CN111273641B - Vehicle remote diagnosis connecting device - Google Patents
Vehicle remote diagnosis connecting device Download PDFInfo
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- CN111273641B CN111273641B CN202010144621.2A CN202010144621A CN111273641B CN 111273641 B CN111273641 B CN 111273641B CN 202010144621 A CN202010144621 A CN 202010144621A CN 111273641 B CN111273641 B CN 111273641B
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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
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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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
Abstract
The invention discloses a vehicle remote diagnosis connecting device, comprising: the device comprises a VCI interface, a first data transmission module, a first communication module, a server, a second communication module and a second data transmission module; the diagnostic equipment is connected with the first data transmission module through the VCI interface; the server is in communication connection with the first data transmission module through the first communication module; the server is in communication connection with the second data transmission module through the second communication module; the second data transmission module is connected with the vehicle. Through the vehicle remote diagnosis connecting device, when a vehicle breaks down, the diagnosis equipment and the vehicle are connected in a wireless remote connection mode, so that the vehicle can be subjected to fault diagnosis and maintenance without going to a 4S service station, the fault maintenance timeliness and maintenance efficiency are improved, the maintenance time of a user is saved, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of vehicle networking, in particular to a vehicle remote diagnosis connecting device.
Background
In the existing automobile diagnosis mode, an automobile is transported to a 4S service station, a maintenance technician diagnoses the automobile by using special diagnosis equipment, and the automobile is required to go to the 4S service station for field fault diagnosis when a fault occurs. The diagnosis device comprises a diagnosis hardware device and a computer stored with a diagnosis program, wherein the diagnosis hardware device is connected with the vehicle in a wired mode, and fault diagnosis is carried out through the computer stored with the diagnosis program. The vehicle fault can not be confirmed at the first time when the fault occurs by adopting the diagnosis equipment, the vehicle needs to be transported to a 4S service station, the diagnosis equipment is adopted to carry out field fault diagnosis, the fault maintenance timeliness is poor, the maintenance time of a user is consumed, and the user experience is poor.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. Therefore, the invention aims to provide a vehicle remote diagnosis connecting device, when a vehicle has a fault, the diagnosis equipment and the vehicle are connected in a wireless remote connection mode, so that the vehicle can be subjected to fault diagnosis and maintenance without going to a 4S service station, the fault maintenance timeliness and maintenance efficiency are improved, the maintenance time of a user is saved, and the user experience is improved.
In order to achieve the above object, an embodiment of the present invention provides a vehicle remote diagnosis connection device, including: the device comprises a VCI interface, a first data transmission module, a first communication module, a server, a second communication module and a second data transmission module;
the diagnostic equipment is connected with the first data transmission module through the VCI interface;
the server is in communication connection with the first data transmission module through the first communication module;
the server is in communication connection with the second data transmission module through the second communication module;
the second data transmission module is connected with a vehicle; wherein the content of the first and second substances,
the VCI is used for realizing information interaction between the diagnostic equipment and the first data transmission module;
the first data transmission module is used for sending first matching authentication information to the server through the first communication module;
the second data transmission module is used for sending second matching authentication information to the server through the second communication module;
the server is configured to:
matching and authenticating the first data transmission module and the second data transmission module to respectively generate first matching and authenticating information and second matching and authenticating information;
receiving first matching authentication information sent by the first data transmission module to realize connection with diagnostic equipment;
receiving second matching authentication information sent by the second data transmission module to realize connection with a vehicle;
judging whether the first data transmission module is matched with the second data transmission module or not according to the first matching authentication information and the second matching authentication information;
upon determining that the first data transmission module and the second data transmission module match, the diagnostic device makes a remote connection with the vehicle.
According to the vehicle remote diagnosis connecting device provided by the embodiment of the invention, the diagnosis equipment is connected with the first data transmission module through the VC I interface, the server is in communication connection with the first data transmission module through the first communication module, the server is in communication connection with the second data transmission module through the second communication module, the second data transmission module is connected with the vehicle, the server performs matching authentication on the first data transmission module and the second data transmission module, whether the first data transmission module and the second data transmission module are matched or not is judged according to the first matching authentication information sent by the first data transmission module and the second matching authentication information sent by the second data transmission module, the connection accuracy of the diagnosis equipment and the vehicle is ensured, when the vehicle has a fault, the diagnosis equipment and the vehicle are connected in a wireless remote connection mode, so that the vehicle can perform fault diagnosis and maintenance without going to a 4S service station, the failure maintenance timeliness and the maintenance efficiency are improved, the maintenance time of a user is saved, and the user experience is improved.
According to some embodiments of the invention, the vehicle is provided with an on-board diagnostic system OBD, an on-board bus, and an electronic control unit ECU;
the on-board diagnostic system OBD is connected with the electronic control unit ECU through the on-board bus;
the electronic control unit ECU is used for acquiring vehicle bus data;
and the second data transmission module is plugged in a diagnosis interface of the on-board diagnosis system OBD.
According to some embodiments of the invention, the first data transmission module is further configured to:
receiving a remote diagnosis request instruction sent by a diagnosis device through the VCI interface and sending the remote diagnosis request instruction to the server through the first communication module;
receiving vehicle bus data sent by the server and sending the vehicle bus data to diagnostic equipment through the VCI interface for diagnosis;
the server is further configured to:
receiving a remote diagnosis request instruction sent by the first data transmission module and sending the remote diagnosis request instruction to the second data transmission module through the second communication module;
receiving vehicle bus data sent by the second data transmission module and sending the vehicle bus data to the first data transmission module through the first communication module;
the second data transmission module is further configured to:
receiving a remote diagnosis request instruction sent by the server and sending the remote diagnosis request instruction to an Electronic Control Unit (ECU) of the vehicle through a diagnosis interface of an on-board diagnosis system (OBD) of the vehicle;
and receiving vehicle bus data collected by the electronic control unit ECU through a diagnosis interface of the on-board diagnosis system OBD and sending the vehicle bus data to the server through the second communication module.
According to some embodiments of the invention, the second data transmission module comprises: the system comprises a multiplexer, a flash module, a TF-card module, a CPU, a power management module and an LED indication module;
the CPU is respectively connected with the multiplexer, the flash module, the TF-card module, the power management module and the LED indication module; wherein the content of the first and second substances,
the multiplexer is connected with the vehicle-mounted bus and used for receiving and processing a plurality of paths of signals on the vehicle-mounted bus and then sending the signals to the CPU;
the power supply management module is used for providing power supply for the CPU;
the flash module is used for storing program codes;
the CPU is used for;
receiving signal information processed by the multiplexer, and controlling the TF-card module to store the signal information;
and controlling the LED indicating module to indicate the electric quantity of the power management module.
According to some embodiments of the invention, the first communication module or the second communication module comprises at least one of a 5G communication module, a wifi communication module.
According to some embodiments of the invention, the diagnostic device comprises a computer storing a diagnostic program.
According to some embodiments of the invention, the first communication module is integrated on the first data transmission module;
the second communication module is integrated on the second data transmission module.
According to some embodiments of the invention, the vehicle bus data comprises: the engine comprises the engine, a fuel injection interval, fuel injection quantity, water temperature, air inlet pressure, air inlet temperature, an accelerator, storage battery voltage, atmospheric pressure, water temperature sensor output voltage, air inlet temperature sensor output voltage, atmospheric pressure sensor output voltage, air inlet pressure sensor output voltage and a fault diagnosis code.
According to some embodiments of the invention, the first data transmission module may perform matching authentication with a plurality of the second data transmission modules.
