KR102168713B1 - Method, apparatus and computer program for providing traffic report using smart led road sign - Google Patents

Abstract

Provided are a method, a device and a computer program for providing traffic information by using a smart LED milestone sign. According to various embodiments of the present invention, the method for providing traffic information by using a smart LED milestone sign is performed by a computing device, and comprises the following steps of: outputting milestone sign information based on the location of a milestone sign device; obtaining sensor data for a predetermined area from a sensor; analyzing the sensor data to determine whether an event has occurred in the predetermined area; using the sensor data to determine a cause of occurrence of the event when detecting the occurrence of the event; and outputting a guide message including the determined cause of the occurrence of the event and guide information in accordance with the cause of the occurrence.

Description

Traffic information provision method, device and computer program using smart LED signpost {METHOD, APPARATUS AND COMPUTER PROGRAM FOR PROVIDING TRAFFIC REPORT USING SMART LED ROAD SIGN}

Various embodiments of the present invention provide a method, an apparatus, and a computer program for providing traffic information using a smart LED signpost that can provide traffic information indicating the current state of the road using smart LED signposts provided throughout the road. Is to do.

Real-time monitoring of road conditions is essential for safety and smooth vehicle operation. In particular, detecting an accident or road icing on the road and providing information about it is important in that it can prevent secondary accidents by inducing users to recognize the reason for the delay and respond appropriately accordingly. Do.

However, most of the existing monitoring means use expensive equipment, and it is difficult for monitoring results and feedback accordingly to proceed in real time.

In recent years, various sensor devices with stable and low prices have been produced and sold, and IoT technology capable of connecting various sensor terminals through a network has been developed and distributed.

IoT (Internet of Things) is also referred to as the Internet of Things, and refers to a technology or environment in which sensors and communication modules are attached to objects to exchange data with a server in real time through a network. The existing IoT was also understood as a model controlled by a central server, but in recent years, IoT systems based on cloud computing are also widely developed and provided.

The cloud service has continued to evolve by providing optimized technologies for data processing and storage in response to environmental changes that require miniaturization of devices such as smartphones and advancement of processing work.

Accordingly, cloud service users could have a reasonable cost structure through a usage-based payment structure. However, problems such as server stability, security problems, and response speed still remain.

In particular, in IoT in the industrial field, massive data that needs to be processed and stored often needs to maintain urgency, accuracy, and security. In this case, there is a limit to data processing only with current cloud computing technology.

Accordingly, the concept of fog computing, which extends cloud computing and services to the edge (edge) of the network, was introduced, and the concept of using individual devices (Edge) rather than a centralized network system was introduced more widely.

Edge computing enables data processing from IoT objects directly, so it has the advantage of having a lower computing power than cloud computing, but a faster response speed and no need for broadband communication. Edge computing means placing processors and data near the end (end point) rather than sending it to the center (cloud).

Edge computing is a technology that can immediately analyze data at the edge where data is collected and apply it to the field, ensuring instantaneous and stability compared to the cloud.

Therefore, there is a need to develop a system capable of determining the situation of the road in real time and providing feedback using these technologies.

Korean Patent Publication No. 10-2010-0098640 (published on September 08, 2010)

The problem to be solved by the present invention is to determine an event occurring on the road and the cause of the event using sensor data detected in real time, and to generate an event and an event using smart LED signpost devices provided throughout the road. It is to provide a traffic information providing method, apparatus, and computer program using smart LED signpost that can provide information on the cause and countermeasures accordingly.

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

A method of providing traffic information using a smart LED signpost according to an embodiment of the present invention for solving the above-described problem, in a method performed by a computing device, outputs signpost information based on the position of the signpost Steps, obtaining sensor data for a predetermined area from a sensor, determining whether an event occurs in the predetermined area by analyzing the sensor data, and using the sensor data when the occurrence of the event is detected Thus, determining the cause of the event and outputting a guide message including guide information according to the cause of the determined event and the cause of the event.

A traffic information providing apparatus using a smart LED signpost according to an embodiment of the present invention for solving the above-described problem includes a memory for storing one or more instructions and a processor for executing the one or more instructions stored in the memory, The processor, by executing the one or more instructions, outputting information about a milestone mark based on a location of a signpost device, obtaining sensor data for a predetermined area from a sensor, and analyzing the sensor data to the predetermined area Determining whether or not an event occurs within, when the occurrence of the event is detected, determining the cause of the event using the sensor data, and guidance according to the cause of the determined event and the cause of the occurrence A method of providing traffic information using a smart LED signpost including the step of outputting a guide message including information may be performed.

A traffic information providing computer program using a smart LED signpost according to an embodiment of the present invention for solving the above-described problem is combined with a computer that is hardware, and outputting signpost information based on the location of the signpost device, Obtaining sensor data for a predetermined area from a sensor, determining whether an event occurs in the predetermined area by analyzing the sensor data, and when the occurrence of the event is detected, using the sensor data To be able to perform a method of providing traffic information using a smart LED signpost including the step of determining the cause of the event and outputting a guide message including guide information according to the determined cause of the event and the cause of the occurrence. It may be stored in a computer-readable recording medium.

Other specific details of the present invention are included in the detailed description and drawings.

According to various embodiments of the present invention, an event occurring on a road and the cause of the event are determined using sensor data detected in real time, and events and events are performed using smart LED signpost devices provided throughout the road. By providing information on the cause of occurrence and countermeasures accordingly, there is an advantage in that information can be effectively provided by using a signpost device.

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

1 is a block diagram of a traffic information providing system according to an embodiment of the present invention.
2 is a hardware configuration diagram of a traffic information providing apparatus according to another embodiment of the present invention.
3 is a diagram showing a form in which a traffic information providing system according to an embodiment of the present invention is applied to a predetermined area.
4 is a flowchart of a method for providing traffic information according to another embodiment of the present invention.
5 is a diagram schematically illustrating a signpost device applicable to various embodiments.
6 is a diagram schematically illustrating an IoT gateway applicable to various embodiments.
7 is a hardware configuration diagram of a sensor applicable to various embodiments.
8 is a diagram illustrating an output screen of a signpost device according to a cause of an event in various embodiments.
9 and 10 are diagrams illustrating a user interface (UI) provided by an apparatus for providing traffic information in various embodiments.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, only the present embodiments are intended to complete the disclosure of the present invention, It is provided to fully inform the technician of the scope of the present invention, and the present invention is only defined by the scope of the claims.

The terms used in the present specification are for describing exemplary embodiments and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, “comprises” and/or “comprising” do not exclude the presence or addition of one or more other elements other than the mentioned elements. Throughout the specification, the same reference numerals refer to the same elements, and “and/or” includes each and all combinations of one or more of the mentioned elements. Although "first", "second", and the like are used to describe various elements, it goes without saying that these elements are not limited by these terms. These terms are only used to distinguish one component from another component. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical idea of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used as meanings that can be commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not interpreted ideally or excessively unless explicitly defined specifically.

The term "unit" or "module" used in the specification refers to a hardware component such as software, FPGA or ASIC, and the "unit" or "module" performs certain roles. However, "unit" or "module" is not meant to be limited to software or hardware. The “unit” or “module” may be configured to be in an addressable storage medium, or may be configured to reproduce one or more processors. Thus, as an example, "sub" or "module" refers to components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, It includes procedures, subroutines, segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays and variables. Components and functions provided within "sub" or "module" may be combined into a smaller number of components and "sub" or "modules" or into additional components and "sub" or "modules". Can be further separated.

Spatially relative terms "below", "beneath", "lower", "above", "upper", etc., as shown in the figure It can be used to easily describe the correlation between a component and other components. Spatially relative terms should be understood as terms including different directions of components during use or operation in addition to the directions shown in the drawings. For example, if a component shown in a drawing is turned over, a component described as "below" or "beneath" of another component will be placed "above" the other component. I can. Accordingly, the exemplary term “below” may include both directions below and above. Components may be oriented in other directions, and thus spatially relative terms may be interpreted according to orientation.

In the present specification, a computer refers to all kinds of hardware devices including at least one processor, and may be understood as encompassing a software configuration operating in a corresponding hardware device according to embodiments. For example, the computer may be understood as including all of a smartphone, a tablet PC, a desktop, a laptop, and a user client and an application running on each device, but is not limited thereto.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Each of the steps described herein is described as being performed by a computer, but the subject of each step is not limited thereto, and at least some of the steps may be performed by different devices according to embodiments.

1 is a block diagram of a traffic information providing system according to an embodiment of the present invention.

Referring to FIG. 1, a traffic information providing system according to an embodiment of the present invention may include a traffic information providing device 100, a user terminal 20, and an external server 30.

Here, the traffic information providing system illustrated in FIG. 1 is according to an exemplary embodiment, and its components are not limited to the exemplary embodiment illustrated in FIG. 1, and may be added, changed, or deleted as necessary.

In an embodiment, the traffic information providing apparatus 100 may obtain sensor data for a predetermined area from a sensor (eg, 300 in FIG. 3), and analyze the sensor data to determine whether an event occurs in a predetermined area. I can judge. For example, the traffic information providing apparatus 100 may obtain sensor data generated by detecting a predetermined area from a sensor previously installed in the predetermined area. However, the present invention is not limited thereto, and sensor data detected using a sensor included in the user terminal 20 of a user located in a predetermined area is obtained, or detected using a sensor provided in a vehicle traveling in a predetermined area. Sensor data can be obtained.

In an embodiment, when the occurrence of an event is detected, the traffic information providing apparatus 100 may determine the cause of the event by using sensor data. For example, the traffic information providing apparatus 100 may determine the cause of the event from the sensor data by using a pre-learned artificial intelligence model using sensor data, event detection data, and event occurrence cause data as learning data. . However, it is not limited thereto.

