KR101896899B1 - glove knitting machine wiht a smart interface system - Google Patents

Abstract

The present invention relates to a glove knitting machine including a smart interface system, capable of making a considerable contribution to improvement in the productivity of a glove factory by generating and managing a variety of information for improving productivity by collecting and processing various production-related data, which are generated during a glove production procedure, through a computer. More specifically, various product-related data are collected from production facilities through bidirectional communication between the production facilities and an information system, production is managed based on information obtained through the processing of the collected data, and an optimal production environment is formed through control over an individual knitting machine or a group of knitting machines, and thus, the present invention is capable of building a smart glove factory based on bidirectional communication with a glove knitting machine which does not have a communication function.

Description

[0001] The present invention relates to a glove knitting machine having a smart interface system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glove knitting machine having a smart interface system, and more particularly, to a glove knitting machine having a smart interface system, which collects and processes various production-related data generated by a glove knitting machine during production of gloves, The present invention relates to a glove knitting machine equipped with a smart interface system capable of greatly contributing to productivity improvement of a glove factory by making it possible to operate the glove knitting machine.

More specifically, it is attached to a glove knitting machine, which is a production facility that does not have a communication function with a computer and an information system, collects various production-related data from a production facility through a bidirectional communication between a glove knitting machine as a production facility and an information system, It is equipped with a smart interface system that enables the establishment of a smart glove factory by implementing systematic and transparent production management based on the information obtained by processing the data, To a glove knitting machine.

Gloves are hand-held objects in the shape of pouches held in the hands for the purpose of protecting, insulating, or decorating the hands.

Such gloves have been used for various purposes as described above. In particular, work gloves are widely used for protecting hands, and they are manufactured using knitting machines for mass production.

There are various technologies related to the glove knitting machine including Patent Documents 1 to 3.

Patent Document 1 discloses a glove knitting machine comprising a carriage, a stitch, a throat drum, a cam, a front and rear knitted fabric, and a thread cutting finish. The glove knitting machine includes a carriage driving section for a carriage, a stitch, a throat drum, a cam, The driving unit, the front needle drum driving unit, the cam driving unit, the front and rear knee driving unit, and the actual cutting finishing driving units are driven to be connected to the respective carry station driving sources, the stitch driving source, the front drum driving source, the cam driving source, ,

Patent Document 2 discloses a knitting machine including a needle bed on which a needle plate provided with a needle is provided and a transfer device for reciprocating a needle-making device provided on the needle bed, wherein the needle-drawing device comprises: A cam plate provided on the front surface of the needle plate to change the needles of the needle plate to a knitting position or a standby position and an actuator installed on the cam plate and operated according to a control signal to select the needles of the needle plate, The needle plate includes a plurality of needles formed of a plurality of members, a plurality of guide plates provided between the needles to support the needles, and a plurality of needle members And a guide bar for guiding the movement and connecting the plurality of guide plates, wherein the plurality of members constituting the needle are arranged on the cam plate A first member to a fourth member each having a projection for moving along a formed path and a third member provided between the second member and the third member so that the third member moves out of the path of the cam plate, And the cam plate forms a different path of each of the plurality of first cam second members forming the path of the first member, and is provided so as to protrude from the cam plate At least one third cam includes a plurality of third cams protruding from the cam plate and provided so as to be capable of being pulled in so that the paths of the plurality of second cams and the third member are selectively formed,

Patent Document 3 discloses a pair of needle beds which are arranged so as to be engaged with jigs at the top and rear of the frame, respectively; A bobbin supplying two strands of fiber yarn and one strand of antistatic yarn to the needle bed, respectively; A tension unit for guiding the supply of the needle bed fiber yarn and the antistatic yarn; A carriage installed on an upper portion of the needle bed to knit a glove knitted with a finger portion, a trunk portion, and an equal interval portion while reciprocating right and left; A combination driving unit installed in the frame and reciprocating the carriage left and right; A control unit for automatically controlling the operation of the knitting driving unit according to an input signal; And an outlet for discharging the knitted gloves to the outside.

There is a technology related to various knitting machines, and Patent Document 4 is a technology for controlling the knitting machine more easily.

Patent Document 4 discloses a knitting machine comprising a stitch, a carriage, a throat drum, a cam group, a knot, a thread cutting finishing and a solenoid, and includes a stitch driving section such as a stitch, a carriage, a throat drum, a cam group, a knot, a thread cutting finishing and a solenoid, And the cutting cutting finishing driving units are connected to and driven by the respective stitch driving sources, the carry driving unit, the forward driving unit, the cam army driving unit, the ground driving unit, the actual cutting unit driving unit, and the actual cutting finishing driving unit , A stitch driving source, a carry driving unit, a tilting drum driving unit, a cam army driving unit, a curtain driving unit, a cutting tongue driving unit, and a cutting cutting finishing driving unit are driven and received by a control unit individually.

