CN111044063B - Vehicle, navigation terminal and travel road condition construction method based on historical navigation data - Google Patents
Vehicle, navigation terminal and travel road condition construction method based on historical navigation data Download PDFInfo
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- CN111044063B CN111044063B CN201811198816.4A CN201811198816A CN111044063B CN 111044063 B CN111044063 B CN 111044063B CN 201811198816 A CN201811198816 A CN 201811198816A CN 111044063 B CN111044063 B CN 111044063B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3407—Route searching; Route guidance specially adapted for specific applications
Abstract
The application relates to the technical field of vehicle navigation, and provides a vehicle, a navigation terminal and a travel road condition construction method based on historical navigation data. The application can reproduce road conditions according to the historical data of the user under the application scenes of navigation and the like, is convenient for the user to recall and know the details of the road conditions at once, avoids unnecessary traffic road conditions and is convenient for the user.
Description
Technical Field
The application relates to the technical field of navigation, in particular to a travel road condition construction method based on historical navigation data and a vehicle adopting the travel road condition construction method based on the historical navigation data.
Background
With the acceleration of the worldwide urbanization process, road traffic safety has become a global issue. According to the research and investigation of traffic accidents in the past, the traffic accidents are not uniformly distributed on the road network, and most of the traffic accidents are concentrated on some frequent road sections on the road network, so that the road sections with congestion or creep are also commonly called as road traffic black spots.
The formation of black spots in road traffic is complex and is generally caused by a combination of various accident causes, and the causes can be summarized into four major factors which easily cause traffic accidents, including four major causes of automobile factors, road factors, driver factors and environmental factors. Such as automotive factors (e.g., vehicle run-away, collision, rear-end collision, rollover), road factors (steep road surface, slippery road surface, excessive gradient, excessive cornering), driver factors (e.g., driver distraction, tired driving, drunk driving), environmental factors (traffic congestion, heavy rain, snow, fog), etc. It is further noted that accidents often occur due to the concentrated effect of multiple factors rather than a single factor, and that these factors that cause the accident are not uniform from place to place. In addition, these factors lead to similar traffic accidents for vehicles or drivers in similar situations with a high probability of accident repeatability.
On the other hand, when the user appears, the user is likely to need to walk the once-navigated routes, and congestion, creep and other conditions of the routes are likely to occur inevitably, so how to avoid the traffic black points becomes a major problem that the user has to solve.
Aiming at the defects in the prior art, the inventor of the application provides a vehicle, a navigation terminal and a travel road condition construction method based on historical navigation data through intensive research.
Disclosure of Invention
The application aims to provide a vehicle, a navigation terminal and a travel road condition construction method based on historical navigation data, which can reproduce road conditions according to the historical data of a user under application scenes such as navigation, and the like, so that the user can conveniently recall and know the details of the past road conditions, avoid unnecessary traffic road conditions and are convenient for the user.
In order to solve the technical problems, the present application provides a method for constructing a road condition of travel based on historical navigation data, which is one implementation mode, the method for constructing a road condition of travel based on historical navigation data comprises the following steps:
acquiring a planned navigation route of a user;
searching whether the matched historical navigation data exists according to the planned navigation route;
if the matched historical navigation data exist, the historical navigation data are obtained, and the historical journey road condition of the planned navigation route is constructed in a simulated playback mode according to the historical navigation data;
and prompting the historical travel road conditions.
As one embodiment, the step of constructing the historical trip road condition of the planned navigation route according to the historical navigation data by using a mode of analog playback specifically includes the following steps:
acquiring a track point array of the historical navigation data;
preparing the track point number array into playback simulation data and periodically and dynamically loading the history navigation data;
recording the interval speed between track point arrays according to the analog playback;
judging the corresponding section road conditions according to the section speeds;
and after the simulation playback is completed, integrating the road conditions of the plurality of intervals to form a new track row so as to obtain the history journey road conditions.
As one embodiment, the step of determining the corresponding section road condition according to the section speed specifically includes the following steps:
comparing the interval speed with a plurality of preset speed ranges to identify and obtain the speed range to which the interval speed belongs;
and judging the corresponding section road conditions according to the speed range of the section speed, wherein different speed ranges define different section road conditions.
