KR101860091B1 - Unidirectional data transmission device - Google Patents

Unidirectional data transmission device Download PDF

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Publication number
KR101860091B1
KR101860091B1 KR1020160030552A KR20160030552A KR101860091B1 KR 101860091 B1 KR101860091 B1 KR 101860091B1 KR 1020160030552 A KR1020160030552 A KR 1020160030552A KR 20160030552 A KR20160030552 A KR 20160030552A KR 101860091 B1 KR101860091 B1 KR 101860091B1
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KR
South Korea
Prior art keywords
data
smart sensor
protocol
data transmission
communication line
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KR1020160030552A
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Korean (ko)
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KR20170106865A (en
Inventor
유해근
김효영
이성욱
Original Assignee
한전케이디엔 주식회사
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Priority to KR1020160030552A priority Critical patent/KR101860091B1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/22—Arrangements for preventing the taking of data from a data transmission channel without authorisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H04L67/16—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/08—Protocols for interworking; Protocol conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Computing Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Small-Scale Networks (AREA)

Abstract

A one-way data transmission apparatus of the present invention includes: a smart sensor for storing sensed data and transmitting the data upon request; And one directional connection for receiving the collected data and transmitting the data to the outside using a unidirectional data transmission method using only a transmission line in a communication line and protocol conversion after being electrically connected through a communication line connection unit provided at a terminal of the smart sensor And a data transfer module.

Description

[0001] UNIDIRECTIONAL DATA TRANSMISSION DEVICE [0002]

The present invention relates to a one-way data transmission apparatus, and more particularly, to a one-way data transmission apparatus that is electrically connected through a communication line connection unit installed at a terminal of a smart sensor operating on the Internet of Things (IOT) Directional data transmission through the transmission line and only the transmission line after receiving the data, thereby preventing intruders from infiltrating into the smart sensor and allowing unauthorized leakage of the collected data to the outside, so as to secure security and data reliability, unidirectional data Transmitting apparatus.

In recent years, with the rapid spread of personal computers and the general use of the Internet, a variety of electronic businesses such as electronic commerce, electronic money, and electronic mail have been developed as basic means of living. Accordingly, illegal invasion of hackers, The inadequacy of informatization such as infringement is becoming a social problem.

To solve these problems, a virtual private network (VPN), a firewall, an intrusion detection system (IDS) and the like have been extensively studied as a network security technology.

A well-known firewall is a technology for protecting the internal network from the outside, and is a general term for a policy for protecting internal information assets from external illegal intrusion and for blocking the inflow of harmful information from the outside, and supporting hardware and software .

Therefore, the firewall generally exists at the boundary between the Internet and the internal network, and controls the flow of information. The firewall blocks the flow of the network traffic and delays the speed of the traffic.

Intrusion Detection System (IDS) is a technology that detects an intrusion by monitoring the use of a network or a system in real time by using an intrusion pattern database and an expert system.

Therefore, if a firewall and an intrusion detection system are used, damage can be minimized even if the intrusion prevention fails, and the hacking can be appropriately responded even in the absence of a network administrator.

Recently, technologies for collecting and transmitting various data through a smart sensor based on the Internet of Things (IoT) have been attracting attention.

However, the IoT-based smart sensor, whose main purpose is data collection and transmission according to the prior art, is mainly composed of implementation of core functions due to device performance and device size, come.

Therefore, according to the prior art, intruders infiltrating smart sensors through a TCP (Transmission Control Protocol) -based network applied to two-way communication without legitimate rights cause unauthorized leakage of the collected data to the outside, Can not be secured.

Korean Patent Publication No. 10-2011-0114379

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a smart sensor which is electrically connected through a communication line connection unit installed at the end of a smart sensor operating on the Internet of Things (IOT) Way data transmission through only the transmission line, thereby providing an unidirectional data transmission device for enhancing security and ensuring reliability of data by preventing an intruder from infiltrating the smart sensor and preventing unauthorized leakage of collected data to the outside have.

According to an aspect of the present invention, there is provided a one-way data transmission apparatus including a smart sensor for storing sensed data and transmitting the data upon request; And one directional connection for receiving the collected data and transmitting the data to the outside using a unidirectional data transmission method using only a transmission line in a communication line and protocol conversion after being electrically connected through a communication line connection unit provided at a terminal of the smart sensor And a data transfer module.

The present invention has the technical effect of enhancing the security and securing the reliability of the data by preventing the intruder from intruding into the smart sensor and preventing the collected data from being leaked to the outside.

1 schematically illustrates the relationship between the one-way data transmission module and the surrounding smart sensor and data collection device according to the present invention.
FIG. 2 illustrates a detailed configuration of a one-way data transmission module according to the present invention.

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

1 schematically illustrates the relationship between the one-way data transmission module and the surrounding smart sensor and data collection device according to the present invention.

1, the one-way data transmission module 100 according to the present invention is electrically connected to a smart sensor 10 via a communication line connection unit installed at the end of the surrounding smart sensor 10 and receives data collected by the smart sensor 10 And the unidirectional data transmission only through the transmission line, so that the data collected in one direction is transmitted to the external data collection device 20, which will be described later in detail with reference to FIG.

In this case, the communication line connection unit electrically connects the smart sensor 10 and the one-way data transmission module 100. For example, an RJ45 connector, a UTP cable, or the like may be used, but the present invention is not limited thereto.

Here, the smart sensor 10 refers to various sensors that operate on the basis of Internet of Things (IoT), and the data sensed through various sensors (such as meter reading data, environmental data, etc.) A secure transmission is requested to the external data collection device 20 without allowing the intrusion.

The data collecting apparatus 20 collects various data through a TCP (Transmission Control Protocol) based communication network.

Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) will be briefly described below.

The TCP layer can be divided into two types: TCP (Transmission Control Protocol) and UDP (User Datagram Protocol). UDP is used for applications that use TCP for reliable applications and applications that transmit simple data at high speed .

In TCP, after confirming that the connection between the sender and the receiver is established, the data is transmitted. For example, if the data is transmitted correctly, the receiver receives a response indicating that the receiver has received the response. If the response is not received, the receiver retransmits the data.

On the other hand, UDP sends data unilaterally without receiving the connection between the transmitting side and the receiving side, and receives no response from the receiving side even if data is transmitted.

FIG. 2 illustrates a detailed configuration of a one-way data transmission module according to the present invention.

Referring to FIG. 2, the one-way data transmission module 100 according to the present invention includes a primary protocol switching module 110, a unidirectional data transmission module 120, and a secondary protocol switching module 130.

The primary protocol switching module 110 receives data based on TCP (Transmission Control Protocol) from a TCP (Transmission Control Protocol) -based smart sensor 10 and transmits data through a communication network that is physically unreachable (User Datagram Protocol) based protocol to transmit the data.

The unidirectional data transmission module 120 physically disconnects the reception line of the communication line so that the smart sensor 10 implements data reception. The unidirectional data transmission module 120 is based on UDP (User Datagram Protocol) And transmits the data.

The second protocol switching module 130 transmits a UDP (User Datagram Protocol) -based protocol to a TCP (Transmission Control Protocol) to transmit data transmitted through the unidirectional data transmission module 120 to a general TCP (Transmission Control Protocol) Based protocol and transmits the data to the external data collection device 20. [

Accordingly, the present invention restricts access to the network through a method of physically disconnecting the reception line of the communication line through the unidirectional data transmission module 120 so that connection from the intruder without the proper authority to the smart sensor 10 is not possible, It has an advantage that an intruder outside can penetrate the smart sensor 10 and prevent the collected data from being leaked to the outside.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention.

10: Smart sensors
20: Data collecting device
100: One-way data transmission module
110: Primary protocol switching module
120: unidirectional data transmission module
130: Secondary protocol switching module

Claims (5)

A smart sensor for storing sensed data and transmitting the data upon request; And
A smart sensor connected to the smart sensor via a communication line connection unit, receives the collected data, and transmits the data to the outside through a unidirectional data transmission method using only a transmission line in a communication line, Module,
The one-way data transmission module comprises:
A primary protocol switching module for receiving the data from the smart sensor based on a TCP (Transmission Control Protocol) and then switching to a UDP (User Datagram Protocol) based protocol and transmitting the data;
A unidirectional data transmission module that physically disconnects a reception line of a communication line and transmits the data based on UDP (User Datagram Protocol) using only a transmission line; And
And a second protocol switching module for converting data received on a UDP (User Datagram Protocol) based on the unidirectional data transmission module to a TCP (Transmission Control Protocol) based protocol and transmitting the converted data to the outside,
The one-way data transmission module comprises:
The smart sensor is electrically connected to the smart sensor through a communication line connection unit provided at a terminal of the smart sensor,
The communication line connection unit,
An RJ45 connector or a UTP cable is used. delete The method according to claim 1,
Further comprising a data collection device for collecting data transmitted from the one-way data transmission module through a TCP (Transmission Control Protocol) based communication network. delete delete
KR1020160030552A 2016-03-14 2016-03-14 Unidirectional data transmission device KR101860091B1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140062721A1 (en) * 2001-09-13 2014-03-06 Sensus Usa Inc Modular wireless fixed network for wide-area metering data collection and meter module apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140062721A1 (en) * 2001-09-13 2014-03-06 Sensus Usa Inc Modular wireless fixed network for wide-area metering data collection and meter module apparatus

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