Although various techniques have been developed in connection with the glove knitting machine, there has been no technique for simultaneously monitoring and controlling the glove knitting machine.

That is, in order to produce a large amount of gloves, a large number of glove knitting machines are operated at the same time. In order to monitor and control the operation state of a large number of glove knitting machines operating at the same time, .

As to the technology of the glove knitting machine, as described in the patent literature reviewed above, it is mainly about the precision of the number of knitting, the technique of inserting the sophisticated pattern in the glove knitting process, There is no technology developed to effectively utilize the various data generated during the operation of the glove knitting machine.

However, when the data is extracted from the glove knitting machine and information is obtained, it is possible to maintain the proper inventory through real-time analysis of the yarn input and the production amount, thereby reducing the inventory burden on raw materials and promptly stopping the knitting machine It can contribute to the improvement of productivity. In addition, such information can contribute to enhance productivity and rationalization and transparency of management, but the technology for informationization has not yet been developed.

Korean Patent No. 10-0622783 Korean Patent No. 10-0929606 Korean Patent Publication No. 10-2016-0031260 Korean Patent No. 10-0622784

SUMMARY OF THE INVENTION It is an object of the present invention to provide a glove knitting machine having a smart interface system capable of monitoring and managing a plurality of glove editors.

More specifically, the present invention enables a computer to collect and process various production-related data generated in the process of producing gloves by a glove knitting machine, thereby generating and managing various kinds of information capable of improving productivity, To provide systematic and transparent production control, and to enable remote control of production facilities, thereby providing a glove knitting machine equipped with a smart interface system that can be called a smart glove factory construction platform that realizes an optimal production environment. The purpose.

In order to solve the above-mentioned problem, a glove knitting machine equipped with a smart interface system according to the present invention includes a glove knitting machine for knitting a glove under the control of a controller in response to a command input by an operation panel of the glove knitting machine, An interface board installed between the controller and the operation panel for extracting various data and signals generated by the glove knitting machine and transmitting the extracted data and signals to the interface engine or transmitting a control signal to the controller; An interface engine transmitting data extracted by the interface board to a smart server through a network or transmitting a control signal transmitted from a smart server to an interface board; Through the interface board and the interface engine, it is possible to generate information through processing of the production data collected from the knitting machine while connected to the network, perform transparent and systematic production management based on the generated information, And a smart server that is a software system that enables control or set value change for a plurality of grouped knitting machines.

A subsystem that performs information-related functions in the smart server software system is called an informationization engine and a subsystem that performs control-related functions is called a control engine.

The interface board transfers knitting machine production related data extracted from the controller of the knitting machine to the interface engine or transmits a control command received from the interface engine to the controller of the knitting machine.

Directional communication through RS232 (Recommended Standard 232), which is a serial type interface, between the interface board and the interface engine.

The interface engine converts the knitting machine production related data received from the interface board into a form that can be used by the smart server and transmits the data to the intelligent engine of the smart server via the network, Into a control protocol that can be interpreted by the interface board, and transmits the control protocol to the interface board.

The communication from the interface engine to the intelligent engine of the smart server is performed by hypertext transfer protocol (HTTP) based on transmission control protocol / internet protocol (TCP / IP) Communication is performed between the engine and the control engine of the smart server based on a TCP / IP [Socket] based on TCP / IP.

The smart server not only stores and manages production-related data collected from a knitting machine through an information processing engine subsystem, generates information, performs transparent and systematic production management based on the generated information, Real time control and setting changes to individual knitting machines or grouped multiple knitting machines that are connected through a network to achieve optimization of the production environment.

The glove knitting machine equipped with the smart interface system according to the present invention can automatically collect and manage various production-related data generated during the production of the glove by the glove knitting machine and improve the productivity through information generation, It is possible to improve the competitiveness.

In other words, the present invention provides an interface between a glove knitting machine and a computer, thereby solving a problem that can not be fundamentally addressed in the computerization of production management, which is a problem that occurs when there is no interface in the past, It is effective to make a smart glove factory by improving the function of knitting machine by simple connection.

1 is a view showing the construction of a glove knitting machine having a smart interface system according to the present invention
FIG. 2 is a diagram illustrating a channel separation using a thread for knitting machine state monitoring and knitting machine control command transmission in an interface engine of an arm knitting machine having a smart interface system according to the present invention
Fig. 3 is a configuration diagram of an operation panel for displaying most of the knitting machine state data collected on the interface board
FIG. 4 shows an example of a knitting machine state transmission protocol packet reflecting the structure of Table 3
FIG. 5 is a block diagram of a machine thread execution model
Figure 6 shows a packet record type data structure
FIG. 7 illustrates a protocol packet structure verification module
8 is a view showing the key arrangement details of the glove knitting machine operation panel
Fig. 9 is a flow chart of a knitting machine control command execution in an armored knitting machine having a smart interface system

The present invention is capable of various modifications and various embodiments, and specific embodiments will be illustrated in the drawings and described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for like elements in describing each drawing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention automatically collects and manages various production-related data generated during the process of producing gloves by the glove knitting machine, and improves productivity through information generation.

