CN111354204A - Speed limit-based light warning system and method and vehicle - Google Patents
Speed limit-based light warning system and method and vehicle Download PDFInfo
- Publication number
- CN111354204A CN111354204A CN202010130531.8A CN202010130531A CN111354204A CN 111354204 A CN111354204 A CN 111354204A CN 202010130531 A CN202010130531 A CN 202010130531A CN 111354204 A CN111354204 A CN 111354204A
- Authority
- CN
- China
- Prior art keywords
- speed limit
- speed
- limit value
- warning image
- vehicle
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/09623—Systems involving the acquisition of information from passive traffic signs by means mounted on the vehicle
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B31/00—Predictive alarm systems characterised by extrapolation or other computation using updated historic data
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/12—Advertising or display means not otherwise provided for using special optical effects
- G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
Abstract
The invention belongs to the field of automobile active safety, and discloses a speed-limiting-based light warning system, a speed-limiting-based light warning method and a vehicle, wherein an interactive control system is used for acquiring a speed-limiting value v0 of a current road in real time and generating a first speed-limiting early warning image based on the speed-limiting value v 0; and the light projection system is used for projecting the first speed limit early warning image on the road surface in front of the vehicle so as to warn the driver of the vehicle to drive according to the speed limit value v 0. According to the invention, speed limit early warning and overspeed warning are respectively carried out through lamplight, so that the driving in compliance with regulations is effectively promoted, the driving experience is improved, and the driving safety is improved.
Description
Technical Field
The invention relates to a speed-limiting-based light warning system, a speed-limiting-based light warning method and a vehicle, and belongs to the field of automobile active safety.
Background
The traditional automobile signal lamp has the early warning functions of ensuring driving safety, such as outline indication, braking reminding, steering reminding, backing reminding, foggy weather warning and the like, and can basically ensure the driving safety under normal traffic conditions and weather conditions.
Vehicles traveling on speed-limited roads often inadvertently overtake the penalty that could be avoided. The reason why the vehicle is not over-speeding is mainly that the driver does not notice the speed limit value of the road, forgets to drive the vehicle at the speed limit when the vehicle is over-speeding due to the wrong speed limit value, and is not reminded in time after the vehicle is over-speeding.
At present, the driving speed of a vehicle is completely and freely mastered by a driver according to road conditions, and when the road conditions are good, the vehicle speed easily exceeds a speed limit value inadvertently. However, the existing vehicles cannot perform early warning on a road section with a limited speed by an effective technical means, and cannot perform warning and reminding after overspeed, so that overspeed behaviors are frequent.
Disclosure of Invention
The invention aims to provide a speed-limiting-based light warning system, a speed-limiting-based light warning method and a vehicle.
In order to achieve the above object, a first aspect of the present invention provides a speed limit-based light warning system, including an interactive control system and a light projection system; the interactive control system is used for acquiring the speed limit value v0 of the current road in real time and generating a first speed limit early warning image based on the speed limit value v 0; and the light projection system is used for projecting the first speed limit early warning image on the road surface in front of the vehicle so as to warn the driver of the vehicle to drive according to the speed limit value v 0.
Further, the interactive control system is further used for acquiring the running speed v of the vehicle on the current road in real time, judging whether v is greater than 1.1 times of v0, if so, generating an overspeed warning image, and if not, generating the first speed limit early warning image; and the light projection system projects the first speed limit early warning image or the overspeed warning image on the road surface in front of the vehicle.
Further, the system also comprises a lamp end execution system; the interactive control system is also used for generating a second speed limit early warning image based on the speed limit value v 0; and the lamp end execution system is used for displaying the second speed limit early warning image to the rear vehicle in a graphic and text mode so as to warn the driver of the rear vehicle to drive according to the speed limit value v 0.
Furthermore, the interactive control system comprises a sensing unit, an information acquisition unit, an interactive control unit and an image generation unit; the sensing unit is used for acquiring the speed limit value v0 of the current road in real time; the information acquisition unit is used for acquiring the speed limit value v0, or the information acquisition unit is used for acquiring the speed limit value v0 and the running speed v of the vehicle; correspondingly, the interaction control unit is used for replacing the currently stored speed limit value with the speed limit value v0 of the current road and storing the speed limit value, or the interaction control unit is used for replacing the currently stored speed limit value with the speed limit value v0 of the current road and storing the speed limit value v0 of the current road and judging whether v is larger than 1.1 times of v0 or not; correspondingly, the image generation unit is used for generating the first speed-limit early-warning image, or simultaneously generating the first speed-limit early-warning image and the second speed-limit early-warning image, or generating an overspeed warning image.
