CN115220419A - Vehicle offline configuration method and device based on wireless protocol and vehicle - Google Patents
Vehicle offline configuration method and device based on wireless protocol and vehicle Download PDFInfo
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- CN115220419A CN115220419A CN202111518510.4A CN202111518510A CN115220419A CN 115220419 A CN115220419 A CN 115220419A CN 202111518510 A CN202111518510 A CN 202111518510A CN 115220419 A CN115220419 A CN 115220419A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000004913 activation Effects 0.000 claims abstract description 53
- 238000012423 maintenance Methods 0.000 claims abstract description 22
- 230000007123 defense Effects 0.000 claims abstract description 15
- 230000006870 function Effects 0.000 claims description 32
- 230000004044 response Effects 0.000 claims description 18
- 238000013475 authorization Methods 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 8
- 238000004590 computer program Methods 0.000 claims description 5
- 238000012795 verification Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 8
- 230000000875 corresponding effect Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 12
- 238000003745 diagnosis Methods 0.000 description 5
- 230000003213 activating effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000060 site-specific infrared dichroism spectroscopy Methods 0.000 description 1
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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
Abstract
The application discloses a wireless protocol-based finished automobile offline configuration method, a wireless protocol-based finished automobile offline configuration device and a vehicle, wherein the wireless protocol-based finished automobile offline configuration method comprises the following steps: the vehicle automatically connects to a wireless network that does not require password authentication; judging whether the vehicle receives a management frame of an activation request through a wireless network; and if the vehicle receives the management frame of the activation request through the wireless network, entering a corresponding functional mode according to the frame content, wherein the functional mode comprises an offline configuration mode, an after-sales maintenance mode and a security defense mode. Through the mode, the undefined subtype is reserved in the management frame, so that the processes of function opening, safety certification and the like can be integrated, the computing resource consumption of the vehicle is reduced, the safety is improved, and the management problem caused by preset password or key and other certification information is also reduced.
Description
Technical Field
The application relates to the technical field of automotive electronics, in particular to a wireless protocol-based finished automobile offline configuration method and device and an automobile.
Background
At present, when connection authentication is performed in a wireless mode such as WIFI, verification is performed based on a mature WEP/WPA/WPA2 mode and the like. Either way, a password or key pre-configuration is required so that the vehicle will automatically connect to a particular wireless network when the vehicle is off-line in the factory or in a 4S store. The pre-configuration mode has the risk of password or key leakage, and the mode only has the authentication function, needs more application triggering on the upper layer for the function starting of the vehicle, and cannot automatically enter a response configuration or diagnosis mode when in wireless connection.
Disclosure of Invention
The application provides a vehicle offline configuration method and device based on a wireless protocol and a vehicle, and aims to solve the problems that in the prior art, a password or a secret key is leaked, and a response configuration or diagnosis mode can not be automatically entered when wireless connection is not realized.
In order to solve the technical problem, the application provides a finished automobile offline configuration method based on a wireless protocol, which includes: the vehicle automatically connects to a wireless network that does not require password authentication; judging whether the vehicle receives a management frame of an activation request through a wireless network; and if the vehicle receives the management frame of the activation request through the wireless network, entering a corresponding functional mode according to the frame content, wherein the functional mode comprises an offline configuration mode, an after-sales maintenance mode and a security defense mode.
Optionally, the frame content includes function activation configuration information and authorization authentication information, and the entering of the corresponding function mode according to the frame content includes: when the frame content is detected to comprise function activation configuration information and authorization authentication information, entering an off-line configuration mode or an after-sale maintenance mode; and when the frame content is detected not to include the authorization authentication information, entering a security defense mode.
Optionally, after entering the corresponding functional mode according to the frame content, the method further includes: the vehicle replies with the management frame activating the response through the wireless network to inform the vehicle that the verification is completed and the relevant functional mode is started.
Optionally, the wireless protocol is an 802.11 wireless authentication protocol. The frame structure of the 802.11 wireless authentication protocol comprises a management frame and frame contents; the management frame is sixteen bits; the frame contents are filled with information corresponding to the management frame.
Optionally, the subtype of the management frame includes an activation request, an activation reply, a probe request, a probe reply, an authentication request, an authentication reply, a connection request and a connection reply.
Optionally, the finished automobile offline configuration method based on the wireless protocol further includes: before the vehicle is off-line, the subtype of the management frame is predefined and the frame content is filled with the information corresponding to the management frame, so that the function activation and the authorization authentication are realized.
Optionally, if the vehicle does not receive the management frame of the activation request through the wireless network, the wireless network is used to implement the internet access service.
In order to solve the above technical problem, the present application provides a whole vehicle offline configuration device based on a wireless protocol, including: the vehicle is automatically connected to a wireless network without password authentication through the communication module; the judging module is used for judging whether the vehicle receives the management frame of the activation request through a wireless network; and the functional module is used for entering a corresponding functional mode according to the frame content when the vehicle receives the management frame of the activation request through the wireless network, wherein the functional mode comprises an offline configuration mode, an after-sales maintenance mode and a security defense mode.
In order to solve the technical problem, the present application provides an electronic control unit, which includes a memory and a processor, where the memory is connected to the processor, and the memory stores a computer program, and when the computer program is executed by the processor, the entire vehicle offline configuration method based on the wireless protocol is implemented.
In order to solve the technical problem, the present application provides a vehicle including a vehicle body and the electronic control unit.
The application provides a vehicle offline configuration method, a device and a vehicle based on a wireless protocol, and a sub-type which is not defined to be used is reserved through a management frame, and the management frame of an activation request is added; when a vehicle is connected with a wireless network without password authentication and receives a management frame of an activation request, the vehicle can enter a corresponding functional mode according to the frame content, wherein the functional mode comprises an offline configuration mode, an after-sales maintenance mode and a security defense mode. Compared with the prior art, the beneficial effect of this application includes:
(1) Authentication information such as passwords or secret keys does not need to be preset.
(2) The authentication information can be dynamically changed, so that a safer authentication mode is brought while the maintenance and management of the authentication information are avoided.
(3) The authentication and the function starting can be associated together, the upper layer application is not required to monitor and start at any time, and the resource consumption of the vehicle is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart illustrating an embodiment of a vehicle configured or maintained wirelessly using WIFI or the like in the prior art;
FIG. 2 is a schematic diagram of one embodiment of the authentication process of FIG. 1;
FIG. 3 is a schematic flowchart of an embodiment of a vehicle offline configuration method based on a wireless protocol according to the present application;
FIG. 4 is a diagram illustrating an embodiment of a frame structure of the 802.11 wireless authentication protocol of the present application;
FIG. 5 is a schematic diagram of another embodiment of a vehicle offline configuration method based on a wireless protocol according to the present application;
FIG. 6 is a diagram illustrating an embodiment of determining whether an activation request management frame is received in FIG. 5;
fig. 7 is a schematic structural diagram of an embodiment of a finished automobile offline configuration device based on a wireless protocol according to the present application;
fig. 8 is a schematic structural diagram of an embodiment of an electronic control unit according to the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present application, the method, the apparatus and the vehicle for vehicle offline configuration based on the wireless protocol provided in the present application are further described in detail below with reference to the accompanying drawings and the detailed description.
In the prior art, for a scene that a vehicle is configured or maintained in a wireless mode such as WIFI, basically, WIFI wireless is only used as network access, and application requiring an upper layer for function opening is triggered independently.
Referring to fig. 1-2, fig. 1 is a schematic flow chart illustrating an embodiment of a vehicle configured or maintained by using wireless, such as WIFI, in the prior art; fig. 2 is a schematic diagram of an embodiment of the authentication process in fig. 1.
In the prior art, connection authentication of a specific SSID is mainly realized based on pre-embedded authentication information, and additional applications are required to be started to trigger corresponding functions for finished vehicle offline configuration or after-sales maintenance. This solution has the following drawbacks:
(1) There is a risk of password or key leakage. Wireless authentication passwords or secret keys need to be preset in the early stage, and are easy to extract and view, so that authentication information is leaked.
(2) The authentication information cannot be modified, which brings great difficulty to the management of the authentication information. The new vehicle type and the old vehicle type need to adopt uniform authentication information, so that the vehicle types in different periods can be ensured to be accessed to the same network to complete the configuration diagnosis function, and the follow-up failure of regular change of the authentication information is limited. The long-term use of the same authentication information also makes the authentication information more easily leaked.
(3) Authentication and function triggering are separated, and additional upper-layer application cooperation is needed. When operations such as offline configuration or diagnosis and maintenance are required, after the wireless network is connected, functions cannot be started in a correlated manner, upper-layer application is required to be triggered and completed independently, efficiency is low, and corresponding vehicle computing resources are consumed by extra applications.
Based on this, the present application provides a vehicle offline configuration method based on a wireless protocol, please refer to fig. 3, where fig. 3 is a flowchart illustrating an embodiment of the vehicle offline configuration method based on the wireless protocol, in this embodiment, the vehicle offline configuration method based on the wireless protocol may include steps S110 to S130, and each step is as follows:
s110: the vehicle is automatically connected to a wireless network that does not require password authentication.
When the vehicle is off-line in a factory or enters a specific after-sales maintenance area, the vehicle can be automatically connected to a wifi wireless network without password verification. The wifi includes an STA mode and an AP mode.
AP mode: access Point provides wireless Access service, allows other wireless devices to Access, provides data Access, and general wireless router/bridge works in this mode. The AP and the AP are allowed to be connected with each other.
STA mode: station, similar to the wireless terminal, the STA itself does not accept wireless access, and it can connect to the AP, and the general wireless network card works in this mode.
In this embodiment, the vehicle adopts the STA mode, and the device configured and maintained adopts the AP mode.
Further, the wireless protocol of the present embodiment is exemplified by an 802.11 wireless authentication protocol. Please refer to fig. 4, which is a diagram illustrating an embodiment of a frame structure of an 802.11 wireless authentication protocol according to the present application. The frame structure of the 802.11 wireless authentication protocol includes management frames and frame contents.
Specifically, the first two bytes (Frame Control) of the Frame structure is Frame management, which represents information of different frames by sixteen bits, i.e., the management Frame is sixteen bits.
The first two bits (Protocol) of a management frame is typically 00, since there is only one version of the current 802.11 Protocol cluster. The next two bits (Type) define the frame Type, 00 denotes a management frame, 01 denotes a control frame, and 10 denotes a data frame. Four further down bits (Sub type) define the subtype of the frame. In the prior art, the subtype of the management frame includes probe request, probe response, authentication request, authentication response, connection request and connection response.
Unlike the prior art, the present embodiment further defines and uses two undefined management frame subtypes to improve the defects of offline configuration or after-sales maintenance of the entire vehicle based on WIFI wireless at present. The subtypes of the management frame in this embodiment thus include activate request, activate response, probe request, probe response, verify request, verify response, connect request, and connect response.
The activation request and the activation response are subtypes of the newly added management frame in this embodiment. The activation request is used for activating the vehicle to enter a offline configuration mode or an after-sales maintenance mode; the activation reply is used in response to an activation request to access the AP.
Alternatively, in the subtypes of the management frame, 0000 represents a connection request, 0001 represents a connection response, 0111 represents an activation request, 1111 represents an activation response, and more are not listed.
The frame contents are filled with information corresponding to the management frame. For example, in the management frames of the sub-services 0111 and 1111 defined above, the service configuration, authentication information, and the like defined by the sub-services may be filled in the Frame contents (Frame Body). Therefore, the functions of activation and starting of the custom service, authorization and authentication and the like are realized.
It should be noted that 0111 and 1111 are commonly used in the prior art to reserve undefined subtypes, so these two are used in this embodiment to indicate a new activation request and an activation response. However, in other embodiments, other 01 combinations may be used to represent the sub-types, for example, 0000 represents an activation request, 0001 represents an activation response, and the like, and the application does not limit the specific 01 combination of the management frame sub-types, and the specific 01 combination of the management frame sub-types may be set according to the actual situation.
Before the vehicle is off-line, the subtype of the management frame is predefined and the frame content is filled with the information corresponding to the management frame, so that the function activation and the authorization authentication are realized.
S120: it is determined whether the vehicle receives a management frame of the activation request through the wireless network.
After the vehicle is connected to the wireless network, it is necessary to determine whether the vehicle receives a management frame of the activation request through the wireless network. If the vehicle does not receive the management frame of the activation request through the wireless network, the wireless network is used for realizing the internet access service; the subsequent steps are not performed. If the vehicle receives the management frame of the activation request through the wireless network, step S130 is performed.
S130: and if the vehicle receives the management frame of the activation request through the wireless network, entering a corresponding functional mode according to the frame content, wherein the functional mode comprises an offline configuration mode, an after-sales maintenance mode and a security defense mode.
