KR20020028577A - a communication system for delivery of information to vehicles - Google Patents
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- G—PHYSICS
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
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Abstract
Description
본 발명은 차량용 정보전달 시스템에 관한 것으로, 특히 지하철이나 기차 또는 버스 등의 차량 내부에 설치된 단말기를 통해 승객에게 고화질의 동영상 정보를 제공하는 차량용 정보전달 시스템에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle information delivery system, and more particularly, to a vehicle information delivery system that provides high quality video information to a passenger through a terminal installed inside a vehicle such as a subway, a train, or a bus.
일반적으로 지하철은 하루 일천만명이 넘는 승객이 이용하는 대표적인 대중교통수단으로, 도로의 교통체증이 심화됨에 따라 그 이용객수도 점차 증가하는 추세에 있다. 이에따라, 새로운 지하철 노선이 추가 건설되고 있으며 이용객의 편의를 위해 지하철 역사의 내부환경을 개선하거나 장애인을 위한 시설을 추가하는 등의 서비스 개선도 이루어지고 있다.In general, the subway is a representative public transportation used by more than 10 million passengers a day, the number of passengers is gradually increasing as the traffic jams intensify. Accordingly, new subway lines are being added and services are being improved, such as improving the internal environment of the subway history or adding facilities for the disabled for the convenience of users.
그러나, 상기와 같은 지하철은 그 특성상 대부분의 운행구간이 지하공간으로 이루어져 있음에 따라 이용승객의 대부분이 탑승중에 답답함을 느낀다는 문제점이 있었다. 즉, 어두컴컴한 지하공간에서 운행됨에 따라 대부분의 승객들은 잠을 청하거나 전동차 내부에 부착된 광고물을 쳐다보며 목적지에 도착하기까지 무의미하게 시간을 보내게 된다는 문제점이 있었다.However, such a subway has a problem that most of the passengers feel frustrated while riding, because most of the operation section consists of an underground space. In other words, as the passengers operate in a dark underground space, most passengers have a problem in that they spend time waiting for sleep or looking at advertisements attached to the inside of a train to reach their destination.
이와같은 문제점을 해결하기 위하여 본 출원인은 특허출원 제2000-48022호와 같이 전동차의 내부에 설치된 단말기를 통해 국내외 주요뉴스, 주식정보, 생활정보, 광고 등의 고화질 동영상 정보를 제공하여 승객들이 탑승중에도 다양한 정보를 습득할 수 있도록 구성된 "지하철 전동차용 정보전달 시스템"에 관한 기술을 선출원한 바 있다.In order to solve such a problem, the applicant provides high-quality video information such as domestic and overseas major news, stock information, life information, and advertisements through terminals installed inside the electric vehicle as in Patent Application No. 2000-48022, even when passengers are on board. He has previously filed a technology for the "Information Transmission System for Subway Trains," which is designed to learn various information.
즉, 도 1에 도시된 바와 같이 지하철 역사내에 설치된 중계장치(110)가 인터넷망을 통해 취합, 편집된 동영상 정보신호나 인터넷 방송국에서 제공하는 방송신호를 선택적으로 출력하면 이 신호를 지하철 터널벽 또는 지상의 철도레일을 따라 소정간격으로 설치된 다수의 제1 송수신기(130a∼130n)가 전동차(120a∼120n)로 전송한다.That is, as illustrated in FIG. 1, when the relay device 110 installed in the subway station selectively outputs a video information signal collected and edited through an internet network or a broadcast signal provided by an internet broadcasting station, the signal is output to the subway tunnel wall or the like. A plurality of first transceivers 130a to 130n installed at predetermined intervals along the railroad tracks of the ground transmits to the electric vehicles 120a to 120n.
이와같이 제1 송수신기(130a∼130n)를 통해 전송된 동영상 정보신호 또는 방송신호는 전동차(120a∼120n)의 일측에 부착된 제2 송수신기(140a)를 통해 수신되는데, 이처럼 수신된 신호는 유무선 LAN(Local Area Network)을 통해 접속된 각 전동차의 서버를 통해 단말기로 출력되도록 구성되어 있다.As such, the video information signal or the broadcast signal transmitted through the first transceivers 130a through 130n is received through the second transceiver 140a attached to one side of the electric vehicles 120a through 120n. The received signal is a wired / wireless LAN ( It is configured to be output to the terminal through the server of each train connected via a Local Area Network.
그러나, 상기와 같은 정보전달 시스템은 지하철과 같이 일정한 노선, 즉 레일을 따라 이동하는 차량에는 적용이 가능하나 차선변경이 이루어지는 운행노선이 불규칙한 버스 등에는 적용하기 어렵다는 문제점이 있으며, 아울러 레일을 따라 이동하는 차량이라도 기차와 같이 장거리를 이동하는 차량에 적용하기 위하여 레일을 따라 소정간격으로 송수신기를 설치하기는 사실상 어렵다는 문제점이 있었다.However, the information transmission system as described above may be applied to a vehicle moving along a certain line, that is, a rail, such as a subway, but it is difficult to apply to an irregular bus, etc., in which a lane change is made, and also moves along a rail. Even in a vehicle, it is difficult to install a transceiver at a predetermined interval along a rail in order to apply to a vehicle moving over a long distance such as a train.
이에 본 발명은 상기와 같은 종래의 문제점을 해결하기 위한 것으로, 정차역이나 정류장에 정차한 지하철, 기차, 버스 등의 차량이 소정시간분의 동영상 정보신호를 수신받고 이를 다음 정차역이나 정류장까지 운행하는 과정에서 탑승중인 승객들에게 제공함으로서 저렴한 비용으로 구현이 가능하도록 한 차량용 정보전달 시스템을 제공하는 데 그 목적이 있다.Accordingly, the present invention is to solve the above-described problems, the process of receiving a video information signal for a predetermined time for a subway, train, bus, etc. at a station or stop receives a video information signal of the predetermined time and the operation to the next station or stop The purpose of the present invention is to provide a vehicle information transmission system that can be implemented at low cost by providing to passengers on board.
상기한 목적을 달성하기 위하여 본 발명은 인터넷망을 통해 취합, 편집된 동영상 정보신호를 차량의 내부에 장착된 단말기를 통해 출력하는 차량용 정보전달 시스템에 있어서, 기차, 지하철, 버스 등의 차량이 정차하는 각 정차지에 설치되며 동영상 정보신호를 취합, 편집하는 정보센터로부터 소정분량의 동영상 정보신호를 전송받아 메모리에 저장하고 차량의 도착에 따라 메모리에 저장된 동영상 정보신호를 출력하는 다수의 중계장치와; 차량의 도착을 알리는 도착신호를 수신하여 상기 중계장치로 전송하며, 상기 중계장치에서 출력되는 정보신호를 차량으로 전송하는 정차지에 설치된 제1 송수신기와; 차량의 도착을 알리는 도착신호를 출력하며 상기 제1 송수신로 부터 전송되는 동영상 정보신호를 수신하는 차량에 장착된 제2 송수신기와; 차량의 내부에 장착되며 상기 제2 송수신기를 제어하여 차량의 도착을 알리는 도착신호를 출력하고 상기 제2 송수신기를 통해 수신된 영상 정보신호를 메모리에 저장하며 차량의 운행중 메모리에 저장된 동영상 정보신호를 차량내부에 설치된 단말기를 통해 출력하는 서버를 구비하는 것을 특징으로 하는 차량용 정보전달 시스템을 제공한다.In order to achieve the above object, the present invention provides a vehicle information delivery system for outputting a video information signal collected and edited through an internet network through a terminal mounted inside the vehicle, the vehicle such as a train, subway, bus, etc. And a plurality of relay devices installed at each stop to receive a predetermined amount of video information signals from an information center that collects and edits video information signals, stores them in a memory, and outputs the video information signals stored in the memory upon arrival of the vehicle. ; A first transceiver configured to receive an arrival signal indicating arrival of the vehicle and transmit the received signal to the relay device and to transmit the information signal output from the relay device to the vehicle; A second transceiver mounted on the vehicle to output an arrival signal indicating the arrival of the vehicle and to receive a moving picture information signal transmitted from the first transmission / reception; It is mounted inside the vehicle to control the second transceiver to output the arrival signal indicating the arrival of the vehicle, and stores the video information signal received through the second transceiver in the memory and the video information signal stored in the memory while the vehicle is driving It provides a vehicle information delivery system comprising a server that outputs through a terminal installed therein.
도 1은 종래 차량용 정보전달 시스템을 개략적으로 나타낸 도면,1 is a view schematically showing a conventional vehicle information delivery system,
도 2는 본 발명에 따른 차량용 정보전달 시스템을 개략적으로 나타낸 도면,2 is a view schematically showing a vehicle information delivery system according to the present invention;
도 3은 도2의 차량용 정보전달 시스템에서 동영상 정보신호가 전동차로 전송되는 과정을 나타낸 계통도,3 is a schematic diagram illustrating a process of transmitting a video information signal to an electric vehicle in the vehicle information transmission system of FIG. 2;
도 4는 제1 송수신기 및 제2 송수신기의 내부구성을 나타낸 도면,4 is a view showing the internal configuration of the first transceiver and the second transceiver,
도 5는 송수신기와 차량내 단말기의 접속관계를 나타낸 도면.5 is a diagram illustrating a connection relationship between a transceiver and an in-vehicle terminal.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
10 : 정보센터 20, 20a∼20n : 중계장치10: information center 20, 20a to 20n: relay device
30a∼30n : 전동차 40 : 제1 송수신기30a to 30n: electric vehicle 40: first transceiver
41 : 수신모듈 42 : 송신모듈41: receiving module 42: sending module
50 : 제2 송수신기 51 : 수신모듈50: second transceiver 51: receiving module
52 : 송신모듈 60 : 서버52: transmission module 60: server
61a∼61n : 단말기61a to 61n: terminal
이하 본 발명의 바람직한 일실시예를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도2는 본 발명에 따른 차량용 정보전달 시스템을 개략적으로 나타낸 도면으로, 지하철에 적용된 상태를 나타낸 도면이다.2 is a view schematically showing a vehicle information delivery system according to the present invention, showing a state applied to the subway.
도면에 도시된 것처럼, 지하철의 각 정차역내에는 인터넷망을 통해 취합, 편집된 동영상 정보신호나 인터넷 방송국에서 제공하는 방송신호를 전용선을 통해 정보센터(10)로부터 전송받아 일정시간동안 메모리에 저장한 후, 전동차(30a∼30n)의 도착과 동시에 메모리에 저장된 동영상 정보를 전동차(30a∼30n)로 전송하는 중계장치(20a∼20n)가 설치되어 있다.As shown in the drawing, in each stop of the subway, the video information signal collected and edited through the Internet network or the broadcast signal provided by the Internet broadcasting station is transmitted from the information center 10 through a dedicated line and stored in the memory for a predetermined time. Subsequently, relay devices 20a to 20n are provided for transmitting the moving picture information stored in the memory to the electric cars 30a to 30n upon arrival of the electric cars 30a to 30n.
도3은 도2의 차량용 정보전달 시스템에서 동영상 정보신호가 전동차로 전송되는 과정을 나타낸 계통도이다.3 is a system diagram illustrating a process of transmitting a moving picture information signal to an electric vehicle in the vehicle information delivery system of FIG. 2.
상기된 것처럼, 지하철의 각 정차역내에는 정보센터(10)로 부터 전송되는 동영상 정보신호나 방송신호를 일정시간동안 메모리에 저장하는 중계장치(20)가 설치되어 있는데, 상기 중계장치(20)에서 출력되는 동영상 정보신호는 제1 송수신기(40)를 통해 전동차(30a∼30n)로 무선송출된다.As described above, in each station of the subway, a relay device 20 for storing a video information signal or a broadcast signal transmitted from the information center 10 in a memory for a predetermined time is installed, and in the relay device 20 The output video information signal is wirelessly transmitted to the electric vehicles 30a to 30n through the first transceiver 40.
한편, 전동차의 제어차량(30a)에는 차량의 도착을 알리는 도착신호를 송출하며 상기 제1 송수신기(40)에서 출력되는 동영상 정보신호를 수신하는 제2 송수신기(50)가 설치되어 있다.On the other hand, the control vehicle 30a of the electric vehicle is provided with a second transceiver 50 that transmits an arrival signal indicating the arrival of the vehicle and receives a video information signal output from the first transceiver 40.
또한, 차량내부에는 서버(60)가 설치되어 있는데, 상기 서버(60)는 제2 송수신기(50)를 통해 수신된 동영상 정보신호를 메모리에 저장하였다가 차량이 출발하면 열차내에 설치된 다수의 단말기를 통해 출력한다. 이때 각 전동차간은 유·무선 LAN(Local Area Network)을 통해 서로 연결되어 있으므로 서버(60)에서 전송되는 동영상 정보는 차량내에 설치된 모든 단말기를 통해 출력된다.In addition, a server 60 is installed in the vehicle, and the server 60 stores a video information signal received through the second transceiver 50 in a memory and when the vehicle starts, a plurality of terminals installed in the train. Output through In this case, since each electric vehicle is connected to each other through a wired / wireless LAN (Local Area Network), video information transmitted from the server 60 is output through all terminals installed in the vehicle.
도4는 제1 송수신기 및 제2 송수신기의 내부구성을 나타낸 도면으로, 상기 송수신기(40,50)는 한쌍의 송수신 모듈(41,42 및 51,52)로 구성되어 있으며 적외선 방식을 이용하여 서로 통신하지만, RF(Radio Frequency) 방식을 이용하여 서로 통신하도록 구성할 수도 있다. 이는 당해 기술분야에 통상의 지식을 지닌 자라면 용이하게 적용할 수 있다.4 is a diagram illustrating an internal configuration of a first transceiver and a second transceiver, wherein the transceivers 40 and 50 are constituted by a pair of transmit and receive modules 41, 42 and 51, 52 and communicate with each other using an infrared method. However, it may be configured to communicate with each other using an RF (Radio Frequency) method. This can be easily applied to those skilled in the art.
역사내에 설치되는 제1 송수신 모듈(41,42)은 도3에 도시한 바와 같이 중계장치(20)에 접속되어 있는데, 수신모듈(41)은 차량에 설치된 제2 송수신기(50)에서 전송되는 도착신호를 수신하여 중계장치(20)로 전달하며, 송신모듈(42)은 중계장치(20)에서 출력되는 동영상 정보신호를 제2 송수신기(50)에 전송한다.The first transmission / reception modules 41 and 42 installed in the station are connected to the relay device 20 as shown in FIG. 3, and the reception module 41 is transmitted from the second transceiver 50 installed in the vehicle. The signal is received and transmitted to the relay device 20, and the transmission module 42 transmits the video information signal output from the relay device 20 to the second transceiver 50.
즉, 상기 송신모듈(42)은 방송신호를 850∼900nm의 파장을 갖는 적외선 펄스신호로 변환시켜 차량에 설치된 제2 송수신기(50)로 전송하며, 수신모듈(41)은 제2 송수신기(50)에서 출력되는 차량의 도착신호인 적외선 펄스신호를 수신하여 중계장치(20)로 전달한다.That is, the transmission module 42 converts the broadcast signal into an infrared pulse signal having a wavelength of 850 ~ 900nm and transmits it to the second transceiver 50 installed in the vehicle, the reception module 41 is the second transceiver 50 Receives an infrared pulse signal that is the arrival signal of the vehicle output from the and delivers to the relay device (20).
한편, 전동차의 제어차량에 설치된 제2 송수신 모듈(51,52)은 전동차(30a∼30n)의 내부의 서버(60)에 접속되어 있는데, 송신모듈(52)은 서버(60)의 제어에 따라 차량의 도착을 알리는 도착신호를 제1 송수신기(40)로 출력하며, 수신모듈(51)은 제1 송수신기(40)에서 출력되는 동영상 정보신호를 수신하여 서버(60)로 전달한다.On the other hand, the second transmission / reception modules 51 and 52 installed in the control vehicle of the electric vehicle are connected to the server 60 inside the electric vehicles 30a to 30n, and the transmission module 52 is under the control of the server 60. An arrival signal indicating the arrival of the vehicle is output to the first transceiver 40, and the reception module 51 receives the video information signal output from the first transceiver 40 and transmits the received video information signal to the server 60.
