CN112445201B - Remote troubleshooting and fault positioning method and device - Google Patents
Remote troubleshooting and fault positioning method and device Download PDFInfo
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- CN112445201B CN112445201B CN202011297866.5A CN202011297866A CN112445201B CN 112445201 B CN112445201 B CN 112445201B CN 202011297866 A CN202011297866 A CN 202011297866A CN 112445201 B CN112445201 B CN 112445201B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The invention provides a remote troubleshooting and fault locating method and a device, which are characterized in that fault data are obtained in time when a vehicle breaks down, the approximate position of a fault controller is firstly determined, the specific position of the fault controller is further determined, the specific position of at least one fault controller is accurately located, and the remote troubleshooting and the locating of the fault of the vehicle controller are realized under the condition that the vehicle is not disassembled; and the communication between the central gateway and the power distribution box realizes the on-off control of the power supplies of different controllers. The invention responds to the client demand in time through remote operation, and avoids the problems of manpower and financial resources waste in field operation, influence on automobile reliability caused by frequent plugging and unplugging of the controller, and possible damage to the automobile in the process of disassembly and assembly.
Description
Technical Field
The invention belongs to the technical field of automobile fault diagnosis, and particularly relates to a remote troubleshooting and fault positioning method and device.
Background
Carry out high temperature at the car, the severe cold, when experimental or transport to other places and test and after-market vehicle break down, the testing personnel, 4S shop personnel CAN only read the fault code, judge whether whole car pencil short circuit or virtual connection, when single controller goes wrong, also CAN't lock the controller, need design research personnel to rush to the scene and carry out troubleshooting this moment, because the trouble is not certain recurring, lead to the unable analysis of problem, when the trouble reappears, need singly break off every controller from the CAN bus in proper order, consequently, need pull out the controller, it is more difficult to disassemble the operation to the vehicle of having assembled, especially easy to disassemble the process and cause fish tail etc. to after-market vehicle.
One prior art in-vehicle terminal includes a gateway and a T-Box, where the gateway is configured to obtain a diagnosis instruction, send a diagnosis request to a controller, obtain fault information fed back by the controller, and send the fault information to the T-Box. The T-Box is a data transmission device and is used for obtaining a diagnosis instruction sent by a user and sending the diagnosis instruction to the gateway, and is also used for obtaining fault information sent by the gateway and sending the fault information to the remote diagnosis server, and the fault information is transmitted to the remote diagnosis server or sent to the user through the T-Box. The user terminal comprises a mobile phone terminal and a computer terminal, and the user sends a diagnosis instruction to the T-Box through the user terminal and obtains feedback. The gateway is connected with each controller through a CAN bus. And the gateway obtains the fault information fed back by the controller through the CAN diagnosis bus.
There is also provided a method of remote diagnosis of a vehicle, comprising the steps of:
s1, a user sends a diagnosis instruction to a vehicle-mounted terminal, and a T-Box on the vehicle-mounted terminal obtains the instruction.
And S2, after the T-Box on the vehicle-mounted terminal and the gateway on the vehicle-mounted terminal pass the safety access verification, the gateway obtains a diagnosis instruction.
And S3, the gateway sends a diagnosis request to the specified controller, obtains the fault information fed back by the controller and sends the fault information to the T-Box.
And S4. the T-Box obtains the fault information sent by the gateway and sends the fault information to the mobile phone terminal, the computer terminal and the remote diagnosis server.
And S5, the remote diagnosis server calls a fault maintenance scheme corresponding to the fault information, when the database of the remote diagnosis server does not have the corresponding fault maintenance scheme, the fault information is sent to a manual service platform, the manual service platform contacts technical experts to perform manual assistance, and after the manual service platform solves the fault information, the fault maintenance scheme is sent to the remote diagnosis server.
And S6, the remote diagnosis server sends a fault maintenance scheme to the user.
However, the above prior art does not disclose how to determine the network segment where the failure controller is located according to the failure code, and determine the approximate location where the failure controller is located; nor how to lock the faulty controller body position after determining the approximate position where the faulty controller is located; and the prior art does not disclose a technical scheme for controlling the on-off of power supplies of different controllers by using a gateway.
