CN102036112B - Digital television terminal and use method of Internet Protocol Television business thereof - Google Patents

Abstract

The invention provides a digital TV terminal and a method for using the IPTV service thereof. The method includes: after starting up, detecting whether there is a smart card in the smart card control unit of the digital TV terminal; Network configuration parameters; according to the network address access mode corresponding to the network address access mode flag of the network configuration parameters, obtain the network address required by the IPTV service of the digital TV terminal. The present invention stores network configuration parameters, IPTV service parameters, etc. on the smart card, obtains the network address by reading the information stored in the smart card, realizes service authentication, and then accesses the IPTV service management platform, avoiding inputting parameters through the remote controller Moreover, when multiple users share a digital TV terminal, only the smart card needs to be replaced, and at the same time, it is compatible with the startup method without a smart card, which makes the digital TV terminal more versatile and more flexible in application.

Description

Digital TV terminal and method for using the Internet protocol TV service thereof

technical field

The present invention relates to the field of Internet protocol television (Internet Protocol Television, IPTV) business technology, in particular to a digital TV terminal and a method for using the IPTV business.

Background technique

At present, when installing and using IPTV services, telecom installers or users need to use a remote controller to input IPTV service network configuration information, IPTV service-related parameters, etc. to digital TV terminals. After the digital TV terminal receives the information input by the user, it stores it in the local flash memory (Flash). After service authentication, access to the IPTV service management platform.

However, the above method has the following problems: inputting network configuration information, service-related parameters, etc. through the remote control is slow and error-prone; when multiple users need to use the same digital TV terminal, each user must reuse All digital TV terminals need to re-enter their business-related parameters, because each digital TV terminal can only save relevant parameters of one user at present; especially, when a digital TV terminal fails and needs to be replaced, it will also face the need to re-enter the network Problems such as configuration information; due to the differences in service authentication of different operators, service authentication is performed through digital TV terminals, which greatly limits the versatility of digital TV terminals.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a digital TV terminal and a method for using the IPTV service thereof, so as to realize the flexible use of the digital TV terminal.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

A method for a digital television terminal Internet protocol television IPTV service, said method comprising the steps of:

After starting up, detect whether there is a smart card in the smart card control unit of the digital TV terminal;

When detecting that there is a smart card, read the pre-stored network configuration parameters in the smart card;

According to the network address access mode corresponding to the network address access mode flag bit of the network configuration parameter, the network address required by the IPTV service of the digital TV terminal is obtained.

Further, the method further includes: storing network configuration parameters in the smart card in advance.

Further, the method further includes: storing IPTV service parameters in the smart card in advance;

Correspondingly, after obtaining the required network address of the digital TV terminal IPTV service, it also includes:

Read the IPTV service management platform address and service account of the IPTV service parameters pre-stored in the smart card, and send a user service authentication request to the IPTV service management platform according to the IPTV service management platform address;

Receiving the parameters returned by the IPTV service management platform according to the user service authentication request, and sending the parameters required for service authentication to the smart card;

The smart card runs a service authentication algorithm, and sends the obtained service authentication value to the IPTV service management platform through the digital TV terminal.

Further, the smart card running service authentication algorithm specifically includes: using the service password of the IPTV service parameters pre-stored in the smart card as an encryption key to encrypt and calculate the parameters required for the received service authentication.

Further, the method further includes: storing the network configuration parameters and IPTV service parameters in the flash memory Flash;

Correspondingly, after detecting whether the smart card exists, the method further includes: reading the network address access mode flag bit stored in the Flash when no smart card is detected.

Further, according to the network address access mode corresponding to the network address access mode flag bit, the network address required for obtaining the IPTV service of the digital TV terminal is specifically:

When the network address access mode corresponding to the network address access mode flag bit is static IP, read the IP address stored in advance or Flash storage in the smart card as the required network address;

When the network address access mode corresponding to the network address access mode flag bit is a dynamic host setting protocol DHCP and does not require authentication, obtain a dynamic IP address from the network side as a required network address;

When the network address access mode corresponding to the network address access mode flag bit is dynamic DHCP and requires authentication, read the DHCP user name and password stored in advance or Flash storage in the smart card, and perform authentication, when When the authentication is passed, obtain a dynamic IP address from the network side as the required network address;

When the network address access mode corresponding to the network address access mode flag bit is the point-to-point protocol PPPoE on the Ethernet, read the PPPoE user name and password stored in advance or Flash storage in the smart card, and perform Authentication, when the authentication is passed, the dynamic IP address is obtained as the required network address through the Asymmetric Digital Subscriber Loop ADSL dial-up mode.

A digital television terminal, said digital television terminal comprising: a smart card control unit, a detection unit, and a network address acquisition unit; wherein,

The detection unit is used to detect whether there is a smart card in the smart card control unit after starting up;

The network address acquisition unit is used to read the pre-stored network configuration parameters in the smart card when detecting the presence of the smart card; and according to the network address access mode corresponding to the network address access mode flag bit of the network configuration parameters, Obtain the network address required by the IPTV service of the digital TV terminal.

Further, the smart card is used to store network configuration parameters and IPTV service parameters;

Correspondingly, the digital TV terminal also includes a service authentication unit, which is used to read the IPTV service management platform address and service account of the IPTV service parameters pre-stored in the smart card, and send the IPTV service management platform address to the The IPTV service management platform sends a user service authentication request; the IPTV service management platform sends the parameters required for service authentication returned by the user service authentication request to the smart card;

The smart card is specifically used to run a service authentication algorithm, and send the obtained service authentication value to the IPTV service management platform through the service authentication unit.

Further, the smart card is specifically configured to use its pre-stored service password of IPTV service parameters as an encryption key to encrypt and calculate received parameters required for service authentication to obtain a service authentication value.

Further, the digital TV terminal also includes Flash, which is used to store the network configuration parameters and IPTV service parameters;

Correspondingly, the network address acquisition unit is specifically configured to read the network address access mode flag bit stored in the Flash when the detection unit detects that the smart card control unit does not have a smart card.

Further, the network address acquisition unit is specifically configured to read the IP address pre-stored in the smart card or stored in Flash when the network address access mode corresponding to the network address access mode flag bit is static IP As the required network address; when the network address access method corresponding to the network address access mode flag bit is dynamic DHCP and does not require authentication, obtain the dynamic IP address from the network side as the required network address; when the When the network address access mode corresponding to the network address access mode flag bit is dynamic DHCP and requires authentication, read the DHCP user name and password stored in advance in the smart card or Flash storage, and perform authentication. , obtain a dynamic IP address from the network side as the required network address; when the network address access mode corresponding to the network address access mode flag is PPPoE, read the pre-stored or Flash storage PPPoE user name, password, and authentication, when the authentication is passed, obtain a dynamic IP address through ADSL dial-up as the required network address.

In the present invention, network configuration parameters and IPTV service-related parameters are stored on the smart card, and the digital TV terminal obtains the network address by reading the information stored in the smart card, runs the service authentication algorithm through the smart card, realizes service authentication, and then accesses the IPTV The business management platform avoids the slow speed and error-prone problems caused by inputting parameters through the remote control, and when multiple users share a digital TV terminal, they only need to replace their respective smart cards, and the digital TV terminal is still compatible. The activation method of the smart card makes the digital TV terminal more versatile and more flexible in application.

Description of drawings

Fig. 1 is a schematic diagram of a frame structure of a digital television terminal of the present invention;

Fig. 2 is the file system structure diagram of STB-SIM card in the IPTV service of the present invention;

FIG. 3 is a schematic flow diagram of an embodiment of a method for using a digital television terminal IPTV service according to the present invention;

Fig. 4 is the schematic flow chart of the authentication embodiment of digital TV terminal IPTV service of the present invention;

FIG. 5 is a schematic diagram of a specific structure of a digital TV terminal according to the present invention.

