KR20100136625A - A secure standalone wlan embedded system for controlling an external module supporting only wired serial communication interface - Google Patents

A secure standalone wlan embedded system for controlling an external module supporting only wired serial communication interface Download PDF

Info

Publication number
KR20100136625A
KR20100136625A KR1020090054795A KR20090054795A KR20100136625A KR 20100136625 A KR20100136625 A KR 20100136625A KR 1020090054795 A KR1020090054795 A KR 1020090054795A KR 20090054795 A KR20090054795 A KR 20090054795A KR 20100136625 A KR20100136625 A KR 20100136625A
Authority
KR
South Korea
Prior art keywords
serial
module
wlan
wireless lan
serial communication
Prior art date
Application number
KR1020090054795A
Other languages
Korean (ko)
Other versions
KR101032292B1 (en
Inventor
강대근
김경진
김남엽
성민호
장욱성
장재용
장진기
전진훈
주경환
채영수
최지훈
현종배
홍성화
Original Assignee
(주)씨맥스와이어리스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)씨맥스와이어리스 filed Critical (주)씨맥스와이어리스
Priority to KR20090054795A priority Critical patent/KR101032292B1/en
Publication of KR20100136625A publication Critical patent/KR20100136625A/en
Application granted granted Critical
Publication of KR101032292B1 publication Critical patent/KR101032292B1/en

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00Digital computers in general; Data processing equipment in general
    • G06F15/16Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
    • G06F15/163Interprocessor communication
    • G06F15/17Interprocessor communication using an input/output type connection, e.g. channel, I/O port
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices

Abstract

PURPOSE: A wireless LAN embedded system including an application and a secure function for controlling an external module using cable serial communication are provided to use a wireless LAN module of a device as a serial interface, thereby performing wireless communication between devices. CONSTITUTION: A WLAN(Wireless Local Area Network) module of a stand alone type includes an MCU(Micro Controller Unit). The WLAN module performs object connection embedding of a web server, telnet, an FTP(File Transfer Protocol), and a security function without redesigning an applied target system. Serial communication between existing devices is performed through the WLAN module without a serial interface PC(Personal Computer).

Description

A secure standalone WLAN embedded system for controlling an external module supporting only wired serial communication interface}

The present invention relates to a wireless LAN embedded system including an application and a safety function for controlling an external module using wired serial communication, and more specifically, a stand-alone type having a microprocessor (MCU). This is a WLAN module of Web Server, Telnet, File Transfer Protocol, and Security. It is composed of independent modules. Redesign / Redesign of the target system. Without redesign, network function, web server (HTTP, HTTPS), telnet (TELNET), file transfer protocol (FTP) and security (Embedding) function can be embedded, and serial communication between existing devices is possible. Wireless LAN module including a wireless LAN module that can perform serial and wireless LAN communication with a wireless LAN module without a serial interface PC, and applications and safety functions for controlling the module. It relates to a bonded system.

In general, the serial communication between the conventional equipment uses a serial cable and a PC having a serial interface for data communication as shown in FIG.

This has a problem in that an expensive PC must be placed per device for serial communication, and there is a disadvantage that the device communicates in serial and has a lot of influence on distance limitation and transmission speed.

Therefore, such a method has a problem in that an additional expense is required for maintenance while increasing the burden on the user in terms of cost.

Specifically, an automated machine such as a machine tool uses an electric motor as a main power source, and in the case of the automated machine, a stepping motor is mainly used as a power for position control and angle control according to high speed and precision.

On the other hand, in order to operate the motor or to automatically process the workpiece, the data must be input to the PC connected to the automated machine.

And companies that process conventional workpieces operate from a few to as many as tens of pieces of equipment.

 Here, each communication port may be formed through a respective cable connected to a plurality of external peripheral devices.

Here, the peripheral device may include a desktop computer or a serial printer connected to a serial connector, a monitor connected to an existing VGA connector, and the like.

The cable is composed of a serial cable for connecting to a desktop computer or a serial connector and a VGA cable for connecting a monitor to the connector.

When the external peripheral is supported by using a separate communication interface device according to the prior art, an HPC or portable system may use the same number of serial and VGA connectors as the number of external peripherals to exchange data with a plurality of external peripherals. There is a problem that is required.

In addition, the cable arranged to the outside as described above should be a separate cable arrangement for processing the cable while making the surrounding environment more congested, but the fact that there is a limit to clean the cable in reality.

