CN111885500B - Road condition reminding method and device based on narrowband Internet of things and storage medium - Google Patents
Road condition reminding method and device based on narrowband Internet of things and storage medium Download PDFInfo
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- CN111885500B CN111885500B CN202010713067.5A CN202010713067A CN111885500B CN 111885500 B CN111885500 B CN 111885500B CN 202010713067 A CN202010713067 A CN 202010713067A CN 111885500 B CN111885500 B CN 111885500B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/024—Guidance services
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/09623—Systems involving the acquisition of information from passive traffic signs by means mounted on the vehicle
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0968—Systems involving transmission of navigation instructions to the vehicle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The application discloses a road condition reminding method, a road condition reminding device and a storage medium based on a narrow-band Internet of things, which are applied to a server, and the road condition reminding method comprises the following steps: the method comprises the steps of obtaining first position information sent by the terminal equipment, judging whether the terminal equipment is close to a dangerous area or not according to the first position information, if so, generating a road condition reminding instruction according to the first position information, and then sending the road condition reminding instruction to the terminal equipment. According to the application, the real-time communication based on the narrow-band Internet of things between the server and the terminal equipment is realized, the function of reminding the road condition of the driver in the accident-prone area is realized, the driver knows the road condition in advance, and then keeps alert and drives carefully, the driving safety is improved, and the occurrence of traffic accidents is reduced to a certain extent.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a road condition reminding method and device based on a narrowband Internet of things and a storage medium.
Background
With the demand for improving life convenience and life quality, the demand for driving and going out of a car by consumers is more and more frequent, such as daily commuting to work and self-driving to go out on holidays. For driving, driving safety is an important index.
In general, the occurrence of a traffic accident is greatly related to the road location and the geographical environment, in addition to the driving habit of the driver. For example, some roads are located in mountainous areas, and the geographic environment of some roads is rocky or icy, and if the driver is not familiar with the roads or does not know the road conditions because of first passing through the roads, the roads are easily not vigilant, and if the driver does not pay attention to the roads, the road is easily caused to a traffic accident.
Disclosure of Invention
The invention provides a road condition reminding method, a road condition reminding device and a storage medium based on a narrow-band Internet of things, and aims to solve the technical problem that the conventional navigation system cannot remind a driver of a road condition in an accident-prone area.
The technical scheme provided by the application is as follows:
the invention provides a road condition reminding method based on a narrowband Internet of things, which is applied to a server and comprises the following steps:
acquiring first position information sent by terminal equipment;
judging whether the terminal equipment is close to a dangerous area or not according to the first position information;
if yes, generating a road condition reminding instruction according to the first position information;
and sending the road condition reminding instruction to the terminal equipment so that the terminal equipment can remind the road condition of the user.
The application also provides a road condition reminding method based on the narrowband Internet of things, which is applied to vehicle-mounted equipment and comprises the following steps:
determining a vehicle running state during the running process of the vehicle;
if the vehicle running state indicates dangerous driving, acquiring current second position information of the vehicle-mounted equipment;
and generating an updating instruction carrying the second position information, and sending the updating instruction to a server so that the server updates a map database according to the second position information and reminds road conditions according to the updated map database.
The application also provides a road conditions reminding device based on narrowband thing networking, is applied to the server, road conditions reminding device includes:
the first acquisition module is used for acquiring first position information sent by the terminal equipment;
the judging module is used for judging whether the terminal equipment is close to a dangerous area or not according to the first position information;
the generating module is used for generating a road condition reminding instruction according to the first position information if the first position information is the first position information;
and the sending module is used for sending the road condition reminding instruction to the terminal equipment so as to enable the terminal equipment to remind the road condition of the user.
In the road condition reminding device provided by the application, still include:
the receiving module is used for receiving an updating instruction, and the updating instruction carries second position information;
the second acquisition module is used for acquiring the receiving times of the second position information and the geographic environment information corresponding to the second position information;
and the updating module is used for updating the dangerous areas in the map database according to the receiving times and the geographic environment information.
In the traffic condition reminding device provided by the application, the update module specifically includes:
the first determining submodule is used for determining the danger index of the second position information according to the geographic environment information;
the second determining submodule is used for determining a target threshold according to the danger index;
and the marking submodule is used for marking the area where the second position information is located in the map database as a dangerous area if the receiving times are greater than the target threshold.
In the traffic reminding device provided by the present application, the second determining submodule is specifically configured to:
if the danger index is larger than a preset value, taking a first threshold value as a target threshold value;
and if the danger index is smaller than or equal to a preset value, taking a second threshold value as a target threshold value, wherein the first threshold value is smaller than the second threshold value.
In the traffic condition reminding device provided by the application, the generation module is specifically configured to:
acquiring target position information of the terminal equipment;
determining an avoidance route according to the destination position information and the first position information;
and generating a road condition reminding instruction carrying the evaded route.
The application also provides a road condition reminding device based on narrowband thing networking, is applied to mobile unit, includes:
the vehicle driving state determining module is used for determining a vehicle driving state in the driving process of the vehicle;
the acquisition module is used for acquiring current second position information of the vehicle-mounted equipment when the vehicle running state indicates dangerous driving;
and the sending module is used for generating an updating instruction carrying the second position information, and sending the updating instruction to a server so as to enable the server to update a map database according to the second position information and remind the road condition according to the updated map database.
In the traffic condition reminding device provided by the application, the determining module is specifically configured to:
acquiring an acceleration value detected by an acceleration sensor in the vehicle-mounted equipment;
generating a vehicle driving state indicating dangerous driving when the acceleration value is greater than a third threshold value;
generating a vehicle driving state indicating safe driving when the acceleration value is less than or equal to a third threshold value.
The application also provides a computer-readable storage medium, wherein a plurality of instructions are stored in the storage medium, and the instructions are suitable for being loaded by a processor to execute any one of the above-mentioned road condition reminding methods.
