KR20030062990A - Service system using mobile terminals - Google Patents

Abstract

PURPOSE: A service system using a mobile terminal is provided to enable a user to transmit site information to a GIS server, if data of the GIS(Geographical Information System) server are different from information contents inside a PDA(Personal Digital Assistant). CONSTITUTION: A user connects a CDMA(Code Division Multiple Access) wireless data communication network by using a CDMA module arranged in a PDA(S10), and requests a desiring service to a host computer(S11). The PDA searches a Web server, which is the host computer, and a GIS data server(S12) to request the service(S13). The servers provide a proxy for a corresponding information server to the PDA(S14). The PDA calls the corresponding information server, e.g. the GIS data server(S15) to request desired information(S16). The GIS data server transmits the requested information to the PDA through a gateway, a DSU(Digital Service Unit), and the CDMA wireless data communication network(S17). The PDA displays the received information on a display window(S18). The user checks whether the displayed information is coincident with site information checked by himself/herself(S19). If so, the steps are ended, and if not coincident, the user corrects the received information by referring to the site information(S20), to transmit the corrected information to a host system through the CDMA wireless data communication network(S21). And a manager of the host system confirms the transmitted information and updates the information stored in the GIS data server and a storage unit(S22).

Description

Service system using mobile terminals {Service system using mobile terminals}

The present invention relates to a service system using a personal digital assistant (PDA, hereinafter referred to as "PDA"), and in particular, a Java application program embedded in a PDA to support geographic information, transmission and transformation operation, and maintenance support. It relates to a service system using a mobile terminal that can be utilized for.

In general, a PDA is a portable information terminal that is about the size of a mobile phone and uses a device such as a pen to input and process information instead of a keyboard. In particular, PDA has a feature that can be easily connected to the network because it has infrared communication, communication using a serial port, communication using a modem.

These PDAs provide personal information management programs such as calendars, address books, and notepads by default, and can freely exchange data through a connection with a PC. In addition to the built-in programs, new programs can be installed and used. In addition, recently, due to the development of wireless communication, Internet access through a PDA is possible, and PDAs are newly pioneering the wireless Internet field.

In other words, PDAs can automatically handle data collection, data exchange, activity monitoring, work assignments, order entry, billing, and customer database access in addition to personal information management through PDAs and PDA data concentrators (eg CellVic Multicradle). Reporting and management, which can be used for transportation and inventory management, accident reporting, parking control, emergency services and repairs, meter reading, maintenance and auditing functions, etc. It is widely used in the financial industry, where sales agents of insurance and mutual fund companies can immediately print and analyze product and price information in front of customers, collect customer-related information, and send it to corporate headquarters.

The world's operating systems for PDAs, Windows CE, EPOC and Palm OS, each have market dominance under different geographical bases. Currently, Palm Os and Windows CE account for more than 80% of the market. The market is growing, especially in developed countries, and it is growing at more than 30% every year. The PDA market is expected to expand rapidly with the development of technologies such as acceleration of integration between mobile phones and PDAs, the combination of streaming and PDA, and application of wired / wireless synchronization technology.

Currently, there is a growing interest in LINUX-based PDAs, which have no royalty payments and can have the same low-cost and identical performance on the same hardware platform. In addition, with the advent of JAVA, the development of Java applications on all platforms is possible and will have a dominant influence in the future. Therefore, all applications on PDAs are likely to be Java-based.

In recent years, attempts have been made to mount Java Virtual Machines (JVMs) on such PDAs, which allow Java applications to run on PDAs. Because Java applications are very portable, the advantage is that programs developed on one system work the same on other systems.

This Java application is a Java-based network distribution technology that enables the identification of peripheral devices in a network regardless of protocols. It controls home appliances such as PCs, peripherals, mobile phones, pagers, and home appliances in a single network environment. In particular, it can be used in an analog based network environment. In other words, using a Java application program, hardware or software separated from each other are recognized through a network, and data communication between each other is possible.

In addition, since Java applications can utilize peripheral devices regardless of operating system (OS), there is an advantage in that the distributed environment between network devices can be enhanced by reducing the data connection load generated when data is controlled by a single operating system. .

An example of a technology using the above advantages is disclosed in Korean Patent Laid-Open No. 2001-0029046.

