CN108839632A - Vehicle, vehicle device equipment, car accident prior-warning device and method - Google Patents
Vehicle, vehicle device equipment, car accident prior-warning device and method Download PDFInfo
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- CN108839632A CN108839632A CN201810568279.1A CN201810568279A CN108839632A CN 108839632 A CN108839632 A CN 108839632A CN 201810568279 A CN201810568279 A CN 201810568279A CN 108839632 A CN108839632 A CN 108839632A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
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- Radar, Positioning & Navigation (AREA)
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Abstract
The application provides vehicle, vehicle device equipment, the car accident prior-warning device based on relative velocity and method, including monitoring device and processor, and the monitoring device is used to be set on vehicle and monitor the target object of rear of vehicle；The processor is connected with the monitoring device, the processor is when determining vehicle and being in forward traveling, start the target object of monitoring device monitoring rear of vehicle, calculate the relative velocity between vehicle itself and the target object, and when the target object is approached to be greater than the relative velocity of preset threshold, accident early warning signal is issued.The application can judge automatically whether need to carry out car accident early warning, then if monitoring rear of vehicle there are target object and target object approaches itself, then can automated intelligent it issue warning signal, simultaneously, the application can just starting monitors when determining forward, the energy waste caused by blindly monitoring is avoided, guarantees that working performance is in optimum state.
Description
Technical field
This application involves vehicle technology fields, and in particular to a kind of vehicle device equipment, the vehicle device equipment are based on relative velocity
Car accident method for early warning, further relate to a kind of car accident prior-warning device based on relative velocity, and apply the vehicle
The vehicle of accident warning device.
Background technique
In recent years, China's transportation industry flourishes, resident's car ownership substantial increase, and the following road is handed over
It corresponds and inscribes frequent generation, the traffic accidents such as rear-end impact, the rollover of vehicle increasingly cause the most attention of government and society,
Vehicle driving safety becomes transport science and techonologies field focus of attention.
Meanwhile the high speed development of wireless data communication, mobile calculation technique, so that network mobile terminal is extended to vehicle
On carrying platform.Based on advanced wireless communication technique, car networking technology, between vehicle, can between vehicle and traffic control center
To realize efficient data transmission, information issuing function.Vehicle networked real time monitoring measure, Ke Yiwei may be implemented in the prior art
It acquires vehicle geographic information data abundant and technical support is provided.Based on wireless communication technique, vehicle and net background server
Wireless data transmission network is set up, enables and is integrated with the car-mounted terminal of mobile communication equipment by wireless network to after network
Platform server passes the information of oneself state and ambient enviroment back, and by traffic control center in the network platform to multiple terminals,
The data information of diversification carries out processing fusion, modeling analysis and calculating, shared and safety publication, thus using information as guiding
Means guidance vehicle is efficient in road network, is safely operated.
Danger early warning technology is one of the key technology of vehicle active safety, and existing vehicle collision avoidance early warning system,
The vehicles active safety early warning systems such as Lane Departure Warning System, dangerous blind spot detection system mostly use video image analysis technology
Or infrared detection technology perceives short range Nei Cheche, bus or train route precarious position, to realize the autonomous danger early warning of vehicle and peace
Full control function；Once there are the environmental aspects such as wind and snow thunderstorm weather, large obstacle, intensive mixed traffic flow to aforementioned
The interference of detection technique, vehicle just can not know reliable dangerous information.On the other hand, if vehicle-mounted danger early warning system lacks
With the interaction of the network information, vehicle can not carry out real-time Data Transmission with distal end traffic control center, and danger early warning function cannot
Organically combined with the functions such as remote data communication, vehicle location and navigation, vehicle become as information island and can not sensed in advance
Dangerous information and its geographical location information present in a wide range of running region, this necessarily reduces vehicle-mounted autonomous danger early warning function
The reliability of energy, while also reducing vehicle active safety control ability.
To sum up, China vehicle population is very huge, highway, overhead reason, urban road, township
Traffic density is increasing considerably on the various motor-driven vehicle going roads such as village's road, and has legal driver's quantity of driving license also day
See and increases；Vehicle rear-end collision accident also occurs again and again all the time daily, and rear-end collision threatens passenger in driver and vehicle
Life security is the traffic behavior for being very difficult to prevention.
Insufficient for the various aspects of the prior art, present inventor proposes a kind of vehicle, vehicle device by further investigation
Equipment, the car accident prior-warning device based on relative velocity and method.
Summary of the invention
The purpose of the application is, provides a kind of vehicle, vehicle device equipment, the car accident prior-warning device based on relative velocity
And method, it can judge automatically and whether need to carry out car accident early warning, then if monitoring that there are targets pair for rear of vehicle
As and target object approach itself, then can issue warning signal to automated intelligent, meanwhile, the application can be when determining forward
Just starting monitoring avoids the energy waste caused by blindly monitoring, and guarantees that working performance is in optimum state.
In order to solve the above technical problems, the application provides a kind of car accident prior-warning device based on relative velocity, as
One of embodiment, the car accident prior-warning device include：
Monitoring device, for being set on vehicle and monitoring the target object of rear of vehicle；
Processor is connected with the monitoring device, for judging whether vehicle is in forward traveling, is determining vehicle
When in forward traveling, the processor whether there is target object for starting monitoring device monitoring rear of vehicle, and
It is monitoring to calculate the relative velocity between vehicle itself and the target object, and in the target there are when target object
When object is approached to be greater than the relative velocity of preset threshold, accident early warning signal is issued.
As one of embodiment, the monitoring device includes：
Velocity radar, for detecting the target velocity of rear of vehicle target object；
The processor, is specifically used for：
The travel speed of the target velocity and combination vehicle itself that are detected according to the velocity radar, is calculated
The relative velocity.
As one of embodiment：
The monitoring device further includes：
Range radar is correspondingly arranged with the velocity radar, for detect rear of vehicle target object and vehicle itself it
Between real-time range；
The processor, accident will be occurred by being also used to be calculated according to the relative velocity and the real-time range
Predicted time.
As one of embodiment, the processor is also used to judge whether the predicted time is gradually close and answers
The anxious reaction time, and when the predicted time approaches the emergency reaction time, issue accident emergency alarm.
As one of embodiment, the processor is the processor of vehicle device equipment, or is and the vehicle device equipment
The processor for the Cloud Server being connected.
As one of embodiment, the connection type of the vehicle device equipment and the Cloud Server includes 3G communication network
Network, 4G communication network, 5G communication network and WIFI network.
In order to solve the above technical problems, the application also provides a kind of car accident method for early warning based on relative velocity, make
For one of embodiment, the car accident method for early warning based on relative velocity includes step：
Judge whether vehicle is in forward traveling；
When determining vehicle and being in forward traveling, starting monitoring device monitoring rear of vehicle whether there is target object；
It is monitoring to calculate the relative velocity between vehicle itself and the target object there are when target object；
When the target object is approached to be greater than the relative velocity of preset threshold, accident early warning signal is issued.
As one of embodiment, the step for calculating the relative velocity between vehicle itself and the target object
Suddenly, it specifically includes：
The target velocity of rear of vehicle target object is detected by velocity radar；
The travel speed of the target velocity and combination vehicle itself that are detected according to the velocity radar, is calculated
The relative velocity.
As one of embodiment, the step for calculating the relative velocity between vehicle itself and the target object
Suddenly, further include：
The real-time range between rear of vehicle target object and vehicle itself is detected by range radar；
The predicted time that accident will occur is calculated according to the relative velocity and the real-time range；
Judge the predicted time whether gradually close to the emergency reaction time；
When the predicted time approaches the emergency reaction time, accident emergency alarm is issued.
In order to solve the above technical problems, the application also provides a kind of vehicle device equipment, it is described as one of embodiment
Vehicle device equipment includes processor, and the processor is any above-mentioned based on relative velocity to realize for executing program data
The step of car accident method for early warning.
In order to solve the above technical problems, the application also provides a kind of vehicle, and as one of embodiment, the vehicle
Configured with any above-mentioned car accident prior-warning device based on relative velocity.
The application vehicle, vehicle device equipment, the car accident prior-warning device based on relative velocity and method, the car accident
Prior-warning device includes monitoring device and processor, and the monitoring device is used to be set on vehicle and monitor the mesh of rear of vehicle
Mark object；The processor is connected with the monitoring device, for judging whether vehicle is in forward traveling, is determining vehicle
When being in forward traveling, the processor for starting monitoring device monitoring rear of vehicle with the presence or absence of target object,
And it is monitoring to calculate the relative velocity between vehicle itself and the target object, and in the mesh there are when target object
When mark object is approached to be greater than the relative velocity of preset threshold, accident early warning signal is issued.The application can judge automatically whether
It needs to carry out car accident early warning, then if monitoring rear of vehicle there are target object and target object approaches itself,
It can issue warning signal to automated intelligent, meanwhile, the application can just starting monitors when determining forward, avoids blindly monitoring
Caused energy waste guarantees that working performance is in optimum state；Rear-end collision etc. can be effectively prevented from using the application,
Ensure the life security of passenger in driver and vehicle.
Above description is only the general introduction of technical scheme, in order to better understand the technological means of the application,
And it can be implemented in accordance with the contents of the specification, and in order to allow the above and other objects, features and advantages of the application can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of car accident prior-warning device one embodiment of the application based on relative velocity.
Fig. 2 is a wherein embodiment operation schematic diagram for the car accident prior-warning device based on relative velocity shown in Fig. 1.
Fig. 3 is the flow diagram of car accident method for early warning one embodiment of the application based on relative velocity.
Fig. 4 is the structural schematic diagram of one embodiment of the application vehicle device equipment.
Specific embodiment
Further to illustrate that the application is the technical means and efficacy reaching predetermined application purpose and being taken, below in conjunction with
Attached drawing and preferred embodiment, to the application, detailed description are as follows.
By the explanation of specific embodiment, when can be to reach the technological means and effect that predetermined purpose is taken to the application
Fruit be able to more deeply and it is specific understand, however institute's accompanying drawings are only to provide reference and description is used, and are not used to this Shen
It please limit.
Referring to Fig. 1, the structure that Fig. 1 is car accident prior-warning device one embodiment of the application based on relative velocity is shown
It is intended to.
In the present embodiment, the car accident prior-warning device includes but is not limited to monitoring device 11 and processor 12.
It should be noted that the monitoring device 11 is used to be set on vehicle and monitor the target pair of rear of vehicle
As.Wherein, the monitoring device 11 can be set in the top of vehicle, the tailstock or vehicle body two sides.
Processor 12 described in present embodiment is connected with the monitoring device 11, for judging whether vehicle is in forward
State, when determining vehicle and being in forward traveling, after the processor 12 monitors vehicle for starting the monitoring device 11
Side whether there is target object, and monitor to calculate between vehicle itself and the target object there are when target object
Relative velocity, and when the target object is approached with being greater than the relative velocity of preset threshold, issue accident early warning signal.
It is noted that the accident early warning signal can for sound early warning, video early warning or its combination, certainly,
It can also be sent to by car networking on opponent vehicle and carry out early warning.
In a specific embodiment, the monitoring device 11 may include velocity radar RV, and the velocity radar RV is used
In the target velocity of detection rear of vehicle target object；Correspondingly, the processor 12 is specifically used for according to the velocity radar
The travel speed of the target velocity and combination vehicle itself that RV is detected, is calculated the relative velocity.
In the present embodiment, if relative velocity is greater than zero, show that the distance between vehicle-to-target object can be by
Decrescence small, the two can be more and more closer, and if relative velocity is larger, show that the time to collide is faster, therefore, this embodiment party
Formula can set the preset threshold of relative velocity as 5 kilometers per hour, 10 kilometers per hour or 20 kilometers per hour etc..
In a preferred embodiment, as shown in Fig. 2, Fig. 2 is the car accident early warning dress shown in Fig. 1 based on relative velocity
The wherein embodiment operation schematic diagram set.
Monitoring device 11 described in present embodiment can also include range radar RI, and the range radar RI tests the speed with described
Radar RV is correspondingly arranged, for detecting the real-time range between rear of vehicle target object and vehicle itself；The processor 12
It is also used to that the predicted time that accident will occur is calculated according to the relative velocity and the real-time range.
It is worth noting that, processor 12 described in present embodiment is also used to judge whether the predicted time gradually approaches
The emergency reaction time, and when the predicted time approaches the emergency reaction time, issue accident emergency alarm.
For example, the emergency reaction time of people is generally 0.3 second or so, then, if will be after specified alarm signal
Make correct response, generally require 2 seconds total times, if so present embodiment can set predicted time approach 2 seconds with
It is interior, then accident emergency alarm should be issued, immediately to improve security level.
It should be noted that processor 12 described in present embodiment can be vehicle device equipment processor 12, or for institute
State the processor 12 for the Cloud Server that vehicle device equipment is connected.
Specifically, the connection type of the vehicle device equipment and the Cloud Server may include 3G communication network, 4G logical
Communication network, 5G communication network and WIFI network.
In specific embodiment shown in Fig. 2, the application can install range radar RI and survey in the tailstock position of vehicle
Fast radar RV, and range radar RI and velocity radar RV is accessed in vehicle T-Box/ vehicle device equipment, with algorithm set in advance
Whether real-time judge knocks into the back behavior, realizes rear-end collision warning function.
Wherein, Car0 indicates target object (can be rear car or other barriers, present embodiment is by taking rear car as an example),
Car1 indicates that this vehicle, RI indicate that range radar, Rv indicate that velocity radar, L indicate the real-time range of Car0 to this vehicle Car1；V table
Show the relative velocity of Car0 to this vehicle Car1, that is, Rv is using Car1 as object of reference, vector side when detecting the speed of Car0
To for right ahead.
Defining V1 simultaneously is this vehicle Car1 actual speed, defines Lc as rear car Car0 to this vehicle Car1 in the warning algorithm that knocks into the back
Constant threshold values (for calculating total time required for emergency reaction time and correct response, such as total time=Lc/ relative velocity),
Present embodiment Lc can be configured by driver through T-Box/ vehicle device equipment.
It is understandable to be：
1. if V>0 indicates that rear car Car0 actual speed is more than this vehicle Car1 speed, with the advance rear car Car0 of time
This vehicle of approaching Car1, L will be become smaller；If V=0, indicate rear car Car0 actual speed it is consistent with this vehicle Car1 speed, with when
Between elapse, L is constant；If V<0, indicate that rear car Car0 actual speed is less than this vehicle Car1 speed, as time goes by, L will become
Greatly.
2. in vehicle Car1 driving process, finding V>0, this means that L as time goes by<=Lc, after this means that
Vehicle increasingly this vehicle of approaching Car1, Ben Cheruo do not take acceleration or lane change etc. to operate, and T-Box/ vehicle device equipment judges rear car
Car0 will knock into the back this vehicle Car1.
3. if issuing early warning of knocking into the back immediately T-Box/ vehicle device equipment will judge that rear car Car0 will knock into the back this vehicle Car1, penetrate
The sound equipment of T-Box/ vehicle device equipment, which makes a sound, reminds driver that will be knocked into the back, and issues through the screen of T-Box/ vehicle device equipment
Video information reminds driver that will be knocked into the back.
It should be noted that should be kept for 100 meters or more with same lane rear car when speed is more than 100 kilometers per hour
Distance can suitably shorten, but minimum range must not be less than when speed is lower than 100 kilometers per hour with same lane rear car distance
50 meters.Therefore present embodiment can set Lc to 50~100 meters.Ruo Benche monitoring does not have barrier or rear vehicle, L below
For infinity, V is infinitesimal, to ensure that algorithm operates normally.
The application can judge automatically whether need to carry out car accident early warning, then if monitoring that rear of vehicle exists
Target object and target object approaches itself, then can issue warning signal to automated intelligent, meanwhile, the application can determine
Just starting monitoring when moving ahead, avoids the energy waste caused by blindly monitoring, and guarantees that working performance is in optimum state；Using this
Application can be effectively prevented from rear-end collision etc., ensure the life security of passenger in driver and vehicle.
Referring to Fig. 3, the process that Fig. 3 is car accident method for early warning one embodiment of the application based on relative velocity is shown
It is intended to.
It is set it should be noted that present embodiment can be applied to vehicle device based on the car accident method for early warning of relative velocity
In standby, also it can be applied in the mobile phone being connect with vehicle device equipment, tablet computer, navigator, wearable device and Cloud Server.
Wherein, specific connection type can be using 3G communication network, 4G communication network, 5G communication network and WIFI network etc..
As one of embodiment, the car accident method for early warning based on relative velocity includes but is not limited to such as
Under several steps.
Step S301, judges whether vehicle is in forward traveling；
Step S302, when determining vehicle and being in forward traveling, starting monitoring device monitoring rear of vehicle whether there is
Target object；
Step S303 is monitoring to calculate opposite between vehicle itself and the target object there are when target object
Speed；
Step S304 issues accident early warning letter when the target object is approached to be greater than the relative velocity of preset threshold
Number.
It should be noted that calculating the relative velocity between vehicle itself and the target object described in present embodiment
Step can specifically include：The target velocity of rear of vehicle target object is detected by velocity radar；According to the velocity radar
The travel speed of the target velocity and combination vehicle itself that detect, is calculated the relative velocity.
Furthermore, the step of the relative velocity between calculating vehicle itself and the target object described in present embodiment
Suddenly, can also include：The real-time range between rear of vehicle target object and vehicle itself is detected by range radar；According to institute
It states relative velocity and the predicted time that accident will occur is calculated in the real-time range；Judge the predicted time whether by
It walks close to the emergency reaction time；When the predicted time approaches the emergency reaction time, accident emergency alarm is issued.
Please continue to refer to Fig. 2, in specific embodiment shown in Fig. 2, the application can be installed in the tailstock position of vehicle
Range radar RI and velocity radar RV, and by range radar RI and velocity radar RV access vehicle T-Box/ vehicle device equipment, it uses
Whether algorithm real-time judge set in advance knocks into the back behavior, realizes rear-end collision warning function.
Wherein, Car0 indicates that rear car or other barriers, Car1 indicate that this vehicle, RI indicate range radar, and Rv expression is tested the speed
Radar, L indicate the real-time range of Car0 to this vehicle Car1；V indicates that the relative velocity of Car0 to this vehicle Car1, that is, Rv are being visited
It is using Car1 as object of reference when surveying the speed of Car0, direction vector is right ahead.
Defining V1 simultaneously is this vehicle Car1 actual speed, defines Lc as rear car Car0 to this vehicle Car1 in the warning algorithm that knocks into the back
Constant threshold values can be configured by driver through T-Box/ vehicle device equipment.
It is understandable to be：
1. if V>0 indicates that rear car Car0 actual speed is more than this vehicle Car1 speed, with the advance rear car Car0 of time
This vehicle of approaching Car1, L will be become smaller；If V=0, indicate rear car Car0 actual speed it is consistent with this vehicle Car1 speed, with when
Between elapse, L is constant；If V<0, indicate that rear car Car0 actual speed is less than this vehicle Car1 speed, as time goes by, L will become
Greatly.
2. in vehicle Car1 driving process, finding V>0, this means that L as time goes by<=Lc, after this means that
Vehicle increasingly this vehicle of approaching Car1, Ben Cheruo do not take acceleration or lane change etc. to operate, and T-Box/ vehicle device equipment judges rear car
Car0 will knock into the back this vehicle Car1.
3. if issuing early warning of knocking into the back immediately T-Box/ vehicle device equipment will judge that rear car Car0 will knock into the back this vehicle Car1, penetrate
The sound equipment of T-Box/ vehicle device equipment, which makes a sound, reminds driver that will be knocked into the back, and issues through the screen of T-Box/ vehicle device equipment
Video information reminds driver that will be knocked into the back.
Fig. 4 is the structural schematic diagram of one embodiment of the application vehicle device equipment.
Vehicle device equipment described in present embodiment may include processor 41, and the processor 41 is used to execute program data,
With the step of realizing the car accident method for early warning described in any above embodiment based on relative velocity.
Specifically, the processor 41 judges whether vehicle is in forward traveling；The shape that moves ahead is in determining vehicle
When state, the processor 41, which starts monitoring device monitoring rear of vehicle, whether there is target object；Monitoring that there are targets pair
As when, the processor 41 calculates the relative velocity between vehicle itself and the target object；In the target object with big
When the relative velocity of preset threshold approaches, accident early warning signal is issued.
It should be noted that processor 41 described in present embodiment calculates the phase between vehicle itself and the target object
To speed, the target velocity of rear of vehicle target object can be specifically detected by velocity radar, the processor 41 is according to institute
The target velocity and the travel speed for combining vehicle itself that velocity radar detects are stated, the relative velocity is calculated.
Furthermore, processor 41 described in present embodiment calculates opposite between vehicle itself and the target object
Speed can also include the real-time range detected between rear of vehicle target object and vehicle itself by range radar, described
The predicted time that accident will occur, the processing are calculated according to the relative velocity and the real-time range for processor 41
Device 41 judges the predicted time whether gradually close to the emergency reaction time, when the predicted time approaches the emergency reaction
Between when, issue accident emergency alarm.
It is noted that the application also provides a kind of vehicle, the vehicle can be configured with Fig. 1 and embodiments thereof institute
The car accident prior-warning device based on relative velocity stated.
The application can judge automatically whether need to carry out car accident early warning, then if monitoring that rear of vehicle exists
Target object and target object approaches itself, then can issue warning signal to automated intelligent, meanwhile, the application can determine
Just starting monitoring when moving ahead, avoids the energy waste caused by blindly monitoring, and guarantees that working performance is in optimum state.
It should be noted that present embodiment vehicle device equipment, vehicle and Cloud Server can use WiFi technology or 5G
Technology etc., for example the mutual network connection of 5G car networking network implementations is utilized, 5G technology used by present embodiment can be
One technology towards displaying, the application play crucial supporting function to vehicle using 5G technology, realize connection simultaneously
People, attachment or connection vehicle, can specifically be formed using following three typical case scenes.
First is eMBB (Enhance Mobile Broadband enhances mobile broadband), and user experience rate is made to exist
0.1~1gpbs, peak rate is in 10gbps, and flux density is in 10Tbps/km2；
Second super reliable low time delay communication, the main indicator that the application may be implemented are that time delay is ms end to end
(millisecond) rank；Reliability is close to 100%；
Third is mMTC (magnanimity machine type communication), and the main indicator that the application may be implemented is connection number density, often
Square kilometre connection 1,000,000 other terminals, 10^6/km2.
By the above-mentioned means, the application using 5G technology super reliable, low time delay when the characteristics of, in conjunction with such as radar with take the photograph
It can realize and interact with vehicle, while be felt using the interactive of 5G technology to the ability shown in vehicle offer as first-class
Know function, user can do an output to external environment, and luminous energy does not detect state, can also do some feedbacks etc..Into one
For step, the application is also applied to inside the collaboration of automatic Pilot, such as platooning etc..
In addition, the application can also realize communication enhancing automatic Pilot sensing capability using 5G technology, and can satisfy
Passenger inside the vehicle to the on-vehicle informations such as AR (augmented reality)/VR (virtual reality), game, film, mobile office entertain and it is high-precision
The demand of degree.The download of the other 3D high accuracy positioning map of Centimeter Level may be implemented in 3~4Gb/km, normal vehicle in the application
The data volume of speed limit 120km/h (thousand ms/hour) map lower each second is 90Mbps~120Mbps (megabits per second), simultaneously also
It can support the local map Real-time Reconstruction of fusion onboard sensor information, and dangerous situation modeling and analysis etc..
In this application, above-mentioned vehicle device equipment can be used in the Vehicular system for having vehicle TBOX, can also connect
It is connected in the CAN bus of vehicle.
In the present embodiment, CAN may include three network channels CAN_1, CAN_2 and CAN_3, and vehicle can also be set
An ethernet network channel is set, wherein three CAN network channels can be logical by two car networking gateways and ethernet network
Road is connected, and for example, wherein CAN_1 network channel includes hybrid drive train, and wherein CAN_2 network channel includes
Running guarantee system, wherein CAN_3 network channel includes electric dynamometer system, and ethernet network channel includes higher management system
System, the higher management system include the people-Che-road simulation system being connected on ethernet network channel as node and comprehensive
Close information acquisition unit, the car networking gateway of the CAN_1 network channel, CAN_2 network channel and ethernet network channel
It can integrate in integrated information acquisition unit；CAN_3 network channel and the car networking gateway in ethernet network channel can collect
At in people-Che-road simulation system.
Furthermore, the node of CAN_1 network channel connection has：Engine ECU, motor MCU, battery BMS,
Automatic transmission TCU and hybrid controller HCU；The node of CAN_2 network channel connection has：Rack TT&C system, oil
Door sensor group, power analyzer, instant oil consumption instrument, DC power cabinet, engine water temperature control system, engine motor oil temperature
Cold temperature control system in control system, motor water temperature control system and engine；The node of CAN_3 network channel connection
Have：Electric dynamometer controller.
The rate of the preferred CAN_1 network channel is 250Kbps, using J1939 agreement；CAN_2 network channel
Rate be 500Kbps, using CANopen agreement；The rate of CAN_3 network channel is 1Mbps, using CANopen agreement；With
Too the rate of net network channel is 10/100Mbps, using ICP/IP protocol.
In the present embodiment, the car networking gateway supports the 5G network of 5G technology, may be fitted with
IEEE802.3 interface, DSPI interface, eSCI interface, CAN interface, MLB interface, LIN interface and/or I2C interface.
In the present embodiment, it for example, IEEE802.3 interface can be used for connecting wireless router, is provided for vehicle
WIFI network；DSPI (supplier's manager component) interface is suitable for connecting Bluetooth adapter and NFC (close range wireless communication)
Orchestration can provide bluetooth connection and connect with NFC；ESCI interface is for connecting 4G/5G module, with internet communication；CAN interface
For connecting vehicle CAN bus；MLB interface is used to connect interior MOST (the system transmission towards media) bus, LIN interface
For connecting interior LIN (local interconnect network) bus；IC interface is for connecting DSRC (dedicated short range communication) module and fingerprint
Identification module.In addition, the application can mutually convert each different agreement by using MPC5668G chip, it will be different
Network merged.
In addition, at present embodiment vehicle TBOX system (Telematics-BOX), referred to as vehicle-mounted TBOX or remote information
Manage device.
Present embodiment Telematics is the telecommunications (Telecommunications) and information science of telecommunication
(Informatics) synthesis is defined as leading by the computer system, wireless communication technique, satellite that are built on vehicle
Boat device exchanges the Internet technologies of information such as text, voice and provides the service system of information.Briefly just by wireless
Vehicle is accessed internet (car networking system) by network, provides various information necessary to driving, life for car owner.
In addition, present embodiment Telematics is wireless communication technique, satellite navigation system, network communication technology and vehicle
The synthesis for carrying computer when breaking down in vehicle driving, connects service centre by wireless communication, carries out remote vehicle and examines
Disconnected, built-in computer on the engine can recorde the state of vehicle main component, and provide accurately for maintenance personal at any time
Abort situation and reason.Information is received by user communication terminal and checks traffic map, road conditions introduction, traffic information, peace
Entirely with public security service and entertainment information service etc., in addition, the vehicle of present embodiment can also back seat be arranged electronic game
And network application.It can be appreciated that present embodiment provides service by Telematics, it can be convenient user and understand traffic letter
The parking situation in parking lot is ceased, closed on, current location is confirmed, can also be connect with the network server in family, understand house in time
In electric appliance working order, security situation and guest come to visit situation etc..
Present embodiment vehicle also settable ADAS (Advanced Driver Assistant System, advanced driving
Auxiliary system), it can use the above-mentioned various sensors being installed on vehicle, the environment number inside and outside first time collecting cart
According to the technical processing such as quiet, dynamic object identification, detecting and tracking being carried out, so as to allow driver when most fast
Between discover may generation danger, to arouse attention and improve safety.Accordingly, the application ADAS can also using radar,
The sensors such as laser and ultrasonic wave can detect light, heat, pressure or other for monitoring the variable of vehicle-state, be usually located at
The front/rear collision bumper of vehicle, side-view mirror, inside control stick or on windshield.It is not difficult to find out that above-mentioned ADAS function is used
Various Intelligent hardwares, can be accessed by way of ethernet link car networking system realize communication connection, interaction.
The host of present embodiment vehicle may include logical device, circuit and/or code appropriate for realizing OSI mould
Type (Open System Interconnection, inventionthe open systems interconnection reference model) five layers of operation above and/or
Feature operation.Therefore, host can be generated for the data packet of network transmission and/or be handled these data packets, and also
The data packet received from network can be handled.Meanwhile host can be by executing command adapted thereto and/or running a kind of or more
Application program is planted to provide service for local user and/or one or more remote users or network node.The application not
With in embodiment, one or more security protocols are can be used in host.
The above is only the preferred embodiment of the application, not makes any form of restriction to the application, though
Right the application has been disclosed in a preferred embodiment above, however is not limited to the application, any technology people for being familiar with this profession
Member, is not departing within the scope of technical scheme, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, but all technical spirits pair without departing from technical scheme content, according to the application
Any simple modification, equivalent change and modification made by above embodiments, in the range of still falling within technical scheme.
