KR101220654B1 - system and method for measuring surface rough - Google Patents

Abstract

The present invention relates to a surface roughness measuring system and method, and specifically, the surface roughness measuring system of the present invention is installed with a distance difference, and includes a front and rear surface roughness measuring instrument for measuring the surface roughness of the front and rear surfaces of a coated steel sheet; A weld detector which detects a weld of the continuously welded coil and transmits a weld detection signal; And a surface roughness measurement management apparatus that detects a start position, which is a point in time at which the weldment reaches the surface roughness measuring instrument, using the operation information and the welding portion detection signal.

Description

System and method for measuring surface rough}

The present invention relates to a steel process, and more particularly, to a surface roughness measuring system and method for surface roughness measuring devices having a distance difference in the steel process.

Conventionally, in measuring the surface roughness of the coil with a surface roughness gauge in the steel process, it was simply measured on one side.

In addition, in the case of the plating line, the coil is continuously welded and passed. In the conventional surface roughness gauge of the coil, when the welded portion passes the surface roughness meter, the time point is not extracted accurately. In addition, the prior art can measure the surface roughness in the surface roughness measuring instrument in the field, this measurement may cause errors depending on the environment of the work site, there is a problem that is difficult to measure. To do this, a software program structure based on coil distance is required to manage the measurement of surface roughness more accurately and conveniently.

In addition, conventionally, when measuring the surface roughness at the same time online at the front and back with a distance difference, each measuring instrument accurately extracts the time when the welding zone to notify the start of the coil passes by measuring the total surface roughness of the front and back There was no structure, so it was impossible to measure the surface roughness of the electric coil. This is because there is a limitation in the hardware implementation because it exchanges information between the front and rear measuring instruments, and according to the surface roughness measuring instrument on the front and back of the coil installed with the distance difference to track the beginning of the coil There is a need for the development of software programs with optimized algorithms.

Furthermore, in the conventional art, since one side of the coil is simply measured and fixed, the surface roughness measurement is partially performed, and the continuous welded coil is cut into several coil products in one coil before shipment. There is no way to control the surface roughness of the product after it has been cut.

In order to solve the above problems, the present invention is to provide a surface roughness measurement system and method for managing the surface roughness measurement according to the coil distance through software programs.

In addition, the present invention, when the surface roughness measuring instruments for measuring the surface roughness of the front and rear surfaces of the coated steel sheet (coil) is provided with a distance difference, by tracking the weld between the coils to determine the coil starting position according to the operation information (speed) It is an object of the present invention to provide a surface roughness measurement system and method for detecting and tracking front and back coil distances.

In addition, the present invention, when the surface roughness measuring instruments for measuring the surface roughness of the front and rear surfaces of the coated steel sheet (coil) are installed with a distance difference, the surface by tracking the back and front distance tracking share cut tracker according to the coil distance It is intended to provide a surface roughness measurement system and method for deriving a roughness measurement.

Surface roughness measuring system according to an embodiment of the present invention for solving the above problems is installed with a distance difference, the front and back surface roughness measuring instrument for measuring the surface roughness of the front and rear surfaces of the coated steel sheet, welded portion of the continuous welded coil A welder detector which detects and transmits a weld detection signal, and cuts the coil into a sub-product coil, and uses a shear cut coil cutter and operation information to transmit a cutting signal and the weld detection signal to the surface roughness measuring instrument. And a surface roughness measurement management device that detects a start position that is a time point at which is reached, and calculates a cutting distance using the weld detection signal, the cutting signal, and the operation information.

The surface roughness measurement management apparatus detects a start position of the coil by using the operation information when receiving the weld detection signal, and receives a start signal from the coil tracking unit and the coil tracking unit that tracks the back and front coil distances. And the cutting signal is calculated using the tracked back and front coil distances, respectively, and the respective surface roughness values and averages are calculated according to the calculated back and front cutting distances. It includes a share cut tracking part.

