Vehicle state control method, system and device, storage medium and program product

Abstract

The invention relates to a vehicle state control method, system and device, a storage medium and a program product, and relates to the technical field of vehicle control. The method is executed by a first vehicle and comprises the following steps: acquiring vehicle state information of the first vehicle under the condition that the first vehicle is in a driving state; the vehicle state information is used for indicating driving data of the vehicle; receiving vehicle state information of a second vehicle sent by the second vehicle; the second vehicle is a vehicle located in a specified range in front of the first vehicle; under the condition that the vehicle state information of the first vehicle and the vehicle state information of the second vehicle meet a first condition, playing a voice reminding message; the voice reminding message is used for indicating the driving state of the second vehicle; and under the condition that the vehicle state information of the first vehicle and the vehicle state information of the second vehicle meet a second condition, the driving state of the first vehicle is adjusted. The driving safety can be guaranteed, and the traffic efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a vehicle state control method, system, device, storage medium and program product. Background Art

[0002] During vehicle driving, it is crucial to ensure a safe distance between the vehicle and the vehicle in front to avoid collisions between vehicles.

[0003] In related technologies, vehicles, road facilities and cloud resources can be connected through vehicle-road-cloud collaborative perception using new-generation information technologies such as wireless communications, artificial intelligence, and the Internet of Things to form a unified information interaction network.

[0004] However, there will inevitably be a certain time delay in the process from vehicle information mobile phone to cloud processing and then sending instructions to relevant vehicles, which will affect the response speed to emergencies, especially when the vehicle is driving at high speed, affecting driving safety. Summary of the invention

[0005] The embodiments of the present application provide a vehicle state control method, system, device, storage medium and program product, which can ensure driving safety and improve traffic efficiency. The technical solution is as follows:

[0006] In one aspect, a vehicle state control method is provided, the method being performed by a first vehicle, the method comprising:

[0007] When the first vehicle is in a driving state, obtaining vehicle state information of the first vehicle; the vehicle state information is used to indicate driving data of the vehicle;

[0008] receiving vehicle status information of a second vehicle sent by a second vehicle; the second vehicle is a vehicle located within a specified range in front of the first vehicle;

[0009] When the vehicle status information of the first vehicle and the vehicle status information of the second vehicle meet a first condition, playing a voice reminder message; the voice reminder message is used to indicate the driving status of the second vehicle;

[0010] When the vehicle state information of the first vehicle and the vehicle state information of the second vehicle satisfy a second condition, the driving state of the first vehicle is adjusted.

[0011] In one aspect, a vehicle control system is provided, the system comprising a data acquisition unit, a direct communication unit and a decision control unit;

[0012] The data acquisition unit is used to obtain vehicle status information of the first vehicle when the first vehicle is in a driving state; the vehicle status information is used to indicate driving data of the vehicle;

[0013] The direct communication unit is used to receive vehicle status information of the second vehicle sent by the second vehicle; the second vehicle is a vehicle located within a specified range in front of the first vehicle;

[0014] The decision control unit is used to play a voice reminder message when the vehicle status information of the first vehicle and the vehicle status information of the second vehicle meet a first condition; the voice reminder message is used to indicate the driving status of the second vehicle;

[0015] The decision control unit is used to adjust the driving state of the first vehicle when the vehicle state information of the first vehicle and the vehicle state information of the second vehicle meet a second condition.

[0016] In another aspect, a vehicle state control device is provided, the device comprising:

[0017] a first acquisition module, configured to acquire vehicle state information of the first vehicle when the first vehicle is in a driving state; the vehicle state information is used to indicate driving data of the vehicle;

[0018] A first receiving module is used to receive vehicle status information of a second vehicle sent by a second vehicle; the second vehicle is a vehicle located within a specified range in front of the first vehicle;

[0019] A voice reminder module, used for playing a voice reminder message when the vehicle status information of the first vehicle and the vehicle status information of the second vehicle meet a first condition; the voice reminder message is used for indicating the driving status of the second vehicle;

[0020] The state adjustment module is used to adjust the driving state of the first vehicle when the vehicle state information of the first vehicle and the vehicle state information of the second vehicle meet a second condition.

[0021] In one possible implementation, the state adjustment module is used to reduce the driving speed of the first vehicle when the vehicle state information of the first vehicle and the vehicle state information of the second vehicle meet the second condition; the second condition includes that the driving speed of the first vehicle is greater than a first specified speed and the distance between the first vehicle and the second vehicle is less than a first specified length.

[0022] In a possible implementation, the vehicle state control device further includes: a second receiving module and a lane adjustment module;

[0023] A second receiving module is used to receive vehicle status information of a third vehicle sent by a third vehicle; the third vehicle is a vehicle located within a specified range behind the first vehicle;

[0024] A lane adjustment module is used to change the driving lane of the first vehicle from the first lane to the second lane when the vehicle status information of the second vehicle and the vehicle status information of the third vehicle meet a third condition; the third condition includes that the heading angle of the second vehicle located in the first lane is less than a first specified angle, the heading angle of the third vehicle located in the first lane is less than a second specified angle, the driving speed of the third vehicle located in the second lane is less than a second specified speed and the distance between the third vehicle and the first vehicle is greater than a second specified length.

[0025] In a possible implementation, the vehicle state control device also includes: an information sending module, used to send prompt information to a third vehicle during the process of adjusting the driving state of the first vehicle; the prompt information is used to indicate the change of the driving state of the first vehicle; the third vehicle is a vehicle located within a specified range behind the first vehicle.

[0026] In a possible implementation, the vehicle state control device also includes: a stop adjustment module, which is used to stop adjusting the driving state of the first vehicle when receiving a user control instruction; the user control instruction includes at least one of the following: the brake pedal is pressed, the brake pedal is pressed for a time greater than a specified time, the warning light of the first vehicle is turned off, and the emergency braking state is released.

[0027] On the other hand, a computer device is provided, which includes a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set are loaded and executed by the processor to implement the vehicle state control method as described above.