Claims (11)
1. a kind of car accident prior-warning device based on relative velocity, which is characterized in that the car accident prior-warning device includes：
Monitoring device, for being set on vehicle and monitoring the target object of rear of vehicle；
Processor is connected with the monitoring device, for judging whether vehicle is in forward traveling, is in determining vehicle
When forward traveling, the processor is being supervised for starting the monitoring device monitoring rear of vehicle with the presence or absence of target object
It measures there are when target object, calculates the relative velocity between vehicle itself and the target object, and in the target object
When approaching to be greater than the relative velocity of preset threshold, accident early warning signal is issued.
2. car accident prior-warning device according to claim 1, which is characterized in that the monitoring device includes：
Velocity radar, for detecting the target velocity of rear of vehicle target object；
The processor, is specifically used for：
The travel speed of the target velocity and combination vehicle itself that are detected according to the velocity radar, is calculated described
Relative velocity.
3. car accident prior-warning device according to claim 2, it is characterised in that：
The monitoring device further includes：
Range radar is correspondingly arranged with the velocity radar, for detecting between rear of vehicle target object and vehicle itself
Real-time range；
The processor is also used to that the prediction that accident will occur is calculated according to the relative velocity and the real-time range
Time.
4. car accident prior-warning device according to claim 3, which is characterized in that the processor is also used to judge institute
Predicted time is stated whether gradually close to the emergency reaction time, and when the predicted time approaches the emergency reaction time, sent out
Accidents happened emergency alarm.
5. car accident prior-warning device according to claim 1-4, which is characterized in that the processor is vehicle device
The processor of equipment, or be the processor for the Cloud Server being connected with the vehicle device equipment.
6. car accident prior-warning device according to claim 5, which is characterized in that the vehicle device equipment and the cloud service
The connection type of device includes 3G communication network, 4G communication network, 5G communication network and WIFI network.
7. a kind of car accident method for early warning based on relative velocity, which is characterized in that the vehicle thing based on relative velocity
Therefore method for early warning includes step：
Judge whether vehicle is in forward traveling；
When determining vehicle and being in forward traveling, starting monitoring device monitoring rear of vehicle whether there is target object；
It is monitoring to calculate the relative velocity between vehicle itself and the target object there are when target object；
When the target object is approached to be greater than the relative velocity of preset threshold, accident early warning signal is issued.
8. car accident method for early warning according to claim 7, which is characterized in that the calculating vehicle itself and the mesh
The step of marking the relative velocity between object, specifically includes：
The target velocity of rear of vehicle target object is detected by velocity radar；
The travel speed of the target velocity and combination vehicle itself that are detected according to the velocity radar, is calculated described
Relative velocity.
9. car accident method for early warning according to claim 8, which is characterized in that the calculating vehicle itself and the mesh
Mark object between relative velocity the step of, further include：
The real-time range between rear of vehicle target object and vehicle itself is detected by range radar；
The predicted time that accident will occur is calculated according to the relative velocity and the real-time range；
Judge the predicted time whether gradually close to the emergency reaction time；
When the predicted time approaches the emergency reaction time, accident emergency alarm is issued.
10. a kind of vehicle device equipment, which is characterized in that the vehicle device equipment includes processor, and the processor is for executing program
Data, with realize the car accident method for early warning based on relative velocity described in any item according to claim 7-9 the step of.
11. a kind of vehicle, which is characterized in that the vehicle configuration is with good grounds described in any one of claims 1-6 based on opposite
The car accident prior-warning device of speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810568279.1A CN108839632A (en) | 2018-06-05 | 2018-06-05 | Vehicle, vehicle device equipment, car accident prior-warning device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810568279.1A CN108839632A (en) | 2018-06-05 | 2018-06-05 | Vehicle, vehicle device equipment, car accident prior-warning device and method |
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| CN108839632A true CN108839632A (en) | 2018-11-20 |
Family
ID=64211477
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| CN201810568279.1A Pending CN108839632A (en) | 2018-06-05 | 2018-06-05 | Vehicle, vehicle device equipment, car accident prior-warning device and method |
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Cited By (1)
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|---|---|---|---|---|
| CN115376363A (en) * | 2019-09-04 | 2022-11-22 | 赵婷婷 | System and method for controlling a vehicle |
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