CN109587668B - Auxiliary communication equipment, system and communication method between mobile terminals - Google Patents
Auxiliary communication equipment, system and communication method between mobile terminals Download PDFInfo
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- CN109587668B CN109587668B CN201811628358.3A CN201811628358A CN109587668B CN 109587668 B CN109587668 B CN 109587668B CN 201811628358 A CN201811628358 A CN 201811628358A CN 109587668 B CN109587668 B CN 109587668B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Abstract
The invention discloses auxiliary communication equipment, a system and a communication method between mobile terminals, and belongs to the technical field of communication. The equipment comprises a Bluetooth module, a master control module and an ultrashort wave module, the Bluetooth module comprises a Bluetooth transmission unit, a first digital interface and a first analog interface, the ultrashort wave module comprises an ultrashort wave transmission unit, a second digital interface and a second analog interface, the master control module comprises a master control unit, a third digital interface and a fourth digital interface, the Bluetooth transmission unit is in wireless connection with a mobile terminal, the ultrashort wave transmission unit is in wireless connection with another ultrashort wave transmission unit of an auxiliary communication device, the first digital interface is electrically connected with the third digital interface, the first analog interface is electrically connected with the second analog interface, and the second digital interface is electrically connected with the fourth digital interface. The device communicates with the mobile terminal through the Bluetooth module, communicates with other auxiliary communication devices through the ultra-short wave module, and communicates with another mobile terminal through the other auxiliary communication devices, so that communication between the two mobile terminals is realized.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an auxiliary communication device, a system, and a communication method between mobile terminals.
Background
With the development of mobile communication technology, communication based on a communication carrier network becomes a main contact in people's daily life. In the absence of a communication carrier network, people can only communicate with communication devices such as an interphone and the like which do not depend on the communication carrier network. But the interphone does not support data communication services such as short messages and the like.
Disclosure of Invention
The embodiment of the invention provides auxiliary communication equipment, a system and a communication method among mobile terminals, which can realize communication of two or more mobile terminals under the condition of no communication operator. The technical scheme is as follows:
in a first aspect, the present invention provides an auxiliary communication device between mobile terminals, the auxiliary communication device comprising a bluetooth module, a main control module and an ultra-short wave module,
the bluetooth module includes:
the Bluetooth transmission unit is used for being in Bluetooth connection with the mobile terminal and transmitting audio signals or data signals with the mobile terminal through the Bluetooth connection;
the first digital interface and the first analog interface are respectively and electrically connected with the Bluetooth transmission unit;
the ultrashort wave module includes:
the ultra-short wave transmission unit is used for ultra-short wave communication with other auxiliary communication equipment and transmitting audio signals or data signals with other auxiliary communication equipment through the ultra-short wave communication;
the second digital interface and the second analog interface are respectively and electrically connected with the ultrashort wave transmission unit;
the master control module comprises:
the third digital interface and the fourth digital interface are respectively and electrically connected with the first digital interface and the second digital signal and are used for transmitting data signals;
the main control unit is electrically connected with the third digital interface and the fourth digital interface respectively; the main control unit is used for decapsulating the data signal received by the third digital interface according to a Bluetooth module interface protocol, then encapsulating the data signal according to an ultrashort wave module interface protocol and transmitting the decapsulated data signal to the fourth digital interface, or decapsulating the data signal received by the fourth digital interface according to an ultrashort wave module interface protocol, then encapsulating the data signal according to a Bluetooth module interface protocol and transmitting the decapsulated data signal to the third digital interface;
the first analog interface is electrically connected with the second analog interface and transmits audio signals under the control of the main control unit.
Further, the bluetooth module is further configured to:
the mobile terminal and the mobile terminal adopt a Bluetooth head-wearing protocol or a Bluetooth hands-free protocol to transmit audio signals;
and the mobile terminal transmits data signals by adopting a serial port protocol or a general attribute protocol.
Further, the bluetooth transmission unit includes a bluetooth transmission protocol processing sub-module, and the bluetooth transmission protocol processing sub-module is configured to determine whether the mobile terminal sends a data signal or an audio signal according to a protocol used when the mobile terminal transmits a signal to the bluetooth module.
Further, the main control module is further configured to:
receiving a control instruction sent by the mobile terminal, and completing the operation of the corresponding control instruction, wherein the control instruction is used for indicating the main control module to control the Bluetooth module and the ultrashort wave module to switch working modes, and the working modes comprise an audio signal receiving and sending mode or a data signal receiving and sending mode.
Further, when transmitting audio signals or data signals with other auxiliary communication devices, the ultrashort wave module is further configured to:
the audio signal and the data signal are transmitted at different transmission frequencies, respectively.
