Auxiliary method, system, medium and equipment for safe driving in rainy days

Abstract

The invention discloses a rainy day safe driving auxiliary method, system, medium and equipment, and relates to the technical field of vehicle safe driving. The method comprises the following steps: acquiring weather conditions and road altitude parameters of a route section, evaluating a road danger level, and adjusting a route according to the road danger level; acquiring real-time road condition parameters and rainfall parameters in the advancing process according to the adjusted path, judging the water accumulation condition of the front road surface, and judging the safety coefficient of vehicle passing according to the water accumulation condition; and determining a vehicle safety driving scheme according to the safety coefficient of the vehicle. The system can detect and analyze road surfaces, vehicles and other related conditions, receive weather information on the way in advance, provide accurate early warning information for drivers according to different rainfall and road conditions, and cooperate with adjustment of part of vehicle related parts to improve the driving safety of vehicles in rainy environments.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle safe driving, and in particular to a method, system, medium and equipment for assisting safe driving in rainy days. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] With the rapid development of science and technology, the automobile industry is also constantly improving, and cars are gradually entering the lives of tens of millions of residents, bringing more convenient and comfortable travel experience to mankind. However, at present, there are still many situations that bring great safety hazards during driving, and there are no effective coping methods and technologies. For example, in the rainy season in the Jiangnan region, the rain may last for 2-3 weeks. Long-term rainy weather will cause the air humidity to increase, the road to accumulate water, the friction between the tires and the ground to decrease, and it is easy to slip, increase the braking distance, and affect driving safety; rain and fog will also reduce visibility. Raindrops on the front windshield, water on the side windows and rearview mirrors will affect the driver's field of vision, especially the splashes of the front car, which may seriously affect the driver's field of vision, increase the difficulty of driving, and even threaten life safety; when driving on low-lying roads or deep water, the vehicle is at risk of water entering the engine, which may cause the engine to stall or even seriously damage the engine. The existing measures for safe driving in rainy days mainly involve ABS anti-lock braking system, ESP body stability control system, etc. It should be noted that the above technologies have their own limitations and cost considerations in practical applications, and not all of them are suitable for personal daily driving. For most drivers, relying on visual observation, official warnings and traditional methods is still the main means.

[0004] The inventors found that the existing warning methods for rainy days are too simple and cannot provide accurate assistance for the amount of rainfall and roadside waterlogging. That is, some auxiliary systems cannot take effective countermeasures when encountering heavy rain or deeply flooded roads, and are prone to accidentally triggering rainy day assistance functions when encountering light rain or flat, high-altitude roads that do not require adjustment. In addition, the existing rainy day assistance system cannot provide early warnings in the pre-rain period or in local rainy areas, resulting in the vehicle's failure to take precautions in advance, causing property losses. Therefore, how to obtain all-round information on rainy days, provide rainy day assistance in advance, and minimize vehicle losses has become one of the problems that the existing technology urgently needs to solve. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a method, system, medium and equipment for assisting safe driving in rainy days, which can detect and analyze relevant conditions such as the road surface and the vehicle, receive weather information on the road in advance, and provide the driver with accurate warning information for different rainfall and road conditions, and cooperate with the adjustment of some vehicle-related components to improve the safety of vehicle driving in rainy conditions.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] A first aspect of the present invention provides a method for assisting safe driving in rainy weather, comprising the following steps:

[0008] Obtain weather conditions and road altitude parameters along the route, assess the road hazard level, and adjust the route based on the road hazard level;

[0009] While traveling along the adjusted path, the real-time road condition parameters and rainfall parameters are obtained to determine the water accumulation on the road ahead, and the safety factor of the vehicle passing is determined according to the water accumulation, wherein the safety factor includes three factors: low, medium and high;

[0010] The vehicle's safe driving plan is determined based on the vehicle's safety factor. When the safety factor is high, only a water accumulation warning prompt is given. When the safety factor is medium, the wading plan is determined by adjusting the vehicle's passing path and the functions of vehicle components. When the safety factor is low, it is not recommended that the vehicle wade through the water, and other methods should be considered to reach the destination.