Detailed ways

The basic idea of the present invention is: after starting up, detect whether there is a smart card in the smart card control unit of the digital TV terminal; when detecting the presence of a smart card, read the pre-stored network configuration parameters in the smart card; according to the network configuration parameters The network address access mode corresponding to the network address access mode flag bit, and obtain the network address required by the IPTV service of the digital TV terminal.

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

In the past, the network configuration parameters and IPTV service-related parameters of the digital TV terminal were directly stored in the Flash of the digital TV terminal. After the digital TV terminal was turned on, it directly read the corresponding network configuration parameters and IPTV service parameters and other information from the Flash configuration partition. , Complete the access and authentication with the IPTV service management platform. Fig. 1 shows the frame structure schematic diagram of the digital television terminal provided by the present invention, as shown in Fig. 1, store network configuration parameter and IPTV business related parameter in the smart card, when the digital television terminal 10 detects that the smart card control unit 11 has a smart card , by reading and writing the smart card, the access and authentication with the IPTV business management platform, and the storage of other information, etc. are realized; at the same time, in order to consider the compatibility with the existing digital TV terminals without smart cards, the digital TV terminal 10 does not detect When accessing the smart card, obtain information such as network configuration parameters and IPTV service-related parameters from the original Flash 15 configuration partition, realize access and authentication with the IPTV service management platform, and store other information.

In the embodiment of the present invention, described smart card can be customer identification unit (Subscriber IdentityModule, SIM) card, and SIM card is a kind of smart chip card with processor, and the system structure of SIM card is specifically described below:

1. Structure and type

SIM card includes: central processing unit CPU, program memory (ROM), working memory (RAM), data memory (EPROM or EEPROM or Flash), serial communication unit and encryption unit, etc.

In actual use, SIM cards usually have two categories with the same function but different forms:

1) ID-1SIM, a card-type SIM card (commonly known as a large card), the size is 54mm*35mm, which is the same size as a credit card. This form of SIM card complies with the relevant IC card International Organization for Standardization/International Electrotechnical Commission ISO/IEC 7816-1 , 2 (ISO/IEC 7816-1, 2) standard, similar to IC card;

2) Plug-in SIM, an embedded SIM card (commonly known as a small card), its size is only 25mm*15mm, and it is a card that is semi-permanently loaded into a mobile device. For example, the SIM card used by a mobile phone user in a mobile device is For the embedded SIM card.

2. Stored data

The data stored in the SIM card can be divided into four categories:

1) Fixedly stored data: This type of data is written by the SIM card center of the operator before the card is sold, such as the International Mobile Subscriber Identity (IMEI), authentication key (KI), authentication and encryption algorithms, etc.

In the present invention, the service password separated into the SIM card can be stored with an authentication key (KI), and the authentication and encryption algorithm is transplanted to the original service authentication algorithm in the digital TV terminal.

2) Temporarily stored network-related data: such as Location Area Identity (LAI), Temporary Mobile Subscriber Identity (TMSI), codes of prohibited public telephone networks, etc.

3) Related business codes: such as personal identification number (PIN), unlock code (PUK), billing rate, etc.

4) Telephone directory: This is a mobile device such as a mobile phone user can input phone numbers at any time.

3. Electrical interface

A SIM card generally has 8 contacts, and usually mobile devices such as digital TV terminals require 6 of them. For specific definitions, refer to Table 1:

Table 1

Contact definition meaning C1 Vcc supply voltage C2 RST reset signal C3 CLK clock signal C4 N/A reserve C5 GND ground C6 Vpp programming voltage C7 I/O Data input/output C8 N/A reserve

4. Electrical characteristics and transmission protocol

The SIM card is powered by an external device such as a digital TV terminal, and its electrical signal and transmission protocol need to be consistent with the International Organization for Standardization/International Electrotechnical Commission 7816-3 (ISO/IEC 7816-3), and asynchronous half-duplex characters are used in the protocol The transmission protocol adopts multiple sampling and judgment methods for each data, which improves the anti-interference ability of the interface, and is based on the character frame error detection and retransmission mechanism, so the efficiency can be greatly improved.

In the embodiment of the present invention, the pre-stored parameters of the smart card of the digital TV terminal include network configuration parameters and IPTV service related parameters;

Among them, the network configuration parameters include: network address access mode flag, static IP address parameters, Dynamic Host Configuration Protocol (Dynamic Host Configuration Protocol, DHCP) parameters and Point-to-Point Protocol over Ethernet (Point-to-Point Protocol over Ethernet) , PPPoE) parameters, etc.;

The network address access methods corresponding to the network address access flag include: static IP, dynamic DHCP without authentication, dynamic DHCP with authentication and PPPoE, etc. Static IP address parameters include: IP address, mask, gateway, Domain Name System (Domain Name System, DNS) address, etc.; DHCP parameters specifically include: DHCP username and password, etc.; PPPoE parameters specifically include: PPPoE username and password, etc.

The parameters related to the IPTV service include: the address of the IPTV service management platform, the service account number, and the service password.

The software characteristics of the SIM card of the digital TV terminal in the present invention are to expand on the basis of the file system of the SIM card of the mobile terminal such as mobile phones, so that it can support IPTV services. Preferably, the digital TV terminal in the present invention can be a set-top box ( Set Top Box, STB), at this time the smart card of STB is STB-SIM card; STB-SIM card can adopt new single-chip microcomputer and memory management structure to enhance its processing function.

Among them, the file system of the STB-SIM card is shown in Figure 2. Each rectangular box in Figure 2 represents a file, which mainly includes MF (Master File), DF (Dedicated File) and EF (Elementary File). MF can be regarded as a root directory, DF is a folder, and EF is a specific application file in a folder. In actual operation, before selecting all EFs, the DFs of these EFs must be selected, and all selections are made by using file identifiers. The file identifiers include: 3F: main file; 7F: first-level special file; 5F: second-level special file; 2F: basic file under the main file; 6F: basic file under the first-level special file; 4F: Basic files, etc. under the second layer of dedicated files.

The file consists of a file header (header) and an optional file body (body) for internal management of the SIM card. The information in the file header includes the structure and attributes of the file, which can be obtained by using the GET RESPONSE or STATUS command. This information is fixed in the management stage, and the file body includes the data of the file.

For the storage of files in the STB-SIM card in the embodiment of the present invention, refer specifically to FIG. 2 . The bold rectangular frame in FIG. The EF files of IPTV are all stored in DFIPTV (7FD1) on the first layer; 6 related EF files are added under DFIPTV:

EFNETWORK (6F01): network address access mode flag, including static IP, DHCP (authentication not required), DHCP (authentication required), PPPoE, etc.;

EFSIPA(6F02): Static IP address parameters, including IP, mask, gateway, DNS address, etc.;

EFPPPoE(6F03): PPPoE parameters, including PPPoE user name, password, etc.;

EFDHCP (6F04): DHCP parameters, including DHCP user name, password, etc.;

EFSMPA(6F05): IPTV service management platform address;

EFISNM (6F06): IPTV service account.

Fig. 3 shows the schematic flow chart of the embodiment of the method for using the digital TV terminal IPTV service of the present invention, as shown in Fig. 3, described embodiment comprises the following steps:

Step 101, after the digital TV terminal is turned on, detect whether there is a smart card in its smart card control unit, if it exists, then perform step 103, otherwise, perform step 102;

When the user needs to use the IPTV service, the smart card can be inserted into the smart card control unit, and the smart card stores the user's network configuration information, IPTV service related parameters, etc., and the smart card control unit reads the information stored in the smart card through the C7 contact of the smart card, The meaning of the smart card contacts can refer to Table 1.

The process of specifically detecting whether the smart card exists is as follows: when the smart card is a large card, the card insertion position of the digital TV terminal has a card holder, and at this time, the digital TV terminal can detect whether there is a smart card in the smart card control unit mechanically. There are two contacts of high level and low level on the card tray, the smart card control unit is connected to the high level contact, when the smart card is not inserted, the two contacts are in a closed state, and the digital TV terminal detects that the smart card control unit is low level signal, it is determined that there is no smart card; when the smart card is inserted, the two contacts are separated, and the digital TV terminal detects that the smart card control unit is a high-level signal, and it is determined that there is a smart card;

When the smart card is a small card, the digital TV terminal detects whether there is a smart card in the smart card control unit by reading the data of the smart card: the smart card control unit is connected to the C7 contact of the smart card, and the digital TV terminal performs multiple consecutive operations through the smart card control unit. In the data reading operation, if no data is read, it is determined that there is no smart card, otherwise it is determined that there is a smart card; preferably, the digital TV terminal can continuously perform 3 data reading operations.

Step 102, the digital TV terminal starts without a smart card, reads the network configuration parameters stored in the local Flash, and obtains the required network address for the IPTV service according to the network address access mode flag in the network configuration parameters;

Specifically, when the network address access mode corresponding to the network address access mode flag bit is static IP, read the IP address stored in the Flash as the required network address;

When the network address access mode corresponding to the network address access mode flag bit is dynamic DHCP and does not require authentication, obtain a dynamic IP address from the network side as the required network address;

When the network address access mode corresponding to the network address access mode flag bit is dynamic DHCP and requires authentication, read the DHCP user name and password stored in the Flash, and perform authentication, and when the authentication is passed, obtain from the network side Dynamic IP address as the required network address;

When the network address access mode corresponding to the network address access mode flag bit is PPPoE, read the PPPoE user name and password stored in the Flash, and authenticate, and when the authentication is passed, pass through the asymmetric digital subscriber loop ( Asymmetric Digital Subscriber Line, ADSL) dial-up method to obtain a dynamic IP address as the required network address.

Step 103, when detecting that there is a smart card, the digital TV terminal reads the pre-stored network configuration parameters in the smart card;

In this step, the digital TV terminal specifically reads the network address access mode flag of the pre-stored network configuration parameters in the smart card, wherein the network address access mode corresponding to the network address access mode flag includes static IP, Dynamic DHCP without authentication, dynamic DHCP with authentication and PPPoE;

Specifically, when the network address access mode corresponding to the network address access mode flag read by the digital television terminal is static IP, perform step 104; when the network address access mode corresponding to the network address access mode flag is dynamic When DHCP and authentication is required, perform step 105; when the network address access mode corresponding to the network address access mode flag is dynamic DHCP and does not require authentication, perform step 106; when the network address access mode flag corresponds to the network address When the access mode is PPPoE, go to step 107.

Step 104, the digital TV terminal reads the pre-stored IP address in the smart card as the required network address of the IPTV service, and then executes step 109;

Step 105, the digital TV terminal reads the pre-stored DHCP user name and password in the smart card, and performs authentication, and when the authentication is passed, execute step 106, otherwise, end the process;

Step 106, the digital TV terminal obtains a dynamic IP address from the network side as the required network address of the IPTV service, and executes step 109;

Step 107, the digital TV terminal reads the PPPoE user name and password pre-stored in the smart card, and performs authentication, and when the authentication is passed, executes step 108, otherwise, ends the process;

Step 108, the digital TV terminal obtains the dynamic IP address as the required network address of the IPTV service through the ADSL dial-up mode, and executes step 109;

Step 109, the digital TV terminal saves the network configuration parameters in the local Flash, so as to be compatible with the startup mode when the smart card does not exist;

Step 110, the digital TV terminal enters a service authentication process.

Fig. 4 shows the schematic flow chart of the authentication embodiment of digital TV terminal IPTV service of the present invention, as shown in Fig. 4, described embodiment comprises the following steps:

Step 1, after the digital TV terminal obtains the required network address of its IPTV service, read the IPTV service management platform address and the service account number of the IPTV service parameter stored in advance in the smart card;

In this step, the digital TV terminal also saves the IPTV service management platform address and service account of the IPTV service parameters in the local Flash, so as to be compatible with the startup mode when the smart card does not exist. Generally, for security considerations, the service password in the IPTV service-related parameters is not allowed to be read from the smart card, so it is not stored locally. When the digital TV terminal starts without the smart card, the user needs to Enter its business password information.

Step 2: After the smart card receives the read information from the digital TV terminal, it returns the stored IPTV service management platform address and service account number to the digital TV terminal;

Step 3, the digital TV terminal sends a user service authentication request to the IPTV service management platform through the HTTP Get mode in the Hyper Text Transfer Protocol (Hyper Text Transfer Protocol, HTTP) according to the address of the IPTV service management platform, which is also called a user authentication request;

In this step, the user authentication request includes parameters such as a business account number.

Step 4, the IPTV service management platform randomly generates the required parameters of the service authentication algorithm;

Specifically, the Encry Token field is one of the parameters required by the business authentication algorithm;

Step 5, the IPTV service management platform returns the required parameters of the service authentication algorithm to the digital TV terminal in the form of an HTTP response;

Steps 6-7, the digital TV terminal receives the required parameters of the service authentication algorithm returned by the IPTV service management platform, and sends the required parameters of the service authentication to the smart card;

Preferably, the digital TV terminal can form a parameter string with the acquired parameters required for service authentication, and send it to the smart card in the form of the formed parameter string;

In this step, the parameters required for service authentication include: digital TV terminal ID, user account, MAC address, Encry Token field, etc.; for example: the parameter string of the required parameters can be formed as follows: Random+"$"+EncryToken+" $"+UserID+"$"+STBID+"$"+IP+"$"+MAC+"$"+Reserved+"$"+"CTC".

Steps 8-9, the smart card runs the pre-stored service authentication algorithm, and uploads the calculated service authentication value, that is, the authentication string, to the digital TV terminal;

Specifically, the smart card uses the service password of its pre-stored IPTV service parameters as an encryption key to encrypt and calculate the parameter string of the parameters required for the received service authentication, and the obtained service authentication value is the authentication string, and Upload it to the digital TV terminal.

Step 10, the digital TV terminal uploads the authentication character string to the IPTV service management platform by means of an HTTP Post request;

Steps 11-12, the IPTV service management platform verifies the received authentication character string, when the received authentication character string is the same as the service authentication value calculated by the IPTV service management platform itself, it is determined that the authentication is passed, and when the authentication is passed , the successful authentication result is returned in the form of an HTTP response.

FIG. 5 shows the specific structure of the digital TV terminal of the present invention. As shown in FIG. 5 , the digital TV terminal 10 includes a smart card control unit 11 , a detection unit 12 and a network address acquisition unit 13 . Among them, the detection unit 12 is used to detect whether there is a smart card in the smart card control unit 11 after the digital TV terminal 10 is turned on; configuration parameters; and according to the network address access mode corresponding to the network address access mode flag bit of the network configuration parameter, obtain the network address required by the IPTV service of the digital TV terminal 10.

Further, the smart card is used to store network configuration parameters and IPTV service parameters; correspondingly, the digital TV terminal 10 also includes a service authentication unit 14, which is used to read the IPTV service parameters of the pre-stored IPTV service parameters in the smart card. Service management platform address and service account number, and according to the address of the IPTV service management platform, send a user service authentication request to the IPTV service management platform 20; The parameters required for authentication are sent to the smart card; the smart card is specifically used to run a service authentication algorithm, and send the obtained service authentication value to the IPTV service management platform 20 through the service authentication unit 14 .

Further, the smart card is specifically configured to use its pre-stored service password of IPTV service parameters as an encryption key to encrypt and calculate received parameters required for service authentication to obtain a service authentication value.

Further, the digital television terminal 10 also includes Flash 15, which is used to store the network configuration parameters and IPTV service parameters;

Correspondingly, the network address acquisition unit 13 is specifically used to read the network address access mode flag stored by the Flash 15 when the detection unit 12 detects that the smart card control unit 11 does not have a smart card.