In a second aspect, the present invention provides a communication system between mobile terminals, where the communication system between mobile terminals includes N mobile terminals and N auxiliary communication devices as described in the first aspect, each of the N mobile terminals is wirelessly connected to one of the N auxiliary communication devices, each of the N auxiliary communication devices is wirelessly connected to another one of the N auxiliary communication devices, and N is an integer greater than or equal to N.
In a third aspect, the present invention provides a communication method between mobile terminals, which is applicable to communication between a first mobile terminal and a second mobile terminal, where the first mobile terminal is bluetooth connected to a first auxiliary communication device, the second mobile terminal is bluetooth connected to a second auxiliary communication device, and both the first auxiliary communication device and the second auxiliary communication device are the auxiliary communication devices according to the first aspect, and the communication method includes:
the first auxiliary communication equipment receives an audio signal or a data signal sent by the first mobile terminal through a Bluetooth transmission unit of a Bluetooth module;
when receiving an audio signal sent by the first mobile terminal, the first auxiliary communication equipment sends the audio signal to a second analog interface of the ultrashort wave module through a Bluetooth module via a first analog interface;
when receiving a data signal sent by the first mobile terminal, the first auxiliary communication device sends the data signal to a third digital interface of the main control module through a Bluetooth module via a first digital interface;
the first auxiliary communication equipment decapsulates the data signal received by the third digital interface according to a Bluetooth module interface protocol through the main control module, encapsulates the data signal according to an ultra-short wave module interface protocol and transmits the encapsulated data signal to a fourth digital interface, and the data signal is sent to a second digital interface of the ultra-short wave module through the fourth digital interface;
and the first auxiliary communication equipment sends the data signal received by the second digital interface and the audio signal received by the second analog interface to an ultrashort wave module of the second auxiliary communication equipment through the ultrashort wave module.
Further, the communication method further includes:
before receiving an audio signal sent by the first mobile terminal, the first auxiliary communication device receives a first control instruction sent by the mobile terminal through the bluetooth module, the first control instruction is sent to the main control module through the first digital interface, and the main control module completes corresponding operation according to the first control instruction;
the first control instruction is used for indicating the main control module to control the Bluetooth module and the ultrashort wave module to be switched to an audio signal receiving and transmitting mode.
Further, the communication method further includes:
before receiving a data signal sent by the first mobile terminal, the first auxiliary communication device receives a second control instruction sent by the mobile terminal through the Bluetooth module, the second control instruction is sent to the main control module through the first digital interface, and the main control module completes corresponding operation according to the second control instruction;
and the second control instruction is used for indicating the main control module to control the Bluetooth module and the ultrashort wave module to be switched to a data signal transceiving mode.
In a fourth aspect, the present invention provides a communication method between mobile terminals, which is applicable to communication between a first mobile terminal and a second mobile terminal, where the first mobile terminal is bluetooth connected to a first auxiliary communication device, the second mobile terminal is bluetooth connected to a second auxiliary communication device, and both the first auxiliary communication device and the second auxiliary communication device are the auxiliary communication devices according to the first aspect, and the communication method includes:
the first auxiliary communication equipment receives the audio signal or the data signal sent by the second auxiliary communication equipment through an ultrashort wave transmission unit of an ultrashort wave module;
when receiving an audio signal sent by the second auxiliary communication equipment, the first auxiliary communication equipment sends the audio signal to a first analog interface of a Bluetooth module through a second analog interface by an ultrashort wave module;
when receiving a data signal sent by the second auxiliary communication device, the first auxiliary communication device sends the data signal to a fourth digital interface of the main control module through an ultrashort wave module via a second digital interface;
the first auxiliary communication device decapsulates the data signal received by the fourth digital interface according to an ultrashort wave module interface protocol through the main control module, encapsulates the data signal according to a bluetooth module interface protocol, and transmits the encapsulated data signal to the third digital interface, wherein the data signal is sent to the first digital interface of the bluetooth module through the third digital interface;
and the first auxiliary communication equipment sends the data signal received by the first digital interface and the audio signal received by the first analog interface to the first mobile terminal through the Bluetooth module.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
through designing an auxiliary communication equipment between mobile terminal, mainly by bluetooth module, host system and ultrashort wave module constitution, on the one hand through bluetooth module and mobile terminal bluetooth connection, on the other hand through ultrashort wave module and other auxiliary communication equipment ultrashort wave connection, other auxiliary communication equipment is connected with another mobile terminal bluetooth to realize the radio communication between two mobile terminal. The device can enable two or more mobile terminals to realize communication under the condition that no communication operator exists, and the device is simple in structure and convenient to carry. Meanwhile, the auxiliary communication equipment can transmit audio signals or data signals and support data communication services such as short messages and voice.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a block diagram of an auxiliary communication device according to an embodiment of the present invention;
FIG. 2 is a block diagram of the auxiliary communication device of FIG. 1;
fig. 3 is a schematic structural diagram of a communication system between mobile terminals according to an embodiment of the present invention;
fig. 4 is a flowchart of a method for communication between mobile terminals according to an embodiment of the present invention;
fig. 5 is a flowchart of another method for communication between mobile terminals according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a block diagram of an auxiliary communication device provided in the present invention, and referring to fig. 1, the auxiliary communication device includes a bluetooth module 101, a main control module 102, and an ultrashort wave module 103.
