CN107566899B - Digital video broadcasting terminal and storage device based on android system - Google Patents
Digital video broadcasting terminal and storage device based on android system Download PDFInfo
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Abstract
The embodiment of the invention discloses a digital video broadcasting terminal based on an Android system and a storage device, wherein a core APP is installed in the Android system, services of a DVB (digital video broadcasting) service are realized through the core APP, namely all services or application presentations related to the DVB service are completed in the APP of an application layer, a software subsystem Framework layer of the Android system does not need to be modified, system customization rights are not needed, the coupling degree between the DVB service and the software subsystem of the Android system is reduced, and the development and operation processes of the DVB service system are simplified.
Description
Technical Field
The invention relates to the technical field of smart televisions, in particular to the technical field of Digital Video Broadcasting (DVB), and particularly relates to a Digital Video Broadcasting terminal based on an Android system and a storage device.
Background
In the prior art, service and function display of a DVB service are realized in an Android system-based smart television terminal device, generally according to a technical process of extending a new function subsystem in an Android system, that is, first, functions related to the DVB service are packaged as service components according to an Android service specification, and a Framework layer of a software subsystem of the Android system is modified, so that the DVB service components are integrated in the Framework layer to operate, and then, function display is performed on each related APP (Application) provided for an Application layer of the Android system. In the technical process, the DVB service can be realized only by modifying the Framework layer of the software subsystem of the Android system, which needs to possess the system customization right of the whole terminal product, and the system customization right is generally possessed by a core manufacturer of the system of the terminal product, so that the development of the DVB terminal product is undoubtedly limited by the scheme that the related functions of the existing DVB service completely depend on the Android system.
Disclosure of Invention
The embodiment of the invention provides a DVB terminal based on an Android system and a storage device, which can reduce the coupling degree between a DVB service and a software subsystem of the Android system and simplify the development and operation processes of the DVB service system.
On one hand, the embodiment of the invention provides a digital video broadcasting terminal based on an android system, wherein a core APP is installed in the digital video broadcasting terminal, and a DVB service module is encapsulated in the core APP; the core APP possesses the system permission of the android system, and is used for realizing various DVB services in a DVB service mode.
Preferably, the DVB service module is a service component formed by encapsulating functions of various types of DVB services according to the specification of the android system;
the DVB business service module comprises any one or more of a dynamic library, a script and a data file; and the DVB service module is packaged into the core APP in the packaging process of the core APP.
Preferably, the DVB service module defines various service interfaces required for implementing various types of DVB services;
the core APP is specifically used for detecting whether a DVB service exists in the android system during starting operation, and if so, the corresponding DVB service is realized through a service interface provided by the DVB service module; and if the DVB service module does not exist, loading the DVB service module in the android system, and realizing the corresponding DVB service through a service interface provided by the DVB service module after the loading is successful.
Preferably, the core APP is loaded into the android system in a post-installation manner; or the core APP is loaded into the android system in the mirror image production process of the android system.
Preferably, a self-starting service module is arranged in the core APP, and the self-starting service module is used for triggering the core APP to start running when the android system is detected to start running.
Preferably, at least one common APP is further installed in the digital video broadcasting terminal, and the common APP is configured to request the core APP to implement the DVB service of the target DVB service and to display a corresponding function of the target DVB service.
Preferably, the common APP is specifically configured to obtain a target service interface required for implementing a target DVB service from various service interfaces provided by the DVB service module, and to display a corresponding function of the target DVB service through the obtained target service interface.
Preferably, the ordinary APP is loaded into the android system in a post-installation manner; or the common APP is loaded into the android system in the mirror image production process of the android system.
On the other hand, the embodiment of the invention also provides a storage device, wherein a core APP is stored in the storage device, the core APP is installed in a digital video broadcasting terminal based on an android system, and a DVB service module is encapsulated in the core APP;
the core APP possesses the system permission of the android system, and is used for realizing various DVB services in a DVB service mode.
Preferably, the DVB service module defines various service interfaces required for implementing various types of DVB services;
the core APP is specifically used for detecting whether a DVB service exists in the android system during starting operation, and if so, the corresponding DVB service is realized through a service interface provided by the DVB service module; and if the DVB service module does not exist, loading the DVB service module in the android system, and realizing the corresponding DVB service through a service interface provided by the DVB service module after the loading is successful.
Preferably, at least one common APP is further installed in the digital video broadcasting terminal;
the core APP is also used for providing DVB service for the common APP through a service interface provided by the DVB service module, so that the common APP obtains a target service interface required by the realization of the target DVB service, and the corresponding function of the target DVB service is displayed through the obtained target service interface.
Preferably, the core APP is loaded into the android system in a post-installation manner; or the core APP is loaded into the android system in the mirror image production process of the android system.
According to the embodiment of the invention, the core APP is installed in the Android system, and the service of the DVB service is realized through the core APP, namely all services or application presentations related to the DVB service are completed in the APP of the application layer, a software subsystem Framework layer of the Android system does not need to be modified, the system customization right is also not needed, the coupling degree between the DVB service and the software subsystem of the Android system is reduced, and the development and operation processes of the DVB service system are simplified.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a DVB service form of a conventional DVB terminal based on an Android system;
fig. 2 is a schematic diagram of a DVB service form of a DVB terminal based on an Android system according to an embodiment of the present invention;
fig. 3 is a flowchart of a developing and operating process of a DVB terminal based on an Android system according to an embodiment of the present invention;
fig. 4 is a schematic diagram of another DVB service form of a DVB terminal based on an Android system according to an embodiment of the present invention;
fig. 5 is a flowchart of a development and operation process of another DVB terminal based on an Android system according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
DVB is a series of internationally recognized digital television public standards, and DVB services may include, but are not limited to, any one or more of the following types: DVB broadcasting service, EPG (Electronic Program Guide) data presentation, channel searching service, Program reservation service.
The Android system is a Linux-based free and open source code operating system, and is mainly used in mobile terminal devices such as smart phones and tablet computers, and at present, many smart television terminal devices also widely use the Android system. In fact, the native Android system does not support service and function display of the DVB service, so in the prior art, service and function display of the DVB service is implemented in the smart television terminal device based on the Android system, generally according to a technical process of extending a new function subsystem in the Android system, that is, first, functions related to the DVB service are packaged into a service component according to service specifications of the Android system, and a Framework layer of a software subsystem of the Android system is modified, so that the DVB service component is integrated into the Framework layer to operate, and then, the DVB service component is provided for each related APP of an application layer of the Android system to perform function display, and the service form of the DVB service is referred to in fig. 1. It can be seen that, in the prior art, a DVB terminal product based on an Android system needs to modify a Framework layer of a software subsystem of the Android system to implement a DVB service, which needs to have a system customization right of the whole terminal product, and the system customization right is generally possessed only by a core manufacturer of a system of the terminal product, so that the development of the DVB terminal product is undoubtedly limited by a scheme that the related functions of the existing DVB service completely depend on the Android system.
The embodiment of the invention provides a DVB terminal based on an Android system, which is characterized in that a core APP is installed in the Android system, and services of a DVB service are realized through the core APP, namely all services or application presentations related to the DVB service are completed in the APP of an application layer, a software subsystem Framework layer of the Android system does not need to be modified, a system customization right is also not needed, the coupling degree between the DVB service and the software subsystem of the Android system is reduced, and the development and operation processes of the DVB service system are simplified.
Based on the above description, the embodiment of the present invention provides a DVB terminal based on an Android system, where a core APP is installed in the DVB terminal, and the core APP is located in an application layer of the Android system, and the core APP has the following characteristics:
(1) the core APP does not depend on the Android system completely, and can be placed in a storage device (such as an optical disc) to exist independently; specifically, a core APP can be loaded into the Android system in a post-installation manner; of course, the core APP may also be loaded into the Android system during the mirroring process of the Android system.
(2) And a DVB service module is encapsulated in the core APP. In specific implementation, the functions of various DVB services can be encapsulated according to the specification of the Android system to form a DVB service component, and the DVB service component is the DVB service module. It will be appreciated that the DVB service modules may include any one or more of dynamic libraries, scripts and data files. The DVB service module defines various service interfaces required for realizing various DVB services. And the DVB service module is packaged into the core APP in the packaging process of the core APP.
(3) The core APP possesses the system permission of the Android system, namely the core APP possesses the system permission, therefore, the core APP can realize various DVB services in a DVB service mode, namely the core APP can serve as a DVB service end to provide DVB services to the outside. Meanwhile, the core APP can be used as a DVB client to show corresponding functions of various DVB services.
(4) Optionally, the core APP is provided with a self-start function. The core APP provides DVB service to the outside, and preferably the core APP can be started and operated as early as possible, so that a self-starting service module can be arranged in the core APP, and the self-starting service module is used for triggering the core APP to start and operate when the Android system is detected to start and operate.
In one embodiment, the service and function presentation of all DVB services in a DVB terminal is completely completed by one core APP; the service configuration of this embodiment is shown in fig. 2. In this service form, the core APP can serve as a DVB client to display the corresponding functions of various DVB services, specifically:
the core APP detects whether DVB service exists in the Android system when starting operation, and if yes, the core APP displays corresponding functions of the DVB service through a service interface provided by the DVB service module, for example: performing DVB playing or displaying EPG data, etc.; and if the DVB service module does not exist, loading the DVB service module in the Android system, and displaying corresponding functions of the DVB service through a service interface provided by the DVB service module after the loading is successful.
Referring to fig. 3 together with the development and operation process of the DVB terminal according to the embodiment, the process includes the following steps S101 to S105:
and S101, generating a DVB service module.
The method comprises the steps of packaging the functions of various DVB services into a standard Android service component, defining service interfaces of various DVB services based on a BINDER mechanism of an Android system to form the DVB service component, wherein the DVB service component is a DVB service module, and the DVB service module is embodied in any one or more modes of a dynamic library, a script and a data file.
And S102, developing a core APP.
And developing a core APP which can enter the Android system in an installation or preset mode. Since the core APP is required to provide DVB service, a system right can be given to the core APP according to a mechanism of an application layer APP identity right in an Android system, so that the core APP can run in a system identity. Since the core APP needs the DVB service for the part-time service and can be started earlier, a self-starting module can be added in the core APP and used for automatically triggering the core APP to start and run when the Android system is detected to start and run; meanwhile, the DVB service module obtained in step S101 is packaged into the core APP.
S103, installing a core APP to the DVB terminal.
The method comprises the steps of loading a core APP into an Android system in the mirror image manufacturing process of the Android system, or loading the core APP into the Android system in a later-stage installation mode.
And S104, starting the DVB service.
The core APP detects whether DVB service exists in the Android system when starting operation, if yes, the core APP indicates that the Android system is provided with a DVB service module, and the core APP has the capability of providing a service interface to the outside; and if the DVB service module does not exist, the core APP is required to load the DVB service module in the Android system, and a service interface is provided for the outside after the loading is successful.
And S105, the core APP shows the corresponding functions of the DVB service (the core APP is used as the DVB client self-service DVB service).
The core APP shows the corresponding functions of the DVB service through the service interface provided by the DVB service module, for example: DVB plays or displays EPG data, etc.
In another embodiment, all services of the DVB services in the DVB terminal are completed by one core APP, and the function display of the DVB services is completed by one or more common APPs; the service configuration of this embodiment is shown in fig. 4. Under the service form, the core APP can serve as a DVB service end to provide DVB service for the common APP, and the common APP serves as a DVB client end to show the corresponding functions of the DVB service. It should be noted here that both the core APP and the ordinary APP are in an application layer of the Android system; the common APP is loaded into the Android system in a later-stage installation mode; or the common APP is loaded into the Android system in the mirror image manufacturing process of the Android system.
In this service form, specifically:
the common APP requests a core APP for realizing DVB service of the target DVB service, the core APP provides DVB service for the common APP through a service interface provided by the DVB service module, the common APP acquires a target service interface required by the target DVB service, and the common APP displays corresponding functions of the target DVB service through the acquired target service interface.
Referring to fig. 5 together with the development and operation process of the DVB terminal according to the embodiment, the process includes the following steps S201 to S207:
s201, generating a DVB service module.
S202, developing a core APP.
S203, installing a core APP to the DVB terminal.
And S204, starting the DVB service.
And S205, developing one or more common APPs.
And S206, installing a common APP to the DVB terminal.
S207, the ordinary APP shows the corresponding function of the DVB service (the core APP serves as the DVB service end to provide the DVB service).
The common APP requests DVB service to the core APP, the core APP provides DVB service to the common APP through a service interface provided by the DVB service module, and the common APP shows corresponding functions of the DVB service through the service interface obtained by the request.
According to the DVB terminal based on the Android system, the core APP is installed in the Android system, and the service of the DVB service is realized through the core APP, namely all services or application presentations related to the DVB service are completed in the APP of the application layer, a software subsystem Framework layer of the Android system does not need to be modified, the system customization right is not needed, the coupling degree between the DVB service and the software subsystem of the Android system is reduced, and the development and operation processes of the DVB service system are simplified.
Based on the above description of the embodiment of the DVB terminal based on the Android system, the embodiment of the present invention further discloses a storage device, where the storage device may be a container device such as an optical disc or a floppy disk, which can contain an application program, and the storage device stores a core APP, and the core APP may be installed in the DVB terminal according to the embodiment shown in fig. 2 to 3 and is in an application layer of the Android system. The core APP in the storage device enables the relevant functions of the DVB service to be decoupled from the Android system and is not limited by the system customization right. In this embodiment, the core APP stored in the storage device has the following characteristics:
(1) the core APP can be loaded into the Android system in a post-installation mode; of course, the core APP may also be loaded into the Android system during the mirroring process of the Android system.
(2) And a DVB service module is encapsulated in the core APP. In specific implementation, the functions of various DVB services can be encapsulated according to the specification of the Android system to form a DVB service component, and the DVB service component is the DVB service module. It will be appreciated that the DVB service modules may include any one or more of dynamic libraries, scripts and data files. The DVB service module defines various service interfaces required for realizing various DVB services. And the DVB service module is packaged into the core APP in the packaging process of the core APP.
(3) The core APP possesses the system permission of the Android system, namely the core APP possesses the system permission, therefore, the core APP can realize various DVB services in a DVB service mode, namely the core APP can serve as a DVB service end to provide DVB services to the outside. Specifically, the core APP detects whether DVB service exists in the Android system when the core APP is started to operate, and if yes, the core APP provides DVB service for other common APPs in the DVB terminal so that the other common APPs can show corresponding functions of DVB service; and if the DVB service module does not exist, the DVB service module is loaded in the Android system, and DVB service is provided for other common APP in the DVB terminal after the DVB service module is successfully loaded, so that the other common APP can show corresponding functions of the DVB service.
Meanwhile, the core APP can be used as a DVB client to show corresponding functions of various DVB services. Specifically, the core APP detects whether a DVB service exists in the Android system when starting and running, and if so, the core APP displays a corresponding function of the DVB service through a service interface provided by the DVB service module, for example: performing DVB playing or displaying EPG data, etc.; and if the DVB service module does not exist, loading the DVB service module in the Android system, and displaying corresponding functions of the DVB service through a service interface provided by the DVB service module after the loading is successful.
(4) Optionally, the core APP is provided with a self-start function. The core APP provides DVB service to the outside, and preferably the core APP can be started and operated as early as possible, so that a self-starting service module can be arranged in the core APP, and the self-starting service module is used for triggering the core APP to start and operate when the Android system is detected to start and operate.
The storage device is used for storing the core APP, the core APP is installed in the Android system, and the service of the DVB service is realized through the core APP, namely all services or application presentations related to the DVB service are completed in the APP of the application layer, a software subsystem Framework layer of the Android system does not need to be modified, the system customization right is not needed, the coupling degree between the DVB service and the software subsystem of the Android system is reduced, and the development and operation processes of the DVB service system are simplified.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a described condition or event is detected" may be interpreted, depending on the context, to mean "upon determining" or "in response to determining" or "upon detecting a described condition or event" or "in response to detecting a described condition or event".
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the embodiments of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like. In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage device.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (10)
1. A digital video broadcasting terminal based on an android system is characterized in that a core APP is installed in the digital video broadcasting terminal, a DVB service module is encapsulated in the core APP, the core APP is located in an application layer of the android system, and service or presentation of DVB service is completed in the core APP of the application layer;
the DVB service module is a service assembly formed by packaging the functions of various DVB services according to the specification of the android system and defining various service interfaces required by the various DVB services based on a BINDER mechanism of the android system; the DVB service module is packaged into the core APP in the packaging process of the core APP;
the core APP possesses the system permission of the android system, and the core APP is used as a DVB client to display the corresponding functions of the various DVB services through various service interfaces provided by the DVB service module.
2. The digital video broadcasting terminal of claim 1, wherein the DVB service module comprises any one or more of a dynamic library, a script, and a data file;
the core APP is loaded into the android system in a later-stage installation mode; or the core APP is loaded into the android system in the mirror image production process of the android system.
3. The digital video broadcasting terminal of claim 2, wherein the core APP is specifically configured to detect whether a DVB service exists in the android system during startup and operation, and if so, implement a corresponding DVB service through a service interface provided by the DVB service module; and if the DVB service module does not exist, loading the DVB service module in the android system, and realizing the corresponding DVB service through a service interface provided by the DVB service module after the loading is successful.
4. The digital video broadcasting terminal of claim 3, wherein a self-starting service module is provided in the core APP, and the self-starting service module is configured to trigger the start operation of the core APP when detecting that the android system starts operating.
5. The digital video broadcasting terminal of any of claims 1-4, wherein at least one generic APP is further installed in the digital video broadcasting terminal, and the generic APP is configured to request the core APP for implementing a DVB service of a target DVB service and to display corresponding functions of the target DVB service;
the ordinary APP is loaded into the android system in a later-stage installation mode; or the common APP is loaded into the android system in the mirror image production process of the android system.
6. The digital video broadcasting terminal of claim 5, wherein the generic APP is specifically configured to obtain a target service interface required for implementing a target DVB service from various service interfaces provided by the DVB service module, and to display a corresponding function of the target DVB service through the obtained target service interface.
7. A storage device is characterized in that a core APP is stored in the storage device, the core APP is installed in a digital video broadcasting terminal based on an android system, a DVB service module is encapsulated in the core APP, the core APP is located in an application layer of the android system, and service or presentation of DVB service is completed in the core APP of the application layer;
the DVB service module is a service assembly formed by packaging the functions of various DVB services according to the specification of the android system and defining various service interfaces required by the various DVB services based on a BINDER mechanism of the android system; the DVB service module is packaged into the core APP in the packaging process of the core APP;
the core APP possesses the system permission of the android system, and the core APP is used as a DVB client to display the corresponding functions of the various DVB services through various service interfaces provided by the DVB service module.
8. The storage device of claim 7,
the core APP is specifically used for detecting whether a DVB service exists in the android system during starting operation, and if so, the corresponding DVB service is realized through a service interface provided by the DVB service module; and if the DVB service module does not exist, loading the DVB service module in the android system, and realizing the corresponding DVB service through a service interface provided by the DVB service module after the loading is successful.
9. The storage device of claim 8, wherein at least one generic APP is further installed in the digital video broadcasting terminal;
the core APP is also used for providing DVB service for the common APP through a service interface provided by the DVB service module, so that the common APP obtains a target service interface required by the realization of the target DVB service, and the corresponding function of the target DVB service is displayed through the obtained target service interface.
10. The storage device according to any one of claims 7-9, wherein the core APP is loaded into the android system by means of post-installation; or the core APP is loaded into the android system in the mirror image production process of the android system.
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