CN205490969U - Multimedia playing system based on mobile terminal - Google Patents

Abstract

The utility model discloses a multimedia playing system based on a mobile terminal. The multimedia playback system includes: a mobile terminal, a display device, and a remote controller; the mobile terminal is electrically connected to the display device and the remote controller, and is used to receive a key code sent by the remote controller, and determine the key code according to the key code. the current playing content of the mobile terminal, and map the current playing content to the display device; the display device is used to display the current playing content of the mobile terminal; the remote controller is used to input the user input The key code is sent to the mobile terminal. The utility model solves the problem of limited application of the existing network set-top box, realizes the function of acquiring multimedia files desired by users and playing them on a display device, and achieves the effect of improving the user's application experience.

Description

A Multimedia Playing System Based on Mobile Terminal

technical field

The embodiment of the utility model relates to digital communication technology, in particular to a multimedia playing system based on a mobile terminal.

Background technique

TV users generally use network set-top boxes to access the Internet to obtain desired audio and video content. A network set-top box is a dedicated computing device used as an interface between a TV and a broadband network. The network set-top box can receive TV signals, reformat the data in the TV signals, and send data to the TV for display on the TV.

At present, the application of network set-top boxes is subject to many restrictions, such as the inability to install application software through a USB port, the inability to have a browser that can access the Internet in the system of the network set-top box, and the inability to push application software or video website clients through the application store. As a result, the user cannot obtain the desired audio and video files through the network set-top box for playback, which affects the user's application experience.

Utility model content

The utility model provides a multimedia playing system based on a mobile terminal to realize the function of acquiring a multimedia file desired by a user and playing it on a display device, thereby improving the application experience of the user.

In the first aspect, the embodiment of the present utility model provides a multimedia playback system based on a mobile terminal, including: a mobile terminal, a display device, and a remote controller;

The mobile terminal is electrically connected to the display device and the remote controller, and is used to receive the key code sent by the remote controller, determine the current playing content of the mobile terminal according to the key code, and map the current playing content to said display device;

The display device is configured to display the currently playing content of the mobile terminal;

The remote controller is used to send the key code input by the user to the mobile terminal.

In the utility model, the mobile terminal receives the key code sent by the remote controller, determines the current playing content of the mobile terminal according to the key code, and maps the current playing content to the display device, so that the display device displays The currently playing content. The utility model solves the problem of limited application of the existing network set-top box, realizes the function of acquiring multimedia files desired by users and playing them on a display device, and achieves the effect of improving user's application experience.

Description of drawings

Fig. 1 is a schematic structural diagram of a multimedia playback system based on a mobile terminal in Embodiment 1 of the present invention;

Fig. 2 is a schematic diagram of the working process of a multimedia playback system based on a mobile terminal in Embodiment 2 of the present invention;

FIG. 3 is a flow chart of a method for performing multimedia playback operations using a mobile terminal-based multimedia playback system in Embodiment 3 of the present invention.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail. It can be understood that the specific embodiments described here are only used to explain the utility model, rather than limit the utility model. In addition, it should be noted that, for the convenience of description, only some structures related to the present utility model are shown in the drawings but not all structures.

Embodiment one

FIG. 1 is a schematic structural diagram of a mobile terminal-based multimedia playback system provided by Embodiment 1 of the present invention. This embodiment is applicable to the case where a mobile terminal is used as a network set-top box. The mobile terminal-based multimedia playing system specifically includes: a mobile terminal 120 , a display device 110 and a remote controller 130 . Preferably, the mobile terminal 120 includes portable mobile terminals such as smart phones and tablet computers. The display device 110 includes devices with large display screens such as televisions and display screens. The remote controller 130 includes an infrared remote controller, a bluetooth remote controller or a wireless fidelity WFI remote controller and the like.

The mobile terminal 120 is electrically connected to the display device 110 and the remote control 130, and is used to receive the key code sent by the remote control 130, determine the current playing content of the mobile terminal 120 according to the key code, and set the The currently playing content is mapped to the display device 110 . Preferably, the mobile terminal 120 determines the multimedia play event corresponding to the key code through the key event processing process; determines the current play content of the mobile terminal 120 according to the multimedia play event, wherein the multimedia play event includes playing File selection event, playback progress adjustment event, volume adjustment event, playback format selection event, etc. For example, on the video playback interface, if the user wants to fast-forward the video, he can press and hold the right button among the left and right progress buttons on the remote control 130 to fast-forward the video. The remote controller 130 transmits the instruction of continuously pressing the right button to the mobile terminal 120 in the form of an infrared signal. When the mobile terminal 120 detects the instruction of continuously pressing the right button, it calls the button processing process to determine that the instruction of continuously pressing the right button corresponds to a playback progress adjustment event, and adjusts the playback of the video currently played by the display device 110 according to the playback progress adjustment event. schedule.

When a user needs to use a display device 110 such as a TV to display video files, establish a communication connection between the mobile terminal 120 and the TV, and then control the mobile terminal 120 through the remote control 130 to display on the TV. The function of the video file that the user wants to play. Wherein, the display device 110 is configured to display the currently playing content of the mobile terminal 120 . The remote controller 130 is configured to send the key code input by the user to the mobile terminal 120 .

Preferably, the mobile terminal 120 includes an infrared receiver; the mobile terminal 120 receives the infrared code transmitted by the remote controller 130 through the infrared receiver, and converts the infrared code into a key code through an infrared drive unit, The function of limiting the communication between the mobile terminal 120 and the remote controller 130 through infrared signals is realized, and the mobile terminal 120 can be controlled by using the existing remote controller 130, without adding a dedicated remote controller for the mobile terminal 120, thereby simplifying the hardware of the multimedia playback system constitute.

Preferably, the mobile terminal 120 is electrically connected to the display device 110 through a signal cable, thereby achieving the effect of limiting the data transmission mode between the mobile terminal 120 and the display device 110 .

Further preferably, the signal cable is a mobile terminal high-definition audio-visual standard interface MHL cable. Wherein, one end of the MHL cable is electrically connected to the mobile terminal 120 with a mobile terminal high-definition audio-visual standard interface, and the other end is electrically connected to the HDMI input interface of the display device 110 . Furthermore, the video signal and audio signal in the mobile terminal 120 are simultaneously transmitted to the external display device 110 through the MHL cable, which does not require the user to go through any settings, and the operation is more convenient. The MHL cable has only 5 pins, 2 of which are dedicated to transmitting audio signals and video signals, the other 2 are power and ground, and 1 pin is a control pin. The MHL cable is equivalent to combining the transmission minimized differential signal (TMDS), the display data channel (DDC) and the consumer electronics control channel (CEC) for control, and all audio signals and video signals can be fully controlled through one control bus. Azimuth control, which makes data storage and data transmission easier.

Further preferably, the mobile terminal 120 includes a mobile terminal high-definition audio-visual standard interface MHL processing unit, which is used to transmit the current playback content of the mobile terminal 120 to the display through the mobile terminal high-definition audio-visual standard interface MHL cable in real time. The device 110; and, the display device 110 supplies power to the mobile terminal 120 through the mobile terminal high-definition audio-visual standard interface MHL cable and the mobile terminal high-definition audio-visual standard interface MHL processing unit. For example, the mobile terminal 120 transmits multimedia files (including video signals and audio signals) to the audio and video signal transmission pins of the MHL cable through the MHL processing unit, and maps the multimedia files to the display device 110 through the MHL cable. Among them, the MHL cable can transmit uncompressed video and audio signals, so that the display device 110 saves the link of decompression, and these video and audio signals can be transmitted to the display device 110 intact and played out. Moreover, the MHL cable supports the transmission of signals in multiple formats without any loss in picture and audio quality. In addition, the function of providing 5V power from the receiving end (usually a TV) to the sending end (usually a smart phone) for charging can be realized through the MHL cable.

In the technical solution of this embodiment, the mobile terminal 120 receives the key code sent by the remote controller 130, determines the current playing content of the mobile terminal 120 according to the key code, and maps the current playing content to the display device 110 , so that the display device 110 displays the currently playing content. The utility model solves the problem of limited application of the existing network set-top box, realizes the function of acquiring the multimedia files desired by the user and playing them on the display device 110, and achieves the effect of improving the user's application experience.

Embodiment two

FIG. 2 is a schematic diagram of the working process of a multimedia playback system based on a mobile terminal in Embodiment 2 of the present invention.

Referring to FIG. 2 , the mobile terminal-based multimedia playback system includes: a TV 210 , an MHL cable 240 , a smart phone 220 and an infrared remote controller 230 . Wherein, the smart phone 220 includes an infrared receiver 224 , and the communication connection between the smart phone 220 and the infrared remote controller 230 is realized through the infrared receiver 224 . For example, in a mobile phone with the Android system as the operating system, the infrared receiver 224 may use an IRM3638 module. An infrared driver unit 223 is installed on the software platform 222 of the smart phone 220 , for converting the infrared codes received by the infrared receiver 224 into corresponding key codes, and then transmitting them to the software platform 222 . For example, the driver program of the IRM3638 module is added on the software platform 222, and the infrared code received by the IRM3638 module is converted into a corresponding key code through the driver program. Add a button event processing process on the software platform 222 in advance, and define the multimedia playback event corresponding to the button code, for example, define the power button on the infrared remote controller 230 to correspond to the opening or closing event of the smart phone 220; you can also define infrared The volume button on the remote controller 230 corresponds to the volume up or down event of the smart phone 220; in addition, it can also be defined that under the playback selection interface, the user presses the left and right progress buttons on the infrared remote controller 230 to correspond to the video selection function, and the video playback In the interface, the user presses the left and right progress buttons on the infrared remote controller 230 for a long time to correspond to a playback progress adjustment event and the like.

When the multimedia application 221 installed on the software platform 222 detects the key code, call the key event processing process, to determine the multimedia playback event corresponding to the key code through the key event processing process, and adjust the current playback content according to the multimedia playback event . The multimedia application 221 transmits the adjusted current playing content to the MHL processing unit 225 through the software platform 222 . The MHL processing unit 225 is connected to the TV 210 through the MHL cable 240 , and transmits the adjusted current playing content to the TV 210 for display through the MHL cable 240 .

In the technical scheme of this embodiment, by adding an infrared receiver 224 on the smart phone 220, adding an infrared driver unit 223 on the software platform 222 of the smart phone 220, and adding a button event processing process in the multimedia application 221, it is realized by Infrared remote control 230 controls the functions of the smart phone; in addition, through the MHL cable 240, the smart phone 220 can transmit audio signals and video signals to the TV 210, and at the same time, the TV 210 can provide power for the smart phone 220. The smartphone 220 serves the purpose of a network set-top box.

Embodiment Three

FIG. 3 is a flow chart of a method for performing multimedia playback operations using a mobile terminal-based multimedia playback system in Embodiment 3 of the present invention. The mobile terminal-based multimedia playing method uses the mobile terminal-based multimedia playing system described in the above embodiments to perform multimedia playing operations. Described method specifically comprises the steps:

Step 310, acquiring the key code sent by the remote controller.

Wherein, the key codes include infrared codes, bluetooth codes and wireless fidelity WIFI codes corresponding to the keys on the remote controller.

Preferably, the mobile terminal obtains the infrared code sent by the remote controller, and converts the infrared code into a key code. When the remote controller establishes a communication connection with the mobile terminal through infrared communication, the remote controller detects the user's operation of pressing a button, determines the infrared code corresponding to the operation, and transmits the infrared code according to the set infrared protocol. The mobile terminal receives the infrared code through a set infrared protocol, and converts the infrared code into a corresponding key code through an infrared drive unit.

Preferably, when the remote controller establishes a communication connection with the mobile terminal through Bluetooth communication, the remote controller detects that the user presses a button, determines the button code corresponding to the operation, and transmits the remote controller according to the set Bluetooth protocol. key code. The mobile terminal successfully paired with the remote controller receives the key code through the set bluetooth protocol.

Preferably, when the remote controller establishes a communication connection with the mobile terminal through a wireless communication method (such as WIFI), the remote controller detects the user's operation of pressing a button, determines the button code corresponding to the operation, and follows the set wireless The communication protocol transmits the key code. The mobile terminal successfully connected with the remote controller receives the key code through the set wireless communication protocol.

Step 320, determine the current playing content of the mobile terminal according to the key code.

A key event processing process is added to the multimedia application of the mobile terminal, and the current playing content of the mobile terminal is determined according to the key event processing process and the multimedia playback event corresponding to the predefined key code.

Preferably, the mobile terminal determines the multimedia play event corresponding to the key code through the key event processing process; determines the current play content of the mobile terminal according to the multimedia play event, wherein the multimedia play event includes a play file selection event, Play progress adjustment event, volume adjustment event and playback format selection event. For example, when the user is watching a video, if he wants to switch the current standard-definition video file to a high-definition video file, he needs to press the menu button on the remote controller, and select the high-definition format in the menu button. The remote controller generates an infrared code corresponding to this operation by the user, and transmits the infrared code. The smart phone receives the infrared code, obtains the key code corresponding to the infrared code through the infrared drive unit, and transmits the key code to the multimedia application, so that the multimedia application calls the key event processing process, and determines the key code corresponding to the key code through the key event processing process. The multimedia playback event. Furthermore, the current playing content of the mobile terminal is determined according to the multimedia playing event.

Step 330: Map the currently playing content to a display device, so that the display device displays the currently playing content.

Establish a communication connection between the mobile terminal and the display device. For example, the mobile terminal and the display device may be connected through a signal cable; a wireless connection (such as a WIFI connection or a ZigBee connection) between the mobile terminal and the display device may also be established. Preferably, the mobile terminal transmits the currently playing content to the display device through a signal cable, wherein the signal cable is a mobile terminal high-definition audio-visual standard interface MHL cable, which can not only transmit data through the MHL cable, but also provide The effect of mobile terminal power supply.

Note that the above are only preferred embodiments of the present invention and the applied technical principles. Those skilled in the art will understand that the utility model is not limited to the specific embodiments described here, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the utility model. Therefore, although the utility model has been described in detail through the above embodiments, the utility model is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the utility model. The scope of the present invention is determined by the appended claims.

Claims (5)

1. a multimedia play system based on mobile terminal, it is characterised in that including: mobile terminal, Display device and remote controller；

Described mobile terminal electrically connects with described display device and remote controller, is used for receiving described remote controller and sends Keyboard-coding, determine the currently playing content of described mobile terminal according to described keyboard-coding, by described work as Front broadcasting content map is to described display device；

Described display device, for showing the described currently playing content of described mobile terminal；

Described remote controller, sends to described mobile terminal for keyboard-coding user inputted.

Multimedia play system the most according to claim 1, it is characterised in that described mobile terminal bag Include infrared remote receiver；

Described mobile terminal receives, by described infrared remote receiver, the infrared coding that described remote controller is launched, and leads to Cross infrared driver element and described infrared coding is converted to keyboard-coding.

Multimedia play system the most according to claim 1, it is characterised in that described mobile terminal leads to Cross signal cable to electrically connect with described display device.

Multimedia play system the most according to claim 3, it is characterised in that described signal cable is Mobile terminal high-definition audio and video standard interface MHL cable.

Multimedia play system the most according to claim 4, it is characterised in that described mobile terminal bag Include mobile terminal high-definition audio and video standard interface MHL processing unit, in real time current by described mobile terminal Play content by the transmission of described mobile terminal high-definition audio and video standard interface MHL cable to described display device； And, whole by mobile terminal high-definition audio and video standard interface MHL cable and described movement by described display device End high-definition audio and video standard interface MHL processing unit is that described mobile terminal is powered.