Further, the light projection system comprises a first image acquisition unit, a light source driving unit and a projection unit; the first image acquisition unit is used for receiving the first speed limit early warning image or receiving an overspeed warning image; the light source driving unit is suitable for adjusting the driving current of the projection light source according to the illumination mode fed back by the image generation unit; the projection unit is used for projecting the first speed limit early warning image or projecting the overspeed warning image.
Further, the lamp-side execution system includes: the second image acquisition unit is used for receiving the second speed limit early warning image; the pixel distribution unit is used for decomposing the second speed-limiting early warning image into the brightness value of each pixel of the signal lamp according to the pixel layout of the signal lamp; a signal lamp including a plurality of driving units and a plurality of multi-pixel light emitting element arrays; each driving unit is electrically connected to each light emitting element array in a one-to-one correspondence, and each driving unit lights each pixel of each light emitting element array based on each brightness value.
The invention provides a rear vehicle collision-free interactive reminding method in a second aspect, which comprises the following steps: (1) judging whether the effective speed limit value v0 of the current road is obtained or not, if so, continuing the next step; (2) updating the current road speed limit value to the speed limit value v 0; (3) a first speed limit warning image based on the speed limit value v0 is generated and projected onto the road surface in front of the vehicle.
Further, still include: and acquiring the running speed v of the vehicle on the current road in real time, judging whether v is more than 1.1 times of v0, if so, generating an overspeed warning image, and projecting the overspeed warning image on the road surface in front of the vehicle.
Further, the step (3) further comprises: and generating a second speed limit early warning image based on the speed limit value v0, and displaying the second speed limit early warning image in a graphic and text mode to a rear vehicle.
A third aspect of the present invention provides a vehicle, including the speed-limit-based light warning system according to any one of the first aspects, and adapted to execute the speed-limit-based light warning method according to any one of the second aspects by the speed-limit-based light warning system.
Through the technical scheme, on the first aspect, the speed limit value v0 of the current road is monitored in real time, and a first speed limit early warning image is generated based on the speed limit value v0 and is projected to the road surface in front of the vehicle so as to warn the driver of the vehicle to follow the speed limit value v0 to drive; monitoring the current vehicle speed v in real time, and when v is greater than 1.1 times of v0, generating an overspeed warning image and projecting the overspeed warning image on a road surface in front of the vehicle to warn a driver of the vehicle of overspeed; in a third aspect, a second speed limit warning image based on the speed limit value v0 is generated and displayed pictorially to the following vehicle to warn the driver of the following vehicle to follow the speed limit value v 0.
Therefore, the technical scheme of the invention can not only carry out early warning on the running speed of the vehicle based on the speed limit value of the current road, but also give warning to the rear vehicle to warn the speed limit value of the current road, and the driver can accurately identify the warning information and take speed limit running measures in a targeted manner, so that the running speed of the vehicle can be regulated within the speed limit value to the maximum extent, the running safety is ensured, and the driving experience is improved.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a functional block diagram of an embodiment of the system of the present invention;
FIG. 2 is a schematic block diagram of another embodiment of the system of the present invention;
FIG. 3 is a functional block diagram of yet another embodiment of the system of the present invention;
FIG. 4 is a schematic diagram illustrating the operation of an embodiment of the system of the present invention;
FIG. 5 is a schematic diagram of the operation of a projection unit in an embodiment of the system of the present invention;
FIG. 6 is a first schematic diagram of a first/second speed limit warning image according to an embodiment of the system/method of the present invention;
FIG. 7 is a schematic diagram of a first/second speed limit warning image in an embodiment of the system/method of the present invention;
FIG. 8 is a schematic diagram of an overspeed warning image in an embodiment of the system/method of the present invention;
FIG. 9 is a schematic diagram of a single light emitting device array according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a plurality of light emitting device array assemblies according to an embodiment of the present invention;
FIG. 11 is a flow chart of a first embodiment of the method of the present invention;
FIG. 12 is a flow chart of a second embodiment of the method of the present invention;
FIG. 13 is a flow chart of a third embodiment of the method of the present invention;
FIG. 14 is a flow chart of a fourth embodiment of the method of the present invention.
Description of the reference numerals
A projection light source 1; a first illumination optical element 2; a second illumination optical element 3; a third illumination optical element 4; a digital micromirror 5; an imaging optical system 6; a heat dissipation system 7; a display light source 8; a condenser 9; a web 10.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
As shown in FIG. 1, one embodiment of the speed limit based light warning system of the present invention includes an interactive control system and a light projection system; the interactive control system is used for acquiring the speed limit value v0 of the current road in real time and generating a first speed limit early warning image based on the speed limit value v 0; and the light projection system is used for projecting the first speed limit early warning image on the road surface in front of the vehicle so as to warn the driver of the vehicle to drive according to the speed limit value v 0.