[0011] Furthermore, the specific steps of obtaining the weather conditions and road altitude parameters of the route section, evaluating the road danger level, and adjusting the route according to the road danger level are as follows:

[0012] Get the rainfall conditions of the route in the future;

[0013] The water accumulation model is used to predict the deepest water depth of the route according to the rainfall conditions and the lowest elevation of the route;

[0014] The danger level is determined according to the deepest water depth, and the danger levels include safe, relatively safe and dangerous. If the danger level is dangerous, the path is adjusted.

[0015] Furthermore, an ultrasonic sensor is used to collect real-time road condition parameters, and a rain sensor is used to collect rainfall parameters.

[0016] Furthermore, the waterlogging situation includes the size of the waterlogging area, the depth of the waterlogging area and the proportion of the waterlogging area in the road.

[0017] Furthermore, water accumulation warning prompts include voice broadcasts and light prompts.

[0018] Furthermore, when the blind spot detection function recognizes that the vehicle coming from behind will quickly pass through the flooded area, it will provide voice and light prompts and assist the driver in controlling the steering wheel stability.

[0019] Furthermore, when it is detected that the vehicle is stalled on a flooded road, the engine restart function is prohibited, and an emergency call is automatically made and the vehicle's current information is notified.

[0020] A second aspect of the present invention provides a rainy day safety driving assistance system, comprising:

[0021] A route prediction module is configured to obtain weather conditions and road altitude parameters of the route section, evaluate the road danger level, and adjust the route according to the road danger level;

[0022] The road condition recognition module is configured to obtain real-time road condition parameters and rainfall parameters during the process of traveling along the adjusted path, determine the water accumulation situation on the road ahead, and determine the safety factor of the vehicle passing according to the water accumulation situation, wherein the safety factor includes three factors: low, medium and high;

[0023] The wading plan decision module is configured to determine the vehicle's safe driving plan based on the vehicle's safety factor. When the safety factor is high, only a water accumulation warning prompt is given. When the safety factor is medium, the wading plan is determined by adjusting the vehicle's passing path and the functions of vehicle components. When the safety factor is low, it is not recommended for the vehicle to wade through the water, and other methods to reach the destination are considered.

[0024] A third aspect of the present invention provides a medium having a program stored thereon, which, when executed by a processor, implements the steps of the method for assisting safe driving in rainy weather as described in the first aspect of the present invention.

[0025] The fourth aspect of the present invention provides a device, including a memory, a processor, and a program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the method for assisting safe driving in rainy days as described in the first aspect of the present invention are implemented.

[0026] One or more of the above technical solutions have the following beneficial effects:

[0027] The present invention discloses a method, system, medium and equipment for assisting safe driving in rainy days. The method detects and analyzes road conditions, vehicle conditions and other related conditions through an on-board ultrasonic sensor, gives the driver certain warning information, and cooperates with some vehicle-related functions to ensure the driving safety of the vehicle in rainy days as much as possible.

[0028] The present invention can predict water accumulation on the road to be traveled and change the route in advance, which greatly improves the safety of vehicle driving. During driving, if there are potholes on the road that cannot be predicted in advance, the water accumulation condition can be evaluated in real time and a corresponding wading plan can be formulated, which further ensures the safety of the vehicle.

[0029] The present invention uses multi-level safety warnings and sets different response decisions for different safety levels, thereby minimizing the loss of manpower and financial resources caused by vehicles mistakenly entering deep water areas, greatly improving driving safety, and providing theoretical support for the further development of autonomous driving.

[0030] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0032] Figure 1 This is a flow chart of a method for assisting safe driving in rainy weather in Embodiment 1 of the present invention;

[0033] Figure 2 Schematic diagram of the security level correspondence scheme in the first embodiment of the present invention. DETAILED DESCRIPTION

[0034] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or their combinations;

[0036] Embodiment 1:

[0037] Embodiment 1 of the present invention provides a method for assisting safe driving in rainy weather. Figure 1 As shown, the following steps are included:

[0038] Step 1: Obtain the weather conditions and road altitude parameters of the route, assess the road hazard level, and adjust the route according to the road hazard level.

[0039] Step 1.1: Get the rainfall conditions of the route in the future. The rainfall conditions include the rainfall amount, duration, and specific rainfall location before, during, and after the rainfall. Before the rainfall means that it has not started to rain, but it may rain on the way, and the rainfall information is estimated. During the rainfall means that it is currently raining on the route. After the rainfall means that the rainfall has ended, but there may be water on the road.