As one embodiment, the step of determining the corresponding section road condition according to the speed range to which the section speed belongs further includes the following steps:
acquiring longitude and latitude information of the road condition of the section;
judging environmental factors of the road conditions of the section according to the longitude and latitude information;
and carrying out road condition correction on the road condition of the section according to the environmental factors, wherein the longitude and latitude information is marked into the new track column.
As one embodiment, the step of constructing the historical trip road condition of the planned navigation route according to the historical navigation data by using a mode of analog playback further includes the following procedures:
acquiring a plurality of reference journey road conditions corresponding to the historical journey road conditions provided by other users through a wireless network or a wired network;
judging whether a plurality of reference travel road conditions are completely matched with the history travel road conditions;
and if the road conditions are not completely matched, carrying out road condition correction on the historical travel road conditions according to a plurality of reference travel road conditions.
As one embodiment, the step of prompting the historical trip road condition further includes the following steps:
acquiring the time consumption of the interval corresponding to the road condition of each interval;
summing the time consumption of a plurality of intervals corresponding to the road conditions of the plurality of intervals to obtain travel time consumption;
prompting the journey time and/or the interval time, wherein the interval time is marked into the new track column.
As one embodiment, the step of obtaining the planned navigation route of the user specifically includes the following steps:
and acquiring the planned navigation route according to the starting point and the ending point input by the user, or processing the planned navigation route according to the rough route which is manually drawn by the user on the navigation map interface.
As one implementation manner, the historical navigation data is collected via the mobile communication terminal and/or the vehicle-mounted device, and the collecting process comprises the following steps:
shooting by using imaging equipment detachably arranged on a vehicle to obtain traffic live conditions;
collecting operation signals of a vehicle driver through various sensors detachably arranged on the vehicle, wherein the operation signals comprise at least three of time, steering wheel rotation vectors, GPS parameters, brakes, throttles, hand brakes, clutches, lamplight and hand brakes;
transmitting the traffic situation or the operation signal through a high-speed interconnection bus detachably arranged on the vehicle;
and processing the traffic condition and the operation signal by using a mobile communication terminal and/or a vehicle machine device, and carrying out one-to-one correspondence storage by combining the track points and time of the geographic position to obtain the historical navigation data.
In order to solve the above technical problems, the present application further provides a navigation terminal, as one implementation manner, the navigation terminal is configured with a processor, and the processor is configured to execute program data, so that the navigation terminal implements the method for constructing the road condition of the journey based on the historical navigation data.
In order to solve the technical problem, the application further provides a vehicle, and the navigation terminal is configured as one implementation mode.
According to the vehicle, the navigation terminal and the travel road condition construction method based on the historical navigation data, through obtaining the planned navigation route of the user, searching whether the matched historical navigation data exists according to the planned navigation route, obtaining the historical navigation data if the matched historical navigation data exists, constructing the historical travel road condition of the planned navigation route according to the historical navigation data in a simulated playback mode, and prompting the historical travel road condition. The application can reproduce road conditions according to the historical data of the user under the application scenes of navigation and the like, is convenient for the user to recall and know the details of the road conditions at once, avoids unnecessary traffic road conditions and is convenient for the user.
The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application, as well as the preferred embodiments thereof, together with the following detailed description of the application, given by way of illustration only, together with the accompanying drawings.
Drawings
Fig. 1 is a flow chart illustrating an embodiment of a method for constructing a road condition of a journey based on historical navigation data according to the present application.
Fig. 2 is a schematic structural diagram of an embodiment of a navigation terminal according to the present application.
Fig. 3 is a schematic structural view of an embodiment of the vehicle of the present application.
Detailed Description
In order to further describe the technical means and effects adopted for achieving the purpose of the preset application, the following detailed description refers to the specific implementation, method, steps, features and effects of the present application with reference to the accompanying drawings and preferred embodiments.
The foregoing and other features, aspects, and advantages of the present application will become more apparent from the following detailed description of the preferred embodiments, which proceeds with reference to the accompanying drawings. While the application may be susceptible to further details of embodiments and examples of means and effects for achieving the desired purpose, the drawings are provided for the purpose of reference and illustration only and are not intended to be limiting.
Referring to fig. 1, fig. 1 is a flowchart illustrating an embodiment of a method for constructing a road condition of a journey based on historical navigation data according to the present application.