The beneficial effect of this application does: the application discloses a road condition reminding method, a road condition reminding device and a storage medium based on a narrow-band Internet of things, which are applied to a server, and the road condition reminding method comprises the following steps: the method comprises the steps of obtaining first position information sent by the terminal equipment, judging whether the terminal equipment is close to a dangerous area or not according to the first position information, if so, generating a road condition reminding instruction according to the first position information, and then sending the road condition reminding instruction to the terminal equipment. According to the application, the real-time communication based on the narrow-band Internet of things between the server and the terminal equipment is realized, the function of reminding the road condition of the driver in the accident-prone area is realized, the driver knows the road condition in advance, and then keeps alert and drives carefully, the driving safety is improved, and the occurrence of traffic accidents is reduced to a certain extent.
Drawings
The technical scheme and other beneficial effects of the invention are obvious from the detailed description of the specific embodiments of the invention in combination with the attached drawings.
Fig. 1 is a schematic view of an application scenario of a road condition reminding method according to an embodiment of the present application.
Fig. 2 is a schematic flow chart of a road condition reminding method according to an embodiment of the present application.
Fig. 3 is a schematic flowchart of step S103 according to an embodiment of the present application.
Fig. 4 is another schematic flow chart of the road condition reminding method according to the embodiment of the present application.
Fig. 5 is another schematic flow chart of the road condition reminding method according to the embodiment of the present application.
Fig. 6 is a schematic flowchart of interaction between a server and a terminal device according to an embodiment of the present application.
Fig. 7 is a schematic flowchart illustrating interaction between a server and a vehicle-mounted device according to an embodiment of the present application.
Fig. 8 is a schematic structural diagram of a road condition reminding device according to an embodiment of the present application.
Fig. 9 is another schematic structural diagram of the road condition reminding device according to the embodiment of the present application.
Fig. 10 is a schematic structural diagram of a server according to an embodiment of the present application.
Fig. 11 is a schematic structural diagram of an in-vehicle device provided in an embodiment of the present application.
Fig. 12 is another schematic structural diagram of the vehicle-mounted device according to the embodiment of the present application.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. In the drawings, elements having similar structures are denoted by the same reference numerals. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the application provides a road condition reminding method and device based on a narrow-band Internet of things and a storage medium.
Referring to fig. 1, fig. 1 provides an application scenario diagram of a traffic reminding system based on a narrowband internet of things, where the traffic reminding system may include a server, a vehicle-mounted device, and a terminal device, and the server may be a cloud platform server.
Specifically, the vehicle-mounted device and the terminal device interact with the server.
The terminal device is used for sending the first position information to the terminal device, receiving the road condition reminding instruction sent by the server, and then carrying out road condition reminding on the user according to the road condition reminding instruction.
The vehicle-mounted equipment is used for sending an updating instruction carrying the second position information to the server so that the server can update the map database conveniently.
The server is used for receiving the first position information sent by the terminal equipment, generating a road condition reminding instruction according to the first position information, then sending the road condition reminding instruction to the terminal equipment, receiving an updating instruction sent by the vehicle-mounted equipment, and then updating the map database.
The Narrow-Band Internet of Things (NB-IoT) is an important branch of the Internet of everything, is constructed in a cellular network, consumes only a bandwidth of about 180kHz, and can be directly deployed in a GSM network, a UMTS network or an LTE network, so as to reduce deployment cost and realize smooth upgrade. The server can be a physical host in the cloud platform, and the physical host is communicated with at least one terminal device and processes and transmits communication data.
Referring to fig. 2, fig. 2 is a schematic flow chart of a road condition reminding method based on a narrowband internet of things according to an embodiment of the present application, and as shown in fig. 2, the road condition reminding method is applied to a server, and a specific flow may be as follows:
s101, first position information sent by the terminal equipment is obtained.
Specifically, terminal equipment can be mobile phones, intelligent wearing equipment and the like that the driver hand-carries, and this terminal equipment has locate function and interactive function, acquires first positional information through locate function, realizes the interaction with the driver through interactive function to realize road conditions and remind.
In this implementation, the server may obtain the first location information sent by the terminal device at regular time, or may obtain the first location information sent by the terminal device in real time.
In some embodiments, the terminal device may include a road condition reminding function, the road condition reminding function is selected by a user to be turned on, and the terminal device may send the first location information to the server only when the road condition reminding function is turned on. For example, in the case where the user does not drive, the user selects to turn off the road condition reminding function, and in the case where the user drives, the user may selectively turn on the road condition reminding function, for example, when the user drives on a familiar road, the user may not turn on the road condition reminding function, and only when the user goes out of the way or drives on an unfamiliar road, the user may turn on the open road condition reminding function.
S102, judging whether the terminal equipment is close to the dangerous area or not according to the first position information, if so, executing a step S103, and if not, executing a step S101.
Specifically, the server stores a map database in which some dangerous areas are marked, and determines whether the first location information is close to the dangerous area by determining a distance between the first location information and the dangerous area, for example, when the distance between the first location information and the dangerous area is less than 3km, it is determined that the terminal device is close to the dangerous area.
And S103, generating a road condition reminding instruction according to the first position information.
In some embodiments, when the first location information is close to the dangerous area, the server may generate a road condition reminding instruction with a reminding voice for sending to the terminal device in a subsequent step to remind the user of the road condition. Meanwhile, the server can also generate a road condition reminding instruction with a vibration instruction, and the vibration instruction is used for controlling a built-in motor in the terminal equipment to generate a specific frequency so as to remind the user of the road condition.
As shown in fig. 3, fig. 3 is a schematic flowchart of S103 provided in this embodiment, and in some embodiments, step S103 may specifically include:
and S1031, acquiring destination position information of the terminal equipment.
