CN113347272B - Message processing method, device, storage medium and equipment - Google Patents

Message processing method, device, storage medium and equipment Download PDF

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Publication number
CN113347272B
CN113347272B CN202110729867.0A CN202110729867A CN113347272B CN 113347272 B CN113347272 B CN 113347272B CN 202110729867 A CN202110729867 A CN 202110729867A CN 113347272 B CN113347272 B CN 113347272B
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China
Prior art keywords
message
external tool
condition
information processor
remote information
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CN202110729867.0A
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Chinese (zh)
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CN113347272A (en
Inventor
张海瑞
张延良
张振京
宋业栋
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Weichai Power Co Ltd
Weifang Weichai Power Technology Co Ltd
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Weichai Power Co Ltd
Weifang Weichai Power Technology Co Ltd
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Priority to CN202110729867.0A priority Critical patent/CN113347272B/en
Publication of CN113347272A publication Critical patent/CN113347272A/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
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
    • 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
    • H04L67/01—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
    • H04L2012/40208—Bus networks characterized by the use of a particular bus standard
    • H04L2012/40215—Controller Area Network CAN
    • 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
    • H04L2012/40267—Bus for use in transportation systems
    • H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle

Abstract

The application discloses a message processing method, a message processing device, a storage medium and equipment, which control a remote information processor to stop data acquisition under the condition that the remote information processor is detected to execute a message forwarding process. And timing the duration of the message forwarding process not executed by the remote information processor to obtain the target duration. And restarting the remote information processor to carry out data acquisition work under the condition that the target duration is greater than the preset threshold value. The message sent by the external tool and the response message sent by the electronic control unit are forwarded by the remote information processor, so that the message interference between the remote information processor and the external tool is eliminated. Under the condition that the target duration is greater than the preset threshold, the remote information processor is restarted in time to carry out data acquisition, so that loss of a large amount of data can be avoided, and the integrity of the data acquisition is effectively improved.

Description

Message processing method, device, storage medium and equipment
Technical Field
The present application relates to the field of vehicle-mounted systems, and in particular, to a method, an apparatus, a storage medium, and a device for processing a packet.
Background
The message communication protocols of Electronic Control Units (ECUs) of vehicles are all in a one-to-one manner, and it is not distinguished which upper computer communicates with the ECU, for example, a Telematics BOX (T-BOX) and an external tool (e.g., a diagnostic tool) both use the same message communication protocol and communicate with the ECU on the same bus. Because the T-BOX and the diagnostic tool both adopt the same message communication protocol to carry out communication interaction with the ECU, and the ECU can not distinguish the T-BOX from the diagnostic tool, the T-BOX and the diagnostic tool are easy to generate message interference, so that the functions of the T-BOX and the diagnostic tool are mixed and can not be normally carried out. Therefore, how to eliminate the message interference between the T-BOX and the diagnostic tool becomes a problem which needs to be solved urgently in the field.
At present, the existing message interference cancellation method is as follows: and when the diagnostic protocol message is monitored on the bus, controlling the T-BOX to suspend all work and giving way to the diagnostic tool. However, in a driving cycle (an existing term, namely, a cycle process of powering on and powering off a whole vehicle), the T-BOX is triggered to perform data acquisition, and the existing message interference elimination manner may cause loss of a large amount of data, so that the integrity of the data acquisition is reduced.
Disclosure of Invention
The application provides a message processing method, a message processing device, a storage medium and a message processing device, which are used for improving the integrity of data acquisition work under the condition of eliminating message interference between a remote information processor and an external tool.
In order to achieve the above object, the present application provides the following technical solutions:
a message processing method comprises the following steps:
under the condition that the remote information processor is detected to execute a message forwarding process, controlling the remote information processor to stop data acquisition; the message forwarding process comprises the following steps: forwarding a message sent by an external tool to an electronic control unit, and forwarding a response message fed back by the electronic control unit based on the message to the external tool;
timing the duration time of the message forwarding process which is not executed by the remote information processor to obtain target duration;
and restarting the remote information processor to carry out data acquisition work under the condition that the target duration is greater than a preset threshold value.
Optionally, the forwarding the message sent by the external tool to the electronic control unit includes:
judging whether a first message sent by an external tool is received; the first message is used for reading the software version of the electronic control unit;
under the condition of receiving the first message sent by the external tool, forwarding the first message to the electronic control unit;
and under the condition that the first message sent by the external tool is not received, carrying out data acquisition.
Optionally, after forwarding the first message to the electronic control unit when receiving the first message sent by the external tool, the method further includes:
judging whether a second message sent by the external tool is received or not; the second message is used for reading fault data of the vehicle-mounted system and performing data flashing;
and under the condition of receiving the second message sent by the external tool, forwarding the second message to the electronic control unit.
Optionally, the method further includes:
and stopping data acquisition under the condition that the second message sent by the external tool is not received.
Optionally, the method further includes:
and maintaining the remote information processor to stop data acquisition under the condition that the target duration is not greater than the preset threshold.
A message processing apparatus comprising:
the control module is used for controlling the remote information processor to stop data acquisition under the condition that the remote information processor is detected to execute a message forwarding process; the message forwarding process comprises the following steps: forwarding a message sent by an external tool to an electronic control unit, and forwarding a response message fed back by the electronic control unit based on the message to the external tool;
the timing module is used for timing the duration time of the message forwarding process which is not executed by the remote information processor to obtain the target duration;
and the restarting module is used for restarting the remote information processor to carry out data acquisition work under the condition that the target duration is greater than a preset threshold value.
Optionally, the process of forwarding the message sent by the external tool to the electronic control unit by the telematics processor includes:
judging whether a first message sent by an external tool is received; the first message is used for reading the software version of the electronic control unit; under the condition of receiving the first message sent by the external tool, forwarding the first message to the electronic control unit; and under the condition that the first message sent by the external tool is not received, carrying out data acquisition.
Optionally, the method further includes:
and the maintaining module is used for maintaining the remote information processor to stop data acquisition under the condition that the target duration is not greater than the preset threshold.
A computer-readable storage medium including a stored program, wherein the program executes the message processing method.
A message processing apparatus comprising: a processor, a memory, and a bus; the processor and the memory are connected through the bus;
the memory is used for storing a program, and the processor is used for executing the program, wherein the message processing method is executed when the program runs.
According to the technical scheme, under the condition that the remote information processor is detected to execute the message forwarding process, the remote information processor is controlled to stop data acquisition. And timing the duration of the message forwarding process not executed by the remote information processor to obtain the target duration. And restarting the remote information processor to carry out data acquisition work under the condition that the target duration is greater than the preset threshold value. The message sent by the external tool and the response message sent by the electronic control unit are forwarded by the remote information processor, so that the message interference between the remote information processor and the external tool is eliminated. Under the condition that the target duration is greater than the preset threshold, the remote information processor is restarted in time to carry out data acquisition, so that loss of a large amount of data can be avoided, and the integrity of the data acquisition is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1a is a schematic diagram of a message processing method according to an embodiment of the present application;
fig. 1b is a schematic diagram of a communication connection according to an embodiment of the present application;
fig. 2 is a schematic diagram of another message processing method according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a message processing apparatus according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1a, a schematic diagram of a message processing method provided in an embodiment of the present application includes the following steps:
s101: and judging whether the T-BOX receives a first message sent by a diagnostic tool.
And if the T-BOX receives the first message sent by the diagnostic tool, executing S102, otherwise executing S112.
The first message is used for reading the software version of the ECU. Each time the diagnostic tool communicates with the ECU, the diagnostic tool needs to read the software version of the ECU, so that it can be determined whether the diagnostic tool communicates with the ECU by monitoring the first message.
It should be noted that, the T-BOX harness and the two connection ports (i.e., the OBD1 and the OBD2 in fig. 1 b), the diagnostic tool and the Controller Area Network (CAN) bus of the On Board Diagnostics (OBD) are connected in a communication manner as shown in fig. 1 b.
Compared with the prior art, the OBD1 and the OBD2 shown in FIG. 1b do not have communication connection with each other, so that messages sent by the diagnostic tool and messages fed back by the ECU based on the messages can only be forwarded through the message transceiver of the T-BOX, the working state of the diagnostic tool is determined in real time through the T-BOX, the diagnostic tool is enabled to be in a controllable state, the condition that the diagnostic tool sends the messages can be mastered at any time, and message interference between the T-BOX and the diagnostic tool is eliminated.
S102: and controlling the T-BOX to forward the first message to the ECU.
S103: and controlling the T-BOX to forward the first response message to the diagnostic tool under the condition that the T-BOX receives the first response message sent by the ECU based on the first message.
Because the first message and the first response message are forwarded by the T-BOX, direct communication interaction does not exist between the diagnostic tool and the ECU, and message interference between the T-BOX and the diagnostic tool can be eliminated.
S104: and judging whether the T-BOX receives a second message sent by the diagnostic tool.
And executing S104 if the T-BOX receives a second message sent by the diagnostic tool, otherwise executing S111.
And the second message is used for reading fault data of the vehicle-mounted system and performing data flashing.
S105: and controlling the T-BOX to forward the second message to the ECU.
S106: and controlling the T-BOX to forward the second response message to the diagnostic tool under the condition that the T-BOX receives the second response message sent by the ECU based on the second message.
Because the second message and the second response message are both forwarded by the T-BOX, direct communication interaction does not exist between the diagnostic tool and the ECU, and thus the message interference between the T-BOX and the diagnostic tool can be eliminated.
S107: and controlling the T-BOX to stop data acquisition under the condition of detecting that the T-BOX executes a message forwarding process.
The message forwarding process is the flow shown in S101-S106.
It should be noted that, in each driving cycle, the T-BOX performs data acquisition, and since it is detected that the diagnostic tool performs communication interaction with the ECU, the T-BOX is controlled to stop performing data acquisition, so as to eliminate message interference between the T-BOX and the diagnostic tool.
S108: and timing the duration of the message forwarding process not executed by the T-BOX to obtain the target duration.
S109: and judging whether the target time length is greater than a preset threshold value.
If the target duration is greater than the preset threshold, executing S110, otherwise executing S111.
S110: and restarting the T-BOX to perform data acquisition.
If the target duration is greater than the preset threshold, the diagnosis tool is in an idle state within the target duration, and no message is sent or received, so that the T-BOX can be restarted in time to perform data acquisition, loss of a large amount of data is avoided, and the integrity of the data acquisition is effectively improved.
S111: and maintaining the T-BOX to stop data acquisition.
S112: and maintaining the T-BOX to perform data acquisition work.
If the T-BOX does not receive the first message sent by the diagnosis tool, the diagnosis tool is in an idle state, or the diagnosis tool is not externally connected to the vehicle-mounted system, namely the T-BOX does not execute the message forwarding process, and at the moment, the T-BOX is supposed to maintain the data acquisition work.
In summary, the message sent by the external tool and the response message sent by the electronic control unit are forwarded by the telematics processor, so as to eliminate the message interference between the telematics processor and the external tool. Under the condition that the target duration is greater than the preset threshold, the remote information processor is restarted in time to carry out data acquisition, so that loss of a large amount of data can be avoided, and the integrity of the data acquisition is effectively improved.
It should be noted that, the S101 mentioned in the foregoing embodiment is an optional implementation manner of the message processing method described in this application. In addition, S112 mentioned in the above embodiment is also an optional implementation manner of the message processing method described in this application. For this reason, the flow mentioned in the above embodiment can be summarized as the method described in fig. 2.
As shown in fig. 2, a schematic diagram of another message processing method provided in the embodiment of the present application includes the following steps:
s201: and controlling the remote information processor to stop data acquisition under the condition of detecting that the remote information processor executes a message forwarding process.
The message forwarding process comprises the following steps: and forwarding the message sent by the external tool to the electronic control unit, and forwarding a response message fed back by the electronic control unit based on the message to the external tool.
S202: and timing the duration of the message forwarding process not executed by the remote information processor to obtain the target duration.
S203: and restarting the remote information processor to carry out data acquisition work under the condition that the target duration is greater than the preset threshold value.
In summary, the message sent by the external tool and the response message sent by the electronic control unit are forwarded by the telematics processor, so as to eliminate the message interference between the telematics processor and the external tool. Under the condition that the target duration is greater than the preset threshold, the remote information processor is restarted in time to carry out data acquisition, so that loss of a large amount of data can be avoided, and the integrity of the data acquisition is effectively improved.
Corresponding to the message processing method provided by the embodiment of the application, the application also provides a message processing device.
As shown in fig. 3, an architecture diagram of a message processing apparatus provided in the embodiment of the present application includes:
the control module 100 is configured to control the telematics unit to stop data acquisition when detecting that the telematics unit executes a packet forwarding process; the message forwarding process comprises the following steps: and forwarding the message sent by the external tool to the electronic control unit, and forwarding a response message fed back by the electronic control unit based on the message to the external tool.
The process that the remote information processor forwards the message sent by the external tool to the electronic control unit comprises the following steps: judging whether a first message sent by an external tool is received; the first message is used for reading the software version of the electronic control unit; under the condition of receiving a first message sent by an external tool, forwarding the first message to an electronic control unit; under the condition that a first message sent by an external tool is not received, data acquisition work is carried out; judging whether a second message sent by the external tool is received; the second message is used for reading fault data of the vehicle-mounted system and performing data flashing; under the condition of receiving a second message sent by the external tool, forwarding the second message to the electronic control unit; and stopping data acquisition under the condition that a second message sent by the external tool is not received.
The timing module 200 is configured to time a duration of a message forwarding process not executed by the telematics processor to obtain a target duration.
And the restarting module 300 is used for restarting the remote information processor to perform data acquisition work under the condition that the target duration is greater than the preset threshold.
And a maintaining module 400, configured to maintain the telematics processor to stop performing data acquisition work when the target duration is not greater than the preset threshold.
In summary, the message sent by the external tool and the response message sent by the electronic control unit are forwarded by the telematics processor, so as to eliminate the message interference between the telematics processor and the external tool. Under the condition that the target duration is greater than the preset threshold, the remote information processor is restarted in time to carry out data acquisition, so that loss of a large amount of data can be avoided, and the integrity of the data acquisition is effectively improved.
The application also provides a computer-readable storage medium, which includes a stored program, wherein the program executes the message processing method provided by the application.
The present application further provides a message processing apparatus, including: a processor, a memory, and a bus. The processor is connected with the memory through a bus, the memory is used for storing programs, and the processor is used for running the programs, wherein when the programs run, the message processing method provided by the application is executed, and the message processing method comprises the following steps:
under the condition that the remote information processor is detected to execute a message forwarding process, controlling the remote information processor to stop data acquisition; the message forwarding process comprises the following steps: forwarding a message sent by an external tool to an electronic control unit, and forwarding a response message fed back by the electronic control unit based on the message to the external tool;
timing the duration time of the message forwarding process which is not executed by the remote information processor to obtain target duration;
and restarting the remote information processor to carry out data acquisition work under the condition that the target duration is greater than a preset threshold value.
Optionally, the forwarding the message sent by the external tool to the electronic control unit includes:
judging whether a first message sent by an external tool is received; the first message is used for reading the software version of the electronic control unit;
under the condition of receiving the first message sent by the external tool, forwarding the first message to the electronic control unit;
and under the condition that the first message sent by the external tool is not received, carrying out data acquisition.
