KR20010046292A - System and method for providing a real time traffic information using cdma wireless communication network - Google Patents

Abstract

The present invention relates to a traffic information providing system and method for providing traffic information through a CDMA wireless communication network, comprising: storage means for storing traffic information; First input means for providing input traffic information in real time; Second input means for providing information on a driving location and a call number for wireless communication to be input in real time; Central management means that receives information on the call number for wireless communication through the internet network and provides call signals in real time, receives traffic information on driving places input through the internet network, and provides the received traffic information in real time. ; Radio frequency processing means for converting the text information signal and the call signal transmitted from the central management means into radio frequency signals and connecting the converted radio frequency call signal and text information signal to the CDMA wireless network; And voice processing means for demodulating the text information signal of the radio frequency transmitted through the CDMA radio network and outputting demodulated traffic information in response to the call signal of the radio frequency transmitted through the CDMA radio network.

Description

Real-time traffic information providing system and method using a code division multiple access wireless communication network {SYSTEM AND METHOD FOR PROVIDING A REAL TIME TRAFFIC INFORMATION USING CDMA WIRELESS COMMUNICATION NETWORK}

The present invention relates to a system and a method for providing real-time traffic information using a code division multiple access (CDMA) wireless communication network. More specifically, the present invention relates to a CDMA wireless communication network. It relates to a traffic information providing system and a method for providing in real time through.

In recent years, as the penetration rate of automobiles has increased rapidly, the number of vehicles is rapidly increasing to the extent that it is exponentially, and the current situation is that the penetration rate of roads is gradually decreasing compared to the number of vehicles. Accordingly, in order to reach the destination, the vehicle driver grasps the road condition from the suspension position to the destination and tries to bypass or avoid the congestion section or the congested area. In order to obtain such traffic information, it is necessary to receive data on the current location and destination of each vehicle and process it at the central control center to predict the current road situation and future traffic situation.

Before the emergence of the US military satellite Global Positioning System (GPS) satellite, a small wireless base station was installed using a beacon method and serving as a reference point in the middle of an urban area or a road. Each time the vehicle was passed, a vehicle tracking system was used to obtain location information from the base station.

However, in the case of the traffic providing system using a conventional vehicle tracking device as described above, because the base station is installed in various places in the city, the natural environment of the station (for example, there is a disturbance due to lightning and birds living) There have been a lot of difficulties in the installation and management of the tracking device, and if the conventional vehicle tracking device is not correctly installed, there is a problem that can not provide the correct traffic information because the tracking data is not accurate.

In addition, such a vehicle tracking system has a disadvantage that it is not easy to use the public because it is expensive.

On the other hand, commuting is the biggest part of self-driving cars. However, in general, there may be several driving routes during commuting, and it would be very convenient to know if it would take the least time among them.

Accordingly, the present invention has been made to solve the above problems, by providing the traffic information on the road to run in real time through the wireless communication network of the CDMA method, the driver bypasses the traffic jam area to the target point The purpose of the present invention is to provide a traffic information providing system and a method for safe driving.

1 is a block diagram of a system for providing real-time traffic information using a code division multiple access wireless communication network according to an embodiment of the present invention.

2 is a flowchart illustrating a method for providing real-time traffic information using a code division multiple access wireless communication network according to an embodiment of the present invention.

3 is a flowchart illustrating a method for providing real-time traffic information using a code division multiple access wireless communication network according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

110: database 120: Internet network

130, 141 to 14n: Computer 150: Central Management Server

160: voice signal converter 170: radio frequency converter

180: CDMA interface 190: CDMA wireless network

211 to 21n: terminal for wireless communication

In order to achieve the above object, the present invention provides a traffic information providing system that provides traffic information in real time through a wireless communication network of a code division multiple access (CDMA) system, wherein the user information is arbitrarily set. Storage means for storing the traffic information; First input means for providing traffic information input from the outside in real time through an Internet network; Second input means for providing the user information and information about a driving place input from outside and a call number for wireless communication in real time through the Internet network; Search the storage means to convert the call signal and traffic information corresponding to the user information into a text information signal, and outputs, and receives the call signal for receiving information on the call number for wireless communication through the outside or the Internet network. It provides in real time, receives the traffic information on the driving place input through the outside or the Internet network by the storage means and the first input means, converts the received traffic information into a text information signal to provide in real time Central management means; Radio frequency processing means for converting a text information signal and a call signal provided from the central management means into a radio frequency signal and connecting the converted radio frequency call signal and text information signal to a CDMA wireless network; And voice processing means for demodulating the text information signal of the radio frequency transmitted through the CDMA radio network and outputting demodulated traffic information in response to the call signal of the radio frequency transmitted through the CDMA radio network. .

