CN101820498A - Two-way set-top box-based digital household weather forecast query system - Google Patents

Abstract

The embodiment of the present invention discloses a digital family weather forecast query system based on a two-way set-top box, comprising: a two-way set-top box for receiving a weather forecast query request input by a user based on the T9 input method, and sending the weather forecast query request to the weather forecast Query server; After receiving the scene description file SDF sent by the weather forecast query server according to the weather forecast query request, analyze the SDF by the SDF parser SDF PLAYER, and display the resolved SDF content to the user's TV client; weather Forecast query server, call RMI by remote method to inquire relevant weather forecast information in weather forecast information server according to described weather forecast query request, send described weather forecast information to two-way set-top box by SDF; Weather forecast information server, be used for storing related Weather forecast content information. By implementing the present invention, users can realize weather forecast inquiry through digital television, which satisfies user requirements.

Description

A Digital Home Weather Forecast Inquiry System Based on Two-way Set-Top Box

technical field

The invention belongs to the field of information technology, and in particular relates to a digital family weather forecast query system based on a two-way set-top box.

Background technique

With the development of information technology with digital technology as the core, technologies such as digital home have been born. At present, digital TV has been widely used in movies on demand, instant chat, e-government, telemedicine, smart home and other services that are closely related to people's lives.

Digital TV technology and functions are changing with each passing day. Digital TV set-top boxes or digital TVs with built-in set-top box functions are constantly developing, with more and more hardware support and more and more powerful functions. And with the continuous development of digital TV hardware equipment and software systems, the application fields of digital TV are becoming more and more extensive, and the functions tend to meet various needs of users. The current two-way set-top box can meet the interactive needs of users according to user needs, but the current digital TV system does not provide a complete technology for users to facilitate users to query relevant weather forecast information through the digital TV system, which is not convenient for users to pass The digital TV system is used to obtain relevant weather forecast information, so that the existing digital TV system cannot well meet the needs of users and reduce the user experience.

Contents of the invention

The purpose of the present invention is to provide a digital family weather forecast query system based on a two-way set-top box, aiming at meeting the application requirements of digital TV users to realize weather forecast query through TV channels.

In order to realize the above invention, an embodiment of the present invention provides a weather forecast query system based on a two-way set-top box, the system comprising:

The two-way set-top box is used to receive the weather forecast query request input by the user based on the T9 input method, and send the weather forecast query request to the weather forecast query server; receive the scene description sent by the weather forecast query server according to the weather forecast query request After the file SDF, parse the SDF through the SDF parser SDF_PLAYER, and display the parsed SDF content to the user's TV client;

The weather forecast query server is used to receive the weather forecast query request sent by the two-way set-top box, and call the RMI to query relevant weather forecast information in the weather forecast information server through the remote method according to the weather forecast query request, and pass the weather forecast information through the SDF Send to the two-way set-top box;

The weather forecast information server is used to store relevant weather forecast content information and provide weather forecast content for query services to the query system.

The system also includes a business logic server, which is used to receive and analyze the query request sent by the two-way set-top box, return the parsed query request to the weather forecast query server, and send the query result of the weather forecast query server in the form of Web response Return to the two-way set-top box.

The business logic server adopts the J2EE architecture and is composed of network layer components and business application layer components.

The network layer component is Servlet or CGI, which is used to receive and analyze the weather forecast query request sent by the two-way set-top box; the business application layer component is EJB, which realizes the business processing of the weather forecast query channel.

The system also includes an identity authentication module for authenticating the identity of the weather forecast query channel client; after the identity authentication module successfully authenticates the identity of the client, the weather forecast weather forecast query server can accept the weather of the two-way set-top box Forecast query request.

The query request includes: place name information and time information to be queried. The two-way set-top box sends a weather forecast query request to the business logic server using the HTTP protocol.

Implementing the embodiment of the present invention has the following beneficial effects: by implementing the present invention, the weather forecast query service of the digital home is realized, and the digital home user can realize the weather forecast query through the digital TV, thereby providing the user with a convenient and fast weather forecast query service, It also broadens the scope of digital home services, meets user needs, and increases user experience. By using RMI technology, distributed computing is realized, which can make full use of the powerful functions of object-oriented technology and provide high security. Utilize SDF middleware, support distributed computing, provide cross-network, hardware and OS platform transparent application or service interactive function application program can work in multi-platform or OS environment, the query system can be conveniently installed in different set-top boxes run on different operating systems.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is a system architecture diagram of a digital television system in an embodiment of the present invention;

Fig. 2 is another schematic diagram of the architecture of the weather forecast query system based on the two-way set-top box in the embodiment of the present invention;

FIG. 3 is a flow chart of a two-way set-top box-based weather forecast query method based on the system architecture in FIG. 2 .

Detailed ways

Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Fig. 1 shows the system architecture diagram of the digital television system in the embodiment of the present invention, and this digital television system comprises: digital television 101, digital television 108, digital television 105 etc., the digital television in this system is connected through two-way set-top box In the digital television system, as shown in the figure, the two-way set-top box 102, the two-way set-top box 104, the two-way set-top box 107, etc., the system is also provided with a weather forecast query server 103 and a weather forecast information server 106, etc. Specifically:

Two-way set-top box (two-way set-top box 102, two-way set-top box 104, two-way set-top box 107 etc. among the figure), is used for receiving the weather forecast inquiry request that the user inputs based on T9 input method, and this weather forecast inquiry request is sent to weather forecast inquiry server 103 After receiving the scene description file (SDF) sent by the weather forecast query server 103 according to the weather forecast query request, the SDF is resolved and displayed to the digital TV client (such as digital TV 101, digital TV 108, digital TV 105, etc. ); Specifically, the two-way set-top box parses the SDF file in the system through the SDF resolver (SDF_PLAYER);

The weather forecast query server 103 is used to receive the weather forecast query request sent by the two-way set-top box, and query relevant weather forecast information in the weather forecast information server 106 by remote method invocation (RMI) according to the weather forecast query request, and pass the relevant weather forecast information through SDF is sent to the two-way set-top box;

The weather forecast information server 106 is used for storing relevant weather forecast content information, and providing weather forecast content of query service for the query system.

Specifically, FIG. 2 shows another schematic diagram of the architecture of the weather forecast query system based on the two-way set-top box in the embodiment of the present invention. The system includes:

The weather forecast query channel client here includes two-way set-top boxes and digital TVs. The two-way set-top box presents the TV picture on the digital TV by analyzing the SDF file of the weather forecast query channel, thereby providing a client interface for weather forecast query input for digital home users. The middleware used by the two-way set-top box is SDF_PLAYER, which is used to parse the SDF language and provide T9 Chinese input method. SDF (SceneDescription File), also known as Scene Description File, is an intermediate description language for the operation process, and the element types it supports include pictures, videos, text, input boxes, etc. The two-way set-top box with SDF_PLAYER as the middleware can present the TV channel picture on the digital TV by analyzing the SDF file. The TV user uses the T9 Chinese input method through the number buttons on the remote control, and inputs the location to be queried and the number of days to come in the input box on the TV screen. After clicking the "Query" button, the set-top box will send the weather to the business logic server Forecast query request, the request information includes the location and days input by the user. The two-way set-top box analyzes the SDF file wetherInfo.sdf of the weather forecast query channel, and presents the TV picture on the digital TV, and the remote control of the digital home user inputs the location and the number of days in the next few days in the input box of the client interface. The two-way set-top box uses the HTTP protocol to send a weather forecast query request to the business logic server, and the request information includes the location input by the user and the number of days in the next few days.

The business logic server here includes the Web layer component and the business application layer component. The Web layer component is a Servlet, which is used to receive and analyze the Web request sent by the two-way set-top box, call the corresponding channel business module for processing, and use the processing result of the business module as The Web response is returned to the two-way set-top box; the business application component is EJB, which realizes the business processing of the channel, and the weather forecast query EJB handles the business of the weather forecast query channel, and remotely invokes the weather forecast query method of the weather forecast query server through RMI technology. The service logic server receives and responds to the request sent by the two-way set-top box, and calls the corresponding channel service module for processing. The business logic server adopts the J2EE architecture, including Web layer components and business application layer components. The Web layer component is Servlet, which is used to receive and analyze the Web requests sent by the two-way set-top box, call the corresponding channel business module for processing, and transfer the business module The processing result is returned to the two-way set-top box in the form of Web response; the business application layer component is EJB, which realizes the business processing of each channel and embodies the business logic. Each logic corresponds to an EJB. Among them, the weather forecast query EJB handles the business of the weather forecast query channel, and uses the java distributed computing technology RMI to remotely call the weather forecast query method wetherQuery of the weather forecast query server. The parameters passed to the weather forecast query server during the remote call process include location and time. In addition, the business logic server can also include an identity authentication module for authenticating the identification of the weather forecast query channel client. Only after the identification of the client is confirmed, the business logic server can receive the weather forecast query command sent by the two-way set-top box.

The weather forecast query server includes an RMI module and a weather forecast query module. The RMI module provides the service of calling the weather forecast query method remotely to the business logic server; the weather forecast query module is divided into three sub-modules: location mapping module, time mapping module, and weather query module. Wherein, the location mapping module realizes mapping the location input by the user into the smallest coverage area including the location. The time mapping module realizes the mapping of the current date and the number of days in the future into a specific query date. The weather query module realizes searching the weather forecast records according to the region and date in the weather forecast database.

Correspondingly, based on the system architecture diagram in FIG. 2, FIG. 3 shows a flow chart of a two-way set-top box-based weather forecast query method under the system architecture, including the following steps:

S301: The user selects a weather forecast query channel, the set-top box loads and parses the SDF file wetherInfo.sdf of the weather forecast query channel, and the digital TV presents a client interface for weather forecast query input.

S302: The user uses the T9 Chinese input method through the remote controller to input the query location and the number of days in the next few days into the input box of the weather forecast query channel. After completing the input, click the "Query" button. The set-top box uses the HTTP protocol to send a weather forecast query request to the channel background server, and the request information includes the location of the query and the number of days to come.

S303: The Servlet of the Web layer component of the channel background server receives the weather forecast query request from the set-top box, analyzes it, and determines the channel processing module for processing the request.

S304: The Web layer component Servlet of the channel background server invokes the weather forecast query EJB to process the business of the weather forecast query channel.

S305: The weather forecast query EJB remotely invokes the method of the weather forecast query module of the weather forecast query server through the distributed computing technology RMI, and passes two parameters to the method: the location of the query and the number of days to come.

S306: The weather forecast query server executes the weather forecast query module, and the weather forecast query module realizes that the query location and the number of days in the future will be mapped to the minimum area covering this location and the specific date, and then according to the values of these two keywords in the weather Look up the forecast weather conditions in the forecast database.

S307: The weather forecast query module of the weather forecast query server returns a weather forecast query result to the weather forecast query EJB of the channel background server.

S308: The Servlet of the channel background server returns the weather forecast query result to the set-top box, and displays the weather forecast query information on the digital TV screen.

In the present invention, the weather forecast query module of the weather forecast query server is the core module of the weather forecast query system. The overall process of weather forecast query is shown in Figure 3. First, the module maps the queried location to the minimum coverage area containing this location; then, the module calculates the specific query date based on the current date and the number of days in the future; finally, the module queries the weather based on the two keywords of area and date Forecast the database, and then return the result of the query.

For example, the weather forecast information database has entered the weather forecast information of Panyu District, Guangzhou City, and it is assumed that the current date is January 30, 2010. If the user wants to query the weather information of Guangzhou University City in the next 2 days, when the user enters Guangzhou University City and the number of days 2, the system will map the location of Guangzhou University City to Panyu District and map the number of days 2 to the date February 2010 1, and then query the weather forecast information database according to the Panyu District and the date, and return the result of the query weather forecast information. For another example, the weather forecast information database has entered the weather forecast information of Guangzhou, and it is assumed that the current date is January 30, 2010. If the user wants to query the weather information of Guangzhou City in the next 3 days, when the user enters Guangzhou City and the number of days 3, the system will map the location Guangzhou City to Guangzhou City and the number of days 3 to February 2, 2010, and then according to Guangzhou city and the date query the weather forecast information database, and return the query weather forecast information result.

To sum up, by implementing the present invention, the weather forecast query service of the digital home is realized, and the digital home user can realize the weather forecast query through the digital TV, thereby providing the user with a convenient and quick weather forecast query service, and widening the scope of the digital home business. Satisfy user needs and increase user experience. By using RMI technology, distributed computing is realized, which can make full use of the powerful functions of object-oriented technology and provide high security. Utilize SDF middleware, support distributed computing, provide cross-network, hardware and OS platform transparent application or service interactive function application program can work in multi-platform or OS environment, the query system can be conveniently installed in different set-top boxes run on different operating systems.

The above disclosure is only a preferred embodiment of the present invention, which certainly cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims (7)

1. the digital household weather forecast query system based on bi-directional set-top box is characterized in that, described system comprises:

Bi-directional set-top box is used to receive the weather forecast query request of user based on the input of T9 input method, and described weather forecast query request is sent to the weather forecast query server; After receiving the scene description document SDF of weather forecast query server according to described weather forecast query request transmission, SDF_PLAYER resolves described SDF by the SDF resolver, and the SDF content after will resolving is shown to user's TV user end;

The weather forecast query server, be used to receive the weather forecast query request that bi-directional set-top box sends, and pass through RMI RMI according to described weather forecast query request and in the weather forecast information server, inquire about relevant weather forecast information, described weather forecast information is sent to bi-directional set-top box by SDF;

The weather forecast information server is used to store relevant weather forecast content information, and the weather forecast content of inquiry service is provided for inquiry system.

2. the system as claimed in claim 1, it is characterized in that, described system also comprises a Service Process Server, be used to receive and resolve the query requests that bi-directional set-top box sends, and the query requests after will resolving returns to the weather forecast query server, and weather forecast query server lookup result is returned to bi-directional set-top box in the mode of Web response.

3. system as claimed in claim 2 is characterized in that, Service Process Server adopts the J2EE architecture, is made up of network layer assembly and service application layer assembly.

4. system as claimed in claim 3 is characterized in that, described network layer assembly is Servlet or CGI, is used to receive and resolve the weather forecast query request that bi-directional set-top box sends; The service application layer assembly is EJB, realizes the Business Processing of weather forecast query channel.

5. the system as claimed in claim 1 is characterized in that, described system also comprises an identity authentication module, is used to authenticate the sign of this weather forecast query channel client terminal; After the ID authentication success of authentication module to described client, weather forecast weather forecast query server could be accepted the weather forecast query request of described bi-directional set-top box.

6. as each described system of claim 1 to 5, it is characterized in that described query requests comprises: the information of place names of required inquiry and temporal information.

7. system as claimed in claim 6 is characterized in that, described bi-directional set-top box uses http protocol to send the weather forecast query request to Service Process Server.

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