Specifically, when the terminal device is a mobile phone, a driver is required to select a destination through navigation software or other map software, and the server determines destination position information by acquiring the destination selected by the user on the software.
In some embodiments, when the terminal device starts the road condition reminding function, the user is required to select the destination location information.
In this embodiment, the terminal device may also start the voice monitoring function while starting the road condition reminding function, and automatically generate the destination location information if a keyword is monitored within a preset time, for example, the keyword may be a go XXX, where "XXX" is location information.
S1032, determining an avoidance route according to the destination position information and the first position information.
Specifically, a plurality of routes avoiding the first location information may be determined according to the destination location information, and meanwhile, routes not close to other dangerous areas in other routes are determined, and then, an optimal route is selected by integrating congestion conditions, the length of the route, and other conditions, and the optimal route is determined as an avoidance route.
S1033, generating a road condition reminding instruction carrying the evaded route.
Specifically, the road condition reminding instruction is used for sending to the terminal device in the subsequent steps to remind the user, the road condition reminding instruction carrying the avoiding route is generated, and the user can select the avoiding route to drive, so that the dangerous area is avoided.
And S104, sending a road condition reminding instruction to the terminal equipment.
Specifically, the road condition reminding instruction is sent to the terminal device, so that the terminal device performs a series of reminding operations to remind the driver of the road condition, and the road condition reminding instruction can carry operation information such as voice information and vibration and other evasive route information.
Referring to fig. 4, fig. 4 is another schematic flow chart of the road condition reminding method according to the embodiment of the present application, and as shown in fig. 4, the present application may further include:
and S105, receiving an updating instruction, wherein the updating instruction carries second position information.
Specifically, the update instruction is sent to the server by the vehicle-mounted device, and the server determines whether to update part of data in the map database according to the update instruction.
And S106, acquiring the receiving times of the second position information and the geographic environment information corresponding to the second position information.
Specifically, the number of times of reception of the second position information may be stored in the map database, and the number of times of reception may be added once every time the second position information is received.
Meanwhile, the geographic environment information corresponding to the second location information may also be stored in the map database, for example, the longitude and latitude information of the location, the road complexity information, and whether the location is an expressway, and the geographic environment information plays a crucial role in determining the risk index of the location in the subsequent steps, and thus determines whether the subsequent updating operation is performed.
And S107, determining the danger index of the second position information according to the geographic environment information.
Specifically, the risk index may be represented by a number, for example, ranging from zero to ten, and when the geographical environment information indicates that the road condition is not complicated and is not a special road such as a viaduct, the risk index may be determined to be 1, that is, a low risk area, and the risk index is used to determine the target threshold in the subsequent step.
And S108, determining a target threshold according to the danger index.
Specifically, the relationship between the risk index and the target threshold is inversely proportional, if the terrain and the topography of the place are complex, the greater the possibility of traffic accidents, the higher the risk index, the lower the threshold for marking the area in which the place is located as the dangerous area, and the target threshold is an important basis for whether the place is subsequently marked as the dangerous area, and only when the number of times of reception is greater than the target threshold, the area carried by the place is marked as the dangerous area, and therefore, the higher the risk index, the lower the target threshold is.
In this embodiment, step S108 may include:
if the danger index is larger than a preset value, taking a first threshold value as a target threshold value;
and if the danger index is smaller than or equal to the preset value, taking a second threshold value as a target threshold value, wherein the first threshold value is smaller than the second threshold value.
In this embodiment, the preset value may be 7, and when the risk index is greater than 7, it may be determined that the location is a high risk area, and the target threshold may be set to a smaller value accordingly; when the risk index is less than 7, it can be determined that the position is a low risk area or a medium risk area, and the target threshold value can be set to a relatively large value, so that the updating operation is more reasonable.
And S109, if the receiving times are larger than the target threshold value, marking the area where the second position information is located in the map database as a dangerous area.
Specifically, the update instruction is triggered and sent to the server only when the driver has dangerous driving behaviors such as sudden braking or collision, so that the receiving times represent the times of accidents at the position, and if the receiving times are larger than the target threshold value, the area where the second position information is located is marked as a dangerous area.
Further, the area may be determined by drawing a circle with the second location information as the center, and the area is further determined as a dangerous area, and it should be noted that the radius of the circular area is not limited herein, depending on the road complexity and other factors.
As can be seen from the above, the road condition reminding method provided in this embodiment is applied to a server, and includes: the method comprises the steps of obtaining first position information sent by the terminal equipment, judging whether the terminal equipment is close to a dangerous area or not according to the first position information, if so, generating a road condition reminding instruction according to the first position information, and then sending the road condition reminding instruction to the terminal equipment. According to the application, the real-time communication between the server and the terminal equipment based on the narrowband Internet of things is realized, the function of reminding the road condition of the driver in the accident high-occurrence area is realized, the driver knows the road condition in advance, and then the driver keeps alert and drives carefully, the driving safety is improved, and the occurrence of traffic accidents is reduced to a certain extent.
According to the method described in the above embodiment, the present application will be further described from the perspective of an in-vehicle device, which may be a terminal device such as an in-vehicle terminal.
As shown in fig. 5, fig. 5 is another schematic flow diagram of the traffic condition reminding method based on the narrowband internet of things provided in the embodiment of the present application, and the traffic condition reminding method is applied to a vehicle-mounted device, and the specific flow may be as follows:
s201, in the running process of the vehicle, determining the running state of the vehicle.
In this embodiment, step S201 may specifically include:
acquiring an acceleration value detected by an acceleration sensor in vehicle-mounted equipment;
generating a vehicle driving state indicating dangerous driving when the acceleration value is greater than a third threshold value;
when the acceleration value is less than or equal to the third threshold value, a vehicle travel state indicating safe driving is generated.