Specifically, the interactive control system can obtain the speed limit value v0 of the current road in real time in at least two modes, wherein the first mode is to detect the speed limit signboard on the road and extract the speed limit value v0 from the speed limit signboard through image acquisition and processing; and secondly, receiving the speed limit value from the navigation map, and obtaining the speed limit value through a communication interface of the navigation equipment and the interactive control system. It should be noted that the first mode is preferentially adopted, and the second mode is adopted only when the first mode is unavailable. After the speed limit value v0 of the effective current road is obtained, the speed limit early warning condition is reached, the interactive control system generates a first speed limit early warning image based on the speed limit value v0, and the light projection system projects the first speed limit early warning image on the road surface in front of the vehicle so as to warn the driver of the vehicle to follow the speed limit value v0 to drive. The driver can see the projection image at the first time, and the driver can be alerted inevitably, so that whether the current speed of the speedometer meets the speed limit requirement is checked, and if the current speed of the speedometer is in overspeed tendency, deceleration measures are inevitably taken. Therefore, on one hand, the potential safety hazard caused by overspeed driving can be effectively prevented, and the driving safety is improved; on the other hand, overspeed punishment can be effectively avoided.
It should be noted that the speed limit value of the road is not constant, and when the vehicle enters another speed limit section from one speed limit section, the interactive control system collects the speed limit value of the new speed limit section to replace the speed limit value of the previous section and stores the speed limit value until the speed limit value is replaced by the new speed limit value, and the currently stored speed limit value is always corresponding to the actual road condition.
In an embodiment of the speed-limit-based light warning system, after obtaining an effective speed limit value v0 of a current road, the interactive control system further obtains the driving speed v of the vehicle on the current road, and judges whether v is greater than 1.1 times of v0, if yes, an overspeed warning image is generated, and if not, the first speed limit warning image is generated; and the light projection system projects the first speed limit early warning image or the overspeed warning image on the road surface in front of the vehicle. After obtaining v0 of the current road section, further obtaining the current speed v of the vehicle on the same road section, when v is more than 1.1 times of v0, reaching an overspeed warning condition, generating an overspeed warning image and projecting the overspeed warning image on the road surface in front of the vehicle to warn the driver of the vehicle that the driver has overspeed, and the driver can see the projected image at the first time and inevitably arouse the alertness of the driver, thereby taking a deceleration measure; when v is not more than 1.1 times of v0, the overspeed warning condition is not reached, overspeed warning is not needed, only speed limit warning is provided, namely a first speed limit warning image is generated and projected on the road surface in front of the vehicle, the driver can see the projected image at the first time and inevitably arouses the alertness of the driver, so that whether the current vehicle speed of the speedometer meets the speed limit requirement is checked, and if the current vehicle speed of the speedometer meets the speed limit requirement, deceleration measures are inevitably taken. Only one of the images is generated and projected at the same time.
As shown in fig. 3, in an embodiment of the speed limit-based light warning system of the present invention, a lamp-side executing system is further included; the interactive control system is also used for generating a second speed limit early warning image based on the speed limit value v 0; the lamp end execution system is used for displaying the second speed limit early warning image to the rear vehicle in a pictorially and luxuriant manner so as to warn the rear vehicle driver to drive along the speed limit value v0, so that the rear vehicle driver can timely learn the speed limit value of the current road, check the speedometer at the first time after seeing the prompt information, and timely take safety precautionary measures such as deceleration and the like if necessary, thereby greatly enhancing the driving safety and improving the active safety performance of the vehicle. Therefore, the speed-limiting early warning and overspeed warning can be carried out on the vehicle, the speed-limiting early warning can be carried out on the rear vehicle, and the driving safety is further improved.
The first speed limit warning image and the second speed limit warning image may be speed limit signs similar to the speed limit signboard, which include specific speed limit values, as shown in fig. 6 to 7. The overspeed warning image also includes a specific speed limit value, as shown in fig. 8. Of course, the first speed-limiting early warning image and the overspeed warning image may be the same, and in order to distinguish different meanings, different visual expression forms may be adopted, for example, the first speed-limiting early warning image flashes dynamically at a low frequency, the overspeed warning image flashes dynamically at a high frequency, or other distinguishing forms may also be adopted. In addition, during projection, the first speed limit early warning image and the overspeed warning image can be formed by arranging a plurality of graphs in a line, so that a strong visual impact is given to a driver, and the attention of the driver can be attracted.
The images can have various display effects of dynamic fade-in, fade-out, flicker, slide-in and slide-out and the like, are used for the visual sense of soft drivers and other traffic participants, have better visual impact effect, and are easy to attract the attention of vehicle drivers.