Another prior art vehicle-mounted gateway testing method includes the following steps:
s10, acquiring test data and a plurality of routing network segments: the test data comprises data related to vehicle signals and is used for testing a driving network, a comfort network and an infotainment network of the vehicle, wherein the driving network is mainly used for a control system of an engine, a gearbox, a chassis, an air bag and the like which influence the power and the safety of the vehicle.
S20, acquiring the vehicle-mounted equipment corresponding to each routing network segment according to the vehicle-mounted gateway routing table: the vehicle-mounted gateway communicates with each network of the vehicle according to the vehicle-mounted gateway routing table, for example, it is assumed that the network segment 192.168.0.X recorded in the vehicle-mounted gateway routing table corresponds to a vehicle window.
S30, sending the test data to each vehicle-mounted device to obtain the working state corresponding to each vehicle-mounted device: and sending the data to the vehicle-mounted equipment corresponding to each network segment through each network segment, and acquiring the corresponding working state of each vehicle-mounted equipment when receiving the test data.
S40, generating a test result according to the working state and the routing network segment corresponding to each vehicle-mounted device: the specific process of generating the test result according to the working state and the routing network segment corresponding to each vehicle-mounted device is to establish a device state table according to the working state and the routing network segment corresponding to each vehicle-mounted device.
Step S401 is further included after step S40, when the operating state of the vehicle-mounted device is the failure state, obtaining device information of the vehicle-mounted device corresponding to the failure state, and outputting failure prompt information according to the device information.
However, although the prior art discloses that the fault states of the vehicle-mounted devices in different network segments can be obtained, how to determine the approximate network segment position where the fault controller is located is not disclosed; this prior art also does not disclose how to lock the position of the faulty controller after determining the approximate position where the faulty controller is located; it is also not disclosed how to use the gateway to control the power switching of the different controllers.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method and the device are used for remotely troubleshooting and positioning faults when a vehicle has faults and realizing on-off control of power supplies of different controllers.
The technical scheme adopted by the invention for solving the technical problems is as follows: a remote troubleshooting and fault locating method comprises the following steps:
s1: judging the network segment position of the fault controller according to fault data uploaded by the T-BOX;
s2: and the on-off of each controller is controlled by remotely issuing instructions, and the position of at least one fault controller is locked.
According to the scheme, in the step S1, the specific steps are as follows:
s11: when a vehicle breaks down, the T-BOX receives an error frame and automatically uploads controller data of a period of time before and after the fault to a PC (personal computer) end;
s12: the PC terminal issues an instruction to read a fault code of the whole vehicle, and a network segment where a fault controller is located is preliminarily judged according to the distribution network segment condition and the fault code of an error frame in data when a fault occurs;
s13: the PC terminal remotely controls the power distribution box to simultaneously disconnect all the controllers of the network segment, and observes whether the fault phenomenon disappears, if not, the step S11 is circulated; and if the network section where the fault controller is located disappears, determining the network section where the fault controller is located.
Further, in step S2, the specific steps include:
s21: the PC terminal remotely controls the power distribution box to disconnect the network segment where other controllers are located and connect the network segment where the fault controller is located to reproduce faults;
s22: the PC end remotely controls the power distribution box to disconnect a certain controller of the network segment;
s23: observing whether the fault phenomenon disappears, and issuing an instruction for disconnecting the next controller if the fault phenomenon does not disappear; if the fault disappears, the PC terminal issues an instruction to communicate with the controller, and whether the fault reappears or not is observed; if the fault is not repeated, issuing an instruction for disconnecting the next controller; if the fault is repeated, the data of the whole operation process is uploaded to the PC terminal and the controller is locked to have the fault.
Further, the method also comprises the following steps:
s24: the PC end remote control power distribution box is communicated with controllers except the fault controller to observe whether the fault is repeated;
s25: if the fault does not recur, the troubleshooting process is finished; if the failure is recurring, the process loops from step S21 until the failure is no longer recurring.
According to the scheme, the sequence of controlling the on-off of each controller in the step S2 realizes the arrangement and combination of the controllers in the same network segment by issuing instructions through the PC terminal.
A remote troubleshooting and fault locating device comprises a vehicle-mounted part and a remote control part; the vehicle-mounted part comprises a power distribution BOX, a central gateway, a controller and a T-BOX; the remote control part comprises a PC terminal; the power supply output end of the power supply distribution box is connected with the power supply input end of the controller in a way of changing the communication state and is used for distributing direct-current power supply to the controller through the power supply distribution box; the central gateway is respectively connected with a controlled end of the power distribution BOX, a bidirectional transceiving end of the controller and a bidirectional transceiving end of the T-BOX through buses, the T-BOX is connected with the PC end through a cloud end and used for receiving a control command sent by the PC through the cloud end and transmitting the control command to the central gateway, and the central gateway controls the communication state of the power distribution BOX and the controller according to the received control command; the central gateway is also used for uploading the vehicle data read by the central gateway to the PC end sequentially through the T-BOX and the cloud end; and the T-BOX is also used for reading and receiving the fault codes of each controller according to the instruction sent by the PC terminal.
Furthermore, the power supply output end of the storage battery is connected with the power supply input end of the power supply distribution box and is used as an external power supply.
Further, the bus adopts a CAN bus or an Ethernet.
A computer storage medium having stored therein a computer program executable by a computer processor, the computer program performing a remote troubleshooting and fault locating method.
The invention has the beneficial effects that:
1. according to the remote troubleshooting and fault locating method and device, the fault data are acquired when the vehicle breaks down, so that the remote troubleshooting and locating of the fault of the vehicle controller are realized under the condition that the vehicle is not disassembled; through the communication between the central gateway and the power distribution box, the on-off control of the power supplies of different controllers is realized.
2. The invention judges the approximate position of the fault controller in the network segment, firstly determines the approximate position of the fault controller, then further determines the specific position of the fault controller, and accurately positions the specific position of at least one fault controller, thereby achieving the effect of accurately positioning the fault controller.
3. The invention responds to the client demand in time through remote operation, and avoids the problems of wasting manpower and financial resources in field operation, influencing the automobile reliability due to frequent plugging and unplugging of the controller and possibly damaging the automobile in the process of disassembly and assembly.
Drawings
FIG. 1 is a functional block diagram of an embodiment of the present invention.
Fig. 2 is a flow chart of an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the remote troubleshooting and fault location device of the present invention includes a vehicle-mounted part and a remote control part.
The vehicle-mounted part comprises a storage battery, a power distribution BOX, a central gateway, a plurality of controllers and a T-BOX (telematics BOX). Wherein the remote control part is a PC terminal.
Wherein, the power distribution box passes through the power cord with the battery and is connected, and a plurality of controllers pass through the power cord and connect in parallel and the feed through state with the power end of power distribution box CAN change, and the other end and the central gateway of a plurality of controllers pass through CAN bus connection, and wherein, the battery passes through the power distribution box and provides DC power supply for a plurality of controllers.
The power distribution box is connected with the central gateway through the CAN bus, and the central gateway CAN control the change of the communication state of the power distribution box and the controllers according to the control instruction.
The T-BOX is connected with the central gateway through a CAN bus, and the T-BOX of the vehicle-mounted part is connected with the PC end through a cloud.
The PC end can issue a control instruction to the T-BOX through the cloud end, the T-BOX sends the PC end instruction to the central gateway, and the central gateway can control the change of the communication state of the power distribution BOX and the controllers according to the control instruction sent by the T-BOX and control the on-off of each controller.
The central gateway can directly read the data of the whole vehicle and send the data to the T-BOX, the T-BOX uploads the data of the vehicle to the PC end through the cloud end, and the PC end issues an instruction and the T-BOX reads the fault code of each controller and returns the fault code to the T-BOX.
