Vehicle safe driving control method and system

Abstract

The invention discloses a vehicle safe driving control method and system and a vehicle, and relates to the technical field of safe driving. The method comprises the steps that after the vehicle is powered on, alcohol detection is conducted on a driver, the alcohol content of the driver is obtained, and when the alcohol content of the driver is smaller than a first alcohol content threshold value, the driver is started; the driver obtains the starting authority of a power source of the vehicle; after the vehicle is started, the alcohol concentration in a cab is monitored in real time, and the running speed of the vehicle is controlled based on the alcohol concentration in the cab. The method can be used for a new energy architecture and a fuel oil architecture, the driving speed of the vehicle is controlled based on the alcohol concentration in the cab, and the hidden danger of drunk driving can be reduced.

Description

Technical Field

[0001] The present application relates to the field of safe driving technology, and specifically to a vehicle safe driving control method and system. Background Art

[0002] With the rapid development of the global economy, people's living standards are constantly improving, and the use of cars is increasing. According to the current development trend of engineering vehicles, the new energy architecture has reached a certain scale, and the number of new energy vehicles is also increasing day by day. However, with this, traffic accidents caused by drunk driving are also increasing. With the rapid development of new energy vehicles, the current market share of new energy vehicles is rapidly increasing, and the requirements for safe driving of new energy vehicles are also increasing.

[0003] In order to achieve safe driving, many domestic automobile manufacturers have launched alcohol detection and locking devices. The existing alcohol detection and locking devices mainly install alcohol detection devices on the vehicle. The driver needs to undergo an alcohol test before driving the vehicle. The vehicle can only be driven when the alcohol content is within the standard range. If the driver's alcohol concentration is higher than the limit value during the test, the vehicle is in an unauthorized state and cannot be started.

[0004] However, the existing alcohol detection locking device has a serious loophole. A vehicle can be driven normally after only one alcohol test. On the one hand, if a sober person unlocks the vehicle and gives it to a drunk person to drive, there is still a risk of drunk driving. On the other hand, if the drunk driver does not undergo an alcohol test in accordance with the standard, that is, the detected alcohol content does not reach the threshold, allowing the vehicle to drive normally, there is also a risk of drunk driving.

[0005] In addition, the existing safe driving control methods are single. Even if the driver is not drunk driving, abnormal behavior due to fatigue or other reasons during driving may cause traffic accidents. Summary of the invention

[0006] The purpose of the embodiments of the present application is to provide a vehicle safe driving control method, system and vehicle to solve at least one problem existing in the prior art. The optimization and improvement of the technical solution is applicable to various types of vehicles, and is therefore also suitable for new energy engineering vehicles.

[0007] In order to achieve the above-mentioned purpose, the first aspect of the present application provides a vehicle safe driving control method, the method comprising: after the vehicle is powered on, performing an alcohol test on the driver to obtain the driver's alcohol content, when the driver's alcohol content is less than a first alcohol content threshold, the driver obtains the start permission of the vehicle's power source; after the vehicle is started, the alcohol concentration in the cab is monitored in real time, and one or more of the following processes are performed: when the alcohol concentration in the cab is less than the first alcohol concentration threshold, the vehicle drives normally; when the alcohol concentration in the cab is greater than or equal to the first alcohol concentration threshold and less than a second alcohol concentration threshold, the vehicle's driving speed is controlled based on the alcohol concentration in the cab, the higher the alcohol concentration in the cab, the lower the vehicle's driving speed; and when the alcohol concentration in the cab is greater than or equal to the second alcohol concentration threshold, the vehicle is controlled to stop running and lock the vehicle within a first preset time period, and the driver is prohibited from restarting the vehicle's power source within a second preset time period.

[0008] In an embodiment of the present application, before the alcohol test on the driver, it also includes: performing facial recognition on the driver to obtain facial information of the driver; and comparing the facial information of the driver with preset facial information of the vehicle. If the comparison result is consistent, it is determined that the match is successful, and the alcohol test on the driver is allowed. If the comparison result is inconsistent, it is determined that the match fails, and starting the power source of the vehicle is prohibited.

[0009] In an embodiment of the present application, the method also includes: when the driver's alcohol content is greater than or equal to a first alcohol content threshold and less than a second alcohol content threshold, a drunk driving alarm prompt is issued and the power source of the vehicle is prohibited from being started; and when the driver's alcohol content is greater than or equal to the second alcohol content threshold, a drunk driving alarm prompt is issued and the power source of the vehicle is prohibited from being started.

[0010] In an embodiment of the present application, the method also includes: after the vehicle is started, real-time monitoring of the driver's blinking behavior to obtain the driver's blinking frequency; and after the vehicle is started, real-time monitoring of the driver's abnormal limb behavior to obtain the driver's limb abnormality degree value, wherein the driver's abnormal limb behavior includes at least one of the following behaviors: drowsiness, the driver's image cannot be monitored within a third preset time period, smoking, nodding, and yawning.

[0011] In an embodiment of the present application, controlling the driving speed of the vehicle based on the alcohol concentration in the cab includes: calculating an alcohol concentration correction coefficient, and the calculation formula is: , in, is the alcohol concentration correction factor, is the alcohol concentration in the driving cabin, is the first correction coefficient, is the first correction value; calculate the intermediate value of the power source speed, the calculation formula is: , in, is the driver's blinking frequency, is the driver's limb abnormality degree value, is the proportionality coefficient, is the rated speed of the power source, is the fourth correction value; calculate the power source speed adjustment value, the calculation formula is: , in, is the power source speed correction coefficient, is a power source speed correction value; and adjusting the speed of the power source to the power source speed adjustment value to control the driving speed of the vehicle.

[0012] In an embodiment of the present application, the method also includes performing the following processing after obtaining the blinking frequency of the driver: when the blinking frequency of the driver is less than or equal to a first blinking frequency threshold, judging the blinking frequency to be abnormal, and reminding the driver of fatigue driving; when the blinking frequency of the driver is greater than a second blinking frequency threshold, judging the blinking frequency to be abnormal, and reminding the driver of eye abnormalities; and when the blinking frequency of the driver is greater than the first blinking frequency threshold and less than or equal to the second blinking frequency threshold, judging the blinking frequency to be normal.

[0013] In an embodiment of the present application, when the blinking frequency of the driver is less than or equal to the first blinking frequency threshold, the method further includes controlling the driving speed of the vehicle based on the blinking frequency, wherein the controlling the driving speed of the vehicle based on the blinking frequency includes calculating a blinking frequency correction coefficient, and the calculation formula is: , in, is the blink frequency correction factor, is the second correction coefficient, is the frequency coefficient, is the driver's blinking frequency, is the second correction value; calculate the intermediate value of the power source speed, the calculation formula is: , in, is the alcohol concentration in the driving cabin, is the driver's limb abnormality degree value, is the proportionality coefficient, is the rated speed of the power source, is the fourth correction value; calculate the power source speed adjustment value, the calculation formula is: , in, is the power source speed correction coefficient, is a power source speed correction value; and adjusting the speed of the power source to the power source speed adjustment value to control the driving speed of the vehicle.

[0014] In an embodiment of the present application, the real-time monitoring of the driver's abnormal limb behavior to obtain the driver's limb abnormality level value includes: when the driver is monitored to be smoking, nodding and / or yawning, the driver's limb abnormality level value is C1; when the driver is monitored to be drowsy and / or the driver's image cannot be monitored within a third preset time period, the driver's limb abnormality level value is C2; and when the driver's abnormal limb behavior is not monitored, the driver's limb abnormality level value is C3.

[0015] In an embodiment of the present application, after obtaining the driver's limb abnormality degree value, the following processing is performed: when the driver's limb abnormality degree value is C1, it is judged that the risk level is low at this time, and the driver is alarmed; when the driver's limb abnormality degree value is C2, it is judged that the risk level is high at this time, and the driving speed of the vehicle is controlled based on the limb abnormality degree value; and when the driver's limb abnormality degree value is C3, it is judged that there is no limb abnormality risk at this time, and the vehicle is driving normally.

[0016] In the embodiment of the present application, controlling the driving speed of the vehicle based on the limb abnormality degree value includes: calculating an abnormal behavior correction coefficient, and the calculation formula is: , in, is the abnormal behavior correction coefficient, is the third correction coefficient, is the degree of limb abnormality; calculate the middle value of the power source speed, the calculation formula is: , in, is the alcohol concentration in the driving cabin, is the driver's blinking frequency, is the proportionality coefficient, is the rated speed of the power source, is the fourth correction value; calculate the power source speed adjustment value, the calculation formula is: , in, is the power source speed correction coefficient, is a power source speed correction value; and adjusting the speed of the power source to the power source speed adjustment value to control the driving speed of the vehicle.

[0017] In an embodiment of the present application, the method further includes controlling the driving speed of the vehicle based on the alcohol concentration in the cab, the blinking frequency of the driver, and the degree of limb abnormality of the driver, including: calculating the alcohol concentration correction coefficient, the calculation formula is: , in, is the alcohol concentration correction factor, is the alcohol concentration in the driving cabin, is the first correction coefficient, is the first correction value; calculate the blink frequency correction coefficient, the calculation formula is: , in, is the blink frequency correction factor, is the second correction coefficient, is the frequency coefficient, is the driver's blinking frequency, is the second correction value; calculate the abnormal behavior correction coefficient, the calculation formula is: , in, is the abnormal behavior correction coefficient, is the third correction coefficient, is the degree of limb abnormality; calculate the middle value of the power source speed, the calculation formula is: , in, is the proportionality coefficient, is the rated speed of the power source, is the fourth correction value; calculate the power source speed adjustment value, the calculation formula is: , in, is the power source speed correction coefficient, is a power source speed correction value; and adjusting the speed of the power source to the power source speed adjustment value to control the driving speed of the vehicle.