It should be specifically noted that the method for constructing the road condition of the journey based on the historical navigation data according to the present embodiment may include, but is not limited to, the following steps.
Step S101, acquiring a planned navigation route of a user;
step S102, searching whether the matched historical navigation data exists according to the planned navigation route;
step S103, if the matched historical navigation data exist, the historical navigation data are obtained, and the historical travel road condition of the planned navigation route is constructed in a simulated playback mode according to the historical navigation data;
it should be noted that, in the present embodiment, if there is no matching historical navigation data, execution is stopped, or the historical navigation data uploaded by other users is used for reference.
Step S104, prompting the historical travel road conditions.
It should be noted that, the prompting mode of this embodiment may adopt a mode of voice prompt and display screen display. It is easy to understand that the historical navigation data is directly and intuitively displayed to the user in a map mode, so that the user can know the road condition at the time clearly and easily, and the user experience is improved.
In a specific implementation process, the step of constructing the historical trip road condition of the planned navigation route according to the historical navigation data by using a mode of analog playback in this embodiment specifically includes the following steps: acquiring a track point array of the historical navigation data; preparing the track point number array into playback simulation data and periodically and dynamically loading the history navigation data; recording the interval speed between track point arrays according to the analog playback; judging the corresponding section road conditions according to the section speeds; and after the simulation playback is completed, integrating the road conditions of the plurality of intervals to form a new track row so as to obtain the history journey road conditions.
It should be understood that the track point array in this embodiment may be track points divided according to different rules along the navigation route, specifically may be divided according to driving environments, population density, traffic flow, or the like. Further, the dynamic loading period of the present embodiment may be 3 minutes, 4 minutes, 5 minutes, 8 minutes, 10 minutes, or the like.
It should be noted that, in the step of determining the corresponding section road condition according to the section speed in this embodiment, the method specifically includes the following steps: comparing the interval speed with a plurality of preset speed ranges to identify and obtain the speed range to which the interval speed belongs; and judging the corresponding section road conditions according to the speed range of the section speed, wherein different speed ranges define different section road conditions.
Specifically, the speed range of the present embodiment may be divided into 0 to 10 km/h, 10 to 20 km/h, 20 to 50 km/h, etc., and correspondingly, the road conditions of the section may be divided into congestion, creep, smoothness, etc.
It should be noted that, in order to solve the situation, the step of judging the corresponding section road condition according to the speed range to which the section speed belongs in this embodiment further includes the following steps: acquiring longitude and latitude information of the road condition of the section; judging environmental factors of the road conditions of the section according to the longitude and latitude information; and carrying out road condition correction on the road condition of the section according to the environmental factors, wherein the longitude and latitude information is marked into the new track column.
It should be noted that, in order to avoid personal data errors of the user, the present embodiment may refer to other user data of the network, and specifically, the step of constructing the historical trip road condition of the planned navigation route according to the historical navigation data by using a mode of analog playback in the present embodiment further includes the following processes: acquiring a plurality of reference journey road conditions corresponding to the historical journey road conditions provided by other users through a wireless network or a wired network; judging whether a plurality of reference travel road conditions are completely matched with the history travel road conditions; and if the road conditions are not completely matched, carrying out road condition correction on the historical travel road conditions according to a plurality of reference travel road conditions.
Furthermore, in this embodiment, the time may be added to the road condition for prompting, and the step of prompting the historical travel road condition further includes the following steps: acquiring the time consumption of the interval corresponding to the road condition of each interval; summing the time consumption of a plurality of intervals corresponding to the road conditions of the plurality of intervals to obtain travel time consumption; prompting the journey time and/or the interval time, wherein the interval time is marked into the new track column.
It is to be understood that the present embodiment may mark the longitude and latitude information and the interval time consumption into the new track column at the same time.
In this embodiment, the step of obtaining the planned navigation route of the user specifically includes the following steps: and acquiring the planned navigation route according to the starting point and the ending point input by the user, or processing the planned navigation route according to the rough route which is manually drawn by the user on the navigation map interface.
