CN111251976B - Speed-limiting-based lamplight early warning system, speed-limiting-based lamplight early warning method and vehicle - Google Patents
Speed-limiting-based lamplight early warning system, speed-limiting-based lamplight early warning method and vehicle Download PDFInfo
- Publication number
- CN111251976B CN111251976B CN202010130493.6A CN202010130493A CN111251976B CN 111251976 B CN111251976 B CN 111251976B CN 202010130493 A CN202010130493 A CN 202010130493A CN 111251976 B CN111251976 B CN 111251976B
- Authority
- CN
- China
- Prior art keywords
- speed limit
- speed
- early warning
- limit value
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K31/18—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including a device to audibly, visibly, or otherwise signal the existence of unusual or unintended speed to the driver of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
- B60Q2400/50—Projected symbol or information, e.g. onto the road or car body
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention belongs to the field of active safety of automobiles, and discloses a lamplight early warning system and method based on speed limit and a vehicle, wherein the system comprises a sensing system, an interaction control system and a lamplight projection system; the perception system is used for acquiring the speed limit value v0 of the current road in real time; the interaction control system is used for generating a speed limit early warning image based on the speed limit value v0; the lamplight projection system is used for projecting the speed limit early warning image on the road surface in front of the vehicle so as to warn a driver of the vehicle to follow the speed limit value v0 to run. According to the invention, speed limit early warning and overspeed warning are respectively carried out through lamplight, driving compliance is effectively promoted, driving experience is improved, and driving safety is improved.
Description
Technical Field
The invention relates to a lamplight early warning system and method based on speed limit and a vehicle, and belongs to the field of active safety of automobiles.
Background
The traditional automobile signal lamp has the early warning functions of displaying the outline, braking reminding, steering reminding, reversing reminding, foggy weather warning and the like, so that the driving safety can be basically guaranteed under normal traffic conditions and weather conditions.
Vehicles traveling on a speed-limiting road segment often inadvertently experience overspeed behavior, resulting in an avoidable penalty. The reasons for unintentional overspeed are mainly that a driver does not notice the speed limit value of a road, forgets to limit the speed to run when the speed limit value is missed, and is not timely reminded after overspeed.
At present, the running speed of the vehicle is completely and freely mastered by a driver according to road conditions, and when the road conditions are good, the speed of the vehicle easily exceeds a speed limit value carelessly. However, the existing vehicles cannot early warn in advance on a road section with limited speed by an effective technical means, and also cannot warn and remind after overspeed, so that overspeed behaviors are frequent.
Disclosure of Invention
The invention aims to provide a speed-limiting-based lamplight early warning system, a speed-limiting-based lamplight early warning method and a vehicle, which are used for respectively carrying out speed-limiting early warning and overspeed warning through lamplight, so that driving compliance is effectively promoted, driving experience is improved, and driving safety is improved.
In order to achieve the above object, a first aspect of the present invention provides a speed-limiting-based light early warning system, which includes a sensing system, an interactive control system, and a light projection system; the perception system is used for acquiring the speed limit value v0 of the current road in real time; the interaction control system is used for generating a speed limit early warning image based on the speed limit value v0; the lamplight projection system is used for projecting the speed limit early warning image on the road surface in front of the vehicle so as to warn a driver of the vehicle to follow the speed limit value v0 to run.
Further, the perception system is further used for acquiring the running speed v of the vehicle on the current road in real time, the interactive control system judges whether v is greater than 1.1 times of v0, if so, an overspeed warning image is generated, and if not, the overspeed warning image is generated; the lamplight projection system projects the speed limit early warning image or the overspeed warning image on the road surface in front of the vehicle.
Further, the sensing system comprises a sensing unit and an information acquisition unit; the sensing unit comprises an infrared camera or a visible light camera or a near infrared camera for detecting the speed limit value v0 of the current road; the signal output end of the infrared camera or the visible light camera or the near infrared camera is connected to the signal input end of the information acquisition unit.
