• Journal of the Korea Society of Computer and Information
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• v.28 no.12
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• pp.137-145
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• 2023

In this paper, we propose system access control software that improves the survivability of the naval combat system while maintaining security and stability. The software was improved by improving the operating environment configuration and user authentication process of the system access control software that constitutes the naval combat system, defining the operating environment classification of the naval combat system, and applying a software parallel execution process considering the load rate. Through this, the waiting time required to configure the environment is shortened, providing rapid operation to the operator, and improving the fact that the naval combat system cannot be operated unless the environment configuration is completed even in emergency situations. In order to test the performance, a test environment was created by simulating the existing naval combat system, and the execution time for each operation category was measured and compared. Compared to the existing naval combat system, the execution time of the basic combat system was reduced by about 69.3%, the execution time of the combat system was reduced by about 54.9%, and the execution time of the integrated combat system was confirmed to be reduced by about 8.4%.

• Proceedings of the Korean Society of Computer Information Conference
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• 2017.07a
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• pp.19-20
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• 2017

전투체계 SW 설계 시 실시간성은 중요하게 고려되어야 할 요소이다. 예로 전투체계 SW 중 하나인 장치관리 모듈은 전투체계를 구성하는 연동단 및 정보처리장치의 운용 상태를 감시하고 상태정보 메시지를 체계관리 모듈에 일정한 주기로 보고하기 위해 실시간성이 요구되어진다. 하지만 장치관리 모듈을 비롯한 전투체계 SW의 운용환경은 실시간성 제공이 어려운 윈도우 운영체제를 사용하고 있다. 또한 전투체계 SW는 재사용성이 높아 멀티 프로세서 환경을 고려하지 않은 설계와 개발 중 추가된 여러기능의 혼재로 실시간성 만족에 어려움이 있다. 이 문제를 해결하기 위해 본 논문에서는 전투체계 SW에 실시간성의 확보를 위한 방안에 대해 연구하였다. 그 방법으로 ms단위의 이벤트 발생이 가능한 실시간 타이머와 CPU 할당을 이용한 쓰레드 스케줄링 방안을 제안하였으며 장치관리 모듈에 적용하였다. 그리고 실험을 통해 성능을 입증하였다. 본 논문에서 제안한 방안은 별도의 상용 솔루션이나 커널 수정이 불가능한 경우 응용 SW 수정으로 실시간성을 높일 수 있다는 장점을 가진다.

• Journal of the Korea Society of Computer and Information
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• v.27 no.12
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• pp.209-217
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• 2022

Naval CMS(Combat Management System) is linked to various sensors and weapon equipment and use DDS(Data Distribution Service) for efficient data communication between ICU(Interface Control Unit) Node and IPN(Information Processing Node). In order to use DDS, software in the system communicates in an PUB/SUB(Publication/Subscribe) based on DDS topic. If the DDS messages structure in this PUB/SUB method does not match, problems such as incorrect command processing and wrong information delivery occur in sending and receiving application software. To improve this, this paper proposes a DDS message structure integrity verification method. To improve this, this paper proposes a DDS message structure integrity verification method using a hash tree. To verify the applicability of the proposed method to Naval CMS, the message integrity verification rate of the proposed method was measured, and the integrity verification method was applied to CMS and the initialization time of the existing combat management system was compared and the hash tree generation time of the message structures was measured to understand the effect on the operation and development process of CMS. Through this test, It was confirmed that the message structure verification method for system stability proposed in this paper can be applied to the Naval CMS.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06b
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• pp.69-71
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• 2012

전투체계는 일반적으로 대규모 시스템으로 다양한 부체계들로 구성되며, 각각은 서로 다른 업체에서 독립적으로 개발되어 서로 다른 컴퓨팅 플랫폼에서 동작한다. 이러한 다양한 플랫폼에서 동작하는 부체계들을 관리하는 것이 쉽지 않다. 그래서 현재 전투체계를 통합 관리하기 위한 방안으로 정보모델을 이용하는 방안이 제시되고 있다. 일반적으로 정보모델은 플랫폼에 독립적인 형태로 구성하기 위해 XML을 이용한다. 그러나 전투체계와 같이 복잡한 시스템에 대한 정보모델을 사용자가 직접 관리하기란 쉽지 않다. 이는 관리 대상 체계들의 정보뿐만 아니라 하위 시스템 및 애플리케이션들 간의 관계를 모델링하는 것이 필요하기 때문이다. 이 논문에서는 객체지향 개념을 바탕으로 전투체계를 관리하기 위한 정보모델을 제시하고, 정보모델을 효과적으로 구축하기 위해 블록 기반으로 시스템들의 정보와 시스템들 간의 배치 관계 등을 표현할 수 있는 정보모델 모델러를 제안한다.