The present invention has been made to solve the above problems, and relates to a wireless LAN embedded system including an application and a safety function for controlling an external module using wired serial communication, and more particularly, a microprocessor (MCU) Built-in stand-alone WLAN module (WLAN Module), which is composed of independent modules such as Web Server, Telnet, File Transfer Protocol, and Security. Embedding of network functions, web servers (HTTP, HTTPS), Telnet, TELNET, file transfer protocol (FTP) and security functions without redesign / redesign of the target system Also, to control the wireless LAN module and the module that can perform serial, wireless LAN communication between the existing equipment and serial communication between the wireless LAN module without a serial interface PC The purpose is to provide a WLAN embedded system including application and safety functions.

In order to achieve the above object, a wireless LAN module according to the present invention is a wireless chip that enables wireless communication between terminals, a microprocessor that enables serial communication by scheduling data received therefrom, and a software application configured in module units. And security functions,

A serial client having a function of receiving data from a serial communication device through a serial cable and sending data to a module of a serial server connected to an AP using an WLAN module;

A serial server receiving the multi data of the serial client from a wireless LAN of a module using an AP and sending data to a serial communication device;

It includes application and security functions to control a module configured to enable multi-serial communication between different models connected to the AP wirelessly using a wireless LAN module without using a PC and a serial cable according to the existing serial communication. It relates to a WLAN embedded system.

According to the present invention, the data communication between the existing equipment, each of the equipment to provide a serial interface PC for each device by using a serial cable to escape the method using a wireless LAN module as a serial interface to the equipment can wirelessly communicate between devices. There is a characteristic.

In addition, it is not necessary to use an expensive PC for serial communication, and it is possible to communicate with a wireless LAN module without connecting a wired serial cable, thereby providing user convenience.

In addition, the wireless LAN module of the present invention is a web server, telnet, file transfer protocol, security functions that can be remotely measured and managed control can be modularized easily loaded on other systems can greatly reduce the user's cost risk It works.

In addition, it is possible to meet the consumer's desire to buy due to the differentiation of the existing embedded can significantly increase the sales of the product.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part includes a certain component, this means that it may further include other components rather than controlling other components unless otherwise stated.

1 is a reference diagram schematically showing a conventional serial communication method, FIG. 2 is a reference diagram showing a comparison between an embedded system and a wireless LAN module, and FIG. 3 schematically shows a wireless communication method between wireless LAN modules of the present invention. 4 is a flowchart schematically illustrating functions of an application of a WLAN module of the present invention.

First, the present invention is a stand-alone wireless LAN module (WLAN Module) with a built-in microprocessor (MCU) as shown in Figure 2 and Figure 4. Web Server (TELNET) , File Transfer Protocol (FTP), Security (Security) are composed of independent module type, network function and web server (HTTP, HTTPS), Telnet (TELNET), without redesign / redesign of applied system. File transfer protocol (FTP) and security (Embedding) functions can be embedded (Embedding), and serial communication between devices can be performed between serial and WLAN using CMAX WLAN module without serial interface PC. Configuration.

Here, the WLAN module 100 of the present invention is a WLAN chip that enables wireless communication between terminals, a microprocessor that enables serial communication by scheduling data received therefrom, a software application configured in units of modules, and security ( Security) is a configuration that includes the function.

Then, a serial client having a function of receiving data from a serial communication device 101 via a serial cable and sending data to a module of a serial server connected to an AP (Access Pointer) using a wireless LAN of the module is configured.

Here, it is preferable to configure a serial server that receives the multi-data of the serial client from the wireless LAN of the module using the AP to send data to the serial communication device.

Here, it is a configuration capable of multi-serial communication between different models connected to the AP wirelessly using a wireless LAN module without using a PC and a serial cable according to the existing serial communication.

In other words, the WLAN module 100 according to the present invention has a WLAN chip that enables wireless communication between terminals, a microprocessor that enables serial communication by scheduling data received therefrom, and a software function configured in units of modules.

Meanwhile, wireless data communication by connecting the serial communication device 101 and the wireless LAN module 100 will be described with reference to FIG. 3 as follows.

The serial client connects the serial communication device 101 and the wireless LAN module 100 to the wireless LAN module 100 using a serial cable, and uses only a serial cable without using additional equipment (computer) for other communication. Connected.

The wireless LAN module 100 of the present invention receives the data from the serial communication device 101 by the serial cable to the wireless LAN module 100 of the serial server connected to the AP (Access Pointer) using the wireless wireless LAN module 3 is a configuration for sending data as shown in FIG. 3.