[0028] On the other hand, a computer-readable storage medium is provided, wherein at least one instruction, at least one program, a code set or an instruction set is stored in the storage medium, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by a processor to implement the vehicle state control method as described above.

[0029] In another aspect, a computer program product is provided, the computer program product comprising a computer program, the computer program being stored in a computer-readable storage medium. A processor of a computer device reads the computer program from the computer-readable storage medium, and the processor executes the computer program, so that the computer device executes the vehicle state control method provided in the above-mentioned various optional implementations.

[0030] The technical solution provided by this application may have the following beneficial effects:

[0031] In a scenario where a first vehicle is in a driving state (such as high-speed driving), a second vehicle located in front of the first vehicle can send the vehicle status information of the second vehicle (such as speed, position, etc.) to the first vehicle through direct communication between vehicles; thereafter, the first vehicle can combine the vehicle status information of the first vehicle with the vehicle status information of the second vehicle to issue an early warning to the user of the first vehicle or adjust the vehicle status (such as speed, driving lane, etc.) by itself; this solution adopts a direct communication method within the area with a short data transmission path, which not only simply and efficiently realizes the timeliness and accuracy of the early warning, but also can dynamically adjust the vehicle driving strategy according to the real-time situation, effectively avoid potential dangers, reduce the pressure on the driver, and thus ensure driving safety and improve traffic efficiency.

[0032] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0034] Figure 1 is a schematic diagram of an implementation environment of a vehicle state control method provided by an exemplary embodiment of the present application;

[0035] Figure 2 is a flow chart of a vehicle state control method provided by an exemplary embodiment of the present application;

[0036] Figure 3 It is a structural schematic diagram of a simple, small-scale and efficient high-speed vehicle rear-end collision and lane congestion early warning intervention system provided by an exemplary embodiment of the present application;

[0037] Figure 4 It is a flow chart of a control method of a simple, small-scale and efficient high-speed vehicle rear-end collision and lane congestion warning intervention system provided by an exemplary embodiment of the present application;

[0038] Figure 5 is a block diagram of a vehicle state control device provided by an exemplary embodiment of the present application;

[0039] Figure 6 It is a structural diagram of a computer device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0041] 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 implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0042] The terms used in the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the present disclosure. The singular forms "a", "said" and "the" used in the present disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0043] It should be understood that although the terms first, second, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first vehicle may also be referred to as the second vehicle, and similarly, the second vehicle may also be referred to as the first vehicle. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0044] Please refer to Figure 1 , which shows a schematic diagram of an implementation environment of a vehicle state control method provided by an exemplary embodiment of the present application. Figure 1 As shown, the implementation environment may include: a first vehicle 110 and at least one second vehicle 120, wherein the distance between the second vehicle 120 and the first vehicle 110 does not exceed a specified threshold (such as one kilometer). The second vehicle 120 includes a front vehicle of the first vehicle 110 and a rear vehicle of the first vehicle 110.

[0045] The first vehicle 110 includes a data collection unit 110a, a direct communication unit 110b, and a decision control unit 110c, and the second vehicle 120 includes a data collection unit 120a, a direct communication unit 120b, and a decision control unit 120c.

[0046] The above-mentioned data acquisition unit 110a and data acquisition unit 120a are used to collect vehicle status information of the first vehicle 110 and the second vehicle 120, and may include a speed sensor, a vehicle-mounted positioning and navigation antenna, a lane-level navigation system, an inertial measurement unit (IMU), an advanced driving assistance system (ADAS) sensor, and the like. Among them, the speed sensor is installed on the wheel or the transmission, and measures the rotation speed of the wheel and converts it into the driving speed of the first vehicle 110 and the second vehicle 120. The vehicle-mounted positioning and navigation antenna is installed on the roof, and obtains the real-time position information of the first vehicle 110 and the second vehicle 120 by receiving signals from satellites or base stations. The lane-level navigation system combines high-precision maps and GPS signals, identifies lane lines through cameras, or uses radar and laser radar (LiDAR) for environmental perception, thereby determining the lanes where the first vehicle 110 and the second vehicle 120 are located. The inertial measurement unit (IMU) integrates an accelerometer and a gyroscope, and can provide information such as acceleration and angular velocity of the first vehicle 110 and the second vehicle 120. Through algorithm fusion, the attitude and heading of the first vehicle 110 and the second vehicle 120 can be estimated. Advanced driver assistance system (ADAS) sensors include cameras, radars, and lidars, etc. These sensors can not only be used for environmental perception, but also can assist in determining the driving position and heading angle of the first vehicle 110 and the second vehicle 120 through algorithm processing.

[0047] The direct communication unit 110b and the direct communication unit 120b are wireless communication devices used to transmit and receive vehicle-to-vehicle communication (V2V) information such as warning information and vehicle status information with adjacent vehicles or infrastructure. For example, the direct communication unit 110b and the direct communication unit 120b are responsible for real-time transmission of vehicle status information (such as speed, acceleration, position, and heading angle) of vehicles within a one-kilometer range, thereby realizing wireless information sharing between the first vehicle 110 and the second vehicle 120.

[0048] The above-mentioned decision control unit 110c and decision control unit 120c are used to adjust the vehicle state of the vehicle, such as driving speed, driving path, etc., according to the vehicle state information of the vehicle and the vehicle state information of the adjacent vehicles. Exemplarily, the decision control unit 110c and decision control unit 120c may include a data fusion and analysis module and an execution and control module. Among them, the data fusion and analysis module integrates high-precision combined navigation sensor data and vehicle wireless communication technology (Vehicle to Everything, V2X) communication information, and uses the vehicle analysis module to analyze data technology to accurately identify potential rear-end collision risks and signs of congestion, predict vehicle behavior trends, and generate warning signals and intervention suggestions. After receiving the instructions from the decision module, the execution and control module implements active driving intervention, such as adjusting the vehicle speed, changing lanes, etc., through the vehicle's execution system (advanced driver assistance system) or directly acting on the vehicle control unit.

[0049] Exemplarily, when the first vehicle 110 is in a driving state, the data acquisition unit 110a of the first vehicle 110 acquires the vehicle status information of the first vehicle 110 and sends it to the decision control unit 110c; the vehicle status information is used to indicate the driving data of the vehicle. The first vehicle can receive the vehicle status information of the second vehicle 120 sent by the second vehicle 120 through the direct communication unit 120b through the direct communication unit 110b; the second vehicle 120 is a vehicle located within a specified range in front of the first vehicle 110; the vehicle status information of the second vehicle 120 is acquired by the data acquisition unit 120a of the second vehicle 120 and sent to the direct communication unit 120b. When the decision control unit 110c determines that the vehicle status information of the first vehicle 110 and the vehicle status information of the second vehicle 120 meet the first condition, the decision control unit 110c of the first vehicle 110 can play a voice reminder message; the voice reminder message is used to indicate the driving state of the second vehicle 120. When the decision control unit 110c determines that the vehicle status information of the first vehicle 110 and the vehicle status information of the second vehicle 120 satisfy the second condition, the decision control unit 110c of the first vehicle 110 may adjust the driving status of the first vehicle 110 .

[0050] Please refer to Figure 2 , which shows a flow chart of a vehicle state control method provided by an exemplary embodiment of the present application. Wherein, the method is executed by a first vehicle. Optionally, the vehicle may be Figure 1 The first vehicle 110 in the system is shown. Figure 2 As shown, the method may include step 210 , step 220 , step 230 and step 240 .

[0051] Step 210: When the first vehicle is in a driving state, obtain vehicle state information of the first vehicle; the vehicle state information is used to indicate driving data of the vehicle.

[0052] In an embodiment of the present application, when the first vehicle is in a driving state, the data acquisition unit of the first vehicle can collect vehicle status information of the first vehicle and send the collected vehicle status information to the decision control unit.

[0053] Optionally, the first vehicle may send the vehicle status information of the first vehicle to the second vehicle and the third vehicle. Exemplarily, the data acquisition unit of the first vehicle may also send the collected vehicle status to the direct communication unit of the first vehicle, and the direct communication unit of the first vehicle may send the vehicle status information of the first vehicle to the direct communication unit of the second vehicle and the direct communication unit of the third vehicle; accordingly, the direct communication unit of the second vehicle and the direct communication unit of the third vehicle may send the vehicle status information of the first vehicle to the decision control unit of the second vehicle and the decision control unit of the third vehicle.

[0054] The vehicle status information includes at least one of the following:

[0055] 1) Vehicle speed: refers to the distance the vehicle moves per unit time, describing the speed of the vehicle's movement, and can be measured by a speed sensor installed on the wheel or transmission system. For example, an optical speed sensor detects the pulse signal generated by blocking light when the wheel rotates, and calculates the vehicle speed based on the relationship between the wheel circumference and the pulse frequency; for another example, an electromagnetic speed sensor uses the principle of electromagnetic induction to calculate the speed based on the induced electromotive force generated by the change in the magnetic field when the wheel rotates.

[0056] 2) Vehicle acceleration: refers to the speed of the vehicle's speed change, which is the derivative of speed with respect to time. It reflects the dynamic characteristics of the vehicle during acceleration or deceleration and can be measured by an acceleration sensor. For example, in a micro-electromechanical system acceleration sensor, when the vehicle accelerates or decelerates, the tiny mass block inside the sensor will produce a corresponding displacement, which will be converted into an electrical signal, and after processing, the acceleration value of the vehicle can be obtained.

[0057] 3) Vehicle driving position: refers to the specific geographical location of the vehicle in the road network and the lane information. Accurate driving position information is of great significance for navigation, traffic management and safe driving. The Global Positioning System (GPS) is the basic means of obtaining the driving position of the vehicle. It determines the latitude and longitude coordinates of the vehicle by receiving satellite signals, thereby determining the approximate position of the vehicle on the earth. However, it is difficult to be accurate to the lane level by GPS alone. In order to more accurately determine the lane where the vehicle is located, other technologies are usually combined. For example, vision-based lane recognition technology uses a camera installed on the vehicle to capture road images, and analyzes the shape, color and position of the lane line through an image recognition algorithm to determine the position of the vehicle in the lane; there is also technology based on high-precision maps and sensor fusion. The high-precision map contains detailed road information, such as lane width, curvature, slope, etc., combined with real-time perception data from sensors such as radar and lidar, the driving position (lane) of the vehicle can be determined more accurately.

[0058] 4) Vehicle heading angle: refers to the angle between the longitudinal axis of the vehicle (forward direction) and a reference direction (usually due north), which describes the direction of travel of the vehicle. For example, the vehicle heading angle can be measured by an electronic compass. The electronic compass uses the characteristics of the earth's magnetic field and detects the direction of the magnetic field through a magnetic sensor to determine the vehicle's heading angle relative to the magnetic north direction. For another example, the global positioning system (GPS) and the continuous recording of the vehicle's position coordinates at different times can be used to calculate the direction of the vehicle's motion trajectory and obtain the heading angle. For another example, the gyroscope in the inertial measurement unit (IMU) can be used to measure the vehicle's angular velocity. The vehicle's heading change can also be obtained by integrating the angular velocity to determine the heading angle.

[0059] Step 220: Receive vehicle status information of a second vehicle sent by a second vehicle; the second vehicle is a vehicle located within a specified range in front of the first vehicle.

[0060] Wherein, the second vehicle is the preceding vehicle of the first vehicle. Optionally, the second vehicle may be Figure 1 The second vehicle 120 in the system shown. Exemplarily, the above-mentioned specified range can be one kilometer, or other ranges, which are not limited in the present application. That is, the second vehicle is a vehicle located within one kilometer in front of the first vehicle.

[0061] Exemplarily, the data acquisition unit of the second vehicle can acquire the vehicle status information of the second vehicle, and send the acquired vehicle status information to the direct communication unit of the second vehicle. In other words, the second vehicle can acquire the vehicle status information of the second vehicle through the data acquisition unit of the second vehicle, and send the vehicle status information of the second vehicle to the direct communication unit of the first vehicle; accordingly, the direct communication unit of the first vehicle can receive the vehicle status information of the second vehicle, and send the vehicle status information of the second vehicle to the decision control unit of the first vehicle.

[0062] In the embodiment of the present application, the first vehicle and the second vehicle use a direct communication method within the region, the data transmission path is short, and it does not need to be sent to the cloud. It is sent after being processed by the cloud, which can achieve the effect of rapid response and real-time control, and is suitable for application scenarios with extremely high real-time requirements. For example, when the first vehicle and the second vehicle are both driving on the highway, when the speed of the second vehicle in front of the first vehicle suddenly decreases, the first vehicle can quickly obtain this change, and then the first vehicle can adjust the speed, lane and other operations in time to ensure driving safety and improve traffic efficiency.

[0063] Step 230: When the vehicle status information of the first vehicle and the vehicle status information of the second vehicle satisfy a first condition, play a voice reminder message; the voice reminder message is used to indicate the driving status of the second vehicle.

[0064] In an embodiment of the present application, after the first vehicle obtains the vehicle status information of the first vehicle and receives the vehicle status information of the second vehicle, the decision control unit can determine whether the vehicle status information of the first vehicle and the vehicle status information of the second vehicle meet the first condition.

[0065] The first condition is a specified condition pre-stored in the first vehicle and used to determine whether a voice reminder message needs to be played. Exemplarily, the vehicle status information of the first vehicle and the vehicle status information of the second vehicle satisfying the first condition may be that the driving speed of the second vehicle is less than a specified speed (such as 30 km / h), and the distance between the first vehicle and the second vehicle is less than a specified length (such as 200 meters).

[0066] Optionally, in the process of playing the voice reminder message, the first vehicle may play the voice reminder message in the following manner:

[0067] Pre-recorded voice prompts: The first vehicle can play pre-recorded voices, such as "There is a car ahead, please slow down" or "The vehicle ahead slows down, please keep a safe distance". These voices are stored in the storage medium of the system. When the vehicle status information of the first vehicle and the vehicle status information of the second vehicle meet the first condition, the decision control unit of the first vehicle calls and plays them;

[0068] Text-to-speech technology: For more flexible needs, text-to-speech technology can be used to generate instant voice reminders. This method allows different warning messages to be dynamically generated according to specific circumstances, thereby providing a more personalized reminder service.

[0069] It should be noted that after the first vehicle plays the voice reminder message, the driver of the first vehicle can actively respond to the content of the voice reminder message, such as taking measures such as slowing down to maintain a safe distance between vehicles.

[0070] Step 240: When the vehicle status information of the first vehicle and the vehicle status information of the second vehicle satisfy a second condition, adjusting the driving status of the first vehicle.

[0071] In the embodiment of the present application, after the first vehicle obtains the vehicle status information of the first vehicle and receives the vehicle status information of the second vehicle, the decision control unit can determine whether the vehicle status information of the first vehicle and the vehicle status information of the second vehicle meet the second condition. If the vehicle status information of the first vehicle and the vehicle status information of the second vehicle meet the second condition, it means that a rear-end collision is about to occur or there is lane congestion ahead.

[0072] The second condition is a specified condition pre-stored in the first vehicle and used to determine whether the driving state of the first vehicle needs to be adjusted. Exemplarily, the vehicle state information of the first vehicle and the vehicle state information of the second vehicle satisfying the second condition may be that the driving speed of the first vehicle is greater than a specified speed (such as 80 km / h), and the distance between the first vehicle and the second vehicle is less than a specified length (such as 100 meters).

[0073] Optionally, the adjusting the driving state of the first vehicle includes at least one of the following: adjusting the driving speed of the first vehicle, adjusting the driving lane of the first vehicle, and adjusting the driving direction of the first vehicle. Exemplarily, the first vehicle may perform safe emergency slow braking.

[0074] Optionally, during the process of adjusting the driving state of the first vehicle, the first vehicle may turn on the double flashes to remind vehicles behind the first vehicle of the current state of the first vehicle.

[0075] To summarize, in the scheme shown in the embodiment of the present application, when the first vehicle is in a driving state (such as high-speed driving), the second vehicle located in front of the first vehicle can send the vehicle status information (such as speed, position, etc.) of the second vehicle to the first vehicle through a direct communication method between vehicles; thereafter, the first vehicle can combine the vehicle status information of the first vehicle with the vehicle status information of the second vehicle to issue a warning to the user of the first vehicle or adjust the vehicle status (such as speed, driving lane, etc.) by itself; this scheme adopts a direct communication method within the area with a short data transmission path, which not only realizes the timeliness and accuracy of the warning in a simple and efficient manner, but also can dynamically adjust the vehicle driving strategy according to the real-time situation, effectively avoid potential dangers, reduce the pressure on the driver, and thus ensure driving safety and improve traffic efficiency.

[0076] Based on the above Figure 2 In the solution in the embodiment shown, in a possible implementation solution, the above step 240 can be implemented as follows:

[0077] Step 240a: When the vehicle status information of the first vehicle and the vehicle status information of the second vehicle meet a second condition, reduce the driving speed of the first vehicle; the second condition includes that the driving speed of the first vehicle is greater than a first specified speed and the distance between the first vehicle and the second vehicle is less than a first specified length.

[0078] That is to say, when a rear-end collision is about to occur or there is lane congestion ahead, the first vehicle can avoid accidents such as collisions by reducing speed, thereby ensuring driving safety and improving traffic efficiency.

[0079] In the embodiment of the present application, in the process of reducing the driving speed of the first vehicle, the first vehicle can reduce the driving speed of the first vehicle through the braking system. The braking system refers to a series of specialized devices that apply a certain force to the wheels of the vehicle, thereby forcibly braking the vehicle to a certain extent. The braking system is composed of components such as a brake pedal, a brake master cylinder, a wheel cylinder, a brake pad, and a brake disc (drum).

[0080] Exemplarily, when the vehicle status information of the first vehicle and the vehicle status information of the second vehicle meet the second condition, the decision control unit of the first vehicle can send a braking command to the braking system of the first vehicle, and the braking command is used to instruct to reduce the driving speed of the first vehicle.

[0081] The first specified speed and the first specified length are pre-stored in the first vehicle and are critical conditions for determining whether the driving speed of the first vehicle needs to be reduced. For example, the first specified speed may be 80 km / h, and the first specified length may be 100 meters. The first specified speed and the first specified length may also be other pre-set values, which are not limited in this application.

[0082] Based on the solutions shown in the above embodiments of the present application, in a possible implementation scheme, the above vehicle state control method also includes step 250 and step 260.

[0083] Step 250: Receive vehicle status information of a third vehicle sent by a third vehicle; the third vehicle is a vehicle located within a specified range behind the first vehicle.

[0084] The third vehicle is the rear vehicle of the first vehicle. Figure 1 The second vehicle 120 in the system shown. Exemplarily, the above-mentioned specified range can be one kilometer, or other ranges, which are not limited in the present application. That is, the third vehicle is a vehicle located within one kilometer behind the first vehicle.

[0085] Exemplarily, the data acquisition unit of the third vehicle can acquire the vehicle status information of the third vehicle, and send the acquired vehicle status information to the direct communication unit of the third vehicle. That is, the third vehicle can acquire the vehicle status information of the third vehicle through the data acquisition unit of the third vehicle, and send the vehicle status information of the third vehicle to the direct communication unit of the first vehicle; correspondingly, the direct communication unit of the first vehicle can receive the vehicle status information of the third vehicle, and send the vehicle status information of the third vehicle to the decision control unit of the first vehicle.

[0086] In the embodiment of the present application, a direct communication method is adopted within the area between the first vehicle and the third vehicle. The data transmission path is short and does not need to be sent to the cloud. It is processed by the cloud before being sent, which can achieve the effect of rapid response and real-time control, and is suitable for application scenarios with extremely high real-time requirements.

[0087] Step 260: When the vehicle status information of the second vehicle and the vehicle status information of the third vehicle satisfy a third condition, the driving lane of the first vehicle is changed from the first lane to the second lane; the third condition includes that the heading angle of the second vehicle in the first lane is less than a first specified angle, the heading angle of the third vehicle in the first lane is less than a second specified angle, the driving speed of the third vehicle in the second lane is less than the second specified speed and the distance between the third vehicle and the first vehicle is greater than a second specified length.

[0088] In an embodiment of the present application, after receiving the vehicle status information of the second vehicle and the vehicle status information of the third vehicle, the first vehicle can determine through the decision control unit whether the vehicle status information of the second vehicle and the vehicle status information of the third vehicle satisfy the third condition.

[0089] The third condition is a specified condition pre-stored in the first vehicle and used to determine whether the driving lane of the first vehicle needs to be changed from the first lane to the second lane. For example, the first specified angle may be 3°, the second specified angle may be 3°, the second specified speed may be 80 km / h, and the second specified length may be 100 meters. The first specified angle, the second specified angle, the second specified speed, and the second specified length may also be other pre-set values, which are not limited in this application.

[0090] The embodiment of the present application shows a feasible solution for judging whether the driving lane of the first vehicle can be changed based on the vehicle status information of the second vehicle in front of the first vehicle and the vehicle status information of the third vehicle behind the first vehicle. When the vehicle status information of the second vehicle and the vehicle status information of the third vehicle meet the lane changing conditions, the first vehicle changes the driving lane from the first lane to the second lane, so as to ensure driving safety and improve traffic efficiency.

[0091] Based on the solutions shown in the above embodiments of the present application, in a possible implementation scheme, the above vehicle state control method further includes:

[0092] During the process of adjusting the driving state of the first vehicle, prompt information is sent to the third vehicle; the prompt information is used to indicate changes in the driving state of the first vehicle.

[0093] That is to say, when the first vehicle adjusts its driving state, the changes in the driving state can be sent to the third vehicle behind the first vehicle in a timely manner, so that the third vehicle can quickly obtain the changes in the driving state of the first vehicle and then adjust its own driving state in a timely manner to ensure driving safety. For example, when the first vehicle slows down, the third vehicle that is close to the first vehicle can slow down in time to avoid rear-end collision.

[0094] Exemplarily, the change in the driving state of the first vehicle includes at least one of the following: a change in the driving speed of the first vehicle, a change in the driving acceleration of the first vehicle, a change in the heading angle of the first vehicle, and a change in the driving lane of the first vehicle.

[0095] Optionally, the first vehicle may send the change of the driving state of the first vehicle to the direct communication unit of the third vehicle through the direct communication unit of the first vehicle. Accordingly, after receiving the change of the driving state of the first vehicle, the direct communication unit of the third vehicle sends the change of the driving state of the first vehicle to the decision control unit of the third vehicle. Afterwards, the decision control unit of the third vehicle determines whether the driving state of the third vehicle needs to be adjusted according to the change of the driving state of the first vehicle and the vehicle state information of the third vehicle.

[0096] Based on the solutions shown in the above embodiments of the present application, in a possible implementation scheme, the above vehicle state control method further includes:

[0097] When receiving a user control instruction, stop adjusting the driving state of the first vehicle; the user control instruction includes at least one of the following: the brake pedal is pressed, the brake pedal is pressed for a time longer than a specified time, the warning light of the first vehicle is turned off, and the emergency braking state is released.

[0098] That is to say, in the case of manual takeover of the first vehicle, the decision control unit of the first vehicle exits automatic control of the first vehicle and returns control to the user to avoid conflicts between automatic control and user control and ensure the safety of vehicle driving.

[0099] The brake pedal being stepped on means that the user steps on the brake pedal. For example, the first vehicle can determine whether the brake pedal is stepped on by a sensor signal of the brake pedal. The time for which the brake pedal is stepped on is greater than a specified time, which means that the user continues to step on the brake pedal. For example, the specified time can be 2s or other values, which is not limited in this application.

[0100] The warning light of the first vehicle is turned off, which means that the user manually turns off the warning light (such as the double flash). The emergency braking state is released, which means that the user manually releases the emergency braking state.

[0101] The present application also provides a vehicle control system, which includes a data acquisition unit, a direct communication unit, and a decision control unit;

[0102] A data acquisition unit, used for acquiring vehicle status information of the first vehicle when the first vehicle is in a driving state; the vehicle status information is used for indicating driving data of the vehicle;

[0103] The direct communication unit is used to receive vehicle status information of the second vehicle sent by the second vehicle; the second vehicle is a vehicle located within a specified range in front of the first vehicle;

[0104] A decision control unit, configured to play a voice reminder message when the vehicle status information of the first vehicle and the vehicle status information of the second vehicle meet a first condition; the voice reminder message is used to indicate the driving status of the second vehicle;

[0105] The decision control unit is used to adjust the driving state of the first vehicle when the vehicle state information of the first vehicle and the vehicle state information of the second vehicle meet the second condition.

[0106] Regarding the specific manner in which the vehicle control system, the engine control unit and the transmission control unit perform operations in the above-mentioned embodiment have been described in detail in the embodiment of the method, and will not be elaborated here.

[0107] The vehicle state control method shown in the above embodiment of the present application can be applied to a simple, small-range, efficient, and high-speed vehicle rear-end collision and road congestion warning intervention system control method.

[0108] In the modern transportation system, with the rapid increase in the number of vehicles and the deepening of urbanization, road safety issues have become increasingly serious. Rear-end collisions on highways and secondary disasters caused by lane congestion have become a problem that cannot be ignored. According to statistics, rear-end collisions and vehicle congestion are one of the main reasons for the decline in traffic efficiency and damage to the safety of public life and property. Especially when driving at high speeds, the driver's reaction time to the road conditions ahead is shortened. In addition, the kinetic energy of vehicles driving at high speeds is huge. Once a rear-end collision occurs, it often causes serious casualties and economic losses.

[0109] Current intelligent transportation systems and vehicle safety technologies, such as ADAS, adaptive cruise control, unmanned driving, and vehicle-road-cloud collaborative perception, can improve driving safety and road efficiency, but these systems mainly rely on the detection range of the vehicle's own sensors. The vehicle-road-cloud collaborative system is complex and costly. The response rate and warning for long-distance traffic incidents and unforeseen emergencies (such as sudden braking, accidents ahead, road closures, etc.) cannot be widely used in the short term, and cannot effectively prevent high-speed rear-end collisions and alleviate the safety hazards caused by congestion in the short term.

[0110] To solve the above problems, this control method does not require the concept of a cloud system, but adopts a direct communication method within the region to achieve real-time monitoring, accurate prediction and active intervention of the risk of high-speed vehicle rear-end collision and lane congestion. Through wireless communication and positioning systems between vehicles, vehicle status information (speed, acceleration, position, heading angle, etc.) data can be shared in real time, which not only achieves the timeliness and accuracy of early warning in a simple and efficient manner, but also can dynamically adjust the vehicle driving strategy according to the real-time situation, effectively avoid potential dangers, and reduce the pressure on drivers, thereby providing strong technical support for building a safe, efficient and green intelligent transportation system.

[0111] like Figure 3As shown, a simple, small-scale and efficient high-speed vehicle rear-end collision and lane congestion early warning intervention system includes a vehicle-mounted positioning and navigation antenna 1, a decision control unit 2, and a one-kilometer wireless communication device 3. Among them, the vehicle-mounted positioning and navigation antenna 1 is used to obtain the real-time position information of the vehicle, the decision control unit 2 is responsible for processing and analyzing the information obtained from the vehicle-mounted positioning and navigation antenna, and making decisions according to a preset algorithm, and the wireless communication device 3 is used to communicate with adjacent vehicles or infrastructure, and transmit and receive early warning information.

[0112] The one-kilometer wireless communication device 3 is a wireless transceiver in the vehicle-to-vehicle communication (V2V) module, responsible for real-time transmission of vehicle status (speed, acceleration, position, heading angle) information within a 1-kilometer range to achieve wireless information sharing between vehicles.

[0113] The decision control unit 2 includes a data fusion and analysis module and an execution and control module. The data fusion and analysis module integrates high-precision combined navigation sensor data and V2X communication information, and uses the data analysis technology of the vehicle analysis module to accurately identify potential rear-end collision risks and signs of congestion, predict vehicle behavior trends, and generate warning signals and intervention suggestions. After receiving the instructions from the decision module, the execution and control module implements active driving intervention, such as adjusting the vehicle speed, changing lanes, etc., through the vehicle's execution system (advanced driver assistance system) or directly acting on the vehicle control unit.

[0114] like Figure 4 As shown, the specific steps of a simple, small-scale and efficient control method for high-speed vehicle rear-end collision and lane congestion warning intervention system are as follows:

[0115] Step 1: Get the vehicle information within the range:

[0116] The vehicle-mounted positioning and navigation antenna 1 obtains the real-time position information of the vehicle, and after the vehicle starts, the heading angle of the corresponding vehicle can be obtained. The decision control unit 2 receives the position, heading angle, acceleration and other information of the adjacent vehicle through the one-kilometer wireless communication device 3.

[0117] Step 2: Analyze vehicle information and make decisions:

[0118] The decision control unit 2 analyzes the acquired vehicle information, including but not limited to position, speed, direction, etc. According to a preset algorithm or rule, it is determined whether there is a risk of rear-end collision or lane congestion.

[0119] Step 3: Decide whether to give a voice reminder:

[0120] If there is a risk, the decision control unit 2 will trigger the voice reminder function to remind the driver to pay attention to the situation ahead. If there is no risk, no voice reminder will be given.

[0121] Step 4: When danger is detected, perform emergency braking:

[0122] If the system detects an imminent rear-end collision or lane congestion, the decision control unit 2 will immediately activate the emergency braking function to avoid a collision.

[0123] Step 5: Manual intervention by pressing the accelerator pedal:

[0124] After emergency braking, if the driver steps on the accelerator pedal, the system will release the emergency braking state and restore normal driving control.

[0125] Step 6, restore normal control:

[0126] When the system confirms that the danger has been eliminated and the vehicle has returned to normal driving, the decision control unit 2 will return to the normal control mode.

[0127] In summary, this solution significantly improves driving safety in high-speed driving environments. Through real-time monitoring and intelligent analysis of vehicle status information within a one-kilometer range, the system can predict potential rear-end collision risks and congestion conditions in advance and send warning signals to drivers in a timely manner. Furthermore, the system can actively adjust the vehicle's driving strategy, such as immediate deceleration, lane change suggestions, or emergency avoidance measures, effectively avoiding high-speed rear-end collisions, significantly reducing traffic casualties, and providing a safer driving environment for vehicle drivers and passengers.

[0128] The implementation of this technical solution greatly reduces costs, can be quickly installed and applied in a short period of time, and reduces the psychological and physical burden on drivers. The intelligent warning and intervention function reduces the pressure on drivers to judge complex road conditions, allowing them to focus on road driving, reducing driving fatigue, simplifying driving operations, making the driving process easier, and improving driving experience and comfort.

[0129] Please refer to Figure 5 , which shows a block diagram of a vehicle state control device provided by an exemplary embodiment of the present application, the vehicle state control device can be implemented as all or part of a computer device by hardware or a combination of hardware and software to achieve the above Figure 2 All or part of the steps in the illustrated embodiments.

[0130] like Figure 5 As shown, the device comprises:

[0131] The first acquisition module 501 is used to acquire vehicle state information of the first vehicle when the first vehicle is in a driving state; the vehicle state information is used to indicate driving data of the vehicle;

[0132] The first receiving module 502 is used to receive vehicle status information of the second vehicle sent by the second vehicle; the second vehicle is a vehicle located within a specified range in front of the first vehicle;

[0133] The voice reminder module 503 is used to play a voice reminder message when the vehicle status information of the first vehicle and the vehicle status information of the second vehicle meet the first condition; the voice reminder message is used to indicate the driving status of the second vehicle;

[0134] The state adjustment module 504 is used to adjust the driving state of the first vehicle when the vehicle state information of the first vehicle and the vehicle state information of the second vehicle meet the second condition.

[0135] In one possible implementation, the state adjustment module 504 is used to reduce the driving speed of the first vehicle when the vehicle state information of the first vehicle and the vehicle state information of the second vehicle meet a second condition; the second condition includes that the driving speed of the first vehicle is greater than a first specified speed and the distance between the first vehicle and the second vehicle is less than a first specified length.

[0136] In a possible implementation, the vehicle state control device further includes: a second receiving module and a lane adjustment module;

[0137] The second receiving module is used to receive vehicle status information of a third vehicle sent by a third vehicle; the third vehicle is a vehicle located within a specified range behind the first vehicle;

[0138] A lane adjustment module is used to change the driving lane of the first vehicle from the first lane to the second lane when the vehicle status information of the second vehicle and the vehicle status information of the third vehicle meet the third condition; the third condition includes that the heading angle of the second vehicle located in the first lane is less than the first specified angle, the heading angle of the third vehicle located in the first lane is less than the second specified angle, the driving speed of the third vehicle located in the second lane is less than the second specified speed and the distance between the third vehicle and the first vehicle is greater than the second specified length.

[0139] In one possible implementation, the vehicle state control device also includes: an information sending module, used to send prompt information to the third vehicle during the process of adjusting the driving state of the first vehicle; the prompt information is used to indicate the change of the driving state of the first vehicle; the third vehicle is a vehicle located within a specified range behind the first vehicle.

[0140] In one possible implementation, the vehicle state control device also includes: a stop adjustment module, which is used to stop adjusting the driving state of the first vehicle when receiving a user control instruction; the user control instruction includes at least one of the following: the brake pedal is pressed, the brake pedal is pressed for a time greater than a specified time, the warning light of the first vehicle is turned off, and the emergency braking state is released.

[0141] One point that needs to be explained is that, when the device provided in the above embodiment realizes its function, it only uses the division of the above-mentioned functional modules as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0142] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method; the technical effects achieved by each module performing operations are the same as those in the embodiment of the method, and will not be elaborated here.

[0143] Please refer to Figure 6 , which shows a schematic diagram of the structure of a computer device provided by an exemplary embodiment of the present application. The computer device 600 includes a central processing unit (CPU) 601, a system memory 604 including a random access memory (RAM) 602 and a read-only memory (ROM) 603, and a system bus 605 connecting the system memory 604 and the central processing unit 601. The computer device 600 also includes a basic input / output system (I / O system) 606 that helps transmit information between various devices in the computer, and a large-capacity storage device 607 for storing an operating system 613, application programs 614 and other program modules 615.

[0144] The basic input / output system 606 includes a display 608 for displaying information and an input device 609 such as a mouse and a keyboard for user inputting information. The display 608 and the input device 609 are connected to the central processing unit 601 through an input / output controller 610 connected to the system bus 605. The basic input / output system 606 may also include an input / output controller 610 for receiving and processing inputs from a plurality of other devices such as a keyboard, a mouse, or an electronic stylus. Similarly, the input / output controller 610 also provides output to a display screen, a printer, or other types of output devices.

[0145] The mass storage device 607 is connected to the central processing unit 601 through a mass storage controller (not shown) connected to the system bus 605. The mass storage device 607 and its associated computer readable media provide non-volatile storage for the computer device 600. That is, the mass storage device 607 may include a computer readable medium (not shown) such as a hard disk or a CD-ROM (Compact Disc Read-Only Memory) drive.

[0146] Without loss of generality, computer readable media may include computer storage media and communication media. Computer storage media include volatile and non-volatile, removable and non-removable media implemented by any method or technology for storing information such as computer readable instructions, data structures, program modules or other data. Computer storage media include RAM (Random Access Memory), ROM (Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory or other solid-state storage technologies, CD-ROM, DVD (Digital Video Disc) or other optical storage, cassettes, magnetic tapes, disk storage or other magnetic storage devices. Of course, those skilled in the art will appreciate that computer storage media are not limited to the above. The above-mentioned system memory 604 and mass storage device 607 can be collectively referred to as memory.

[0147] The computer device 600 can be connected to the Internet or other network devices through a network interface unit 611 connected to the system bus 605 .

[0148] The memory also includes one or more programs, one or more programs are stored in the memory, and the central processing unit 601 implements the one or more programs by executing the one or more programs. Figure 2 All or part of the steps in the method shown.

[0149] In an exemplary embodiment, a chip is also provided. The chip includes a programmable logic circuit and / or program instructions. When the chip runs on a computer device, it is used to implement all or part of the steps of the method shown in the above embodiments of the present application.

[0150] In an exemplary embodiment, a computer program product is also provided, the computer program product includes computer instructions, the computer instructions are stored in a computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor reads and executes the computer instructions from the computer-readable storage medium to implement all or part of the steps of the method shown in the above-mentioned various embodiments of the present application.

[0151] In an exemplary embodiment, a computer-readable storage medium is also provided, in which a computer program is stored. The computer program is loaded and executed by a processor to implement all or part of the steps of the method shown in the above-mentioned embodiments of the present application.

[0152] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program. The above program may be stored in a computer-readable storage medium. The above storage medium may be a read-only memory, a disk or an optical disk, etc.

[0153] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented with hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein the communication media include any media that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that a general or special-purpose computer can access.

[0154] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A vehicle state control method, characterized in that: The method is performed by a first vehicle, and includes: When the first vehicle is in a driving state, obtaining vehicle state information of the first vehicle; the vehicle state information is used to indicate driving data of the vehicle; receiving vehicle status information of a second vehicle sent by a second vehicle; the second vehicle is a vehicle located within a specified range in front of the first vehicle; When the vehicle status information of the first vehicle and the vehicle status information of the second vehicle meet a first condition, playing a voice reminder message; the voice reminder message is used to indicate the driving status of the second vehicle; When the vehicle state information of the first vehicle and the vehicle state information of the second vehicle satisfy a second condition, the driving state of the first vehicle is adjusted.

2. The method according to claim 1, characterized in that When the vehicle state information of the first vehicle and the vehicle state information of the second vehicle satisfy a second condition, adjusting the driving state of the first vehicle includes: When the vehicle status information of the first vehicle and the vehicle status information of the second vehicle meet the second condition, the driving speed of the first vehicle is reduced; the second condition includes that the driving speed of the first vehicle is greater than a first specified speed and the distance between the first vehicle and the second vehicle is less than a first specified length.

3. The method according to claim 2, characterized in that The method further comprises: receiving vehicle status information of a third vehicle sent by a third vehicle; the third vehicle is a vehicle located within a specified range behind the first vehicle; When the vehicle status information of the second vehicle and the vehicle status information of the third vehicle satisfy a third condition, the driving lane of the first vehicle is changed from the first lane to the second lane; the third condition includes that the heading angle of the second vehicle located in the first lane is less than a first specified angle, the heading angle of the third vehicle located in the first lane is less than a second specified angle, the driving speed of the third vehicle located in the second lane is less than a second specified speed and the distance between the third vehicle and the first vehicle is greater than a second specified length.

4. The method according to any one of claims 1 to 3, characterized in that: The method further comprises: During the process of adjusting the driving state of the first vehicle, a prompt message is sent to a third vehicle; the prompt message is used to indicate the change of the driving state of the first vehicle; the third vehicle is a vehicle located within a specified range behind the first vehicle.

5. The method according to any one of claims 1 to 3, characterized in that: The method further comprises: When receiving a user control instruction, stop adjusting the driving state of the first vehicle; the user control instruction includes at least one of the following: the brake pedal is pressed, the brake pedal is pressed for a time longer than a specified time, the warning light of the first vehicle is turned off, and the emergency braking state is released.

6. A vehicle state control system, characterized in that: The system includes a data acquisition unit, a direct communication unit and a decision control unit; The data acquisition unit is used to obtain vehicle state information of the first vehicle when the first vehicle is in a driving state; The vehicle status information is used to indicate the driving data of the vehicle; The direct communication unit is used to receive vehicle status information of the second vehicle sent by the second vehicle; the second vehicle is a vehicle located within a specified range in front of the first vehicle; The decision control unit is configured to play a voice reminder message when the vehicle status information of the first vehicle and the vehicle status information of the second vehicle meet a first condition; The voice reminder message is used to indicate the driving status of the second vehicle; The decision control unit is used to adjust the driving state of the first vehicle when the vehicle state information of the first vehicle and the vehicle state information of the second vehicle meet a second condition.

7. A vehicle state control device, characterized in that: The device comprises: a first acquisition module, configured to acquire vehicle state information of the first vehicle when the first vehicle is in a driving state; the vehicle state information is used to indicate driving data of the vehicle; A first receiving module is used to receive vehicle status information of a second vehicle sent by a second vehicle; the second vehicle is a vehicle located within a specified range in front of the first vehicle; A voice reminder module, used for playing a voice reminder message when the vehicle status information of the first vehicle and the vehicle status information of the second vehicle meet a first condition; the voice reminder message is used for indicating the driving status of the second vehicle; The state adjustment module is used to adjust the driving state of the first vehicle when the vehicle state information of the first vehicle and the vehicle state information of the second vehicle meet a second condition.

8. A computer device, characterized in that: The computer device includes a processor and a memory, wherein the memory stores at least one computer instruction, and the at least one computer instruction is loaded and executed by the processor to implement the vehicle state control method as described in any one of claims 1 to 5.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores at least one computer instruction, and the computer instruction is loaded and executed by a processor to implement the vehicle state control method as described in any one of claims 1 to 5.

10. A computer program product, characterized in that The computer program product includes computer instructions, which are stored in a computer-readable storage medium; the computer instructions are read and executed by a processor of a computer device to implement the vehicle state control method as described in any one of claims 1 to 5.

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