Specifically, when the vehicle-mounted device performs a sudden braking or a severe collision, a large acceleration is generated in the vehicle traveling direction, and therefore, the third threshold value is used as a threshold value to distinguish whether the vehicle-mounted device is normally accelerated during safe driving or accelerated during dangerous driving.
S202, when the vehicle running state indicates dangerous driving, current second position information of the vehicle-mounted equipment is acquired.
Specifically, when the vehicle driving state indicates dangerous driving, there is a high possibility that a vehicle has a traffic accident such as a collision, and therefore, the current second position information is acquired, used for generating an update instruction in a subsequent step, and sent to the server, so that the server performs an update operation.
And S203, generating an updating instruction for receiving the second position information, and sending the updating instruction to the server.
Specifically, an update instruction is sent to the server, so that the server updates the map database according to the second position information, and performs road condition reminding according to the updated map database.
Therefore, the road condition reminding method provided by the embodiment is applied to the vehicle-mounted device, the vehicle running state is determined in the vehicle running process, the current second position information of the vehicle-mounted device is acquired when the vehicle running state indicates dangerous driving, then the current second position information is converted into the updating instruction carrying the second position information, and the updating instruction is sent to the server, so that the server updates the map database, the accuracy of the map database is enhanced, and the accuracy of the judgment operation based on the map database in the server is improved.
The following will briefly introduce the flow of the road condition reminding method by taking the application of the road condition reminding method to a server, a vehicle-mounted device and a terminal device as an example.
Please refer to fig. 6, fig. 6 is a schematic diagram illustrating a process of interaction between a server and a terminal device according to an embodiment of the present disclosure, where the terminal device sends first location information to the server, the server receives the first location information sent by the terminal device and then determines whether the first location information is close to a dangerous area in a map database, if the first location information is close to the dangerous area, a road condition reminding instruction is generated according to the first location information and sent to the terminal device, and the terminal device receives the road condition reminding instruction and then reminds a user of a road condition according to the road condition reminding instruction.
Referring to fig. 7, fig. 7 is a schematic flowchart of interaction between a server and a vehicle-mounted device according to an embodiment of the present disclosure, in a driving process of a vehicle, an acceleration value detected by an acceleration sensor in the vehicle-mounted device is obtained, when the acceleration value is greater than a third threshold, a driving state of the vehicle in dangerous driving is generated, at this time, second position information of the vehicle-mounted device is obtained, an update instruction carrying the second position information is generated, then, the update instruction is sent to the server, and when the server receives the update instruction, the number of times of receiving the second position information and geographic environment information corresponding to the second position information are obtained, and a dangerous area in a map database is updated according to the number of times of receiving and the geographic environment.
According to the method described in the above embodiment, the embodiment will be further described from the perspective of the road condition reminding device, and the road condition reminding device may be specifically implemented as an independent entity, or may be integrated in a server.
Referring to fig. 8, fig. 8 specifically describes the traffic condition reminding device provided in the embodiment of the present application, which is applied to a server, and the traffic condition reminding device may include: the first acquiring module 10, the judging module 20, the generating module 30 and the sending module 40, wherein:
(1) First acquisition module 10
The first obtaining module 10 is configured to obtain first location information sent by a terminal device.
Specifically, terminal equipment can be for cell-phone, the intelligent wearing equipment that the driver hand-carried etc. and this terminal equipment has locate function and interactive function, acquires first positional information through locate function, realizes the interaction with the driver through interactive function to realize the road conditions and remind.
In this implementation, the server may obtain the first location information sent by the terminal device at regular time, or may obtain the first location information sent by the terminal device in real time.
(2) Judging module 20
And the judging module 20 is configured to judge whether the terminal device is close to the dangerous area according to the first position information.
Specifically, the server stores a map database in which some dangerous areas are marked, and determines whether the first location information is close to the dangerous area by determining a distance between the first location information and the dangerous area, for example, when the distance between the first location information and the dangerous area is less than 3km, it is determined that the terminal device is close to the dangerous area.
(3) Generation module 30
And the generating module 30 is configured to generate a road condition prompting instruction according to the first location information if the judging module judges that the terminal device is close to the dangerous area.
Specifically, the server stores a map database in which some dangerous areas are marked, and determines whether the first location information is close to the dangerous area by determining a distance between the first location information and the dangerous area, for example, when the distance between the first location information and the dangerous area is less than 3km, it is determined that the terminal device is close to the dangerous area.
In some embodiments, the generating module 30 may be specifically configured to:
acquiring target position information of terminal equipment;
determining an avoidance route according to the target position information and the first position information;
and generating a road condition reminding instruction carrying the evaded route.
Specifically, when the terminal device is a mobile phone, a driver is required to select a destination through navigation software or other map software, and the server determines destination position information by acquiring the destination selected by the user on the software.
Further, a plurality of routes avoiding the first position information can be determined according to the target position information, meanwhile, routes which are not close to a dangerous area in other routes are determined, then, an optimal route is selected by integrating congestion conditions, the length of the route and other conditions, and the optimal route is determined as an avoidance route.
The road condition reminding instruction is used for being sent to the terminal equipment in the subsequent steps so as to remind a user, the road condition reminding instruction carrying the avoiding route is generated, and the user can select the avoiding route to avoid passing through a dangerous area.
(4) Sending module 40
The sending module 40 is configured to send a road condition reminding instruction to the terminal device, so that the terminal device carries out road condition reminding on the user.
Specifically, the road condition reminding instruction is sent to the terminal device, so that the terminal device performs a series of reminding operations to remind a driver of the road condition, and the road condition reminding instruction can carry operation information such as voice information and vibration and other route information.
In some embodiments, the road condition reminding device may further include a receiving module 50, a second obtaining module 60, and an updating module 70:
the receiving module 50 is configured to receive an update instruction, where the update instruction carries the second location information.
