KR20210032758A - System and method for providing traffic safty based on traffic flow information in a tunnel - Google Patents

Abstract

According to one embodiment of the present disclosure, provided is a traffic safety providing system based on traffic flow information. The system includes: a plurality of wireless communication repeaters installed inside the tunnel to transmit and receive wireless signals; a user terminal determining a vehicle location based on the wireless signal received from the plurality of wireless communication repeaters; and a control server generating accident prevention or traffic safety information based on the vehicle location information received from the user terminal and transmitting the generated information to a roadside device.

Description

Traffic safety provision system and method based on traffic flow information in a tunnel {SYSTEM AND METHOD FOR PROVIDING TRAFFIC SAFTY BASED ON TRAFFIC FLOW INFORMATION IN A TUNNEL}

The present disclosure is a system for providing traffic safety based on traffic flow information in a tunnel, and more specifically, a system that determines and transmits traffic conditions in a tunnel in real time, and provides a user with an accident prevention and safe driving guidance service based on this, and It's about the method.

Recently, an Intelligent Transport System (ITS) has been introduced to promote efficient road traffic and driver safety and convenience. The technology used in ITS is an advanced traffic management system (ATMS) that analyzes traffic conditions in real time by detecting traffic information such as vehicle characteristics and speed on the road, route selection, estimated travel time, congestion and bottlenecks. ATIS (Advanced Traveler Information System) that provides information such as sections to the driver, sensors and control devices for traffic conditions and obstacle recognition on vehicles are attached to automate driving, and intelligent transportation facilities are installed on the road. It includes the Advanced Vehicle and Highway System (AVHS), which is installed to improve traffic accident prevention and road traffic.

In such ITS, road electronic signs (VMS: Variable Message Sign) are installed for each section of the road to reduce the risk of accidents and to ensure smooth vehicle flow. It provides real-time information about control, etc. In particular, by providing direct information on the direction the driver is traveling on the road, it improves the driver's convenience, driving stability, and traffic efficiency. In addition, roadside units (RSUs) are installed around roads to detect road conditions and traffic congestion. These devices provide basic data that enables the ITS to operate an efficient traffic system by detecting road conditions, ambient temperature and atmospheric conditions, traffic congestion, and the like using sensors and communication devices.

Meanwhile, a location based service (LBS) among wireless Internet services using a mobile communication terminal is also used in the ITS field. The location-based service refers to a communication service that identifies the location of a mobile communication terminal such as a mobile phone and a personal digital assistant (PDA), and provides additional information related to the identified location. Location measurement technology for providing location-based services is a network-based method and a mobile communication terminal that checks the location by software using the radio wave environment, which is the cell radius of the base station of the mobile communication network, in order to measure the location of the mobile communication terminal. It is classified into a handset-based method using a GPS (Global Positioning System) receiver installed in the device, and a hybrid method that combines these two methods.

However, since it is difficult to observe the inside of the tunnel from the outside and communication with the outside is not smooth, it may be difficult to provide a location-based service and it may be difficult to obtain traffic situation information in real time. The traffic conditions inside the tunnel can be acquired through expensive sensors, or the control personnel can be directly input to the site and detected by a phone call to report traffic accidents from the vehicle driver.

Therefore, it is difficult to share traffic situation information inside the tunnel in real time, and when an accident occurs in the tunnel, there is a problem in that it takes a long time to respond because the delivery of traffic information to the driver is delayed.

The present invention was conceived to solve the traffic safety problem inside the existing tunnel, and by installing a wireless communication repeater (for example, a wireless communication repeater (wireless access point)) inside the tunnel, traffic condition information and vehicle information are real-time. The purpose is to provide accident prevention and safe driving guidance services to drivers by collecting and transmitting them to the control server to analyze the traffic conditions in the tunnel.

A traffic safety providing system based on traffic flow information according to an embodiment of the present disclosure includes a plurality of wireless communication repeaters installed inside a tunnel to transmit and receive wireless signals, and a vehicle based on wireless signals received from the plurality of wireless communication repeaters. A user terminal for determining a location, and a control server for generating accident prevention or traffic safety information based on the vehicle location information received from the user terminal and transmitting it to a roadside apparatus.

According to various embodiments of the present disclosure, the user terminal determines the location of the vehicle based on wireless signals received from wireless communication relay devices installed in the tunnel through which the vehicle passes, thereby providing an expensive traffic flow detection device in the tunnel. Traffic flow conditions in the tunnel can be checked in real time without the need for installation.

In addition, according to embodiments of the present disclosure, the control server displays traffic safety and accident information through the roadside device installed at the tunnel entrance based on the position of the vehicle determined by the user terminal, thereby quickly and efficiently entering the tunnel. Traffic stability information can be provided to vehicles.

The effects of the present disclosure 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 description of the claims.

Embodiments of the present disclosure will be described with reference to the accompanying drawings described below, in which like reference numerals denote like elements, but are not limited thereto.
1 is a schematic diagram of a system for providing traffic safety based on traffic flow information in a tunnel according to an embodiment of the present disclosure.
2 is a flowchart of a method for providing traffic safety based on traffic flow information in a tunnel according to an embodiment of the present disclosure.

Hereinafter, with reference to the accompanying drawings, specific details for the implementation of the present disclosure will be described in detail. However, in the following description, when there is a possibility that the subject matter of the present disclosure may be unnecessarily obscure, detailed descriptions of widely known functions or configurations will be omitted.

In the accompanying drawings, the same or corresponding elements are denoted with the same reference numerals. In addition, in the description of the following embodiments, overlapping descriptions of the same or corresponding components may be omitted. However, even if description of a component is omitted, it is not intended that such component is not included in any embodiment.

In the present disclosure, a "wireless communication repeater" may mean a device that performs a function of relaying or distributing a transmission of a wireless signal in order to provide wireless data communication between user terminals or user terminals. For example, a wireless communication repeater is a wireless device such as a user terminal or a user terminal by using a Wi-Fi signal such as a "wireless communication repeater (access point)" or a "wireless access point (W wireless communication repeater)" It may refer to a device that allows them to connect to a wireless data communication network through a base station.

1 is a schematic diagram of a system 100 for providing traffic safety based on traffic flow information in a tunnel according to an embodiment of the present disclosure. The system 100 illustrated in FIG. 1 may collect various traffic flow information from one or more vehicles 110 traveling on a road and/or a user terminal or a user terminal 120 installed in the vehicle 110. Here, the traffic flow information means information required to operate the safe driving induction system 100 based on traffic flow information in the tunnel of the present disclosure. For example, the traffic flow information may include the location and speed of the vehicle, information about the surrounding situation of the vehicle (eg, image or sound information indicating the road condition around the vehicle, temperature or weather information, etc.), but Not limited.

The user terminal 120 may be a computing device including one or more sensors or communication devices capable of collecting traffic-related data, and a processor capable of processing various operations on traffic-related data. In one example, the user terminal 120 may be any one of various computing devices including a smart phone, a tablet computer, a wearable computer, a navigation device, a black box device, and a digital travel recorder (DTG), but is limited thereto. It doesn't work. In addition, the user terminal 120 includes various vehicle sensors (e.g., speed sensors, position sensors, distance sensors, cameras, microphones, etc.), vehicle sensors capable of collecting traffic-related data of the vehicle 110 itself or its surroundings. Various traffic-related data can be collected by interlocking with an after-market device such as an on board unit (OBU), a navigation device, or a black box device capable of processing various operations based on data from the data.

The wireless communication repeater 140 may transmit a wireless signal or a wireless data signal to one or more vehicles 110 or user terminals 120 traveling in a tunnel. The wireless signal transmitted from the wireless communication repeater 140 may include an identifier (ID) of the repeater 140, location information of the repeater 140, and the like. In addition, the vehicle 110 or the user terminal 120 may detect the strength and direction of a wireless signal received from the wireless communication repeater 140. Accordingly, the vehicle 110 or the user terminal 120 may determine the location of the vehicle 110 or the user terminal 120 based on various information included in the received wireless signal. In addition, the vehicle 110 or the user terminal 120 may calculate various traffic flow information including a moving speed and a moving trajectory of the vehicle 110 based on the determined position. To determine the location of the vehicle 110 or the user terminal 120 based on various information included in the wireless signal received by the vehicle 110 or the user terminal 120, ToA (time of arrival), TDoA (time Any one of various location detection methods such as difference of arrival), angle of arrival (AoA), received signal strength indicator (RSSI), and trilateration/triangulation may be used.

The traffic safety information collected or calculated by the vehicle 110 or the user terminal 120 may be transmitted to the traffic control server 160 through the repeater 140 and/or the wireless base station 150. The control server 160 may provide accident prevention and safe driving information to the user terminal 120 or the roadside device 130 based on traffic safety information in the tunnel. In an embodiment of the present disclosure, the control server 160 may provide text, voice notification, etc. regarding accident prevention and safe driving to the user terminal 120. In another embodiment of the present disclosure, the control server 160 may be configured to transmit and display road traffic information and accident conditions in the tunnel to the roadside device 130 installed around the road at the entrance of the tunnel. Accordingly, it is possible to induce safe driving by allowing vehicles entering the tunnel to determine the traffic conditions in the tunnel in advance through traffic information displayed on the roadside apparatus 130 or the like.

2 is a flowchart of a method for providing traffic safety based on traffic flow information in a tunnel according to the present disclosure. In the method for providing traffic safety based on traffic flow information in a tunnel according to an embodiment of the present invention, when passing through a tunnel in which a wireless communication repeater is installed, a vehicle or a user terminal running in the tunnel is a wireless signal or wireless data from the wireless communication repeater. It may be initiated with the step of transmitting and receiving a signal (S210). The user terminal may determine the location of the vehicle based on the strength and direction of the wireless signal and various information included in the wireless signal (S220).

Next, a step (S230) of collecting traffic flow information may be performed by the user terminal. Traffic flow information may be collected from various sensors (for example, speed sensors, position sensors, distance sensors, cameras, microphones, etc.) that may collect traffic-related data on or around the vehicle itself, and Speed and surrounding situation information of the vehicle (eg, image or sound information indicating a road condition around the vehicle, temperature or weather information, etc.), but is not limited thereto.

Traffic safety information is calculated based on the collected vehicle location information and traffic flow information (S240). Calculation of traffic safety information may be performed by a user terminal or a traffic control server. The collected vehicle location information and traffic flow information may be transmitted to a traffic control server through a repeater and/or a wireless base station. In one embodiment, the "control server" is a server that provides a driver's safe driving and guidance service, and may refer to a server operated by a traffic-related organization such as the Ministry of Land, Infrastructure and Transport, Korea Highway Corporation, and Korea Road Traffic Authority. have. The control server not only collects traffic safety information in the tunnel, but also processes various location information, traffic information, and CCTV video information collected through big data, IoT, and GIS/LBS solutions to provide real-time control services for on-site information. have. In addition, it provides an efficient and safe city management system by immediately notifying and responding to real-time roads and signals, accidents, and emergency situations.

Next, the control server may provide accident prevention and safe driving information to a user terminal or a roadside device (S250). In one embodiment of the present disclosure, the control server may provide text, voice notification, etc. regarding accident prevention and safe driving to the user terminal. In another embodiment of the present disclosure, the control server may be configured to transmit and display road traffic information and accident conditions in the tunnel to roadside devices installed around the road at the entrance of the tunnel. Accordingly, it is possible to induce safe driving by allowing vehicles entering the tunnel to determine the traffic conditions in the tunnel in advance through traffic information displayed on the roadside device.

According to the above-described embodiments, traffic safety information is calculated based on traffic safety information calculated through a user terminal or a wireless communication repeater, and based on this, traffic situation information and accident prevention and safe driving guidance services are provided to the driver. I can.

Preferred embodiments of the present invention described above are disclosed for the purpose of illustration, and those skilled in the art with ordinary knowledge of the present invention will be able to make various modifications, changes and additions within the spirit and scope of the present invention, and such modifications, changes and additions It should be seen as falling within the scope of the above claims.

If a person of ordinary skill in the art to which the present invention pertains, various substitutions, modifications and changes are possible within the scope of the technical spirit of the present invention, so that the present invention is described in the above-described embodiments and the accompanying drawings. Is not limited by.

110: vehicle 120: user terminal
130: roadside device
140: repeater 150: wireless base station
160: control server

Claims (2)

In the traffic safety provision system based on traffic flow information in the tunnel,
A plurality of wireless communication repeaters installed inside the tunnel to transmit and receive wireless signals;
A user terminal determining a vehicle location based on wireless signals received from the plurality of wireless communication repeaters; And
A system comprising a control server for generating accident prevention or traffic safety information based on the vehicle location information received from the user terminal and transmitting it to a roadside device
In a method of providing traffic safety based on traffic flow information in a tunnel,
Transmitting and receiving a radio signal by being installed inside a tunnel by a plurality of radio communication repeaters;
Determining, by a user terminal, a vehicle location based on wireless signals received from the plurality of wireless communication repeaters; And
A method comprising the step of generating, by a control server, accident prevention or traffic safety information based on the vehicle location information received from the user terminal, and transmitting it to a roadside device.

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