Disclosure of utility model
The utility model aims to overcome the defects of the prior art, and provides integrated vehicle-mounted wireless communication control equipment and an automobile, wherein part of functions of vehicle control are integrated in TBOX, so that the defects of single function and low integration of the vehicle-mounted TBOX are overcome.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the integrated vehicle-mounted wireless communication control equipment comprises a microprocessor MPU, a microcontroller MCU and a power management system, wherein the output end of the power management system is respectively connected to the power supply ends of the microprocessor MPU and the microcontroller MCU; the microprocessor MPU is in communication connection with the microcontroller MCU; the microprocessor is configured to process remote communication control tasks, and the microcontroller MCU is configured to implement in-vehicle information interaction and in-vehicle control.
The device also comprises a communication module, and the microprocessor MPU receives and outputs vehicle interaction data through the communication module.
The communication module comprises any one or combination of a communication antenna, a SIM card module, a WIFI module and an Ethernet module.
The device also comprises a GPS antenna, wherein the GPS antenna is connected with the microprocessor MPU and is used for sending the collected position signals to the microprocessor MPU.
The device also comprises an audio module, wherein the input end of the audio module is used for being connected with a vehicle-mounted audio acquisition module, and the output end of the audio module is connected to the microprocessor MPU.
The device also comprises a relay, wherein the output end of the microcontroller MCU is connected to the control end of the relay, and a contact switch of the relay is used for realizing control of the vehicle.
The relay comprises a door and window relay, a car window relay and a rearview mirror relay.
The device also comprises a LIN transceiver, a CAN transceiver and a sensor interface, wherein the MCU is respectively connected to a LIN network, a CAN network and a vehicle-mounted sensor system through the LIN transceiver, the CAN transceiver and the sensor interface and is used for realizing interaction of information in a vehicle.
The device further comprises a safety chip 1 and a safety chip 2, wherein the safety chip 1 is used for being connected to the microprocessor MPU, and the safety chip 2 is used for being connected to the microcontroller MCU; the safety chip 1 and the safety chip 2 are used for encrypting and decrypting communication interaction of the microprocessor MPU and the microcontroller MCU.
An automobile comprising the integrated vehicle-mounted wireless communication control device.
The utility model has the advantages that: the control function of the vehicle is integrated in the TBOX of the vehicle-mounted wireless communication equipment, so that the function of the TBOX is expanded, the integration degree is improved, the use of a vehicle controller is reduced, the cost resources such as wire harnesses and interfaces are saved, the integration degree of the vehicle is improved, the system architecture is stable and reliable, the requirements of communication interaction and control are met, and the remote interaction and control of the vehicle are supported; when the remote control is performed, the control function can be realized without restarting or waking up or interacting with other controllers, and the response speed is improved.
Detailed Description
The following detailed description of the invention refers to the accompanying drawings, which illustrate preferred embodiments of the invention in further detail.
The main purpose of this embodiment is to redesign the vehicle-mounted communication device, namely TBOX, by integrating part or all of the functions of the original vehicle body controller into the TBOX, thereby saving one controller BCM, achieving the purpose of integration, and simultaneously being more rapid in the aspects of remote control response and the like after being integrated together, and saving the costs of wiring harnesses, interfaces and the like. The specific scheme is as follows:
As shown in fig. 1, the integrated vehicle-mounted wireless communication control device comprises a microprocessor MPU, a microcontroller MCU, a power management system and a function expansion module;
The output end of the power management system is respectively connected to the power supply ends of the microprocessor MPU and the microcontroller MCU, and is used for respectively supplying power to the MPU and the MCU, and the power management system comprises a DCDC, a voltage stabilizing chip, an LDO chip and the like, so that the voltage of the vehicle-mounted storage battery is converted into power supply voltage suitable for the MCU and the MPU to supply power for the MPU and the MCU.
The microprocessor MPU is in communication connection with the microcontroller MCU and is used for realizing information interaction between the microprocessor MPU and the microcontroller MCU, wherein the information interaction comprises transmission of control signals, uploading, receiving, sending and the like, and the microprocessor MPU and the microcontroller MCU can be connected through various communication modes or interfaces;
In the application, the microprocessor MPU is configured to process remote communication control tasks, and the microcontroller MCU is configured to realize in-vehicle information interaction and in-vehicle control. The MPU and the MCU are respectively connected to the function expansion modules so as to realize the respective configuration functions, and the function expansion modules are developed and introduced below:
As shown in fig. 1, the function expanding module includes one or more of communication module types such as a communication antenna, a SIM card module, a WI F I module, an ethernet module, and the like, and the microprocessor MPU receives and outputs vehicle interaction data through the communication antenna, the SIM card module, the WI F I module, the ethernet module, and the like. For example, the WI F I antenna, the communication antenna and the like are used for realizing remote interaction and control functions, and communication with the mobile phone app and the like can be established; the Ethernet module can establish connection with Ethernet equipment in the vehicle for realizing information transmission, interaction and the like. The specific functions and functions can be developed according to the requirements of a host factory, and the hardware provided by the application supports various remote expansion functions.
The function expanding module further comprises a GPS antenna and a CODEC audio module, wherein the GPS antenna is connected with the microprocessor MPU and used for sending the collected position signals to the microprocessor MPU. The input end of the audio module is used for being connected with the vehicle-mounted audio acquisition module, and the output end of the audio module is connected to the microprocessor MPU. The GPS antenna is used for expanding the positioning function of the TBOX wireless communication equipment, can provide positioning data for the vehicle, can be expanded into a vehicle searching function and the like, the CODEC audio module can expand the voice control function of the vehicle, and as long as the vehicle supports voice acquisition, the voice data can be sent into the MPU through the CODEC audio module to be processed, and then corresponding control signals are forwarded to the MCU by the MPU to be executed and the like.
The function expanding module also comprises a relay, a LIN transceiver, a CAN transceiver, a sensor interface, a safety chip 1, a safety chip 2, driving circuits of some motors and the like;
The relay comprises a control unit of a vehicle such as a door window relay, a rearview mirror relay and the like, and the MCU CAN control the opening and closing of the relay based on opening and closing signals sent by the MPU or other modes of the vehicle such as CAN and the like, so that functions of folding control of the window, the door window, the rearview mirror and the like are realized. The output end of the microcontroller MCU is connected to the control end of the relay, and the contact switch of the relay is used for realizing the control of the vehicle.
The system comprises an L IN transceiver, a CAN transceiver, a sensor interface and other modules, wherein the L IN transceiver, the CAN transceiver, the sensor interface and other modules are used for expanding the communication type of a vehicle and realizing the interaction of data IN the vehicle, and the microcontroller MCU is respectively connected to LIN network equipment, CAN network equipment and a vehicle-mounted sensor system through the LI N transceiver, the CAN transceiver and the sensor interface and is used for realizing the interaction of information IN the vehicle. The LIN network device and the CAN network device are devices with CAN or LI N in the vehicle respectively, and CAN also establish connection directly through a CAN network bus; meanwhile, the sensor system is various sensors in the vehicle and is used for acquiring real-time data of the vehicle, and the real-time data CAN be processed by the MCU and then forwarded to the MPU for remote data monitoring or uploaded to the instrument for expansion of monitoring functions through other communication such as CAN.
The application is provided with two safety chips which are vehicle-standard encryption chips and mainly ensure the safe and secret transmission and interaction of the data of the vehicle; the safety chip 1 is used for being connected to the microprocessor MPU, and the safety chip 2 is used for being connected to the microcontroller MCU; the safety chip 1 and the safety chip 2 are used for encrypting and decrypting communication interaction of the microprocessor MPU and the microcontroller MCU, and the communication interaction is carried out between the microprocessor MPU and the microcontroller MCU through encryption information, so that safe and reliable data interaction of a vehicle is ensured.
In this embodiment, there is also provided an automobile including the integrated on-vehicle wireless communication control apparatus of the above embodiment.
