KR101040562B1 - Dts emulator for testing dlp in link-11 and method thereof - Google Patents

Abstract

PURPOSE: A DTS emulating device and a method thereof are provided to manage a data transmitting sequence between DLPs and Pus though an expensive DTS is not used in TDL or link -11. CONSTITUTION: The first - the third PU(Participating Unit) (210,220,230) respectively include a DLP(Data Link Processor) and DTS(Data Terminal Set) emulator(241-243). The DLP(212,221,231) are connected to TDS(Tactical Data System) (211,222,232) and change transceiving data into TDL(Tactical Data Link) format. The DTS emulator proceeds UDP (User Diagram Protocol) communication with the DLP. The first DTS emulator successively transmits a token to the second and the third DTS emulator, and it enables the second and the third DTS emulator to successively transmit data to the first DTS emulator.

Description

Data terminal set (DTS) emulating device and method thereof {DTS Emulator for testing DLP in Link-11 and method about}

The present invention relates to a tactical data link of a tactical command control system, and more particularly to an emulating apparatus and method for use in the tactical data link.

The future war is changing from a platform-based battlefield by unit weapon system to a network-driven operational environment in which all weapon systems share and co-operate with the information required by relevant units and personnel through technical connectivity and interoperability.

In a network-based operating environment, sensors and command control systems share situational awareness through the network and perform precise strikes, thereby maximizing warfare capability.At this time, tactical data link (TDL) is used as a communication means for command control between weapon systems. Tactical Data Links are used, and real-time tactical data links are required to perform a series of operations against enemy threats.

The tactical command control system integrates the data collected from the radar network as a sensor and takes necessary tactical actions. It consists of radar, fire control system and interworking system, data link processor (DLP), central processing computer to process input data, and exhibition console to display processed results and take appropriate tactical action. The system also includes wired and wireless voice communication equipment for voice communication.

The tactical command control system receives raw raw data from sensor systems such as radar and electronic support measures (ESM), and targets processed by missile fire control equipment (eg AN / TSQ-73). Directs data and weapons control orders and exchanges target information with similar tactical data systems such as adjacent air defense automation systems, AWACS (Airborne Warning and Control System) and Naval Tactical Data System (NTDS). .

Standardized tactical data links include TADIL-A (Link-11), TADIL-B (TActical Digital Information Link-B), JTIDS (Joint Tactical Information Distribution System), and ATDL (Army Tactical Data Link).

Among these, Link-11 is a US Navy ship version of NATO's tactical data information link "A" (TADIL-A), which is a high-speed, computer-to-computer between ships, aircraft, and ground units. Enable the exchange of digital tactical information.

1 is a block diagram of a conventional Link-11 network.

The Link-11 network is one of the Tactical Data Links (TDLs) that carry information to command and control operations. Link-11 is the US Navy of NATO's Tactical Data Information Link "A" (TADIL-A). Developed by the US military as a naval version. The Link-11 network enables the exchange of high-speed, computer-to-computer digital tactical information between ships, aircraft, and ground units. Link-11 is capable of two-way transmission between naval ships, ships, ships and land units using HF and UHF communication equipment.

Referring to FIG. 1, the conventional Link-11 network 100 may simultaneously transmit a voice and a tactical message through RF communication between a plurality of subscriber units (PUs) 110 and 120. Each of the subscriber units (PUs) 110 and 120 is a tactical data system (TDS) 111, 121 for inputting a display for outputting context information and a command of an operator, and a tactical data input and output from the tactical data system 111, 121. Data Link Processors (DLPs) 112 and 122 which convert data into a Link-11 format and have a high speed data processing function, and the data processed by the data link processors 112 and 122 are converted into a wireless communication device (HF / UHF). Data terminal sets (DTS) 113 and 123 for modulating or demodulating data transmitted or received through the CDMA, performing digital / analog conversion and error detection, and antennas 114 and 124 for transmitting the data to the air. ). In the Link-11 network, subscriber units (PUs) 110 and 120 can communicate using UHF or HF radio signals. In case of using HF, communication is possible to long distance. UHF, on the other hand, enables communication within the line of sight. In the Naval Tactical Data System (NTDS), the subscriber units (PUs) 110 and 120 may be installed in ships performing missions or may be installed in aircraft, field units, command centers, or the like to share information in real time or near real time.

