KR20030033197A - Information system for bus route using GPS - Google Patents

Abstract

PURPOSE: A bus service guide system using a GPS(Global Positioning System) is provided to transfer correctly peripheral information to a passenger by reporting visually bus service information related to bus stations. CONSTITUTION: A GPS module(10) is used for receiving a GPS signal from a satellite and calculates a geographical position on the basis of the received GPS signal. A calculation portion(20) calculates data of the GPS module(10). A memory portion(40) stores data of the calculation portion(20). A data storage portion(30) stores voice data, text data, map data, and absolute coordinates data related to a bus route. A map data regeneration portion(50) regenerates the map data of the data storage portion(30). A voice data regeneration portion(80) regenerates the voice data of the data storage portion(30). A text data regeneration portion(60) regenerates the text data of the data storage portion(30). A display portion(70) displays output signals of the map data and the text data regeneration portions(50,60). A voice output portion(90) outputs a regeneration signal of the voice data regeneration portion(80).

Description

Bus route guidance system using GPS {Information system for bus route using GPS}

The present invention relates to a bus route guidance system using GPS (GPS, Global Positioning System, location information system, hereinafter referred to as GPS), which is mounted on a bus that operates a predetermined route to visually guide the bus route A route guidance system and method thereof are provided.

The route guidance system mounted on a conventional route bus that runs a predetermined route is a guide broadcasting system in which a driver must broadcast a recorded announcement corresponding to a stop every time the stop reaches the stop, which is inconvenient for the driver. In some cases, announcements were omitted, and inaccurate announcements were often made.

In addition, due to the noise in the bus not only can not hear the guidance broadcast correctly, but also hearing impaired people have a problem that can not accurately determine the route by the announcement alone.

An object of the present invention for solving the above problems is to provide a bus route guidance system and method that can visually display a bus route with guide broadcast using GPS data received from satellites.

1 is a block diagram of a bus route guidance system according to the present invention;

2 is a flowchart of a route guidance method for a bus route guidance system according to the present invention;

3 is a diagram illustrating an example of bus route guidance according to the present invention.

Explanation of symbols on the main parts of the drawings

10; GPS module 11; GPS antenna

20; Arithmetic unit 30; Data storage

40; Memory section 50; Map player

60; Announcement text playback unit 70; Display section

80; Guide voice playback unit 90; Audio output

According to an aspect of the present invention, there is provided a GPS module for receiving a GPS signal from a satellite and calculating a geographical position based on the received signal; A calculator 20 for reading the data calculated from the GPS module 10 and calculating the calculated data; A memory unit 40 for storing data calculated by the operation unit; A data storage unit 30 for storing the absolute voice data of the guide voice, the guide phrase, the map, and the stop along the route; A map reproducing unit (50) for reproducing map data stored in the data storage unit (30) by the output signal of the calculating unit (20); A guide voice reproducing unit 80 for reproducing the guide voice data; A guide phrase reproducing unit 60 for reproducing the guide phrase data; A display unit (70) for visually displaying a reproduction signal output from the map reproduction unit (50) and a reproduction signal output from the guide phrase reproduction unit (60) by the output signal of the operation unit (20); An audio output unit 90 for outputting a reproduction signal output from the guide audio reproduction unit 80 as voice; It is characterized in that the configuration.

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

1 is a block diagram of a bus route guidance system according to the present invention. Referring to this, the GPS module 10 receives a GPS signal from a satellite by using an attached GPS antenna 11 to obtain current location information. Calculate in real time. Since the GPS signal reception and modulation and demodulation may be performed by a conventional Code Division Multiple Access (CDMA) scheme, a detailed description thereof will be omitted.

The GPS module 10 transmits the current position information calculated by the GPS to the calculator 20 through RS-232C or USB communication with the calculator 20. Here, the operation unit 20 has an interface for input and output for the RS-232C or USB communication, the motherboard equipped with a CPU and the CD-ROM drive, floppy disk drive, mouse, keyboard, etc. It is desirable to be configured as a conventional computer having an input / output device, a storage device such as a hard disk, and a volatile memory element such as a RAM.

The current position information transmitted to the calculation unit 20 is temporarily stored in the interlocking memory unit 40 so that the calculation unit 20 compares the data stored in the data storage unit 30 with the position determination. The details thereof will be described later. Here, the memory unit preferably uses a conventional volatile memory device such as a RAM or a FLASH memory, and preferably, may be configured as a RAM interoperating with the operation unit 20.

