CN114290996A - Vehicle over-the-horizon video sharing system and method based on Internet of vehicles technology - Google Patents
Vehicle over-the-horizon video sharing system and method based on Internet of vehicles technology Download PDFInfo
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Abstract
The invention relates to the technical field of vehicle networking, in particular to a vehicle over-the-horizon video sharing system and method based on the vehicle networking technology, which are used for sharing videos between a front vehicle and a rear vehicle. Compared with the prior art, the vehicle over-the-horizon video sharing system and method based on the Internet of vehicles technology can solve the problem that the field of vision of the connected vehicle is blocked, realize vehicle over-the-horizon sensing and improve the driving safety of the intelligent connected vehicle.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of vehicle networking, in particular to a vehicle over-the-horizon video sharing system and method based on the vehicle networking technology.
[ background of the invention ]
With the continuous breakthrough of the car networking technology, networking is becoming an important development direction and sign of the car technology. The environment perception technology is one of important technologies of the car networking, improves traffic safety and reduces traffic accidents by perceiving surrounding environment to vehicles.
The traditional perception of the external environment of the vehicle is divided into automatic driving and manual driving, wherein the automatic driving adopts a perception mode based on sensors such as a camera and a radar, and the manual driving is mainly based on human visual perception. Whether the automobile is driven manually or automatically, the blind area is shielded in sensing, for example, a driver drives the automobile to follow a higher automobile, so that the front automobile is higher, the view of the driver in the rear automobile is blocked, and the driver in the rear automobile or the automatically-driven automobile cannot observe the front traffic condition and the traffic light state, so that the potential safety hazard is brought, the driving behavior which violates the traffic rules is possibly made, and the potential safety hazard is brought to traffic participants. Based on this, it is urgently needed to provide a vehicle networking over-the-horizon sensing sharing solution to overcome the problem that a driver of a vehicle driving due to the shielding of a front vehicle or road elements cannot timely and accurately know the traffic information in front.
[ summary of the invention ]
In order to overcome the problems, the invention provides a vehicle over-the-horizon video sharing system and method based on the internet of vehicles, which can effectively solve the problems.
The invention provides a technical scheme for solving the technical problems, which comprises the following steps: the vehicle over-the-horizon video sharing system based on the internet of vehicles technology is used for video sharing between a front vehicle and a rear vehicle and comprises a video acquisition device, a vehicle-mounted unit, an operation platform and a certificate management platform, wherein the video acquisition device is installed at the front ends of the interior of the front vehicle and the interior of the rear vehicle; a vehicle-mounted screen display end is arranged on one side of the video acquisition device, a front video camera is arranged on the side opposite to the vehicle-mounted screen display end, and the front video camera is arranged towards the front of the vehicle; the on-board unit supports network hotspots.
Preferably, the video capture device supports a network connection via an access network hotspot.
Preferably, the operation platform is a car networking data operation platform, and comprises a platform layer, a data layer and a base layer.
Preferably, the certificate management platform is a vehicle networking certificate management platform and comprises a security certificate management system, a vehicle networking security trust root CA and a vehicle networking security trust root management platform, wherein the security certificate management system is connected to the vehicle networking security trust root CA, the vehicle networking security trust root CA is connected to the vehicle networking security trust root management platform, and the vehicle-mounted unit is connected to the security certificate management system.
A vehicle over-the-horizon video sharing method based on the Internet of vehicles technology comprises the following steps:
step S1, the vehicle-mounted unit of the rear vehicle sends a video sharing request and the position information of the rear vehicle to the vehicle-mounted unit of the front vehicle, and the vehicle-mounted unit of the front vehicle authorizes the passing request through a certificate;
step S2, the video acquisition device of the front vehicle acquires the video in front of the front vehicle, encodes the video and compresses the acquired original video and audio signals;
step S3, the video acquisition device of the front vehicle transmits the processed video stream to the vehicle-mounted unit of the front vehicle through the network;
step S4, the vehicle-mounted unit of the front vehicle uploads the obtained video stream to the Internet of vehicles operation management platform through the 4G or 5G module;
step S5, the Internet of vehicles operation management platform issues the processed video streaming address to the rear vehicle-mounted unit requesting sharing;
and step S6, the vehicle-mounted unit of the rear vehicle sends the acquired video stream address to the vehicle-mounted screen display end of the rear vehicle for video decoding and display.
Compared with the prior art, the vehicle over-the-horizon video sharing system and method based on the internet of vehicles technology can enable a driver of a rear vehicle to timely and accurately acquire the state and traffic condition of a traffic signal lamp in front even if the driver is shielded by a front vehicle, so that the problem of shielding of the vehicle in front of an off-line automobile is solved, the vehicle over-the-horizon sensing is realized, and the driving safety of the intelligent internet-connected automobile is improved; meanwhile, the 5.9G special network and the certificate of the Internet of vehicles can ensure the privacy of users, prevent information from being stolen, facilitate and quickly transmit videos, are more visual, and can simultaneously meet the requirement of acquiring road traffic state information in front, signal lamp information and the like in real time, thereby bringing more comfortable and safe experience to users using the Internet of vehicles.
[ description of the drawings ]
FIG. 1 is a front view of a video acquisition device of a vehicle over-the-horizon video sharing system based on the Internet of vehicles technology;
FIG. 2 is a rear view of a video acquisition device of the vehicle over-the-horizon video sharing system based on the Internet of vehicles technology;
FIG. 3 is a rear structure diagram of a vehicle-mounted unit of the vehicle over-the-horizon video sharing system based on the Internet of vehicles technology;
fig. 4 is a flowchart illustrating steps of a vehicle over-the-horizon video sharing method based on the internet of vehicles.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that all directional indications (such as up, down, left, right, front, and back … …) in the embodiments of the present invention are limited to relative positions on a given view, not absolute positions.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Referring to fig. 1 to 3, the vehicle over-the-horizon video sharing system based on the car networking technology is used for sharing videos between a front car and a rear car, and includes a video acquisition device 100, a vehicle-mounted unit 200(OBU), an operation platform and a certificate management platform, wherein the video acquisition device 100 is installed at the front end of the interior of the front car and the rear car, the vehicle-mounted unit 200 is installed inside the front car and the rear car, the video acquisition device 100 and the vehicle-mounted unit 200 in the same vehicle are connected through a network, the network is an intranet and includes WIFI and the like. The on-board unit 200 is connected to an operation platform and a certificate management platform via a network. The front vehicle acquires a vehicle front traffic state video through the video acquisition device 100, the acquired traffic state video comprises a traffic signal lamp state, a front traffic jam state, a front emergency accident and the like, the video is transmitted to the vehicle-mounted unit 200 through WIFI, and the vehicle-mounted unit 200 uploads the video to the operation platform through a 4G/5G network. The vehicle-mounted unit 200 supports network hotspots, firstly, the rear vehicle-mounted unit 200 broadcasts a video sharing request and own position information to the vehicle-mounted unit 200 of the front vehicle, and after the vehicle-mounted unit 200 of the front vehicle receives the request, the request is authorized to pass through by a certificate in combination with position judgment. The operation platform issues a video sharing link to the rear vehicle-mounted unit 200 needing video sharing, the rear vehicle-mounted unit 200 sends a video address to the video acquisition device 100, and the video acquisition device 100 can access the video address through a network to display the sensing sharing video.
The video acquisition device 100 is a hard Disk Video Recorder (DVR) with a screen, a vehicle-mounted screen display end 110 is arranged on one side of the video acquisition device 100, a front video camera 140 is arranged on one side opposite to the vehicle-mounted screen display end 110, the front video camera 140 is arranged towards the front of a vehicle, and the front video camera 140 acquires a video in the front of the vehicle in real time and displays the video through the vehicle-mounted screen display end 110. The video capture device 100 is further provided with an audio playing port 130 and a GPS antenna 120, and the audio playing port 130 is used for audio playing. The video capture device 100 may support network access via a network hotspot.
The front-end video camera 140 has a highest definition of 1080P/30fps, supports cyclic video recording, supports configurable (1/3 minutes) time of each video recording period, simultaneously ensures that the video recording does not leak seconds, supports photographing and video locking, and stores the video on a TF storage card. The screen size of the vehicle-mounted screen display end 110 is 9.66 inches, and the resolution is 1280 x 320.
The vehicle-mounted unit 200 is a V2X vehicle-mounted unit (OBU), accords with 3GPP standards, supports V2X communication, supports PC5 port and UU port communication, can communicate with other vehicle data through PC5 port, can also communicate data transmission with a platform layer through UU port, supports WIFI function, and can correspondingly debug through WIFI access equipment. The working frequency band of the V2X is 5905-. One end of the vehicle-mounted unit 200 is respectively provided with a WIFI/BT antenna interface 210, a high-precision GNSS antenna interface 220, a 4G/5GM MIMO antenna interface 230, a GPS antenna interface 240, a V2X auxiliary antenna interface 250 and a V2X main antenna interface 260.
The operation platform is a car networking operation management platform, and has the main functions of equipment management, video management, car road collaborative event management, data management and the like. The car networking operation management platform comprises a device layer, a platform layer and an application layer. The application layer mainly comprises a vehicle end, a visual large screen end, a roadside information screen and the like. And the platform outputs the capability to the vehicle end to realize vehicle road collaborative scene display and video sharing display. The platform layer mainly comprises two parts of a device access and a capability platform. And the equipment management platform accesses video data from the camera, can store videos and supports real-time distribution of video streams to the vehicle end. The equipment layer comprises equipment which is required to be accessed for realizing the vehicle-road cooperation scene, and comprises an OBU, an RSU, a camera and the like. The automobile data recorder is responsible for video acquisition, and the OBU is responsible for providing Wi-Fi hot spots, information transmission and vehicle authentication.
The certificate management platform is a car networking safety certificate management platform, the car networking safety certificate management platform is connected to the car networking safety trust root management platform, and the vehicle-mounted unit is connected to the car networking safety certificate management platform. The Internet of vehicles safety certificate management platform comprises an ITS-CA platform and a safety protocol stack. When the vehicle security trust management system works, the security certificate management system is used as a second-level node to be accessed into the related vehicle networking security trust roots CA, each vehicle networking security trust root CA is accessed into the vehicle networking security trust root management platform, the vehicle networking security trust root management platform generates and distributes a trust root certificate list, each security certificate management system acquires the trust root certificate list and distributes the trust root certificate list to the vehicle, or the vehicle acquires the trust root certificate list from the vehicle networking security trust root management platform by itself, and mutual authentication and mutual trust intercommunication among the vehicles are realized. When the front vehicle and the rear vehicle perform secure communication, the vehicle-mounted unit 200 of the rear vehicle firstly needs to acquire a registration certificate and a pseudonymous certificate through the certificate management platform, then the pseudonymous certificate is used for signing the broadcast message, the vehicle-mounted unit 200 of the front vehicle receives and verifies the pseudonymous certificate and the signature, the authorization authentication V2V is agreed for secure communication, and the authenticity, confidentiality, integrity and anti-repudiation of a message source can be ensured.
Referring to fig. 4, the vehicle over-the-horizon video sharing method based on the internet of vehicles according to the present invention includes the following steps:
in step S1, since the rear vehicle is in a position where the blind area of the field of view obstructs the obstacle, the on-board unit 200 of the rear vehicle sends the video sharing request and the position information of the rear vehicle to the on-board unit 200 of the front vehicle, and the on-board unit 200 of the front vehicle authorizes the passing request through the certificate.
In step S1, the vehicle-mounted unit 200 of the following vehicle broadcasts the video sharing request and the position information of the following vehicle; the front vehicle receives the broadcast and confirms the legal identity of the rear vehicle through the Internet of vehicles security certificate management platform; after the confirmation of the rear vehicle identification, the front vehicle-mounted unit 200 determines the relative position of the vehicle, and if the front vehicle is in the front position of the rear vehicle, authorizes the pass request.
Step S2, the video acquisition device 100 of the front vehicle acquires the video in front of the front vehicle, encodes the video, and compresses the acquired original video and audio signals, so that the video can be transmitted in real time on the Internet of vehicles;
step S3, the video acquisition device 100 of the front vehicle transmits the processed video stream to the vehicle-mounted unit 200 of the front vehicle through the network;
step S4, the vehicle-mounted unit 200 of the front vehicle uploads the obtained video stream to the Internet of vehicles operation management platform through the 4G or 5G module;
step S5, the Internet of vehicles operation management platform issues the processed video streaming address to the rear vehicle-mounted unit 200 requesting sharing;
in step S6, the rear vehicle-mounted unit 200 sends the acquired video stream address to the vehicle-mounted screen display terminal 110 of the rear vehicle for video decoding and display.
