CN102184644A - Vehicle-networking-based highway active anti-collision method - Google Patents
Vehicle-networking-based highway active anti-collision method Download PDFInfo
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- CN102184644A CN102184644A CN2011101070826A CN201110107082A CN102184644A CN 102184644 A CN102184644 A CN 102184644A CN 2011101070826 A CN2011101070826 A CN 2011101070826A CN 201110107082 A CN201110107082 A CN 201110107082A CN 102184644 A CN102184644 A CN 102184644A
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Abstract
The invention discloses a vehicle-networking-based highway active anti-collision method. A device mainly comprises a master control module, an acceleration sensor module, a global position system (GPS) information acquisition module, a short-distance communication module, an alarm module and an information storage module. Various modules which are arranged on a vehicle and vehicles around the vehicle on a highway form a temporary mobile Ad-hoc network in real time, and the acceleration, speed, position and other vehicle safety related information of the vehicle are transmitted to realize active anti-collision of the vehicle.
Description
Technical field
The present invention relates to the automobile anti-collision method field, be specially a kind of highway active avoiding collision based on the car networking.
Background technology
Safety practice can generally be divided into active safety measure (accident that prevents takes place) and passive security measure (reducing damage sequence).In the existing automotive safety measure, common passive security measure has air bag, belt with pre-load device, occupant's neck protection system (WHIPS), and the GOA(Global Outstanding Assessment of Toyota Company, the Safety Design of the top level in the world) design patent; Common active safety measure has AWS anticollision early warning system, TCS traction control system, VSA vehicle stability controlled system, ABS anti-lock braking system, EDB electronic braking force to distribute control system or the like.In existing these safety practices, only be to be confined to or only be passive crashproof measure, realize crashproof from the source to the transformation of physical construction.In today that traffic transport industry develops rapidly, this is a problem demanding prompt solution.
The car networking, be meant by recognition technologies such as less radio-frequencies, be implemented on the information network platform to the attribute information of all vehicles and quiet, multidate information extracts and effectively utilize, and effectively supervises and provide integrated service according to different functional requirements to the running status of all vehicles.Not sending a car networking will the main realization that cooperatively interacts by wireless communication technology, GPS technology and sensing technology.In the car networking epoch in future, can be a kind of complementary relationship between wireless communication technology and the sensing technology, when being in the blind area of sensors such as corner when automobile, wireless communication technology will play a role; And when the dropout of radio communication, sensor can use again.
MANET (Ad-hoc Network) is under a kind of condition that does not have a backbone network, or the network system organized interconnected by distributed protocol by the communication node in the system.Mobile self-grouping network (Mobile Ad-hoc Network) comes from Military Application, and through the research and development of three more than ten years, application target expands vast civil areas such as home network, personal radio communication to.Mobile ad hoc network is a MANET of supporting that communication node moves, it mainly be in the open air or the place of not having a fixed base stations provide communication service to propose.Compare with traditional mobile communication system, mobile ad hoc network has following characteristics: 1) node mobility or maneuverability, 2) dynamic topology, become 5 when 3) distributivity, 4) limited and capacity link of transmission bandwidth is) independence, 6) power supply energy is limited, and 7) limited physical security.
Summary of the invention
The purpose of this invention is to provide a kind of highway active avoiding collision, with serious traffic hazards such as the vehicle on the same track on the minimizing highway knocks into the back, the security that improves hot-short based on the car networking.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of highway active avoiding collision based on the car networking, it is characterized in that: adopt the car-mounted terminal be installed on the vehicle, described car-mounted terminal comprises main control module and the alarm module that is connected with described main control module, information storage module, short-range communication module, acceleration sensor module, GPS information acquisition module
Integrated sound, optical alarm circuit in the described alarm module; Described short-range communication module is a wireless communication module, and the short-range communication module of various vehicles by separately that is in the short-range communication module efficient communication scope realizes communicating with one another the composition mobile self-grouping network; Described acceleration sensor module is gathered the acceleration information of this vehicle; Described GPS information acquisition module is gathered speed, position and the travel route information of this vehicle; Described information storage module is stored the data that described acceleration transducer, GPS information acquisition module are gathered, and the Processing Algorithm of the data that acceleration transducer, GPS information acquisition module are gathered;
The described acceleration sensor module of described master control module controls is gathered the acceleration information of this vehicle, control described GPS information acquisition module and gather the position and the speed data of this vehicle, the described information storage module of master control module controls is stored described data, and data are issued by the wireless ad hoc network that described short-range communication module and other short-range communication module are formed, when other vehicles sail the priority communication scope of short-range communication module into, these data of issue will be received, s operation control strategy in the described memory module of described main control module calls calculates, and draws the safe distance d between the vehicle
s, according to safe distance d
sJudge whether to exist potential danger, when appearance is unusual, send alerting signal to vehicle drivers.
Described a kind of highway active avoiding collision based on the car networking, it is characterized in that: the short-range communication module of forming the vehicle of mobile self-grouping network realizes the network interconnection by the transceive data bag each other.
Described a kind of highway active avoiding collision based on the car networking, it is characterized in that: when the distance between the vehicle of a certain vehicle and original mobile self-grouping network surpasses the efficient communication scope of short-range communication module, the original mobile self-grouping network of described vehicle derailing, and form new mobile self-grouping network by short-range communication module and other vehicles that are in the efficient communication scope of short-range communication module.
Among the present invention, short-range communication module on vehicle and the short-range communication module on the surrounding vehicles are formed mobile self-grouping network, realize the network interconnection by transmitting packet.When certain vehicle in the mobile self-grouping network and other vehicle distances have surpassed short-range communication module efficient communication scope, the short-range communication module of this vehicle has broken away from original mobile self-grouping network, again with the short-range communication module of other vehicles is interconnected becomes mobile self-grouping network in the short-range communication module efficient communication scope, proceed the transmission and the reception of safety-critical information.
Among the present invention, acceleration sensor module is used for collection vehicle at the acceleration information of all directions, comprises horizontal direction and vertical direction.Speed, position and travel route information when the GPS information acquisition module is used for the collection vehicle operation.Information storage module is used for storing the data that acceleration transducer and GPS information acquisition module collect, and to the Processing Algorithm of data, finally draws the safe distance between the vehicle on vehicle and near the track
Alarm module reminds the driver and conductor to note by modes such as sound and light alarms, provides certain driving suggestion.Short-range communication module be used for surrounding vehicles on short-range communication module form mobile self-grouping network, realize the network interconnection by transmitting packet, and carry out the transmission and the reception of safety-critical information between the vehicle near the track.When certain vehicle near the track has surpassed the efficient communication scope of short-range communication module, the short-range communication module of this vehicle has broken away from original mobile self-grouping network, again with the short-range communication module of other vehicles is interconnected becomes mobile self-grouping network in the efficient communication scope of short-range communication module, proceed the transmission and the reception of safety-critical information.
In the present invention, main control module is coordinated the work between each module of control, the assurance system normally moves, acceleration sensor module and GPS information acquisition module be the information such as acceleration, speed and position of collection vehicle in real time, short-range communication module in real time with near track on vehicle in the efficient communication scope of short-range communication module form mobile self-grouping network, carry out the transmission and the reception of safety-critical information.Main control module mainly coordinates to control the working condition between each module, and the assurance system normally moves, and the data of information storage module are handled, and draws the safe distance d between the vehicle on vehicle and near the track
s
Advantage of the present invention is: (1) can form mobile self-grouping network with the short-range communication module on the surrounding vehicles by short-range communication module, realizes the network interconnection by transmitting packet.(2) handle by the data that acceleration sensor module and GPS information module are collected, draw the safe distance d between the vehicle on vehicle and near the track
s(3) incorporate the notion that car is networked in this method, car has been considered as a node in the network, belonged to the key areas of this future transportation development of intelligent transportation.
Description of drawings
Fig. 1 is the structured flowchart of device that the present invention adopts.
Fig. 2 is the inventive method process flow diagram.
Embodiment
As shown in Figure 1.Device of the present invention comprises main control module 1, also includes the alarm module 2, information storage module 3, short-range communication module 4, acceleration sensor module 5, the GPS information acquisition module 6 that link to each other with main control module 1.
In the on-vehicle terminal device of the present invention, the main control chip that adopts in the main control module is equipped with certain peripheral circuit and realizes control function to other each modules; Alarm module adopts common buzzer alarm circuit; Short-range communication module can adopt existing wireless communication technology, as WiFi, and ZigBee etc.; What the GPS information acquisition module adopted is gps signal receiver, by the orbit parameter data of gps signal receiver capture space satellite, and within it portion's computational solution separate out the longitude and latitude of user geographic location, highly, information such as speed.
After automobile sails highway into, acceleration sensor module on the car-mounted terminal and GPS information acquisition module be information such as the acceleration in the collection vehicle operational process, speed, position in real time, with these data storage that collect in information storage module, information such as data processing algorithm in the main control module calls information storage module and the acceleration that collects, speed, position, after the calculation process, draw the safe distance d between the vehicle on vehicle and near the track
s, and deposit this information in information storage module.Simultaneously, the short-range communication module in the system in real time with near track vehicle on car-mounted terminal on short-range communication module form mobile self-grouping network, realize the network interconnection by transmitting packet, carry out sharing of vehicle safety key message with surrounding vehicles.When with near track on the distance of certain car less than safe distance d
sThe time, in time the driver and conductor is carried out sound and light alarm by alarm module, provide certain driving suggestion.
As shown in Figure 2, diagram is the vehicle distribution plan in certain highway section on the highway.A wireless short-range communication module all is installed on each car under steam, form interim mobile ad hoc network by the wireless short-range communication module between the vehicle in the certain physical scope, the LAN-sharing and the issue of the safety-critical information when realizing vehicle operating.
Might as well serve as to consider object with the vehicle A2 on the right lateral fast, when vehicle A2 exercises on highway, may exist and the influential vehicle A1 of its safety-critical information, A3, B1, B2, B3, C1, C2, C3 etc. around it.Diagram vehicle A2 is in the process of right travel, relevant information when moving by acceleration sensor module in the car-mounted device 5 and GPS information acquisition module 6 real-time collection vehicle, the information that these are collected is stored in information storage module 3 then.At this moment, the short-range communication module in the car-mounted device has been formed interim mobile self-grouping network by the vehicle in certain networking strategy and the certain physical distance scope on every side
With
, two dotted ellipse among the figure are represented the physical extent of two networks.By the relevant algorithm in the network, with certain node in this casual network as the route in the network, be used for packet in the transmission network, information such as acceleration, speed, position and travel route when comprising the operation of each car in these packets also comprise the vehicle condition of the place ahead and both sides.Under the situation of Fig. 2,
C2 node conduct in the network
The routing node at networking,
A2 node conduct in the network
The routing node of network, and
Network and
Network is interconnected by A2 and two routing nodes of C2, realized the sharing and issue of information between two networks.Roll the physical extent that routing node can reach away from along with the operation of vehicle may have some vehicle, may break away from as the vehicle D1 among Fig. 2
Network, vehicle B1 may break away from
Network, when them because after certain reason breaks away from network, can be automatically again with on every side or the vehicle in the place ahead form interim mobile self-grouping network
At network
In correlation circumstance with at network
With
Situation similar.
Claims (3)
1. one kind based on the highway of car networking avoiding collision initiatively, it is characterized in that: adopt the car-mounted terminal be installed on the vehicle, described car-mounted terminal comprises main control module and the alarm module that is connected with described main control module, information storage module, short-range communication module, acceleration sensor module, GPS information acquisition module
Integrated sound, optical alarm circuit in the described alarm module; Described short-range communication module is a wireless communication module, and the short-range communication module of various vehicles by separately that is in the short-range communication module efficient communication scope realizes communicating with one another the composition mobile self-grouping network; Described acceleration sensor module is gathered the acceleration information of this vehicle; Described GPS information acquisition module is gathered speed, position and the travel route information of this vehicle; Described information storage module is stored the data that described acceleration transducer, GPS information acquisition module are gathered, and the Processing Algorithm of the data that acceleration transducer, GPS information acquisition module are gathered;
The described acceleration sensor module of described master control module controls is gathered the acceleration information of this vehicle, control described GPS information acquisition module and gather the position and the speed data of this vehicle, the described information storage module of master control module controls is stored described data, and data are issued by the wireless ad hoc network that described short-range communication module and other short-range communication module are formed, when other vehicles sail the priority communication scope of short-range communication module into, the data of issue will be received, s operation control strategy in the described memory module of described main control module calls calculates, and draws the safe distance d between the vehicle
s, according to safe distance d
sJudge whether to exist potential danger, when appearance is unusual, send alerting signal to vehicle drivers.
2. a kind of highway active avoiding collision based on the car networking according to claim 1, it is characterized in that: the short-range communication module of forming the vehicle of mobile self-grouping network realizes the network interconnection by the transceive data bag each other.
3. a kind of highway active avoiding collision according to claim 1 based on the car networking, it is characterized in that: when the distance between the vehicle of a certain vehicle and original mobile self-grouping network surpasses the efficient communication scope of short-range communication module, the original mobile self-grouping network of described vehicle derailing, and form new mobile self-grouping network by short-range communication module and other vehicles that are in the efficient communication scope of short-range communication module.
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