And, the serial server portion is connected to the serial communication equipment 101 and the wireless LAN module 100, like a serial client using a serial cable, the multi-data of the serial client in the wireless of the wireless LAN module using the AP Receive and send data to serial communication equipment.

Here, the wireless operation of the wireless LAN module 100 receives wireless data according to the wireless LAN standard (supporting 802.11b / g) from the RF unit as shown in FIG. 4 and processes hardware security to be connected between the MAC processing units. It is a configuration to send data to RISC CPU using SPI.

Here, the RISC CPU is configured to receive serial data using the SPI at the wireless LAN chip, and transmit the serial data using UART communication by scheduling the corresponding OS.

Here, the serial data is transmitted to the serial device connected to the WLAN module 100 to be processed.

Next, the application and security (Security) function of the wireless LAN module 100 was implemented and applied as shown in Table 1 in the form of a module.

Through the application (HTTPS, HTTP, TELNET, FTP) functions, the module's control and status can be monitored and verified. Various security can be applied to provide strong WLAN security.

Table 1

                Characteristics                  Explanation Security WPA-PSK / WPA2-PSK / EAP (LEAP, PEAP, TLS, TTLS Web Server HTTP / HTTPS for control and status check of CMAX WLAN module TELNET TELNET for checking control and status of CMAX WLAN module FTP FTP for checking the control and status of the CMAX WLAN module

That is, the present invention is a configuration that can implement multi-serial communication between different models connected to the AP wirelessly using the wireless LAN module of the present invention without using a PC and a serial cable according to the existing serial communication.

As described above, the present invention provides a wireless LAN module as a serial interface to a device to wirelessly communicate between devices by overcoming a method of using a serial cable with a PC providing a serial interface for each device. Can be.

In addition, it is not necessary to use an expensive PC for serial communication, and it is possible to communicate with a wireless LAN module without connecting a wired serial cable, thereby providing user convenience.

In addition, the wireless LAN module of the present invention is a web server, telnet, file transfer protocol, a safety function that can be remotely measured and managed control is modularized can be easily loaded on other systems can greatly reduce the user's cost risk .

In addition, it is possible to meet the consumer's desire to buy due to the differentiation of the existing embedded can significantly increase the sales of the product.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be.

It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

1 is a reference diagram schematically showing a conventional serial communication method.

2 is a reference diagram illustrating a comparison between an embedded system and a wireless LAN module.

3 is a flow chart schematically showing a method of wireless communication between WLAN modules of the present invention.

Figure 4 is a flow chart schematically showing the function of the application of the WLAN module of the present invention.

Explanation of symbols on the main parts of the drawings

100. Wireless LAN module 101. Serial communication equipment

Claims (6)

  1.  A stand-alone WLAN module including a microprocessor (MCU) is formed, and the WLAN module includes a web server, a telnet, and a file transfer protocol. (FTP), security features are added,
    The WLAN module provides network connection, web server (HTTP, HTTPS), telnet, TELNET, file transfer protocol (FTP), and security (Security) function without the redesign / redesign of the target system. Embedding)
    Serial communication between the existing equipment, including the serial interface PC and the wireless LAN module, the application and safety functions for controlling the external module using a wired serial communication, characterized in that configured to perform the communication between the wireless LAN. WLAN embedded system.
  2. The method of claim 1,
    The WLAN module includes a WLAN chip that enables wireless communication between terminals, a microprocessor that enables serial communication by scheduling data received therefrom, a software application configured in units of modules, and a security function.
    A serial client having a function of receiving data from a serial communication device through a serial cable and transmitting data to a module of a serial server connected to an AP using an WLAN module;
    A serial server receiving the multi data of the serial client from a wireless LAN of a module using an AP and sending data to a serial communication device;
    External module using wired serial communication, characterized in that it is configured to perform multi-serial communication between different models connected to the AP wirelessly using a wireless LAN module without using a serial cable and a PC according to the existing serial communication. WLAN embedded system with application and safety features to control the system.
  3. 3. The method of claim 2,
    The serial server part connects a serial communication device and a wireless LAN module with a serial cable like a serial client, and receives multi data of the serial client from the wireless LAN module using an AP to receive data from the serial communication device. Wireless LAN embedded system including application and safety functions for controlling external modules using wired serial communication characterized by sending configuration.
  4. The method of claim 1,
    Wireless operation of the wireless LAN module receives wireless data according to the wireless LAN standard (802.11b / g support) from the RF unit to process hardware security and to the RISC CPU using SPI connected between the MAC processing units. Wireless LAN embedded system including an application and a safety function for controlling an external module using wired serial communication, characterized in that sending data.
  5. The method of claim 4, wherein
    The RISC CPU receives the data through the SPI at the WLAN chip stage and schedules the corresponding OS to send serial data using UART communication, and the serial data can be transmitted to the serial device connected to the WLAN module. Wireless LAN embedded system including an application and a safety function for controlling an external module using a wired serial communication.
  6. The method of claim 1,
    Application and security of the WLAN module implements the function in a module form, and then applies security (Security) while monitoring and checking the control and status of the module through the application (HTTPS, HTTP, TELNET, FTP) function. WLAN embedded system including application and safety functions for controlling external modules using wired serial communication, characterized by being configured to maintain WLAN security.
KR20090054795A 2009-06-19 2009-06-19 A secure standalone WLAN embedded system for controlling an external module supporting only wired serial communication interface KR101032292B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20090054795A KR101032292B1 (en) 2009-06-19 2009-06-19 A secure standalone WLAN embedded system for controlling an external module supporting only wired serial communication interface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20090054795A KR101032292B1 (en) 2009-06-19 2009-06-19 A secure standalone WLAN embedded system for controlling an external module supporting only wired serial communication interface