By adopting the vehicle-mounted wireless communication control equipment, the expansion of various remote functions of a vehicle CAN be supported, various antennas, sensor interfaces, CAN, LIN and the like are reserved, and a user CAN expand and use the controller equipment according to actual needs. The functions of remote monitoring, remote control, data transmission, data forwarding, digital keys, WIFI hot spots, driving behavior analysis, high-precision positioning, voice communication, safety data and the like of the vehicle can be realized through the vehicle loading communication network. The vehicle can communicate with the remote server in real time, the vehicle, the glass, the windshield wiper and the lamplight can be remotely controlled through the same controller, and the states of various electrical systems of the vehicle can be remotely monitored.
1. System architecture
● The controller consists of hardware such as a communication module, an MPU, a relay, a WIFI module, a combined antenna, an audio chip, a power supply controller, a LIN chip, a CAN chip, a motor controller, a safety chip and the like.
● The controller is powered by a vehicle power supply, and provides stable voltage for the chip through the step-down chip and the DC-DC.
● The internal algorithm of the controller is processed by the MPU, a relay is hung outside the chip end to drive a motor, and a sensor signal is received. The motor and the signal are interacted through the LIN line to realize communication.
● The communication module of the controller interacts with the MPU through a communication protocol, and the main function of the communication module is connected with an external network, so that data flow is provided for a vehicle-mounted system to provide better intelligent experience for a user, a high-precision positioning chip is arranged inside the communication module, and the communication module is combined with an antenna, so that positioning accuracy is realized, and an auxiliary vehicle has more reliable information in an ADAS system. Interconnected by a base station. And transmitting the data to an enterprise platform and a national platform. And the functions of data transmission, data monitoring, remote control and the like are realized.
2. By adopting the hardware structure of the embodiment, functions which can be expanded through each hardware module include:
● 5G communication module
The communication module adopts full-network communication to comprise 2G,3G,4G and 5G full-frequency-band communication. The module and the external base station realize internet surfing, and an APN port is built in the module to realize the external networking function. The internal inclusion of various communication interfaces can realize data communication with controllers such as an MCU and the like, and can internally process calculation of real-time road conditions in vehicle running by partial data algorithm, and safety data is provided for vehicles through high-precision navigation real-time positioning to provide accurate positioning for drivers. The remote control sends an instruction to the module through the APP, and the vehicle T-BOX+BCM controller is remotely awakened. The communication module and the MCU perform data exchange to drive the relay so as to realize functions such as remote control.
MCU module
The MCU is core hardware of the controller, a large amount of judgment logic codes are stored in the MCU, the data forwarding judgment signal priority is carried out on multiple paths of CAN through the whole vehicle CAN network management (a plurality of CAN) in real time, the control program realizes basic data management bottom logic, log management records the execution process of the whole controller, and the OTA function is a technology for remotely managing SIM card data and applications through an air interface of mobile communication. The application of OTA technology allows mobile communications to provide not only voice and data services, but also new traffic downloads. Thus, the application and content service providers can be free from the limitation of the platform, and more personalized services which meet the demands of users, such as information ordering, interactive entertainment, location services, banking transactions and the like, can be continuously developed. Through the OTA over-the-air downloading technology, the mobile phone user can download various service menus provided by the network into the mobile phone by using an OTA mechanism according to personal preference as long as simple operation is performed, and can customize specific services according to own wish.
CAN conversion module
The CAN transceiver exchanges multiple CAN signals, and the signals are converted into the CAN transceiver through the power CAN, and the CAN transceiver is sent into the MCU, mirrored and then output onto the vehicle body CAN to complete data transmission.
● CODEC module
The CODEC module is the basis of voice communication, the microphone and the loudspeaker driving equipment are arranged in the MCU module, the communication module SIM card provides a whole-vehicle communication signal to provide the communication basis for the CODEC. The E-CALL function is realized mainly through the hardware module, and the hardware module can also realize voice wake-up so as to control the vehicle body controller to lift the vehicle window, and the lamplight is automatically controlled and the requirements of passengers in different directions can be monitored.
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.