In addition, the present invention, in the traffic information providing method for providing traffic information in real time through a wireless communication network of the Code Division Multiple Access (CDMA) system, the current time and the stored commute time and leave time coincide A first step of confirming whether current traffic information of a stored user's commute place is input through an internet network; If the current traffic information is not input as a result of the checking, the call number and the traffic information for calling the wireless communication terminal using the read call number are read by reading the stored call number and the traffic information about the commute place. Converting the signal into a text information signal and outputting the converted text information signal; If the current traffic information is input, the call signal for calling the wireless communication terminal using the read call number and the current traffic information input through the Internet network are converted into text information and output in real time. A third step of doing; Converting the call signal and the text information signal into a radio frequency signal and transmitting the converted call signal and text information signal through a CDMA wireless network; And a fifth step of demodulating the text information signal of the radio frequency received through the CDMA radio network and demodulating the demodulated traffic information in response to the call signal of the radio frequency received through the CDMA radio network. .

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

1 is a block diagram of a real-time traffic information providing system using a code division multiple access wireless communication network according to an embodiment of the present invention.

As shown in FIG. 1, the traffic information providing system of the present invention provides a database 110 for storing user information and traffic information, and traffic information input by a user in real time through the Internet network 120. Computers (141) to provide information on the commute time, driving place and wireless communication call number input by the driver in real time via the Internet network 120 and the database (110) Search for and output the call signal and traffic information corresponding to the user information, and receives the information on the call number for the wireless communication transmitted by the administrator or the computer (141 to 14n) and provides a call (call) in real time After receiving the traffic information on the driving place input by the administrator or the computers 141 to 14n from the database 110 and the computer 130, the received traffic information is set to text. Central management server 150 for converting the signal to provide in real time, the voice signal converter 160 for converting the text information signal provided from the central management server 150 to a voice signal, and from the central management server 150 Converted by the radio frequency converter 170 and the radio frequency converter 170 for converting the call signal transmitted through the voice signal converter 160 and the voice signal converted by the voice signal converter 160 into a radio frequency signal In response to a call signal received through the CDMA interface 180 and the CDMA wireless network 190 for connecting the voice signal and the call signal of the radio frequency to the CDMA wireless network 190, Wireless communication terminals (211 to 21n) for demodulating the voice signal of the radio frequency transmitted through the demodulated traffic information to the driver.

In this case, the voice signal converter 160 may not be used. In this case, the radio frequency converter 170 converts the text information signal transmitted from the central management server 150 into a radio frequency signal. The user information stored in the database 110 includes information on a time and place for commuting and a call number of a wireless communication terminal.

The database 110 is used to store traffic information set by the outside, and stores traffic information on each road generated for each day of the week and the time (that is, hour and minute) of each day of the week. At this time, the stored traffic information is a combination of traffic conditions on each road experienced over a long period of time, and is information on vehicle speed, traffic congestion, and traffic condition.

The database 110 stores information about a commute time and place of a user input through the central management server 150 and a call number of the terminal for wireless communication. At this time, the information and the call number for the commute time and place to be stored is when the user enters the commute time and place and call number through the computers (141 to 14n), the central management server 150 through the Internet network 120 This information is received and stored in the database 110. Alternatively, when the administrator of the central management server 150 receives a commute time and place and a call number from a user and directly inputs it to the central management server 150, the central management server 150 receives information about the entered commute time and place. And call number is stored in the database (110).

As such, the database 110 may be set in the central management server 150, or may provide traffic information required by the central management server 150 while being separate from the central management server 150.

The computer 130 transmits traffic information input by the user using the keyboard to the central management server 150 in real time through the internet network 120. For example, the computer 130 will be described below.

