CN113923137A - Whole vehicle bus network abnormity monitoring method and system - Google Patents
Whole vehicle bus network abnormity monitoring method and system Download PDFInfo
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- CN113923137A CN113923137A CN202111287928.9A CN202111287928A CN113923137A CN 113923137 A CN113923137 A CN 113923137A CN 202111287928 A CN202111287928 A CN 202111287928A CN 113923137 A CN113923137 A CN 113923137A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 176
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000005059 dormancy Effects 0.000 claims abstract description 150
- 230000002159 abnormal effect Effects 0.000 claims abstract description 44
- 230000007958 sleep Effects 0.000 claims description 85
- 238000004891 communication Methods 0.000 claims description 22
- 230000005856 abnormality Effects 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 230000006266 hibernation Effects 0.000 claims 3
- 125000004122 cyclic group Chemical group 0.000 claims 2
- 238000012423 maintenance Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 208000019116 sleep disease Diseases 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
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- 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
- H04L12/40006—Architecture of a communication node
- H04L12/40039—Details regarding the setting of the power status of a node according to activity on the bus
Abstract
The invention discloses a method and a system for monitoring vehicle bus network abnormity, belonging to the technical field of vehicle control and comprising the following steps: after the whole vehicle is powered off, the vehicle remote monitoring terminal monitors the bus message state of each network segment in the vehicle bus network so as to identify whether the vehicle cannot enter a dormant state or the abnormal state that the vehicle is frequently awakened; when the vehicle network cannot enter the abnormal state of dormancy or the vehicle is frequently awakened, the abnormal state that the vehicle cannot enter the dormancy or the vehicle is frequently awakened is sent to the vehicle cloud platform by the vehicle remote monitoring terminal, and the vehicle cloud platform reminds a user of the abnormal state that the vehicle cannot enter the dormancy or the vehicle is frequently awakened when the vehicle is in an OFF gear at the moment through the client terminal; when the vehicle network state is normal, the vehicle remote monitoring terminal continues to monitor each network segment in the vehicle bus network. The invention can effectively monitor the abnormal state that the vehicle of the whole bus network can not enter the dormancy state or the vehicle is frequently awakened after the vehicle is powered off.
Description
Technical Field
The invention belongs to the technical field of vehicle control, and particularly relates to a method and a system for monitoring vehicle bus network abnormity.
Background
A plurality of control units working in a cooperative mode exist in an automobile system, and at present, communication modes among the control units mainly include CAN, Flexray, vehicle-mounted Ethernet and the like. The process of the vehicle electronic system performing configuration management and coordination work on all the control units through the vehicle-mounted network is called network management.
And (3) network management, namely, after the vehicle is powered off, all control units on the buses are in a low power consumption state so as to reduce the battery consumption of the vehicle. Network management is typically used in battery-powered control units, such as body controllers, meters, and the like. After power is off, the bus network of the whole vehicle cannot sleep in a specified time or is frequently awakened in a short time, so that power shortage of the whole vehicle can be caused, and the use of a user is influenced.
The network management mechanism only appoints the network management mechanism of the controller, and realizes the transmission of the network management message during the vehicle power-on period and the vehicle negotiation entering the dormancy after the power-off. After the vehicle is powered off, how the whole bus network is processed after the whole bus network cannot be in sleep or is frequently awakened after the whole bus network is in sleep is not specified.
The reference patent application CN106227321A discloses counting the wake-up frequency of the terminal system that is woken up by the application program through a data packet, where the wake-up frequency can be determined by the wake-up duration and the wake-up frequency, and determining whether the wake-up frequency is greater than a preset frequency threshold, and if so, reporting the application program to a background management system.
The reference patent application CN110901702A discloses a train dormancy wakeup control method, which discloses that a central monitoring system ATS supports automatic triggering of dormancy wakeup tasks, and monitors the state of the current target train in real time during the whole dormancy and wakeup processes, and if there is abnormality and dormancy wakeup failure, there is a detailed alarm and prompts dispatching personnel, so as to ensure the safety of the process.
In the prior art, after the vehicle is powered off, the whole vehicle network cannot sleep due to certain component problems, the storage battery is finally powered down, and the use of a user is influenced due to the serious problem that the vehicle cannot be started. How this should be handled after this occurs is not specified in existing network management mechanisms.
Disclosure of Invention
Aiming at the defects or the improvement requirements of the prior art, the invention provides the method and the system for monitoring the abnormality of the whole vehicle bus network, which can effectively monitor the abnormal state of the whole vehicle bus network after the vehicle is powered off and the whole vehicle bus network cannot sleep or is frequently awakened.
In order to achieve the above object, according to an aspect of the present invention, a method for monitoring an abnormality of a bus network of a whole vehicle is provided, including:
after the whole vehicle is powered off, the vehicle remote monitoring terminal monitors the bus message state of each network segment in the vehicle bus network so as to identify whether the vehicle cannot enter a dormant state or whether the vehicle network is frequently awakened after the vehicle is powered off;
when the vehicle cannot enter the abnormal state of dormancy or the vehicle network is frequently awakened, the abnormal state that the vehicle cannot enter the dormancy or the vehicle network is frequently awakened is sent to the vehicle cloud platform by the vehicle remote monitoring terminal, and the vehicle cloud platform reminds a user of the abnormal state that the vehicle cannot enter the dormancy or the vehicle network is frequently awakened at the moment through the client terminal;
when the vehicle network is normal, the vehicle remote monitoring terminal continues to monitor each network segment in the vehicle bus network.
