KR101865136B1 - Flexible control system based information and communication technologies - Google Patents

Abstract

The present invention relates to an ICT-based flexible control system capable of providing a control system capable of improving compatibility by applying mutual communication between equipments and facilitating correction and maintenance of control logic and reflecting the demands of customers And a connection connector for allowing the input and output modules to be detachable for change of control logic, hardware optimization and expandability. The data of the mounted input module is acquired, changed to CAN communication data and output to the main board, An input / output module coupling means for receiving control data output from the board via CAN communication and outputting the control data through an output module; Output module connecting means via CAN communication, changes the control logic according to the mounted hardware platform using the standardized PLC software CODESYS, and transmits the control data to the input / output module combining means via CAN communication Board, to implement an ICT-based flexible control system.

Description

[0001] The present invention relates to an ICT-based flexible control system,

The present invention relates to a flexible control system based on information and communication technologies (ICT), in particular, to improve compatibility by applying mutual communication between devices, The present invention relates to an ICT-based flexible control system capable of providing a control system having an integrated circuit.

In general, the controller used for control is closed, has no scalability, and is not easy for user modification. Especially, MCU (Micro Controller Unit) based controller is operated by the confirmed program, so it is difficult to change graphics and logic.

In addition, it is difficult to add an input port and an output port to an MCU-based controller, and additional cost is added when a new protocol is added.

In addition, a general MCU-based controller is a control method using a microcomputer, which is hardware-optimized but is machine-oriented design. Since a product used for factory control is limited to the use of a mono LCD-based controller and is a firmware-based MCU, After coding, it is very difficult for user participation or the user to arbitrarily change the control logic.

In addition, the controller using the PLC is easy to change the program, but it is difficult to design an optimized hardware like a microcomputer, and the input / output card on which the input signal is provided is also limited.

On the other hand, a conventional technique for an automatic control system for automatically controlling equipment is disclosed in Patent Documents 1 to 2 below.

The prior art disclosed in Patent Document 1 includes a local wireless communication module and a wireless transmission / reception module that can process input / output points of four types (Analog Input, Analog Output, Digital Input, and Digital Output) It is related to various control devices including a DDC (Direct Digital Controller) and a wireless transmitter / receiver with a built-in receiver unit. By doing so, it is possible to drastically reduce the number of piping / wiring that occupies a large portion in the construction of a building and a factory, , It is possible to efficiently cope with the reduction of construction cost, convenience of construction, smooth maintenance and repair of automatic control system, use of building and factory, and layout change.

The prior art disclosed in Patent Document 2 includes a first master module for receiving and storing first control data output from a first MPU (Micro Processing Unit) and outputting the first control data; And receives and stores second control data output from the second MPU, receives and stores the first control data, compares the first control data with the second control data, A second master module for determining the presence or absence of the second master module; And at least one slave module that operates by receiving the first or second control data through a signal line.

Through this configuration, a sniffing function is added to the master module to monitor data in real time and to operate the system normally when an unexpected situation occurs.

Korean Patent Laid-Open No. 10-2004-0063294 (published on July 14, 2004) (Automatic control system using wireless communication) Korean Patent Laid-open Publication No. 10-2015-0025759 (published on May 11, 2015) (sniffing-based PLC control system)

However, since the above-mentioned conventional technology has hardware optimized and uses a definite program, it is possible to perform the control of the equipment to some extent efficiently, but since it is a machine-oriented design, it is closed and not scalable, There is a difficult disadvantage that the user has to modify it.

In addition, it is difficult to add an input port and an output port in the prior art, and there is a disadvantage in that the protocol addition adds a lot of cost.

In addition, since the firmware-based MCU controller is a professional programming coding in the prior art, there is a disadvantage that it is difficult for users to participate or change logic.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide an apparatus and a method for improving compatibility by applying mutual communication between equipments, The present invention provides an ICT-based flexible control system capable of providing a control system that can reflect a variety of information.

Another object of the present invention is to provide an ICT-based flexible control system which facilitates addition of input and output ports and facilitates protocol modification.

It is another object of the present invention to provide a TFT LCD-based controller and to provide an ICT-based flexible control system that reflects user requirements for an interface with a user-centric design.