[0040] The above rainfall information can be obtained from the weather forecast.

[0041] Step 1.2: Use the waterlogging model to predict the deepest water depth of the route section based on rainfall conditions and the lowest elevation of the route section.

[0042] In this embodiment, the waterlogging model is constructed using a deep learning convolutional neural network, using the road data and rainfall in the existing database as a training set for training, and outputting the waterlogging depth. Find the lowest elevation section area of ​​the route section, obtain the road data of the area, and the road data includes the road width, the number of drainage outlets, and the elevation parameters of the road compared with the surrounding terrain. Use the waterlogging model to predict the waterlogging depth of the area.

[0043] Step 1.3: Determine the danger level according to the deepest water depth, wherein the danger level includes safe, relatively safe and dangerous. If the danger level is dangerous, adjust the route.

[0044] When the predicted water depth in step 1.2 is less than 15 cm, the danger level is safe. When it is between 15 cm and 30 cm, the danger level is relatively safe. When it is greater than 30 cm, the danger level is dangerous. At this time, the path needs to be adjusted and the route needs to be replanned.

[0045] The present invention can avoid danger in advance by using the above method to predict waterlogging on the road section before the journey begins, and prevent vehicles from encountering waterlogging on the return journey or taking a temporary detour during the journey, or mistakenly entering low-lying culverts and other sections, causing unnecessary losses. However, the above prediction process cannot accurately predict potholes on the road, so it is necessary to further detect and identify waterlogging in real time during the journey. The specific steps are as follows:

[0046] like Figure 1As shown, when traveling along the adjusted path, the user turns on the rainy day auxiliary function on the central control screen of the vehicle, and the ultrasonic sensor starts working to monitor the depth of water in front of the vehicle. When the depth of water is less than 20 cm, the system plays a voice reminder, and brightens the ambient light and tightens the seat belt for warning. When the water exceeds 20 cm, the system performs obstacle avoidance planning and bypasses the deepest part of the water according to the planned path. If it cannot be avoided, the path planning is re-performed. When the vehicle stalls and cannot move forward on a flooded section of road, the system will prohibit restarting the engine, turn on the hazard warning flasher, and automatically call the emergency rescue number to inform the vehicle's exact location, license plate number and current situation. At the same time, the water accumulation situation is evaluated in real time to provide support for users to judge the current situation. When passing through a flooded section of road, vehicles equipped with air suspension can automatically adjust the vehicle height to the highest state.

[0047] For vehicles equipped with blind spot detection function, if the system recognizes that a vehicle coming from behind will pass through a flooded area quickly, it will prompt the driver by playing a voice message "Pay attention to the vehicle coming from behind" and assist the driver in controlling the steering wheel stability.

[0048] In this way, the device can assist safe driving in rainy days. The specific steps are as follows:

[0049] Step 2: While traveling along the adjusted path, obtain real-time road condition parameters and rainfall parameters, determine the water accumulation situation on the road ahead, and determine the safety factor of the vehicle's passage based on the water accumulation situation.

[0050] Step 2.1: Obtain real-time traffic parameters and rainfall parameters.

[0051] In this embodiment, ultrasonic sensors are used to collect real-time road condition parameters, and rain sensors are used to collect rain parameters. The present invention uses ultrasonic sensors for data collection. Specifically, the present invention is equipped with ultrasonic sensors on the top and bottom of the vehicle. The ultrasonic sensor on the roof can emit ultrasonic waves at a certain angle to the horizontal plane to measure the depth of water in front of the car so that an early warning can be issued in advance. The ultrasonic sensor installed at the bottom of the vehicle can emit ultrasonic pulses downward to further detect the wading depth in real time. When the ultrasonic pulses emitted by the ultrasonic sensor encounter obstacles, the ultrasonic waves will be reflected back. They can propagate in the air, liquids, and even solids, but reflection will occur when encountering interfaces between different media. Therefore, this characteristic can be used to estimate the potential depth of the vehicle's wading. The ultrasonic sensor will transmit the collected data to the vehicle system, and the instrument screen will display the vehicle's wading depth in real time. According to the information recognized by the ultrasonic sensor, the system will make different judgments based on the depth of the water.