As shown in FIG. 1, a glove knitting machine having a glove knitting machine equipped with a smart interface system according to the present invention is configured such that, by control of the controller 210 according to a command input by the operation panel 220 of the glove knitting machine A glove knitting machine 200 including a glove knitting module 230 for interlocking with an information system through a network and installed between the controller 210 and the operation panel 220 An interface board 110 for extracting various data and signals generated in the glove knitting machine or transmitting a knitting machine control command to the controller 210; An interface engine 120 for transmitting data extracted by the interface board to the smart server 130 connected to the interface board or transmitting a control signal transmitted from the smart server to the interface board 110, ; The interface engine saves the data transmitted through the network in the database, generates information for production management based on the stored data, performs transparent and systematic production management based on the generated information, and controls knitting machine control and setting changes And a smart interface system 100 including a smart server 130, which is a software system to be executed.

The smart server 130 performs control or setting change for a remote knitting machine or a grouped knitting machine group connected via a network with an information processing subsystem 131 for performing information generation and information-based production management And a control engine subsystem 132 for controlling the engine.

The interface board 110 allows the glove knitting machine structured so that the glove knitting machine can not be interlocked with the information system on the network, can be linked with the information system on-line via the network. As shown in FIG. 1, And is connected between the controller 210 of the knitting machine and the operation panel 220 by means of a connector.

The interface board 110 transmits a signal from the operation panel 220 to the controller 210 or from the controller 210 to the operation panel 220 so that the interface board 110 does not merely transmit the signal, And performs an online interface to the knitting machine by performing a function of extracting data usable in the information system or transmitting a knitting machine control command to be delivered from the remote smart server 130 to the controller 210.

By doing so, it will be able to handle the real time online knitting machine status without compromising the circular knitting machine, or it will be able to handle the knitting machine control function in real time online .

The interface engine 120 converts the data received from the interface board 110 into a form that can be used by the smart server, and transmits the data to the smart server 130 through the network.

The interface board 110 can not access the TCP / IP based network because it only configures RS232 as the communication means.

In order to solve the communication problem of the interface board 110, the interface engine 120 is provided.

The interface engine 120 performs bidirectional RS232 [Recommended Standard 232] communication with the interface board in a state of being located between the interface board 110 and the smart server 130, and performs bidirectional RS232 [Recommended Standard 232] .

An example of the interface engine can be implemented using RaspberryPi, which is a general single board computer (SBC).

The interface engine 120 applies the "knitting machine state transfer protocol packet" and the "knitting machine control protocol packet" to ensure error-free exchange in relaying messages between the interface board 110 and the smart server 130 .

The interface engine 120 is installed between the interface board 110 and the smart server 130 as shown in FIG.

As described above, the interface engine 120 transmits a status of the glove knitting machine between the interface board 110 and the smart server 130, or transmits TCP / IP to relay the control command. And RS232. ≪ / RTI > The most basic communication is to monitor the condition of the glove knitting machine, and it is encoded into a Json object to transmit the content of the knitting machine state transmission protocol packet received via the RS232 from the interface board 110 to the smart server 130 And transmits the message to the smart server 130 via a hypertext transfer protocol 131-1 based on a TCP / IP [TCP / IP].

   In order to issue a control command to the knitting machine 200 from the smart server 130, the smart server 130 transmits the control command to the interface engine 120 through a TCP / IP socket 132-1 communication The control key number of the operation panel is transmitted in the form of a character string and the interface engine 120 encodes the knob control protocol packet corresponding to the control key of the operation panel on the interface board 110 and is transmitted through the RS232.

TCP / IP Socket used for transmission of commands for knitting machine control In the process of communication, the interface engine 120 plays the socket server role, the control of the smart server 130 controls the socket client role, The engine 132 is responsible.

The reason why the interface engine 120 plays a role of a socket server is that it always has to wait for reception in order to process knitting machine control commands without missing knitting machine control commands which may occur when the knitting machine 200 and the knitting machine 200 This is because the interface engine 120 capable of immediate communication is more suitable for the socket server role.

Since the smart server 130 is always responsible for collecting and managing data from the knitting machine 200 and generating information while the control of the knitting machine is an ancillary task to be intermittently handled, It is more appropriate to act as a client because it does not need to communicate anymore when the request is complete, the control command is sent, and the purpose is completed.

Communication between the interface engine 120 and the interface board 110 also performs communication via RS232 for both reception and transmission.

The status of communication in the interface engine 120 is shown in Table 1 below.

In the table, communication states occurring between the smart server 130, the interface engine 120, and the interface board 110 are displayed.

As can be seen in Table 1, bidirectional communication is performed between the interface board 110 and the interface engine 120 through the RS232. The interface engine 120 transmits the operation state of the knitting machine through the interface board 110 And uses the knitting machine control protocol packet to transmit the knitting machine control command from the smart server 130 to the interface board 110. [

In addition, the communication channel is separated to cope with knitting machine condition monitoring and knitting machine control occurring between the interface engine 120 and the smart server 130.

That is, it provides a communication channel dedicated to knitting machine status monitoring and a channel dedicated to knitting machine control command transmission. In order to solve the problem that only the RS232 single channel is provided between the interface engine 120 and the interface board 110 despite the separation of the communication channel between the interface engine 120 and the smart server 130, Rather than the isolation of the communication channel through thread separation within a single process.

Figure 2 shows a flow chart for separating channels through thread separation.

As shown in FIG. 2, before performing channel separation using a thread, an RS232 communication port for performing communication with the interface board is opened. In this way, the two channels separated by the thread [thread] After separating the machine thread dedicated to knitting machine status monitoring and the socket thread for transmitting knitting machine control command, two threads are independently processed in parallel while securing RS232 communication port for interface board 110 ) Can be shared by RS232 communication port.

2, the mutex variable is a concurrency control variable for controlling a situation in which a machine thread and a socket thread compete with an RS232 communication port, and a machine thread or a socket thread ] Implements synchronization by checking and accessing the mutex [mutex] variable to access the RS232 communication port. In addition, when the main thread that disconnected the machine thread and the socket thread terminates, the entire process is terminated. To prevent this, the main thread prevents an interruption of the process by turning an infinite loop.

Hereinafter, a process of managing the glove knitting machine state in the glove knitting machine having the smart interface system according to the present invention will be described.

<Knitting machine condition collection>

The interface board 110 analyzes the signals exchanged between the knitting machine controller and the operation panel to extract state data of the knitting machine and transmits the extracted knitting machine state data to the interface engine 120 via RS232 communication .

3 is a configuration diagram of an operation panel that displays most of the knitting machine state data collected from the interface board.

As shown in FIG. 3, the operation panel of the knitting machine has different messages due to the limited operating space and the normal operating status and the error status, respectively.

On the other hand, the knitting machine state data transmitted from the interface board to the interface engine transmits normal operation data and error state data using a single data structure, which is called "knitting machine state transfer protocol packet".

(Error state value '0'), a general error (error state value '1'), a mechanical defect error (error state value '2', and the like) in order to distinguish the error state in the knitting machine state transmission protocol packet. '). And fire occurrence (error status value '3'). On the other hand, Table 2 summarizes the details of the display portion of the knitting machine control panel shown in Fig.

In Table 2, the error indicator summarizes the level and characteristics of the error corresponding to the error status value of the knitting machine status transmission protocol packet corresponding to 'general error'.

The 'general error' shown in the error display section of Table 2 is an error that can be restarted after a worker takes immediate action in the field due to a minor error such as single yarn or drop failure which occasionally occurs during the operation process rather than a mechanical defect. On the other hand, the 'machine error' is an error in which a mechanical defect occurs, and a separate error code is defined in the knitting machine controller, and the error code for the error is output to the lower data area of FIG. A mechanical error is a serious error that requires replacement or repair of the part.

In addition, the fire was developed separately in the process of developing the interface board, and the fire is promptly issued in the event of a fire outside the knitting machine so that the fire can be suppressed early.

The knitting machine state data transmitted from the interface board to the interface engine describes the structure and role of the knitting machine state transfer protocol packet transmitting normal operation data and error state data using a single data structure.

Table 3 below summarizes the items for transferring knitting machine operation status.

Table 3 also shows the amount of data required to display each item, which is necessary to determine the amount of data exchanged between the interface board and the interface engine.

The reason for adding one byte per item in the required number of bytes in Table 3 is that it must contain the space delimiter character (ASCII code 0x20).

Table 3 below shows the structure of the "knitting machine state transmission protocol packet" transmitted to the interface board and interface engine using Table 3.

In Table 4, the start position means the position value at which the corresponding item starts in the " knitting machine state transmission protocol packet ", and it can be confirmed that the "knitting machine state transmission protocol packet"

FIG. 4 is an example of a knitting machine state transmission protocol packet reflecting the structure of Table 3, and Table 5 is an analysis of the contents of the protocol packet illustrated in FIG.

Depending on the operation of the system, the knitting machine state transmission protocol packet as shown in FIG. 4 is sampled at a frequency of about 5 times per second by the interface board and transmitted to the interface engine through RS232 communication.

&Lt; Knitting machine status transmission protocol packet transmission (machine thread) >

The interface engine parses the knitting machine state transfer protocol packet received via RS232 from the interface board, removes the duplicate packet, encodes it as a Json (JavaScript Object Notation) object, places it on the Hitachi [http] send.

The transmission process of the knitting machine state transmission protocol packet is summarized as follows.

