WO2018119860A1 - 车辆预警方法、装置及系统 - Google Patents

车辆预警方法、装置及系统 Download PDF

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Publication number
WO2018119860A1
WO2018119860A1 PCT/CN2016/112978 CN2016112978W WO2018119860A1 WO 2018119860 A1 WO2018119860 A1 WO 2018119860A1 CN 2016112978 W CN2016112978 W CN 2016112978W WO 2018119860 A1 WO2018119860 A1 WO 2018119860A1
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WIPO (PCT)
Prior art keywords
vehicle
risk level
surrounding
surrounding vehicle
warning information
Prior art date
Application number
PCT/CN2016/112978
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English (en)
French (fr)
Inventor
彭世平
Original Assignee
深圳市柔宇科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to CN201680042654.8A priority Critical patent/CN108064401A/zh
Priority to PCT/CN2016/112978 priority patent/WO2018119860A1/zh
Publication of WO2018119860A1 publication Critical patent/WO2018119860A1/zh

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems

Definitions

  • the invention relates to the technical field of automobile safety, and particularly relates to a method, device and system for warning of a vehicle.
  • the driver can record the running state of the vehicle in real time through the driving recorder configured in the car, or quickly reach the destination through the convenient route calculated by the navigator, or sense the driving state of the surrounding car or sense the surrounding environment through the sensor in real time, if When the risk of traffic accidents is detected, an early warning message is issued to prompt the driver.
  • the current warning information is not intuitive enough. After receiving the warning information, the driver still needs to judge the danger source by himself, which leads to the driver's reaction time extension, and the driver shifts the eye from the road when the driver views the driving information from the combination meter. The combination meter is then transferred to the road, and its line of sight cannot be kept in front, which leads to an increased risk of driving accidents.
  • the embodiment of the invention discloses a vehicle warning method, device and system, which can display the warning information visually, thereby reducing the risk of driving accidents.
  • an embodiment of the present invention discloses a method for alerting a vehicle, including:
  • the determining the distance between the host vehicle and the surrounding vehicle includes:
  • the surrounding vehicle is a preceding vehicle or a rear vehicle, identifying license plate image information of the preceding vehicle or the rear vehicle, determining a relative distance between the host vehicle and the preceding vehicle or the rear vehicle Or determining a relative distance between the host vehicle and the preceding vehicle or the rear vehicle by distance data collected by a first distance sensor disposed at a front or a rear of the host vehicle;
  • the relative distance between the host vehicle and the side vehicle is determined by distance data collected by a second distance sensor disposed on the body of the host vehicle.
  • the determining, according to the relative distance and the relative speed, a risk level of the surrounding vehicle forming an accident risk to the host vehicle including:
  • the collision time is calculated based on the relative distance and the relative speed, and the risk level of the surrounding vehicle corresponding to the collision duration to the accident risk of the host vehicle is determined.
  • the determining, according to the relative distance and the relative speed, a risk level of the surrounding vehicle forming an accident risk to the host vehicle including:
  • the collision time is calculated based on the relative distance and the relative speed, and the risk level of the surrounding vehicle corresponding to the collision duration to the accident risk of the host vehicle is determined.
  • the method further includes:
  • the displaying the warning information corresponding to the risk level of the surrounding vehicle on the flexible display screen including:
  • the warning information corresponding to the risk level of the surrounding vehicle is displayed on the flexible display screen.
  • the method before the displaying the warning information corresponding to the risk level of the surrounding vehicle on the flexible display screen, the method further includes:
  • the displaying the warning information corresponding to the risk level of the surrounding vehicle on the flexible display screen including:
  • the method before the displaying the warning information corresponding to the risk level of the surrounding vehicle on the flexible display screen, the method further includes:
  • the displaying the warning information corresponding to the risk level of the surrounding vehicle on the flexible display screen including:
  • Pre-warning information corresponding to the risk level of the surrounding vehicle is displayed in the imaging range through the flexible display screen;
  • the warning information corresponding to the risk level of the surrounding vehicle is displayed on the flexible display screen at a position specified by the preset rule outside the imaging range.
  • the method further includes:
  • a warning tone corresponding to the warning information is output.
  • an embodiment of the present invention discloses a vehicle early warning device, including:
  • a first determining unit configured to determine a relative distance between the host vehicle and the surrounding vehicle, and a relative speed of the host vehicle and the surrounding vehicle;
  • a second determining unit configured to determine, according to the relative distance and the relative speed, a risk level of the surrounding vehicle forming an accident risk for the host vehicle
  • a display unit configured to display, on a flexible display screen, warning information corresponding to a risk level of the surrounding vehicle, the flexible display screen being attached to the window, and displaying the warning information on the flexible display screen
  • the location is associated with an imaging location of the surrounding vehicle on the window.
  • the first determining unit is specifically configured to:
  • the surrounding vehicle is a preceding vehicle or a rear vehicle, identifying license plate image information of the preceding vehicle or the rear vehicle, determining a relative distance between the host vehicle and the preceding vehicle or the rear vehicle Or determining a relative distance between the host vehicle and the preceding vehicle or the rear vehicle by distance data collected by a first distance sensor disposed at a front or a rear of the host vehicle;
  • the relative distance between the host vehicle and the side vehicle is determined by distance data collected by a second distance sensor disposed on the body of the host vehicle.
  • the second determining unit is specifically configured to:
  • the collision time is calculated based on the relative distance and the relative speed, and the risk level of the surrounding vehicle corresponding to the collision duration to the accident risk of the host vehicle is determined.
  • the second determining unit is specifically configured to:
  • the collision time is calculated based on the relative distance and the relative speed, and the risk level of the surrounding vehicle corresponding to the collision duration to the accident risk of the host vehicle is determined.
  • the device further includes:
  • a detecting unit configured to detect whether the risk level exceeds a preset risk level
  • the display unit is further configured to display, on the flexible display screen, the warning information corresponding to the risk level of the surrounding vehicle if the result of the detection by the detecting unit is YES.
  • the device further includes:
  • a third determining unit configured to determine, according to the risk level of the surrounding vehicle, information content and an information format of the early warning information corresponding to the risk level;
  • a fourth determining unit determining, according to location information of the surrounding vehicle, a display manner of the early warning information
  • the display unit is further configured to display the information content of the early warning information on the flexible display screen according to the information format, and display according to the determined display manner.
  • the device further includes:
  • An acquisition unit for collecting environmental images presented on the window An acquisition unit for collecting environmental images presented on the window
  • a parsing unit configured to parse a vehicle profile in the environmental imaging, and determine an imaging range of the surrounding vehicle on the window according to the vehicle profile;
  • the display unit is further configured to display, by using the flexible display screen, the warning information corresponding to the risk level of the surrounding vehicle in the imaging range; or, according to a preset rule, the risk to the surrounding vehicle
  • the warning information corresponding to the level is displayed by the flexible display screen at a position specified by the preset rule outside the imaging range.
  • the device further includes:
  • An output unit configured to: if the surrounding vehicle is a rear vehicle or a side vehicle, after the display unit displays the warning information corresponding to the risk level of the surrounding vehicle on the flexible display screen, outputting the warning information Corresponding warning tone.
  • an embodiment of the present invention discloses a vehicle early warning device, including: a processor, a memory, and a communication bus, wherein the processor is coupled to the memory through the communication bus; the memory is stored The program code is executable; the processor is configured to support the vehicle warning device to perform a corresponding function in the method provided by the first aspect.
  • the memory is used to store the necessary program instructions and data for the vehicle warning device.
  • an embodiment of the present invention discloses a vehicle early warning system, which includes a vehicle warning device, at least one flexible display screen, and a data collection device.
  • the data collection device is configured to collect surrounding vehicle information, and transmit the collected surrounding vehicle information to the vehicle early warning device;
  • the vehicle early warning device is configured to generate early warning information according to the surrounding vehicle information, and transmit the early warning information to the at least one flexible display screen for display;
  • the at least one flexible display screen is attached to the at least one window
  • the vehicle warning device includes any one of the vehicle warning devices of the second aspect.
  • the vehicle warning system may further include:
  • a speaker device for playing a warning sound output by the vehicle warning device.
  • an embodiment of the present invention discloses a computer storage medium for storing computer software instructions for use in the vehicle warning device provided in the above third aspect, comprising a program designed to execute the method in the first aspect.
  • determining a relative distance between the host vehicle and the surrounding vehicle, and the host vehicle and the vehicle The relative speed of the surrounding vehicles may be determined according to the relative distance and the relative speed, and the risk level of the surrounding vehicle forming an accident risk to the host vehicle may be determined, and the warning information corresponding to the risk level of the surrounding vehicle may be displayed on the flexible display screen, and the warning is
  • the display position of the information on the flexible display screen can be associated with the imaged position of the surrounding vehicle on the window. In the above manner, the warning information can be displayed intuitively and effectively, thereby reducing the risk of accidents.
  • FIG. 1 is a schematic structural diagram of a vehicle early warning system according to an embodiment of the present invention.
  • FIG. 2 is a schematic flow chart of a vehicle warning method disclosed in an embodiment of the present invention.
  • FIG. 3 is a schematic flow chart of another vehicle warning method disclosed in an embodiment of the present invention.
  • FIG. 4 is a schematic flow chart of still another vehicle warning method disclosed in an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a unit of a vehicle early warning device according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a vehicle early warning device according to an embodiment of the present invention.
  • references to "an embodiment” herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the invention.
  • the appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.
  • FIG. 1 is a vehicle warning system disclosed in an embodiment of the present invention.
  • the system can include a vehicle warning device 101, at least one flexible display screen 102, and a data collection device 103.
  • the input of the vehicle early warning device 101 is connected to the output of the data acquisition device 103; the output of the vehicle early warning device 101 is connected to the input of at least one flexible display 102.
  • the data collection device 103 may include a distance measuring sensor, a speed measuring sensor, a camera, and the like.
  • the ranging sensor may include at least one of an infrared sensor, a laser sensor, or other ranging sensor, and the speed sensor may sense a relative speed of the host vehicle and the surrounding vehicle, wherein the relative speed described in the embodiment of the present invention is the vehicle and The sum of the speeds of the surrounding vehicles in the forward direction of the host vehicle.
  • the camera can be used to capture the image of the environment presented on the window, or directly capture the image of the surrounding vehicle.
  • Each device in the data acquisition device can be evenly distributed around the vehicle, or at least one device can be configured in at least one of the body, the front, and the rear.