Further, the interactive control system comprises an interactive control unit and an image generation unit; 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; the image generation unit is used for generating the speed limiting early warning image.
Further, the lamplight projection system comprises an image analysis unit, an array type LED controller, an array type LED and a projection module optical-mechanical system; the image analysis unit is used for receiving the speed-limiting early warning image and analyzing the gray value of each pixel of the speed-limiting early warning image to generate a driving instruction which can be identified by the array type LED controller, the array type LED controller responds to the driving instruction transmitted by the image analysis unit to control the on-off and gray of each pixel of the array type LED, the array type LED executes the on-off and gray of each pixel according to the driving instruction, and the projection module optical-mechanical system projects the on-off and gray conditions of the array type LED.
Further, a light supplementing unit adapted to irradiate light supplementing to the traveling direction of the vehicle when the ambient light is dark is also included.
The invention provides a collision-free interactive early warning method for a rear vehicle, which comprises the following steps: (1) Judging whether to obtain an effective speed limit value v0 of the current road, if so, continuing the next step; (2) updating the current road speed limit value to the speed limit value v0; (3) And generating a speed limit early warning image based on the speed limit value v0, and projecting the speed limit early warning image on a road surface in front of the vehicle.
Further, the method further comprises the following steps: and 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 projecting the overspeed warning image on the road surface in front of the vehicle.
Further, the speed limit value v0 in the step (1) is taken from a speed limit sign or a navigation map.
The third aspect of the invention provides a vehicle, which comprises the speed-limiting-based light early warning system according to any one of the first aspect, and is suitable for executing the speed-limiting-based light early warning method according to any one of the second aspect through the speed-limiting-based light early warning system.
According to the technical scheme, in the first aspect, the speed limit value v0 of the current road is monitored in real time, a speed limit early warning image is generated based on the speed limit value v0 and projected on the road surface in front of the vehicle so as to warn a driver of the vehicle to follow the speed limit value v0 to run; in the second aspect, the current vehicle speed v is monitored in real time, and when v is greater than 1.1 times of v0, an overspeed warning image is generated and projected on the road surface in front of the driver of the vehicle to warn the driver of the vehicle that overspeed is achieved.
Therefore, the technical scheme of the invention not only can early warn the running speed of the vehicle based on the speed limit value of the current road, but also can give warning when the vehicle is overspeed, so that a driver can accurately identify the warning information and pertinently take speed-limiting running measures, the running speed of the vehicle can be standardized 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 are included to provide a further understanding of 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, without limitation, the embodiments of the invention. In the drawings:
FIG. 1 is a functional block diagram of one embodiment of a system of the present invention;
FIG. 2 is a schematic block diagram of yet another embodiment of the system of the present invention;
FIG. 3 is a schematic block diagram of another embodiment of the system of the present invention;
FIG. 4 is a schematic diagram of a driving road condition according to an embodiment of the system/method of the present invention;
FIG. 5 is a schematic diagram of a system/method for speed limit warning in accordance with one embodiment of the present invention;
FIG. 6 is a schematic diagram of a speed limit warning image or overspeed warning image in an embodiment of the system/method of the present invention;
FIG. 7 is a schematic diagram of a light projection system according to an embodiment of the system/method of the present invention;
FIG. 8 is a schematic diagram of an array of LEDs in an embodiment of the system/method of the present invention;
FIG. 9 is a light pattern diagram of an array LED display speed limit warning image or overspeed warning image in an embodiment of the system/method of the present invention;
FIG. 10 is a flow chart of an embodiment of the method of the present invention;
fig. 11 is a flow chart of a further embodiment of the method of the present invention.
Description of the reference numerals
A light supplementing unit 1; a perception system 2; a sensing unit 2.1; an information acquisition unit 2.2; an interactive control system 3; an interaction control unit 3.1; an image generation unit 3.2; a light projection system 4; a hardware circuit board 4-1; an image analysis unit 4.1; an array LED controller 4.2; array LED4.3; 4.3-1 parts of array LED luminous surfaces; 4.3.2 of array LED packaging structure; a projection module opto-mechanical system 4.4; 4.4-1 parts of projection lens; 4.4-2 parts of a radiator and a mechanical mechanism; projecting an image 5; an eye center 6 of the vehicle driver; a road surface 7; a vehicle windshield 8; a vehicle body 9; speed limit sign 10.
Detailed Description
The following describes the detailed implementation of the embodiments of the present invention with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
As shown in fig. 1, one embodiment of the speed-limiting-based light early warning system of the present invention includes a perception system 2, an interactive control system 3, and a light projection system 4; the perception system 2 acquires a speed limit value v0 of a current road in real time, and transmits the speed limit value v0 to the interaction control system 3; the interaction control system 3 generates a speed limit early warning image according to the speed limit value v0, and the light projection system 4 projects the 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 run.
Specifically, the perception system 2 can obtain the speed limit value v0 of the current road in real time in at least two ways, firstly, the speed limit signboard on the road is detected, and the speed limit value v0 is extracted 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 between the navigation equipment and the perception system 2. The first method is preferably used, and the second method is preferably used only when the first method is not available. After obtaining the effective speed limit value v0 of the current road, the speed limit early warning condition is reached, the interactive control system 3 generates a speed limit early warning image based on the speed limit value v0, and the lamplight projection system 4 projects the 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 run. The driver can see the projection image in the first time, and can certainly cause his vigilance, so as to check whether the current speed of the speedometer meets the speed limit requirement, and if overspeed tends, a deceleration measure is necessarily adopted. Therefore, on one hand, potential safety hazards caused by overspeed driving can be effectively prevented, and driving safety is improved; on the other hand, overspeed penalties can be effectively avoided.
It should be noted that, the speed limit value of the road is not constant, when the vehicle enters another speed limit section from one speed limit section, the perception system 2 will collect the new speed limit value of the speed limit section to replace the speed limit value of the previous section, and the interaction control system 3 stores the new speed limit value to replace the original speed limit value, that is, the currently stored speed limit value must be corresponding to the actual road condition.
In one embodiment of the speed-limiting-based lamplight early warning system, after obtaining an effective speed limiting value v0 of a current road, the perception system 2 further obtains the running speed v of the vehicle on the current road, the interaction control system 3 judges whether v is greater than 1.1 times of v0, if so, an overspeed warning image is generated, and if not, the speed-limiting early warning image is generated; the lamplight projection system projects the speed limit early warning image or the overspeed warning image on the road surface in front of the vehicle. After v0 of the current road section is obtained, the current speed v of the vehicle on the same road section is further obtained, when v is larger than 1.1 times of v0, an overspeed warning condition is achieved, overspeed warning images are generated and projected on the road surface in front of the vehicle to warn a driver of the vehicle that overspeed is achieved, the driver can see the projected images in the first time, and the driver can be inevitably alerted to the projection images, so that deceleration measures are taken; when v is not more than 1.1 times of v0, the overspeed warning condition is not reached, overspeed warning is not needed, and only the overspeed warning is needed, namely, a overspeed warning image is generated and projected on the road surface in front of the vehicle, so that the driver can see the projected image at the first time and can be inevitably caused to feel alert, and therefore, whether the current speed of the speedometer meets the overspeed requirement is checked, and if overspeed tendency exists, deceleration measures are inevitably taken. Only one of the images is generated and projected at a time.
The speed limit early warning image may be a speed limit sign similar to a speed limit sign board, including a specific speed limit value, as shown in fig. 6. The overspeed warning image also includes specific speed limit values, as shown in fig. 6. That is, the 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 speed-limiting early warning image is dynamically flashed at a low frequency, the overspeed warning image is dynamically flashed at a high frequency, specifically, the flicker frequency of the speed-limiting early warning image is 800ms, the continuous flicker is projected for 3 times (the number and frequency of the continuous flicker may be changed), the flicker frequency of the overspeed warning image is 400ms, the continuous high-frequency flicker is projected for 3 times (the number and frequency of the continuous flicker may be changed), and the driver of the vehicle is warned to control the vehicle speed. If overspeed is still detected after warning, detecting and warning again after an interval of 10 s. Of course, other forms of differentiation may also be employed. In addition, during projection, the speed-limiting early warning image and the overspeed warning image can be formed by arranging a plurality of graphs in a row, so that strong visual impact is provided for a driver, and the attention of the driver can be drawn.
