Auxiliary reminding method for safe lane changing based on Internet of Vehicles

Abstract

The invention relates to an auxiliary reminding method for safe lane changing based on the Internet of Vehicles, comprising at least two vehicles which at least comprise a No.1 vehicle located on a right lane and a No.2 vehicle located on an adjacent lane, and the two vehicles can be connected and communicated through a network; the first vehicle can obtain the vehicle speed and position information of the second vehicle; the second vehicle is provided with intelligent equipment, and the intelligent equipment can detect a steering lamp signal or a steering wheel steering signal of the vehicle; and the intelligent equipment of the No.2 vehicle performs prediction calculation according to the detected signal, and can trigger voice reminding according to a calculation result. The problem that collision accidents may occur due to the fact that a driver does not find vehicles behind the adjacent lane due to the fact that the driver forgets to check the rearview mirror or the driver actively changes the lane is solved. Whether the vehicles in the two lanes have a collision risk in a future period of time is calculated in an Internet of Vehicles mode, the system actively reminds, real-time calculation can be performed according to related information of the vehicles, voice reminding can be triggered when needed, and the driving safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile driving safety, and in particular to an auxiliary reminder method for safe lane change based on an Internet of Vehicles. Background Art

[0002] During the process of driving a car, the safety issue of changing lanes has always attracted much attention. In the prior art, in order to solve the problem of blind spots in rearview mirrors, a small disc rearview mirror similar to the principle of a convex lens or a camera facing the rear is usually used. However, this method has many disadvantages.

[0003] In the existing related technologies, the installation of a small disc rearview mirror that uses a convex lens principle may require adjustment or replacement of the original rearview mirror. The original rearview mirror is usually a standard configuration of the vehicle that has been carefully designed and tested, with specific optical performance and angle adjustment range to meet the driver's observation needs in different driving scenarios. Installing a small disc rearview mirror may change the optical system of the original rearview mirror, causing the driver's rear view to be deformed, distorted, or the blind spot to increase. For example, the curvature of the small disc rearview mirror may be different from that of the original rearview mirror, causing the driver to make errors in judging the distance and speed of the vehicle behind.

[0004] When using a camera facing the rear to solve the problem of rearview mirror blind spots, it is necessary to arrange the lines and fix the equipment. The wiring system inside the vehicle is a complex whole. If the newly added camera lines are not arranged properly, they may interfere with the original electrical lines of the vehicle. For example, it may affect the normal operation of the vehicle's central control system, audio system or other electronic equipment. In addition, the fixing position of the camera also needs to be carefully selected. If the installation position is unreasonable, the blind spot may not be fully covered, or the camera angle may be offset due to vibration during the driving of the vehicle, affecting the observation effect.

[0005] When installing a camera, if the wiring layout does not meet the vehicle safety standards, it may cause safety hazards. For example, if the wiring is not effectively insulated or is not firmly fixed, it may cause a short circuit, which may lead to serious accidents such as vehicle fires. In addition, if the installation of the camera affects the driver's line of sight or distracts the driver's attention during the operation of the vehicle, it will also increase the danger of driving.

[0006] Whether it is a small disc rearview mirror or a camera, the car owner needs to purchase it separately. The price of these devices varies depending on the brand, quality and function, but in general, they will increase the initial purchase cost of the vehicle. For some car owners with limited budgets, this may be a considerable expense.

[0007] As time goes by, these devices may malfunction. The small disc rearview mirror may lose its function due to external impact, lens aging, or internal mechanical structure damage. The camera may have problems such as blurred images, failure to start normally, or data transmission failure. When these devices fail, repair or replacement requires a certain amount of money. Moreover, since these devices are not standard equipment of the vehicle, their repair and replacement may require finding professional maintenance personnel or suppliers, which also increases the difficulty and cost of maintenance.

[0008] When driving, drivers tend to focus on the road and traffic conditions ahead and easily neglect to check the display content of the rearview mirror or camera. Especially when driving for a long time or in a complex driving environment, drivers may forget to check due to fatigue, distraction or habit. For example, when driving on a highway, the driver may forget to check the rearview mirror or camera when changing lanes because he is focused on the speed and distance of the vehicle in front. As a result, he cannot detect the vehicle behind the adjacent lane in time, which may lead to a collision accident.

[0009] Even if the driver checks the rearview mirror or camera, they may not be able to detect danger in time due to the limitations of the equipment. For example, the field of view of a small disc rearview mirror is relatively small and may not fully cover all areas behind the adjacent lane. Although the camera can provide a wider field of view, the image display may be delayed or the image quality may be poor in low light conditions, affecting the driver's judgment of the situation of the vehicle behind. Therefore, at the moment of changing lanes, the driver may not be able to accurately obtain the position and speed information of the vehicle behind the adjacent lane, and thus cannot make timely decisions, increasing the risk of collision. Summary of the invention

[0010] In view of the deficiencies in the current related existing technologies, the present invention provides a safe lane change auxiliary reminder method based on the Internet of Vehicles to solve the problem that when a currently moving vehicle is about to change lanes to an adjacent lane, a collision accident may occur because the driver does not see the vehicle behind the adjacent lane through the rearview mirror (the blind spot of the rearview mirror) or forgets to check whether there is an oncoming vehicle in the adjacent lane and actively changes lanes. A safe lane change auxiliary reminder method with strong versatility, low cost and system active reminder is realized through the Internet of Vehicles.

[0011] To achieve the above-mentioned object, the first aspect of the present invention provides a method for assisting reminder of safe lane change based on Internet of Vehicles.

[0012] At least two vehicles are included, including at least vehicle No. 1 located in the right lane and vehicle No. 2 located in the adjacent lane, and the two vehicles can be connected and communicated through a network;

[0013] Car 1 can obtain the speed and location information of Car 2;

[0014] Vehicle No. 2 is equipped with a smart device capable of detecting a turn signal of a vehicle's turn lamp or a steering wheel;

[0015] The smart device in car 2 performs predictive calculations based on the detected signals and can trigger voice reminders based on the calculation results;

[0016] The method is used to solve the problem that a driver fails to detect a vehicle behind an adjacent lane due to a rearview mirror blind spot or forgets to check the rearview mirror when changing lanes, thereby actively changing lanes and possibly causing a collision accident.

[0017] Furthermore, network connection communication is achieved by placing a networked device in each of the two vehicles, wherein the networked device is a networked mobile phone or a smart networked device, and the networked devices of the two vehicles are connected to a vehicle information forwarding server.

[0018] Furthermore, the networked device has a voice broadcast function.

[0019] Further, the prediction calculation includes when the speed of vehicle No. 2 is v2, the position information is x2, y2; the speed of vehicle No. 1 is v1, the position information is x1, y1; the driver's reaction time is t, and the advance reminder time interval is deta_t;

[0020] When v2>v1, the calculation is triggered, and the real-time distances s1 and s2 between the two vehicles are calculated according to the distance formula between two points in the plane, where

[0021]

[0022] s2=(v2-v1)*(t+deta_t)

[0023] Calculate s1 and s2 in real time. When s2>s1, trigger the voice reminder of the smart networked device.

[0024] Furthermore, the intelligent device detects the turn signal of the turn signal or the steering wheel turn signal in real time; and the acquisition of the vehicle speed and position information is also in real time.

[0025] Furthermore, the vehicle information forwarding server can process and forward relevant information between two vehicles, including vehicle speed, location, turn signal or steering wheel turn signal related information.

[0026] Furthermore, the content of the voice reminder is dynamically generated based on the relative position and speed relationship between the two vehicles, including a reminder that a vehicle is approaching in an adjacent lane and a corresponding lane change suggestion.

[0027] Furthermore, the method is applicable to different types of vehicles, including cars, buses or trucks.

[0028] The present invention adopts the above technical solution, which has at least the following beneficial effects:

[0029] 1. Solve the problem that the driver fails to notice the vehicle behind in the adjacent lane due to the blind spot of the rearview mirror or forgets to check the rearview mirror, and may cause a collision accident when actively changing lanes.

