Vehicle early warning prompting system and early warning prompting method

Abstract

The invention discloses a vehicle early warning prompting system and an early warning prompting method, and belongs to the technical field of vehicle auxiliary driving, and the method comprises the steps that a cabin processing center judges whether a driver turns on a steering lamp or not, if not, a straight driving scene is judged, and if yes, a lane changing driving scene is judged; the sensing module obtains distance information and vehicle speed information and inputs the distance information and the vehicle speed information to a vehicle-mounted information entertainment system (IVI) host; the vehicle-mounted information entertainment system (IVI) host receives the distance information and the vehicle speed information and calculates a safety coefficient C; the display module is used for displaying the color information, the safety coefficient C, the distance information and the vehicle speed information of the vehicle and the vehicles right ahead, right behind, left front, left rear, right front, right rear and left and right sides of the vehicle; when the safety coefficient C is smaller than a second critical value, the alarm module gives an alarm. Early warning prompts can be given according to the conditions of vehicles and pedestrians in front of, behind, left front, left rear, right front, right rear and left and right sides of the vehicle.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle assisted driving, and in particular, the present invention relates to a vehicle early warning prompt system and an early warning prompt method. Background Art

[0002] The existing intelligent assisted driving system can only provide the driver with road condition monitoring in front of the vehicle, and cannot monitor the vehicles and pedestrians directly behind, on the left and right sides of the vehicle based on its own vehicle. For drivers who are not familiar with car operation, collision and rear-end collision may occur due to lane changing, acceleration, deceleration, and emergency braking.

[0003] Patent CN114954480B discloses a safe driving warning method, system, readable storage medium and vehicle, the method comprising: the perception module actively obtains the regional driving information and vehicle status information of the target vehicle at a first preset time interval, and sends the regional driving information and vehicle status to the information center processing module; the information center processing module determines whether the target vehicle has an intention to violate the regulations based on the regional driving information and vehicle status information, and the information center processing module sends the illegal operation intention corresponding to the illegal operation intention to the warning prompt module, so that the warning prompt module executes the corresponding warning strategy according to the illegal operation intention.

[0004] However, the technology disclosed in the above patent cannot issue early warning prompts based on the vehicles and pedestrians directly in front of, directly behind, in front of the left, behind, in front of the right, behind, on the left and on the left and right sides of the vehicle. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a vehicle early warning prompt system and an early warning prompt method in view of the deficiencies in the prior art, so as to achieve the purpose of making early warning prompts according to the vehicles and pedestrians directly in front of, directly behind, in front of the left, behind, in front of the right, behind, and on both sides of the vehicle.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] The present invention provides a vehicle early warning prompt system, comprising a perception module, an in-vehicle infotainment system (IVI) host, a display module, and an alarm module. The input end of the in-vehicle infotainment system (IVI) host is connected to the output end of the perception module; the output end of the in-vehicle infotainment system (IVI) host is respectively connected to the input end of the display module and the input end of the alarm module.

[0008] Furthermore, the perception module includes a millimeter-wave radar, a lidar, a camera, and an ultrasonic sensor, and the input end of the in-vehicle infotainment system (IVI) host is respectively connected to the output end of the millimeter-wave radar, the output end of the lidar, the output end of the camera, and the output end of the ultrasonic sensor.

[0009] Furthermore, the perception module obtains distance information and vehicle speed information and inputs them into an in-vehicle infotainment (IVI) host.

[0010] Furthermore, the in-vehicle infotainment system (IVI) host receives distance information and vehicle speed information and calculates a safety factor C between the vehicle and the vehicles directly in front of, directly behind, in front of the left, behind, in front of the right, behind, and on both sides of the vehicle.

[0011] Furthermore, the display module displays color information of the vehicle and the vehicles directly in front of, directly behind, in front of the left, behind, in front of the right, behind, on the left and on both sides of the vehicle, as well as the safety factor C, distance information and vehicle speed information.

[0012] Further, when the safety factor C is less than a second critical value, the in-vehicle infotainment system (IVI) host controls the alarm module to sound an alarm.

[0013] Furthermore, the safety factor C = D / D0, where D0 = ((V1+V2 / 2) 2 ) / 2A, D represents the distance between the vehicle and the vehicles in front of, behind, in front of the left, behind, in front of the right, behind, and on both sides of the vehicle, A represents the braking acceleration of the vehicle, V1 represents the speed of the vehicle, and V2 represents the speed of the vehicles in front of, behind, in front of the left, behind, in front of the right, behind, on both sides of the vehicle.

[0014] Furthermore, when the safety factor C is less than the first critical value, the display module displays the color of the vehicles directly in front of, directly behind, in front of the left, rear of the left, in front of the right, rear of the right, and on both sides of the vehicle as red; when the safety factor C is not less than the first critical value and not greater than the second critical value, the display module displays the color of the vehicles directly in front of, directly behind, in front of the left, rear of the left, in front of the right, rear of the right, and on both sides of the vehicle as yellow; when the safety factor C is greater than the second critical value, the display module displays the color of the vehicles directly in front of, directly behind, in front of the left, rear of the left, in front of the right, rear of the right, and on both sides of the vehicle as black.

[0015] The present invention also provides a vehicle early warning prompt method, the method comprising the following steps:

[0016] S1: The cockpit processing center determines whether the driver has turned on the turn signal. If not, it is determined to be a straight-line driving scenario. If so, it is determined to be a lane-changing driving scenario.

[0017] S2: The perception module obtains distance information and vehicle speed information and inputs it to the in-vehicle infotainment system (IVI) host;

[0018] S3: The in-vehicle infotainment system (IVI) host receives the distance information and vehicle speed information and calculates the safety factor C;

[0019] S4: judging whether the safety factor C is less than the first critical value through the in-vehicle infotainment system (IVI) host, if so, proceeding to S5, otherwise proceeding to S6;

[0020] S5: Display the color information of the vehicle and the vehicles directly in front of the vehicle, directly behind the vehicle, in front of the left, in front of the right, in back of the left, in front of the right, in back of the right, on the left and right sides of the vehicle, as well as the safety factor C, distance information and vehicle speed information, and issue an alarm through the alarm module, and enter S9;

[0021] S6: judging whether the safety factor C is greater than the second critical value through the in-vehicle infotainment system (IVI) host, if so, proceeding to S7, if not, proceeding to S8;

[0022] S7: Display the color information of the vehicle and the vehicles directly in front of the vehicle, directly behind the vehicle, in front of the left, in front of the right, in rear of the left, in front of the right, in rear of the right, on both sides of the vehicle, as well as the safety factor C and the vehicle speed information through the display module, and enter S9;

[0023] S8: Display the color information of the vehicle and the vehicles directly in front of the vehicle, directly behind the vehicle, in front of the left, in front of the right, in back of the left, in front of the right, in back of the right, on the left and on the right sides of the vehicle, as well as the safety factor C, distance information and vehicle speed information, and issue an alarm through the alarm module, and enter S9;

[0024] S9: End.

[0025] Furthermore, the first critical value is 0.4; the second critical value is 0.6.

[0026] The early warning prompting system and early warning prompting method of the present invention have the following advantages:

[0027] (1) Through the early warning prompt system and early warning prompt method of the present invention, early warning prompts can be made according to the vehicles and pedestrians in front of, behind, in front of the left, behind, in front of the right, behind, on the left and on both sides of the vehicle.

[0028] (2) Through the early warning prompt system and early warning prompt method of the present invention, the position and speed of vehicles and pedestrians in front of, behind, in front of the left, behind, in front of the right, behind, on the left and on both sides of the vehicle can be monitored in real time.

[0029] (3) Through the early warning prompt system and early warning prompt method of the present invention, vehicles or pedestrians directly in front of, directly behind, in front of the left, behind, in front of the right, behind, on the left, on the right, on the right, on the left ...

[0030] (4) In the present invention, by calculating the safety factor C, when the safety factor C is less than the second critical value, the in-vehicle infotainment system (IVI) host controls the alarm module to alarm, which can prompt the driver.

[0031] (5) The present invention enables the driver to clearly understand the traffic conditions of pedestrians and non-motor vehicles directly behind, to the left, to the right, and to the left and right sides of the vehicle, thereby saving the driver's observation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] This specification includes the following drawings, which show the following contents:

[0033] Figure 1 It is a logical structure block diagram of a vehicle early warning prompt system of the present invention;

[0034] Figure 2 It is a flow chart of a vehicle early warning prompt method of the present invention;

[0035] Figure 3 is a schematic diagram of a display interface of a display module in the system of the present invention;

[0036] Figure 4 It is a schematic diagram showing that the color of the vehicle directly in front of the vehicle in the straight-line driving scenario is black when the display module in the system of the present invention displays the vehicle;

[0037] Figure 5 It is a schematic diagram when the display module in the system of the present invention displays the color of the vehicle directly in front of the vehicle in a straight-line driving scenario as yellow;

[0038] Figure 6 It is a schematic diagram when the display module in the system of the present invention displays the color of the vehicle directly in front of the vehicle in a straight-line driving scenario as red;

[0039] Figure 7 It is a schematic diagram when the display module in the system of the present invention displays the color of the vehicle directly behind the vehicle in a straight-line driving scenario as red;

[0040] Figure 8 It is a schematic diagram when the display module in the system of the present invention displays that the colors of the vehicles directly in front of and behind the vehicle in a straight-line driving scenario are both red;

[0041] Fig. 9 It is a schematic diagram showing a situation where the vehicle satisfies the requirement of changing lanes to the left in a lane-changing driving scenario by a display module in the system of the present invention;

[0042] Fig.10 It is a schematic diagram showing a situation in which the display module in the system of the present invention displays a situation in which the vehicle does not satisfy the requirement of changing lanes to the left in a lane-changing driving scenario.

