CN110888413A - Remote fault diagnosis system and method for movable carrier - Google Patents
Remote fault diagnosis system and method for movable carrier Download PDFInfo
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- CN110888413A CN110888413A CN201911130043.0A CN201911130043A CN110888413A CN 110888413 A CN110888413 A CN 110888413A CN 201911130043 A CN201911130043 A CN 201911130043A CN 110888413 A CN110888413 A CN 110888413A
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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
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0262—Confirmation of fault detection, e.g. extra checks to confirm that a failure has indeed occurred
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
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Abstract
The invention relates to a remote fault diagnosis system and method of a movable carrier, which can analyze and diagnose fault diagnosis data transmitted in real time by a cloud end through fault detection and analysis equipment arranged at a remote end. The problems that a professional is required to go to the site to troubleshoot faults when the movable carrier fails, or real-time diagnosis cannot be carried out by utilizing fault detection and analysis equipment like site fault diagnosis due to the fact that only acquired data are subjected to post-mathematical analysis are solved, remote real-time fault diagnosis is achieved, and adaptability and efficiency of fault diagnosis of the movable carrier are improved.
Description
Technical Field
The invention relates to equipment fault diagnosis technology of a movable carrier, in particular to a remote fault diagnosis system and method of an unmanned vehicle.
Background
When a movable carrier, especially an unmanned vehicle, has a fault, if a driver or after-sales personnel cannot solve the fault, professional personnel are usually required to go to the site to use professional fault detection and analysis equipment to collect messages and analyze the problems. This undoubtedly requires a large expenditure of manpower and material resources, and results in inefficient fault diagnosis.
In addition, in the prior art, the device data of the movable carrier is sent to the cloud through a network, then, a professional downloads the data and performs mathematical analysis, and if the cause of the fault is easy to determine, the device data communicates (for example, communicates) with field personnel (for example, a driver or after-sales personnel) to guide the field personnel to remove the fault. If the reason of the fault is difficult to determine through simple mathematical analysis, the professional further carries professional fault detection and analysis equipment to the site for further data acquisition and fault diagnosis. However, the difficulty of troubleshooting is increased because data cannot be collected at a far end in real time. The method can only adopt a data playback mode to analyze data, thereby reducing the efficiency and the accuracy of fault diagnosis. Meanwhile, the cloud storage space is occupied, so that resource waste and maintenance cost are increased.
Disclosure of Invention
In order to solve the above problem, according to a first aspect of the present invention, there is provided a remote fault diagnosis system for a movable carrier, the system including the movable carrier, a cloud server and a remote diagnosis module, the movable carrier having a carrier end device and a collection communicator, the remote diagnosis module having a fault detection and analysis device;
the acquisition communicator can acquire fault diagnosis data of the carrier end equipment and transmit the fault diagnosis data to the remote diagnosis module through the cloud server, and the fault detection and analysis equipment performs fault diagnosis on the movable carrier in real time based on analysis of the fault diagnosis data.
According to the invention, the fault diagnosis data transmitted in real time by the cloud can be analyzed and the fault can be diagnosed in real time through the fault detection and analysis equipment arranged at the far end. The problems that a professional is required to go to the site to troubleshoot faults when the movable carrier fails, or real-time diagnosis cannot be carried out by utilizing fault detection and analysis equipment like site fault diagnosis due to the fact that only acquired data are subjected to post-mathematical analysis are solved, remote real-time fault diagnosis is achieved, and adaptability and efficiency of fault diagnosis of the movable carrier are improved.
Further, the remote diagnosis module is also provided with a remote controller and a diagnosis interface which are connected with each other, and the fault detection and analysis equipment can be detachably connected in the diagnosis interface;
and the remote controller receives the fault diagnosis data from the cloud server and transmits the fault diagnosis data to the fault detection and analysis equipment through the diagnosis interface.
Further, the diagnostic interface is an OBD interface.
Further, the acquisition communicator realizes P2P transmission of the fault diagnosis data with the remote diagnosis module through the cloud server.
Further, the carrier end device comprises a first carrier end controller and a plurality of controlled devices corresponding to the first carrier end controller, and the first carrier end controller can acquire first state information of the controlled devices;
wherein the fault diagnosis data comprises the first status information, the acquisition communicator being capable of acquiring the first status information from the first carrier-side controller.
Further, the fault diagnosis data further includes second state information of the first carrier-side controller, and the acquisition communicator is capable of acquiring the second state information from the first carrier-side controller.
Further, the first status information and the second status information include: a voltage status signal and/or a current status signal.
In a second aspect of the present invention, there is provided a remote fault diagnosis method for a movable carrier, the method employing the remote fault diagnosis system as described above; the method comprises the following steps:
collecting fault diagnosis data of the carrier end equipment;
transmitting the fault diagnosis data to the cloud server;
the cloud server transmits the fault diagnosis data to the remote diagnosis module;
fault diagnosis is performed on the movable carrier in real time based on the analysis of the fault diagnosis data.
Further, the acquiring the fault diagnosis data of the carrier-side device includes:
the remote diagnosis module sends diagnosis data request information to the acquisition communicator through the cloud server;
and acquiring fault diagnosis data of the carrier end equipment by the acquisition communicator according to the diagnosis data request information.
Further, based on the UDS protocol, the remote diagnosis module sends a request message for diagnostic data to the acquisition communicator, and the acquisition communicator transmits the fault diagnostic data to the remote diagnosis module.
Further, the transmitting the fault diagnosis data to the cloud server and the cloud server transmitting the fault diagnosis data to the remote diagnosis module include:
the acquisition communicator transmits the fault diagnosis data to the cloud server, and the cloud server does not store the fault diagnosis data and directly transmits the fault diagnosis data to the fault detection and analysis equipment.
Further, the acquiring the fault diagnosis data of the carrier-side device includes:
and the acquisition communicator acquires the state information of the controlled equipment from the first carrier end controller through an IO port between the first carrier end controller and the controlled equipment.
Further, the acquiring the fault diagnosis data of the carrier-side device includes:
and the acquisition communicator acquires the second state information from the first carrier end controller through an IO port of the first carrier end controller.
Drawings
Fig. 1 is a schematic structural diagram of a remote fault diagnosis system according to the present invention.
Fig. 2 is a schematic structural diagram of a collection communicator and a carrier-side device in an embodiment of the remote fault diagnosis system of the present invention.
Fig. 3 is a flow chart of the remote fault diagnosis method of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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. It should be noted that the terms "first," "second," "third," and the like in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
For the purpose of facilitating an understanding of the present application, the technical solutions provided in the present application will be described in detail below with reference to specific embodiments. In the present invention, the technical features of the embodiments and the technical features of the embodiments may be combined with each other without conflict.
Referring to fig. 1-3, the remote fault diagnosis system and the remote fault diagnosis method based on the system of the present invention are shown.
The system comprises the movable carrier, a cloud server and a remote diagnosis module, wherein the movable carrier is provided with carrier end equipment and a collection communicator, and the remote diagnosis module is provided with fault detection and analysis equipment. The acquisition communicator can acquire fault diagnosis data of the carrier end equipment and transmit the fault diagnosis data to the remote diagnosis module through the cloud server, and the fault detection and analysis equipment performs fault diagnosis on the movable carrier in real time based on analysis of the fault diagnosis data.
Therefore, the invention can analyze and diagnose the fault diagnosis data transmitted by the cloud in real time through the fault detection and analysis equipment arranged at the far end. The problems that a professional is required to go to the site to troubleshoot faults when the movable carrier fails, or real-time diagnosis cannot be carried out by utilizing fault detection and analysis equipment like site fault diagnosis due to the fact that only acquired data are subjected to post-mathematical analysis are solved, remote real-time fault diagnosis is achieved, and adaptability and efficiency of fault diagnosis of the movable carrier are improved.
In one embodiment of the invention, the remote diagnosis module further has a remote controller and a diagnosis interface connected with each other, and the fault detection and analysis device can be detachably connected in the diagnosis interface. And the remote controller receives the fault diagnosis data from the cloud server and transmits the fault diagnosis data to the fault detection and analysis equipment through the diagnosis interface.
Through fault detection and analysis equipment detachably and diagnosis interface connection, can satisfy the fault diagnosis demand of different types of carriers or different types of equipment in the carrier, controller to can corresponding change have different functions and analysis processing ability's fault detection and analysis equipment, improved fault detection system's adaptability. And unexpected effect is, when the professional brings the on-the-spot fault detection and analysis equipment and can't meet the fault detection demand of the carrier, often need wait for new fault detection and analysis equipment to send to the scene and then can further diagnose, this undoubtedly causes a large amount of latency, and new fault detection and analysis equipment can not guarantee to finish the diagnostic work yet, may also need the process of changing fault detection and analysis equipment. According to the invention, as the fault detection and analysis equipment is arranged at a remote end (usually a station or a maintenance station), and different fault detection and analysis equipment of various types is also usually stored at the remote end, the fault detection and analysis equipment can be conveniently and quickly adapted and replaced to overcome the problems.
Preferably, the diagnostic interface is an OBD interface (On Board Diagnostics) in order to allow a standardized fault detection and evaluation device to be quickly plugged in and replaced.
In one embodiment of the invention, the acquisition communicator realizes P2P transmission of fault diagnosis data between the acquisition communicator and the remote diagnosis module through the cloud server. Namely, the cloud server does not store the fault diagnosis data and directly transmits the fault diagnosis data to the fault detection and analysis equipment. Through the setting, on one hand, occupation of cloud resources is avoided, and on the other hand, the real-time performance of fault detection is improved.
In another embodiment of the present invention, referring to fig. 2, the carrier-side device includes a first carrier-side controller and a plurality of controlled devices corresponding to the first carrier-side controller (through a plurality of ports of the carrier-side controller), and the first carrier-side controller can obtain first state information of the controlled devices, and optionally, the first carrier-side controller may further have second state information representing itself. The acquisition communicator is capable of acquiring the first and second status information from the first carrier-side controller.
The first state information and the second state information include: and a voltage status signal and/or a current status signal (both the voltage and the current status signals can belong to the hard-wired signals of the controller) so as to represent the generation of the corresponding equipment fault. Therefore, the fault diagnosis data can contain the first and second state information, and the collecting communicator can collect the first and second state information from the first carrier-side controller, so as to diagnose the fault condition of the first carrier-side controller and the corresponding controlled devices. Preferably, the collecting communicator collects the first state information of the controlled device from the first carrier-side controller through an IO port (e.g., ports 1-n in fig. 2) between the first carrier-side controller and the controlled device. Optionally, the collecting communicator may further collect the second state information from the first carrier-side controller through an IO port (e.g., port 0 in fig. 2) of the first carrier-side controller.
Referring to fig. 3, the present invention also provides a remote fault diagnosis method of a movable carrier.
In a preferred embodiment, the present invention employs a "request-response" approach. For example, the remote diagnosis module sends diagnosis data request information to the acquisition communicator through the cloud server, and acquires fault diagnosis data of the carrier end device acquired by the communicator according to the diagnosis data request information. Therefore, the far end can be prepared in advance, so that the fault diagnosis data can be received and processed immediately after the request is responded, and the waiting response time of a fault carrier is reduced.
Preferably, the input-output control of "request" and "response" can be realized based on the UDS protocol. For example, if it is desired to obtain the hard-wired signal status (e.g., voltage) of the first carrier-side controller, the hard-wired signal status can be obtained through the UDS protocol in the first carrier-side controller and its corresponding controlled device. The following may be included as exemplary steps:
firstly, through an input/output control service in a UDS protocol, a fault detection and analysis device sends a request message for reading an IO port of a first carrier end controller through a remote controller.
The remote controller then converts the request message into data for transmission, and transmits the data to the acquisition communicator on the carrier through the cloud server by using the P2P technology.
And then, the acquisition communicator restores the request data into a UDS request message, reads the hard-line signal state (such as voltage state) of the IO port of the first carrier-side controller, so as to acquire the hard-line signal state and respond to the UDS request message.
And then, after receiving the UDS response message of the first carrier-side controller, the acquisition communicator converts the response message into data convenient for transmission, and transmits the data to the remote controller through the cloud server by using the P2P technology.
And finally, the remote controller C restores the response data into a UDS response message and sends the UDS response message to fault detection and analysis equipment through an OBD interface to analyze and troubleshoot the data.
As a non-limiting expression, the present invention may also employ bearer proactive responses or other contact establishment means in addition to the preferred "request response" means described above.
Next, the remote fault diagnosis method of a movable carrier of the present invention further includes:
transmitting the fault diagnosis data to a cloud server;
the cloud server transmits the fault diagnosis data to a remote diagnosis module;
and performing fault diagnosis on the movable carrier in real time based on the analysis of the fault diagnosis data.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. A remote fault diagnosis system of a movable carrier is characterized by comprising the movable carrier, a cloud server and a remote diagnosis module, wherein the movable carrier is provided with carrier-end equipment and a collection communicator, and the remote diagnosis module is provided with fault detection and analysis equipment;
the acquisition communicator can acquire fault diagnosis data of the carrier end equipment and transmit the fault diagnosis data to the remote diagnosis module through the cloud server, and the fault detection and analysis equipment performs fault diagnosis on the movable carrier in real time based on analysis of the fault diagnosis data.
2. The remote fault diagnosis system according to claim 1, wherein the remote diagnosis module further has a remote controller and a diagnosis interface connected to each other, the fault detection and analysis device being detachably connectable in the diagnosis interface;
and the remote controller receives the fault diagnosis data from the cloud server and transmits the fault diagnosis data to the fault detection and analysis equipment through the diagnosis interface.
3. The remote fault diagnosis system according to claim 2, characterized in that said diagnosis interface is an OBD interface.
4. The remote fault diagnosis system according to claim 1, wherein the acquisition communicator implements P2P transmission with the remote diagnosis module regarding the fault diagnosis data through the cloud server.
5. The remote fault diagnosis system according to claim 1, wherein the carrier-side device comprises a first carrier-side controller and a plurality of controlled devices corresponding to the first carrier-side controller, and the first carrier-side controller is capable of acquiring first status information of the controlled devices;
wherein the fault diagnosis data comprises the first status information, the acquisition communicator being capable of acquiring the first status information from the first carrier-side controller.
6. The remote fault diagnosis system according to claim 5, wherein the fault diagnosis data further contains second status information of the first carrier-side controller, the acquisition communicator being capable of acquiring the second status information from the first carrier-side controller.
7. The remote fault diagnosis system according to claim 6, wherein the first state information and the second state information include: a voltage status signal and/or a current status signal.
8. A remote failure diagnosis method of a movable carrier, characterized in that the method employs a remote failure diagnosis system according to any one of claims 1 to 7; the method comprises the following steps:
collecting fault diagnosis data of the carrier end equipment;
transmitting the fault diagnosis data to the cloud server;
the cloud server transmits the fault diagnosis data to the remote diagnosis module;
fault diagnosis is performed on the movable carrier in real time based on the analysis of the fault diagnosis data.
9. The remote fault diagnosis method according to claim 8, wherein the collecting fault diagnosis data of the carrier-side device comprises:
the remote diagnosis module sends diagnosis data request information to the acquisition communicator through the cloud server;
and acquiring fault diagnosis data of the carrier end equipment by the acquisition communicator according to the diagnosis data request information.
10. The remote fault diagnosis method according to claim 9, wherein the remote diagnosis module sends a diagnosis data request message to the collection communicator based on a UDS protocol, and the collection communicator transmits the fault diagnosis data to the remote diagnosis module.
11. The remote failure diagnosis method according to any one of claims 8-10, characterized in that the method employs the remote failure diagnosis system according to claim 4; wherein the content of the first and second substances,
the transmitting the fault diagnosis data to the cloud server and the cloud server transmitting the fault diagnosis data to the remote diagnosis module include:
the acquisition communicator transmits the fault diagnosis data to the cloud server, and the cloud server does not store the fault diagnosis data and directly transmits the fault diagnosis data to the fault detection and analysis equipment.
12. The remote failure diagnosis method according to any one of claims 8 to 10, wherein the method employs the remote failure diagnosis system according to any one of claims 5 to 7;
wherein the collecting of fault diagnosis data of the carrier end device comprises:
and the acquisition communicator acquires the first state information of the controlled equipment from the first carrier end controller through an IO port between the first carrier end controller and the controlled equipment.
13. The remote failure diagnosis method according to any one of claims 8 to 10, wherein the method employs the remote failure diagnosis system according to any one of claims 6 to 7;
wherein the collecting of fault diagnosis data of the carrier end device comprises:
and the acquisition communicator acquires the second state information from the first carrier end controller through an IO port of the first carrier end controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911130043.0A CN110888413A (en) | 2019-11-18 | 2019-11-18 | Remote fault diagnosis system and method for movable carrier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911130043.0A CN110888413A (en) | 2019-11-18 | 2019-11-18 | Remote fault diagnosis system and method for movable carrier |
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| CN110888413A true CN110888413A (en) | 2020-03-17 |
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| CN204462839U (en) * | 2015-03-12 | 2015-07-08 | 青岛云连网络科技有限公司 | Electric automobile remote failure diagnosis system |
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Application publication date: 20200317 |