The image can have various display effects such as dynamic fade-in, fade-out, flickering, sliding-in and sliding-out, is used for softening the visual sense of drivers and other traffic participants, has a better visual impact effect, and is easy to attach importance to vehicle drivers.
It should be noted that, the speed-limiting early warning image and the overspeed warning image are both truly projected on the road surface, and the relative positions of the following lane lines are fixed, just like the icon truly existing on the road surface, but not the virtual effect of suspending on the road surface or in the air, so that the speed-limiting early warning image and the overspeed warning image have strong driving experience sense and visual impact, and must attract the attention of a driver so as to take countermeasures in time
As shown in fig. 2, in one embodiment of the speed-limiting-based light early warning system of the present invention, the sensing system 2 includes a sensing unit 2.1 and an information acquisition unit 2.2, the sensing unit 2.1 includes a camera for detecting the upper speed limit value v0 of the road speed limit sign, the camera may use a visible light camera, and for convenience of night detection, the camera may also use a module such as an infrared camera or a near infrared camera; the information acquisition unit 2.2 acquires the speed limit value v0 and transmits the speed limit value v0 to the interactive control system 3; the interactive control system 3 comprises an interactive control unit 3.1 and an image generation unit 3.2, wherein the interactive control unit 3.1 is used for replacing and storing the currently stored speed limit value with the speed limit value v0 of the current road, and the image generation unit 3.2 is used for generating a speed limit early warning image based on the speed limit value v 0. Specifically, the sensing unit 2.1 may employ a front-view camera module, and the front-view camera module may select an infrared camera module. The sensing unit 2.1 can detect the speed limit signboard 10 on the road and recognize the speed limit value therein, and then transmit the speed limit value to the information acquisition unit 2.2. The information acquisition unit 2.2 acquires the speed limit value from the sensing unit 2.1, or in case the sensing unit 2.1 does not detect an effective speed limit sign, the information acquisition unit 2.2 acquires the effective speed limit value from the navigation map. The interaction control unit 3.1 replaces the currently stored speed limit value with the effective speed limit value sent by the information acquisition unit 2.2 so as to keep the stored speed limit value as the latest data, and the image generation unit 3.2 generates a speed limit early warning image. The light projection system 4 comprises an image analysis unit 4.1, an array type LED controller 4.2, an array type LED4.3 and a projection module optical-mechanical system 4.4, wherein the image analysis unit 4.1 is used for receiving a speed-limiting early warning image sent by the image generation unit 3.2 and analyzing gray values of pixels in the speed-limiting early warning image to generate a driving instruction which can be recognized by the array type LED controller 4.2, the array type LED controller 4.2 responds to the driving instruction transmitted by the image analysis unit 4.1 so as to control on-off and gray of each pixel of the array type LED4.3, the array type LED4.3 executes on-off and gray of each pixel according to the driving instruction, and the projection module optical-mechanical system 4.4 projects on-off and gray conditions of the array type LED4.3 onto a road surface.
As shown in fig. 7, the hardware structure of the light projection system 4 includes a radiator and mechanical mechanism part 4.4-2 of the projection optical system, a projection lens 4.4-1 and a light projection system hardware circuit board 4-1, wherein the light projection system hardware circuit board 4-1 is a hardware bearing unit of an image analysis unit 4.1, an array LED controller 4.2 and a power driving module; the array type LED4.3 is connected to a hardware circuit board 4-1 of the lamplight projection system, and is an LED active luminous source which is arranged in an array or packaged in an array and can control each pixel to be individually on or off and gray, as shown in fig. 8, the array type LED4.3 comprises an array type LED luminous surface 4.3-1 and an array type LED packaging structure 4.3-2, as shown in fig. 9, and is a light pattern diagram of a speed limiting early warning image or an overspeed warning image displayed on the array type LED luminous surface 4.3-1. Of course, the displayable light pattern is not limited to this, and the brightness, shape, and the like can be adjusted according to actual needs.