Fig. 2 is a schematic block configuration diagram of the auxiliary communication device in fig. 1, and referring to fig. 2, the bluetooth module 101 includes a bluetooth transmission unit 111, a first digital interface 112, and a first analog interface 113.
And a bluetooth transmission unit 111, configured to connect with the mobile terminal via bluetooth, and transmit the audio signal or the data signal with the mobile terminal via bluetooth connection. The first digital interface 112 and the first analog interface 113 are electrically connected to the bluetooth transmission unit 111, respectively.
The ultrashort wave module 103 includes an ultrashort wave transmission unit 131, a second digital interface 132, and a second analog interface 133.
And the ultrashort wave transmission unit 131 is used for ultrashort wave communication with other auxiliary communication equipment and carrying out transmission of audio signals or data signals with other auxiliary communication equipment through ultrashort wave communication. And the second digital interface 132 and the second analog interface 133 are respectively electrically connected with the ultrashort wave transmission unit 131.
The main control module 102 includes a main control unit 120, a third digital interface 121, and a fourth digital interface 122.
The third digital interface 121 and the fourth digital interface 122 are electrically connected to the first digital interface 112 and the second digital signal 132, respectively, for transmitting data signals. And the main control unit 120 is electrically connected with the third digital interface 121 and the fourth digital interface 122 respectively.
The main control unit 120 is configured to decapsulate the data signal received by the third digital interface 121 according to the bluetooth module interface protocol, and then transmit the decapsulated data signal to the fourth digital interface 122 according to the ultrashort wave module interface protocol, or decapsulate the data signal received by the fourth digital interface 122 according to the ultrashort wave module interface protocol, and then transmit the decapsulated data signal to the third digital interface 121 after being encapsulated according to the bluetooth module interface protocol.
The first analog interface 113 is electrically connected to the second analog interface 133, and transmits audio signals under the control of the main control unit 120.
The embodiment of the invention designs an auxiliary communication device between mobile terminals, which mainly comprises a Bluetooth module, a main control module and an ultrashort wave module, wherein the auxiliary communication device is connected with the mobile terminals through the Bluetooth module on one hand, and is connected with other auxiliary communication devices through the ultrashort wave module on the other hand, and the other auxiliary communication devices are connected with the other mobile terminals through Bluetooth, so that the wireless communication between the two mobile terminals is realized. The device can enable two or more mobile terminals to realize communication under the condition that no communication operator exists, and the device is simple in structure and convenient to carry. Meanwhile, the auxiliary communication equipment can transmit audio signals or data signals and support data communication services such as short messages and voice.
The mobile terminal in the embodiment of the present invention includes but is not limited to: smart phones, tablet computers, smart watches, and the like.
The data signal may refer to a signal carrying service data such as a short message and positioning.
In this embodiment, the bluetooth module 101 is further configured to:
and the mobile terminal adopts a Bluetooth Head-wearing protocol (HSP for short) or a Bluetooth Hands-Free protocol (HFP for short) to transmit audio signals.
And a Serial Port Protocol (SPP) or a Generic Attribute protocol (GATT) is used between the mobile terminal and the mobile terminal to transmit data signals.
Further, the bluetooth transmission unit 111 includes a bluetooth antenna 1111, a bluetooth rf sub-module 1112, a bluetooth baseband sub-module 1113, and a bluetooth transmission protocol processing sub-module 1114, which are connected in sequence. The bluetooth transmission protocol processing sub-module 1114 is electrically connected to the first digital interface 112 and the first analog interface 113, respectively.
The bluetooth antenna 1111 and the bluetooth rf sub-module 1112 are configured to receive data sent by the mobile terminal, and the bluetooth baseband sub-module 1113 is configured to perform signal demodulation.
