CN115489526A - Driving assistance method and system, and computer-readable storage medium - Google Patents
Driving assistance method and system, and computer-readable storage medium Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/14—Adaptive cruise control
- B60W30/16—Control of distance between vehicles, e.g. keeping a distance to preceding vehicle
- B60W30/162—Speed limiting therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W2050/143—Alarm means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2554/00—Input parameters relating to objects
- B60W2554/80—Spatial relation or speed relative to objects
- B60W2554/802—Longitudinal distance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2555/00—Input parameters relating to exterior conditions, not covered by groups B60W2552/00, B60W2554/00
- B60W2555/20—Ambient conditions, e.g. wind or rain
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Abstract
The invention provides an auxiliary driving method and system and a computer readable storage medium, wherein the auxiliary driving method comprises the steps of detecting environmental information, and acquiring visibility distance according to the environmental information; judging whether an auxiliary driving mode is started or not according to the visibility distance; and when the visibility distance is less than or equal to a preset distance, starting the auxiliary driving mode. According to the technical scheme, the external environment information of the vehicle is detected in real time, so that the visibility distance is analyzed according to the environment information, when the visibility distance is reduced, the auxiliary driving mode is automatically started, the driver is timely reminded or assisted to control the vehicle, the driving difficulty of the driver is reduced, and the fatigue feeling is reduced.
Description
Technical Field
The present invention relates to the field of vehicle systems, and in particular, to a driving assistance method, a driving assistance system, and a computer-readable storage medium.
Background
With the development and progress of economy and science, people are more and more common to use the vehicle. The driver still needs to reduce the speed by the own technology and experience and keep high special attention, long-time concentrated driving is easy to lead the driver to be tired or tired, traffic accidents are easy to happen, and therefore the safety of the lives and property of the driver is influenced.
Disclosure of Invention
The invention mainly aims to provide a driving assisting method and system and a computer readable storage medium, and aims to solve the technical problem that fatigue is easily caused by long-time high-concentration driving under the condition of low visibility in the prior art.
In order to achieve the above object, the present invention provides a driving assistance method including:
detecting environmental information, and acquiring visibility distance according to the environmental information;
judging whether an auxiliary driving mode is started or not according to the visibility distance;
and when the visibility distance is less than or equal to a preset distance, starting the auxiliary driving mode.
Optionally, the step of turning on the assisted driving mode comprises:
detecting a first vehicle distance from a front vehicle;
detecting a second vehicle distance from a rear vehicle;
and adjusting the running speed according to the first vehicle distance and the second vehicle distance.
Optionally, the step of adjusting the driving speed according to the first vehicle distance and the second vehicle distance comprises:
when the first vehicle distance and the second vehicle distance are both larger than a first preset vehicle distance, keeping the running speed at the original running speed;
and when the first vehicle distance and/or the second vehicle distance is smaller than or equal to the first preset vehicle distance, calculating a safe driving speed, and adjusting the driving speed to the safe driving speed.
Optionally, the step of calculating the safe driving speed comprises:
acquiring a first relative speed between the front vehicle and the front vehicle;
acquiring a second relative speed with the rear vehicle;
calculating the safe driving speed according to the first relative speed, the second relative speed, the first vehicle distance and the second vehicle distance.
Optionally, after the step of adjusting the driving speed according to the first vehicle distance and the second vehicle distance, the method further includes:
judging whether to whistle or not according to the first vehicle distance and the second vehicle distance;
when the first vehicle distance and the second vehicle distance are both larger than a second preset vehicle distance, no whistle is performed;
and when the first vehicle distance and/or the second vehicle distance are/is smaller than or equal to the second preset vehicle distance, whistling is carried out.
Optionally, after the step of starting the driving assistance mode, the method further includes:
detecting whether a fog light, a clearance light, a dipped headlight and an air conditioner are started or not;
when one or more of the fog lamp, the clearance lamp, the dipped headlight and the air conditioner are not turned on, the corresponding turned-on fog lamp, clearance lamp, dipped headlight or air conditioner is turned on.
Optionally, when the visibility distance is less than or equal to a preset distance, after the step of starting the auxiliary driving mode, the method further includes:
when the visibility distance is greater than the preset distance, generating prompt information to prompt a driver whether to close the auxiliary driving mode;
when a reply signal of the prompt message is received, the auxiliary driving mode is turned on or off according to the reply signal;
when the reply signal is not received, keeping the auxiliary driving mode open.