The subscriber units (PUs) 110 and 120 are installed in ships, aircraft, field units, command centers, and the like, and are tested for normal operation. In particular, in the test of the Link-11 network, the test is conducted with a major interest in the vast data processing performance of the Data Link Processors (DLPs) 112 and 122.

In particular, the data terminal sets (DTS) 113 and 123 are core devices of the Link-11 system, and perform control functions required for modulation, demodulation, and operation of the Link-11.

For example, the first data terminal set (DTS) 113 receives 24-bit data from the first tactical data system (TDS) 111, and detects and corrects errors in the received 24-bit data. 6 bits of data are added. The 30-bit data as described above is phase shift modulated with 15 audio tones. Thus 15 data tones and Doppler connection tones can be combined into a composite audio signal, which is transmitted at UHF or HF radio frequency. The second data terminal set (DTS) 123 then receives the composite audio signal and separates it into 15 data tones and a Doppler connection tone. The separated 15 data tones are again demodulated to 30 data bits, six hamming bits are checked for error detection, and 24 data bits are sent to the second tactical data system (TDS) 121.

However, in the related art, there is a problem in that a network is always configured as shown in FIG. 1 and a data terminal set (DTS) 113, 123 is installed, even for a simple test of the data link processor (DLP) 112, 122. In addition, in the Naval Tactical Data System (NTDS), an NTDS card is required for communication between the data link processors (DLPs) 112 and 122 and the data terminal sets (DTS) 113 and 123. Among the subscriber units (PUs) 110 and 120 in the Link-11 network, especially the data terminal sets (DTS) 113 and 123 are very expensive and are not currently produced in Korea and are purchased from foreign companies. This results in a greater effort entering the Link-11 network environment than the effort involved in testing the data link processor (DLP) 112,122. In addition, since the data terminal sets (DTS) 113 and 123 are expensive, their available quantity is limited, and in the event of a failure of the data terminal sets (DTS) 113 and 123, it is difficult to test the data link processor (DLP) 112 and 122. There is a problem.

SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to provide data link processors and subscriber units (DTS) without using an expensive data terminal set (DTS) in tactical data link, link-11. An apparatus and method for managing data transmission order between PUs are also provided.

Another object of the present invention is to provide an apparatus and method for improving a development environment of a link-11 network and to easily determine whether or not data link processors operate normally.

A data terminal set (DTS) emulation apparatus according to the present invention for achieving the above object is connected to a first tactical data system to change the data transmitted and received to the first tactical data system to a predetermined tactical data link format A first subscriber unit having a first data link processor and a first DTS emulator for performing UDP communication with the first data link processor; A second data link processor connected to a second tactical data system to change data transmitted and received to the second tactical data system to the predetermined tactical data link format, and a second to perform UDP communication with the second data link processor. A second subscriber unit having a DTS emulator; And a third data link processor connected to a third tactical data system to change data transmitted and received to the third tactical data system to the predetermined tactical data link format, and performing UDP communication with the third data link processor. A third subscriber unit having a 3 DTS emulator; wherein the first subscriber unit is designated as a network control station (NCS), the second and third subscriber units are designated as network picket stations (NPS), and The first DTS emulator sequentially sends tokens to the second DTS emulator and the third DTS emulator, thereby allowing the second DTS emulator and the third DTS emulator to sequentially transmit data to the first DTS emulator.

The first DTS emulator includes: a data transmitter which receives data from the first data link processor in a transmission mode and transmits the data to an external network; A token receiver configured to change the transmission mode to a reception mode when a token is received; A data receiving unit which sequentially receives data from the second subscriber unit and the third subscriber unit in the reception mode; And a timer determining whether the data is transmitted by the data transmitter for a predetermined time.

In addition, the predetermined tactical data link is preferably Link-11.