The bluetooth transmission protocol processing sub-module 1114 is configured to determine whether the mobile terminal sends a data signal or an audio signal according to a protocol used in signal transmission between the mobile terminal and the bluetooth module. When receiving a data signal, the data signal is sent to the main control module 102 through the first digital interface 112, when receiving an audio signal, the audio signal is decapsulated, the decapsulated audio signal is converted into an analog audio through the first digital-to-analog converter 114, and the analog audio is sent to the ultrashort wave module 103 through the first analog interface 113.
Further, the bluetooth module 101 further includes a first Digital-to-Analog converter (DA) 114 and a first Analog-to-Digital converter (AD) 115.
The first digital-to-analog converter 114 is electrically connected to the bluetooth transmission protocol processing sub-module 1114 and the first analog interface 113, respectively. The first analog-to-digital converter 115 is electrically connected to the bluetooth transmission protocol processing sub-module 1114 and the first analog interface 113, respectively.
Further, the ultrashort wave transmission unit 131 includes an ultrashort wave antenna 1311, an ultrashort wave radio frequency sub-module 1312, an ultrashort wave baseband sub-module 1313, and an ultrashort wave transmission protocol processing sub-module 1314, which are connected in sequence.
The ultrashort wave transmission protocol processing submodule 1314 is electrically connected with the second digital interface 132 and the second analog interface 133 respectively.
The ultrashort wave transmission protocol processing submodule 1314 is used for packaging the digital audio at 1314, modulating the packaged digital audio through an ultrashort wave baseband submodule 1313, and sending the modulated digital audio to an ultrashort wave module of an opposite-end auxiliary communication device through an ultrashort wave radio frequency submodule 1312 and an ultrashort wave antenna 1311.
Further, the ultrashort wave module 103 further includes a second digital-to-analog converter 134 and a second analog-to-digital converter 135. The second digital-to-analog converter 134 is electrically connected to the ultrashort wave transmission protocol processing submodule 1314 and the second analog interface 133, respectively. The second analog-to-digital converter 135 is electrically connected to the ultrashort wave transmission protocol processing submodule 1314 and the second analog interface 133, respectively.
Further, the main control module 102 is further configured to: and receiving a control instruction sent by the mobile terminal, and completing the operation of the corresponding control instruction, wherein the control instruction is used for instructing the main control module 102 to control the Bluetooth module 101 and the ultrashort wave module 103 to switch working modes, and the working modes comprise an audio signal receiving and sending mode or a data signal receiving and sending mode.
Specifically, when the mobile terminal is to send an audio signal, before sending the audio signal, a first control instruction may be sent to the main control module 102, where the first control instruction is used to instruct the main control module 102 to control the bluetooth module 101 and the ultrashort wave module 103 to switch to the audio signal transceiving mode.
When the mobile terminal is to transmit a data signal, before the data signal is transmitted, a second control instruction may be transmitted to the main control module 102, where the second control instruction is used to instruct the main control module 102 to control the bluetooth module 101 and the ultrashort wave module 103 to switch to a data signal transceiving mode.
When the bluetooth module 101 and the ultrashort wave module 103 are in the audio signal transceiving mode, the bluetooth module 101 decapsulates the audio signal, converts the decapsulated audio signal into an analog audio through the first digital-to-analog converter 114, and sends the analog audio to the ultrashort wave module 103 through the first analog interface 113. The ultrashort wave module 103 converts the analog audio into a digital audio through the second analog-to-digital converter 135, the ultrashort wave transmission protocol processing submodule 1314 packages the digital audio, modulates the packaged digital audio through the ultrashort wave baseband submodule 1313, and sends the digital audio to the ultrashort wave module of the opposite-end auxiliary communication device through the ultrashort wave radio frequency submodule 1312 and the ultrashort wave antenna 1311.
When the bluetooth module 101 and the ultrashort wave module 103 are in a data signal transceiving mode, the bluetooth module 101 sends a data signal to the main control module 102 through the first digital interface 112, and the main control unit 120 decapsulates the data signal received by the third digital interface 121 according to a bluetooth module interface protocol, and then encapsulates the data signal according to the ultrashort wave module interface protocol and transmits the encapsulated data signal to the fourth digital interface 122. The ultrashort wave module 103 receives the data signal from the second digital interface 132, and sends the data signal to the ultrashort wave module of the opposite-end auxiliary communication device through the ultrashort wave radio frequency sub-module 1312 and the ultrashort wave antenna 1311.
The bluetooth protocol used by the bluetooth module 101 for communicating with the mobile terminal and the ultrashort wave protocol used by the ultrashort wave module 103 for communicating with the ultrashort wave module of the opposite-end auxiliary communication device are both existing mature protocols, and the decapsulation and encapsulation processes thereof are not described in detail in the invention.