[0052] Step 2.2: Determine the water situation on the road ahead.

[0053] The water accumulation situation includes the size of the water accumulation area, the depth of the water accumulation and the proportion of the water accumulation area in the road. According to the water accumulation situation, the water accumulation can be divided into: small and shallow water accumulation, large and shallow water accumulation, small and deep water accumulation that can be bypassed, large and deep water accumulation that can be bypassed, small and deep water accumulation that cannot be bypassed and large and deep water accumulation that cannot be bypassed. Among them, the judgment of depth and size can be set by customization. In this embodiment, water accumulation with a depth of less than 20 cm is judged as shallow water accumulation, and water accumulation with a depth of more than 20 cm is judged as deep water accumulation. Water accumulation with a maximum position less than the distance between the wheels on both sides is judged as small water accumulation, and water accumulation with a maximum position greater than the distance between the wheels on both sides is judged as large water accumulation. In this way, when encountering smaller water accumulation, it can be crossed between the two wheels. The proportion of the water accumulation area in the road is determined according to the width of the road, that is, first according to the length of the widest position of the water accumulation, find two dividing points where the water accumulation depth is less than 20 cm. If at least one of the dividing points to the nearest road edge is greater than the width of the vehicle body, it is judged as bypassable water accumulation, otherwise it is non-bypassable water accumulation.

[0054] The present invention installs distance sensors, cameras and other equipment on both sides of the vehicle body, and can use existing methods such as target detection and sensor ranging to detect the road width.

[0055] Step 2.3: Determine the safety factor for vehicle passage based on the water accumulation situation.

[0056] The safety factor includes three factors: low, medium and high. The safety factor is customized according to the above water accumulation situation.

[0057] Among them, small and shallow water accumulation, large and shallow water accumulation, and small and deep water accumulation that can be bypassed are all set as situations with high safety factors. Large and deep water accumulation that can be bypassed and small and deep water accumulation that cannot be bypassed are all set as situations with medium safety factors. Large and deep water accumulation that cannot be bypassed is set as a situation with low safety factors.

[0058] Step 3: Determine the vehicle's safe driving plan based on the vehicle's safety factor, where Figure 2 As shown, when the safety factor is high, only a water accumulation warning prompt is given. When the safety factor is medium, the wading plan is determined by adjusting the vehicle's passing path and the functions of vehicle components. When the safety factor is low, it is not recommended to wade through the water, and other methods should be considered to reach the destination.

[0059] Step 3.1: When the safety factor of the water depth is detected to be high, only a water warning prompt is given. The water warning prompt includes voice broadcast and light prompt. The overall threat to vehicle safety is relatively small. The system will play a voice message "You are passing through a flooded section, please drive carefully" and the interior ambient light will flash yellow, reminding the driver that the vehicle is wading through water in these two ways.

[0060] Step 3.2: When it is detected that the safety factor of the accumulated water is medium and it may pose a threat to the vehicle, the system will first repeatedly play the voice message "The water here is deep and it is risky to continue driving" to warn the driver, reminding the driver that the water in the area is too deep and there is a risk of passing, giving the driver enough time to decide whether to continue or find an alternative route.

[0061] Afterwards, if the driver insists on passing through the flooded area, he or she should first observe the information of mobile obstacles and fixed obstacles on the road. Mobile obstacles include pedestrians and cars passing by, and fixed obstacles include vehicles parked on the roadside, stone piers, etc. In this embodiment, when planning the obstacle avoidance path, the part of the accumulated water with a depth greater than 20 cm is regarded as a fixed obstacle, which can simplify the obstacle avoidance process. The obstacle avoidance path of the vehicle is planned according to the fixed obstacles. When the mobile obstacle passes, the vehicle is guided to travel according to the planned obstacle avoidance path, or the automatic driving function is turned on to travel according to the obstacle avoidance path.

[0062] In a specific implementation, when the blind spot detection function recognizes that a vehicle coming from behind will quickly pass through a flooded area, it will provide voice and light prompts and assist the driver in controlling the steering wheel stability.

