CN116347368A - Vehicle remote control system and method based on mobile phone short message - Google Patents

Vehicle remote control system and method based on mobile phone short message Download PDF

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Publication number
CN116347368A
CN116347368A CN202211626379.8A CN202211626379A CN116347368A CN 116347368 A CN116347368 A CN 116347368A CN 202211626379 A CN202211626379 A CN 202211626379A CN 116347368 A CN116347368 A CN 116347368A
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Prior art keywords
remote control
vehicle
mobile phone
box
control instruction
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CN202211626379.8A
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Chinese (zh)
Inventor
陈志敏
王鑫磊
陶晓勋
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Bertek Automotive Electronics Wuhu Co ltd
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Bertek Automotive Electronics Wuhu Co ltd
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Priority to CN202211626379.8A priority Critical patent/CN116347368A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • H04W12/037—Protecting confidentiality, e.g. by encryption of the control plane, e.g. signalling traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40208—Bus networks characterized by the use of a particular bus standard
    • H04L2012/40215—Controller Area Network CAN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40267—Bus for use in transportation systems
    • H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

The invention discloses a vehicle remote control system and a method based on mobile phone short messages, wherein the system comprises a mobile phone end, a server and a vehicle remote control unit, wherein the remote vehicle control unit and the mobile phone end are respectively connected with the server and are used for acquiring a secret Key SMS Key generated by the server; after triggering the remote control vehicle requirement by a user, the mobile phone terminal generates a remote control instruction according to the type of the remote control instruction and encrypts the remote control instruction by using a received Key SMS Key; the mobile phone end sends the encrypted remote control instruction to the vehicle remote control unit in an SMS mode, and the vehicle remote control unit receives the remote control instruction and then performs corresponding decryption and instruction execution. The invention solves the defect of realizing the stability of the remote control vehicle by TBOX communication, realizes the control of the remote vehicle by a short message mode, and greatly reduces the requirements on network and signals, thereby greatly improving the success rate of the remote control and the effectiveness of the remote control function.

Description

Vehicle remote control system and method based on mobile phone short message
Technical Field
The invention relates to the field of automobile remote control, in particular to a vehicle remote control system and method based on mobile phone short messages.
Background
Aiming at the demand of vehicle remote control in the current market, the vehicle-mounted TBOX is mainly used for remote vehicle control operation based on the Internet of vehicles and the intelligent networking framework; the implementation of remote control sends a remote control instruction to a server through a special mobile phone APP, the remote control instruction is sent to a TBOX at a vehicle end after being decoded by the server, and then the vehicle executes the corresponding remote control instruction. The patent 202010524123.0 discloses a remote control method for a vehicle, the vehicle and a readable storage medium, which are as follows: the vehicle remote control method comprises the following steps: the TBOX control system receives a control instruction and authentication information sent by an external terminal; the TBOX control system sends the authentication information to a PEPS system through a vehicle CAN network, and the TBOX control system and the PEPS system respectively verify the authentication information; and if the TBOX control system and the PEPS system pass the verification, the PEPS system controls the vehicle according to the control instruction.
In this patent it is described that remote vehicle control is performed by means of an on-board TBOX which serves as a vehicle terminal for remote vehicle control, which has the disadvantage that a more stable and reliable network is required, which is not reliable when the network is unstable or in mountain areas.
In the market performance tracking of remote control functions based on server and TBOX models, the success rate of remote control is strictly dependent on network quality and the response state of the server. Feedback regional remote control instruction execution failure is often complained when part of the network is unstable or network signals are complex, or server load is large. In the process of problem analysis and solution, we generally find that in the case of failure of remote execution, mobile phone short messages can be successfully issued almost entirely. Therefore, if the short message is adopted for remote vehicle control, the reliability of control is greatly improved, and the remote control can be stably and effectively realized even in remote mountain areas with poor network.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a vehicle remote control system and method based on mobile phone short messages, which are used for remotely controlling by a short message mode so as to solve the defect that a TBOX scheme cannot reliably control a vehicle due to poor network and weak signals in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the vehicle remote control system based on the mobile phone short message comprises a mobile phone end, a server and a vehicle remote control unit, wherein the remote vehicle control unit and the mobile phone end are respectively connected with the server and are used for acquiring a Key SMS Key generated by the server; after triggering the remote control vehicle requirement by a user, the mobile phone terminal generates a remote control instruction according to the type of the remote control instruction and encrypts the remote control instruction by using a received Key SMS Key; the mobile phone end sends the encrypted remote control instruction to the vehicle remote control unit in an SMS mode, and the vehicle remote control unit receives the remote control instruction and then performs corresponding decryption and instruction execution.