It is still another object of the present invention to provide an ICT-based flexible control system capable of modifying graphics and control logic according to an ICT-based user request.

In order to achieve the above object, an ICT-based flexible control system according to the present invention combines input and output modules for change of control logic, hardware optimization and expandability, An input / output module combining means for converting the communication data into the communication data and outputting the communication data to the main board, the control data output from the main board through CAN communication, and outputting the control data through an output module; And a main board connected to the input / output module coupling means via CAN communication, and changing the control logic according to a mounted hardware platform using standardized PLC software CODESYS.

The input / output module coupling means is characterized in that the hardware module is detachable.

Wherein the input / output module coupling means comprises: an input / output unit for interfacing data with the mounting module; A main control unit for controlling the input data of the module mounted through the input / output unit to be transferred to the main board, and transmitting the data transmitted from the main board to the mounting module through the input / output unit; And a CAN communication unit for converting the data output from the main control unit into CAN communication data and transmitting the data to the main board and transmitting the data received from the main board to the main control unit.

The input / output unit includes a digital input / output circuit for inputting / outputting digital data; An analog input / output circuit for inputting and outputting analog signals; And a temperature input circuit for inputting temperature information.

The temperature input circuit receives a temperature measured by a resistance temperature detector (RTD) and a temperature measured by a thermocouple.

In this case, the main board is configured to be detachable from the LCD module, which is a display device, and the control module, which controls the overall operation of the system, and the LCD module is mounted by changing its size according to the hardware to be extended.

The main board includes a CAN communication unit for transmitting and receiving data to and from the input / output module coupling unit via CAN communication; The control logic is changed according to the installed hardware platform using the standardized PLC software CODESYS, the system is controlled on the basis of the data inputted from the mounted module, the control data is generated and transmitted to the input / output module combining means And a main control unit for controlling the main control unit.

According to the present invention, it is possible to improve compatibility by applying mutual communication between equipments, and it is easy to modify and maintain the control logic, thereby being able to reflect the demands of customers.

Further, according to the present invention, it is easy to add input and output ports, and it is advantageous that the protocol can be easily changed by using PLC open software.

In addition, according to the present invention, the user-oriented design can reflect the user requirements for the interface, and it is also possible to modify the graphics and the control logic according to the user's demand based on the ICT.

1 is a schematic configuration diagram of an ICT-based flexible control system according to the present invention,
FIG. 2 is a conceptual view illustrating implementation of a flexible control system in the present invention,
FIG. 3 is a block diagram of an embodiment of the input / output module coupling means of FIG. 1;
4 is an exemplary view of a flexible control system newly implemented by the present invention;

Hereinafter, an ICT-based flexible control system according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic block diagram of an ICT-based flexible control system according to a preferred embodiment of the present invention.

The ICT-based flexible control system according to the present invention includes a main board 100 and an input / output module coupling means 200.

The input / output module coupling unit 200 is a part for freely mounting and dismounting the input / output module. The input / output module coupling unit 200 removes various input and output modules for changing control logic, hardware optimization and expandability, To CAN communication data and outputs the data to the main board 100. The control data output from the main board 100 is received through the CAN communication and then output through the output module.

Herein, the input module and the output module include a data interface and refer to a newly mounted hardware module for hardware variability. In order to meet the requirements for input / output change occurring in the field, the input module and the output module suitable for the controller to be implemented by the user are freely detached.

As shown in FIG. 3, the input / output module coupling unit 200 includes an input / output unit 210 for interfacing data with a mounting module, input data of a module mounted through the input / output unit 210, A main control unit (MCU) 220 for controlling the transmission of data from the main board 100 to the mounting module through the input / output unit 210, The output data is converted into CAN communication data and transmitted to the main board 100. The CAN communication unit 230 transmits the data received from the main board 100 to the main control unit 220. [

The input / output unit 210 includes digital input / output circuits 211 and 212 for inputting / outputting digital data, analog input / output circuits 213 and 214 for inputting / outputting analog signals, temperature And an input circuit 215.

Here, the temperature input circuit 215 preferably receives a temperature measured by a resistance temperature detector (RTD) and a temperature measured by a thermocouple.

On the other hand, the main board 100 is connected to the input / output module coupling unit 200 through CAN communication, and changes the control logic according to the installed hardware platform using the standardized PLC software CODESYS.

It is preferable that the main board 100 is detachably attached to the LCD module as a display device and the control module for controlling the overall operation of the system.

The main board 100 changes the control logic according to the installed hardware platform using the CAN communication unit 106 that transmits and receives data through the CAN communication with the input / output module coupling unit 200 and the standardized PLC software CODESYS, A main control unit (MCU) 102 for controlling the system on the basis of data input from the mounted module and generating control data and transmitting the control data to the input / output module coupling means 200, a display unit 101 for information display ).

In addition to this configuration, the main board 100 may include all of the basic components that implement a conventional controller.

For example, a real time clock (RTC) 103, a communication module 104 for external communication, a memory 105 for storing data, an HDMI FRAMER, a SERIAL PORT, a USB, a RESET, a DC POWER, . ≪ / RTI >

The detailed operation of the ICT-based flexible control system according to the preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4. FIG.

First, the control system of the present invention secures hardware variability by separating an LCD module as a display device, a control module (MCU) as a control device, and an input / output module as an input / output device, and using necessary modules in combination.

FIG. 2 is a conceptual view of the above-described ICT-based flexible control system. The LCD module may be selected and installed in accordance with a hardware platform for implementing LCD modules of 5 inch, 7 inch, 10 inch, 15 inch, (A, B, C, D, E, F, G, and E) are selectively combined to implement a controller suitable for control.

Although not shown in FIG. 1, a coupling connector capable of detachably mounting the input / output module is provided to freely attach and detach a necessary input / output module. Preferably, the mating connector is physically contactable with the connector formed in the removable module.

In addition, according to the size of the LCD module to be mounted, the LCD module is provided with a sheet paper on the front surface of the display part so that various sizes of LCD modules can be selectively used. Basically, the screen size is set so that the largest 15-inch LCD module is mounted. When a small LCD is mounted, a sheet corresponding to the LCD module mounted on the front sheet can be used. It is preferable to use various icons according to the size of the LCD module and the icon of the controller to be implemented.

When a user desires to implement a controller suitable for the system, a sheet suitable for a mounted LCD module is attached to the front of the display unit 101 to complete the display device, and the input / output module necessary for the input / output connector portion provided on the rear side of the controller is mounted.

When a new input / output module is mounted, the control logic must be changed, which will be described in detail below.

In order to change the input / output according to a request generated in the field, a user mounts an input / output module suitable for the input / output module combining means 200 as is well known. The various input and output modules can be detached by the input / output module coupling means 200, so that the control logic can be changed, hardware optimization and expandability can be realized.

Here, the mounting module includes a module for interfacing data with a digital signal, and a module for interfacing data with an analog signal.

Therefore, it is preferable to implement a coupling part for allowing the digital input / output module and the analog input / output module to be attached and detached freely to the input / output module coupling unit 200, and a temperature measurement module coupling part for inputting the temperature data measured from the outside Do.

For example, when the hardware module to be mounted is a digital input / output module, the input / output unit 210 of the input / output module combining unit 200 may include a digital input circuit 211 and a digital output circuit 212 And an analog input circuit 213 and an analog output circuit 214 that can input and output data in an analog manner when the mounted hardware module is an analog input / output module. And a temperature input circuit 215 for inputting temperature information measured and inputted from an external temperature measurement module.

Output module 210 to the controller to be implemented by the user, and then changes the control logic by using the main board 100. [

To change the control logic, a menu is selected through the display unit 101, and when a control logic change is selected, a control logic variable operation is performed.

It is desirable to change the control logic according to the hardware platform installed using the standardized PLC software CODESYS. The standardized PLC software, CODESYS, basically supports the standard functions such as the motion function defined by the PLC OPEN, and the necessary libraries are stored so that the PLC hardware makers can purchase and change the control logic according to their hardware platforms. Changing the control logic according to the hardware platform using the standardized PLC software CODESYS is a technique already known in the field of controllers, so a detailed description thereof will be omitted.

Through the above process, a user installs an appropriate hardware module for input / output change, changes the control logic using the built-in PLC software CODESYS, and executes control using the actual controller.

The data output from the mounted hardware module is transferred to the main control unit 220 through the input / output unit 210 of the input / output module coupling means 200 when the controller (control system) is operated. If the mounted hardware module is a digital module (DI module), data is acquired via the digital input circuit 211 and transferred to the main control unit 220. If the mounted hardware module is an analog module (AI module) A signal is acquired via the main control unit 220 and transmitted to the main control unit 220. The temperature information measured from the external temperature measurement module (TC, RTD) is acquired through the temperature input circuit 215 and transmitted to the main control unit 220. The external temperature measurement module may be implemented by a resistance temperature detector (RTD) or a thermocouple.

The main control unit 220 transfers the input data acquired through the input / output unit 210 to the CAN communication unit 230. The CAN communication unit 230 converts the input data to be transmitted into the CAN OPEN communication format and transmits it to the main board 100.

The CAN communication unit 106 of the main board 100 receives the input data transmitted from the input / output module combination unit 200 and transmits the input data to the main control unit 102.

The main control unit 102 analyzes the received input data and generates control data suitable for the received input data. The generated control data is transmitted to the input / output module combining unit 200 through the CAN communication unit 106.

The CAN communication unit 230 of the input / output module coupling unit 200 receives the output data output from the main board 100 and transmits the received output data to the main control unit 220. The main control unit 220 analyzes the received output data to determine which hardware module to output and outputs the output data received from the mainboard 100 to the corresponding hardware module.

The input / output unit 211 outputs the data output from the main control unit 220 to the coupled hardware module through the corresponding circuit. When the output data is analog output, it is outputted through analog output module (AO). When output data is digital output data, it is outputted through digital output module (DO, DC 24V, AC 220V).

As described above, according to the present invention, data is transmitted / received based on ICT such as mutual CAN communication between the input / output module and the main board, thereby improving the efficiency of the mutual data interface between the devices.

In addition, the controller, which is a total control system, is divided into an LCD module as a display device, a control module as a control device, and an input / output module as an input / output device, and each module is detachably mounted to flexibly implement a control system. A controller is provided.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It is obvious to those who have.

The present invention is applied to a technique in which a controller, which is a control system, can be used by a user in a variable manner.

100: Motherboard
101:
102: Main control unit
103: Real-time clock
104: CAN
105: Memory
106: CAN communication section
200: Input / output module coupling means
210: Input /
220: Main control unit
230: CAN communication section

Claims (7)

A control system capable of variably implementing a control controller,
And a connection connector for detachably connecting the input and output modules in order to change control logic, hardware optimization and expandability. The data of the mounted input module is acquired, changed to CAN communication data and output to the main board, An input / output module coupling means for receiving control data output from the CAN module through CAN communication and outputting the control data through an output module; And
Output module coupling means via the CAN communication, the control logic is changed according to the installed hardware platform using the standardized PLC software CODESYS, and the control data is transmitted to the input / output module coupling means via CAN communication Board,
Wherein the main board is configured such that an LCD module as a display device and a control module for controlling the overall operation of the system are detachably mounted, and the LCD module is mounted according to the size of the expanded hardware.
The ICT-based flexible control system according to claim 1, wherein the input / output module coupling means detaches the hardware module.
The input / output module coupling means includes an input / output unit for interfacing data with the mounting module; A main control unit for controlling the input data of the module mounted through the input / output unit to be transferred to the main board, and transmitting the data transmitted from the main board to the mounting module through the input / output unit; And a CAN communication unit for converting data output from the main control unit into CAN communication data and transmitting the data to the main board and transmitting data received from the main board to the main control unit. system.
The input / output unit may include a digital input / output circuit for inputting / outputting data of a digital hardware module for input / output of digital data; An analog input / output circuit for inputting / outputting a signal of an analog hardware module for input / output of an analog signal; And a temperature input circuit for inputting temperature data to the ICT-based flexible control system.
The ICT-based flexible control system according to claim 4, wherein the temperature input circuit receives a temperature measured by a resistance temperature detector (RTD) and a temperature measured by a thermocouple.
delete The main board includes a CAN communication unit for transmitting and receiving data to and from the input / output module coupling unit via CAN communication; The control logic is changed according to the installed hardware platform using the standardized PLC software CODESYS, the system is controlled based on the data input from the mounted module, and control data is generated and transmitted to the input / output module coupling means Wherein the main control unit comprises a main control unit for controlling the main control unit.

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