KR20020083749A - Remote tour guide system - Google Patents

Abstract

PURPOSE: A remote tour guide system is provided to obtain the various tour information fast and easily at a low price through the wireless Internet by using a mobile terminal having a GPS(Global Positioning System) module. CONSTITUTION: The mobile terminal(20) such as a PDA(Personal Digital Assistant) detects the present position through the GPS receiving module(21) and transmits the detected position information and the tour guide request information to a tour guide server(10) through a wireless Internet network(30). The server registers the present position of the mobile terminal, makes the map image information corresponding to the tour guide request information, and transmits the map image information to the mobile terminal through the wireless Internet network. The mobile terminal displays the present position and the tour guide information on the received map image.

Description

Remote tour guide system {REMOTE TOUR GUIDE SYSTEM}

The present invention relates to a remote tourist information system, and in particular, by connecting a tourist information service server and a personal portable terminal with a built-in GPS module through a wireless Internet, a remote person who can receive various information and services necessary for tourism without a tour guide. It is about a tourist information system.

With the development of transportation and communication, the market for tourism and leisure is expanding rapidly. In the tourism service industry, it is very important to promote and guide tourist attractions, and the traveler needs to obtain information about tourist attractions, such as accommodation, transportation, restaurants, tourist attractions, and the like.

In recent years, tourist information around the world can be accessed very easily through the Internet, but it is still applicable only to some people who use computers well.

Even if the tourist information is obtained through the Internet, this information is only preliminary information and is not useful at the tourist site because the traveler cannot memorize all the acquired information. Therefore, sightseeing in unknown places is very burdensome and difficult for the general public.

Therefore, the traveler needs the help of a travel agent or a professional travel guide.

However, in the case of using a travel agency, it is often necessary to receive a guide in the form of a group tour in the local area, and in this case, one guide is usually guided according to the intention of a travel agency or a guide in accordance with a predetermined travel schedule. Therefore, regardless of the tourist intention, he will be sightseeing in the weekly mountain schedule according to the scheduled schedule.

If you want a guide to go beyond this type of group tourism, you will have to pay a lot.

Nevertheless, traveling alone by unknown unknown takes a lot of courage. In addition, in case of foreign travel that is not communicated, the situation is hardly neglected.

Even if you take courage and travel alone, such as backpacking, it takes a lot of time and effort to prepare in advance.

An object of the present invention has a portable terminal with a built-in GPS module in order to solve the problems of the prior art as described above, the remote tourist information can be obtained quickly and easily, at a low cost, quickly and easily through the wireless Internet anywhere in the world To provide a system.

Another object of the present invention is to provide a remote tour guide system capable of providing not only tourist guide but also various additional services such as necessary tourist map, foreign language information, call taxi service or rescue request.

Another object of the present invention to provide a personal data assistant (PDA) having a GPS module and a wireless Internet module.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram showing the configuration of a preferred embodiment of a remote tourism guide system according to the present invention.

2 to 25 are screen state diagrams and system operation flow diagrams of a portable terminal for explaining the operation according to the present invention.

* Brief description of symbols for the main parts of the drawings *

10: server 20: portable terminal

30: Wireless Internet Network 40: Taxi Company

50: Tourism Organization

In order to achieve the above object, the system of the present invention detects a current location through a GPS receiving module in a portable terminal, and transmits the detected current location information and tour guide request information to a tour guide server through a wireless Internet network. In the tourist information server, the current location of the received mobile terminal is registered, map image information in response to the tourist information request information is created, map image information created through the wireless Internet network is transmitted to the mobile terminal, and In the terminal, the detected current location and the requested tour guide information are displayed on the received map image.

Hereinafter, with reference to the accompanying drawings will be described in detail through a preferred embodiment of the present invention.

Referring to FIG. 1, in the remote tour guide system of the present invention, the tour guide service server 10 and the PDA 20 are connected through a wireless Internet network 30. In addition, the server 10 is connected to the taxi company 40 and the tourism construction 50 to perform a call taxi service and emergency rescue service.

The server 10 includes a web server 11, a root server 12, a DB server 13, a TEMP server 14, a MAP server 15, and a management server 16.

