CN101840633B - Lane Departure Warning with Linked GPS - Google Patents

Abstract

The invention relates to a lane departure warning device connected with a global positioning system, which reads road images through a photographic lens and then transmits the road images to an electronic control unit to process image identification work, and directly connects and utilizes a vehicle speed signal provided by the global positioning system to judge whether the vehicle is dangerous driving behavior, if so, the vehicle speed signal transmits a signal to a warning unit such as a visual warning unit and/or an auditory warning unit and/or a vibration warning unit to send out auditory and/or visual and/or vibration warning so as to achieve the lane departure warning effect; the vehicle speed signal provided by the global positioning system is connected and utilized to replace the mode of connecting and utilizing the vehicle body signal in the prior art, and the installation operation procedure used for arranging the lane departure warning device on the vehicle is greatly simplified, so the convenience and the use efficiency of installing the lane departure warning device can be improved, the acceptance of consumers can be improved, and the popularization of the lane departure warning device is facilitated.

Description

Lane Departure Warning with Linked GPS

technical field

The invention relates to a lane departure warning device, especially a lane departure warning device which is connected with a global positioning system (GPS) and can directly use the vehicle speed signal provided by the global positioning system to achieve the lane departure warning function.

Background technique

Cars are a popular means of transportation. In recent years, various electronic equipments are often installed according to the needs of users (drivers), such as global positioning system (global positioning system, GPS), lane departure warning system (Lane Departure Warning System, LDWS), driving recorder (Event DataRecorder, EDR) etc., wherein, global positioning system (GPS) is to utilize a GPS receiver such as the global positioning system with C/A code WGS-84 ellipsoidal coordinate system to receive the satellite of GPS The vehicle positioning data in the signal can cooperate with the preset electronic map (e-map) and display screen to provide the current area, position, orientation and speed of the vehicle, so that the driver can keep track of the driving trend at any time; due to global positioning The system (GPS) is already a mature product, so its detailed structure and usage functions will not be described in detail here.

The existing Lane Departure Warning System (LDWS) mainly uses a camera/image sensor installed in the car and faces the front of the car to read the road image in front of the car. It reads the white lane line images on both sides of the lane, and can set the starting point of the lane, the disappearing point of the lane, and the sensitivity of the vehicle's left and right deviation as identification parameters during installation; then input the read images into the In the electronic control unit (ECU, electronic control unit) provided by the lane departure warning system (LDWS), the electronic control unit (ECU) mainly includes a digital signal processor (digital signal processor, DSP) and cooperates with a memory unit ( memory unit) such as random access memory (random access memory, RAM) to process image recognition work; the electronic control unit (ECU) is then connected to the left and right direction lights of the car or the speedometer to obtain and use the car body signal , to judge whether it is a dangerous driving behavior, for example: the speed of the vehicle is more than 60 kilometers per hour on the expressway, and it is known from the vehicle body signal that the driver has not manipulated the left and right turn lights (did not change the lane), but if the lane deviates The warning system (LDWS) recognizes that the direction of the vehicle is in the state of pressing or snaking relative to the lane lines, that is, it is not driving stably between the two lane lines; if the identification result is yes, it will transmit a signal to the warning unit (warning unit ) such as the visual warning unit (visual warning unit) and/or the auditory warning unit (audible warning unit) are activated to warn the driver to achieve the function of the lane departure warning system (LDWS).

However, so far, the electronic control unit (ECU) of the existing lane departure warning system (LDWS) is connected to the steering wheel or the left and right direction lights or the speedometer by wires to obtain vehicle body signals such as left and right direction lights or vehicle speed. etc., to be combined with the image of the lane line for identification and judgment, so that the existing circuits and equipment of the car will be used when installing the Lane Departure Warning System (LDWS), which is relatively easy to cause changes in the interior equipment and appearance of the car; and because There are many types of vehicles in each factory, and the equipment of each type of vehicle may also be different, so it is relatively more difficult to connect the car body signal; especially consumers generally do not like to change or affect the interior of the original car in order to install electronic equipment Equipment and appearance, so the willingness to install the lane departure warning device is relatively reduced, which is not conducive to the popularization and use efficiency of the lane departure warning device; moreover, the interior space of the car is limited, and the global positioning system (GPS) has been used by most cars. Adopted, but it is separate from the Lane Departure Warning System (LDWS) and must be installed separately, which not only easily causes inconvenience in installation, but also cannot be used in combination, and relatively increases the manufacturing cost and installation cost, becoming an additional installation in the car The failure of the electronic equipment also relatively affects the use efficiency of the electronic equipment.

It can be seen from the above how to design a lane departure warning device that can be easily installed on the car by consumers, especially it can replace the existing technology that needs to be connected to the vehicle body signals such as left and right direction lights or vehicle speed, so as to enhance the installation of lane departure warning. There is an urgent need to improve the convenience and efficiency of use of the device and to improve the acceptance of consumers, and the present invention is designed to meet this need.

Contents of the invention

The main purpose of the present invention is to provide a lane departure warning device connected to the global positioning system, which can replace the installation methods of the prior art that must be connected to vehicle body signals such as left and right direction lights or vehicle speed, and the convenience and convenience of installing the lane departure warning device Use efficiency.

In order to achieve the above object, the present invention provides a lane departure warning device connected to a global positioning system (GPS), which includes a camera, an electronic control unit (ECU) for processing identification and a warning unit, Wherein the electronic control unit (ECU) is also connected with a global positioning system (GPS); when in use, the road image such as the lane line image is read through a photographic lens (camera) and transmitted to the electronic control unit (ECU), and the The above-mentioned electronic control unit (ECU) further obtains the vehicle speed signal through the global positioning system (GPS), which is used in combination with the road image for processing, identifying and judging whether it is a dangerous driving behavior, and if so, it issues a warning such as audio and/or visual and/or Vibration warning to achieve lane departure warning function; among them, the vehicle speed signal is obtained by connecting to the global positioning system (GPS), which is used to replace the existing technology of connecting and using the vehicle body signal, which can greatly simplify the use of the lane departure warning device on the car The installation procedure of the existing technology avoids the complicated procedures and shortcomings of connecting the vehicle body signals such as the left and right direction lights or the speed of the vehicle, so as to improve the convenience and efficiency of installing the lane departure warning device, and improve the acceptance of consumers It is conducive to the popularization of lane departure warning devices.

Another object of the present invention is to provide a lane departure warning device connected to a global positioning system (GPS), wherein the lane departure warning device can be packaged into a specific shape such as being packaged in an outer shell to form a body for installation in a vehicle Appropriate position, such as being fixed on the windshield or the instrument panel by a suction cup and a bracket; and wherein the photographic lens (camera) can be selected to be directly arranged on the outer shell of the lane departure warning device so as to be compatible with the lane departure warning device Combined into one body, or choose to form a single body and connect it with the lane departure warning device by a conductive line, such as setting a camera connection port on the outer shell of the lane departure warning device for the camera lens (camera) The conductive wires are plugged in to meet or improve the requirements or convenience of the lane departure warning device of the present invention in terms of manufacture, assembly and installation.

Another object of the present invention is to provide a lane departure warning device connected to a global positioning system (GPS), wherein the global positioning system can be selected to be directly arranged on the outer shell of the lane departure warning device so as to be compatible with the lane departure warning device. Combined into one body, or choose to form a single body and then connect with the lane departure warning device by the wire, such as setting a global positioning system connection port on the outer shell of the lane departure warning device for the wire insertion of the global positioning system Then, to meet or enhance the convenience or requirements of the lane departure warning device of the present invention in terms of manufacture, assembly and installation.

Another object of the present invention is to provide a lane departure warning device connected to the Global Positioning System (GPS), which can further be provided with a display screen such as a liquid crystal panel (LCD panel) on the outer shell of the lane departure warning device to display the camera lens The road images read by (camera) such as lane line images can be used for installation by adjusting the shooting orientation of the camera lens (camera) by the display screen to read the best road images for identification, so as to improve the installation and use of the lanes of the present invention Convenience of deviating from the siren.

Another object of the present invention is to provide a lane departure warning device connected to a global positioning system (GPS), which can further be provided with a composite TV broadcast signal connection port (CVBS output, Composite Video Broadcast) on the outer shell of the lane departure warning device Signal), for other external display screens, such as larger-sized LCD panels (LCD panels) or projection display devices such as head-up displays (Head-Up-Display, HUD), for the user to plug in through the external The display screen or the head-up display (HUD) to watch and display the enlarged image of the road image read by the camera, such as the lane line image.

Another object of the present invention is to provide a lane departure warning device connected to a global positioning system (GPS), wherein said electronic control unit (ECU) mainly includes a digital signal processor (digital signal processor, DSP) and cooperates with a memory unit (memory unit) to process image recognition work, wherein the digital signal processor (DSP) can choose to use an integrated integrated circuit (IC) to achieve image recognition function, or choose to use a video input (video input), a A separate integrated circuit (IC) such as a digital signal processing core (DSPcore), a control unit (control unit) and a memory (Read-Only Memory, ROM) is formed to achieve the image recognition function, thereby enhancing the lane departure warning device of the present invention Ease of manufacture and assembly.

Another object of the present invention is to provide a lane departure warning device connected to a global positioning system (GPS), wherein the memory unit (memory unit) is formed by a random access memory (Random Access Memory, RAM), and the The random access memory (RAM) can further choose to use a second-generation double data rate synchronous dynamic random access memory (Double-Data-Rate Synchronous Dynamic Random Access Memory, DDR2SDRAM), thereby increasing the speed of processing image recognition work; and Further, you can choose to add a programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM) to increase the speed of processing image recognition work, and/or a flash memory (Flash) to replace the digital signal processor (DSP) The memory (Read-Only Memory, ROM) used is to meet or improve the convenience or requirements of the lane departure warning device of the present invention in terms of manufacture, assembly and installation.

The beneficial effects of the present invention are: by connecting the global positioning system (GPS) to obtain the vehicle speed signal, it is used to replace the existing technology of connecting and utilizing the vehicle body signal, which can greatly simplify the installation procedure for installing the lane departure warning device on the vehicle , and avoid the complex procedures and shortcomings of the existing technology that need to connect the vehicle body signals such as left and right direction lights or vehicle speed, so as to improve the convenience and efficiency of installing the lane departure warning device, and improve the acceptance of consumers, which is beneficial to the lane Popularization of deviation warning devices.

Description of drawings

FIG. 1 is a schematic block diagram of the functional structure of an embodiment of the present invention (the digital signal processor DSP selects an integrated integrated circuit).

FIG. 2 is a structural block diagram of another embodiment of the present invention (the digital signal processor DSP chooses to use an unintegrated integrated circuit).

FIG. 3 is a structural block schematic diagram of another embodiment of the present invention (with an external camera lens and a global positioning system (GPS)).

FIG. 4 is a perspective view of the appearance (upper perspective) of an embodiment of the present invention (with an external camera lens and a global positioning system (GPS)) combined with a stand.

FIG. 5 is a perspective view of the appearance (bottom view) of the embodiment in FIG. 4 .

Fig. 6 is a schematic perspective view of the separated appearance of the bracket of the embodiment in Fig. 4 .

FIG. 7 is an exploded perspective view of the embodiment in FIG. 4 .

Fig. 8 is a schematic flowchart of a usage state of the present invention.

Explanation of reference numerals: 1-lane departure warning device; 10-camera; 11-wire; 20-electronic control unit (ECU); 21-image decoder (video decoder); 22-digital signal processor (DSP); 221-image input (video input); 222-digital signal processing core (DSP core); 223-control unit (control unit); 224-memory (ROM); 23-memory unit (memoryunit); 231- Double data rate synchronous dynamic random access memory (DDR2SDRAM); 232-programmable read-only memory (EEPROM); 233-flash memory (Flash); 30-warning unit (warning unit); 31-auditory warning unit (audible warning unit); 32-visual warning unit (visual warning unit); 33-vibrating warning unit (vibrating warning unit); 40-global positioning system (GPS); 41-wire; 50-concrete shape; 501-photographic lens connection port ;502-GPS connection port; 503-CVBS output connection port; 504-power connection port; 505-speaker hole; 506-LED warning light; 507-function key; 508- LCD panel switch key (LCDON/OFF); 509-speaker volume selection key; 51-outer cover; 52-LCD panel (LCD panel); 53-LCD panel circuit board (LCD-PCB); 54-main circuit board (main PCB); 60-bracket; 70-display screen; 80-(CVBS) display screen.

Detailed ways

In order to make the present invention more definite and detailed, now enumerate the preferred embodiment of the present invention and cooperate with following illustration, the structure of the present invention and technical characteristic thereof are described in detail as follows:

The following disclosed embodiments of the present invention are mainly aimed at the main components of a Lane Departure Warning (LDWS) connected and coordinated with the Global Positioning System (GPS) and the main functions used in combination, and are not used to limit the lane departure therein Other internal components or structural functions of the warning system (LDWS) or the global positioning system (GPS), that is, the relevant components or structural functions of the lane departure warning system (LDWS) or the global positioning system (GPS) can undergo many changes, Modifications, or even equivalent changes, such as: there are no restrictions on the structural type and number of installations of the camera/image sensor and/or sound reading device (such as the microphone Mic) used in the Lane Departure Warning System (LDWS); Or the image sensor of the photographic lens (camera) can be a CMOS (Complementary Metal-Oxide-Semiconductor, Complementary Metal Oxide Semiconductor) camera or a high-quality CCD (Charge Coupled Device, photoelectrically coupled audio-visual sensing element) camera; or The electronic control unit (ECU) used to process the image recognition work is not limited in terms of structure or function, for example, it can be designed to connect with various other related monitoring equipment such as small image sensors or voice sensors (such as small Microphone), rearview mirror display, car display, speaker, remote control, etc.; therefore, those who are generally familiar with this art understand that the components of the driving recorder with the function of the lane departure warning system disclosed by the present invention are not limited to the following Disclosed embodiment structure.

Please refer to FIG. 1 , which is a functional block diagram of a system according to an embodiment of the present invention. The lane departure warning device 1 used in connection with the global positioning system (GPS) of the present invention is installed on the vehicle for use, and it mainly includes a photographic lens (camera) 10, an electronic control unit (electronic control unit, ECU) 20 and at least one warning Unit (warning unit) 30 such as auditory warning unit (visual warning unit) 31 and/or visual warning unit (audible warning unit) 32 and/or vibration warning unit (viratingwarming) 33, wherein said electronic control unit (ECU) 20 and Further be connected with a global positioning system (GPS) 40, so that the vehicle speed signal of the car can be obtained through the global positioning system (GPS) 40; , and transmitted to the electronic control unit (ECU) 20 to process the image recognition work, and the electronic control unit (ECU) 20 is further connected to a global positioning system (GPS) 40 to obtain the vehicle speed signal at that time, for use in combination with the road image It can be processed by the electronic control unit (ECU) 20 to identify and judge whether it is a dangerous driving behavior. For example, when the car is driving on the highway at a speed of more than 60 kilometers per hour, it can be obtained through the global positioning system (GPS) 40 at this time. At that time, the vehicle speed is more than 60 kilometers per hour, and the signal is input into the electronic control unit (ECU) 20 as the benchmark for the activation of the lane departure warning system (LDWS) 1, that is, the lane departure warning system (LDWS) 1 can be preset. When the vehicle speed reaches a certain speed per hour, such as 60 kilometers per hour, the system function is activated, and since this setting function can be completed by the electronic control unit (ECU) 20, it will not be described in detail here; When the departure warning system (LDWS) 1 recognizes the road image read by the camera lens 10, such as the lane line image of the expressway, when the driving direction is in a pressure line or meandering state relative to the lane line, that is, the car is not stable in the two lanes. If it is judged as dangerous driving by driving between the lines, the electronic control unit (ECU) 20 will transmit a signal to a warning unit (warning unit) 30 such as an auditory warning unit (audible warning unit) 31 and/or a visual warning unit (visual warning unit) 32 and/or a vibrating warning unit (vibrating warning unit) 33 to issue a warning signal to warn the driver to achieve the function of the lane departure warning system (LDWS).

The main features of the present invention are: the lane departure warning device 1 used in connection with the Global Positioning System (GPS) of the present invention obtains the vehicle speed signal by connecting the Global Positioning System (GPS) 40, to replace the prior art that must be directly connected to the vehicle hardware structure to obtain the trouble of the vehicle body signal, as in the prior art, it must be connected to the steering wheel or the left and right direction lights or the speedometer by the wire to obtain the vehicle body signal such as the left and right direction lights or the speed of the vehicle, so the present invention can be greatly simplified on the car Setting up and using the installation procedure of the Lane Departure Warning System (LDWS) can improve the convenience and efficiency of installing the Lane Departure Warning System, and improve the acceptance of consumers and the popularization of the Lane Departure Warning System, which is beneficial to the driving of the car, especially Safety on the highway.

The lane departure warning device 1 used in connection with the global positioning system (GPS) of the present invention can be packaged into a specific shape 50 as shown in Figure 4-Figure 6, for installation in a suitable position in the car, as using an adjustable angle (such as Up and down angle) and direction (such as left and right direction) bracket 60 as shown in Figure 4-Figure 6, in order to simply paste and fix the lane departure warning device 1 on the windshield (windshield) or instrument panel for use.

The image sensing method of the camera 10 used by the lane departure warning device 1 used in connection with the global positioning system (GPS) is not limited, it can be a CMOS (Complementary Metal-Oxide-Semiconductor, Complementary Metal-Oxide Semiconductor) camera Or a high-quality CCD (Charge Coupled Device, photoelectric coupling sensing element) camera; and the arrangement between the photographic lens (camera) 10 and the specific shape 50 of the lane departure warning device 1 is not limited, and can be manufactured and assembled Or installation needs or convenience to change the design, such as the photographic lens (camera) 10 can be directly arranged on the specific shape 50 of the lane departure warning device 1 to be used in combination with the lane departure warning device 1 as shown in the figure 1, or choose to form a single specific shape as shown in Figure 3 and Figure 4, and connect with the specific shape 50 of the lane departure warning device 1 by the conductive wire 11, such as the specific shape 50 shell of the lane departure warning device A photographic lens (camera) connection port 501 is provided on the top for plugging in of the conducting wire 11 of the photographic lens (camera) 10, while the photographic lens (camera) 10 can be pasted and fixed on the windshield (windshield) in addition for use, by In order to meet and improve the requirements or convenience of the lane departure warning device of the present invention in terms of manufacture, assembly and installation.

The arrangement mode between the global positioning system (GPS) 40 used by the lane departure warning device 1 used in connection with the global positioning system (GPS) of the present invention and the specific shape 50 of the lane departure warning device 1 is not limited, and can be manufactured and assembled. Or installation needs or convenience to change the design, such as the global positioning system (GPS) 40 can be selected directly on the specific shape 50 of the lane departure warning device 1 to be used in conjunction with the lane departure warning device 1 as a whole As shown in Fig. 1, or alternatively form a single specific shape as shown in Fig. 3, 4, and connect with the specific shape 50 of the lane departure warning device 1 by the conducting wire 41, as in the specific shape body 50 shell of the lane departure warning device A Global Positioning System (GPS) connection port 502 is set on the top for the lead wire 41 plugging of the Global Positioning System (GPS) 40; and the specific shape of the Global Positioning System (GPS) 40 can be pasted and fixed on the windshield (windshield) in addition. Glass) to face the sky to meet or enhance the requirements or convenience of the lane departure warning device of the present invention in terms of manufacture, assembly and installation.

The lane departure warning device 1 used in connection with the global positioning system (GPS) of the present invention can be further provided with a display screen 70 as shown in FIGS. Facing the interior of the car) a display screen 70 is set such as a liquid crystal panel (LCD panel) as shown in Figure 1, Figure 4, and Figure 5, for displaying the road image read by the photographic lens (camera) 10, such as the lane line image, so that During installation, the display screen 70 can be used to adjust the shooting orientation of the camera 10 to read the best road image for identification, and to improve the convenience of installing and using the lane departure warning device 1 of the present invention.

The lane departure warning device 1 used in connection with the Global Positioning System (GPS) of the present invention can further cooperate to set an external display screen (CVBS output) 80 that can accept a composite TV broadcast signal (CVBS, Composite Video Broadcast Signal) as shown in the figure 1-shown in Figure 3, if a composite TV broadcast signal (Composite Video Broadcast Signal, CVBS) connection port 503 is set on the specific body 50 of the lane departure warning device, as shown in Figure 4 and Figure 5, it can be connected by a lead wire and a An external display screen 80 is connected, such as a larger-sized liquid crystal panel (LCD panel) or a projection display device such as a head-up display (Head-Up-Display, HUD), for the user to use the external display screen or head-up display ( HUD) (not shown) to view and display the enlarged image or related data of the road image such as the lane line image read by the camera 10 .

Referring again to Fig. 1-shown in Fig. 3, the lane departure warning device 1 that connects global positioning system (GPS) of the present invention to use, wherein said electronic control unit (ECU) 20 mainly comprises an image decoder (videodecoder) 21 such as model ADV7180 image decoder, a digital signal processor (digital signal processor, DSP) 22 and a memory unit (memory unit) 23 are in order to cooperate with processing image identification work; Described digital signal processor (DSP) 22 can select to utilize an integrated integration The circuit (IC) is composed as shown in Figure 1 to achieve the image recognition function, or choose to use a video input (video input) 221, a digital signal processing core (DSP core) 222 such as model TMS320DM6437, a control unit (control unit) 223 Separate integrated circuits (IC) such as model PIC18F2520 and a memory (ROM, Read-Only Memory) 224 constitute as shown in Figure 2, to achieve the image recognition function, thereby improving the lane departure warning device of the present invention in manufacturing and assembling convenience. Those who are generally familiar with the art understand that the structures of the embodiments disclosed above are not intended to limit the structure of the digital signal processor (DSP) 22 used in the present invention.

The memory unit (memory unit) 23 in the electronic control unit (ECU) 20 used in the present invention is to utilize a random access memory (Random Access Memory, RAM) to form, and described random access memory (RAM) 23 can further be Choose to utilize a second-generation double-data-rate synchronous dynamic random access memory (Double-Data-Rate Synchronous Dynamic Random Access Memory, DDR2SDRAM) 231, as shown in Figure 1-3, by increasing the speed of processing image recognition work; and The memory unit (memory unit) 23 can further choose to add a programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM) 232 and/or a flash memory (Flash) 233 to improve the performance of image recognition work Speed as shown in Figure 2, wherein when setting flash memory (Flash) 233, can replace the memory (Read-Only Memory, ROM) 224 utilized in digital signal processor (DSP) 22; Departure alarms can meet and enhance needs and convenience in terms of manufacture, assembly and installation. Those who are generally familiar with the art understand that the structure of the embodiments disclosed above is not intended to limit the structure of the memory unit (memory unit) 23 used in the present invention.

Referring to Fig. 4-7, it is the embodiment that the present invention is provided with externally connected photographic lens 10 and global positioning system (GPS) 40 and is combined with bracket 60 the appearance three-dimensional upper angle of view, the schematic view of bottom angle of view, separate from the bracket and Three-dimensional exploded schematic diagram; the lane departure warning device 1 used in connection with the global positioning system (GPS) of the present embodiment is packaged into a specific shape 50, and can be used in conjunction with an adjustable angle (such as up and down angle) and direction (such as left in the direction) The bracket 60 is fixed on the windshield (windshield) or the instrument panel with simple and easy paste, and the specific shape 50 of the lane departure warning device 1 mainly includes an outer cover 51, an LCD panel (LCD panel ) 52 (i.e. display screen 70), liquid crystal panel circuit board (LCD-PCB) 53 and main circuit board (main PCB) 54, etc., wherein said main circuit board (main PCB) 44 is used to comprise the electronic control unit of the present invention The layout of all components of (ECU) 20; on the outer cover 51 of concrete body 50, photographic lens (camera) connection port 501, global positioning system (GPS) connection port 502, composite video broadcast signal (Composite Video Broadcast Signal) can be set , CVBS output) connection port 503, power connection port 504, speaker hole 505 of the auditory warning unit (audible warning unit) 31, LED warning light 506 of the visual warning unit (visual warning unit) 32, function key 507, LCD panel switch key (LCD ON/OFF) 508 and loudspeaker volume selection key 509 etc. are shown in Figure 4-6; By above-mentioned structure, make lane departure warning device 1 of the present invention can be beneficial to manufacture, assemble and install, and promote the convenience of use .

When the lane departure warning device 1 of the present invention is in use, the identification parameters can be set by the user, including the starting point of the lane, the vanishing point of the lane and the left side of the vehicle on the road image read by the camera lens 10, such as the lane line image of the expressway. Offset sensitivity can also be pre-set to start the system when the vehicle speed reaches 60 kilometers per hour (Km/hr), that is, the warning function of the lane departure warning device 1 is started; Optionally, the specific shape 50 of the lane departure warning device 1 of the present invention can add a car body signal connection port, which can be connected externally when needed by consumers.

Referring to FIG. 8 , it is a schematic diagram of the function flow of the lane departure warning device 1 of the present invention when it is in use. The action function flow of the lane departure warning device 1 of the present invention comprises the following steps: the lane departure warning system starts first; then the road image is read by the photographic lens 10; )22 perform brightness signal separation; then identify or judge whether the lane line is detected, if not (NO), continue to detect; if (YES), analyze whether the car deviates; if not (not deviate), then use the camera Lens 10 continues to read the road image; if (there is a deviation), then at this moment, the global positioning system (GPS) 40 obtains the vehicle speed of the vehicle at that time and analyzes whether the vehicle speed is higher than the set value such as being set as the vehicle speed and reaching 60 per hour. Km (Km/hr) when just start warning system; If not, then do not warn, if so, then transmit signal to warning unit (warning unit) 30 such as auditory warning unit (audible warning unit) 31 and/or visual warning unit (visual warning unit) warning unit) 32 and/or vibrating warning unit (vibrating warning unit) 33 give a warning to achieve the use function of the lane departure warning device 1 of the present invention.

The above are only preferred embodiments of the present invention, and are only illustrative, not restrictive, of the present invention. Those with ordinary knowledge in the technical field understand that many changes, modifications, and even equivalent changes can be made within the spirit and scope defined by the claims of the present invention, but all will fall within the protection scope of the present invention.

Claims (11)

1. A lane departure warning device connected to a global positioning system, characterized in that it forms a specific body to be installed on a car and includes a photographic lens, an electronic control unit, a global positioning system and at least A warning unit, wherein: The shell of the concrete body is provided with a photographic lens connection port, a global positioning system connection port, a power supply connection port, a horn hole of an auditory warning unit and an LED warning light of a visual warning unit; The photographic lens is plugged into the photographic lens connection port on the shell of the specific body by means of a wire to connect with the specific body, and is used to read the road image in front of the vehicle, and the read image input to said electronic control unit; The electronic control unit includes an image decoder, a digital signal processor and a memory unit, and the electronic control unit is used to process image recognition; The global positioning system is connected to the specific body by inserting a wire into the one global positioning system connection port on the shell of the specific body; Wherein, the electronic control unit is further connected with the global positioning system, so as to obtain the vehicle speed signal of the vehicle from the global positioning system; Wherein, when in use, the road image is read through the camera lens and sent to the electronic control unit for image recognition processing, and the electronic control unit further obtains the vehicle speed signal at that time through the connected global positioning system, It is processed by the electronic control unit to identify and judge whether it is a dangerous driving behavior, and if so, transmit a signal to the warning unit to make the warning unit issue a warning to warn the driver. 2 . The lane departure warning device connected to a global positioning system according to claim 1 , wherein a display screen is further arranged on the casing of the concrete body to display the road image read by the camera lens. 3 . 3. The lane departure warning device connected to the global positioning system according to claim 1, characterized in that, on the shell of the concrete body, a connection port for outputting a composite television broadcast signal is further matched, and it is connected with an external connection by a lead wire. Display connection use. 4 . The lane departure warning device connected to a global positioning system according to claim 3 , wherein the external display screen is a liquid crystal panel or a head-up display in a projection display mode. 5 . 5 . The lane departure warning device connected to a global positioning system according to claim 1 , wherein the digital signal processor is formed by an integrated integrated circuit. 6. The lane departure warning device connected to the global positioning system according to claim 1, wherein the digital signal processor comprises separate parts of an image input, a digital signal processing core, a control unit and a memory. integrated circuit. 7 . The lane departure warning device connected to a global positioning system according to claim 1 , wherein the memory unit is composed of a double data rate synchronous dynamic random access memory. 8 . The lane departure warning device connected to a global positioning system according to claim 7 , wherein the memory unit further comprises a programmable read-only memory and/or a flash memory. 9 . The lane departure warning device connected to a global positioning system according to claim 1 , wherein the warning unit comprises any one of an auditory warning unit, a visual warning unit and a vibration warning unit or a combination thereof. 10. The lane departure warning device connected to the global positioning system according to claim 1, wherein the specific body of the lane departure warning device is further provided with at least one function key, a liquid crystal panel switch key and a horn Volume selection key. 11. The lane departure warning device connected to a global positioning system according to claim 1, wherein when the electronic control unit obtains the current vehicle speed signal through the connected global positioning system, the vehicle speed signal is set to The warning unit is activated to give a warning when the speed is 60 kilometers per hour or above.

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