That is, the publication includes a supplementary information server which stores contents of various supplementary information in advance, a lookup server that performs matching with a PDA terminal, and stores in advance the types of supplementary information that can be serviced from the supplementary information server. Searching for a lookup server when a service request signal for providing additional information is input by the terminal; If the lookup server is found, requesting an additional service corresponding to the request signal from the lookup server; Reading a variety of additional types of additional information stored in the lookup server, and searching for an additional information server providing a requested additional service; If the additional information server is found, providing a proxy for the additional information server to the PDA terminal; Disclosed is a technique that includes retrieving proxy information from a PDA terminal and transmitting the proxy information to the PDA terminal.

In addition, in Korean Laid-Open Patent Publication No. 2001-0000573, since it is difficult to apply in a task that frequently changes its position or a task requiring input of real-time data, it cannot be escaped from simply showing a map and a position, and also in a small terminal. There is disclosed a technique for solving the problem that it is not very easy to control the map data by operating a button and the user requires a cumbersome keyboard operation.

That is, in the publication, as shown in FIG. 1, a step of displaying a location of a mobile terminal on a screen by cellular tracking of a GPS and a mobile phone base station, and inputting detailed attribute information at a point where the location of the terminal is expressed In the step of storing in the database, the image taken by the digital camera or the video camera with the attribute information related to the feature is transmitted to the central server's database using wireless communication as one of the attribute information, and stored in the other terminal. Enabling to display the map information and the attribute information of the surroundings in relation to the location of the mobile terminal by receiving the relevant information from the central server in the form of a vector or raster image by a specific button or a predefined voice. The technique made is disclosed.

On the other hand, general geographic information system is an information system that integrates and processes geographic data occupying spatial location and related attribute data and is used to efficiently collect, store, update, process, analyze and output various types of geographic information. It is the overall organization of hardware, software, geographic data, and human resources. However, the publication does not disclose any of these techniques.

In addition, the PDA is based on Windows CE on a high-speed CPU and a large amount of memory, and constitutes a relatively expensive general-purpose system with a built-in CDMA module, and includes Geographical Information (GIS) including a Global Positioning System (GPS) or a Navigation System (Navigation System). It is possible to link service with the system, but it has caused considerable delay in the enterprise service because expensive GIS organization should be assigned to PDA.

In other words, the technique disclosed in the above publication merely discloses a method for a user to confirm map information or geospatial information using a PDA, and the user is connected to a GIS system on a PDA according to a site condition. No technique is disclosed for the input and output.

An object of the present invention is to solve the problems of the prior art as described above, when the data of the GIS server and the information content embedded in the PDA is different, using a mobile terminal that the user can transmit the field information to the GIS server It is to provide a service system.

It is another object of the present invention to provide a service system using a mobile terminal that carries only a PDA when a user travels on-site for transmission and transmission operation and maintenance support, and can carry out work without bringing design drawings and documents.

It is still another object of the present invention to provide a service system using a mobile terminal that can be easily extended by making an internal source code of an application program object-oriented.

1 is a system diagram in the Internet GIS using a conventional mobile terminal

2 illustrates a typical mobile communication system.

3 is a configuration diagram of a service system using a mobile terminal according to the present invention;

4 is a flowchart illustrating a process of executing a service system using a mobile terminal according to the present invention.

Explanation of symbols on the main parts of the drawings

301: GIS data server 302: storage means

303: backup device 304: web server

305: gateway 306: file server

307: Computer System 311: DSU

312 CDMA wireless data communication network 313 PDA

In order to achieve the above object, a service system using a mobile terminal of the present invention is a service system for a user to input and output various types of information in a field using a mobile terminal, the server storing the contents of the various information, A wireless data communication network for wirelessly connecting the server and the mobile terminal, display means for displaying the information requested by the user on the mobile terminal through the wireless communication network, information displayed on the display means, and information checked by the user in the field Comparison means for comparing information, when the information stored in the server is different from the information stored in the server as a result of comparison in the comparison means, on-site information input means for inputting information on the site, through the wireless data communication network Information input by the field information input means; Transmitting means for transmitting to the server, and updating means for updating the information stored in the server with the site information transmitted to the server by the transmitting means.

In the service system using the mobile terminal of the present invention, the wireless data communication network is a CDMA wireless data communication network, and the mobile terminal is a PDA having a CDMA module.

Further, in the service system using the mobile terminal of the present invention, the CDMA module is characterized in that it is embedded in the PDA or detachable.

In the service system using the mobile terminal of the present invention, the PDA operating system is characterized by using any one of Windows CE, Palm OS, commercial RTOS, and Linux.

In the service system using the mobile terminal of the present invention, the PDA is equipped with a Java virtual machine so that the internal source code of the application program is object-oriented.

