CN106850574B - Message transmission method and system, sending end equipment and receiving end equipment - Google Patents
Message transmission method and system, sending end equipment and receiving end equipment Download PDFInfo
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- CN106850574B CN106850574B CN201611259609.6A CN201611259609A CN106850574B CN 106850574 B CN106850574 B CN 106850574B CN 201611259609 A CN201611259609 A CN 201611259609A CN 106850574 B CN106850574 B CN 106850574B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/14—Multichannel or multilink protocols
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- G—PHYSICS
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- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/06—Notations for structuring of protocol data, e.g. abstract syntax notation one [ASN.1]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention provides a message transmission method and system, sending end equipment and receiving end equipment. Wherein the method comprises: the method comprises the steps that a sending end device obtains a message structure used for sending message content and a data channel used for transmitting a message corresponding to the message structure by using a vehicle-mounted device interconnection communication protocol according to the type of the message content to be sent; the sending end equipment writes the message content into the data part of the message structure to obtain a target message; the sending end device sends the target message to the receiving end device through a data channel of the vehicle-machine interconnection communication protocol, so that the receiving end device obtains message content from the received target message and carries out corresponding processing according to the message content. The technical scheme of the invention can ensure that the vehicle-mounted equipment and the mobile terminal can not only communicate through Bluetooth, but also communicate through a vehicle-mounted machine interconnection communication protocol, thereby enriching the communication modes between the mobile terminal and the vehicle-mounted equipment and further enriching the transmission of more message contents between the mobile terminal and the vehicle-mounted equipment.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to the field of communications technologies, and in particular, to a message transmission method and system, a sending end device, and a receiving end device.
[ background of the invention ]
With the development of science and technology, the quantity of automobiles kept in various places is rapidly increased, and vehicles become the most basic transportation tools for people to go out.
With the popularization of mobile terminals, users can use the mobile terminals when driving vehicles to go out conveniently. The mobile terminal and the vehicle-mounted equipment are connected through the Bluetooth in the prior art. When the mobile terminal is used specifically, a user opens the Bluetooth of the mobile terminal and the Bluetooth of the vehicle-mounted equipment, then the mobile terminal searches the Bluetooth of the vehicle-mounted equipment, and a password is input to be connected with the vehicle-mounted equipment through the Bluetooth. Therefore, the mobile terminal can dial or answer the phone through the vehicle-mounted equipment; in addition, the music of the mobile terminal can be played through the vehicle-mounted equipment. Therefore, the safety of the user in driving the vehicle can be improved by ensuring that the user makes or receives a call through the vehicle-mounted equipment in the process of driving the vehicle. Meanwhile, music of the mobile terminal can be played through the vehicle-mounted equipment, and travel pleasure is enhanced.
However, in the prior art, the communication mode between the vehicle-mounted device and the mobile terminal is single, and the content of the message supporting transmission is not rich enough.
[ summary of the invention ]
The invention provides a message transmission method and system, sending end equipment and receiving end equipment, which are used for enriching communication modes and transmitted message contents between vehicle-mounted equipment and a mobile terminal.
The invention provides a message transmission method, which comprises the following steps:
the method comprises the steps that a sending end device obtains a message structure used for sending message content and a data channel used for transmitting a message corresponding to the message structure by adopting a vehicle-mounted device interconnection communication protocol according to the type of the message content to be sent;
the sending end equipment writes the message content into a data part of the message structure to obtain a target message;
and the sending end equipment sends the target message to receiving end equipment through the data channel of the vehicle-machine interconnection communication protocol so that the receiving end equipment can obtain the message content from the received target message and carry out corresponding processing according to the message content.
Further optionally, in the method, if the sending end device is a vehicle-mounted device and the receiving end device is a mobile terminal, the sending end device obtains, according to a type of a message content to be sent, a message structure used for sending the message content and a data channel used for transmitting a message corresponding to the message structure by using the vehicle-mounted device interconnection communication protocol, and the method specifically includes:
if the message content to be sent is a control message, the vehicle-mounted equipment acquires a message structure used for sending the control message and a control data channel used for transmitting the control message by adopting the vehicle-mounted equipment interconnection communication protocol according to the control message;
if the message content to be sent is a voice message, the vehicle-mounted equipment acquires a message structure adopted for sending the voice message and a voice data channel adopted for transmitting the voice message by adopting the vehicle-mounted equipment interconnection communication protocol according to the voice message; or
And if the message content to be sent is a reverse control message, the vehicle-mounted equipment acquires a message structure used for sending the reverse control message and a reverse control data channel used for transmitting the reverse control message by adopting the vehicle-mounted equipment interconnection communication protocol according to the reverse control message.
Further optionally, in the method described above, the control message includes at least one of vehicle data, a bluetooth auto-pairing message, and a video initialization message; the voice message comprises voice data of a user recorded by the vehicle-mounted equipment; the anti-control message comprises a touch event or a key event of the user, which is acquired by the vehicle-mounted equipment.
Further optionally, in the method, if the sending end device is a mobile terminal and the receiving end device is a vehicle-mounted device, the sending end device obtains, according to a type of a message content to be sent, a message structure used for sending the message content and a data channel used for transmitting a message corresponding to the message structure by using a vehicle-mounted device interconnection communication protocol, and the method specifically includes:
if the message content to be sent is a control message, the mobile terminal acquires a message structure adopted for sending the control message and a control data channel adopted for transmitting the control message by adopting the vehicle-machine interconnection communication protocol according to the control message;
if the message content to be sent is a video message, the mobile terminal acquires a message structure adopted for sending the video message and a video data channel adopted for transmitting the control message by adopting the vehicle-machine interconnection communication protocol according to the video message;
and if the message content to be sent is an audio message, the mobile terminal acquires a message structure adopted for sending the audio message and an audio data channel adopted for transmitting the control message by adopting the vehicle-machine interconnection communication protocol according to the audio message.
Further optionally, in the method as described above, the video message includes video encoding data of a screen of the mobile terminal; the audio message includes at least one of music data and navigation voice broadcast data at the mobile terminal side.
The invention also provides a message transmission method, which comprises the following steps:
the receiving end equipment receives the target message sent by the sending end equipment through a data channel of the vehicle-machine interconnection communication protocol;
the receiving end equipment determines the position of the message content in the target message in the corresponding message structure according to the type of the data channel;
and the receiving terminal equipment acquires the message content from the target message according to the position of the message content in the corresponding message structure.
Further optionally, in the method described above, the determining, by the receiving end device, a position of a message content in the target message in a corresponding message structure according to the type of the data channel specifically includes:
the receiving end equipment determines the type of the message content according to the type of the data channel;
and the receiving terminal equipment determines the position of the message content in the target message in the corresponding message structure according to the type of the message content.
Further optionally, in the method, if the receiving end device is a mobile terminal and the sending end device is a vehicle-mounted device, the type of the corresponding data channel includes a control data channel, a voice data channel, or an inverse control data channel; the type of the corresponding message content is control message, voice message or anti-control message;
if the receiving end equipment is vehicle-mounted equipment and the sending end equipment is a mobile terminal, the type of the corresponding data channel comprises a control data channel, a video data channel or an audio data channel; the type of the corresponding message content is a control message, a video message or an audio message.
The present invention also provides a transmitting end device, the device comprising:
the device comprises an acquisition module, a processing module and a sending module, wherein the acquisition module is used for acquiring a message structure used for sending the message content and a data channel used for transmitting a message corresponding to the message structure by adopting a vehicle-mounted device interconnection communication protocol according to the type of the message content to be sent;
a writing module, configured to write the message content into a data portion of the message structure to obtain a target message;
and the sending module is used for sending the target message to receiving end equipment through the data channel of the vehicle-machine interconnection communication protocol so that the receiving end equipment can obtain the message content from the received target message and carry out corresponding processing according to the message content.
Further optionally, in the above device, if the sending end device is a vehicle-mounted device, and the receiving end device is a mobile terminal, the obtaining module is specifically configured to:
if the message content to be sent is a control message, acquiring a message structure adopted for sending the control message and a control data channel adopted for transmitting the control message by adopting the vehicle-machine interconnection communication protocol according to the control message;
if the message content to be sent is a voice message, acquiring a message structure adopted for sending the voice message and a voice data channel adopted for transmitting the voice message by adopting the vehicle-mounted device interconnection communication protocol according to the voice message; or
And if the message content to be sent is a reverse control message, acquiring a message structure adopted by sending the reverse control message and a reverse control data channel adopted by transmitting the reverse control message by adopting the vehicle-machine interconnection communication protocol according to the reverse control message.
Further optionally, in the apparatus as described above, the control message includes at least one of vehicle data, a bluetooth auto-pairing message, and a video initialization message; the voice message comprises voice data of a user recorded by the vehicle-mounted equipment; the anti-control message comprises a touch event or a key event of the user, which is acquired by the vehicle-mounted equipment.
Further optionally, in the above device, if the sending end device is a mobile terminal and the receiving end device is a vehicle-mounted device, the obtaining module is specifically configured to:
if the message content to be sent is a control message, acquiring a message structure adopted for sending the control message and a control data channel adopted for transmitting the control message by adopting the vehicle-machine interconnection communication protocol according to the control message;
if the message content to be sent is a video message, acquiring a message structure adopted by sending the video message and a video data channel adopted by transmitting the control message by adopting the vehicle-mounted device interconnection communication protocol according to the video message;
and if the message content to be sent is an audio message, acquiring a message structure adopted by sending the audio message and an audio data channel adopted by transmitting the control message by adopting the vehicle-mounted interconnection communication protocol according to the audio message.
Further optionally, in the apparatus as described above, the video message includes video encoding data of a screen of the mobile terminal; the audio message includes at least one of music data and navigation voice broadcast data at the mobile terminal side.
The present invention also provides a receiving end device, the device comprising:
the receiving module is used for receiving a target message sent by the sending end equipment through a data channel of the vehicle-machine interconnection communication protocol;
the determining module is used for determining the position of the message content in the target message in the corresponding message structure according to the type of the data channel;
and the acquisition module is used for acquiring the message content from the target message according to the position of the message content in the corresponding message structure.
Further optionally, in the above apparatus, the determining module is specifically configured to:
determining the type of the message content according to the type of the data channel;
and determining the position of the message content in the target message in the corresponding message structure according to the type of the message content.
Further optionally, in the above device, if the receiving end device is a mobile terminal and the sending end device is a vehicle-mounted device, the type of the corresponding data channel includes a control data channel, a voice data channel, or an inverse control data channel; the type of the corresponding message content is control message, voice message or anti-control message;
if the receiving end equipment is vehicle-mounted equipment and the sending end equipment is a mobile terminal, the type of the corresponding data channel comprises a control data channel, a video data channel or an audio data channel; the type of the corresponding message content is a control message, a video message or an audio message.
The invention also provides a message transmission system, which comprises sending end equipment and receiving end equipment; the sending end equipment is in communication connection with the receiving end equipment; the sending end device adopts the sending end device, and the receiving end device adopts the receiving end device.
According to the message transmission method and system, the sending end device and the receiving end device, the sending end device obtains a message structure used for sending the message content and a data channel used for transmitting the message corresponding to the message structure by using the vehicle-machine interconnection communication protocol according to the type of the message content to be sent; the sending end equipment writes the message content into the data part of the message structure to obtain a target message; the sending end device sends the target message to the receiving end device through a data channel of the vehicle-machine interconnection communication protocol, so that the receiving end device obtains message content from the received target message and carries out corresponding processing according to the message content. By adopting the technical scheme of the invention, the vehicle-mounted equipment and the mobile terminal in the prior art can be ensured to be not only in communication connection through Bluetooth, but also in communication connection through the vehicle-mounted equipment interconnection communication protocol, so that the communication modes between the mobile terminal and the vehicle-mounted equipment can be enriched, further the transmission of more message contents between the mobile terminal and the vehicle-mounted equipment is enriched, and the use is very convenient.
[ description of the drawings ]
Fig. 1 is a flowchart of a first embodiment of a message transmission method according to the present invention.
Fig. 2 is a schematic diagram of a message structure of a control message according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a message structure of a video message according to an embodiment of the present invention.
Fig. 4 is a diagram illustrating a message structure of an audio message according to an embodiment of the present invention.
Fig. 5 is a diagram illustrating a message structure of a voice message according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of a message structure of a counter control message according to an embodiment of the present invention.
Fig. 7 is a flowchart of a second message transmission method according to the present invention.
Fig. 8 is a block diagram of an embodiment of a transmitting-end device of the present invention.
Fig. 9 is a block diagram of an embodiment of a receiving end device of the present invention.
Fig. 10 is a block diagram of an embodiment of a message transmission system of the present invention.
Fig. 11 is a block diagram of an embodiment of an electronic device provided in the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a flowchart of a first embodiment of a message transmission method according to the present invention. As shown in fig. 1, the message transmission method of this embodiment may specifically include the following steps:
100. the method comprises the steps that a sending end device obtains a message structure used for sending message content and a data channel used for transmitting a message corresponding to the message structure by using a vehicle-mounted device interconnection communication protocol according to the type of the message content to be sent;
101. the sending end equipment writes the message content into the data part of the message structure to obtain a target message;
102. the sending end device sends the target message to the receiving end device through a data channel of the vehicle-machine interconnection communication protocol, so that the receiving end device obtains message content from the received target message and carries out corresponding processing according to the message content.
The message transmission method of the embodiment is applied to message transmission between sending end equipment and receiving end equipment. The sending end device of this embodiment may be a mobile terminal or a vehicle-mounted device; the receiving terminal device may also be a mobile terminal or a vehicle-mounted device. Namely, the message transmission method of the embodiment is applied between the mobile terminal and the in-vehicle device. The vehicle-mounted equipment of the embodiment can be understood as equipment which is arranged on a vehicle machine and integrated with the vehicle machine. In a scenario to which the message transmission method of this embodiment is applied, a Universal Serial Bus (USB) is used for connection between the sending-end device and the receiving-end device, that is, between the mobile terminal and the vehicle-mounted device. The sending end device and the receiving end device of this embodiment use the vehicle-machine interconnection communication protocol for message transmission. In this embodiment, the sending end device and the receiving end device may also perform message transmission by using a vehicle-mounted device interconnection communication protocol in a wireless connection manner, and a specific wireless connection manner is not limited in this embodiment. In this embodiment, a name of the in-vehicle device interconnection communication protocol used in this embodiment may be defined as carefe, and it may be understood that carefe is a communication protocol for performing message transmission between the mobile terminal and the vehicle-mounted device defined in this application, and the protocol supports communication between the mobile terminal and the vehicle-mounted device by using a USB. When the message transmission method is used, applications of CarLife can be installed on both sides of the mobile terminal and the vehicle-mounted device, so that both sides of the mobile terminal and the vehicle-mounted device support vehicle-mounted device interconnection communication, and when the mobile terminal and the vehicle-mounted device are connected, the mobile terminal and the vehicle-mounted device transmit messages through the CarLife.
In this embodiment, when the message is transmitted by using the carpife car-machine interconnection communication protocol, the types of the content of the message that can be transmitted include a control message and a multimedia message. In order to further increase the accuracy of message transmission according to the message content, the control messages in this embodiment can be further divided into two types, namely control messages and anti-control messages. For example, the control message of this embodiment may be a control message that the mobile terminal controls the vehicle-mounted device to open/close an air conditioner of the vehicle machine, or open/close a sunroof of the vehicle machine; and the vehicle-mounted equipment can also control the mobile terminal to make a call or read information of the mobile terminal and other control messages. The control message of the present embodiment may further include at least one of vehicle data, a bluetooth auto-pairing message, a video initialization message, and the like. The anti-control message of the embodiment may include an anti-control message such as a touch event or a key event on the vehicle side, which is sent to the mobile terminal by the vehicle-mounted device. To further increase the accuracy of transmitting messages according to the message contents, the multimedia message of the present embodiment may be divided into a video message, an audio message, and a voice message. For example, the video message of the embodiment may be video encoding data transmitted by the mobile terminal to the vehicle-mounted device, and after the mobile terminal and the vehicle-mounted device communicate through the USB, the mobile terminal needs to project information displayed on a screen onto the vehicle-mounted device in real time in the form of video. I.e. the video message comprises video encoding data of the screen of the mobile terminal. The audio information of this embodiment may be Media audio stream such as music data, or may also be audio stream for transmitting Text To language (TTS) such as navigation voice broadcast data. For example, Pulse Code Modulation (PCM) streams may be used for mobile terminals to transmit music and navigation voice broadcasts, respectively, to in-vehicle devices. The voice message of this embodiment may be user voice data recorded by a vehicle microphone (mic) transmitted by the vehicle-mounted device to the mobile terminal.
For each type of message content, the corresponding message structure is different, and the data channels adopted in message transmission are different. As described above, the message content in this embodiment may include five types of control messages, video messages, audio messages, voice messages, and anti-control messages, and each type of message has its corresponding data structure and a corresponding data channel during message transmission. Namely, five types of data channels are correspondingly arranged in the car life machine interconnection communication protocol: a control message data channel, a video message data channel, an audio message data channel, a voice message data channel, and an anti-control message data channel.
Fig. 2 is a schematic diagram of a message structure of a control message according to an embodiment of the present invention. As shown in fig. 2, the header of the message structure of the control message may include fields length, reserved, and service type, and the data part is used to transmit the control message to be transmitted. The header of the control message is fixed in length and is 8 bytes. The remaining field definitions, bit Offsets, sizes, and field attributes and meanings are shown in table 1 below:
TABLE 1
Fig. 3 is a schematic diagram of a message structure of a video message according to an embodiment of the present invention. As shown in fig. 3, the header of the message structure of the video message may include fields length, timestamp, and service type. The data portion is used to transmit the video message to be transmitted. The video message header is fixed in length and 12 bytes. The remaining field definitions, bit Offsets, sizes, and field attributes and meanings are shown in table 2 below.
TABLE 2
Fig. 4 is a diagram illustrating a message structure of an audio message according to an embodiment of the present invention. As shown in fig. 4, the header of the message structure of the video message may also include fields length, timestamp, and service type. The data portion is used to transmit the audio message to be transmitted. The length of the audio message header is fixed and 12 bytes. The remaining field definitions, bit Offsets, sizes, and field attributes and meanings are shown in table 3 below.
TABLE 3
Fig. 5 is a diagram illustrating a message structure of a voice message according to an embodiment of the present invention. As shown in fig. 5, the header of the message structure of the voice message may also include fields length, timestamp, and service type. The data portion is used to transmit voice messages to be transmitted. The length of the voice message header is fixed and is 12 bytes. The remaining field definitions, bit Offsets, sizes, and field attributes and meanings are shown in table 4 below.
TABLE 4
Fig. 6 is a schematic diagram of a message structure of a counter control message according to an embodiment of the present invention. As shown in fig. 6, the header of the message structure of the counter control message may also include fields length, reserved, and service type. The data portion is used to transmit the counter control message to be transmitted. The length of the header of the back control message is fixed and is 8 bytes. The remaining field definitions, bit Offsets, sizes, and field attributes and meanings are shown in table 5 below.
TABLE 5
Further optionally, on the basis of the technical solution of the foregoing embodiment, if the sending end device is a vehicle-mounted device and the receiving end device is a mobile terminal, step 100 "in the foregoing embodiment, the sending end device obtains, according to the type of the message content to be sent, a message structure used for sending the message content and a data channel used for transmitting a message corresponding to the message structure by using the vehicle-mounted device interconnection communication protocol", which may specifically include the following several cases:
in the first situation, if the content of the message to be sent is a control message, the vehicle-mounted equipment acquires a message structure used for sending the control message and a control data channel used for transmitting the control message by using a vehicle-mounted equipment interconnection communication protocol according to the control message;
in the second situation, if the message content to be sent is a voice message, the vehicle-mounted equipment acquires a message structure used for sending the voice message and a voice data channel used for transmitting the voice message by adopting a vehicle-mounted machine interconnection communication protocol according to the voice message; or
And in the third situation, if the message content to be sent is the reverse control message, the vehicle-mounted equipment acquires the message structure used for sending the reverse control message and the reverse control data channel used for transmitting the reverse control message by adopting the vehicle-mounted equipment interconnection communication protocol according to the reverse control message.
Further optionally, on the basis of the technical solution of the foregoing embodiment, if the sending end device is a mobile terminal and the receiving end device is a vehicle-mounted device, step 100 "in the foregoing embodiment, the sending end device obtains, according to the type of the message content to be sent, a message structure used for sending the message content and a data channel used for transmitting a message corresponding to the message structure by using the vehicle-mounted device interconnection communication protocol", which may specifically include the following three cases:
in the first situation, if the content of the message to be sent is a control message, the mobile terminal obtains a message structure used for sending the control message and a control data channel used for transmitting the control message by adopting a vehicle-machine interconnection communication protocol according to the control message;
in the second situation, if the message content to be sent is a video message, the mobile terminal obtains a message structure used for sending the video message and a video data channel used for transmitting a control message by using a vehicle-machine interconnection communication protocol according to the video message;
and in the third situation, if the message content to be sent is an audio message, the mobile terminal acquires a message structure adopted for sending the audio message and an audio data channel adopted for transmitting the control message by adopting the vehicle-machine interconnection communication protocol according to the audio message.
After the message structure used for acquiring and sending the message content and the Data channel used for transmitting the message corresponding to the message structure by using the in-vehicle interconnection communication protocol described in the above embodiment are used, the sending-end device may write the message content into the Data portion, i.e., Data, in the acquired message structure, so as to obtain the target message. I.e. the target message is the message structure after the data part of the message structure is written into the message content to be sent. And finally, the sending end device can send the target message to the receiving end device through a data channel corresponding to the content of the message to be sent in the CarLife vehicle-machine interconnection communication protocol. Correspondingly, on the side of the receiving end equipment, the receiving end equipment receives the target message, acquires the message content from the target message and carries out corresponding processing according to the message content.
In the message transmission method of this embodiment, the sending-end device obtains, according to the type of the message content to be sent, a message structure used for sending the message content and a data channel used for transmitting a message corresponding to the message structure by using the in-vehicle communication protocol; the sending end equipment writes the message content into the data part of the message structure to obtain a target message; the sending end device sends the target message to the receiving end device through a data channel of the vehicle-machine interconnection communication protocol, so that the receiving end device obtains message content from the received target message and carries out corresponding processing according to the message content. By adopting the method of the embodiment, the vehicle-mounted equipment and the mobile terminal in the prior art can be connected through Bluetooth communication, and can also be connected through the vehicle-mounted machine interconnection communication protocol of the embodiment, so that the communication modes between the mobile terminal and the vehicle-mounted equipment can be enriched, further the transmission of more message contents between the mobile terminal and the vehicle-mounted equipment is enriched, and the use is very convenient.
Fig. 7 is a flowchart of a second message transmission method according to the present invention. As shown in fig. 7, the message transmission method of this embodiment may specifically include:
200. the receiving end equipment receives the target message sent by the sending end equipment through a data channel of the vehicle-machine interconnection communication protocol;
201. the receiving end equipment determines the position of the message content in the target message in the corresponding message structure according to the type of the data channel;
202. and the receiving terminal equipment acquires the message content from the target message according to the position of the message content in the corresponding message structure.
In the message processing method of this embodiment, a name of the in-vehicle device interconnection communication protocol may be defined as carefe, and it may be understood that carefe is a communication protocol for performing message transmission between the mobile terminal and the vehicle-mounted device defined in this application, and the protocol supports that the mobile terminal and the vehicle-mounted device communicate with each other by using a USB.
In the message processing method of this embodiment, the sending-end device may be a mobile terminal or a vehicle-mounted device. The receiving terminal device may also be a mobile terminal or a vehicle-mounted device.
Correspondingly, in the message transmission method of this embodiment, the types of the data channel may include five types: a data channel for control messages, a data channel for video messages, a data channel for audio messages, a data channel for voice messages, and a data channel for anti-control messages. The data channel of the control message is used for transmitting the control message, and the message structure of the corresponding control message adopts the structure shown in the above fig. 2 and table 1; for example, the control message of this embodiment may be a control message that the mobile terminal controls the vehicle-mounted device to open/close an air conditioner of the vehicle machine, or open/close a sunroof of the vehicle machine; and the vehicle-mounted equipment can also control the mobile terminal to make a call or read information of the mobile terminal and other control messages. The data channel of the video message of this embodiment is used for transmitting the video message, and the message structure of the corresponding video message adopts the structure shown in fig. 3 and table 2; for example, the video message of the embodiment may be video encoding data transmitted by the mobile terminal to the vehicle-mounted device, and after the mobile terminal and the vehicle-mounted device communicate through the USB, the mobile terminal needs to project information displayed on a screen onto the vehicle-mounted device in real time in the form of video. I.e. the video message comprises video encoding data of the screen of the mobile terminal. The data channel of the audio message of the present embodiment is used for transmitting the audio message, and the message structure of the corresponding audio message adopts the structure shown in fig. 4 and table 3; the audio information of this embodiment may be Media audio stream such as music data, or may also be audio stream for transmitting Text to language (TTS) such as navigation voice broadcast data. For example, Pulse Code Modulation (PCM) streams may be used for mobile terminals to transmit music and navigation voice broadcasts, respectively, to in-vehicle devices. The data channel of the voice message of this embodiment is used for transmitting the voice message, and the message structure of the corresponding voice message adopts the structure shown in fig. 5 and table 4; for example, the voice message of this embodiment may be user voice data recorded by a vehicle-mounted device and a vehicle-mounted microphone (mic) and transmitted to the mobile terminal by the vehicle-mounted device. The data channel of the reverse control message of this embodiment is used for transmitting the reverse control message, and the message structure of the corresponding reverse control message adopts the structure as shown in fig. 6 and table 5. For example, the reverse control message of the present embodiment may include a reverse control message such as a touch event or a key event on the vehicle side, which is sent to the mobile terminal by the vehicle-mounted device.
According to the above description of the embodiments, it is possible to know each type of corresponding target message, and determine the position of the message content in the target message in the message structure according to the corresponding message structure; so that the message content can be obtained from the target message according to the position of the message content in the message structure.
The message transmission method of this embodiment is different from the embodiment shown in fig. 1 in that: the embodiment shown in fig. 1 above describes the technical solution of the present invention on the side of the sending end device; the message transmission method of the embodiment describes the technical scheme of the invention on the side of the receiving end equipment; the specific implementation manner is the same as that of the embodiment shown in fig. 1, and the details of the embodiment shown in fig. 1 can be referred to, which are not described herein again.
In the message transmission method of this embodiment, the receiving end device receives a target message sent by the sending end device through a data channel of the in-vehicle interconnection communication protocol; the receiving end equipment determines the position of the message content in the target message in the corresponding message structure according to the type of the data channel; and the receiving terminal equipment acquires the message content from the target message according to the position of the message content in the corresponding message structure. By adopting the method of the embodiment, the vehicle-mounted equipment and the mobile terminal in the prior art can be connected through Bluetooth communication, and can also be connected through the vehicle-mounted machine interconnection communication protocol of the embodiment, so that the communication modes between the mobile terminal and the vehicle-mounted equipment can be enriched, further the transmission of more message contents between the mobile terminal and the vehicle-mounted equipment is enriched, and the use is very convenient.
Further optionally, on the basis of the technical solution of the embodiment shown in fig. 7, where in step 201, "the receiving end device determines the position of the message content in the target message in the corresponding message structure according to the type of the data channel", specifically, the method may include the following steps:
(1) the receiving end equipment determines the type of the message content according to the type of the data channel;
(2) and the receiving terminal equipment determines the position of the message content in the target message in the corresponding message structure according to the type of the message content.
From the above description of the embodiments, it can be known that the type of the data channel in the present embodiment corresponds to the type of the message content one to one. According to the type of the data channel, the type of the transmitted message content can be directly determined, and according to the type of the message content, what structure the adopted message structure is can be determined, so that the position of the message content in the message structure can be determined, and the message content can be accurately acquired from the target message.
Further optionally, on the basis of the technical solution of the embodiment shown in fig. 7, if the receiving end device is a mobile terminal and the sending end device is a vehicle-mounted device, the type of the corresponding data channel includes a control data channel, a voice data channel, or a reverse control data channel; the type of the corresponding message content is control message, voice message or anti-control message;
if the receiving end equipment is vehicle-mounted equipment and the sending end equipment is a mobile terminal, the type of the corresponding data channel comprises a control data channel, a video data channel or an audio data channel; the type of the corresponding message content is a control message, a video message, or an audio message. For details, reference may be made to the above description of the related embodiments, which are not repeated herein.
Fig. 8 is a block diagram of an embodiment of a transmitting-end device of the present invention. As shown in fig. 8, the sending-end device of this embodiment may specifically include: an acquisition module 10, a writing module 11 and a sending module 12.
The obtaining module 10 is configured to obtain, according to a type of a message content to be sent, a message structure used for sending the message content and a data channel used for transmitting a message corresponding to the message structure by using an in-vehicle communication protocol; the writing module 11 is configured to write the message content into the data portion of the message structure acquired by the acquiring module 10, so as to obtain a target message; the sending module 12 is configured to send the target message obtained by the writing module 11 to the receiving end device through the data channel of the in-vehicle interconnection communication protocol obtained by the obtaining module 10, so that the receiving end device obtains message content from the received target message and performs corresponding processing according to the message content.
The sending end device of this embodiment, as for the implementation mechanism and the technical effect of implementing transmission of a message by using the module, is the same as the implementation of the related method embodiment, and details of the implementation mechanism and the technical effect of the related method embodiment may be referred to and are not described herein again.
Further optionally, in the sending end device in the embodiment shown in fig. 8, if the sending end device is a vehicle-mounted device and the receiving end device is a mobile terminal, the obtaining module 10 is specifically configured to:
if the message content to be sent is a control message, acquiring a message structure adopted by sending the control message and a control data channel adopted by transmitting the control message by adopting a vehicle-machine interconnection communication protocol according to the control message;
if the message content to be sent is a voice message, acquiring a message structure adopted by the voice message and a voice data channel adopted by the vehicle-machine interconnection communication protocol for transmitting the voice message according to the voice message; or
And if the content of the message to be transmitted is the reverse control message, acquiring a message structure adopted by the reverse control message and a reverse control data channel adopted by the vehicle-machine interconnection communication protocol for transmitting the reverse control message according to the reverse control message.
Further optionally, in the sending-end device in the foregoing embodiment, the control message includes at least one of vehicle-mounted data, a bluetooth automatic pairing message, and a video initialization message; the voice message comprises voice data of the user recorded by the vehicle-mounted equipment; the counter control message comprises a touch event or a key event of the user, which is collected by the vehicle-mounted equipment.
Further optionally, in the sending end device in the embodiment shown in fig. 8, if the sending end device is a mobile terminal and the receiving end device is a vehicle-mounted device, the obtaining module 10 is specifically configured to:
if the message content to be sent is a control message, acquiring a message structure adopted by sending the control message and a control data channel adopted by transmitting the control message by adopting a vehicle-machine interconnection communication protocol according to the control message;
if the message content to be sent is a video message, acquiring a message structure adopted by sending the video message and a video data channel adopted by transmitting a control message by adopting a vehicle-machine interconnection communication protocol according to the video message;
and if the message content to be sent is an audio message, acquiring a message structure adopted by sending the audio message and an audio data channel adopted by transmitting a control message by adopting an on-board communication protocol according to the audio message.
Further optionally, in the sending end device of the foregoing embodiment, the video message includes video coded data of a screen of the mobile terminal; the audio message includes at least one of music data and navigation voice broadcast data at the mobile terminal side.
Fig. 9 is a block diagram of an embodiment of a receiving end device of the present invention. As shown in fig. 9, the receiving end device of this embodiment includes: a receiving module 20, a determining module 21 and an obtaining module 22.
The receiving module 20 is configured to receive a target message sent by a sending end device through a data channel of the in-vehicle interconnection communication protocol; the determining module 21 is configured to determine, according to the type of the data channel of the target message received by the receiving module 20, a position of a message content in the target message in a corresponding message structure; the obtaining module 22 is configured to obtain the message content from the target message according to the position of the message content in the corresponding message structure determined by the determining module 21.
The receiving end device of this embodiment, which implements the mechanism and technical effect of implementing message transmission by using the module, is the same as the implementation of the related method embodiment, and reference may be made to the description of the related method embodiment in detail, which is not described herein again.
Further optionally, on the basis of the technical solution of the embodiment shown in fig. 9, the determining module 21 is specifically configured to:
determining the type of the message content according to the type of the data channel of the target message received by the receiving module 20;
and determining the position of the message content in the target message in the corresponding message structure according to the type of the message content.
Further optionally, on the basis of the technical solution of the above embodiment, if the receiving end device is a mobile terminal and the sending end device is a vehicle-mounted device, the type of the corresponding data channel includes a control data channel, a voice data channel, or a reverse control data channel; the type of the corresponding message content is control message, voice message or anti-control message;
if the receiving end equipment is vehicle-mounted equipment and the sending end equipment is a mobile terminal, the type of the corresponding data channel comprises a control data channel, a video data channel or an audio data channel; the type of the corresponding message content is a control message, a video message, or an audio message.
Fig. 10 is a block diagram of an embodiment of a message transmission system of the present invention. As shown in fig. 10, the message transmission system of this embodiment may specifically include a sending end device 30 and a receiving end device 40; the sending end device 30 is in communication connection with the receiving end device 40; the sending end device 30 adopts the sending end device of the embodiment shown in fig. 8, and the receiving end device 40 adopts the receiving end device of the embodiment shown in fig. 9. The message transmission method in the embodiments shown in fig. 1 and fig. 7 may be specifically adopted to perform message transmission, and reference may be made to the description of the related embodiments for details, which are not described herein again.
The method and apparatus provided by the embodiments of the present invention may be embodied in a computer program configured and executed in an electronic device. As shown in fig. 11, the electronic device may include one or more processors 800, further include a memory 801 and one or more programs, and the embodiment shown in fig. 8 includes one processor 800 as an example to describe the technical solution of the present invention. Where the one or more programs are stored in memory 801 for execution by the one or more processors 800 to implement the method flows and/or device operations illustrated in the above-described embodiments of the invention. For example, the method flows performed by the one or more processors 800 described above may include:
according to the type of the message content to be sent, acquiring a message structure used for sending the message content and a data channel used for transmitting a message corresponding to the message structure by adopting a vehicle-mounted device interconnection communication protocol;
writing the message content into a data part of the message structure to obtain a target message;
and sending the target message to receiving end equipment through the data channel of the vehicle-machine interconnection communication protocol so that the receiving end equipment can obtain the message content from the received target message and carry out corresponding processing according to the message content.
Alternatively, the method flows executed by the one or more processors 800 may include:
receiving a target message sent by sending end equipment through a data channel of a vehicle-machine interconnection communication protocol;
determining the position of the message content in the target message in the corresponding message structure according to the type of the data channel;
and acquiring the message content from the target message according to the position of the message content in the corresponding message structure.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
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 made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (17)
1. A method for message transmission, the method comprising:
the method comprises the steps that a sending end device obtains a message structure used for sending message content and a data channel used for transmitting a message corresponding to the message structure by adopting a vehicle-mounted device interconnection communication protocol according to the type of the message content to be sent;
the sending end equipment writes the message content into a data part of the message structure to obtain a target message;
and the sending end equipment sends the target message to receiving end equipment through the data channel of the vehicle-machine interconnection communication protocol so that the receiving end equipment can obtain the message content from the received target message and carry out corresponding processing according to the message content.
2. The method according to claim 1, wherein if the sending end device is a vehicle-mounted device and the receiving end device is a mobile terminal, the sending end device obtains, according to a type of a message content to be sent, a message structure used for sending the message content and a data channel used for transmitting a message corresponding to the message structure by using the vehicle-mounted device interconnection communication protocol, and specifically includes:
if the message content to be sent is a control message, the vehicle-mounted equipment acquires a message structure used for sending the control message and a control data channel used for transmitting the control message by adopting the vehicle-mounted equipment interconnection communication protocol according to the control message;
if the message content to be sent is a voice message, the vehicle-mounted equipment acquires a message structure adopted for sending the voice message and a voice data channel adopted for transmitting the voice message by adopting the vehicle-mounted equipment interconnection communication protocol according to the voice message; or
And if the message content to be sent is a reverse control message, the vehicle-mounted equipment acquires a message structure used for sending the reverse control message and a reverse control data channel used for transmitting the reverse control message by adopting the vehicle-mounted equipment interconnection communication protocol according to the reverse control message.
3. The method of claim 2, wherein the control message comprises at least one of vehicle data, a bluetooth auto-pairing message, and a video initialization message; the voice message comprises voice data of a user recorded by the vehicle-mounted equipment; the anti-control message comprises a touch event or a key event of the user, which is acquired by the vehicle-mounted equipment.
4. The method according to claim 1, wherein if the sending end device is a mobile terminal and the receiving end device is a vehicle-mounted device, the sending end device obtains, according to a type of a message content to be sent, a message structure used for sending the message content and a data channel used for transmitting a message corresponding to the message structure by using a vehicle-mounted device interconnection communication protocol, and specifically includes:
if the message content to be sent is a control message, the mobile terminal acquires a message structure adopted for sending the control message and a control data channel adopted for transmitting the control message by adopting the vehicle-machine interconnection communication protocol according to the control message;
if the message content to be sent is a video message, the mobile terminal acquires a message structure adopted for sending the video message and a video data channel adopted for transmitting the control message by adopting the vehicle-machine interconnection communication protocol according to the video message;
and if the message content to be sent is an audio message, the mobile terminal acquires a message structure adopted for sending the audio message and an audio data channel adopted for transmitting the control message by adopting the vehicle-machine interconnection communication protocol according to the audio message.
5. The method of claim 4, wherein the video message comprises video encoding data of a screen of the mobile terminal; the audio message includes at least one of music data and navigation voice broadcast data at the mobile terminal side.
6. A method for message transmission, the method comprising:
the receiving end equipment receives the target message sent by the sending end equipment through a data channel of the vehicle-machine interconnection communication protocol;
the receiving end equipment determines the position of the message content in the target message in the corresponding message structure according to the type of the data channel;
and the receiving terminal equipment acquires the message content from the target message according to the position of the message content in the corresponding message structure.
7. The method according to claim 6, wherein the determining, by the receiving end device, a position of a message content in the target message in a corresponding message structure according to the type of the data channel specifically includes:
the receiving end equipment determines the type of the message content according to the type of the data channel;
and the receiving terminal equipment determines the position of the message content in the target message in the corresponding message structure according to the type of the message content.
8. The method according to claim 6 or 7, wherein if the receiving end device is a mobile terminal and the sending end device is a vehicle-mounted device, the type of the corresponding data channel includes a control data channel, a voice data channel, or a reverse control data channel; the type of the corresponding message content is control message, voice message or anti-control message;
if the receiving end equipment is vehicle-mounted equipment and the sending end equipment is a mobile terminal, the type of the corresponding data channel comprises a control data channel, a video data channel or an audio data channel; the type of the corresponding message content is a control message, a video message or an audio message.
9. A transmitting end device, characterized in that the device comprises:
the device comprises an acquisition module, a processing module and a sending module, wherein the acquisition module is used for acquiring a message structure used for sending the message content and a data channel used for transmitting a message corresponding to the message structure by adopting a vehicle-mounted device interconnection communication protocol according to the type of the message content to be sent;
a writing module, configured to write the message content into a data portion of the message structure to obtain a target message;
and the sending module is used for sending the target message to receiving end equipment through the data channel of the vehicle-machine interconnection communication protocol so that the receiving end equipment can obtain the message content from the received target message and carry out corresponding processing according to the message content.
10. The device according to claim 9, wherein if the sending end device is a vehicle-mounted device and the receiving end device is a mobile terminal, the obtaining module is specifically configured to:
if the message content to be sent is a control message, acquiring a message structure adopted for sending the control message and a control data channel adopted for transmitting the control message by adopting the vehicle-machine interconnection communication protocol according to the control message;
if the message content to be sent is a voice message, acquiring a message structure adopted for sending the voice message and a voice data channel adopted for transmitting the voice message by adopting the vehicle-mounted device interconnection communication protocol according to the voice message; or
And if the message content to be sent is a reverse control message, acquiring a message structure adopted by sending the reverse control message and a reverse control data channel adopted by transmitting the reverse control message by adopting the vehicle-machine interconnection communication protocol according to the reverse control message.
11. The device of claim 10, wherein the control message comprises at least one of vehicle data, a bluetooth auto-pairing message, and a video initialization message; the voice message comprises voice data of a user recorded by the vehicle-mounted equipment; the anti-control message comprises a touch event or a key event of the user, which is acquired by the vehicle-mounted equipment.
12. The device according to claim 9, wherein if the sending end device is a mobile terminal and the receiving end device is a vehicle-mounted device, the obtaining module is specifically configured to:
if the message content to be sent is a control message, acquiring a message structure adopted for sending the control message and a control data channel adopted for transmitting the control message by adopting the vehicle-machine interconnection communication protocol according to the control message;
if the message content to be sent is a video message, acquiring a message structure adopted by sending the video message and a video data channel adopted by transmitting the control message by adopting the vehicle-mounted device interconnection communication protocol according to the video message;
and if the message content to be sent is an audio message, acquiring a message structure adopted by sending the audio message and an audio data channel adopted by transmitting the control message by adopting the vehicle-mounted interconnection communication protocol according to the audio message.
13. The apparatus according to claim 12, wherein the video message comprises video encoding data of a screen of the mobile terminal; the audio message includes at least one of music data and navigation voice broadcast data at the mobile terminal side.
14. A receiving-end device, characterized in that the device comprises:
the receiving module is used for receiving a target message sent by the sending end equipment through a data channel of the vehicle-machine interconnection communication protocol;
the determining module is used for determining the position of the message content in the target message in the corresponding message structure according to the type of the data channel;
and the acquisition module is used for acquiring the message content from the target message according to the position of the message content in the corresponding message structure.
15. The device according to claim 14, wherein the determining module is specifically configured to:
determining the type of the message content according to the type of the data channel;
and determining the position of the message content in the target message in the corresponding message structure according to the type of the message content.
16. The device according to claim 14 or 15, wherein if the receiving end device is a mobile terminal and the sending end device is a vehicle-mounted device, the type of the corresponding data channel includes a control data channel, a voice data channel, or a reverse control data channel; the type of the corresponding message content is control message, voice message or anti-control message;
if the receiving end equipment is vehicle-mounted equipment and the sending end equipment is a mobile terminal, the type of the corresponding data channel comprises a control data channel, a video data channel or an audio data channel; the type of the corresponding message content is a control message, a video message or an audio message.
17. A message transmission system is characterized in that the message transmission system comprises a sending terminal device and a receiving terminal device; the sending end equipment is in communication connection with the receiving end equipment; the sending end device adopts the sending end device as claimed in any one of claims 9 to 13, and the receiving end device adopts the receiving end device as claimed in any one of claims 14 to 16.
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| CN110868697B (en) * | 2019-11-19 | 2023-11-21 | 深圳创维汽车智能有限公司 | Interconnection method and device of vehicle and multiple mobile devices and storage medium |
| CN114629580B (en) * | 2022-05-17 | 2022-09-13 | 阿里巴巴达摩院(杭州)科技有限公司 | Low-orbit satellite link simulation method and device and electronic equipment |
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