Vehicle steering wheel operation detection method and device, electronic equipment and storage medium

Abstract

The invention discloses a vehicle steering wheel operation detection method and device, electronic equipment and a storage medium, and relates to the technical field of vehicle driving. The method comprises the following steps: acquiring a detection pressure value detected by at least one alternative pressure sensor on a vehicle steering wheel of a current vehicle; according to the detection pressure values of all the alternative pressure sensors of the current vehicle, the steering wheel handheld state and the steering wheel handheld force of a vehicle steering wheel are determined; and according to the steering wheel holding state and the steering wheel holding force of the vehicle steering wheel, carrying out normative detection on the vehicle steering wheel operation. According to the technical scheme, the detection cost of the vehicle steering wheel operation is reduced, the vehicle steering wheel operation can be rapidly detected, and therefore the vehicle driving safety is improved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle driving technology, and in particular to a vehicle steering wheel operation detection method, device, electronic equipment and storage medium. Background Art

[0002] With the continuous increase in the number of cars, driving safety issues are receiving increasing attention. In daily transportation, whether it is an ordinary private car or an operating vehicle such as a taxi, online car-hailing, or a long-distance truck, it is crucial to correct the improper behavior of holding the steering wheel. Because in an emergency, improper steering wheel holding behavior will make it impossible to control the vehicle in a timely and stable manner to perform risk avoidance operations, which may cause accidents that could have been avoided. Therefore, vehicle steering wheel operation detection is particularly important to ensure safe driving. This is not only responsible for the life safety of the driver, but also a guarantee for all traffic participants on the road.

[0003] Existing vehicle steering wheel operation detection methods are mainly based on images captured by cameras, detecting hand features in current information of the steering wheel, and judging whether the driver has both hands off the steering wheel based on the hand features.

[0004] However, this method first requires the collection of a large amount of labeled data to train the model, which is costly and involves the driver's privacy issues, and needs to be improved urgently. Summary of the invention

[0005] The present invention provides a vehicle steering wheel operation detection method, device, electronic equipment and storage medium, which reduce the detection cost of vehicle steering wheel operation, can quickly detect vehicle steering wheel operation, and thus improve vehicle driving safety.

[0006] According to one aspect of the present invention, a vehicle steering wheel operation detection method is provided, the method comprising:

[0007] Obtaining a detection pressure value detected by at least one candidate pressure sensor on a vehicle steering wheel of the current vehicle;

[0008] Determining a steering wheel grip state and a steering wheel grip strength of the vehicle steering wheel according to the detection pressure values ​​of each of the candidate pressure sensors of the current vehicle;

[0009] The vehicle steering wheel operation is normatively checked according to the steering wheel grip state and steering wheel grip strength of the vehicle steering wheel.

[0010] According to another aspect of the present invention, a vehicle steering wheel operation detection device is provided, the device comprising:

[0011] A detection pressure value acquisition module, used to acquire the vehicle driving state of the current vehicle and the detection pressure value detected by at least one candidate pressure sensor on the vehicle steering wheel;

[0012] A hand grip state detection module, used for determining a steering wheel hand grip state and a steering wheel hand grip strength of the vehicle steering wheel according to the vehicle driving state of the current vehicle and the detection pressure value of each of the candidate pressure sensors;

[0013] The operation normativeness detection module is used to perform normativeness detection on the vehicle steering wheel operation according to the steering wheel grip state and steering wheel grip strength of the vehicle steering wheel.

[0014] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0015] at least one processor; and

[0016] a memory communicatively connected to the at least one processor; wherein,

[0017] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the vehicle steering wheel operation detection method described in any embodiment of the present invention.

[0018] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the vehicle steering wheel operation detection method described in any embodiment of the present invention when executed.

[0019] According to another aspect of the present invention, a computer program product is provided. The computer program product includes a computer program. When the computer program is executed by a processor, the vehicle steering wheel operation detection method according to any embodiment of the present invention is implemented.

[0020] The technical solution of the embodiment of the present invention is to pre-set at least one alternative pressure sensor on the vehicle steering wheel, obtain the detection pressure value detected by at least one alternative pressure sensor on the vehicle steering wheel of the current vehicle, and determine the steering wheel grip state and steering wheel grip strength of the vehicle steering wheel based on the detection pressure values ​​of each alternative pressure sensor of the current vehicle, thereby realizing standardized detection of the vehicle steering wheel operation, reducing the detection cost of the vehicle steering wheel operation, and can quickly detect the vehicle steering wheel operation, thereby improving the vehicle driving safety.

[0021] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 is a flow chart of a vehicle steering wheel operation detection method provided according to Embodiment 1 of the present invention;

[0024] Figure 2 is a flow chart of a vehicle steering wheel operation detection method provided according to Embodiment 2 of the present invention;

[0025] Figure 3 is a flow chart of a vehicle steering wheel operation detection method provided according to Embodiment 2 of the present invention;

[0026] Figure 4 is a structural schematic diagram of a vehicle steering wheel operation detection device provided according to Embodiment 3 of the present invention;

[0027] Figure 5 It is a structural schematic diagram of an electronic device for implementing the vehicle steering wheel operation detection method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] Embodiment 1

[0031] Figure 1 The present invention provides a flowchart of a vehicle steering wheel operation detection method provided in the first embodiment of the present invention. The present invention can be applied to the case where a pressure sensor is used to detect the vehicle steering wheel operation. The method can be performed by a vehicle steering wheel operation detection device. The vehicle steering wheel operation detection device can be implemented in the form of hardware and / or software. The vehicle steering wheel operation detection device can be configured in an electronic device that carries the vehicle steering wheel operation detection function, such as a vehicle-mounted terminal.

[0032] See also Figure 1 The vehicle steering wheel operation detection method shown includes:

[0033] S110: Obtain a detection pressure value detected by at least one candidate pressure sensor on a vehicle steering wheel of the current vehicle.

[0034] The current vehicle may be the vehicle being driven at the current moment. At least one alternative pressure sensor may be pre-set on the vehicle steering wheel. The alternative pressure sensor may be used to monitor the driver's hand grip pressure on the vehicle steering wheel, thereby enabling detection of the steering wheel operation state of the current vehicle. Exemplarily, alternative pressure sensors may be set at the leftmost clockwise positions of 0°, 45°, 90°, 135°, 180°, 225°, 270°, 315° and 360° on the vehicle steering wheel. Thus, both the detection efficiency and the comprehensiveness of the vehicle steering wheel may be taken into account. The detected pressure value may be the pressure value detected by the alternative pressure sensor.

[0035] Specifically, at least one optional pressure sensor on the vehicle steering wheel may be used to detect a detection pressure value at a corresponding position of the vehicle steering wheel.

[0036] S120. Determine the steering wheel grip state and steering wheel grip strength of the vehicle steering wheel according to the detection pressure values ​​of each candidate pressure sensor of the current vehicle.

[0037] The steering wheel grip state can be used to characterize the driver's grip state of the vehicle's steering wheel. Exemplarily, the steering wheel grip state can include holding the steering wheel with both hands, holding the steering wheel with one hand, and not holding the steering wheel with both hands. Among them, holding the steering wheel with one hand and not holding the steering wheel with both hands are both irregular steering wheel operation behaviors. In an emergency, holding the steering wheel with one hand and not holding the steering wheel with both hands cannot timely and stably control the vehicle for risk avoidance operations, which may cause accidents that could have been avoided. Therefore, the detection of the steering wheel grip state of the vehicle's steering wheel is particularly important for vehicle safety. The steering wheel grip strength can be used to characterize the driver's grip on the vehicle's steering wheel. It can be understood that the steering wheel grip strength can be used to characterize the driver's control over the vehicle's steering wheel. Exemplarily, the steering wheel grip strength can include tight steering wheel grip strength, moderate steering wheel grip strength, and tight steering wheel grip strength.

[0038] Specifically, the detection pressure values ​​of the alternative pressure sensors of the current vehicle can be compared to detect whether there is an alternative pressure sensor whose detection pressure value difference exceeds the preset reference pressure difference; if so, the number of groups of alternative pressure sensors whose detection pressure value difference exceeds the preset reference pressure difference is counted; if there are 2 groups, it is determined that the steering wheel grip state of the vehicle steering wheel is two-handed steering wheel grip, and the higher detection pressure value of the 2 groups is compared with the preset tightness pressure range. If the higher detection pressure value of the 2 groups is less than the lower limit of the preset tightness pressure range, it is determined that the steering wheel grip of the vehicle steering wheel is loose; if the higher detection pressure value of the 2 groups is within the preset tightness pressure range, it is determined that the steering wheel grip of the vehicle steering wheel is moderate; if the higher detection pressure value of the 2 groups is greater than the upper limit of the preset tightness pressure range, it is determined that the steering wheel grip of the vehicle steering wheel is tight. If it is group 1, it is determined that the steering wheel grip state of the vehicle steering wheel is a single-handed steering wheel, and the higher detection pressure value in the same group is compared with the preset tightness pressure range. If the higher detection pressure value in the same group is less than the lower limit of the preset tightness pressure range, it is determined that the steering wheel grip of the vehicle steering wheel is loose; if the higher detection pressure value in the same group is within the preset tightness pressure range, it is determined that the steering wheel grip of the vehicle steering wheel is moderate; if the higher detection pressure value in the same group is greater than the upper limit of the preset tightness pressure range, it is determined that the steering wheel grip of the vehicle steering wheel is tight. If it is group 0, it is determined that the steering wheel grip state of the vehicle steering wheel is not held by both hands. Among them, the preset reference pressure difference can be used to detect the steering wheel grip state. The preset reference pressure difference can be the lower limit of the difference in detection pressure values ​​between the alternative pressure sensor at the corresponding position when holding the steering wheel and other alternative pressure sensors. The preset tightness pressure range can be a preset detection pressure value range for detecting the steering wheel grip. The preset reference pressure value and the preset tightness pressure range can be set and adjusted by a technician based on experience.

[0039] S130: Perform a standardization test on the vehicle steering wheel operation according to the steering wheel grip state and steering wheel grip strength of the vehicle steering wheel.

[0040] Specifically, when it is detected that the steering wheel grip state of the vehicle steering wheel is one-handed steering wheel, no hands are gripping the steering wheel, the steering wheel grip is loose or the steering wheel grip is tight, it can be determined that the vehicle steering wheel operation of the current vehicle is not standardized; when it is detected that the steering wheel grip state of the vehicle steering wheel is both hands gripping the steering wheel and the steering wheel grip is moderate, the vehicle steering wheel operation of the current vehicle is determined to be standardized.

[0041] The technical solution of the embodiment of the present invention is to pre-set at least one alternative pressure sensor on the vehicle steering wheel, obtain the detection pressure value detected by at least one alternative pressure sensor on the vehicle steering wheel of the current vehicle, and determine the steering wheel grip state and steering wheel grip strength of the vehicle steering wheel based on the detection pressure values ​​of each alternative pressure sensor of the current vehicle, thereby realizing standardized detection of the vehicle steering wheel operation, reducing the detection cost of the vehicle steering wheel operation, and can quickly detect the vehicle steering wheel operation, thereby improving the vehicle driving safety.

[0042] In an optional embodiment of the present invention, after the vehicle steering wheel operation is checked for standardization based on the steering wheel grip state and steering wheel grip strength of the vehicle steering wheel, it also includes: when it is detected that the vehicle steering wheel operation is not standardized, determining the type of irregular operation; synchronizing the irregular operation type and the corresponding operation timestamp to the outside-vehicle monitoring party; through the outside-vehicle monitoring party, statistics are collected on the driver's steering wheel operation according to the irregular operation type and the corresponding operation timestamp; through the outside-vehicle monitoring party, when it is detected that there is irregular operation in the driver's steering wheel operation that exceeds a preset irregular operation time, feeding back outside-vehicle voice reminder information to the driver, so that the driver can correct the irregular operation in time.

[0043] The irregular operation type may include one-handed steering wheel, two-handed steering wheel, loose steering wheel grip, tight steering wheel grip, high steering wheel operation position, or low steering wheel operation position. The operation timestamp may be used to identify the occurrence time of the vehicle steering wheel operation corresponding to the irregular operation type. The off-vehicle monitoring party may be a third party that monitors the vehicle steering wheel operation. The off-vehicle monitoring party may be used to monitor the steering wheel operation of the driver of different vehicles. Exemplarily, the off-vehicle monitoring party may include a traffic supervision department or a fleet management party. The steering wheel operation of the driver may be used to reflect the irregular operation of the vehicle steering wheel of the current vehicle by the driver. Exemplarily, the steering wheel operation of the driver may include the irregular operation type of the vehicle steering wheel of the current vehicle by the driver and the corresponding occurrence time. The preset irregular operation duration may be the upper limit of the duration of the irregular operation set in advance. The preset irregular operation duration may be used to detect the duration of the irregular operation of the current vehicle by the driver. If the driver's steering wheel operation contains irregular operations that exceed the preset irregular operation duration, it can be understood that the driver has irregular operations and has not been corrected after exceeding the preset irregular operation duration. At this time, the driver needs to be reminded. The external voice reminder information can be issued by the external monitoring party and is used to remind the driver to correct the irregular operation.

[0044] Specifically, after the vehicle steering wheel operation is checked for standardization based on the steering wheel grip state and steering wheel grip strength of the vehicle steering wheel, when it is detected that the vehicle steering wheel operation is not standardized, the type of irregular operation can be determined. The irregular operation type and the corresponding operation timestamp can be synchronized to the off-vehicle monitoring party. Through the off-vehicle monitoring party, the irregular operation type and the corresponding operation timestamp can be counted, and then the steering wheel operation of the driver can be counted. Through the off-vehicle monitoring party, when it is detected that there is an irregular operation that exceeds the preset irregular operation time in the steering wheel operation of the driver, the off-vehicle voice reminder information is fed back to the driver so that the driver can correct the irregular operation in time.