[0043] Explanation of the accompanying drawings: 1. Perception module; 2. In-vehicle infotainment system (IVI) host; 3. Display module; 4. Alarm module. DETAILED DESCRIPTION

[0044] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0045] Figure 1 It is a logical structure block diagram of a vehicle early warning prompt system of the present invention, including a perception module 1, an in-vehicle infotainment system (IVI) host 2, a display module 3, and an alarm module 4. The input end of the in-vehicle infotainment system (IVI) host 2 is connected to the output end of the perception module 1; the output end of the in-vehicle infotainment system (IVI) host 2 is respectively connected to the input end of the display module 3 and the input end of the alarm module 4.

[0046] Among them, the perception module 1 includes a millimeter-wave radar, a laser radar, a camera, and an ultrasonic sensor. The input end of the in-vehicle infotainment system (IVI) host 2 is respectively connected to the output end of the millimeter-wave radar, the output end of the laser radar, the output end of the camera, and the output end of the ultrasonic sensor. Through the perception module 1, the position and speed of vehicles and pedestrians in front of, behind, in front of the left, behind, in front of the right, behind, on both sides of the vehicle, as well as the situation of obstacles can be monitored in real time.

[0047] In addition, in this specific embodiment, the display module 3 adopts a cockpit central control screen; the alarm module includes a buzzer and a vibration device, the vibration device is arranged in the steering wheel, and is used to generate vibration feedback, and the output end of the in-vehicle infotainment system (IVI) host 2 is respectively connected to the input end of the buzzer and the input end of the vibration device, wherein the vibration device can adopt a linear vibration motor.

[0048] The working principle of the vehicle early warning prompt system of the present invention is as follows:

[0049] The perception module 1 obtains distance information and vehicle speed information and inputs them into the in-vehicle infotainment system (IVI) host 2. Specifically, the distance information is the distance information between the vehicle and the vehicles directly in front of, directly behind, in front of the left, behind, in front of the right, behind, and on both sides of the vehicle. The vehicle speed information includes the absolute speed information of the vehicle and the absolute speed information of the vehicles directly in front of, directly behind, in front of the left, behind, in front of the right, behind, on both sides of the vehicle.

[0050] The in-vehicle infotainment system (IVI) host 2 receives the distance information and the speed information and calculates the safety factor C between the vehicle and the vehicles directly in front of, directly behind, in front of the left, in front of the left, in front of the right, in front of the right, in back of the left, and on both sides of the vehicle. Specifically, the in-vehicle infotainment system (IVI) host 2 receives the distance information between the vehicle and the vehicles directly in front of, directly behind, in front of the left, in front of the left, in back of the right, in back of the right, and on both sides of the vehicle, and receives the absolute speed information of the vehicle and the absolute speed information of the vehicles directly in front of, directly behind, in front of the left, in back of the left, in front of the right, in back of the right, and on both sides of the vehicle; the in-vehicle infotainment system (IVI) host 2 calculates the safety factor C based on the above information received, and calculates the relative speed (vehicle speed - other vehicle speed) between the vehicle and the vehicles directly in front of, directly behind, in front of the left, in back of the left, in front of the right, in back of the right, and on both sides of the vehicle. Wherein, the safety factor C = D / D0, where D0 = ((V1+V2 / 2) 2) / 2A, D represents the distance between the vehicle and the vehicles directly in front of, directly behind, in front of the left, in rear of the left, in front of the right, in rear of the right, and on the left and right sides of the vehicle, A represents the braking acceleration of the vehicle, V1 represents the speed of the vehicle, and V2 represents the speed of the vehicles directly in front of, directly behind, in front of the left, in rear of the left, in front of the right, in rear of the right, and on the left and right sides of the vehicle. In addition, during the driving process of the vehicle, the color of the vehicle is displayed as white on the display module 3, while the vehicles or pedestrians directly in front of, directly behind, in front of the left, in rear of the left, in front of the right, in rear of the right, and on the left and right sides of the vehicle (taking the vehicle as an example in this specific implementation method) are displayed on the display module 3 with different colors to represent different states, so that the driver can intuitively understand the speed and position relationship between the vehicles or pedestrians directly in front of, directly behind, in front of the left, in rear of the left, in front of the right, in rear of the right, and on the left and right sides of the vehicle and the vehicle. When the color of the vehicles directly in front of, directly behind, in front of the left, in the rear left, in front of the right, in the rear right, on the left and on the left and right sides of the vehicle is red, the state represented is dangerous; when the color of the vehicles directly in front of, directly behind, in front of the left, in the rear left, in front of the right, in the rear right, on the right and on the left and right sides of the vehicle is yellow, the state represented is warning, alerting the driver to pay attention to the surrounding vehicles; when the color of the vehicles directly in front of, directly behind, in front of the left, in the rear left, in front of the right, in the rear right, on the right and on the left and right sides of the vehicle is black, the state represented is normal. Among them, the state level of red is higher than that of yellow, and the state level of yellow is higher than that of black. At the same time, the vehicle early warning prompt system of the present invention can dynamically adjust the colors displayed on the display module 3 of the vehicles or pedestrians directly in front of, directly behind, in front of the left, in the rear left, in front of the right, in the rear right, on the left and right sides of the vehicle according to real-time data. In addition, the distance information between the vehicle and the vehicles directly in front of, directly behind, in front of the left, behind, in front of the right, behind, and on both sides of the vehicle, as well as the absolute speed information of the vehicle, and the relative speed information between the vehicle and the vehicles directly in front of, directly behind, in front of the left, behind, in front of the right, behind, and on both sides of the vehicle, as well as the calculated safety factor C, and the color information of the vehicle are sent to the display module 3 through the in-vehicle infotainment system (IVI) host 2.

[0051] Figure 33 is a schematic diagram of the display interface of the display module 3 in the system of the present invention, the display module 3 displays the color information of the vehicle and the vehicles directly in front of, directly behind, left front, left rear, right front, right rear, and on both sides of the vehicle, as well as the safety factor C, distance information and vehicle speed information. Specifically, the display module 3 displays the color of the vehicle as white, the display module 3 displays the color of the vehicles directly in front of, directly behind, left front, left rear, right front, right rear, and on both sides of the vehicle as red, yellow or black, the display module 3 displays the safety factor C, the display module 3 displays the distance between the vehicle and the vehicles directly in front of, directly behind, left front, left rear, right front, right rear, and on both sides of the vehicle, the display module 3 displays the absolute speed of the vehicle, and the display module 3 displays the relative speed of the vehicle and the vehicles directly in front of, directly behind, left front, left rear, right front, right rear, and on both sides of the vehicle (vehicle speed minus other vehicle speed). Among them, the safety factor C displayed by the display module 3 refers to the safety factor C corresponding to the color with the highest status level among all the safety factors C between the vehicle and all the vehicles directly in front of, directly behind, in front of the left, in rear of, right in front of, right in rear of, on both sides of the vehicle; the distance between the vehicle directly in front of, directly behind, in front of the left, in rear of, right in front of, right in rear of, on both sides of the vehicle refers to the distance corresponding to the safety factor C displayed on the display module 3; the relative speed (vehicle speed - other vehicle speed) between the vehicle directly in front of, directly behind, in front of, left in front of, left in rear of, right in front of, right in rear of, on both sides of the vehicle refers to the relative speed corresponding to the safety factor C displayed on the display module 3. In addition, if there is no other vehicle in a certain direction of the vehicle, for example, if there is no other vehicle on the right side of the vehicle, the in-vehicle infotainment system (IVI) host 2 does not calculate the safety factor C between the vehicle and the vehicle on the right side of the vehicle.

[0052] The alarm module 4 is used for alarming. When the safety factor C is less than the second critical value, the in-vehicle infotainment system (IVI) host 2 controls the alarm module 4 to alarm. Specifically, when the safety factor C is less than the second critical value, the in-vehicle infotainment system (IVI) host 2 controls the buzzer to sound an alarm. At the same time, the in-vehicle infotainment system (IVI) host 2 controls the vibration device to vibrate so that the steering wheel vibrates, thereby prompting the driver.

[0053] When the safety factor C is less than the first critical value, the display module 3 displays the color of the vehicles directly in front of, directly behind, in front of the left, rear left, front of the right, rear right, and on both sides of the vehicle in red, displays the color of the vehicle in white, displays the distance between the vehicle and the vehicles directly in front of, directly behind, in front of the left, rear left, front of the right, rear right, and on both sides of the vehicle, displays the safety factor C, displays the absolute speed of the vehicle, and displays the relative speed of the vehicle and the vehicles directly in front of, directly behind, in front of the left, rear left, front of the right, rear right, and on both sides of the vehicle (speed of the vehicle minus speed of other vehicles). When the safety factor C is not less than the first critical value and not greater than the second critical value, the display module 3 displays the color of the vehicles in front of, behind, left front, left rear, right front, right rear, and left and right sides of the vehicle in yellow, displays the color of the vehicle in white, displays the distance between the vehicle in front of, behind, left front, left rear, right front, right rear, and left and right sides of the vehicle, displays the safety factor C, and displays the absolute speed of the vehicle. When the safety factor C is greater than the second critical value, the display module 3 displays the color of the vehicles in front of, behind, left front, left rear, right front, right rear, and left and right sides of the vehicle in black, displays the color of the vehicle in white, displays the value of the safety factor C, and displays the absolute speed of the vehicle. Then, it can be realized to make early warning prompts according to the vehicles and pedestrians in front of, behind, left front, left rear, right front, right rear, and left and right sides of the vehicle. In addition, the driver can also clearly understand the traffic of pedestrians and non-motor vehicles behind, to the left, to the right, and on both sides of the vehicle, saving the driver's observation time.

[0054] The above is the working principle of the vehicle early warning prompt system of the present invention.

[0055] Figure 2 The present invention is a flowchart of a vehicle early warning prompt method, the method comprising the following steps:

[0056] S1: The cockpit processing center determines whether the driver has turned on the turn signal. If not, it is determined to be a straight-line driving scene. If so, it is determined to be a lane-changing driving scene. Regardless of whether the cockpit processing center determines that the current scene is a straight-line driving scene or a lane-changing driving scene, it enters S2, which corresponds to Figure 2 S1 in.

[0057] S2: The sensing module 1 obtains the distance information and the vehicle speed information and inputs it to the in-vehicle infotainment system (IVI) host 2, which corresponds to Figure 2S2 in the above specifically obtains the distance information between the vehicle and the vehicles directly in front of, directly behind, in front of the left, behind, in front of the right, behind, and on both sides of the vehicle through the perception module 1, obtains the absolute speed information of the vehicle and the absolute speed information of the vehicles directly in front of, directly behind, in front of the left, behind, in front of the right, behind, and on both sides of the vehicle through the perception module 1, and inputs the above-mentioned information into the in-vehicle infotainment system (IVI) host 2 through the perception module 1.

[0058] S3: The in-vehicle infotainment system (IVI) host 2 receives the distance information and the vehicle speed information and calculates the safety factor C, which corresponds to Figure 2In S3, specifically, the in-vehicle infotainment system (IVI) host 2 receives the distance information between the vehicle and the vehicles directly in front of, directly behind, in front of the left, rear of the left, in front of the right, rear of the right, and on both sides of the vehicle, and receives the absolute speed information of the vehicle and the absolute speed information of the vehicles directly in front of, directly behind, in front of the left, rear of the left, in front of the right, rear of the right, and on both sides of the vehicle; the in-vehicle infotainment system (IVI) host 2 calculates the safety factor C based on the above-mentioned information received, and calculates the relative speed between the vehicle and the vehicles directly in front of, directly behind, in front of the left, rear of the left, in front of the right, rear of the right, rear of the right, and on both sides of the vehicle (vehicle speed minus other vehicle speed). In addition, during the driving process of the vehicle, the color of the vehicle is displayed as white on the display module 3, and the vehicles or pedestrians in front of, behind, left front, left rear, right front, right rear, left and both sides of the vehicle (the vehicle is taken as an example in this specific embodiment) are displayed in different colors on the display module 3 to represent different states, so as to let the driver know the speed and position relationship between the vehicles or pedestrians in front of, behind, left front, left rear, right front, right rear, left and both sides of the vehicle and the vehicle. When the color of the vehicles in front of, behind, left front, left rear, right front, right rear, left and both sides of the vehicle is red, the state represented is dangerous; when the color of the vehicles in front of, behind, left front, left rear, right front, right rear, left and both sides of the vehicle is yellow, the state represented is warning; when the color of the vehicles in front of, behind, left front, left rear, right front, right rear, left and both sides of the vehicle is black, the state represented is normal. At the same time, the vehicle early warning prompt system of the present invention can dynamically adjust the colors displayed on the display module 3 of the vehicles or pedestrians directly in front of, directly behind, in front of the left, in front of the left, in front of the right, in back ...

[0059] S4: The in-vehicle infotainment system (IVI) host 2 determines whether the safety factor C is less than the first critical value. If so, enter S5; if not, enter S6, corresponding to Figure 2 S4 in.

[0060] S5: Display the color information of the vehicle and the vehicles directly in front of the vehicle, directly behind the vehicle, in front of the left, in front of the left, in front of the right, in back of the vehicle, on the left and right sides, as well as the safety factor C, distance information and vehicle speed information through the display module 3, and alarm through the alarm module 4, and enter S9, which corresponds to Figure 2 In S5, specifically, the display module 3 displays the color of the vehicles directly in front of, directly behind, in front of the left, rear of the left, in front of the right, rear of the right, and on both sides of the vehicle in red, displays the color of the vehicle in white, displays the distance between the vehicle and the vehicles directly in front of, directly behind, in front of the left, rear of the left, in front of the right, rear of the right, and on both sides of the vehicle, displays the safety factor C, displays the absolute speed of the vehicle, displays the relative speed of the vehicle and the vehicles directly in front of, directly behind, in front of the left, rear of the left, in front of the right, rear of the right, rear of the right, and on both sides of the vehicle (vehicle speed minus other vehicle speed), and at the same time, the in-vehicle infotainment system (IVI) host 2 controls the buzzer to sound an alarm, and controls the vibration device to vibrate so that the steering wheel vibrates.

[0061] S6: The in-vehicle infotainment system (IVI) host 2 determines whether the safety factor C is greater than the second critical value. If so, it enters S7, if not, it enters S8, that is, corresponding to Figure 2 S6 in.

[0062] S7: Display the color information of the vehicle and the vehicles directly in front of the vehicle, directly behind the vehicle, in front of the left, in front of the right, in back of the left, in front of the right, in back of the right, on both sides of the vehicle, as well as the safety factor C and the vehicle speed information, and enter S9, which corresponds to Figure 2 S7 in the figure, specifically, when the safety factor C is greater than the second critical value, the display module 3 displays the vehicles in front of, behind, in front of the left, behind, in front of the right, behind, and on both sides of the vehicle in black, displays the vehicle in white, displays the value of the safety factor C, and displays the absolute speed of the vehicle.

[0063] S8: Display the color information of the vehicle and the vehicles directly in front of the vehicle, directly behind the vehicle, in front of the left, in front of the left, in front of the right, in back of the vehicle, on the left and right sides, as well as the safety factor C, distance information and vehicle speed information through the display module 3, and alarm through the alarm module 4, and enter S9, which corresponds to Figure 2 S8 in the figure, specifically, when the safety factor C is not less than the first critical value and not greater than the second critical value, the display module 3 displays the vehicles directly in front of, directly behind, in front of the left, in front of the left, in front of the right, in rear, and on both sides of the vehicle in yellow, displays the vehicle in white, displays the distance between the vehicle and the vehicles directly in front of, directly behind, in front of the left, in rear, in front of the right, in rear, and on both sides of the vehicle, displays the safety factor C, and displays the absolute speed of the vehicle.

[0064] S9: End, corresponding Figure 2 S9 in.

[0065] In the above method, when the cockpit processing center determines in S1 that the current scene is a straight-line driving scene, when the safety factor C between the vehicle and the vehicle directly in front of the vehicle is greater than the second critical value, the display module 3 displays the color of the vehicle directly in front of the vehicle as black (see Figure 4 ); When the safety factor C is not less than the first critical value and not greater than the second critical value, the display module 3 displays the color of the vehicle directly in front of the vehicle as yellow (see Figure 5 ); when the safety factor C is less than the first critical value, and the display module 3 displays the vehicle color directly in front of the vehicle as red (see Figure 6 ), prompting the driver to slow down or choose whether to change lanes according to the current conditions; when the safety factor C is less than the first critical value, and the display module 3 displays the color of the vehicle directly behind the vehicle as red (see Figure 7 ), prompting the driver not to brake suddenly or to choose whether to change lanes according to the conditions at the time; when the safety factor C is less than the first critical value, and the display module 3 shows that the colors of the vehicles directly in front and behind the vehicle are both red (see Figure 8 ), reminding the driver that there are dangerous situations in front and behind the vehicle, and not to brake suddenly or to choose whether to change lanes according to the current conditions.

[0066] In the above method, when the cockpit processing center in S1 determines that the current driving scene is a lane change, for example, when it is necessary to change lanes to the left, when the safety factor C between the vehicle and the vehicles to the left front, left rear, and left of the vehicle is not less than the first critical value, the driver is prompted to change lanes (see Fig. 9 ); When the safety factor C between the vehicle in front of the vehicle on the left, the vehicle behind the vehicle on the left, and the vehicle on the left is less than the first critical value, the driver is prompted not to change lanes (see Fig.10 ); the same applies when you need to change lanes to the right and when you need to change lanes to the left.

[0067] In this specific implementation, the first critical value is 0.4 and the second critical value is 0.6. However, the first critical value and the second critical value are not limited to 0.4 and 0.6 respectively, but can be adjusted according to specific circumstances and requirements.

[0068] In addition, in this specific embodiment, the perception module 1 communicates with the in-vehicle infotainment system (IVI) host 2 via the CAN protocol or the Telnet protocol; the in-vehicle infotainment system (IVI) host 2 communicates with the display module 3 via I2C or LVDS; the in-vehicle infotainment system (IVI) host 2 communicates with the alarm module 4 via the CAN bus.

[0069] In addition, the vehicles directly in front of, directly behind, in front left, in rear left, in front right, in rear right, and on both sides of the vehicle in the present invention refer to the vehicles located in the center grid of the nine-square grid, the vehicle directly in front of the vehicle is located in the grid directly above the center grid of the nine-square grid, the vehicle directly behind the vehicle is located in the grid directly below the center grid of the nine-square grid, the vehicle directly in front of the vehicle is located in the grid to the left of the grid directly above the center grid of the nine-square grid, the vehicle behind the vehicle is located in the grid to the left of the grid directly below the center grid of the nine-square grid, the vehicle in front right of the vehicle is located in the grid to the right of the grid directly above the center grid of the nine-square grid, the vehicle behind the vehicle is located in the grid to the right of the grid directly below the center grid of the nine-square grid, the vehicle on the left of the vehicle is located in the grid to the left of the center grid of the nine-square grid, and the vehicle on the right of the vehicle is located in the grid to the right of the grid directly below the center grid of the nine-square grid.

[0070] Functions and Effects of the Embodiments

[0071] When the safety factor C is less than the first critical value, the display module 3 displays the color of the vehicles directly in front of, directly behind, in front of the left, rear left, front of the right, rear right, and on both sides of the vehicle in red, displays the color of the vehicle in white, displays the distance between the vehicle and the vehicles directly in front of, directly behind, in front of the left, rear left, front of the right, rear right, and on both sides of the vehicle, displays the safety factor C, displays the absolute speed of the vehicle, and displays the relative speed of the vehicle and the vehicles directly in front of, directly behind, in front of the left, rear left, front of the right, rear right, and on both sides of the vehicle (speed of the vehicle minus speed of other vehicles). When the safety factor C is not less than the first critical value and not greater than the second critical value, the display module 3 displays the color of the vehicles in front of, behind, left front, left rear, right front, right rear, and left and right sides of the vehicle in yellow, displays the color of the vehicle in white, displays the distance between the vehicle in front of, behind, left front, left rear, right front, right rear, and left and right sides of the vehicle, displays the safety factor C, and displays the absolute speed of the vehicle. When the safety factor C is greater than the second critical value, the display module 3 displays the color of the vehicles in front of, behind, left front, left rear, right front, right rear, and left and right sides of the vehicle in black, displays the color of the vehicle in white, displays the value of the safety factor C, and displays the absolute speed of the vehicle. Then, it can be realized to make early warning prompts according to the vehicles and pedestrians in front of, behind, left front, left rear, right front, right rear, and left and right sides of the vehicle. In addition, the driver can also clearly understand the traffic of pedestrians and non-motor vehicles behind, to the left, to the right, and on both sides of the vehicle, saving the driver's observation time.

[0072] The perception module 1 includes a millimeter-wave radar, a laser radar, a camera, and an ultrasonic sensor. The input end of the in-vehicle infotainment system (IVI) host 2 is respectively connected to the output end of the millimeter-wave radar, the output end of the laser radar, the output end of the camera, and the output end of the ultrasonic sensor. Through the perception module 1, the position and speed of vehicles and pedestrians in front of, behind, in front of the left, behind, in front of the right, behind, on both sides of the vehicle can be monitored in real time.

[0073] During the driving process of the vehicle, the color of the vehicle is displayed in white on the display module 3, and the vehicles or pedestrians directly in front of, directly behind, in front of the left, in front of the left, in front of the right, in rear, on the right, on the right, on the left, on the left, on the left, on the right ... left, on the right, on the right, on the right, on the left, on the right, on the right, on the right, on the left, on the right, on the right, on the right, on the left, on the right, on the right, on the right, on the left, on the right, on the right, on the right, on the right, on the right, on the left, on the right, on the right, on the right, on the right, on the right, on the left, on the right, on the right, on the right, on the right, on the right, on the right, on the right, on the right, on the left, on the right, on the right, on the right, on the right, on the right, on the right, on the right, on the right, on the right, on the right, on the right,

[0074] When the safety factor C is less than the second critical value, the IVI host 2 controls the buzzer to sound an alarm, and at the same time, the IVI host 2 controls the vibration device to vibrate so that the steering wheel vibrates, thereby prompting the driver.

[0075] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A vehicle early warning prompt system, characterized in that: It includes a perception module, an in-vehicle infotainment system (IVI) host, a display module, and an alarm module. The input end of the in-vehicle infotainment system (IVI) host is connected to the output end of the perception module; the output end of the in-vehicle infotainment system (IVI) host is respectively connected to the input end of the display module and the input end of the alarm module.

2. A vehicle early warning prompt system as claimed in claim 1, characterized in that: The perception module includes a millimeter-wave radar, a laser radar, a camera, and an ultrasonic sensor. The input end of the in-vehicle infotainment system (IVI) host is respectively connected to the output end of the millimeter-wave radar, the output end of the laser radar, the output end of the camera, and the output end of the ultrasonic sensor.

3. A vehicle early warning prompt system as claimed in claim 2, characterized in that: The sensing module obtains distance information and vehicle speed information and inputs the information to the in-vehicle infotainment (IVI) host.

4. A vehicle warning prompt system as claimed in claim 3, characterized in that: The in-vehicle infotainment system (IVI) host receives the distance information and vehicle speed information and calculates a safety factor C between the vehicle and the vehicles directly in front of, directly behind, in front of the left, behind, in front of the right, behind, and on both sides of the vehicle.

5. A vehicle warning prompt system as claimed in claim 4, characterized in that: The display module displays the color information of the vehicle and the vehicles directly in front of, directly behind, in front of the left, behind, in front of the right, behind, on the left and right sides of the vehicle, as well as the safety factor C, distance information and vehicle speed information.

6. A vehicle warning prompt system as claimed in claim 4, characterized in that: When the safety factor C is less than a second critical value, the in-vehicle infotainment system (IVI) host controls the alarm module to alarm.

7. A vehicle warning prompt system according to any one of claims 4 to 6, characterized in that: The safety factor C = D / D0, where D0 = ((V1+V2 / 2) 2 ) / 2A, D represents the distance between the vehicle and the vehicles in front of, behind, in front of the left, behind, in front of the right, behind, and on both sides of the vehicle, A represents the braking acceleration of the vehicle, V1 represents the speed of the vehicle, and V2 represents the speed of the vehicles in front of, behind, in front of the left, behind, in front of the right, behind, on both sides of the vehicle.

8. A vehicle warning prompt system as claimed in claim 7, characterized in that: When the safety factor C is less than the first critical value, the display module displays the vehicles directly in front of, directly behind, in front of the left, rear of the left, in front of the right, rear of the right, and on both sides of the vehicle in red; when the safety factor C is not less than the first critical value and not greater than the second critical value, the display module displays the vehicles directly in front of, directly behind, in front of the left, rear of the left, in front of the right, rear of the right, and on both sides of the vehicle in yellow; when the safety factor C is greater than the second critical value, the display module displays the vehicles directly in front of, directly behind, in front of the left, rear of the left, in front of the right, rear of the right, and on both sides of the vehicle in black.

9. A vehicle early warning method according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: S1: The cockpit processing center determines whether the driver has turned on the turn signal. If not, it is determined to be a straight-line driving scenario. If so, it is determined to be a lane-changing driving scenario. S2: The perception module obtains distance information and vehicle speed information and inputs it to the in-vehicle infotainment system (IVI) host; S3: The in-vehicle infotainment system (IVI) host receives the distance information and vehicle speed information and calculates the safety factor C; S4: judging whether the safety factor C is less than the first critical value through the in-vehicle infotainment system (IVI) host, if so, proceeding to S5, otherwise proceeding to S6; S5: Display the color information of the vehicle and the vehicles directly in front of the vehicle, directly behind the vehicle, in front of the left, in front of the right, in back of the left, in front of the right, in back of the right, on the left and right sides of the vehicle, as well as the safety factor C, distance information and vehicle speed information, and issue an alarm through the alarm module, and enter S9; S6: judging whether the safety factor C is greater than the second critical value through the in-vehicle infotainment system (IVI) host, if so, proceeding to S7, if not, proceeding to S8; S7: Display the color information of the vehicle and the vehicles directly in front of the vehicle, directly behind the vehicle, in front of the left, in front of the right, in rear of the left, in front of the right, in rear of the right, on both sides of the vehicle, as well as the safety factor C and the vehicle speed information through the display module, and enter S9; S8: Display the color information of the vehicle and the vehicles directly in front of the vehicle, directly behind the vehicle, in front of the left, in front of the right, in rear of the left, in front of the right, in rear of the right, on the left and right sides of the vehicle, as well as the safety factor C, distance information and vehicle speed information, and issue an alarm through the alarm module, and enter S9; S9: End.

10. A vehicle early warning method as claimed in claim 9, characterized in that: The first critical value is 0.4; the second critical value is 0.6.

Images