[0063] Specifically, for vehicles equipped with blind spot detection function, if it is identified that the vehicle coming from behind will quickly pass through the flooded area, in addition to the blind spot monitoring system's own light reminder, the system will remind the driver by playing a voice message "Please pay attention to the vehicle coming from behind" to avoid sudden fright to the driver to the greatest extent (when the vehicle behind passes through the flooded area quickly, it may splash huge water on the windshield, which will not only affect the field of vision but also cause fright), so that the driver can be prepared to deal with possible obstructed vision. At the same time, the system will assist the driver in controlling the steering wheel to ensure that the vehicle's driving direction will not change significantly due to the driver being frightened, causing the vehicle to roll over or cause a traffic accident.

[0064] In a specific embodiment, water wading safety is also increased by adjusting the functions of vehicle components.

[0065] Specifically, when a vehicle is detected passing through a flooded section, the vehicle equipped with air suspension can automatically adjust the vehicle height to the highest state to increase safe wading capabilities. When the vehicle is avoiding obstacles, the vehicle size can be reduced by automatically retracting the rearview mirror when necessary, so as to avoid obstacles smoothly.

[0066] Step 3.3: When the safety factor of water accumulation is detected to be low, there is a great risk of water entering the vehicle when the vehicle passes through. When the engine is turned off, the system will play a voice message "The water is deep here, it is recommended to stop passing". Secondly, the interior ambient light will flash red, and the seat belt will be tightened. The driver is warned through hearing, vision, and touch that the water ahead is too deep, please do not drive through this area. Since the water accumulation cannot be bypassed at this time, a new route is selected. In addition, when the safety factor of water accumulation is judged to be medium, although the water accumulation situation shows that it can be bypassed, if there are other obstacles blocking it and making it impossible to bypass, a new route is also selected.

[0067] In a specific implementation, when it is detected that the vehicle is stalled on a flooded road section, the engine restart function is prohibited, and an emergency call is automatically made and the vehicle's current information is notified.

[0068] Specifically, when the vehicle stalls and cannot move forward on a flooded road due to driver error or some other reasons, the system will first prohibit restarting the engine (because this may cause water to be sucked into the engine, causing serious damage), turn on the vehicle's hazard warning flashers (double flashes so that other vehicles can see their position and avoid collisions), and automatically call an emergency number (such as China's 110 or the insurance company's rescue hotline) to inform the vehicle's exact location, license plate number, and current situation. At the same time, the system will also evaluate the water accumulation in real time to provide support for users to judge the current situation.

[0069] The present invention avoids the occurrence of vehicle wading and breaking down accidents as much as possible through the monitoring of ultrasonic sensors, the control of the vehicle system, the calling of vehicle functions and the response to different wading solutions, thereby achieving an auxiliary effect of safe driving in rainy days. Especially at night or in conditions of poor visibility, it is difficult for the driver to intuitively judge the depth of water. The use of the method of the present invention can effectively reduce the safety hazards caused by blind wading.

[0070] Embodiment 2:

[0071] Embodiment 2 of the present invention provides a rainy day safety driving assistance system, including:

[0072] A route prediction module is configured to obtain weather conditions and road altitude parameters of the route section, evaluate the road danger level, and adjust the route according to the road danger level;

[0073] The road condition recognition module is configured to obtain real-time road condition parameters and rainfall parameters during the process of traveling along the adjusted path, determine the water accumulation situation on the road ahead, and determine the safety factor of the vehicle passing according to the water accumulation situation, wherein the safety factor includes three factors: low, medium and high;

[0074] The wading plan decision module is configured to determine the vehicle's safe driving plan based on the vehicle's safety factor. When the safety factor is high, only a water accumulation warning prompt is given. When the safety factor is medium, the wading plan is determined by adjusting the vehicle's passing path and the functions of vehicle components. When the safety factor is low, it is not recommended for the vehicle to wade through the water, and other methods to reach the destination are considered.

[0075] Embodiment three:

[0076] Embodiment 3 of the present invention provides a medium on which a program is stored. When the program is executed by a processor, the steps of the method for assisting safe driving in rainy weather as described in Embodiment 1 of the present invention are implemented.

