KR20040065430A - Protocol converter of electric power watch system and method of protocol conversion - Google Patents

Abstract

PURPOSE: A protocol converter of a power monitoring system is provided to be realized in singular between an upper system and lower terminals, thereby converting a communication method and a protocol to communicate the upper system with the lower terminals and transceiving data in real time without time delay. CONSTITUTION: Lower terminals(200) monitor, measure, and control load power. An upper system(100) monitors, measures, and controls the lower terminals(200). A main module portion(310) sets a communication method and a protocol between the upper system(100) and the lower terminals(200), receives data information of the lower terminals(200) relative to a communication method and a protocol of the upper system(100) from a bidirectional memory, and transmits the received data information to the upper system(100). Lower terminal module portions(320) receive the set communication method and the protocol, obtain the data information from the lower terminals(200), and store the information in the bidirectional memory.

Description

PROTOCOL CONVERTER OF ELECTRIC POWER WATCH SYSTEM AND METHOD OF PROTOCOL CONVERSION

The present invention relates to a protocol converter and a protocol conversion method of a power monitoring system, and in particular, by implementing one protocol converter between an upper system and a lower terminal using different communication methods and protocols, the upper system and the lower terminal communicate with each other. The present invention relates to a protocol converter and a protocol conversion method of a power monitoring system capable of converting a communication method and a protocol so as to enable transmission, and transmitting and receiving data in real time without time delay during communication between a higher system and a lower terminal.

In general, a number of communication methods are used to monitor and control the lower terminal in the power monitoring system. Physical communication methods include FTT-10A (LON TALK protocol) for RS-485 (Recommended Standard-485), RS-422 (Recommended Standard-422), optical communication, Ethernet, and LON TALK protocols. Communication method), DNP3.0 (OPEN protocol of HARRIS), MODBUS (OPEN protocol of MODICON), LON TALK, IEC60870- Open protocols such as 5-103 (OPEN) are widely used, and protocols unique to each relay maker.

For reference, the RS-485 and the RS-422 are interface standards for interconnecting a computer and a peripheral device or a data terminal device (DTE) and a data line termination device (DCE), and the Ethernet is a DEC of the United States. Is a model of a local area network (LAN), developed jointly by Intel and Xerox, to exchange information at up to 1024 data stations at a transmission rate of 10 Mbps within a distance of about 2.5 km between data stations. A local network capable of implementing the IEEE 802.3 standard, the LON TALK is the OPEN protocol of ECHELON.

In the conventional power monitoring system, since the lower terminal must communicate data with the upper system, all communication methods and various protocols have to be embedded. However, in reality, embedding all communication methods and protocols in the lower terminal has a lot of difficulties in reality.

Therefore, in the conventional power monitoring system, a protocol converter is installed between the upper system and the lower terminal, so that the communication system and the protocol can be converted so that data communication is possible when the upper system and the lower terminal use different communication methods and protocols. It was.

For example, the communication method and protocol of the lower terminal are RS-485, DNP3.0, whereas the upper system is RS-232 (Recommended Standard-232) and MODBUS, and RS-485 DNP3.0 is changed to RS-232 MODBUS. Using a protocol converter that converts, there was no need to develop or install a MODBUS communication module for each lower terminal. As a result, the conventional power monitoring system can reduce the development cost of the communication module required to convert the communication method and protocol, reduce the manufacturing cost of the lower terminal, and increase the system compatibility in a short time. .

The conventional protocol converter has a built-in function capable of converting not only a protocol but also a protocol for converting an RS-232 signal into an RS-485 or RS-422 signal.

For reference, the RS-232 is an interface standard for interconnecting a computer and a peripheral device or a data terminal device (DTE) and a data line termination device (DCE), and the DNP3.0 is an open protocol of Harrier, The MODBUS is an open protocol of MODICON.

Next, a power monitoring system according to the prior art will be described with reference to FIG. 1.

The conventional power monitoring system includes an upper system 10, a plurality of lower terminals 20, a protocol converter 30 connected between the upper system 10 and the plurality of lower terminals 20.

The upper system 10 is a system for monitoring, measuring and controlling power of the plurality of lower terminals 20, and the lower terminal 20 is a terminal for monitoring, measuring, and controlling load power. In addition, the protocol converter 30 converts a communication method and a protocol to enable data communication when the communication method and the protocol do not match between the upper system 10 and the lower terminal 20.

Next, the operation of the conventional power monitoring system shown in FIG. 1 will be described in more detail with reference to the flowchart shown in FIG. 2.

When a protocol is received by the protocol converter 30 from the upper system 10 (step S101), the protocol converter 30 converts the protocol of the lower terminal 20 corresponding to the protocol of the upper system 10 into a protocol. After the step (S102), the converted protocol is transmitted to the lower terminal 20 (step S103). Thereafter, when the protocol of the lower terminal 20 is received by the protocol converter 30 (step S104), the protocol converter 30 sends the received protocol of the lower terminal 20 to the upper system 10. After converting to the protocol of step S105, it is transmitted to the upper system 10 (step S106).

3 is a block diagram showing the configuration of the protocol converter 30 according to the prior art.

As shown in FIG. 3, the conventional protocol converter 30 includes a display unit 31, a setting unit 32, a RAM 33, a ROM 34, and a first communication transceiver 35. ), A second communication transceiver 36, and a central control unit (CPU) 37.

The display unit 31 displays a communication state between the upper system 10 and the lower terminal 20 through a display device (for example, an LCD screen).

The setting unit 32 sets a communication method and protocol necessary for communication between the upper system 10 and the lower terminal 20.

The RAM 33 and the ROM 34 store protocols (or data) transmitted and received from the upper system 10 and the lower terminal 20, respectively.

The first communication transmitter / receiver 35 interfaces with the host system 10 to transmit and receive data, and the second communication transmitter / receiver 36 interfaces with the lower terminal 20 to transmit and receive data.

The central control unit (CPU) 37 includes the display unit 31, the setting unit 32, the RAM 33, the ROM 34, and the first communication transmitter and receiver. (35), respectively, controls the operation of the second communication transmitter / receiver 36 to transmit or receive data with them. In particular, the CPU 37 converts a protocol of the upper system 10 received through the first communication transmitter / receiver 35 into a protocol of the lower terminal 20 and then converts the second protocol into a protocol of the lower terminal 20. Transmit to the lower terminal 20 through the communication transmitter and receiver 36, and convert the protocol of the lower terminal 20 received through the second communication transmitter and receiver 36 to the protocol of the upper system 10. Then it serves to transmit to the upper system 10 through the first communication transmitter and receiver 35.

3, the central control unit (CPU) 37, the display unit 31, the setting unit 32, the RAM 33, the ROM 34, and the first The first communication transceiver 35 and the second communication transceiver 36 transmit and receive data by a bus signal, and the first communication transceiver 35 and the host system 10, and the first 2 Data is transmitted and received between the communication transceiver 36 and the lower terminal 20 in a serial signal.

The protocol converter 30 of the conventional power monitoring system having the above configuration corresponds to a predefined protocol of the upper system 10 when the protocol of the upper system 10 is transmitted to the protocol converter 30. After converting the protocol of the lower terminal 20 to the lower terminal 20 to obtain the information of the lower terminal 20, the information of the lower terminal 20, the protocol of the upper system 10 It transmits according to the format of.

However, the conventional protocol converter 30 cannot support all of the various complex communication methods and protocols because of the limited number of communication methods and protocols that can be converted. In addition, since a protocol converter corresponding to each communication method and protocol must be used, a separate protocol converter has to be used according to the configuration of the power monitoring system.

In addition, the protocol converter 30 of the conventional power monitoring system, as shown in Figure 2, receiving the protocol of the upper system 10 (S101), the step of converting the protocol of the lower terminal 20 (S102) ), Transmitting the converted protocol to the lower terminal 20 (S103), receiving the protocol of the lower terminal 20 (S104), and converting the protocol of the lower terminal 20 into the protocol of the upper system 10. There are a number of steps, such as the step of converting (S105), the step of transmitting the converted protocol to the upper system (S106), etc. At this time, the data validity is reduced according to the time delay generated in each step.

For example, the data received by the upper system 10 is not the real time data transmitted by the lower terminal 20 because the data is converted through various steps in the protocol converter 30. That is, the upper system 10 does not transmit or receive data with the lower terminal 20 in real time, but receives the data after the time required to convert the data (or protocol) in the protocol converter 30, thus validating the data. There was a downside to this falling.

In addition, in the conventional protocol converter, since the amount of data transmitted to the upper system 10 is determined according to the amount of data of the lower terminal 20, the lower terminal 20 when the amount of data of the lower terminal 20 is large. 20 and the upper system 10 had the disadvantage of having to communicate with each other several times. For example, if the data of the lower terminal 20 required by the upper system 10 is '100' and the amount of data that can be provided at one time by the lower terminal 20 is '10', In order to receive all the data of the lower terminal 20 in the upper system 10, a problem of having to communicate 10 times has occurred.

An object of the present invention is to solve the above problems, the upper system and the lower terminal power that can convert the communication method and protocol so that the data communication is possible with one protocol converter even if using a variety of communication methods and protocols The present invention provides a protocol converter and a protocol conversion method of a surveillance system.

Another object of the present invention is to provide a protocol converter and a protocol conversion method of a power monitoring system capable of transmitting and receiving data in real time without time delay during data communication between the upper system and the lower terminal.

1 is a block diagram showing the configuration of a power monitoring system according to the prior art;

2 is a flowchart illustrating an operation process of a protocol converter according to the prior art.

Figure 3 is a block diagram showing the configuration of a protocol converter according to the prior art

4 is a block diagram showing the configuration of a power monitoring system according to the present invention.

