KR100933251B1 - WLAN service failure and quality management system and method - Google Patents

Abstract

The present invention discloses a system and method for installing a separate client program in a WLAN subscriber PC to manage WLAN failure record and quality of use when providing a WLAN service. The present invention provides a client PC using a wireless LAN, a quality measuring server for measuring quality, a management / log server for receiving and managing records and quality measurement data for a wireless LAN connection process recorded in the client PC, and accessing the management / log server. It includes a web server to query and output the stored data. According to the present invention, unlike a wired LAN service, a better service environment can be provided by efficiently managing a failure or service quality of a wireless LAN that is affected by the quality of use due to various factors such as a user's location or radio wave interference.

Description

Management System and Method for Failure and Quality of a Wireless Lan}

The present invention relates to a WLAN service failure record and quality management system and method, and more particularly, to a system for actively measuring and managing failures and quality of service occurring when a WLAN service is provided by a client program installed in a PC of a WLAN subscriber. It is about a method.

In general, the wireless LAN refers to a local area network (LAN) capable of high-speed Internet within a certain distance of a place where a wireless access device (AP) is installed. Unlike the existing wired LAN service, the WLAN service environment is affected by the quality of service use due to various factors such as user location or radio wave interference. Thus, it was not easy for a remote service manager to predict and manage the quality or obstacles experienced by each service user.

In order to overcome such disadvantages, there has been an attempt to collect and manage WLAN service usage information. In the conventional manual collection of information by hand, the collector collects data between wireless network networks by hand, and thus, there is a problem that the reliability of the collected data is high and the reliability of the data is increased according to the collector's collection method. .

Thus, a method of collecting information using a modem having a RLP (Radio Link Protocol) function of a wireless terminal through hardware and software devices external to the wireless terminal has been proposed. However, since this merely performs a modem function and a web site search and a TCP / IP data transmission / reception function are performed at an external device, there is a problem in that data that is different from the quality of experience experienced by the user using the WLAN service is generated. In addition, by using only RLP (Radio Link Protocol) there is a problem that the quality measurement of the TCP / IP and the terminal browser to operate the WLAN service in the WLAN terminal is not made.

In addition, another conventional technique is collecting information through packet analysis of a wireless LAN service provider's wired network, which is not only able to track a packet used by a real user, but also works with a user terminal for overall service quality and failure. There is a problem that can not be measured.

In order to solve the above problems, the present invention provides a more active and efficient wireless LAN service through a user computer, free from the existing limited and indirect information collection schemes for the failure and quality of use of wireless LAN service users. The aim is to manage faults and to perform quality measurements.

In order to achieve the above object, the present invention provides a client PC for automatically accessing a WLAN service, managing a failure record generated during the access process, and measuring a WLAN quality of service; A management / log server that receives data on a failure record and a quality measurement result from the client PC and stores the data in a database; A quality measurement server connected to the client PC to measure the quality of service of the WLAN; And a web server connected to the management / log server to provide the administrator with an inquiry, search, and analysis of the stored data.

 Preferably, the client PC includes a wireless LAN automatic connection unit for automatically connecting to a wireless LAN, a quality measurement performing unit for actively measuring quality by communicating with the quality measurement server, and a failure record and quality measurement in a wireless LAN automatic access process. It may include an integrated storage unit for storing the result, outputting the corresponding guide message to the user and transmitting to the management / log server.

Preferably, the WLAN automatic access unit may include a PC environment check unit for selecting a WLAN card and an automatic access unit for automatically accessing a WLAN service to the selected WLAN card.

Preferably, the quality measurement performing unit may include a quality measurement environment setting unit configured to receive an environment setting file from a management / log server and set a quality measurement item. The quality measurement server may be configured through periodic communication with a quality measurement server in the set environment. It may include a quality measuring unit for transmitting the quality measurement results and the quality measurement results to the integrated storage or directly to the management / log server to actively measure the WLAN service quality.

Preferably, the quality measuring unit may manually control the quality measuring server to measure the quality at the request of the user.

Preferably, the integrated storage unit may transmit the stored information together with at least one of user information, network information, and PC environment information when transmitting the stored information to the management / log server.

Preferably, the quality measurement server may measure at least one of data of the data transmission and reception speed and the quality of Internet telephone use (R value, MOS value).

Preferably, the web server may be connected to a database of the management / log server to query and search for a failure record, a quality measurement result, and network status information with a specific factor value and output the data to the web.

In another aspect, in a WLAN service failure and quality management system including a client PC, management / log server, quality measurement server, Web server, the wireless LAN automatic access unit for automatically connecting to the wireless LAN, the quality measurement Quality measurement execution unit to actively measure the quality by communicating with the server, integrated storage for storing the occurrence failure and quality measurement results in the wireless LAN automatic access process, and outputs the corresponding message to the user and the management / log server It may include wealth.

In another aspect, in order to achieve the above object, the client pc of the present invention selects a wireless LAN card available through the environment check of the client PC, the step of automatically accessing the wireless LAN after selecting the WLAN card and the After the WLAN connection may include performing a quality measurement through communication with the quality measurement server.

Preferably, selecting an available WLAN card through an environment check of the client PC may include executing the client PC, checking whether the WLAN card exists after the execution, and wherein the existing WLAN card is present. The method may include checking whether the WLAN card is a single WLAN card, automatically selecting one of the WLAN cards, and checking whether the selected WLAN card is available.

Preferably, the step of automatically accessing the WLAN after selecting the WLAN card comprises: checking a network setting, checking whether a Profile exists if the network setting is DHCP, and wireless LAN access equipment of the existing Profile ( Searching for AP), authenticating from the discovered WLAN access equipment (AP), and setting a network address after the authentication. The method may further include transmitting failure records recorded in the client PC to the management / log server after the WLAN card selection and access process.

Preferably, the step of performing quality measurement through communication with a quality measurement server after accessing the WLAN, receiving a configuration file from a management / log server, setting a quality measurement item with the received file and setting Periodically communicating with the quality measurement server in the environment may include the step of measuring the quality of the WLAN service.

Preferably, when the user of the client PC attempts to manually measure the WLAN service quality, if the quality measurement is already being performed, the user quality measurement may be performed after waiting until the measurement is completed, and the result may be output. In addition, when the quality measurement is completed, transmitting the quality measurement data recorded on the client PC to the management / log server, and recording the disconnection and signal weakness information generated during the use of the WLAN service to the client PC and transmitting to the management / log server. It may further comprise the step.

Preferably, the recording medium includes a recording medium on which a program for executing any one of the above methods is executed on a computer.

According to the present invention, a complicated WLAN connection process can be automatically performed through a client PC program. If a failure occurs in the connection process, another path is provided to facilitate the connection.

In addition, if a failure occurs during the connection process, the cause and solution are displayed as a message to the user. The failure record before and after the connection is sent to the management / log server, which allows the administrator to manage and analyze the cause of the failure. To help.

In addition, by actively measuring the quality of WLAN service in the client PC and transmitting the environment information of the user client PC, the service manager helps to provide a better quality service environment to the subscriber.

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

1 is a configuration diagram schematically showing a WLAN service failure and quality management system according to an embodiment of the present invention, Figure 2 is a detailed configuration diagram of a WLAN service failure and quality management system according to an embodiment of the present invention. .

1 and 2, the WLAN service failure and quality management system of the present invention includes a client PC 100, a management / log server 200, a quality measurement server 300, and a web server 400. It is composed.

The client PC 100, while the personal PC installed with a specific program using the wireless LAN service, automatically connects the PC to the wireless LAN while recording the connection process, the failure occurring during the management / log server 200 And transmits the quality measurement result measured by performing quality measurement by actively communicating with the quality measurement server 300 to the management / log server 200.

Specifically, the client PC 100 includes a wireless LAN automatic access unit 110, a quality measurement performing unit 120 and the integrated storage unit 130, which will be described in detail with reference to FIG.

The WLAN automatic access unit 110 is composed of a PC environment check unit 112 and an automatic connection unit 114, the PC environment check unit 112 is a wireless LAN card for using a WLAN service while the client program is executed. Is automatically selected. If a failure occurs in this process, a guide message can be output to the user regarding the cause and the task requested by the user.

The automatic connection unit 114 automatically connects the client PC 100 to the wireless LAN card selected by the PC environment checker 112. If a failure occurs in the connection process, the automatic connection unit 114 provides the user with a cause and a task requested by the user. You can output a guide message. In addition, it may attempt to reconnect to overcome the failure caused by switching to the sleep mode.

The guidance message and the corresponding occurrence of the failure output during the execution of the PC environment check unit 112 and the automatic connection unit 114 are stored in the integrated storage unit 130.

A flowchart in which the PC environment checking unit 112 and the automatic connecting unit 114 are performed will be described in detail with reference to FIGS. 3 and 4 to be described later.

The quality measurement performing unit 120 includes a quality measurement environment setting unit 122, a quality measuring unit 124, and a quality measurement transmitting unit 126. The quality measurement performing unit 120 periodically communicates with the quality measurement server 300 to actively perform quality. The measurement is performed and the measured quality data is stored in the client PC 100 and transmitted to the management / log server 200. The quality data may be integrated with the failure occurrence data and transmitted to the management / log server 200 together.

The quality measurement environment setting unit 122 receives an environment setting file from the management / log server 200 to determine an address, a quality measurement item (up / down data rate), and high quality VOIP of the quality measurement server 300. At least one of quality measurement (VOIPTESTG729, VOIPRVALUEG729, VOIPDMOSG729), high compression VOIP quality measurement (VOIPTESTG711, VOIPRVALUEG711, OIPDMOSG711), the threshold value (quality reference value) and the measurement cycle value for the quality measurement item are set.

According to the configuration, the client PC 100 generates a separate process to periodically measure the quality of the WLAN service, and separately, when the user has any quality measurement request, the quality measurement server 300 manually It can also be controlled to measure quality.

The quality measuring unit 124 periodically communicates with the quality measuring server 300 in the set environment to allow the quality measuring server 300 to actively measure the WLAN service quality.

The quality measurement transmission unit 126 receives the measured quality result from the quality measurement unit 124 and stores it in the integrated storage unit 130 and transmits it to the management / log server 200.

The integrated storage unit 130 receives and stores a failure record and a quality measurement result from the WLAN automatic access unit 110 and the quality measurement execution unit 120 and transmits the corresponding information to the management / log server 200. Do it. The transmitted data may be transmitted together with user information, network information, and environment information of the client PC 100.

The transmitted failure data includes ID (ID), time (TIME), name (NAME), MAC address of access AP (hereinafter referred to as "AP"), connection / failure / disconnection record (TITLE). ), DESCRIPTION, MAC Address, IP Address, Subnet, DefaultGW, Domain Name System (DNS), OSINFO, SSID (Service Set Identifier) SSID), a central processing unit (CPU), and a memory (MEMORY). In addition, the network status information may include at least one of WLAN adapter information (ADAPTER), status (STATUS), speed (SPEED), strength (STRENGTH), transmit bytes (SENT BYTES), received bytes (RECV BYTES). .

Herein, the MAC address refers to an address representing a station or an access port used in a medium access control sublayer (MACS) of a local area information network (LAN), and a subnet is an individual network constituting a network. It is to configure the connected subnetwork or internet. In addition, the default gateway (DefaultGW) refers to a computer or software that enables communication between networks using different communication networks and protocols in a computer network, and serves as a path between different types of networks. The OSINFO includes operating system requirement information about the referenced assembly or module, and the SSID is a device that connects to the Internet according to a signal transmitted from a wireless LAN access equipment (AP).

The adapter is a device used to connect two different parts, and the STATUS is the success or failure of the DL / 1 statement after being executed in the database, and is encoded by itself and written to the processing control block after each DL / 1 call is made. do. The application can check the state protection so that when a specific error or exception occurs, the program can detect it and take appropriate action, such as performing a specific processing routine or stopping the program.

Referring back to FIG. 1, the management / log server 200 is connected to the client PC 100 and receives the failure occurrence data and the quality measurement data therefrom to structure and store the data in the database. In addition, the quality measurement setting unit 120 may transmit the quality measurement configuration file to enable the setting.

The quality measurement server 300 is connected to the client PC 100 and periodically communicates with each other to measure the quality of the WLAN service. In the conventional passive quality measurement method, quality may be actively measured through periodic communication with the quality measurement performing unit 120.

The web server 400 is connected to the management / log server 200 when the manager is connected to the web server 300 provides the manager to query, search and analyze the data stored in the management / log server 200 The data is searched and searched with a specific factor value and the web page is output. In addition, by connecting to the database of the management / log server (200) can be searched and searched for a failure record, quality measurement results, network status information with a specific factor value and output to the web.

3 is a flowchart illustrating a method of automatically selecting a WLAN card of the PC environment inspecting unit according to an exemplary embodiment of the present invention.

Referring to FIG. 3, in the method of automatically selecting a WLAN card according to the present invention, a step in which a client PC is executed (S10), a step of checking the existence of a WLAN card after the execution (S12), and the existing wireless Checking whether the LAN card is a single WLAN card (S14), automatically selecting one of the WLAN cards (S16), and checking whether the selected WLAN card is available (S18). To configure. It will be described below in detail.

If the client PC fails to execute in step S10 of executing the client PC, the cause and error code thereof are output to the user as a guide message (S11) and the failure occurrence record is stored (S13). The client PC is then shut down.

When the execution of the client PC is normally performed (S100), a step (S12) of checking whether a WLAN card exists is present, and when the WLAN card does not exist, a guide message for the same is output to the user as described above (S11). The failure occurrence record is stored (S13). Similarly, the client PC is shut down.

Next, when the presence of the WLAN card in the step (S12) of checking the existence of the WLAN card, the step of checking whether there is one WLAN card or several individuals (S14). If there is only one WLAN card, there is no choice to check the switch on state (S15) and if it is ON, select the corresponding WLAN card (S16) and output a guide message to the user that the state is not ON (S17). To induce the user to switch jobs.

However, if there are a plurality of WLAN cards, check the switch ON state, and if there are multiple ON states, one of the plurality of WLAN cards is automatically selected (S16). Select a LAN card. On the other hand, in the step S15 of checking the on state of the switch, if there is no WLAN card in the switched on state, a guide message for the on state of the switch may be output to the user (S17) and the user may induce a change of work. .

Next, when any one of the wireless LAN card is selected (S16), a step (S18) of checking whether the selected WLAN card is enabled (Enable / Disable) is passed. In the case of enabling (S18) and checking the availability, the WLAN card is finally selected, but if it is in the disabled state, the process is automatically switched to the enabled state (S19). It is chosen.

Next, after the step S18 of selecting the enabled WLAN card, the method may further include a step S21 of checking the existence and the version of the window patch, in which case the window patch does not exist. If the upgrade is necessary because the old version may further include a step (S23) for requesting the user's work by outputting a message to the user. This matter is to go through the step (S25) that is stored in the client PC. On the contrary, if the latest version exists, the wireless LAN card may be further switched to the disabled state (S27).

4 is a flowchart illustrating a method for automatically connecting to a selected WLAN card of an automatic access unit according to an embodiment of the present invention.

Referring to Figure 4, the method for automatically accessing the selected WLAN card of the present invention comprises the steps of confirming the network settings (S130), the step of confirming the existence of the profile in the DHCP network settings (S132), the present Searching for a wireless LAN access device (AP) of the profile (S134), the step of performing an authentication procedure from the found wireless access point (AP) (S136) and setting the network address after the authentication (S138) configuration do. Specifically, it is as follows.

First, in the step S130 of checking the network setting, if the fixed IP is set and the fixed IP is set, the setting may be changed by using an arbitrary IP DHCP (S131). Here, DHCP (Dynamic Host Configuration Protocol) automatically assigns an IP when connecting to a network, thereby changing a fixed IP to an arbitrary IP.

Next, if the network setting is set to DHCP, go through the step (S132) of checking the existence of the profile, and if the profile does not exist, attempt to connect with the SSID (Service Set Identifier) for wireless LAN setting, and check the network connection state. After checking and re-authenticating, you can download the profile (S133). However, in the process of checking the network connection status, if the setting AP is not detected and there is no SSID (Service Set Identifier) for setting the wireless LAN, the connection is not saved and the failure record is stored in the client PC (S135) and the power saving mode ( Attempt to reconnect in the Sleep Mode (S137).

Next, in the step S134 of searching for the existing AP's WLAN access point AP, if there is no WLAN access point AP, the UE attempts to access an alternative AP (S139). However, if it is determined that the connection to the alternative access AP is failed as a result of the network access, it is considered that there is no available WLAN, and the failure occurrence record is stored in the client PC (S141), and reconnection is attempted in the sleep mode (S143).

In addition, after checking the strength of the Profile AP signal (S145), if the strength is weak, retry at least five times (S147) in the wireless LAN connection. In operation S 149, the device may attempt to reconnect in a sleep mode in operation S 151. At this time, if the wireless LAN access is successful, the wireless authentication process is continued.

 Next, if the strength of the AP signal is strong, or if the access attempt is successful in steps S147 and S151, if the wireless LAN authentication procedure is attempted, if the authentication fails, at least three retries (S136) and fails three times In step S153, the failure occurrence record is stored in the client PC, and the process returns to step S133 to attempt SSID connection for wireless LAN setting.

Next, upon successful WLAN authentication, the network address (IP address) setting (S138) is performed. If the IP address setting fails, the failure record is stored in the client PC (S155), and in the sleep mode. Attempt to reconnect (S157).

Next, in the method of automatically accessing the WLAN after selecting the WLAN card, when the network address setting step (S138) is completed, the method further includes the step of checking the Internet connection step (S159) and checking whether the agent needs to be updated (S165). Can be.

The Internet connection test step (S159) is that the connection is not established in the Internet connection test, if the test fails, storing the failure record in the client PC (S161) and retrying the connection test at intervals of 1 minute in the sleep mode. (S163).

The step of checking whether the agent update is necessary (S165) may go through a step (S167) of automatically updating if necessary by determining whether an agent update is necessary.

When the final wireless LAN connection is completed (S169), the failure record and the guidance message that occurred during the transmission to the management / log server (S170).

5 is a flowchart illustrating a method of performing quality measurement by accessing a client PC according to an embodiment of the present invention.

Referring to FIG. 5, the method for performing quality measurement by communicating with the quality measurement server 300 by the client PC 100 of the present invention may include receiving an environment setting file from the management / log server 300 (S280). Setting the quality measurement item with the received file (S282) and periodically communicating with the quality measurement server 300 according to the set environment setting value, and actively measuring the quality of the WLAN service (S284); It is composed. Specifically, it is as follows.

First, the receiving of the configuration file (S280) after completing the WLAN connection The configuration file may be received from the management / log server 200.

Next, the step of setting the quality measurement item to the received file (S282) can specify the quality data to be measured, so that the address of the quality measurement server 300, the quality measurement item, the threshold for the quality measurement item (quality The quality measurement may be measured by changing and setting at least one parameter of the reference value) and the measurement period value.

The quality measurement item may be an up / down data rate of data, high quality VOIP quality measurement, and high compression VOIP quality measurement item. High quality VOIP quality measurement may be for VOIP TEST G729, VOIP RVALUE G729, VOIP DMOS G729, and high compression VOIP quality measurement may be for VOIP TEST G711, VOIP RVALUE G711, and OIPD MOS G711.

Next, the step (S284) of periodically communicating with the quality measurement server 300 in the set environment to measure the quality of the WLAN service, unlike the conventional method, the quality measurement server 300 periodically from the client PC (100) By actively communicating with and collects quality measurement data, and transmits the result to the management / log server 200 (S300).

In addition, the user of the client PC 100 may manually measure the WLAN quality of service (S290), and the user commanded to perform the WLAN quality of service manually (S290), but if the quality measurement is already being performed The user quality measurement can be performed (S294) after waiting until the measurement is completed (S293), and the above result is output to the monitor of the client PC (S296). In addition, the result may be transmitted to the management / log server 200 (S300).

Furthermore, the client PC 100 stores in the client PC 100 about the occurrence of a failure during the use of the WLAN service such as disconnection or weak signal generated after the WLAN connection by itself, and stores the result to the management / log server 200. Transmission (S300).

While specific embodiments of the present invention have been described, it will be apparent to those skilled in the art that the present invention is merely exemplary and the present invention is not limited thereto. In the above description, the terms "transmit", "transmit", "receive", and the like of a signal or data are not only directly transmitted from one component to another component, but also through other components. Includes delivered. In particular, "transmitting" or "sending" a signal or data to one component indicates the final destination of the signal or data and does not mean a direct destination. The same is true for the "reception" of a signal or data.