It should be noted that, in this embodiment, the historical navigation data may be collected via a mobile communication terminal and/or a vehicle-mounted device, and the collecting process includes the following steps:
shooting by using imaging equipment detachably arranged on a vehicle to obtain traffic live conditions;
collecting operation signals of a vehicle driver through various sensors detachably arranged on the vehicle, wherein the operation signals comprise at least three of time, steering wheel rotation vectors, GPS parameters, brakes, throttles, hand brakes, clutches, lamplight and hand brakes;
transmitting the traffic situation or the operation signal through a high-speed interconnection bus detachably arranged on the vehicle;
and processing the traffic condition and the operation signal by using a mobile communication terminal and/or a vehicle machine device, and carrying out one-to-one correspondence storage by combining the track points and time of the geographic position to obtain the historical navigation data.
The application can reproduce road conditions according to the historical data of the user under the application scenes of navigation and the like, is convenient for the user to recall and know the details of the road conditions at once, avoids unnecessary traffic road conditions and is convenient for the user.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of a navigation terminal according to the present application.
In this embodiment, a navigation terminal is provided, where the navigation terminal is configured with a processor 21, and the processor 21 is configured to execute program data, so that the navigation terminal implements the method for constructing a road condition based on historical navigation data as described in fig. 1 and the embodiment thereof.
It should be noted that, the navigation terminal in this embodiment may be a vehicle device, a mobile phone, a dedicated navigation apparatus, or the like.
Specifically, the processor 21 is configured to obtain a planned navigation route of the user;
the processor 21 is configured to search whether there is matching historical navigation data according to the planned navigation route;
the processor 21 is configured to obtain the history navigation data if there is the matched history navigation data, and construct a history journey road condition of the planned navigation route according to the history navigation data by using a mode of simulated playback;
it should be noted that, in the present embodiment, if there is no matching historical navigation data, execution is stopped, or the historical navigation data uploaded by other users is used for reference.
The processor 21 is configured to prompt the historical trip road condition.
It should be noted that, the prompting mode of this embodiment may adopt a mode of voice prompt and display screen display.
In a specific implementation process, the processor 21 is specifically configured to obtain the track point number sequence of the historical navigation data; preparing the track point number array into playback simulation data and periodically and dynamically loading the history navigation data; recording the interval speed between track point arrays according to the analog playback; judging the corresponding section road conditions according to the section speeds; and after the simulation playback is completed, integrating the road conditions of the plurality of intervals to form a new track row so as to obtain the history journey road conditions.
It should be understood that the track point array in this embodiment may be track points divided according to different rules along the navigation route, specifically may be divided according to driving environments, population density, traffic flow, or the like.
It should be noted that, in this embodiment, the processor 21 is specifically configured to compare the interval speed with a plurality of preset speed ranges, so as to identify and obtain a speed range to which the interval speed belongs; and judging the corresponding section road conditions according to the speed range of the section speed, wherein different speed ranges define different section road conditions.
Specifically, the speed range of the present embodiment may be divided into 0 to 10 km/h, 10 to 20 km/h, 20 to 50 km/h, etc., and correspondingly, the road conditions of the section may be divided into congestion, creep, smoothness, etc.
It should be noted that, in order to solve the situation, the processor 21 is specifically further configured to obtain latitude and longitude information of the road condition of the section; judging environmental factors of the road conditions of the section according to the longitude and latitude information; and carrying out road condition correction on the road condition of the section according to the environmental factors, wherein the longitude and latitude information is marked into the new track column.
It should be noted that, in order to avoid personal data errors of the user, the present embodiment may refer to other user data of the network, and specifically, the processor 21 in this embodiment is further configured to obtain, through a wireless network or a wired network, a plurality of reference trip road conditions corresponding to the historical trip road conditions provided by the other user; judging whether a plurality of reference travel road conditions are completely matched with the history travel road conditions; and if the road conditions are not completely matched, carrying out road condition correction on the historical travel road conditions according to a plurality of reference travel road conditions.
Furthermore, in this embodiment, the time may be added to the road condition and prompted, and the processor 21 is specifically further configured to obtain the interval time consumption corresponding to each interval road condition; summing the time consumption of a plurality of intervals corresponding to the road conditions of the plurality of intervals to obtain travel time consumption; prompting the journey time and/or the interval time, wherein the interval time is marked into the new track column.
It is to be understood that the present embodiment may mark the longitude and latitude information and the interval time consumption into the new track column at the same time.
In this embodiment, the processor 21 is specifically configured to obtain the planned navigation route according to a start point and an end point input by a user, or obtain the planned navigation route according to rough route processing of a user on a navigation map interface by hand.
It should be noted that the process of collecting the historical navigation data in this embodiment includes the following steps:
shooting by using imaging equipment detachably arranged on a vehicle to obtain traffic live conditions;
collecting operation signals of a vehicle driver through various sensors detachably arranged on the vehicle, wherein the operation signals comprise at least three of time, steering wheel rotation vectors, GPS parameters, brakes, throttles, hand brakes, clutches, lamplight and hand brakes;
transmitting the traffic situation or the operation signal through a high-speed interconnection bus detachably arranged on the vehicle;
and processing the traffic condition and the operation signal by using a mobile communication terminal and/or a vehicle machine device, and carrying out one-to-one correspondence storage by combining the track points and time of the geographic position to obtain the historical navigation data.
Referring next to fig. 3, fig. 3 is a schematic structural diagram of an embodiment of a vehicle according to the present application.
The vehicle according to the present embodiment is provided with the navigation terminal described above.
In fig. 3, the vehicle may further include, but is not limited to, an image pickup apparatus 31, a plurality of sensors 32, a processor 33, and a high-speed interconnection bus 34, the processor 33 being connected to the image pickup apparatus 31 and the plurality of sensors 32, respectively, through the high-speed interconnection bus 34.
The image capturing device 31 is detachably disposed on the vehicle, and is configured to capture a traffic situation; the plurality of sensors 32 are detachably arranged on the vehicle and are used for collecting operation signals of a driver of the vehicle, wherein the operation signals comprise at least three of time, steering wheel rotation vectors, GPS parameters, brakes, accelerator, hand brake, clutch, lamplight and hand brake; the high-speed interconnection bus 34 is detachably arranged on the vehicle and is used for transmitting the traffic condition or the operation signal; the processor 33 is detachably disposed on the vehicle, and is configured to process historical navigation data according to the traffic situation and the operation signal, in combination with the track point sequence and the time.
It should be noted that, the high-speed interconnection bus 34 in this embodiment includes a CAN (controller area network ) bus, an LVDS (low voltage differential signaling, low Voltage Differential Signal) bus, and an ethernet bus. In this way, the embodiment does not need to rely on a network and a cloud server, and can realize data transmission in some network-free environments, such as in places with poor signals, such as tunnels, suburbs and the like.
Furthermore, the mode of CAN bus is passed through in this embodiment, CAN be to the steering wheel rotation little, the condition such as brake dynamics is little carries out accurate discernment, avoids prior art to carry out action recognition through shooting the video and leads to the condition of error. It will also be appreciated that the digitization of the driving operation may be accomplished by way of the various sensors 32 in conjunction with the high speed interconnect bus 34.
In this embodiment, the image capturing apparatus 31 may be a vehicle recorder or a 360 degree camera of the vehicle, and the processor 33 may be an in-vehicle processor or a vehicle recorder processor.
The vehicle-mounted processor may be an MCU (micro controller unit) of the vehicle-mounted device.
It should be noted that, to achieve accurate combination and one-to-one correspondence of the traffic situation and the operation signals, the event data recorder and the processor 33 perform communication synchronization and time alignment through the high-speed interconnection bus 34.
In the application, the method and the method for constructing the road condition of the travel based on the historical navigation data of the vehicle CAN be used in a vehicle system with a vehicle machine or a vehicle TBOX, and CAN be connected to a CAN bus of the vehicle.
In one embodiment, the CAN bus may include three network channels can_1, can_2 and can_3, the vehicle may further be provided with an ethernet network channel, wherein the three CAN network channels may be connected to the ethernet network channel through two car networking gateways, for example, wherein the can_1 network channel includes a hybrid powertrain system, wherein the can_2 network channel includes an operation assurance system, wherein the can_3 network channel includes an electric dynamometer system, the ethernet network channel includes an advanced management system, the advanced management system includes a person-car-road simulation system connected to the ethernet network channel as a node and an integrated information acquisition unit, and the can_1 network channel, the can_2 network channel and the car networking gateway of the ethernet network channel may be integrated in the integrated information acquisition unit; the car networking gateway of the CAN_3 network channel and the Ethernet network channel CAN be integrated in a man-car-road simulation system.
Further, the nodes connected with the CAN_1 network channel are as follows: engine ECU (Electronic Control Unit ), motor MCU, BATTERY BMS (BATTERY MANAGEMENT SYSTEM ), automatic transmission TCU (Transmission Control Unit, automatic transmission control unit), and hybrid processor HCU (hybrid vehicle control unit); the nodes connected by the CAN_2 network channel are as follows: the system comprises a rack measurement and control system, an accelerator sensor group, a power analyzer, an instantaneous oil consumption instrument, a direct-current power supply cabinet, an engine water temperature control system, an engine oil temperature control system, a motor water temperature control system and an engine inter-cooling temperature control system; the nodes connected by the CAN_3 network channel are as follows: and the processor of the electric dynamometer.
The preferable rate of the CAN_1 network channel is 250Kbps, and J1939 protocol is adopted; the rate of the CAN_2 network channel is 500Kbps, and a CANopen protocol is adopted; the rate of the CAN_3 network channel is 1Mbps, and a CANopen protocol is adopted; the rate of the Ethernet channel is 10/100Mbps, and the TCP/IP protocol is adopted.
In one embodiment, the internet of vehicles gateway may be equipped with an IEEE802.3 interface, a DSPI interface, an eSCI interface, a CAN interface, an MLB interface, a LIN interface, and/or an I2C interface.
In one embodiment, for example, an IEEE802.3 interface may be used to connect to a wireless router to provide a WIFI network for the entire vehicle; a DSPI (provider manager component) interface for connecting a bluetooth adapter and an NFC (near field communication) adapter, which can provide a bluetooth connection and an NFC connection; the eSCI interface is used for connecting the 4G/5G module and communicating with the Internet; the CAN interface is used for connecting a vehicle CAN bus; the MLB interface is used for connecting an MOST (media oriented system transmission) bus in the vehicle, and the LIN interface is used for connecting an LIN (local area interconnection network) bus in the vehicle; the IC interface is used for connecting a DSRC (dedicated short range communication) module and a fingerprint identification module. In addition, the application can fuse different networks by mutually converting different protocols by adopting an MPC5668G chip.
In addition, the vehicle TBOX system, telematics BOX, abbreviated as on-board TBOX, or Telematics processor of the present embodiment.
The Telecommunications of the present embodiment is a combination of Telecommunications (Telecommunications) and information science (information), and is defined as a service system that provides information through a computer system built in a vehicle, a wireless communication technology, a satellite navigation device, and an internet technology that exchanges information such as text and voice. Simply speaking, the vehicle is connected to the Internet (Internet of vehicles system) through a wireless network, so that various information necessary for driving and living is provided for the vehicle owners.
In addition, the textics of the embodiment are the combination of a wireless communication technology, a satellite navigation system, a network communication technology and a vehicle-mounted computer, and when a fault occurs during the running of the vehicle, the remote vehicle diagnosis is carried out through the wireless communication connected with a service center, and the computer built on an engine can record the state of main parts of the vehicle and provide accurate fault positions and reasons for maintenance personnel at any time. In addition, the vehicle of the embodiment can also set electronic games and network applications in the rear seats. It is easy to understand that the embodiment provides services through the Telematics, so that a user can conveniently know traffic information and the parking space condition of a nearby parking lot, confirm the current position, and can also connect with a network server in home to timely know the running condition, the safety condition, the visiting condition of guests and the like of the electrical appliances in the home.
In one embodiment, the vehicle may further be provided with an ADAS (Advanced Driver Assistant System, advanced driving assistance system) that can collect the environmental data of the inside and outside of the vehicle at the first time by using the above sensors installed on the vehicle, and perform the technical processes of identifying, detecting and tracking static and dynamic objects, so that the driver can perceive the danger possibly occurring at the fastest time to draw attention and improve the safety. Correspondingly, the ADAS of the application can also use sensors such as radar, laser, ultrasonic and the like, can detect light, heat, pressure or other variables used for monitoring the state of the vehicle, and is usually positioned on front and rear bumpers, side view mirrors, inside a steering column or on a windshield of the vehicle. It is easy to see that various intelligent hardware used by the ADAS function can be connected to the Internet of vehicles system in a mode of Ethernet link to realize communication connection and interaction.
The host of the vehicle of the present embodiment may comprise suitable logic, circuitry, and/or code that may enable operation and/or functional manipulation of the five layers above the OSI model (Open System Interconnection, open communication system interconnection reference model). Thus, the host may generate and/or process data packets for network transmission and may also process data packets received from the network. At the same time, the host may provide services to the local user and/or one or more remote users or network nodes by executing corresponding instructions and/or running one or more application programs. In various embodiments of the application, the host may employ one or more security protocols.
In one embodiment, the network connection for implementing the internet of vehicles system may be a switch, which may have AVB functionality (Audio Video Bridging, meeting the standard set of IEEE 802.1), and/or include one or more unshielded twisted pair wires, each end may have an 8P8C module connector.
In a preferred embodiment, the internet of vehicles system may specifically include a body control module BCM, a power bus P-CAN, a body bus I-CAN, a combination meter CMIC, a chassis control device, and a body control device.
In this embodiment, the body control module BCM may integrate functions of the internet of vehicles gateway to perform signal conversion and message forwarding between different network segments, i.e. the power bus P-CAN and the body bus I-CAN, for example, if a processor hooked on the power bus needs to communicate with a processor hooked on the body bus I-CAN, signal conversion and forwarding between the two needs to be performed through the body control module BCM.
The power bus P-CAN and the vehicle body bus I-CAN are respectively connected with the vehicle body control module BCM.
The combined instrument CMIC is connected with the power bus P-CAN, and the combined instrument CMIC is connected with the vehicle body bus I-CAN. Preferably, the CMIC of the embodiment is connected to different buses, such as a power bus P-CAN and a vehicle body bus I-CAN, and when the CMIC needs to acquire information of a processor hung on any bus, signal conversion and message forwarding are not required by the vehicle body control module BCM, so that the gateway pressure CAN be reduced, the network load CAN be reduced, and the speed of the CMIC for acquiring information CAN be improved.
The chassis control device is connected with the power bus P-CAN. The vehicle body control device is connected with the vehicle body bus I-CAN. In some examples, the chassis control device and the vehicle body control device may respectively broadcast data such as information to the power bus P-CAN and the vehicle body bus I-CAN, so that devices such as other vehicle-mounted processors hung on the power bus P-CAN or the vehicle body bus I-CAN acquire the broadcast information, thereby realizing communication between vehicle-mounted devices such as different processors.
In addition, the vehicle networking system of the vehicle CAN use two CAN buses, namely a power bus P-CAN and a vehicle body bus I-CAN, a vehicle body control module BCM is used as a gateway, a combination instrument CMIC is connected with the power bus P-CAN and the vehicle body bus I-CAN, the operation that information of a chassis control device or a vehicle body control device is forwarded to the combination instrument CMIC through the gateway when the combination instrument CMIC is hung on one of the two buses in a traditional mode CAN be omitted, therefore, the pressure of the vehicle body control module BCM as the gateway is reduced, network load is reduced, and information of a plurality of buses, such as vehicle-mounted equipment hung on the power bus P-CAN and the vehicle body bus I-CAN, is more conveniently sent to the combination instrument CMIC to be displayed, and the real-time information transmission is strong.
The present application will be described in detail with reference to specific application examples thereof.
Such as how long the user wishes to specify that the weekend was blocked for Hangzhou? Where is the most blocked?
1. Acquiring a track point array of historical navigation data of a historical trip;
2. making the track point number array into playback simulation data;
3. in the simulation process, the historical navigation data is dynamically loaded, refreshed once every five minutes, and the speed and time of each track point are recorded;
4. after playback, forming a new track column, wherein the new track column contains interval speed, interval time consumption time, longitude and latitude information and the like;
5. traversing and judging a section speed value v, determining a point of which the section speed is in a certain speed range (such as 1< v < 10) as congestion, and determining a section (10 < v < 20) as creep;
6. counting sequences of a plurality of subintervals of the travel, and finding out a creep section, a congestion section and the like;
7. judging which period of time is longest according to the time interval of each section of congestion, and matching the geographic position of the track point according to the longitude and latitude of the track point;
8. and accumulating time consumption of each subinterval to obtain total congestion time, delay time and the like.
The present application is not limited to the above-mentioned embodiments, but is intended to be limited to the following embodiments, and any modifications, equivalent changes and variations in the above-mentioned embodiments can be made by those skilled in the art without departing from the scope of the present application.
Claims (8)
1. The travel road condition construction method based on the historical navigation data is characterized by comprising the following steps of:
acquiring a planned navigation route of a user;
searching whether the user has matched historical navigation data according to the planned navigation route;
if the user has the matched historical navigation data, the historical navigation data is obtained, and the historical journey road condition of the planned navigation route is constructed by using a simulated playback mode according to the historical navigation data;
acquiring a plurality of reference journey road conditions corresponding to the historical journey road conditions provided by other users through a wireless network or a wired network;
judging whether a plurality of reference travel road conditions are completely matched with the history travel road conditions;
if the road conditions are not completely matched, carrying out road condition correction on the historical travel road conditions according to a plurality of reference travel road conditions;
prompting the historical travel road conditions;
the step of constructing the historical travel road condition of the planned navigation route by using a mode of simulating playback according to the historical navigation data specifically comprises the following steps:
acquiring a track point array of the historical navigation data;
preparing the track point number array into playback simulation data and periodically and dynamically loading the history navigation data;
recording the interval speed between track point arrays according to the analog playback;
judging the corresponding section road conditions according to the section speeds;
and after the simulation playback is completed, integrating the road conditions of the plurality of intervals to form a new track row so as to obtain the history journey road conditions.
2. The method for constructing a journey road condition based on historical navigation data according to claim 1, wherein the step of judging the corresponding section road condition according to the section speed comprises the following steps:
comparing the interval speed with a plurality of preset speed ranges to identify and obtain the speed range to which the interval speed belongs;
and judging the corresponding section road conditions according to the speed range of the section speed, wherein different speed ranges define different section road conditions.
3. The method for constructing a trip road condition based on historical navigation data according to claim 2, wherein the step of judging the corresponding section road condition according to the speed range to which the section speed belongs further comprises the following steps:
acquiring longitude and latitude information of the road condition of the section;
judging environmental factors of the road conditions of the section according to the longitude and latitude information;
and carrying out road condition correction on the road condition of the section according to the environmental factors, wherein the longitude and latitude information is marked into the new track column.
4. The method for constructing a trip road condition based on historical navigation data according to claim 2, wherein the step of prompting the historical trip road condition further comprises the following steps:
acquiring the time consumption of the interval corresponding to the road condition of each interval;
summing the time consumption of a plurality of intervals corresponding to the road conditions of the plurality of intervals to obtain travel time consumption;
prompting the journey time and/or the interval time, wherein the interval time is marked into the new track column.
5. The method for constructing a trip road condition based on historical navigation data according to claim 2, wherein the step of obtaining the planned navigation route of the user comprises the following steps:
and acquiring the planned navigation route according to the starting point and the ending point input by the user, or processing the planned navigation route according to the rough route which is manually drawn by the user on the navigation map interface.
6. The method for constructing road conditions of journey based on historical navigation data according to claim 2, wherein the historical navigation data is collected via a mobile communication terminal and/or a vehicle-mounted device, and the process of collecting comprises the following steps:
shooting by using imaging equipment detachably arranged on a vehicle to obtain traffic live conditions;
collecting operation signals of a vehicle driver through various sensors detachably arranged on the vehicle, wherein the operation signals comprise at least three of time, steering wheel rotation vectors, GPS parameters, brakes, throttles, hand brakes, clutches, lamplight and hand brakes;
transmitting the traffic situation or the operation signal through a high-speed interconnection bus detachably arranged on the vehicle;
and processing the traffic condition and the operation signal by using a mobile communication terminal and/or a vehicle machine device, and carrying out one-to-one correspondence storage by combining the track points and time of the geographic position to obtain the historical navigation data.
7. A navigation terminal, characterized in that the navigation terminal is provided with a processor for executing program data to cause the navigation terminal to implement the history navigation data-based travel road condition construction method according to any one of claims 1 to 6.
8. A vehicle characterized by being provided with a navigation terminal according to claim 7.
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