When the driver driving the vehicle contacts the administrator of the computer 130 by using a telephone or a mobile phone for traffic information about a traffic accident or traffic jam occurring in the vicinity of the vehicle, the administrator of the computer 130 who has received the traffic information receives a keyboard The traffic information received through the computer 130 is input, and at the same time, the computer 130 provides the input traffic information to the central management server 150 through the Internet network 120. Thus, as the traffic information currently generated on the road is provided in real time through the computer 130, other drivers can visually check themselves through their wireless communication terminals among the wireless communication terminals 211 to 21n. It will be possible to check in real time the traffic situation occurring in the absence of the area.

Although the computer 130 is used as a means for inputting traffic information in the present invention, the present invention is not limited thereto, and a terminal device or the like that can be connected to the Internet network 120 may be used.

The computers 141 to 14n respectively transmit information about the commute time and place and the driving place input by the driver to the central management server 150 in real time through the Internet network 120. Looking at it as follows.

First, when the driver requests the electronic map through the keyboard, the computers 141 to 14n output the electronic map provided through the internet network 120 to the monitor according to the driver's request. Subsequently, when the driver clicks on the starting point and the destination on the monitored map by using the mouse, the computers 141 to 14n recognize the information about the driving place and at the same time through the internet network 120 The management server 150 transmits.

On the other hand, the information on the place the driver wants to drive may be directly input to the central management server 150. For example, when the driver informs the manager of the central management server 150 by using a phone or a mobile phone, the driver of the central management server 150 checks the driving place on the electronic map output on the monitor of the central management server 150. You can also click to enter the starting point and destination.

And, in order to receive traffic information service through the wireless communication terminal owned by the driver, the driver inputs a calling number through his computer. At this time, the input call number is transmitted to the central management server 150 through the Internet network 120.

In addition, the manager of the central management server 150 may be directly contacted by the driver, and the call number of the wireless communication terminal may be input through the central management server 150.

When the central management server 150 receives the information on the driving place of the driver from the computer 140 through the Internet network 120, or receives the information on the driving place directly by the administrator, search the database 110 It provides the traffic information on the driving place input to the corresponding wireless communication terminal of the wireless communication terminals (211 to 21n) through the CDMA wireless network 190 in real time. At this time, if the information on the current traffic situation of the driving place is input from the computer 130 through the Internet network 120, the central management server 150 is the traffic information in real time through the CDMA wireless network 190 Among the wireless communication terminals 211 to 21n, the terminal is provided as a corresponding wireless communication terminal.

Then, the central management server 150 receives the call number of the wireless communication terminal by the computer (141 to 14n) or the administrator, the call through the CDMA wireless network 190 to the wireless communication terminal to transfer traffic information Provide a signal.

In addition, the central management server 150 continues to search the database 150, if there is information on the user of the current time and commute or work time match, receives the user's call number and traffic information about the commute place, The call signal and traffic information for calling the user's wireless communication terminal are converted into text information and output to the voice signal converter 170 or the radio frequency converter 170.

The voice signal converter 160 is installed outside the central server 150 as shown in FIG. 1 and receives a signal through a wire, but may be mounted inside the central server 150.

In addition, although the RF converter 170 and the CDMA interface 180 are external to the central server 140 in the same manner as the voice signal converter 160 in FIG. 1, the RF server 170 and the CDMA interface 180 may be formed together with the voice signal converter 160. It may be built into 150).

Meanwhile, the RF converter 170 and the CDMA interface 180 may be mounted in the CDMA wireless network 190 while being wired to the central server 150 through the voice signal converter 160.

In response to a call signal provided from the central server 150, the wireless communication terminals 211 to 21n respectively notify the user of traffic information processed by processing a signal received through the CDMA wireless network 190.

As such, the wireless communication terminals 211 to 21n used in the present invention are products that have already been put into practical use and are widely used, that is, users can listen to the radio frequency signals received through the CDMA wireless network 190. The procedure is the same as in the known art.

On the other hand, the terminal for the next generation mobile communication (IMT-2000) that can provide a video may be used in the present invention, when using the next-generation mobile communication terminal, the driver more accurately through the traffic information provided in the video traffic You will understand the situation.