Optionally, when the reply signal is not received, the step of keeping the auxiliary driving mode on includes:
when the reply signal is received, waiting for a preset time length;
and when the reply signal is not received after the preset time period, keeping the auxiliary driving mode on.
In addition, in order to solve the above problem, the present invention further provides a driving assistance system, including: camera, radar, memory, processor and supplementary driving program stored on the memory and operable on the processor, wherein:
the camera and the radar are used for collecting environmental information;
the driving assistance program, when executed by the processor, implements the steps of the driving assistance method as described above.
In addition, in order to solve the above problem, the present invention also provides a computer readable storage medium, which stores therein a driving assistance program, which when executed by a processor, implements the steps of the driving assistance method as described above.
According to the technical scheme, the external environment information of the vehicle is detected in real time, so that the visibility distance is analyzed according to the environment information, when the visibility distance is reduced, the auxiliary driving mode is automatically started, the driver is timely reminded or assisted to control the vehicle, the driving difficulty of the driver is reduced, and the fatigue feeling is reduced.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a first embodiment of a driving assistance method according to the present invention;
FIG. 2 is a schematic flow chart of a driving assistance method according to a second embodiment of the present invention;
FIG. 3 is a flowchart illustrating a driving assistance method according to a third embodiment of the present invention;
fig. 4 is a schematic flow chart of a driving assistance method according to a fourth embodiment of the present invention.
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicators are changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be fixedly connected, may be detachably connected, or may be integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a driving assistance method, please refer to fig. 1, fig. 1 is a schematic flow chart of a first embodiment of the driving assistance method of the invention, and the driving assistance method includes the following steps:
step S10: detecting environmental information, and acquiring visibility distance according to the environmental information;
step S20: judging whether an auxiliary driving mode is started or not according to the visibility distance;
step S30: and when the visibility distance is less than or equal to a preset distance, starting the auxiliary driving mode.
In this embodiment, a visibility sensor (a capture instrument), a camera, a radar, and the like may be added to the vehicle to detect the external environment in real time and obtain the environmental information. Specifically, when a driver runs on a road with low visibility, an auxiliary driving system installed in a central control unit CAN be manually controlled to be started, a CAN line in the auxiliary driving system sends a pulse signal, and the pulse signal is transmitted to a visibility sensor through the CAN line, so that the visibility distance is acquired. In addition, the visibility sensor can also be set to be in a normally open state, so that the visibility distance can be detected in real time or at intervals, the operation of a driver is reduced on the premise of reducing energy consumption, and the automation degree is improved. The visibility sensor CAN be matched with a camera to capture image information in front of a vehicle, judge the visibility in front of the vehicle through an internal algorithm, and transmit the visibility distance to an auxiliary driving system or a central control station through a CAN (controller area network) line, so that the visibility distance is judged.
When visibility distance is less than or equal to preset distance, the size of preset distance can be adjusted according to driver's driving habit by oneself, in this embodiment preset distance sets up to 500 meters as an example, works as when visibility distance is less than 500 meters, the vehicle then opens the auxiliary driving mode automatically, supplementary driver guarantees safe driving.
Further, after step 30, the method further includes:
step S40: when the visibility distance is greater than the preset distance, generating prompt information to prompt a driver whether to close the auxiliary driving mode;
step S50: when a reply signal of the prompt message is received, the auxiliary driving mode is started or closed according to the reply signal;
step S60: when the reply signal is not received, keeping the auxiliary driving mode on.
When the auxiliary driving mode is started, the visibility sensor continues to detect the visibility distance in real time, and when a driver leaves an area with low visibility distance and is detected by the visibility sensor, the auxiliary driving system prompts the driver to turn off the auxiliary driving system in a mode of generating prompt information. The prompt information may be displayed on a display screen or in a voice power amplification mode, and in this embodiment, the prompt information asks the driver whether to turn off the assistant driving system in a voice inquiry mode of a voice module. Meanwhile, a voice module collects the voice of the driver so as to collect the reply signal of the driver, wherein the reply signal comprises a response closing service and a response non-closing service; if the driver answers to close the service, namely when the voice module receives the reply signal of the prompt message, the auxiliary driving system sends a closing signal to the visibility sensor, and meanwhile, the auxiliary driving system enters a self-closing state. If the driver does not answer or does not close the service in response, namely the voice module does not receive the reply signal of the prompt message, the assistant driving system can broadcast the voice to keep the state of opening the assistant driving system.
Specifically, step S60 includes:
step S61: when the reply signal is not received, waiting for a preset time length;
step S62: and when the reply signal is not received after the preset time period, keeping the auxiliary driving mode on.
In order to avoid misoperation, when the driver does not respond, a preset time length can be set, and when the voice module does not receive the reply signal within the preset time length, the driver is judged not to need to close the auxiliary driving mode, so that the auxiliary driving mode is kept open.
According to the technical scheme, the external environment information of the vehicle is detected in real time, so that the visibility distance is analyzed according to the environment information, when the visibility distance is reduced, the auxiliary driving mode is automatically started, the driver is timely reminded or assisted to control the vehicle, the driving difficulty of the driver is reduced, and the fatigue feeling is reduced.
Further, referring to fig. 2, fig. 2 is a flowchart illustrating a driving assistance method according to a second embodiment of the present invention, and step S30 specifically includes:
step S31: detecting a first vehicle distance from a front vehicle;
step S32: detecting a second vehicle distance from a rear vehicle;
step S33: and adjusting the running speed according to the first vehicle distance and the second vehicle distance.
After the auxiliary driving mode is started, the auxiliary driving system controls the opening degree of an accelerator pedal and a brake pedal of the vehicle through the CAN line, so that the driving speed of the vehicle is kept at the original speed for driving. While the radars, e.g. lidar etc., in front of and behind the vehicle are switched on. And detecting the distance between the vehicle and the front vehicle or the rear vehicle through the radar. The distance from the front vehicle is defined as the first vehicle distance, and the distance from the rear vehicle is defined as the second vehicle distance.
In the present embodiment, when the first vehicle distance or the second vehicle distance is close, the first vehicle distance and the second vehicle distance are both 500 meters as an example. When the radar detects that other vehicles enter the first vehicle distance range or the second vehicle distance range in front of and behind the vehicle, the radar sends position information of the other vehicles to the assistant driving system, and then the assistant driving system broadcasts the first vehicle distance or the second vehicle distance through a power amplification module. Meanwhile, the position of the vehicle is judged and processed by an internal data processing module, the safe running speed is calculated, and the opening and closing degree of an accelerator pedal and a brake pedal is adjusted through a CAN line, so that the running speed of the vehicle is adjusted to the safe running speed.
Specifically, step S33 includes:
step S331: acquiring a first relative speed with a front vehicle;
step S332: acquiring a second relative speed with the rear vehicle;
step S333: calculating the safe driving speed according to the first relative speed, the second relative speed, the first vehicle distance and the second vehicle distance.
And when the first vehicle distance and the second vehicle distance are both larger than the first preset vehicle distance, indicating that a safe distance is kept between the vehicle and the front vehicle as well as between the vehicle and the rear vehicle. Optionally, the size of the first preset inter-vehicle distance may be adjusted according to driving habits of a driver. When the vehicle keeps a safe distance with the front vehicle and the rear vehicle, the vehicle is controlled to run at the original running speed.
When the first vehicle distance and/or the second vehicle distance is smaller than or equal to the first preset vehicle distance, namely the vehicle distance between the vehicle and either one of the front vehicle and the rear vehicle or the vehicle distance between the vehicle and the front vehicle or between the vehicle and the rear vehicle is too short, the auxiliary driving system judges and processes the position of the vehicle by using an internal data processing module and calculates the safe driving speed. For example, when the distance to the front vehicle is too short, the safe driving speed is adjusted according to the first relative speed, for example, the first relative speed is increased by reducing the safe driving speed, so that the distance to the front vehicle is pulled, and the safe driving is ensured. And when the distance between the vehicle and the rear vehicle is too short, adjusting the safe driving speed according to the second relative speed, for example, increasing the safe driving speed to increase the second relative speed, so that the distance between the vehicle and the rear vehicle is pulled away to ensure safe driving. When the first vehicle distance and the second vehicle distance are larger than the first preset vehicle distance, the first relative speed and the second relative speed can be kept relatively still. And finally, the driving assisting system adjusts the opening and closing degree of an accelerator pedal and a brake pedal through a CAN line so as to adjust the running speed of the vehicle to the safe running speed.
Further, referring to fig. 3, fig. 3 is a flowchart illustrating a driving assistance method according to a third embodiment of the present invention, and after step S33, the method further includes:
step S34: judging whether to whistle or not according to the first vehicle distance and the second vehicle distance;
step S35: when the first vehicle distance and the second vehicle distance are both larger than a second preset vehicle distance, no whistle is performed;
step S36: and when the first vehicle distance and/or the second vehicle distance are/is smaller than or equal to the second preset vehicle distance, whistling is carried out.
In this embodiment, in order to further improve the safety of the driving assistance mode, the distance between the front and rear vehicles is continuously detected by the radar. When the first vehicle distance and the second vehicle distance are smaller than the second preset vehicle distance, the auxiliary driving system CAN turn on the horn through the CAN line, and the horn signals that the drivers and other vehicle drivers have vehicles nearby, so that the drivers need to be careful in driving, and accidents are reduced. The second preset inter-vehicle distance may be adjusted according to driving habits of a driver, and it should be noted that, in order to ensure reasonability of setting, the first preset inter-vehicle distance should be greater than the second preset inter-vehicle distance, which is set to 200 meters in this embodiment as an example.
Further, referring to fig. 4, fig. 4 is a flowchart illustrating a driving assistance method according to a fourth embodiment of the present invention, and after step S30, the method further includes:
step S70: detecting whether a fog light, a clearance light, a dipped headlight and an air conditioner are started or not;
step S80: when one or more of the fog light, the profile light, the dipped headlight and the air conditioner are not turned on, the corresponding turned-on fog light, profile light, dipped headlight or air conditioner is turned on.
When the auxiliary driving mode is started, the auxiliary driving system acquires signals of a fog light, an outline marker light, a dipped headlight and an air conditioner of the vehicle through the CAN line, judges whether related components are started or not, and sends related starting signal instructions to the related components through the CAN line if the related components are not started, so that the vehicle light, the windscreen wiper and the air conditioner are started. Therefore, other vehicles can observe the vehicle in time, and a driver can be ensured to have a good view. In addition, the driving assisting system can also judge whether the windscreen wiper of the vehicle is opened or not, so that the windscreen wiper is automatically opened to prevent the vision of a driver from being blocked.
It should be noted that, when a driver issues a service instruction for turning off the auxiliary driving mode through a display screen, a button or voice, the auxiliary driving system issues an instruction for turning off the visibility capture instrument, the laser radar, the vehicle lamp, the wiper and the air conditioner through the CAN line, and simultaneously obtains the states of the parts, and when the states of the parts are turned off, the voice broadcast turns off the driving auxiliary service successfully, and then the parts are turned off by themselves, thereby ending the service. Therefore, the overall energy consumption of the vehicle is reduced, and the use experience is improved.
In addition, in order to solve the above problem, the present invention further provides a driving assistance system, including: the system comprises a camera, a radar, a memory, a processor and an auxiliary driving program which is stored on the memory and can run on the processor, wherein the camera and the radar are used for collecting environmental information; the driving assistance program, when executed by the processor, implements the steps of the driving assistance method as described above.
In this embodiment, a visibility sensor (a capture instrument), a camera, a radar, and the like may be added to the vehicle to detect an external environment in real time and obtain the environmental information. Specifically, when a driver runs on a road with low visibility, an auxiliary driving system installed in a central control unit CAN be manually controlled to be started, a CAN line in the auxiliary driving system sends a pulse signal, and the pulse signal is transmitted to a visibility sensor through the CAN line, so that the visibility distance is acquired. In addition, the visibility sensor can also be set to be in a normally open state, so that the visibility distance can be detected in real time or at intervals, the operation of a driver is reduced on the premise of reducing energy consumption, and the automation degree is improved. The visibility sensor CAN be matched with a camera to capture image information in front of a vehicle, judge the visibility in front of the vehicle through an internal algorithm, and transmit the visibility distance to an auxiliary driving system or a center console through a CAN (controller area network) line, so that the visibility distance is judged.
When the visibility distance is smaller than or equal to the preset distance, the size of the preset distance can be automatically adjusted according to the driving habits of a driver, the preset distance is set to be 500 meters for example in the embodiment, when the visibility distance is lower than 500 meters, the vehicle automatically starts an auxiliary driving mode, and the auxiliary driver is assisted to ensure safe driving.
When the auxiliary driving mode is started, the visibility sensor continues to detect the visibility distance in real time, and when a driver leaves an area with low visibility distance and is detected by the visibility sensor, the auxiliary driving system prompts the driver to turn off the auxiliary driving system in a mode of generating prompt information. The prompt information may be in a voice power amplifier mode or a display screen display mode, and in this embodiment, the prompt information asks the driver whether the driver needs to turn off the assistant driving system in a voice inquiry mode of a voice module. Meanwhile, a voice module collects the voice of the driver so as to collect the reply signal of the driver, wherein the reply signal comprises a response closing service and a response non-closing service; if the driver responds to the service closing, namely the voice module receives the reply signal of the prompt message, the auxiliary driving system sends a closing signal to the visibility sensor, and meanwhile, the auxiliary driving system enters a self-closing state. If the driver does not answer or does not close the service in response, namely the voice module does not receive the reply signal of the prompt message, the assistant driving system can broadcast the voice to keep the state of opening the assistant driving system.
In order to avoid misoperation, when the driver does not respond, a preset time length can be set, and when the voice module does not receive the reply signal within the preset time length, the driver is judged not to need to close the auxiliary driving mode, so that the auxiliary driving mode is kept open.
According to the technical scheme, the external environment information of the vehicle is detected in real time, so that the visibility distance is analyzed according to the environment information, when the visibility distance is reduced, the auxiliary driving mode is automatically started, the driver is timely reminded or assisted to control the vehicle, the driving difficulty of the driver is reduced, and the fatigue feeling is reduced.
In addition, in order to solve the above problem, the present invention further provides a computer readable storage medium, on which a driving assistance program is stored, and the driving assistance program realizes the steps of the driving assistance method as described above when executed by a processor.
In this embodiment, a visibility sensor (a capture instrument), a camera, a radar, and the like may be added to the vehicle to detect the external environment in real time and obtain the environmental information. Specifically, when a driver runs on a road with low visibility, an auxiliary driving system installed in the central control unit CAN be manually controlled to be started, a CAN line in the auxiliary driving system sends a pulse signal, and the pulse signal is transmitted to a visibility sensor through the CAN line, so that the visibility distance is obtained. In addition, the visibility sensor can also be set to be in a normally open state, so that the visibility distance can be detected in real time or at intervals, the operation of a driver is reduced on the premise of reducing energy consumption, and the automation degree is improved. The visibility sensor CAN be matched with a camera to capture image information in front of a vehicle, judge the visibility in front of the vehicle through an internal algorithm, and transmit the visibility distance to an auxiliary driving system or a central control station through a CAN (controller area network) line, so that the visibility distance is judged.
When visibility distance is less than or equal to preset distance, the size of preset distance can be adjusted according to driver's driving habit by oneself, in this embodiment preset distance sets up to 500 meters as an example, works as when visibility distance is less than 500 meters, the vehicle then opens the auxiliary driving mode automatically, supplementary driver guarantees safe driving.
When the auxiliary driving mode is started, the visibility sensor continues to detect the visibility distance in real time, and when a driver leaves an area with low visibility distance and is detected by the visibility sensor, the auxiliary driving system prompts the driver to turn off the auxiliary driving system in a mode of generating prompt information. The prompt information may be in a voice power amplifier mode or a display screen display mode, and in this embodiment, the prompt information asks the driver whether the driver needs to turn off the assistant driving system in a voice inquiry mode of a voice module. Meanwhile, the voice module collects the voice of the driver so as to collect the reply signal of the driver, wherein the reply signal comprises a response closing service and a response non-closing service; if the driver responds to the service closing, namely the voice module receives the reply signal of the prompt message, the auxiliary driving system sends a closing signal to the visibility sensor, and meanwhile, the auxiliary driving system enters a self-closing state. If the driver does not answer or does not close the service in response, namely the voice module does not receive the reply signal of the prompt message, the assistant driving system can broadcast the voice to keep the state of opening the assistant driving system.
In order to avoid misoperation, when the driver does not respond, a preset time length can be set, and when the voice module does not receive the reply signal within the preset time length, the driver is judged not to need to close the auxiliary driving mode, so that the auxiliary driving mode is kept open.
According to the technical scheme, the external environment information of the vehicle is detected in real time, so that the visibility distance is analyzed according to the environment information, when the visibility distance is reduced, the auxiliary driving mode is automatically started, the driver is timely reminded or assisted to control the vehicle, the driving difficulty of the driver is reduced, and the fatigue feeling is reduced.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A driving assist method, characterized by comprising:
detecting environmental information, and acquiring visibility distance according to the environmental information;
judging whether an auxiliary driving mode is started or not according to the visibility distance;
and when the visibility distance is less than or equal to a preset distance, starting the auxiliary driving mode.
2. The driving assist method according to claim 1, characterized in that the step of turning on the driving assist mode includes:
detecting a first vehicle distance from a front vehicle;
detecting a second vehicle distance from a rear vehicle;
and adjusting the running speed according to the first vehicle distance and the second vehicle distance.
3. The driving assist method according to claim 2, wherein the step of adjusting the travel speed in accordance with the first vehicle distance and the second vehicle distance includes:
when the first vehicle distance and the second vehicle distance are both larger than a first preset vehicle distance, keeping the running speed at the original running speed;
and when the first vehicle distance and/or the second vehicle distance is smaller than or equal to the first preset vehicle distance, calculating a safe driving speed, and adjusting the driving speed to the safe driving speed.
4. The driving assist method according to claim 3, wherein the step of calculating the safe travel speed includes:
acquiring a first relative speed with a front vehicle;
acquiring a second relative speed between the rear vehicle and the rear vehicle;
calculating the safe driving speed according to the first relative speed, the second relative speed, the first vehicle distance and the second vehicle distance.
5. The driving assist method according to claim 2, further comprising, after the step of adjusting the travel speed in accordance with the first vehicle distance and the second vehicle distance:
judging whether to whistle or not according to the first vehicle distance and the second vehicle distance;
when the first vehicle distance and the second vehicle distance are both larger than a second preset vehicle distance, no whistle is carried out;
and when the first vehicle distance and/or the second vehicle distance are/is smaller than or equal to the second preset vehicle distance, whistling is carried out.
6. The driving assist method according to claim 1, further comprising, after the step of turning on the driving assist mode:
detecting whether a fog light, a clearance light, a dipped headlight and an air conditioner are started or not;
when one or more of the fog lamp, the clearance lamp, the dipped headlight and the air conditioner are not turned on, the corresponding turned-on fog lamp, clearance lamp, dipped headlight or air conditioner is turned on.
7. The driving assist method according to claim 1, wherein, when the visibility distance is less than or equal to a preset distance, after the step of turning on the driving assist mode, further comprising:
when the visibility distance is greater than the preset distance, generating prompt information to prompt a driver whether to close the auxiliary driving mode;
when a reply signal of the prompt message is received, the auxiliary driving mode is turned on or off according to the reply signal;
when the reply signal is not received, keeping the auxiliary driving mode open.
8. The driving assist method according to claim 7, wherein the step of keeping the driving assist mode on when the reply signal is not received includes:
when the reply signal is not received, waiting for a preset time length;
and when the reply signal is not received after the preset time period, keeping the auxiliary driving mode on.
9. A driving assist system, characterized by comprising: camera, radar, memory, processor and supplementary driving program stored on the memory and can be operated on the processor, wherein:
the camera and the radar are used for collecting environmental information;
the driving assistance program when executed by the processor implements the steps of the driving assistance method according to any one of claims 1 to 8.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a driving assistance program which, when executed by a processor, implements the steps of the driving assistance method according to any one of claims 1 to 8.
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| DE4437678A1 (en) * | 1994-10-21 | 1996-05-02 | Telefunken Microelectron | Method fo regulating distance between motor vehicles |
| JP3077938B1 (en) * | 1999-02-16 | 2000-08-21 | 株式会社ホンダアクセス | Inter-vehicle distance control device |
| CN113401054A (en) * | 2021-07-22 | 2021-09-17 | 上汽通用五菱汽车股份有限公司 | Anti-collision method for vehicle, vehicle and readable storage medium |
| WO2021229458A1 (en) * | 2020-05-12 | 2021-11-18 | C.R.F. Societa' Consortile Per Azioni | Motor-vehicle driving assistance in low meteorological visibility conditions, in particular with fog |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE4437678A1 (en) * | 1994-10-21 | 1996-05-02 | Telefunken Microelectron | Method fo regulating distance between motor vehicles |
| JP3077938B1 (en) * | 1999-02-16 | 2000-08-21 | 株式会社ホンダアクセス | Inter-vehicle distance control device |
| WO2021229458A1 (en) * | 2020-05-12 | 2021-11-18 | C.R.F. Societa' Consortile Per Azioni | Motor-vehicle driving assistance in low meteorological visibility conditions, in particular with fog |
| CN113401054A (en) * | 2021-07-22 | 2021-09-17 | 上汽通用五菱汽车股份有限公司 | Anti-collision method for vehicle, vehicle and readable storage medium |
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