When the coil tracking unit receives the weld detection signal, the coil tracking unit detects a time point at which the start of the weld passes the back surface and the front surface roughness measuring device as a coil start position, and transmits a start signal for driving programs necessary for deriving the surface roughness value. A coil start position tracker, a back distance tracker that drives a program according to the start signal and tracks a back coil distance according to the operation speed, and a front side that tracks a front coil distance according to the operation speed by driving a program according to the start signal. Includes a street tracker.

The front and rear surface roughness measuring instruments are attached to the working side, the drive side and the center of the front and rear surfaces according to the coil width to control the position of the plurality of sensors and the plurality of sensors sensing the surface of the coil, And an embedded digital signal processing (DSP) device for transmitting sensor circular measurement data according to a signal sensed by a sensor to the surface roughness measurement management device.

The surface roughness measurement management apparatus receives sensory data of the plurality of sensors and controls a program resource shared between a sensor controller for controlling the positions of the plurality of sensors and programs necessary for managing surface roughness measurement values and averages. The apparatus further includes a shared resource management unit for managing and operating the received sensing data and the operation information while storing.

The surface roughness measurement management apparatus may include a screen operating unit which displays the derived surface roughness measurement value on a screen for each position of each sensor according to a coil distance, and a mathematical model parameter setting file and surface used to derive the surface roughness measurement value. The apparatus may further include a surface roughness model manager configured to manage roughness information and periodically check contents of the mathematical model variable setting file.

The surface roughness measuring system is installed at the work site to transmit operation information of the site to the surface roughness measurement management apparatus, and receives the derived surface roughness value and the average value and displays them on the operator's screen. ) Further comprises a device.

The surface roughness measuring method according to an embodiment of the present invention for solving the above problems, when receiving a weld detection signal detecting a weld of the coil, the operation information stored in the coil start position at the time when the weld passes the surface roughness measuring instrument Detecting using; tracking the back and front distances of the coil;

Performing back and front distance tracking share cut tracking according to the tracked back and front distances; when the coil is cut and receives a cut signal, calculating a back and front cut distances; and calculating the calculated back and front distances, respectively. Deriving each surface roughness measurement value in accordance with a cutting distance of the.

Obtaining the average of the derived surface roughness values and transmitting the derived surface roughness values and the average so as to be confirmed at the shop floor.

The surface roughness values are derived using circular sensor data received and stored from the sensors.

Since the present invention can derive and manage surface roughness measurement values according to the back and front coil distances, it is possible to provide accurate surface roughness measurement values to the operation site, and to carry out the process more accurately and conveniently to ship quality products. It can work.

In addition, the present invention can detect the welding part that indicates the start of the continuous coil when the coil is continuously welded, and the cutting distance can be calculated more precisely when the coil is cut into several sub-product coils before shipping the product. The surface roughness measurement of the coil can be derived.

In addition, the present invention can change the position of the working side of the front and back surface roughness gauge and the sensors attached to the drive side according to the coil width change through the sensor position motor control, thereby obtaining more accurate sensing results (circular sensor data). It can be effective.

1 is a view showing the structure of a surface roughness measurement management system according to an embodiment of the present invention,
2 is a view showing the structure of a surface roughness measurement management apparatus in the surface roughness measurement management system according to an embodiment of the present invention;
3 illustrates a method for surface roughness measurement management in a surface roughness measurement management system according to an embodiment of the present invention;
4 is a view showing a process for coil start position detection, coil distance tracking and share cut tracking operation in the surface roughness measurement management apparatus of the surface roughness measurement management system according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating an average of front and back surface roughness values displayed on a screen operating unit according to an exemplary embodiment of the present invention. FIG.
6 is a view showing a front surface roughness value displayed on the screen operating unit according to an embodiment of the present invention;
7 is a diagram illustrating a back surface roughness value displayed on the screen operating unit according to an exemplary embodiment of the present invention.
8 is a schematic view showing the configuration of a surface roughness measurement system according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description and the accompanying drawings, detailed description of well-known functions or constructions that may obscure the subject matter of the present invention will be omitted. In addition, it should be noted that like elements are denoted by the same reference numerals as much as possible throughout the drawings.