It should be noted that the first speed-limiting early warning image and the overspeed warning image are both truly projected on the road surface, and are fixed along with the relative position of the lane line, just like the icon actually existing on the road surface, but not the virtual effect of suspending on the road surface or in the air, so that the first speed-limiting early warning image and the overspeed warning image have strong driving experience and visual impact, and inevitably arouse the attention of the driver, so as to take measures in time.
As shown in fig. 2, in an embodiment of the speed-limit-based light warning system of the present invention, the interactive control system includes a sensing unit, an information collecting unit, an interactive control unit, and an image generating unit; the sensing unit is used for acquiring a speed limit value v0 of a road in real time; the information acquisition unit is used for acquiring the speed limit value v 0; the interactive control unit is used for replacing the currently stored speed limit value with the speed limit value v0 of the current road and storing the speed limit value v 0; the image generation unit is used for generating the first speed limit early warning image. Specifically, the perception unit can adopt a foresight camera module, and the infrared camera module can be selected by the foresight camera module. The sensing unit can detect the speed limit signboard on the road, recognize the speed limit value and transmit the speed limit value to the information acquisition unit. The information acquisition unit acquires the speed limit value from the sensing unit, or acquires the effective speed limit value from the navigation map under the condition that the sensing unit does not detect the effective speed limit signboard. The interactive control unit replaces the currently stored speed limit value with the effective speed limit value sent by the information acquisition unit to keep the stored speed limit value as the latest data, and the image generation unit generates a first speed limit early warning image or simultaneously generates a first speed limit early warning image and a second speed limit early warning image.
In an embodiment of the speed-limit-based light warning system of the invention, the information acquisition unit further acquires a driving speed v of the vehicle, and the interactive control unit is further configured to determine whether v is greater than 1.1 times v0, if so, the image generation unit generates an overspeed warning image, and if not, the image generation unit generates a first speed-limit warning image, or generates the first speed-limit warning image and a second speed-limit warning image simultaneously.
As shown in fig. 2, in one embodiment of the speed limit-based light warning system of the present invention, the light projection system includes a first image capturing unit, a light source driving unit, and a projection unit; the first image acquisition unit is used for receiving the first speed limit early warning image or receiving an overspeed warning image; the light source driving unit is suitable for adjusting the driving current of the projection light source according to the illumination mode fed back by the image generation unit; the projection unit is used for projecting the first speed limit early warning image or projecting the overspeed warning image. When the image generation unit generates a first speed-limiting early-warning image, the first image acquisition unit acquires the first speed-limiting early-warning image, and the projection unit projects the first speed-limiting early-warning image; when the image generation unit generates the overspeed warning image, the first image acquisition unit acquires the overspeed warning image, and the projection unit projects the overspeed warning image. Specifically, as shown in fig. 5, the projection unit includes a projection light source 1, a first illumination optical element 2, a second illumination optical element 3, a third illumination optical element 4, a digital micromirror 5, an imaging optical system 6, and a heat dissipation system 7, light emitted by the projection light source 1 is collimated by the first illumination optical element 2, the second illumination optical element 3, and the third illumination optical element 4 in sequence and then is incident on the digital micromirror 5, the digital micromirror 5 selectively emits light into the imaging optical system 6 according to a reminder image to be displayed, the imaging optical system 6 outputs a final image light type, and the heat generated by the system is continuously taken away by the heat dissipation system 7 in a working process, so that the high-temperature operation of the system is avoided. As shown in fig. 3, the light source driving unit is configured to control a driving current corresponding to the projection light source 1 in the current illumination mode according to different illumination modes fed back by the image generating unit, and simultaneously control the projection light source 1 to perform a matched turn-off action according to a high-speed turn-off signal fed back by the digital micromirror 5 control system. For example, when the low beam illumination mode is fed back by the image generation unit, the light source driving unit controls the driving current of the projection light source 1 to be 1.4A; when the image generation unit feeds back the high beam illumination mode, the light source driving unit controls the driving current of the projection light source 1 to be 5A. In fig. 3, a black thick line at the bottom represents a running road surface of a vehicle, a circle represents a wheel, a line connected with the wheel represents a vehicle profile, and a sensing range of a sensing unit and a projection area of a projection unit are shown, wherein the sensing range is a road surface in front of the vehicle and a certain space above the road surface, the sensing range covers the position of a speed limit signboard, and the projection area is the road surface in front of the vehicle.
In some embodiments of the speed-limit-based light warning system of the present invention, the light projection system with the projection unit as the core may be installed in a vehicle light such as a head light or a tail light of a vehicle, may be installed in both side lights of the vehicle, or may be installed on one side. Certainly, the light projection system is not limited to be arranged in front and rear lamps, and can be arranged at any position where other lamps are not arranged, and in the process of driving at night, the light projection system can provide a basic vehicle night lighting function, in addition, the ground or the wall in front of the light projection system can be used as a screen to realize the projection of characters or patterns, and when the light projection system is arranged on the side surface of a vehicle or in reflectors at two sides of the vehicle, the interaction between the vehicle and a driver or passengers in the process of getting on or off the vehicle can be further realized, so that richer driving experience is realized.