Specifically, the update instruction is sent to the server by the vehicle-mounted device, and the server determines whether to update part of data in the map database according to the update instruction.
A second obtaining module 60, configured to obtain the receiving times of the second location information and geographic environment information corresponding to the second location information;
specifically, the number of times of reception of the second position information may be stored in the map database, and the number of times of reception may be added once every time the second position information is received.
Meanwhile, the geographic environment information corresponding to the second location information may also be stored in the map database, for example, latitude and longitude information of the location, road complexity information, and information of whether the location is an expressway, and the geographic environment information is a crucial step for the subsequent step to determine the risk index of the location, that is, whether the subsequent updating operation is performed is determined.
And the updating module 70 is used for updating the dangerous areas in the map database according to the receiving times and the geographic environment information.
Specifically, the updating module 70 may include:
a first determining submodule 71 (not shown in the figure) for determining the risk index of the second location information based on the geographical environment information.
Specifically, the risk index may be expressed in a number, for example, ranging from zero to ten, and for example, when the geographical environment information indicates that the road condition is not complicated and is not a special road such as a viaduct, the risk index may be determined to be 1, that is, a low risk area. The risk index is used in subsequent steps to determine the target threshold.
A second determination submodule 72 (not shown) determines a target threshold value from the risk index.
Specifically, the second determination submodule 73 is specifically configured to:
if the danger index is larger than a preset value, taking a first threshold value as a target threshold value;
and if the danger index is smaller than or equal to the preset value, taking a second threshold value as a target threshold value, wherein the first threshold value is smaller than the second threshold value.
In this embodiment, the preset value may be 7, and when the risk index is greater than 7, it may be determined that the location is a high risk area, and the target threshold may be set to a smaller value accordingly; when the risk index is less than 7, it can be determined that the position is a low risk area or a medium risk area, and the target threshold value can be set to a relatively large value, so that the updating operation is more reasonable.
The marking sub-module 73 (not shown) is configured to mark the area in which the second location information is located in the map data as a dangerous area if the number of times of reception is greater than the target threshold.
Specifically, the update instruction is triggered and sent to the server only when the driver has dangerous driving behaviors such as sudden braking or collision, so that the receiving times represent the times of accidents at the position, and if the receiving times are larger than the target threshold value, the area where the second position information is located is marked as a dangerous area.
Further, the area may be determined by drawing a circle with the second location information as the center, and the area is further determined as a dangerous area, and it should be noted that the radius of the circular area is not limited herein, depending on the road complexity and other factors.
In specific implementation, the above modules may be implemented as independent entities, or may be combined arbitrarily, and implemented as the same or several entities, and specific implementations of the above modules may refer to the foregoing method embodiment, which is not described herein again.
As can be seen from the above, the road condition reminding device provided in this embodiment is applied to a server, and includes the first obtaining module 10, the determining module 20, the generating module 30, and the sending module 40, and is configured to: the first obtaining module 10 obtains first location information sent by the terminal device, then the judging module 20 judges whether the terminal device is close to a dangerous area according to the first location information, if so, the generating module 30 generates a road condition reminding device according to the first location information, and then the sending module 40 sends the road condition reminding device to the terminal device. According to the application, the real-time communication between the server and the terminal equipment based on the narrowband Internet of things is realized, the function of reminding the road condition of the driver in the accident high-occurrence area is realized, the driver knows the road condition in advance, and then the driver keeps alert and drives carefully, the driving safety is improved, and the occurrence of traffic accidents is reduced to a certain extent.
According to the method described in the above embodiment, the embodiment will be further described from the perspective of a road condition reminding device, which may be specifically implemented as an independent entity or integrated in a vehicle-mounted device.
Referring to fig. 9, fig. 9 specifically describes the road condition reminding device provided in the embodiment of the present application, which is applied to a vehicle-mounted device, and the road condition reminding device may include: a determining module 80, an obtaining module 90 and a sending module 100, wherein:
(A) Determination module 80
The determining module 80 is used for determining the vehicle running state during the running process of the vehicle.
In a specific embodiment, the determining module 80 may specifically be configured to:
acquiring an acceleration value detected by an acceleration sensor in vehicle-mounted equipment;
generating a vehicle driving state indicating dangerous driving when the acceleration value is greater than a third threshold value;
when the acceleration value is less than or equal to the third threshold value, a vehicle travel state indicating safe driving is generated.
Specifically, when the vehicle-mounted device performs a sudden braking or a severe collision, a large acceleration is generated in the vehicle traveling direction, and therefore whether the vehicle-mounted device is normally accelerated in safe driving or is accelerated in dangerous driving is discriminated using the third threshold value as a threshold value.
(B) Acquisition module 90
And the obtaining module 90 is configured to obtain current second position information of the vehicle-mounted device if the vehicle driving state indicates dangerous driving.
Specifically, when the vehicle driving state indicates dangerous driving, there is a high possibility that a vehicle has a traffic accident such as a collision, and therefore, the current second position information is acquired, used for generating an update instruction in a subsequent step, and sent to the server, so that the server performs an update operation.
(C) Transmission module 100
The sending module 100 generates an update instruction carrying the second position information, and sends the update instruction to the server, so that the server updates the map database according to the second position information, and reminds the road condition according to the updated map database.
Specifically, an update instruction is sent to the server, so that the server updates the map database according to the second position information, and performs road condition reminding according to the updated map database.
As can be seen from the above, the road condition reminding device provided in this embodiment is applied to the vehicle-mounted device, and the determining module 80 determines the vehicle driving state during the driving process of the vehicle, and if the vehicle driving state indicates dangerous driving, the obtaining module 90 obtains the current second position information of the vehicle-mounted device, and then the sending module 100 generates the update instruction carrying the second position information, and sends the update instruction to the server, so that the server updates the map database, the accuracy of the map database is enhanced, and the accuracy of the determination operation performed on the basis of the map database in the server is further improved.