Next, the structure of the surface roughness measuring system for on-line surface roughness measuring measuring devices having a distance difference in the steel process will be described in detail with reference to the accompanying drawings. Here, the surface roughness measuring instruments according to the present invention are installed with a difference in distance from the plating line, one surface roughness measuring instrument measures the front surface roughness according to the coil distance, and the other surface roughness measuring instrument is the back surface roughness measuring coil distance Measure according to. In the embodiment of the present invention, the distance difference between the welded part (welding part) and the back surface roughness measuring instrument is 100 m, and the distance difference between the welding part and the front surface roughness measuring instrument can be described with an example of 125 m.

1 is a view showing the structure of a surface roughness measurement management system according to an embodiment of the present invention, Figure 2 is a view showing the structure of a surface roughness measurement management apparatus in a surface roughness measurement management system according to an embodiment of the present invention. Drawing.

Referring to FIG. 1, the surface roughness measurement management system includes a weld detector 10, a shear cut coil cutter 20, a supervisory control computer (SCC) device 30, a plurality of sensors 40, and embedded digital signal processing (Digital). Signal processing (hereinafter referred to as DSP) device 50 and the surface roughness measurement management device 100, which is a software device for online surface roughness measuring devices (not shown) in conjunction with them, can be configured.

The weld detector 10 detects the welded portion and transmits the detected signal to the surface roughness measurement management apparatus 100 when the welded portions of the continuous coils pass the back and front surface roughness measuring instruments, respectively.

The share cut coil cutter 20 cuts the continuous coil into sub-product coils according to the coil distance before shipment of the product, and transmits the cut signal to the surface roughness measurement management apparatus 100.

The SCC device 30 collects the operation information at the operation site of the steel process and transmits the collected operation information to the surface roughness measurement management apparatus 100, and the surface roughness measurement value derived from the surface roughness measurement management apparatus 100 and The average value of the surface roughness measurements is received and displayed on an SCC computer screen for operators to check.

 The plurality of sensors 40 are three measuring laser sensors attached to the working side, the center portion, and the drive side, respectively, at the front and back sides of the coil to measure the surface roughness.

The embedded DSP device 50 controls the positions of the sensors and transmits sensor circular measurement data according to the signals detected from the sensors to the surface roughness measurement management apparatus 100.

Referring to FIG. 2, the surface roughness measurement management apparatus 100 includes a coil tracking unit 110, an SCC operation unit 120, a share cut tracking unit 130, a sensor control unit 140, and a shared resource operation unit 150. The surface roughness model operating unit 160 and the screen operating unit 170 may be configured to be included.

The coil tracking unit 110 detects the start of the coils for the surface roughness measuring instruments on the front and rear surfaces through the coil tracking operation program, and performs the coil distance tracking. More specifically, the coil tracking unit 110 receives a weld detection signal that detects a welded portion when the continuous coil is welded through the weld detector 10 and passes through the weld start position tracker (a coil start position tracker from the time when the weld signal is received). Start Position Traker) 111 to operate. This is because there is a distance between the weld detector 10 and the surface roughness meters on the front / rear side. The weld detection signal is received via modbus communication between the weld detector and the front / back surface roughness meters.

As shown in FIG. 2, the coil tracking unit 110 may include a coil start position tracker 111, a rear distance tracker 112, and a front distance tracker 113.

The coil starting position tracker 111 operates at the point of time when the weld detection signal is received through the coil starting position tracker process to track the coil starting position. In addition, the coil start position tracker 111 detects a time point at which the welding part indicating the start point of the coil passes through the back surface roughness meter and transmits a start signal to the back distance tracker 112, and a time point at which the weld part passes the front surface roughness meter. Detects the signal and transmits a start signal to the front distance tracker 112.