According to some embodiments of the invention, the server is further configured to encrypt and store the data information calculated on the server; the algorithm is as follows:
initial key:
wherein, M is initial information to be stored, N is the attribute type of the initial information, a is a security parameter, b is a cipher text length, and P is a coding length;
encrypting with an initial key:
wherein c is the ID of the initial information, D is a key space, e is a two-dimensional logics mapping function, S is a key stream, D is the storage format of the initial information in the TF-card module, and F is an Encrypt function;
the encrypted data information attribute set is as follows:
wherein Z is an attribute set of the vehicle, X is a real attribute set of the access file, C is a relation function of each internal node, V is an attribute judgment condition, and f is the correlation between the encryption and the access file;
b is a Lagrange interpolation function, g is a scale constant, h is an encryption sensitive function, and y is a sent dynamic key;
computing an information storage access structure:
wherein, i is the position of the data information stored in the server, j is the subset of the data information selection attribute, and k is the new domain authority;
and (3) encrypting and safely storing data information:
wherein m is a vector of the threshold value, and n is a data information encryption sequence.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of a vehicle remote diagnostic connection according to one embodiment of the present invention;
FIG. 2 is a block diagram of a vehicle remote diagnostic connection according to yet another embodiment of the present invention;
fig. 3 is a block diagram of a second data transmission module according to one embodiment of the invention.
Reference numerals:
the vehicle remote diagnosis connecting device comprises a vehicle remote diagnosis connecting device 100, a VCI (virtual vehicle interface) 1, a first data transmission module 2, a first communication module 3, a server 4, a second communication module 5, a second data transmission module 6, a multiplexer 61, a flash module 62, a TF-card module 63, a CPU64, a power management module 65, an LED indication module 66, a diagnosis device 7, a vehicle 8, an on-board diagnosis system OBD81, an on-board bus 82 and an electronic control unit ECU 83.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
A vehicle remote diagnosis connection apparatus 100 according to an embodiment of the present invention will be described with reference to fig. 1 to 3.
Fig. 1 is a block diagram of a vehicle remote diagnosis connection apparatus 100 according to an embodiment of the present invention; as shown in fig. 1, a first embodiment of the present invention provides a vehicle remote diagnosis connection device 100, including: the system comprises a VCI (virtual machine interface) 1, a first data transmission module 2, a first communication module 3, a server 4, a second communication module 5 and a second data transmission module 6;
the diagnostic device 7 is connected with the first data transmission module 2 through the VCI interface 1;
the server 4 is in communication connection with the first data transmission module 2 through the first communication module 3;
the server 4 is in communication connection with the second data transmission module 6 through the second communication module 5;
the second data transmission module 6 is connected with a vehicle 8; wherein the content of the first and second substances,
the VCI interface 1 is used for realizing information interaction between the diagnostic equipment 7 and the first data transmission module 2;
the first data transmission module 2 is configured to send first matching authentication information to the server 4 through the first communication module 3;
the second data transmission module 6 is configured to send second matching authentication information to the server 4 through the second communication module 5;
the server 4 is configured to:
performing matching authentication on the first data transmission module 2 and the second data transmission module 6 to respectively generate first matching authentication information and second matching authentication information;
receiving first matching authentication information sent by the first data transmission module 2, and realizing connection with a diagnosis device 7;
receiving second matching authentication information sent by the second data transmission module 6 to realize connection with the vehicle 8;
judging whether the first data transmission module 2 is matched with the second data transmission module 6 or not according to the first matching authentication information and the second matching authentication information;
upon determining that the first data transmission module 2 and the second data transmission module 6 match, the diagnostic device 7 makes a remote connection with the vehicle 8.
The working principle of the technical scheme is as follows: according to the vehicle remote diagnosis connecting device 100 provided by the embodiment of the invention, the diagnosis equipment 7 is connected with the first data transmission module 2 through the VCI interface 1, the server 4 is in communication connection with the first data transmission module 2 through the first communication module 3, the server 4 is in communication connection with the second data transmission module 6 through the second communication module 5, and the second data transmission module 6 is connected with the vehicle. The VCI Interface 1 is a Vehicle Communication Interface (Vehicle Communication Interface), which is an Interface on an automobile diagnostic apparatus. The server 4 carries out matching authentication on the first data transmission module 2 and the second data transmission module 6, judges whether the first data transmission module 2 and the second data transmission module 6 are matched or not according to first matching authentication information sent by the first data transmission module 2 and second matching authentication information sent by the second data transmission module 6, and ensures the accuracy of connection between the diagnostic equipment 7 and the vehicle 8, and the first data transmission module 2 and the second data transmission module 6 can be installed later and are convenient to install, so that the diagnostic equipment 7 and the vehicle 8 can be conveniently remotely connected, and remote diagnosis and maintenance are carried out.
