CN106297407A - Driving safety prompt method and device based on intelligent terminal - Google Patents
Driving safety prompt method and device based on intelligent terminal Download PDFInfo
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Abstract
Disclosure embodiment discloses a kind of driving safety prompt method and device based on intelligent terminal, and intelligent terminal utilizes the camera head of self to obtain the Herba Plantaginis field-of-view image of current driving vehicle.Then, utilize video ranging technology, obtain the distance between the barrier in described Herba Plantaginis field-of-view image and current driving vehicle；If the distance between described barrier and current driving vehicle is less than or equal to current safety distance, then show information to user.Thus the intelligent terminal real-time reminding user utilizing user to commonly use maintains a certain distance with preceding object thing (front vehicles), in such manner, it is possible to effectively reduce traffic safety hidden danger, reduce driving risk.
Description
Technical Field
The present disclosure relates to the field of computer technologies, and in particular, to a driving safety prompting method and device based on an intelligent terminal.
Background
With the development of science and technology, private cars become important transportation tools for people to go out. Driving safety is also a concern of people.
For a running car, the distance to the front car or a front obstacle is an important safety factor for the driver. Usually, a driver judges the distance between the front vehicle and the front obstacle through naked eyes, and then controls the vehicle to keep a safe distance with the front vehicle and the front obstacle, and the accuracy of the judgment mode is not high. In addition, in the mode of judging the distance of the front object by the naked eyes of the driver, if the driver does not notice that the front obstacle exists in some cases, certain potential safety hazard exists.
Disclosure of Invention
In order to solve the problems in the related art, the invention provides a driving safety prompting method and device based on an intelligent terminal.
In order to solve the technical problem, the embodiment of the present disclosure discloses the following technical solutions:
according to a first aspect of the embodiments of the present disclosure, a driving safety prompting method based on an intelligent terminal is provided, where the method includes:
acquiring a front view image of a currently running vehicle through a camera device of the intelligent terminal;
acquiring the distance between an obstacle in the front view image and the current running vehicle by using a video ranging technology;
and when the distance between the obstacle and the current running vehicle is detected to be smaller than or equal to the current safe distance, displaying prompt information to a user.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the acquiring, by using a video ranging technology, a distance between an obstacle in the front view image and a currently-traveling vehicle includes:
acquiring the distance between the barrier and the intelligent terminal by using a video ranging technology; subtracting the length of the head of the current running vehicle from the distance between the obstacle and the intelligent terminal to obtain the distance between the obstacle and the current running vehicle;
or,
and obtaining the linear distance between the obstacle and the intelligent terminal by utilizing a video ranging technology, and determining the linear distance as the distance between the obstacle and the current running vehicle.
With reference to the first aspect, in a second possible implementation manner of the first aspect, when it is detected that the distance between the obstacle and the currently-traveling vehicle is less than or equal to the current safe distance, presenting a prompt message to a user includes:
acquiring the current running speed of the current running vehicle;
inquiring the corresponding relation between the speed and the driving safety distance to obtain the driving safety distance corresponding to the current driving speed;
and when the fact that the distance between the obstacle and the current running vehicle is smaller than or equal to the current running safety distance corresponding to the current running speed is detected, displaying first prompt information prompting that the obstacle exists in front of the user to the user.
With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, when it is detected that the distance between the obstacle and the currently-traveling vehicle is less than or equal to the current safe distance, the presenting a prompt message to the user further includes:
inquiring the corresponding relation between the speed and the braking distance to obtain the braking distance corresponding to the current running speed;
when the distance between the obstacle and the current running vehicle is detected to be smaller than or equal to the brake distance corresponding to the current running speed, displaying second prompt information for prompting the user to brake or change the running direction to the user;
when the fact that the distance between the obstacle and the current running vehicle is smaller than or equal to the current running safety distance corresponding to the current running speed is detected, first prompt information prompting that the obstacle exists in front of the user is displayed to the user, and the method comprises the following steps:
and when detecting that the distance between the barrier and the current running vehicle is smaller than or equal to the current running safety distance corresponding to the current running speed and larger than the brake distance corresponding to the current running speed, displaying the first prompt information to a user.
With reference to the first aspect, in a fourth possible implementation manner of the first aspect, the method further includes:
and when the deceleration of the current running vehicle is detected, or the distance between the obstacle and the current running vehicle is greater than the current safe distance, eliminating the prompt message.
According to a second aspect of the embodiments of the present disclosure, a driving safety prompting device based on an intelligent terminal is provided, which includes:
the image acquisition module is used for acquiring the front view image of the current running vehicle through the camera device of the intelligent terminal;
the distance measurement module is used for acquiring the distance between the obstacle in the front view image and the current running vehicle by utilizing a video distance measurement technology;
and the prompt module is used for displaying prompt information to a user when the fact that the distance between the obstacle and the current running vehicle is smaller than or equal to the current safe distance is detected.
With reference to the second aspect, in a first possible implementation manner of the second aspect, the ranging module includes:
the first distance measurement submodule is used for acquiring the distance between the barrier and the intelligent terminal by utilizing a video distance measurement technology; the calculation submodule is used for subtracting the length of the head of the current running vehicle from the distance between the obstacle and the intelligent terminal to obtain the distance between the obstacle and the current running vehicle;
or,
and the second distance measuring submodule is used for obtaining the linear distance between the obstacle and the intelligent terminal by utilizing a video distance measuring technology and determining the linear distance as the distance between the obstacle and the current running vehicle.
With reference to the second aspect, in a second possible implementation manner of the second aspect, the prompting module includes:
the vehicle speed obtaining submodule is used for obtaining the current running speed of the current running vehicle;
the safe distance acquisition submodule is used for inquiring the corresponding relation between the speed and the driving safe distance and acquiring the driving safe distance corresponding to the current driving speed;
and the first prompting submodule is used for displaying first prompting information for prompting that the obstacle exists in front of the user when the fact that the distance between the obstacle and the current running vehicle is smaller than or equal to the current running safety distance corresponding to the current running speed is detected.
With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the prompting module further includes:
the braking distance obtaining sub-module is used for inquiring the corresponding relation between the speed and the braking distance and obtaining the braking distance corresponding to the current running speed;
the second prompting submodule is used for displaying second prompting information for prompting the user to brake or change the driving direction to the user when the fact that the distance between the obstacle and the current driving vehicle is smaller than or equal to the brake distance corresponding to the current driving speed is detected;
and the first prompting submodule is used for displaying the first prompting information to a user when detecting that the distance between the barrier and the current running vehicle is smaller than or equal to the current running safety distance corresponding to the current running speed and is larger than the brake braking distance corresponding to the current running speed.
With reference to the second aspect, in a fourth possible implementation manner of the second aspect, the apparatus further includes:
and the prompt information elimination module is used for eliminating the prompt information when the deceleration of the current running vehicle is detected, or the distance between the obstacle and the current running vehicle is greater than the current safe distance.
According to a third aspect of the embodiments of the present disclosure, there is provided an intelligent terminal, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring a front view image of a currently running vehicle through a camera device of the intelligent terminal;
acquiring the distance between an obstacle in the front view image and the current running vehicle by using a video ranging technology;
and when the distance between the obstacle and the current running vehicle is detected to be smaller than or equal to the current safe distance, displaying prompt information to a user.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the intelligent terminal acquires the front view image of the current running vehicle by using the camera device of the intelligent terminal. Then, acquiring the distance between an obstacle in the front view image and the current running vehicle by using a video ranging technology; and if the distance between the obstacle and the current running vehicle is less than or equal to the current safe distance, displaying prompt information to a user. Therefore, the intelligent terminal commonly used by the user is used for reminding the user to keep a certain distance from a front obstacle (a front vehicle) in real time, so that the driving potential safety hazard can be effectively reduced, and the driving risk is reduced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a flowchart illustrating a driving safety prompting method based on an intelligent terminal according to an exemplary embodiment;
fig. 2 is a flowchart illustrating another driving safety prompting method based on an intelligent terminal according to an exemplary embodiment;
FIG. 3 is a flow diagram illustrating another intelligent terminal based driving safety prompting method according to an example embodiment;
fig. 4 is a block diagram illustrating a driving safety prompting device based on an intelligent terminal according to an exemplary embodiment;
FIG. 5 is a block diagram illustrating a ranging module in accordance with an exemplary embodiment;
fig. 6 is a block diagram illustrating another driving safety prompting device based on an intelligent terminal according to an exemplary embodiment;
fig. 7 is a block diagram illustrating another driving safety prompting device based on an intelligent terminal according to an exemplary embodiment;
fig. 8 is a block diagram illustrating another driving safety prompting device based on an intelligent terminal according to an exemplary embodiment;
fig. 9 is a block diagram illustrating an apparatus 800 according to an example embodiment.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a flowchart illustrating a driving safety prompting method based on a smart terminal according to an exemplary embodiment, for example, the smart terminal may include a smart phone, a tablet computer, and the like, as shown in fig. 1, the method may include the following steps:
in step S110, a front view image of the currently traveling vehicle is acquired by the camera device of the smart terminal.