Publications (2)

Publication Number Publication Date
KR20100136625A true KR20100136625A (en) 2010-12-29
KR101032292B1 KR101032292B1 (en) 2011-05-06

Family

ID=43510572

Family Applications (1)

Application Number Title Priority Date Filing Date
KR20090054795A KR101032292B1 (en) 2009-06-19 2009-06-19 A secure standalone WLAN embedded system for controlling an external module supporting only wired serial communication interface

Country Status (1)

Country Link
KR (1) KR101032292B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104348861A (en) * 2013-07-31 2015-02-11 腾讯科技(深圳)有限公司 A method, user equipment and system for data transmission

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100577538B1 (en) * 2004-04-28 2006-05-10 (주)크리웨이브 Controller by using wireless module and the practical method thereof
KR20090000017U (en) * 2007-06-15 2009-01-07 정태식 Wireless data transmitting apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104348861A (en) * 2013-07-31 2015-02-11 腾讯科技(深圳)有限公司 A method, user equipment and system for data transmission

Also Published As

Publication number Publication date
KR101032292B1 (en) 2011-05-06

Similar Documents

Publication Publication Date Title
CN103081409B (en) Network system and network management method
US9210581B2 (en) Maintenance of wireless field devices
US7043310B2 (en) Device and process for operation of automation components
JP4137862B2 (en) Measuring device and robot control device
EP1868323A1 (en) Connection parameter setting system, method thereof, access point, server, radio terminal, and parameter setting device
DE10211939A1 (en) Coupling device for coupling devices to a bus system
KR20150114765A (en) Image forming apparatus supporting function of NFC(near field communication) and method for setting NFC operation mode thereof
CN105229561A (en) There is the power distribution unit of wireless communication ability and the technology for communicating with
EP3155697B1 (en) Reversible connector for accessory devices
WO2009017521A3 (en) Combined wired and wireless communications with field devices in a process control environment
EP2296066A3 (en) Gateway having an input/output scanner
US9124999B2 (en) Method and apparatus for wireless communications in a process control or monitoring environment
KR20060059621A (en) Apparatus for testing air conditioner
CN102099757B (en) There is the improvement field device interface of network protection mechanism
CN104053148B (en) Configure safety wireless network
CN103347306B (en) The method, system and device that a kind of multiple terminal is associated
CN103388873A (en) Fault handling method and device of air conditioning system
US20040095910A1 (en) PLC based wireless communications
KR20150014317A (en) Image forming apparatus and mobile device for performing wireless configuration using near field communication
EP3073381B1 (en) Virtual intelligent platform management interface (ipmi) satellite controller and method
CN104144470B (en) A kind of Bluetooth connecting method and client
US20140219292A1 (en) Converter/multiplexer for serial bus
US8626916B2 (en) Handheld field maintenance tool with process communication tunnel
EP2985925B1 (en) Wireless charging platform using beamforming for wireless sensor network
US20150078753A1 (en) Remote control system and method

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee