KR20060024714A - Software automatic upgrade system and method of terminal connected to AP - Google Patents

Abstract

The automatic software upgrade system and method of a terminal connected to an AP according to the present invention directly downloads the latest software of a wireless LAN terminal from the upgrade server through the Internet, stores it in a flash memory, and then checks software version information of each wireless LAN terminal. It's an automatic upgrade to mass provisioning. Therefore, compared to a method in which an AP receives a package from an upgrade server, stores it, and then transmits it to an internal network, it is possible to increase the reliability of the software package and to improve the reliability of the software package. In upgrading the software of the terminal, it is possible to solve the problem of transmitting / receiving a message according to the use of NAT by using the resources of the local network.

WLAN terminal, AP, upgrade server, Internet, NAT,

Description

System and method for software automatic up-grade of mobile connection access point}             

1A is a functional block diagram showing the configuration of a network of a conventional wireless LAN terminal;

1B is a functional block diagram showing the configuration of a software upgrade apparatus of a conventional wireless LAN terminal;

1C is a functional block diagram showing another configuration of a software upgrade apparatus of a conventional wireless LAN terminal;

2 is a functional block diagram showing the configuration of the software automatic upgrade system of the terminal connected to the AP according to an embodiment of the present invention;

FIG. 3 is a functional block diagram illustrating a detailed configuration of an AP of an automatic software upgrade system of a terminal connected to an AP according to FIG.

4 is a functional block diagram showing a detailed configuration of a wireless LAN terminal of the software automatic upgrade system of the terminal connected to the AP according to FIG.

5 is a flowchart illustrating a method for automatically upgrading software of a terminal connected to an AP according to an embodiment of the present invention;

6 is a flowchart illustrating a detailed operation of a first step S1 of a method for automatically upgrading a software of a terminal connected to an AP according to FIG. 3;

7 is a flowchart illustrating a detailed operation of the second step S2 of the method for automatically upgrading the software of the terminal connected to the AP according to FIG. 3;

8 is a flowchart illustrating a method for automatically upgrading software of a terminal connected to an AP according to this embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: upgrade server 200: AP

300: wireless LAN terminal

The present invention relates to a software upgrade system and method for a wireless LAN terminal. More particularly, the present invention relates to a dynamic IP configuration by using a dynamic host configuration protocol (DHCP) using an access point (AP) accessible to an upgrade server through an Internet connection. The present invention relates to an automatic software upgrade system and method for a terminal connected to an AP for automatically upgrading software of a plurality of WLAN terminals constituting a separate network through NAT (Network Address Translation).

In general, information terminals such as personal computers (PCs), notebook computers, PDAs, and the like, form a network called a local area network (LAN) in order to share information with each other. It can be divided into a wireless LAN configured by a wireless communication method using a wired LAN and an access point (hereinafter referred to as an "AP"), and in recent years, the spread of a wireless LAN has been rapidly achieved in establishing a local area network. have.

Wireless LAN technology, which uses radio frequency instead of wired cable as a transmission medium of WLAN, was originally developed for military use.In the early stage of the market, it was difficult to build wired LAN after commercial use. It has been limitedly used in special environments such as department stores and hospitals.

As described above, the wireless LAN is not only free to move, but also easy to expand and maintain, as data transmission / reception is performed in a wireless communication method using radio frequency (RF) or light.

Among the components of the AP of the wireless LAN, the wired processing unit provides a 10/100 BASE-T Ethernet interface function of the Institute of Electrical and Electronics Engineers (IEEE) 802.3, and the wireless processing unit transmits 2Mbps at a 2.4GHz frequency band of 802.11. Providing.

In the conventional wireless LAN system, as shown in FIG. 1A, a wireless LAN terminal 11, which is an information terminal used by a wireless LAN user, a router 12 and a hub 13 for internet access, and an internet connection It is located between the authentication server 14 that provides the service, the wireless LAN terminal 11 and the hub 13, and transmits the Internet access request of the wireless LAN terminal 11 to the authentication server 14. 11) has a network configuration including an access point 15 for relaying wireless LAN communication.

Here, the access point 15 is a wireless LAN access device that supports interworking of an existing wired LAN area and a wireless LAN service area, and includes one or more Ethernet MACs (Media Access Control) and a wireless LAN MAC. According to the definition of the WLAN MAC of the access point 15 is to go through the process of authentication (Authentication) and Association (Association) to manage its own wireless LAN service area.

That is, the above-described conventional access point 15 corresponds to Internet access information, that is, IP, gateway, and DSN (Domain Name Server) information that is already set in the WLAN terminal 11 when the Internet access request of the WLAN terminal 11 is performed. After receiving from the WLAN terminal 11 to request the authentication authentication to the authentication server 14 performs a wireless LAN relay function so that the Internet connection is made.

In the case of the conventional WLAN having the above configuration, an error due to a version (Version) problem according to the person who has not been upgraded and the recipient occurs, so it is necessary to upgrade the software of the WLAN.

Accordingly, in the conventional software upgrade system of a WLAN terminal, when a software upgrade situation occurs due to a problem of a WLAN terminal or a function improvement, existing general users may upgrade the software of the WLAN terminal as illustrated in FIG. 1B. How to take the terminal to the service center and get the latest software upgrade by connecting to a wired line such as a serial input / output port or USB, or as shown in Figure 1c to access the AP directly to a specific server (1) to upgrade the latest software This was used.

However, in the conventional software upgrade system of the wireless LAN terminal, the reliability of data transmission in the wireless LAN is lower than that of the conventional wired LAN. There is a restriction on how to upgrade the software automatically. In addition, when the power is turned off while the software is being downloaded, or the software is broken out of the wireless LAN reception range, it is difficult to recover. At this time, NAT (Network Address Translation) is to translate the IP address in the internal network using a different IP address than that known to the external network. Typically, a company uses its internal network address as one or more public IP addresses. It then converts public IP addresses on incoming packages back to private IP addresses. Thus, each outgoing or incoming request must go through an address translation process, which helps to ensure security issues, limiting or authenticating the request, and providing an opportunity to match previous requests. NAT also preserves the number of public IP addresses required by the company and allows the company to use only one public IP address for communication with external networks.

In addition, the software upgrade system of the conventional wireless LAN terminal, the server must know the information about the terminal attached to the wireless LAN terminal, but most of the wireless terminals connected to the AP is assigned a private IP through NAT, Because of the problem of receiving information through the server, it was impossible to upgrade the software of the WLAN terminal through the Internet, and the WLAN terminal user should go directly to a service center equipped with a specific server and perform the software upgrade of the WLAN terminal. Not only had to be uncomfortable, but there was a problem incurred accompanying costs.

Accordingly, the present invention is to solve the above-mentioned conventional problems, an object of the present invention is to automatically upgrade the software of the wireless LAN terminal using a private IP over the NAT software of the terminal connected to the AP The purpose is to provide an upgrade system and method.

According to one aspect of the software automatic upgrade system of the terminal connected to the present invention AP to achieve the above object, the upgrade server for storing the latest software of the terminal connected to the AP; And

It is connected to the upgrade server and at least one terminal, and after downloading the latest software of the terminal from the upgrade server, and compared with the software version of the connected terminal, if it is more recent, the latest software is transmitted to the terminal automatically. It includes the AP to upgrade.

The AP may include: a download determination unit determining whether the upgrade server has the latest software of the WLAN terminal; If the upgrade server has the latest software, the download processing unit for connecting to download and store the latest software of the wireless LAN terminal, while downloading the latest software to the wireless LAN terminal; And a WLAN terminal identification unit for determining whether to download by checking a software version of the WLAN terminal.

And, the terminal checks its own software version and version for transmitting to the AP; A download processor for downloading and storing the latest software from the AP; An upgrade flag for determining a download progress state of the latest software; And a flag processor configured to determine whether the download is normal by determining the status of the upgrade flag and to set the upgrade flag.

According to an aspect of the software automatic upgrade method of the terminal connected to the present invention AP to achieve the above object, the AP and the access point in a network system including an AP (Access Point) connected to at least one terminal In the latest software upgrade method of the terminal,

A first step of the AP downloading the latest software of the terminal through the upgrade server and storing the latest software in the storage unit;

And a second step of the AP upgrading the software by transmitting the latest software stored in the storage unit to the plurality of terminals, respectively.

According to another aspect of a method for automatically upgrading software of a terminal connected to an AP of the present invention for achieving the above object, the AP is connected to an AP in a network system including an upgrade server and an access point (AP) connected to at least one terminal. In the latest software upgrade method of the terminal,

Step 100, the terminal transmitting software version information to the AP;

Step 200 in which the terminal receives a software change message from the AP;

Step 300, the terminal comparing the software version stored in its storage unit with the software version stored in the storage unit of the AP;

In step 200, if the software version stored in the storage unit of the AP is up-to-date, the terminal transmits an approval response message to the AP and receives the latest software from the AP and stores it in the storage unit; And

If the terminal transmits the upgrade completion message to the AP and receives a response message, the terminal stores version information and then completes the upgrade.

Hereinafter, a software automatic upgrade system and method of a terminal connected to an AP according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a functional block diagram of a software automatic upgrade system of a terminal connected to an AP according to an embodiment of the present invention. The automatic software upgrade system of a terminal connected to an AP according to an embodiment of the present invention includes an upgrade server ( 100), the AP 200, and the plurality of WLAN terminals 300.

The upgrade server 100 stores the latest software of the WLAN terminal. In addition, it stores the software package (Package) and version information of the WLAN terminal to be downloaded to the actual terminal and system file information including the configuration information of the WLAN terminal. In this case, the system file information includes various environment variables to be used for mass provisioning in addition to the software version information of the WLAN terminal.

Here, the administrator only needs to modify the system information file by adding a file to the upgrade server 100 without any additional system or action.

The AP 200 performs a proactive operation as a main having software and various information of the WLAN terminal, and serves as a warehouse of a software package in the upgrade server 100. FIG. 3. As shown in the figure, it is composed of a download determiner 210, a WLAN terminal checker 220, and a download processor 230.

The download determining unit 210 determines whether the upgrade server 100 has the latest software of the WLAN terminal.

In addition, the WLAN terminal checker 220 checks the software version of the WLAN terminal to determine whether to download.

When the download processor 230 confirms that the upgrade server 100 has the latest software through the download determination unit 210, the download processor 230 accesses the upgrade server 100 to download the latest software of the WLAN terminal. On the other hand, if the software of the wireless LAN terminal is older than the software downloaded from the upgrade server from the wireless LAN terminal identification unit 220, the latest software downloaded from the upgrade server is downloaded. It serves to download to the terminal 300.

In addition, after downloading the latest software of the WLAN terminal from the upgrade server 100 via the Internet and storing it in the flash memory, the software version of the WLAN terminal and the software stored in its own flash memory Compare the versions and if the version of the software stored in the flash memory is the latest version to transmit the software package of the latest WLAN terminal to the WLAN terminal 300 to automatically upgrade. In addition, the AP 200 is wirelessly connected to the WLAN terminal 300 which is an information terminal used by a WLAN user, a router and a hub for accessing the Internet, an authentication server for providing Internet access service, and a WLAN terminal. Located between the 300 and the hub transmits the Internet access request of the wireless LAN terminal 300 to the authentication server also plays a general role of relaying the wireless LAN communication of the corresponding wireless terminal.

In addition, the WLAN terminal 300 is an information terminal used by a WLAN user and is wirelessly connected to the AP 200 to perform respective functions. As shown in FIG. 4, a version checking unit 310 and a download processing unit are shown. And an upgrade flag 330 and a flag processor 340.

The version checker 310 checks its software version and transmits it to the AP.

In addition, the download processor 320 plays a role of downloading and storing the latest software from the AP.

The upgrade flag 330 serves to determine the download progress state of the latest software.

In addition, the flag processor 340 determines whether the download is normal by determining the state of the upgrade flag 330, and sets the upgrade flag 330.

At this time, the WLAN terminal 300 transmits its software version information to the AP 200, and receives the software change message having the latest software version information from the AP 200, and stores it in its flash memory. Compare the software version with the software version stored in the flash memory of the AP (200) and if the software version stored in the flash memory of the AP (200) is the latest and sends an approval response message to the AP (200) and then the latest software Download the software and store it in the flash memory to perform a software upgrade.

Next, a method for automatically upgrading software of a terminal connected to an AP having the above configuration will be described with reference to FIG. 5.

First, the AP 200 downloads the latest software of the WLAN terminal through the upgrade server 100 and stores the latest software in the flash memory (S1).

Hereinafter, a detailed operation process of the above-described first step S1 will be described in more detail with reference to FIG. 6.

First, the AP 200 receives version information of software from the WLAN terminal 300 and stores it in the flash memory (S11).

Subsequently, the AP 200 receives a "system file having the latest software version information of the wireless LAN terminal" from the upgrade server 100 and compares it with the software version information of the existing wireless LAN terminal stored in the flash memory ( S12).

At this time, if it is the same as the software version of the WLAN terminal stored in the flash memory in the twelfth step (S12), the process proceeds to the eleventh step (S11) again, while the software of the WLAN terminal stored in the upgrade server (100). If the version is the latest, the AP 200 downloads the software of the WLAN terminal from the upgrade server 100 and stores the software in the flash memory (S13).

At this time, the AP 200 compares whether the latest software version information stored in the flash memory is more recent than the software version information of each WLAN terminal, and then proceeds to the first step again.

The AP 200 upgrades the software by transmitting the latest software stored in the flash memory to the plurality of WLAN terminals 300, respectively (S2).

Hereinafter, a detailed operation process of the above-described second step S2 will be described in more detail with reference to FIG. 7.

First, the AP 200 transmits a software_change_message to the plurality of WLAN terminals 300, respectively (S21).

Thereafter, the AP 200 determines whether each response message is input from the plurality of WLAN terminals 300 (S22).

If the approval response message is input from the WLAN terminal 300 in the twenty-second step S22, the AP 200 downloads the latest software to the WLAN terminal 300 (S23).

Subsequently, when the AP 200 receives an upgrade completion message from the WLAN terminal 300, the AP 200 stores registration information including software version information of the WLAN terminal and then transmits a confirmation signal to the WLAN terminal 300. To complete the upgrade (S24).

If, in the twenty-second step (S22) receives an upgrade completion message from the WLAN terminal 300, the AP 200 maintains the registration information of the WLAN terminal 300 and then transmits a confirmation signal to the wireless The upgrade is completed by transmitting to the LAN terminal 300 (S25).

Next, a method for automatically upgrading software of a terminal connected to an AP having the above configuration will be described with reference to FIG. 8.

First, the WLAN terminal 300 transmits the software version information to the AP 200 (S100).

Thereafter, the WLAN terminal 300 receives a software change message from the AP 200 (S200).

Then, the WLAN terminal 300 compares the software version stored in its flash memory with the software version stored in the flash memory of the AP 200 (S300).

At this time, if the software version stored in the flash memory of the AP 200 is the latest in step 300 (S300), the WLAN terminal 300 transmits an acknowledgment response message to the AP 200 and then the AP ( 200, the latest software is received and stored in the flash memory (S400). At this time, the WLAN terminal 300 sets the upgrade flag to "100" when downloading the latest software from the AP 200 (S700). Thereafter, when the latest software of the WLAN terminal is stored in the flash memory of the WLAN terminal 300 from the AP 200, the WLAN terminal 300 releases the upgrade flag to "1" (S800). ).

Subsequently, when the WLAN terminal 300 receives the response message after transmitting the upgrade completion message to the AP 200, the WLAN terminal 300 stores the version information and completes the upgrade (S500).

On the other hand, in the 300 step (S300), if the software version stored in the flash memory of the AP 200 is the same, the wireless LAN terminal 300 transmits the upgrade complete message to the AP 200 to the current software Maintain (S600).

On the other hand, the WLAN terminal 300 further includes requesting the AP 200 to download the latest software when it is released by checking the upgrade flag at the first operation (S900).

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and changes are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended claims.

According to the software automatic upgrade system and method of the terminal connected to the AP according to the present invention as described above, the AP receives the package (Package) from the upgrade server and stores it and transmits it to the internal network directly to the wireless LAN terminal and the upgrade server Compared to the connection method, it is possible to increase the reliability of the software package by storing it in the AP which is always connected to power, and to use the NAT by using the resources of the local network to upgrade the software of the WLAN terminal connected to the AP. There is an excellent effect that can solve the problem of the transmission / reception of the message.

Claims (24)

An upgrade server for storing the latest software of the terminal connected to the access point (AP); And It is connected to the upgrade server and at least one terminal, and after downloading the latest software of the terminal from the upgrade server, and compared with the software version of the connected terminal, if it is more recent, the latest software is transmitted to the terminal automatically. Software automatic upgrade system of the terminal connected to the AP including the AP to upgrade. The method of claim 1, The AP may include: a download determination unit determining whether the upgrade server has the latest software of the terminal; If the upgrade server has the latest software, the download processing unit for connecting to download and store the latest software of the terminal, while downloading the latest software to the terminal; And The automatic software upgrade system of the terminal connected to the AP including a terminal confirmation unit for determining whether to download by checking the software version of the terminal. The method of claim 1, The AP, the automatic software upgrade system of the terminal connected to the AP including the storage unit for storing the latest software of the downloaded terminal. The method of claim 1, The AP is an automatic software upgrade system of the terminal connected to the AP is connected to at least one terminal via a network address translation (NAT). The method of claim 1, The AP and the terminal, the software automatic upgrade system of the terminal connected to the AP wirelessly connected. The method of claim 1, The AP and the upgrade server, the software automatic upgrade system of the terminal connected to the AP connected through the Internet. The method of claim 1, The terminal, the automatic software upgrade system of the terminal connected to the AP for automatically upgrading by downloading the latest software from the AP. The method of claim 1, The terminal, A version check unit which checks its software version and transmits it to the AP; A download processor for downloading and storing the latest software from the AP; An upgrade flag for determining a download progress state of the latest software; And The automatic flag upgrade system of the terminal connected to the AP including a flag processing unit for determining the status of the upgrade flag and whether or not the normal download, and setting the upgrade flag. The method of claim 1, The terminal is a software automatic upgrade system of the terminal connected to the AP for storing the latest software to download to the storage unit. The method of claim 1, When the terminal downloads the latest software from the AP, the software automatic upgrade system of the terminal connected to the AP to set / release the upgrade flag. The method of claim 1, The terminal, the automatic software upgrade system of the terminal connected to the AP requesting the download of the latest software to the AP when the upgrade flag is released during the first operation. The method of claim 1, The software downloaded from the upgrade server is a software automatic upgrade system of a terminal connected to an AP which is package data including at least one software setting value and upgrade data. In the latest software upgrade method of the terminal connected to the AP in a network system including an upgrade server and an access point (AP) connected to at least one terminal, A first step of the AP downloading the latest software of the terminal through the upgrade server and storing the latest software in the storage unit; And a second step of the AP transmitting the latest software stored in the storage unit to the plurality of terminals, respectively, to upgrade the software. The method of claim 13, If the latest software version information stored by the AP in the storage unit is not the latest information than the software version information of each terminal further comprising the step of proceeding to the first step again the software automatic upgrade of the terminal connected to the AP Way. The method of claim 13, The first step is, An eleventh step of the AP receiving and storing version information of the software from the terminal; A twelfth step in which the AP receives a system file from the upgrade server; A thirteenth step wherein the AP compares the software version information of the terminal stored in the storage unit with the latest software version stored in the upgrade server; If the software version of the terminal stored in the storage unit is the same as in the thirteenth step, the process proceeds to the eleventh step again. If the software version of the terminal stored in the upgrade server is the latest, the AP downloads the software of the terminal from the upgrade server. The software upgrade method of the terminal connected to the AP consisting of a thirteenth step of loading and storing in the storage unit. The method of claim 13, The second step, A twenty-first step of transmitting, by the AP, a software_change_message to the plurality of terminals; A twenty-second step of the AP determining whether each response message is input from the plurality of terminals; A twenty-third step in which the AP downloads the latest software when receiving the approval response message from the terminal in the twenty-second step; And When the AP receives the upgrade completion message from the terminal, the terminal connected to the AP includes a twenty-fourth step of storing the registration information including the software version information of the terminal and transmitting a confirmation signal to the terminal to complete the upgrade. How to automatically upgrade your software. The method of claim 16, In step 22, if the upgrade complete message is received from the terminal, the AP maintains the registration information of the terminal, and then transmits a confirmation signal to the terminal to complete the upgrade. How to automatically upgrade your software. The method of claim 13, The AP is a software automatic upgrade method of a terminal connected to the AP for upgrading the plurality of terminals by using a provisioning (Provisioning) method. The method of claim 13, The software downloaded by the AP from the upgrade server is a software automatic upgrade method of a terminal connected to the AP which is package data including at least one software setting value and upgrade data. In the latest software upgrade method of the terminal connected to the AP in a network system including an upgrade server and an access point (AP) connected to at least one terminal, Step 100, the terminal transmitting software version information to the AP; Step 200 in which the terminal receives a software change message from the AP; Step 300, the terminal comparing the software version stored in its storage unit with the software version stored in the storage unit of the AP; In step 200, if the software version stored in the storage unit of the AP is up-to-date, the terminal transmits an approval response message to the AP and receives the latest software from the AP and stores it in the storage unit; And If the terminal sends an upgrade completion message to the AP and receives a response message, the software automatically upgrade method of the terminal connected to the AP comprising the step of storing the version information and completing the upgrade. The method of claim 20, In step 300, if the software versions stored in the storage unit of the AP are the same, the terminal automatically transmits an upgrade completion message to the AP to maintain the current software. How to upgrade. The method of claim 20, The method includes setting an upgrade flag when downloading the latest software from the AP; And releasing the upgrade flag after downloading all the latest software from the AP. The method of claim 20, The method may further include the step of requesting the AP to download the latest software when the upgrade flag is released by checking the upgrade flag during the first operation. The method of claim 20, The software downloaded from the upgrade server is a software automatic upgrade method of a terminal connected to an AP which is package data including at least one software setting value and upgrade data.

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