It should be noted that: when a traffic signal lamp or an emergency traffic event is arranged in front of the vehicle in running, and the view field is blocked by the vehicle in front or the roadside element, the video stream information in front of the vehicle in front can be acquired before the vehicle exits the emergency place of the intersection or before the vehicle exits the intersection where the traffic signal lamp is located.
It should be noted that: the video stream address can be obtained by a vehicle party authorized by the Internet of vehicles certificate management platform. Therefore, the method can ensure the privacy of the user and prevent illegal molecules from stealing information.
It should be noted that: the addresses issued by the video management platform are dynamically changed, and even if the video is shared by the same front vehicle, different rear vehicle requests and different addresses are also different. After one sharing is completed, the address is converted into an invalid address.
Compared with the prior art, the vehicle over-the-horizon video sharing system and method based on the internet of vehicles technology can enable a driver of a rear vehicle to timely and accurately acquire the state and traffic condition of a traffic signal lamp in front even if the visual field is blocked, so that the problem that the visual distance of the current internet-connected vehicle is blocked is solved, the vehicle over-the-horizon sensing is realized, and the driving safety of the intelligent internet-connected vehicle is improved; meanwhile, the private network and the certificate can guarantee the privacy of the user, information stealing is prevented, video transmission is convenient, rapid and visual, and meanwhile, the requirement of acquiring road traffic state information and signal lamp information in front in real time can be met, and more comfortable and safer experience is brought to the user using the Internet of vehicles.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit of the present invention should be included in the scope of the present invention.
Claims (5)
1. The vehicle over-the-horizon video sharing system based on the Internet of vehicles technology is used for video sharing between a front vehicle and a rear vehicle and is characterized by comprising a video acquisition device, a vehicle-mounted unit, an operation platform and a certificate management platform, wherein the video acquisition device is installed at the front ends of the interior of the front vehicle and the interior of the rear vehicle;
a vehicle-mounted screen display end is arranged on one side of the video acquisition device, a front video camera is arranged on the side opposite to the vehicle-mounted screen display end, and the front video camera is arranged towards the front of the vehicle;
the on-board unit supports network hotspots.
2. The vehicle over-the-horizon video sharing system based on the internet of vehicles technology as claimed in claim 1, wherein the video capture device supports a network that is connectable through an access network hotspot.
3. The vehicle over-the-horizon video sharing system based on the internet of vehicles technology as claimed in claim 1, wherein the operation platform is an internet of vehicles operation management platform, comprising a device layer, a platform layer and an application layer.
4. The vehicle over-the-horizon video sharing system based on the Internet of vehicles technology as claimed in claim 1, wherein the certificate management platform is an Internet of vehicles security certificate management platform, the Internet of vehicles security certificate management platform is connected to an Internet of vehicles security trust root management platform, and the vehicle-mounted unit is connected to the Internet of vehicles security certificate management platform.
5. A vehicle over-the-horizon video sharing method based on the Internet of vehicles technology is characterized by comprising the following steps:
step S1, the vehicle-mounted unit of the rear vehicle sends a video sharing request and the position information of the rear vehicle to the vehicle-mounted unit of the front vehicle, and the vehicle-mounted unit of the front vehicle authorizes the passing request through a certificate;
step S2, the video acquisition device of the front vehicle acquires the video in front of the front vehicle, encodes the video and compresses the acquired original video and audio signals;
step S3, the video acquisition device of the front vehicle transmits the processed video stream to the vehicle-mounted unit of the front vehicle through the network;
step S4, the vehicle-mounted unit of the front vehicle uploads the obtained video stream to the Internet of vehicles operation management platform through the 4G or 5G module;
step S5, the Internet of vehicles operation management platform issues the processed video streaming address to the rear vehicle-mounted unit requesting sharing;
and step S6, the vehicle-mounted unit of the rear vehicle sends the acquired video stream address to the vehicle-mounted screen display end of the rear vehicle, and the vehicle-mounted screen display end accesses the video stream address to perform video decoding and display.
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- 2021-12-30 CN CN202111660981.9A patent/CN114290996A/en active Pending
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| CN105743986A (en) * | 2016-03-29 | 2016-07-06 | 安徽中凯信息产业有限公司 | Internet of Vehicles based smart city dynamic video monitoring system |
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