CN110677422B - Automobile remote control system and method - Google Patents
Automobile remote control system and method Download PDFInfo
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- CN110677422B CN110677422B CN201910943318.6A CN201910943318A CN110677422B CN 110677422 B CN110677422 B CN 110677422B CN 201910943318 A CN201910943318 A CN 201910943318A CN 110677422 B CN110677422 B CN 110677422B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0478—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload applying multiple layers of encryption, e.g. nested tunnels or encrypting the content with a first key and then with at least a second key
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions
- H04L9/3239—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD
Abstract
The invention belongs to the technical field of automobile control, and particularly relates to an automobile remote control system and method, wherein the system comprises a user side, a server and a vehicle side; the user side is used for inputting an operation instruction; the server is used for receiving the operation instruction input by the user side and sending the operation instruction of the user side to the vehicle side; the vehicle end is used for receiving the operation instruction sent by the server and executing corresponding operation according to the operation instruction; the server is further used for sending a verification instruction to the user side when the user side sends the connection instruction, and after the user side passes verification, the server sends the operation instruction to the vehicle side. By using the method and the system, when the user side sends the first operation instruction, the server can send the verification instruction, and after the user side passes the verification, the server sends the operation instruction to the vehicle side. The risk that the vehicle is stolen after being maliciously monitored can be reduced.
Description
Technical Field
The invention belongs to the technical field of automobile control, and particularly relates to an automobile remote control system and method.
Background
With the development of electronic and electrical technologies, the automobile field is continuously developing towards intellectualization, people have higher and higher requirements for intellectualization and comfort of automobiles, and the remote control system of automobiles is an aspect of much attention.
The remote control system of the car, with the car networking is relevant, so-called car networking, is that the vehicle-mounted equipment on the vehicle utilizes all vehicle dynamic information in the information network platform effectively through the wireless communication technology, offer different functional services in the vehicle operation.
At present, an automobile remote control system is mainly connected with a mobile phone APP of a user through a mobile network (for example, a 4G network) after an intelligent traffic system ITS (intelligent Transport system) is installed in an on-vehicle network system, so that the running cycle and the static and dynamic information of a vehicle are monitored and transmitted, and the air conditioner, the remote whistle vehicle positioning, the automatic driving, the automatic parking and the like can be remotely controlled through the mobile phone APP.
However, when the mobile phone is connected with the vehicle, if someone else is maliciously monitored, the user may face the risk of stealing the password, and if a lawbreaker maliciously stealing the password establishes connection with the vehicle, the user may face the risk of stealing the vehicle.
Disclosure of Invention
The invention provides an automobile remote control system and method aiming at the problem that in the prior art, if a user is maliciously monitored, the vehicle is in a risk of being stolen.
The basic scheme provided by the invention is as follows:
the automobile remote control system comprises a user side, a server and a vehicle side;
the user side is used for inputting an operation instruction;
the server is used for receiving the operation instruction input by the user side and sending the operation instruction of the user side to the vehicle side;
the vehicle end is used for receiving the operation instruction sent by the server and executing corresponding operation according to the operation instruction;
the server is further used for sending a verification instruction to the user side when the user side sends the connection instruction, and after the user side passes verification, the server sends the operation instruction to the vehicle side.
Basic scheme theory of operation and beneficial effect:
after the user terminal inputs the operation instruction, the server receives the operation instruction and sends the operation instruction to the vehicle terminal, and the vehicle terminal executes corresponding operation after receiving the operation instruction sent by the server. Therefore, the user side can remotely control the vehicle side.
When the user side sends the first operation instruction, the server sends a verification instruction, after the user side passes the verification, the server sends the verification instruction to the user side, and after the user side passes the verification, the server sends the operation instruction to the vehicle side. Therefore, the situation that interference instructions are sent to the vehicle end intentionally or unintentionally by other people to cause confusion of signals received by the vehicle end can be avoided.