In some optional embodiments, the monitoring of each network segment in the vehicle bus network by the vehicle remote monitoring terminal to identify whether the vehicle cannot enter the sleep state after powering off includes:
setting a network dormancy monitoring timer, wherein the network dormancy monitoring timer is used for recording the time consumed by the whole vehicle network entering a dormant state after power is turned on, and resetting the network dormancy monitoring timer when the network dormancy monitoring timer reaches a preset dormant period; clearing the network dormancy monitoring timer at the moment when the whole vehicle is turned from ON/ACC to OFF;
setting a network dormancy failure control counter, wherein the network dormancy failure counter is used for recording the times of the whole vehicle network trying to enter dormancy but failing to enter dormancy, failing to sleep within a preset dormancy period, and adding 1 to the value of the network dormancy failure counter; clearing the value of the network dormancy failure counter when the whole vehicle is turned OFF from ON/ACC;
setting a finished automobile network dormant state signal, wherein the finished automobile network dormant state signal is used for identifying a finished automobile power supply state and an OFF-gear finished automobile network dormant state;
after the whole vehicle is powered off, starting a network dormancy monitoring timer at a vehicle remote monitoring terminal, and in a dormancy period, if the whole vehicle network is dormant, stopping timing by the network dormancy monitoring timer; if the whole vehicle network fails to sleep, clearing the network sleep monitoring timer, adding 1 to a network sleep failure counter, and restarting to attempt sleep in the next sleep cycle; and identifying whether the vehicle cannot enter the dormancy or not according to the relation between the network dormancy failure counter value and a preset dormancy attempt time threshold value.
In some optional embodiments, the monitoring of the status of the bus message of each network segment in the vehicle bus network by the vehicle remote monitoring terminal to identify whether the vehicle network is frequently awakened includes:
setting an awakening counter, wherein the awakening counter is used for recording the number of times that the vehicle is awakened again after entering the sleep state, and the value of the awakening counter is cleared when the whole vehicle is from ON/ACC to OFF;
setting a finished automobile network dormant state signal, wherein the finished automobile network dormant state signal is used for identifying a finished automobile power supply state and an OFF-gear finished automobile network dormant state;
when the bus message exists in the network, the vehicle remote monitoring terminal is awakened, when the vehicle remote monitoring terminal is awakened every time when sleeping, the value of an awakening counter is increased by 1, and whether the vehicle network is awakened frequently or not is identified according to the relation between the value of the awakening counter and a preset awakening frequency threshold value.
In some optional embodiments, when the vehicle cannot enter the abnormal state of sleeping or the vehicle network is frequently wakened, the abnormal state that the vehicle cannot enter the sleeping or the vehicle network is frequently wakened is sent to the vehicle cloud platform by the vehicle remote monitoring terminal, including:
when the network dormancy failure counter value is equal to the preset dormancy attempt time threshold value, setting the whole vehicle network dormancy state signal as an OFF gear to indicate that the vehicle cannot be dormant;
when the value of the awakening counter is equal to the preset awakening frequency threshold value, setting the whole vehicle network sleep state signal as an OFF gear to enable the vehicle network to be awakened frequently so as to indicate that the vehicle network is awakened frequently;
the vehicle remote monitoring terminal sends the whole vehicle network dormancy state signal to the vehicle cloud platform, so that the vehicle cloud platform counts the reporting times aiming at the vehicle remote monitoring terminal and forms a report, and meanwhile, the vehicle remote monitoring terminal records a fault code and related information when the fault occurs.
In some optional embodiments, the method further comprises:
setting a trigger reminding mark, wherein the trigger reminding mark is used for recording whether the vehicle remote monitoring terminal reports the whole vehicle network abnormality to the vehicle cloud platform, and when the whole vehicle network dormancy state signal is that the vehicle can not be dormant in the OFF gear or the vehicle network in the OFF gear is frequently awakened, the trigger reminding mark is set to be 1, otherwise, the trigger reminding mark is set to be 0;
when the vehicle is powered on next time, if the trigger reminding mark is 1 at the moment, the vehicle remote monitoring terminal sends the trigger reminding mark to the vehicle machine system, so that the vehicle machine system carries out text or voice reminding on the central control screen when receiving the trigger reminding mark.
In some optional embodiments, the method further comprises:
if the whole vehicle network is in the attempt sleep mode but fails to enter the sleep mode in each preset sleep mode in a power-off period, the network sleep failure counter is increased until 255, when the value reaches 255, the value is kept at 255, and when the vehicle is powered on next time, the vehicle remote monitoring terminal uploads the latest recorded network sleep failure counter value to the vehicle cloud platform;
if the whole vehicle network is in the sleep awakening cycle process all the time in a power-off period, the awakening counter value is increased all the time until 255, when the value reaches 255, the value is kept at 255, and when the vehicle is powered on, the vehicle remote monitoring terminal uploads the awakening counter value recorded last time to the vehicle cloud platform.