Further, in the service system using the mobile terminal of the present invention, the various pieces of information are geographic information of the site location, facility drawing information of the site, facility operation data of the site, and process data of facility construction of the site. Is characterized in that the user of the field can be changed.

Further, in the service system using the mobile terminal of the present invention, the mobile terminal further comprises confirmation means for confirming the information updated by the update means, wherein the updated information is displayed on the display means. It features.

Best Mode for Carrying Out the Invention Embodiments of the present invention will be described below with reference to the drawings.

In addition, in drawing, the same code | symbol is attached | subjected to the same code | symbol and the repeated description is abbreviate | omitted.

First, a code division multiple access (CDMA) system, which is a general mobile communication system, will be described with reference to FIG. As shown in FIG. 2, the CDMA system includes a mobile station (MS) 10, a base station (MS) 20, a base station management system (BSM) 30, a switching center system (MSC) 40, and a home location register ( HLR) system 50 or the like.

In addition, in FIG. 2, a mobile station (MS) 10 is provided with a service, and a base station (BS) 20 is a base station transceiver (BTS) for transmitting and receiving signals with the mobile station 10. A base station controller (BSC: Base Station Controller) 24 for managing the base station transceiver subsystem (22) and the base station 20. A base station manager (BSM) 30 operates and manages a base station controller 24, and a switching center system, a so-called mobile switching center (MSC) 40, manages the base station 20 through a public switched telephone network ( PSTN: Public Switched Telephone Network The home location register (HLR) system 50 manages the information and location information of the mobile subscriber.

Meanwhile, the HLR system 50 of such a mobile communication system has an operation and maintenance processor (OMP) for operation and maintenance management of the system therein, OMP is a graphical user interface to the system operator (GUI: Graphic User Interface) provides the function to handle various commands for operation and maintenance, and to graphically express the failure and status of the HLR system.

That is, the present invention uses a CDMA wireless data communication network as shown in FIG.

Next, the configuration of the present invention will be described with reference to FIG.

3 is a block diagram of a service system using a mobile terminal according to the present invention.

In FIG. 3, reference numeral 301 denotes a GIS data server for transmitting and receiving map information, design drawing information, transmission and transformation information, and the like, and reference numeral 302 denotes storage means for storing data relating to the GIS data server 301. And 303 are backup devices for preventing the loss of data recorded in the storage means 302.

In addition, 304 is a Web server for transmitting and receiving information about GIS to a plurality of users on the Internet, and 305 is a user's remote terminal and host system (GIS server 301) in a large-scale communication system. , A gateway for a network-to-network connection).

Reference numeral 306 denotes a file server for managing files of the host system, and 307 denotes a computer system for inputting / outputting information about the GIS to a workstation or a personal computer and managing the information.

308 is a printer connected to the file server 306 or the computer system 307 to print and output the information required by the user or administrator, 309 is for printing a large design drawing, etc. of the GIS information A plotter 310 is a scanner for inputting design information about a GIS into a host system or a computer system.

311 is a digital service unit (DSU) for connecting the gateway 305 and the CDMA wireless data communication network 312. In the present invention, the CDMA wireless data communication network 312 uses a communication network as shown in FIG.

313 is a PDA incorporating a CDMA module, which is connected to a host system via a CDMA wireless data communication network 312. Therefore, the user can collect, store, update, process, and analyze geographic information according to the situation in the field through the PDA 313 and the host system.

The PDA 313 can be connected to a GIS system using a Java Virtual Machine (JVM), and the operating system (OS) includes Windows CE, Palm OS, commercial RTOS, and Linux. The main memory is 32MB or more, and the wireless interface uses a CDMA module. This CDMA module can be detachably used for card type or can be mounted in a PDA as a built-in type.

In addition, since the PDA 313 according to the present invention uses a Java virtual machine, the program can be operated without being limited to any hardware platform, and data is linked with a GIS system through an ultra-high-speed wireless CDMA wireless data communication network 312. This speeds up the collection process, and has the same mapping function as the system of the existing desktop computer environment, GIS software system function and database function. In addition, it supports industry-standard sharpfile and LizardTech image language formats, and user-collected data can be easily stored in GIS system. Of course, the transfer of data between the GIS system and the PDA 313 via the CDMA wireless data communication network 312 is executed by being encrypted.

Next, a method of executing a service system using a mobile terminal according to the present invention shown in FIG. 3 will be described with reference to FIG. 4.

4 is a flowchart illustrating a process of executing a service system using a mobile terminal according to the present invention.

A user connects to the CDMA wireless data communication network 312 using a CDMA module provided in the PDA 313 to use services such as map information, design drawing information, and transmission and transformation information in the field (S10).

Next, the user manipulates the PDA 313 to request the host computer for a desired service (S11). If there is no service request from the user, only the connection state is maintained. When there is a request for a service from a user, the PDA 313 searches for a web server 304 and a GIS data server 301 which are host computers (S12), and requests the user-selected service from these servers (S13).

The server requesting the service searches for a server that provides information corresponding to the user's request from each information registered to the user, for example, map information, design drawing information, and transmission / transmission information, and then establishes a proxy for the information server. It provides to 313 (S14).

The PDA 313 calls the server regarding the corresponding information, for example, the GIS data server 301, using the proxy provided from the server (S15), and then requests the information input by the user (S16). The GIS data server 301 transmits the requested information to the PDA 313 through the gateway 305, the DSU 311, and the CDMA wireless data communication network 312 in response to the request of the PDA 313. (S17).

As the PDA 313 displays the transmitted information on the display window of the PDA 313 (S18), the user recognizes the desired information.

Next, the user compares and determines whether the information displayed on the PDA 313 matches the information of the site identified by the user, for example, the information of the transmitted design drawings and the status of the site information checked by the user (S19). If this information is matched, the user processes his work according to the transmitted information and the system is terminated.

On the other hand, if the information transmitted from the server and the information of the site is inconsistent, the user uses the correction function in the PDA 313 to modify the transmitted information to the status information of the site (S20). The information modified as described above is transmitted to the host system through the CDMA wireless data communication network 312 (S21), and the administrator of the host system checks the information transmitted through the computer system 307 or the like, and if necessary, the server 301. Information stored in the storage means 302 is updated (S22). The updated information is displayed again on the display window of the PDA 313, and the operation of step 19 is repeated.

The user confirms that the previously transmitted information has been updated according to the information transmitted by the user, and ends the process of the site.

As mentioned above, although the invention made by this inventor was demonstrated concretely according to the said Example, this invention is not limited to the said Example and can be variously changed in the range which does not deviate from the summary.

That is, in the above description, the description has been made by using a CDMA wireless communication network. However, the present invention is not limited thereto, and the above operation can be performed by wire through a data cable as necessary.

As described above, according to the service system using the mobile terminal of the present invention, since the program is not limited to the hardware platform by providing the GIS application program using Java on the PDA, it is possible to utilize the low-cost terminal supported by Java. It is possible to do so, and thus reduce the operating cost of the system.

In addition, according to the service system using the mobile terminal of the present invention, it is possible to efficiently manage the process of the construction and operation data of the facility in transmission and transmission management, gas management, traffic management, water and sewage management, port management, land management, etc. The big effect is that the cost of managing infrastructure can be greatly reduced.

In addition, since CDMA is charged according to the amount of data transmission after connection of the CDMA wireless data communication network 312, the service system according to the present invention also has the effect that the use of inexpensive service is possible.

Claims (8)

In the service system for the user input and output various information in the field by using a mobile terminal, A server for storing contents of the various information, A wireless data communication network for wirelessly connecting the server and the mobile terminal; Display means for displaying information requested by a user in the server to the mobile terminal through the wireless communication network; Comparison means for comparing the information displayed on the display means with the information checked by the user in the field; Site information input means for inputting the information on the site, when the information stored in the server and the information checked by the user are different from each other in the comparison means; Transmitting means for transmitting the information input from the field information input means to the server through the wireless data communication network; And updating means for updating the information stored in the server with the site information transmitted to the server by the transmitting means. The method of claim 1, The wireless data communication network is a CDMA wireless data communication network, The mobile terminal is a service system using a mobile terminal, characterized in that the PDA with a CDMA module. The method of claim 2, The CDMA module is a service system using a mobile terminal, characterized in that embedded in the PDA. The method of claim 2, The CDMA module is a service system using a mobile terminal, characterized in that detachable to the PDA. The method of claim 2, The operating system of the PDA is a service system using a mobile terminal, characterized in that any one of Windows CE, Palm OS, commercial RTOS, Linux. The method of claim 5, The PDA is a service system using a mobile terminal, characterized in that the Java virtual machine is mounted. The method of claim 1, The above various information is geographic information of the site location, facility drawings of the site, facility operation data of the site, process data of facility construction of the site, The various information may be changed by the user in the field service system using a mobile terminal. The method of claim 1, Confirming means for confirming information updated by said updating means by a user of said mobile terminal, The updated information is displayed on the display means.