The beneficial effects of the above technical scheme are that: when the vehicle breaks down, the diagnosis device 7 is connected with the vehicle in a wireless remote connection mode, so that the vehicle can be subjected to fault diagnosis and maintenance without going to a 4S service station, the fault maintenance timeliness and maintenance efficiency are improved, the maintenance time of a user is saved, and the user experience is improved.
Fig. 2 is a block diagram of a vehicle remote diagnosis connection apparatus 100 according to still another embodiment of the present invention; as shown in fig. 2, the vehicle 8 is provided with an on-board diagnostic system OBD81, an on-board bus 82, and an electronic control unit ECU 83;
the on-board diagnostic system OBD81 is connected with the electronic control unit ECU83 through the on-board bus 82;
the electronic control unit ECU83 is used for collecting vehicle bus data;
the second data transmission module 6 is plugged into a diagnostic interface of the on-board diagnostic system OBD 81.
According to some embodiments of the invention, the first data transmission module is further configured to:
receiving a remote diagnosis request instruction sent by a diagnosis device through the VCI interface and sending the remote diagnosis request instruction to the server through the first communication module;
receiving vehicle bus data sent by the server and sending the vehicle bus data to diagnostic equipment through the VCI interface for diagnosis;
the server is further configured to:
receiving a remote diagnosis request instruction sent by the first data transmission module and sending the remote diagnosis request instruction to the second data transmission module through the second communication module;
receiving vehicle bus data sent by the second data transmission module and sending the vehicle bus data to the first data transmission module through the first communication module;
the second data transmission module is further configured to:
receiving a remote diagnosis request instruction sent by the server and sending the remote diagnosis request instruction to an Electronic Control Unit (ECU) of the vehicle through a diagnosis interface of an on-board diagnosis system (OBD) of the vehicle;
and receiving vehicle bus data collected by the electronic control unit ECU through a diagnosis interface of the on-board diagnosis system OBD and sending the vehicle bus data to the server through the second communication module.
The working principle of the technical scheme is as follows: the request process comprises the following steps: when a vehicle breaks down, a maintenance shop sends matching authentication information of the first data transmission module 2 to the server 4 after receiving a vehicle failure message transmitted by a vehicle owner, and the server 4 is in wireless connection with the diagnostic equipment 7 through the first communication module 3, the first data transmission module 2 and the VIC interface; the vehicle owner inserts the second data transmission module 6 on a diagnosis interface of the vehicle-mounted diagnosis system OBD81, sends the matching authentication information of the second data transmission module 6 to the server 4, and the server 4 is in wireless connection with the vehicle through the second communication module 5 and the second data transmission module 6. The server 4 judges whether the first data transmission module 2 and the second data transmission module 6 are matched, and when the first data transmission module 2 and the second data transmission module 6 are determined to be matched, the diagnosis device 7 is remotely connected with the vehicle. Specifically, the diagnostic device 7 sends a remote diagnosis request command to the server 4, and the server 4 sends the remote diagnosis request command to an Electronic Control Unit ECU83(Electronic Control Unit) of the vehicle, which is a microcomputer controller of the vehicle, through a diagnosis interface of an on-board diagnosis system OBD81 of the vehicle.
A feedback process: the electronic control unit ECU83 is used for collecting vehicle bus data, and sends the vehicle bus data to the server 4 through the diagnosis interface of the on-board diagnosis system OBD81, and the server 4 sends the vehicle bus data to the diagnosis device 7 for diagnosis, and displays the final diagnosis result, so that the maintenance technology can clearly know the fault information of the vehicle, and take corresponding measures for processing.
The in-vehicle bus 82 is a communication network for interconnecting the vehicle devices or instruments in the bottom layer of the in-vehicle network, and is an integration of the vehicle network and the in-vehicle device control system.
The On-Board Diagnostic system OBD81(On-Board Diagnostic) monitors the operating conditions of the engine and the operating state of the exhaust gas aftertreatment system at any time, and can read relevant information in the form of fault codes through the standard Diagnostic device 7 and the Diagnostic interface. According to the prompt of the fault code, the maintenance personnel can quickly and accurately determine the nature and the position of the fault.
The beneficial effects of the above technical scheme are that: the vehicle-mounted bus 82 is accessed through a diagnosis interface of the vehicle-mounted diagnosis system OBD81, the vehicle-mounted bus 82 is also connected with the electronic control unit ECU83, the electronic control unit ECU83 achieves the functions of data receiving, processing, message forwarding and the like, corresponding vehicle bus data on the vehicle are obtained and then sent to the server 4 for analysis, a diagnosis result is obtained, the research and development cost of the vehicle remote diagnosis system can be effectively reduced, the remote wireless connection between the vehicle and the diagnosis equipment 7 can be achieved, the maintenance cost and the maintenance man-hour are effectively reduced, and the vehicle maintenance efficiency is improved.
As shown in fig. 3, the second data transmission module includes: multiplexer 61, flash module 62, TF-card module 63, CPU64, power management module 65, LED indicator module 66;
the CPU64 is respectively connected with the multiplexer 61, the flash module 62, the TF-card module 63, the power management module 65 and the LED indication module 66; wherein the content of the first and second substances,
the multiplexer 61 is connected with the vehicle-mounted bus, and is used for receiving and processing multiple paths of signals on the vehicle-mounted bus and then sending the signals to the CPU 64;
the power management module 65 is configured to provide power to the CPU 64;
the flash module 62 is configured to store program codes;
the CPU64 is configured to;
receiving the signal information processed by the multiplexer 61, and controlling the TF-card module 63 to store the signal information;
control the LED indication module 66 to indicate the power of the power management module 65.
The working principle and the beneficial effects of the technical scheme are as follows: the on-board bus 82 includes a CAN bus, a CAN-FD bus, and a K-line bus. The multiplexer 61 receives and processes the multiple signals on the vehicle-mounted bus and then sends the multiple signals to the CPU64, and the CPU64 is used for receiving the signal information processed by the multiplexer 61, controlling the TF-card module 63 to store the signal information, and performing data processing and data storage on the signal information. The power management module 65 is used to provide power to the CPU 64. The LED indication module 66 is used for indicating the power of the power management module 65. The flash module 62 has stored thereon program code that performs the corresponding functions. The second data transmission module has good data processing and data transmission functions and is beneficial to realizing remote diagnosis of the vehicle.
According to some embodiments of the present invention, the first communication module 3 or the second communication module 5 comprises at least one of a 5G communication module and a wifi communication module.
In the prior art, a 3G communication module and a 4G communication module are used for communication, so that the response speed is low, the time delay is high, the interruption condition is easy to occur during remote connection, and the remote connection, remote diagnosis and maintenance are not facilitated. Along with the development of the 5G network, the time delay can be greatly reduced by using the 5G communication module, the remote connection and the remote diagnosis and maintenance are facilitated, and the high efficiency of the remote diagnosis is ensured.
According to some embodiments of the invention, the diagnostic device 7 comprises a computer storing a diagnostic program.
The working principle and the beneficial effects of the technical scheme are as follows: the diagnostic device 7 is a conventional automobile diagnostic device in the prior art, and comprises a diagnostic hardware device and a computer stored with a diagnostic program, the automobile diagnostic device is wirelessly connected with the vehicle, a remote diagnosis request instruction is sent by the computer stored with the diagnostic program, and a final diagnosis result is displayed, so that the maintenance technology can clearly know the fault information of the vehicle, and corresponding measures are taken for processing.
According to some embodiments of the invention, the first communication module 3 is integrated on the first data transmission module 2;
the second communication module 5 is integrated on the second data transmission module 6.
Can make first data transmission module 2 and second data transmission module 6 integrate the degree through above-mentioned technical scheme and improve, reduce and occupy the volume, smaller and more exquisite light.
According to some embodiments of the invention, the vehicle bus data comprises: the engine comprises the engine, a fuel injection interval, fuel injection quantity, water temperature, air inlet pressure, air inlet temperature, an accelerator, storage battery voltage, atmospheric pressure, water temperature sensor output voltage, air inlet temperature sensor output voltage, atmospheric pressure sensor output voltage, air inlet pressure sensor output voltage and a fault diagnosis code. By collecting the vehicle bus data, the vehicle state can be judged conveniently, and vehicle fault diagnosis and maintenance can be facilitated.
According to some embodiments of the present invention, the first data transmission module 2 may perform matching authentication with a plurality of the second data transmission modules 6.
The working principle and the beneficial effects of the technical scheme are as follows: the first data transmission module 2 and the second data transmission module 6 are matched and authenticated, and remote wireless connection between the diagnosis device 7 and the vehicle is facilitated. The first data transmission module 2 can be a data transmission module of a maintenance shop, the second data transmission module 6 can be a data transmission module of a vehicle owner, and the first data transmission module 2 can be matched and authenticated with the plurality of second data transmission modules 6, so that the matching and authentication of the server 4 on the first data transmission module 2 are reduced, and the identification efficiency is improved.
According to some embodiments of the invention, the server is further configured to encrypt and store the data information calculated on the server; the algorithm is as follows:
initial key:
wherein, M is initial information to be stored, N is the attribute type of the initial information, a is a security parameter, b is a cipher text length, and P is a coding length;
encrypting with an initial key:
wherein c is the ID of the initial information, D is the key space, e is the two-dimensional logics mapping function, S is the key stream, D is the storage format of the initial information in the TF-card module 63, and F is the Encrypt function;
the encrypted data information attribute set is as follows:
wherein Z is an attribute set of the vehicle, X is a real attribute set of the access file, C is a relation function of each internal node, V is an attribute judgment condition, and f is the correlation between the encryption and the access file;
b is a Lagrange interpolation function, g is a scale constant, h is an encryption sensitive function, and y is a sent dynamic key;
computing an information storage access structure:
wherein, i is the position of the data information stored in the server, j is the subset of the data information selection attribute, and k is the new domain authority;
and (3) encrypting and safely storing data information:
wherein m is a vector of the threshold value, and n is a data information encryption sequence.
The beneficial effects of the above technical scheme are that: the algorithm completes the encryption safe storage of the calculation data in the server, ensures that the vehicle information and the diagnosis information can be effectively stored, and ensures the safety of the stored information.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A vehicle remote diagnostic connection, comprising: the device comprises a VCI interface, a first data transmission module, a first communication module, a server, a second communication module and a second data transmission module;
the diagnostic equipment is connected with the first data transmission module through the VCI interface;
the server is in communication connection with the first data transmission module through the first communication module;
the server is in communication connection with the second data transmission module through the second communication module;
the second data transmission module is connected with a vehicle; wherein the content of the first and second substances,
the VCI is used for realizing information interaction between the diagnostic equipment and the first data transmission module;
the first data transmission module is used for sending first matching authentication information to the server through the first communication module;
the second data transmission module is used for sending second matching authentication information to the server through the second communication module;
the server is configured to:
receiving first matching authentication information sent by the first data transmission module to realize connection with diagnostic equipment;
receiving second matching authentication information sent by the second data transmission module to realize connection with a vehicle;
judging whether the first data transmission module is matched with the second data transmission module or not according to the first matching authentication information and the second matching authentication information;
upon determining that the first data transmission module and the second data transmission module match, the diagnostic device is remotely connected with the vehicle;
the second data transmission module includes: the system comprises a multiplexer, a flash module, a TF-card module, a CPU, a power management module and an LED indication module;
the CPU is respectively connected with the multiplexer, the flash module, the TF-card module, the power management module and the LED indication module; wherein the content of the first and second substances,
the multiplexer is connected with the vehicle-mounted bus and used for receiving and processing a plurality of paths of signals on the vehicle-mounted bus and then sending the signals to the CPU;
the power supply management module is used for providing power supply for the CPU;
the flash module is used for storing program codes;
the CPU is used for;
receiving signal information processed by the multiplexer, and controlling the TF-card module to store the signal information;
and controlling the LED indicating module to indicate the electric quantity of the power management module.
2. The vehicle remote diagnosis connecting device according to claim 1, wherein an on-board diagnosis system OBD, an on-board bus, an electronic control unit ECU are arranged on the vehicle;
the on-board diagnostic system OBD is connected with the electronic control unit ECU through the on-board bus;
the electronic control unit ECU is used for acquiring vehicle bus data;
and the second data transmission module is plugged in a diagnosis interface of the on-board diagnosis system OBD.
3. The vehicle remote diagnostic connection of claim 2,
the first data transmission module is further configured to:
receiving a remote diagnosis request instruction sent by a diagnosis device through the VCI interface and sending the remote diagnosis request instruction to the server through the first communication module;
receiving vehicle bus data sent by the server and sending the vehicle bus data to diagnostic equipment through the VCI interface for diagnosis;
the server is further configured to:
receiving a remote diagnosis request instruction sent by the first data transmission module and sending the remote diagnosis request instruction to the second data transmission module through the second communication module;
receiving vehicle bus data sent by the second data transmission module and sending the vehicle bus data to the first data transmission module through the first communication module;
the second data transmission module is further configured to:
receiving a remote diagnosis request instruction sent by the server and sending the remote diagnosis request instruction to an Electronic Control Unit (ECU) of the vehicle through a diagnosis interface of an on-board diagnosis system (OBD) of the vehicle;
and receiving vehicle bus data collected by the electronic control unit ECU through a diagnosis interface of the on-board diagnosis system OBD and sending the vehicle bus data to the server through the second communication module.
4. The vehicle remote diagnostic connection apparatus of claim 1, wherein the first communication module or the second communication module comprises at least one of a 5G communication module, a wifi communication module.
5. The vehicle remote diagnostic connection as set forth in claim 1 wherein said diagnostic device comprises a computer having a diagnostic program stored thereon.
6. The vehicle remote diagnostic connection of claim 1, wherein said first communication module is integrated on said first data transmission module;
the second communication module is integrated on the second data transmission module.
7. The vehicle remote diagnostic connection of claim 2, wherein said vehicle bus data comprises: the engine comprises the engine, a fuel injection interval, fuel injection quantity, water temperature, air inlet pressure, air inlet temperature, an accelerator, storage battery voltage, atmospheric pressure, water temperature sensor output voltage, air inlet temperature sensor output voltage, atmospheric pressure sensor output voltage, air inlet pressure sensor output voltage and a fault diagnosis code.
8. The vehicle remote diagnostic connection of claim 1, wherein said first data transmission module is adapted to be authenticated as being compatible with a plurality of said second data transmission modules.
9. The vehicle remote diagnosis connection apparatus according to claim 1, wherein the server is further configured to encrypt and store data information calculated on the server; the algorithm is as follows:
initial key:
wherein, M is initial information to be stored, N is the attribute type of the initial information, a is a security parameter, b is a cipher text length, and P is a coding length;
encrypting with an initial key:
wherein c is the ID of the initial information, D is a key space, e is a two-dimensional logics mapping function, S is a key stream, D is the storage format of the initial information in the TF-card module, and F is an Encrypt function;
the encrypted data information attribute set is as follows:
wherein Z is an attribute set of the vehicle, X is a real attribute set of the access file, C is a relation function of each internal node, V is an attribute judgment condition, and f is the correlation between the encryption and the access file;
b is a Lagrange interpolation function, g is a scale constant, h is an encryption sensitive function, and y is a sent dynamic key;
computing an information storage access structure:
wherein, i is the position of the data information stored in the server, j is the subset of the data information selection attribute, and k is the new domain authority;
and (3) encrypting and safely storing data information:
wherein m is a vector of the threshold value, and n is a data information encryption sequence.
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