After the ultrashort wave module 103 receives the data sent by the ultrashort wave module of the peer device, the data processing process is similar to the processing process after the bluetooth module 101 receives the data, which is not described herein again.
The protocol used by the secondary communication device is listed in the following table one:
table one:
in this embodiment, when transmitting audio signals or data signals with other auxiliary communication devices, the ultrashort wave module is further configured to:
and respectively transmitting the audio signal and the data signal at different transmission frequencies so as to distinguish the audio signal from the data signal and avoid the influence of the audio signal transmission on the data signal transmission due to the fact that the audio signal transmission occupies a channel for a long time. In addition, when data signals are transmitted, in order to further avoid collision caused by simultaneous transmission of a plurality of devices, a carrier sense multiple access/collision avoidance mechanism is adopted in a link layer.
Alternatively, the main control module 102 may be implemented by a Micro Control Unit (MCU), a Central Processing Unit (CPU), a Field Programmable Gate Array (FPGA), or the like.
In addition, the main control module 102 is a control core of all modules on the device, manages the operating parameters and states of the modules, and controls the processes of different services, such as controlling the bluetooth module 101 and the ultrashort wave module 103 to synchronously complete analog audio transceiving. The main control module 102 may further include a human-machine interface, which performs human-machine interaction with a user and responds to the operation of the user. Meanwhile, the main control module 102 may also implement optional algorithms for encryption/decryption, compression/decompression, and the like of the transmitted data.
Optionally, the device further includes a power module 104, and the power module 104 is electrically connected to the bluetooth module 101, the main control module 102, and the ultrashort wave module 103, respectively, to supply power to other modules.
The power module 104 may include a rechargeable battery, so as to store electric quantity, and when the external power supply cannot be connected, the battery is powered.
Optionally, the voltage of the rechargeable battery and the charging external interface are consistent with those of the mobile terminal, and the same charger is convenient to use.
In this embodiment, the data signal carries a destination number, where the destination number is a terminal number or a group number of the mobile terminal. When receiving a data signal sent by another mobile terminal, the mobile terminal may determine whether to discard the received audio signal or data signal according to a destination number carried in the received data signal.
The basic working steps of the equipment are as follows:
and the mobile terminal is initialized. The mobile terminal used for the first time needs to be provided with matching operation application software, and the software records the number of the mobile terminal of the home terminal.
The secondary communication device initializes settings. And after the auxiliary communication equipment is started, each module completes initialization setting according to the read configuration parameters. And operating on the mobile terminal by the user, and connecting the mobile terminal and the auxiliary communication equipment in a Bluetooth pairing mode. Meanwhile, the user sets the working frequency point of the ultrashort wave module 103 (two or more devices which communicate with each other need to set the same working frequency point).
Point-to-point communication. By operating the application software of the local mobile terminal, data signals such as short messages and positioning information can be sent to the opposite mobile terminal. Specifically, the home terminal mobile terminal encapsulates data according to a protocol format agreed by application software, the encapsulated data is sent to the home terminal auxiliary communication device through Bluetooth, the home terminal auxiliary communication device sends the data to the opposite terminal auxiliary communication device through ultrashort waves, the data is pushed to the opposite terminal mobile terminal through Bluetooth, and the data is displayed on an interface after being analyzed by the opposite terminal mobile terminal; when the application software of the home terminal is operated to enter the audio signal transmission mode, the home terminal can inform the equipment of switching the ultrashort wave working frequency to the audio signal transmission frequency through the Bluetooth and does not receive data of the data signal transmission frequency until the audio signal transmission mode is exited, and the home terminal can inform the equipment of switching the ultrashort wave working frequency back to the data signal transmission frequency through the Bluetooth.
Group communication. The difference between group communication and point-to-point communication is that: the destination number is a group number instead of an opposite terminal mobile terminal number when the number is sent; the source number is identified upon reception by the group number instead of the mobile terminal number.
Configuration and control. The application software of the mobile terminal at the home terminal is operated, the operations such as encryption and the like of data can be selected, and meanwhile, the effective communication range can be improved by adjusting the ultra-short wave transmitting power.
Therefore, compared with the prior art, the device can support a point-to-point and group communication mode between the mobile terminals; supporting communication services such as audio, short messages, positioning information and the like; supporting communication distances of several kilometers in open areas.