5 is a block diagram showing the configuration of a protocol converter according to the present invention.

6A to 6C are flowcharts illustrating an operation process of a protocol converter according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100: upper system 200: lower terminal

300: protocol converter 310: main module

311: display unit 312: setting unit

313: RAM 314: ROM

315: first communication transceiver 316: second communication transceiver

317: third communication transceiver 318: fourth communication transceiver

319: main central control unit (CPU) 320: lower terminal module

321: Display unit 322: RAM

323: ROM 324: first communication transceiver

325: second communication transceiver 326: third communication transceiver

327: Bidirectional RAM

328 terminal module central control unit (CPU)

330: Ron torque module unit 331: Display unit

332: RAM 333: ROM

334: first communication transceiver 335: second communication transceiver

336: Bidirectional RAM

337: Ron Torque Module Central Control Unit (CPU)

Protocol converter of the power monitoring system according to the present invention for achieving the above object,

A lower terminal for monitoring, measuring, and controlling load power;

An upper system for monitoring, measuring, and controlling the lower terminal,

The communication method and protocol of the upper system and the lower terminal are set, and when the data information of the lower terminal is requested from the upper system, the data information of the lower terminal corresponding to the communication method and protocol of the upper system is set. A main module unit for receiving from the bidirectional memory and transmitting to the upper system; And

And a lower terminal module unit configured to receive a communication scheme and a protocol of the lower terminal set in the main module unit, obtain data information from the lower terminal, and store the data information in a bidirectional memory.

The lower terminal module unit may include a display unit configured to display a communication state with the lower terminal unit; A memory unit for storing data information transmitted and received with the lower terminal; A plurality of communication transceivers for communication connection with the lower terminal; A bidirectional memory for bidirectional data communication so as to enable data sharing with the main module unit and storing data information received from the lower terminal; And in communication with the lower terminal, receives data information from the lower terminal according to a communication method and a protocol of the lower terminal set in the main module, and stores the data information in the bidirectional memory, wherein the display unit, the memory unit, and the A plurality of communication transceiver, characterized in that it comprises a terminal module central control unit (CPU) for controlling the operation of the bidirectional memory, respectively.

The memory unit of the lower terminal module unit may use any one of a RAM and a ROM.

The memory unit of the lower terminal module unit may use both a RAM and a ROM.

The bidirectional memory of the lower terminal module unit may use a RAM.

The communication method of the lower terminal module unit and the lower terminal includes RS-485, I-NET, FTT-10A, the protocol includes DNP3.0, MODBUS, I-NET, IEC60870-5-103, LON TALK Characterized in that.

The main module unit may include a display unit displaying a communication state with the upper system; A setting unit for setting a communication method and a protocol between the upper system and the lower terminal; A memory unit for storing a protocol transmitted and received with the host system; A plurality of communication transceivers for communication connection with the host system; And receiving data information of the lower terminal corresponding to the communication method and protocol of the upper system from the bidirectional memory of the lower terminal module unit and transmitting the data information to the upper system, and the display unit and the setting. And a main central controller for controlling operations of the memory unit and the plurality of communication transceivers, respectively.

The memory unit of the main module unit may use any one of a RAM and a ROM.

The memory unit of the main module unit is characterized by using both RAM and ROM.

The communication method of the main module unit and the host system includes RS-422 and RS-232C using TCP / IP, RS-485, and RS-485 2 ports via Ethernet, and the protocol is DNP3. .0, MODBUS, I-NET, IEC60870-5-103.

The main module unit receives data information of the lower terminal by simultaneously connecting two upper systems with different communication methods and protocols through duplication of RS-232C, Ethernet, and RS-485 ports. It is done.

The setting unit includes a type of the lower terminal, a communication method with the lower terminal, a protocol between the lower terminals, a data acquisition range of the lower terminal, a communication speed between the lower terminals, a communication method between the upper systems, and a protocol of the upper system. And setting data information including a communication speed between the upper systems.

The protocol converter of the power monitoring system communicates with one of the upper system and the lower terminal through RON TALK communication, and receives the communication scheme and protocol set by the main module to receive data of the lower terminal. The method may further include a rontorque module unit for acquiring and storing in the bidirectional memory.

The loan torque module unit may include a display unit which indicates a situation of communicating with any one of the upper system and the lower terminal; A memory unit for storing data information transmitted and received with any one of the upper system and the lower terminal; A plurality of communication transceivers for connecting to any one of the upper system and the lower terminal; A bidirectional memory for bidirectional data communication with the main central controller of the main module unit so as to share data, and storing data received from the lower terminal; And communicate with any one of the upper system and the lower terminal, store data information obtained from the lower terminal in the bidirectional memory, and perform operations of the display unit, the memory unit, the plurality of communication transceivers, and the bidirectional memory. It characterized in that it comprises a Ron Torque module central control unit for controlling each.

The memory unit of the rontorque module unit may use any one of a RAM and a ROM.

The memory unit of the lower terminal module unit may use both a RAM and a ROM.

The bidirectional memory is characterized by using a RAM (RAM).

The rontalk module unit is a low-terminal terminal of LON communication in which the communication method is FTT-10A and the protocol is LON TALK, and the communication method is TCP / IP, RS-485, RS- over Ethernet. 485 RS-422 or RS-232C using two ports, when the protocol is DNP3.0, MODBUS, I-NET or IEC60870-5-103 when the upper system is linked, it is used as the lower terminal module part. It is done.

The rontalk module unit has a communication system of FTT-10A and a protocol of RonTalk, and a communication method of RS-485 or I-NET and a protocol of DNP3.0, MODBUS, I-NET, or IEC60870-5-103. When the lower terminal is linked, it is characterized in that used as the main module unit.

Protocol conversion method of the power monitoring system according to the present invention for achieving the above object,

In the protocol conversion method of the power monitoring system comprising a protocol converter having an upper system, a lower terminal, a main module unit and a lower terminal module unit,

When the main module unit is linked with the upper system, the operation sequence between the main module unit and the lower terminal module unit is

Determining a communication method and a protocol between the upper system and the main module unit and storing the communication scheme and a protocol in a memory of the main module unit;

Determining a communication method between the lower terminal module unit and the lower terminal, a data acquisition range of a protocol and lower terminals, and storing the data in a memory of the main module unit;

Storing data stored in a memory of the main module unit in a bidirectional memory of the lower terminal module unit;

Storing data of the lower terminal stored in the bidirectional memory of the lower terminal module unit in the bidirectional memory of the lower terminal module unit; And

And transmitting, by the main module unit, data stored in the bidirectional memory of the lower terminal module unit to the upper system.

The main module memory is characterized in that the ROM (ROM).

The bidirectional memory of the lower terminal module unit may be a RAM.

Another protocol conversion method of the power monitoring system according to the present invention for achieving the above object,

In the protocol conversion method of the power monitoring system comprising a protocol converter having an upper system, a lower terminal, a main module unit and a lower terminal module unit and a rontorque module unit,

When the main module unit is linked with the host system, when the ron torque module unit is used for communication with the lower terminal using the rontalk protocol, an operation sequence between the main module unit and the rontorque module unit may include:

Determining, by the rontalk module unit, whether to associate with the upper system or the lower terminal using the rontalk protocol and to store in the memory of the main module unit;

Determining the data acquisition range of the lower terminal and storing it in a memory of the main module unit when the rontalk module is connected to the lower terminal using the rontalk protocol;

Storing the data acquisition range stored in the memory of the main module unit in the bidirectional memory of the ron torque module unit;

Storing data of the lower terminal stored in the bidirectional memory of the rontorque module unit in the bidirectional memory of the rontorque module unit; And

And transmitting, by the main module unit, data stored in the bidirectional memory of the rontorque module unit to the upper system.

The main module memory is characterized in that the ROM (ROM).

The bidirectional memory of the rontorque module may be a RAM.

Another protocol conversion method of the power monitoring system according to the present invention for achieving the above object,

In the protocol conversion method of the power monitoring system comprising a protocol converter having an upper system, a lower terminal, a main module unit and a lower terminal module unit and a rontorque module unit,

When the rontorque module unit is linked with the upper system, an operation sequence between the main module unit, the rontorque module unit, and the lower terminal module unit may be performed.

In the step of determining whether to connect with the upper system using the rontalk protocol or the lower terminal, the rontalk module unit determines to associate with the upper system using the rontalk protocol and stores the memory in the main module unit. Storing;

Determining a communication method, a protocol, and a data acquisition range of the lower terminals between the lower terminal module unit and the lower terminal, and storing them in a memory of the main module unit;

Storing data indicating association with the host system using the rontalk protocol stored in the memory of the main module unit in the bidirectional memory of the rontalk module unit;

Storing a communication method, a protocol, and a data acquisition range stored in a memory of the main module unit in a bidirectional memory of the lower terminal module unit;

Storing data of the lower terminal stored in the bidirectional memory of the lower terminal module unit in the bidirectional memory of the lower terminal module unit;

Storing data stored in the bidirectional memory of the lower terminal module unit in the bidirectional memory of the ron torque module unit; And

And transmitting data stored in the bidirectional memory of the rontalk module unit to the upper system.

The main module memory is characterized in that the ROM (ROM).

The bidirectional memory of the lower terminal module unit and the bidirectional memory of the rontorque module unit may be RAM.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. For reference, the same reference numerals will be used to refer to components having the same functions and configurations in the present invention and the conventional drawings.

4 is a block diagram showing the configuration of a power monitoring system according to the present invention.

The power monitoring system of the present invention is connected between the upper system 100, the plurality of lower terminals 200, the upper system 100 and the plurality of lower terminals 200, as shown in FIG. It includes a protocol converter 300 having a main module module 310, a lower terminal module unit 320, and a LON TALK module unit 330.

The upper system 100 is a system for monitoring and controlling the power of the plurality of lower terminals 200. In addition, the protocol converter 300 converts the communication method and the protocol to enable mutual data communication when the communication method and the protocol do not match between the upper system 100 and the lower terminal 200. In particular, the protocol converter 300 may be configured to communicate various communication schemes and protocols of the upper system 100 and the lower terminal 200 with the upper system 100 and the lower terminal 200. It converts to protocol.

5 is a block diagram showing the configuration of the protocol converter 300 according to the present invention.

As illustrated in FIG. 5, the protocol converter 300 includes a main module unit 310, a lower terminal module unit 320, and a rontorque module unit 330.

The main module unit 310 is responsible for communicating with the upper system 100, and includes a display unit 311, a setting unit 312, a RAM 313, a ROM 314, and a second unit. A first communication transceiver 315, a second communication transceiver 316, a third communication transceiver 317, a fourth communication transceiver 318, and a main central controller (CPU) 319 are provided.

The display unit 311 displays a communication state with the upper system 100 through a display device (for example, an LCD screen).

The setting unit 312 sets the communication method and protocol of the upper system 100 and the lower terminal 200, respectively. That is, the setting unit 312 in the type of the lower terminal 200 and the communication method with the lower terminal 200 (for example, RS485, I-NET, FTT-10A), the protocol between the lower terminal 200 (Eg, DNP3.0, MODBUS, I-NET, IEC60870-5-103, LON TALK), data acquisition range of the lower terminal 200, communication speed between the lower terminal 200, the upper system ( 100) communication method (e.g. RS-232C, RS-485, RS-422, I-NET, FTT-10A, Ethernet), protocol of upper system (e.g. DNP3.0, MODBUS, I- NET, IEC60870-5-103, LON TALK) and communication speed.

For reference, the I-NET is a unique communication method and protocol of LG (LG), the FTT-10A is a communication method of the Ron Talk protocol, the DNP3.0 is an open protocol of Harrier (HARRIA), IEC60870-5-103 is an international standard protocol documented in 1997 by the IEC Technical Commission57, Working Group03.

The RAM 313 and the ROM 314 store protocols (or data) transmitted and received with the host system 100, respectively.

The first to fourth communication transceivers 315 to 318 are communication connection units for connecting to the host system 100. For example, the first communication transceiver 315 is an Ethernet communication unit and the first communication unit. 2 The communication transceiver 316 is an RS-485 communication unit, the third communication transceiver 317 is an RS-485 communication unit, and the fourth communication transceiver 318 is composed of an RS-232 communication unit.

The main CPU 319 is responsible for communication with the upper system 100. The display unit 311, the setting unit 312, the RAM 313, and the ROM (ROM) ( 314) and control operations of the first to fourth communication transmitters and receivers 315 to 318, respectively.

In addition, although not shown in the drawing, the main module unit 310 includes a plurality of module connection units. In this case, the plurality of module connection units may be configured in combination in accordance with the configuration of the plurality of lower terminal module unit 320 and the rontorque module unit 330.

The lower terminal module unit 320 is a place in charge of communication with the lower terminal 200, the display unit 321, RAM (RAM) 322, ROM (ROM) 323, the first communication transceiver ( 324, a second communication transceiver 325, a third communication transceiver 326, a two-way RAM 327, and a terminal module central controller (CPU) 328.

The display unit 321 displays a communication state with the lower terminal 200 through a display device (for example, an LCD screen).

The RAM 322 and the ROM 323 respectively store protocols (or data) transmitted / received with the lower terminal 200.

The first to third communication transceivers 324 to 326 are communication connection units for connecting to the lower terminal 200. For example, the first communication transceiver 324 is an RS-232 communication unit and the second communication unit. The communication transceiver 325 is an RS-485 communication unit, and the third communication transceiver 326 is configured as an I-NET communication unit. At this time, the first communication transceiver 324 provides an interface for downloading a program and monitoring a module in a program memory of the terminal module CPU 328, and transmitting and receiving the second and third communication. The units 325 and 326 provide an interface to communicate with the lower terminal 200.

The bidirectional RAM 327 is a memory capable of bidirectional data access so as to share data with the main CPU 319 of the main module 310.

The terminal module CPU 328 is responsible for communication with the lower terminal 200. The display unit 321, the RAM 322, the ROM 323, and the first to the second to second terminals 200 and 260. The third communication transmitter / receiver 324-326 and the bidirectional RAM 327 respectively control operations.

The LON TALK module unit 330 communicates with any one of the upper system 100 and the lower terminal 200 through Ron TALK communication, and displays the display unit 331 and the RAM. (RAM) 332, ROM (333), first communication transceiver 334, second communication transceiver 335, bidirectional RAM (336), ron torque module central controller (CPU) 337).

The display unit 331 displays a communication state with the lower terminal 200 or the upper system 100 using a LON TALK communication through a display device (eg, an LCD screen).