Referring to fig. 2, a flow chart of a remote troubleshooting and fault locating method is shown. When a fault occurs, an error frame is triggered, the T-BOX automatically uploads controller data in a period of time before and after the fault occurs to a PC terminal, the PC terminal issues an instruction to read a fault code of the whole vehicle, the network segment where the fault controller is located can be preliminarily judged through the condition of the distribution network segment of the error frame in the data when the fault occurs and the fault code, namely, the general position where the fault controller is located is firstly determined, and the controller of the network segment can be firstly disconnected during the following operation.
When a fault is recovered, a command for disconnecting a certain controller is issued to the T-BOX through the PC terminal, the T-BOX is forwarded to the central network segment, the central gateway controls the power distribution BOX to disconnect the power supply of the controller, whether the fault phenomenon disappears is observed, if the fault phenomenon does not disappear, a command for disconnecting the next controller is issued, if the fault phenomenon disappears, the control can be closed through the command issued by the PC, whether the fault reappears or not is observed, if the fault phenomenon does not reappear, the command for disconnecting the next controller is issued, and if the fault reappears, the whole operation process data is uploaded to the PC terminal and the controller is locked to have the fault.
The first embodiment is as follows: the following description of the embodiments is made with reference to the accompanying drawings. As shown in fig. 1, the apparatus system for remotely troubleshooting and locating a fault includes a vehicle-mounted part and a remote control part. The vehicle-mounted part comprises a storage battery, a power distribution BOX, a central gateway, controllers and a T-BOX; the remote control part is a PC terminal. The vehicle-mounted part is connected with the PC end through the cloud. The PC end can issue an instruction to the T-BOX through the cloud end, and the T-BOX can upload vehicle data to the PC end through the cloud end. The T-BOX sends the PC end instruction to the central gateway, the central gateway can directly read the whole vehicle data and send the data to the T-BOX, and can also issue an instruction to read the fault code of each controller and send the fault code to the T-BOX; the central gateway can control the power distribution box, the power distribution box is connected with the power ends of the controllers, and the on-off of the controllers can be controlled.
Example two: fig. 2 is a fault location troubleshooting process, when a fault occurs, an error frame triggers the T-BOX to automatically upload data a period of time before and after the fault occurs to the PC, the PC issues an instruction to read a fault code of the entire vehicle, a network segment where a fault controller is located can be preliminarily determined by a condition of a distribution network segment of the error frame in the data when the fault occurs and the fault code, and the controller of the network segment can be disconnected first during the following operation. When the fault is recovered, a command for disconnecting a certain controller is issued to the T-BOX through the PC terminal, the T-BOX forwards the command to the central network segment, the central gateway controls the power distribution BOX to disconnect the power supply of the controller, whether the fault phenomenon disappears is observed, if the fault phenomenon does not disappear, a command for disconnecting the next controller is issued, if the fault phenomenon disappears, the control can be closed through the command issued by the PC, whether the fault reappears, if the fault phenomenon does not reappear, the command for disconnecting the next controller is issued, and if the fault reappears, the data of the whole operation process is uploaded to the PC terminal and the controller is locked to have the fault.
When the controller with the fault is in different network segments, fault troubleshooting can be carried out on each network segment independently according to the method of figure 2. When more than one fault controller exists in the same network segment, fault troubleshooting can be performed by changing the disconnection sequence of the controllers. For example, there are 5 controllers, A, B, C, D, E, F respectively, and B and D as fault controllers on a network segment, and when the network segment is sequentially disconnected A, B, C according to the flow of fig. 2 until the disconnection D, the fault disappears, and the fault controller D is locked. And changing the sequence of the disconnection controllers, and sequentially disconnecting according to the sequence F, E, D, C, B, A until the controller B is disconnected, the fault disappears, and the fault controller B is locked. According to the scheme, the permutation and combination of the controllers of each network segment can be realized through the PC terminal, and the checking according to each permutation and combination sequence can be automatically completed until each fault controller of each network segment is locked.
According to the invention, the controllers are removed from the CAN bus one by one, whether the fault phenomenon disappears or not is observed after the controllers are removed, if the faults still exist after the controllers are removed, the controllers have no problem, the next controllers are continuously removed, and if the faults disappear after the controllers are removed and the faults reappear after the controllers are accessed, the controllers are positioned to have problems. The function of troubleshooting and positioning the communication fault of the controller is realized.
The above embodiments are only used for illustrating the design idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention accordingly, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all equivalent changes and modifications made in accordance with the principles and concepts disclosed herein are intended to be included within the scope of the present invention.
Claims (5)
1. A remote troubleshooting and fault locating method is characterized in that: the method comprises the following steps:
s1: judging the network segment position of the fault controller according to fault data uploaded by the T-BOX, and specifically comprising the following steps:
s11: when a vehicle breaks down, the T-BOX receives an error frame and automatically uploads controller data of a period of time before and after the fault to a PC (personal computer) end;
s12: the PC terminal issues an instruction to read a fault code of the whole vehicle, and the network segment where the fault controller is located is preliminarily judged according to the distribution network segment condition of an error frame in data when a fault occurs and the fault code;
s13: the PC terminal remotely controls the power distribution box to simultaneously disconnect all the controllers of the network segment, and observes whether the fault phenomenon disappears, if not, the step S11 is circulated; if the network segment where the fault controller is located disappears, determining the network segment where the fault controller is located; s2: the on-off of each controller is controlled by remotely issuing instructions, the position of at least one fault controller is locked, and the on-off sequence of each controller is controlled to realize the arrangement and combination of the controllers in the same network segment by issuing instructions from a PC (personal computer) end; the method comprises the following specific steps:
s21: the PC end remotely controls the power distribution box to disconnect the network segment where other controllers are located and communicate the network segment where the fault controller is located to reproduce faults;
s22: the PC end remotely controls the power distribution box to disconnect a certain controller of the network segment;
s23: observing whether the fault phenomenon disappears, and if the fault phenomenon does not disappear, issuing an instruction for disconnecting the next controller; if the fault disappears, the PC terminal issues an instruction to communicate with the controller, and whether the fault reappears or not is observed; if the fault is not repeated, an instruction for disconnecting the next controller is issued; if the fault is repeated, uploading the data of the whole operation process to a PC end and locking the controller to have the fault;
s24: the PC end remote control power distribution box is communicated with controllers except the fault controller to observe whether the fault is repeated;
s25: if the fault does not recur, the troubleshooting process is finished; if the failure recurs, the process loops from step S21 until the failure no longer recurs.
2. The apparatus for a remote troubleshooting and fault location method of claim 1 further comprising: comprises a vehicle-mounted part and a remote control part;
the vehicle-mounted part comprises a power distribution BOX, a central gateway, a controller and a T-BOX;
the remote control part comprises a PC terminal;
the power supply output end of the power supply distribution box is connected with the power supply input end of the controller in a way of changing the communication state and is used for distributing direct-current power supply to the controller through the power supply distribution box; the central gateway is respectively connected with a controlled end of the power distribution BOX, a bidirectional transceiving end of the controller and a bidirectional transceiving end of the T-BOX through buses, the T-BOX is connected with the PC end through a cloud end and used for receiving a control command sent by the PC through the cloud end and transmitting the control command to the central gateway, and the central gateway controls the communication state of the power distribution BOX and the controller according to the received control command; the central gateway is also used for uploading the vehicle data read by the central gateway to the PC end sequentially through the T-BOX and the cloud end; and the T-BOX is also used for reading and receiving the fault codes of each controller according to the instruction sent by the PC terminal.
3. A remote troubleshooting and fault location device as defined in claim 2 wherein: the power output end of the storage battery is connected with the power input end of the power distribution box and is used as an external power supply.
4. A remote troubleshooting and fault locating device as defined in claim 2 wherein: the bus adopts CAN bus or Ethernet.
5. A computer storage medium, characterized in that: stored within it is a computer program executable by a computer processor, the computer program performing a remote troubleshooting and fault localization method of claim 1.
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