CN106773968A - Vehicle-mounted intelligent end device based on V2X radio communications - Google Patents
Vehicle-mounted intelligent end device based on V2X radio communications Download PDFInfo
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- CN106773968A CN106773968A CN201611198532.6A CN201611198532A CN106773968A CN 106773968 A CN106773968 A CN 106773968A CN 201611198532 A CN201611198532 A CN 201611198532A CN 106773968 A CN106773968 A CN 106773968A
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- vehicle
- controller
- module
- end device
- intelligent end
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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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
-
- 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
- H04L67/50—Network services
- H04L67/52—Network services specially adapted for the location of the user terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
Abstract
The present invention provides a kind of vehicle-mounted intelligent end device based on V2X radio communications, being in communication with each other of car and car, car and thing, the real-time display and prompting of information can be realized, the application for driving the aspect such as safety, information inquiry and order, amusement and shopping can be provided the user.
Description
Technical field
The invention belongs to vehicle intelligent terminal field.It is more particularly related to a kind of based on V2X radio communications
Vehicle-mounted intelligent end device.
Background technology
With the development of society, automobile is increasingly weighed as a kind of important vehicles in daily life
Will, so that car ownership sustainable growth.But, with the increase of vehicle fleet size, transport development problem increasingly becomes restriction
The convenient bottleneck of people's trip, traffic congestion has become a serious social problems.Incident traffic accident is also
As the public traffic safety problem in the whole world.Then a difficult problem in face of our traffic safety is put to be how to reduce automobile
Bump against probability, reduce casualties.It is most the reason for car collision according to the investigation of National Highway Traffic safety management bureau
In the case of be the opaque of information between vehicle and vehicle.If can be by mutual motion state by wireless between vehicle
Communication mode informs other side, allows driver to both know about the situation of other side each other, just can largely reduce collision accident.
When user wants to drive out, can be communicated by mobile phone 4G, information is sent to vehicle, so that it is determined that vehicle
Position, facilitates user to the positioning of vehicle.After vehicle is outgoing, user household can position current car by sending 4G short messages
Motion state and geographical position.
In vehicle travel process, if front runs into emergency case or driver wants to record landscape on the way, can be with
This function is realized by installing drive recorder, but traditional drive recorder is used only for video capture, and function compares
It is single.
When vehicles while passing high speed, it is necessary to pass through high speed charging aperture, traditional manual toll collection needs vehicle queue to wait, takes
When it is laborious, then occur in that electronic charging.But traditional electronic charging device function is also tended to simply.
Vehicle navigation apparatus can be guided by way of map and voice or how remind driver according to predetermined road
Line is driven a vehicle, and is brought great convenience to driver, especially when driver is in foreign environment.If in guider
In can receive the speech polling input of driver, even if so that driver is under the situation without departing from car, also thinking driving
Parking lot residue parking stall, market and restaurant information around member's enquiring vehicle etc. are brought bigger convenient.
Mostly based on RFID, the performance and scalability of product are very limited, simply pin for the car networking product of application at present
Some traditional functions are improved --- enhanced product performance using embedded type CPU and expanded function, expanded by CAN
Exhibition interface is connected with extended function module respectively, and various gathered datas are entered by the good operating system of operational capability performance
Row treatment, eliminates the supporting optional equipment of the data actuation of traditional routine.And its wireless communication module can only be point-to-point
Connected mode, and most of service depends on the voice call between vehicle driver and crew and the seat personnel of service centre,
Complete lack of the concept of proper networking, so also there are many improvement in the car networking car-mounted terminal product of existing pass
Space.
The content of the invention
It is an object of the invention to solve at least the above, and provide the advantage that at least will be described later.
The present invention provides a kind of vehicle-mounted intelligent end device based on V2X radio communications, can realize car and car, car and thing
Be in communication with each other, the real-time display and prompting of information, can provide the user driving safety, information inquiry and order, amusement with
And shopping etc. aspect application.
The present invention provides a kind of vehicle-mounted intelligent end device based on V2X radio communications, and it includes：
Controller, it is ARM Cortex-A9 processor modules, and the ARM Cortex-A9 processor modules are using winged
The i.MX 6Quad processors that karr company releases are thought, with 40nm techniques, four core ARM Cortex-A9 frameworks, single core
Heart dominant frequency possesses 1MB L2Cache up to 1.2GHz, supports 1080P@60fps decodings and 1080P@30fps codings, while
Support that 1080P resolution ratio 3D HD videos, 3D accelerate function, can simultaneously manage the dual camera for 3D stereoscopic shootings, gather around
There is independent 2D and summit accelerating engine function.
Mounted automatic diagnosis information acquisition module, it is connected with OBD interface, and by CAN with
Controller communication connection, the mounted automatic diagnosis information acquisition module for collecting vehicle be downloaded from dynamic diagnostic message and by its
Send to controller；
GPS combined inertial nevigation modules, it passes through spi bus and is communicated to connect with controller, and the GPS combined inertial nevigations module is used for
The position of collection vehicle and movable information simultaneously send it to controller；
V2X communication modules, it passes through usb bus and is connected with the controller, and the V2X communication modules are used to receive it
Operation requests that his vehicle-mounted intelligent end device is sent simultaneously send it to controller, the operating result hair that controller is sent
Deliver to other vehicle-mounted intelligent end devices, or for receiving operation requests that controller sends and to send it to other vehicle-mounted
Intelligent end device, or receive the operating result of other vehicle-mounted intelligent end devices return and send it to controller.
Preferably, in the described vehicle-mounted intelligent end device based on V2X radio communications, the V2X communications mould
Block supports IEEE802.11p wireless communication protocols, and with 5.8GHz bandwidth, double antenna communication, data rate is 3~54Mbps,
Communication range supports USB2.0 interface protocols more than 1Km.
Preferably, the described vehicle-mounted intelligent end device based on V2X radio communications, also including 4G communication modules, its
With user mobile phone communication connection, the 4G communication modules are used to send the operation requests of user to controller, and by controller
The operating result of return is sent to user mobile phone.The 4G communication modules support that the whole network leads to, interior with two-way dormancy awakening function
Embedding ICP/IP protocol stack, supports multiple Socket and IP address.
Preferably, the described vehicle-mounted intelligent end device based on V2X radio communications, also including camera, it is used for
The video data transmitting is simultaneously delivered to controller by video data in front of collection vehicle, and the camera supports 2048 × 1536 dynamics
Image resolution ratio, with 24 RGBs, image transmission rate is 30 frames/second, and picture format is XGA/QXGA.
Preferably, the described vehicle-mounted intelligent end device based on V2X radio communications, also including ETC read modules, its
For reading ETC card informations and sending it to controller.
Preferably, the described vehicle-mounted intelligent end device based on V2X radio communications, the GPS combined inertial nevigations module
Including GPS module and inertial sensor, the GPS module can simultaneously receive the Big Dipper, GPS dual systems positioning, and positioning precision is 2m,
Data update rate is 20Hz, and the cold start-up time is 26s.The inertial sensor measuring circuit, can be unstable in satellite-signal
In the case of fixed, it is ensured that the vehicle-mounted intelligent end device has the positioning precision of stabilization.
Preferably, the described vehicle-mounted intelligent end device based on V2X radio communications, also includes：Voice input module,
Its voice command for being used to receive user simultaneously sends it to controller, and the voice input module supports two kinds of sounds of PWM and DAC
The frequency way of output, is internally integrated clock oscillator.
Preferably, the described vehicle-mounted intelligent end device based on V2X radio communications, also including LCD display, its use
In display navigation map, or show that other have the position of the vehicle of communication connection, the LCD display is that 5 cun of TFT bands are touched
The condenser type LCD of function, resolution ratio is 800 × 480, supports 5 touches.
Preferably, the described vehicle-mounted intelligent end device based on V2X radio communications, also including logical with the controller
The Flash modules and Sdram modules of connection are believed, wherein the Flash modules are the eMMC types with 8GB memory capacity
Flash storage.The Sdram modules are that frequency is 532MHz, and memory capacity is 64 DDR3 memories of 2GB.
Preferably, the described vehicle-mounted intelligent end device based on V2X radio communications, also including power supply, its be used for for
The processor, mounted automatic diagnosis information acquisition module, GPS combined inertial nevigations module, V2X communication modules, 4G communication modules, take the photograph
As head, ETC read modules, voice input module, LCD display, Flash modules and Sdram modules provide power supply.
It is preferred that the power module obtains+12V dc sources by the power input of vehicle OBD interfaces, then carry out
Direct current is changed, and+5V voltages ,+3.3V voltages are generated respectively.
It is preferred that the vehicle intelligent terminal can be with the vehicle or network for around supporting IEEE802.11p wireless communication protocols certainly
Dynamic networking, and information inquiry, communication, amusement and shopping can be realized by the wireless network.
It is preferred that vehicle intelligent terminal supports handwriting input and speech voice input function.
It is preferred that the V2X cordless communication networks coverage is more than 1 km.
It is preferred that installing this terminal installation by multiple vehicles, the high-speed radiocommunication networking by small range can be realized
Technology forms a complete secure wireless communication LAN in vehicle periphery, so as to mutual perception other side between vehicle
Motion state.
A kind of vehicle-mounted intelligent end device based on V2X of present invention design is a kind of vehicle intelligent terminal based on DSRC
Device.By the device, user can realize the functions such as positioning, communication, video capture, ETC charges and the navigation of vehicle, overcome
Traditional single mobile unit unitary function, problem that is expensive, installing and using inconvenience.In the range of certain space, lead to
The radio communication crossed between V2X, reaches the resource in the spatial dimension and interconnects, and not only solves between car and car
Information exchange so that reduce car accident generation probability, and cause information sharing has been reached between car and thing, so as to be
The resource information that user obtains vehicle periphery brings facility.
The present invention has advantages below：
1st, the free Wireless Network of high speed within 1 kilometer range can be realized, to reach car and car or car and thing
Between snap information exchange；
2nd, navigation feature can be realized, and LCD display can support that user is manually entered Query Information or positioning；
3rd, ETC functions can be realized, time of the user by high speed charging aperture is saved；
4th, with drive recorder function, user is facilitated with the wheelpath of videograph vehicle；
5 support 4G mobile communication, can be by cell-phone customer terminal and the positional information of GPS location functional inquiry vehicle；
6th, the device realizes self-powered using the automatic OBD interfaces of vehicle body, and power supply is convenient；
7th, phonetic entry, output function are supported, information inquiry is convenient；
8th, vehicle location the factor such as is not blocked and is influenceed by weather, building, and reliability is high.
Further advantage of the invention, target and feature embody part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Brief description of the drawings
The structure of the one embodiment for the vehicle-mounted intelligent end device based on V2X radio communications that Fig. 1 is provided for the present invention
Figure.
The software of the one embodiment for the vehicle-mounted intelligent end device based on V2X radio communications that Fig. 2 is provided for the present invention
Framework.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be appreciated that it is used herein such as " have ", "comprising" and " including " term do not allot one or many
The presence or addition of individual other elements or its combination.
Fig. 1 is a kind of vehicle-mounted intelligent end device system construction drawing based on V2X radio communications, and the device includes ARM
Cortex-A9 processor modules, camera module, SD card module, OBD interface messages module, GPS combined inertial nevigations module, V2X lead to
Letter module, 4G communication modules, LCD navigation modules, ETC card modules, Flash modules, Sdram modules, voice module and power supply
Module.A kind of software architectures of the vehicle-mounted intelligent end device based on V2X radio communications of Fig. 2,.The software architecture is divided into bottom and draws
Three layers of helical pitch sequence, operating system nucleus and application software：(1) bottom bootstrap mainly completes interruption masking, storehouse initialization
And operating system nucleus guiding etc. work.(2) operating system nucleus mainly completes writing and just for hardware adaptor driver
Beginningization, operating system uses Ubuntu12.04 versions；(2) application software is mainly completed：Automobile navigation, speech polling, vehicle are fixed
Position, the parsing of GPS integrated navigations data, ETC charges, video acquisition and storage, car status information collection and management, WAVE groups
Bag/parsing, packet enciphering/deciphering, real-time certification.
First, a kind of hardware system implementation method of the vehicle-mounted intelligent end device based on V2X radio communications
The i.MX 6Quad processors that ARM Cortex-A9 processor modules are released using Freescale company, have
40nm techniques, four core ARM Cortex-A9 frameworks, single core dominant frequency up to 1.2GHz, possesses 1MB L2 Cache, props up
1080P@60fps decodings and 1080P@30fps codings are held, while supporting 1080P resolution ratio 3D HD videos, 3D accelerates function,
The dual camera for 3D stereoscopic shootings can be simultaneously managed, possesses independent 2D and summit accelerating engine function.The ARM
Cortex-A9 processor modules as the vehicle-mounted intelligent end device nucleus module, respectively with camera module, ETC snap gauges
Block, SD card module, OBD interface messages module, V2X communication modules, GPS combined inertial nevigations module, 4G communication modules, LCD navigation moulds
Block, Flash modules, Sdram modules, voice module and power module are connected.
Camera module can be used for recording the situation of vehicle front in driving conditions, and video information is passed through into ARM
The coding of Cortex-A9 processor modules and compression, are then saved in SD card module.
GPS integrated navigations module uses the Big Dipper, GPS dual-mode satellite fix, and adds MEMS inertial navigation circuits with loose coupling side
Formula forms integrated navigation system unit.Satellite fix mainly provides initial state information and periodic positional information amendment.