Fig. 3 is a schematic structural diagram of a communication system between mobile terminals according to an embodiment of the present invention, and referring to fig. 3, the communication system includes N mobile terminals 201 and N auxiliary communication devices 202 (referred to as devices in fig. 3 for short), each mobile terminal 201 in the N mobile terminals 201 is wirelessly connected to one auxiliary communication device 202 in the N auxiliary communication devices 202, each two of the N auxiliary communication devices 202 are wirelessly connected, N is an integer greater than 1 (as shown in fig. 3, N is 3), and the auxiliary communication device 202 is an auxiliary communication device as provided in fig. 1 and fig. 2, and details are not repeated here.
The embodiment of the invention provides a communication method between mobile terminals, which is suitable for communication between a first mobile terminal and a second mobile terminal, wherein the first mobile terminal is connected with a first auxiliary communication device in a Bluetooth mode, the second mobile terminal is connected with a second auxiliary communication device in a Bluetooth mode, and the first auxiliary communication device and the second auxiliary communication device are the auxiliary communication devices described in the embodiment. The communication method is suitable for a first mobile terminal to send data to a second mobile terminal.
Fig. 4 is a flowchart of a communication method between mobile terminals according to an embodiment of the present invention, and as shown in fig. 4, the communication method includes:
Specifically, what kind of signal is received by the first auxiliary communication device is determined by the operating mode of the second auxiliary communication device.
And step 403, when receiving the data signal sent by the first mobile terminal, the first auxiliary communication device sends the data signal to the third digital interface of the main control module through the first digital interface via the bluetooth module.
And step 404, the first auxiliary communication device decapsulates the data signal received by the third digital interface according to the bluetooth module interface protocol through the main control module, then encapsulates the data signal according to the ultrashort wave module interface protocol and transmits the encapsulated data signal to the fourth digital interface, and the data signal is sent to the second digital interface of the ultrashort wave module through the fourth digital interface.
Step 405, the first auxiliary communication device sends the data signal received by the second digital interface and the audio signal received by the second analog interface to an ultrashort wave module of the second auxiliary communication device through the ultrashort wave module.
Further, the communication method may further include:
before receiving an audio signal sent by a first mobile terminal, a first auxiliary communication device receives a first control instruction sent by the mobile terminal through a Bluetooth module, the first control instruction is sent to a main control module through a first digital interface, and the main control module completes corresponding operation according to the first control instruction.
The first control instruction is used for indicating the main control module to control the Bluetooth module and the ultra-short wave module to be switched to an audio signal receiving and transmitting mode.
Further, the communication method may further include:
before receiving a data signal sent by a first mobile terminal, a first auxiliary communication device receives a second control instruction sent by the mobile terminal through a Bluetooth module, the second control instruction is sent to a main control module through a first digital interface, and the main control module completes corresponding operation according to the second control instruction.
And the second control instruction is used for indicating the main control module to control the Bluetooth module and the ultrashort wave module to be switched to a data signal receiving and transmitting mode.
The embodiment of the invention designs an auxiliary communication device between mobile terminals, which mainly comprises a Bluetooth module, a main control module and an ultrashort wave module, wherein the auxiliary communication device is connected with the mobile terminals through the Bluetooth module on one hand, and is connected with other auxiliary communication devices through the ultrashort wave module on the other hand, and the other auxiliary communication devices are connected with the other mobile terminals through Bluetooth, so that the wireless communication between the two mobile terminals is realized. The device can enable two or more mobile terminals to realize communication under the condition that no communication operator exists, and the device is simple in structure and convenient to carry. Meanwhile, the auxiliary communication equipment can transmit audio signals or data signals and support data communication services such as short messages and voice.
The embodiment of the invention provides another communication method between mobile terminals, which is suitable for communication between a first mobile terminal and a second mobile terminal, wherein the first mobile terminal is connected with a first auxiliary communication device in a Bluetooth mode, the second mobile terminal is connected with a second auxiliary communication device in a Bluetooth mode, and the first auxiliary communication device and the second auxiliary communication device are both the auxiliary communication devices in the embodiment. The communication method is suitable for the first mobile terminal to receive data sent by the second mobile terminal.
Fig. 5 is a flowchart of another communication method between mobile terminals according to an embodiment of the present invention, and as shown in fig. 5, the communication method includes:
and step 501, the first auxiliary communication equipment receives an audio signal or a data signal sent by the second auxiliary communication equipment through an ultrashort wave transmission unit of the ultrashort wave module.
In this embodiment, the first mobile terminal and the second mobile terminal can know whether to transmit an audio signal or a data signal, and whether to receive an audio signal or a data signal. For example, when the first terminal needs to receive the audio signal sent by the second terminal, the first auxiliary communication device can be artificially controlled by the first terminal to switch to the audio signal transceiving mode. When the first terminal needs to receive the audio signal sent by the second terminal, the first auxiliary communication equipment can be manually controlled by the first terminal to be switched to a data signal transceiving mode.
In particular, what kind of signal is received by the second auxiliary communication device is determined by the operating mode of the second auxiliary communication device.
And 503, when receiving the data signal sent by the second auxiliary communication device, the first auxiliary communication device sends the data signal to the fourth digital interface of the main control module through the ultrashort wave module via the second digital interface.
And step 504, the first auxiliary communication device decapsulates the data signal received by the fourth digital interface according to the ultrashort wave module interface protocol through the main control module, then encapsulates the data signal according to the bluetooth module interface protocol and transmits the encapsulated data signal to the third digital interface, and the data signal is sent to the first digital interface of the bluetooth module through the third digital interface.
And 505, the first auxiliary communication device sends the data signal received by the first digital interface and the audio signal received by the first analog interface to the first mobile terminal through the bluetooth module.
The embodiment of the invention designs an auxiliary communication device between mobile terminals, which mainly comprises a Bluetooth module, a main control module and an ultrashort wave module, wherein the auxiliary communication device is connected with the mobile terminals through the Bluetooth module on one hand, and is connected with other auxiliary communication devices through the ultrashort wave module on the other hand, and the other auxiliary communication devices are connected with the other mobile terminals through Bluetooth, so that the wireless communication between the two mobile terminals is realized. The device can enable two or more mobile terminals to realize communication under the condition that no communication operator exists, and the device is simple in structure and convenient to carry. Meanwhile, the auxiliary communication equipment can transmit audio signals or data signals and support data communication services such as short messages and voice.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. An auxiliary communication device between mobile terminals, characterized in that the auxiliary communication device comprises a Bluetooth module (101), a main control module (102) and an ultra-short wave module (103),
the Bluetooth module (101) comprises:
the Bluetooth transmission unit (111) is used for connecting with a mobile terminal in a Bluetooth mode and transmitting audio signals or data signals with the mobile terminal through the Bluetooth connection;
a first digital interface (112) and a first analog interface (113) which are respectively electrically connected with the Bluetooth transmission unit (111);
the ultrashort wave module (103) comprises:
the ultra-short wave transmission unit (131) is used for ultra-short wave communication with other auxiliary communication equipment and transmitting audio signals or data signals with other auxiliary communication equipment through the ultra-short wave communication;
a second digital interface (132) and a second analog interface (133) which are respectively electrically connected with the ultrashort wave transmission unit (131);
the master control module (102) comprises:
a third digital interface (121) and a fourth digital interface (122) electrically connected to the first digital interface (112) and the second digital interface (132), respectively, for transmitting data signals;
the main control unit (120) is electrically connected with the third digital interface (121) and the fourth digital interface (122) respectively; the main control unit (120) is configured to decapsulate the data signal received by the third digital interface (121) according to a bluetooth module interface protocol, then encapsulate the data signal according to an ultrashort wave module interface protocol, and transmit the decapsulated data signal to the fourth digital interface (122), or decapsulate the data signal received by the fourth digital interface (122) according to an ultrashort wave module interface protocol, then encapsulate the decapsulated data signal according to a bluetooth module interface protocol, and transmit the decapsulated data signal to the third digital interface (121);
the first analog interface (113) is electrically connected with the second analog interface (133), and transmits audio signals under the control of the main control unit (120);
the Bluetooth module (101) is further configured to:
the mobile terminal and the mobile terminal adopt a Bluetooth head-wearing protocol or a Bluetooth hands-free protocol to transmit audio signals;
a serial port protocol or a general attribute protocol is adopted to transmit data signals with the mobile terminal;
-when transmitting audio signals or data signals with other auxiliary communication devices, the ultrashort wave module (103) is further configured to:
transmitting the audio signal and the data signal at different transmission frequencies, respectively;
the data signal carries a destination number, the destination number is a terminal number or a group number of the mobile terminal, and when the mobile terminal receives a data signal sent by another mobile terminal, whether to discard the received audio signal or the data signal can be judged according to the destination number carried in the received data signal.
2. The auxiliary communication device according to claim 1, wherein the bluetooth transmission unit (111) comprises a bluetooth transmission protocol processing sub-module (1114), and the bluetooth transmission protocol processing sub-module (1114) is configured to determine whether the mobile terminal sends a data signal or an audio signal according to a protocol used when the mobile terminal transmits a signal to the bluetooth module.
3. The secondary communication device of claim 1, wherein the master module (102) is further configured to:
receiving a control instruction sent by the mobile terminal, and completing the operation of the corresponding control instruction, wherein the control instruction is used for indicating the main control module (102) to control the Bluetooth module (101) and the ultrashort wave module (103) to switch working modes, and the working modes comprise an audio signal transceiving mode or a data signal transceiving mode.
4. An inter-mobile-terminal communication system, characterized in that the inter-mobile-terminal communication system comprises N mobile terminals (201) and N auxiliary communication devices (202) according to any one of claims 1 to 3, each mobile terminal (201) of the N mobile terminals (201) is wirelessly connected with one auxiliary communication device (202) of the N auxiliary communication devices (202), the N auxiliary communication devices (202) are wirelessly connected with each other, and N is an integer greater than 1.
5. A communication method between mobile terminals, adapted to a communication between a first mobile terminal and a second mobile terminal, wherein the first mobile terminal is bluetooth connected to a first auxiliary communication device, and the second mobile terminal is bluetooth connected to a second auxiliary communication device, and the first auxiliary communication device and the second auxiliary communication device are both the auxiliary communication devices according to any one of claims 1 to 3, the communication method comprising:
the first auxiliary communication equipment receives an audio signal or a data signal sent by the first mobile terminal through a Bluetooth transmission unit of a Bluetooth module;
when receiving an audio signal sent by the first mobile terminal, the first auxiliary communication equipment sends the audio signal to a second analog interface of the ultrashort wave module through a Bluetooth module via a first analog interface;
when receiving a data signal sent by the first mobile terminal, the first auxiliary communication device sends the data signal to a third digital interface of the main control module through a Bluetooth module via a first digital interface;
the first auxiliary communication equipment decapsulates the data signal received by the third digital interface according to a Bluetooth module interface protocol through the main control module, encapsulates the data signal according to an ultra-short wave module interface protocol and transmits the encapsulated data signal to a fourth digital interface, and the data signal is sent to a second digital interface of the ultra-short wave module through the fourth digital interface;
and the first auxiliary communication equipment sends the data signal received by the second digital interface and the audio signal received by the second analog interface to an ultrashort wave module of the second auxiliary communication equipment through the ultrashort wave module.
6. The communication method according to claim 5, further comprising:
before receiving an audio signal sent by the first mobile terminal, the first auxiliary communication device receives a first control instruction sent by the mobile terminal through the bluetooth module, the first control instruction is sent to the main control module through the first digital interface, and the main control module completes corresponding operation according to the first control instruction;
the first control instruction is used for indicating the main control module to control the Bluetooth module and the ultrashort wave module to be switched to an audio signal receiving and transmitting mode.
7. The communication method according to claim 5, further comprising:
before receiving a data signal sent by the first mobile terminal, the first auxiliary communication device receives a second control instruction sent by the mobile terminal through the Bluetooth module, the second control instruction is sent to the main control module through the first digital interface, and the main control module completes corresponding operation according to the second control instruction;
and the second control instruction is used for indicating the main control module to control the Bluetooth module and the ultrashort wave module to be switched to a data signal transceiving mode.
8. A communication method between mobile terminals, adapted to a communication between a first mobile terminal and a second mobile terminal, wherein the first mobile terminal is bluetooth connected to a first auxiliary communication device, and the second mobile terminal is bluetooth connected to a second auxiliary communication device, and the first auxiliary communication device and the second auxiliary communication device are both the auxiliary communication devices according to any one of claims 1 to 3, the communication method comprising:
the first auxiliary communication equipment receives the audio signal or the data signal sent by the second auxiliary communication equipment through an ultrashort wave transmission unit of an ultrashort wave module;
when receiving an audio signal sent by the second auxiliary communication equipment, the first auxiliary communication equipment sends the audio signal to a first analog interface of a Bluetooth module through a second analog interface by an ultrashort wave module;
when receiving a data signal sent by the second auxiliary communication device, the first auxiliary communication device sends the data signal to a fourth digital interface of the main control module through an ultrashort wave module via a second digital interface;
the first auxiliary communication device decapsulates the data signal received by the fourth digital interface according to an ultrashort wave module interface protocol through the main control module, encapsulates the data signal according to a bluetooth module interface protocol, and transmits the encapsulated data signal to the third digital interface, wherein the data signal is sent to the first digital interface of the bluetooth module through the third digital interface;
and the first auxiliary communication equipment sends the data signal received by the first digital interface and the audio signal received by the first analog interface to the first mobile terminal through the Bluetooth module.
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| CN115580831A (en) * | 2022-12-07 | 2023-01-06 | 成都星航微波技术有限公司 | Self-adaptive multimode intelligent communication device |
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