Meanwhile, compared with the prior art, the risk that the vehicle is stolen after being maliciously monitored can be reduced.
Further, the user side comprises a first communication module, an input module, a connection request module, a password module and an encryption module;
the first communication module is used for communicating with the server;
the input module is used for inputting an operation instruction;
the connection request module is used for sending a connection request signal;
the password module is used for inputting a verification password;
the encryption module is used for encrypting the input authentication password;
the server comprises a second communication module, a receiving module, a sending module, a verification module and a passing module;
the receiving module is used for receiving an operation instruction and a connection request signal sent by a user side;
the sending module is used for sending a verification instruction to the user side;
the verification module is used for verifying the received encrypted ciphertext;
and the passing module is used for passing the verification when the verification result of the verification module is passing.
Therefore, the verification password input by the user can be encrypted and then verified, so that the safety of the system can be enhanced, and the risk of deciphering the password of the user is reduced.
Further, the encryption module comprises a first encryption sub-module, a combination sub-module and a second encryption sub-module;
the first encryption submodule is used for carrying out SHA1 encryption operation on the identity password of the user;
the combining submodule is used for combining the result of the SHA1 after encryption operation and the random character sent by the server into a new character string;
the second encryption submodule is used for carrying out SHAI encryption operation on the combined new character string;
the server also comprises a storage module, wherein a user password ciphertext obtained after the encryption operation of the user SHA1 is stored in the storage module;
the verification module comprises a random character sending sub-module, a searching sub-module, a verification merging sub-module and a comparison sub-module;
the random character sending submodule is used for sending random characters to the user side after receiving a connection request signal of the user side;
the search submodule is used for finding out a corresponding user password ciphertext subjected to SHA1 encryption operation according to the user ID;
the verification and combination submodule is used for combining the random characters sent to the user and the user password ciphertext to obtain a new character string;
the verification encryption submodule is used for carrying out SHA1 encryption on a new character string obtained by merging the verification merging submodules;
the comparison submodule is used for comparing the ciphertext generated by the verification encryption submodule with the received verification ciphertext sent by the user;
the passing module is used for passing the verification when the comparison result of the comparison submodule is consistent.
Since the user password in the storage module is encrypted by the SHA1 and then stored, even the administrator of the system cannot directly see the user password.
Meanwhile, because the characters sent by the random character sending submodule each time are different, the encrypted ciphertext of the SHA1 is combined with the random characters and then encrypted by the SHA1 for the second time, even if a hacker or monitoring software steals the password of a user, replay attack and dictionary attack cannot be carried out on the system, and the safety of the system is greatly improved.
Further, the server also comprises a warning module used for sending an alarm signal to the user side when the verification result of the verification module is failed; the passing module is also used for sending a message of successful verification to the user side when the verification result of the verification module is passed.
Therefore, when the automobile passes the verification, the user can timely know the condition, and if the user does not operate the automobile, the user can be alerted to check whether the user intends to operate the automobile or not in time if the verification fails.
Further, the vehicle end comprises a third communication module, an in-vehicle network and a vehicle control unit VCU;
the in-vehicle network comprises a first network and a second network; the first network and the second network are connected by taking a Vehicle Control Unit (VCU) as a gateway;
the first network comprises a battery management system, an advanced driving assistance system, a navigation system, a remote control system, an intelligent transportation system ITS, a DCC dynamic chassis control system and a micro control unit;
the second network comprises a battery management system, a vehicle data recorder, a horn controller, a vehicle lamp controller, a vehicle-mounted display, a micro control unit, an oil pump controller OPC, an electronic stability system ESP and a hydraulic power-assisted control unit ACMH;
and the intelligent transportation system ITS is communicated with the server through a third communication module.
Therefore, the intelligent transportation system ITS is used as a CAN node of the whole vehicle and is connected with the in-vehicle network of the whole vehicle. The user side can send various operation instructions to the intelligent transportation system ITS of the vehicle side through the server, and after the intelligent transportation system ITS receives the operation instructions, the corresponding execution mechanism in the in-vehicle network is controlled to execute corresponding actions, so that the remote control of the user on the vehicle is completed.
The receiving module is further used for receiving an operation instruction sent by the user side and a vehicle state fed back by the vehicle side;
the sending module is also used for sending an operation instruction to the vehicle end after the user end passes the verification;
the storage module is also used for storing the operation instruction of the user end and the vehicle state and the driving route fed back by the vehicle end.
Therefore, the server can verify the user, forward the operation instruction, store the operation instruction of the user side and the running route and the vehicle state fed back by the vehicle side, stop the vehicle in time when the user finds that the operation is different from the real-time operation of the vehicle, and know whether the misoperation occurs or the vehicle side breaks down in time by checking the operation instruction and the vehicle state, so that corresponding measures can be taken conveniently.
Based on the system, the application also provides an automobile remote control method, which comprises the following steps:
a connection request step of transmitting a connection request signal to a server;
a verification instruction receiving step of receiving a verification instruction sent by a server;
a password input step of inputting a verified password;
an encryption step of encrypting the input password;
a verification step, verifying the encrypted ciphertext;
a pass step of passing the verification when the result of the verification step is pass;
an operation instruction sending step, namely sending an operation instruction to a vehicle end through a server;
and an executing step, executing the operation instruction.
Therefore, when the user side sends the first operation instruction, the server sends the verification instruction, after the user side passes the verification, the server sends the verification instruction to the user side, and after the user side passes the verification, the server sends the operation instruction to the vehicle side. Therefore, the situation that interference instructions are sent to the vehicle end intentionally or unintentionally by other people to cause confusion of signals received by the vehicle end can be avoided.
Meanwhile, the verification password input by the user is encrypted and then verified, so that the safety of the system can be enhanced, and the risk of deciphering the password of the user is reduced.
Further, in the verification instruction receiving step, random characters sent by the server are also received;
the encryption step comprises a first encryption sub-step, a combining sub-step and a second encryption sub-step;
a first encryption sub-step, performing SHA1 encryption operation on the identity password of the user;
combining the substep, combining the result of the SHA1 encryption operation and the random character sent by the server into a new character string;
a second encryption substep, performing SHAI encryption operation on the combined new character string;
the verification step comprises a searching sub-step, a verification merging sub-step and a comparison sub-step;
a searching sub-step, namely finding out a corresponding user password ciphertext subjected to SHA1 encryption operation according to the user ID;
a verification and combination sub-step, which combines the random character sent to the user with the user password ciphertext to obtain a new character string;
a verification encryption sub-step, namely performing SHA1 encryption on the new character string obtained by combining the verification and combination sub-steps;
a comparison substep, comparing the cipher text generated in the verification and encryption substep with the received verification cipher text sent by the user;
in the pass step, when the comparison result of the comparison sub-step is consistent, the verification is passed.
Thus, since the user password in the storage module is encrypted by the SHA1 and then stored, even the administrator of the system cannot directly see the user password.
Meanwhile, because the characters sent by the random character sending submodule each time are different, the encrypted ciphertext of SHA1 is combined with the random characters and then encrypted by SHA1 for the second time, even if the password of the user is stolen by hackers or monitoring software, the system can not be subjected to replay attack and dictionary attack, and the safety of the system is greatly improved
Further, the method also comprises a warning step, wherein when the verification result of the verification step is failed, an alarm signal is sent to the user side; the passing step is also used for sending a message of successful verification to the user terminal when the verification result of the verification step is passing.
Therefore, when the automobile passes the verification, the user can timely know the condition, and if the user does not operate the automobile, the user can be alerted to check whether the user intends to operate the automobile or not in time if the verification fails.
And further, the method also comprises a storage step of storing the operation instruction of the user side and the vehicle state and the driving route fed back by the vehicle side.
Therefore, when the user finds that the operation is different from the real-time operation of the vehicle, the vehicle can be stopped in time, and then the user can know whether the misoperation occurs or the vehicle end has a fault in time by checking the operation instruction and the state of the vehicle, so that the corresponding measures can be taken conveniently.
Drawings
FIG. 1 is a logic block diagram of a first embodiment of a vehicle remote control system and method of the present invention;
FIG. 2 is a logic block diagram of the encryption module of FIG. 1;
FIG. 3 is a logical block diagram of the verification module of FIG. 1;
FIG. 4 is a flowchart of a first embodiment of the present invention;
FIG. 5 is a flow chart of the encryption step of FIG. 4;
fig. 6 is a flowchart of the verification step in fig. 4.
Detailed Description
The following is further detailed by way of specific embodiments:
example one
As shown in fig. 1, the remote control system for a vehicle includes a user terminal and a vehicle terminal. The user terminal communicates with the server through the 5G network.
User terminal
In this embodiment, the user side is a mobile APP.
The user side comprises a first communication module, an input module, a connection request module, a password module and an encryption module;
the first communication module is used for communicating with the server; the input module is used for inputting an operation instruction; the connection request module is used for sending a connection request signal; the password module is used for inputting a verification password; the encryption module is used for encrypting the input authentication password.
As shown in fig. 2, the encryption module includes a first encryption sub-module, a combination sub-module, and a second encryption sub-module.
The first encryption submodule is used for carrying out SHA1 encryption operation on the identity password of the user.
The combining submodule is used for combining the result of the SHA1 encryption operation and the random character sent by the server into a new character string.
And the second encryption submodule is used for carrying out SHAI encryption operation on the combined new character string.
Because the characters sent by the random character sending submodule each time are different, the encrypted ciphertext of the SHA1 is combined with the random characters and then encrypted by the SHA1 for the second time, even if a hacker or monitoring software steals the password of a user, replay attack and dictionary attack cannot be carried out on the system, and the safety of the system is greatly improved.
Server
The server comprises a second communication module, a storage module, a receiving module, a sending module, a verification module, a passing module and a warning module.
The storage module stores a user password ciphertext obtained by encrypting and operating the user SHA 1; the storage module is also used for storing the operation instruction of the user end and the vehicle state and the driving route fed back by the vehicle end.
Since the user password in the storage module is encrypted by the SHA1 and then stored, even the administrator of the system cannot directly see the user password.
Meanwhile, the server can verify the user, forward the operation instruction, store the operation instruction of the user side, and store the driving route and the vehicle state fed back by the vehicle side, when the user finds that the operation is different from the real-time operation of the vehicle, the vehicle can be stopped in time, and then the user can know whether the user has misoperation or the vehicle side has fault by looking over the operation instruction and the vehicle state in time, so that corresponding measures can be taken conveniently.
The receiving module is used for receiving an operation instruction and a connection request signal sent by a user side; the receiving module is also used for receiving the operation instruction sent by the user side and the vehicle state fed back by the vehicle side.
The sending module is used for sending a verification instruction to the user side; and the system is also used for sending an operation instruction to the vehicle end after the user end passes the verification.
The verification module is used for verifying the received encrypted ciphertext;
and the passing module is used for passing the verification and sending a message of successful verification to the user side when the verification result of the verification module is passed.
As shown in fig. 3, the verification module includes a random character sending sub-module, a search sub-module, a verification merging sub-module, and a comparison sub-module;
the random character sending submodule is used for sending random characters to the user side after receiving a connection request signal of the user side;
the search submodule is used for finding out a corresponding user password ciphertext subjected to SHA1 encryption operation according to the user ID;
the verification and combination submodule is used for combining the random characters sent to the user and the user password ciphertext to obtain a new character string;
the verification encryption submodule is used for carrying out SHA1 encryption on a new character string obtained by merging the verification merging submodules;
and the comparison sub-module is used for comparing the ciphertext generated by the verification encryption sub-module with the received verification ciphertext sent by the user.
And the warning module is used for sending an alarm signal to the user side when the verification result of the verification module is failed.
When the verification is passed, the user can timely know the situation, and if the verification fails, the user can be alert to check whether someone attempts to operate the automobile or not in time if the user does not operate the automobile.
Vehicle end
The vehicle end comprises a third communication module, an in-vehicle network and a vehicle control unit VCU;
the in-vehicle network comprises a first network and a second network; the first network and the second network are connected by taking a Vehicle Control Unit (VCU) as a gateway;
the first network comprises a battery management system, an advanced driving assistance system, a navigation system, a remote control system, an intelligent transportation system ITS, a DCC dynamic chassis control system and a micro control unit;
the second network comprises a battery management system, a vehicle data recorder, a horn controller, a vehicle lamp controller, a vehicle-mounted display, a micro control unit, an oil pump controller OPC, an electronic stability system ESP and a hydraulic power-assisted control unit ACMH;
and the intelligent transportation system ITS is communicated with the server through a third communication module.
The ITS is used as a CAN node of the whole vehicle and is connected with the network in the whole vehicle. A user can realize the control of the network in the whole vehicle through the ITS.
The intelligent transportation system ITS is used as a CAN node of the whole vehicle and is connected with the in-vehicle network of the whole vehicle. The user side can send various operation instructions to the intelligent transportation system ITS of the vehicle side through the server, and after the intelligent transportation system ITS receives the operation instructions, the corresponding execution mechanism in the in-vehicle network is controlled to execute corresponding actions, so that the remote control of the user on the vehicle is completed.
As shown in fig. 4, based on the above system, the present application further provides an automobile remote control method, including:
a connection request step of transmitting a connection request signal to a server;
a verification instruction receiving step, namely receiving a verification instruction and random characters sent by a server;
a password input step of inputting a verified password;
an encryption step of encrypting the input password;
a verification step, verifying the encrypted ciphertext;
a passing step, when the result of the verification step is passing, passing the verification and sending a message of successful verification to the user side;
a warning step, when the verification result of the verification step is failed, an alarm signal is sent to the user side;
an operation instruction sending step, namely sending an operation instruction to a vehicle end through a server;
and an executing step, executing the operation instruction.
And a storage step, in which the operation instruction of the user end and the vehicle state and the driving route fed back by the vehicle end are stored.
Wherein, as shown in fig. 5, the encryption step comprises a first encryption sub-step, a combining sub-step and a second encryption sub-step;
a first encryption sub-step, performing SHA1 encryption operation on the identity password of the user;
combining the substep, combining the result of the SHA1 encryption operation and the random character sent by the server into a new character string;
and a second encryption substep of performing SHAI encryption operation on the combined new character string.
As shown in fig. 6, the verification step includes a search sub-step, a verification merge sub-step, and a comparison sub-step;
a searching sub-step, namely finding out a corresponding user password ciphertext subjected to SHA1 encryption operation according to the user ID;
a verification and combination sub-step, which combines the random character sent to the user with the user password ciphertext to obtain a new character string;
a verification encryption sub-step, namely performing SHA1 encryption on the new character string obtained by combining the verification and combination sub-steps;
and a comparison sub-step, comparing the cipher text generated in the verification encryption sub-step with the received verification cipher text sent by the user.
In the pass step, when the comparison result of the comparison sub-step is consistent, the verification is passed.
Example two
Different from the first embodiment, the vehicle end further comprises a signal detection module and a positioning module; the signal detection module is used for detecting signal information of the vehicle in real time and uploading the signal information to the server, and the positioning module is used for detecting position information of the vehicle in real time and uploading the position information to the server. In this embodiment, the positioning module is a GPS module.
The storage module is also used for storing the signal information of the vehicle; the signal information includes signal type, signal operator, signal system, signal strength, time and location information. Besides, the storage module stores base station information, and the base station information comprises base station position, power, height, signal modulation mode and frequency.
The server also comprises a signal prediction module and an antenna adjustment amount calculation module; the signal prediction module is used for predicting the signal intensity according to the current position information, the driving route and the signal intensity recording module of the vehicle.
The antenna adjustment quantity calculation module is used for generating antenna adjustment control quantity according to the base station information, the prediction result of the signal strength, the driving direction and the driving route when the predicted signal strength of the signal prediction module is smaller than M; firstly, calculating the difference value between the current antenna angle and a target angle, namely the position of a base station, then calculating the relative adjusting speed of the antenna according to the driving direction and speed of a vehicle and the rotating speed of an antenna adjusting device, and then calculating the antenna adjusting control quantity including the horizontal rotating angular speed and the time length of the antenna and the vertical rotating angular speed and the time length of the antenna by adopting a PID algorithm.
The vehicle end also comprises an adjusting execution module and a fine adjustment module; the adjusting execution module is used for controlling and adjusting the angle of the antenna according to the antenna adjusting control quantity; the fine adjustment module is used for recording the change condition of the signal intensity in the process of controlling the rotation angle of the antenna and controlling the antenna to rotate to select the angle with the maximum signal intensity in the angle range of plus or minus five percent of the target angle. By the arrangement, the angle of the antenna can be regulated in advance according to the change condition of the road information, and the optimal signal intensity is ensured to be obtained.
In this way, the signal strength prediction module predicts the signal of the vehicle during the running process of the vehicle, and generates the antenna adjustment control quantity according to the base station information, the prediction result of the signal strength, the running direction and the running route when the signal strength of the vehicle is predicted to be less than M. The specific value of M can be specifically set by those skilled in the art according to the specific requirements for the control signal strength.
And then, the adjustment execution module controls and adjusts the angle of the antenna according to the antenna adjustment control quantity, and the fine adjustment module records the change condition of the signal intensity in the process of controlling the rotation angle of the antenna and controls the antenna to rotate to select the angle with the maximum signal intensity in the angle range of plus or minus five percent of the target angle. Good communication signals can be kept during the running process of the vehicle.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. An automobile remote control system, characterized in that: the system comprises a user side, a server and a vehicle side;
the user side is used for inputting an operation instruction;
the server is used for receiving the operation instruction input by the user side and sending the operation instruction of the user side to the vehicle side;
the vehicle end is used for receiving the operation instruction sent by the server and executing corresponding operation according to the operation instruction;
the server is also used for sending a verification instruction to the user side when the user side sends the connection instruction, and after the user side passes the verification, the server sends the operation instruction to the vehicle side;
the vehicle end also comprises a signal detection module and a positioning module; the signal detection module is used for detecting signal information of the vehicle in real time and uploading the signal information to the server, and the positioning module is used for detecting position information of the vehicle in real time and uploading the position information to the server;
the server is also used for storing the signal information of the vehicle; the signal information comprises signal type, signal operator, signal system, signal intensity, time and position information; the server also stores base station information, wherein the base station information comprises base station position, power, height, signal modulation mode and frequency;
the server also comprises a signal prediction module and an antenna adjustment amount calculation module; the signal prediction module is used for predicting the signal intensity according to the current position information, the driving route and the signal intensity recording module of the vehicle;
the antenna adjustment quantity calculation module is used for generating antenna adjustment control quantity according to the base station information, the prediction result of the signal strength, the driving direction and the driving route when the predicted signal strength of the signal prediction module is smaller than M; firstly, calculating a difference value between a current antenna angle and a target angle, namely a position of a base station, then calculating a relative adjusting speed of an antenna according to a vehicle driving direction and speed and a rotating speed of an antenna adjusting device, and then calculating antenna adjusting control quantity comprising an antenna horizontal rotating angular speed and time length and an antenna vertical rotating angular speed and time length by adopting a PID algorithm;
the vehicle end also comprises an adjusting execution module and a fine adjustment module; the adjusting execution module is used for controlling and adjusting the angle of the antenna according to the antenna adjusting control quantity; the fine adjustment module is used for recording the change condition of the signal intensity in the process of controlling the rotation angle of the antenna and controlling the antenna to rotate to select the angle with the maximum signal intensity in the angle range of plus or minus five percent of the target angle.
2. The vehicle remote control system according to claim 1, wherein: the user side comprises a first communication module, an input module, a connection request module, a password module and an encryption module;
the first communication module is used for communicating with the server;
the input module is used for inputting an operation instruction;
the connection request module is used for sending a connection request signal;
the password module is used for inputting a verification password;
the encryption module is used for encrypting the input authentication password;
the server comprises a second communication module, a receiving module, a sending module, a verification module and a passing module;
the receiving module is used for receiving an operation instruction and a connection request signal sent by a user side;
the sending module is used for sending a verification instruction to the user side;
the verification module is used for verifying the received encrypted ciphertext;
and the passing module is used for passing the verification when the verification result of the verification module is passing.
3. The vehicle remote control system according to claim 2, wherein: the encryption module comprises a first encryption sub-module, a combination sub-module and a second encryption sub-module;
the first encryption submodule is used for carrying out SHA1 encryption operation on the identity password of the user;
the combining submodule is used for combining the result of the SHA1 after encryption operation and the random character sent by the server into a new character string;
the second encryption submodule is used for carrying out SHAI encryption operation on the combined new character string;
the server also comprises a storage module, wherein a user password ciphertext obtained after the encryption operation of the user SHA1 is stored in the storage module;
the verification module comprises a random character sending sub-module, a searching sub-module, a verification merging sub-module and a comparison sub-module;
the random character sending submodule is used for sending random characters to the user side after receiving a connection request signal of the user side;
the search submodule is used for finding out a corresponding user password ciphertext subjected to SHA1 encryption operation according to the user ID;
the verification and combination submodule is used for combining the random characters sent to the user and the user password ciphertext to obtain a new character string;
the verification encryption submodule is used for carrying out SHA1 encryption on a new character string obtained by merging the verification merging submodules;
the comparison submodule is used for comparing the ciphertext generated by the verification encryption submodule with the received verification ciphertext sent by the user;
the passing module is used for passing the verification when the comparison result of the comparison submodule is consistent.
4. The vehicle remote control system according to claim 2, wherein: the server also comprises a warning module used for sending an alarm signal to the user side when the verification result of the verification module is failed; the passing module is also used for sending a message of successful verification to the user side when the verification result of the verification module is passed.
5. The vehicle remote control system according to claim 1, wherein: the vehicle end comprises a third communication module, an in-vehicle network and a vehicle control unit VCU;
the in-vehicle network comprises a first network and a second network; the first network and the second network are connected by taking a Vehicle Control Unit (VCU) as a gateway;
the first network comprises a battery management system, an advanced driving assistance system, a navigation system, a remote control system, an intelligent transportation system ITS, a DCC dynamic chassis control system and a micro control unit;
the second network comprises a battery management system, a vehicle data recorder, a horn controller, a vehicle lamp controller, a vehicle-mounted display, a micro control unit, an oil pump controller OPC, an electronic stability system ESP and a hydraulic power-assisted control unit ACMH;
and the intelligent transportation system ITS is communicated with the server through a third communication module.
6. The vehicle remote control system according to claim 3, wherein: the receiving module is also used for receiving an operation instruction sent by the user side and a vehicle state fed back by the vehicle side;
the sending module is also used for sending an operation instruction to the vehicle end after the user end passes the verification;
the storage module is also used for storing the operation instruction of the user end and the vehicle state and the driving route fed back by the vehicle end.
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