Further, the network address acquisition unit 13 is specifically used to read the pre-stored or Flash 15 stored in the smart card when the network address access mode corresponding to the network address access mode flag bit is static IP. The IP address is used as the required network address; when the network address access method corresponding to the network address access mode flag bit is dynamic DHCP and does not require authentication, obtain the dynamic IP address from the network side as the required network address; When the network address access mode corresponding to the network address access mode flag bit is dynamic DHCP and requires authentication, read the DHCP user name and password stored in advance in the smart card or Flash15, and authenticate, when When the authentication is passed, obtain the dynamic IP address from the network side as the required network address; when the network address access mode corresponding to the network address access mode flag bit is PPPoE, read the pre-stored or The PPPoE user name and password stored in Flash 15 are authenticated, and when the authentication is passed, the dynamic IP address is obtained through ADSL dial-up as the required network address.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (11)

1. a method for digital television terminal Internet protocol television IPTV service, it is characterized in that, described method comprises the following steps: After starting up, detect whether there is a smart card in the smart card control unit of the digital TV terminal; The method for detecting whether there is a smart card in the smart card control unit of the digital TV terminal is as follows: when the smart card is a large card and no smart card is inserted, the card holder at the card insertion position of the digital TV terminal has high and low levels When the two contacts of the smart card are closed, the digital TV terminal detects that the smart card control unit is a low-level signal, and it is determined that there is no smart card; when the smart card is inserted, the two contacts are separated, and the digital TV terminal detects that the smart card control unit is a high-level signal. Ping signal, it is determined that there is a smart card; When the smart card is a small card, the smart card control unit is connected to the C7 contact of the smart card, and the digital TV terminal continuously performs at least one data reading operation through the smart card control unit. If no data is read, it is determined that there is no smart card, otherwise Determine that the smart card exists; the C7 contact refers to the data input/output interface; When detecting that there is a smart card, read the pre-stored network configuration parameters in the smart card; According to the network address access mode corresponding to the network address access mode flag bit of the network configuration parameter, obtain the required network address of the digital TV terminal IPTV service, save the network configuration parameter in the FLASH, and read the smart card The pre-stored IPTV service parameters enter the service authentication process, and save the IPTV service parameters in FLASH; When detecting that there is no smart card, read the pre-stored or saved network configuration parameters and IPTV service parameters in the FLASH to obtain the required network address and service authentication process. 2. The method according to claim 1, characterized in that the method further comprises: The network configuration parameters are stored in the smart card in advance. 3. The method according to claim 1, further comprising: storing IPTV service parameters in the smart card in advance; Correspondingly, after obtaining the required network address of the digital TV terminal IPTV service, it also includes: Read the IPTV service management platform address and service account of the IPTV service parameters pre-stored in the smart card, and send a user service authentication request to the IPTV service management platform according to the IPTV service management platform address; Receiving the parameters returned by the IPTV service management platform according to the user service authentication request, and sending the parameters required for service authentication to the smart card; The smart card runs a service authentication algorithm, and sends the obtained service authentication value to the IPTV service management platform through the digital TV terminal. 4. The method according to claim 3, wherein the smart card operation service authentication algorithm is specifically: using the service password of the pre-stored IPTV service parameter in the smart card as an encryption key to authenticate the received service The required parameters for encrypted calculations. 5. The method according to any one of claims 1 to 4, characterized in that, after the detection of whether the smart card exists, it also includes: When detecting that there is no smart card, read the network address access mode flag bit stored in the FLASH. 