도5는 송수신기와 차량내 단말기의 접속관계를 나타낸 도면으로, 도시된 바와 같이 차량내 서버(60)는 제2 송수신기(50)의 송수신 모듈과 접속되어 있는데, 상기 서버(60)는 제2 송수신기(50)를 통해 전송된 동영상 정보신호를 메모리에 저장하였다가 전동차 출발후부터 다음역 도착시까지 일정시간동안 각각의 단말기(61a∼61n)로 출력하게 된다. 상기 도면에서 미설명부호 62는 송수신기로 전동차의 차량과 차량간의 동영상 정보신호의 송수신이 가능하도록 설치된 것으로 유무선 LAN을 통해 접속된다.5 is a diagram illustrating a connection relationship between a transceiver and an in-vehicle terminal. As shown in FIG. 5, an in-vehicle server 60 is connected to a transmitting / receiving module of a second transceiver 50, and the server 60 is connected to a second transceiver. The moving picture information signal transmitted through 50 is stored in the memory and output to the respective terminals 61a to 61n for a predetermined time from the start of the train to the arrival of the next station. In the drawing, reference numeral 62 is a transceiver installed to enable transmission and reception of a video information signal between a vehicle and a vehicle of an electric vehicle and is connected through a wired or wireless LAN.
즉, 서버(60)에는 유무선 LAN을 통해 접속된 LCD 또는 CRT 모니터와 같은 다수의 단말기(61a∼61n)가 접속되어 있는데, 상기 서버(60)는 이 LAN을 통해 접속된 단말기(61a∼61n)를 통해 수신된 동영상 정보신호를 출력하게 된다.That is, the server 60 is connected to a plurality of terminals 61a to 61n, such as an LCD or a CRT monitor, connected via a wired or wireless LAN. The server 60 is connected to the terminals 61a to 61n via this LAN. Outputs the video information signal received through.
다음에는 상기와 같이 구성된 본 발명에 따른 정보전달 시스템의 동작방법을 상세히 설명한다.Next will be described in detail the operation method of the information delivery system according to the present invention configured as described above.
먼저 정보센터(10)에서 인터넷망을 통해 취합, 편집된 동영상 정보신호나 인터넷 방송국에서 제공하는 국내외 주요뉴스, 주식정보, 생활정보, 광고 등의 방송신호의 일정시간분을 전용선을 통해 중계장치(20)로 전송하면 상기 중계장치(20)는 이를 다운받아 메모리에 저장하게 된다.First, the information center 10 collects and edits a video information signal that is collected and edited through an internet network or a broadcast signal such as domestic and overseas major news, stock information, life information, and advertisement provided by an internet broadcasting station through a relay device ( 20) the relay device 20 downloads it and stores it in the memory.
이와 같이 동영상 정보신호가 메모리에 저장된 상태에서 전동차(30a∼30n)가 역사내에 진입하면 전동차의 제어차량(30a)에 장착된 서버(60)가 제2 송수신기(50)의 송신모듈(52)을 통해 차량의 도착을 알리는 도착신호를 출력하게 된다.When the electric vehicles 30a to 30n enter the station in the state where the moving image information signal is stored in the memory as described above, the server 60 mounted on the control vehicle 30a of the electric vehicle operates the transmission module 52 of the second transceiver 50. Through the arrival signal indicating the arrival of the vehicle is output.
이 도착신호는 제1 송수신기(40)의 수신모듈(41)에 의해 수신되어 중계장치(20)로 전송된다.This arrival signal is received by the receiving module 41 of the first transceiver 40 and transmitted to the relay device 20.
상기와 같이 중계장치(20)로 차량의 도착신호가 인가되면 중계장치(20)는 메모리에 다운로드된 동영상 정보신호를 제1 송수신기(40)의 송신모듈(42)에 전송하게 된다. 즉, 방송신호는 850∼900nm의 파장을 갖는 적외선 펄스신호로 변환되어 전동차(30a∼30n)에 설치된 제2 송수신기(50)로 전송된다.When the arrival signal of the vehicle is applied to the relay device 20 as described above, the relay device 20 transmits the video information signal downloaded to the memory to the transmission module 42 of the first transceiver 40. That is, the broadcast signal is converted into an infrared pulse signal having a wavelength of 850 to 900 nm and transmitted to the second transceiver 50 installed in the electric vehicles 30a to 30n.
상기와 같이 방송신호인 적외선 펄스신호가 제2 송수신기(50)의 수신모듈(51)을 통해 수신되면 서버(60)는 이를 메모리에 저장하고, 차량의 출발과 동시에 LAN을 통해 연결된 각 단말기(61a∼61n)로 출력하여 승객에게 동영상 정보를 제공하게 된다.As described above, when an infrared pulse signal, which is a broadcast signal, is received through the receiving module 51 of the second transceiver 50, the server 60 stores the same in a memory, and each terminal 61a connected through a LAN at the same time as the departure of the vehicle. 61n) to provide the passenger with moving picture information.
차량이 다음 정차역에 도착하면 서버(60)는 상기와 같은 방식을 통해 새로운 동영상 정보신호를 중계장치(20)로부터 다운로드 받으며 이를 차량이 운행중인 동안 단말기(61a∼61n)를 통해 출력하여 탑승자에게 제공하게 된다.When the vehicle arrives at the next stop, the server 60 downloads a new video information signal from the relay device 20 through the above method and outputs it to the passengers through the terminals 61a to 61n while the vehicle is in operation. Done.
상기와 같이 본 발명은 전동차의 내부에 설치된 단말기를 통해 국내외 주요뉴스, 주식정보, 생활정보, 광고 등의 고화질 동영상 정보를 실시간으로 제공함에 따라 승객들은 탑승중에도 다양한 정보를 습득할 수 있으며, 아울러 목적지까지 여행하며 유익한 시간을 가질 수 있다.As described above, the present invention provides real-time high-definition video information such as domestic and overseas major news, stock information, life information, advertisements, etc. through a terminal installed inside the electric vehicle, passengers can acquire a variety of information even while boarding. You can travel and have a good time.
특히, 본 발명에 따른 정보전달 시스템을 기차나 지하철 역사내 또는 버스정류장에 설치하면 차량의 도착과 함께 동영상 정보신호가 차량의 내부에 설치된 서버에 다운로드되어 운행중에 각 단말기를 통해 출력됨에 따라 차선변경이 이루어지는 운행노선이 불규칙한 버스 등에도 적용가능하다는 잇점이 있다.In particular, when the information transmission system according to the present invention is installed in a train or subway station or a bus stop, the video information signal is downloaded to a server installed inside the vehicle with the arrival of the vehicle and the lane is changed as it is output through each terminal during operation. This has the advantage that the running route is also applicable to irregular buses and the like.
본 발명은 도면에 도시된 일실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 당해 기술분야에 통상의 지식을 지닌 자라면 이로부터 다양한 변형 및 균등한 타실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호범위는 첨부된 특허청구범위에 의해서만 정해져야 할 것이다.Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.
Claims (1)
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| KR1020000059644A KR20020028577A (en) | 2000-10-11 | 2000-10-11 | a communication system for delivery of information to vehicles |
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| KR20020078550A (en) * | 2001-04-04 | 2002-10-19 | 안홍진 | A System and Method for transferring and operating data which is used for providing advertisement to the inside of Bus |
| KR100813331B1 (en) * | 2004-03-10 | 2008-03-12 | 닛본 덴끼 가부시끼가이샤 | Data transmission/reception system capable of transmitting and receiving data even from within a mobile unit that cannot maintain constant connection with a communication network |
| KR101239286B1 (en) * | 2011-12-28 | 2013-03-06 | (주) 한일디엔에스 | Bus information terminal based on cloud and bus information system using the same |
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| KR20020078550A (en) * | 2001-04-04 | 2002-10-19 | 안홍진 | A System and Method for transferring and operating data which is used for providing advertisement to the inside of Bus |
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