Optionally, after forwarding the first message to the electronic control unit when receiving the first message sent by the external tool, the method further includes:
judging whether a second message sent by the external tool is received or not; the second message is used for reading fault data of the vehicle-mounted system and performing data flashing;
and under the condition of receiving the second message sent by the external tool, forwarding the second message to the electronic control unit.
Optionally, the method further includes:
and stopping data acquisition under the condition that the second message sent by the external tool is not received.
Optionally, the method further includes:
and maintaining the remote information processor to stop data acquisition under the condition that the target duration is not greater than the preset threshold.
The functions described in the method of the embodiment of the present application, if implemented in the form of software functional units and sold or used as independent products, may be stored in a storage medium readable by a computing device. Based on such understanding, a part of the embodiments of the present application or a part of the technical solution may be embodied in the form of a software product, which is stored in a storage medium and includes several messages for enabling a computing device (which may be a personal computer, a server, a mobile computing device, or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A message processing method is characterized by comprising the following steps:
under the condition that the remote information processor is detected to execute a message forwarding process, controlling the remote information processor to stop data acquisition; the message forwarding process comprises the following steps: forwarding a message sent by an external tool to an electronic control unit, and forwarding a response message fed back by the electronic control unit based on the message to the external tool;
timing the duration time of the message forwarding process which is not executed by the remote information processor to obtain target duration;
and restarting the remote information processor to carry out data acquisition work under the condition that the target duration is greater than a preset threshold value.
2. The method according to claim 1, wherein forwarding the message sent by the external tool to the electronic control unit comprises:
judging whether a first message sent by an external tool is received; the first message is used for reading the software version of the electronic control unit;
under the condition of receiving the first message sent by the external tool, forwarding the first message to the electronic control unit;
and under the condition that the first message sent by the external tool is not received, carrying out data acquisition.
3. The method according to claim 2, wherein after forwarding the first message to the electronic control unit in the case of receiving the first message sent by the external tool, the method further comprises:
judging whether a second message sent by the external tool is received or not; the second message is used for reading fault data of the vehicle-mounted system and performing data flashing;
and under the condition of receiving the second message sent by the external tool, forwarding the second message to the electronic control unit.
4. The method of claim 3, further comprising:
and stopping data acquisition under the condition that the second message sent by the external tool is not received.
5. The method of claim 1, further comprising:
and maintaining the remote information processor to stop data acquisition under the condition that the target duration is not greater than the preset threshold.
6. A message processing apparatus, comprising:
the control module is used for controlling the remote information processor to stop data acquisition under the condition that the remote information processor is detected to execute a message forwarding process; the message forwarding process comprises the following steps: forwarding a message sent by an external tool to an electronic control unit, and forwarding a response message fed back by the electronic control unit based on the message to the external tool;
the timing module is used for timing the duration time of the message forwarding process which is not executed by the remote information processor to obtain the target duration;
and the restarting module is used for restarting the remote information processor to carry out data acquisition work under the condition that the target duration is greater than a preset threshold value.
7. The apparatus of claim 6, wherein the process of the telematics processor forwarding the message sent by the external tool to the electronic control unit comprises:
judging whether a first message sent by an external tool is received; the first message is used for reading the software version of the electronic control unit; under the condition of receiving the first message sent by the external tool, forwarding the first message to the electronic control unit; and under the condition that the first message sent by the external tool is not received, carrying out data acquisition.
8. The apparatus of claim 6, further comprising:
and the maintaining module is used for maintaining the remote information processor to stop data acquisition under the condition that the target duration is not greater than the preset threshold.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium includes a stored program, wherein the program executes the message processing method according to any one of claims 1 to 5.
10. A message processing apparatus, comprising: a processor, a memory, and a bus; the processor and the memory are connected through the bus;
the memory is used for storing a program, and the processor is used for executing the program, wherein the program executes the message processing method according to any one of claims 1 to 5 when running.
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