⊙ RS232 communication port synchronization lock (mutex variable lock)

⊙ Receive "knitting machine status transfer protocol packet" from RS232 via interface board

⊙ Parset the packet and verify that it conforms to the structure of "knitting machine state transfer protocol packet"

⊙ Unlock RS232 communication port

⊙ Eliminate North-North packets

⊙ Encode to Json object

⊙ Send the encoded Jason object to the smart server by placing it in the Http post method

The first thing to do in this process is to perform synchronization on the RS232 communication port that is responsible for communication with the interface board. The reason for synchronizing to the RS232 communication port is to exclusively use the RS232 communication port shared with the socket thread to handle "knitting machine control protocol packet".

Since the "knitting machine status transfer protocol packet" received from the interface board is transferred in byte units, the byte values assembled in bytes are assembled in reverse, and the currently assembled byte value conforms to the definition of "knitting machine status transfer protocol packet" Is a protocol packet structure verification step.

After the complete protocol packet reception is completed through the structure verification process, the synchronization lock for the RS232 communication port is released to allow the access of the socket thread.

The next step is to step through the process of deduplication, Json object encoding, and sending to the smart server with the http post method, as shown in FIG.

The machine thread execution model of FIG. 5 is initiated by the creation of machine threads in FIG.

In FIG. 5, step 1) is a step of setting a lock on a mutex [variable], which is a synchronization variable between threads before receiving data from the RS232 communication port.

By setting lock [mutex] on mutex variable through step 1, machine thread can secure exclusive access to RS232 communication port while access to RS232 communication port by socket thread is blocked.

If the mutex variable is locked by a socket thread, it is waiting for the socket thread to unlock the mutex variable. The mutex [mutex] variable is locked.

② step is to judge whether the byte value to be received at the initial position of the receive buffer is the data specified by start code [START CORD] in the structure definition of "knitting machine status transfer protocol packet" , It is not stored in the receive buffer until the start code [START CORD] is received, and the jump is made from the RS232 communication port to the data receiving module again with the buffer receiving position set to 0.

5, step 3 of Fig. 5 specifies a function call for verifying whether or not one byte received from the RS232 communication port meets the structure definition of " knitting machine state transfer protocol packet ". If an error occurs in the structure verification process The verification is performed on a byte-by-byte basis using the received byte and the reception buffer position of the received byte in order to return to the normal reception while invalidating the reception until now.

If the verification fails, initialize the receiving buffer and buffer reception location management variables, jump from the RS232 communication port to the data receiving module, and if the verification is successful, the received data is the last data location forming the "knitting machine status transmission protocol packet" If it is not the last position, it increments the buffer position variable by 1 and then jumps to the RS232 communication data receiving module.

5, the lock set in the mutex variable, which is a synchronization variable between threads for the RS232 communication port, is released in a state in which the " knitting machine state transmission protocol packet " . Synchronization of the RS232 communication port through the mutex variable is configured in units of "knitting machine state transfer protocol packet" or "knitting machine control protocol packet", which means that when each thread accesses the RS232 communication port, This is an action to ensure that operations on the port can be performed unaffected by other threads.

5 uses the packet record type shown in Fig. 6 as a part for removing redundant packets.

The packet record structure combining the element types in FIG. 6 is configured to include additional information in exactly the same manner as the items defining the " knitting machine state transmission protocol packet "in Table 4, The current record and the previous record conforming to this structure are very useful for duplicate checking of packets because they can be easily compared with if conditional statements.

As a result of completing the packet duplication check, if it is judged that the previous record and the current record do not overlap with each other, each element constituting the current record is encoded as a Json object, and then, through the curl library [CURL Library] Post method [http post method] to the smart server.

After the duplicate check of the packet or the operation of transmitting the current record encoded by Jason object to the smart server is completed, the current record is replicated to the previous record, and the current record, the packet reception buffer, and the buffer location management variable are initialized The process jumps to step (1) of FIG. 5 to move to a step for receiving a new packet.

The machine thread is in principle forming an infinite loop without an end, which is to configure the machine thread so that the machine thread is always running when the knitting machine is in operation.

&Lt; Packet verification module >

This module verifies whether the data received from the interface board conforms to the structure of the "knitting machine state transmission protocol packet". The module that verifies whether the byte unit data received from the interface board matches the structure of the knitting machine state transmission protocol packet It is a module that verifies whether or not it is.

 The packet validation module is a function to be called at the position of step 3 of FIG. 5, and is called by using the position of the currently received data, the packet buffer storing the received data, and the packet buffer storing the currently received data as parameters.

The packet verification module verifies whether it conforms to the "knitting machine state transfer protocol packet" structure defined in Table 4 based on the transmitted parameters.

TRUE is returned if the result of the verification matches the definition of Table 4, and a false [FALSE] is returned if the verification fails.

The fact that the validation function returns true [TRUE] means that the data received so far does not violate the definition in Table 4. Therefore, if TRUE is returned, the buffer position value is incremented by one and is shown in FIG. 5 so as to jump from the RS232 communication port to the module that receives data.

This process is repeated while receiving a number of bytes conforming to the structure of Table 4.

7 shows a processing flow of the packet verification function.

As shown in FIG. 7, the packet structure verification module checks whether the data value of the received byte corresponds to the definition of Table 4 that defines the structure of the " knitting machine state transmission protocol packet ".

The module first sets the tag value to TRUE, then changes the tag value to FALSE if the validation fails during the validation phase by executing the code for structure validation.

 If all validation procedures have been completed, or if the current validation fails, the tag [tag] value set in the validation process is immediately returned.

In order to perform the structure verification, the first step is to set the start code position (pCount value 0) or the end code position (pCount value 51) as the start code (START_CODE: 0x0d) or the end code (STOP_CODE: 0x0a) (STOP_SYMBOL: 'e') and the end symbol position (pCount value 49). If this condition is violated, the tag [tag] value is changed to false [FALSE].

Next, the packet buffer [packetBuffer] storing the received data is verified whether or not the positions match with the syntax symbols specified in Table 6 below.

Table 6 shows the syntax symbols and locations for the "knitting machine state transfer protocol packet" structure verification.

In FIG. 7, the portion denoted by the lower iteration represents an algorithm for evaluating Table 6.

&Lt; Sewing machine control command transmission (socket thread) >

Knitting machine control is performed by the operator in front of the knitting machine through key operation of the control panel.

The keys of the operation panel are physically set in the respective functions as shown in FIG. 8 and the following Table 7, and the operation for the control is performed in the order according to the key input scenario By operating the keys as shown in FIG.

At this time, each key operation reacts to a single key operation by the knitting machine, and after confirming the corresponding reaction, proceeds to the next key operation sequence. The smart interface system is implemented to fully simulate such control operations.

That is, the smart server implements an operation panel simulator corresponding to each knitting machine and implements the key manipulation from the same viewpoint that the operator operates the key through the operation panel of the knitting machine. same.

① In the control panel simulator called from the control engine subsystem of smart server, when one key is pressed, information about which key is pressed is transmitted to the interface engine via TCP / IP socket communication.

② The interface engine generates "knitting machine control protocol packet" corresponding to the key number received from the control engine subsystem of the smart server and transmits it to the interface board via RS232 communication.

③ The interface board reflects the meaning of the knitting machine control protocol packet and carries out the key operation by transmitting the signal to the knitting machine controller.

④ The interface board constructs "knitting machine state transfer protocol packet" which sampled the state of the controller reflecting the key operation by ③ above and then transmits it to the interface engine via RS232 communication.

⑤ The interface engine transmits the contents of "knitting machine state transfer protocol packet" received via RS232 communication from the interface board to the operation panel simulator of smart server through TCP / IP socket.

⑥ The simulator completes the state of the operation panel simulator perfectly corresponding to the key operation by setting the contents of the operation panel data display part reflecting the contents of the "knitting machine state transfer protocol packet" transmitted.

The above process is shown in Fig.

In Figure 9, the label sections ① ~ ⑥ enclosed in brackets reflect the parts described in paragraphs ① ~ ⑥ above.

9, in the glove knitting machine equipped with the smart interface system, communication is performed through the TCP / IP socket between the smart server and the interface engine, and communication is performed between the interface engine and the interface board by RS232 communication do.

 The module shown in FIG. 9 is a module that locks a mutex variable, which is a synchronization variable between threads, in order to use an RS232 communication port in a socket thread.

If the machine thread is already locked at the time the lock is requested, the machine thread waits at the position until the unlock operation is performed by the machine thread.

When unlocking a machine thread, the socket thread waiting at the location enters the environment for using the RS232 communication port while locking the mutex [mutex] variable.

To use the RS232 communication port, firstly, the "knitting machine control protocol packet" corresponding to the key number of the control panel is transferred to the interface board, and then the status of the key command specified in "knitting machine control protocol packet" is reflected in the knitting machine Quot; Knitting Machine Status Transfer Protocol Packet "

Receiving the "knitting machine state transmission protocol packet" performs almost the same operation as the one described in the preceding machine thread section, and at the point when the packet configuration is completed with the received data, the mutex [mutex] variable To allow the machine thread to use RS232 communication or to allow the socket thread to re-enter the RS232 communication area.

The unlock operation of the mutex variable, which is a synchronization variable between threads, is performed by execution of the module shown in FIG. Unlock the Mutex Variable Unlike the machine thread after unlock operation, the packet encoded as Json object is sent to the smart server through socket.

The reason for sending the packet to the socket without sending it to the Http [http] is to allow the smart server to output the response to the key input on the screen of the knitting machine operation panel simulator running on the smart server. It is also a way to deal with the communication channel of the start loom control command transmission.

The procedure in which the knitting machine control command is performed is described with reference to FIG.

9, the interface engine converts the key number received from the smart server into a knitting machine control protocol packet, and transmits the converted key packet to the interface board through RS232.

Table 8 shows the definitions of the keys transmitted from the smart server to the interface engine for such processing.

When the key values defined in Table 8 are transmitted from the smart server through TCP / IP socket communication, the interface engine must generate a "knitting machine control protocol packet" corresponding to the corresponding key value. The knitting machine control protocol packet contains the key values defined in Table 8 and includes additional requirements.

Table 9 below is a table defining the "knitting machine control protocol packet" structure that specifies the items constituting the knitting machine control protocol packet and the range of values that the items can have.

In Table 9, the data request controls the transmission of the "knitting machine status transmission protocol packet". When the value is set to "0", the interface board specifies not to send the knitting machine status transmission protocol packet to the interface engine , '1', and '2', it is specified that the knitting machine state transmission protocol packet should be continuously transmitted at a frequency of about 5 times per second.

The data initialization item specifies the initialization of the production amount and the operation time maintained by the interface board.

The most important items in Table 9 are the 10-digit button and 1-digit button. This item specifies that the 10th digit of the key number in Table 8 is set to the 10-digit button, Item to be set in the item.

The reason for dividing the key value into 10 digits and 1 digit is because all the operations of the interface board perform character operations in byte units. To maintain the processing consistency of the interface board, the "knitting machine control protocol packet" Because it treats them as byte-unit characters.

Table 10 below is a table showing the operation panel key values defined in Table 8 in accordance with the "knitting machine control protocol packet" structure shown in Table 9. FIG.

In Table 10, in the case of the button operation status item of the knitting machine control protocol packet, all of them are set to '1' because it is necessary to operate the designated key through the 10-digit button portion and 1-digit button portion. It is designated as continuous transmission because it is necessary to check the state of the knitting machine due to the action and to continuously monitor the condition.

When a key value is transmitted from the smart server for knitting machine control or operation, the knitting machine control protocol packet of the corresponding case in Table 10 corresponding to the transmitted key value is transmitted to the interface board to control the knitting machine.

This enables a glove knitting machine with a smart interface system to work as a complete platform for building a smart factory solution for glove knitting machines as well as enabling complete two-way communication.

&Lt; Performing knitting machine batch control >

Knitting machine batch control is a command to batch change the settings of several knitting machines in smart server.

The smart server receives and decodes the data encoded by the Jason [Json] object, and transmits the sequence of the "knitting machine control protocol packet" shown in Table 10 to the interface board in accordance with the set sequence by reflecting each parameter value, Apply the value set by the server to the knitting machine.

The batch control command transmitted from the smart server does not send the sequence for executing the control command but transmits only the parameter values for performing the sequence, and the configuration of the sequence is performed by the interface engine.

Since sequence execution is required to control the sequence in response to the status of the data display on the knitting machine control panel, the smart server only transmits the parameter values for the item to be set, and the interface engine checks the display unit status of the knitting machine control panel So as to reflect the set values.

The control sequence for reflecting the set values transmitted from the smart server means a procedure for transmitting the "knitting machine control protocol packets" shown in Table 10 to the interface board, and the order for reflecting the sequence is implemented through the batch control module Let's decide through one algorithm.

<Smart Server Software System>

The smart server software system stores and manages the knitting machine data collected through the interface board and the interface engine to generate information for productivity improvement, performs information-based production management, Of the knitting machine, or a batch control of a plurality of grouped knitting machines, thereby playing a key role in realizing a smart glove factory.

In order to achieve the above object, the smart server system is composed of an information engine for realizing knitting machine data collection, storage management, information generation and information-based production management functions, and a control engine for performing knitting machine control remotely.

Table 11 below summarizes the functions of such a smart server system in a lump.

division Function name Explanation tube
Lee login Screen to allow login using user ID and password User registration Enables new users to register or view / modify existing users Account registration Enables the registration of new providers or the viewing and modification of existing providers. Worker Management Allows to register, view, and modify workers who are in charge of knitting machine management at the factory site, not program users Equipment registration Register a new knitting machine or view or modify knitting machines already registered Knitting machine inspection To register, modify, and inquire about knitting machine management such as repair of knitting machine registered and exchange of parts Knitting machine inspection
Acknowledgment Allows you to complete the check by performing a check approval for the check set by the knitting machine check program
Registering Permissions Grant specific users permissions to certain functions of the system tablet
Bo
anger
yen
camp Work Order
Enrollment - Register a new work order. Items to be produced and quantities to be produced through the operation Knitting machine
Operational status The knitting machine selected from the knitting machine list is simulated and the current knitting machine operation status is displayed on the screen where the knitting machine control panel is simulated. network
check Check whether all knitting machines participating in group by knitting machine groups are connected to the network Knitting Message
Error aggregation Table and chart shows the frequency of occurrence of each error cause defined by the system by the knitting machine. Knitting Message
Operating rate Displays the utilization rate based on the actual working time for a given period by knitting machine Number of errors per work order The total number of errors occurred in the 'knitting error counting' for all knitting machines participating in the work instruction Operating rate by work order The sum of the individual utilization rates of all knitting machines participating in the work instruction My
uh
yen
camp Remote control Send a single command, such as' '', to several selected knitters using the checkboxes Command sequence Smart Server Control Engine registers / queries / modifies command combination to send to knitting machine Command shortcut Control command and knitting machine are connected and operated so that the control command registered in command sequence can be sent to several knitting machines in a lump.

<Table 11 Smart Server System Function Summary

In Table 11, the management part is a part providing the environment for the operation of the smart knitting factory, and includes a user having authority to use the system, a worker who operates the knitting machine at the production site, and a registration / search / It provides not only the correction function but also the repair history corresponding to the failure of the knitting machine. In addition, it provides an optimized environment for safe and reliable operation of a smart glove factory by enhancing security of system operation through privilege management that allows each function to be assigned to a user.

In Table 11, the information engine operates the database to store and manage the data collected from the knitting machine, and not only generates various information based on the stored and managed data, By performing transparent and systematic production management through work instructions, information-based inventory management of raw materials and production products is possible, and it is possible to analyze the cause of deteriorating productivity, thereby contributing to productivity improvement. In order to collect the production data from the glove knitting machine, the intelligent engine of this smart server system decodes the Jason [Json] object transmitted through the TCP / IP based http protocol from the interface engine, extracts necessary data, And structured to generate necessary information based on the data stored in the database.

The control engine in Table 11 is a subsystem that constitutes a smart server, allowing the smart server to perform control on a group of remote knitting machines or grouped knitting machines. The control engine sub-system of the smart server sends a control command to the interface engine through Socket communication to deliver control commands to the knitting machine. Then, the interface engine sends a control command to the interface board and transmits the knitting machine state data, which is the reflection result of the control command received from the interface board, to the smart server control engine subsystem through the socket communication.

100: Glove Knitting Machine Smart Interface System
110: interface board 120: interface engine 130: smart server
131: Information processing engine 132: Control engine
131-1: http communication between smart server information engine and interface engine
132-1: Socket communication between smart server control engine and interface engine
200: glove knitting machine
210: controller 220: operation panel 230: glove knitting module

Claims (7)

The glove knitting machine 200 equipped with the glove knitting module 230 for knitting the glove under the control of the controller 210 according to the command inputted by the operation panel 220 can be interlinked with the information system on- In the glove knitting machine 100 having a smart interface system
The various data and signals generated by the glove knitting machine installed between the controller 210 and the operation panel 220 are extracted and transmitted to the interface engine 120 through the RS 232 or transmitted from the remote smart server 130 An interface board (110) receiving the loom control command via the RS232 at the interface engine (120) and then transmitting the loom control command to the controller (210);
An interface engine 120 for relaying data or control commands using a TCP / IP-based communication protocol and RS232 between the interface board and a smart server 130 connected on-line on a network;
An information subsystem 131 for storing production-related data of the glove knitting machine received from the interface engine 120 in a database, generating various information related to production based on the stored data, and performing information-based production management, And a smart engine system (130) having a control engine subsystem (132) for issuing control commands for individual knitting machines or grouped knitting machine groups and for confirming the reflection results of control commands. And a glove knitting machine. The method according to claim 1,
Wherein the interface board (110) transmits the knitting machine control command transmitted from the control engine subsystem (132) of the smart server to the controller (210) constituting the knitting machine. The method according to claim 1,
Wherein the interface board (110) encodes the production-related data collected from the controller (210) into a protocol packet and transmits it to the interface engine (120). The method according to claim 1,
The interface engine 120 converts the protocol packet data received from the interface board 110 into a form that can be used by the information processing engine 131 subsystem of the smart server 130 and transmits the TCP / To the information system engine 131 subsystem of the smart server via the network interface 131-1. The method according to claim 1,
The interface engine 120 transmits a knitting machine control command transmitted from the control engine subsystem 132 of the smart server 130 via the socket communication 132-1 to the interface board 110 via the RS232 Wherein said smart interface system comprises: The method according to claim 1,
The interface engine 120 receives from the interface board 110 a " knitting machine state transfer protocol packet " reflecting the state of the knitting machine in which the control command of claim 5 is reflected, To the control engine (132) of the smart server through the communication (132-1).
The method according to claim 1,
The smart server 130 system includes an information engine 131 subsystem for storing and managing data collected through the interface board 110 and the interface engine 120 and for performing information based production management, And a control engine (132) subsystem for receiving control commands for grouped knitting machine groups and confirming whether they are reflected.

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