According to another aspect of the present invention, a system for monitoring frequent wake-up of a bus network of a whole vehicle is provided, which includes: the system comprises a vehicle remote monitoring terminal, a vehicle cloud platform and a client terminal;
the vehicle remote monitoring terminal is connected with a bus network of a vehicle and is used for monitoring the bus message state of each network segment in the vehicle bus network after the whole vehicle is powered off so as to identify whether the vehicle cannot enter a dormant state or whether the vehicle network is frequently awakened or not after the vehicle is powered off, and when the vehicle network cannot enter the dormant state or the vehicle network is frequently awakened, the abnormal state that the vehicle cannot enter the dormant state or the vehicle network is frequently awakened is sent to the vehicle cloud platform, and when the vehicle network state is normal, each network segment in the vehicle bus network is continuously monitored;
the vehicle cloud platform is used for sending an abnormal state that the vehicle cannot enter the dormancy state or the vehicle network is frequently awakened to the client terminal after receiving the abnormal state that the vehicle cannot enter the dormancy state or the vehicle network is frequently awakened sent by the vehicle remote monitoring terminal;
and the client terminal is used for reminding the user after receiving the abnormal state that the vehicle cannot enter the dormant state or the vehicle network is frequently awakened, which is sent by the vehicle cloud platform, so as to prompt the user that the vehicle cannot enter the dormant state or the vehicle network is frequently awakened.
In some optional embodiments, the vehicle remote monitoring terminal includes: the vehicle bus network monitoring system comprises a communication interface, a central processing unit, a vehicle bus network monitoring module and a communication module;
the vehicle bus network monitoring module is connected with each network segment in the vehicle bus network through a communication interface; the communication module realizes the communication between the vehicle and the vehicle cloud platform;
a vehicle bus network monitoring module for setting a network dormancy monitor timer, a network dormancy failure counter and a wake-up counter, wherein,
the network dormancy failure timer is used for recording the time consumed by the whole vehicle network entering a dormancy state after power is supplied, and the network dormancy monitoring timer is reset when the network dormancy monitoring timer reaches a preset dormancy period; clearing the network dormancy monitoring timer at the moment when the whole vehicle is turned from ON/ACC to OFF;
setting a network dormancy failure counter, wherein the network dormancy failure counter is used for recording the times that the whole vehicle network tries to enter dormancy but fails to successfully sleep, the network dormancy failure counter fails to successfully sleep in a dormancy period, and the value of the network dormancy failure counter is increased by 1; clearing the value of the network dormancy failure counter when the whole vehicle is turned OFF from ON/ACC; setting a finished automobile network dormant state signal, wherein the finished automobile network dormant state signal is used for identifying a finished automobile power supply state and an OFF-gear finished automobile network dormant state;
the awakening counter is used for recording the number of times that the vehicle is awakened again after the vehicle enters the sleep state, and the value of the awakening counter is cleared when the whole vehicle goes from ON/ACC to OFF; setting a finished automobile network dormant state signal, wherein the finished automobile network dormant state signal is used for identifying a finished automobile power supply state and an OFF-gear finished automobile network dormant state;
when the vehicle is in a dormant state and no bus message exists in the vehicle bus network, the vehicle bus network monitoring module and the central processing unit keep dormant;
when the vehicle is in a dormant state and bus messages exist in the vehicle bus network, the vehicle bus network monitoring module and the central processing unit are awakened;
after the whole vehicle is powered off, starting a network dormancy monitoring timer at a vehicle remote monitoring terminal, and in a dormancy period, if the whole vehicle network is dormant, stopping timing by the network dormancy monitoring timer; if the whole vehicle network fails to sleep, clearing the network sleep monitoring timer, adding 1 to a network sleep failure counter, and restarting to attempt sleep in the next sleep cycle; identifying whether the vehicle cannot enter the dormancy state or not according to the relation between the network dormancy failure counter value and a preset dormancy attempt time threshold value;
when the vehicle remote monitoring terminal is awakened every time when sleeping, the value of an awakening counter in the vehicle bus network monitoring module is added with 1, and whether the vehicle network is awakened frequently or not is identified according to the relation between the value of the awakening counter and a preset awakening frequency threshold value.
In some optional embodiments, the vehicle bus network monitoring module is configured to set the vehicle network sleep state signal to an OFF-gear that the vehicle cannot sleep when the network sleep failure counter value is equal to the preset sleep time threshold value, so as to indicate that the vehicle cannot sleep; when the value of the awakening counter is equal to the preset awakening frequency threshold value, setting the whole vehicle network sleep state signal as an OFF gear to enable the vehicle network to be awakened frequently so as to indicate that the vehicle network is awakened frequently; and then, sending the whole vehicle network dormancy state signal to a vehicle cloud platform through a communication module, so that the vehicle cloud platform counts the reporting times aiming at the vehicle remote monitoring terminal and forms a report, and meanwhile, recording a fault code and related information when the fault is generated in the vehicle remote monitoring terminal.
In some optional embodiments, the vehicle bus network monitoring module is further configured to set a trigger reminding flag, where the trigger reminding flag is used to record whether the vehicle remote monitoring terminal reports the vehicle network abnormality to the vehicle cloud platform, and when the vehicle network sleep state signal is that the vehicle in the OFF range cannot sleep or the vehicle network in the OFF range is frequently wakened up, the trigger reminding flag is set to 1, and otherwise, the trigger reminding flag is set to 0; when the vehicle is powered on next time, if the trigger reminding mark is 1 at the moment, the communication module sends the trigger reminding mark to the vehicle-mounted machine system, so that the vehicle-mounted machine system carries out text or voice reminding on the central control screen when receiving the trigger reminding mark.
For example, the following reminding information can be output:
respected user, your good! The caller can remind a user of abnormal power consumption of the favorite vehicle, and the user can return to the store to check as soon as possible in order to avoid the influence on the use of the vehicle due to the power shortage of the whole vehicle. Thank you for the coordination.
In some optional embodiments, the vehicle bus network monitoring module is further configured to, in a power-off period, if the entire vehicle network is in a sleep attempt but fails to enter the sleep mode in each preset sleep mode, increase a network sleep failure counter until 255, when the value reaches 255, keep the value at 255, and when the vehicle is powered on next time, the vehicle remote monitoring terminal uploads a last recorded network sleep failure counter value to the vehicle cloud platform;
in a power-off period, if the whole vehicle network is in a sleep awakening cycle process all the time, the awakening counter value is increased all the time until 255, when the power reaches 255, the power is kept at 255, and when the vehicle is powered on, the vehicle remote monitoring terminal uploads the awakening counter value recorded last time to the vehicle cloud platform.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
in the system and the method for monitoring the vehicle bus network abnormity, when the vehicle remote monitoring terminal judges whether the vehicle can not enter the dormancy state or the vehicle network is frequently awakened by monitoring the bus message state of each network segment of the vehicle, the vehicle cloud platform informs the user terminal of the vehicle bus network abnormity at the moment. Meanwhile, the vehicle remote monitoring terminal can record fault codes and relevant information when faults occur, and the information comprises the time when the faults occur, a network dormancy failure counter, a wake-up counter and the like, so that maintenance is assisted. The vehicle cloud platform can count the reporting times of the vehicle remote monitoring terminal and form a report. The vehicle fault problem timely maintenance is effectively reminded to the user, the vehicle feeding condition is reduced, the vehicle condition when the fault occurs is monitored, and the problem is quickly located.
Drawings
Fig. 1 is a schematic flow chart of a method for monitoring vehicle bus network abnormality according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a system for monitoring vehicle bus network abnormality according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating connection of modules of a system for monitoring vehicle bus network abnormality according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example one
The embodiment of the invention provides a method for monitoring the abnormality of a bus network of a whole vehicle, which comprises the following steps:
(1) after the whole vehicle is powered off, the vehicle remote monitoring terminal monitors the bus message state of each network segment in the vehicle bus network so as to identify whether the vehicle cannot enter a dormant state or whether the vehicle network is frequently awakened after the vehicle is powered off;
(2) when the vehicle cannot enter the dormant state or the vehicle network is frequently awakened to be in the abnormal state, the vehicle remote monitoring terminal sends the abnormal state which cannot enter the dormant state or the vehicle network is frequently awakened to the vehicle cloud platform, and the vehicle cloud platform reminds a user of frequent awakening of the whole vehicle bus network at the moment through the client terminal;
(3) when the vehicle network is normal, the vehicle remote monitoring terminal continues to monitor each network segment in the vehicle bus network.
As shown in fig. 1, the vehicle remote monitoring terminal monitors each network segment in the vehicle bus network to identify whether the vehicle cannot go to sleep after powering off or whether the vehicle network is frequently wakened up, which can be specifically implemented in the following manner:
setting a network dormancy monitoring timer Tsleepotime, wherein the network dormancy monitoring timer is used for recording the time consumed by the whole vehicle network entering a dormancy state after power is turned on, and resetting the network dormancy monitoring timer when the network dormancy monitoring timer reaches a preset dormancy period; clearing the network dormancy monitoring timer at the moment when the whole vehicle is turned from ON/ACC to OFF;
setting a network dormancy failure counter Cunablesleep, wherein the value of the network dormancy failure counter is used for recording the number of times of dormancy failure of a vehicle in each preset dormancy period, and resetting the value of the network dormancy failure counter when the whole vehicle is from ON/ACC to OFF;
setting a wake-up counter Cwakeupcounter, wherein the wake-up counter Cwakeupcounter is used for recording the number of times that the vehicle is awakened again after entering sleep, and resetting the value of the wake-up counter when the whole vehicle is from ON/ACC to OFF;
setting a finished automobile network dormancy state signal VehicleNMstate, wherein the finished automobile network dormancy state signal VehicleNMstate is used for identifying the finished automobile power supply state and the OFF gear finished automobile network dormancy state;
such as: the power state of the whole vehicle and the signal length of 1bit are specifically defined as follows: 0 represents an OFF gear; 1 represents a non-OFF gear;
the sleep state of the whole vehicle network of the OFF gear, the signal length 2bit, are specifically defined as follows: 0 represents a reservation; 1 represents sleep; 2 means not sleeping and the vehicle cannot go to sleep; 3 means not sleeping and the vehicle is frequently awakened.
After the whole vehicle is powered off, the vehicle remote monitoring terminal starts a network dormancy monitoring timer, when a bus message exists in a network, the vehicle remote monitoring terminal cannot be dormant, and in a dormancy period, if the whole vehicle network is dormant, the network dormancy monitoring timer stops timing; if the whole vehicle network cannot sleep, clearing the network sleep monitoring timer, adding 1 to a network sleep failure counter, and restarting to try to sleep in the next sleep cycle; and identifying whether the vehicle cannot enter the dormancy or not according to the relation between the network dormancy failure counter value and a preset dormancy attempt time threshold value.
After the whole vehicle is powered off, the whole vehicle network sleeps, when a bus message exists in the network, the vehicle remote monitoring terminal is awakened, when no bus message exists in the network, the vehicle remote monitoring terminal can sleep, when the vehicle remote monitoring terminal is awakened after sleeping every time, the value of an awakening counter is increased by 1, and whether the vehicle network is awakened frequently or not is identified according to the relation between the value of the awakening counter and a preset awakening frequency threshold value.
In this embodiment, when the vehicle cannot enter the abnormal state of sleeping or the vehicle network is frequently wakened up, the vehicle remote monitoring terminal sends the abnormal state of the vehicle that the vehicle cannot enter the sleeping or the vehicle network is frequently wakened up to the vehicle cloud platform, and the following modes can be implemented:
when the network dormancy failure counter value is equal to a preset dormancy attempt time threshold Ctrysleepmax, the whole vehicle network is considered to be incapable of dormancy, and a whole vehicle network dormancy state signal is set to be an OFF gear and the vehicle is incapable of dormancy so as to indicate that the vehicle is incapable of dormancy;
when the value of the awakening counter is equal to a preset awakening time threshold Cwakeupmax, the whole vehicle network is considered to be awakened frequently, the whole vehicle network sleep state signal is set to be an OFF gear, and the vehicle is awakened frequently, so that the vehicle network is indicated to be awakened frequently;
the vehicle remote monitoring terminal sends the whole vehicle network dormancy state signal to the vehicle cloud platform, so that the vehicle cloud platform counts the reporting times aiming at the vehicle remote monitoring terminal and forms a report, and meanwhile, the vehicle remote monitoring terminal records a fault code and related information when the fault occurs.
Wherein Ctrysleepmax and Cwakeupmax can be remotely configured through the vehicle cloud platform.
The vehicle remote monitoring terminal records fault information when the network abnormal state occurs, the relevant information when the fault occurs comprises information such as fault generation time, a network dormancy failure counter value and a wakeup counter value, and after-sales maintenance personnel can read fault codes frequently wakened by the whole vehicle bus network and relevant information when the fault occurs by using a diagnostic instrument so as to assist maintenance.
In this embodiment, the method further includes:
setting a trigger reminding flag TriggerFlag, wherein the trigger reminding flag is used for recording whether a vehicle remote monitoring terminal reports the whole vehicle network abnormality to a vehicle cloud platform, and when a whole vehicle network dormancy state signal is OFF gear, a vehicle cannot be dormant or the OFF gear vehicle network is frequently awakened, the trigger reminding flag is set to be 1, otherwise, the trigger reminding flag is set to be 0, and when the whole vehicle is turned OFF from ON/ACC, the TriggerFlag is reset;
when the vehicle is powered on next time, if the trigger reminding mark is 1 at the moment, the vehicle remote monitoring terminal sends the trigger reminding mark to the MP5 vehicle machine system, so that the MP5 vehicle machine system carries out text or voice reminding on the central control screen when receiving the trigger reminding mark.
In some optional embodiments, the above method further comprises:
if the whole vehicle network is in the attempt sleep mode but fails to enter the sleep mode in each preset sleep mode in a power-OFF period (namely before the vehicle is powered on from an OFF gear to the next time), the network sleep failure counter is increased until 255, when the value reaches 255, the value is kept at 255, and when the vehicle is powered on next time, the vehicle remote monitoring terminal uploads the latest recorded network sleep failure counter value to the vehicle cloud platform;
if the whole vehicle network is in the sleep awakening cycle process all the time in a power-OFF period (namely from an OFF gear to before next power-on), the awakening counter value is increased until 255, and is kept at 255 when the value reaches 255, and when the vehicle is powered on next time, the vehicle remote monitoring terminal uploads the awakening counter value recorded last time to the vehicle cloud platform.
Example two
As shown in fig. 2, a system for monitoring an abnormality of a bus network of a finished automobile according to an embodiment of the present invention includes: the system comprises a vehicle remote monitoring terminal, a vehicle cloud platform and a client terminal;
the vehicle remote monitoring terminal is connected with a bus network of a vehicle and is used for monitoring the bus message state of each network segment in the vehicle bus network after the whole vehicle is powered off so as to identify whether the vehicle cannot enter a dormant state or the abnormal state that the vehicle network is frequently awakened after the vehicle is powered off, sending the abnormal state that the vehicle cannot enter the dormant state or the abnormal state that the vehicle network is frequently awakened to a vehicle cloud platform when the vehicle cannot enter the dormant state or the vehicle network is frequently awakened, and continuously monitoring each network segment in the vehicle bus network when the vehicle network state is normal;
the vehicle cloud platform is used for sending the abnormal state that the vehicle cannot enter the dormancy state or the vehicle network is frequently awakened to the client terminal after receiving the abnormal state that the vehicle cannot enter the dormancy state or the vehicle network is frequently awakened sent by the vehicle remote monitoring terminal;
and the client terminal is used for reminding the user that the vehicle cannot enter the dormancy state or the vehicle network is frequently awakened to be in the abnormal state after receiving the abnormal state sent by the vehicle cloud platform, so as to prompt the user that the vehicle cannot enter the dormancy state or the vehicle network is frequently awakened to be in the abnormal state.
As shown in fig. 3, the vehicle remote monitoring terminal includes a communication interface, a central processing unit, a vehicle bus network monitoring module and a communication module;
the vehicle bus network monitoring module is connected with a vehicle bus network through a communication interface; the communication module is mainly used for realizing communication between the vehicle and a vehicle cloud platform;
wherein, vehicle remote monitoring terminal ECU: the vehicle bus network monitoring system is installed on a vehicle, is accessed to each network segment of the vehicle through a communication interface, and integrates a vehicle bus network monitoring module, a central processing unit and a communication module.
The client terminal can be a mobile phone, a tablet computer, a notebook computer, a desktop computer, a palm computer, a Mobile Internet Device (MID) or other terminal devices, and can realize the reminding function through APP software, a wechat public number, a wechat applet, a mobile phone short message and the like in the terminal device.
The vehicle cloud platform can be a cloud background of the vehicle.
In this embodiment, in order to realize that the vehicle cannot enter the sleep state after being powered OFF or the vehicle network is frequently wakened up in an abnormal state, the vehicle cloud platform reminds the user that the vehicle cannot enter the sleep state or the vehicle network is frequently wakened up in an abnormal state through the client terminal.
In the embodiment, when the vehicle is in an OFF state, a vehicle remote monitoring terminal is adopted to monitor the whole vehicle bus network; when the vehicle is in a dormant state, when no bus message exists in the network, the vehicle bus network monitoring module and the central processing unit in the vehicle remote monitoring terminal keep in the dormant state; when a vehicle is in a dormant state, when a bus message exists in a network, a vehicle bus network monitoring module and a central processing unit in a vehicle remote monitoring terminal are awakened, then the vehicle bus network monitoring module in the vehicle remote monitoring terminal monitors a bus network, the bus network is analyzed by the central processing unit, if the abnormal condition that the vehicle cannot enter the dormant state or the vehicle network is frequently awakened is judged, then a communication module is informed to be connected with a vehicle cloud platform through a telecommunication 4G/5G network, and the vehicle cloud platform reminds a user of the abnormal condition that the vehicle cannot enter the dormant state or the vehicle network is frequently awakened through a client terminal; if the vehicle bus network monitoring module in the vehicle remote monitoring terminal judges that the vehicle network is normal, the vehicle bus network monitoring module continues to monitor the vehicle bus.
In this embodiment, the detailed implementation of each module may refer to the description of the above method embodiment, and this embodiment will not be repeated.
It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method and a system for monitoring the abnormality of a bus network of a whole vehicle are characterized by comprising the following steps:
after the whole vehicle is powered off, the vehicle remote monitoring terminal monitors the bus message state of each network segment in the vehicle bus network so as to identify whether the vehicle cannot enter a dormant state or whether the vehicle network is frequently awakened after the vehicle is powered off;
when the vehicle cannot enter the abnormal state of dormancy or the vehicle network is frequently awakened, the abnormal state that the vehicle cannot enter the dormancy or the vehicle network is frequently awakened is sent to the vehicle cloud platform by the vehicle remote monitoring terminal, and the vehicle cloud platform reminds a user of the abnormal state that the vehicle cannot enter the dormancy or the vehicle network is frequently awakened at the moment through the client terminal;
when the vehicle network state is normal, the vehicle remote monitoring terminal continues to monitor each network segment in the vehicle bus network.
2. The method of claim 1, wherein the vehicle remote monitoring terminal monitors the status of the bus messages of each segment in the vehicle bus network to identify whether the vehicle cannot go to sleep after powering down, comprising:
setting a network dormancy monitoring timer, wherein the network dormancy monitoring timer is used for recording the time consumed by the whole vehicle network entering a dormant state after power is turned on, and resetting the network dormancy monitoring timer when the network dormancy monitoring timer reaches a preset dormant period; clearing the network dormancy monitoring timer at the moment when the whole vehicle is turned from ON/ACC to OFF;
setting a network dormancy failure counter, wherein the network dormancy failure counter is used for recording the times of the whole vehicle network trying to enter dormancy but failing to enter dormancy, the dormancy fails in a dormancy period, and the value of the network dormancy failure counter is increased by 1; clearing the value of the network dormancy failure counter when the whole vehicle is turned OFF from ON/ACC;
setting a finished automobile network dormant state signal, wherein the finished automobile network dormant state signal is used for identifying a finished automobile power supply state and an OFF-gear finished automobile network dormant state;
after the whole vehicle is powered off, starting a network dormancy monitoring timer at a vehicle remote monitoring terminal, and in a dormancy period, if the whole vehicle network is dormant, stopping timing by the network dormancy monitoring timer; if the whole vehicle network fails to sleep, clearing the network sleep monitoring timer, adding 1 to a network sleep failure counter, and restarting to attempt sleep in the next sleep cycle; and identifying whether the vehicle cannot enter the dormancy or not according to the relation between the network dormancy failure counter value and a preset dormancy attempt time threshold value.
3. The method of claim 1, wherein the vehicle remote monitoring terminal monitors the status of bus messages of each segment in the vehicle bus network to identify whether the vehicle network is frequently awakened, comprising:
setting an awakening counter, wherein the awakening counter is used for recording the number of times that the vehicle is awakened again after entering the sleep state, and the value of the awakening counter is cleared when the whole vehicle is from ON/ACC to OFF;
setting a finished automobile network dormant state signal, wherein the finished automobile network dormant state signal is used for identifying a finished automobile power supply state and an OFF-gear finished automobile network dormant state;
when the bus message exists in the network, the vehicle remote monitoring terminal is awakened, when the vehicle remote monitoring terminal is awakened every time when sleeping, the value of an awakening counter is increased by 1, and whether the vehicle network is awakened frequently or not is identified according to the relation between the value of the awakening counter and a preset awakening frequency threshold value.
4. The method according to claim 2 or 3, wherein when the vehicle cannot enter the abnormal state of sleeping or the vehicle network is frequently wakened, the abnormal state of the vehicle that the vehicle cannot enter the sleeping or the vehicle network is frequently wakened is sent to the vehicle cloud platform by the vehicle remote monitoring terminal, and the method comprises the following steps:
when the network dormancy failure counter value is equal to the preset dormancy attempt time threshold value, setting the whole vehicle network dormancy state signal as an OFF gear to indicate that the vehicle cannot be dormant;
when the value of the awakening counter is equal to the preset awakening frequency threshold value, setting the whole vehicle network sleep state signal as an OFF gear to enable the vehicle network to be awakened frequently so as to indicate that the vehicle network is awakened frequently;
the vehicle remote monitoring terminal sends the whole vehicle network dormancy state signal to the vehicle cloud platform, so that the vehicle cloud platform counts the reporting times aiming at the vehicle remote monitoring terminal and forms a report, and meanwhile, the vehicle remote monitoring terminal records a fault code and related information when the fault occurs.
5. The method of claim 4, further comprising:
setting a trigger reminding mark, wherein the trigger reminding mark is used for recording whether the vehicle remote monitoring terminal reports the whole vehicle network abnormality to the vehicle cloud platform, and when the whole vehicle network dormancy state signal is OFF gear, the vehicle cannot be dormant or the vehicle network is frequently awakened, the trigger reminding mark is set to be 1, otherwise, the trigger reminding mark is set to be 0;
when the vehicle is powered on next time, if the trigger reminding mark is 1 at the moment, the vehicle remote monitoring terminal sends the trigger reminding mark to the vehicle machine system, so that the vehicle machine system carries out text or voice reminding on the central control screen when receiving the trigger reminding mark.
6. The method of claim 5, further comprising:
if the whole vehicle network is in the process of the cyclic attempt that the whole vehicle network cannot enter the dormancy in a dormancy period in a power-off period, the value of a network dormancy failure counter is increased until 255, when the value reaches 255, the value is kept at 255, and when the vehicle is powered on, the vehicle remote monitoring terminal uploads a network dormancy failure counter which is recorded last time to a vehicle cloud platform;
if the whole vehicle network is in the sleep awakening cycle process all the time in a power-off period, the awakening counter value is increased all the time until 255, when the value reaches 255, the value is kept at 255, and when the vehicle is powered on, the vehicle remote monitoring terminal uploads the awakening counter value recorded last time to the vehicle cloud platform.
7. The utility model provides a whole car bus network anomaly monitoring system which characterized in that includes: the system comprises a vehicle remote monitoring terminal, a vehicle cloud platform and a client terminal;
the vehicle remote monitoring terminal is connected with a bus network of a vehicle and is used for monitoring the message state of each network segment bus in the vehicle bus network after the whole vehicle is powered off so as to identify whether the vehicle cannot enter a dormant state or whether the vehicle network is frequently awakened or not after the vehicle is powered off, when the vehicle cannot enter the dormant state or the abnormal state that the vehicle network is frequently awakened, the abnormal state that the vehicle cannot enter the dormant state or the vehicle network is frequently awakened is sent to the vehicle cloud platform by the vehicle remote monitoring terminal, and the vehicle cloud platform reminds a user of the abnormal state that the vehicle cannot enter the dormant state or the vehicle network is frequently awakened at the moment through the client terminal; when the vehicle network state is normal, the vehicle remote monitoring terminal continues to monitor each network segment in the vehicle bus network;
the vehicle cloud platform is used for sending an abnormal state that the vehicle cannot enter the dormancy state or the vehicle network is frequently awakened to the client terminal after receiving the abnormal state that the vehicle cannot enter the dormancy state or the vehicle network is frequently awakened sent by the vehicle remote monitoring terminal;
and the client terminal is used for reminding the user after receiving the abnormal state that the vehicle cannot enter the dormant state or the vehicle network is frequently awakened, which is sent by the vehicle cloud platform, so as to prompt the user that the vehicle cannot enter the dormant state or the vehicle network is frequently awakened.