[0018] In an embodiment of the present application, the method further includes: when the vehicle is controlled in speed or stops running, resuming normal driving after receiving an emergency control signal.

[0019] A second aspect of the present application provides a vehicle safety driving control system, the system comprising: an alcohol detection system for detecting the alcohol content of a driver to obtain the alcohol content of the driver, and for real-time monitoring of the alcohol concentration in the cab to obtain the alcohol concentration in the cab; a control system for any of the above-mentioned vehicle safety driving control methods; and a data transmission network system for uploading data from the alcohol detection system to a background server.

[0020] A third aspect of the present application provides a vehicle, which includes the above-mentioned vehicle safety driving control system.

[0021] Through the above technical solution, the driver's alcohol content is tested for the first time after the vehicle is powered on, and the alcohol concentration in the cab is monitored in real time after the vehicle is started. This helps to prevent a person who has not drunk alcohol from unlocking the vehicle and then giving the vehicle to a person who has drunk alcohol, and the detected alcohol content does not reach the threshold due to the non-standard driver detection method before the vehicle is started, thereby improving the accuracy of detecting whether the driver is driving under the influence of alcohol. After the vehicle is started, the vehicle's driving speed is reduced as the alcohol concentration in the cab increases. When the alcohol concentration in the cab is detected to be too high after the vehicle is started, the vehicle is controlled to stop and lock the vehicle, forcing the driver to stop and rest, thereby reducing the risk of drunk driving.

[0022] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. In the accompanying drawings: Figure 1 A schematic diagram of a process flow of a vehicle safe driving control method according to an embodiment of the present application is schematically shown; Figure 2 A schematic diagram of a process flow of a vehicle safe driving control method according to another embodiment of the present application is schematically shown; Figure 3 The schematic diagram shows the structure of a vehicle safety driving control system according to an embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific implementation methods described herein are only used to illustrate and explain the embodiments of the present application, and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0026] Figure 1 A schematic diagram of a vehicle safe driving control method according to an embodiment of the present application is shown as follows: Figure 1 As shown, the method includes the following two aspects.

[0027] S1: After the vehicle is powered on, an alcohol test is performed on the driver to obtain the alcohol content of the driver. When the alcohol content of the driver is less than a first alcohol content threshold, the driver obtains the starting authority of the power source of the vehicle.

[0028] S2: After the vehicle is started, the alcohol concentration in the cab is monitored in real time, and one or more of the following processes are performed: when the alcohol concentration in the cab is less than a first alcohol concentration threshold, the vehicle runs normally; when the alcohol concentration in the cab is greater than or equal to the first alcohol concentration threshold and less than a second alcohol concentration threshold, the vehicle's driving speed is controlled based on the alcohol concentration in the cab, and the higher the alcohol concentration in the cab, the lower the vehicle's driving speed; and when the alcohol concentration in the cab is greater than or equal to the second alcohol concentration threshold, the vehicle is controlled to stop running and locked within a first preset time period, and the driver is prohibited from restarting the power source of the vehicle within a second preset time period.

[0029] According to the drunk driving standard, a driver whose alcohol content in 100 ml of blood reaches 20-80 mg is considered to be driving under the influence of alcohol, and more than 80 mg is considered to be drunk driving. Therefore, the first alcohol content threshold can be set to 20 mg / 100 ml. When the driver's alcohol content is higher than 20 mg / 100 ml, the driver is prohibited from obtaining the start permission of the power source of the vehicle. In some embodiments, the first alcohol concentration threshold when the alcohol concentration in the cab is monitored in real time can correspond to the alcohol concentration in the cab when the alcohol content in 100 ml of the driver's blood reaches 20 mg, and the second alcohol concentration threshold can correspond to the alcohol concentration in the cab when the alcohol content in 100 ml of the driver's blood reaches 80 mg. In specific implementation, the first alcohol concentration threshold and the second alcohol concentration threshold also need to be adjusted according to the space size of different vehicles and the installation position of the alcohol detection device. The present invention does not limit the specific values ​​of the first alcohol concentration threshold and the second alcohol concentration threshold.

[0030] It should be noted that the technical solution proposed in the present invention is applicable to fuel vehicles as well as new energy vehicles, so the power source includes an engine and / or a motor, or other types of power sources.

[0031] In specific implementation, after the vehicle is powered on, the driver's alcohol content is tested for the first time, for example, the driver blows at the detection device with his mouth. If the driver's alcohol content is normal, the engine can be started normally. If the alcohol content exceeds the first alcohol content threshold, the driver is not allowed to obtain the engine start permission to prevent the driver from driving after drinking. After the vehicle is started, the alcohol concentration in the cab is monitored in real time. When the alcohol concentration in the cab is less than the first alcohol concentration threshold, the driver's alcohol content is judged to be normal and the vehicle can drive normally; when the alcohol concentration in the cab is greater than or equal to the first alcohol concentration threshold and less than the second alcohol concentration threshold, the driver's alcohol content is judged to be abnormal, and there is a hidden danger of drunk driving. At this time, the driving speed of the vehicle is controlled based on the alcohol concentration, and the driving speed of the vehicle is reduced as the alcohol concentration increases, and the driver is forced to stop and rest to improve the safety of the vehicle; when the alcohol concentration in the cab is greater than or equal to the second alcohol concentration threshold, the driver's alcohol content is judged to be too high, and if it continues to drive, it may cause a traffic accident. At this time, the vehicle stops running and locks the vehicle within the preset first time length, and an alarm signal is issued at the same time, reminding the driver to drive the vehicle to a safe area before the vehicle stops running, and reminding the surrounding vehicles to stay away from the vehicle. When the vehicle lock time reaches a third preset time, the vehicle lock is canceled and the driver's alcohol content is re-determined.

[0032] The vehicle safety driving control method proposed in the present invention not only detects the driver's alcohol content before the vehicle is started, but also continuously monitors the alcohol concentration in the cab while the vehicle is driving. On the one hand, even if a person who has not drunk alcohol unlocks the vehicle and hands the vehicle over to a person who has drunk alcohol to drive, the driver's drunk driving can be monitored during the driving of the vehicle, thereby reducing the risk of drunk driving. On the other hand, when the driver's alcohol content is detected before the vehicle is started, the detected alcohol content may not exceed the first alcohol content threshold because the driver's detection method is not standard, allowing the driver to start the power source normally, and the alcohol concentration in the cab is continuously monitored during the driving of the vehicle, further reducing the risk of drunk driving.

[0033] In an embodiment of the present application, the driver's alcohol content, alcohol concentration in the cab, alarm signals, vehicle location information and / or time information are also transmitted to the background server, thereby achieving all-round IoT intelligent control and improving the safety and timeliness of driver safety driving supervision.

[0034] Figure 2 A schematic diagram of a process flow of a vehicle safe driving control method according to another embodiment of the present application is shown as follows: Figure 2 As shown, in an embodiment of the present application, before the alcohol test on the driver, it also includes: performing facial recognition on the driver to obtain the driver's facial information; and comparing the driver's facial information with the preset facial information of the vehicle. If the comparison result is consistent, it is determined that the match is successful, and the alcohol test on the driver is allowed. If the comparison result is inconsistent, it is determined that the match fails, and starting the power source of the vehicle is prohibited.

[0035] By performing facial recognition to confirm whether the driver's facial information is consistent with the vehicle's preset facial information, special vehicles can be assigned to specific people, that is, only authorized personnel can drive the vehicle, which helps with vehicle management and responsibility division.

[0036] In the embodiment of the present application, the driver's face is recognized from time to time during the driving process of the vehicle. If the recognized face information is inconsistent with the preset face information of the vehicle, an alarm is issued and the alarm information is uploaded to the backend server. On the one hand, it prevents a sober person from unlocking the vehicle and then handing the vehicle over to a drunk person to drive, and on the other hand, it further ensures the division of responsibility for the vehicle.

[0037] In an embodiment of the present application, the method also includes: when the driver's alcohol content is greater than or equal to a first alcohol content threshold and less than a second alcohol content threshold, a drunk driving alarm prompt is issued and the power source of the vehicle is prohibited from being started; and when the driver's alcohol content is greater than or equal to the second alcohol content threshold, a drunk driving alarm prompt is issued and the power source of the vehicle is prohibited from being started.

[0038] Among them, if the alcohol content in 100 ml of blood reaches 80 mg or more, it is considered drunk driving, and the second alcohol content threshold can be set to 80 mg / 100 ml. When the alcohol content reaches the standard of driving after drinking or drunk driving, an alarm is issued accordingly, and the corresponding alarm information is uploaded to the background server, and the power source is prohibited from starting to avoid driving after drinking.

[0039] In an embodiment of the present application, the method also includes: after the vehicle is started, real-time monitoring of the driver's blinking behavior to obtain the driver's blinking frequency; and after the vehicle is started, real-time monitoring of the driver's abnormal limb behavior to obtain the driver's limb abnormality degree value, wherein the driver's abnormal limb behavior includes at least one of the following behaviors: drowsiness, the driver's image cannot be monitored within a third preset time period, smoking, nodding, and yawning.

[0040] Among them, the blinking frequency can be calculated by the PERCLOS algorithm, and the driver's abnormal limb behavior can be monitored by the driver state monitoring system (DSM), which are technologies known to ordinary technicians in the relevant fields and will not be discussed in detail here.

[0041] In an embodiment of the present application, controlling the driving speed of the vehicle based on the alcohol concentration in the cab includes the following steps.

[0042] Calculate the alcohol concentration correction factor using the following formula: , in, is the alcohol concentration correction factor, is the alcohol concentration in the driving cabin, is the first correction coefficient, is the first correction value.

[0043] Calculate the intermediate value of the power source speed using the following formula: , in, is the driver's blinking frequency, is the driver's limb abnormality degree value, is a proportional coefficient, which is used to indicate the degree of control of the vehicle speed by the alcohol concentration in the cab, the driver's blinking frequency and / or the driver's limb abnormality. is the rated speed of the power source, This is the fourth correction value.

[0044] Calculate the power source speed adjustment value, the calculation formula is: , in, is the power source speed correction coefficient, It is the correction value of power source speed.

[0045] The rotation speed of the power source is adjusted to the power source rotation speed adjustment value to control the driving speed of the vehicle.

[0046] It should be noted that the purpose to be achieved in the embodiment of the present application is to gradually reduce the vehicle's driving speed as the alcohol concentration in the cab increases, but there are differences between different vehicles, and the speeds to be controlled are also different. Therefore, the above-mentioned alcohol concentration correction coefficient, first correction coefficient, first correction value, proportional coefficient, fourth correction value, power source speed correction coefficient and power source speed correction value all need to be obtained through experimental tests based on the actual conditions of different vehicles.

[0047] In an embodiment of the present application, the method also includes performing the following processing after obtaining the blinking frequency of the driver: when the blinking frequency of the driver is less than or equal to a first blinking frequency threshold, judging the blinking frequency to be abnormal, and reminding the driver of fatigue driving; when the blinking frequency of the driver is greater than a second blinking frequency threshold, judging the blinking frequency to be abnormal, and reminding the driver of eye abnormalities; and when the blinking frequency of the driver is greater than the first blinking frequency threshold and less than or equal to the second blinking frequency threshold, judging the blinking frequency to be normal.

[0048] Generally speaking, the blinking frequency of a normal person is about 10-20 times / minute. When the blinking frequency is less than 10 times / minute or greater than 20 times / minute, there may be an abnormality. Therefore, the first blinking frequency threshold can be set to 10 times / minute, and the second blinking frequency threshold can be set to 20 times / minute. When the driver's blinking frequency is not within this range, the driver is reminded. Among them, when the blinking frequency is higher than 20 times / minute, it is generally an emergency, such as sand in the eyes or discomfort, etc. At this time, only an alarm reminder is needed to remind the driver, and the blinking frequency will generally decrease during fatigue driving. When the blinking frequency is less than or equal to 10 times / minute, the driver is judged to be fatigued driving, and the vehicle's driving speed needs to be controlled to improve driving safety. The control method includes the following steps.

[0049] Calculate the blink frequency correction coefficient, the calculation formula is: , in, is the blink frequency correction factor, is the second correction coefficient, is the frequency coefficient, is the driver's blinking frequency, is the second correction value.

[0050] Calculate the intermediate value of the power source speed using the following formula: , in, is the alcohol concentration in the driving cabin, is the driver's limb abnormality degree value, is the proportionality coefficient, is the rated speed of the power source, This is the fourth correction value.

[0051] Calculate the power source speed adjustment value, the calculation formula is: , in, is the power source speed correction coefficient, It is the correction value of power source speed.

[0052] The rotation speed of the power source is adjusted to the power source rotation speed adjustment value to control the driving speed of the vehicle.

[0053] The purpose to be achieved in the embodiment of the present application is to gradually reduce the vehicle's driving speed as the driver's blinking frequency decreases, which is the same as the above-mentioned control of the vehicle's driving speed based on the alcohol concentration in the cab. Due to the differences between different vehicles, the speeds to be controlled are also different. Therefore, the above-mentioned blinking frequency correction coefficient, the second correction coefficient, the frequency coefficient, the second correction value, the proportional coefficient, the fourth correction value, the power source speed correction coefficient and the power source speed correction value are all required to be obtained through experimental tests based on the actual conditions of different vehicles.

[0054] In an embodiment of the present application, the real-time monitoring of the driver's abnormal limb behavior to obtain the driver's limb abnormality level value includes: when the driver is monitored to be smoking, nodding and / or yawning, the driver's limb abnormality level value is C1; when the driver is monitored to be drowsy and / or the driver's image cannot be monitored within a third preset time period, the driver's limb abnormality level value is C2; and when the driver's abnormal limb behavior is not monitored, the driver's limb abnormality level value is C3.

[0055] It is understandable that different behaviors of the driver have different effects on driving safety. Smoking, nodding and yawning can be regarded as behaviors with lower risk. Therefore, when the driver's limb abnormality value is C1, it is judged that the risk level is low at this time, and only the driver needs to be alarmed. However, dozing off or failing to monitor the driver's image within the third preset time will have a greater impact on driving safety. Therefore, when the driver's limb abnormality value is C2, it is judged that the risk level is high at this time, and the driving speed of the vehicle is controlled based on the limb abnormality value. When no abnormal limb behavior of the driver is monitored, there is no driving safety problem, and it is judged that there is no limb abnormality risk at this time, and the vehicle drives normally. In addition, according to the different effects of different behaviors of the driver on driving safety, the limb abnormality value is ranked as C3<C1<C2.

[0056] In an embodiment of the present application, controlling the driving speed of the vehicle based on the limb abnormality degree value includes the following steps.

[0057] Calculate the abnormal behavior correction coefficient, the calculation formula is: , in, is the abnormal behavior correction coefficient, is the third correction coefficient, It is the degree of limb abnormality.

[0058] Calculate the intermediate value of the power source speed using the following formula: , in, is the alcohol concentration in the driving cabin, is the driver's blinking frequency, is the proportionality coefficient, is the rated speed of the power source, This is the fourth correction value.

[0059] Calculate the power source speed adjustment value, the calculation formula is: , in, is the power source speed correction coefficient, It is the correction value of power source speed.

[0060] The rotation speed of the power source is adjusted to the power source rotation speed adjustment value to control the driving speed of the vehicle.

[0061] It should be noted that in the above calculation, the value of C is C2. The purpose to be achieved in the embodiment of the present application is that the greater the degree of limb abnormality, the lower the vehicle's driving speed. Similar to the above-mentioned control of the vehicle's driving speed based on the alcohol concentration in the cab, due to the differences between different vehicles, the speeds to be controlled are also different. Therefore, the values ​​of the above-mentioned abnormal behavior correction coefficient, the third correction coefficient, the proportionality coefficient, the fourth correction value, the power source speed correction coefficient, and the power source speed correction value all need to be obtained through experimental tests based on the actual conditions of different vehicles.

[0062] It can be understood that the above-mentioned control method controls the driving speed of the vehicle based on the alcohol concentration in the cab, the driver's blinking frequency and the driver's limb abnormality level value respectively. When the alcohol concentration in the cab, the driver's blinking frequency and the driver's limb abnormality level value are all abnormal, that is, the alcohol concentration in the cab is greater than or equal to the first alcohol concentration threshold and less than the second alcohol concentration threshold, the driver's blinking frequency is less than or equal to the first blinking frequency threshold and the driver's limb abnormality level value is C2, the alcohol concentration correction coefficient, the blinking frequency correction coefficient and the abnormal behavior correction coefficient also affect the driving speed at the same time. At this time, the control of the vehicle driving speed includes the following steps.

[0063] Calculate the alcohol concentration correction factor using the following formula: , in, is the alcohol concentration correction factor, is the alcohol concentration in the driving cabin, is the first correction coefficient, is the first correction value.

[0064] Calculate the blink frequency correction coefficient, the calculation formula is: , in, is the blink frequency correction factor, is the second correction coefficient, is the frequency coefficient, is the driver's blinking frequency, is the second correction value.

[0065] Calculate the abnormal behavior correction coefficient, the calculation formula is: , in, is the abnormal behavior correction coefficient, is the third correction coefficient, It is the degree of limb abnormality.

[0066] Calculate the intermediate value of the power source speed using the following formula: , in, is the proportionality coefficient, is the rated speed of the power source, This is the fourth correction value.

[0067] Calculate the power source speed adjustment value, the calculation formula is: , in, is the power source speed correction coefficient, It is the correction value of power source speed.

[0068] The rotation speed of the power source is adjusted to the power source rotation speed adjustment value to control the driving speed of the vehicle.

[0069] It should be noted that the present invention is not limited to the above four situations to control the driving speed of the vehicle. When two of the following conditions are met: the alcohol concentration in the cab is greater than or equal to the first alcohol concentration threshold and less than the second alcohol concentration threshold, the driver's blinking frequency is less than or equal to the first blinking frequency threshold, and the driver's limb abnormality degree value is C2, the correction coefficient corresponding to the other condition is set to 1 by default for calculation. For example, when the alcohol concentration in the cab is greater than or equal to the first alcohol concentration threshold and less than the second alcohol concentration threshold, and the driver's blinking frequency is less than or equal to the first blinking frequency threshold, the correction coefficient corresponding to the other condition is set to 1 by default for calculation. is 1, and the calculation formula for the intermediate value of the power source speed is: , other situations can be deduced by analogy and will not be elaborated here.

[0070] Data transmission network alarm system: This system can effectively build a human-computer interaction platform, monitor the driver's safety behavior in a closed-loop manner, and establish a deep interaction mode with full range, full time and unlimited functions to achieve intelligent supervision, personnel identification, alcohol detection, data transmission, vehicle positioning, etc., to achieve all-round IoT intelligent control. The background data can effectively digitize and visualize the process, greatly improving the reliability of the data.

[0071] In an embodiment of the present application, the method further includes: when the vehicle is controlled in speed or stops running, resuming normal driving after receiving an emergency control signal.

[0072] When the vehicle is in a state of controlled speed or stopped running, in some cases, such as when the vehicle is in distress or in some emergency situations, the vehicle needs to resume normal driving. Therefore, the present invention also provides an emergency control method, such as setting an emergency button. When the driver actively triggers the emergency button, the vehicle can send an emergency control command to the background server. After receiving the command, the background sends an emergency control signal to control the vehicle to resume normal driving and escape from the critical situation.

[0073] Figure 3 A schematic diagram of the structure of a vehicle safety driving control system according to an embodiment of the present application is shown schematically. Figure 3 As shown, the system provided by the embodiment of the present application includes: an alcohol detection system, which is used to detect the alcohol content of the driver to obtain the alcohol content of the driver, and to monitor the alcohol concentration in the cab in real time to obtain the alcohol concentration in the cab; a control system, which is used to execute any of the above-mentioned vehicle safety driving control methods to control the driving speed by controlling the vehicle's own car controller; and a data transmission network system, which is used to upload the data of the alcohol detection system to a background server.

[0074] In an embodiment of the present application, the system also includes: a behavior monitoring system, including a face recognition unit, a blinking frequency recognition unit and a limb abnormality recognition unit, wherein the face recognition unit is used to obtain the driver's facial information, the blinking frequency recognition unit is used to obtain the driver's blinking frequency, and the abnormality recognition unit is used to obtain the driver's limb abnormality degree value.

[0075] In an embodiment of the present application, the data transmission network system is also used to upload the data of the behavior monitoring system, vehicle location information, and time information to the background server.

[0076] Through the vehicle safety driving control system proposed in the embodiment of the present application, a human-computer interaction platform can be effectively constructed, and the driver's safety behavior can be monitored in a closed-loop manner. A deep interaction mode with full range, full time and unlimited functions is established to achieve intelligent supervision, driver face recognition, alcohol detection, data transmission and vehicle positioning, etc., avoiding single safety driving control and realizing all-round IoT intelligent control. The backgroundization of data can effectively digitize and visualize the process, greatly improving the reliability of the data.

[0077] An embodiment of the present application also provides a vehicle, which includes the above-mentioned vehicle safety driving control system.

[0078] An embodiment of the present application also provides a machine-readable storage medium, on which instructions are stored, and the instructions are used to enable a machine to execute the above-mentioned vehicle safe driving control method.

[0079] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0080] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0081] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0082] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0083] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0084] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0085] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0086] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0087] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A vehicle safe driving control method, characterized in that: The method comprises: After the vehicle is powered on, an alcohol test is performed on the driver to obtain the alcohol content of the driver. When the alcohol content of the driver is less than a first alcohol content threshold, the driver obtains the starting authority of the power source of the vehicle; After the vehicle is started, the alcohol concentration in the driver's cabin is monitored in real time, and one or more of the following treatments are performed: When the alcohol concentration in the driving compartment is less than a first alcohol concentration threshold, the vehicle drives normally; When the alcohol concentration in the cab is greater than or equal to a first alcohol concentration threshold and less than a second alcohol concentration threshold, controlling the driving speed of the vehicle based on the alcohol concentration in the cab, wherein the higher the alcohol concentration in the cab, the lower the driving speed of the vehicle; and When the alcohol concentration in the cab is greater than or equal to a second alcohol concentration threshold, the vehicle is controlled to stop running and locked within a first preset time period, and the driver is prohibited from restarting the power source of the vehicle within a second preset time period.

2. The method according to claim 1, characterized in that Before the alcohol test on the driver, it also includes: Performing facial recognition on the driver to obtain facial information of the driver; and The driver's facial information is compared with the preset facial information of the vehicle. If the comparison results are consistent, it is determined that the match is successful and the driver is allowed to be tested for alcohol. If the comparison results are inconsistent, it is determined that the match fails and starting the power source of the vehicle is prohibited.

3. The method according to claim 1, characterized in that The method further comprises: When the alcohol content of the driver is greater than or equal to a first alcohol content threshold and less than a second alcohol content threshold, a drunk driving alarm is issued and the power source of the vehicle is prohibited from being started; and When the alcohol content of the driver is greater than or equal to a second alcohol content threshold, a drunk driving alarm is issued and starting of the power source of the vehicle is prohibited.

4. The method according to claim 1, characterized in that: The method further comprises: After the vehicle is started, the driver's blinking behavior is monitored in real time to obtain the driver's blinking frequency; and After the vehicle is started, the driver's abnormal limb behavior is monitored in real time to obtain the driver's limb abnormality degree value. The abnormal physical behavior of the driver includes at least one of the following behaviors: drowsiness, failure to monitor the driver's image within a third preset time period, smoking, nodding, and yawning.

5. The method according to claim 4, characterized in that Controlling the driving speed of the vehicle based on the alcohol concentration in the cab includes: Calculate the alcohol concentration correction factor using the following formula: ， in, is the alcohol concentration correction factor, is the alcohol concentration in the driving cabin, is the first correction coefficient, is the first correction value; Calculate the intermediate value of the power source speed using the following formula: ， in, is the driver's blinking frequency, is the driver's limb abnormality degree value, is the proportionality coefficient, is the rated speed of the power source, is the fourth revised value; Calculate the power source speed adjustment value, the calculation formula is: ， in, is the power source speed correction coefficient, is the power source speed correction value; and The rotation speed of the power source is adjusted to the power source rotation speed adjustment value to control the driving speed of the vehicle.

6. The method according to claim 4, characterized in that The method further includes performing the following processing after obtaining the blinking frequency of the driver: When the blinking frequency of the driver is less than or equal to a first blinking frequency threshold, determining that the blinking frequency is abnormal, and reminding the driver of fatigue driving; When the blinking frequency of the driver is greater than a second blinking frequency threshold, determining that the blinking frequency is abnormal, and reminding the driver of eye abnormality; as well as When the driver's blinking frequency is greater than the first blinking frequency threshold and less than or equal to the second blinking frequency threshold, it is determined that the blinking frequency is normal.

7. The method according to claim 6, characterized in that When the blinking frequency of the driver is less than or equal to a first blinking frequency threshold, the method further includes controlling the driving speed of the vehicle based on the blinking frequency, wherein controlling the driving speed of the vehicle based on the blinking frequency includes: Calculate the blink frequency correction coefficient, the calculation formula is: ， in, is the blink frequency correction factor, is the second correction coefficient, is the frequency coefficient, is the driver's blinking frequency, is the second correction value; Calculate the intermediate value of the power source speed using the following formula: ， in, is the alcohol concentration in the driving cabin, is the driver's limb abnormality degree value, is the proportionality coefficient, is the rated speed of the power source, is the fourth revised value; Calculate the power source speed adjustment value, the calculation formula is: ， in, is the power source speed correction coefficient, is the power source speed correction value; and The rotation speed of the power source is adjusted to the power source rotation speed adjustment value to control the driving speed of the vehicle.

8. The method according to claim 4, characterized in that The real-time monitoring of the abnormal limb behavior of the driver to obtain the abnormal limb degree value of the driver includes: When the driver is detected smoking, nodding and / or yawning, the driver's limb abnormality degree value is C1; When the driver is detected to be drowsy and / or the driver's image cannot be detected within a third preset time period, the driver's limb abnormality degree value is C2; and When no abnormal limb behavior of the driver is detected, the limb abnormality degree value of the driver is C3.

9. The method according to claim 8, characterized in that After obtaining the driver's limb abnormality degree value, the following processing is performed: When the driver's limb abnormality degree value is C1, it is determined that the risk level is low and an alarm is issued to the driver; When the driver's limb abnormality value is C2, it is determined that the risk level is high, and the driving speed of the vehicle is controlled based on the limb abnormality value; as well as When the driver's limb abnormality degree value is C3, it is determined that there is no limb abnormality risk at this time and the vehicle runs normally.

10. The method according to claim 9, characterized in that Controlling the driving speed of the vehicle based on the limb abnormality degree value includes: Calculate the abnormal behavior correction coefficient, the calculation formula is: ， in, is the abnormal behavior correction coefficient, is the third correction coefficient, is the value of the degree of limb abnormality; Calculate the intermediate value of the power source speed using the following formula: ， in, is the alcohol concentration in the driving cabin, is the driver's blinking frequency, is the proportionality coefficient, is the rated speed of the power source, is the fourth revised value; Calculate the power source speed adjustment value, the calculation formula is: ， in, is the power source speed correction coefficient, is the power source speed correction value; and The rotation speed of the power source is adjusted to the power source rotation speed adjustment value to control the driving speed of the vehicle.

11. The method according to claim 4, characterized in that The method further includes controlling the driving speed of the vehicle based on the alcohol concentration in the driving cabin, the blinking frequency of the driver, and the limb abnormality value of the driver, including: Calculate the alcohol concentration correction factor using the following formula: ， in, is the alcohol concentration correction factor, is the alcohol concentration in the driving cabin, is the first correction coefficient, is the first correction value; Calculate the blink frequency correction coefficient, the calculation formula is: ， in, is the blink frequency correction factor, is the second correction coefficient, is the frequency coefficient, is the driver's blinking frequency, is the second correction value; Calculate the abnormal behavior correction coefficient, the calculation formula is: ， in, is the abnormal behavior correction coefficient, is the third correction coefficient, is the value of the degree of limb abnormality; Calculate the intermediate value of the power source speed using the following formula: ， in, is the proportionality coefficient, is the rated speed of the power source, is the fourth revised value; Calculate the power source speed adjustment value, the calculation formula is: ， in, is the power source speed correction coefficient, is the power source speed correction value; and The rotation speed of the power source is adjusted to the power source rotation speed adjustment value to control the driving speed of the vehicle.

12. The method according to claim 1, characterized in that The method further comprises: When the vehicle is under speed control or stops running, it resumes normal running after receiving an emergency control signal.

13. A vehicle safety driving control system, characterized in that: The system comprises: The alcohol detection system is used to detect the alcohol content of the driver to obtain the alcohol content of the driver, and to monitor the alcohol concentration in the cab in real time to obtain the alcohol concentration in the cab; A control system for executing the vehicle safe driving control method according to any one of claims 1 to 12; and The data transmission network system is used to upload the data of the alcohol detection system to the backend server.

14. A vehicle, characterized in that: The vehicle includes the vehicle safe driving control system according to claim 13.

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