KR20200039241A - Apparatus and method for generating a warning - Google Patents

Abstract

The present invention relates to a warning generation apparatus which can generate a warning to prevent a vehicle from departing from the current lane in a Chinese style solid-line crossroad, and a method thereof. According to one embodiment of the present invention, the warning generation apparatus includes: a memory storing at least one instruction therein; and a processor generating a warning signal by executing instructions. The instructions include: a first instruction generating a crossroad entry satisfaction condition if a vehicle starts to enter a fourth section from a third section while driving along a road comprising first to fifth sections including a Chinese style solid-line crossroad; and a second instruction generating a warning generation condition if the vehicle drives from the current lane to a first direction, to a second direction, and to the second direction after driving to the first direction in the fourth section.

Description

Apparatus and method for generating an alarm {APPARATUS AND METHOD FOR GENERATING A WARNING}

The present invention relates to an alarm generating device and method for generating an alarm so that a vehicle entering a solid line intersection in China does not leave the current lane.

The intersection characteristics of China consist of a solid line after the dotted line, a stop line at the end of the solid line, a pedestrian crossing after the stop line, and a surveillance camera on the upper line. The solid line section of the Chinese intersection is 30m-70m, which is shorter than the solid line section in the tunnel or the solid line section of the general road. Therefore, Chinese drivers are forced to change the lane after entering the solid line at the intersection, and it is highly stressed by being fined or fined for violating traffic laws (lane violation).

The above-mentioned background art is technical information acquired by the inventor for the derivation of the present invention or acquired in the derivation process of the present invention, and is not necessarily a known technology disclosed to the general public prior to the filing of the present invention.

Domestic registered patent publication No. 10-1685900

The present invention has been devised to solve the above-mentioned problems and / or limitations, and an object of the present invention according to one aspect is to generate an alert so that a vehicle entering a solid line intersection in China does not deviate from the current lane and thus violates the lane of a Chinese driver It is to relieve stress.

An alarm generating apparatus according to an embodiment of the present invention includes a memory for storing one or more instructions; And a processor that executes the instruction to generate an alarm signal, wherein the instruction enters a third section to a fourth section during a road driving in which a vehicle is composed of first to fifth sections including a Chinese intersection. In the case of starting, a first instruction generating an intersection entry satisfaction condition, and in the fourth section, the vehicle travels in a first direction from a current driving lane, travels in a second direction, and in the second direction after the first direction When driving in any one of the driving may include a second instruction to generate an alarm condition.

The instruction may further include a third instruction that creates an intersection entry condition when the vehicle starts entering the fifth section.

The instruction may further include a fourth instruction that generates an alarm generation cancel condition after the processor executes the third instruction.

The instruction may be performed by the processor again when the vehicle travels in the first direction after driving in the first direction from the current driving lane or after the vehicle travels in the second direction from the current driving lane. When driving in the two directions, a fifth instruction that generates an alarm release condition may be further included.

The apparatus may further include an alarm output unit receiving the alarm signal from the processor and outputting one or more of an audible alarm signal, a visual alarm signal, and a tactile alarm signal.

An alarm generating method according to an embodiment of the present invention includes the steps of: generating, by a processor, an instruction to generate an alarm signal, wherein the instruction comprises a first to fifth section in which a vehicle includes a Chinese intersection. A first instruction that generates an intersection entry satisfactory condition when starting the entry from the third section to the fourth section during road driving, and the vehicle traveling in the first direction from the current driving lane in the fourth section, A second instruction may be generated to generate an alarm condition when driving in two directions and driving in one of the second directions after the first direction.

The instruction may further include a third instruction that creates an intersection entry condition when the vehicle starts entering the fifth section.

The instruction may further include a fourth instruction that generates an alarm generation cancel condition after the processor executes the third instruction.

The instruction may be performed by the processor again when the vehicle travels in the first direction after driving in the first direction from the current driving lane or after the vehicle travels in the second direction from the current driving lane. When driving in the two directions, a fifth instruction that generates an alarm release condition may be further included.

