CN115150431A - Finished vehicle MCU remote debugging system, method and storage medium - Google Patents
Finished vehicle MCU remote debugging system, method and storage medium Download PDFInfo
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- CN115150431A CN115150431A CN202210711058.1A CN202210711058A CN115150431A CN 115150431 A CN115150431 A CN 115150431A CN 202210711058 A CN202210711058 A CN 202210711058A CN 115150431 A CN115150431 A CN 115150431A
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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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/70—Software maintenance or management
- G06F8/71—Version control; Configuration management
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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
- H04L69/08—Protocols for interworking; Protocol conversion
Abstract
The invention discloses a system, a method and a storage medium for remote debugging of a whole vehicle MCU (microprogrammed control Unit), which comprise a cloud interface module: the method comprises the steps of analyzing a variable instruction, acquiring variable data, issuing and deploying on a PC server. A service conversion module: through the module, an Mqtt data packet sent by the cloud is received, converted into a locally recognizable Dds protocol packet, and deployed in a Tbox hardware environment. A variable acquisition module: and analyzing and judging the Dds data packet received by the local MCU, and replying the value of the corresponding variable. According to the method, the variables in the local MCU are acquired, developers do not need to detach the controller cover on the real vehicle, connect the debugger and then acquire the internal variables in the current state, so that a large amount of manpower, material resources and time cost are saved, the problem can be quickly positioned, and the problem solving efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of MCU debugging, and particularly relates to a system and a method for remotely debugging a whole vehicle MCU and a storage medium.
Background
With the high-speed development of the intellectualization of the automobile industry, the automobile software is more and more complex and inevitable, the problem of the vehicle after leaving a factory road test can be solved quickly, the vehicle is often far away from a developer, the problem is solved, the long-distance travel and field positioning can not be avoided, a large amount of manpower and financial resources are not needed, and the problem can not be solved due to the fact that the fault field is missed for too long time.
Chinese patent CN201910436247.0 discloses a board-level debugging method without JTAG intervention, which comprises the following steps of 1) binding and downloading debugging software and target software or respectively downloading and realizing the operation of the debugging software and the target software; 2) The processor peripheral interrupt or the external board level interrupt realizes the interrupt execution and control of the debugged software by the debugging software. The invention simulates the traditional JTAG function by using independent debugging software bound with target software and utilizing peripheral equipment and external interrupt intervention, and realizes a board-level debugging method which does not limit a processor platform, supports a bare computer environment without an operating system and does not need JTAG intervention. In addition, the national patent CN201811368120.1 discloses an online debugging method, an online debugging device, a debugging slave, a debugging host and an online debugging system, which are applied to the field of simulation debugging. In the embodiment of the application, output signals of two output ports of a debugging host (debugged MCU) are similar to IIC communication, the debugging slave acquires clock signals and real-time data sent from the debugging host, and sends the debugging data to a display after the clock signals and the real-time data are simply processed, so that very visual debugging data can be obtained and the debugging data are real-time data. Both the two prior art schemes are schemes for realizing online debugging, but the pain point of separation of people and equipment is not solved, and the online debugging can be realized only by an engineer and the equipment in a close distance.
Disclosure of Invention
In order to solve the problems, the invention provides a system, a method and a storage medium for remotely debugging an MCU (microprogrammed control unit) of a whole vehicle, which are used for remotely reading internal variables of a program so as to solve the problems of manpower and material resource obstacles generated when a human-vehicle acquires the internal state environment of the current software at intervals after vehicle faults occur.
In order to solve the technical problem, the technical scheme adopted by the invention is as follows: a whole vehicle MCU remote debugging system comprises,
the cloud interface unit is deployed on the PC server and used for acquiring, analyzing and issuing a variable reading instruction;
the service conversion unit is deployed in a TBOX (tunnel boring machine) at the vehicle end and is used for receiving the variable reading instruction sent by the cloud interface unit and converting the variable reading instruction into a locally recognizable variable reading instruction;
and the variable acquisition unit is deployed in the MCU of the vehicle end, receives the locally identifiable variable reading instruction sent by the service conversion unit, analyzes and judges the variable reading instruction, and replies a value of the corresponding variable.
As an optimization, the cloud interface unit includes,
the data issuing module is used for analyzing a variable reading instruction input by a user, acquiring the address and the transmission period of a corresponding variable and packaging the variable into an Mqtt data packet;
and the first Mqtt module is used for communicating with the data conversion unit and sending the Mqtt data packet to the service conversion unit.
As optimization, the cloud interface unit further comprises a variable display module for displaying the value of the corresponding variable replied by the variable acquisition module.
As an optimization, the service conversion unit includes,
the second Mqtt module is used for communicating with the cloud interface module and receiving the Mqtt data packet;
the service conversion module is used for converting the Mqtt data packet into a locally recognizable Dds protocol packet;
the first Dds subscription module is used for acquiring the Dds protocol packet;
and the first Dds issuing module is used for sending the Dds protocol packet to a variable acquisition unit.
As an optimization, the variable acquisition unit comprises,
the second Dds subscription module is used for acquiring the Dds protocol packet sent by the service conversion unit;
the Dds analysis module is used for analyzing the Dds protocol packet and acquiring the address and the transmission period of a corresponding variable in a protocol layer;
the variable acquisition module is used for packing the values of the corresponding variables according to the transmission period after judging the effective addresses;
and the second Dds issuing module is used for uploading the values of the corresponding variables packaged by the variable acquisition module.
Based on the system, the invention also provides a finished automobile MCU remote debugging method, which comprises the following steps,
s1, acquiring a variable reading instruction through a cloud interface unit, analyzing the variable reading instruction, acquiring an address and a transmission period of a corresponding variable, and issuing the variable reading instruction to a service conversion unit in an Mqtt data packet mode;
s2, the service conversion unit converts the received Mqtt data packet into a locally recognizable Dds protocol packet and transmits the locally recognizable Dds protocol packet to the variable acquisition unit;
s3, analyzing the Dds protocol packet by a variable acquisition unit, and acquiring and replying a value of a corresponding variable;
and S4, the remote interface unit displays the replied values of the corresponding variables to the user.
As an optimization, step S1 comprises the following steps,
s101, loading an Elf file;
s102, judging whether the software version number in the Elf file is consistent with the software version uploaded by the vehicle end, if so, executing the next step, otherwise, terminating the execution;
s103, inputting a variable name to be read by a user, and setting a transmission period;
s104, automatically matching a variable address in the Elf file according to the input variable name;
and S105, sequentially issuing the address and the transmission cycle of the variable in the form of Mqtt data packets.
As an optimization, step S2 comprises the following steps,
s201, judging whether an Mqtt data packet from a cloud interface unit is received;
s202, converting the Mqtt data packet into a Dds protocol packet;
and S203, issuing the Dds protocol packet to a variable acquisition unit.
As an optimization, step S3 comprises the following steps,
s301, judging whether a Dds protocol packet sent by a service conversion unit is received;
s302, after the Dds protocol packet is analyzed, whether the obtained variable address is effective is judged;
s303, obtaining the value of the corresponding variable through the variable address;
s304, values of the corresponding variables are packaged and issued through the Dds.
A storage medium storing one or more programs which, when executed by a processor, perform the steps of the entire vehicle MCU remote debugging method of any one of claims 6-9.
Compared with the prior art, the invention has the following advantages:
the cloud interface module of the invention: the method comprises the steps of analyzing a variable instruction, acquiring variable data, issuing and deploying on a PC server. A service conversion module: through the module, the Mqtt data packet sent by the cloud is received, converted into a locally recognizable Dds protocol packet, and deployed in a Tbox hardware environment. A variable acquisition module: and analyzing and judging the Dds data packet received by the local MCU, and replying the value of the corresponding variable. According to the method, the variable in the local MCU is acquired, a developer does not need to detach the controller cover on a real vehicle, connect the debugger and then acquire the internal variable in the current state, so that a large amount of manpower, material resources and time cost are saved, the problem can be quickly positioned, and the problem solving efficiency is improved.
Drawings
FIG. 1 is an architectural diagram of an overall system of the present invention;
FIG. 2 is a flow chart of a cloud interface unit of the present invention;
FIG. 3 is a flow chart of the service transformation unit of the present invention;
fig. 4 is a flow chart of the local acquisition unit of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings and the embodiments.
The embodiment is as follows: with reference to figures 1-4 of the drawings,
a whole vehicle MCU remote debugging system comprises,
the cloud interface unit is deployed on the PC server and used for acquiring, analyzing and issuing a variable reading instruction; the cloud interface unit comprises a plurality of cloud interface units,
the data issuing module is used for analyzing a variable reading instruction input by a user, acquiring the address and the transmission period of a corresponding variable and packaging the variable into an Mqtt data packet;
and the first Mqtt module is used for communicating with the data conversion unit and sending the Mqtt data packet to the service conversion unit.
The cloud interface unit further comprises a variable display module for displaying the value of the corresponding variable replied by the variable acquisition module.
The service conversion unit is deployed in a TBOX (tunnel boring machine) at the vehicle end and is used for receiving the variable reading instruction sent by the cloud interface unit and converting the variable reading instruction into a locally recognizable variable reading instruction; the service conversion unit includes a service conversion unit including,
the second Mqtt module is used for communicating with the cloud interface module and receiving the Mqtt data packet;
the service conversion module is used for converting the Mqtt data packet into a locally identifiable Dds protocol packet;
the first Dds subscription module is used for acquiring the Dds protocol packet;
the first Dds issuing module is configured to send the Dds protocol packet to a variable acquisition unit.
And the variable acquisition unit is deployed in the MCU of the vehicle end, receives the locally identifiable variable reading instruction sent by the service conversion unit, analyzes and judges the variable reading instruction, and replies a value of the corresponding variable. Specifically, for a variable instruction reading, whether the variable instruction is legal or not is judged according to the address in the obtained instruction, the value of the corresponding address is obtained according to a rule, and the value is replied through a protocol packet, so that the internal logic can be conveniently and remotely consulted. And for writing variable addresses, judging whether the addresses are legal or not according to the addresses in the obtained instructions, and modifying the values of the corresponding addresses according to a rule to simulate various logic and reproduce problem environments.
The variable acquisition unit comprises a variable acquisition unit,
the second Dds subscription module is used for acquiring the Dds protocol packet sent by the service conversion unit;
the Dds analysis module is used for analyzing the Dds protocol packet and acquiring the address and the transmission period of a corresponding variable in a protocol layer;
the variable acquisition module is used for packing the values of the corresponding variables according to the transmission period after judging the effective addresses;
and the second Dds issuing module is used for uploading the values of the corresponding variables packaged by the variable acquisition module.
Specifically, as shown in fig. 1, in the MCU of the present invention, a second Dds subscription module is deployed to obtain whether there is a service for reading a variable; an analysis module is deployed and used for acquiring the address and the transmission period of the variable in the protocol layer; a variable acquisition module is deployed and used for uploading values of corresponding variables according to the required transmission period after the effective address is judged; a second Dds publishing module is deployed for uploading service packages of variable values to send.
In the Tbox, an Mqtt module is deployed for communicating with the cloud; a service conversion module is deployed and used for converting the Mqtt data packet into a Dds protocol packet; a first Dds subscription module is deployed for acquiring whether a service for reading a variable occurs; a first Dds issuing module is deployed for obtaining service package sending of variables.
At the cloud end, a data issuing module is deployed and used for matching variables input by a user with Elf files of a server end and packaging correct addresses and required periods of the variables for preparation; an Mqtt module is deployed and used for issuing the prepared data packet; a data display module is deployed and used for displaying the variable value returned by the vehicle end.
Based on the system, the invention also provides a finished automobile MCU remote debugging method, which comprises the following steps,
s1, acquiring a variable reading instruction through a cloud interface unit, analyzing the variable reading instruction, acquiring an address and a transmission period of a corresponding variable, and issuing the variable reading instruction to a service conversion unit in an Mqtt data packet mode;
specifically, as shown in fig. 2, S101, load an Elf file;
s102, judging whether the software version number in the Elf file is consistent with the software version uploaded by the vehicle end, if so, executing the next step, otherwise, terminating the execution;
s103, inputting a variable name to be read by a user, and setting a transmission period, such as event uploading and 10ms uploading;
s104, automatically matching a variable address in the Elf file according to the input variable name;
and S105, sequentially issuing the address and the transmission cycle of the variable in the form of Mqtt data packets.
S2, the service conversion unit converts the received Mqtt data packet into a locally recognizable Dds protocol packet and transmits the locally recognizable Dds protocol packet to the variable acquisition unit;
specifically, as shown in fig. 3, S201 determines whether an Mqtt data packet from the cloud interface unit is received;
s202, converting the Mqtt data packet into a Dds protocol packet;
and S203, issuing the Dds protocol packet to a variable acquisition unit.
S3, analyzing the Dds protocol packet by a variable acquisition unit, and acquiring and replying a value of a corresponding variable;
specifically, as shown in fig. 4, S301 determines whether a Dds protocol packet sent by the service conversion unit is received;
s302, after the Dds protocol packet is analyzed, whether the obtained variable address is effective is judged;
s303, obtaining the value of the corresponding variable through the variable address;
s304, values of the corresponding variables are packaged and issued through the Dds.
And S4, the remote interface unit displays the replied values of the corresponding variables to the user.
A storage medium storing one or more programs which, when executed by a processor, perform the steps of the entire vehicle MCU remote debugging method of any one of claims 6-9.
The cloud interface module of the invention: the method comprises the steps of analyzing a variable instruction, acquiring variable data, issuing and deploying on a PC server. A service conversion module: through the module, an Mqtt data packet sent by the cloud is received, converted into a locally recognizable Dds protocol packet, and deployed in a Tbox hardware environment. A variable acquisition module: and analyzing and judging the Dds data packet received by the local MCU, and replying the value of the corresponding variable. According to the method, the variable in the local MCU is acquired, a developer does not need to detach the controller cover on a real vehicle, connect the debugger and then acquire the internal variable in the current state, so that a large amount of manpower, material resources and time cost are saved, the problem can be quickly positioned, and the problem solving efficiency is improved.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that the technical solutions of the present invention can be modified or substituted with equivalent solutions without departing from the spirit and scope of the technical solutions, and all should be covered in the claims of the present invention.
Claims (10)
1. A whole vehicle MCU remote debugging system is characterized by comprising,
the cloud interface unit is deployed on the PC server and used for acquiring, analyzing and issuing a variable reading instruction;
the service conversion unit is deployed in a TBOX (tunnel boring machine) at the vehicle end and is used for receiving the variable reading instruction sent by the cloud interface unit and converting the variable reading instruction into a locally recognizable variable reading instruction;
and the variable acquisition unit is deployed in the MCU of the vehicle end, receives the locally identifiable variable reading instruction sent by the service conversion unit, analyzes and judges the variable reading instruction, and replies a value of the corresponding variable.
2. The vehicle MCU remote debugging system of claim 1, wherein the cloud interface unit comprises,
the data issuing module is used for analyzing a variable reading instruction input by a user, acquiring the address and the transmission period of a corresponding variable and packaging the variable into an Mqtt data packet;
and the first Mqtt module is used for communicating with the data conversion unit and sending the Mqtt data packet to the service conversion unit.
3. The vehicle MCU remote debugging system of claim 2, wherein the cloud interface unit further comprises a variable display module for displaying the values of the corresponding variables replied by the variable acquisition module.
4. The MCU remote debugging system of claim 2, wherein the service switching unit comprises,
the second Mqtt module is used for communicating with the cloud interface module and receiving the Mqtt data packet;
the service conversion module is used for converting the Mqtt data packet into a locally identifiable Dds protocol packet;
the first Dds subscription module is used for acquiring the Dds protocol packet;
and the first Dds issuing module is used for sending the Dds protocol packet to a variable acquisition unit.
5. The MCU remote debugging system of the whole vehicle according to claim 4, wherein the variable collecting unit comprises,
the second Dds subscription module is configured to obtain the Dds protocol packet sent by the service conversion unit;
the Dds analysis module is used for analyzing the Dds protocol packet and acquiring the address and the transmission period of a corresponding variable in a protocol layer;
the variable acquisition module is used for packing the values of the corresponding variables according to the transmission period after judging the effective addresses;
and the second Dds issuing module is used for uploading the values of the corresponding variables packaged by the variable acquisition module.
6. A vehicle MCU remote debugging method is characterized by comprising the following steps,
s1, acquiring a variable reading instruction through a cloud interface unit, analyzing the variable reading instruction, acquiring an address and a transmission period of a corresponding variable, and issuing the variable reading instruction to a service conversion unit in an Mqtt data packet mode;
s2, the service conversion unit converts the received Mqtt data packet into a locally recognizable Dds protocol packet and transmits the locally recognizable Dds protocol packet to the variable acquisition unit;
s3, analyzing the Dds protocol packet by a variable acquisition unit, and acquiring and replying a value of a corresponding variable;
and S4, the remote interface unit displays the replied values of the corresponding variables to the user.
7. The vehicle MCU remote debugging method of claim 6, wherein the step S1 comprises the steps of,
s101, loading an Elf file;
s102, judging whether the software version number in the Elf file is consistent with the software version uploaded by the vehicle end, if so, executing the next step, otherwise, terminating the execution;
s103, inputting a variable name to be read by a user, and setting a transmission period;
s104, automatically matching a variable address in the Elf file according to the input variable name;
and S105, sequentially issuing the address and the transmission cycle of the variable in the form of Mqtt data packets.
8. The vehicle MCU remote debugging method of claim 6, wherein step S2 comprises the steps of,
s201, judging whether an Mqtt data packet from a cloud interface unit is received;
s202, converting the Mqtt data packet into a Dds protocol packet;
and S203, issuing the Dds protocol packet to a variable acquisition unit.
9. The vehicle MCU remote debugging method of claim 6, wherein step S3 comprises the steps of,
s301, judging whether a Dds protocol packet sent by a service conversion unit is received;
s302, after the Dds protocol packet is analyzed, whether the obtained variable address is effective is judged;
s303, obtaining a value of a corresponding variable through a variable address;
s304, values of the corresponding variables are packaged and issued through the Dds.
10. A storage medium, characterized in that the storage medium stores one or more programs, and when the one or more programs are executed by a processor, the steps of the whole vehicle MCU remote debugging method according to any one of claims 6 to 9 are executed.
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| CN105760289A (en) * | 2014-12-17 | 2016-07-13 | 中兴通讯股份有限公司 | Debugging method and device of embedded system |
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Application publication date: 20221004 |