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KR-20260067247-A - SYSTEM FOR DATA TRANSMISSION AND CONTROL FOR CONNECTING ATON AND HETEROGENEOUS DEVICES AND METHOD FOR DATA TRANSMISSION

KR20260067247AKR 20260067247 AKR20260067247 AKR 20260067247AKR-20260067247-A

Abstract

The present invention relates to a data transmission and control system for interoperability between navigational aids and heterogeneous multiple terminals. The data transmission and control system for interlinking a navigational aid and heterogeneous multiple terminals according to the present invention includes a navigational aid main board comprising a navigational aid integrated management system and an auxiliary management system connected to the navigational aid main board and operated according to the purpose of the equipment.

Inventors

  • 성주형
  • 권기원
  • 조성윤
  • 전원기
  • 조인표

Assignees

  • 한국전자기술연구원

Dates

Publication Date
20260512
Application Date
20241105

Claims (18)

  1. A navigational aid main board including a navigational aid integrated management system; and An auxiliary management system connected to the main board of the aforementioned navigational aid and operated according to the purpose of the equipment A data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals, including...
  2. In paragraph 1, The above navigational aid main board opens a broker service for monitoring and controlling the equipment mounted on the navigational aid. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.
  3. In paragraph 1, The above navigational aid main board executes the above broker service and activates the client of the above integrated management system. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.
  4. In paragraph 1, The above integrated management system includes a client connected to an external broker and supports external control and monitoring functions. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.
  5. In paragraph 1, The above auxiliary management system activates the client to perform message publishing and subscription. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.
  6. In paragraph 1, The above mainboard and auxiliary management system communicate via the MQTT protocol. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.
  7. In paragraph 6, The above navigational aid main board sets topics for performing monitoring and control of the above auxiliary management system, which is classified by function, via the above MQTT protocol. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.
  8. In Paragraph 7, The above navigational aid main board establishes the structure of the above topic, including the name of the above auxiliary management system and the name of the monitoring and control target function. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.
  9. In paragraph 1, The above integrated management system issues a command to the above auxiliary management system upon switching to emergency mode due to a system problem, so that in the case of systems lower than a preset priority, the communication cycle with the client is adjusted or disabled. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.
  10. In Paragraph 9, The above integrated management system transmits commands regarding the communication cycle with the above auxiliary management system, whether to maintain communication, and the communication cycle and whether to maintain communication with equipment connected to the above auxiliary management system. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.
  11. In Paragraph 9, The above integrated management system notifies external control and monitoring terminals that it is operating abnormally and transmits a message containing a unique ID of the cause of the problem. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.
  12. In paragraph 1, The above auxiliary management system includes a sensor management system that manages weather sensors and water temperature sensors. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.
  13. In paragraph 1, The above auxiliary management system includes a communication management system that manages AIS and LTE. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.
  14. In paragraph 1, The above auxiliary management system includes a lighthouse management system that manages a lighthouse and a lighthouse synchronization GPS. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.
  15. Navigational aids; A terminal that performs monitoring and control of the above navigational aid; and An intermediary system connecting the above navigational aid and the above terminal A data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals, including...
  16. In paragraph 15, The above brokerage system opens a client at the above navigational aid and connects it to a broker of the above brokerage system. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.
  17. In paragraph 15, The above terminal selects the navigational aid through the above-mentioned intermediary system and performs monitoring and control using a topic including the unique ID of the navigational aid. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.
  18. In Paragraph 17, When a client connected to the broker of the above-mentioned mediation system subscribes to the above-mentioned topic, the above-mentioned navigational aid transmits acquired information by publishing a predefined monitoring topic, or retrieves information from an internal database and transmits it to the terminal. Data transmission and control system for interoperability between navigational aids and heterogeneous multi-terminals.

Description

Data Transmission and Control System for Interconnecting Navigational Aids and Heterogeneous Multi-Terminals {SYSTEM FOR DATA TRANSMISSION AND CONTROL FOR CONNECTING ATON AND HETEROGENEOUS DEVICES AND METHOD FOR DATA TRANSMISSION} The present invention relates to a data transmission and control system for interoperability between navigational aids and heterogeneous multiple terminals. Navigational aids are maritime safety facilities designed to support the safe navigation of vessels. They operate in a marine environment by integrating multi-purpose equipment such as various marine sensors, lighthouses, battery systems, and communication systems. According to conventional technology, these multi-purpose devices are not distinguished by hardware or software but are connected to a single navigational aid main board. Consequently, managing the equipment connected to the main board is difficult, and maintenance is also challenging in the event of problems. In addition, navigational aids according to conventional technology periodically transmit status information via the Automatic Identification System (AIS) in accordance with the ITU-R M.1371-5 standard. They also transmit data such as maritime safety status and weather conditions using sensor information to support monitoring functions at target terminals and control functions for checking operational status. Navigational aid status information is transmitted once every three minutes using AIS-21 messages, while Application Specific Messages (ASM), such as AIS-6 and AIS-8, are used to perform the remaining sensor information monitoring and control. AIS-6 messages are designated communication methods that communicate with specific terminals and are primarily used for control, while AIS-8 messages are broadcast communication methods that communicate without distinguishing between terminals and are used for monitoring sensor information. The method of performing data communication using AIS according to conventional technology has the following problems. AIS utilizes the Time Division Multiple Access (TDMA) technique to allocate time resources for multiple access, and time resources for communication are allocated according to Self-Organized TDMA (SOTDMA) and Carrier Sensing TDMA (CSTDMA) methods, depending on data priority and the type of AIS equipment used. Generally, AIS-ASM, which performs monitoring and control of sensor information from navigational aids, has a lower priority compared to the AIS used for transmitting position information from vessels; consequently, there is a problem in that it is difficult to allocate time resources for communication due to surrounding complexity. In particular, in environments with high communication volume, it becomes even more difficult to allocate time resources even with the same priority, which can lead to irregular communication cycles and the occurrence of missing data. Since there are no internationally common standards defined for the data transmitted by AIS-ASM, in most cases, they are defined and used independently by each country or sea area. Consequently, once AIS-ASM is defined, there are limitations on scalability for future modifications if a demand for monitoring or controlling new navigation aid data arises. In addition, due to the low data transmission rate of 9.6kbps, there are limitations in performing data communication even when the types of monitoring and control targets increase. To address the aforementioned problems, there have been attempts to monitor and control navigational aids using commercial communication networks such as LTE, which offer relatively free data communication; however, the following issues still remain. Since there are various types of equipment installed on navigational aids and each piece of equipment operates in an independent manner, monitoring and control must be performed according to specialized operating protocols (period, data format, etc.) for each piece of equipment, and there is a problem of computational load when multiple operating protocols are operated simultaneously through multithreading. Since the terminals performing monitoring and control of navigational aids are not specific to the operating environment, support for general-purpose heterogeneous terminals is required. In other words, seamless processing must be ensured even in situations where multiple terminals, rather than a single one, communicate with navigational aids. The required data may change depending on the purpose of data communication, and support should be provided to enable selective communication tailored to the purpose in order to reduce the computational load on navigation aids. To meet the aforementioned requirements, it is necessary to develop a system capable of enabling each terminal to perform monitoring and control of navigational aids at a desired time through a protocol that allows for future expansion. FIG. 1 illustrates an example in which a main system and an auxiliary mana