8. The system of claim 7, wherein the vehicle remote monitoring terminal comprises: the vehicle bus network monitoring system comprises a communication interface, a central processing unit, a vehicle bus network monitoring module and a communication module;
the vehicle bus network monitoring module is connected with each network segment in the vehicle bus network through a communication interface; the communication module realizes the communication between the vehicle and the vehicle cloud platform;
a vehicle bus network monitoring module for setting a network dormancy monitor timer, a network dormancy failure counter and a wake-up counter, wherein,
the network dormancy failure timer is used for recording the time consumed by the whole vehicle network entering a dormancy state after power is supplied, and the network dormancy monitoring timer is reset when the network dormancy monitoring timer reaches a preset dormancy period; clearing the network dormancy monitoring timer at the moment when the whole vehicle is turned from ON/ACC to OFF;
setting a network dormancy failure counter, wherein the network dormancy failure counter is used for recording the times that the whole vehicle network tries to enter dormancy but fails to successfully sleep, the network dormancy failure counter fails to successfully sleep in a dormancy period, and the value of the network dormancy failure counter is increased by 1; clearing the value of the network dormancy failure counter when the whole vehicle is turned OFF from ON/ACC; setting a finished automobile network dormant state signal, wherein the finished automobile network dormant state signal is used for identifying a finished automobile power supply state and an OFF-gear finished automobile network dormant state;
the awakening counter is used for recording the number of times that the vehicle is awakened again after the vehicle enters the sleep state, and the value of the awakening counter is cleared when the whole vehicle goes from ON/ACC to OFF; setting a finished automobile network dormant state signal, wherein the finished automobile network dormant state signal is used for identifying a finished automobile power supply state and an OFF-gear finished automobile network dormant state;
when the vehicle is in a dormant state and no bus message exists in the vehicle bus network, the vehicle bus network monitoring module and the central processing unit keep dormant;
when the vehicle is in a dormant state and bus messages exist in the vehicle bus network, the vehicle bus network monitoring module and the central processing unit are awakened;
after the whole vehicle is powered off, starting a network dormancy monitoring timer at a vehicle remote monitoring terminal, and in a dormancy period, if the whole vehicle network is dormant, stopping timing by the network dormancy monitoring timer; if the whole vehicle network fails to sleep, clearing the network sleep monitoring timer, adding 1 to a network sleep failure counter, and restarting to attempt sleep in the next sleep cycle; identifying whether the vehicle cannot enter the dormancy state or not according to the relation between the network dormancy failure counter value and a preset dormancy attempt time threshold value;
when the vehicle remote monitoring terminal is awakened every time when sleeping, the value of an awakening counter in the vehicle bus network monitoring module is added with 1, and whether the vehicle network is awakened frequently or not is identified according to the relation between the value of the awakening counter and a preset awakening frequency threshold value.
9. The system of claim 8, wherein the vehicle bus network monitoring module is configured to set the vehicle network hibernation state signal to an OFF-gear that the vehicle cannot hibernate when the network hibernation failure counter value is equal to the preset hibernation number threshold value, so as to indicate that the vehicle cannot hibernate; when the value of the awakening counter is equal to the preset awakening frequency threshold value, setting the whole vehicle network sleep state signal as an OFF gear to enable the vehicle network to be awakened frequently so as to indicate that the vehicle network is awakened frequently; and then, sending the whole vehicle network dormancy state signal to a vehicle cloud platform through a communication module, so that the vehicle cloud platform counts the reporting times aiming at the vehicle remote monitoring terminal and forms a report, and meanwhile, recording a fault code and related information when the fault is generated in the vehicle remote monitoring terminal.
10. The system of claim 9, wherein the vehicle bus network monitoring module is further configured to, during a power-down period, keep the entire vehicle network in a cyclic attempt process that cannot enter the sleep mode during a sleep period, increase the value of the network sleep failure counter until 255, when the value reaches 255, keep the value at 255, and when the vehicle is powered on, the vehicle remote monitoring terminal uploads the last recorded network sleep failure counter to the vehicle cloud platform; in a power-off period, if the whole vehicle network is in a sleep awakening cycle process all the time, the awakening counter value is increased all the time until 255, when the power reaches 255, the power is kept at 255, and when the vehicle is powered on, the vehicle remote monitoring terminal uploads the awakening counter value recorded last time to the vehicle cloud platform.
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