As shown in fig. 4, in an embodiment of the speed-limit-based light warning system of the present invention, the system further includes an infrared light supplement unit, the infrared light supplement unit is connected to the sensing unit, and when the ambient light is dark, for example, at night, the infrared light supplement unit is started to perform light supplement for the forward direction of the vehicle, and then the forward direction of the vehicle is detected by the sensing unit, so as to improve the detection accuracy of the speed-limit signboard.
As shown in fig. 3, in an embodiment of the speed limit-based light warning system of the present invention, a lamp-side executing system is further included; and the lamp end execution system is used for displaying the second speed limit early warning image to the rear vehicle in a graphic and text mode so as to warn the driver of the rear vehicle to drive according to the speed limit value v 0. Specifically, the lamp-side execution system includes: the second image acquisition unit is used for receiving a second speed-limiting early warning image from the interactive control system image generation unit; the pixel distribution unit is used for decomposing the second speed-limiting early warning image into the brightness value of each pixel of the signal lamp according to the pixel layout of the signal lamp; a signal lamp including a plurality of driving units and a plurality of multi-pixel light emitting element arrays; each driving unit is electrically connected to each light emitting element array in a one-to-one correspondence, and each driving unit lights each pixel of each light emitting element array based on each brightness value. In fig. 3, there are N driving units and N light emitting device arrays, where one driving unit corresponds to one light emitting device array, each driving unit has M control signal output ends, the specific value of M is the same as the number of independent light emitting units in the corresponding light emitting device array, and one control signal controls one independent light emitting unit.
Specifically, the light emitting element array includes a plurality of independent light emitting units, which are one of self-luminous LED chips, a combination of self-luminous LED chips and optical parts, and a liquid crystal display; in the combination of the self-luminous LED chip and the optical part, the illumination brightness and the illumination range of light emitted by the self-luminous LED chip are adjusted through the optical part; wherein, the optical part is one of a lens, a condenser and an inner lens. As shown in fig. 9, the light emitting element array includes 9 independent light emitting units arranged in three rows and three columns, each independent light emitting unit includes a display light source 8 and a condenser 9, the independent light emitting units are connected to form a matrix light emitting element array through a connection board 10, and the display light source 8 can select LEDs. In this embodiment, light emitted by the LED is emitted through the condenser 9, specifically, the condenser 9 includes an incident surface, a light guide pillar, a light emitting pillar, and an emitting surface, and the light emitted by the LED sequentially enters the light guide pillar and the light emitting pillar through the incident surface and is finally emitted through the emitting surface. The light emitted by the LED can be focused on a fixed area after being optically processed by the condenser 9, and sufficient brightness is provided so that a driver of a following vehicle can easily recognize the light at a longer distance. As an alternative, the condenser 9 may be replaced by a lens or an internal lens, both of which can focus the light emitted from the LED on a fixed area and provide sufficient brightness, depending on the actual use environment. The color of the light emitted by the display light source 8 can be preset or a multicolor light source can be selected, and the field control selection can be carried out according to the actual requirement.
A practical signal lamp comprises a plurality of arrays of light-emitting elements as shown in fig. 9, i.e. an array (which may be regarded as a large array) consisting of a plurality of arrays of light-emitting elements (which may be regarded as small arrays), and as shown in fig. 10, a large array consisting of four small arrays, for a total of 36 individual light-emitting units. If the large array shown in fig. 10 constitutes a complete signal light display unit and it is necessary to display the word "slow", then the following independent light emitting units in the large array are lit simultaneously (the first column on the left and the first row on the top): the display device comprises a first row, a third row, a second row, a third row, a fourth row, a sixth row, a first row, a second row, a third row, a fourth row, a fifth row, a first row, a second row, a third row, a fourth row, a sixth row, a fifth row, a second row, a third row, a fourth row, a fifth row and a sixth row.
It should be noted that the lighting form of the signal lamp is not limited, and includes, but is not limited to, flashing, animation, and still images.
As an alternative, the independent light emitting units in fig. 9 and 10 may be self-luminous LED chips or liquid crystal displays, and the control modes of the two independent light emitting units are the same as the control modes of the independent light emitting units in the form of the combination of the self-luminous LED chips and the optical components, so that the display functions are also the same, except that the brightness and the definition of the finally displayed image are different, and the description is omitted here.