At this time, the vehicle receives a management frame of an activation request through a wireless network, responds to the activation request, further detects frame contents, and enters a corresponding function mode according to the frame contents, wherein the function mode comprises an offline configuration mode, an after-sales maintenance mode and a security defense mode.
Specifically, when it is detected that the frame content includes the function activation configuration information and the authorization authentication information, the offline configuration mode or the after-sales maintenance mode may be entered; and when the frame content is detected not to include the authorization authentication information, entering a security defense mode. When the vehicle enters the safety protection mode, the vehicle can be well protected from being attacked, the attack time window of an attacker is shrunk, and the difficulty of safety attack is improved.
Optionally, after entering the corresponding functional mode according to the frame content, the method may further include step S140, specifically:
s140: the vehicle replies with a management frame activating the response through the wireless network to inform the vehicle that the verification is completed and the relevant functional mode is started.
In summary, the vehicle of the embodiment may enter the specific functional mode seamlessly by automatically connecting to the wireless network without password and checking the specific management frame when the vehicle is in the specific area, such as a factory or after sale. In the embodiment, the reserved subtype of the management frame is defined and used in the 802.11 wireless authentication protocol, so that wireless connection authentication and function triggering are combined while wireless password-free authentication is realized. The method and the device simplify the authentication process and cost, and improve flexibility of finished automobile offline configuration and after-sales maintenance.
Referring to fig. 5, fig. 5 is a schematic diagram of another embodiment of a vehicle offline configuration method based on a wireless protocol according to the present application. Fig. 6 is a diagram illustrating an embodiment of determining whether an activation request management frame is received in fig. 5.
The embodiment defines and uses the reserved subtype of the management frame in the existing WIFI wireless protocol 802.11, and is suitable for scenes such as authentication and custom function starting using the WIFI wireless 802.11 protocol. When the vehicle is off-line configured for the whole vehicle, the WIFI is adopted for off-line configuration, and the vehicle is subjected to wireless diagnosis and maintenance in a 4S shop.
The vehicle is automatically connected to a wireless network without password authentication, whether the vehicle receives a management frame of an activation request through the wireless network is judged, and if not, the vehicle normally uses wireless internet access service.
If yes, further judging whether the vehicle meets the requirements of the user-defined rule, if yes, entering the user-defined modes such as a downloading configuration mode or an after-sale maintenance mode; if not, the vehicle enters a safety defense mode.
Based on the above method for offline configuration of a whole vehicle based on a wireless protocol, the present application further provides a device for offline configuration of a whole vehicle based on a wireless protocol, please refer to fig. 7, fig. 7 is a schematic structural diagram of an embodiment of the device for offline configuration of a whole vehicle based on a wireless protocol according to the present application, in this embodiment, the device for offline configuration of a whole vehicle based on a wireless protocol may include a communication module 710, a determination module 720 and a function module 730.
The communication module 710, through which the vehicle is automatically connected to a wireless network without password authentication;
a judging module 720, configured to judge whether the vehicle receives a management frame of the activation request through a wireless network;
the function module 730 is configured to, when the vehicle receives a management frame of the activation request through the wireless network, enter a corresponding function mode according to a frame content, where the function mode includes an offline configuration mode, an after-sales maintenance mode, and a security defense mode.
Based on the off-line configuration method for the whole vehicle based on the wireless protocol, the present application further provides an electronic control unit, as shown in fig. 8, where fig. 8 is a schematic structural diagram of an embodiment of the electronic control unit of the present application. The electronic control unit 800 may comprise a memory 81 and a processor 82, the memory 81 being connected to the processor 82, the memory 81 having stored thereon a computer program, which when executed by the processor 82, implements the method of any of the embodiments described above. The steps and principles thereof have been described in detail in the above method and will not be described in detail herein.
In the present embodiment, the Electronic Control Unit 800 (ECU) is also called a "driving computer", a "vehicle-mounted computer", and the like.
The processor 82 may also be referred to as a Central Processing Unit (CPU). The processor 82 may be an integrated circuit chip having signal processing capabilities. The processor 82 may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Based on the off-line configuration method of the whole vehicle based on the wireless protocol, the application also provides the vehicle, which comprises a vehicle body and the electronic control unit.
The application discloses a wireless protocol-based finished automobile offline configuration method, a wireless protocol-based finished automobile offline configuration device and a vehicle, wherein the wireless protocol-based finished automobile offline configuration method comprises the following steps: the vehicle automatically connects to a wireless network that does not require password authentication; judging whether the vehicle receives a management frame of an activation request through a wireless network; and if the vehicle receives the management frame of the activation request through the wireless network, entering a corresponding functional mode according to the frame content, wherein the functional mode comprises an offline configuration mode, an after-sales maintenance mode and a security defense mode. Through the mode, the method and the device have the advantages that by designing and using the undefined subtype reserved by the management frame, the processes of function opening, safety certification and the like can be integrated, the computing resource consumption of the vehicle is reduced, the safety is improved, and the management problem caused by the certification information such as the preset password or the secret key is also reduced.
It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application. In addition, for convenience of description, only a part of structures related to the present application, not all of the structures, are shown in the drawings. The step numbers used herein are also for convenience of description only and are not intended as limitations on the order in which the steps are performed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first", "second", etc. in this application are used to distinguish different objects, and are not used to describe a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The above description is only an embodiment of the present application, and is not intended to limit the scope of the present application, and all equivalent structures or equivalent processes performed by the present application and the contents of the attached drawings, which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. A whole vehicle offline configuration method based on a wireless protocol is characterized by comprising the following steps:
the vehicle automatically connects to a wireless network that does not require password authentication;
judging whether the vehicle receives a management frame of an activation request through a wireless network;
and if the vehicle receives a management frame of the activation request through a wireless network, entering a corresponding functional mode according to the frame content, wherein the functional mode comprises an offline configuration mode, an after-sales maintenance mode and a security defense mode.
2. The vehicle offline configuration method based on the wireless protocol according to claim 1, wherein the frame content includes function activation configuration information and authorization authentication information, and the entering of the corresponding function mode according to the frame content includes:
when the frame content is detected to comprise function activation configuration information and authorization authentication information, entering an offline configuration mode or an after-sales maintenance mode;
entering a security defense mode when detecting that the frame content does not include authorization authentication information.
3. The vehicle offline configuration method based on wireless protocol according to claim 1, further comprising, after entering the corresponding functional mode according to the frame content:
and the vehicle replies a management frame with an activation response through the wireless network so as to inform the vehicle that the verification is completed and a related functional mode is started.
4. The vehicle offline configuration method based on wireless protocol according to claim 1,
the wireless protocol is an 802.11 wireless authentication protocol;
the frame structure of the 802.11 wireless authentication protocol comprises a management frame and frame contents;
the management frame is sixteen bits; the frame content is filled with information corresponding to the management frame.
5. The vehicle offline configuration method based on wireless protocol according to claim 4,
the subtype of the management frame includes an activation request, an activation reply, a probe request, a probe reply, an authentication request, an authentication reply, a connection request, and a connection reply.
6. The vehicle offline configuration method based on the wireless protocol according to claim 5, further comprising:
before the vehicle is off-line, the subtype of the management frame is predefined, and the frame content is filled with information corresponding to the management frame, so that function activation and authorization authentication are realized.
7. The vehicle offline configuration method based on wireless protocol according to claim 1,
and if the vehicle does not receive the management frame of the activation request through the wireless network, using the wireless network to realize the internet access service.
8. A whole vehicle offline configuration device based on a wireless protocol is characterized by comprising:
a communication module by which the vehicle is automatically connected to a wireless network that does not require password authentication;
the judging module is used for judging whether the vehicle receives a management frame of an activation request through a wireless network;
the vehicle management system comprises a function module and a security defense module, wherein the function module is used for entering a corresponding function mode according to frame contents when the vehicle receives a management frame of an activation request through a wireless network, and the function mode comprises an offline configuration mode, an after-sales maintenance mode and a security defense mode.
9. An electronic control unit, comprising a memory and a processor, wherein the memory is connected to the processor, and the memory stores a computer program, and when the computer program is executed by the processor, the off-line configuration method of the whole vehicle based on the wireless protocol is realized according to any one of claims 1 to 7.
10. A vehicle characterized by comprising a vehicle body and the electronic control unit of claim 9.
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| CN202111518510.4A CN115220419B (en) | 2021-12-13 | 2021-12-13 | Whole vehicle offline configuration method and device based on wireless protocol and vehicle |
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| CN202111518510.4A CN115220419B (en) | 2021-12-13 | 2021-12-13 | Whole vehicle offline configuration method and device based on wireless protocol and vehicle |
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| CN115220419B (en) | 2023-11-21 |
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