[0045] After the vehicle steering wheel operation is checked for compliance, this solution introduces off-vehicle monitoring and off-vehicle voice reminder information when irregular vehicle steering wheel operation is detected, thereby realizing the use of off-vehicle communication to remind the driver of irregular operations, facilitating the driver to correct irregular operations in a timely manner, and further improving the safety of vehicle driving.

[0046] Optionally, after the vehicle steering wheel operation is checked for standardization according to the steering wheel grip state and the steering wheel grip strength, the system further includes: when the vehicle steering wheel operation is detected to be irregular, feeding back in-vehicle voice reminder information to the driver, so that the driver can correct the irregular operation in time. The in-vehicle voice reminder and the out-vehicle voice reminder can be combined to realize timely reminder of the driver's steering wheel operation.

[0047] After conducting a standardized test on the vehicle steering wheel operation, when it is detected that the vehicle steering wheel operation is not standardized, an in-vehicle voice reminder message is introduced, and the in-vehicle communication method is used to remind the driver of the irregular operation, which is convenient for the driver to correct the irregular operation in time, thereby improving the safety of vehicle driving.

[0048] Embodiment 2

[0049] Figure 2A flow chart of a vehicle steering wheel operation detection method provided for the second embodiment of the present invention. Based on the above embodiments, the embodiment of the present invention concretizes "determining the steering wheel grip state and steering wheel grip strength of the vehicle steering wheel according to the detection pressure values ​​of each candidate pressure sensor of the current vehicle" as "obtaining the vehicle driving state of the current vehicle, and selecting a target pressure sensor from each candidate pressure sensor according to the vehicle driving state of the current vehicle, and determining the steering wheel grip state of the vehicle steering wheel according to the detection pressure value of the target pressure sensor; wherein the steering wheel grip state includes two-handed steering wheel grip, one-handed steering wheel grip and no-handed steering wheel grip; when the steering wheel grip state of the vehicle steering wheel is two-handed steering wheel grip, determining the steering wheel grip strength of the vehicle steering wheel according to the detection pressure values ​​of each candidate pressure sensor", introduces the detection of the vehicle driving state of the current vehicle, realizes the screening of the candidate pressure sensors based on the vehicle driving state, improves the detection efficiency of the steering wheel grip state, and at the same time, by detecting the steering wheel grip strength of the vehicle steering wheel when the steering wheel grip state of the vehicle steering wheel is two-handed steering wheel grip, the detection efficiency of the vehicle steering wheel operation is further improved. It should be noted that for the parts not described in detail in the embodiments of the present invention, reference may be made to the descriptions of other embodiments.

[0050] See also Figure 2 The vehicle steering wheel operation detection method shown includes:

[0051] S210: Obtain a detection pressure value detected by at least one candidate pressure sensor on a vehicle steering wheel of the current vehicle.

[0052] S220, obtaining the vehicle driving state of the current vehicle, and selecting a target pressure sensor from each candidate pressure sensor according to the vehicle driving state of the current vehicle, and determining the steering wheel grip state of the vehicle steering wheel according to the detection pressure value of the target pressure sensor.

[0053] The steering wheel gripping state may include gripping the steering wheel with both hands, gripping the steering wheel with one hand, and gripping the steering wheel with neither hand. The vehicle driving state may be used to indirectly characterize the control state of the steering wheel of the current vehicle. Exemplarily, the vehicle driving state may include a straight state and a turning state. In different vehicle driving states, the driver has different operating positions of the vehicle steering wheel. The target pressure sensor may be an alternative pressure sensor corresponding to the vehicle driving state. The correspondence between the vehicle driving state and the target pressure sensor may be pre-stored in the device. The alternative pressure sensors are screened based on the vehicle driving state, and the steering wheel gripping state of the vehicle steering wheel is determined based on the detection pressure value of the target pressure sensor. Compared with determining the steering wheel gripping state of the vehicle steering wheel based on the detection pressure values ​​of all the alternative pressure sensors, the computing resources of the device can be saved, thereby improving the detection efficiency of the steering wheel gripping state.

[0054] Specifically, a vehicle angle sensor can be used to detect the driving state of the current vehicle. According to the driving state of the current vehicle, a target pressure sensor corresponding to the driving state of the vehicle can be screened from the candidate pressure sensors. It can be detected whether the maximum value of the detection pressure difference between the detection pressure value of the target pressure sensor and the detection pressure values ​​of other candidate pressure sensors exceeds the preset reference pressure difference. If so, the number of target pressure sensors whose maximum value of the detection pressure difference exceeds the preset reference pressure difference is counted. If there are 2, it is determined that the steering wheel grip state of the vehicle steering wheel is two-handed. If there is 1, it is determined that the steering wheel grip state of the vehicle steering wheel is one-handed, and if there is 0, it is determined that the steering wheel grip state of the vehicle steering wheel is not both hands.

[0055] In an optional embodiment of the present invention, according to the vehicle driving state of the current vehicle, a target pressure sensor is screened from each candidate pressure sensor, including: when the current vehicle is in a straight state, the 0° direction position pressure sensor and the 180° direction position pressure sensor are determined as target pressure sensors from each candidate pressure sensor; when the current vehicle is in a turning state, the 0° direction position pressure sensor, the 180° direction position pressure sensor and the 270° direction position pressure sensor are determined as target pressure sensors from each candidate pressure sensor; according to the detection pressure value of the target pressure sensor, the vehicle steering wheel is determined The steering wheel hand-holding state includes: detecting whether the detection pressure values ​​of the target pressure sensors are continuously lower than the preset state detection pressure threshold; when it is detected that the detection pressure values ​​of the target pressure sensors are continuously greater than or equal to the preset state detection pressure threshold, determining that the steering wheel hand-holding state of the vehicle steering wheel is two-handed steering wheel holding; when it is detected that there is a single non-zero pressure value to be detected in the target pressure sensor, determining that the steering wheel hand-holding state of the vehicle steering wheel is one-handed steering wheel holding; when it is detected that the detection pressure values ​​of the target pressure sensors are continuously lower than the preset state detection pressure threshold, determining that the steering wheel hand-holding state of the vehicle steering wheel is not holding the steering wheel with both hands.