Accordingly, an embodiment of the present application further provides a server, as shown in fig. 10, which shows a schematic structural diagram of a server according to an embodiment of the present application, and specifically:
the server may include components such as a processor 401 of one or more processing cores, memory 402 of one or more computer-readable storage media, radio Frequency (RF) circuitry 403, a power supply 404, an input unit 405, and a display unit 406. Those skilled in the art will appreciate that the server architecture shown in FIG. 10 is not meant to be limiting, and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. Wherein:
the processor 401 is a control center of the server, connects various parts of the entire server using various interfaces and lines, and performs various functions of the server and processes data by running or executing software programs and/or modules stored in the memory 402 and calling data stored in the memory 402, thereby performing overall monitoring of the server. Optionally, processor 401 may include one or more processing cores; preferably, the processor 401 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 401.
The memory 402 may be used to store software programs and modules, and the processor 401 executes various functional applications and data processing by operating the software programs and modules stored in the memory 402. The memory 402 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created according to the use of the server, and the like. Further, the memory 402 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 402 may also include a memory controller to provide the processor 401 access to the memory 402.
The RF circuit 403 may be used for receiving and transmitting signals during information transmission and reception, and in particular, for receiving downlink information of a base station and then processing the received downlink information by the one or more processors 401; in addition, data relating to uplink is transmitted to the base station. In general, the RF circuitry 403 includes, but is not limited to, an antenna, at least one Amplifier, a tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuitry 403 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communications (GSM), general Packet Radio Service (GPRS), code Division Multiple Access (CDMA), wideband Code Division Multiple Access (WCDMA), long Term Evolution (LTE), email, short Message Service (SMS), and the like.
The server also includes a power supply 404 (e.g., a battery) for powering the various components, and preferably, the power supply 404 is logically connected to the processor 401 via a power management system, so that functions such as managing charging, discharging, and power consumption are performed via the power management system. The power supply 404 may also include any component of one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.
The server may further include an input unit 405, and the input unit 405 may be used to receive input numeric or character information and generate a keyboard, mouse, joystick, optical or trackball signal input in relation to user settings and function control. Specifically, in one particular embodiment, input unit 405 may include a touch-sensitive surface as well as other input devices. The touch-sensitive surface, also referred to as a touch display screen or a touch pad, may collect touch operations by a user (such as operations by the user on or near the touch-sensitive surface using a finger, a stylus, or any other suitable object or attachment) thereon or nearby, and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface may comprise two parts, a touch detection means and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 401, and can receive and execute commands sent by the processor 401. In addition, touch sensitive surfaces may be implemented using various types of resistive, capacitive, infrared, and surface acoustic waves. The input unit 405 may include other input devices in addition to the touch-sensitive surface. In particular, other input devices may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The server may also include a display unit 406, and the display unit 406 may be used to display information input by or provided to the user as well as various graphical user interfaces of the server, which may be made up of graphics, text, icons, video, and any combination thereof. The Display unit 406 may include a Display panel, and optionally, the Display panel may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch-sensitive surface may overlay the display panel, and when a touch operation is detected on or near the touch-sensitive surface, the touch operation is transmitted to the processor 401 to determine the type of the touch event, and then the processor 401 provides a corresponding visual output on the display panel according to the type of the touch event. Although in FIG. 10 the touch sensitive surface and the display panel are implemented as two separate components for input and output functions, in some embodiments the touch sensitive surface may be integrated with the display panel for input and output functions.
Although not shown, the server may further include a camera, a bluetooth module, etc., which will not be described herein. Specifically, in this embodiment, the processor 401 in the server loads the executable file corresponding to the process of one or more application programs into the memory 402 according to the following instructions, and the processor 401 runs the application program stored in the memory 402, thereby implementing various functions as follows:
acquiring a first position message sent by terminal equipment;
judging whether the terminal equipment is close to a dangerous area or not according to the first position message;
if yes, generating a road condition reminding instruction according to the first position information;
and sending the road condition reminding instruction to the terminal equipment so that the terminal equipment can remind the user of the road condition.
The server may implement the effective effect that any one of the password resetting devices provided in the embodiments of the present application can implement, which is described in detail in the foregoing embodiments and is not described herein again.
In addition, the embodiment of the application also provides vehicle-mounted equipment. As shown in fig. 11, the in-vehicle apparatus 500 includes a processor 501 and a memory 502. The processor 501 is electrically connected to the memory 502.
The processor 501 is a control center of the in-vehicle apparatus 500, connects various parts of the entire in-vehicle apparatus with various interfaces and lines, and performs various functions of the in-vehicle apparatus and processes data by running or loading an application stored in the memory 502 and calling data stored in the memory 502, thereby performing overall monitoring of the in-vehicle apparatus.
Fig. 12 shows a specific structural block diagram of the vehicle-mounted device provided in the embodiment of the present application, and the vehicle-mounted device 300 may be used to implement the road condition reminding method provided in the embodiment.
The RF circuit 310 is used for receiving and transmitting electromagnetic waves, and performs interconversion between the electromagnetic waves and electrical signals, thereby communicating with a communication network or other devices. RF circuitry 310 may include various existing circuit elements for performing these functions, such as antennas, radio frequency transceivers, digital signal processors, encryption/decryption chips, memory, and so forth. RF circuit 310 may communicate with various networks such as the internet, an intranet, a wireless network, or with other devices over a wireless network. The wireless network may comprise a cellular telephone network, and may use the following communication standards, protocols, and technologies: global System for Mobile Communications (GSM), universal Mobile Telecommunications System (UMTS), or Long Term Evolution (LTE).
The memory 320 may be configured to store software programs and modules, such as the traffic warning method and the corresponding program instructions/modules in the above embodiments, and the processor 380 executes various functional applications and data processing by operating the software programs and modules stored in the memory 320, so as to implement a communication data saving function. The memory 320 may include high speed random access memory and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 320 may further include memory located remotely from the processor 380, which may be connected to the in-vehicle device 300 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input unit 330 may be used to receive input numeric or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control. In particular, the input unit 330 may include a touch-sensitive surface 331 as well as other input devices 332. The touch-sensitive surface 331, also referred to as a touch screen or touch pad, may collect touch operations by a user on or near the touch-sensitive surface 331 (e.g., operations by a user on or near the touch-sensitive surface 331 using a finger, a stylus, or any other suitable object or attachment), and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface 331 may comprise two parts, a touch detection means and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 380, and can receive and execute commands sent by the processor 380. In addition, the touch-sensitive surface 331 may be implemented using various types of resistive, capacitive, infrared, and surface acoustic waves. The input unit 330 may comprise other input devices 332 in addition to the touch sensitive surface 331. In particular, other input devices 332 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 340 may be used to display information input by or provided to the user and various graphic user interfaces of the in-vehicle apparatus 300, which may be configured by graphics, text, icons, video, and any combination thereof. The Display unit 340 may include a Display panel 341, and optionally, the Display panel 341 may be configured in the form of an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), or the like. Further, touch-sensitive surface 331 may overlay display panel 341, and when touch-sensitive surface 331 detects a touch operation thereon or thereabout, communicate to processor 380 to determine the type of touch event, and processor 380 then provides a corresponding visual output on display panel 341 in accordance with the type of touch event. Although in FIG. 7, touch-sensitive surface 331 and display panel 341 are implemented as two separate components for input and output functions, in some embodiments, touch-sensitive surface 331 and display panel 341 may be integrated for input and output functions.
The in-vehicle device 300 may also include at least one sensor 350, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor for adjusting the brightness of the display panel 341 according to the brightness of ambient light. As one type of motion sensor, a gravitational acceleration sensor may detect the magnitude of acceleration in various directions (generally, three axes); as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which may be further configured in the in-vehicle device 300, detailed descriptions thereof are omitted.
The processor 380 is a control center of the in-vehicle apparatus 300, connects various parts of the entire in-vehicle apparatus 300 by various interfaces and lines, and performs various functions of the in-vehicle apparatus 300 and processes data by running or executing software programs and/or modules stored in the memory 320 and calling data stored in the memory 320, thereby performing overall monitoring of the in-vehicle apparatus 300. Optionally, processor 380 may include one or more processing cores; in some embodiments, processor 380 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 380.
The vehicle device 300 further includes a power source 390 (e.g., a battery) for providing power to various components, which may be logically connected to the processor 380 via a power management system in some embodiments, so as to manage charging, discharging, and power consumption via the power management system. The power supply 190 may also include any component including one or more of a dc or ac power source, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.
Specifically, in this embodiment, the display unit of the vehicle-mounted device is a touch screen display, the vehicle-mounted device further includes a memory, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs include instructions for:
determining a vehicle running state during the running process of the vehicle;
if the vehicle running state indicates dangerous driving, acquiring current second position information of the vehicle-mounted equipment;
and generating an updating instruction carrying the second position information, and sending the updating instruction to the server so that the server updates the map database according to the second position information and reminds the road condition according to the updated map database.
In specific implementation, the above modules may be implemented as independent entities, or may be combined arbitrarily, and implemented as the same or several entities, and specific implementations of the above modules may refer to the foregoing method embodiment, which is not described herein again.
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions or by associated hardware controlled by the instructions, which may be stored in a computer readable storage medium and loaded and executed by a processor. To this end, the embodiment of the application provides a storage medium, which comprises executable instructions of an on-board device. When executed by the vehicle-mounted device processor, the vehicle-mounted device executable instruction executes the steps of any one of the road condition reminding methods provided by the embodiments of the present application.
Wherein the storage medium may include: read Only Memory (ROM), random Access Memory (RAM), magnetic or optical disks, and the like.
Since the instructions stored in the storage medium can execute the steps in any road condition reminding method provided by the embodiment of the present invention, the beneficial effects that can be achieved by any road condition reminding method provided by the embodiment of the present invention can be achieved, which are detailed in the foregoing embodiments and will not be described herein again.
The above operations can be implemented in the foregoing embodiments, and are not described in detail herein.
In summary, although the present application has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present application, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, so that the scope of the present application is defined by the appended claims.
Claims (8)
1. A road condition reminding method based on a narrowband Internet of things is applied to a server and is characterized by comprising the following steps:
the method comprises the steps that first position information sent by terminal equipment is obtained, the terminal equipment comprises a positioning function and an interaction function, the positioning function is used for obtaining the first position information, the interaction function is used for interacting with a user, and the terminal equipment sends the first position information to a server by opening a road condition reminding function;
judging whether the terminal equipment is close to a dangerous area or not according to the distance between the first position information and the dangerous area marked in the map database;
if yes, acquiring destination position information automatically generated by the terminal equipment according to the monitored user voice, determining a plurality of running paths which are not close to a dangerous area between the destination position information and the first position information, acquiring road congestion information and path length short messages of the plurality of running paths, selecting an optimal running path from the plurality of running paths according to the new road congestion information and the path length short messages, taking the optimal running path as an evasive path, and generating a road condition reminding instruction carrying the evasive path;
sending the road condition reminding instruction to the terminal equipment so that the terminal equipment can remind a user of the road condition;
receiving an updating instruction, wherein the updating instruction carries second position information;
acquiring the receiving times of the second position information and geographical environment information corresponding to the second position information, wherein the geographical environment information at least comprises terrain and topography;
and updating the dangerous areas in a map database according to the receiving times and the geographic environment information.
2. A road condition reminding method as claimed in claim 1, wherein the updating of the dangerous area in the map database according to the receiving times and the geographical environment information comprises:
determining a danger index of the second position information according to the geographic environment information;
determining a target threshold according to the risk index;
and if the receiving times are larger than the target threshold value, marking the area where the second position information is located in the map database as a dangerous area.
3. The road condition reminding method according to claim 1, wherein the determining a target threshold according to the risk index specifically comprises:
if the danger index is larger than a preset value, taking a first threshold value as a target threshold value;
and if the danger index is smaller than or equal to a preset value, taking a second threshold value as a target threshold value, wherein the first threshold value is smaller than the second threshold value.
4. A road condition reminding method based on a narrowband Internet of things is applied to vehicle-mounted equipment and is characterized by comprising the following steps:
determining a vehicle running state during the running process of the vehicle;
if the vehicle running state indicates dangerous driving, acquiring current second position information of the vehicle-mounted equipment;
generating an update instruction carrying the second position information, sending the update instruction to a server, so that the server determines a new dangerous area according to the receiving times of the second position information and terrain and topography information corresponding to the second position information, adding the new dangerous area into a map database to obtain the updated map database, judging whether the vehicle is close to the dangerous area according to the distance between the dangerous area in the updated map database and the position information of the vehicle, if so, acquiring destination position information automatically generated by a terminal device according to monitored user voice, determining a plurality of running paths which are not close to the dangerous area between the destination position information and the first position information, acquiring road congestion information and road length information of the plurality of running paths, selecting an optimal running path from the plurality of running paths according to the new road congestion information and the road length short message, and taking the optimal running path as an evasive path to generate a road condition reminding instruction carrying the evasive path; and sending the road condition reminding instruction to the terminal equipment so that the terminal equipment can remind the road condition of the user.
5. The road condition reminding method according to claim 4, wherein the determining the driving state of the vehicle specifically comprises:
acquiring an acceleration value detected by an acceleration sensor in the vehicle-mounted equipment;
generating a vehicle driving state indicating dangerous driving when the acceleration value is greater than a third threshold value;
generating a vehicle driving state indicating safe driving when the acceleration value is less than or equal to a third threshold value.
6. The utility model provides a road conditions reminding device based on narrowband thing networking is applied to the server, its characterized in that, road conditions reminding device includes:
the terminal equipment comprises a positioning function and an interaction function, wherein the positioning function is used for acquiring the first position information, the interaction function is used for interacting with a user, and the terminal equipment sends the first position information to the server by opening a road condition reminding function;
the judging module is used for judging whether the terminal equipment is close to a dangerous area or not according to the distance between the first position information and the dangerous area marked in the map database;
a generating module, configured to, if yes, obtain destination location information automatically generated by the terminal device according to the monitored user voice, determine multiple traveling paths that are not close to a dangerous area between the destination location information and the first location information, obtain road congestion information and a path length short message of the multiple traveling paths, select an optimal traveling path from the multiple traveling paths according to the new road congestion information and the path length short message, use the optimal traveling path as an avoidance path, and generate a road condition prompting instruction carrying the avoidance path;
the sending module is used for sending the road condition reminding instruction to the terminal equipment so as to enable the terminal equipment to remind a user of the road condition; receiving an updating instruction, wherein the updating instruction carries second position information; acquiring the receiving times of the second position information and geographical environment information corresponding to the second position information, wherein the geographical environment information at least comprises terrain and topography; and updating the dangerous areas in the map database according to the receiving times and the geographic environment information.
7. The utility model provides a road conditions reminding device based on narrowband thing networking is applied to mobile unit, its characterized in that, road conditions reminding device includes:
the vehicle driving state determining module is used for determining a vehicle driving state in the driving process of the vehicle;
the acquisition module is used for acquiring current second position information of the vehicle-mounted equipment when the vehicle running state indicates dangerous driving;
a sending module, configured to generate an update instruction carrying the second location information, and send the update instruction to a server, so that the server determines a new dangerous area according to the number of times of receiving the second location information and the terrain and topography information corresponding to the second location information, adds the new dangerous area to a map database, obtains the updated map database, and determines whether a vehicle is close to the dangerous area according to a distance between the dangerous area in the updated map database and the location information of the vehicle, if so, obtains destination location information automatically generated by a terminal device according to a monitored user voice, determines multiple traveling paths which are not close to the dangerous area between the destination location information and the first location information, obtains road information and a path length short message of the multiple traveling paths, and selects an optimal traveling path from the multiple traveling paths according to the new road congestion and the path length short message, and generates a road condition reminding instruction carrying the path; and sending the road condition reminding instruction to the terminal equipment so that the terminal equipment can remind the road condition of the user.
8. A computer-readable storage medium having stored thereon a plurality of instructions adapted to be loaded by a processor to execute the method for reminding a road condition according to any of claims 1 to 5.
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| WO2022160301A1 (en) * | 2021-01-29 | 2022-08-04 | 华为技术有限公司 | Road early warning method, device, and system |
| CN113511134B (en) * | 2021-06-22 | 2023-02-03 | 华录智达科技股份有限公司 | Bus risk avoiding method based on artificial intelligence technology |
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| CN106230933A (en) * | 2016-07-28 | 2016-12-14 | 深圳市元征科技股份有限公司 | A kind of data transmission method and mobile unit |
| CN108492625A (en) * | 2018-03-25 | 2018-09-04 | 张小莲 | A kind of pedestrian's intelligent collision traffic management control system based on NB-IoT |
| CN109785633A (en) * | 2019-03-14 | 2019-05-21 | 百度在线网络技术（北京）有限公司 | Dangerous road conditions based reminding method, device, car-mounted terminal, server and medium |
| CN210707141U (en) * | 2019-09-26 | 2020-06-09 | 上汽通用五菱汽车股份有限公司 | Vehicle-mounted T-BOX device for Internet of vehicles |
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