In addition, the data terminal set (DTS) emulation method according to the present invention for achieving the above object, it is connected to a first tactical data system to change the data transmitted and received to the first tactical data system to a predetermined tactical data link format At a first subscriber unit having a first data link processor and a first DTS emulator that performs UDP communication with the first data link processor, the first DTS emulator is to transmit to the first data link processor (DLP). Requesting the presence of data; When the first DTS emulator receives data to be transmitted from the first data link processor (DLP), transmitting the received data to a second subscriber unit connected to the Ethernet through UDP communication; The first DTS emulator transferring a token to the second subscriber unit when there is no data to transmit for a predetermined time; And a second data link processor connected to a second tactical data system to convert data transmitted and received to and from the second tactical data system into the predetermined tactical data link format; And a second DTS emulator for performing UDP communication, wherein when the second DTS emulator receives the token, the second DTS emulator transmits the data received from the second data link processor to the first subscriber unit. It characterized in that it comprises a step.

The method may further include delivering the token to a third subscriber unit in a predetermined order, wherein the third subscriber unit is connected to a third tactical data system to transmit and receive to the third tactical data system. A third data link processor for converting the data into the predetermined tactical data link format, and a third DTS emulator for performing UDP communication with the third data link processor, wherein the third DTS emulator receives the token. The method may further include transmitting, by the third DTS emulator, data received from the third data link processor to the first subscriber unit.

In addition, according to the present invention for achieving the above object, a data terminal set (DTS) emulator connected to a Link-11 network, in a transmission mode, receives data from one data link processor included in the first subscriber unit. A data transmitter for receiving and transmitting to at least one of the second subscriber unit and the third subscriber unit; A token receiver configured to change the transmission mode to a reception mode when a token is received; A data receiving unit which sequentially receives data from a second subscriber unit and a third subscriber unit in the reception mode; And a timer for determining whether data is transmitted for a predetermined time by the data transmitter, wherein the first data link processor changes data transmitted / received to a first tactical data system into a format of the link-11 network. It is done.

According to the present invention, by configuring a Link-11 network using a DTS emulator, it is possible to transmit and receive data between data link processors without using a data terminal set (DTS) and an NTDS card, and also to subscriber units (PUs). The order of data transmission can be managed. In addition, since the application programming interface (API) between the data link processor (DLP) and the DTS emulator is implemented in the same manner as the API used in the conventional NTDS device driver, the change of the data link processor (DLP) is not necessary. Furthermore, according to the DTS emulator of the present invention, it is possible to perform communication by configuring a Link-11 network without an expensive data terminal set (DTS), and thus, the development environment of the Link-11 network can be more easily configured. In addition, there is an advantage to prevent the network development delay that occurred when the conventional data terminal set (DTS) failed. In addition, according to the present invention, by applying UDP communication between the data link processor (DLP) and the data link processor (DLP), and by applying UDP communication between the DTS emulators, the interface configuration and the test environment configuration are simple, and various test functions are provided. There is an advantage that it is easy to add and change.

1 is a block diagram of a conventional Link-11 network.
2 is a block diagram of a Link-11 network using a data terminal set (DTS) emulating apparatus according to the present invention.
3 is a detailed block diagram of a DTS emulator according to the present invention;
4 is a diagram illustrating an operation process of a DTS emulator according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description and the annexed drawings, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

2 is a block diagram of a Link-11 network using a data terminal set (DTS) emulating apparatus according to the present invention.

Link-11 network 200 according to the present invention includes a plurality of subscriber units (PU-1, PU-2, PU-n) (210, 220, 230) and the plurality of subscriber units (PU-1, PU-). 2, the emulating device 240 to connect the PU-n (210, 220, 230).

Referring to FIG. 2, each of the subscriber units PU-1, PU-2, and PU-n 210, 220, and 230 may include a tactical data system (TDS) 211, 221, 231, and a data link processor (DLP). ) 212, 222, 232 and DTS emulators 241, 242, 243.

Tactical Data System (TDS) 211, 221, 231 includes a computer for processing data input from the data link processor (DLP) 212, 222, 232, and a display console that displays the processed results and takes appropriate tactical actions. .

Information is transmitted between the data link processor (DLP) 212, 222, 232 and the tactical data system (TDS) 211, 221, 231 in real time or near real time through a data bus. The tactical data system (TDS) 211, 221, 231 may receive tactical situation data from sensors and navigation systems installed in a vessel or the like, or tactical data command by an operator's input, and may also display tactical data regarding tactical situation information.