[0056] The 0° direction position pressure sensor can be used to detect the steering wheel operation on the leftmost side of the vehicle's steering wheel. The 180° direction position pressure sensor can be used to detect the steering wheel operation on the rightmost side of the vehicle's steering wheel. The 270° direction position pressure sensor can be used to detect the steering wheel operation on the bottom side of the vehicle's steering wheel. According to the operating habits of the driver of the vehicle's steering wheel, when the current vehicle is in a straight-ahead state, the driver usually operates the 0° direction position pressure sensor and the 180° direction position pressure sensor with both hands. When the current vehicle is in a turning state, the driver usually operates the 0° direction position pressure sensor and the 180° direction position pressure sensor with both hands; in addition, the 0° direction position pressure sensor and the 270° direction position pressure sensor can also be operated with both hands. Thus, the 270° direction position pressure sensor can be used to assist in determining the driver's operation of the vehicle's steering wheel when the current vehicle is in a turning state. The preset state detection pressure threshold can be used to detect whether the driver is holding the vehicle's steering wheel. The detection pressure values ​​of the target pressure sensor are continuously greater than or equal to the preset state detection pressure threshold, which can be understood as the driver is holding the steering wheel, and the hand holding position is the position of the target pressure sensor. There is a single non-zero pressure value to be detected in the target pressure sensor, which can be understood as the driver is holding the steering wheel, and holding the steering wheel with one hand. The detection pressure values ​​of the target pressure sensor are continuously lower than the preset state detection pressure threshold, which can be understood as the driver is not holding the steering wheel with both hands.

[0057] Specifically, when the current vehicle is in a straight-moving state, the 0° direction position pressure sensor and the 180° direction position pressure sensor can be determined as target pressure sensors among the candidate pressure sensors. When the current vehicle is in a turning state, the 0° direction position pressure sensor, the 180° direction position pressure sensor and the 270° direction position pressure sensor can be determined as target pressure sensors among the candidate pressure sensors. It can be detected whether the detection pressure values ​​of the target pressure sensors are continuously lower than the preset state detection pressure threshold. When it is detected that the detection pressure values ​​of the target pressure sensors are continuously greater than or equal to the preset state detection pressure threshold, it is determined that the steering wheel hand-gripping state of the vehicle steering wheel is two-handed steering wheel grip; when it is detected that there is a single non-zero pressure value to be detected in the target pressure sensor, it is determined that the steering wheel hand-gripping state of the vehicle steering wheel is one-handed steering wheel grip; when it is detected that the detection pressure values ​​of the target pressure sensors are continuously lower than the preset state detection pressure threshold, it is determined that the steering wheel hand-gripping state of the vehicle steering wheel is not two-handed steering wheel grip.

[0058] This solution selects a 0° direction position pressure sensor and a 180° direction position pressure sensor as target pressure sensors when the current vehicle is in a straight-moving state, and selects a 0° direction position pressure sensor, a 180° direction position pressure sensor and a 270° direction position pressure sensor as target pressure sensors when the current vehicle is in a turning state. By selecting typical target pressure sensors to detect the steering wheel hand-gripping state of the vehicle steering wheel, the detection efficiency of the steering wheel hand-gripping state can be improved; a preset state detection pressure threshold is introduced, and by detecting whether the detection pressure values ​​of the target pressure sensors are continuously lower than the preset state detection pressure threshold, when it is detected that the detection pressure values ​​of the target pressure sensors are continuously greater than or equal to the preset state detection pressure threshold, it is determined that the steering wheel hand-gripping state of the vehicle steering wheel is two-handed steering wheel gripping, when it is detected that there is a single non-zero pressure value to be detected in the target pressure sensor, it is determined that the steering wheel hand-gripping state of the vehicle steering wheel is one-handed steering wheel gripping, and when it is detected that the detection pressure values ​​of the target pressure sensors are continuously lower than the preset state detection pressure threshold, it is determined that the steering wheel hand-gripping state of the vehicle steering wheel is not two-handed steering wheel gripping, thereby further improving the detection efficiency of the steering wheel hand-gripping state.

[0059] S230: When the steering wheel grip state of the vehicle steering wheel is two-handed gripping of the steering wheel, determine the steering wheel grip strength of the vehicle steering wheel according to the detection pressure values ​​of each candidate pressure sensor.

[0060] Specifically, when the steering wheel grip state of the vehicle steering wheel is two-handed grip, the detection pressure values ​​of the alternative pressure sensors can be compared to obtain the maximum detection pressure of the vehicle steering wheel. The maximum detection pressure of the vehicle steering wheel can be compared with the preset tightness pressure range. If the maximum detection pressure of the vehicle steering wheel is less than the lower limit of the preset tightness pressure range, it is determined that the steering wheel grip of the vehicle steering wheel is loose; if the maximum detection pressure of the vehicle steering wheel is within the preset tightness pressure range, it is determined that the steering wheel grip of the vehicle steering wheel is moderate; if the maximum detection pressure of the vehicle steering wheel is greater than the upper limit of the preset tightness pressure range, it is determined that the steering wheel grip of the vehicle steering wheel is tight.

[0061] In an optional embodiment of the present invention, the steering wheel grip strength of the vehicle steering wheel is determined according to the detection pressure value of each alternative pressure sensor, including: determining the total detection pressure value of the vehicle steering wheel according to the detection pressure value of each alternative pressure sensor; obtaining a preset tightness pressure range, and comparing the total detection pressure value of the vehicle steering wheel with the preset tightness pressure range; when the total detection pressure value of the vehicle steering wheel is greater than the upper limit value of the preset tightness pressure range, determining that the steering wheel grip strength of the vehicle steering wheel is tight; when the total detection pressure value of the vehicle steering wheel is less than the lower limit value of the preset tightness pressure range, determining that the steering wheel grip strength of the vehicle steering wheel is loose.

[0062] The total detection pressure value may be the sum of the detection pressure values ​​of the vehicle steering wheel. The total detection pressure value may comprehensively reflect the tightness of the vehicle steering wheel operation. The preset tightness pressure range may be used as a reference range for detecting the steering wheel grip strength of the vehicle steering wheel. If the total detection pressure value of the vehicle steering wheel is greater than the upper limit value of the preset tightness pressure range, it may be understood that the steering wheel grip strength of the vehicle steering wheel is relatively tight. If the total detection pressure value of the vehicle steering wheel is within the preset tightness pressure range, it may be understood that the steering wheel grip strength of the vehicle steering wheel is moderate. If the total detection pressure value of the vehicle steering wheel is less than the lower limit value of the preset tightness pressure range, it may be understood that the steering wheel grip strength of the vehicle steering wheel is relatively loose.

[0063] Specifically, the detection pressure values ​​of each alternative pressure sensor can be summed to obtain the total detection pressure value of the vehicle steering wheel. A preset tightness pressure range can be obtained, and the total detection pressure value of the vehicle steering wheel and the preset tightness pressure range can be compared. When the total detection pressure value of the vehicle steering wheel is greater than the upper limit of the preset tightness pressure range, it can be determined that the steering wheel grip of the vehicle steering wheel is tight; when the total detection pressure value of the vehicle steering wheel is less than the lower limit of the preset tightness pressure range, it can be determined that the steering wheel grip of the vehicle steering wheel is loose.

[0064] This scheme introduces the total detection pressure value of the vehicle steering wheel. By presetting the tightness pressure range, the total detection pressure value of the vehicle steering wheel is detected, which can comprehensively determine the steering wheel grip strength of the vehicle steering wheel, thereby improving the accuracy of the steering wheel grip strength detection of the vehicle steering wheel.

[0065] In an optional embodiment of the present invention, after determining the steering wheel grip state of the vehicle steering wheel according to the detection pressure value of the target pressure sensor, it also includes: when the steering wheel grip state of the vehicle steering wheel is holding the steering wheel with both hands, dividing the alternative pressure sensors into regions to obtain upper semicircular region pressure sensors and lower semicircular region pressure sensors; summing the detection pressure values ​​of each upper semicircular region pressure sensor to obtain a total upper semicircular region pressure value, and summing the detection pressure values ​​of each lower semicircular region pressure sensor to obtain a total lower semicircular region pressure value; comparing the total upper semicircular region pressure value with the total lower semicircular region pressure value; when the total upper semicircular region pressure value is greater than the total lower semicircular region pressure value, determining that the steering wheel grip position of the vehicle steering wheel is higher; when the total lower semicircular region pressure value is less than the total lower semicircular region pressure value, determining that the steering wheel grip position of the vehicle steering wheel is lower.

[0066] The upper semicircular area pressure sensor may be an alternative pressure sensor located in the upper semicircular area of ​​the vehicle steering wheel. The lower semicircular area pressure sensor may be an alternative pressure sensor located in the lower semicircular area of ​​the vehicle steering wheel. The total pressure value of the upper semicircular area may be used to comprehensively reflect the hand grip strength in the upper semicircular area of ​​the vehicle steering wheel. The total pressure value of the lower semicircular area may be used to comprehensively reflect the hand grip strength in the lower semicircular area of ​​the vehicle steering wheel. The total pressure value of the upper semicircular area is greater than the total pressure value of the lower semicircular area, which may be understood as the driver's operating position of the vehicle steering wheel is biased above the vehicle steering wheel. The total pressure value of the lower semicircular area is less than the total pressure value of the lower semicircular area, which may be understood as the driver's operating position of the vehicle steering wheel is biased below the vehicle steering wheel. The total pressure value of the lower semicircular area is equal to the total pressure value of the lower semicircular area, which may be understood as the driver's operating position of the vehicle steering wheel is located in the middle of the vehicle steering wheel.

[0067] Specifically, after determining the steering wheel grip state of the vehicle steering wheel according to the detection pressure value of the target pressure sensor, when the steering wheel grip state of the vehicle steering wheel is two-handed grip, the alternative pressure sensors can be divided into regions to obtain upper semicircular region pressure sensors and lower semicircular region pressure sensors. The detection pressure values ​​of each upper semicircular region pressure sensor can be summed to obtain the total pressure value of the upper semicircular region, and the detection pressure values ​​of each lower semicircular region pressure sensor can be summed to obtain the total pressure value of the lower semicircular region. The total pressure value of the upper semicircular region and the total pressure value of the lower semicircular region can be compared. When the total pressure value of the upper semicircular region is greater than the total pressure value of the lower semicircular region, it is determined that the steering wheel grip position of the vehicle steering wheel is higher; when the total pressure value of the lower semicircular region is less than the total pressure value of the lower semicircular region, it is determined that the steering wheel grip position of the vehicle steering wheel is lower.

[0068] This scheme can improve the comprehensiveness and accuracy of vehicle steering wheel operation detection by further detecting the steering wheel grip position of the vehicle steering wheel when the steering wheel grip state of the vehicle steering wheel is that both hands are gripping the steering wheel after determining the steering wheel grip state of the vehicle steering wheel according to the detection pressure value of the target pressure sensor.

[0069] S240: Perform a standard inspection on the vehicle steering wheel operation according to the steering wheel grip state and steering wheel grip strength of the vehicle steering wheel.

[0070] The technical solution of the embodiment of the present invention introduces the detection of the current vehicle driving state, and based on the vehicle driving state, realizes the screening of alternative pressure sensors, thereby improving the detection efficiency of the steering wheel grip state. At the same time, by detecting the steering wheel grip strength of the vehicle steering wheel when the steering wheel grip state of the vehicle steering wheel is the steering wheel being gripped with both hands, the detection efficiency of the vehicle steering wheel operation is further improved.

[0071] Figure 3 FIG. 1 is a flow chart of a method for detecting vehicle steering wheel operation. Figure 3 This is a preferred embodiment of the present invention. Figure 3 The vehicle steering wheel operation detection method shown includes:

[0072] S310: Select a suitable position on the vehicle steering wheel to install an alternative pressure sensor, and use the alternative pressure sensor to detect the steering wheel grip state, steering wheel grip degree and steering wheel grip position of the vehicle steering wheel.

[0073] Specifically, with the center of the steering wheel as the center of the circle, alternative pressure sensors are placed at the leftmost clockwise positions of 0°, 45°, 90°, 135°, 180°, 225°, 270°, 315° and 360°, respectively, to monitor the position and strength of the driver's hands on the vehicle steering wheel. For the detection of both hands not holding the steering wheel, the vehicle angle sensor can be combined. When the vehicle is in a straight forward state or a straight backward state, if the detection pressure values ​​of the 0° direction position pressure sensor and the 180° direction position pressure sensor are both 0 or continuously lower than the preset state detection pressure threshold, it is judged that the hands are off the steering wheel (i.e., the hands are not holding the steering wheel). When the vehicle is in a turning forward state, a turning backward state or a U-turn state, the 270° direction position pressure sensor can be combined as an auxiliary judgment. If the 0° direction position pressure sensor, the 180° direction position pressure sensor and the 270° direction position pressure sensor are all 0 or lower than the preset state detection pressure threshold, it is judged that the hands are off the steering wheel. For the detection of one-handed steering wheel, if it is detected that only one of the alternative pressure sensors detects a detection pressure value, the detection pressure values ​​detected by the other alternative pressure sensors are all 0, or the detection pressure value detected by one alternative pressure sensor is much larger than the detection pressure value detected by any other alternative pressure sensor, it is judged that the steering wheel is held by one hand. On the premise that it is detected that both hands are holding the steering wheel, the hand-gripping force of the steering wheel can be detected. Specifically, the total value of the detection pressure detected by each alternative sensor can be judged by detecting that both hands are holding the steering wheel. If the total value of the detection pressure is less than the lower limit value of the preset tightness pressure range, it is judged that the hand-gripping force of the steering wheel is loose. If the total pressure value is detected to be within the preset tightness pressure range, it is judged that the hand-gripping force of the steering wheel is moderate. If the total value of the detection pressure is greater than the upper limit value of the preset tightness pressure range, it is judged that the hand-gripping force of the steering wheel is tight. On the premise that both hands are detected holding the steering wheel, the hand-gripping position of the steering wheel can be detected. Specifically, when the total pressure value of the upper semicircular area detected by each alternative sensor is much larger than the total pressure value of the lower semicircular area, it is judged that the steering wheel hand grip position of the vehicle steering wheel is higher; otherwise, it is judged that the steering wheel hand grip position of the vehicle steering wheel is lower.

[0074] S320: When irregular steering wheel operation is detected, in-vehicle voice reminder information is fed back to the driver through in-vehicle communication.

[0075] Among them, the vehicle angle sensor is used to obtain the turning angle information of the vehicle steering wheel. The alternative pressure sensor on the vehicle steering wheel is used to detect the pressure distribution of the vehicle steering wheel. The in-car voice reminder information can use the in-car communication method to remind the driver. Exemplarily, the in-car voice reminder information may include "Your steering wheel is not held properly, please hold the steering wheel with both hands", "You hold the steering wheel too tightly, please relax appropriately" or "You hold the steering wheel with both hands too high, please adjust the holding position" and so on.

[0076] Specifically, the vehicle angle sensor and the optional pressure sensor on the vehicle steering wheel can be used to collect data in real time. The real-time collected data of the vehicle angle sensor and the optional pressure sensor on the vehicle steering wheel can be first processed by the gateway for protocol conversion and other processing to ensure that the data format meets the in-vehicle network communication standard, and then transmitted to the Electronic Control Unit (ECU). The ECU can judge whether the driver's vehicle steering wheel operation is standardized based on the acquired real-time collected data. The steering wheel hand grip state can be judged based on the real-time collected data of the optional pressure sensor, and the steering operation can be judged whether it is reasonable in combination with the real-time collected data of the vehicle angle sensor. If the vehicle steering wheel operation is judged to be an irregular operation, the ECU control unit will trigger the reporting data to TBOX (Telematic BOX) through the gateway (GW), and TBOX will send instructions to IVI (In-Vehicle Infotainment) to realize voice reminders. After receiving the instructions, IVI can play the pre-recorded in-vehicle voice reminder information.

[0077] S330: When irregular steering wheel operation is detected, an external vehicle communication method is used to provide external voice reminder information to the driver from the external vehicle monitoring direction.

[0078] Specifically, in addition to judging irregular operations by in-vehicle communication, the irregular operation type and the corresponding operation timestamp will be transmitted to TBOX. TBOX transmits the data (including irregular operation type and corresponding operation timestamp and other information) after the gateway performs protocol conversion and other processing to TSP (Telematics Service Provider, automotive remote service provider). After receiving the data, TSP stores it in the database and analyzes and processes the data, such as counting the frequency of irregular operations of the driver within a period of time. TSP can also generate corresponding reports based on the data, such as daily, weekly, monthly and annual reports. The analysis results can be transmitted to the driver through APP (Application, mobile application), and the driver can view his driving habit data and understand what aspects he needs to improve. In addition, in the management scenario of the off-vehicle monitoring party, such as the management scenario of the traffic supervision department or the fleet management scenario, TSP synchronizes the data (including irregular operation type and corresponding operation timestamp and other information) to the off-vehicle monitoring party (such as the APP or web platform of the traffic supervision department or fleet management), and the off-vehicle monitoring party can view the steering wheel operation of the driver. If it is found that the driver has been operating irregularly for a long time and has not corrected himself, a voice call command can be initiated through a mobile phone APP or a web page platform. Specifically, the voice call command is first sent to TSP, and then forwarded to TBOX by TSP. After receiving the voice call command, TBOX sends it to IVI, and IVI sends an outside voice reminder message to realize a remote voice call to the driver, reminding the driver to correct the irregular operation behavior in time. At the same time, TSP can also send daily, weekly, monthly and annual reports to the outside monitoring party through mobile phone APP and web pages, so that the outside monitoring party can evaluate the driver's driving habits and conduct further training.

[0079] This solution pre-installs an optional pressure sensor on the vehicle steering wheel, and then divides the information transmission into two parts: in-vehicle communication and out-vehicle communication. The in-vehicle communication is used to remind the driver to hold the steering wheel in a standardized posture, while the out-vehicle communication records the time period and behavior of the driver holding the steering wheel improperly in a mobile phone application or web page through the smart vehicle terminal and the automotive remote service provider. If it is found that the driver has been operating improperly for a long time and has not corrected himself, a voice call command can be initiated through the application or web platform. This avoids the problem of lack of effective monitoring, reminders and information recording methods for the driver's improper steering wheel holding behavior in the traditional driving environment, resulting in the inability to correct unsafe driving behavior in a timely manner, which is not conducive to subsequent management and accident analysis. Communication can remind the driver in real time, so that he can quickly correct the improper steering wheel holding method, and ensure that the driver can effectively control the vehicle during driving, especially in complex road conditions or sudden emergencies, thereby improving driving safety and ensuring driving safety; through external vehicle communication, the relevant information of irregular behavior is recorded in the application. Whether it is fleet management for driver training and assessment, or for liability determination in the process of accident handling, detailed data basis is available, which is conducive to enhancing the effectiveness of management and the scientific nature of accident tracing, and facilitating management and tracing; efficient use of Internet of Vehicles related technologies can realize the efficient circulation and integration of information inside and outside the vehicle, without the need for large-scale and complex modifications to the vehicle, and efficient use of the advantages of the Internet of Vehicles to build a more complete driving safety guarantee system.

[0080] Embodiment 3

[0081] Figure 4 This is a schematic diagram of the structure of a vehicle steering wheel operation detection device provided in Embodiment 3 of the present invention. The embodiment of the present invention can be applied to the case where a pressure sensor is used to detect the vehicle steering wheel operation, the device can execute the vehicle steering wheel operation detection method, the device can be implemented in the form of hardware and / or software, and the device can be configured in an electronic device that carries the vehicle steering wheel operation detection function, such as a vehicle-mounted terminal.

[0082] See also Figure 4The vehicle steering wheel operation detection device shown includes: a detection pressure value acquisition module 410, a hand holding state detection module 420 and an operation normativeness detection module 430. Among them, the detection pressure value acquisition module 410 is used to obtain the vehicle driving state of the current vehicle and the detection pressure value detected by at least one alternative pressure sensor on the vehicle steering wheel; the hand holding state detection module 420 is used to determine the steering wheel hand holding state and steering wheel hand holding strength of the vehicle steering wheel according to the vehicle driving state of the current vehicle and the detection pressure values ​​of each of the alternative pressure sensors; the operation normativeness detection module 430 is used to perform normative detection on the vehicle steering wheel operation according to the steering wheel hand holding state and steering wheel hand holding strength of the vehicle steering wheel.

[0083] The technical solution of the embodiment of the present invention is to pre-set at least one alternative pressure sensor on the vehicle steering wheel, obtain the detection pressure value detected by at least one alternative pressure sensor on the vehicle steering wheel of the current vehicle, and determine the steering wheel grip state and steering wheel grip strength of the vehicle steering wheel based on the detection pressure values ​​of each alternative pressure sensor of the current vehicle, thereby realizing standardized detection of the vehicle steering wheel operation, reducing the detection cost of the vehicle steering wheel operation, and can quickly detect the vehicle steering wheel operation, thereby improving the vehicle driving safety.

[0084] In an optional embodiment of the present invention, the hand-gripping state detection module 420 includes: a vehicle driving state acquisition unit, used to acquire the vehicle driving state of the current vehicle, and select a target pressure sensor from each of the alternative pressure sensors according to the vehicle driving state of the current vehicle, and determine the steering wheel hand-gripping state of the vehicle steering wheel according to the detection pressure value of the target pressure sensor; wherein the steering wheel hand-gripping state includes holding the steering wheel with both hands, holding the steering wheel with one hand, and not holding the steering wheel with both hands; a steering wheel hand-gripping strength detection unit, used to determine the steering wheel hand-gripping strength of the vehicle steering wheel according to the detection pressure value of each of the alternative pressure sensors when the steering wheel hand-gripping state of the vehicle steering wheel is holding the steering wheel with both hands.

[0085] In an optional embodiment of the present invention, the vehicle driving state acquisition unit includes: a first target pressure sensor screening subunit, which is used to determine the 0° direction position pressure sensor and the 180° direction position pressure sensor as the target pressure sensor among the alternative pressure sensors when the current vehicle is in a straight state; a second target pressure sensor screening subunit, which is used to determine the 0° direction position pressure sensor, the 180° direction position pressure sensor and the 270° direction position pressure sensor as the target pressure sensor among the alternative pressure sensors when the current vehicle is in a turning state; and detect whether the detection pressure values ​​of the target pressure sensors are continuously lower than the preset state detection pressure values. a pressure measurement threshold; a first steering wheel hand-holding state detection subunit, for determining that the steering wheel hand-holding state of the vehicle steering wheel is two-handed steering wheel holding when it is detected that the detection pressure values ​​of the target pressure sensors are continuously greater than or equal to the preset state detection pressure threshold; a second steering wheel hand-holding state detection subunit, for determining that the steering wheel hand-holding state of the vehicle steering wheel is one-handed steering wheel holding when it is detected that there is a single non-zero pressure value to be detected in the target pressure sensor; a third steering wheel hand-holding state detection subunit, for determining that the steering wheel hand-holding state of the vehicle steering wheel is not holding the steering wheel with both hands when it is detected that the detection pressure values ​​of the target pressure sensors are continuously lower than the preset state detection pressure threshold.

[0086] In an optional embodiment of the present invention, the steering wheel grip force detection unit includes: a detection pressure total value determination subunit, used to determine the total detection pressure value of the vehicle steering wheel according to the detection pressure values ​​of each of the alternative pressure sensors; a detection pressure total value determination subunit, used to obtain a preset tightness pressure range, and compare the total detection pressure value of the vehicle steering wheel with the preset tightness pressure range; a first steering wheel grip force detection subunit, used to determine that the steering wheel grip force of the vehicle steering wheel is tight when the total detection pressure value of the vehicle steering wheel is greater than the upper limit value of the preset tightness pressure range; a second steering wheel grip force detection subunit, used to determine that the steering wheel grip force of the vehicle steering wheel is loose when the total detection pressure value of the vehicle steering wheel is less than the lower limit value of the preset tightness pressure range.

[0087] In an optional embodiment of the present invention, the steering wheel grip force detection unit further includes: an alternative pressure sensor area division subunit, which is used to divide the alternative pressure sensor into areas after determining the steering wheel grip state of the vehicle steering wheel according to the detection pressure value of the target pressure sensor, when the steering wheel grip state of the vehicle steering wheel is two-handed steering wheel grip, to obtain an upper semicircular area pressure sensor and a lower semicircular area pressure sensor; a lower semicircular area pressure total value determination subunit, which is used to sum the detection pressure values ​​of each of the upper semicircular area pressure sensors to obtain the upper semicircular area pressure total value. and summing up the detected pressure values ​​of each of the lower semicircular area pressure sensors to obtain a total pressure value of the lower semicircular area; a semicircular area pressure total value comparison subunit, used to compare the total pressure value of the upper semicircular area with the total pressure value of the lower semicircular area; a first steering wheel hand grip position detection subunit, used to determine that the steering wheel hand grip position of the vehicle steering wheel is higher when the total pressure value of the upper semicircular area is greater than the total pressure value of the lower semicircular area; a second steering wheel hand grip position detection subunit, used to determine that the steering wheel hand grip position of the vehicle steering wheel is lower when the total pressure value of the lower semicircular area is less than the total pressure value of the lower semicircular area.

[0088] In an optional embodiment of the present invention, the device also includes: an irregular operation type determination module, which is used to determine the irregular operation type when it is detected that the vehicle steering wheel operation is irregular after the vehicle steering wheel operation is standardized according to the steering wheel grip state and steering wheel grip strength of the vehicle steering wheel; an irregular operation type synchronization module, which is used to synchronize the irregular operation type and the corresponding operation timestamp to the outside-vehicle monitoring party; a steering wheel operation status statistics module, which is used to count the steering wheel operation status of the driver through the outside-vehicle monitoring party according to the irregular operation type and the corresponding operation timestamp; an outside-vehicle voice reminder information feedback module, which is used to feedback outside-vehicle voice reminder information to the driver through the outside-vehicle monitoring party when it is detected that there is an irregular operation in the steering wheel operation status of the driver that exceeds a preset irregular operation time, so that the driver can correct the irregular operation in time.

[0089] The vehicle steering wheel operation detection device provided in the embodiment of the present invention can execute the vehicle steering wheel operation detection method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0090] In the technical solution of the embodiment of the present invention, the acquisition, storage and application of the detection pressure value detected by at least one alternative pressure sensor on the steering wheel of the current vehicle, the vehicle driving status of the current vehicle and the preset tightness pressure range, etc., all comply with the provisions of relevant laws and regulations and do not violate public order and good morals.

[0091] Embodiment 4

[0092] Figure 5 A schematic diagram of the structure of an electronic device 500 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0093] like Figure 5 As shown, the electronic device 500 includes at least one processor 501, and a memory connected to the at least one processor 501 in communication, such as a read-only memory (ROM) 502, a random access memory (RAM) 503, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 501 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 502 or the computer program loaded from the storage unit 508 to the random access memory (RAM) 503. In the RAM 503, various programs and data required for the operation of the electronic device 500 can also be stored. The processor 501, the ROM 502, and the RAM 503 are connected to each other via a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0094] Multiple components in the electronic device 500 are connected to the I / O interface 505, including: an input unit 506, such as a keyboard, a mouse, etc.; an output unit 507, such as various types of displays, speakers, etc.; a storage unit 508, such as a disk, an optical disk, etc.; and a communication unit 509, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 509 allows the electronic device 500 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0095] The processor 501 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 501 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 501 performs the various methods and processes described above, such as a vehicle steering wheel operation detection method.

[0096] In some embodiments, the vehicle steering wheel operation detection method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 508. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 500 via the ROM 502 and / or the communication unit 509. When the computer program is loaded into the RAM 503 and executed by the processor 501, one or more steps of the vehicle steering wheel operation detection method described above may be performed. Alternatively, in other embodiments, the processor 501 may be configured to perform the vehicle steering wheel operation detection method in any other appropriate manner (e.g., by means of firmware).

[0097] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0098] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0099] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0100] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0101] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0102] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship between the client and the server is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS (Virtual Private Server) services.

[0103] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0104] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle steering wheel operation detection method, characterized in that: The method comprises: Obtaining a detection pressure value detected by at least one candidate pressure sensor on a vehicle steering wheel of the current vehicle; Determining a steering wheel grip state and a steering wheel grip strength of the vehicle steering wheel according to the detection pressure values ​​of each of the candidate pressure sensors of the current vehicle; The vehicle steering wheel operation is normatively checked according to the steering wheel grip state and steering wheel grip strength of the vehicle steering wheel.

2. The method according to claim 1, characterized in that The determining the steering wheel grip state and the steering wheel grip strength of the vehicle steering wheel according to the detection pressure values ​​of each of the candidate pressure sensors of the current vehicle comprises: Acquire the vehicle driving state of the current vehicle, and select a target pressure sensor from each of the candidate pressure sensors according to the vehicle driving state of the current vehicle, and determine the steering wheel grip state of the vehicle steering wheel according to the detection pressure value of the target pressure sensor; wherein the steering wheel grip state includes gripping the steering wheel with both hands, gripping the steering wheel with one hand, and gripping the steering wheel with neither hand; When the steering wheel gripping state of the vehicle steering wheel is that the steering wheel is gripped with both hands, the steering wheel gripping strength of the vehicle steering wheel is determined according to the detection pressure values ​​of each of the candidate pressure sensors.

3. The method according to claim 2, characterized in that The step of selecting a target pressure sensor from among the candidate pressure sensors according to the current vehicle driving state includes: When the current vehicle is in a straight-moving state, among the candidate pressure sensors, a 0° direction position pressure sensor and a 180° direction position pressure sensor are determined as target pressure sensors; When the current vehicle is in a turning state, among the candidate pressure sensors, a 0° direction position pressure sensor, a 180° direction position pressure sensor and a 270° direction position pressure sensor are determined as target pressure sensors; The step of determining the hand-gripping state of the vehicle steering wheel according to the detection pressure value of the target pressure sensor comprises: Detecting whether the detection pressure values ​​of the target pressure sensor are continuously lower than a preset state detection pressure threshold; When it is detected that the detection pressure values ​​of the target pressure sensor are continuously greater than or equal to the preset state detection pressure threshold, determining that the steering wheel grip state of the vehicle steering wheel is the two-handed steering wheel grip; When it is detected that there is a single non-zero pressure value to be detected in the target pressure sensor, determining that the steering wheel grip state of the vehicle steering wheel is a single-handed steering wheel grip; When it is detected that the detection pressure values ​​of the target pressure sensors are continuously lower than the preset state detection pressure threshold, it is determined that the steering wheel grip state of the vehicle steering wheel is that both hands are not gripping the steering wheel.

4. The method according to claim 2, characterized in that: The step of determining the hand grip strength of the vehicle steering wheel according to the detected pressure values ​​of each of the candidate pressure sensors comprises: Determining a total value of the detection pressure of the vehicle steering wheel according to the detection pressure values ​​of the candidate pressure sensors; Obtaining a preset tightness pressure range, and comparing the total pressure value detected by the vehicle steering wheel with the preset tightness pressure range; When the total detected pressure of the vehicle steering wheel is greater than the upper limit of the preset tightness pressure range, it is determined that the hand grip force of the vehicle steering wheel is tight; When the total value of the detected pressure of the vehicle steering wheel is less than the lower limit value of the preset tightness pressure range, it is determined that the steering wheel grip of the vehicle steering wheel is loose.

5. The method according to claim 4, characterized in that After determining the hand-gripping state of the vehicle steering wheel according to the detection pressure value of the target pressure sensor, the method further includes: When the steering wheel grip state of the vehicle steering wheel is two-handed grip, the candidate pressure sensors are divided into regions to obtain upper semicircular region pressure sensors and lower semicircular region pressure sensors; The pressure values ​​detected by the pressure sensors in the upper semicircular area are summed to obtain a total pressure value in the upper semicircular area, and the pressure values ​​detected by the pressure sensors in the lower semicircular area are summed to obtain a total pressure value in the lower semicircular area; Comparing the total pressure value of the upper semicircular area with the total pressure value of the lower semicircular area; When the total pressure value of the upper semicircular area is greater than the total pressure value of the lower semicircular area, it is determined that the steering wheel hand grip position of the vehicle steering wheel is higher; When the total pressure value of the lower semicircular area is less than the total pressure value of the upper semicircular area, it is determined that the steering wheel grip position of the vehicle steering wheel is low.

6. The method according to claim 1, characterized in that After the vehicle steering wheel operation is normatively detected according to the steering wheel grip state and the steering wheel grip strength of the vehicle steering wheel, the method further includes: When detecting that the vehicle steering wheel is operated irregularly, determining the type of irregular operation; Synchronize the irregular operation type and the corresponding operation timestamp to an off-vehicle monitoring party; By means of the off-vehicle monitoring party, statistics are collected on the steering wheel operation of the driver according to the irregular operation type and the corresponding operation timestamp; When the off-vehicle monitoring party detects that the driver's steering wheel operation contains irregular operations that exceed a preset irregular operation duration, off-vehicle voice reminder information is fed back to the driver so that the driver can correct the irregular operations in a timely manner.

7. A vehicle steering wheel operation detection device, characterized in that: The device comprises: A detection pressure value acquisition module, used to acquire the vehicle driving state of the current vehicle and the detection pressure value detected by at least one candidate pressure sensor on the vehicle steering wheel; A hand grip state detection module, used for determining a steering wheel hand grip state and a steering wheel hand grip strength of the vehicle steering wheel according to the vehicle driving state of the current vehicle and the detection pressure value of each of the candidate pressure sensors; The operation normativeness detection module is used to perform normativeness detection on the vehicle steering wheel operation according to the steering wheel grip state and steering wheel grip strength of the vehicle steering wheel.

8. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the vehicle steering wheel operation detection method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the vehicle steering wheel operation detection method according to any one of claims 1 to 6 when executed.

10. A computer program product, characterized in that The computer program product comprises a computer program, which, when executed by a processor, implements the vehicle steering wheel operation detection method according to any one of claims 1 to 6.

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