[0030] 2. It has strong versatility and is suitable for different types of vehicles, including cars, buses, trucks, etc.

[0031] 3. Low cost: Communication is achieved through the use of networked mobile phones or smart networked devices and vehicle information forwarding servers, avoiding the complex and expensive installation of dedicated equipment.

[0032] 4. The system calculates whether there is a risk of collision between vehicles in the two lanes in the future through the Internet of Vehicles. It will actively remind you and can calculate in real time based on the relevant information of the vehicle and trigger voice reminders when necessary to improve driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a flow chart of the auxiliary reminder method for safe lane change based on the Internet of Vehicles of the present invention.

[0035] Figure 2 It is a schematic diagram of the vehicle of the present invention on the road. DETAILED DESCRIPTION

[0036] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0037] Embodiment 1

[0038] like Figure 1 and Figure 2 As shown, the first aspect of this embodiment provides a safe lane change auxiliary reminder method based on vehicle networking, including at least two vehicles, including at least vehicle No. 1 located in the right lane and vehicle No. 2 located in the adjacent lane, and the two vehicles can be connected and communicated through the network;

[0039] Car 1 can obtain the speed and location information of Car 2;

[0040] Vehicle No. 2 is equipped with a smart device capable of detecting a turn signal of a vehicle's turn lamp or a steering wheel;

[0041] The smart device in car 2 performs predictive calculations based on the detected signals and can trigger voice reminders based on the calculation results;

[0042] The method is used to solve the problem that a driver fails to detect a vehicle behind an adjacent lane due to a rearview mirror blind spot or forgets to check the rearview mirror when changing lanes, thereby actively changing lanes and possibly causing a collision accident.

[0043] As an implementation method, in this embodiment, network connection communication is achieved by placing a networked device in each of the two vehicles, the networked device is a networked mobile phone or a smart networked device, and the networked devices of the two vehicles are connected to a vehicle information forwarding server. The networked device has a voice broadcast function.

[0044] As an implementation mode, the prediction calculation in this embodiment includes when the speed of vehicle No. 2 is v2, the position information is x2, y2; the speed of vehicle No. 1 is v1, the position information is x1, y1; the driver's reaction time is t, and the advance reminder time interval is deta_t;

[0045] When v2>v1, the calculation is triggered, and the real-time distances s1 and s2 between the two vehicles are calculated according to the distance formula between two points in the plane, where

[0046]

[0047] s2=(v2-v1)*(t+deta_t)

[0048] Calculate s1 and s2 in real time. When s2>s1, trigger the voice reminder of the smart networked device.

[0049] As an implementation mode, the intelligent device in this embodiment detects the turn signal of the turn signal or the steering wheel turn signal in real time; and the acquisition of the vehicle speed and position information is also in real time.

[0050] As an implementation mode, the vehicle information forwarding server described in this embodiment can process and forward relevant information between two vehicles, including vehicle speed, position, turn signal or steering wheel turn signal related information.

[0051] As an implementation mode, the content of the voice reminder described in this embodiment is dynamically generated based on the relative position and speed relationship between the two vehicles, including prompting that a vehicle is approaching in an adjacent lane and corresponding lane change suggestions.

[0052] As an implementation mode, the method described in this embodiment is applicable to different types of vehicles, including cars, buses or trucks.

[0053] Embodiment 2

[0054] This embodiment takes an actual driving scenario as an example to illustrate the auxiliary reminder method for safe lane change based on the Internet of Vehicles of the present invention.

[0055] Vehicle Selection

[0056] First, determine vehicle No. 1 and vehicle No. 2. These two vehicles can be any combination of vehicles that need to change lanes and are in adjacent lanes during actual road driving. For example, on a multi-lane highway, vehicle No. 1 can be a car in the right outermost lane, and vehicle No. 2 can be a passenger car in the adjacent inner lane; or on an urban road, vehicle No. 1 can be a truck in the middle lane, and vehicle No. 2 can be a car in the adjacent left lane, etc. Vehicle types include but are not limited to cars, buses, trucks, etc., and the present invention is applicable to various types of motor vehicles.

[0057] Equipment installation and configuration

[0058] Place one networked device in each of Car 1 and Car 2. If you are using a networked mobile phone, place it in a suitable location in the vehicle's cab, such as near the center console, to ensure that it can stably receive and send signals and does not affect the driver's normal operation and vision. If it is a smart networked device, use a specially designed bracket to fix it in a suitable location in the car, such as under the windshield.

[0059] The two connected devices are connected to a vehicle information forwarding server. The vehicle information forwarding server can be a remote server based on cloud computing technology or a server set up in a local network environment. The server needs to have sufficient processing power and data storage capacity to process and forward relevant information between the two vehicles, including vehicle speed, location, turn signal or steering wheel turn signal information.

[0060] Car No. 2 is equipped with an intelligent device that can detect the vehicle's turn signal light or steering wheel turn signal. The intelligent device can be a module integrated in the vehicle's central control system, or it can be an independent external device. For example, some vehicles may have intelligent driving assistance systems themselves, and their internal sensors and control modules can be upgraded or modified to achieve the signal detection function required by the present invention; for vehicles without such systems, an external intelligent device can be installed, which obtains relevant information of the vehicle and performs signal detection by connecting to the vehicle's OBD interface (on-board diagnostic system interface) or other suitable interfaces. At the same time, the intelligent device has a voice broadcast function, and its voice module can use a high-quality speaker to ensure that the voice reminder is clear and audible.

[0061] Information acquisition and detection, vehicle speed and location information acquisition;

[0062] During the driving process, vehicle 1 obtains the speed and location information of vehicle 2 in real time through the networked device. The speed information can be obtained through the vehicle's wheel speed sensor or GPS positioning system, and then sent to the vehicle information forwarding server through the networked device, and then forwarded by the server to the networked device of vehicle 1. The location information is mainly obtained through the GPS positioning system, and its accuracy can reach the meter level or even higher, which can accurately reflect the location of the vehicle on the road.

[0063] Turn signal and steering wheel signal detection

[0064] The smart device of car No. 2 detects the vehicle's own turn signal or steering wheel turn signal in real time. For turn signal detection, the smart device can obtain the signal status by connecting to the vehicle's turn signal circuit. When the turn signal is on, the smart device can detect it immediately. For steering wheel turn signal detection, if the vehicle itself has a steering wheel angle sensor, the smart device can directly obtain sensor data to determine the steering wheel rotation; if the vehicle does not have such a sensor, the smart device can indirectly determine whether the steering wheel is turned by detecting the vehicle's lateral acceleration. For example, when the driver operates the turn signal of car No. 2 or turns the steering wheel, the smart device can detect the corresponding signal in a very short time (e.g., a few milliseconds to tens of milliseconds).

[0065] Predictive calculation, calculation condition judgment

[0066] When the smart device of car 2 detects the turn signal or steering wheel turn signal, it is necessary to further determine whether the calculation conditions are met. Assume that the speed of car 2 is v2, the position information is x2, y2, the speed of car 1 is v1, the position information is x1, y1, the driver's reaction time is t, and the advance reminder time interval is deta_t. First, determine the size relationship between v2 and v1, and trigger the calculation when v2>v1. This is because when the speed of car 2 is greater than that of car 1, car 2 may approach the lane where car 1 is faster, and there is a risk of lane change collision.

[0067] Distance calculation

[0068] The real-time distances s1 and s2 between the two vehicles are calculated according to the distance formula between two points in a plane.

[0069]

[0070] s2=(v2-v1)*(t+deta_t)

[0071] Driver reaction time and lead time are taken into account to ensure that the reminder is issued at the appropriate time.

[0072] Voice reminder, voice content generation

[0073] During the real-time calculation of s1 and s2, when s2>s1, the smart device of car 2 triggers a voice reminder. The content of the voice reminder is dynamically generated based on the relative position and speed relationship of the two cars. For example, if car 2 is on the left side of car 1 and is moving faster, the voice reminder may be "There is a vehicle approaching on the left, be careful to change lanes"; if car 2 is on the right side of car 1 and is moving faster, the voice reminder may be "There is a vehicle approaching on the right, be careful to change lanes." At the same time, the voice reminder can also give more specific suggestions based on the distance and speed difference between the two cars, such as "The vehicle on the left is moving faster and the distance is closer, please postpone changing lanes."

[0074] Voice broadcast implementation

[0075] The voice module of the smart device broadcasts the generated voice content through the speaker. In order to ensure the effectiveness of the voice reminder, the volume of the speaker can be automatically adjusted according to the noise environment inside the vehicle. For example, when the vehicle is driving at high speed and the noise is loud, the speaker volume will be automatically increased; when the vehicle is driving at low speed and the noise is low, the speaker volume will be automatically reduced.

[0076] Through the above specific implementation methods, the safe lane change auxiliary reminder method based on the Internet of Vehicles of the present invention can effectively solve the problem that the driver may not notice the vehicle behind the adjacent lane due to the blind spot of the rearview mirror or forget to check the rearview mirror when changing lanes, thereby actively changing lanes and causing a collision accident. This realizes a safe lane change auxiliary reminder method that is highly versatile, low-cost and can actively remind the system.

[0077] Although the embodiments of the present invention have been shown and described above, it will be appreciated that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, substitute and vary the above embodiments within the scope of the present invention.

Claims

1. A method for assisting reminder of safe lane change based on Internet of Vehicles, characterized in that: At least two vehicles are included, including at least vehicle No. 1 located in the right lane and vehicle No. 2 located in the adjacent lane, and the two vehicles can be connected and communicated through a network; Car 1 can obtain the speed and location information of Car 2; Vehicle No. 2 is equipped with a smart device capable of detecting a turn signal of a vehicle's turn lamp or a steering wheel; The smart device in car 2 performs predictive calculations based on the detected signals and can trigger voice reminders based on the calculation results; The method is used to solve the problem that a driver fails to detect a vehicle behind an adjacent lane due to a rearview mirror blind spot or forgets to check the rearview mirror when changing lanes, thereby actively changing lanes and possibly causing a collision accident.

2. The auxiliary reminder method according to claim 1, characterized in that: Network connection communication is achieved by placing a networked device in each of the two vehicles. The networked device is a networked mobile phone or a smart networked device, and the networked devices of the two vehicles are connected to a vehicle information forwarding server.

3. The auxiliary reminder method according to claim 1, characterized in that: The networking device has a voice broadcast function.

4. The auxiliary reminder method according to any one of claims 1 to 3, characterized in that: The prediction calculation includes when the speed of vehicle 2 is v2, the position information is x2, y2; the speed of vehicle 1 is v1, the position information is x1, y1; the driver's reaction time is t, and the advance reminder time interval is deta_t; When v2>v1, the calculation is triggered, and the real-time distances s1 and s2 between the two vehicles are calculated according to the distance formula between two points in the plane, where s2=(v2-v1)*(t+deta_t) Calculate s1 and s2 in real time. When s2>s1, trigger the voice reminder of the smart networked device.

5. The auxiliary reminder method according to claim 4, characterized in that: The intelligent device detects the turn signal of the turn signal or the steering wheel turn signal in real time; and the acquisition of the vehicle speed and position information is also in real time.

6. The auxiliary reminder method according to claim 5, characterized in that: The vehicle information forwarding server can process and forward relevant information between two vehicles, including vehicle speed, location, turn signal or steering wheel turn signal related information.

7. The auxiliary reminder method according to claim 6, characterized in that: The content of the voice reminder is dynamically generated based on the relative position and speed relationship between the two vehicles, including a reminder that a vehicle is approaching in an adjacent lane and a corresponding lane change suggestion.

8. The auxiliary reminder method according to claim 6, characterized in that: The method is applicable to different types of vehicles, including cars, buses or trucks.

Images