2 is a flowchart illustrating a method for providing real-time traffic information using a wireless communication network of a code division multiple access method according to an embodiment of the present invention, with reference to this process for providing traffic information in real time using a wireless communication network. Is as follows.

First, the central management server 150 stores information about a user's commute time and place, which is inputted from an administrator or computers 141 to 14n through the Internet network 120, and a user's wireless communication call number in the database 110. Save (201).

In addition, the central management server 150 continuously searches the database 150 and checks whether the current time and the stored commute or leaving time coincide with each other (202), and if it does not match, continuously searches the database 150.

However, in the commute time check process 202, if the current time and the stored commute or leave time match, the central management server 150 is the current traffic information about the commute location of the user stored in the database 110 is the computer 130 And (203), if not input, reads the user's call number and traffic information about the commute place from the database 110, and calls the user's wireless communication terminal. The call signal and the read traffic information are converted into text information and output (204).

If the current traffic information is input in the traffic information checking process 203, the central management server 150 reads the user's call number from the database 110 and calls the user's wireless communication terminal. The current traffic information input through the Internet network 120 is converted into text information and output in real time (205).

Subsequently, the voice signal converter 160 converts the text information signal provided from the central management server 150 into a voice signal and transmits it to the radio frequency converter 170 (206). At this time, the call signal provided from the central management server 150 is transmitted to the RF converter 170 without being converted through the voice signal converter 160.

On the other hand, when the voice signal converter 160 is not used and the text information signal provided from the central management server 150 is directly transmitted from the radio frequency converter 170, the sound ray signal conversion process 206 is considered to be absent. .

In this way, the converted voice signal and the call signal is converted into a radio frequency signal by the radio frequency converter 170, and then out of the wireless communication terminals (211 to 21n) through the CDMA interface 180 and the CDMA wireless network 190 The data is transmitted to the wireless communication terminal (207). Meanwhile, when the text information signal provided from the central management server 150 is directly transmitted to the radio frequency converter 170 without passing through the voice signal converter 160, the radio frequency converter 170 wirelessly transmits the transmitted text information signal. Convert to frequency signal.

In this way, the wireless communication terminal receiving the transmitted radio frequency signal, in response to the received call signal, demodulates the received radio frequency voice signal into the original signal to the demodulated traffic information to the driver as a voice. (208).

On the other hand, the present invention also provides traffic information for the driving place directly input from the user, as shown in FIG.

3 is a flowchart illustrating a method for providing real-time traffic information using a code division multiple access wireless communication network according to another embodiment of the present invention.

If the central management server 150 inputs the driving location of the driver and the call number of the wireless communication terminal that can be received from the computers 141 to 14n through the Internet network 120 (301), the central management server 150 is a database Searching 110 transmits the call signal for the input call number to the voice signal converter 160 or the radio frequency changer 170, and simultaneously transmits the traffic information about the input driving place to the database 110 and the computer 130. And the received traffic information is converted into a text information signal and provided to the voice signal converter 160 or the radio frequency converter 170 in real time (302).

At this time, the call signal and the text information signal provided from the central management server 150, after the voice signal conversion and radio frequency conversion process (303, 304) as described above in Figure 2, the CDMA wireless network 190 The voice is transmitted to the driver through 305.

Although the technical spirit of the present invention has been described in detail according to the above-described preferred embodiment, it should be noted that the above-described embodiment is for the purpose of description and not of limitation. In addition, those skilled in the art will understand that various embodiments are possible within the scope of the technical idea of the present invention.

As described above, the present invention has the following effects by providing traffic information to a driver in real time through a CDMA wireless communication network.

First, it is possible to easily solve the traffic congestion by allowing drivers running on the road to quickly check the traffic congestion area and bypass the identified congestion area.

Second, by significantly reducing the number of wires by using wireless communication, the installation cost can be significantly reduced.

Third, it is possible to diversify the use of the wireless communication terminal that is used for transmitting and receiving like a general telephone.

Fourth, the driver can be prevented from being late due to traffic jams.

Fifth, it is possible to increase the credibility of the driver by allowing the driver to reach the length of the appointment within the appointment time.

Claims (10)

In a traffic information providing system for providing traffic information in real time through a wireless communication network of Code Division Multiple Access (CDMA) method, Storage means for storing input user information and arbitrarily set traffic information; First input means for providing traffic information input from the outside in real time through an Internet network; Second input means for providing the user information and information about a driving place input from outside and a call number for wireless communication in real time through the Internet network; Search the storage means to convert the call signal and traffic information corresponding to the user information into a text information signal, and outputs, and receives the call signal for receiving information on the call number for wireless communication through the outside or the Internet network. It provides in real time, receives the traffic information on the driving place input through the outside or the Internet network by the storage means and the first input means, converts the received traffic information into a text information signal to provide in real time Central management means; Radio frequency processing means for converting a text information signal and a call signal provided from the central management means into a radio frequency signal and connecting the converted radio frequency call signal and text information signal to a CDMA wireless network; And Voice processing means for demodulating the text information signal of the radio frequency transmitted through the CDMA radio network and outputting demodulated traffic information in response to a call signal of the radio frequency transmitted through the CDMA radio network. Traffic information providing system comprising a. The method of claim 1, It is further provided with a voice signal conversion means for converting the text information signal transmitted from the central management means into a voice signal and transmitting to the radio frequency conversion means, The radio frequency processing means converts the voice signal converted by the voice signal conversion means into a radio frequency signal and connects the converted voice signal to a CDMA wireless network. And the voice processing means outputs demodulated traffic information as voice by demodulating a voice signal of a radio frequency transmitted through the CDMA wireless network. The method according to claim 1 or 2, The first input means, A computer for transmitting the traffic information input from a user through a keyboard to the central management means through the internet network Traffic information providing system comprising a. The method according to claim 1 or 2, The second input means, At least one computer that provides information on a driving location set by a user and a call number for wireless communication in real time through the Internet network. Traffic information providing system comprising a. The method according to claim 1 or 2, The radio frequency processing means, A radio frequency converter for converting the transmitted text information signal, voice signal and call signal into a radio frequency signal; And CDMA interface for connecting the radio frequency signal converted by the radio frequency converter to the CDMA wireless network Traffic information providing system comprising a. The method according to claim 1 or 2, The voice processing means, At least one wireless communication terminal for demodulating the demodulated voice signal of the radio frequency received through the CDMA wireless network and demodulating traffic information to the user in response to the call signal received through the CDMA wireless network. Traffic information providing system comprising a. The method according to claim 1 or 2, The user information, Information about the user's commute time, information about driving places when the user commute, and information about the call number of the wireless communication terminal that the user can receive Traffic information providing system comprising a. In a traffic information providing method for providing traffic information in real time through a wireless communication network of Code Division Multiple Access (CDMA) method, A first step of confirming whether current traffic information of a stored user's commute place is input through the internet network if the current time and the stored commute time or the leave time coincide; If the current traffic information is not input as a result of the checking, the call number and the traffic information for calling the wireless communication terminal using the read call number are read by reading the stored call number and the traffic information about the commute place. Converting the signal into a text information signal and outputting the converted text information signal; If the current traffic information is input, the call signal for calling the wireless communication terminal using the read call number and the current traffic information input through the Internet network are converted into text information and output in real time. A third step of doing; Converting the call signal and the text information signal into a radio frequency signal and transmitting the converted call signal and text information signal through a CDMA wireless network; And A fifth step of demodulating the text information signal of the radio frequency received through the CDMA radio network and outputting demodulated traffic information in response to a call signal of the radio frequency received through the CDMA radio network; Traffic information providing method comprising a. The method of claim 8, A sixth step of inputting information on a driving location of the vehicle and a call number for wireless communication in real time through the Internet network; And The seventh step of providing a call signal for the input call number, and at the same time converts the traffic information on the input driving place into a text information signal to provide in real time Traffic information providing method further comprising. The method according to claim 8 or 9, An eighth step of converting the converted text information signal into a voice signal; And A ninth step of converting the converted voice signal into a radio frequency signal and transmitting the converted call signal and voice signal through a CDMA wireless network; Traffic information providing method further comprising.