[0077] Embodiment 4:

[0078] Embodiment 4 of the present invention provides a device, including a memory, a processor, and a program stored in the memory and executable on the processor. When the processor executes the program, the steps in the method for assisting safe driving in rainy days as described in Embodiment 1 of the present invention are implemented.

[0079] The steps involved in the above embodiments 2, 3 and 4 correspond to the method embodiment 1. For the specific implementation methods, please refer to the relevant description part of embodiment 1.

[0080] Those skilled in the art should understand that the modules or steps of the present invention described above can be implemented by a general-purpose computer device, or alternatively, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. The present invention is not limited to any specific combination of hardware and software.

[0081] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for assisting safe driving in rainy weather, characterized in that: The following steps are involved: Obtain weather conditions and road altitude parameters along the route, assess the road hazard level, and adjust the route based on the road hazard level; While traveling along the adjusted path, the real-time road condition parameters and rainfall parameters are obtained to determine the water accumulation on the road ahead, and the safety factor of the vehicle passing is determined according to the water accumulation, wherein the safety factor includes three factors: low, medium and high; The vehicle's safe driving plan is determined based on the vehicle's safety factor. When the safety factor is high, only a water accumulation warning prompt is given. When the safety factor is medium, the wading plan is determined by adjusting the vehicle's passing path and the functions of vehicle components. When the safety factor is low, it is not recommended that the vehicle wade through the water, and other methods should be considered to reach the destination.

2. The rainy day safety driving assistance method according to claim 1, characterized in that: The specific steps to obtain the weather conditions and road altitude parameters of the route section, evaluate the road danger level, and adjust the route according to the road danger level are as follows: Get the rainfall conditions of the route in the future; The water accumulation model is used to predict the deepest water depth of the route according to the rainfall conditions and the lowest elevation of the route; The danger level is determined according to the deepest water depth, and the danger levels include safe, relatively safe and dangerous. If the danger level is dangerous, the path is adjusted.

3. The rainy day safety driving assistance method according to claim 1, characterized in that: Ultrasonic sensors are used to collect real-time road condition parameters, and rain sensors are used to collect rainfall parameters.

4. The rainy day safety driving assistance method according to claim 1, characterized in that: The waterlogging situation includes the size of the waterlogging area, the depth of the waterlogging area and the proportion of the waterlogging area in the road.

5. The rainy day safety driving assistance method according to claim 1, characterized in that: Water accumulation warning prompts include voice broadcasts and light prompts.

6. The rainy day safety driving assistance method according to claim 1, characterized in that: When the blind spot detection function recognizes that the vehicle coming from behind will pass through the flooded area quickly, it will provide voice and light prompts and assist the driver in controlling the steering wheel steadily.

7. The rainy day safety driving assistance method according to claim 1, characterized in that: When it is detected that the vehicle is stalled on a flooded road, the engine restart function is prohibited, and an emergency call is automatically made and the vehicle's current information is notified.

8. A rainy day safety driving assistance system, characterized in that: include: A route prediction module is configured to obtain weather conditions and road altitude parameters of the route section, evaluate the road danger level, and adjust the route according to the road danger level; The road condition recognition module is configured to obtain real-time road condition parameters and rainfall parameters during the process of traveling along the adjusted path, determine the water accumulation situation on the road ahead, and determine the safety factor of the vehicle passing according to the water accumulation situation, wherein the safety factor includes three factors: low, medium and high; The wading plan decision module is configured to determine the vehicle's safe driving plan based on the vehicle's safety factor. When the safety factor is high, only a water accumulation warning prompt is given. When the safety factor is medium, the wading plan is determined by adjusting the vehicle's passing path and the functions of vehicle components. When the safety factor is low, it is not recommended for the vehicle to wade through the water, and other methods to reach the destination are considered.

9. A computer-readable storage medium, characterized in that: A plurality of instructions are stored therein, and the instructions are suitable for being loaded by a processor of a terminal device and executed by the rainy day safe driving assistance method described in any one of claims 1-7.

10. A terminal device, characterized in that: It includes a processor and a computer-readable storage medium, the processor is used to implement various instructions; the computer-readable storage medium is used to store multiple instructions, and the instructions are suitable for being loaded by the processor and executing the rainy day safe driving assistance method described in any one of claims 1-7.

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