• Defense and Technology
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• no.8 s.246
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• pp.66-77
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• 1999

지상전의 핵심 무기체계인 전차에서도 무인 정찰기나 인공 위성에 의한 정확한 정보획득으로 효율적인 지휘통제가 이루어지도록 $C^4I$체계, 전자감시체계 및 정밀타격체계 등을 하나의 통합체계로 구성하여 전투효율의 극대화와 다차원 동시 통합전투라는 미래 전장 운영개념인 전투관리 시스템(BMS:Battle Management System)이 연구 개발되고 있다

• KIISE Transactions on Computing Practices
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• v.23 no.12
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• pp.670-676
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• 2017

Naval combat systems use real-time processing and compositing of collected information to provide the optimal combat capabilities that maximize survival and ensure mission effectiveness. The software for a combat system has dozens to thousands of components depending on the size of the system, and the communication between the components is achieved via DDS. Although the message interface of the combat system is managed through MDMS, an increase in the system size can result in problems such as the deterioration of the development efficiency. In this paper, we implement XMDMS to operate a distributed processing environment and then solve the problem of the reduction in the development efficiency caused by a load at the server. The experimental results shows that XMDMS improves the processing delay and network performance compared to MDMS.

• Journal of the Korea Society of Computer and Information
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• v.25 no.2
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• pp.133-140
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• 2020

The IISS(Integrated Interface Storage System) software uses communication methods such as DSS(Data Sharing Service), UDP to perform the function of sending all messages from the Combat Management System to the analytical computer. Because IISS software handles all message used in the Combat Management System, the source code is large and has a highly dependent feature on message changes. Modification of software is a task that requires a lot of labor, such as series of software reliability test. so research has been conducted to reduce software development costs, including minimizing software modifications. In this paper, We study the method of messages receiving and architectural structure improvement to minimize reliance on message changes in the Combat Management System and improve the modifiability. Reduced message dependency by changing the way DSS and UDP protocols are communicated to Packet Sniffing. In addition, Factory Method Pattern were applied to improve the software design. Test comparing existing software and development elements have confirmed that the software has improved its modifiability and reuse.

• Proceedings of the Korea Information Processing Society Conference
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• 2009.11a
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• pp.219-220
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• 2009

과학 기술의 발전과 함께 함정에 탑재되는 무기와 각종 장비들은 컴퓨터 시스템에 의해 통제, 조작되는 형태로 변하고 있다. 다수의 장비들에 대한 모니터링 정보를 비롯한 다수의 메시지와 이를 조작하는 다양한 프로세스들을 관리해야 할 필요성이 증가하고 있다. 대규모의 실시간 메시지와 분산 환경의 감시의 일관성을 위해 해외에서는 기술표준화 작업이 진행되고 있으며, 이는 DDS(Data Distribution Service)를 기반으로 구성되고 있다. 본 논문에서는 컴퓨터 시스템에 대한 통제를 위해 OMG의 DDS(Data Distribution Service) 통신 미들웨어와 공개 프로젝트인 Fuse를 이용하여 분산 환경의 모니터링 및 파일 복제 서비스를 제공하는 전투 체계 관리 소프트웨어인 CSIMS를 설계, 구현한다.

• Journal of the Korea Society of Computer and Information
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• v.25 no.11
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• pp.147-155
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• 2020

System support software is one of the software that makes up ship combat management system and has the characteristics of being mounted in the combat management systems of all ships but with little functional change. However, despite these characteristics, software modifications due to equipment, etc. are inevitable in the application of new ships. Modification of software causes software reliability testing which is a key factor in increasing development costs. In this paper, the structure of the existing system support software was analyzed to identify and supplement the code change factors, and the system support standardization architecture was designed. The feature model elicited common and variable elements of system support software, and applied white-box reuse to improve software design. In addition, the results of comparing existing system support software with the new architecture in terms of development elements and time to perform reliability test were presented to verify the effectiveness of the new one.

• Convergence Security Journal
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• v.20 no.2
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• pp.123-135
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• 2020

Since AlphaGo's Match in 2016, there has been a growing calls for artificial intelligence applications in various industries, and research related to it has been actively conducted. The same is true in the military field, and since there has been no weapon system with artificial intelligence so far, effort to implement it are posing a challenge. Meanwhile, AlphaGo Zero, which beat AlphaGo, showed that artificial intelligence's self-training data-based approach can lead to better results than the knowledge-based approach by humans. Taking this point into consideration, this paper proposes to apply Reinforcement Learning, which is the basis of AlphaGo Zero, to the Shipboard Combat System or Combat Management System. This is how an artificial intelligence application to the Shipboard Combat System or Combat Management System that allows the optimal tactical assist with a constant win rate to be recommended to the user, that is, the commanding officer and operation personnel. To this end, the definition of the combat performance of the system, the design plan for the Shipboard Combat System, the mapping with the real system, and the training system are presented to smoothly apply the current operations.