The intelligent terminal camera device (camera) is aligned to the front of the vehicle, so that the camera device has a good front view.
In step S120, a distance between an obstacle in the front view image and the currently traveling vehicle is acquired using a video ranging technique.
The distance between the obstacle (for example, a vehicle ahead) contained in the front view image and the currently running vehicle can be obtained by using corresponding photographing and ranging software, and the distance between the obstacle and the intelligent terminal is measured by the photographing and ranging software.
In an exemplary embodiment of the present disclosure, considering that the length of the head of a common car is about 1.2m, when an automobile runs normally, the corresponding safe distance is usually several tens of meters, so that the length of the head can be ignored, and the distance between an obstacle and an intelligent terminal is directly determined as the distance between the obstacle and the currently running vehicle.
In another exemplary embodiment of the present disclosure, since the length of the front of the general car is approximately 1.2m or so, the length of the front may be taken as a constant value, for example, 1 m. In this way, the distance d1 between the obstacle and the intelligent terminal measured by the photographing distance measurement software is subtracted by the vehicle head length d2, and finally the distance d between the actual obstacle and the current running vehicle is obtained, namely d is d1-d 2.
In step S130, when it is detected that the distance between the obstacle and the currently-traveling vehicle is less than or equal to the current safe distance, a prompt message is presented to the user.
In this embodiment, the current safe distance may be preset according to the regulations of the traffic law, for example, when the driving speed is 60km/h, the safe distance 60m regulated by the traffic law may be taken as the current safe distance. Of course, the corresponding safety distance may be determined according to the traveling speed for a certain period of time. The user can input the preset safe distance into the intelligent terminal in advance. Or the driving safety distance specified by the vehicle type traffic law of the vehicle is recorded into the intelligent terminal, so that the intelligent terminal can obtain the corresponding driving safety distance according to the current vehicle speed.
In other embodiments of the present disclosure, different safe distances may also be set according to corresponding scenes (e.g., high-speed driving, ordinary roads, etc.); for example, the driving speed of an automobile on a highway is usually high, and in such a scene, a large safety distance can be set; the automobile running speed on the common road is low, and a small safety distance can be set in the scene.
After the distance d between the barrier and the current running vehicle is obtained, the distance d and the current safe distance d are judgedanIf the distance d is less than or equal to danAnd sending prompt information to the user until the current running vehicle decelerates or the distance of the front obstacle is greater than the current safe distance, and canceling the prompt information. If the distance d is greater than danThen the current flow is ended.
The prompt message may be a voice message, such as a preset audio "notice an obstacle in front of the vehicle", or a preset alarm signal.
According to the driving safety prompting method based on the intelligent terminal, the intelligent terminal acquires the front view image of the current driving vehicle by using the camera device of the intelligent terminal. Then, acquiring the distance between an obstacle in the front view image and the current running vehicle by using a video ranging technology; and if the distance between the obstacle and the current running vehicle is less than or equal to the current safe distance, displaying prompt information to a user. Therefore, the intelligent terminal commonly used by the user is used for reminding the user to keep a certain distance from a front obstacle (a front vehicle) in real time, so that the driving potential safety hazard can be effectively reduced, and the driving risk is reduced.
Fig. 2 is a flowchart illustrating another driving safety prompting method based on an intelligent terminal according to an exemplary embodiment, in which a current safety distance is determined according to a current vehicle speed of a current driving vehicle, as shown in fig. 2, the method may include the following steps:
in step S210, a front view image of the currently traveling vehicle is acquired by the camera device of the smart terminal.
In step S220, a distance between an obstacle in the front view image and the currently traveling vehicle is acquired using a video ranging technique.
In step S230, the current running speed of the currently running vehicle is acquired.
The intelligent terminal can be provided with speed measuring software to measure the current running speed of the current running vehicle. The current travel speed of the vehicle may also be calculated based on data obtained by the GPS positioning function (e.g., based on a travel distance within a preset time period). The obtained speed displayed by the instrument panel of the automobile can be displayed on the intelligent terminal through other technologies.
In step S240, the corresponding relationship between the speed and the driving safety distance is queried to obtain the driving safety distance corresponding to the current driving speed.
The traffic law specifies driving safety distances corresponding to different driving speeds of a common car, and searches for a corresponding relationship between the driving speeds and the driving safety distances to obtain the driving safety distance corresponding to the current driving speed of the current driving vehicle, wherein the driving speed is 60km/h, and the corresponding driving safety distance is 60 m; the running speed is 80km/h, and the corresponding running safety distance is 80 m.
In step S250, when it is detected that the distance between the obstacle and the current driving vehicle is less than or equal to the current driving safety distance corresponding to the current driving speed, a first prompt message prompting that the obstacle exists in front of the user is presented to the user.
And judging the distance between the obtained obstacle and the current running vehicle and the driving safety distance corresponding to the current running speed, and if the distance between the obstacle and the current running vehicle is less than or equal to the driving safety distance, sending first prompt information to the user. And if the distance of the obstacle is greater than the driving safety distance, ending the current process.
According to the driving safety prompting method based on the intelligent terminal, the intelligent terminal obtains the distance between the current driving vehicle and the front obstacle by using a video ranging technology; and acquiring the current running speed of the vehicle, and searching the corresponding running safety distance according to the current running speed. If the distance of the front obstacle is smaller than or equal to the driving safety distance, first prompt information is sent to the user to prompt the user that the front obstacle exists, and the user notices the driving speed or avoids. The method determines the corresponding driving safety distance according to the real-time driving speed of the vehicle, so that the time for reminding the user is more accurate, and the accuracy of the prompt information is improved.
Fig. 3 is a flowchart illustrating another driving safety prompting method based on an intelligent terminal according to an exemplary embodiment, where a current safety distance in the method includes a driving safety distance and a braking distance, and the driving safety distance corresponding to the same driving speed is greater than the braking distance.
As shown in fig. 3, the method may include the steps of:
in step S310, a front view image of the currently traveling vehicle is acquired by the camera device of the smart terminal.
In step S320, a distance between an obstacle in the front view image and the currently traveling vehicle is acquired using a video ranging technique.
In step S330, the current running speed of the current running vehicle is acquired.
In step S340, a corresponding relationship between the speed and the driving safety distance is queried, and the driving safety distance corresponding to the current driving speed is obtained.
In step S350, a corresponding relationship between the speed and the braking distance is queried, and the braking distance corresponding to the current driving speed is obtained.
In step S360, determining a magnitude relationship between the distance of the obstacle and the driving safety distance and the braking distance corresponding to the current driving speed; if the distance of the obstacle is smaller than the driving safety distance and larger than the braking distance, executing a step S370; if the distance of the obstacle is less than or equal to the braking distance, executing the step S380; and if the distance of the obstacle is greater than the driving safety distance, ending the current process.
In step S370, first prompt information prompting that there is an obstacle in front of the user is presented to the user.
The first prompt message may be a voice message, such as a preset audio "notice an obstacle in front of the vehicle", or a preset alarm signal. And after the first prompt information is triggered when the corresponding trigger condition is met, the first prompt information is displayed to the user until the detected speed of the current running vehicle is reduced or the distance of the front obstacle is greater than the driving safety distance corresponding to the current running speed, and the first prompt information is eliminated.
In step S380, a second prompt message prompting the user to brake or change the driving direction is presented to the user.
The type of the second prompt message is the same as that of the first prompt message, the content of the second prompt message is different, and the second prompt message is used for prompting a user to brake or avoid a front obstacle. And when the current state of the vehicle meets the triggering condition of the second prompt message, displaying the second prompt message until the current state of the vehicle does not meet the triggering condition of the second body meeting message any more, and eliminating the second prompt message. That is, when it is detected that the currently running vehicle decelerates or the distance of the obstacle ahead is greater than the braking distance corresponding to the current running speed, the second prompt information is eliminated.
The driving safety prompting method based on the intelligent terminal provided by the embodiment is provided with two safety distances, namely a driving safety distance and a brake distance corresponding to the current driving speed, and when the distance of a current obstacle is smaller than the driving safety distance corresponding to the current driving speed and larger than the corresponding brake distance, first prompting information is sent to a user; then, according to the distance of the detected front obstacle, if the distance of the front obstacle is smaller than or equal to the brake distance corresponding to the current running speed, second prompt information for prompting the user to brake or avoid the front obstacle is sent to the user. The embodiment monitors in two stages, sends different prompt messages to the user in different stages, provides different prompt contents according to different conditions, and improves the intelligent degree. Moreover, the safety awareness of the user can be improved, and the driving risk is reduced.
Corresponding to the embodiment of the driving safety prompting method based on the intelligent terminal, the disclosure also provides an embodiment of a driving safety prompting device based on the intelligent terminal.
Fig. 4 is a block diagram illustrating a driving safety prompting device based on an intelligent terminal according to an exemplary embodiment. As shown in fig. 4, the apparatus includes an image acquisition module 110, a ranging module 120, and a prompt module 130.
The image acquisition module 110 is configured to acquire an image of a field of view in front of a vehicle currently traveling through a camera device of the smart terminal.
The ranging module 120 is configured to acquire a distance between an obstacle in the image of the field of view in front of the vehicle and the currently traveling vehicle using a video ranging technique.
In an exemplary embodiment of the present disclosure, as shown in fig. 5, the ranging module 120 includes a first ranging submodule 121 and a calculation submodule 122.
The first ranging submodule 121 is configured to acquire a distance between the obstacle and the smart terminal by using a video ranging technique.
The calculation submodule 122 is configured to subtract the head length of the currently running vehicle from the distance between the obstacle and the intelligent terminal to obtain the distance between the obstacle and the currently running vehicle.
In another exemplary embodiment of the present disclosure, the ranging module 120 includes a second ranging submodule; the second ranging submodule is configured to obtain a linear distance between the obstacle and the intelligent terminal by using a video ranging technology, and determine the linear distance as a distance between the obstacle and the current driving vehicle.
The prompt module 130 is configured to present a prompt to a user when it is detected that the distance between the obstacle and the currently-traveling vehicle is less than or equal to a current safe distance.
The driving safety prompting device based on the intelligent terminal provided by the embodiment utilizes the camera device of the intelligent terminal to acquire the front view image of the current driving vehicle. Then, acquiring the distance between an obstacle in the front view image and the current running vehicle by using a video ranging technology; and if the distance between the obstacle and the current running vehicle is less than or equal to the current safe distance, displaying prompt information to a user. Therefore, the intelligent terminal commonly used by the user is used for reminding the user to keep a certain distance from a front obstacle (a front vehicle) in real time, so that the driving potential safety hazard can be effectively reduced, and the driving risk is reduced.
Fig. 6 is a block diagram illustrating another driving safety prompting device based on an intelligent terminal according to an exemplary embodiment, and as shown in fig. 6, the device includes an image acquisition module 110, a distance measurement module 120, a vehicle speed acquisition submodule 131, a safe distance acquisition submodule 132, and a first prompting submodule 133.
The image acquisition module 110 is configured to acquire an image of a field of view in front of a vehicle currently traveling through a camera device of the smart terminal.
The ranging module 120 is configured to acquire a distance between an obstacle in the image of the field of view in front of the vehicle and the currently traveling vehicle using a video ranging technique.
The vehicle speed acquisition submodule 131 is configured to acquire a current running speed of the current running vehicle.
The safe distance obtaining sub-module 132 is configured to query a corresponding relationship between the speed and the driving safe distance, and obtain the driving safe distance corresponding to the current driving speed.
The first prompting sub-module 133 is configured to, when it is detected that the distance between the obstacle and the currently-traveling vehicle is less than or equal to the current-traveling safe distance corresponding to the current traveling speed, present a first prompting message to the user to prompt the user that there is an obstacle ahead.
The driving safety prompting device based on the intelligent terminal provided by the embodiment,
acquiring the distance between a current running vehicle and a front obstacle by using a video ranging technology of an intelligent terminal; and acquiring the current running speed of the vehicle, and searching the corresponding running safety distance according to the current running speed. If the distance of the front obstacle is smaller than or equal to the driving safety distance, first prompt information is sent to the user to prompt the user that the front obstacle exists, and the user notices the driving speed or avoids. The device determines the corresponding driving safety distance according to the real-time driving speed of the vehicle, so that the time for reminding the user is more accurate, and the accuracy of the prompt information is improved.
Fig. 7 is a block diagram illustrating another driving safety prompting device based on an intelligent terminal according to an exemplary embodiment, and as shown in fig. 7, the device includes an image obtaining module 110, a distance measuring module 120, a vehicle speed obtaining sub-module 131, a safe distance obtaining sub-module 132, a first prompting sub-module 133, a braking distance obtaining sub-module 134, and a second prompting sub-module 135.
The image acquisition module 110 is configured to acquire an image of a field of view in front of a vehicle currently traveling through a camera device of the smart terminal.
The ranging module 120 is configured to acquire a distance between an obstacle in the image of the field of view in front of the vehicle and the currently traveling vehicle using a video ranging technique.
The vehicle speed acquisition submodule 131 is configured to acquire a current running speed of the current running vehicle.
The safe distance obtaining sub-module 132 is configured to query a corresponding relationship between the speed and the driving safe distance, and obtain the driving safe distance corresponding to the current driving speed.
The braking distance obtaining sub-module 134 is configured to query a corresponding relationship between the speed and the braking distance, and obtain a braking distance corresponding to the current driving speed.
The first prompting sub-module 133 is configured to display the first prompting information to the user when detecting that the distance between the obstacle and the current driving vehicle is less than or equal to a current driving safety distance corresponding to a current driving speed and greater than a brake braking distance corresponding to the current driving speed.
The second prompting sub-module 135 is configured to, when it is detected that the distance between the obstacle and the currently driving vehicle is less than or equal to the braking distance corresponding to the current driving speed, display a second prompting message to the user to prompt the user to brake or change the driving direction.
The driving safety prompting device based on the intelligent terminal provided by the embodiment utilizes the camera device of the intelligent terminal to acquire the front view image of the current driving vehicle. Then, acquiring the distance between an obstacle in the front view image and the current running vehicle by using a video ranging technology; and if the distance between the obstacle and the current running vehicle is less than or equal to the current safe distance, displaying prompt information to a user. Therefore, the intelligent terminal commonly used by the user is used for reminding the user to keep a certain distance from a front obstacle (a front vehicle) in real time, so that the driving potential safety hazard can be effectively reduced, and the driving risk is reduced.
Fig. 8 is a block diagram illustrating another driving safety prompting device based on an intelligent terminal according to an exemplary embodiment, where the device further includes a prompting information eliminating module 210 based on the embodiment illustrated in fig. 4.
The prompt information elimination module 210 is configured to eliminate the prompt information when it is detected that the currently running vehicle decelerates or the distance between the obstacle and the currently running vehicle is greater than the current safe distance.
According to the driving safety prompting device based on the intelligent terminal, when the fact that the distance between the front obstacle and the current driving vehicle is smaller than or equal to the current safety distance is detected, prompting information is sent to a user, and the prompting information is eliminated until the current driving vehicle decelerates or the distance between the obstacle and the current driving vehicle is larger than the current safety distance. Therefore, the user can be effectively reminded of paying attention to the fact that the obstacle exists in front of the vehicle, and the vehicle can decelerate, brake or avoid the obstacle in time.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 9 is a block diagram illustrating an apparatus 800 for driving safety prompting according to an example embodiment. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
As shown in fig. 9, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.
The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
Power components 806 provide power to the various components of device 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 800.
The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed status of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in the temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
A non-transitory computer readable storage medium, instructions in which, when executed by a processor of a smart terminal, enable a terminal device to perform a method of:
acquiring a front view image of a currently running vehicle through a camera device of the intelligent terminal;
acquiring the distance between an obstacle in the front view image and the current running vehicle by using a video ranging technology;
and when the distance between the obstacle and the current running vehicle is detected to be smaller than or equal to the current safe distance, displaying prompt information to a user.
In an exemplary embodiment of the present disclosure, the acquiring a distance between an obstacle in the front view image and a currently traveling vehicle using a video ranging technique includes:
acquiring the distance between the barrier and the intelligent terminal by using a video ranging technology; subtracting the length of the head of the current running vehicle from the distance between the obstacle and the intelligent terminal to obtain the distance between the obstacle and the current running vehicle;
or,
and obtaining the linear distance between the obstacle and the intelligent terminal by utilizing a video ranging technology, and determining the linear distance as the distance between the obstacle and the current running vehicle.
In an exemplary embodiment of the present disclosure, when it is detected that the distance between the obstacle and the currently-traveling vehicle is less than or equal to the current safe distance, presenting a prompt message to a user, includes:
acquiring the current running speed of the current running vehicle;
inquiring the corresponding relation between the speed and the driving safety distance to obtain the driving safety distance corresponding to the current driving speed;
and when the fact that the distance between the obstacle and the current running vehicle is smaller than or equal to the current running safety distance corresponding to the current running speed is detected, displaying first prompt information prompting that the obstacle exists in front of the user to the user.
In an exemplary embodiment of the present disclosure, when it is detected that the distance between the obstacle and the currently-traveling vehicle is less than or equal to the current safe distance, presenting a prompt message to a user further includes:
inquiring the corresponding relation between the speed and the braking distance to obtain the braking distance corresponding to the current running speed;
when the distance between the obstacle and the current running vehicle is detected to be smaller than or equal to the brake distance corresponding to the current running speed, displaying second prompt information for prompting the user to brake or change the running direction to the user;
when the fact that the distance between the obstacle and the current running vehicle is smaller than or equal to the current running safety distance corresponding to the current running speed is detected, first prompt information prompting that the obstacle exists in front of the user is displayed to the user, and the method comprises the following steps:
and when detecting that the distance between the barrier and the current running vehicle is smaller than or equal to the current running safety distance corresponding to the current running speed and larger than the brake distance corresponding to the current running speed, displaying the first prompt information to a user.
In an exemplary embodiment of the present disclosure, the method further includes:
and when the deceleration of the current running vehicle is detected, or the distance between the obstacle and the current running vehicle is greater than the current safe distance, eliminating the prompt message.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (11)
1. A driving safety prompting method based on an intelligent terminal is characterized by comprising the following steps:
acquiring a front view image of a currently running vehicle through a camera device of the intelligent terminal;
acquiring the distance between an obstacle in the front view image and the current running vehicle by using a video ranging technology;
and when the distance between the obstacle and the current running vehicle is detected to be smaller than or equal to the current safe distance, displaying prompt information to a user.
2. The method of claim 1, wherein the obtaining the distance between the obstacle in the image of the front view and the currently traveling vehicle by using a video ranging technique comprises:
acquiring the distance between the barrier and the intelligent terminal by using a video ranging technology; subtracting the length of the head of the current running vehicle from the distance between the obstacle and the intelligent terminal to obtain the distance between the obstacle and the current running vehicle;
or,
and obtaining the linear distance between the obstacle and the intelligent terminal by utilizing a video ranging technology, and determining the linear distance as the distance between the obstacle and the current running vehicle.
3. The method of claim 1, wherein when it is detected that the distance between the obstacle and the currently traveling vehicle is less than or equal to a current safe distance, presenting a prompt to a user, comprises:
acquiring the current running speed of the current running vehicle;
inquiring the corresponding relation between the speed and the driving safety distance to obtain the driving safety distance corresponding to the current driving speed;
and when the fact that the distance between the obstacle and the current running vehicle is smaller than or equal to the current running safety distance corresponding to the current running speed is detected, displaying first prompt information prompting that the obstacle exists in front of the user to the user.
4. The method of claim 3, wherein presenting a prompt to a user upon detecting that the distance between the obstacle and the currently traveling vehicle is less than or equal to a current safe distance, further comprises:
inquiring the corresponding relation between the speed and the braking distance to obtain the braking distance corresponding to the current running speed;
when the distance between the obstacle and the current running vehicle is detected to be smaller than or equal to the brake distance corresponding to the current running speed, displaying second prompt information for prompting the user to brake or change the running direction to the user;
when the fact that the distance between the obstacle and the current running vehicle is smaller than or equal to the current running safety distance corresponding to the current running speed is detected, first prompt information prompting that the obstacle exists in front of the user is displayed to the user, and the method comprises the following steps:
and when detecting that the distance between the barrier and the current running vehicle is smaller than or equal to the current running safety distance corresponding to the current running speed and larger than the brake distance corresponding to the current running speed, displaying the first prompt information to a user.
5. The method of claim 1, further comprising:
and when the deceleration of the current running vehicle is detected, or the distance between the obstacle and the current running vehicle is greater than the current safe distance, eliminating the prompt message.
6. The utility model provides a driving safety suggestion device based on intelligent terminal which characterized in that includes:
the image acquisition module is used for acquiring the front view image of the current running vehicle through the camera device of the intelligent terminal;
the distance measurement module is used for acquiring the distance between the obstacle in the front view image and the current running vehicle by utilizing a video distance measurement technology;
and the prompt module is used for displaying prompt information to a user when the fact that the distance between the obstacle and the current running vehicle is smaller than or equal to the current safe distance is detected.
7. The apparatus of claim 6, wherein the ranging module comprises:
the first distance measurement submodule is used for acquiring the distance between the barrier and the intelligent terminal by utilizing a video distance measurement technology; the calculation submodule is used for subtracting the length of the head of the current running vehicle from the distance between the obstacle and the intelligent terminal to obtain the distance between the obstacle and the current running vehicle;
or,
and the second distance measuring submodule is used for obtaining the linear distance between the obstacle and the intelligent terminal by utilizing a video distance measuring technology and determining the linear distance as the distance between the obstacle and the current running vehicle.
8. The apparatus of claim 6, wherein the prompt module comprises:
the vehicle speed obtaining submodule is used for obtaining the current running speed of the current running vehicle;
the safe distance acquisition submodule is used for inquiring the corresponding relation between the speed and the driving safe distance and acquiring the driving safe distance corresponding to the current driving speed;
and the first prompting submodule is used for displaying first prompting information for prompting that the obstacle exists in front of the user when the fact that the distance between the obstacle and the current running vehicle is smaller than or equal to the current running safety distance corresponding to the current running speed is detected.
9. The apparatus of claim 8, wherein the prompt module further comprises:
the braking distance obtaining sub-module is used for inquiring the corresponding relation between the speed and the braking distance and obtaining the braking distance corresponding to the current running speed;
the second prompting submodule is used for displaying second prompting information for prompting the user to brake or change the driving direction to the user when the fact that the distance between the obstacle and the current driving vehicle is smaller than or equal to the brake distance corresponding to the current driving speed is detected;
and the first prompting submodule is used for displaying the first prompting information to a user when detecting that the distance between the barrier and the current running vehicle is smaller than or equal to the current running safety distance corresponding to the current running speed and is larger than the brake braking distance corresponding to the current running speed.
10. The apparatus of claim 6, further comprising:
and the prompt information elimination module is used for eliminating the prompt information when the deceleration of the current running vehicle is detected, or the distance between the obstacle and the current running vehicle is greater than the current safe distance.
11. An intelligent terminal, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring a front view image of a currently running vehicle through a camera device of the intelligent terminal;
acquiring the distance between an obstacle in the front view image and the current running vehicle by using a video ranging technology;
and when the distance between the obstacle and the current running vehicle is detected to be smaller than or equal to the current safe distance, displaying prompt information to a user.
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