  • the data collection device 103 can collect surrounding vehicle information, such as collecting the relative distance between the host vehicle and the surrounding vehicle through the ranging sensor, and collecting the relative speed of the host vehicle and the surrounding vehicle through the speed measuring sensor.
  • the collected information of the surrounding vehicles can be transmitted to the vehicle warning device 101.
  • the vehicle warning device 101 can perform analysis processing on the data transmitted by the data collection device 103, and can further determine the risk level of the surrounding vehicle according to the relative distance between the host vehicle and the surrounding vehicle and the relative speed of the host vehicle and the surrounding vehicle, and can be determined according to The risk level generates corresponding warning information.
  • the vehicle warning device 101 can transmit the generated warning information to the flexible display 102 for display.
  • the flexible display screen 102 is attached to at least one of the windows.
  • Flexible display described in the embodiments of the present invention The screen 103 may include at least one of a flexible OLED (Organic Light-Emitting Diode) display, a flexible LCD (Liquid Crystal Display), or other flexible display.
  • the display characteristic of the flexible display screen 102 is that the flexible display screen 102 displays a transparent state when the display signal is not output to the flexible display screen 102.
  • the flexible display screen 102 can be attached to the front window of the vehicle, the rear window, and the body window.
  • the flexible display screen 102 can be attached to the window including, but not limited to, being attached to the inner side surface of the window, the outer side surface, or integrated into the window.
  • the vehicle warning device 101 can transmit different warning information to different flexible display screens 102 according to the location of the surrounding vehicles. For example, if the surrounding vehicle is a preceding vehicle, the warning message is transmitted to the flexible display screen 102 that fits over the front window.
  • the system can also include a speaker device 104.
  • the warning information generated by the vehicle warning device 101 may include sound information in addition to the display information. If the vehicle warning device 101 generates an alert tone, it can be transmitted to the speaker device 104 for playback.
  • the method embodiment in the embodiment of the present invention is described in detail in conjunction with the above system.
  • the method embodiment of the present invention can be implemented by the vehicle warning device disclosed in the embodiment of the present invention.
  • FIG. 2 is a schematic flowchart diagram of a vehicle warning method according to an embodiment of the present invention. As shown in FIG. 2, the method includes at least the following steps.
  • step S201 the relative distance between the host vehicle and the surrounding vehicle and the relative speed of the host vehicle and the surrounding vehicle are determined.
  • the vehicle warning device may determine the relative distance of the host vehicle from the surrounding vehicle and the relative speed of the host vehicle to the surrounding vehicle.
  • the vehicle early warning device may directly obtain the foregoing data information from the data collection device, or the vehicle early warning device may determine the data information by processing the original data by collecting the original data; for example, the vehicle warning device may pass through with the surrounding
  • the vehicle communication acquires the speed of the surrounding vehicle and can determine the relative speed of the host vehicle and the surrounding vehicle by reading the speed of the host vehicle.
  • the vehicle warning device acquires the relative speed of the host vehicle and the surrounding vehicle through the speed measuring sensor.
  • the relative speed described in the embodiment of the present invention is the sum of the speeds of the vehicle and the surrounding vehicles in the forward direction of the host vehicle.
  • the foregoing determining the relative distance between the host vehicle and the surrounding vehicle includes the following steps:
  • the surrounding vehicle is a preceding vehicle or a rear vehicle
  • the license plate image information of the preceding vehicle or the rear vehicle is identified, the relative distance between the host vehicle and the preceding vehicle or the rear vehicle is determined, or the first distance is set at the front or rear of the vehicle.
  • the distance data collected by the sensor determines the relative distance between the host vehicle and the preceding vehicle or the rear vehicle;
  • the relative distance between the host vehicle and the side vehicle is determined by the distance data collected by the second distance sensor provided on the vehicle body of the host vehicle.
  • the relative distance between the host vehicle and the side vehicle may be determined by the distance data collected by the host vehicle from the distance sensor disposed on the vehicle body in the same direction as the side vehicle. If the relative distance of the preceding vehicle or the rear vehicle from the host vehicle is determined, the relative distance between the host vehicle and the preceding vehicle or the rear vehicle is determined in addition to the distance data collected by the front or rear distance sensor.
  • the image information of the preceding vehicle or the rear vehicle may also be collected by a camera disposed at the front or the rear of the vehicle, and the license plate image information may be identified from the image information, and the vehicle may be determined according to the imaging ratio of the license plate image and the vehicle image. The relative distance from the vehicle in front and the vehicle in the rear. More accurate distance information can be determined by identifying license plate information.
  • Step S202 determining a risk level of the surrounding vehicle forming an accident risk for the host vehicle according to the relative distance and the relative speed.
  • the risk level of the surrounding vehicle forming an accident risk for the host vehicle may be determined according to the relative distance and the relative speed.
  • the vehicle early warning device may determine the risk level of the surrounding vehicle in combination with the relative distance and the relative speed, that is, the closer the relative distance is and the higher the relative speed, the higher the risk level of the surrounding vehicle is determined.
  • the vehicle warning device determines the risk level of the surrounding vehicle by the relative distance or the relative speed, respectively.
  • the vehicle warning device may calculate the collision duration by the relative distance and the relative speed of the vehicle, and determine the risk level according to the calculated duration of the collision.
  • this step can be implemented by any one of the following methods:
  • the collision time is calculated based on the relative distance and the relative speed, and the risk level of the surrounding vehicle corresponding to the collision duration for the accident risk of the own vehicle is determined.
  • the relative distance between the host vehicle and the surrounding vehicle is less than a preset distance threshold. If it is smaller, the risk level of the surrounding vehicle is determined to be the first risk level regardless of the current relative speed.
  • the first risk level may be the highest risk level or a risk level corresponding to the relative distance in the correspondence table of the relative distance and the risk level. If it is greater than, the collision duration can be further calculated according to the relative distance and the relative speed, and the risk level corresponding to the collision duration is determined.
  • the correspondence between the collision duration and the risk level may be determined by searching a preset correspondence table.
  • the collision time is calculated based on the relative distance and the relative speed, and the risk level of the surrounding vehicle corresponding to the collision duration for the accident risk of the own vehicle is determined.
  • the determined relative speed is greater than a preset speed threshold. If it is greater than, it indicates that the relative speed of the surrounding vehicle is high within the detection range of the host vehicle, and there is a high risk of traffic accident, and the risk level of the surrounding vehicle is determined to be the second risk level.
  • the second risk level may be the same as the first risk level, and may be different, and is not limited by the embodiment of the present invention.
  • the second risk level may be a risk level corresponding to the relative speed in the correspondence table of the relative speed and the risk level. If it is smaller, the collision duration can be further calculated according to the relative distance and the relative speed, and the risk level corresponding to the collision duration is determined.
  • the correspondence between the collision duration and the risk level may be determined by searching a preset correspondence table.
  • Table 1 shows the correspondence between the distance, relative speed, collision duration and risk level of the vehicle and surrounding vehicles.
  • the following example uses the risk level as an example of three risk levels. Of course, more risk levels can be included in the correspondence.
  • the vehicle warning device can first determine whether the relative distance of the surrounding vehicles is less than 10 m. If it is less than 10m, it is determined that the risk level is high; if it is greater than 10m, the collision time can be determined by the determined relative distance and the relative speed, so that the lookup table 1 determines that the wind direction level corresponding to the collision time is the surrounding vehicle. Risk level.
  • the vehicle warning device can first determine whether the relative speed of the surrounding vehicles is greater than 120 km/h. If it is greater than, the risk level is determined to be high; if less than, the collision time is determined by the determined relative distance and the relative speed, so that the lookup table 1 determines the wind direction level corresponding to the collision duration. The risk level for the surrounding vehicle.
  • the risk level corresponding to the relative vehicle distance is determined by the relative vehicle distance alone, or the risk level corresponding to the relative vehicle distance is determined by the relative speed alone.
  • the correspondence table of the relative distance and the risk level, the correspondence table of the relative speed and the risk level, and the correspondence table of the collision duration and the risk level may be respectively specified. The embodiments of the present invention are not limited herein.
  • Step S203 displaying the warning information corresponding to the risk level of the surrounding vehicle on the flexible display screen, and the flexible display screen is attached to the window, and the display position of the warning information on the flexible display screen and the display of the surrounding vehicle on the window Location associated.
  • the warning information corresponding to the risk level may be determined.
  • the warning information can be displayed on the corresponding flexible display.
  • the display position of the warning information on the flexible display screen is associated with the image display position of the surrounding vehicle on the window.
  • the warning information is also different, for example, the risk level corresponds to the information content and the information format of the warning information, such as the display of the warning information corresponding to the early warning information corresponding to the low risk level and the lower the risk level. The effect is strong.
  • the warning information can be displayed on the corresponding flexible display. If the surrounding vehicle is the front vehicle, the warning information display is attached to the flexible display on the front window.
  • the warning information will be Display a flexible display that fits over the rear window This can alert the driver of the rear vehicle to the risk of driving. And the display position of the warning information on the flexible display screen can be associated with the imaged display position of the surrounding vehicle on the window. Thereby, the association relationship between the warning information and the surrounding vehicles can be intuitively determined. In turn, the driver can effectively avoid the risk of accidents.
  • the warning information is displayed on the flexible display screen of the vehicle body window or the rear window
  • the warning information and the corresponding vehicle image may be displayed in a specific display area of the flexible display screen of the front window, in the warning
  • the driver of the vehicle can also be alerted to the driver of the surrounding vehicle.
  • determining the relative distance between the host vehicle and the surrounding vehicle and the relative speed of the host vehicle and the surrounding vehicle, the risk level of the surrounding vehicle forming an accident risk for the host vehicle may be determined according to the relative distance and the relative speed, and may be The warning information corresponding to the risk level of the surrounding vehicle is displayed on the flexible display screen, and the display position of the warning information on the flexible display screen can be associated with the imaging position of the surrounding vehicle on the window. In the above manner, the warning information can be displayed intuitively and effectively, thereby reducing the risk of accidents.
  • FIG. 3 is a schematic flowchart diagram of another vehicle warning method according to an embodiment of the present invention. As shown in FIG. 3, the method includes at least the following steps.
  • Step S301 determining a relative distance between the host vehicle and the surrounding vehicle, and a relative speed of the host vehicle and the surrounding vehicle.