The RAM 332 and the ROM 333 communicate protocols (or data) transmitted and received with the lower terminal 200 or the upper system 100 through LON TALK communication, respectively. Save it.

The first communication transmitter / receiver 334 provides an interface for downloading a program and monitoring a module in a program memory of the ron talk module CPU 337. The first communication transceiver 334 includes an RS-232 communication unit.

The second communication transceiver 335 is an FTT-10A communication unit that provides an interface for ron talk communication.

The bidirectional RAM 336 is a memory capable of bidirectional data access so as to share data with the main CPU 319 of the main module unit 310.

The ron torque module CPU 337 is responsible for communication with the lower terminal 200 or the upper system 100 using LON TALK communication, and the display unit 331 and the RAM 332, the ROM 333, the first and second communication transmitters and receivers 334 and 335, and the bidirectional RAM 336, respectively.

When the main module unit 310 requests data of the lower terminal 200 from the upper system 100 by using a communication method and a communication protocol between the upper system 100 preset by the setting unit 312. Data corresponding thereto is received from the bidirectional RAM 327. The communication method responsive to the upper system 100 includes TCP / IP, RS-485, and RS-232 using two ports (RS-485) through Ethernet communication, and a communication protocol. DNP3.0, MODBUS, I-NET, IEC60870-5-103 are available. In addition, since two Ethernet and RS-485 ports are provided, two upper systems having different communication protocols may simultaneously require separate communication data.

The lower terminal module unit 320 may access data simultaneously in both directions after acquiring data of the lower terminal 200 using a communication method and a communication protocol previously set in the setting unit 310 of the main module unit 310. The data is stored in the bidirectional RAM 327. RS-485, I-NET, FTT-10A is possible as the communication method with the lower terminal 200, DNP3.0, MODBUS, I-NET, IEC60870-5-103, LON TALK is possible as the communication protocol. Do.

The rontorque module unit 330 may communicate with both the upper system 100 and the lower terminal 200. The rontalk module unit 330 may be used as a terminal module when the Ron communication lower terminal is connected to a general upper system, and two higher systems having a Ron protocol and a communication method of FTT-10A are provided. At the same time, separate communication data may be required.

When the rontorque module unit 330 is used as a terminal module, the ron (Lon) communication unit according to the type of the LON communication terminal set by the setting unit 312 of the main module 310 and the contents of the data range to be acquired through communication is performed. LON) Stores the data of the communication terminal in the bidirectional RAM. In addition, in connection with the upper system 100 having a Ron protocol and the FTT-10A communication method and a general terminal, the contents of the two-way RAM 327 of the lower terminal module unit 320 may be displayed. After acquiring through 310, it may be linked to the upper system 100.

Next, an operation process of the protocol converter 300 according to the present invention will be described with reference to FIGS. 6A and 6C.

Referring to FIG. 6A, when the main module unit 310 according to the present invention is linked to the upper system 100, an operation sequence between the main module unit 310 and the lower terminal module unit 320 is as follows. same.

First, the communication method and protocol between the upper system 100 and the main module unit 310 are determined and stored in the memory (eg, the ROM 314) of the main module unit 310 (step S201). .

Next, the communication method between the lower terminal module unit 320 and the lower terminal 200 and the data acquisition range of the protocol and the lower terminal are determined and stored in the ROM 314 of the main module unit 310. (Step S202).

Next, data such as a data acquisition range stored in the ROM 314 of the main module unit 310 is stored in the bidirectional RAM 327 of the lower terminal module unit 320 (step S203).

Next, the data of the lower terminal 200 corresponding to the data acquisition range stored in the bidirectional RAM 327 of the lower terminal module unit 320 is stored in the bidirectional RAM 327 of the lower terminal module unit 320. (Step S204).

Next, the main module 310 transmits the data stored in the bidirectional RAM 327 of the lower terminal module 320 to the upper system 100 (step S205).

Next, when the main module unit 310 according to the present invention in conjunction with the upper system 100 with reference to Figure 6b, the low-terminal terminal 200 using the rontalk protocol to the rontalk module unit 330 When used for communication with) the operation sequence between the main module 310 and the rontorque module 330 is as follows.

First, the rontalk module unit 330 determines whether to associate with the upper system 100 or the lower terminal 200 using the rontalk protocol, the ROM 314 of the main module unit 310. ) (Step S301).

Next, when the rontalk module unit 330 is linked with the lower terminal 200 using the rontalk protocol, the ROM of the main module unit 310 is determined by determining a data acquisition range of the lower terminal 200. 314 (step S302).

Then, the data acquisition range stored in the ROM 314 of the main module unit 310 is stored in the bidirectional RAM 336 of the rontorque module 330 (step S303).

Next, the data of the lower terminal 200 corresponding to the data acquisition range stored in the bidirectional RAM 336 of the rontorque module 330 is stored in the bidirectional RAM 336 of the rontorque module 330. (Step S304).

Next, the main module 310 transmits the data stored in the bidirectional RAM 336 of the rontorque module 330 to the upper system 100 (step S305).

Next, when the rontorque module unit 330 according to the present invention is linked to the upper system 100 with reference to FIG. 6C, the main module unit 310, the rontorque module unit 330, and the lower unit are provided. The operation sequence between the terminal module 320 is as follows.

First, in the step of determining whether the rontalk module unit 330 is to be associated with the upper system 100 using the rontalk protocol or the lower terminal 200, the higher system using the rontalk protocol. It is determined to associate with 100 and stored in the ROM 314 of the main module unit 310 (step S401).

Next, the communication method, protocol, and data acquisition range of the lower terminals are determined between the lower terminal module unit 320 and the lower terminal 200 and stored in the ROM 314 of the main module unit 310 (step). S402).

Next, the bidirectional RAM 336 of the rontorque module unit 330 indicates data associated with the host system 100 using the rontorque protocol stored in the ROM 314 of the main module unit 310. In step S403.

Next, the communication method, protocol, and data acquisition range stored in the ROM 314 of the main module unit 310 are stored in the bidirectional RAM 327 of the lower terminal module unit 320 (step S404).

Next, the data of the lower terminal 200 corresponding to the data acquisition range stored in the bidirectional RAM 327 of the lower terminal module unit 320 is stored in the bidirectional RAM 327 of the lower terminal module unit 320. (Step S405).

Next, the data stored in the bidirectional RAM 327 of the lower terminal module 320 is stored in the bidirectional RAM 336 of the rontorque module 330 (step S406).

Next, the data stored in the bidirectional RAM 336 of the rontorque module 330 is transmitted to the upper system 100 (step S407).

Therefore, in the power monitoring system according to the present invention, when the upper system 100 acquires data of the lower terminal 200, converting to a protocol of the lower terminal in the operation process of the conventional protocol converter shown in FIG. In operation S102, transmitting the protocol converted into the lower terminal in step S103 and receiving the protocol of the lower terminal in step S104 may minimize the delay time.

In addition, when data of the lower terminal 200 is transmitted to the upper system 100, the data of the lower terminal 200 may be transmitted to the upper system 100 by one communication by using the data stored in the bidirectional RAM 327. have.

Preferred embodiments of the present invention as described above are disclosed for purposes of illustration, and those skilled in the art will be able to make various modifications, changes, additions, etc. within the spirit and scope of the present invention, such modifications and changes belong to the following claims Should be seen.

As described above, the protocol converter and the protocol conversion method of the power monitoring system according to the present invention includes a communication method and a communication method such that a data communication is possible with one protocol converter even when the upper system and the lower terminal use various communication methods and protocols. You can convert the protocol.

In addition, there is an effect that can transmit and receive data in real time without time delay during data communication between the upper system and the lower terminal.

Claims (11)

In the protocol converter of the power monitoring system, A lower terminal for monitoring, measuring, and controlling load power; An upper system for monitoring, measuring, and controlling the lower terminal, Setting a communication method and a protocol between the upper system and the lower terminal, and when the data information of the lower terminal is requested from the upper system, the lower terminal module converts the data information of the lower terminal corresponding to the communication method and protocol of the upper system. A main module unit for receiving from the bidirectional memory of the unit and transmitting to the upper system; And And a lower terminal module unit configured to receive a communication scheme and a protocol of the lower terminal set in the main module unit, obtain data information from the lower terminal, and store the data information in a bidirectional memory. The method of claim 1, wherein the lower terminal module unit, A display unit which displays a communication state with the lower terminal; A memory unit for storing data information transmitted and received with the lower terminal; A plurality of communication transceivers for communication connection with the lower terminal; Bidirectional data communication to enable data sharing with the main module unit, Bidirectional memory for storing the data information received from the lower terminal; And It is in charge of communication with the lower terminal, and receives data information from the lower terminal by the communication method and protocol of the lower terminal set in the main module unit and stores in the bidirectional memory, the display unit, the memory unit, the plurality And a plurality of communication transmitting and receiving units, and a terminal module central control unit (CPU) for controlling the operation of the bidirectional memory, respectively. The method of claim 1, wherein the main module unit, A display unit which displays a communication state with the upper system; A setting unit for setting a communication method and a protocol between the upper system and the lower terminal; A memory unit for storing a protocol transmitted and received with the host system; A plurality of communication transceivers for communication connection with the host system; And Responsible for communication with the upper system, and receives data information of the lower terminal corresponding to the communication method and protocol of the upper system from the bidirectional memory of the lower terminal module unit and transmits to the upper system, the display unit, the setting unit And a main central controller for controlling operations of the memory unit and the plurality of communication transceivers, respectively. The method of claim 3, wherein The main module unit is a protocol converter of the power monitoring system, characterized in that for receiving the data information of the lower terminal by simultaneously connecting with the two upper system, the communication method and the protocol is different through the duplication. The method of claim 3, wherein The setting unit includes a type of the lower terminal, a communication method with the lower terminal, a protocol between the lower terminals, a data acquisition range of the lower terminal, a communication speed between the lower terminals, a communication method between the upper systems, and a protocol of the upper system. And setting data information including a communication speed between the upper systems. The method of claim 1, A loan that communicates with one of the upper system and one of the lower terminals through a Ron TALK communication, receives a communication scheme and a protocol set in the main module, acquires data of the lower terminal, and stores the data in the bidirectional memory. Protocol converter of the power monitoring system further comprising a torque module unit. The method of claim 6, wherein the ron torque module unit, A display unit indicating a situation of communicating with any one of the upper system and the lower terminal; A memory unit for storing data information transmitted and received with any one of the upper system and the lower terminal; A plurality of communication transceivers for connecting to any one of the upper system and the lower terminal; A bidirectional memory for bidirectional data communication with the main central controller of the main module unit so as to share data, and storing data received from the lower terminal; And Communicate with any one of the upper system and the lower terminal, store data information obtained from the lower terminal in the bidirectional memory, and perform operations of the display unit, the memory unit, the plurality of communication transceivers, and the bidirectional memory, respectively. A protocol converter of a power monitoring system comprising a ron torque module central control unit for controlling. The method of claim 6, wherein the ron torque module unit, 2 ports of TCP / IP, RS-485, and RS-485 via Ethernet ) If RS-422 or RS-232C is used and the upper system with protocol is DNP3.0, MODBUS, I-NET or IEC60870-5-103, it is used as the lower terminal module part or the communication method is FTT-10A. It is used as the main module part when the host system where the protocol is Ron Talk and the lower terminal whose communication method is RS-485 or I-NET and the protocol is DNP3.0, MODBUS, I-NET or IEC60870-5-103 are connected. Protocol converter of a power monitoring system, characterized in that. In the protocol conversion method of the power monitoring system comprising a protocol converter having an upper system, a lower terminal, a main module unit and a lower terminal module unit, When the main module unit is linked with the upper system, the operation sequence between the main module unit and the lower terminal module unit is Determining a communication method and a protocol between the upper system and the main module unit and storing the communication scheme and a protocol in a memory of the main module unit; Determining a communication method between the lower terminal module unit and the lower terminal, a data acquisition range of a protocol and lower terminals, and storing the data in a memory of the main module unit; Storing data stored in a memory of the main module unit in a bidirectional memory of the lower terminal module unit; Storing data of the lower terminal stored in the bidirectional memory of the lower terminal module unit in the bidirectional memory of the lower terminal module unit; And And transmitting, by the main module unit, data stored in the bidirectional memory of the lower terminal module unit to the upper system. In the protocol conversion method of the power monitoring system comprising a protocol converter having an upper system, a lower terminal, a main module unit and a lower terminal module unit and a rontorque module unit, When the main module unit is linked with the host system, when the ron torque module unit is used for communication with the lower terminal using the rontalk protocol, an operation sequence between the main module unit and the rontorque module unit may include: Determining, by the rontalk module unit, whether to associate with the upper system or the lower terminal using the rontalk protocol and to store in the memory of the main module unit; Determining the data acquisition range of the lower terminal and storing it in a memory of the main module unit when the rontalk module is connected to the lower terminal using the rontalk protocol; Storing the data acquisition range stored in the ROM of the main module unit in a bidirectional memory of the ron torque module unit; Storing data of the lower terminal stored in the bidirectional memory of the rontorque module unit in the bidirectional memory of the rontorque module unit; And And transmitting, by the main module unit, data stored in the bidirectional memory of the rontorque module unit to the upper system. In the protocol conversion method of the power monitoring system comprising a protocol converter having an upper system, a lower terminal, a main module unit and a lower terminal module unit and a rontorque module unit, When the rontorque module unit is linked with the upper system, an operation sequence between the main module unit, the rontorque module unit, and the lower terminal module unit may be performed. In the step of determining whether to connect with the upper system using the rontalk protocol or the lower terminal, the rontalk module unit determines to associate with the upper system using the rontalk protocol and stores the memory in the main module unit. Storing; Determining a communication method, a protocol, and a data acquisition range of the lower terminals between the lower terminal module unit and the lower terminal, and storing them in a memory of the main module unit; Storing data indicating association with the host system using the rontalk protocol stored in the memory of the main module unit in the bidirectional memory of the rontalk module unit; Storing a communication method, a protocol, and a data acquisition range stored in a memory of the main module unit in a bidirectional memory of the lower terminal module unit; Storing data of the lower terminal stored in the bidirectional memory of the lower terminal module unit in the bidirectional memory of the lower terminal module unit; Storing data stored in the bidirectional memory of the lower terminal module unit in the bidirectional memory of the ron torque module unit; And And transmitting data stored in the bidirectional memory of the rontalk module unit to the upper system.