As shown in fig. 3, in an embodiment of the speed-limiting-based light early warning system of the present invention, the system further includes a light supplementing unit 1, where the light supplementing unit 1 is connected to the sensing unit 2.1, and when the ambient light is darker, for example, at night, the light supplementing unit 1 is started to supplement light to the traveling direction of the vehicle, and then the sensing unit 2.1 is used to detect the light, so as to improve the detection accuracy of the speed-limiting sign board 10.
As shown in fig. 4, the vehicle is driven on the road surface 7, the eye center 6 of the driver of the vehicle is near the center of the road surface 7, the vehicle windshield 8 represents the visual field of the driver, the vehicle body 9 is positioned in the road surface 7, and the roadside is provided with a speed limit sign 10 on which the speed limit value of the current road is marked as 80km/h. As shown in fig. 5, after the early warning system is started, the obtained speed limit value is projected onto a driving road surface 7 in front of a vehicle by using a projection image 5, and the projection image 5 is the speed limit early warning image or the overspeed warning image.
As shown in fig. 10, an embodiment of the speed-limiting-based light early 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, if so, continuing to the step S102, and if not, repeating the step; s102, updating the speed limit value of the current road to be the speed limit value v0, and continuing to step S103, wherein S103 generates a speed limit early warning image and projects the 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-limiting-based lamplight warning system, and is not repeated here.
As shown in fig. 11, in one embodiment of the speed-limiting-based light early 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, if so, continuing to the step S202, and if not, repeating the step; s202, updating the speed limit value of the current road to be the speed limit value v0, continuing to step S203, acquiring the running speed v of the vehicle on the current road in real time by S203, judging whether v is greater than 1.1 times of v0, if so, 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, generating a speed-limiting early warning image and projecting the speed-limiting 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-limiting-based lamplight warning system, and is not repeated here.
The embodiment of the vehicle of the present invention may include any embodiment of the speed-limiting-based light early warning system of the present invention, and may execute any embodiment of the speed-limiting-based light early warning method of the present invention, and have the technical effects or advantages of any embodiment of the present invention, which are not described herein.
The various light patterns described above may have dynamic display effects such as fade in, fade out, blink, slide in and out, etc., for softening the driver's visual senses as well as other traffic participants.
The various light patterns are truly projected on the road surface, and the relative positions of the following lane lines are fixed, so that the light patterns are just like icons actually existing on the road surface, but are not suspended on the road surface or in the air, and have strong driving experience and interaction experience among other traffic participants.
The foregoing details of the optional implementation of the embodiment of the present invention have been described in detail with reference to the accompanying drawings, but the embodiment of the present invention is not limited to the specific details of the foregoing implementation, and various simple modifications may be made to the technical solution of the embodiment of the present invention within the scope of the technical concept of the embodiment of the present invention, and these simple modifications all fall within the protection scope of the embodiment of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, various possible combinations of embodiments of the present invention are not described in detail.
In addition, any combination of various embodiments of the present invention may be performed, so long as the concept of the embodiments of the present invention is not violated, and the disclosure of the embodiments of the present invention should also be considered.