Here, the event may mean that the driving state of vehicles traveling on the road becomes congested, and the cause of the event is the cause of the driving state of the vehicle becoming a congestion state (e.g., congestion due to an accident, freezing of the road surface) May mean congestion by, etc.). However, it is not limited thereto.

In an embodiment, the traffic information providing apparatus 100 may output a guide message including whether or not an event is determined using sensor data, a cause of the event, and guide information according thereto. For example, the traffic information providing device 100 may output a guide message using a signpost device (eg, 200 of FIG. 3) that is provided in various regions and outputs a signpost through a display.

In various embodiments, the traffic information providing apparatus 100 includes a user terminal 20 of a user located in a predetermined area through the network 40 (eg, a smartphone terminal of a user located in a predetermined area and a predetermined area. The infotainment system (Infortainment system) of the vehicle traveling can be connected by wire or wireless, and a guide message can be provided to the user terminal 20 to output a guide message on the screen of the user terminal 20. However, it is not limited thereto.

In various embodiments, the traffic information providing apparatus 100 visualizes and outputs various analysis result data (eg, data related to whether an event is detected and data related to the cause of the event) generated by analyzing sensor data and sensor data. can do. For example, the traffic information providing apparatus 100 may provide a UI (eg, U 50 in FIGS. 9 and 10) configured to display and output various visualized analysis result data as a single screen.

In various embodiments, the traffic information providing apparatus 100 may include a cloud server, and edge computing may be applied.

In general, data generated from smart devices or IoT objects is stored and processed by the main server through cloud technology.

The cloud service has continued to evolve by providing optimized technologies for data processing and storage in response to environmental changes that require miniaturization of devices such as smartphones and advancement of processing work.

Accordingly, cloud service users could have a reasonable cost structure through a usage-based payment structure. However, the cloud service has problems such as server stability, security problems, and response speed.

In particular, in IoT in the industrial field, massive data that needs to be processed and stored are often required to maintain urgency, accuracy, and security. In this case, the current cloud computing technology alone has limitations in data processing.

Accordingly, the concept of fog computing, which extends cloud computing and services to the edge (edge) of the network, was introduced, and the concept of using individual devices (Edge) rather than a centralized network system was introduced more widely.

Edge computing means placing processors and data near the end (end point) rather than sending it to the center (cloud). Edge computing enables data processing from IoT objects directly, so it has the advantage of having a lower computing power than cloud computing, but a faster response speed and no need for broadband communication.

In other words, edge computing is a technology that can immediately analyze data at the end (edge) where data is collected and apply it to the field, ensuring immediacy and stability compared to cloud.

In one embodiment, the user terminal 200 may include a display in at least a portion of the user terminal 200, and may output a guide message and a UI provided from the traffic information providing apparatus 100 through the display. For example, the user terminal 200 may include at least one of a smartphone, a tablet PC, a laptop computer, a desktop, and a display device included in the vehicle infotainment system, but is not limited thereto.

In one embodiment, the external server 30 may be wired or wirelessly connected to the traffic information providing device 100 through the network 40, and various data (eg, event data, sensor data) provided from the traffic information providing device 100 ) Can be saved. In addition, the external server 30 may receive and store guide message data including whether an event occurs, a cause of the event, and guide information according to the event occurrence from the traffic information providing device 100.

In various embodiments, when receiving a request for providing specific information message data from the traffic information providing device 100, the external server 30 may select and provide specific information message data from among a plurality of previously stored information message data. have. For example, the user may output a UI provided from the traffic information providing apparatus 100 through the display of the user terminal 20, and may select a specific area (eg, touch input) through the UI. At this time, the traffic information providing device 100 may request at least one guide message data related to a specific area selected through the UI to the external server 30, and provide at least one guide message data requested from the external server 30 It can be received and provided to the user terminal 20 through the UI. However, it is not limited thereto.

Here, the traffic information providing system shown in FIG. 1 is described in a form in which various data generated by the traffic information providing apparatus 100 are stored in the external server 300, but is not limited thereto, and a separate external server ( 300), it is possible to store various types of data using a storage device provided in the traffic information providing apparatus 100. Hereinafter, the hardware configuration of the traffic information providing apparatus 100 will be described with reference to FIG. 2.

2 is a hardware configuration diagram of a traffic information providing apparatus according to another embodiment of the present invention.

Referring to FIG. 2, a traffic information providing apparatus 100 (hereinafter, “computing apparatus 100”) according to another embodiment of the present invention may include a processor 110 and a memory 120. In various embodiments, the computing device 100 may further include a network interface (or communication interface) (not shown), a storage (not shown), and a bus (not shown).

In one embodiment, the processor 110 may control the overall operation of each component of the computing device 100. The processor 110 may be configured to include a CPU (Central Processing Unit), MPU (Micro Processor Unit), MCU (Micro Controller Unit), or any type of processor well known in the technical field of the present invention.

In various embodiments, the processor 110 may perform an operation on at least one application or program for executing the method according to the embodiments of the present invention. In various embodiments, the processor 110 includes one or more cores (not shown) and a graphic processing unit (not shown), and/or a connection path (eg, a bus) for transmitting and receiving signals with other components. can do.

In various embodiments, the processor 110 temporarily and/or permanently stores a signal (or data) processed inside the processor 110, and a RAM (Random Access Memory, not shown) and a ROM (ROM). -Only Memory, not shown) may further be included. In addition, the processor 110 may be implemented in the form of a system on chip (SoC) including at least one of a graphic processing unit, RAM, and ROM.

In an embodiment, the processor 110 may perform a method (eg, a method of providing traffic information) to be described with respect to FIGS. 3 to 10 by executing one or more instructions stored in the memory 120. For example, the processor 110 executes one or more instructions stored in the memory 120 to output the milestone mark information based on the location of the milestone mark device, and obtains sensor data for a predetermined area from the sensor. , Analyzing sensor data to determine whether an event occurs in a predetermined area, and when an event is detected, an action to determine the cause of the event using sensor data, and the cause and occurrence of the determined event A traffic information providing method including an operation of outputting a guide message including guide information according to a cause may be performed.

In one embodiment, the memory 120 may store various types of data, commands, and/or information. The memory 120 may store programs (one or more instructions) for processing and controlling the processor 110. Programs stored in the memory 120 may be divided into a plurality of modules according to functions.

In various embodiments, steps of a method or algorithm described in connection with an embodiment of the present invention may be implemented directly in hardware, implemented as a software module executed by hardware, or a combination thereof. Software modules include Random Access Memory (RAM), Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), Flash Memory, hard disk, removable disk, CD-ROM, or It may reside on any type of computer-readable recording medium well known in the art to which the present invention pertains.

Components of the present invention may be implemented as a program (or application) and stored in a medium in order to be executed in combination with a computer that is hardware. Components of the present invention may be implemented as software programming or software elements, and similarly, embodiments include various algorithms implemented with a combination of data structures, processes, routines or other programming elements, including C, C++ , Java, assembler, etc. may be implemented in a programming or scripting language. Functional aspects can be implemented with an algorithm running on one or more processors. Hereinafter, a method of providing traffic information performed by the computing device 100 will be described with reference to FIG. 3.

3 is a diagram showing a form of a traffic information providing system according to an embodiment of the present invention applied to a predetermined area, and FIG. 4 is a flow chart of a traffic information providing method according to another embodiment of the present invention.

3 and 4, in step S110, the computing device 100 may control information output on at least one signpost 200 provided in a predetermined area. For example, the computing device 100 may control to output the milestone sign information on at least one signpost 200 provided in a predetermined area.

In various embodiments, the computing device 100 includes the milestone signing device 100 so that signpost information indicating the location is output on the display of the signpost 200 based on the location of the at least one signpost 200. Can be controlled. Hereinafter, the signpost 200 and the IoT gateway 300 will be described with reference to FIGS. 5 and 6.

5 is a diagram schematically illustrating a signpost device applicable to various embodiments.

Referring to FIG. 5, in various embodiments, the signpost 200 may include a display 210, and receive driving power from a power source 220 and display signpost information through the display 210. May be output, or a guide message provided from the computing device 100 (eg, slow accident, slow freezing, slow strong wind, slow rainfall, slow snow, etc.). For example, the display 210 includes a plurality of Light-Emitting Diodes (LEDs), and controls the output of the LEDs to output information on signposts or a guide message text provided from the computing device 100. have. However, it is not limited thereto.

In various embodiments, the signage device 200 may include a communication module 230, and another signage device, a sensor 300, and another signage device disposed adjacent to the signage device 200 through the communication module It may be connected to the IoT gateway (for example, 400 in FIG. 6) wired or wirelessly. For example, the signpost 200 may perform data transmission/reception with another signpost device, a sensor 300, and an IoT gateway disposed in a position adjacent to the signpost 200 using Zigbee. have. However, it is not limited thereto.

In various embodiments, the signpost device 200 may include a radar sensor 240 (eg, a Doppler Speed Rader sensor, a Houston Radar sensor), and the radar sensor 240 Using this, it is possible to detect vehicle driving and congestion, or to detect vehicle speed.

In various embodiments, the signpost device 200 may include a control module 250. For example, the signpost 200 may include an MCU/TPU module that controls various components included in the signpost 200. However, it is not limited thereto.

The control module 250 includes a wireless communication module (eg, Giga-ethernet port and WiFi) for communication with a relay server such as an IoT edge dedicated chip for edge computing, an IoT gateway, and the like. can do.

In addition, the control module 250 may control the operation of the communication module 230 to control communication between the milestone signing device 200 and other signposts adjacent to the signpost 200, and the display included in the signpost 200 210) can be controlled to be changed.

6 is a diagram schematically illustrating an IoT gateway applicable to various embodiments.

Referring to FIG. 6, in various embodiments, the IoT gateway 400 may include a variable speed indicator 410. The variable speed indicator 410 includes a first area 411 that outputs a prescribed speed of a road on which the IoT gateway 400 is installed, and a second area 412 that outputs a speed of a vehicle traveling on the road on which the IoT gateway 400 is installed. ) Can be included. However, it is not limited thereto.

In various embodiments, the IoT gateway 400 may include a power module 420. For example, the IoT gateway 400 may include a solar power module. At this time, the IoT gateway 400 further includes an AC-DC converter for changing the AC voltage to a DC voltage in order to use the AC input voltage generated by the solar power module converting sunlight as a power source. can do. However, it is not limited thereto.

In various embodiments, the IoT gateway 400 may include a wind speed and weather vane 320, a lightning rod 330, and a rain and red design 340.

In various embodiments, the IoT gateway 400 may include a radar sensor (eg, Doppler Speed Rader sensor, Houston Radar sensor), and vehicle driving and congestion conditions using a radar sensor. Or detect the vehicle's speed.

In various embodiments, the IoT gateway 400 may include a communication module, and provides sensor data provided from the sensor 300 to the computing device 100 through the communication module, or a guide provided from the computing device 100 A message may be provided to the milestone mark device 200. For example, the IoT gateway 400 may be communicatively connected with the computing device 100 using ZigBee. However, it is not limited thereto.

In various embodiments, the IoT gateway 400 may be wired or wirelessly connected to the signpost 200 and the sensor 300 provided in a predetermined area.

In various embodiments, the IoT gateway 400 may include a control module. For example, the IoT gateway 400 may include an MCU/TPU module that controls various components included in the IoT gateway 400. However, it is not limited thereto.

The control module includes a wireless communication module (e.g., Giga-ethernet port and Wi-Fi) for communication with a relay server such as an IoT edge dedicated chip for edge computing and an IoT gateway. I can.

In addition, the control module may control the operation of the communication module to control communication with the IoT gateway 400 and the adjacent signpost 200, and output through the display 210 included in the signpost 200. You can control the information to change.

Referring back to FIGS. 3 and 4, in step S120, the computing device 100 may obtain sensor data for a predetermined area from the sensor 300. For example, the computing device 100 may receive sensor data detected from the sensor 300 through the IoT gateway 400. However, it is not limited thereto.

Here, the sensor 300 may include at least one of a temperature sensor, a vibration sensor, a gyro sensor, a wind speed sensor, a rain and snow sensor, an air temperature sensor, and an atmospheric humidity sensor. Preferably, in order to derive more accurate result values by collecting various information on a predetermined area, various types of sensors may be integrated into one module. Hereinafter, a sensor 300 applicable in various embodiments will be described with reference to FIG. 7.

7 is a hardware configuration diagram of a sensor applicable to various embodiments.

Referring to FIG. 7, in various embodiments, the sensor 300 may include a housing provided with a space therein, one or more sensors installed inside and outside the housing, and a cable for outputting and transmitting sensor information to the outside. Here, the sensor 300 is illustrated in a cylindrical shape, but is not limited thereto, and may be formed in various shapes according to components included inside and outside the sensor 300 and an installation environment.

In various embodiments, the housing may be composed of an upper housing 310 and a lower housing 320, and may be combined into a single housing by being combined using a coupling means 330.

In various embodiments, the upper housing 310 and the lower housing 320 are coupled to each other, but a space in which one or more sensors may be disposed may be provided inside the coupled housing. In this case, the sensor 300 may further include a waterproof ring 360 to prevent moisture from penetrating into the space provided inside the housing.

In various embodiments, the sensor 300 is installed under the surface of the road, and using a temperature sensor (eg, an internal temperature sensor 340, an external temperature sensor 350) provided inside and outside the sensor 300 You can measure the sensor data related to the temperature of. However, it is not limited thereto.

In various embodiments, the sensor 300 includes an internal temperature sensor 340 and an upper housing 310 disposed on the rear surface of the upper housing 310 (a surface facing the lower housing 320 of the upper housing 310). It may include an external temperature sensor 350 inserted into the insertion groove formed in at least a portion of the upper surface.

In various embodiments, the sensor 300 may transmit sensor data sensed from two temperature sensors (internal temperature sensor 340 and external temperature sensor 350) to the outside. To this end, the sensor 300 may include a cable that transmits sensor data sensed from the external temperature sensor 350 and sensor data sensed from the internal temperature sensor 340 to the outside.

In various embodiments, the sensor 300 may include a connection hose pipe 370 that wraps and protects the cable, and the cable is connected to the signpost 200 and the IoT gateway 400 along the connection hose pipe 160. Can be wired.

In various embodiments, the sensor 300 is disposed in a space provided inside the housing, and may include a substrate 380 including an additional sensor. For example, the sensor 300 is a space provided inside the housing with a substrate 380 including a motion detection sensor (eg, a vibration sensor, a gyro sensor, a compass sensor, an acceleration sensor, etc.) that detects the movement of the sensor 300 Can be placed on

In various embodiments, the sensor 300 may obtain information on a road, a bridge, and a vehicle driving the same by using a motion detection sensor, and according to an embodiment, the information collected from the two temperature sensors as described above is Together, it is possible to obtain road icing conditions and additional information related thereto.

In various embodiments, the sensor 300 may determine the location of the vehicle based on the intensity of the vibration. For example, as the vibration is stronger, it may be determined that the vehicle is closer to the sensor 300, and accordingly, a moving direction or movement of the vehicle may be determined based on an increase or decrease in vibration.

In various embodiments, the sensor 300 may acquire additional information based on a pattern or change as well as an intensity of vibration. For example, the sensor 300 may determine whether or not the road is icing and the degree of freezing based on the intensity of the vibration. For example, when the intensity of vibration detected by the sensor 300 gradually increases, it may be determined that the vehicle is approaching. In this case, the intensity of vibration may be detected in inverse proportion to the distance between the vehicle and the sensor 300. At this time, if the maximum value of the detected vibration intensity is less than the reference value (e.g., the average value of the vibration intensity detected when an event is not detected), the tire slightly slips due to freezing, and accordingly, the vibration It can be determined that it has decreased.

In various embodiments, the computing device 100 may set an operation state of each of a plurality of sensors included in the sensor 300 according to whether the occurrence of an event is detected, and may selectively obtain sensor data according to the set operation state. have. For example, the plurality of sensors 300 may include a first sensor (eg, a lidar sensor) and a second sensor (eg, a temperature sensor), and the computing device 100 may not detect the occurrence of an event. In this case, only the first sensor data may be obtained from the first sensor by setting the state of the first sensor to the operating state and the state of the second sensor to the power saving state. Thereafter, when the generator of the event is detected, the computing device 100 maintains the state of the first sensor and changes the state of the second sensor from the power saving state to the operating state. Sensor data and second sensor data can be obtained. However, it is not limited thereto.

Referring back to FIGS. 3 and 4, in step S130, the computing device 100 may determine whether an event occurs within a predetermined area by analyzing sensor data obtained in step S120.

In various embodiments, when the computing device 100 maintains a state in which the average driving speed of the vehicle is reduced to less than a preset reference speed within a predetermined area for a predetermined time, it is determined that an event has occurred in the predetermined area. can do.

In various embodiments, when the pattern of sensor data is an event occurrence pattern (eg, when the pattern of standing data has a pattern that appears when an event occurs), the computing device 100 generates an event within a predetermined area. It can be judged as. However, the present invention is not limited thereto, and various methods for determining whether an event occurs may be applied.

In step S140, when the occurrence of an event is detected through step S130, the computing device 100 may determine the cause of the event.

In various embodiments, the computing device 100 uses temperature data detected from the sensor 300 (eg, external temperature data detected from an external temperature sensor and internal temperature data detected from an internal temperature sensor) to freeze the road surface. You can judge whether or not. For example, when the sensor 300 includes an external temperature sensor disposed outside the housing and an internal temperature sensor disposed inside the housing, and the occurrence of an event is detected through step S130, the computing device 100 Based on the temperature data (external temperature data and internal temperature data) and changes in the two temperature data, it is possible to determine whether the road surface is frozen.

In various embodiments, the computing device 100 may extract one or more parameters from two temperature data, and determine whether the road surface is frozen using the extracted one or more parameters and a previously learned learning model.

Here, the pre-learned learning model includes external temperature data detected from the external temperature sensor, internal temperature data detected from the internal temperature sensor, and data on whether the road surface is frozen at the time when the external temperature data and internal temperature data are detected. It can mean a model learned as learning data. However, it is not limited thereto.

In various embodiments, the computing device 100 may determine whether an accident has occurred by using lidar sensor data detected from the sensor data 300. For example, when the sensor 300 includes a lidar sensor and the occurrence of an event is detected through step S130, the occurrence of an accident in a predetermined area is detected using the lidar sensor data detected from the lidar sensor. Whether and where the accident occurred can be determined.

In various embodiments, the computing device 100 may analyze sensor data to determine the type and grade of the cause of the event. For example, the computing device 100 determines whether the road surface is frozen based on two temperature data (external temperature data and internal temperature data) measured from the sensor 300 and changes in the two temperature data, Depending on the degree of icing, you can set the level (e.g., freeze caution level, freeze warning level, freeze risk level, etc.).

In step S150, the computing device 100 may output a guide message including the cause of the event determined in step S140 and guide information according to the cause of the occurrence. For example, the computing device 100 includes a milestone display device 200 disposed in a predetermined area, a user terminal 20 located within a preset range based on a location where the occurrence of an event is detected, and an infotainment system of a vehicle. By providing a guide message to at least one, the guide message is output on the display included in the signpost 200, the guide message is output on the display included in the user terminal 20, or included in the infotainment system of the vehicle A guide message can be displayed on the displayed display device (eg, navigation). However, it is not limited thereto.

In various embodiments, the computing device 100 may output different guide messages according to the type of the cause of the event determined in step S140.

In various embodiments, when the cause of the event determined in step S140 is ice on the road surface, the computing device 100 may provide a guide message for guiding the slow driving of the vehicle according to whether or not the road surface is frozen. Can be output (eg, Fig. 8(a)).

In various embodiments, when the cause of the event determined in step S140 is the occurrence of an accident, the computing device 100 may provide a guide message for guiding a slow driving of the vehicle or a change in lane according to the occurrence of the accident and the occurrence of the accident. Can be output (for example, Fig. 8(b)).

In various embodiments, the computing device 100 may determine an output method of the guide message according to the type of the cause of the event. For example, the computing device 100 may set different colors of the guide message text output according to the type of the cause of the event (eg, the occurrence of an accident and ice on the road surface) (eg, the ice on the road surface). You can set the guidance message according to the following to blue and the guidance message according to the occurrence of an accident to red).

In various embodiments, the computing device 100 may determine an output method of the guide message according to the level of the cause of the event. For example, when the ice information on the road surface is a level of ice caution, the computing device 100 may output only a guide message for guiding whether the road surface is frozen and the vehicle is driven slowly. In addition, when the ice information on the road surface is an ice warning level, the computing device 100 increases the size of an area in which a guide message for guiding whether the road surface is frozen and the slow driving of the vehicle is output, and the output guide message is You can make it flicker. In addition, when the ice information on the road surface is a level of the risk of freezing, the computing device 100 may output a guide message and sound for guiding whether the road surface is frozen and the slow driving of the vehicle. However, it is not limited thereto.

In various embodiments, the computing device 100 outputs a guide message including the cause of the event and guide information according to the cause of the event on the display of the signpost 200 disposed in a predetermined area, but is previously output It is possible to change the information on the signpost that is being made into a guide message and print it out. At this time, the computing device 100 may maintain a guide message output state until an event is not detected within a predetermined area, and when an event is not detected, the information message being output may be changed into milestone marker information and output. have.

In one embodiment, the computing device 100 outputs a guide message including the cause of the event and guide information according to the cause of the event on the display of the signpost 200 disposed in a predetermined area, but is previously output It is possible to adjust the output format of the guide message according to the information on the signpost being made.

For example, in a position where the signpost information “124.6” should be displayed as shown in FIG. 5, and when the information “freezing delay deceleration” is displayed as shown in FIG. 8, while the information is displayed It may be difficult to identify the signpost of the location.

In particular, in the case of a vehicle with a built-in autonomous driving system or an image analysis-based driving guidance system, it is possible to determine the position of the vehicle by recognizing a signpost while driving, and even when providing specific event information, a system built into the vehicle is provided. In addition to the event information, it is necessary to set the display method so that signpost information can be recognized at the same time.

However, when simply displaying the event information and the signpost information at the same time, the readability of the information may be degraded, and there may be a problem in that a display having a high resolution must be provided in order to increase the readability.

In one embodiment, the display method of the signpost information is a method of displaying an initial three-digit number (e.g., 124) according to a location, and then sequentially displaying a number of units below the decimal point (e.g., 124.2, 124.4, 124.6, 124.8). ) May be applied. In this case, the number of characters for displaying event information may be adjusted according to the number of digits below the decimal point of the signpost information displayed at each location.

For example, "Ice" for position 124.2. In the case of 124.4 position, "Ice Deceleration", in the case of 124.6 position, "Ice Deceleration", in the case of 124.8 position, "Beware of freezing delay deceleration". An automated system can help locate the vehicle.

In another embodiment, as described above, the signpost information may be composed of four numbers, but is not limited thereto. For convenience of explanation, when describing a case consisting of four numbers, when the displayed event information is less than four characters, the event information by adding general warning phrases such as "Caution" or "Warning" You can correct the number of characters to 4 or more.

Through this, the number of characters of the displayed event information is 4 or more, and the computing device 100 may express a number through a branch (-) or phosphor (-) component of a vowel included in the displayed four characters. In the case that a letter contains both the Ji (ㅡ) and In (ㅣ) components, a number can be expressed using a longer component.

For example, the computing device 100 may represent a number by turning off LEDs as many as the number to be expressed with respect to a component to which a number is to be expressed.

For example, in the case of "freezing delay", a number can be expressed by utilizing the phosphorus (ㅣ) component of all four letters, and when a 124.6 number is to be expressed, an LED that displays the phosphorus (ㅣ) component of "grain" One of the LEDs is turned off, two of the LEDs that indicate the phosphorus component of "Bing" are turned off, 4 of the LEDs that indicate the phosphorus component of "G" are turned off, and A number can be expressed by turning off six of the LEDs that display the phosphorous (ㅣ) component of, but is not limited thereto.

In various embodiments, the computing device 100 may provide the user terminal 20 with a UI that visualizes and outputs analysis result data generated by analyzing sensor data with big data. For example, as shown in FIGS. 9 and 10, the event occurrence detection data and event occurrence cause analysis data generated by analyzing sensor data and sensor data for a predetermined area are visualized, and various visualized data are By configuring and providing a screen, there is an advantage in that it is possible to provide a UI that enables a user to effectively monitor road conditions for a predetermined area.

The above-described method of providing traffic information has been described with reference to the flowchart shown in the drawings. For the sake of simplicity, the method of providing traffic information has been described by showing a series of blocks, but the present invention is not limited to the order of the blocks, and some blocks are performed in an order different from those shown and described in this specification, or performed simultaneously. Can be. In addition, a new block not described in the specification and drawings may be added, or some blocks may be deleted or changed.

In the above, embodiments of the present invention have been described with reference to the accompanying drawings, but those of ordinary skill in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features. You can understand. Therefore, the embodiments described above are illustrative in all respects, and should be understood as non-limiting.

100: traffic information providing device (computing device)
200: signpost device
300: sensor
400: IoT gateway

Claims (10)

In the method performed by the computing device,
Outputting signpost information indicating a position of the signpost device through a display provided in the signpost device based on the location of the signpost device provided in a predetermined area;
Obtaining sensor data for a predetermined area from the sensor;
Analyzing the sensor data to determine whether an event has occurred in the predetermined area;
When the occurrence of the event is detected, determining a cause of the event using the sensor data; And
And outputting a guide message including a cause of the determined event and guide information according to the cause of occurrence through a display provided in the signpost device,
The step of outputting the guide message,
Outputting milestone sign information indicating a location of the signpost device when the occurrence of the event is not detected; And
When the occurrence of the event is detected, the milestone sign information indicating the location information of the signpost device and the guide message are output together, but the guide message is output according to the signpost information previously output through the display of the signpost device. Including the step of adjusting the shape,
Traffic information provision method using smart LED signpost. The method of claim 1,
The step of determining whether the event has occurred,
At least one of a case in which the average driving speed of the vehicle in the predetermined area is reduced to a preset reference speed or less for a predetermined period of time, and a pattern in which the sensor data has a pattern that appears when the event occurs. Comprising the step of determining that the event has occurred in response to being one,
Traffic information provision method using smart LED signpost. The method of claim 1,
The sensor includes a first sensor and a second sensor,
The step of obtaining the sensor data,
When the occurrence of the event is not detected, setting a state of the first sensor to an operating state and a state of the second sensor to a power saving state to obtain only the first sensor data from the first sensor; And
When the occurrence of the event is detected, the state of the first sensor is maintained in the operating state, and the state of the second sensor is changed from the power saving state to the operating state, and the first sensor and the second sensor are Including the step of obtaining 1 sensor data and second sensor data,
Traffic information provision method using smart LED signpost. The method of claim 1,
The sensor includes an external temperature sensor disposed outside the housing of the sensor and an internal temperature sensor disposed inside the housing,
The step of determining the cause of the event,
When the occurrence of the event is detected, determining whether the road surface is frozen using external temperature data sensed from the external temperature sensor and internal temperature data sensed from the internal temperature sensor,
The step of outputting the guide message,
Including the step of outputting a guide message for guiding the slow driving of the vehicle according to whether the road surface is frozen and the road surface is frozen,
Traffic information provision method using smart LED signpost. The method of claim 1,
The sensor includes a lidar sensor,
The step of determining the cause of the event,
When the occurrence of the event is detected, determining whether an accident has occurred in the predetermined area by using the lidar sensor data detected by the lidar sensor,
The step of outputting the guide message,
Including the step of outputting a guide message guiding whether or not the accident has occurred and a guide message for guiding a slow driving of the vehicle or a lane change according to the occurrence of the accident,
Traffic information provision method using smart LED signpost. The method of claim 1,
The step of determining the cause of the event,
Analyzing the sensor data to determine the type and risk level of the cause of the event,
The step of outputting the guide message,
Including the step of determining an output method of the guide message according to the type and grade of the cause of the event,
Traffic information provision method using smart LED signpost. The method of claim 1,
The step of outputting the guide message,
The guide message is provided to at least one of a milestone display device disposed in the predetermined area and having a display in at least a portion, a user terminal located within a preset range based on a location where the occurrence of the event is detected, and an infotainment system of the vehicle. Including the step of,
Traffic information provision method using smart LED signpost. The method of claim 1,
Further comprising providing a user interface (UI) for visualizing and outputting analysis result data generated by analyzing the sensor data with big data,
Traffic information provision method using smart LED signpost. A memory for storing one or more instructions; And
And a processor that executes the one or more instructions stored in the memory,
The processor executes the one or more instructions,
An apparatus for performing the method of claim 1. A computer program combined with a computer as hardware and stored in a recording medium readable by a computer to perform the method of claim 1.

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