The data link processor (DLP) 212, 222 performs track management, engagement management, link message processing, message forwarding and relay functions between heterogeneous links, and input and output from the tactical data system 211, 221, 231. Convert the data to Link-11 format. Here, the tactical data may be classified into track information and tactical reference information. Target information may include information about the target position (longitude, latitude, altitude, etc.), target speed and target direction. The tactical reference information may include information about the weapon specifications, the unit location, and the like. Since the target information of the tactical information is information that changes every moment, real time processing is required. On the other hand, the tactical reference information does not require real-time processing relative to the target information.

DTS emulating device 240 includes a plurality of DTS emulators 241, 242, 243, each of which is assigned a corresponding data link processor (DLP) 212, 222, 232. For example, a first DTS emulator 241 is connected to a first data link processor (DLP) 212, a second DTS emulator 242 is connected to a second data link processor (DLP) 222, An n th DTS emulator (not shown) is coupled to the n th data link processor (DLP) 232.

The DTS emulators 241, 242 and 243 are connected to each other via Ethernet and perform UDP (User Datagram Portocol) communication. In addition, information is transmitted between the DTS emulators 241, 242, 243 and the data link processor (DLP) 212, 222, 232 using UDP.

The DTS emulators 241, 242 and 243 are provided with tactical data through the data link processors (DLPs) 212, 222 and 232, and transmit and receive data through UDP communication through digital / analog conversion, protocol management, and error detection.

The DTS emulating apparatus 240 may replace the data terminal set (DTS) 113 and 123 illustrated in FIG. 1 when the data link processor (DLP) 212, 222, and 232 configured in the Link-11 network is tested. That is, by using the DTS emulating apparatus 240 according to the present invention, without using expensive data terminal set (DTS) (113,123), the data link processor (DLP) through UDP communication through the DTS emulator (241,242,243) ) 212, 222, 232 can be installed and tested.

3 is a detailed block diagram of a DTS emulator according to the present invention.

3 illustrates a detailed structure of the first DTS emulator 241 among the DTS emulators 241, 242, 243 according to the present invention. However, the other DTS emulators, that is, the second DTS emulator 242 and the n-th DTS emulator 243, all have the same structure as the first DTS emulator 241. The DTS emulators 241, 242, 243 perform broadcasting through UDP communication, and transmit data by a token ring method. It also uses an Ethernet interface and can be configured to exchange data using APIs such as conventional NTDS interfaces. In the following description, a detailed structure of the first DTS emulator 241 will be described.

Referring to FIG. 3, the DTS emulator 241 includes a Send Data Task 301, a Recv Data Task 302, a Recv Token Task 303, and a Timer. (304).

The DTS emulator 241 has an NCS mode and a picket mode for a Link-11 network management function, and also has a sending mode and a receiving mode internally for transmitting and receiving data. By distinguishing the transmission mode from the reception mode in the DTS emulator 241 as described above, it is reflected in the DTS emulator 241 that the conventional data terminal sets (DTS) 113 and 123 cannot simultaneously transmit and receive data. Can be.

The data transmitter 301 receives data from the first data link processor (DLP) 212 in a sending mode and transmits data to an external network, that is, another subscriber unit (PU-2, PU) connected to Ethernet through UDP communication. -n) 220,230 to transmit the received data.

At this time, if there is no data transmitted from the data transmitter 301 for a predetermined time in the transmission mode, the timer 304 switches the mode to the receiving mode (Receiving mode) and returns a token. Here, the subscriber unit (PU) connected to the first DTS emulator 241, that is, the first subscriber unit (PU-1) 210 is a network control station (NCS: Net Control Station), the other subscriber unit (PU-). 2, PU-n) (220, 230) passes the token.

When the first subscriber unit (PU-1) 210 is a network control station (NCS), the first subscriber unit (PU-1) 210 controls the entire Link-11 network, and the other subscriber unit (PU-2, PU-n) 220,230 becomes a net picket station (NPS). When the network control station (NCS) calls the network picket stations (NPS) in turn using a token, the called network picket station (NPS) transmits its own data according to a predetermined message format.

The data receiving unit 302 receives data from an external network, that is, other subscriber units (PU-2, PU-n) 220 and 230 connected to Ethernet through UDP communication, and transmits the received data to the first data link processor. DLP) 212.

The token receiver 303 transmits and receives the token to change the mode of the first subscriber unit (PU-1) 210. For example, when the first subscriber unit (PU-1) 210 receives the token, the token receiver 303 changes the first subscriber unit (PU-1) 210 to the transmission mode. On the contrary, when the first subscriber unit (PU-1) 210 transmits the token to the other subscriber units (PU-2, PU-n) 220 and 230, the token receiver 303 may use the first subscriber unit (PU-). 1) 210 is changed from the transmission mode to the reception mode.

UDP communication is performed between the first DTS emulator 241 and the first data link processor (DLP) 212, and data communication is performed using a message queue. Data communication is performed between the first DTS emulator 241 and another subscriber unit (PU-2, PU-n) 220, 230 connected to an external network, that is, Ethernet through UDP socket communication. The application program interface (API) for communicating with the first data link processor (DLP) 212 uses the same interface as that used by the NTDS device driver of the conventional data terminal set (DTS) 113 and 123, The first data link processor (DLP) 212 does not require an application 212-1 and other changes to communicate with the first DTS emulator 241.

4 is a diagram illustrating an operation mode of the DTS emulator according to the present invention.

In FIG. 4, the first subscriber unit (PU-1) 210 is designated as a network control station (NCS) to control the entire Link-11 network, and the other subscriber units (PU-2, PU-n) 220,230. ) Will be described based on the case designated as the network picket station (NPS).

Referring to FIG. 4, first, when an operation mode of a first DTS emulator 241 is designated as a network control station (NCS) (S401), the first DTS emulator 241 performs a transmission mode operation. It performs (S402).

Specifically, in the transmission mode of step S402, the first DTS emulator 241 requests the first data link processor (DLP) 212 whether there is data to transmit. When the first DTS emulator 241 receives the data to be transmitted from the first data link processor (DLP) 212, another subscriber unit (PU-2, PU-n) connected to the Ethernet via the UDP communication with the received data. (220, 230).

If there is no data transmitted from the data transmitter 301 for a predetermined time, the token is transferred to other subscriber units PU-2 and PU-n 220 and 230 (S403), and the user switches the receiving mode to another. Receive data from subscriber units (PU-2, PU-n) 220,230.

On the other hand, when the operation mode of the second DTS emulator 242 is designated as the picket mode (S404), that is, when the second DTS emulator 242 is designated as the network picket station (NPS), the second DTS emulator 242 Receives a token from the first DTS emulator 242 and transmits its own data to the first DTS emulator 242 (S405). The second DTS emulator 242 receives data from the second data link processor 222 and then transmits the data when the token is received.

The second DTS emulator 242 returns the token to the network control station (NCS) (for example, the first subscriber unit (PU-1) 220) when data transmission is completed (S406).

In addition, the first DTS emulator 241 functioning as a network control station (NCS) has a list in which a predetermined order of transmitting data between other subscriber units (PU-2, PU-n) 220, 230 is pre-set. And all the subscriber units (PU-2, PU-n) 220 and 230 joined to the Link-11 network by sequentially transferring tokens to other subscriber units (PU-n) 230 according to the order of the list. This own data can be transmitted to the first subscriber unit (PU-1) 211. That is, after the second subscriber unit 220 transmits its data, the token is provided to the n-th subscriber unit 230, and the n-th DTS emulator 243 in the n-th subscriber unit 230 is provided. The data received from the n th data link processor 232 is transmitted to the first subscriber unit 210. N is a positive integer, and when n = 3, the n th subscriber unit 230 becomes a third subscriber unit.

In FIG. 4, for convenience of explanation, the first subscriber unit (PU-1) 210 is designated as a network control station (NCS), and the other subscriber units (PU-2, PU-n) 220, 230 are assigned to each other. Although the case is designated as a network picket station (NPS), a network control station (NCS) or a network picket station ( NPS) can be changed.

The data terminal set (DTS) emulation method according to the present invention can be embodied as computer readable code on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and also include those implemented in the form of carrier waves such as transmission over the Internet. The computer readable recording medium may also be distributed over a networked computer system so that computer readable code is stored and executed in a distributed manner.

Although the technical spirit of the present invention has been described in detail according to the above-described preferred embodiment, it should be noted that the above-described embodiment is for the purpose of description and not of limitation. In addition, those skilled in the art will understand that various embodiments are possible within the scope of the technical idea of the present invention.

200: Link-11
210,220,230: subscriber units (PU-1, PU-2, PU-n)
211,221,231: Tactical Data System (TDS)
212,222,232: Data Link Processor (DLP)
241,242,243: DTS emulator
301: Send data task
302: Recv Data Task
303: Recv Token Task
304: Timer

Claims (6)

A first data link processor connected to a first tactical data system to change data transmitted and received to the first tactical data system to a predetermined tactical data link format, and a first DTS to perform UDP communication with the first data link processor A first subscriber unit having an emulator;
A second data link processor connected to a second tactical data system to change data transmitted and received to the second tactical data system to the predetermined tactical data link format, and a second to perform UDP communication with the second data link processor. A second subscriber unit having a DTS emulator; And
A third data link processor connected to a third tactical data system to change data transmitted and received to the third tactical data system to the predetermined tactical data link format, and a third to perform UDP communication with the third data link processor. A third subscriber unit having a DTS emulator;
The first subscriber unit is designated as a network control station (NCS), the second and third subscriber units are designated as network picket stations (NPS),
The first DTS emulator sequentially sends tokens to the second and third DTS emulators, thereby enabling the second and third DTS emulators to sequentially transmit data to the first DTS emulator; A data terminal set (DTS) emulating device.
The method of claim 1, wherein the first DTS emulator,
A data transmitter for receiving data from the first data link processor in a transmission mode and transmitting the data to an external network;
A token receiver configured to change the transmission mode to a reception mode when a token is received;
A data receiving unit which sequentially receives data from the second subscriber unit and the third subscriber unit in the reception mode; And
And a timer for determining whether data is transmitted by the data transmitter for a predetermined time period.
2. The data terminal set (DTS) emulating apparatus according to claim 1, wherein the predetermined tactical datalink is Link-11.
A first data link processor connected to a first tactical data system to change data transmitted and received to the first tactical data system to a predetermined tactical data link format, and a first DTS to perform UDP communication with the first data link processor At a first subscriber unit with an emulator, requesting, by the first DTS emulator, whether there is data to transmit to the first data link processor (DLP);
When the first DTS emulator receives data to be transmitted from the first data link processor (DLP), transmitting the received data to a second subscriber unit connected to the Ethernet through UDP communication;
The first DTS emulator transferring a token to the second subscriber unit when there is no data to transmit for a predetermined time; And
The second subscriber unit is connected to a second tactical data system, the second data link processor for converting data transmitted and received to the second tactical data system into the predetermined tactical data link format, the second data link processor and UDP. A second DTS emulator for performing communication, and when the second DTS emulator receives the token, transmitting, by the second DTS emulator, data received from the second data link processor to the first subscriber unit; Data terminal set (DTS) emulation method comprising a.
The method of claim 4, wherein
Delivering the token to a third subscriber unit in a predetermined order;
The third subscriber unit is connected to a third tactical data system, the third data link processor for converting data to and from the third tactical data system into the predetermined tactical data link format, the third data link processor and the UDP. A third DTS emulator for performing communication, and when the third DTS emulator receives the token, transmitting, by the third DTS emulator, data received from the third data link processor to the first subscriber unit; And a data terminal set (DTS) emulation method further comprising.
In a data terminal set (DTS) emulator connected to a Link-11 network,
A data transmitter for receiving data from one data link processor included in the first subscriber unit and transmitting the received data to at least one of a second subscriber unit and a third subscriber unit in a transmission mode;
A token receiver configured to change the transmission mode to a reception mode when a token is received;
A data receiving unit which sequentially receives data from a second subscriber unit and a third subscriber unit in the reception mode; And
And a timer for determining whether data is transmitted for a predetermined time in the data transmitter,
And said first data link processor converts data to and from a first tactical data system into a format of said link-11 network.

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