The method may further include a step of outputting at least one of an audible alert signal, a visual alert signal, and a tactile alert signal by receiving the alert signal from the processor.

In addition to this, other methods for implementing the present invention, other systems, and computer programs for executing the methods may be further provided.

Other aspects, features, and advantages than those described above will become apparent from the following drawings, claims, and detailed description of the invention.

According to embodiments, an alert may be generated to reduce the stress of a lane violation of a Chinese driver by preventing an automobile entering a Chinese intersection from leaving the current lane.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a view schematically illustrating characteristics of a road including an intersection in China that can realize an alarm generating device according to an embodiment of the present invention.
2 is a view schematically illustrating an alarm generating device according to an embodiment of the present invention.
FIG. 3 is a diagram for schematically explaining a detailed configuration of a processor among the alarm generating devices of FIG. 2.
FIG. 4 is a view schematically illustrating a case in which an alarm is generated on a Chinese intersection in FIG. 1.
5 and 6 are flowcharts for explaining an alarm generating method according to an embodiment of the present invention.

Advantages and features of the present invention, and methods for achieving them will be clarified with reference to embodiments described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments presented below, but may be implemented in various different forms, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. . The embodiments presented below are provided to make the disclosure of the present invention complete, and to fully inform the scope of the invention to those skilled in the art to which the present invention pertains. In the description of the present invention, when it is determined that a detailed description of known technologies related to the present invention may obscure the subject matter of the present invention, the detailed description will be omitted.

Terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "include" or "have" are intended to indicate the presence of features, numbers, steps, actions, components, parts or combinations thereof described herein, one or more other features. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance. Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from other components.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings, and in describing with reference to the accompanying drawings, the same or corresponding components are assigned the same reference numbers, and redundant description thereof is omitted. I will do it.

1 is a view schematically illustrating characteristics of a road including an intersection in China that can realize an alarm generating device according to an embodiment of the present invention. Referring to FIG. 1, a road including an intersection in China may include a first section 110 to a fifth section 150 and a surveillance camera 160. Here, the third section 130 to the fifth section 150 and the surveillance camera 160 may correspond to a Chinese intersection.

The first section 110 may include a dotted lane section in which a vehicle can drive before entering the intersection, and in an embodiment, the first section 110 in FIG. 1 may include three lanes.

The second section 120 may include a blanking section in which a vehicle may drive before entering the intersection, but no lane exists, and may exist as much as a designated distance (eg, a first distance).

The third section 130 may include a dotted lane section in which the vehicle can travel after entering the intersection, and may exist as much as a specified distance (eg, a second distance). The third section 130 may include a section composed of more lanes than the first section 110. For example, the third section 120 in FIG. 1 may include four lanes. Therefore, the lane width of the third section 120 may be narrower than the lane width of the first section 110.

The fourth section 140 may include a solid line lane section in which the vehicle can travel after entering the intersection, and may be configured with the same number of lanes as the third section 130. The lane width of the fourth section 140 may be the same as the lane width of the third section 130. Here, the surveillance camera 160 is provided in the fourth section 140, so that it is possible to determine that the traffic law has been violated when the vehicle leaves the lane in the fourth section 140 and photograph the license plate of the vehicle. The end of the fourth section 140 may further include a stop line 141 that the vehicle must stop accordingly when a red light is turned on at a traffic light (not shown) located in front.

The fifth section 150 may include a crosswalk section after the stop line 141.

FIG. 2 is a view schematically illustrating an alarm generating device according to an embodiment of the present invention, and FIG. 3 is a diagram schematically illustrating a detailed configuration of a processor among the alarm generating devices of FIG. 2. 2 and 3, the alarm generator 200 may include an image capturing unit 210, a memory 220, a processor 230, and an alarm output unit 240. In this embodiment, the processor 230 may include an intersection entry determination unit 231, an alarm generation / release unit 232, and an intersection entry determination unit 233, and the alarm output unit 240 may include an audio output unit ( 241), a display unit 242 and a steering wheel 243.

The image photographing unit 210 may include a camera provided in the vehicle and capable of photographing an image frame around the vehicle. The camera refers to a camera that photographs a subject in a photographing area using, for example, a COMS (complementary metal-oxide semiconductor) module (not shown) or a CCD (charge coupled device) module (not shown), and an input image frame It is provided as a COMS module or a CCD module through a silver lens (not shown), and the COMS module or the CCD module converts and outputs an optical signal of an object passing through the lens into an electrical signal. An image signal processing unit (not shown) is provided inside the camera to reduce noise in the captured image frame, gamma correction, color filter array interpolation, and color matrix. Image signal processing for image quality improvement such as matrix, color correction, and color enhancement may be performed. In addition, the image signal processing unit may perform color processing, blur processing, edge enhancement processing, image analysis processing, image recognition processing, image effect processing, and the like functionally. Face recognition, scene recognition processing, and the like can be performed by the image recognition processing. For example, luminance level adjustment, color correction, contrast adjustment, outline enhancement adjustment, screen division processing, character image generation, and image synthesis processing may be performed.

The memory 220 may store various data and programs for controlling the alarm generating device 200. For example, if the steering angle value is greater than 0 with respect to 0, information indicating that the steering wheel 243 has moved in the first direction (eg, left), and if the steering angle value with respect to 0 is less than 0, steering is performed. Information indicating that the wheel 243 has been moved in the second direction (eg, right) may be stored.

Also, the program stored in the memory 220 may include one or more instructions. In this embodiment, a program (one or more instructions) stored in the memory 220 may be accessed and executed by the processor 230. Here, the instruction may include a first instruction to a sixth instruction.

The first instruction is an intersection when the vehicle starts entering the third section 130 to the fourth section 140 while driving on the road composed of the first section 110 to the fifth section 150 including the Chinese intersection. It may include a program for generating an entry satisfaction condition. Here, the first instruction may further include a program for calculating the lane width based on the image frame captured by the image capturing unit 210 and a program for determining the first period 110 to the fifth period 150. .

When the second instruction runs after the first instruction, in the fourth section 140, the vehicle travels in one direction from the current driving lane in the first direction, the second direction, and the second direction after the first direction. It may include a program for generating an alarm condition. When the alarm generation condition is satisfied by executing the second instruction, an alarm generation signal may be transmitted to the alarm output unit 240 to output an alarm.

The third instruction may include a program that generates an intersection entry condition when the vehicle starts entering the fifth section 150, and the fourth instruction includes a program that generates an alarm release condition after the third instruction is executed. can do. With the execution of the third instruction and the fourth instruction, the vehicle may advance from the intersection and may no longer output an alert for the departure of the intersection lane.

The fifth instruction generates an alarm when the vehicle travels in the first direction after driving in the first direction from the current driving lane or when the vehicle travels in the second direction again after driving in the second direction from the current driving lane. It may include a program for generating a release condition. Here, when the vehicle travels in the same direction twice in the current lane, one alarm signal is generated, and when the vehicle travels in the first direction in the current lane and then travels in the second direction, two alarm signals may be generated. . Subsequently, it is determined that the change in the driving direction of the vehicle is the will of the driver and may no longer generate an alarm.

In order to prevent misrecognition of the fourth section 140, the sixth instruction enters the fourth section 140 based on the previous driving situation of the current vehicle if a preceding vehicle exists in front of the current vehicle and the distance between the two vehicles is within a certain distance. It may include a program for accurately determining the. Here, if a preceding vehicle exists in front of the current vehicle and the distance between the two vehicles is within a certain distance, an error may be generated in which the fourth section 140 is determined as a dotted section rather than a solid line. Therefore, if a preceding vehicle exists in front of the current vehicle and the distance between the two vehicles is within a certain distance, the previous driving situation of the current vehicle is determined to determine the occurrence of the dotted line section after driving the first section 110 to the third section 130. At this time, the dotted line section may be determined as the solid line of the fourth section 140.

The memory 220 may include internal memory and / or external memory, volatile memory such as DRAM, SRAM, or SDRAM, one time programmable ROM (OTPROM), PROM, EPROM, EEPROM, mask ROM, flash ROM, Non-volatile memory, SSD, such as NAND flash memory, or NOR flash memory. It may include a compact flash (CF) card, an SD card, a Micro-SD card, a Mini-SD card, an Xd card, a flash drive such as a memory stick, or a storage device such as an HDD.

The processor 230 may control the overall operation state of the alarm generating device 200. The processor 230 is a kind of central processing unit, and may provide various functions by driving control software mounted in an internal memory (not shown). Here, the 'processor (processor, 230)', for example, may mean a data processing device embedded in hardware having physically structured circuits to perform functions represented by codes or instructions included in a program. . As an example of such a data processing device embedded in hardware, a microprocessor, a central processing unit (CPU), a processor core, a multiprocessor, and an application-specific integrated ASIC circuit), a field programmable gate array (FPGA), and the like, but the scope of the present invention is not limited thereto.

In this embodiment, the processor 230 may include an intersection entry determination unit 231, an alarm generation / release unit 232, and an intersection entry determination unit 233. Here, the processor 230 accesses the memory 220 and executes the first instruction to the sixth instruction, and the intersection entry determination unit 231, the alarm generation / release unit 232, and the intersection entry determination unit 233. It can operate organically to generate an alarm generation signal or an alarm release signal.

The intersection entry determination unit 231 may access the memory 220 and execute the first instruction to determine the intersection of the vehicle. The intersection entrance determining unit 231 may calculate the average lane width in real time using an image frame while driving the first section 110 to the fifth section 150. The intersection entrance determination unit 231 may determine whether the second section 120 has no lanes as a blanking section using an image frame. When the lane information is normalized after the first distance, the intersection entry determination unit 231 may determine that the vehicle has entered the third section 130. The intersection entrance determining unit 231 has a difference between the lane width of the first section 110 and the lane width of the third section 130 is within a reference value (for example, between 0.3m and 0.7m) and the vehicle after the second distance. It may be determined that the fourth section 140 has been entered.

The alarm generation / release unit 232 may generate an alarm signal by accessing the memory 220 and executing the second instruction after the execution of the first instruction. The alarm generation / release unit 232 may generate one alarm signal when the vehicle is traveling in the first direction from the current driving lane. In addition, the alarm generation / release unit 232 may generate one alarm signal when the vehicle is traveling in the second direction from the current driving lane. In addition, the alarm generation / release unit 232 may generate two alarm signals when driving in the first direction and then driving in the second direction. Here, the alarm generation / release unit 232 accesses the memory 220 to determine that the steering wheel 243 has moved in the first direction (for example, the left side) when the steering angle value is greater than 0 based on 0, If the steering angle value is less than 0 around 0, it may be determined that the steering wheel 243 has moved in the second direction (eg, right).

In addition, the alarm generation / release unit 232 may cancel the generation of the alarm signal by executing the fourth instruction after the execution of the third instruction described later. That is, the alarm generation / release unit 232 may release the generation of the alarm signal when the vehicle enters the fifth section 150.

Also, the alarm generation / release unit 232 may cancel the generation of the alarm signal by executing the fifth instruction after the second instruction is executed. That is, the alarm generation / release unit 232 is used when the vehicle travels in the first direction again after driving in the first direction from the current driving lane or the second direction again after the vehicle travels in the second direction from the current driving lane. In the case of driving by, the alarm signal generation can be canceled. Furthermore, the alarm generation / release unit 232 may release the generation of the alarm signal even when the vehicle travels in the first direction from the current driving lane and then travels in the second direction.

FIG. 4 is a view schematically illustrating a case in which an alarm is generated on a Chinese intersection in FIG. 1. Referring to FIG. 4, FIG. 4A may generate one alarm signal when the vehicle starts to enter the first section from the current driving lane after starting the entry from the third section 130 to the fourth section 140. . However, when the vehicle travels again in the first direction after the alarm signal is generated, the alarm signal generation may be canceled.

4B may generate an alarm signal once when the vehicle starts to enter the second section from the current driving lane after starting the entry from the third section 130 to the fourth section 140. However, when the vehicle travels again in the second direction after the alarm signal is generated, it is possible to cancel the alarm signal generation.

4C may generate two alarm signals when the vehicle starts to enter the first direction from the current driving lane after starting the entry from the third section 130 to the fourth section 140 and then drives in the second direction. . However, when the vehicle travels again in the first direction after the alarm signal is generated, the alarm signal generation may be canceled.

The intersection advance determination unit 233 may access the memory 220 and execute the third instruction to determine the intersection of the vehicle. That is, when the vehicle starts entering the fifth section 150, the intersection advancement determination unit 233 may determine the intersection advancement and release an alarm signal.

In an exemplary embodiment, the processor 230 may access the memory 220 to execute the sixth instruction to prevent misrecognition of the fourth section 140. If there is a preceding vehicle in front of the vehicle currently being driven and the distance between the two vehicles is within a certain distance, an error may occur in determining the fourth section 140 as a dotted section, not as a solid line section. Therefore, if the preceding vehicle exists in front of the current vehicle and the distance between the two vehicles is within a certain distance, the processor 230 determines the previous driving situation of the current vehicle, and then runs the first section 110 to the third section 130, followed by a dotted line. When determining that a section has occurred, the dotted line section may be determined as a solid line of the fourth section 140.

In this embodiment, the image capturing unit 210, the memory 220 and the processor 230 may be provided in the image capturing unit 210 as one device.

The alarm output unit 240 may output an alarm by receiving an alarm generation signal or an alarm release signal transmitted from the processor 230. The sound output unit 241 may output an alarm signal as an audio signal so that the driver can hear it, and the display unit 242 may output an alarm signal as a display signal for the driver to see, and the steering wheel 243 Can output an alarm signal as a vibration signal so that the driver can feel it as a touch.

5 and 6 are flowcharts for explaining an alarm generating method according to an embodiment of the present invention. In the following description, portions overlapping with the descriptions of FIGS. 1 to 4 will be omitted.

Referring to FIG. 5, in step S510, the alarm generating device 200 executes the first instruction to determine the vehicle's intersection. 6 is a flowchart illustrating a method for determining a vehicle's entry into an intersection.

Referring to FIG. 6, in step S511, the alarm generating device 200 calculates an average lane width in real time using an image frame while driving the first section 110 to the fifth section 150.

In step S512, the alarm generating device 200 determines whether the lane has entered the second section 120 in which no lane exists as a blanking section using an image frame.

In step S513, the alarm generating device 200 enters the second section 120 and determines that the vehicle has entered the third section 130 when the lane information is normalized after the first distance.

In step S514, the alarm generating device 200 determines whether the difference between the lane width of the first section 110 and the lane width of the third section 130 is within a reference value (for example, between 0.3m and 0.7m). .

In step S515, when the difference between the lane width of the first section 110 and the lane width of the third section 130 is within a reference value, the alarm generating device 200 moves the vehicle after the second distance to the fourth section 140. It is judged that you have entered.

Returning to FIG. 5, in step S520, the alarm generating device 200 executes the second instruction to generate an alarm when the alarm generating condition is satisfied.

In step S530, the alarm generating device 200 determines whether the intersection has been advanced by executing the third instruction. Here, the decision to advance to the intersection may include a case where the vehicle enters the fifth section 150.

In step S540, the alarm generating device 200 releases the alarm by executing the fourth instruction.

The embodiment according to the present invention described above may be implemented in the form of a computer program that can be executed through various components on a computer, and such a computer program can be recorded on a computer-readable medium. At this time, the medium includes a hard disk, a magnetic medium such as a floppy disk and a magnetic tape, an optical recording medium such as a CD-ROM and DVD, a magneto-optical medium such as a floptical disk, and a ROM. , Hardware devices specially configured to store and execute program instructions, such as RAM, flash memory, and the like.

Meanwhile, the computer program may be specially designed and configured for the present invention or may be known and available to those skilled in the computer software field. Examples of computer programs may include machine language codes such as those produced by a compiler, as well as high-level language codes that can be executed by a computer using an interpreter or the like.

In the specification (particularly in the claims) of the present invention, the use of the term " above " and similar indication terms may be in both singular and plural. In addition, in the case where a range is described in the present invention, it includes the invention to which the individual values belonging to the range are applied (if there is no contrary description), and the description of the invention describes each individual value constituting the range Same as

Unless explicitly stated or contrary to the steps constituting the method according to the invention, the steps can be done in a suitable order. The present invention is not necessarily limited to the order of description of the above steps. The use of all examples or exemplary terms (eg, etc.) in the present invention is merely for describing the present invention in detail, and the scope of the present invention is limited due to the examples or exemplary terms, unless it is defined by the claims. It does not work. In addition, those skilled in the art can recognize that various modifications, combinations, and changes can be configured according to design conditions and factors within the scope of the appended claims or equivalents thereof.

Accordingly, the spirit of the present invention is not limited to the above-described embodiments, and should not be determined, and the scope of the spirit of the present invention as well as the claims to be described later, as well as all ranges that are equivalent to or equivalently changed from the claims Would belong to

200: alarm generating device
210: video recording unit
220: memory
230: processor
240: alarm output

Claims (11)

A memory that stores one or more instructions; And
Includes a processor that executes the instruction to generate an alarm signal;
The instruction,
When a vehicle starts to enter the third section to the fourth section while driving on the road consisting of the first to fifth sections including the Chinese intersection, the first instruction to generate an intersection entry satisfaction condition and the fourth section An alarm that includes a second instruction that generates an alarm condition when the vehicle travels in a first direction from a current driving lane, a second direction, and a second direction after the first direction Generating device. The method of claim 1, wherein the instruction,
And a third instruction for generating an intersection entry condition when the vehicle starts entering the fifth section. The method of claim 2, wherein the instruction,
And a fourth instruction for generating an alarm generation cancel condition after the processor executes the third instruction. The method of claim 1, wherein the instruction,
When the processor travels in the first direction after the vehicle travels in the first direction from the current driving lane or the vehicle travels again in the second direction after driving in the second direction from the current driving lane And a fifth instruction for generating an alarm generation cancel condition. According to claim 1,
And an alarm output unit receiving the alarm signal from the processor and outputting one or more of an audible alarm signal, a visual alarm signal, and a tactile alarm signal. Includes, by the processor, executing the instruction to generate an alarm signal;
The instruction,
When a vehicle starts to enter the third section to the fourth section while driving on the road consisting of the first to fifth sections including the Chinese intersection, the first instruction to generate an intersection entry satisfaction condition and the fourth section An alarm that includes a second instruction that generates an alarm condition when the vehicle travels in a first direction from a current driving lane, a second direction, and a second direction after the first direction How it occurs. The method of claim 6, wherein the instruction,
The vehicle further includes a third instruction that generates an intersection entry condition when the entry of the fifth section starts. The method of claim 7, wherein the instruction,
And a fourth instruction for generating an alarm generation cancel condition after the processor executes the third instruction. The method of claim 6, wherein the instruction,
When the processor travels in the first direction after the vehicle travels in the first direction from the current driving lane or the vehicle travels again in the second direction after driving in the second direction from the current driving lane And a fifth instruction for generating an alarm generation cancel condition. The method of claim 6,
And outputting at least one of an audible alarm signal, a visual alarm signal, and a tactile alarm signal by receiving the alarm signal from the processor by an alarm output unit. A computer program stored on a computer-readable recording medium to execute the method of any one of claims 6 to 10 using a computer.

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