Claims (9)
1. The lamplight early warning system based on speed limit is characterized by comprising a sensing system, an interaction control system and a lamplight projection system;
the perception system is used for acquiring the speed limit value v0 of the current road in real time;
the interaction control system is used for generating a speed limit early warning image based on the speed limit value v0;
the light projection system is used for projecting the 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 run,
the lamplight projection system comprises an image analysis unit, an array type LED controller, an array type LED and a projection module optical-mechanical system, wherein
The image analysis unit is used for receiving the speed-limiting early-warning image and analyzing the gray value of each pixel of the speed-limiting early-warning image to generate a driving instruction which can be identified by the array type LED controller, the array type LED controller responds to the driving instruction transmitted by the image analysis unit to control the on-off and gray of each pixel of the array type LED, the array type LED executes the on-off and gray of each pixel according to the driving instruction, and the projection module optical-mechanical system projects the on-off and gray conditions of the array type LED; and
the projection module optical-mechanical system comprises a projection lens, wherein the projection lens comprises a first lens, a second lens, a third lens and a fourth lens which are sequentially arranged along a light projection direction, the protruding directions of light emitting surfaces of the first lens, the second lens and the fourth lens are along the light projection direction, the light incident surface of the third lens is protruding along the direction opposite to the light projection direction, the light emitting surface is recessed along the direction opposite to the light projection direction, and intervals are reserved between the third lens and the second lens and between the third lens, so that dynamic fade-in, fade-out, flickering, sliding-in and sliding-out display of images are executed.
2. The speed-limiting-based lamplight early warning system according to claim 1, wherein the perception system is further used for acquiring the running speed v of the vehicle on the current road in real time, the interactive control system judges whether v is greater than 1.1 times of v0, if so, an overspeed warning image is generated, and if not, the speed-limiting early warning image is generated; the lamplight projection system projects the 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 early warning system according to claim 1, wherein the sensing system comprises a sensing unit and an information acquisition unit;
the sensing unit comprises an infrared camera or a visible light camera or a near infrared camera for detecting the speed limit value v0 of the current road;
the signal output end of the infrared camera or the visible light camera or the near infrared camera is connected to the signal input end of the information acquisition unit.
4. The speed limit-based light warning system of claim 1, wherein the interactive control system comprises an interactive control unit and an image generation unit;
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;
the image generation unit is used for generating the speed limiting early warning image.
5. The speed limit based light warning system of any one of claims 1 to 4, further comprising a light supplementing unit adapted to supplement light to the direction of travel of the vehicle when ambient light is dark.
6. A speed-limiting-based light early warning method, which is characterized in that the speed-limiting-based light early warning method is realized by adopting the speed-limiting-based light early warning system according to any one of claims 1 to 5, and comprises the following steps:
(1) Judging whether to obtain an effective speed limit value v0 of the current road, if so, continuing the next step;
(2) Updating the current road speed limit value to the speed limit value v0;
(3) And generating a speed limit early warning image based on the speed limit value v0, and projecting the speed limit early warning image on a road surface in front of the vehicle.
7. The speed limit-based light warning method of claim 6, further comprising: and 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 projecting the overspeed warning image on the road surface in front of the vehicle.
8. The speed limit-based light warning method according to claim 7, wherein the speed limit value v0 in the step (1) is taken from a speed limit sign or a navigation map.
9. A vehicle comprising a speed limit based light warning system according to any one of claims 1-5 and adapted to perform the speed limit based light warning method of any one of claims 6-8 by means of the speed limit based light warning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130493.6A CN111251976B (en) | 2020-02-28 | 2020-02-28 | Speed-limiting-based lamplight early warning system, speed-limiting-based lamplight early warning method and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130493.6A CN111251976B (en) | 2020-02-28 | 2020-02-28 | Speed-limiting-based lamplight early warning system, speed-limiting-based lamplight early warning method and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111251976A CN111251976A (en) | 2020-06-09 |
| CN111251976B true CN111251976B (en) | 2023-07-07 |
Family
ID=70954820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010130493.6A Active CN111251976B (en) | 2020-02-28 | 2020-02-28 | Speed-limiting-based lamplight early warning system, speed-limiting-based lamplight early warning method and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111251976B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004210128A (en) * | 2002-12-27 | 2004-07-29 | Ichikoh Ind Ltd | Digital lighting system for vehicle |
| JP2017009778A (en) * | 2015-06-22 | 2017-01-12 | コニカミノルタ株式会社 | Illumination optical unit and illumination device |
| WO2018225376A1 (en) * | 2017-06-06 | 2018-12-13 | コニカミノルタ株式会社 | Illumination unit |
| CN209944222U (en) * | 2019-06-03 | 2020-01-14 | 曼德电子电器有限公司 | Pixel lighting device and projection imaging module |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4582151B2 (en) * | 2008-01-18 | 2010-11-17 | 株式会社デンソー | Display control device |
| DE102010034853A1 (en) * | 2010-08-18 | 2012-02-23 | Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) | Motor vehicle with digital projectors |
| 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 |
| KR101908309B1 (en) * | 2017-04-12 | 2018-10-16 | 엘지전자 주식회사 | Lamp for Vehicle |
| 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 |
| JP6975566B2 (en) * | 2017-07-14 | 2021-12-01 | スタンレー電気株式会社 | Vehicle lighting |
| CN108819830A (en) * | 2018-05-24 | 2018-11-16 | 北京经纬恒润科技有限公司 | A kind of control method, control device and the control system of intelligence headlamp |
| 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 CN202010130493.6A patent/CN111251976B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004210128A (en) * | 2002-12-27 | 2004-07-29 | Ichikoh Ind Ltd | Digital lighting system for vehicle |
| JP2017009778A (en) * | 2015-06-22 | 2017-01-12 | コニカミノルタ株式会社 | Illumination optical unit and illumination device |
| WO2018225376A1 (en) * | 2017-06-06 | 2018-12-13 | コニカミノルタ株式会社 | Illumination unit |
| CN209944222U (en) * | 2019-06-03 | 2020-01-14 | 曼德电子电器有限公司 | Pixel lighting device and projection imaging module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111251976A (en) | 2020-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103608207B (en) | Method and display device and corresponding computer program product for the transport condition for showing vehicle | |
| EP1588888B1 (en) | Display device, instrument panel and automotive vehicle | |
| RU2531790C1 (en) | Vehicle data transfer device | |
| US9688287B2 (en) | Situation awareness system and method | |
| CN109204305B (en) | Method for enriching the field of view, device for use in an observer vehicle and object, and motor vehicle | |
| CN103124943A (en) | A vehicle based display system and a method for operating the same | |
| US11130502B2 (en) | Method for assisting a driver with regard to traffic-situation-relevant objects and motor vehicle | |
| US9969266B2 (en) | Display control device, projection device, and non-transitory storage medium for vehicle speed limit notifications | |
| US10315556B2 (en) | Information providing apparatus | |
| CN111347969A (en) | Projection system and method of multimedia image and vehicle | |
| CN111332284A (en) | Vehicle collision avoidance light early warning system and method and vehicle | |
| CN117124850A (en) | Mixed augmented reality head-up display for creating an edge-to-edge augmented reality view | |
| CN111267721A (en) | LED brake lamp suitable for human eye visual characteristics | |
| US20070262971A1 (en) | Method and device for operating an optical display device | |
| US9495871B2 (en) | Display control device, display control method, non-transitory recording medium, and projection device | |
| JP2011240868A (en) | Information display device and information display method | |
| CN111251976B (en) | Speed-limiting-based lamplight early warning system, speed-limiting-based lamplight early warning method and vehicle | |
| JP5810511B2 (en) | VEHICLE DISPLAY DEVICE AND VEHICLE DISPLAY METHOD | |
| EP2221654A1 (en) | Head mounted display | |
| JP5391730B2 (en) | Display device and head-up display system | |
| CN111332186A (en) | Information prompting/pushing system and method based on lamplight and vehicle | |
| WO2021241066A1 (en) | Dimming data transmission device | |
| US11670260B2 (en) | Augmented reality system | |
| CN113002418A (en) | Automobile and information display method | |
| US20210114461A1 (en) | Image boundary indicators for a heads up display |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |