, the NFC near field communication module II of the transmitting terminal TT starts to send the same-screen data on the signal transmitting equipment STE to the NFC near field communication module I of the receiving terminal RT only after the identity of the NFC near field communication module I of the receiving terminal RT is proved to be legal;
the magnet module I of the transmitting end TT is connected with the magnet module II of the receiving end RT in a non-fixed contact mode through magnetic attraction.
Further, a receiving end RT of the wireless on-screen HUB performs data transmission to the signal receiving display device SRDE through a data line DLrt.
Further, the transmitting end TT of the wireless co-screen HUB receives co-screen data on the signal transmitting device STE through the data line DLtt.
Further, the step of performing data interaction between the transmitting end TT and the receiving end RT of the wireless on-screen HUB is as follows:
in step S1, the NFC module i of the transmitting end TT first selects a key pair (k) randomly1∥k2) Then the key pair (k) is combined1∥k2) Sharing with an NFC near field communication module II of a receiving end RT;
step S2, the NFC near field communication module II of the receiving end RT sends a data interaction request to the NFC near field communication module I of the transmitting end TT;
step S3, the NFC near field communication module I of the transmitting terminal TT replies, and the NFC near field communication module II of the receiving terminal RT is requested to provide legal identity identification;
in step S4, the NFC module ii of the receiving end RT first selects a random number δ, and then starts to calculate X ═ δ ≦ k1，Y＝δ⊕k2Then, X and Y are sent to an NFC near field communication module I of a transmitting terminal TT;
in step S5, after receiving X and Y, the NFC near-field communication module i of the transmitting end TT starts to calculate X ═ X ≦ k first1，Y'＝Y⊕k2Then verifying whether the value of X 'is equal to the value of Y';
step S6, if the equation X' is satisfied, it is proved that the identity of the NFC near-field communication module ii of the receiving end RT is legal, and the NFC near-field communication module i of the transmitting end TT sends the same-screen data on the signal transmitting device STE to the NFC near-field communication module ii of the receiving end RT.
Further, the key pair (k)1∥k2) K in (1)1And k2And the random number delta are both binary sequences, both n in length, and n is an even number.
Further, the signal reception display device SRDE includes: a television display screen TVs, a computer terminal CT and a projector P.
Further, the signal transmitting apparatus STE includes: smart phone SP, tablet pc TC.
(III) advantageous technical effects
Compared with the prior art, the invention has the following beneficial technical effects:
according to the invention, the magnet module of the transmitting end of the wireless screen sharing device is connected with the magnet module of the receiving end in a non-fixed contact manner through magnetic attraction, so that the NFC near field communication module of the transmitting end and the NFC near field communication module of the receiving end perform mutual data interaction through NFC near field communication technology, and before the data interaction, the NFC near field communication module of the transmitting end starts to send the screen sharing data on the signal transmitting equipment to the NFC near field communication module of the receiving end only after the identity of the NFC near field communication module of the receiving end is proved to be legal;
therefore, the technical effect of effectively ensuring the safe and stable transmission of the same-screen data signals is achieved.
Drawings
Fig. 1 is a logic diagram of working components of a wireless co-screen device for magnetically connecting a transmitting end and a receiving end according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides a magnetism is inhaled and is connected wireless with screen ware of transmitting terminal and receiving terminal, includes wireless with screen ware HUB, as shown in fig. 1, this is wireless with screen ware HUB includes: the receiving end RT is used for realizing data transmission to the signal receiving display equipment SRDE through a data line DLrt, an NFC near field communication module I is mounted on the receiving end RT, and a magnet module I is mounted on the receiving end RT;
above-mentioned wireless with screen ware HUB still includes: a transmitting end TT for receiving the same-screen data on the signal transmitting equipment STE through a data line DLtt, wherein an NFC near field communication module II is mounted on the transmitting end TT, and a magnet module II is mounted on the transmitting end TT;
the NFC near field communication module I of the transmitting terminal TT and the NFC near field communication module II of the receiving terminal RT perform mutual data interaction through an NFC near field communication technology;
the magnet module I of the transmitting end TT is connected with the magnet module II of the receiving end RT in a non-fixed contact mode through a magnetic attraction effect;
wherein the signal receiving display device SRDE includes: a television display screen TVs, a computer terminal CT and a projector P;
the signal transmitting apparatus STE includes: a smart phone SP and a tablet PC TC;
in order to improve the communication safety between the NFC near field communication module I of the transmitting terminal TT and the NFC near field communication module II of the receiving terminal RT, and also in order to prevent illegal NFC equipment from imitating the NFC near field communication module II of the legal receiving terminal RT and carrying out data interaction with the NFC near field communication module I of the transmitting terminal TT, after the NFC near field communication module I and the NFC near field communication module II are in communication connection, the transmitting terminal TT and the receiving terminal RT carry out data interaction, and the steps are as follows:
in step S1, the NFC module i of the transmitting end TT first selects a key pair (k) randomly1∥k2) Then the key pair (k) is combined1∥k2) Sharing with an NFC near field communication module II of a receiving end RT;
wherein k is1And k2All binary sequences have the length of n, and n is an even number;
step S2, the NFC near field communication module II of the receiving end RT sends a data interaction request to the NFC near field communication module I of the transmitting end TT;
step S3, the NFC near field communication module I of the transmitting terminal TT replies, and the NFC near field communication module II of the receiving terminal RT is requested to provide legal identity identification;
in step S4, the NFC module ii of the receiving end RT first selects a random number δ, and then starts to calculate X ═ δ ≦ k1，Y＝δ⊕k2Then, X and Y are sent to an NFC near field communication module I of a transmitting terminal TT;
the random number delta is a binary sequence, the length of the binary sequence is n, and n is an even number;
in step S5, after receiving X and Y, the NFC near-field communication module i of the transmitting end TT starts to calculate X ═ X ≦ k first1，Y'＝Y⊕k2Then verifying whether the value of X 'is equal to the value of Y';
step S6, if the equation X' is true, it is proved that the identity of the NFC near-field communication module ii of the receiving end RT is legal, and the NFC near-field communication module i of the transmitting end TT sends the same-screen data on the signal transmitting device STE to the NFC near-field communication module ii of the receiving end RT;
the physical connection and data interaction mode between the transmitting terminal TT and the receiving terminal RT of the wireless co-screen HUB can effectively ensure the safe and stable transmission of co-screen data signals;
above-mentioned wireless with screen ware HUB adopts plastic rubber material to make and forms, wherein, the part that is printed with the cell-phone and marks is transmitting terminal TT, the part that is printed with the display and marks is receiving terminal RT, TV display screen TVs can be connected to this receiving terminal RT, computer terminal CT, projecting apparatus P, and receiving terminal RT and transmitting terminal TT all adopt hidden interface design, guarantee independent product integrality, receiving terminal RT and transmitting terminal TT detachable are independently accomodate, also can inhale the whole accomodation of structure through magnetism.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A wireless co-screen device for connecting a transmitting end and a receiving end through magnetic attraction is characterized by comprising the wireless co-screen deviceHUBThe wireless co-screen deviceHUBThe method comprises the following steps:receiving endRTAt the receiving endRTIs provided withNFCNear field communication moduleⅠAnd at the receiving endRTIs provided with a magnet moduleⅠ；
The wireless co-screen deviceHUBFurther comprising: transmitting terminalTTAt the transmitting endTTIs provided withNFCNear field communication moduleⅡAnd at the transmitting endTTIs provided with a magnet moduleⅡ；
Transmitting terminalTTIs/are as followsNFCNear field communication moduleⅠAnd a receiving endRTIs/are as followsNFCNear field communication moduleⅡBefore data interaction, only the certification receiving endRTIs/are as followsNFCNear field communication moduleⅠAfter the identity of the terminal is legal, the transmitting terminalTTIs/are as followsNFCNear field communication moduleⅡJust start to the receiving endRTIs/are as followsNFCNear field communication moduleⅠTransmitting apparatus for transmitting signalSTEOn-screen data;
transmitting terminalTTMagnet moduleⅠThrough magnetic attraction with the receiving endRTMagnet moduleⅡRealizing non-fixed contact type connection between the two;
the wireless co-screen deviceHUBIs a transmitting terminalTTAnd a receiving endRTThe steps of data interaction are as follows:
step (ii) ofS1Transmitting terminalTTIs/are as followsNFCNear field communication moduleⅠFirstly, randomly selecting a key pair(k1ǁk2)Then the key pair is combined(k1ǁk2)And a receiving endRTIs/are as followsNFCNear field communication moduleⅡSharing is carried out;
step (ii) ofS2Receiving endRTIs/are as followsNFCNear field communication moduleⅡTo the transmitting endTTIs/are as followsNFCNear field communication moduleⅠSending a data interaction request;
step (ii) ofS3Transmitting terminalTTIs/are as followsNFCNear field communication moduleⅠReply to the receiverRTIs/are as followsNFCNear field communication moduleⅡProviding a legal identity certificate;
step (ii) ofS4Receiving endRTIs/are as followsNFCNear field communication moduleⅡFirstly, a random number is selectedδThen start to calculateX=δ⊕k1，Y=δ⊕k2Then will beXAndYis sent to a transmitting terminalTTIs/are as followsNFCNear field communication moduleⅠ；
Step (ii) ofS5Transmitting terminalTTIs/are as followsNFCNear field communication moduleⅠReceive toXAndYafter that, first, calculation is startedX'=X⊕k1，Y'=Y⊕k2Then verifyX'Whether or not the value of (A) is equal toY'A value of (d);
step (ii) ofS6If equationX'=Y'Is established, proves that the receiving endRTIs/are as followsNFCNear field communication moduleⅡThe identity of (3) is legal, and the transmitting endTTIs/are as followsNFCNear field communication moduleⅠTo the receiving endRTIs/are as followsNFCNear field communication moduleⅡTransmitting apparatus for transmitting signalSTEOn-screen data;
the key pair(k1ǁk2)In (1)k1Andk2and a random numberδAre all binary sequences, all of which are of lengthnAnd is andnis an even number.
2. The wireless co-screen device for magnetically attracting and connecting a transmitting end and a receiving end according to claim 1, wherein the wireless co-screen device is a wireless co-screen deviceHUBReceiving end ofRTThrough data lineDLrtDirectional signal receiving display deviceSRDEAnd carrying out data transmission.
3. The wireless co-screen device for magnetically attracting and connecting a transmitting end and a receiving end according to claim 2, wherein the wireless co-screen device is a wireless co-screen deviceHUBIs a transmitting terminalTTThrough data lineDLttReceiving signal transmitting apparatusSTEOn the same screen.
4. The wireless co-screen device with magnetic attraction for connecting the transmitting end and the receiving end according to claim 2,the signal receiving and displaying deviceSRDEThe method comprises the following steps: television display screenTVsComputer terminalCTProjectorP。
5. The wireless co-screen device with magnetic attraction for connecting the transmitting terminal and the receiving terminal according to claim 3, wherein the signal transmitting deviceSTEThe method comprises the following steps: smart phoneSPTablet personal computerTC。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110423637.1ACN113099434B (en) | 2021-04-20 | 2021-04-20 | Wireless co-screen device for magnetically attracting and connecting transmitting end and receiving end |
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| CN202110423637.1ACN113099434B (en) | 2021-04-20 | 2021-04-20 | Wireless co-screen device for magnetically attracting and connecting transmitting end and receiving end |
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| CN113099434A CN113099434A (en) | 2021-07-09 |
| CN113099434Btrue CN113099434B (en) | 2022-03-11 |
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