The vehicle remote control unit comprises a control module MCU and an NAD module, wherein the control module MCU is respectively connected to a server and a mobile phone end through the NAD module; and the control module MCU controls the CAN converter to be connected to the vehicle-mounted CAN network.
The NAD module is respectively connected to a signal antenna and an eSIM card module, and the signal antenna is used for receiving signals for sending SMS information; the eSIM card module is used for network registration and network access and information binding of user account numbers.
The control module MCU is connected to the vehicle-mounted network through the CAN converter and is used for decoding and converting the CAN signals of the whole vehicle and the CAN signals of the control module, and the connection between the control module and the vehicle-mounted ECU is established.
The control module MCU is connected with the external storage unit CMMC and is used for log storage or configuration file storage in system operation.
The control system further comprises a voltage conversion and voltage stabilization control unit for supplying power to the control modules MCU, NAD module and EMMS.
A vehicle remote control method based on mobile phone short messages comprises the following steps:
s1, after a vehicle enters an awake mode, a vehicle remote control unit BOX establishes connection with a server through a TLS protocol and logs in the server;
s2, after a vehicle remote control unit BOX is logged in, the server generates a corresponding SMS Key for the BOX;
s3, time calibration is carried out on the BOX of the vehicle remote control unit through the server, and after the time calibration is finished, the server respectively sends the generated SMS Key to the BOX and the smart phone;
s4, after the user triggers the requirement of the remote control vehicle, the mobile phone terminal firstly generates a remote control instruction according to the type of the remote control instruction, and encrypts the remote control instruction by using the received SMS Key;
s5, the encrypted remote control instruction is directly sent to the vehicle BOX in an SMS mode;
s6, after the vehicle remote control unit BOX receives the remote control instruction, corresponding decryption and instruction execution are carried out;
and S7, after the vehicle remote control unit BOX side completes the execution of the remote control instruction, encrypting the execution result and directly sending the execution result to the intelligent mobile phone in an SMS mode.
The server establishes a user database system, maintains BOX information under a vehicle account and intelligent mobile phone information for remote control of a user, and calculates an encryption key in the current period randomly through a set encryption algorithm after the vehicle BOX logs in; and in the effective period time, the secret key is respectively sent to the mobile phone of the user and the BOX.
At the mobile phone end, the user UI of the smart phone program is used for providing a remote operation instruction list which can be operated by a user; a specific storage position is designed in the smart phone program and is used for storing the corresponding key received in each period;
and designing a specific storage area in the mobile phone program, wherein the specific storage area is used for storing the SIM card information of the corresponding BOX unit in the bound remote control vehicle.
After a user initiates a corresponding remote control instruction, the mobile phone program calculates and generates a specific remote control instruction according to a corresponding remote control instruction list and a secret key, and sends the specific remote control instruction to a remote control BOX bound by the user through a mobile phone short message; the remote control unit BOX decrypts the received encrypted control instruction, converts the decrypted control instruction into a CAN signal and sends the CAN signal to the corresponding vehicle-mounted ECU for execution.
The invention has the advantages that: the defect of realizing the stability of the remote control vehicle by TBOX communication is overcome, the control of the remote vehicle is realized by a short message mode, and the requirements on a network and signals are greatly reduced, so that the success rate of the remote control is greatly improved, and the effectiveness of the remote control function is improved; the method has a plurality of adaptation scenes, and can carry out remote control on the environment capable of receiving the short message; the server is only used as key generating equipment, and the mobile phone and the vehicle communicate and transmit control instructions through the encrypted short messages, so that the control is accurate and reliable, and meanwhile, the keys are randomly generated in different periods, so that the system is safe and reliable.
Drawings
The contents of the drawings and the marks in the drawings of the present specification are briefly described as follows:
FIG. 1 is a schematic illustration of a control system of the present invention;
fig. 2 is a schematic diagram of the in-vehicle remote control unit of the present invention.
The Chinese and English comparison in the figure is as follows:
CAN: controller Area Network controller area network
And (3) ECU: electronic Control Unit electronic control unit
NAD: network Access Device network access equipment
Detailed Description
The following detailed description of the invention refers to the accompanying drawings, which illustrate preferred embodiments of the invention in further detail.
As shown in fig. 1, the present application mainly performs remote vehicle control by a short message mode, and because the short message is compared with the network communication of the TBOX, the requirements on the network and the signal are not very strict, and in places where the network signal is not feasible or weak, the short message is normally received and sent, so the present application uses the short message as a medium to perform remote vehicle control, and the specific scheme is as follows:
as shown in fig. 1, a vehicle remote control system based on mobile phone short messages comprises a mobile phone end, a server and a vehicle remote control unit;
the mobile phone end corresponds to an app of the smart phone and is used for inputting a remote control instruction and checking a control result through user operation; the remote vehicle control unit BOX and the mobile phone terminal are respectively connected with the server and are used for acquiring a secret Key SMS Key generated by the server; the server is used for automatically generating a secret key, so that the security between the mobile phone and the BOX communication is facilitated.
After triggering the remote control vehicle requirement by a user, the mobile phone terminal generates a remote control instruction according to the type of the remote control instruction and encrypts the remote control instruction by using a received Key SMS Key; the mobile phone end sends the encrypted remote control instruction to a vehicle remote control unit BOX in an SMS mode;
and the vehicle remote control unit BOX receives the remote control instruction and then performs corresponding decryption and instruction execution, and after the decryption, the control instruction is obtained and then is forwarded to the corresponding vehicle-mounted ECU for execution, so that the purpose of remote control through the short message is achieved.
The vehicle remote control unit BOX mainly receives a remote control instruction of a mobile phone, and is shown in a schematic diagram of the BOX in FIG. 2; the vehicle remote control unit comprises a control module MCU and an NAD module, and the control module MCU is respectively connected to the server and the mobile phone end through the NAD module; the control module MCU controls the CAN converter to be connected to the vehicle-mounted CAN network, and the vehicle ECU is connected to the vehicle-mounted CAN network and is used for receiving and executing a remote control instruction sent by the mobile phone and acquired by the control module MCU.
To obtain the SMS signal of the mobile phone and the access server obtain the key, the NAD module needs a signal antenna and a corresponding eSIM card to realize SMS communication with the mobile phone. The method specifically comprises the following steps: the NAD module is respectively connected to the signal antenna and the eSIM card module, and the signal antenna is used for receiving signals for sending SMS information; the eSIM card module is used for network registration and network access, and information binding of user account numbers.
In the application, the control module MCU is connected to the vehicle-mounted network through the CAN converter and used for decoding and converting the CAN signals of the whole vehicle and the CAN signals of the control module, and establishing the connection between the control module MCU and the vehicle-mounted ECU, so that the MCU receives remote control instructions and CAN be transmitted to each vehicle-mounted ECU through the CAN network, and the remote control is further executed by the ECU.
In the application, the control module MCU is connected with the external storage unit CMMC and used for log storage or configuration file storage in system operation, and data recording in a remote control process is ensured.
In the application, the remote control unit BOX is powered by a voltage conversion and voltage stabilization control unit, and the voltage conversion and voltage stabilization control unit is used for supplying power to the control modules MCU, the NAD module and the EMMS. Meanwhile, in order to ensure reliable Power supply of the vehicle, the vehicle is provided with a backup battery, and the vehicle is used for continuously supplying Power to the MCU and the NAD through a Power management system when the Power supply of the vehicle is abnormal or unstable.
As shown in fig. 2, the control system includes the following functions of each module:
main Connector: the main connector of the BOX is used for connecting power supply of the whole vehicle, CAN signals, vehicle-mounted Ethernet signals and the like after being installed on the vehicle;
power Management: the voltage conversion and voltage stabilization control unit is used for supplying power to devices such as a wireless module, an MCU, a PHY, a CAN converter and the like;
CAN transmitter: the CAN converter is used for decoding and converting the whole vehicle CAN signal and the CAN signal of the module processor;
eth PHY: the Ethernet transceiver is used for converting the received vehicle-mounted Ethernet signal into data in a specific protocol format for NAD use;
NAD module: the comprehensive processing unit supporting the wireless network GSM, WCDMA, LTE, CAN, SPI, UART protocol is used for establishing network connection with the server, receiving the SMS short message, decoding the received wake-up short message into a corresponding vehicle remote control instruction and sending the corresponding vehicle remote control instruction to the MCU;
MCU: the micro controller unit is used for connecting a unit or gateway of the whole vehicle, which needs to receive a remote control instruction, and sending vehicle information to the NAD according to the state of the whole vehicle;
DEBUG: the debugging interface in the development process is used for debugging a developer and outputting module bottom layer information;
EMMC: the external storage unit is used for log storage or configuration file storage in the system operation;
CELL ANT\GNSS ANT: the system comprises a GSM wireless signal antenna and a GPS positioning antenna, and is used for receiving signals for sending SMS information and signals for acquiring positioning information;
eSIM card, used for network registration and network access, and information binding of user account;
backup Battery: and the backup battery is used for continuously supplying Power to the MCU and the NAD through the Power management system when the Power supply of the whole vehicle is abnormal or unstable.
As shown in fig. 1, the present patent solution aims at using a stable information transmission mode of a mobile phone short message for the weak point of the network and the real-time load limitation of the server on the basis of the above general model, and only maintaining an encryption algorithm in the server for the box information binding and encrypted data security of the subsequent execution of the remote instruction. The developed system can stably, reliably and safely transmit the remote control instruction to the vehicle-mounted terminal so as to improve the execution success rate and the effectiveness of the remote control.
The architecture of the present application includes:
server: the server is used for storing a specially designed key algorithm, calculating a unique encryption key through the algorithm in each ignition period of the BOX login server, and respectively transmitting the encryption key to the BOX and the mobile phone;
mobile Phone: the intelligent mobile phone is used for binding with the BOX of the vehicle, receiving the secret key sent by the server, and sending a corresponding remote control short message based on the remote control requirement of the user;
BOX: the vehicle remote control unit is called BOX for short, and is a device supporting a wireless transmission protocol and a whole vehicle CAN network protocol; the key in each ignition period can be acquired through a TCP protocol login server; receiving a remote control short message and transmitting the content of the short message to the whole vehicle for execution;
the vehicle remote control method based on the mobile phone short message comprises the following steps:
s1, after a vehicle enters an awake mode, a vehicle remote control unit BOX establishes connection with a server through a TLS protocol and logs in the server;
s2, after a vehicle remote control unit BOX is logged in, the server generates a corresponding SMS Key for the BOX;
s3, time calibration is carried out on the BOX of the vehicle remote control unit through the server, and after the time calibration is finished, the server respectively sends the generated SMS Key to the BOX and the smart phone;
s4, after the user triggers the requirement of the remote control vehicle, the mobile phone terminal firstly generates a remote control instruction according to the type of the remote control instruction, and encrypts the remote control instruction by using the received SMS Key;
s5, the encrypted remote control instruction is directly sent to the vehicle BOX in an SMS mode;
s6, after the vehicle remote control unit BOX receives the remote control instruction, corresponding decryption and instruction execution are carried out;
and S7, after the vehicle remote control unit BOX side completes the execution of the remote control instruction, encrypting the execution result and directly sending the execution result to the intelligent mobile phone in an SMS mode.
The server establishes a user database system, maintains BOX information under a vehicle account and intelligent mobile phone information for remote control of a user, and calculates an encryption key in the current period randomly through a set encryption algorithm after the vehicle BOX logs in; and in the effective period time, the secret key is respectively sent to the mobile phone of the user and the BOX.
At the mobile phone end, the user UI of the smart phone program is used for providing a remote operation instruction list which can be operated by a user; a specific storage position is designed in the smart phone program and is used for storing the corresponding key received in each period;
and designing a specific storage area in the mobile phone program, wherein the specific storage area is used for storing the SIM card information of the corresponding BOX unit in the bound remote control vehicle.
After a user initiates a corresponding remote control instruction, the mobile phone program calculates and generates a specific remote control instruction according to a corresponding remote control instruction list and a secret key, and sends the specific remote control instruction to a remote control BOX bound by the user through a mobile phone short message; the remote control unit BOX decrypts the received encrypted control instruction, converts the decrypted control instruction into a CAN signal and sends the CAN signal to the corresponding vehicle-mounted ECU for execution.
BOX software architecture: BOX software is developed based on existing software architecture schemes, comprising two large body parts, a Platform layer (Platform) and an application layer (APP), wherein:
platform layer (Platform): the system is mainly used for resource management and control of communication modules, management of communication channels (channels) such as CAN, GSM, LTE, receiving and transmitting of protocol data, monitoring of running processes of software modules, log output and other functions;
application layer (APP): the system is used for realizing the management of SMS short message receiving and sending service and carrying out encryption and decryption processing on the received data;
in order to facilitate the realization of the conversion processing of receiving mobile phone short messages and customizing control instructions by the remote control BOX, the scheme is provided with a corresponding smart phone program, and the mobile phone program mainly realizes the conversion of remote control demands of users into datamation control instructions; a background server is built and an encryption algorithm is set for calculating and distributing the encryption key;
the server establishes a user database system, maintains BOX information under a vehicle account and intelligent mobile phone information for remote control of a user, and calculates an encryption key in a current ignition period by a set encryption algorithm at random after the vehicle BOX logs in; in the effective period time, the secret key is respectively sent to the mobile phone of the user and the BOX; the server looks at the validity of the Key calculated in each login cycle and counts the time to erase the history data to ensure the Key uniqueness of the decryption calculation when the remote instruction is currently executed.
The intelligent mobile phone program user UI interface is used for providing a remote operation instruction list which can be operated by a user; a specific position is designed in the smart phone program and is used for storing a corresponding key received in each ignition period;
a specific storage area is designed in the mobile phone program for storing the SIM card information, such as MDN number, IMSI and ICCID information, of the corresponding BOX unit in the bound remote control vehicle.
After the user initiates the corresponding remote control instruction, the mobile phone program calculates and generates a specific remote control instruction according to the corresponding remote control instruction list and the secret key, and sends the specific remote control instruction to the remote control BOX bound by the user through the mobile phone short message.
Functional stability and validity promotion can be realized to this application scheme: the existing market remote control function issues a wake-up instruction again through a remote control program and a server; since there are many nodes in the transmission path of the control instruction, the success rate of the control instruction is affected by the stability of the network signal state already in the server. Under the condition of fully using the channel of the mobile phone short message, the success rate of remote control can be improved from 30% to 90% according to the test, and the effectiveness of the remote control function is effectively improved.
It is obvious that the specific implementation of the present invention is not limited by the above-mentioned modes, and that it is within the scope of protection of the present invention only to adopt various insubstantial modifications made by the method conception and technical scheme of the present invention.

Claims (10)

1. A vehicle remote control system based on mobile phone short messages is characterized in that: the remote vehicle control unit is connected with the server respectively and is used for acquiring a Key SMS Key generated by the server; after triggering the remote control vehicle requirement by a user, the mobile phone terminal generates a remote control instruction according to the type of the remote control instruction and encrypts the remote control instruction by using a received Key SMS Key; the mobile phone end sends the encrypted remote control instruction to the vehicle remote control unit in an SMS mode, and the vehicle remote control unit receives the remote control instruction and then performs corresponding decryption and instruction execution.
2. The mobile phone short message based vehicle remote control system as claimed in claim 1, wherein: the vehicle remote control unit comprises a control module MCU and an NAD module, wherein the control module MCU is respectively connected to a server and a mobile phone end through the NAD module; and the control module MCU controls the CAN converter to be connected to the vehicle-mounted CAN network.
3. The mobile phone short message based vehicle remote control system as claimed in claim 2, wherein: the NAD module is respectively connected to a signal antenna and an eSIM card module, and the signal antenna is used for receiving signals for sending SMS information; the eSIM card module is used for network registration and network access and information binding of user account numbers.
4. A vehicle remote control system based on mobile phone short messages according to any one of claims 1 to 3, wherein: the control module MCU is connected to the vehicle-mounted network through the CAN converter and is used for decoding and converting the CAN signals of the whole vehicle and the CAN signals of the control module, and the connection between the control module and the vehicle-mounted ECU is established.
5. A vehicle remote control system based on mobile phone short messages according to any one of claims 1 to 3, wherein: the control module MCU is connected with the external storage unit CMMC and is used for log storage or configuration file storage in system operation.
6. A vehicle remote control system based on mobile phone short messages according to any one of claims 1 to 3, wherein: the control system further comprises a voltage conversion and voltage stabilization control unit for supplying power to the control modules MCU, NAD module and EMMS.
7. A vehicle remote control method based on mobile phone short messages is characterized in that: the method comprises the following steps:
s1, after a vehicle enters an awake mode, a vehicle remote control unit BOX establishes connection with a server through a TLS protocol and logs in the server;
s2, after a vehicle remote control unit BOX is logged in, the server generates a corresponding SMS Key for the BOX;
s3, time calibration is carried out on the BOX of the vehicle remote control unit through the server, and after the time calibration is finished, the server respectively sends the generated SMS Key to the BOX and the smart phone;
s4, after the user triggers the requirement of the remote control vehicle, the mobile phone terminal firstly generates a remote control instruction according to the type of the remote control instruction, and encrypts the remote control instruction by using the received SMS Key;
s5, the encrypted remote control instruction is directly sent to the vehicle BOX in an SMS mode;
s6, after the vehicle remote control unit BOX receives the remote control instruction, corresponding decryption and instruction execution are carried out;
and S7, after the vehicle remote control unit BOX side completes the execution of the remote control instruction, encrypting the execution result and directly sending the execution result to the intelligent mobile phone in an SMS mode.
8. The vehicle remote control method based on mobile phone short messages as claimed in claim 7, wherein: the server establishes a user database system, maintains BOX information under a vehicle account and intelligent mobile phone information for remote control of a user, and calculates an encryption key in the current period randomly through a set encryption algorithm after the vehicle BOX logs in; and in the effective period time, the secret key is respectively sent to the mobile phone of the user and the BOX.
9. The vehicle remote control method based on mobile phone short messages as claimed in claim 7, wherein: at the mobile phone end, the user UI of the smart phone program is used for providing a remote operation instruction list which can be operated by a user; a specific storage position is designed in the smart phone program and is used for storing the corresponding key received in each period;
and designing a specific storage area in the mobile phone program, wherein the specific storage area is used for storing the SIM card information of the corresponding BOX unit in the bound remote control vehicle.
10. The vehicle remote control method based on mobile phone short messages as claimed in claim 7, wherein:
after a user initiates a corresponding remote control instruction, the mobile phone program calculates and generates a specific remote control instruction according to a corresponding remote control instruction list and a secret key, and sends the specific remote control instruction to a remote control BOX bound by the user through a mobile phone short message; the remote control unit BOX decrypts the received encrypted control instruction, converts the decrypted control instruction into a CAN signal and sends the CAN signal to the corresponding vehicle-mounted ECU for execution.
CN202211626379.8A 2022-12-16 2022-12-16 Vehicle remote control system and method based on mobile phone short message Pending CN116347368A (en)

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