  • Step S302 determining a risk level of the surrounding vehicle forming an accident risk for the host vehicle according to the relative distance and the relative speed.
  • Step S303 detecting whether the risk level exceeds a preset level.
  • the warning information corresponding to the risk level may not be displayed, or the warning information corresponding to the risk level may not be generated. That is to say, the warning information corresponding to the risk level is displayed on the flexible display only when the risk level of the surrounding vehicle exceeds the preset risk level. For example, if it is determined that the risk level is extremely low, or the risk level is low, the warning information corresponding to the above risk level may not be displayed, or the warning information may not be generated.
  • the risk level may correspond to the risk level value, and whether the risk level needs to generate the early warning information is determined by detecting whether the risk level value of the risk level exceeds a preset level threshold. For example, if the preset level threshold is 3, the risk level with 0, 1, 2, or 3 risk level may not need to generate warning information.
  • Step S304 if yes, determining a pre-corresponding to the risk level according to the risk level of the surrounding vehicle The information content and information format of the police information.
  • the information content and the information format of the warning information corresponding to the risk level may be determined.
  • the risk content is different, and the information content and information format of the warning information are different.
  • the information content may include text content or image content, and the like. For example, if the risk level is high, the information content is short, the color is clear, and the display effect is strong; if the risk level is low, the information content is detailed, and the display effect is soft.
  • the embodiments of the present invention are not limited herein.
  • Step S305 determining the display manner of the early warning information according to the location information of the surrounding vehicles.
  • the manner in which the warning information is displayed may also be determined based on the location information of the surrounding vehicles.
  • the location information includes, but is not limited to, a front position, a rear position, or a side position. That is, the location of the surrounding vehicles is different, and the display manner is different. For example, if the surrounding vehicle is a rear vehicle or a side vehicle, the display frequency of the warning information is fast, so as to be able to prompt the attention of the driver of the rear vehicle or the side vehicle; if the surrounding vehicle is a preceding vehicle, the display frequency of the warning information is slow. To adapt to the visual experience of the driver of the vehicle.
  • Step S306 displaying the information content of the warning information on the flexible display screen according to the information format, and displaying according to the determined display manner.
  • the warning information may be displayed on the flexible display screen according to the determined display manner.
  • the flexible display screen is associated with the surrounding vehicle, that is, if the surrounding vehicle is a rear vehicle, the warning information is displayed on the flexible display screen attached to the rear window of the host vehicle.
  • the display position of the warning information on the flexible display screen can be determined by the method described in the following embodiments.
  • Step S307 if the surrounding vehicle is a rear vehicle or a side vehicle, a warning sound corresponding to the warning information is output.
  • the warning information is displayed on a flexible display attached to the rear window or the body window to prompt the rear vehicle or the side vehicle to drive
  • the effect of the member, while displaying the warning information can also output a warning tone corresponding to the warning information to prompt the driver of the vehicle.
  • the warning sound corresponding to the warning information may be output to the speaker device included in the above system, or the warning sound may be output through the speaker unit configured in the vehicle early warning device.
  • the risk level is different, the warning information is different, and the corresponding warning tone is different.
  • the display effect of the police information is strong, and the corresponding warning sound has a large volume and high audio; if the risk level is low, the display effect of the warning information is soft, and the corresponding warning sound has a small volume and low audio.
  • determining the relative distance between the host vehicle and the surrounding vehicle and the relative speed of the host vehicle and the surrounding vehicle, the risk level of the surrounding vehicle forming an accident risk for the host vehicle may be determined according to the relative distance and the relative speed, and may be The warning information corresponding to the risk level of the surrounding vehicle is displayed on the flexible display screen, and the display position of the warning information on the flexible display screen can be associated with the imaging position of the surrounding vehicle on the window. In the above manner, the warning information can be displayed intuitively and effectively, thereby reducing the risk of accidents.
  • FIG. 4 is a schematic flowchart diagram of still another vehicle warning method according to an embodiment of the present invention. As shown in FIG. 4, the method includes at least the following steps.
  • step S401 the distance between the host vehicle and the surrounding vehicle and the relative speed of the host vehicle and the surrounding vehicles are determined.
  • Step S402 determining a risk level of the surrounding vehicle forming an accident risk for the host vehicle according to the determined distance and the relative speed.
  • Step S403 detecting whether the risk level exceeds a preset risk level.
  • Step S404 if yes, collecting the environmental image presented on the window.
  • the warning information corresponding to the risk level needs to be displayed on the flexible display screen attached to the window.
  • the environmental image presented on the window can be captured.
  • the environment image on the window can be recorded by a camera or the like, and transmitted to the vehicle warning device.
  • Step S405 analyzing the vehicle contour in the environmental imaging, and determining the imaging range of the surrounding vehicle on the window according to the vehicle contour.
  • the acquired environmental image may be parsed to resolve a vehicle profile from which the imaging range of the surrounding vehicle corresponding to the vehicle profile on the window, ie, the imaging position, is determined. Further, the display position of the warning information can be determined according to the imaging range.
  • step S406 the warning information corresponding to the risk level of the surrounding vehicle is displayed in the imaging range through the flexible display screen.
  • step S406 can be replaced by the following steps:
  • the warning information corresponding to the risk level of the surrounding vehicles is passed through the flexible display Displays the position specified by the preset rule outside the imaging range.
  • the warning information may be displayed in the imaging range of the surrounding vehicle, or may be displayed outside the imaging range of the surrounding vehicle according to a preset rule, for example, the preset rule specifies the display position of the warning information and the surrounding vehicle.
  • the preset rule specifies the display position of the warning information and the surrounding vehicle.
  • the display distance between the contours of the vehicle is displayed, and the warning information is displayed outside the display distance.
  • the auxiliary relationship between the warning information and the surrounding vehicle may be determined by other auxiliary display identifiers.
  • step S407 if the surrounding vehicle is a rear vehicle or a side vehicle, a warning sound corresponding to the warning information is output.
  • determining the distance between the host vehicle and the surrounding vehicle and the relative speed of the host vehicle and the surrounding vehicle determining the risk level of the surrounding vehicle forming an accident risk for the host vehicle according to the determined distance and the relative speed, and
  • the warning information corresponding to the risk level of the surrounding vehicle is displayed on the flexible display screen, and the display position of the warning information on the flexible display screen can be associated with the display position of the surrounding vehicle on the window. In the above manner, the warning information can be displayed intuitively and effectively, thereby reducing the risk of accidents.
  • the vehicle warning device performs the steps in the embodiment shown in FIG. 3 to determine the display format and display mode of the warning information, and performs the steps in the embodiment shown in FIG. 4 to determine the display position of the warning information.
  • the vehicle warning device performs the steps in the embodiment shown in FIG. 3 to determine the display format and display mode of the warning information, and performs the steps in the embodiment shown in FIG. 4 to determine the display position of the warning information.
  • FIG. 5 is a structural diagram of a unit of a vehicle early warning device according to an embodiment of the present invention.
  • the vehicle warning device may include a first determining unit 501, a second determining unit 502, and a display unit 503.
  • the first determining unit 501 is configured to determine a relative distance between the host vehicle and the surrounding vehicle, and a relative speed of the host vehicle and the surrounding vehicle.
  • a second determining unit 502 configured to determine, according to the relative distance and the relative speed, a risk level of the surrounding vehicle forming an accident risk for the host vehicle;
  • a display unit 503 configured to display the warning information corresponding to the risk level of the surrounding vehicle in flexibility
  • the flexible display is attached to the window, and the display position of the warning information on the flexible display screen is associated with the imaging position of the surrounding vehicle on the window.
  • the first determining unit 501 is specifically configured to:
  • the surrounding vehicle is a preceding vehicle or a rear vehicle
  • the license plate image information of the preceding vehicle or the rear vehicle is identified, the relative distance between the host vehicle and the preceding vehicle or the rear vehicle is determined, or the first distance is set at the front or rear of the vehicle.
  • the distance data collected by the sensor determines the relative distance between the host vehicle and the preceding vehicle or the rear vehicle;
  • the relative distance between the host vehicle and the side vehicle is determined by the distance data collected by the second distance sensor provided on the vehicle body of the host vehicle.
  • the second determining unit 502 is specifically configured to:
  • the collision time is calculated based on the distance and the relative speed, and the risk level of the surrounding vehicle corresponding to the collision duration for the accident risk of the own vehicle is determined.
  • the second determining unit 502 is specifically configured to:
  • the collision time is calculated based on the relative distance and the relative speed, and the risk level of the surrounding vehicle corresponding to the collision duration for the accident risk of the own vehicle is determined.
  • the device further includes:
  • the detecting unit 504 is configured to detect whether the risk level exceeds a preset risk level
  • the display unit 503 is further configured to display the warning information corresponding to the risk level of the surrounding vehicle on the flexible display screen if the result of the detection by the detecting unit is YES.
  • the device further includes:
  • the third determining unit 505 is configured to determine, according to the risk level of the surrounding vehicle, the information content and the information format of the early warning information corresponding to the risk level;
  • the fourth determining unit 506 determines the display manner of the early warning information according to the location information of the surrounding vehicle;
  • the display unit 503 is further configured to display the information content of the warning information on the flexible display screen according to the information format, and display the display according to the determined display manner.
  • the device further includes:
  • the collecting unit 507 is configured to collect environmental images presented on the window
  • the parsing unit 508 is configured to parse the vehicle contour in the environment imaging, and determine an imaging range of the surrounding vehicle on the window according to the vehicle contour;
  • the display unit 503 is further configured to display the warning information corresponding to the risk level of the surrounding vehicle in the imaging range through the flexible display screen; or, according to the preset rule, the warning information corresponding to the risk level of the surrounding vehicle passes through the flexible display screen Displays the position specified by the preset rule outside the imaging range.
  • the device further includes:
  • the output unit 509 is configured to output a warning sound corresponding to the warning information after the display unit 503 displays the warning information corresponding to the risk level of the surrounding vehicle on the flexible display screen if the surrounding vehicle is a rear vehicle or a side vehicle.
  • the foregoing functional unit is used to implement a specific implementation method of the corresponding step in the foregoing method embodiment. I will not repeat them here.
  • a “unit” herein may refer to an application-specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or other devices that provide the functionality described above. .
  • ASIC application-specific integrated circuit
  • vehicle warning device shown in FIG. 5 can take the form shown in FIG. 6 below.
  • the electronic device can be implemented in the structure of FIG. 4.
  • the electronic device can include a processor 601, a memory 602, a communication interface 603, and a communication bus 604.
  • the processor 601, the memory 602, and the display screen 603 are coupled through a communication bus. ;
  • the processor 601 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the execution of the above program. integrated circuit.
  • the processor 601 can also be used to perform the methods in the method embodiments of FIG. 2 to FIG. 4, and can also be used to perform the functions of the functional units in the apparatus shown in FIG. 5.
  • the processor 601 calls the executable program code stored in the memory 602, and performs the following steps:
  • the warning information corresponding to the risk level of the surrounding vehicle is displayed on the flexible display screen, and the flexible display screen is attached to the window, and the display position of the warning information on the flexible display screen is associated with the imaging position of the surrounding vehicle on the window. .
  • the specific manner in which the processor 601 determines the distance between the host vehicle and the surrounding vehicle is:
  • the surrounding vehicle is a preceding vehicle or a rear vehicle
  • the license plate image information of the preceding vehicle or the rear vehicle is identified, the relative distance between the host vehicle and the preceding vehicle or the rear vehicle is determined, or the first distance is set at the front or rear of the vehicle.
  • the distance data collected by the sensor determines the relative distance between the host vehicle and the preceding vehicle or the rear vehicle;
  • the relative distance between the host vehicle and the side vehicle is determined by the distance data collected by the second distance sensor provided on the vehicle body of the host vehicle.
  • the specific manner in which the processor 601 determines, according to the relative distance and the relative speed, the risk level of the surrounding vehicle forming an accident risk to the host vehicle is:
  • the collision time is calculated based on the relative distance and the relative speed, and the risk level of the surrounding vehicle corresponding to the collision duration for the accident risk of the own vehicle is determined.
  • the specific manner in which the processor 601 determines, according to the relative distance and the relative speed, the risk level of the surrounding vehicle forming an accident risk to the host vehicle is:
  • the collision time is calculated based on the relative distance and the relative speed, and the risk level of the surrounding vehicle corresponding to the collision duration for the accident risk of the own vehicle is determined.
  • the processor 601 further calls the executable program code stored in the memory 602, and performs the following steps:
  • the warning information corresponding to the risk level of the surrounding vehicles is displayed on the flexible display, including:
  • the warning information corresponding to the risk level of the surrounding vehicle is displayed on the flexible display.
  • the processor 601 before the processor 601 displays the warning information corresponding to the risk level of the surrounding vehicle on the flexible display screen, the processor 601 further calls the executable program code stored in the memory 602, and performs the following steps:
  • the warning information corresponding to the risk level of the surrounding vehicles is displayed on the flexible display, including:
  • the information content of the warning information is displayed on the flexible display screen according to the information format, and is displayed according to the determined display manner.
  • the processor 601 before the processor 601 displays the warning information corresponding to the risk level of the surrounding vehicle on the flexible display screen, the processor 601 further calls the executable program code stored in the memory 602, and performs the following steps:
  • the warning information corresponding to the risk level of the surrounding vehicles is displayed on the flexible display, including:
  • the warning information corresponding to the risk level of the surrounding vehicle is displayed in the imaging range through the flexible display screen;
  • the warning information corresponding to the risk level of the surrounding vehicle is displayed on the flexible display screen at a position specified by a preset rule outside the imaging range.
  • the processor 601 displays the warning information corresponding to the risk level of the surrounding vehicle on the flexible display screen, the processor 601 further invokes the executable program stored in the memory 602. Code, perform the following steps:
  • a warning tone corresponding to the warning information is output.
  • the communication interface 603 is configured to communicate with other devices in the vehicle early warning system, or other electronic devices configured in the vehicle, or surrounding vehicles, and the communication interface supports wired communication and wireless communication.
  • the communication interface can support A variety of network communication protocols or standards.
  • the memory 602 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions.
  • the dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this.
  • the memory 602 can exist independently and be coupled to the processor 601 via a bus. Memory 602 can also be integrated with processor 601.
  • the embodiment of the invention further provides a computer storage medium for storing computer software instructions for use in the vehicle warning device, which comprises a computer program for performing the above method embodiment.
  • embodiments of the present invention can be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program is stored/distributed in a suitable medium, provided with other hardware or as part of the hardware, or in other distributed forms, such as over the Internet or other wired or wireless telecommunication systems.
  • the present invention is directed to a method, apparatus (device) and computer program product of an embodiment of the present invention.
  • Flowcharts and/or block diagrams are described. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

一种车辆预警方法、装置及系统，该方法包括确定本车辆与周围车辆的相对距离，以及本车辆与周围车辆的相对速度（S201）；根据相对距离与相对速度，确定周围车辆对于本车辆形成事故风险的风险等级（S202）；将与周围车辆的风险等级对应的预警信息显示在柔性显示屏上，柔性显示屏贴合在车窗上，预警信息在柔性显示屏上的显示位置与周围车辆在车窗上成像位置相关联（S203）。该方法能够直观显示预警信息，进而降低事故风险。

Description

车辆预警方法、装置及系统 技术领域
本发明涉及汽车安全技术领域，具体涉及一种车辆预警方法、装置及系统。
背景技术
当前汽车可通过配置多种车载电子设备以增强驾驶者的用户体验。例如，驾驶者可通过汽车中配置的行车记录仪实时记录车辆运行状态，或通过导航仪计算的便捷路线快速到达目的地，或者通过传感器实时感测周围汽车的行驶状态或感测周围环境，若检测出交通事故风险，则及时发出预警信息以提示驾驶者。然而，目前发出的预警信息不够直观，驾驶者在接收到预警信息后，仍需要自行判断危险源，导致驾驶者反应时间延长，且驾驶员从组合仪表上查看驾驶信息时，眼睛从道路转移到组合仪表再转移到道路，其视线不能保持在前方,进而导致驾驶事故风险的增加。
发明内容
本发明实施例公开了一种车辆预警方法、装置及系统，能够直观显示预警信息，进而降低驾驶事故风险。
第一方面，本发明实施例公开了一种车辆预警方法，包括：
确定本车辆与周围车辆的相对距离，以及所述本车辆与所述周围车辆的相对速度；
根据所述相对距离与所述相对速度，确定所述周围车辆对于所述本车辆形成事故风险的风险等级；
将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上，所述柔性显示屏贴合在车窗上，所述预警信息在所述柔性显示屏上的显示位置与所述周围车辆在所述车窗上的成像位置相关联。
可选的，所述确定本车辆与周围车辆的距离，包括：
若所述周围车辆为前方车辆或后方车辆，识别所述前方车辆或所述后方车辆的车牌图像信息，确定所述本车辆与所述前方车辆或所述后方车辆的相对距 离，或者，通过设置在所述本车辆的车头或车尾的第一距离传感器采集的距离数据确定所述本车辆与所述前方车辆或所述后方车辆的相对距离；
若所述周围车辆为侧方车辆，通过设置在所述本车辆的车身的第二距离传感器采集的距离数据确定所述本车辆与所述侧方车辆的相对距离。
可选的，所述根据所述相对距离与所述相对速度，确定所述周围车辆对于所述本车辆形成事故风险的风险等级，包括：
判断所述相对距离是否小于预设距离阈值；
若是，确定所述周围车辆对于所述本车辆形成事故风险的风险等级为第一风险等级；
若否，根据所述相对距离与所述相对速度计算出相撞时长，确定与所述相撞时长对应的所述周围车辆对于所述本车辆形成事故风险的风险等级。
可选的，所述根据所述相对距离与所述相对速度，确定所述周围车辆对于所述本车辆形成事故风险的风险等级，包括：
判断所述相对速度是否大于预设速度阈值；
若是，确定所述周围车辆对于所述本车辆形成事故风险的风险等级为第二风险等级；
若否，根据所述相对距离与所述相对速度计算出相撞时长，确定与所述相撞时长对应的所述周围车辆对于所述本车辆形成事故风险的风险等级。
可选的，所述根据所述相对距离与所述相对速度，确定所述周围车辆对于所述本车辆形成事故风险的风险等级之后，所述方法还包括：
检测所述风险等级是否超过预设风险等级；
所述将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上，包括：
若是，将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上。
可选的，所述将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上之前，所述方法还包括：
根据所述周围车辆的风险等级，确定与所述风险等级对应的预警信息的信息内容及信息格式；
根据所述周围车辆的位置信息，确定所述预警信息的显示方式；
所述将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上，包括：
将所述预警信息的所述信息内容按照所述信息格式显示在所述柔性显示屏上，并按照所述确定的显示方式进行显示。
可选的，所述将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上之前，所述方法还包括：
采集车窗上呈现的环境成像；
解析所述环境成像中的车辆轮廓，并根据所述车辆轮廓确定所述周围车辆在所述车窗上的成像范围；
所述将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上，包括：
将与所述周围车辆的风险等级对应的预警信息通过所述柔性显示屏显示在所述成像范围内；或者，
按照预设规则，将与所述周围车辆的风险等级对应的预警信息通过所述柔性显示屏显示在所述成像范围外的所述预设规则规定的位置。
可选的，若所述周围车辆为后方车辆或侧方车辆，所述将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上之后，所述方法还包括：
输出与所述预警信息对应的警示音。
第二方面，本发明实施例公开了一种车辆预警装置，包括：
第一确定单元，用于确定本车辆与周围车辆的相对距离，以及所述本车辆与所述周围车辆的相对速度；
第二确定单元，用于根据所相对距离与所述相对速度，确定所述周围车辆对于所述本车辆形成事故风险的风险等级；
显示单元，用于将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上，所述柔性显示屏贴合在车窗上，所述预警信息在所述柔性显示屏上的显示位置与所述周围车辆在所述车窗上的成像位置相关联。
可选的，所述第一确定单元具体用于：
若所述周围车辆为前方车辆或后方车辆，识别所述前方车辆或所述后方车辆的车牌图像信息，确定所述本车辆与所述前方车辆或所述后方车辆的相对距 离，或者，通过设置在所述本车辆的车头或车尾的第一距离传感器采集的距离数据确定所述本车辆与所述前方车辆或所述后方车辆的相对距离；
若所述周围车辆为侧方车辆，通过设置在所述本车辆的车身的第二距离传感器采集的距离数据确定所述本车辆与所述侧方车辆的相对距离。
可选的，所述第二确定单元具体用于：
判断所述相对距离是否小于预设距离阈值；
若是，确定所述周围车辆对于所述本车辆形成事故风险的风险等级为第一风险等级；
若否，根据所述相对距离与所述相对速度计算出相撞时长，确定与所述相撞时长对应的所述周围车辆对于所述本车辆形成事故风险的风险等级。
可选的，所述第二确定单元具体用于：
判断所述相对速度是否大于预设速度阈值；
若是，确定所述周围车辆对于所述本车辆形成事故风险的风险等级为第二风险等级；
若否，根据所述相对距离与所述相对速度计算出相撞时长，确定与所述相撞时长对应的所述周围车辆对于所述本车辆形成事故风险的风险等级。
可选的，所述装置还包括：
检测单元，用于检测所述风险等级是否超过预设风险等级；
所述显示单元，还用于若所述检测单元检测的结果为是，将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上。
可选的，所述装置还包括：
第三确定单元，用于根据所述周围车辆的风险等级，确定与所述风险等级对应的预警信息的信息内容及信息格式；
第四确定单元，根据所述周围车辆的位置信息，确定所述预警信息的显示方式；
所述显示单元，还用于将所述预警信息的所述信息内容按照所述信息格式显示在所述柔性显示屏上，并按照所述确定的显示方式进行显示。
可选的，所述装置还包括：
采集单元，用于采集车窗上呈现的环境成像；
解析单元，用于解析所述环境成像中的车辆轮廓，并根据所述车辆轮廓确定所述周围车辆在所述车窗上的成像范围；
所述显示单元，还用于将与所述周围车辆的风险等级对应的预警信息通过所述柔性显示屏显示在所述成像范围内；或者，按照预设规则，将与所述周围车辆的风险等级对应的预警信息通过所述柔性显示屏显示在所述成像范围外的所述预设规则规定的位置。
可选的，所述装置还包括：
输出单元，用于若所述周围车辆为后方车辆或侧方车辆，在所述显示单元将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上之后，输出与所述预警信息对应的警示音。
第三方面，本发明实施例公开了一种车辆预警装置，该车辆预警装置包括包括处理器、存储器及通信总线，所述处理器与所述存储器通过所述通信总线耦合；所述存储器存储有可执行程序代码；所述处理器被配置为支持该车辆预警装置执行第一方面提供的方法中相应的功能。存储器用于保存该车辆预警装置必要的程序指令和数据。
第四方面，本发明实施例公开一种车辆预警系统，该系统包括车辆预警装置、至少一个柔性显示屏、数据采集装置。
其中，所述数据采集装置用于采集周围车辆信息，并将所采集的所述周围车辆信息传输至所述车辆预警装置；
所述车辆预警装置用于根据所述周围车辆信息生成预警信息，并将所述预警信息传输至所述至少一个柔性显示屏进行显示；
所述至少一个柔性显示屏贴合在至少一个车窗上；
所述车辆预警装置包括第二方面中任意一种车辆预警装置。
可选的，所述车辆预警系统还可包括：
音箱装置，用于播放所述车辆预警装置输出的警示音。
第四方面，本发明实施例公开一种计算机存储介质，用于储存为上述第三方面提供的车辆预警装置所用的计算机软件指令，其包含用于执行第一方面中方法所设计的程序。
本发明实施例中，确定本车辆与周围车辆的相对距离以及所述本车辆与所 述周围车辆的相对速度，可根据相对距离与相对速度，确定周围车辆对于本车辆形成事故风险的风险等级，并可将与该周围车辆的风险等级对应的预警信息显示在柔性显示屏上，预警信息在柔性显示屏上的显示位置能够与周围车辆在车窗上的成像位置相关联。通过上述方式，能够直观且有效的显示预警信息，进而降低事故风险。
本发明的这些方面或其他方面在以下实施例的描述中会更加简明易懂。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例公开的一种车辆预警系统的架构示意图。
图2是本发明实施例公开的一种车辆预警方法的流程示意图；
图3是本发明实施例公开的另一种车辆预警方法的流程示意图；
图4是本发明实施例公开的又一种车辆预警方法的流程示意图；
图5是本发明实施例公开的一种车辆预警装置的单元示意图；
图6是本发明实施例公开的一种车辆预警装置的结构示意图。
具体实施方式
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
本发明的说明书和权利要求书及附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤 或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本发明的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行描述。为了更好理解本发明实施例中的方法实施例及装置实施例。下面首先对本发明实施例公开的车辆预警系统进行说明。
请参阅图1，图1是本发明实施例公开的一种车辆预警系统。该系统可包括车辆预警装置101、至少一个柔性显示屏102及数据采集装置103。
车辆预警装置101的输入端连接数据采集装置103的输出端；车辆预警装置101的输出端连接至少一个柔性显示屏102的输入端。
其中，数据采集装置103可包括测距传感器、测速传感器、摄像头等器件。测距传感器可包括红外传感器、激光传感器或其他测距传感器中的至少一种，测速传感器可感测本车辆与周围车辆的相对速度，其中，本发明实施例所描述的相对速度为本车辆与周围车辆在本车辆前进方向上的速度之和。摄像头可用于采集呈现在车窗上的环境图像，也可直接采集周围车辆图像。数据采集装置中每种器件可均匀分布在车辆四周，也可配置至少一个器件在车身、车头、车尾中至少一个位置上。
数据采集装置103可采集周围车辆信息，如通过测距传感器采集本车辆与周围车辆的相对距离，通过测速传感器采集本车辆与周围车辆的相对速度等。并可将采集的周围车辆的信息传输至车辆预警装置101。车辆预警装置101可对数据采集装置103传输的数据进行分析处理，并可进一步根据本车辆与周围车辆的相对距离以及本车辆与周围车辆的相对速度等数据确定周围车辆的风险等级，并可根据风险等级生成对应的预警信息。车辆预警装置101可将生成的预警信息传输至柔性显示屏102进行显示。
柔性显示屏102贴合在至少一个车窗上。本发明实施例所描述的柔性显示 屏103可包括柔性OLED(Organic Light-Emitting Diode,有机发光二极管)显示屏、柔性LCD(Liquid Crystal Display,液晶显示屏)、或者其他柔性显示屏中的至少一种。柔性显示屏102的显示特性为在未向柔性显示屏102输出显示信号时，柔性显示屏102显示透明状态。柔性显示屏102可贴合在本车辆的车头车窗、车尾车窗、车身车窗上。其中，柔性显示屏102可贴合于车窗包括但不限于：贴合于车窗内侧表面、外侧表面或者合成于车窗中。
车辆预警装置101可根据周围车辆所在位置的不同，将不同的预警信息传输至不同的柔性显示屏102上。例如，若周围车辆为前方车辆，则将预警信息传输至贴合在车头车窗的柔性显示屏102上。
可选的，该系统还可包括音箱装置104。车辆预警装置101生成的预警信息除包括显示信息外，还可包括声音信息。若车辆预警装置101生成预警提示音后，可传输至音箱装置104进行播放。
车辆预警装置101所执行的具体方法及结构可参见如下描述的本发明方法实施例及装置实施例。
首先结合上述系统，对本发明实施例中的方法实施例进行详细说明。本发明方法实施例可由本发明实施例中公开的车辆预警装置实现。
请参阅图2，图2是本发明实施例公开的一种车辆预警方法的流程示意图。如图2所示，该方法至少包括以下步骤。
步骤S201，确定本车辆与周围车辆的相对距离，以及本车辆与周围车辆的相对速度。
在一个实施例中，车辆预警装置可确定本车辆与周围车辆的相对距离，以及本车辆与周围车辆的相对速度。具体的，车辆预警装置可从数据采集装置中直接获取上述数据信息，或者，车辆预警装置可通过采集原始数据，对原始数据进行处理后，确定上述数据信息；例如，车辆预警装置可通过与周围车辆通信获取周围车辆的速度，并可通过读取本车辆的速度，确定本车辆与周围车辆的相对速度。或者，车辆预警装置通过测速传感器获取本车辆与周围车辆的相对速度。其中，本发明实施例所描述的相对速度为本车辆与周围车辆在本车辆前进方向上的速度之和。
可选的，上述确定本车辆与周围车辆的相对距离，包括以下步骤：
若周围车辆为前方车辆或后方车辆，识别前方车辆或后方车辆的车牌图像信息，确定本车辆与前方车辆或后方车辆的相对距离，或者，通过设置在本车辆的车头或车尾的第一距离传感器采集的距离数据确定本车辆与前方车辆或后方车辆的相对距离；
若周围车辆为侧方车辆，通过设置在本车辆的车身的第二距离传感器采集的距离数据确定本车辆与侧方车辆的相对距离。
具体的，若确定侧方车辆于本车辆的相对距离时，可通过本车辆在与侧方车辆同方向上的车身所配置的距离传感器采集的距离数据确定本车辆与侧方车辆的相对距离。若确定前方车辆或后方车辆距离本车辆的相对距离时，除了通过配置在车头或车尾距离传感器采集的距离数据确定本车辆与前方车辆或后方车辆的相对距离。还可通过设置在车头或车尾的摄像头采集前方车辆或后方车辆的图像信息，并可从该图像信息中识别出车牌图像信息，还可根据车牌图像与该车辆图像的成像比例，确定本车辆与前方车辆与后方车辆的相对距离。通过识别车牌信息能够确定更加精准的车距信息。
步骤S202，根据相对距离与相对速度，确定周围车辆对于本车辆形成事故风险的风险等级。
在一个实施例中，若确定出本车辆与周围车辆的相对距离以及本车辆与周围车辆的相对速度，则可根据相对距离与相对速度，确定周围车辆对于本车辆形成事故风险的风险等级。具体的，车辆预警装置可结合相对距离与相对速度，确定周围车辆的风险等级，即相对距离越近且相对速度越高，确定该周围车辆的风险等级越高。或者，车辆预警装置分别通过相对距离或相对速度确定周围车辆的风险等级。或者，车辆预警装置可通过车辆相对距离与相对速度，计算相撞时长，根据计算的相撞时长，确定风险等级。
可选的，本步骤可具体通过以下任意一种方式实现：
(1)、判断相对距离是否小于预设距离阈值；
若是，确定周围车辆对于本车辆形成事故风险的风险等级为第一风险等级；
若否，根据相对距离与相对速度计算出相撞时长，确定与相撞时长对应的周围车辆对于本车辆形成事故风险的风险等级。
具体的，首先判断本车辆与周围车辆的相对距离是否小于预设距离阈值， 若小于，则无论当前相对速度大小，均确定该周围车辆的风险等级为第一风险等级。其中，第一风险等级可为最高风险等级或者相对距离与风险等级的对应关系表中该相对距离对应的风险等级。若大于，则可进一步根据相对距离与相对速度计算出相撞时长，并确定该相撞时长对应的风险等级。其中，可通过查找预设的对应关系表确定相撞时长与风险等级的对应关系。
(2)、判断相对速度是否大于预设速度阈值；
若是，确定周围车辆对于本车辆形成事故风险的风险等级为第二风险等级；
若否，根据相对距离与相对速度计算出相撞时长，确定与相撞时长对应的周围车辆对于本车辆形成事故风险的风险等级。
具体的，还可通过判断确定的相对速度是否大于预设速度阈值。若大于，则表明在本车辆的检测范围内，该周围车辆的相对速度较高，存在较高的交通事故风险，则确定该周围车辆的风险等级为第二风险等级。其中，第二风险等级与第一风险等级可相同，可不同，本发明实施例不做限定。第二风险等级可为相对速度与风险等级的对应关系表中该相对速度对应的风险等级。若小于，则可进一步根据相对距离与相对速度计算出相撞时长，并确定该相撞时长对应的风险等级。其中，可通过查找预设的对应关系表确定相撞时长与风险等级的对应关系。
上述具体实现中，除第一风险等级及第二风险等级外，还可包括其他风险等级。
举例说明，如下面表1所示，表1为本车辆与周围车辆的距离、相对速度、相撞时长与风险等级的对应关系。以下示例以风险等级为三种风险等级为例，当然，对应关系中还可包括更多的风险等级。
一种方式为车辆预警装置可首先判断周围车辆的相对距离是否小于10m。若小于10m，则确定风险等级为高；若大于10m，则可通过确定的相对距离与相对速度，确定相撞时长，从而查找表1确定与相撞时长相对应的风向等级为该周围车辆的风险等级。
另一种方式为车辆预警装置可首先判断周围车辆的相对速度是否大于120km/h。若大于，则确定风险等级为高；若小于，则可通过确定的相对距离与相对速度，确定相撞时长，从而查找表1确定与相撞时长相对应的风向等级 为该周围车辆的风险等级。
或者，单独通过相对车距确定与相对车距对应的风险等级，或者单独通过相对速度确定与相对车距对应的风险等级。当然，可分别指定相对距离与风险等级的对应关系表、相对速度与风险等级的对应关系表以及相撞时长与风险等级的对应关系表。在此，本发明实施例不做限定。
Figure PCTCN2016112978-appb-000001
表1
步骤S203，将与周围车辆的风险等级对应的预警信息显示在柔性显示屏上，柔性显示屏贴合在车窗上，预警信息在柔性显示屏上的显示位置与周围车辆在车窗上的显示位置相关联。
在一个实施例中，若确定出周围车辆的风险等级，即可确定出与该风险等级对应的预警信息。并可将预警信息显示在对应的柔性显示屏上。其中，预警信息在柔性显示屏上的显示位置与周围车辆在车窗上的成像显示位置相关联。具体的，风险等级不同，则预警信息也不同，如风险等级与预警信息的信息内容及信息格式相对应，如风险等级高所对应的预警信息相较于风险等级低所对应的预警信息的显示效果强烈。并可将预警信息显示在对应的柔性显示屏上，如周围车辆为前方车辆，则将预警信息显示贴合在车头车窗上的柔性显示屏上，若周围车辆为后方车辆，则将预警信息显示贴合在车尾车窗上的柔性显示屏上， 从而可警示后方车辆的驾驶员存在驾车风险。并且预警信息在柔性显示屏上的显示位置可与周围车辆在车窗上的成像显示位置相关联。从而，能够直观确定预警信息与周围车辆的关联关系。进而可使驾驶者有效规避事故风险。
可选的，若预警信息显示在车身车窗或车尾车窗上的柔性显示屏时，可将预警信息及对应的车辆成像显示在车头车窗的柔性显示屏的特定显示区域内，在警示周围车辆驾驶员的同时，也可警示本车辆驾驶员。
本发明实施例中，确定本车辆与周围车辆的相对距离以及本车辆与周围车辆的相对速度，可根据相对距离与相对速度，确定周围车辆对于本车辆形成事故风险的风险等级，并可将与该周围车辆的风险等级对应的预警信息显示在柔性显示屏上，预警信息在柔性显示屏上的显示位置能够与周围车辆在车窗上的成像位置相关联。通过上述方式，能够直观且有效的显示预警信息，进而降低事故风险。
请参阅图3，图3是本发明实施例公开的另一种车辆预警方法的流程示意图。如图3所示，该方法至少包括以下步骤。
步骤S301，确定本车辆与周围车辆的相对距离，以及本车辆与周围车辆的相对速度。
步骤S302，根据相对距离与相对速度，确定周围车辆对于本车辆形成事故风险的风险等级。
步骤S303，检测风险等级是否超过预设等级。
在一个实施例中，可检测所确定的风险等级是否超过预设等级。若风险等级未超过预设等级，则可不将风险等级对应的预警信息进行显示，或者不生成该风险等级对应的预警信息。也就是说，仅当该周围车辆的风险等级超过预设风险等级时，才在柔性显示屏上显示该风险等级对应的预警信息。例如，确定风险等级极低，或风险等级较低，则可不将上述风险等级对应的预警信息进行显示，或者不生成预警信息。具体的，风险等级可对应风险等级值，通过检测该风险等级的风险等级值是否超过预设等级阈值，来确定该风险等级是否需要生成预警信息。例如，预设等级阈值为3，则风险等级值为0、1、2、3的风险等级则可不需要生成预警信息。
步骤S304，若是，根据周围车辆的风险等级，确定与风险等级对应的预 警信息的信息内容及信息格式。
在一个实施例中，若确定周围车辆的风险等级超过预设风险等级后，可确定与该风险等级对应的预警信息的信息内容及信息格式。具体的，风险等级不同，则预警信息的信息内容及信息格式均不相同。其中，信息内容可包括文字内容或图像内容等。例如，风险等级高，则信息内容简短、颜色鲜明、显示效果强烈；风险等级低，则信息内容详细，显示效果柔和等。在此，本发明实施例不做限定。
步骤S305，根据周围车辆的位置信息，确定预警信息的显示方式。
在一个实施例中，还可根据周围车辆的位置信息，确定预警信息的显示方式。其中，位置信息包括但不限于：前方位置、后方位置或侧方位置。即周围车辆所在位置不同，其显示方式不同。例如，若周围车辆为后方车辆或侧方车辆，则预警信息的显示频率快，以能够及时引起后方车辆或侧方车辆驾驶员的注意；若周围车辆为前方车辆，则预警信息的显示频率慢，以适应本车辆驾驶员的视觉感受。
步骤S306，将预警信息的信息内容按照信息格式显示在柔性显示屏上，并按照确定的显示方式进行显示。
在一个实施例中，当确定出与风险等级对应的预警信息的信息内容及信息格式后，可将预警信息按照确定的显示方式显示在柔性显示屏上。其中，该柔性显示屏与周围车辆向关联，即若周围车辆为后方车辆，则将预警信息显示在贴合在本车辆的车尾车窗上的柔性显示屏。可选的，预警信息在柔性显示屏上的显示位置可由以下实施例所描述的方法确定。
步骤S307，若周围车辆为后方车辆或侧方车辆，输出与预警信息对应的警示音。
在一个实施例中，若周围车辆为后方车辆或侧方车辆，则预警信息显示在贴合在车尾车窗或车身车窗上的柔性显示屏，以起到提示后方车辆或侧方车辆驾驶员的效果，在显示预警信息的同时，还可输出预警信息对应的警示音，以提示本车辆驾驶员。可将预警信息对应的警示音输出至上述系统中包括的音箱装置中，或者，通过车辆预警装置内配置的音箱单元输出上述警示音。可选的，风险等级不同，预警信息不同，进而所对应的警示音不同。若风险等级高，预 警信息的显示效果强烈，且对应的警示音的音量大，音频高；若风险等级低，预警信息的显示效果柔和，且对应的警示音的音量小，音频低等。
本发明实施例中，确定本车辆与周围车辆的相对距离以及本车辆与周围车辆的相对速度，可根据相对距离与相对速度，确定周围车辆对于本车辆形成事故风险的风险等级，并可将与该周围车辆的风险等级对应的预警信息显示在柔性显示屏上，预警信息在柔性显示屏上的显示位置能够与周围车辆在车窗上的成像位置相关联。通过上述方式，能够直观且有效的显示预警信息，进而降低事故风险。
请参阅图4，图4是本发明实施例公开的又一种车辆预警方法的流程示意图。如图4所示，该方法至少包括以下步骤。
步骤S401，确定本车辆与周围车辆的距离，以及本车辆与周围车辆的相对速度。
步骤S402，根据确定的距离与相对速度，确定周围车辆对于本车辆形成事故风险的风险等级。
步骤S403，检测风险等级是否超过预设风险等级。
步骤S404，若是，采集车窗上呈现的环境成像。
在一个实施例中，若确定风险等级超过预设风险等级后，进而需要将风险等级对应的预警信息显示在贴合在车窗上的柔性显示屏。首先，可采集车窗上呈现的环境成像。具体的，可通过摄像头等设备对车窗上的环境成像进行记录，并可将其传输至车辆预警装置。
步骤S405，解析环境成像中的车辆轮廓，并根据车辆轮廓确定周围车辆在车窗上的成像范围。
在一个实施例中，可对采集到的环境成像进行解析，解析出车辆轮廓，由该车辆轮廓确定该车辆轮廓对应的周围车辆在车窗上的成像范围，即成像位置。进而，可根据该成像范围，确定预警信息的显示位置。
步骤S406，将与周围车辆的风险等级对应的预警信息通过柔性显示屏显示在成像范围内。
可选的，步骤S406可由以下步骤替代：
按照预设规则，将与周围车辆的风险等级对应的预警信息通过柔性显示屏 显示在成像范围外的预设规则规定的位置。
在一个实施例中，由可将预警信息显示在周围车辆的成像范围内，也可按照预设规则显示在周围车辆的成像范围外，例如，预设规则规定预警信息的显示位置与周围车辆的车辆轮廓之间的显示距离，则预警信息在显示距离外进行显示，可选的，可通过其他辅助显示标识确定预警信息与该周围车辆的关联关系。
步骤S407，若周围车辆为后方车辆或侧方车辆，输出与预警信息对应的警示音。
本发明实施例中，确定本车辆与周围车辆的距离以及本车辆与周围车辆的相对速度，可根据确定的距离与相对速度，确定周围车辆对于本车辆形成事故风险的风险等级，并可将与该周围车辆的风险等级对应的预警信息显示在柔性显示屏上，预警信息在柔性显示屏上的显示位置能够与周围车辆在车窗上的显示位置相关联。通过上述方式，能够直观且有效的显示预警信息，进而降低事故风险。
需要说明的是，图3所示实施例与图4所示实施例中的区别步骤可结合执行。即车辆预警装置执行图3所示实施例中的步骤确定预警信息的显示格式及显示方式，执行图4所示实施例中的步骤确定预警信息的显示位置。图3及图4中相同执行步骤的具体执行方式可参见图2所示实施例中相关步骤的具体描述，在此不再赘述。
下面结合上述方法实施例及系统实施例，对本发明实施例中的装置实施例进行详细说明。
请参阅图5，图5是本发明实施例公开的一种车辆预警装置的单元组成图。该车辆预警装置可包括第一确定单元501、第二确定单元502及显示单元503。
其中，第一确定单元501，用于确定本车辆与周围车辆的相对距离，以及本车辆与周围车辆的相对速度；
第二确定单元502，用于根据相对距离与相对速度，确定周围车辆对于本车辆形成事故风险的风险等级；
显示单元503，用于将与周围车辆的风险等级对应的预警信息显示在柔性 显示屏上，柔性显示屏贴合在车窗上，预警信息在柔性显示屏上的显示位置与周围车辆在车窗上的成像位置相关联。
可选的，第一确定单元501具体用于：
若周围车辆为前方车辆或后方车辆，识别前方车辆或后方车辆的车牌图像信息，确定本车辆与前方车辆或后方车辆的相对距离，或者，通过设置在本车辆的车头或车尾的第一距离传感器采集的距离数据确定本车辆与前方车辆或后方车辆的相对距离；
若周围车辆为侧方车辆，通过设置在本车辆的车身的第二距离传感器采集的距离数据确定本车辆与侧方车辆的相对距离。
可选的，第二确定单元502具体用于：
判断相对距离是否小于预设距离阈值；
若是，确定周围车辆对于本车辆形成事故风险的风险等级为第一风险等级；
若否，根据距离与相对速度计算出相撞时长，确定与相撞时长对应的周围车辆对于本车辆形成事故风险的风险等级。
可选的，第二确定单元502具体用于：
判断相对速度是否大于预设速度阈值；
若是，确定周围车辆对于本车辆形成事故风险的风险等级为第二风险等级；
若否，根据相对距离与相对速度计算出相撞时长，确定与相撞时长对应的周围车辆对于本车辆形成事故风险的风险等级。
可选的，装置还包括：
检测单元504，用于检测风险等级是否超过预设风险等级；
显示单元503，还用于若检测单元检测的结果为是，将与周围车辆的风险等级对应的预警信息显示在柔性显示屏上。
可选的，装置还包括：
第三确定单元505，用于根据周围车辆的风险等级，确定与风险等级对应的预警信息的信息内容及信息格式；
第四确定单元506，根据周围车辆的位置信息，确定预警信息的显示方式；
显示单元503，还用于将预警信息的信息内容按照信息格式显示在柔性显示屏上，并按照确定的显示方式进行显示。
可选的，装置还包括：
采集单元507，用于采集车窗上呈现的环境成像；
解析单元508，用于解析环境成像中的车辆轮廓，并根据车辆轮廓确定周围车辆在车窗上的成像范围；
显示单元503，还用于将与周围车辆的风险等级对应的预警信息通过柔性显示屏显示在成像范围内；或者，按照预设规则，将与周围车辆的风险等级对应的预警信息通过柔性显示屏显示在成像范围外的预设规则规定的位置。
可选的，装置还包括：
输出单元509，用于若周围车辆为后方车辆或侧方车辆，在显示单元503将与周围车辆的风险等级对应的预警信息显示在柔性显示屏上之后，输出与预警信息对应的警示音。
本发明实施例中，上述功能单元用于执行上述方法实施例中对应步骤的具体实现方法。在此不再赘述。
参照以上实施例，电子设备是以单元的形式来呈现。这里的“单元”可以指特定应用集成电路(application-specific integrated circuit，ASIC)，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。
在一个实施例中，本领域的技术人员可以想到图5所示的车辆预警装置可以采用以下图6所示的形式。
如图6所示，电子设备可以图4中的结构来实现，电子设备可包括处理器601、存储器602、通信接口603及通信总线604，处理器601、存储器602与显示屏603通过通信总线耦合；
本发明实施例中，处理器601可以是通用中央处理器(CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制以上方案程序执行的集成电路。处理器601还可用于执行图2-图4方法实施例中的方法，也可用于执行图5所示装置中功能单元的功能。
具体的，处理器601调用存储器602中存储的可执行程序代码，执行如下步骤：
确定本车辆与周围车辆的相对距离，以及本车辆与周围车辆的相对速度；
根据相对距离与相对速度，确定周围车辆对于本车辆形成事故风险的风险等级；
将与周围车辆的风险等级对应的预警信息显示在柔性显示屏上，柔性显示屏贴合在车窗上，预警信息在柔性显示屏上的显示位置与周围车辆在车窗上的成像位置相关联。
可选的，处理器601确定本车辆与周围车辆的距离的具体方式为：
若周围车辆为前方车辆或后方车辆，识别前方车辆或后方车辆的车牌图像信息，确定本车辆与前方车辆或后方车辆的相对距离，或者，通过设置在本车辆的车头或车尾的第一距离传感器采集的距离数据确定本车辆与前方车辆或后方车辆的相对距离；
若周围车辆为侧方车辆，通过设置在本车辆的车身的第二距离传感器采集的距离数据确定本车辆与侧方车辆的相对距离。
可选的，处理器601根据相对距离与相对速度，确定周围车辆对于本车辆形成事故风险的风险等级的具体方式为：
判断相对距离是否小于预设距离阈值；
若是，确定周围车辆对于本车辆形成事故风险的风险等级为第一风险等级；
若否，根据相对距离与相对速度计算出相撞时长，确定与相撞时长对应的周围车辆对于本车辆形成事故风险的风险等级。
可选的，处理器601根据相对距离与相对速度，确定周围车辆对于本车辆形成事故风险的风险等级的具体方式为：
判断相对速度是否大于预设速度阈值；
若是，确定周围车辆对于本车辆形成事故风险的风险等级为第二风险等级；
若否，根据相对距离与相对速度计算出相撞时长，确定与相撞时长对应的周围车辆对于本车辆形成事故风险的风险等级。
可选的，处理器601根据相对距离与相对速度，确定周围车辆对于本车辆形成事故风险的风险等级之后，处理器601还调用存储器602中存储的可执行程序代码，执行如下步骤：
检测风险等级是否超过预设风险等级；
将与周围车辆的风险等级对应的预警信息显示在柔性显示屏上，包括：
若是，将与周围车辆的风险等级对应的预警信息显示在柔性显示屏上。
可选的，处理器601将与周围车辆的风险等级对应的预警信息显示在柔性显示屏上之前，处理器601还调用存储器602中存储的可执行程序代码，执行如下步骤：
根据周围车辆的风险等级，确定与风险等级对应的预警信息的信息内容及信息格式；
根据周围车辆的位置信息，确定预警信息的显示方式；
将与周围车辆的风险等级对应的预警信息显示在柔性显示屏上，包括：
将预警信息的信息内容按照信息格式显示在柔性显示屏上，并按照确定的显示方式进行显示。
可选的，处理器601将与周围车辆的风险等级对应的预警信息显示在柔性显示屏上之前，处理器601还调用存储器602中存储的可执行程序代码，执行如下步骤：
采集车窗上呈现的环境成像；
解析环境成像中的车辆轮廓，并根据车辆轮廓确定周围车辆在车窗上的成像范围；
将与周围车辆的风险等级对应的预警信息显示在柔性显示屏上，包括：
将与周围车辆的风险等级对应的预警信息通过柔性显示屏显示在成像范围内；或者，
按照预设规则，将与周围车辆的风险等级对应的预警信息通过柔性显示屏显示在成像范围外的预设规则规定的位置。
可选的，若周围车辆为后方车辆或侧方车辆，处理器601将与周围车辆的风险等级对应的预警信息显示在柔性显示屏上之后，处理器601还调用存储器602中存储的可执行程序代码，执行如下步骤：
输出与预警信息对应的警示音。
通信接口603，用于与车辆预警系统中的其他装置，或者本车辆中配置的其他电子设备，或者周围车辆进行通信，该通信接口支持有线通信及无线通信，本发明实施例中通信接口可支持多种网络通信协议或标准。
存储器602可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器602可以是独立存在，通过总线与处理器601相连接。存储器602也可以和处理器601集成在一起。
本发明实施例还提供了一种计算机存储介质，用于储存为上述车辆预警装置所用的计算机软件指令，其包含用于执行上述方法实施例所涉及的计算机程序。
尽管在此结合各实施例对本发明进行了描述，然而，在实施所要求保护的本发明过程中，本领域技术人员通过查看附图、公开内容、以及所附权利要求书，可理解并实现公开实施例的其他变化。在权利要求中，“包括”(comprising)一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求中记载了某些措施，但这并不表示这些措施不能组合起来产生良好的效果。
本领域技术人员应明白，本发明的实施例可提供为方法、装置(设备)、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。计算机程序存储/分布在合适的介质中，与其它硬件一起提供或作为硬件的一部分，也可以采用其他分布形式，如通过Internet或其它有线或无线电信系统。
本发明是参照本发明实施例的方法、装置(设备)和计算机程序产品的 流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管结合具体特征及其实施例对本发明进行了描述，显而易见的，在不脱离本发明的精神和范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本发明的示例性说明，且视为已覆盖本发明范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (21)

  1. 一种车辆预警方法，其特征在于，包括：
    确定本车辆与周围车辆的相对距离，以及所述本车辆与所述周围车辆的相对速度；
    根据所述相对距离与所述相对速度，确定所述周围车辆对于所述本车辆形成事故风险的风险等级；
    将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上，所述柔性显示屏贴合在车窗上，所述预警信息在所述柔性显示屏上的显示位置与所述周围车辆在所述车窗上的成像位置相关联。
  2. 如权利要求1所述方法，其特征在于，所述确定本车辆与周围车辆的相对距离，包括：
    若所述周围车辆为前方车辆或后方车辆，识别所述前方车辆或所述后方车辆的车牌图像信息，确定所述本车辆与所述前方车辆或所述后方车辆的相对距离，或者，通过设置在所述本车辆的车头或车尾的第一距离传感器采集的距离数据确定所述本车辆与所述前方车辆或所述后方车辆的相对距离；
    若所述周围车辆为侧方车辆，通过设置在所述本车辆的车身的第二距离传感器采集的距离数据确定所述本车辆与所述侧方车辆的相对距离。
  3. 如权利要求2所述方法，其特征在于，所述根据所述相对距离与所述相对速度，确定所述周围车辆对于所述本车辆形成事故风险的风险等级，包括：
    判断所述相对距离是否小于预设距离阈值；
    若是，确定所述周围车辆对于所述本车辆形成撞车风险的风险等级为第一风险等级；
    若否，根据所述相对距离与所述相对速度计算出相撞时长，确定与所述相撞时长对应的所述周围车辆对于所述本车辆形成事故风险的风险等级。
  4. 如权利要求1所述方法，其特征在于，所述根据所述相对距离与所述相对速度，确定所述周围车辆对于所述本车辆形成事故风险的风险等级，包括：
    判断所述相对速度是否大于预设速度阈值；
    若是，确定所述周围车辆对于所述本车辆形成事故风险的风险等级为第二风险等级；
    若否，根据所述相对距离与所述相对速度计算出相撞时长，确定与所述相撞时长对应的所述周围车辆对于所述本车辆形成事故风险的风险等级。
  5. 如权利要求1-4任一项所述方法，其特征在于，所述根据所述相对距离与所述相对速度，确定所述周围车辆对于所述本车辆形成撞车风险的风险等级之后，所述方法还包括：
    检测所述风险等级是否超过预设风险等级；
    所述将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上，包括：
    若是，将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上。
  6. 如权利要求1-4任一项所述方法，其特征在于，所述将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上之前，所述方法还包括：
    根据所述周围车辆的风险等级，确定与所述风险等级对应的预警信息的信息内容及信息格式；
    根据所述周围车辆的位置信息，确定所述预警信息的显示方式；
    所述将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上，包括：
    将所述预警信息的所述信息内容按照所述信息格式显示在所述柔性显示屏上，并按照所述确定的显示方式进行显示。
  7. 如权利要求6所述方法，其特征在于，所述将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上之前，所述方法还包括：
    采集车窗上呈现的环境成像；
    解析所述环境成像中的车辆轮廓，并根据所述车辆轮廓确定所述周围车辆在所述车窗上的成像范围；
    所述将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上，包括：
    将与所述周围车辆的风险等级对应的预警信息通过所述柔性显示屏显示在所述成像范围内；或者，
    按照预设规则，将与所述周围车辆的风险等级对应的预警信息通过所述柔性显示屏显示在所述成像范围外的所述预设规则规定的位置。
  8. 一种车辆预警装置，其特征在于，包括：
    第一确定单元，用于确定本车辆与周围车辆的相对距离，以及所述本车辆与所述周围车辆的相对速度；
    第二确定单元，用于根据所述相对距离与所述相对速度，确定所述周围车辆对于所述本车辆形成事故风险的风险等级；
    显示单元，用于将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上，所述柔性显示屏贴合在车窗上，所述预警信息在所述柔性显示屏上的显示位置与所述周围车辆在所述车窗上的成像位置相关联。
  9. 如权利要求8所述装置，其特征在于，所述第一确定单元具体用于：
    若所述周围车辆为前方车辆或后方车辆，识别所述前方车辆或所述后方车辆的车牌图像信息，确定所述本车辆与所述前方车辆或所述后方车辆的相对距离，或者，通过设置在所述本车辆的车头或车尾的第一距离传感器采集的距离数据确定所述本车辆与所述前方车辆或所述后方车辆的相对距离；
    若所述周围车辆为侧方车辆，通过设置在所述本车辆的车身的第二距离传感器采集的距离数据确定所述本车辆与所述侧方车辆的相对距离。
  10. 如权利要求9所述装置，其特征在于，所述第二确定单元具体用于：
    判断所述相对距离是否小于预设距离阈值；
    若是，确定所述周围车辆对于所述本车辆形成事故风险的风险等级为第一风险等级；
    若否，根据所述相对距离与所述相对速度计算出相撞时长，确定与所述相撞时长对应的所述周围车辆对于所述本车辆形成事故风险的风险等级。
  11. 如权利要求8所述装置，其特征在于，所述第二确定单元具体用于：
    判断所述相对速度是否大于预设速度阈值；
    若是，确定所述周围车辆对于所述本车辆形成事故风险的风险等级为第二风险等级；
    若否，根据所述相对距离与所述相对速度计算出相撞时长，确定与所述相撞时长对应的所述周围车辆对于所述本车辆形成事故风险的风险等级。
  12. 如权利要求8-11任一项所述装置，其特征在于，所述装置还包括：
    检测单元，用于检测所述风险等级是否超过预设风险等级；
    所述显示单元，还用于若所述检测单元检测的结果为是，将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上。
  13. 如权利要求8-11任一项所述装置，其特征在于，所述装置还包括：
    第三确定单元，用于根据所述周围车辆的风险等级，确定与所述风险等级对应的预警信息的信息内容及信息格式；
    第四确定单元，根据所述周围车辆的位置信息，确定所述预警信息的显示方式；
    所述显示单元，还用于将所述预警信息的所述信息内容按照所述信息格式显示在所述柔性显示屏上，并按照所述确定的显示方式进行显示。
  14. 如权利要求13所述装置，其特征在于，所述装置还包括：
    采集单元，用于采集车窗上呈现的环境成像；
    解析单元，用于解析所述环境成像中的车辆轮廓，并根据所述车辆轮廓确定所述周围车辆在所述车窗上的成像范围；
    所述显示单元，还用于将与所述周围车辆的风险等级对应的预警信息通过所述柔性显示屏显示在所述成像范围内；或者，按照预设规则，将与所述周围车辆的风险等级对应的预警信息通过所述柔性显示屏显示在所述成像范围外的所述预设规则规定的位置。
  15. 一种车辆预警装置，其特征在于，包括：
    存储有可执行程序代码的存储器；
    与所述存储器耦合的处理器；
    所述处理器调用所述存储器中存储的所述可执行程序代码，执行如下步骤：
    确定本车辆与周围车辆的相对距离，以及所述本车辆与所述周围车辆的相对速度；
    根据所述相对距离与所述相对速度，确定所述周围车辆对于所述本车辆形成事故风险的风险等级；
    将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上，所述柔性显示屏贴合在车窗上，所述预警信息在所述柔性显示屏上的显示位置与所 述周围车辆在所述车窗上的成像位置相关联。
  16. 如权利要求15所述装置，其特征在于，所述处理器确定本车辆与周围车辆的相对距离的具体方式为：
    若所述周围车辆为前方车辆或后方车辆，识别所述前方车辆或所述后方车辆的车牌图像信息，确定所述本车辆与所述前方车辆或所述后方车辆的相对距离，或者，通过设置在所述本车辆的车头或车尾的第一距离传感器采集的距离数据确定所述本车辆与所述前方车辆或所述后方车辆的相对距离；
    若所述周围车辆为侧方车辆，通过设置在所述本车辆的车身的第二距离传感器采集的距离数据确定所述本车辆与所述侧方车辆的相对距离。
  17. 如权利要求16所述装置，其特征在于，所述处理器根据所述相对距离与所述相对速度，确定所述周围车辆对于所述本车辆形成事故风险的风险等级的具体方式为：
    判断所述相对距离是否小于预设距离阈值；
    若是，确定所述周围车辆对于所述本车辆形成事故风险的风险等级为第一风险等级；
    若否，根据所述相对距离与所述相对速度计算出相撞时长，确定与所述相撞时长对应的所述周围车辆对于所述本车辆形成事故风险的风险等级。
  18. 如权利要求15所述装置，其特征在于，所述处理器根据所述相对距离与所述相对速度，确定所述周围车辆对于所述本车辆形成事故风险的风险等级的具体方式为：
    判断所述相对速度是否大于预设速度阈值；
    若是，确定所述周围车辆对于所述本车辆形成事故风险的风险等级为第二风险等级；
    若否，根据所述相对距离与所述相对速度计算出相撞时长，确定与所述相撞时长对应的所述周围车辆对于所述本车辆形成事故风险的风险等级。
  19. 如权利要求15-18任一项所述装置，其特征在于，所述处理器根据所述相对距离与所述相对速度，确定所述周围车辆对于所述本车辆形成事故风险的风险等级之后，所述处理器还调用所述存储器中存储的所述可执行程序代码，执行如下步骤：
    检测所述风险等级是否超过预设风险等级；
    所述将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上，包括：
    若是，将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上。
  20. 如权利要求15-18任一项所述装置，其特征在于，所述处理器将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上之前，所述处理器还调用所述存储器中存储的所述可执行程序代码，执行如下步骤：
    根据所述周围车辆的风险等级，确定与所述风险等级对应的预警信息的信息内容及信息格式；
    根据所述周围车辆的位置信息，确定所述预警信息的显示方式；
    所述将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上，包括：
    将所述预警信息的所述信息内容按照所述信息格式显示在所述柔性显示屏上，并按照所述确定的显示方式进行显示。
  21. 如权利要求20所述装置，其特征在于，所述处理器将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上之前，所述处理器还调用所述存储器中存储的所述可执行程序代码，执行如下步骤：
    采集车窗上呈现的环境成像；
    解析所述环境成像中的车辆轮廓，并根据所述车辆轮廓确定所述周围车辆在所述车窗上的成像范围；
    所述将与所述周围车辆的风险等级对应的预警信息显示在柔性显示屏上，包括：
    将与所述周围车辆的风险等级对应的预警信息通过所述柔性显示屏显示在所述成像范围内；或者，
    按照预设规则，将与所述周围车辆的风险等级对应的预警信息通过所述柔性显示屏显示在所述成像范围外的所述预设规则规定的位置。
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