CN111251976A - Speed-limiting-based light early warning system and method and vehicle - Google Patents
Speed-limiting-based light early warning system and method and vehicle Download PDFInfo
- Publication number
- CN111251976A CN111251976A CN202010130493.6A CN202010130493A CN111251976A CN 111251976 A CN111251976 A CN 111251976A CN 202010130493 A CN202010130493 A CN 202010130493A CN 111251976 A CN111251976 A CN 111251976A
- Authority
- CN
- China
- Prior art keywords
- speed limit
- speed
- early warning
- vehicle
- limit value
- 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.)
- Granted
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
- 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
- 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
- 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 automobile active safety, and discloses a speed-limiting-based light early warning system, a speed-limiting-based light early warning method and a vehicle, wherein the system comprises a sensing system, an interactive control system and a light projection system; the sensing system is used for acquiring the speed limit value v0 of the current road in real time; the interactive control system is used for generating a speed limit early warning image based on the speed limit value v 0; and 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 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 early warning system, a speed-limiting-based light early 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 early warning system, a speed-limiting-based light early warning method and a vehicle.
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 sensing system is used for acquiring the speed limit value v0 of the current road in real time; the interactive control system is used for generating a speed limit early warning image based on the speed limit value v 0; and 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 drive according to the speed-limit value v 0.
Further, the perception system is also 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 yes, an overspeed warning image is generated, and if not, the speed limit early warning image is generated; and the light 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, a visible light camera or a near-infrared camera for detecting the speed limit value v0 of the current road; and 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 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 speed-limiting early warning image.
Furthermore, the light projection system comprises an image analysis unit, an array LED controller, an array 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 LED controller, the array LED controller responds to the driving instruction transmitted by the image analysis unit to control the on-off and the gray value of each pixel of the array LED, the array LED executes the on-off and the gray value of each pixel according to the driving instruction, and the projection module optical-mechanical system projects the on-off and the gray value of the array LED.
The vehicle light supplement device further comprises a light supplement unit, and the light supplement unit is suitable for supplementing light for irradiating the vehicle in the traveling direction when the ambient light is dark.
The invention provides a rear vehicle collision-free interactive early warning 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 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 speed limit value v0 in the step (1) is taken from a speed limit signboard or a navigation map.
The third aspect of the invention provides a vehicle, which comprises the speed-limit-based light early warning system in any one of the first aspect, and is suitable for executing the speed-limit-based light early warning method in any one of the second aspect through the speed-limit-based light early 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 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; 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 vehicle to warn the driver of the vehicle of overspeed.
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 a warning when the vehicle is overspeed, so that a driver can accurately identify the warning information and take speed limit running measures in a targeted manner, 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 yet another embodiment of the system of the present invention;
FIG. 3 is a functional block diagram of another embodiment of the system of the present invention;
FIG. 4 is a schematic view 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 speed limit warning in an embodiment of the system/method of the present invention;
FIG. 6 is a schematic diagram of a speed limit warning image or an overspeed warning image according to an embodiment of the system/method of the present invention;
FIG. 7 is a schematic view 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 LED configuration in accordance with one embodiment of the present system/method;
FIG. 9 is a light pattern of an array LED displaying a speed limit warning image or an overspeed warning image in an embodiment of the system/method of the present invention;
FIG. 10 is a flow chart of one embodiment of a method of the present invention;
FIG. 11 is a flow chart of another embodiment of the method of the present invention.
Description of the reference numerals
A light supplement unit 1; a sensing 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; an array LED 4.3; 4.3-1 of an array LED luminous surface; an array LED packaging structure 4.3.2; a projection module optical-mechanical system 4.4; 4.4-1 parts of a projection lens; a heat sink and mechanical mechanism portion 4.4-2; a projected image 5; the eye center 6 of the vehicle driver; a driving road surface 7; a vehicle windshield 8; a vehicle body 9; a speed limit signboard 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 early warning system of the present invention includes a sensing system 2, an interactive control system 3, and a light projection system 4; the sensing system 2 acquires the speed limit value v0 of the current road in real time and transmits the speed limit value v0 to the interactive control system 3; the interactive control system 3 generates a speed limit early warning image according to the speed limit value v0, and the lamplight projection system 4 projects the speed limit early warning image on the road surface in front of the vehicle to warn the driver of the vehicle to follow the speed limit value v0 for driving.
Specifically, the sensing system 2 can obtain the speed limit value v0 of the current road in real time in at least two ways, the first 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 sensing system 2. 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 3 generates a speed limit early warning image based on 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 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, when the vehicle enters another speed limit section from one speed limit section, the sensing system 2 collects the speed limit value of the new speed limit section to replace the speed limit value of the previous section, and the interactive control system 3 stores the speed limit value to replace the original speed limit value, that is, the currently stored speed limit value is always corresponding to the actual road condition.
In an embodiment of the speed-limit-based light early warning system, after an effective speed limit value v0 of a current road is obtained, the sensing system 2 further obtains the running speed v of the vehicle on the current road, the interactive control system 3 judges whether v is greater than 1.1 times of v0, if yes, an overspeed warning image is generated, and if not, the speed limit early warning image is generated; and the light projection system projects the 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 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 is bound to arouse 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 vehicle speed tends to overspeed, a deceleration measure is bound to be taken. Only one of the images is generated and projected at the same time.
The speed limit warning image may be a speed limit sign similar to a speed limit sign, which includes a specific speed limit value, as shown in fig. 6. The overspeed warning image also includes a specific speed limit value, as shown in fig. 6. That is, the speed-limit 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-limit warning image flashes dynamically at a low frequency, and the overspeed warning image flashes dynamically at a high frequency, specifically, the speed-limit warning image flashes at a frequency of 800ms, and is projected continuously 3 times (the number and frequency of continuous flashing may be changed), the overspeed warning image flashes at a frequency of 400ms, and is projected continuously 3 times (the number and frequency of continuous flashing may be changed), so as to warn the driver of the vehicle to control the vehicle speed. If the speed still exceeds the speed after the warning, the speed is detected and warned again after the interval of 10 s. Of course, other forms of differentiation may be employed. In addition, during projection, the 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 speed limit early warning image and the overspeed warning image are both really projected on the road surface and fixed in relative positions along with the lane line, just like the icons actually existing on the road surface, but not suspended in the virtual effect of the road surface or in the air, so that the speed limit 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 corresponding measures in time
As shown in fig. 2, in an embodiment of the speed-limit-based light early warning system of the present invention, the sensing system 2 includes a sensing unit 2.1 and an information collecting unit 2.2, the sensing unit 2.1 includes a camera for detecting a speed limit value v0 on a speed limit signboard, the camera may adopt a visible light camera, and for facilitating detection at night, the camera may also adopt modules 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 generates a speed limit early warning image based on the speed limit value v 0. Specifically, perception unit 2.1 can adopt the forward-looking camera module, and infrared camera module can be selected to the forward-looking camera module. The sensing unit 2.1 can detect the speed limit signboard 10 on the road, 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 the information acquisition unit 2.2 acquires the effective speed limit value from the navigation map under the condition that the sensing unit 2.1 does not detect the effective speed limit signboard. The interactive 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 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 LED controller 4.2, an array LED4.3 and a projection module optical-mechanical system 4.4, wherein the image analysis unit 4.1 is used for receiving the speed-limiting early warning image sent by the image generation unit 3.2 and analyzing the gray value of each pixel in the speed-limiting early warning image to generate a driving instruction which can be identified by the array LED controller 4.2, the array LED controller 4.2 responds to the driving instruction transmitted by the image analysis unit 4.1 to control the on-off and the gray level of each pixel of the array LED4.3, the array LED4.3 executes the on-off and the gray level of each pixel according to the driving instruction, and the projection module optical-mechanical system 4.4 projects the on-off and the bright and gray level conditions of the array LED optical-mechanical 4.3 to a road surface.
As shown in fig. 7, the hardware structure of the light projection system 4 includes a heat sink and mechanical mechanism portion 4.4-2 of the optical-mechanical projection system, a projection lens 4.4-1, and a light projection system hardware circuit board 4-1, where the light projection system hardware circuit board 4-1 is a hardware carrying unit of the image analysis unit 4.1, the array LED controller 4.2, and the power driving module; the array type LED4.3 is connected to a hardware circuit board 4-1 of the light projection system, and is an LED active light source which is arranged in an array or packaged in an array and can control independent on-off and gray scale of each pixel, as shown in FIG. 8, the array type LED4.3 comprises an array type LED light-emitting surface 4.3-1 and an array type LED packaging structure 4.3-2, as shown in FIG. 9, a speed-limiting early warning image or a light pattern of an overspeed warning image is displayed on the array type LED light-emitting surface 4.3-1. Of course, the light pattern that can be displayed is not limited to this, and the brightness, shape, and the like can be adjusted as necessary.
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 supplement unit 1, the light supplement unit 1 is connected to the sensing unit 2.1, and when the ambient light is dark, for example, at night, the light supplement unit 1 is started to perform light supplement for the vehicle traveling direction, and then the sensing unit 2.1 performs detection, so as to improve the detection accuracy of the speed-limiting signboard 10.
As shown in fig. 4, the vehicle runs on the traffic road 7, the eye center 6 of the driver of the vehicle is near the center of the traffic road 7, the windshield 8 of the vehicle represents the visual field range of the driver, the vehicle body 9 is positioned in the traffic road 7, and the roadside is provided with a speed limit signboard 10 which indicates that the speed limit value of the current road is 80 km/h. As shown in fig. 5, after the warning system is started, the obtained speed limit value is projected on a driving road surface 7 in front of the vehicle by a projection image 5, and the projection image 5 is a speed limit warning image or an overspeed warning image.
As shown in fig. 10, an embodiment of the speed-limit-based light warning method according to 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 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-limit-based light warning system, and details are not repeated here.
As shown in fig. 11, 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 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.
In the embodiment of the vehicle of the present invention, any embodiment of the speed-limit-based light early warning system of the present invention may be included, and any embodiment of the speed-limit-based light early warning method of the present invention may be executed, and the technical effects or advantages of any embodiment described above may be achieved, and will not be described herein again.
The various light types described above may have dynamic display effects such as fade-in, fade-out, flicker, slide-in and slide-out, etc., for the visual senses of soft drivers and other traffic participants.
The various light types are all really projected on the road surface, are fixed along with the relative positions of the lane lines, are just like icons which are really existing on the road surface, are not suspended in the virtual effect of the road surface or the air, and have strong driving experience and interaction experience with other traffic participants.
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-limiting-based light early warning system is characterized by comprising a perception system, an interactive control system and a light projection system;
the sensing system is used for acquiring the speed limit value v0 of the current road in real time;
the interactive control system is used for generating a speed limit early warning image based on the speed limit value v 0;
and 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 drive according to the speed-limit value v 0.
2. The speed-limiting-based light early warning system according to claim 1, wherein the perception system is further configured to obtain a driving speed v of the vehicle on the current road in real time, the interactive control system determines whether v is greater than 1.1 times of v0, if yes, an overspeed warning image is generated, and if not, the speed-limiting early warning image is generated; and the light 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, a visible light camera or a near-infrared camera for detecting the speed limit value v0 of the current road;
and 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 early warning system according to claim 1, wherein the interactive control system comprises an interactive control unit and an image generation unit;
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 speed-limiting early warning image.
5. A speed limit-based light early warning system according to claim 1, wherein the light projection system comprises an image analysis unit, an array LED controller, an array LED and a projection module opto-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 LED controller, the array LED controller responds to the driving instruction transmitted by the image analysis unit to control the on-off and the gray value of each pixel of the array LED, the array LED executes the on-off and the gray value of each pixel according to the driving instruction, and the projection module optical-mechanical system projects the on-off and the gray value of the array LED.
6. The speed-limit-based light early warning system according to any one of claims 1 to 5, further comprising a supplementary lighting unit, wherein the supplementary lighting unit is adapted to supplement lighting for the traveling direction of the vehicle when ambient light is dark.
7. A light early 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 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 early 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 early warning method according to claim 8, wherein the speed limit value v0 in the step (1) is taken from a speed limit signboard or a navigation map.
10. A vehicle comprising the speed limit-based light warning system according to any one of claims 1 to 6 and adapted to perform the speed limit-based light warning method according to 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 |
|---|---|---|---|
| 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 true CN111251976A (en) | 2020-06-09 |
| CN111251976B 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 (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004210128A (en) * | 2002-12-27 | 2004-07-29 | Ichikoh Ind Ltd | Digital lighting system for vehicle |
| US20090187307A1 (en) * | 2008-01-18 | 2009-07-23 | Denso Corporation | Display control device |
| CN102371937A (en) * | 2010-08-18 | 2012-03-14 | 通用汽车环球科技运作有限责任公司 | 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 |
| 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 |
| 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 |
| CN108688556A (en) * | 2017-04-12 | 2018-10-23 | Lg电子株式会社 | Motor-vehicle bulb |
| 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 |
| WO2018225376A1 (en) * | 2017-06-06 | 2018-12-13 | コニカミノルタ株式会社 | Illumination unit |
| US20190016252A1 (en) * | 2017-07-14 | 2019-01-17 | Stanley Electric Co., Ltd. | Lighting tool for vehicle |
| 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 |
| 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 (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004210128A (en) * | 2002-12-27 | 2004-07-29 | Ichikoh Ind Ltd | Digital lighting system for vehicle |
| US20090187307A1 (en) * | 2008-01-18 | 2009-07-23 | Denso Corporation | Display control device |
| CN102371937A (en) * | 2010-08-18 | 2012-03-14 | 通用汽车环球科技运作有限责任公司 | Motor vehicle with digital projectors |
| 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 |
| 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 |
| CN108688556A (en) * | 2017-04-12 | 2018-10-23 | Lg电子株式会社 | Motor-vehicle bulb |
| WO2018225376A1 (en) * | 2017-06-06 | 2018-12-13 | コニカミノルタ株式会社 | Illumination unit |
| 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 |
| US20190016252A1 (en) * | 2017-07-14 | 2019-01-17 | Stanley Electric Co., Ltd. | Lighting tool for vehicle |
| 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 |
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111251976B (en) | 2023-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106794792B (en) | Road surface drawing system for vehicle | |
| CN103608207B (en) | Method and display device and corresponding computer program product for the transport condition for showing vehicle | |
| US8275497B2 (en) | Method and device for assisting in driving a vehicle | |
| CN109308816B (en) | Method and device for determining road traffic risk and vehicle-mounted system | |
| US11130502B2 (en) | Method for assisting a driver with regard to traffic-situation-relevant objects and motor vehicle | |
| CN109733344B (en) | Night vehicle driving auxiliary device and method and vehicle | |
| CN109204305B (en) | Method for enriching the field of view, device for use in an observer vehicle and object, and motor vehicle | |
| US20220171590A1 (en) | Method for Operating a Driver Information System in an Ego-Vehicle and Driver Information System | |
| CN110049899A (en) | Motor vehicle with the lighting module for generating image identification | |
| 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 | |
| WO2021169475A1 (en) | Led brake light adapted for human eye characteristics | |
| JP2012221303A (en) | In-vehicle lighting device for driving support and in-vehicle driving support device and driving support system | |
| CN110758286A (en) | AR-HUD (augmented reality) -based automobile side and rear blind spot detection system and method based on head-up display | |
| KR20220112166A (en) | Rearview safety warning device of a vehicle | |
| CN111369827A (en) | Traffic safety light early warning system and method and vehicle | |
| CN111332186A (en) | Information prompting/pushing system and method based on lamplight and vehicle | |
| CN111251976B (en) | Speed-limiting-based lamplight early warning system, speed-limiting-based lamplight early warning method and vehicle | |
| CN111354208A (en) | Vehicle turning-around reminding system and method and vehicle | |
| CN116841042A (en) | Augmented reality head-up display with symbols superimposed on visually imperceptible objects | |
| US20210114461A1 (en) | Image boundary indicators for a heads up display | |
| CN104401230A (en) | Automobile speed auxiliary control system and control method thereof | |
| CN113002418A (en) | Automobile and information display method | |
| CN111354204A (en) | Speed limit-based light 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |