CN113067855A - Communication method and device and vehicle - Google Patents

Communication method and device and vehicle Download PDF

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Publication number
CN113067855A
CN113067855A CN202110272356.0A CN202110272356A CN113067855A CN 113067855 A CN113067855 A CN 113067855A CN 202110272356 A CN202110272356 A CN 202110272356A CN 113067855 A CN113067855 A CN 113067855A
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China
Prior art keywords
vehicle
control
request
local application
application program
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Chinese (zh)
Inventor
钟振昌
康二伟
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Guangzhou Xiaopeng Motors Technology Co Ltd
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Guangzhou Xiaopeng Motors Technology Co Ltd
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Priority to CN202110272356.0A priority Critical patent/CN113067855A/en
Publication of CN113067855A publication Critical patent/CN113067855A/en
Priority to PCT/CN2022/079982 priority patent/WO2022188814A1/en
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • 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
    • H04L67/50—Network services
    • H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40208—Bus networks characterized by the use of a particular bus standard
    • H04L2012/40215—Controller Area Network CAN

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Small-Scale Networks (AREA)

Abstract

The embodiment of the invention provides a communication method, a communication device and a vehicle, wherein the method comprises the following steps: acquiring a control request generated by a local application program in the vehicle, wherein the local application program is a local application program based on service-oriented architecture SOA protocol communication; adopting an SOA protocol on the basis of a Controller Area Network (CAN) in the vehicle to send the control request to a server; after a control response message returned by the server and received by the vehicle communication module is subsequently acquired through the CAN, a control signal CAN be directly sent to a corresponding actuator through the CAN, and then the control of the vehicle function CAN be realized; therefore, when the vehicle function needs to be expanded, only the parameters related to the function to be expanded in the local application program need to be changed, and the expandability of the vehicle function is enhanced.

Description

Communication method and device and vehicle
Technical Field
The invention relates to the technical field of automobiles, in particular to a communication method, a communication device and an automobile.
Background
An SOA (Service-oriented architecture) is a component model that splits different functional units of an application (called services) and ties them together through well-defined interfaces and protocols between the services. And furthermore, the reusability of the services can be improved, the business logic can be combined, and each service can be reasonably distributed according to the service condition, so that the services are changed into standard, high-performance and high-availability services.
With the gradual development of the vehicle-mounted Ethernet technology, the SOA is gradually introduced into the design of vehicle software; the vehicle functions, such as vehicle body function control, are controlled by adopting an SOA (service oriented architecture) protocol on the basis of the Ethernet. Such a disadvantage of implementing the SOA is that, when the control function for the vehicle device needs to be extended, the vehicle software needs to be re-developed, and the mapping relationship between the instruction sent by the vehicle software and the actuator needs to be re-constructed; resulting in poor scalability of vehicle functions.
Disclosure of Invention
The embodiment of the invention provides a communication method for improving the expandability of vehicle functions.
The embodiment of the invention also provides a communication device and a vehicle, so as to ensure the implementation of the method.
In order to solve the above problem, the present invention discloses a communication method applied in a vehicle, the method comprising: acquiring a control request generated by a local application program in the vehicle, wherein the local application program is a local application program based on service-oriented architecture SOA protocol communication; and on the basis of a controller area network CAN in the vehicle, an SOA protocol is adopted to send the control request to a server.
Optionally, the sending the control request to a server by using an SOA protocol based on a controller area network CAN in the vehicle includes: based on a CAN communication protocol, packaging the control request into a CAN request message; and sending the CAN request message to a vehicle communication module through a CAN, and sending the CAN request message to a server through the vehicle communication module.
Optionally, the encapsulating the control request into a CAN request message based on the CAN communication protocol includes: based on a CAN communication protocol, packaging the control request into continuous first data to be processed; and performing packet processing on the first to-be-processed data to obtain a plurality of CAN request messages.
Optionally, the sending the CAN request message to a vehicle communication module through a CAN, and the vehicle communication module sends the CAN request message to a server, including: and calling a CAN interface to send the CAN request message to a vehicle communication module in the vehicle, so that the vehicle communication module sends the CAN request message to a server.
The embodiment of the invention also provides a communication method, which is applied to a vehicle and comprises the following steps: acquiring a first control response message received by a vehicle communication module through a Controller Area Network (CAN) in the vehicle; the first control response message is generated by the server based on a control request generated by a local application program in the vehicle and returned to the vehicle communication module, and the local application program is a local application program based on service-oriented architecture SOA protocol communication; sending a control signal corresponding to the first control response message to a corresponding actuator through the CAN; and returning a second control response message to the local application program based on the execution result of the actuator.
Optionally, the sending the control signal corresponding to the first control response message to the corresponding actuator includes: packaging the plurality of first CAN response messages to obtain continuous second data to be processed; extracting a control signal from the second data to be processed; and sending the control signal to an actuator corresponding to the identification information, and executing the operation corresponding to the control signal by the actuator.
Optionally, the returning a second control response message to the local application program based on the execution result of the actuator includes: generating continuous third data to be processed by adopting the execution result of the actuator; and analyzing the third data to be processed to obtain a second control response message and returning the second control response message to the local application program.
The embodiment of the invention also provides a communication device, which is applied to a vehicle, and the device comprises:
the request acquisition module is used for acquiring a control request generated by a local application program in the vehicle, wherein the local application program is a local application program based on service-oriented architecture SOA protocol communication;
and the request sending module is used for sending the control request to a server by adopting an SOA (service oriented architecture) protocol on the basis of a Controller Area Network (CAN) in the vehicle.
Optionally, the request sending module includes:
the request encapsulation submodule is used for encapsulating the control request into a CAN request message based on a CAN communication protocol;
and the message sending submodule is used for sending the request CAN message to a vehicle communication module through a CAN and sending the request CAN message to a server through the vehicle communication module.
Optionally, the request encapsulation sub-module is configured to encapsulate the control request into continuous first to-be-processed data based on a CAN communication protocol; and performing packet processing on the first to-be-processed data to obtain a plurality of CAN request messages.
Optionally, the message sending sub-module is configured to call a CAN interface to send the CAN request message to a vehicle communication module in the vehicle, so that the vehicle communication module sends the CAN request message to a server.
The embodiment of the invention also provides a communication device, which is applied to a vehicle and comprises the following components:
the message receiving module is used for acquiring a first control response message received by the vehicle communication module through a Controller Area Network (CAN) in the vehicle; the first control response message is generated by the server based on a control request generated by a local application program in the vehicle and returned to the vehicle communication module, and the local application program is a local application program based on service-oriented architecture SOA protocol communication;
the message sending module is used for sending the control signal corresponding to the first control response message to the corresponding actuator through the CAN; and returning a second control response message to the local application program based on the execution result of the actuator.
Optionally, the first control response message includes a plurality of first CAN response messages, and the message sending module includes: the data packet module is used for packaging the plurality of first CAN response messages to obtain continuous second data to be processed; the signal extraction submodule is used for extracting a control signal from the second data to be processed; and the signal sending submodule is used for sending the control signal to an actuator corresponding to the identification information, and the actuator executes the operation corresponding to the control signal.
Optionally, the message sending module includes: the data generation submodule is used for generating continuous third data to be processed by adopting the execution result of the actuator; and the message returning submodule is used for analyzing the third to-be-processed data to obtain a second control response message and returning the second control response message to the local application program.
Embodiments of the present invention also provide a vehicle, including a memory, and one or more programs, where the one or more programs are stored in the memory, and configured to be executed by the one or more processors includes a processor configured to perform any of the communication methods according to the embodiments of the present invention.
Embodiments of the present invention further provide a readable storage medium, wherein when the instructions in the storage medium are executed by a processor of a vehicle, the vehicle is enabled to execute the communication method according to any one of the embodiments of the present invention.
Compared with the prior art, the embodiment of the invention has the following advantages:
in the embodiment of the invention, a control request generated by a local application program in the vehicle can be acquired, wherein the local application program is a local application program based on service-oriented architecture SOA protocol communication; then, on the basis of a controller area network CAN in the vehicle, an SOA protocol is adopted to send the control request to a server; after a control response message returned by the server and received by the vehicle communication module is subsequently acquired through the CAN, a control signal CAN be directly sent to a corresponding actuator through the CAN, and then the control of the vehicle function CAN be realized; therefore, when the vehicle function needs to be expanded, only the parameters related to the function to be expanded in the local application program need to be changed, and the expandability of the vehicle function is enhanced.
Drawings
FIG. 1 is a flow chart of the steps of one embodiment of a method of communication of the present invention;
FIG. 2 is a flow chart of the steps of an alternate embodiment of a method of communication of the present invention;
FIG. 3 is a flow chart of the steps of an alternate embodiment of a method of communication of the present invention;
fig. 4 is a schematic diagram of a SOA protocol network structure based on CAN according to an embodiment of the present invention;
FIG. 5 is a block diagram of an embodiment of a communication device according to the present invention;
FIG. 6 is a block diagram of an alternate embodiment of a communication device of the present invention;
FIG. 7 is a block diagram of another embodiment of a communications device of the present invention;
fig. 8 is a block diagram of an alternative embodiment of a communication device of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The communication method provided by the embodiment of the invention is applied to vehicles; a vehicle has domain controllers deployed therein, each of which may control one or more functions of the vehicle. The domain controller and the controller deployed in the server may communicate with each other by using an SOA communication protocol based on a CAN (controller area network) in the vehicle, thereby controlling functions of the vehicle. After the control response message returned by the server and received by the vehicle communication module is acquired through the CAN, the corresponding control signal CAN be directly sent to the corresponding actuator through the CAN, so that the control of the vehicle function CAN be realized; therefore, when the vehicle function needs to be expanded, only the parameters related to the function to be expanded in the local application program need to be changed, and the expandability of the vehicle function is enhanced.
The functions of the domain controller in the vehicle can be realized by a client program (which can be called as a local application program) deployed in the local of the domain controller; wherein, the functions of different domain controllers can be realized by different local application programs. The functions of the controller may be implemented by a server-side program (which may be referred to as a service) deployed in the server; wherein, the functions of different controllers can be realized by different services in the server.
Control of vehicle functions may include a variety of, among others, control of body functions; for example, the control of the power function, such as the control of the air conditioning function, such as the control of the vehicle light function, such as the control of the rearview mirror function, such as the control of the seat function, etc., which is not limited in this respect by the embodiments of the present invention.
The vehicle communication module may refer to a module for a vehicle to communicate with other devices, such as an on-board T-BOX (telematics), and the embodiment of the present invention is not limited thereto.
The communication method provided by the embodiment of the invention CAN be executed by a controller with a CAN interface in a vehicle, the controller CAN communicate with a local application program deployed in a domain controller through Ethernet, and CAN communicate with the controller deployed in a server through a CAN bus by a vehicle communication module.
For convenience of description, a controller that executes the communication method provided by the embodiment of the present invention may be referred to as a target controller. The target controller may be any controller independent from the domain controller, or may be a domain controller of all domain controllers, which is not limited in this embodiment of the present invention.
The following describes a communication method in the embodiment of the present invention, taking a vehicle transmission message and a vehicle reception message as examples.
Referring to fig. 1, a flow chart of the steps of one communication method embodiment of the present invention is shown.
And 102, acquiring a control request generated by a local application program in the vehicle, wherein the local application program is a local application program based on service-oriented architecture SOA protocol communication.
And step 104, adopting an SOA protocol on the basis of a Controller Area Network (CAN) in the vehicle, and sending the control request to a server.
In the embodiment of the invention, the local application deployed in the domain controller can be a local application based on SOA protocol communication.
When a user needs to control a certain function in the vehicle, the control operation corresponding to the function can be executed; which in turn may trigger the local application to generate a control request. The user can execute control operation through touch operation in a control screen in the vehicle, and can also execute control operation through inputting a voice command; the embodiments of the present invention are not limited in this regard.
After the control request generated by the local application program, the control request can be sent to the target controller; and the target controller can acquire the control request generated by the local application program. Wherein the local application may send the control request to the target controller over the ethernet.
Then the target controller CAN adopt SOA protocol on the basis of CAN to send the control request to a server; the control request CAN be packaged according to a SOA protocol based on the CAN, and then the packaged control request is sent to the server through the vehicle communication module by the CAN.
In summary, in the embodiment of the present invention, a control request generated by a local application in the vehicle may be obtained, where the local application is a local application based on service oriented architecture SOA protocol communication; then, on the basis of a controller area network CAN in the vehicle, an SOA protocol is adopted to send the control request to a server; after a control response message returned by the server and received by the vehicle communication module is subsequently acquired through the CAN, a control signal CAN be directly sent to a corresponding actuator through the CAN, and then the control of the vehicle function CAN be realized; therefore, when the vehicle function needs to be expanded, only the parameters related to the function to be expanded in the local application program need to be changed, and the expandability of the vehicle function is enhanced.
Referring to fig. 2, a flow chart of the steps of an alternative embodiment of a communication method of the present invention is shown.
Step 202, acquiring a first control response message received by a vehicle communication module through a Controller Area Network (CAN) in the vehicle; the first control response message is generated by the server based on a control request generated by a local application program in the vehicle and returned to the vehicle communication module, and the local application program is a local application program based on service-oriented architecture SOA protocol communication.
Step 204, sending a control signal corresponding to the first control response message to a corresponding actuator through the CAN; and returning a second control response message to the local application program based on the execution result of the actuator.
In the embodiment of the invention, after receiving a control request sent by a target controller in a vehicle, a server can analyze the control request and determine a target service for processing the control request; then the target service processes the control request to generate a corresponding control response message; and returns the control response message to the target controller of the vehicle. For convenience of subsequent distinction, a control response message generated by processing the control request by the target service may be referred to as a first control response message.
And after the server returns the first control response message, the vehicle communication module of the vehicle CAN receive the first control response message and then send the first control response message to the target controller through the CAN. Then, the target controller may analyze the first control response message to extract a control signal, and then send the control signal to a corresponding actuator through the CAN to instruct the actuator to execute an operation corresponding to the control signal.
After the actuator executes the operation corresponding to the control signal, the execution result CAN be returned to the target controller through the CAN; wherein the execution result comprises: a successful execution result or a failed execution result. The successful execution result may refer to an execution result corresponding to the control signal being successfully executed by the actuator, and the failed execution result may refer to an execution result corresponding to the control information being unsuccessfully executed by the actuator.
The target controller may then generate a second control response message based on the execution result; the second control response message is then returned to the local application in the vehicle. And then the local application program in the vehicle can output the control result of the user for the vehicle function according to the second control response message, so that the user can know whether the control on the vehicle function is successful or not. The local application program can send the control result to the display equipment of the vehicle, and the display equipment of the vehicle displays the control result; the control result may also be sent to a voice assistant in the vehicle, and the voice assistant may broadcast the control result, and the like.
In summary, in the embodiment of the present invention, after the server receives the control request of the local application in the vehicle, a first control response message may be generated for the control request and returned to the vehicle communication module; further, a first control response message received by a vehicle communication module CAN be acquired through a Controller Area Network (CAN) in the vehicle, and then a control signal corresponding to the first control response message is sent to a corresponding actuator; then the control signal is directly sent to the corresponding actuator through the CAN, and the control on the vehicle function CAN be realized; therefore, when the vehicle function needs to be expanded, only the parameters related to the function to be expanded in the local application program need to be changed, and the expandability of the vehicle function is enhanced. Then, a second control response message can be returned to the local application program in the vehicle based on the execution result of the actuator, so that the control result of the vehicle function can be fed back to the user through the local application program, and the user experience is improved.
The communication method of the embodiment of the present invention is described below in conjunction with two processes of sending and receiving messages by a vehicle.
Referring to fig. 3, a flow chart of steps of an alternative embodiment of a communication method of the present invention is shown.
And 302, acquiring a control request generated by a local application program in the vehicle, wherein the local application program is a local application program based on service-oriented architecture SOA protocol communication.
In this embodiment of the present invention, the local application may generate a control request according to a control operation of a user, where the control request may include multiple types, such as a window opening request, an air conditioner closing request, a vehicle door closing request, a rearview mirror adjustment request, and the like, and this is not limited in this embodiment of the present invention.
Then the local application program CAN send the control request to a target controller of the vehicle, then the target controller processes the control request, and an SOA protocol is adopted on the basis of a Controller Area Network (CAN) in the vehicle to send the control request to a server; reference may be made to steps 304 to 306:
and step 304, packaging the control request into a CAN request message based on a CAN communication protocol.
And step 306, sending the CAN request message to a vehicle communication module through a CAN, and sending the CAN request message to a server through the vehicle communication module.
In the embodiment of the invention, the control request needs to be sent through the CAN interface, so the control request CAN be encapsulated into the CAN message, and then the CAN message is sent to the vehicle communication module through the CAN, and the vehicle communication module server is used for sending the control request to the vehicle communication module server.
The step 304 may include the following substeps 3042-S3044:
and a substep S3042, packaging the control request into continuous first data to be processed based on the CAN communication protocol.
And the substep S3044 of performing packet processing on the first to-be-processed data to obtain a plurality of CAN request messages.
In the embodiment of the invention, the control request CAN be encapsulated into continuous data according to the data format of the SOA protocol transmission data based on the CAN, so that the first data to be processed CAN be obtained. Because the data volume of each transmission of the CAN is limited, in order to send a control request to the server through the CAN, the continuous first data to be processed CAN be subjected to sub-packet processing based on the CAN communication protocol, and the continuous first data to be processed is divided into a plurality of CAN messages. In order to facilitate subsequent distinction, the first to-be-processed data may be subjected to packet processing, and an obtained CAN message is referred to as a CAN request message.
In an example, the data format of the SOA protocol transmission data based on CAN may be as shown in table 1:
TABLE 1
Field(s) Server ID Data length Terminal ID Protocol version Type of information Return code Data of
**** **** **** **** **** **** ****
Of course, the data format of the SOA protocol transmission data based on CAN may also include other forms, such as may also include other fields, or the ordering of these fields is different; and the number of bytes corresponding to each field can be set as required, which is not limited in the embodiment of the present invention.
Wherein, the first data to be processed may include a plurality of bytes, such as 128 bytes; if the number of bytes transmitted by the CAN is 8 bytes at a time, the first to-be-processed data may be divided into 16 CAN request messages.
The step 306 may include: and calling a CAN interface to send the CAN request message to a vehicle communication module in the vehicle, so that the vehicle communication module sends the CAN request message to a server. The CAN interface used for sending the CAN request message CAN be determined; then calling a CAN interface to send the CAN request message to a vehicle communication module through physical hardware corresponding to the CAN interface; and the vehicle communication module sends the CAN request message to a server. The vehicle communication module can be a mobile network communication module or a WIFI communication module; of course, other communication modules may also be used, and the embodiment of the present invention is not limited thereto.
In an optional embodiment of the present invention, a target application may be deployed in the target controller, and the target application may implement that the control request is sent to the server by using an SOA protocol based on a controller area network CAN in the vehicle. The target application program may construct a network structure of a SOA protocol based on a CAN, and fig. 4 shows a schematic diagram of a SOA protocol network structure based on a CAN according to an embodiment of the present invention; the SOA protocol based on the CAN comprises an adaptation layer, a transmission layer, an abstraction layer and a drive layer, wherein the plurality of logic layers are arranged in the SOA protocol; the plurality of logic layers CAN be used for transmitting the control request to the server by adopting an SOA (service oriented architecture) protocol on the basis of a Controller Area Network (CAN) in the vehicle. The following may be used:
after the local application program generates a control request according to the control operation of the user, the control request can be sent to the adaptation layer; acquiring a control request generated by a local application program in the vehicle by an adaptation layer (namely executing the step 302); the control request is then encapsulated into a continuous first data to be processed based on the CAN communication protocol (i.e., performing substep S3042). Then, the first to-be-processed data is sent to the transmission layer, and the transmission layer performs packet processing on the first to-be-processed data to obtain a plurality of CAN request messages (i.e., performing substep S3044). The transmission layer sends the CAN request messages to an abstract layer, and the abstract layer calls a CAN interface; and then the driving layer CAN drive the physical hardware corresponding to the CAN interface, so that the CAN message is sent to a vehicle communication module in the vehicle.
Step 308, acquiring a first control response message received by a vehicle communication module through a Controller Area Network (CAN) in the vehicle; the first control response message is generated by the server based on a control request generated by a local application program in the vehicle and returned to the vehicle communication module, and the local application program is a local application program based on service-oriented architecture SOA protocol communication.
In the embodiment of the invention, after the server receives a plurality of CAN request messages corresponding to the control request sent by the target controller, the plurality of CAN request messages CAN be packaged to obtain continuous data. The method comprises the steps that a dividing mode that a target controller divides continuous data into a plurality of CAN request messages and a sending mode for sending the plurality of CAN request messages CAN be determined; and then, based on the dividing mode and the sending mode, the plurality of CAN messages are packaged.
The server may then parse the continuous data according to the SOA protocol based on CAN, and determine the object requested to be controlled by the control request, the function requested to be controlled for the object, and the manner of control for the function. The object requested to be controlled by the control request may include various objects, such as a window, a door, a seat, a throttle, a brake, and the like, which is not limited in this embodiment of the present invention. The function of the control requested for the object may include various kinds, for example, when the object is a seat, the function of the control requested for the seat may include a back-and-forth movement function, an up-and-down movement function, a backrest angle adjustment function, and the like; when the object is a window, the function requested to be controlled for the window may include an opening and closing function; and so on. And the control manner for the function may include various manners, for example, when the function is a forward and backward movement function for the seat, the corresponding control manner may include: forward movement and sequential movement; when the function is an opening and closing function for a window, the corresponding control manner may include: opening and closing the vehicle window; and so on.
Then, according to the object requested to be controlled by the control request and the function requested to be controlled by the object, an actuator corresponding to the function requested to be controlled and identification information corresponding to the actuator are determined. Generating a control signal for indicating the actuator to execute corresponding operation according to the identification information and the control mode according to the SOA protocol based on the CAN; and generates a first control response message based on the control signal. Wherein the first control response information is also continuous data; the server CAN divide the first control response information to obtain a plurality of corresponding first CAN response messages; and sending a first CAN response message corresponding to the first control response message to the target controller.
And after the server returns the first control response message, the vehicle communication module of the vehicle CAN receive the first control response message and then send the first control response message to the target controller through the CAN. The first control response message received by the target controller may include a plurality of first CAN response messages; then the target controller sends the control signal corresponding to the first control response message to the corresponding actuator through the CAN; reference may be made to steps 310 to 314:
and 310, packaging the plurality of first CAN response messages to obtain continuous second data to be processed.
Step 312, extracting a control signal from the second data to be processed.
And step 314, sending the control signal to an actuator corresponding to the identification information, and executing an operation corresponding to the control signal by the actuator.
In the embodiment of the invention, the target controller CAN acquire a dividing mode that the server divides continuous data into a plurality of first CAN response messages and a sending mode for sending the plurality of first CAN response messages; and then, based on the dividing mode and the sending mode, packaging the plurality of first CAN response messages to obtain corresponding continuous data (subsequently called as second data to be processed). The second data to be processed comprises a control signal for instructing an actuator to execute operation; the control signal can thus be extracted from said second data to be processed. Then the control signal is sent to an actuator corresponding to the identification information; after the actuator receives the control signal, the actuator can execute the operation corresponding to the control information to realize the control of the vehicle function; if the left window actuator receives the window opening signal, the left window can be opened; when the air conditioner actuator receives the closing signal, the air conditioner can be closed; and so on.
The CAN-based SOA protocol in the above example may include: on the basis of multiple logical layers, namely, the adaptation layer, the transport layer, the abstraction layer, and the driver layer, the physical hardware corresponding to the driver layer driver may receive the first control response message sent by the server (i.e., step 308 is executed); and then the abstraction layer acquires a first control response message sent by the server and received by the physical hardware through the CAN interface, and sends the first control response message to the transmission layer. The transmission layer may perform the above steps 310 to 314, and implement sending the control signal to the corresponding actuator.
In this embodiment of the present invention, after the actuator executes the operation corresponding to the control signal, the execution result may be returned to the target controller, and the target controller returns the second control response message to the local application program in the vehicle based on the execution result, referring to steps 316 to 318:
and step 316, generating continuous third data to be processed by adopting the execution result of the actuator.
Step 318, analyzing the third data to be processed to obtain a second control response message and returning the second control response message to the local application program.
In the embodiment of the present invention, according to a data format of an SOA protocol based on a CAN, continuous data (which may be referred to as third data to be processed subsequently) may be generated by using second data to be processed corresponding to a first control response message returned by a server and an execution result of an actuator. The local application program is communicated by adopting an SOA protocol based on the Ethernet, so that the third data to be processed can be analyzed according to the SOA protocol based on the Ethernet to obtain a second control response message; the second control response message is then sent to the vehicle's local application.
The steps 316 to 318 may be implemented by an adaptation layer in a SOA protocol based on CAN.
In summary, in the embodiment of the present invention, in the process of sending the control request, the control request may be encapsulated into a CAN request message based on a CAN communication protocol; and then the CAN request message is sent to a vehicle communication module through the CAN, and the vehicle communication module sends the CAN request message to a server, so that the server CAN quickly send a control request.
Secondly, in the embodiment of the present invention, after receiving a first control response message returned by a server, a plurality of first CAN response messages in the first control response message may be packaged to obtain continuous second data to be processed; then extracting a control signal from the second data to be processed, sending the control signal to an actuator corresponding to the identification information, and executing an operation corresponding to the control signal by the actuator; and then the extracted signal in the first response message is directly sent to the corresponding actuator through the CAN without signal conversion, thereby improving the efficiency of controlling the vehicle function.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
The embodiment of the invention also provides a communication device, which is applied to a vehicle and comprises the following modules:
referring to fig. 5, a block diagram of a communication device according to an embodiment of the present invention is shown, which may specifically include the following modules:
a request obtaining module 502, configured to obtain a control request generated by a local application in the vehicle, where the local application is a local application based on service-oriented architecture SOA protocol communication;
and the request sending module 504 is configured to send the control request to a server by using an SOA protocol on the basis of a controller area network CAN in the vehicle.
Referring to fig. 6, a block diagram of an alternative embodiment of a communication device of the present invention is shown, which may specifically include the following modules:
in an optional embodiment of the present invention, the request sending module 504 may include:
a request encapsulation submodule 5042, configured to encapsulate the control request into a CAN request message based on a CAN communication protocol;
and the message sending submodule 5044 is used for sending the request CAN message to a vehicle communication module through a CAN, and sending the request CAN message to a server through the vehicle communication module.
In an optional embodiment of the present invention, the request encapsulating sub-module 5042 is configured to encapsulate the control request into continuous first to-be-processed data based on a CAN communication protocol; and performing packet processing on the first to-be-processed data to obtain a plurality of CAN request messages.
In an optional embodiment of the present invention, the message sending sub-module 5044 is configured to call a CAN interface to send the CAN request message to a vehicle communication module in the vehicle, so that the vehicle communication module sends the CAN request message to a server.
In summary, in the embodiment of the present invention, a control request generated by a local application in a vehicle may be obtained, where the local application is a local application based on service-oriented architecture SOA protocol communication; then, on the basis of a controller area network CAN in the vehicle, an SOA protocol is adopted to send a control request to a server; after subsequently receiving a control response message returned by the server through the CAN, directly sending a control signal to a corresponding actuator through the CAN, so that the control of the vehicle function CAN be realized; therefore, when the vehicle function needs to be expanded, only the parameters related to the function to be expanded in the local application program need to be changed, and the expandability of the vehicle function is enhanced.
Referring to fig. 7, a block diagram of another embodiment of the communication device of the present invention is shown, which may specifically include the following modules:
a message receiving module 702, configured to obtain, through a controller area network CAN in the vehicle, a first control response message received by a vehicle communication module; the first control response message is generated by the server based on a control request generated by a local application program in the vehicle and returned to the vehicle communication module, and the local application program is a local application program based on service-oriented architecture SOA protocol communication;
a message sending module 704, configured to send a control signal corresponding to the first control response message to a corresponding actuator through the CAN; and returning a second control response message to the local application program based on the execution result of the actuator.
Referring to fig. 8, a block diagram of an alternative embodiment of a communication device according to the present invention is shown, which may specifically include the following modules:
in an optional embodiment of the present invention, the first control response message includes a plurality of first CAN response messages, and the message sending module 704 may include:
the data packet packaging sub-module 7042 is configured to package the plurality of first CAN response packets to obtain continuous second data to be processed;
a signal extraction submodule 7044, configured to extract a control signal from the second data to be processed;
and the signal sending submodule 7046 is configured to send the control signal to an actuator corresponding to the identification information, and the actuator executes an operation corresponding to the control signal.
In an optional embodiment of the present invention, the message sending module 704 may include:
the data generating submodule 7048 is configured to generate continuous third data to be processed by using the execution result of the actuator;
and the message returning submodule 70410 is configured to parse the third to-be-processed data to obtain a second control response message, and return the second control response message to the local application program.
In summary, in the embodiment of the present invention, after the server receives the control request of the local application in the vehicle, a first control response message may be generated for the control request and returned to the vehicle communication module; further, a first control response message received by a vehicle communication module CAN be acquired through a Controller Area Network (CAN) in the vehicle, and then a control signal corresponding to the first control response message is sent to a corresponding actuator; then the control signal is directly sent to the corresponding actuator through the CAN, and the control on the vehicle function CAN be realized; therefore, when the vehicle function needs to be expanded, only the parameters related to the function to be expanded in the local application program need to be changed, and the expandability of the vehicle function is enhanced. Then, a second control response message can be returned to the local application program in the vehicle based on the execution result of the actuator, so that the control result of the vehicle function can be fed back to the user through the local application program, and the user experience is improved. For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
Embodiments of the present invention also provide a vehicle, including a memory, and one or more programs, where the one or more programs are stored in the memory, and configured to be executed by the one or more processors includes a processor configured to perform any of the communication methods according to the embodiments of the present invention.
Embodiments of the present invention further provide a readable storage medium, wherein when the instructions in the storage medium are executed by a processor of a vehicle, the vehicle is enabled to execute the communication method according to any one of the embodiments of the present invention.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The communication method, the communication device and the vehicle provided by the invention are described in detail, and the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (11)

1. A communication method, applied to a vehicle, comprising:
acquiring a control request generated by a local application program in the vehicle, wherein the local application program is a local application program based on service-oriented architecture SOA protocol communication;
and on the basis of a controller area network CAN in the vehicle, an SOA protocol is adopted to send the control request to a server.
2. The method of claim 1, wherein sending the control request to a server using a SOA protocol based on a controller area network, CAN, in the vehicle comprises:
based on a CAN communication protocol, packaging the control request into a CAN request message;
and sending the CAN request message to a vehicle communication module through a CAN, and sending the CAN request message to a server through the vehicle communication module.
3. The method of claim 2, wherein encapsulating the control request into a CAN request message based on a CAN communication protocol comprises:
based on a CAN communication protocol, packaging the control request into continuous first data to be processed;
and performing packet processing on the first to-be-processed data to obtain a plurality of CAN request messages.
4. The method of claim 2, wherein sending the CAN request message to a vehicle communication module via a CAN, the vehicle communication module sending the CAN request message to a server, comprises:
and calling a CAN interface to send the CAN request message to a vehicle communication module in the vehicle, so that the vehicle communication module sends the CAN request message to a server.
5. A communication method, applied to a vehicle, comprising:
acquiring a first control response message received by a vehicle communication module through a Controller Area Network (CAN) in the vehicle; the first control response message is generated by the server based on a control request generated by a local application program in the vehicle and returned to the vehicle communication module, and the local application program is a local application program based on service-oriented architecture SOA protocol communication;
sending a control signal corresponding to the first control response message to a corresponding actuator through the CAN; and returning a second control response message to the local application program based on the execution result of the actuator.
6. The method of claim 5, wherein the first control response message comprises a plurality of first CAN response messages, and the sending the control signal corresponding to the first control response message to the corresponding actuator comprises:
packaging the plurality of first CAN response messages to obtain continuous second data to be processed;
extracting a control signal from the second data to be processed;
and sending the control signal to an actuator corresponding to the identification information, and executing the operation corresponding to the control signal by the actuator.
7. The method of claim 5, wherein returning a second control response message to the native application based on the execution result of the actuator comprises:
generating continuous third data to be processed by adopting the execution result of the actuator;
and analyzing the third data to be processed to obtain a second control response message and returning the second control response message to the local application program.
8. A communication device, for use in a vehicle, comprising:
the request acquisition module is used for acquiring a control request generated by a local application program in the vehicle, wherein the local application program is a local application program based on service-oriented architecture SOA protocol communication;
and the request sending module is used for sending the control request to a server by adopting an SOA (service oriented architecture) protocol on the basis of a Controller Area Network (CAN) in the vehicle.
9. A communication device, for use in a vehicle, comprising:
the message receiving module is used for acquiring a first control response message received by the vehicle communication module through a Controller Area Network (CAN) in the vehicle; the first control response message is generated by the server based on a control request generated by a local application program in the vehicle and returned to the vehicle communication module, and the local application program is a local application program based on service-oriented architecture SOA protocol communication;
the message sending module is used for sending the control signal corresponding to the first control response message to the corresponding actuator through the CAN; and returning a second control response message to the local application program based on the execution result of the actuator.
10. A vehicle comprising a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors comprises instructions for performing the communication method of any of method claims 1-4 and/or 5-7.
11. A readable storage medium, characterized in that the instructions in the storage medium, when executed by a processor of a vehicle, enable the vehicle to perform the communication method according to any of the method claims 1-4 and/or 5-7.
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