In addition, the data storage unit 30 stores audio-visual guide data according to the route, the map DB 31 indicating the visual position of the stop belonging to the route together with the surrounding geographical information and the guide voice DB corresponding to each stop. (32), the guidance phrase DB 33, and the stop DB 34 in which the position of each stop of the line is set as an absolute coordinate value on the earth. Preferably, the data storage unit 30 may be configured as a CD-ROM containing a storage device or route information such as a hard disk interlocked with the operation unit 20.

In addition, a map reproducing unit 50 for reproducing the map DB 31 stored in the data storage unit 30 is connected to an output terminal of the calculating unit 20. The guide phrase reproducing unit 60 for reproducing the guide phrase DB 33 stored in the data storage unit 30 by the output signal of 30 is connected, and the map reproducing unit 50 and the guide phrase reproducing unit ( The signal reproduced in 60 is output through the display unit 70 which amplifies and visually displays the signal.

In addition, a guide voice reproducing unit 80 for reproducing the guide voice DB 32 stored in the data storage unit 30 is connected to the output terminal of the calculator 20 by the output signal of the calculator 30. The signal reproduced by the guide voice reproducing unit 80 is output through the guide voice output unit 90 which amplifies the signal and outputs it audibly. Here, it is preferable to use an LCD display monitor of 17 inches or more as the display unit 70.

Hereinafter, the route guidance method using the route guidance system of the present invention configured as described above will be described in detail with reference to the flowchart of the route guidance method of FIG. 2.

First, the route guidance system of the present invention is initialized at the place (end point) at which the bus route starts (step S201). According to the initialization, the stop DB 34 corresponding to the route is newly set up from the start position of the route, and the GPS module 10 is also initialized.

After the initializing step, when the bus starts running, the GPS signal is received from the satellite by the GPS module 10 (step S202), and the GPS module 10 calculates the geographic location based on the received signal to determine the current location. Data of the information is obtained (step S203). Then, the calculation unit 20 reads the calculated current position information into the memory unit 40 interworking with the operation unit 20 by using an RS-232C or a USB data communication method (step S204).

Based on the read current position information, the calculation unit 20 calculates an absolute coordinate numerical value on the earth corresponding to the local position information (step S205). Then, the calculating unit 20 temporarily stores the calculated absolute coordinate numerical value in a buffer (not shown) of the memory unit 40 (step S206). Then, the calculation unit 20 searches the stop DB 34 in the data storage unit 30 (step S207), and the current value is obtained by the absolute coordinate numerical value of the stop in the stop DB 34 and the GPS data temporarily stored in the buffer. The absolute coordinate numerical values of the positional information are compared with each other (steps S208, S208-1).

As a result of the comparison, when the absolute coordinate value of the stop in the stop DB 34 and the absolute coordinate value of the current position information by the GPS data stored in the buffer coincide, the operation unit 20 stops in the stop DB 34. A guide phrase, a guide voice, and a map of the stop corresponding to the numerical value of the absolute coordinates of the database are loaded from each database (guide phrase DB, guide voice DB, map DB) (step S209, step S210, step S211), and the calculation unit 20 ) Activates and reproduces the guide phrase reproducing unit 60, the guide voice reproducing unit 80, and the map reproducing unit 50 (step S212, step S213, step S214), and the display unit 70 and voice output. The unit 90 outputs a map containing guide text, guide voice, and geographic information around the stop including the corresponding stop (step S215 and step S216).

After the route guidance, it is checked whether the absolute coordinate value of the stop corresponding to the end of the line and the absolute coordinate value stored in the buffer match (S217). In step S217, if the absolute coordinate value of the last stop and the absolute coordinate value of the buffer match, the system is terminated (step S218), and if it does not match, the process returns to the step of receiving a GPS signal again (step S202).

When the route bus arrives at the stop by the route guidance system using the GPS of the present invention having the above-described steps, the received GPS data is used to visually display a map indicating the guidance phrase corresponding to the stop and the geographical information of the surroundings. Not only can it be displayed, but the guide broadcast synchronized with this can be output in a timely manner.

Meanwhile, a database storing daily information such as weather, predetermined news, music data, or video data is constructed in the data storage unit 30 of the present invention. 70) and / or output through the voice output unit 90, thereby eliminating the passenger's freeness.

3 is a view showing an example of the route guidance by the route guidance system of the present invention, the guidance text is displayed by the display unit 70 so that the current and next stops on the bus route are sequentially displayed in Korean and English (D1). , D2), and the guiding voice is output through the voice output unit 90 in synchronization with this, and then the map including the geographical information of the stop and the surrounding area is displayed by the display unit 70. The order in which the announcements, announcements and voices are displayed and the maps are not specified.