WEB server 11 is a server that manages access and dispatch, ROUTE server 12 is a server that represents the shortest path, provides a path when requesting a route, DB server 13 is a server that provides data, and a TEMP server 14 stores a map and sends the map, and the MAP server 15 provides a map picture (GIF or PNG) as a server for generating a map.

The management server 16 acts as a server administrator as a system management and development server.

The PDA 20, which is a portable terminal, includes a GPS receiving module 21, a wireless Internet module 22, a liquid crystal display 23, a key input unit 24, and a storage unit 25.

The GPS receiving module 21 includes a general GPS receiving antenna and a signal processing chip, receives GPS signals emitted from at least three satellites, and decodes the received GPS signals to generate longitude and latitude data of the current location. To the control unit 26.

The wireless Internet module 22 performs transmission and reception with the base station of the wireless Internet network 30 according to the wireless Internet protocol, modulates and transmits the data provided from the control unit 26 into a high frequency signal, and demodulates the received high frequency signal. The decoded signal is decoded and the decoded data is provided to the controller 26.

The liquid crystal display 23 displays image and text data provided from the control unit 26 on the liquid crystal panel.

The key input unit 24 includes a touch screen and an input button formed on the liquid crystal panel, and provides the input key command to the controller 26.

The storage unit 25 includes a nonvolatile memory such as an EEPROM, a flash memory, and an SRAM, a DRAM, a ROM, and the like, and stores user's personal information, detected current location information, and received map image data.

The control unit 26 is composed of a microcomputer and a peripheral circuit thereof, and controls various circuit units by executing a conventional PDA program and a tour guide program according to the present invention.

Referring to Figures 2 to 13 and 14 to 14 will be described the operation of the present invention.

Referring to FIG. 2, a process when a user (client) logs in to a site is shown.

① User inputs ID and password to request login.

② ID and password will be requested from WEB server to DB server.

③ The DB server checks the member DB.

④ When the work is confirmed, the DB server sends the result to the WEB server.

⑤ Again, WEB server grants user access.

3 shows a screen state of the portable terminal. On the screen, mode selection buttons such as tourism / hotel / map / telephone / kimchi / taxi / conversation / SOS are displayed.

First, referring to FIG. 4, when the “tour” button is selected on the screen 100, the screen of 102 is displayed. On the screen 102, selection buttons such as region selection / business information / recommended course / tourist assistant are displayed.

When "Business Information" is selected on the 102 screen, the 104 screen is displayed. The screen of 104 displays the subject / classification / region. For example, the topics are as follows.

shopping ; Discount store / department store / duty free shop / luxury goods / market / fashion street / specialty store.

food ; Korean / Chinese / Japanese / Western / Chinese / Café / Fast Food

culture ; Historic Sites / Museums / Performances / Art Galleries / Parks

Nightlife; Night / Bar / Karaoke / Club / Casino

leisure ; Ski / Golf / Mountaineering / Amusement Park / Water Sports

beauty ; Cosmetic / sauna / massage / beauty salon,

Lodging; Deluxe Hotel / Hotel

traffic ; Express Bus Terminal / Subway Station / Train Station

Also, the area is divided into Namdaemun, Myeongdong, Itaewon, Jongno, Insadong, Dongdaemun, Daehakro, Sinchon, Gyeongdong Market, Idae, Hongik University, Gangnam, Apgujeong-dong, Jamsil, Munjeong-dong, Samseong-dong, and Banpo.

If you enter your wishes in themes, categories, and regions, recommended merchants will appear, and if you click on a merchant, detailed information about the merchant will be displayed.

If you select "Region" on screen 104, the list of businesses located in the selected area is displayed on the screen of 106.

The screen of 106 displays A shop, B shop, C shop, and D shop. Selecting "B Business" on the screen 106 displays 108 screens showing the photo image and the map view icon of the selected business.

Referring to FIG. 5, business information is shown when a map is searched over a wired line.

① The user searches the business information category of the area.

② It requests a list of zones from WEB server to DB server.

③ DB server sends search list such as longitude (E), latitude (N), business name, code to WEB server, and WEB server sends this data to user again.

④ The user requests the WEB server for detailed information and map of the necessary data in the list.

⑤ WEB server requests detailed information (code) from DB server.

⑥ Detailed information is reached to user through WEB server.

⑦ WEB server provides variables (longitude, latitude, map level, command, flag, filename) for map generation to MAP server.

⑧ The generated map is saved with CSV icon information (Iconxxxx.txt) in the form of CSV to WEB server, and map is created and sent to TEMP server at the same time.

⑨ Map image is provided in PNG format file from TEMP server to user (client).

Referring to Fig. 6, business information is shown using a PDA over the air.

① The user searches the business information category of the area.

② Request search of the relevant zone list from WEB server to DB server.

③ The DB server sends the code search list to the WEB server. The WEB server sends this data back to the user.

④ The user requests the WEB server for detailed information and map of the necessary data.

⑤ WEB server requests detailed information (code) from DB server.

⑥ Variable information (east, north, filename) for requesting detailed information and map image is reached to user through WEB server.

⑦ The user requests a map image.

⑧ WEB server provides MAP server with variables (longitude, latitude, map level, command, flag, filename) for map generation.

⑨ The icon information (Iconxxxx.txt) on the map to the WEB server is saved in CSV format, and the map is created and sent to the TEMP server at the same time.

The TEMP server provides the user with a map image as a GIF file.

When you click the "Map View" icon on the screen 108, you will see your location and the location of your business on the map on the screen of 110 and two distances appear.

Referring to FIG. 7, a general map search process is shown.

① The user searches the business information category of the area.

② It requests a list of zones from WEB server to DB server.

③ DB server sends search list such as longitude (E), latitude (N), business name, code to WEB server, and WEB server sends this data to user again.

④ The user requests the WEB server for detailed information and map of the necessary data from the list.

(5) The WEB server stores the variable in the user's cookie.

(6) The user requests the cookie of the user (client) from the web server.

Then WEB server requests ⑦ code (code) back to DB server.

⑧ The requested detailed information is reached to the user through the WEB server.

⑨ The user requests a map.

⑩ WEB server provides variables (longitude, latitude, map level, command, flag, filename) for map generation to MAP server.

⑪ At this time, the generated map information is stored in the form of CSV (COMMA SEPARATED VALUES) as icon information (Iconxxxx.txt) on the map to WEB server, and the map is created and sent to TEMP server at the same time.

After that, the map image is provided as a GIF file from the TEMP server to the user (client).

The latitude is the latitude of the screen center, the longitude is the longitude of the screen center, and the level indicates the map size 1 ~ 10 levels, the command is the operation specification, the flag is the required value according to the command, and the file name is the 4-digit file name created in relation to the map There are three types: Mapxxxx.png (map image), Infxxxx.png (overlapping information image), and Iconxxxx.txt (save data in CSV format as data on the map's icons). Are stored in.

The data structure transmitted from WEB server to MAP server is as follows.

Latitude ; Latitude in the center of the screen

Hardness ; Longitude of screen center

Level; Map size 1-10 steps

Command; Operation

0: No information

2: Classification / Nearby Search

3: Shortest Path Search

4: Facility search

30: three-dimensional map

Flag; Required value according to command

If Command is 2: Flag is 4 digits of classification code (xxxx)

If Command is 3: Flag is the shortest path search result of 8 digits.

ID (Identifies up to 9 shortest path results. Xxxxxxxo Last

o is the delimiter)

Other: Flag value is not needed

File name; 4 digit filename generated by the map (xxxx)

Mapxxxx.png (Mapxxxx.gif for wireless): Map image

Infxxxx.png (Infxxxx.gif for wireless): Overlapping information images

Iconxxxx.txt: Latitude, longitude, name of the icon on the map

Data saved in CSV format

Store Map and Inf on Temp server and Icon on Web server

The transmitted text includes longitude, latitude, level, command, flag, file name and the like.

Standard Map; 127.xxxxxx, 37.xxxxxx, 7,0,0, xxxx

Classification / Near Search; 127.xxxxxx, 37.xxxxxx, 7,2, yyyy, xxxx

Path search; 127.xxxxxx, 37.xxxxxx, 7,3, yyyyyyyy, xxxx

Facility search; 127.xxxxxx, 37.xxxxxx, 7,4,0, xxxx

Three-dimensional map; 127.xxxxxx, 37.xxxxxx, 7,30,0, xxxx

Here, the longitude and latitude values are in decimal notation, where xxxxx is not a fixed number of digits.

Referring to FIG. 8, when a "recommended course" is selected on screen 102, a theme selection screen of 112 screens is displayed. When a topic is selected on the topic selection screen, a list of recommended courses by topic appears on 114 screens. When a course B is selected on the screen of 114, the course description screen of 116 is displayed. When the "business" is selected on the screen of 116, a screen of 118 is displayed in which a picture image of the business B and a map view and a map view icon are displayed.

When the map view is selected, 120 screens or 122 screens on which the location of the store and its location are displayed on the map are displayed.

The courses are divided according to the length of stay and the purpose of the trip. The courses are divided into six categories: Recommended Shopping Course (Deluxe), Recommended Shopping Course (Economy), Recommended Culture Course, Recommended Family Course, Recommended Lovers Course, and Recommended Market Course. The division of each field is as follows.

Recommended Shopping Course (Deluxe): A shopping course in the high-end area of Seoul.

Recommended Shopping Course (Economy): A shopping course in the mid-low-priced area of Seoul.

Recommended culture course: Forbidden City and Park in Seoul

Recommended Family Course: The center course is the area where you can spend with your family in Gangnam and downtown.

Recommended Lovers' Course: The main course is the palace, the dense area of souvenirs, and the area recommended as a date course.

Recommended Market Course: The main course is the area that offers cheap products and cheap but tasty food.

Referring to FIG. 9, when a "recommended course" is selected on screen 102, a theme selection screen of 124 screens is displayed. When you select a topic on the topic selection screen, a list of recommended courses by topic appears.

Cultural Assistant: Introduces Korea's famous tourist spots and their history

Shopping Assistant: By Type of Shopping (Brand, Bonded, Market) Introduces Korea's representative shopping tourist areas and the goods available there

Food Helper: Introduces famous Korean food, ingredients and how to eat

Nightlife Assistant: Introducing Korea's famous nightlife and tourist attractions

Leisure helper: introducing leisure activities in Korea

Beauty helper: introduces famous Korean beauty services, methods and effects

Traffic helper: An introduction to Korea's transportation and how to use it

Accommodation Assistance: Introduces the types and services of accommodations in Korea and points to note

10 shows how the recommendation course and the helper are made.

① The user connects through the program.

② The web server responds immediately.

③ The user requests the necessary data.

④ Provide document (document) from WEB server.

Referring to FIG. 11, when the "map" button is selected on the screen 100, the screen 126 is displayed. On the screen 126, selection buttons such as map search, map view, friend search, and navigation are displayed.

When "Map Search" is selected on the screen 126, 128 screens are displayed. On the screen of 128, local search / mutual search and the like are displayed. When the local search is selected on the screen of 128, the region selection screen such as Dongjak-gu / Shindaebang-dong is displayed on the screen of 130. If "Shindaebang" is selected on the screen of 130, the screen of 132 on which the Sindaebang map is displayed is displayed.

When mutual search is selected on the screen of 128, the mutual selection screen such as phrase / commercial name is displayed on the screen of 134. If "mutual" is selected on the screen of 134, a screen of 136 on which a map including the business name is displayed is displayed.

Referring to FIG. 12, when “viewing directions” is selected on screen 126, a screen of 138 is displayed. The screen at 138 displays the district and the east of the starting point. When the destination of the destination is selected on the screen of 138, the destination selection screen of the destination is displayed on the screen of 140. If you select "East" on the screen of 140, a map showing the starting and destination points is displayed on the screen of 132.

Referring to FIG. 13, when "Find friend" is selected on the screen 126, the screen of 144 is displayed. In the screen of 144, if the ID and password of the friend to be searched are inputted, a map showing the user's location and the friend's location is displayed on the screen of 146.

Referring to FIG. 14, a process of registering my map and member location is shown.

① Enter My Map and member location registration data.

② Save data (latitude, longitude, description, date, ID, signpost, password, message) from WEB server to DB server. At this time, the signpost, password, and message are applicable only to My Map.

③ After that, confirm that the data registered as a user (client) in the DB server is saved.

Referring to FIG. 15, a process of searching for my map and member location is shown.

① When the user transmits the registrant's ID and password, the DB server checks through the WEB server.

② After checking, the search result (idx-data index, E / N coordinate value, east, north, signpost) is delivered from DB server to web server via web server to user (client).

③ Request a map of the information you want.

(4) The web server temporarily stores the variables provided in the user's cookie again.

⑤ WEB server sends map generation request variables (ST_E, ST_N, ED_E, ED_N, FIG1, FIG2, FIG3) to MAP server.

⑥ MAP server stores icon information (Iconxxxx.txt) on the map as WEB server and creates map image on TEMP server at the same time.

⑦ WEB server provides the user with detailed information (POI and My Map information).

⑧ The TEMP server provides the user with a map image (file format GIF).

16 illustrates a case of viewing a route on a map.

① The user searches the business information category of the area.

② Request search of the relevant zone list from WEB server to DB server.

③ The DB server sends the code search list to the WEB server. The WEB server sends this data back to the user.

④ When the user designates the starting point, it goes up to the WEB server.

⑤ The starting point (E coordinate: N coordinate value, decimal) is stored as the cookie value of the user (client).

The destination designation is the same as the process from ① to ⑤.

⑥ A user (client) requests a route from a web server.

⑦ The variables ST_E, ST_N, ED_E, ED_N, FIG1, FIG2 and FIG3 are transmitted to the ROUTE server for the map generation request.

⑧ It saves the icon information (Ionxxxx.txt) on the map from the ROUTE server to the WEB server and simultaneously moves the generated map image to the TEMP server.

⑨ The WEB server provides the user (client) with the route search results (RT_ID, RT_NUM, Scl, E / N) and provides the map image (file type: GIF) stored in the TEMP server to the user (client).

The route search send and receive text structure is as follows.

Route search outgoing text (web to route server)

ST_E: Starting point E coordinate

ST_N: starting point N coordinate

ED_E: destination E coordinate

ED_N: destination N coordinate

Flg1: Operation Mode

1: route search request

2: Delete route search results

Flg2: Root Search ID

(xxxxxxxx 8 digits)

Flg3: for future expansion

Root Search Incoming Text (route to web server)

RT_ID: Search result ID

RT_NUM: Number of results

E: hardness

N: Latitude

Scl: level

If the navigation is selected on the screen 126, the navigation operation is performed as follows.

17 shows the process when the client uses navigation.

① Create location information on the user in GPS (coordinate calculation with east, north, Scl).

② The user sends the map number request to the ASP server.

③ ASP server registers client location with DB server.

(4) The ASP server requests a map from the MAP server.

⑤ GIF file is saved in WEB server in MAP server.

⑥ MAP server sends map number response to ASP server.

⑦ The ASP server sends the map number response to the user.

⑧ Deliver the map request from the user to the WEB server.

⑨ WEB server sends a response to the requested map.

Referring to FIG. 18, when the "telephone" button is selected on the screen 100, a screen of 148 is displayed. If a free international call is selected on the screen of 148, a telephone number dial screen of 150 is displayed. If a telephone number is entered, a screen of transmission progress status of 152 is displayed.

19 shows an operation of sending a mail.

① Sender sends mail, message input, sender's name, mail account, recipient's account, message, signpost, map information (latitude, longitude, business name, level) to WEB server.

② WEB server sends the mail by protocol SMTP.

Referring to FIG. 20, when the "kimchi" button is selected on the screen 100, a screen of 154 is displayed. If you select the desired kimchi on the screen of 154, the description of the selected kimchi of 156 appears, and when you make a reservation, the text message and the reservation number indicating that you have been successfully diminished are displayed.

Referring to FIG. 21, when the "cab" button is selected on the screen 100, a screen of 160 is displayed. If you select a taxi call on the screen of 160, a text message that 162 taxis are coming is displayed.

Referring to Figure 22, showing the process of the Taxi call is a block diagram showing the client first,

① When requesting location registration, enter WEB1 server.

② On the WEB1 server, the client location is registered to the DB server.

③ When client requests information, TAXI application requests client information to WEB2 server at the same time.

④ If client location information search is performed from WEB1 to DB server, client location information search from WEB2 to DB server is performed at the same time.

⑤ Sending client location information from DB server to each WEB1,2 server is done at the same time.

(6) The client location information response sent from WEB1 to the client and the client location information response from the WEB2 server to the TAXI application are performed at the same time.

⑦ Request complete response from WEB application to WEB2 server.

⑧Respond from the WEB2 server to the DB server.

From the client side, the processes of ③, ④, ⑤, and ⑥ are repeated until the response is written in the location information. In terms of TAXI application, ③, ④, ⑤, ⑥ processes are repeated, and when this process is repeated, ⑦, ⑧ processes are performed.

Referring to FIG. 23, when the "conversation" button is selected on the screen 100, the screen of 160 is displayed. When the conversation is selected on the screen of 160, the sentence selection of the sentence selection of 164 is displayed. When the sentence is selected, the text message screen of Please press the button 168 is displayed. If you press the button, the corresponding Korean text message and voice are output.

24 shows a painting method. Conversation icons can be played with Koreans without a guide because if you input a sentence according to the situation, the sentence is translated into Korean and played.

Shows how conversations are done over the air

① The user requests a classification list from the ASP server.

② The ASP server sends a response to the classification list to the user.

③ The user requests an item from the ASP server.

(4) The ASP server sends a response to the corresponding item to the user.

⑤ The user requests the wave file for the situation.

⑥ WEB server sends wave file to user.

Here, the ASP server is a server that manages access and dispatch like the existing WEB server, and the WEB server is a server that stores wave files like the existing TEMP server.

Referring to FIG. 25, when the “SOS” button is selected on the screen 100, 170 screens are displayed. If you select SOS on the screen of 170, you will be connected to the 24-hour information service of the Tourism Organization.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the present invention without departing from the spirit and scope of the invention described in the claims below. I can understand that you can.

As described above, in the present invention, various tourist information can be obtained quickly and easily at low cost through wireless internet anywhere in the world with a portable terminal with a built-in GPS module.

In addition, in the present invention, it is possible to provide various additional services such as tourist map, foreign language information, call taxi service or rescue request as well as tourist information.

Claims (15)

Detecting, at a portable terminal, a current location through a GPS receiving module, and transmitting the detected current location information and tour guide request information to a tour guide server through a wireless Internet network; Registering a current location of the received portable terminal, creating map image information in response to the tourism guide request information, and transmitting the generated map image information to the portable terminal through the wireless Internet network; And And displaying the detected current location and the requested tour guide information on the received map image in the portable terminal. The remote tourism device of claim 1, wherein the portable terminal includes longitude and latitude data as current location information detected by a GPS receiving module, command data, flag data, and file name data as tour guide request information. Guide way. The remote tour guide of claim 1, wherein the server calculates a route to a current location and a destination in response to the longitude and latitude data of the current location information and the tourist information request information, and displays the route on a map. Way. The method of claim 1, wherein the portable terminal and the server can request and transmit additional information. The method of claim 4, wherein the additional information is special product information or conversation information. The system of claim 1 wherein the system is When the friend ID is input in the portable terminal, the remote tourist guide method characterized in that the server searched for the location of the friend and displayed on the map. The system of claim 1 wherein the system is Remote call guide method, characterized in that for connecting a call taxi through a taxi company from a taxi call city server in a portable terminal. The system of claim 1 wherein the system is Remote tour guide method characterized in that the server connected to the information waiting for 24 hours when the SOS request from the portable terminal. The system of claim 1 wherein the system is Remote tour guide method characterized in that the connection of the Internet phone from the server when the phone request from the portable terminal. The system of claim 1 wherein the system is Remote tour guide method characterized in that to connect the shopping reservation service from the server when the shopping request from the portable terminal. The system of claim 1 wherein the system is Remote tour guide method characterized in that the request for a tourism recommendation course in the portable terminal provides a pre-programmed tourism recommendation course in the server. The system of claim 1 wherein the system is Remote tour guide method, characterized in that to provide the tourist helper information from the server when the tour assistant requests from the portable terminal. The system of claim 1 wherein the system is When the navigation request from the portable terminal, the remote tourism guide method characterized in that the server provides a navigation service according to the current location. Detect the current location through the GPS receiving module, transmit the detected current location information and the tour guide request information to the tour guide server through the wireless Internet network, and the detected current location and the requested tour on the received map image A portable terminal for displaying guide information; And And a tourist information service server that registers the current location of the received mobile terminal, creates map image information in response to the tourist information request information, and sends map image information created through the wireless internet network to the mobile terminal. Remote tour guide device characterized in that. The remote tour guide system according to claim 1, wherein the portable terminal is a PDA device including a GPS module and a wireless internet module.