CN107124574B - NFC intelligent dialing system based on set top box and method for realizing video communication - Google Patents
NFC intelligent dialing system based on set top box and method for realizing video communication Download PDFInfo
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- CN107124574B CN107124574B CN201710329016.0A CN201710329016A CN107124574B CN 107124574 B CN107124574 B CN 107124574B CN 201710329016 A CN201710329016 A CN 201710329016A CN 107124574 B CN107124574 B CN 107124574B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
- H04N21/42684—Client identification by a unique number or address, e.g. serial number, MAC address, socket ID
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
Abstract
The invention discloses an NFC intelligent dialing system based on a set top box and a method for realizing video communication. The invention can quickly realize the binding of the NFC card and realize the video communication through dialing, so that the video communication of the set top box is more convenient and intelligent, the pain point that the old uses the set top box remote controller to dial the video telephone for complicated operation is solved, and the use of the old is convenient.
Description
Technical Field
The invention belongs to the field of intelligent communication, and particularly relates to an NFC intelligent dialing system based on a set top box and a method for realizing video communication.
Background
A set-top box, also called digital video converter box, abbreviated as STB, is a device that connects a television set with an external signal source and can convert compressed digital signals into television content and display it on the television set. The signals may come from cable, satellite dish, broadband network and terrestrial broadcast. The set-top box receives digital contents including an electronic program guide, an internet web page, subtitles, and the like, in addition to images and sounds that an analog television can provide. Enabling users to watch digital television programs on existing television sets and to conduct interactive digital entertainment, education, and commercialization activities over a network.
The existing set top box video communication technology mainly receives an externally input operation instruction through a set top box and judges whether the operation instruction is an operation instruction of a video call service shortcut operation instruction or not; if the operation instruction is an operation instruction of a video call service shortcut operation instruction, establishing a video call window in a set-top box browser through a window manager of the set-top box browser in the IPTV set-top box, wherein the set-top box browser also comprises at least one service window, each service window in the set-top box browser corresponds to different services and service engines, and an IPTV video call service engine corresponding to the video call window, namely a video call client, has audio and video acquisition and transmission functions and a function of performing communication interaction with a multimedia subsystem core network; when the video call window is established, the IPTV set top box suspends the service and the service engine corresponding to the current service window in the set top box browser, and the window manager hides the current service window and records the window state of the current service window and the relationship between windows; the set top box browser informs the video call client of the operation instruction received by the video call window; the video call client initiates a video call request to a called party according to the received operation instruction, and notifies the set top box browser of the received request response in an event mode; and the set-top box browser displays the request response through an event notification page. However, the above-mentioned technologies are complex to operate, and especially cannot meet the requirement of the elderly for easy and convenient operation, and in addition, although the NFC sensing device and the near field communication technology are mature, the technologies are mainly applied in the field of mobile phones, and no specific case and scene application exists in the field of set-top boxes.
Therefore, in order to solve the pain of the old who uses the set top box remote controller to dial the video telephone for complex operation, the invention designs a method, namely, a professional NFC module is integrated on a set top box mainboard, and the NFC card is quickly bound through circuit design and application system design, and the bound telephone is dialed for video communication, so that the video communication of the set top box is more convenient and intelligent, and the old can conveniently use the set top box.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the NFC intelligent dialing system based on the set top box and the method for realizing video communication.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a NFC intelligence dialing system based on STB, includes NFC controller, clock interface circuit, antenna, host computer interface and power source, the clock interface circuit passes through the access of the outside clock input of NFC controller the NFC controller, the antenna pass through antenna matching circuit with the NFC controller is connected, the host computer interface with the NFC controller is connected, power source with the NFC controller is connected.
Further, as a preferred technical solution, the clock interface circuit includes a crystal oscillator Y, a first capacitor C1, and a second capacitor C2, a first pin and a third pin of the crystal oscillator Y are respectively and correspondingly connected to one end of the first capacitor C1 and one end of the second capacitor C2, the other end of the first capacitor C1 and the other end of the second capacitor C2 are grounded, the first pin and the third pin of the crystal oscillator Y are respectively connected to an external clock input terminal of the NFC controller, and the second pin and the fourth pin of the crystal oscillator Y are grounded.
Further, as a preferred technical solution, the antenna matching circuit includes a first inductor L1, a second inductor L2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11, and a twelfth capacitor C12, one end of the first inductor L1 and one end of the second inductor L2 are connected to the NFC controller, the other end of the first inductor L1 and the other end of the second inductor L2 are connected through a sixth capacitor C6 and a seventh capacitor C7 connected in series, and a point of the sixth capacitor C6 and a seventh capacitor C7 connected in series is connected to the ground; the fifth capacitor C5 is connected in series with the third capacitor C3 and then connected in parallel to two ends of the sixth capacitor C6; the third resistor R3, the first resistor R1 and the second resistor R2 are sequentially connected in series and then connected in parallel at two ends of the fifth capacitor C5; one end of the fifth capacitor C5 is connected with the third resistor R3, and the other end of the fifth capacitor C5 is connected with the second resistor R2; the eighth capacitor C8 is connected in series with the eleventh capacitor C11 and then connected in parallel to two ends of the seventh capacitor C7, the fourth resistor R4, the sixth resistor R6 and the fifth resistor R5 are sequentially connected in series and then connected in parallel to two ends of the eighth capacitor C8, one end of the eighth capacitor C8 is connected with the fourth resistor R4, and the other end of the eighth capacitor C8 is connected with the fifth resistor R5; one end of the fourth capacitor C4 is connected to the serial connection point of the first resistor R1 and the second resistor R2, and the other end of the fourth capacitor C4 is connected to the NFC controller; one end of the ninth capacitor C9 is connected to the serial connection point of the fifth resistor R5 and the sixth resistor R6, and the other end of the ninth capacitor C9 is connected to the NFC controller; the tenth capacitor C10 is connected in parallel to two ends of the third capacitor C3, and the twelfth capacitor C12 is connected in parallel to two ends of the eleventh capacitor C11.
Further, as a preferred technical solution, the capacitor further includes a thirteenth capacitor C13 and a fourteenth capacitor C14, where the thirteenth capacitor C13 is connected in parallel to both ends of the eighth capacitor C8, and the fourteenth capacitor C14 is connected in parallel to both ends of the fifth capacitor C5.
Further, as a preferred technical solution, the NFC device further includes an NFC enable interface circuit, where the NFC enable interface circuit includes a field effect transistor Q, a seventh resistor R7, an eighth resistor R8, and a fifteenth capacitor C15, a gate of the field effect transistor Q is connected to a high level, a drain of the field effect transistor Q is connected to the high level after being connected to the seventh resistor R7 in series, and the drain of the field effect transistor Q is connected to the NFC controller, a source of the field effect transistor Q is connected to an NFC enable signal input terminal, one end of the eighth resistor R8 is connected to the source of the field effect transistor Q, the other end of the eighth resistor R8 is connected to the drain of the field effect transistor Q, and one end of the fifteenth capacitor C.
A method for realizing video communication by adopting the NFC intelligent dialing system based on the set top box is characterized by comprising the following steps:
step 1: a user swipes an NFC card, and a communication application reads the contact information of the NFC card and realizes binding;
step 2: a user swipes an NFC card, a communication application reads a card serial number of the NFC card and inquires whether the card serial number is in a bound state, if not, the step 1 is carried out, otherwise, the step 3 is carried out;
and step 3: video communication is initiated.
Further, as a preferred technical scheme, the specific process of the step 1 is as follows:
step 1-1: starting a communication application, selecting a contact to be bound and activating a binding button, wherein the contact information comprises an ID and/or a communication signal;
step 1-2, opening a card swiping guidance interface program, using an NFC adapter to promote the NFC card swiping event processing priority of a guidance interface, and after a user swipes a card, sending request information to the guidance interface program by an android operating system, wherein the request information carries an NFC label;
and 1-3, the communication application acquires the NFC tag from the request information, reads the NFC card serial number from the NFC tag, writes the NFC card serial number and the contact information into an SQlite database of the communication application program, and establishes a binding relationship.
Further, as a preferred technical solution, the specific process of step 3 is:
step 3-1, when a user swipes a card, the set top box customizes an android operating system to start monitoring an NFC event and acquire an NFC label from request information according to the received request information, and reads an NFC card serial number from the NFC label;
step 3-2: inquiring information of a contact person bound by the card from an SQlite database of a local library of a communication application program according to the serial number of the NFC card obtained in the step 3-1, and prompting a user that the card is not bound with an account if the information of the contact person bound by the card is not matched; if the matching is successful, performing step 3-3;
step 3-3: and distinguishing a television terminal or a mobile phone terminal according to the communication signal of the NFC card, if the NFC card is the mobile phone terminal, automatically initiating video communication by using a communication cloud platform, and if the NFC card is the television terminal, automatically initiating video communication by using SIP + WebRTC.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the invention provides the NFC intelligent dialing system based on the set top box and the method for realizing video communication by adopting the system, which can quickly realize the binding of the NFC card and realize the video communication through dialing, so that the video communication of the set top box is more convenient and intelligent, the pain that the old uses a set top box remote controller to dial a video telephone for operation is complicated is solved, and the use by the old is convenient.
(2) The NFC intelligent dialing system based on the set top box and the method for realizing video communication by adopting the NFC intelligent dialing system can ensure that telephone dialing is carried out under the condition that the set top box is started to operate but a television screen is not started, so that the convenience experience of calling by a user is enhanced, the video communication experience based on the set top box is smoother, and the scene application range of a set top box product is expanded.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
FIG. 2 is a block diagram of the clock interface circuit of FIG. 1;
fig. 3 is a diagram of the antenna matching circuit of fig. 1;
fig. 4 is a circuit diagram of the NFC enabled interface circuit of fig. 1;
fig. 5 is a schematic diagram of a binding process of an NFC card according to the present invention;
fig. 6 is a schematic diagram of a process of NFC card dial-up video communication according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example (b):
as shown in fig. 1, the NFC intelligent dialing system based on the set top box according to this embodiment includes an NFC controller, a clock interface circuit, an antenna, a host interface, and a power interface, where the clock interface circuit is connected to the NFC controller through an external clock input terminal of the NFC controller, the antenna is connected to the NFC controller through an antenna matching circuit, the host interface is connected to the NFC controller, and the power interface is connected to the NFC controller.
As shown in fig. 2, the clock interface circuit of the present embodiment may be designed as follows: the clock interface circuit comprises a crystal oscillator Y, a first capacitor C1 and a second capacitor C2, wherein a first pin and a third pin of the crystal oscillator Y are correspondingly connected with one end of the first capacitor C1 and one end of the second capacitor C2 respectively, the other end of the first capacitor C1 and the other end of the second capacitor C2 are grounded, the first pin and the third pin of the crystal oscillator Y are connected to an external clock input end of the NFC controller respectively, and the second pin and the fourth pin of the crystal oscillator Y are grounded.
As shown in fig. 3, the antenna matching circuit of the present embodiment may be designed as follows: the antenna matching circuit comprises a first inductor L1, a second inductor L2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11 and a twelfth capacitor C12, wherein one end of the first inductor L1 and one end of the second inductor L2 are connected to the NFC controller, the other end of the first inductor L1 and the other end of the second inductor L2 are connected through the sixth capacitor C6 and the seventh capacitor C7 which are connected in series, and the point of the sixth capacitor C6 and the seventh capacitor C7 which are connected in series is connected to the ground; the fifth capacitor C5 is connected in series with the third capacitor C3 and then connected in parallel to two ends of the sixth capacitor C6; the third resistor R3, the first resistor R1 and the second resistor R2 are sequentially connected in series and then connected in parallel at two ends of the fifth capacitor C5; one end of the fifth capacitor C5 is connected with the third resistor R3, and the other end of the fifth capacitor C5 is connected with the second resistor R2; the eighth capacitor C8 is connected in series with the eleventh capacitor C11 and then connected in parallel to two ends of the seventh capacitor C7, the fourth resistor R4, the sixth resistor R6 and the fifth resistor R5 are sequentially connected in series and then connected in parallel to two ends of the eighth capacitor C8, one end of the eighth capacitor C8 is connected with the fourth resistor R4, and the other end of the eighth capacitor C8 is connected with the fifth resistor R5; one end of the fourth capacitor C4 is connected to the serial connection point of the first resistor R1 and the second resistor R2, and the other end of the fourth capacitor C4 is connected to the NFC controller; one end of the ninth capacitor C9 is connected to the serial connection point of the fifth resistor R5 and the sixth resistor R6, and the other end of the ninth capacitor C9 is connected to the NFC controller; the tenth capacitor C10 is connected in parallel to two ends of the third capacitor C3, and the twelfth capacitor C12 is connected in parallel to two ends of the eleventh capacitor C11. The embodiment further includes a thirteenth capacitor C13 and a fourteenth capacitor C14, where the thirteenth capacitor C13 is connected in parallel to two ends of the eighth capacitor C8, and the fourteenth capacitor C14 is connected in parallel to two ends of the fifth capacitor C5.
In this embodiment, the NFC controller may employ PN7120, which is a full NFC controller integrated with firmware, including communication protocols for read/write, peer-to-peer, and card emulation modes, and which also supports the type 1, 2, 3, 4, and 5 tags of the NFC forum, with the NFC Controller Interface (NCI) and rich types of support packages being easily integrated into OS (operating system) based systems, such as smart home and consumer applications, and other OS/RTOS environments.
As shown in fig. 4, the present embodiment further includes an NFC enabled interface circuit, where the NFC enabled interface circuit includes a field effect transistor Q, a seventh resistor R7, an eighth resistor R8, and a fifteenth capacitor C15, a gate of the field effect transistor Q is connected to a high level, a drain of the field effect transistor Q is connected to the high level after being connected to the seventh resistor R7 in series, a drain of the field effect transistor Q is connected to the NFC controller, a source of the field effect transistor Q is connected to an NFC enabled signal input terminal, one end of the eighth resistor R8 is connected to the source of the field effect transistor Q, the other end of the eighth resistor R8 is connected to the drain of the field effect transistor Q, one end of the fifteenth capacitor C.
In this embodiment, the NFC card swiping principle is as follows: the NFC card is close to the mark of the set-top box, the set-top box recognizes the encoded information of the NFC card, specifically, a reader-writer sends a group of electromagnetic waves with fixed frequency to an M1 card, an LC series resonance circuit is arranged in the card, the frequency of the LC series resonance circuit is the same as the frequency transmitted by the reader-writer, under the excitation of the electromagnetic waves, the LC resonance circuit generates resonance, so that charges are arranged in a capacitor, an electronic pump which is in one-way conduction is connected to the other end of the capacitor, the charges in the capacitor are transmitted to the other capacitor to be stored, when the accumulated charges reach 2V, the capacitor can be used as a power supply to provide working voltage for other circuits, and data in the card is transmitted out. The M1 card refers to the chip abbreviation from Enzhipu of Philips, a subsidiary company, and is commonly called NXP Mifare1 series, and has two models of S50 and S70.
It should be noted that, on the basis of knowing the circuit structure of the present invention, the selected model and parameter size can be obtained through continuous testing and debugging for those skilled in the art, and the implementation of the present invention is not affected, so the parameter selection of each component is not described herein.
As shown in fig. 5 and 6, in the NFC intelligent dialing system based on the set top box, the embodiment can implement video communication through the NFC intelligent dialing system, and the specific steps are as follows:
step 1: starting a communication application, selecting a contact to be bound and activating a binding button, wherein the contact information comprises an ID and/or a communication signal;
and 5: inquiring the information of the contact person bound by the card from the SQlite database of the local library of the communication application program according to the serial number of the NFC card obtained in the step 4, and prompting a user that the card is not bound with an account if the information of the contact person bound by the card is not matched; if the matching is successful, performing step 6;
step 6: and distinguishing a television terminal or a mobile phone terminal according to the communication signal of the NFC card, if the NFC card is the mobile phone terminal, automatically initiating video communication by using a communication cloud platform, and if the NFC card is the television terminal, automatically initiating video communication by using SIP + WebRTC.
In this embodiment, SIP is an application-layer signaling control protocol for creating, modifying, and releasing sessions of one or more participants, which may be similar to Internet multimedia conference, IP telephony, or multimedia distribution, and the participants of the sessions may communicate by multicast (multicast), mesh unicast (unicast), or a mixture of both; WebRTC is an abbreviation of Web Real-Time Communication, is a technology supporting a Web browser to perform Real-Time voice conversation or video conversation, realizes a Web-based video conference, is based on a WHATWG protocol, and aims to achieve Real-Time Communication capability by providing simple javascript through the browser. The principle of initiating video communication by SIP + WebRTC is as follows: the communication participants are positioned through signaling, the audio and video data are compressed and coded through an audio and video compression algorithm, then the audio and video data are packaged according to related protocols such as IP and the like, data packets are transmitted to a receiving place through an IP network, then the audio and video packets are concatenated, and the original audio and video signals are recovered after decoding and decompressing processing.
By adopting the system and the method, the binding of the NFC card can be quickly realized, the video communication is realized through dialing, and the user directly initiates a call to the bound user through an NFC card swiping mode, so that the video communication of the set top box is more convenient and intelligent, the pain that the old uses a set top box remote controller to dial a video phone for operation is complicated is solved, and the use of the old is facilitated. In addition, the invention can also carry out telephone dialing under the condition that the set-top box is started to operate but the television screen is not started, thereby enhancing the convenience experience of dialing the telephone by the user, ensuring the video communication experience based on the set-top box to be smoother and enlarging the scene application range of set-top box products.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (6)
1. A method for realizing video communication based on an NFC intelligent dialing system of a set top box is characterized in that the method for realizing video communication based on the NFC intelligent dialing system of the set top box comprises the following steps:
step 1: the user swipes the NFC card, the communication application reads the card serial number of the NFC card and inquires whether the card serial number is in a bound state, if not, the step 2 is carried out, otherwise, the step 3 is carried out;
step 2: writing the NFC card serial number and the selected contact information into an SQlite database of a local library of a communication application program, establishing a binding relationship between the NFC card serial number and the contact information, and performing step 3;
and step 3: initiating an NFC card communication request, wherein the specific process is as follows:
step 3-1: the set top box customizing android operating system starts monitoring an NFC event and acquires an NFC label from the request information according to the received request information, and reads an NFC card serial number from the NFC label;
step 3-2: according to the serial number of the NFC card obtained in the step 3-1, inquiring the information of the contact person bound by the NFC card from an SQlite database of a local library of a communication application program;
step 3-3: distinguishing a television terminal or a mobile phone terminal according to the card serial number of the NFC card, if the NFC card is the mobile phone terminal, automatically initiating a video communication request to a contact bound by the NFC card serial number by using a communication cloud platform, and if the NFC card is the television terminal, automatically initiating a video communication request to the contact bound by the NFC card serial number by using SIP + WebRTC;
still include a NFC intelligent dialing system based on STB, including NFC controller, clock interface circuit, antenna, host computer interface and power source, the clock interface circuit passes through the access of the outside clock input of NFC controller the NFC controller, the antenna pass through antenna matching circuit with the NFC controller is connected, the host computer interface with the NFC controller is connected, power source with the NFC controller is connected.
2. The method for realizing video communication of the NFC intelligent dialing system based on the set-top box according to claim 1, wherein the specific process of the step 1 is as follows:
step 1-1: starting a communication application, selecting a contact to be bound and activating a binding button, wherein the contact information comprises an ID and/or a communication signal;
step 1-2, opening a card swiping guidance interface program, using an NFC adapter to promote the NFC card swiping event processing priority of a guidance interface, and after a user swipes a card, sending request information to the guidance interface program by an android operating system, wherein the request information carries an NFC label;
and 1-3, the communication application acquires the NFC tag from the request information, reads the NFC card serial number from the NFC tag, writes the NFC card serial number and the contact information into an SQlite database of the communication application program, and establishes a binding relationship.
3. The method of claim 1, wherein the clock interface circuit comprises a crystal oscillator Y, a first capacitor C1 and a second capacitor C2, a first pin and a third pin of the crystal oscillator Y are respectively and correspondingly connected to one ends of the first capacitor C1 and the second capacitor C2, the other ends of the first capacitor C1 and the second capacitor C2 are grounded, the first pin and the third pin of the crystal oscillator Y are respectively connected to an external clock input terminal of an NFC controller, and a second pin and a fourth pin of the crystal oscillator Y are grounded.
4. The method according to claim 1, wherein the antenna matching circuit includes a first inductor L1, a second inductor L2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11, and a twelfth capacitor C12, one end of each of the first inductor L1 and the second inductor L2 is connected to the NFC controller, the other end of each of the first inductor L1 and the second inductor L2 is connected to the NFC controller through a sixth capacitor C2 and a seventh capacitor C2 which are connected in series, and the sixth capacitor C2 and the seventh capacitor C2 are connected to the ground; the fifth capacitor C5 is connected in series with the third capacitor C3 and then connected in parallel to two ends of the sixth capacitor C6; the third resistor R3, the first resistor R1 and the second resistor R2 are sequentially connected in series and then connected in parallel at two ends of the fifth capacitor C5; one end of the fifth capacitor C5 is connected with the third resistor R3, and the other end of the fifth capacitor C5 is connected with the second resistor R2; the eighth capacitor C8 is connected in series with the eleventh capacitor C11 and then connected in parallel to two ends of the seventh capacitor C7, the fourth resistor R4, the sixth resistor R6 and the fifth resistor R5 are sequentially connected in series and then connected in parallel to two ends of the eighth capacitor C8, one end of the eighth capacitor C8 is connected with the fourth resistor R4, and the other end of the eighth capacitor C8 is connected with the fifth resistor R5; one end of the fourth capacitor C4 is connected to the serial connection point of the first resistor R1 and the second resistor R2, and the other end of the fourth capacitor C4 is connected to the NFC controller; one end of the ninth capacitor C9 is connected to the serial connection point of the fifth resistor R5 and the sixth resistor R6, and the other end of the ninth capacitor C9 is connected to the NFC controller; the tenth capacitor C10 is connected in parallel to two ends of the third capacitor C3, and the twelfth capacitor C12 is connected in parallel to two ends of the eleventh capacitor C11.
5. The method for realizing video communication through the NFC smart dialing system based on the set top box as claimed in claim 4, further comprising a thirteenth capacitor C13 and a fourteenth capacitor C14, wherein the thirteenth capacitor C13 is connected in parallel across an eighth capacitor C8, and the fourteenth capacitor C14 is connected in parallel across a fifth capacitor C5.
6. The method for realizing video communication of the NFC smart dialing system based on the set top box according to claim 4, further comprising an NFC enabled interface circuit, wherein the NFC enabled interface circuit includes a field effect transistor Q, a seventh resistor R7, an eighth resistor R8, and a fifteenth capacitor C15, a gate of the field effect transistor Q is connected to a high level, a drain of the field effect transistor Q is connected to a high level after being connected to the seventh resistor R7 in series, the drain of the field effect transistor Q is connected to the NFC controller, a source of the field effect transistor Q is connected to the NFC enabled signal input terminal, one end of the eighth resistor R8 is connected to the source of the field effect transistor Q, the other end of the eighth capacitor C15 is connected to the drain of the field effect transistor Q, and the other end of the fifteenth capacitor C15 is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710329016.0A CN107124574B (en) | 2017-05-11 | 2017-05-11 | NFC intelligent dialing system based on set top box and method for realizing video communication |
Applications Claiming Priority (1)
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| CN201710329016.0A CN107124574B (en) | 2017-05-11 | 2017-05-11 | NFC intelligent dialing system based on set top box and method for realizing video communication |
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| CN202918417U (en) * | 2012-11-28 | 2013-05-01 | 青岛海信宽带多媒体技术有限公司 | Video conversation system based on Android set top box |
| CN103813211A (en) * | 2013-07-26 | 2014-05-21 | 上海帕科软件科技有限公司 | IPTV-based video communication system |
| CN203859838U (en) * | 2013-12-27 | 2014-10-01 | 乐视致新电子科技（天津）有限公司 | Intelligent television |
| DE202015100430U1 (en) * | 2015-01-21 | 2015-03-09 | Coremate Technical Co., Ltd. | Smart TV with a built-in phone |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202918417U (en) * | 2012-11-28 | 2013-05-01 | 青岛海信宽带多媒体技术有限公司 | Video conversation system based on Android set top box |
| CN103813211A (en) * | 2013-07-26 | 2014-05-21 | 上海帕科软件科技有限公司 | IPTV-based video communication system |
| CN203859838U (en) * | 2013-12-27 | 2014-10-01 | 乐视致新电子科技（天津）有限公司 | Intelligent television |
| DE202015100430U1 (en) * | 2015-01-21 | 2015-03-09 | Coremate Technical Co., Ltd. | Smart TV with a built-in phone |
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