In addition, as a business model according to the present invention, the advertisement DB is provided separately in the data storage unit 30, and the calculation unit 20 activates the data of the advertisement DB at the same time as the route guidance according to the present invention. By inserting the advertisement information at the beginning or the middle of the process, a predetermined profit can be obtained by receiving the advertisement order.

The effect of the present invention having the above-described configuration is to visually notify the information of the stop on the bus route, passengers can accurately determine the current position of the stop and the surrounding information, so that the passengers can be improved service Can provide.

In addition, by providing a visual guidance through the display device rather than the conventional simple guide broadcast, it is possible to improve the enjoyment of the passengers.

In addition, since the driver does not need to guide the route at each stop along the route, it is a very advanced invention that can promote safe driving.

Claims (5)

In a general location information system using GPS, A GPS module 10 for receiving a GPS signal from a satellite and calculating a geographic location based on the received signal; A calculator 20 for reading the data calculated from the GPS module 10 and calculating the calculated data; A memory unit 40 for storing data calculated by the operation unit; A data storage unit 30 for storing the absolute voice data of the guide voice, the guide phrase, the map, and the stop along the route; A map reproducing unit (50) for reproducing map data stored in the data storage unit (30) by the output signal of the calculating unit (20); A guide voice reproducing unit 80 for reproducing the guide voice data; A guide phrase reproducing unit 60 for reproducing the guide phrase data; A display unit (70) for visually displaying a reproduction signal output from the map reproduction unit (50) and a reproduction signal output from the guide phrase reproduction unit (60) by the output signal of the operation unit (20); An audio output unit 90 for outputting a reproduction signal output from the guide audio reproduction unit 80 as voice; Bus route guidance system using GPS, characterized in that the configuration. The method of claim 1, The data storage unit 30 is a map DB (31) indicating the visual position of the stops belonging to the line with the surrounding geographic information, a guide voice DB (32) and a guide phrase DB (33) corresponding to each stop and the route A bus route guidance system using GPS, wherein the position of each stop is composed of a stop DB 34 set as an absolute coordinate value on the earth. The method according to claim 1 or 2, The display unit 70 is a bus route guidance system using GPS, characterized in that the LCD display monitor. In a general location information system using GPS, Initializing the route guidance system at the place where the operation of the bus route is started (step S201); Receiving a GPS signal from the satellite by the GPS module 10 when the bus starts to operate (step S202); The GPS module 10 calculating a geographic location based on the received signal to obtain data of current location information (step S203); Reading the calculated current position information from the calculation unit 20 into the memory unit 40 interlocked with the calculation unit 20 (step S204); Calculating, by the calculation unit 20, an absolute coordinate numerical value on the earth corresponding to the local position information based on the read current position information (step S205); A step in which the calculating unit 20 temporarily stores the calculated absolute coordinate numerical value in a buffer of the memory unit 40 (step S206); The calculation unit 20 searches for the stop DB 34 in the data storage unit 30 (step S207); Computing unit 20 compares the absolute coordinate numerical value of the stop in the stop DB 34 with the absolute coordinate numerical value of the current position information by the GPS data temporarily stored in the buffer (step S208); As a result of the comparison, when the absolute coordinate numerical value of the stop in the stop DB 34 and the absolute coordinate numerical value of the current position information by the GPS data stored in the buffer coincide, the operation unit 20 stops the stop in the stop DB 34. Loading guide phrases, guide voices, and maps of the stations corresponding to the absolute coordinates of the numerical values from the respective databases (steps S209, S210, and S211); The calculation unit 20 activating and reproducing the loaded data by the guide phrase reproducing unit 60, the guide voice reproducing unit 80, and the map reproducing unit 50 (step S212, step S213, step S214); Outputting the reproduced data through the display unit 70 and the audio output unit 90 (step S215, step S216); Checking whether an absolute coordinate value of a stop corresponding to the end of the line and an absolute coordinate value stored in the buffer coincide (S217); Terminating the system if the absolute coordinate value of the last stop matches the absolute coordinate value of the buffer (step S218); Bus route guidance method using GPS, characterized in that it comprises a. The method of claim 4, wherein The advertisement DB is separately provided in the data storage unit 30, and the calculation unit 20 activates the data of the advertisement DB simultaneously with the route guidance so that the advertisement information is inserted at the beginning and the beginning or the middle of the route guidance. Bus route guidance method using GPS.