As shown in fig. 11, one embodiment of the speed limit-based light warning method of the present invention includes the following steps: s101, judging whether a valid speed limit value v0 of the current road is obtained or not, if so, continuing to the step S102, and if not, repeating the step; s102, the speed limit value of the current road is updated to the speed limit value v0, the process continues to step S103, and S103 generates a first speed limit early warning image and projects the first speed limit early warning image on the road surface in front of the vehicle. The specific implementation process of the method is similar to that disclosed in the embodiment of the speed-limit-based light warning system, and details are not repeated here.
As shown in fig. 12, in an embodiment of the speed limit-based light warning method of the present invention, the method includes the following steps: s201, judging whether a valid speed limit value v0 of the current road is obtained or not, if so, continuing to the step S202, and if not, repeating the step; s202, updating the speed limit value of the current road to the speed limit value v0, continuing to step S203, obtaining the running speed v of the vehicle on the current road in real time by the S203, judging whether v is more than 1.1 times of v0, if yes, continuing to step S204, and if not, jumping to step S205; s204, generating an overspeed warning image and projecting the overspeed warning image on the road surface in front of the vehicle; s205, a first speed limit early warning image is generated and projected on the road surface in front of the vehicle. The specific implementation process of the method is similar to that disclosed in the embodiment of the speed-limit-based light warning system, and details are not repeated here.
As shown in fig. 13, in an embodiment of the speed limit-based light warning method of the present invention, the method includes the following steps: s301, judging whether a valid speed limit value v0 of the current road is obtained or not, if so, continuing to the step S302, and if not, repeating the step; s302, updating the speed limit value of the current road to the speed limit value v0, and continuing to the step S303 and the step S304; s303, generating a first speed limit early warning image and projecting the first speed limit early warning image on a road surface in front of the vehicle; s304, generating a second speed limit early warning image and displaying the second speed limit early warning image to the rear vehicle in a graphic and text mode. The specific implementation process of the method is similar to that disclosed in the embodiment of the speed-limit-based light warning system, and details are not repeated here.
As shown in fig. 14, in an embodiment of the speed limit-based light warning method of the present invention, the method includes the following steps: s401, judging whether a valid speed limit value v0 of the current road is obtained or not, if so, continuing to the step S402, and if not, repeating the step; s402, updating the speed limit value of the current road to the speed limit value v0, continuing to step S403, obtaining the running speed v of the vehicle on the current road in real time by S403, judging whether v is more than 1.1 times of v0, if yes, continuing to step S404, and if not, jumping to steps S405 and S406; s404, generating an overspeed warning image and projecting the overspeed warning image on a road surface in front of the vehicle; s405, generating a first speed limit early warning image and projecting the first speed limit early warning image on a road surface in front of the vehicle; s406, generating a second speed limit early warning image and displaying the second speed limit early warning image to the rear vehicle in a graphic and text mode. The specific implementation process of the method is similar to that disclosed in the embodiment of the speed-limit-based light warning system, and details are not repeated here.
In the embodiment of the vehicle of the present invention, any embodiment of the speed-limit-based light warning system of the present invention may be included, and any embodiment of the speed-limit-based light warning method of the present invention may be executed, and the technical effects and advantages of any embodiment described above may be achieved, and details are not repeated herein.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (10)
1. A speed limit-based light warning system is characterized by comprising an interactive control system and a light projection system;
the interactive control system is used for acquiring the speed limit value v0 of the current road in real time and generating a first speed limit early warning image based on the speed limit value v 0; and the light projection system is used for projecting the first speed limit early warning image on the road surface in front of the vehicle so as to warn the driver of the vehicle to drive according to the speed limit value v 0.
2. The speed-limiting-based light warning system according to claim 1, wherein the interactive control system is further configured to obtain a driving speed v of the vehicle on the current road in real time, and determine whether v is greater than 1.1 times v0, if so, generate an overspeed warning image, and if not, generate the first speed-limiting warning image; and the light projection system projects the first speed limit early warning image or the overspeed warning image on the road surface in front of the vehicle.
3. The speed limit-based light warning system according to claim 1 or 2, further comprising a lamp end execution system;
the interactive control system is also used for generating a second speed limit early warning image based on the speed limit value v 0; and the lamp end execution system is used for displaying the second speed limit early warning image to the rear vehicle in a graphic and text mode so as to warn the driver of the rear vehicle to drive according to the speed limit value v 0.
4. The speed limit-based light warning system according to claim 3, wherein the interactive control system comprises a sensing unit, an information acquisition unit, an interactive control unit and an image generation unit; the sensing unit is used for acquiring the speed limit value v0 of the current road in real time; the information acquisition unit is used for acquiring the speed limit value v0, or the information acquisition unit is used for acquiring the speed limit value v0 and the running speed v of the vehicle; correspondingly, the interaction control unit is used for replacing the currently stored speed limit value with the speed limit value v0 of the current road and storing the speed limit value, or the interaction control unit is used for replacing the currently stored speed limit value with the speed limit value v0 of the current road and storing the speed limit value v0 of the current road and judging whether v is larger than 1.1 times of v0 or not; correspondingly, the image generation unit is used for generating the first speed-limit early-warning image, or simultaneously generating the first speed-limit early-warning image and the second speed-limit early-warning image, or generating an overspeed warning image.
5. The speed limit-based light warning system of claim 4, wherein the light projection system comprises a first image acquisition unit, a light source driving unit and a projection unit; the first image acquisition unit is used for receiving the first speed limit early warning image or receiving an overspeed warning image; the light source driving unit is suitable for adjusting the driving current of the projection light source according to the illumination mode fed back by the image generation unit; the projection unit is used for projecting the first speed limit early warning image or projecting the overspeed warning image.
6. A speed limit based light warning system according to claim 3 wherein the lamp end actuating system includes:
the second image acquisition unit is used for receiving the second speed limit early warning image;
the pixel distribution unit is used for decomposing the second speed-limiting early warning image into the brightness value of each pixel of the signal lamp according to the pixel layout of the signal lamp;
a signal lamp including a plurality of driving units and a plurality of multi-pixel light emitting element arrays; each driving unit is electrically connected to each light emitting element array in a one-to-one correspondence, and each driving unit lights each pixel of each light emitting element array based on each brightness value.
7. A light warning method based on speed limit is characterized by comprising the following steps:
(1) judging whether the effective speed limit value v0 of the current road is obtained or not, if so, continuing the next step;
(2) updating the current road speed limit value to the speed limit value v 0;
(3) a first speed limit warning image based on the speed limit value v0 is generated and projected onto the road surface in front of the vehicle.
8. The speed limit-based light warning method according to claim 7, further comprising: and acquiring the running speed v of the vehicle on the current road in real time, judging whether v is more than 1.1 times of v0, if so, generating an overspeed warning image, and projecting the overspeed warning image on the road surface in front of the vehicle.
9. The speed limit-based light warning method according to claim 7 or 8, wherein the step (3) further comprises: and generating a second speed limit early warning image based on the speed limit value v0, and displaying the second speed limit early warning image in a graphic and text mode to a rear vehicle.
10. A vehicle comprising the speed limit-based light warning system of any one of claims 1 to 6 and adapted to perform the speed limit-based light warning method of any one of claims 7 to 9 by the speed limit-based light warning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130531.8A CN111354204A (en) | 2020-02-28 | 2020-02-28 | Speed limit-based light warning system and method and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130531.8A CN111354204A (en) | 2020-02-28 | 2020-02-28 | Speed limit-based light warning system and method and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111354204A true CN111354204A (en) | 2020-06-30 |
Family
ID=71195907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010130531.8A Pending CN111354204A (en) | 2020-02-28 | 2020-02-28 | Speed limit-based light warning system and method and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111354204A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103183032A (en) * | 2011-12-31 | 2013-07-03 | 上海汽车集团股份有限公司 | Safety accessory system and method for vehicle speed limiting |
| CN103531134A (en) * | 2013-11-01 | 2014-01-22 | 浙江农林大学 | Array light projection device with adjustable images |
| CN103956068A (en) * | 2014-04-13 | 2014-07-30 | 双鸭山市鸿丰机械制造有限公司 | Highway real-time speed limiting system in hazy weather |
| CN105572872A (en) * | 2014-10-31 | 2016-05-11 | 现代摩比斯株式会社 | Vehicle warning message display system |
| CN106023628A (en) * | 2016-07-21 | 2016-10-12 | 浙江吉利汽车研究院有限公司 | Speed-limiting auxiliary system and speed-limiting auxiliary method for vehicle |
| CN106355912A (en) * | 2015-07-13 | 2017-01-25 | 环达电脑(上海)有限公司 | Intelligent delivery device and method for road traffic information |
| CN107133568A (en) * | 2017-03-31 | 2017-09-05 | 浙江零跑科技有限公司 | A kind of speed limit prompting and hypervelocity alarm method based on vehicle-mounted forward sight camera |
| CN107331180A (en) * | 2017-08-10 | 2017-11-07 | 佛山市三水区彦海通信工程有限公司 | A kind of automobile speed limit information cuing method |
| CN206841292U (en) * | 2017-04-27 | 2018-01-05 | 河南卓安伟业智能科技有限公司 | It is a kind of closely to prevent the alarm device that knocks into the back |
| CN207360211U (en) * | 2017-06-18 | 2018-05-15 | 深圳市绎立锐光科技开发有限公司 | Automotive lighting optical projection system |
| CN209471567U (en) * | 2018-12-19 | 2019-10-08 | 深圳七千猫设计服务有限公司 | Vehicle-mounted speed limit reminding device |
| US10491870B2 (en) * | 2016-02-10 | 2019-11-26 | Ricoh Company, Ltd. | Image display apparatus and image display method |
| CN111439195A (en) * | 2019-07-15 | 2020-07-24 | 长城汽车股份有限公司 | Method for projecting pattern by using car lamp, car lamp system and car |
-
2020
- 2020-02-28 CN CN202010130531.8A patent/CN111354204A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103183032A (en) * | 2011-12-31 | 2013-07-03 | 上海汽车集团股份有限公司 | Safety accessory system and method for vehicle speed limiting |
| CN103531134A (en) * | 2013-11-01 | 2014-01-22 | 浙江农林大学 | Array light projection device with adjustable images |
| CN103956068A (en) * | 2014-04-13 | 2014-07-30 | 双鸭山市鸿丰机械制造有限公司 | Highway real-time speed limiting system in hazy weather |
| CN105572872A (en) * | 2014-10-31 | 2016-05-11 | 现代摩比斯株式会社 | Vehicle warning message display system |
| CN106355912A (en) * | 2015-07-13 | 2017-01-25 | 环达电脑(上海)有限公司 | Intelligent delivery device and method for road traffic information |
| US10491870B2 (en) * | 2016-02-10 | 2019-11-26 | Ricoh Company, Ltd. | Image display apparatus and image display method |
| CN106023628A (en) * | 2016-07-21 | 2016-10-12 | 浙江吉利汽车研究院有限公司 | Speed-limiting auxiliary system and speed-limiting auxiliary method for vehicle |
| CN107133568A (en) * | 2017-03-31 | 2017-09-05 | 浙江零跑科技有限公司 | A kind of speed limit prompting and hypervelocity alarm method based on vehicle-mounted forward sight camera |
| CN206841292U (en) * | 2017-04-27 | 2018-01-05 | 河南卓安伟业智能科技有限公司 | It is a kind of closely to prevent the alarm device that knocks into the back |
| CN207360211U (en) * | 2017-06-18 | 2018-05-15 | 深圳市绎立锐光科技开发有限公司 | Automotive lighting optical projection system |
| CN107331180A (en) * | 2017-08-10 | 2017-11-07 | 佛山市三水区彦海通信工程有限公司 | A kind of automobile speed limit information cuing method |
| CN209471567U (en) * | 2018-12-19 | 2019-10-08 | 深圳七千猫设计服务有限公司 | Vehicle-mounted speed limit reminding device |
| CN111439195A (en) * | 2019-07-15 | 2020-07-24 | 长城汽车股份有限公司 | Method for projecting pattern by using car lamp, car lamp system and car |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7302063B2 (en) | Image projection device and image projection method | |
| EP1870274B1 (en) | Display device, instrument panel, automotive vehicle and method for controlling instrument panel | |
| KR102277248B1 (en) | Controls and lighting systems | |
| CN115303172A (en) | Lighting system for a motor vehicle | |
| DE102016001692B4 (en) | Driver assistance system for controlling light emission from a vehicle headlight device | |
| CN1886639A (en) | Method and system for supporting path control | |
| JP2010072365A (en) | Head up display | |
| CN111347969A (en) | Projection system and method of multimedia image and vehicle | |
| CN101301857A (en) | Display device, instrument panel, automatic vehicle and method for controlling instrument panel | |
| US10315556B2 (en) | Information providing apparatus | |
| EP3848245A1 (en) | Vehicle display system, vehicle system, and vehicle | |
| CN111251985A (en) | Rear vehicle high beam closing reminding system and method and vehicle | |
| CN111332284A (en) | Vehicle collision avoidance light early warning system and method and vehicle | |
| JP2012221303A (en) | In-vehicle lighting device for driving support and in-vehicle driving support device and driving support system | |
| CN111347966A (en) | Signal display system and method and vehicle | |
| CN111369827A (en) | Traffic safety light early warning system and method and vehicle | |
| CN111354204A (en) | Speed limit-based light warning system and method and vehicle | |
| CN111976589A (en) | Automobile display system and automobile tail lamp system | |
| CN204077387U (en) | For showing the display system of information and comprising the vehicle of this display system | |
| CN110662671B (en) | Display device for vehicle, control method for display device for vehicle, program, and computer-readable storage medium | |
| CN111354208A (en) | Vehicle turning-around reminding system and method and vehicle | |
| CN111251976B (en) | Speed-limiting-based lamplight early warning system, speed-limiting-based lamplight early warning method and vehicle | |
| CN113002418A (en) | Automobile and information display method | |
| CN111251983A (en) | Road condition prompting system and method and vehicle | |
| CN111402628A (en) | Interlinking collision prevention interactive early warning system and method and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200630 |