MEMS inertial navigations circuit includes 3 axle accelerations and 3 axle gyro signals, in the vehicle-mounted intelligent end device running, all the time
It is in running order.The GPS integrated navigations module is used for the necessary state letter such as position, speed and the direction of collection vehicle
Breath, is then sent to ARM Cortex-A9 processor modules by serial communication mode.
OBD interface messages module utilizes CAN communication mode collection vehicle operation shape in itself by vehicle OBD interfaces
State information, and user can be uploaded to by communication.In addition, the OBD interface messages module is this vehicle intelligent end
End device provides DC12V power supplies.
V2X communication modules, with 5.8GHz bandwidth, support IEEE8.2.11p wireless protocol standards, are responsible for car and car, car
Radio communication and networking between thing, are realized using the MK5 wireless communication modules based on IEEE8.2.11p wireless communication protocols
The customized information of car status information and user is sent to other vehicles or network, vehicle can also simultaneously receive other vehicles
The information of user is fed back in status information or network.
LCD navigation modules touch screen using 5 cun of TFT RGBs, for digital map navigation, and can be set according to user,
The vehicle that will be in communication with each other is included in digital map navigation coordinate.And can support that user's hand-written information is input into, it is convenient to inquire about and the car
Carry the status information of other vehicles, surrounding market, parking lot and the traffic of intelligent end device networking.
Voice module can provide the user phonetic entry, output function, facilitate user pass through speech query information or
The vehicle-mounted intelligent end device carries out feedback of the information to user by voice.
4G modules are communicated using serial communication mode with ARM Cortex-A9 processor modules, and user is by sending
Short message mode, the positional information and status information of enquiring vehicle.
2nd, a kind of software system implementation method of the vehicle-mounted intelligent end device based on V2X radio communications
It is initial that bottom bootstrap mainly completes the clock configuration of ARM Cortex-A9 processors, interruption masking, storehouse
The work such as change, UART initialization and operating system nucleus guiding.After UART initialization is completed, the vehicle intelligent terminal dress
Putting can be communicated by UART communication interfaces with host computer.Completed by transplanting or changing U-boot in this application
The exploitation of bottom bootstrap.
Operating system nucleus mainly completes read-write task operating, the protocol stack of the peripheral bus such as CAN, SPI, USB, LVDS
Transplanting and the establishment and scheduling of task.The main TCP/IP network protocol stacks module including in (SuSE) Linux OS kernel with
And the WLAN Device Driver of USB interface, wherein realizing that IEEE802.11p agreements are advised by changing WLAN Device Driver
Fixed logic function.
Application software is mainly completed：Automobile navigation, speech polling, vehicle location, the parsing of GPS integrated navigations data, ETC are received
Take, it is video acquisition and storage, car status information collection and management, the bag/parsing of WAVE groups, packet enciphering/deciphering, real-time
Certification.
Software systems groundwork flow is：First, on the vehicle-mounted intelligent end device after electricity, completion system initialization
Work；Then ARM Cortex-A9 processor modules, camera module, SD card module, OBD interface messages module, GPS combinations
Inertial navigation module, V2X communication modules, 4G communication modules, LCD navigation modules, ETC card modules, Flash modules, Sdram modules, language
The modules such as sound module start normal work.GPS combined inertial nevigations module upgrades in time car according to data update rate set in advance
Position and attitude and movement state information；ARM Cortex-A9 processor modules are receiving the letter of GPS combined inertial nevigation modules
After breath, information is measured and is resolved.Then information be wirelessly sent to other nets for supporting V2X radio communications
Network online equipment is implemented to be displayed in navigation map by LCD.User can also receive other vehicles or network is online
The information of equipment.Navigation information that user can show according to LCD or by V2X wireless communication informations, by voice or
The mode of handwriting input inquires about the information of customer relationship when by high speed charging aperture, and the vehicle-mounted intelligent end device passes through nothing
Line communication is communicated with ETC, so as to save time of the user by high speed charging aperture.
Although embodiment of the present invention is disclosed as above, it is not restricted to listed in specification and implementation method
With, it can be applied to various suitable the field of the invention completely, for those skilled in the art, can be easily
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (10)
1. the vehicle-mounted intelligent end device of V2X radio communications is based on, it is characterised in that including：
Controller,
Mounted automatic diagnosis information acquisition module, it is connected with OBD interface, and by CAN with it is described
Controller is communicated to connect, and the mounted automatic diagnosis information acquisition module is downloaded from dynamic diagnostic message and is sent to for collecting vehicle
To controller；
GPS combined inertial nevigation modules, it passes through spi bus and is communicated to connect with controller, and the GPS combined inertial nevigations module is used to gather
The position of vehicle and movable information simultaneously send it to controller；
V2X communication modules, it passes through usb bus and is connected with the controller, and the V2X communication modules are used to receive others
Operation requests that vehicle-mounted intelligent end device is sent simultaneously send it to controller, by the operating result that controller sends send to
Other vehicle-mounted intelligent end devices, or for receiving operation requests that controller sends and sending it to other vehicle intelligents
Terminal installation, or receive the operating result of other vehicle-mounted intelligent end devices return and send it to controller.
2. the vehicle-mounted intelligent end device of V2X radio communications is based on as claimed in claim 1, it is characterised in that the V2X leads to
Letter module supports IEEE802.11p wireless communication protocols, with 5.8GHz bandwidth, double antenna communication, and data rate is 3~
54Mbps, communication range supports USB2.0 interface protocols more than 1Km.
3. the vehicle-mounted intelligent end device of V2X radio communications is based on as claimed in claim 2, it is characterised in that also including 4G
Communication module, it is communicated to connect with user mobile phone, and the 4G communication modules are used to send the operation requests of user to controller,
And send to user mobile phone the operating result that controller is returned.
4. the vehicle-mounted intelligent end device of V2X radio communications is based on as claimed in claim 3, it is characterised in that also including taking the photograph
Controller is delivered to as head, its video data being used in front of collection vehicle and by the video data transmitting, the camera is supported
2048 × 1536 dynamic image resolution ratio, with 24 RGBs, image transmission rate is 30 frames/second, and picture format is XGA/
QXGA。
5. the vehicle-mounted intelligent end device of V2X radio communications is based on as claimed in claim 4, it is characterised in that also including ETC
Read module, it is used to read ETC card informations and sends it to controller.
6. the vehicle-mounted intelligent end device of V2X radio communications is based on as claimed in claim 5, it is characterised in that the GPS groups
Closing inertial navigation module includes GPS module and inertial sensor, and the GPS module can simultaneously receive the Big Dipper, GPS dual systems positioning, fixed
Position precision is 2m, and data update rate is 20Hz, and the cold start-up time is 26s.
7. the vehicle-mounted intelligent end device of V2X radio communications is based on as claimed in claim 6, it is characterised in that also included：Language
Sound input module, its voice command for being used to receive user simultaneously sends it to controller, and the voice input module supports PWM
With two kinds of audio output modes of DAC, clock oscillator is internally integrated.
8. the vehicle-mounted intelligent end device of V2X radio communications is based on as claimed in claim 7, it is characterised in that also including LCD
Display screen, it is used to show navigation map, or shows that other have the position of the vehicle of communication connection, and the LCD display is 5
Condenser type LCDs of the very little TFT with touch function, resolution ratio is 800 × 480, supports 5 touches.
9. the vehicle-mounted intelligent end device based on V2X radio communications as claimed in claim 8, it is characterised in that also including with
The Flash modules and Sdram modules of the controller communication connection, wherein,
The Flash modules are the flash storage of the eMMC types with 8GB memory capacity；
The Sdram modules are that frequency is 532MHz, and memory capacity is 64 DDR3 memories of 2GB.
10. the vehicle-mounted intelligent end device of V2X radio communications is based on as claimed in claim 9, it is characterised in that also including electricity
Source, it is used to be the processor, mounted automatic diagnosis information acquisition module, GPS combined inertial nevigations module, V2X communication modules, 4G
Communication module, camera, ETC read modules, voice input module, LCD display, Flash modules and Sdram modules provide electricity
Source.
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| CN111311941A (en) * | 2018-12-11 | 2020-06-19 | 上海博泰悦臻电子设备制造有限公司 | Event pushing method and system based on V2X technology, V2X terminal and V2X server |
| CN109920246A (en) * | 2019-02-22 | 2019-06-21 | 重庆邮电大学 | It is a kind of that local paths planning method is cooperateed with binocular vision based on V2X communication |
| CN109920246B (en) * | 2019-02-22 | 2022-02-11 | 重庆邮电大学 | Collaborative local path planning method based on V2X communication and binocular vision |
| CN111030719A (en) * | 2019-11-22 | 2020-04-17 | 华为技术有限公司 | Vehicle-mounted device and data processing method |
| CN111030719B (en) * | 2019-11-22 | 2021-10-22 | 华为技术有限公司 | Vehicle-mounted device and data processing method |
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