1 is a configuration diagram schematically illustrating a WLAN service failure and quality management system according to an exemplary embodiment of the present invention.

 2 is a detailed configuration diagram of a WLAN service failure and quality management system according to an embodiment of the present invention.

3 is a flowchart illustrating a method of automatically selecting a WLAN card of the PC environment inspecting unit according to an exemplary embodiment of the present invention.

4 is a flowchart illustrating a method for automatically connecting to a selected WLAN card of an automatic access unit according to an embodiment of the present invention.

5 is a flowchart illustrating a method of performing quality measurement by accessing a client PC according to an embodiment of the present invention.

Claims (35)

A client PC for automatically accessing a WLAN service, managing a failure occurring in the access process, and measuring a WLAN quality of service; A management / log server that receives data on a failure record and a quality measurement result from the client PC and stores the data in a database; A quality measurement server connected to the client PC to measure the quality of service of the WLAN; And And a web server connected to the management / log server to provide a manager to search, search, and analyze the stored data. The method of claim 1, wherein the client PC, A wireless LAN automatic connection unit for automatically connecting to a wireless LAN; A quality measurement performing unit communicating with the quality measurement server to actively measure quality; And WLAN failure, characterized in that it comprises an integrated storage unit for storing the occurrence failure and the quality measurement result in the automatic WLAN access process, and outputs the guidance message and the stored information to the management / log server to the user And quality control system. The method of claim 2, wherein the wireless LAN automatic connection unit, PC environment check unit for selecting a wireless LAN card; And WLAN service failure and quality management system, characterized in that it comprises an automatic connection for performing a wireless LAN service automatic access to the selected WLAN card. The method of claim 2, wherein the quality measurement performing unit, A quality measurement environment setting unit configured to receive a configuration file from the management / log server and set quality measurement items; A quality measuring unit configured to actively measure the quality of service of the WLAN by periodically communicating with the quality measuring server in the set environment; And And a quality measurement transmission unit which transmits the quality measurement result to the integrated storage or directly to the management / log server. The method of claim 4, wherein the quality measuring unit, WLAN service failure and quality management system, characterized in that the quality measurement server manually controls to measure the quality upon user request. The method of claim 2, And the integrated storage unit transmits the stored information together with at least one of user information, network information, and PC environment information when transmitting the stored information to the management / log server. The method of claim 1, wherein the quality measurement server, A WLAN service failure and quality management system, characterized in that measuring at least one of the data transmission and reception speed and the quality of the Internet telephone use (R value, MOS value). The method of claim 1, wherein the web server, Wireless LAN service failure and quality management system, characterized in that for connecting to the database of the management / log server, the failure occurrence record, quality measurement results, network status information to search and search by a specific factor value to the web. In the WLAN service failure and quality management system including a client PC, management / log server, quality measurement server, Web server, The client PC, A wireless LAN automatic connection unit for automatically connecting to a wireless LAN; A quality measurement performing unit communicating with the quality measurement server to actively measure quality; And And an integrated storage unit for storing the occurrence failure and the quality measurement result during the automatic WLAN access and outputting the corresponding guidance message to the user and transmitting the result to the management / log server. The method of claim 9, wherein the wireless LAN automatic connection unit, PC environment check unit for selecting a wireless LAN card; And And an automatic connection unit for automatically performing a wireless LAN service connection to the selected wireless LAN card. The method of claim 9, wherein the quality measurement performing unit, A quality measurement environment setting unit configured to receive a configuration file from the management / log server and set quality measurement items; A quality measuring unit for actively measuring the quality of service of the WLAN by periodically communicating with the quality measuring server in the set environment; And And a quality measurement transmitter for transmitting the quality measurement result to the integrated storage or directly to the management / log server. The method of claim 11, wherein the quality measuring unit, Client PC, characterized in that the quality measurement server manually controls to measure the quality at the user's request. The method of claim 9, And the integrated storage unit transmits together with at least one of user information, network information, and PC environment information when transmitting to the management / log server. (a) selecting an available WLAN card through an environment check of the client PC; (b) automatically accessing a wireless LAN after selecting the wireless LAN card; And and (c) performing quality measurement through communication with a quality measurement server after the wireless LAN connection. The method of claim 14, wherein step (a) comprises: (a-1) running the client PC; (a-2) checking the existence of the WLAN card after the execution; (a-3) confirming whether the existing WLAN card is a single WLAN card; (a-4) automatically selecting one of the WLAN cards; And (a-5) Checking the availability of the selected WLAN card, the WLAN automatic access and quality measurement method comprising the. The method of claim 15, If the client PC is not running in the step (a-1) or if the wireless LAN card does not exist in the step (a-2), a guide message about the cause and error is output and the failure occurs. Wireless LAN automatic access and quality measurement method, characterized in that stored in the client PC. The method of claim 15, And after the step (a-3), outputting a user guide message for switching on if none of the wireless LAN cards in which the switch of the checked wireless LAN card is on exists. LAN automatic connection and quality measurement method. The method of claim 15, In the case of (a-5), if the selected WLAN card is not in the available state, the WLAN automatic access and quality measurement method, characterized in that for automatically changing to the available state. The method of claim 15, After the step (a-5) checks the existence and version of the window patch, if the window patch does not exist or is an older version, further comprising the step of outputting a window patch guide message and storing on the client PC WLAN automatic access and quality measurement method. The method of claim 15, After the step (a-5), the wireless LAN card, the wireless LAN automatic access and quality measurement method further comprising the step of switching to the disabled (disable) not selected. The method of claim 14, wherein step (b) comprises: (b-1) checking network settings; (b-2) checking whether a Profile exists if the network configuration is DHCP; (b-3) searching for a wireless LAN access equipment (AP) of the existing Profile; (b-4) authenticating from the discovered WLAN access equipment (AP); And (b-5) WLAN automatic access and quality measurement method comprising the step of setting a network address after the authentication. The method of claim 21, If the network configuration is set to a fixed IP in the step (b-1), the wireless LAN automatic access and quality measurement method characterized in that for automatically changing the settings to use DHCP. The method of claim 21, If the Profile does not exist in the step (b-2), access the wireless LAN setting SSID, re-authenticate, download the profile, and generate the profile. And storing and attempting to reconnect to the WLAN. The method of claim 21, When searching for the Profile AP in step (b-3) but not found, attempts to connect to an alternate AP, and if the connection attempt fails, saves the failure to the client PC and attempts to reconnect. Access and quality measurement methods. The method of claim 21, After the step (b-3), the strength of the Profile AP signal is checked. If the strength is weak, the method further comprises retrying the WLAN connection, storing the occurrence of the failure in the client PC, and attempting to reconnect. WLAN automatic access and quality measurement method. The method of claim 21, When the wireless LAN authentication fails in the step (b-4), storing the failure in the client PC and retrying the SSID connection for wireless LAN setting. The method of claim 21, In the case of failing to set a network address in the step (b-5), the wireless LAN automatic access quality measurement method, characterized in that the failure occurs in the client PC to attempt to reconnect. The method of claim 21, If the Internet connection test after the step (b-5) fails to connect to the Internet, the wireless LAN automatic access and quality measurement method, characterized in that further comprising the step of storing the failure occurs and retry the connection test . The method of claim 21, Checking whether the agent needs to be updated after the step (b-5), and if necessary, performing the update. The method of claim 14, And transmitting the failure occurrence records recorded in the client PC to the management / log server when the WLAN connection is completed after the step (b). The method of claim 14, wherein step (c) comprises: (c-1) receiving a configuration file from a management / log server; (c-2) setting a quality measurement item with the received file; And (c-3) measuring the quality of a WLAN service by periodically communicating with a quality measuring server in the set environment. 15. The method of claim 14, wherein step (c) When the user of the client PC attempts to measure the WLAN service quality manually, if the quality measurement is already being performed, the user performs the quality measurement after waiting until the measurement is completed, and outputs the result of the WLAN. Automatic connection and quality measurement method. The method of claim 14, And transmitting the quality measurement data recorded in the client PC to the management / log server when the quality measurement is completed after the step (C). The method of claim 14, And recording the disconnection and signal weakness information generated during the use of the WLAN service after the step (c) to the client PC and transmitting the information to the management / log server. A recording medium having recorded thereon a program for executing the method of any one of claims 14 to 34 on a computer.

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