CN101860620A - A mobile terminal and a communication method for the mobile terminal - Google Patents

Abstract

The invention discloses a mobile terminal and a communication method of the mobile terminal. The mobile terminal includes: a main processor, a wireless communication module and a video intercom module, the wireless communication module and the video intercom module are respectively connected to the main processor; the wireless communication module is used for Carry out wireless communication with the target mobile terminal through an external wireless network; the visual intercom module includes: a modulation and transmission module, which is used to receive the user's voice and video information, and transmit the voice and video information after frequency modulation modulation; frequency modulation reception The module is used to receive the voice and video information transmitted by the modulation and transmission module of the target mobile terminal, and play the voice and video information after demodulation. The mobile terminal of the present invention can realize the switching of visual intercom on the basis of wireless communication, thereby reducing the dependence on the wireless network and improving user experience.

Description

A mobile terminal and a communication method for the mobile terminal

technical field

The present invention mainly relates to the field of mobile communication, in particular to a mobile terminal and a communication method for the mobile terminal.

Background technique

With the rapid development of mobile communication technology and the improvement of people's living standards, mobile terminal devices such as mobile phones have become an indispensable device in daily work or life. At the same time, people have higher and higher requirements for mobile terminals. They not only want to be portable, but also want to integrate rich functions into a mobile terminal to adapt to the changing external environment.

Existing mobile terminals such as mobile phones and MIDs (Mobile Internet Devices, Mobile Internet Devices) are usually connected to the mobile communication network through a mobile interface, receive signals from the mobile network, and communicate through the channel of the mobile network. Communication is bound to be directly restricted by network conditions. For example, in public places, a wireless network generally can only support a limited number of users to access the network at the same time in a certain coverage area. If there are many people making calls at the same time, some users may not be able to access the network normally. In the blind areas of urban network coverage or in mountainous areas where there is no wireless network signal coverage or when the wireless network is abnormal, it is even more impossible to carry out wireless communication that relies on the wireless network. The connection brings great inconvenience, and even causes great loss to the user.

In the process of realizing the present invention, the inventor found that the prior art has at least the following defects: the current mobile terminals such as mobile phones or MIDs rely too much on wireless networks for mutual communication, which is inconvenient and defective in actual use.

Contents of the invention

The present invention provides a mobile terminal and a communication method for the mobile terminal, which can realize the switching of visual intercom on the basis of wireless communication, thereby reducing the dependence on the wireless network and improving user experience.

Technical scheme of the present invention is realized like this:

A mobile terminal, comprising a main processor, a wireless communication module and a video intercom module, the wireless communication module and the video intercom module are respectively connected to the main processor;

The wireless communication module is used for wireless communication with the target mobile terminal through an external wireless network;

The video intercom module includes:

The modulation and transmission module is used to receive the voice and video information of the user, and perform FM modulation on the voice and video information before transmitting;

The frequency modulation receiving module is used to receive the audio and video information transmitted by the modulation and transmitting module of the target mobile terminal, and demodulate the audio and video information before playing.

Preferably, it also includes:

A switching module, the switching module is connected with the visual intercom module and the wireless communication module, and is used to switch and select the visual intercom module or the wireless communication module according to the switching signal, so that the mobile terminal can Switch between wireless communication mode and video intercom mode.

Preferably, it also includes:

The network state detection module is used to detect the network state of the external wireless network;

A first generating module, configured to generate a switching signal for switching between the wireless communication mode and the video intercom mode according to the detected network status.

Preferably, the first generation module includes:

The first generating submodule is used to generate a switching signal for switching to the visual intercom mode when the network state detection module detects no external wireless network or detects that the state parameter of the network state is lower than a threshold;

The second generating submodule is used to generate a switching signal for switching to the wireless communication mode when the network state detection module detects that the state parameter of the network state is not lower than the threshold.

Preferably, it also includes:

an input unit, configured to receive a selection signal input by a user for the wireless communication mode or the video intercom mode;

A third generating module, configured to generate a switching signal for switching between the wireless communication mode and the video intercom mode according to the selection signal.

Preferably, it also includes a microphone, a loudspeaker, a camera and a display screen, the modulation and transmitting module receives the user's voice and video information through the microphone and the camera, and the demodulated voice and video information passes through the speaker and the display screen to play.

Preferably, a modulation antenna is also included, and the modulation and transmission module transmits the modulated voice and video information through the modulation antenna;

The frequency modulation receiving module receives the voice and video information of the target mobile terminal through the modulation antenna.

A communication method for a mobile terminal, applied to a mobile terminal including a wireless communication module and a video intercom module, including:

In the first working mode, the mobile terminal performs wireless communication with the target mobile terminal through an external wireless network;

In the second working mode, the mobile terminal receives the voice and video information of the user, performs FM modulation on the voice and video information and then transmits it, and receives the voice and video information transmitted by the target mobile terminal, and performs FM modulation on the voice and video information Play after demodulation.

Preferably, it also includes:

Detect the network status of the external wireless network;

generating a switching signal for switching the mobile terminal to a wireless communication mode or a video intercom mode according to the detected network status;

The wireless communication module or the video intercom module is switched and selected according to the switching signal.

Preferably, the generating the switching signal for switching the mobile terminal to the wireless communication mode or the video intercom mode according to the detected network state specifically includes:

When the external wireless network is not detected or the state parameter of the detected network state is lower than the threshold value, a switching signal is generated to switch the mobile terminal to the video intercom mode;

When it is detected that the state parameter of the network state is not lower than the threshold, a switching signal for switching the mobile terminal to a wireless communication mode is generated.

Through the mobile terminal of the present invention, on the one hand, when there is no wireless network coverage, coverage blind spots or wireless network instability, mobile terminal users can perform audio and video transmission at a certain distance and perform visual intercom; On the other hand, even in a place with good network coverage, the mobile terminal of the present invention can carry out free communication within a certain distance without the support of a wireless network due to its video intercom function, thereby saving users' phone charges It can also reduce the congestion pressure of wireless network communication.

Description of drawings

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

FIG. 1 is a structural diagram of a preferred embodiment of a mobile terminal of the present invention;

FIG. 2 is a schematic diagram of switching between various modes of the mobile terminal of the present invention;

FIG. 3 is a schematic flowchart of a preferred embodiment of a communication handover method for a mobile terminal according to the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Referring to FIG. 1 , it shows a structure diagram of a preferred embodiment of a mobile terminal in the present invention. The mobile terminal 100 includes a main processor 110 , a wireless communication module 120 and a video intercom module 130 , and the wireless communication module 120 and the video intercom module 130 are respectively connected to the main processor 110 . In addition to the main processor 110, the wireless communication module 120 and the video intercom module 130, the mobile terminal 100 may also include a microphone 160, a speaker 170, a camera 180, a display screen 150, a wireless communication antenna, and a memory. part.

The main processor 110 is preferably an embedded CPU (Central processing unit, central processing unit) on the main board.

The wireless communication module 120 is used for performing wireless communication with the target mobile terminal through an external wireless network.

Described wireless communication module 120 is the bridge that mobile terminal 100 connects external wireless network, and the system and type of described wireless communication module 120 can be various, as WCDMA (Wideband Code Division Multiple Access, broadband code division multiple access), CDMA2000 (Code Division Multiple Access 2000, Code Division Multiple Access 2000), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access), WiMAX (Worldwide Interoperability for Microwave Access, Global Microwave Interconnection Access) and LTE ((Long Term Evolution , long-term evolution)) etc. In addition, the wireless communication module 120 can also be a wireless MODEM (modem), a wireless data card or other wireless communication modules.

The working principle of the wireless communication module 120 is as follows (taking a mobile phone as an example): the user of the mobile phone sends service data (mainly voice data) to the main processor 110 through the microphone 160 for protocol processing and encoding processing, and then through wireless communication The antenna (mobile phone antenna) sends to the wireless communication network; or the mobile phone user receives the business data of the wireless communication network through the wireless communication antenna (mobile phone antenna), and then sends it to the speaker 170 for playback after protocol processing and decoding processing by the main processor 110.

The video intercom module 130 includes:

The modulating and transmitting module is used to receive the voice and video information of the user, and perform FM modulation on the voice and video information before transmitting.

The frequency modulation receiving module is used to receive the audio and video information transmitted by the modulation and transmitting module of the target mobile terminal, and demodulate the audio and video information before playing.

The modulation and transmission module in the present invention is preferably an FM (Frequency Modulation, frequency modulation) modulation and transmission module. Since the frequency band of FM broadcasting can be shared, both users can select free frequency points as the transmitting frequency and receiving frequency of voice and video information according to the frequency band occupied by the local radio station, thus realizing free or low-cost visual Intercom call. Specifically, after receiving the voice and video information of the user, the modulating and transmitting module selects an idle frequency point in the public FM frequency band to perform FM modulation and transmission on the voice and video information. The modulation and transmitting module receives the user's voice and video information through the microphone 160 and the camera 180, then performs FM modulation on the voice and video information, and finally transmits the user's voice and video information through the wireless communication antenna (mobile phone antenna) or modulation antenna (intercom antenna) FM modulated voice and video information.

The FM receiving module receives the audio and video information transmitted by the modulation and transmitting module of the target mobile terminal by selecting an idle frequency point in the public FM frequency band, and performs FM demodulation, and the demodulated audio and video information passes through the speaker 170 and The display screen 150 plays.

Further, the mobile terminal 100 of the present invention also includes:

A switching module 140, the switching module 140 is connected to the visual intercom module 130 and the wireless communication module 120, and is used to switch and select the visual intercom module 130 or the wireless communication module 120 according to a switching signal, Make the mobile terminal 100 switch between the wireless communication mode and the video intercom mode.

The network state detection module is used to detect the network state of the external wireless network.

A first generating module, configured to generate a switching signal for switching between the wireless communication mode and the video intercom mode according to the detected network status.

Wherein, the first generation module includes:

The first generating submodule is used to generate a switch signal for switching to the video intercom mode when the network state detection module detects no external wireless network or detects that the state parameter of the network state is lower than a threshold. The state parameter of the network state is used to indicate the quality of the network state, and the state parameter may be a signal-to-noise ratio, a bit error rate and other parameters that can represent the quality of the network state, and the threshold value may be set according to actual needs, The present invention does not impose any limitation on this.

The second generating submodule is used to generate a switching signal for switching to the wireless communication mode when the network state detection module detects that the state parameter of the network state is not lower than the threshold.

The mobile terminal 100 of the present invention can switch between the wireless communication mode and the video intercom mode according to the status of the external wireless network.

In general, when the mobile terminal 100 is in the wireless communication mode, the switching module 140 switches to select the wireless communication module 120, and if there is no wireless network coverage or the state parameter of the wireless network state is lower than the threshold, a switching is generated. signal, the switching module 140 switches and selects the video intercom module 130 according to the switching signal, so that the mobile terminal 100 is in a video intercom mode, so that video intercom communication can be performed. If it is detected that the state parameter of the wireless network state is not lower than the threshold, a switching signal is generated, and the switching module 140 switches and selects the wireless communication module 120 according to the switching signal, and closes the video intercom module 130, Make the mobile terminal 100 in the wireless communication mode. Of course, the mobile terminal 100 can also be in the wireless communication mode and the video intercom mode at the same time, and the switching module 140 selects the wireless communication module and the video intercom module 130 at the same time. blend mode.

In the present invention, the function of the network status detection module may also be in charge of the wireless communication module 120, and at this time, the wireless communication module 120 cannot be turned off.

In another embodiment of the present invention, the mobile terminal 100 further includes:

The input unit is used for receiving a selection signal input by a user for selecting a wireless communication mode or a video intercom mode.

A third generating module, configured to generate a switching signal for switching between the wireless communication mode and the video intercom mode according to the selection signal.

At this time, the wireless communication mode and the video intercom mode can be switched according to the user's selection.

In an embodiment of the present invention, the video intercom module 130 can also be provided with a modulation antenna (interphone antenna) separately, and the modulation and transmission module transmits modulated voice and video information through the modulation antenna; the frequency modulation The receiving module receives the voice and video information of the target mobile terminal through the modulation antenna.

Referring to FIG. 2 , it is a schematic diagram of switching between various modes of the mobile terminal according to the present invention. In the above-mentioned Fig. 2, it not only includes the wireless communication mode, the video intercom mode, the mixed mode (in the wireless communication mode and the video intercom mode at the same time), but also includes the power-off state. It should be noted that the above Fig. 2 is only the present A preferred example of the invention is used to illustrate the technical solution of the present invention, and cannot therefore limit the present invention in any way.

By default, the mobile terminal is in the wireless communication mode after startup. After startup, it can automatically switch between the four modes according to network conditions and user operations.

Step 1: When not powered on, the mobile terminal is in a shutdown mode.

Step 2: Power on, the system is powered on and starts, and enters the wireless communication mode by default.

Step 3: In the wireless communication mode, if the network signal is normal, the user can perform various services and local services based on the wireless network. If the shutdown operation is performed, go to step 8.

Step 4: In the wireless communication mode, if the network signal is detected to be weak or no signal within a period of time (the specific time can be set, such as 5 minutes), the system will automatically switch to the hybrid mode and go to step 5. If a mobile network is detected If the signal is normal, the system remains in the wireless communication mode and skips to step 3.

Step 5: In the hybrid mode, on the one hand, it is necessary to detect whether the user initiates or responds to the video intercom; on the other hand, it is necessary to detect the wireless network signal and whether the user performs a shutdown operation.

Step 6: If it is detected that the user starts a video intercom call or answers a video intercom call, in order to avoid mutual interference between the wireless communication module and the video intercom module and improve the call quality, the system automatically switches to the video intercom Walkie-talkie mode, and go to step 7, if it is detected that the network signal has recovered, then switch to wireless communication mode, and go to step 3, if the shutdown operation is performed, go to step 8.

Step 7: After the video intercom ends, in order to detect the status of the mobile network, the system needs to switch to the mixed mode again, and skip to step 5.

Step 8: The system switches to shutdown mode, and the mobile terminal shuts down.

The foregoing is the automatic switching of the mobile terminal among various modes, and the user can also manually implement the switching of the mobile terminal among various modes.

The mobile terminal in the present invention may be a mobile phone, a MID or other mobile terminals.

Through the mobile terminal of the present invention, on the one hand, mobile terminal users can communicate at a certain distance (generally 8-10 kilometers in an open area) when there is no wireless network coverage, a coverage blind area or an unstable wireless network occurs. Audio and video transmission for visual intercom; on the other hand, even in a place with good network coverage, the mobile terminal of the present invention, because it has a visual intercom function and does not require the support of a wireless network, can also conduct a certain distance The free communication in the network can save the user's telephone bill expenses, and can also reduce the blocking pressure of wireless network communication.

The present invention also discloses a communication method for a mobile terminal, and the method is applied to the mobile terminal in the embodiment shown in FIG. 1 .

The communication method of the mobile terminal includes:

In the first working mode, the mobile terminal performs wireless communication with the target mobile terminal through an external wireless network.

In the second working mode, the mobile terminal receives the voice and video information of the user, performs FM modulation on the voice and video information and then transmits it, and receives the voice and video information transmitted by the target mobile terminal, and performs FM modulation on the voice and video information Play after demodulation.

The first working mode is a wireless communication mode, and the second working mode is a video intercom mode.

Referring to FIG. 3 , it shows a schematic flowchart of a preferred embodiment of a communication switching method for a mobile terminal in the present invention, and the communication switching method is applied to a mobile terminal including a wireless communication module and a video intercom module. The methods include:

Step S310, detecting the network status of the external wireless network.

Step S320, generating a switching signal for switching the mobile terminal to a wireless communication mode or a video intercom mode according to the detected network status.

Step S330, switch and select the wireless communication module or the video intercom module according to the switching signal.

Wherein, the step S320 specifically includes:

When the external wireless network is not detected or the state parameter of the detected network state is lower than the threshold, a switching signal for switching the mobile terminal to the video intercom mode is generated.

When it is detected that the state parameter of the network state is not lower than the threshold, a switching signal for switching the mobile terminal to a wireless communication mode is generated.

The specific process of each step has been described in detail in the part of the embodiment of the device shown in FIG. 1 , and will not be repeated here. Just refer to the description of the relevant part of the embodiment shown in FIG. 1 .

Those of ordinary skill in the art can understand that in each method embodiment of the present invention, the serial numbers of the steps described above cannot be used to limit the sequence of the steps. Under the premise, the sequence change of each step is also within the protection scope of the present invention.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (10)

1. a portable terminal is characterized in that, comprises primary processor, wireless communication module and video intercom module, and described wireless communication module is connected with described primary processor respectively with described video intercom module;

Described wireless communication module is used for carrying out wireless telecommunications by external wireless network and destination mobile terminal;

Described video intercom module comprises:

Modulation and transmitter module are used to receive the user's voice video information, and described voice and video information is carried out frequency modulation modulation back emission;

The FM reception module is used for the modulation of receiving target portable terminal and the voice and video information that transmitter module is launched, and described voice and video information is carried out playing after the demodulation.

2. portable terminal according to claim 1 is characterized in that, also comprises:

Handover module, described handover module is connected with described wireless communication module with described video intercom module, be used for switching described video intercom module of selection or described wireless communication module, described portable terminal is switched between wireless communication mode and video intercom pattern according to switching signal.

3. portable terminal according to claim 2 is characterized in that, also comprises:

The network state detection module is used to detect external wireless network of network state;

First generation module is used for being created in the switching signal of switching between described wireless communication mode and the described video intercom pattern according to detected network state.

4. portable terminal according to claim 3 is characterized in that, described first generation module comprises:

First produces submodule, is used for detecting when being lower than threshold value less than external wireless network or the state parameter that detects network state when described network state detection module, and generation switches to the switching signal of described video intercom pattern;

Second produces submodule, is used for when state parameter that described network state detection module detects network state is not less than described threshold value, and generation switches to the switching signal of described wireless communication mode.

5. portable terminal according to claim 2 is characterized in that, also comprises:

Input unit is used to receive the selection signal to described wireless communication mode or described video intercom pattern that the user imports;

The 3rd produces module, is used for being created in the switching signal of switching between described wireless communication mode and the described video intercom pattern according to described selection signal.

6. according to each described portable terminal of claim 1 to 5, it is characterized in that, also comprise microphone, loud speaker, camera and display screen, described modulation and transmitter module receive the user's voice video information by described microphone and described camera, and the voice and video information after the demodulation is play by described loud speaker and described display screen.

7. portable terminal according to claim 6 is characterized in that, also comprises the modulation antenna, the voice and video information after described modulation and transmitter module are modulated by described modulation antenna emission;

Described FM reception module is by the voice and video information of described modulation antenna receiving target portable terminal.

8. the means of communication of a portable terminal are applied to comprise in the portable terminal of wireless communication module and video intercom module, it is characterized in that, comprising:

Under first mode of operation, described portable terminal carries out wireless telecommunications by external wireless network and destination mobile terminal;

Under second mode of operation, described portable terminal receives the user's voice video information, and described voice and video information carried out frequency modulation modulation back emission, and the voice and video information of receiving target portable terminal emission, and described voice and video information carried out playing after the demodulation.

9. the means of communication according to claim 8 is characterized in that, also comprise:

Detect external wireless network of network state;

Make described portable terminal switch to the switching signal of wireless communication mode or video intercom pattern according to detected network state generation;

Switch described wireless communication module of selection or described video intercom module according to described switching signal.

10. the means of communication according to claim 9 is characterized in that, the described switching signal that makes described portable terminal switch to wireless communication mode or video intercom pattern according to detected network state generation specifically comprises:

Make described portable terminal switch to the switching signal of video intercom pattern when detecting when being lower than threshold value, producing less than external wireless network or the state parameter that detects network state;

When the state parameter that detects network state was not less than described threshold value, generation made described portable terminal switch to the switching signal of wireless communication mode.

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