6. The method according to claim 5, wherein, according to the network address access mode corresponding to the network address access mode flag bit, the network address required for the IPTV service of the digital TV terminal is obtained. for: When the network address access mode corresponding to the network address access mode flag bit is static IP, read the IP address stored in advance or FLASH storage in the smart card as the required network address; When the network address access mode corresponding to the network address access mode flag bit is a dynamic host setting protocol DHCP and does not require authentication, obtain a dynamic IP address from the network side as a required network address; When the network address access mode corresponding to the network address access mode flag bit is dynamic DHCP and requires authentication, read the DHCP user name and password stored in advance in the smart card or FLASH storage, and perform authentication. When the authentication is passed, obtain a dynamic IP address from the network side as the required network address; When the network address access mode corresponding to the network address access mode flag bit is the point-to-point protocol PPPoE on the Ethernet, read the PPPoE user name and password stored in advance in the smart card or FLASH storage, and perform Authentication, when the authentication is passed, the dynamic IP address is obtained as the required network address through the Asymmetric Digital Subscriber Loop ADSL dial-up mode. 7. A digital television terminal, characterized in that the digital television terminal comprises: a smart card control unit, a detection unit and a network address acquisition unit; wherein, The detection unit is used to detect whether there is a smart card in the smart card control unit after starting up; The detection unit is specifically used to detect that when the smart card is a large card and the smart card is not inserted, the two contacts with high and low levels on the card holder at the card insertion position of the digital TV terminal are in a closed state. When the smart card control unit is a low-level signal, it is determined that there is no smart card; when the smart card is inserted, the two contacts are separated, and it is detected that the smart card control unit is a high-level signal, and it is determined that there is a smart card; when the smart card is a small card, the smart card The control unit is connected to the C7 contact of the smart card, and the smart card control unit continuously performs at least one data reading operation. If no data is read, it is determined that there is no smart card, otherwise it is determined that the smart card exists; the C7 contact refers to data input /Output Interface; The network address acquisition unit is used to read the pre-stored network configuration parameters in the smart card when detecting the presence of the smart card; and according to the network address access mode corresponding to the network address access mode flag bit of the network configuration parameters, Obtain the required network address of the digital TV terminal IPTV service, save the network configuration parameters in the FLASH, read the pre-stored IPTV service parameters in the smart card to enter the service authentication process, and save the IPTV service parameters in the FLASH; When it is detected that there is no smart card, read the network configuration parameters and IPTV service parameters pre-stored in the FLASH or the above-mentioned preservation, and obtain the required network address and service authentication process. 8. The digital television terminal according to claim 7, wherein the smart card is used for storing network configuration parameters and IPTV service parameters; Correspondingly, the digital TV terminal also includes a service authentication unit, which is used to read the IPTV service management platform address and service account of the IPTV service parameters pre-stored in the smart card, and send the IPTV service management platform address to the The IPTV service management platform sends a user service authentication request; the IPTV service management platform sends the parameters required for service authentication returned by the user service authentication request to the smart card; The smart card is specifically used to run a service authentication algorithm, and send the obtained service authentication value to the IPTV service management platform through the service authentication unit. 9. The digital television terminal according to claim 8, wherein the smart card is specifically used to use the service password of its pre-stored IPTV service parameters as an encryption key to obtain parameters required for the received service authentication. Encryption calculation is performed to obtain the service authentication value. 10. The digital television terminal according to claim 8, wherein the network address acquiring unit is specifically configured to read the network address stored in the FLASH when the detection unit detects that the smart card control unit does not have a smart card Access mode flag. 11. The digital television terminal according to any one of claims 7 to 10, wherein the network address obtaining unit is specifically configured to: when the network address access mode corresponding to the network address access mode flag bit is When static IP, read the IP address stored in advance or FLASH storage in the smart card as the required network address; when the network address access mode corresponding to the network address access mode flag bit is dynamic DHCP and does not need During authentication, obtain the dynamic IP address from the network side as required network address; Stored or FLASH stored DHCP user name, password, and authenticate, when the authentication is passed, obtain the dynamic IP address from the network side as the required network address; when the network address corresponding to the network address access mode flag bit When the access mode is PPPoE, read the PPPoE user name and password stored in advance or FLASH in the smart card, and perform authentication, and when the authentication is passed, obtain the dynamic IP address as the required network address through the ADSL dial-up mode.