In addition, the coil start position tracker 111 enters the sleep mode after the front distance tracker process operates, waits for the next weld detection signal, and upon receiving the weld detection signal again, the coil start position tracker process sleeps. It wakes up from sleep mode and goes to wake up mode. At this time, the coil start position tracker 111 transmits an initialization signal to the rear distance tracker 112 and the front distance tracker 113.

The back distance tracker 112 operates a back distance tracking process to detect a time when the back surface roughness measurement part passes by using a distance difference between the weld detector 10 and the back surface roughness meter, and operates speed. According to the distance difference, the back surface roughness according to the coil distance of the back surface can be measured.

The Front Distance Tracker 113 operates the front distance tracking process to detect the point of time passing by the front surface roughness meter using the installed distance difference between the weld detector 10 and the front surface roughness meter, Therefore, when the distance difference is passed, the front surface roughness can be measured according to the front coil distance.

When the back distance tracker 112 and the front distance tracker 113 receive an initialization signal from the coil start position tracker 111, when the welding part indicating the start of the coil passes the surface roughness measuring position of each front and back surface, The coil distance can be accurately measured again by initializing the distance information being recorded. This is because the front distance tracker process and the back distance tracker process are operating, respectively, rather than rerunning the back distance tracker process and the front distance tracker process.

SCC operation unit 120 receives the operation information of the site through the SCC computer installed on the site through the SCC operation program, and includes a program routine that periodically checks the communication status whether the SCC is alive or unstable, If disconnected, it tries to reconnect. The received operation information is transmitted to and stored in the shared resource management unit 150. In addition, when the continuous coil is cut into sub coils before the product is shipped, the SCC operating unit 120 receives a signal at the time of cutting and transmits the signal to the share cut tracking unit 130 to obtain surface roughness values according to the cut coil product. Manage it.

The shear cut tracking unit 130 determines the cut portion of the coil through the SCC share cut tracking operation program, obtains the surface roughness value according to the coil distance, and calculates an average thereof so that operators can know the SCC device. Transfer to 30.

 To this end, the share cut tracking unit 130 may include a rear distance share cut tracker 131 and a front distance share cut tracker 132 as shown in FIG. 2. Here, the SCC share cut tracking operation program is composed of a coil back distance tracking share cut tracker process and a coil front distance tracking share cut tracker process, and each processor is a back side distance share cut tracker 131 and a front distance share cut tracker 132, respectively. Is run on

The back distance share track tracker 131 operates the back distance tracking share cut tracker process of the SCC share cut tracking operation program, and determines which part of the coil is cut after passing the back surface roughness measuring instrument, and before shipment. The surface roughness value from the start point to the cut portion or the cut portions is determined according to the coil distance, and the average of the obtained surface roughness values is obtained.

The front distance share cut tracker 132 operates the front distance tracking share cut tracker process of the SCC share cut tracking operation program to determine where the coil is cut before the product is shipped, and the distance after cutting The surface roughness value is calculated, and the average of the obtained surface roughness values is obtained.

When the rear distance share tracker 131 and the front distance share track tracker 132 receive the distance initialization signal from the coil start position tracker 111 after the distance is initialized at each of the rear and front surface roughness meters, When measuring the surface roughness to read the coil number from the shared resource management unit 150 to match the coil number according to the continuous coil change to enable convenient information management.

The shared resource manager 150 manages the coil number received from the SCC manager 120, and stores shared program resources among programs for operating the front and back surface roughness measuring instruments. It manages and stores shared resource data when it needs data to exchange between them.

The sensor controller 140 is operated by DSP operation and control programs for front and rear surfaces, and receives sensor circular measurement data (RAW DATA) of surface roughness values according to a coil distance. That is, the sensor controller 140 receives sensor circular measurement data for calculating the surface roughness value from the embedded DSP devices 50 connected to the surface roughness measuring sensors 40 on the front and rear surfaces, respectively, through TCP / IP communication. The received circular measurement data is stored in a file according to the distance and the position of the measured sensors. In addition, the sensor controller 140 transmits instructions for controlling the data transmission cycle and the data transmission amount of each embedded DSP device 50 to the embedded DSP devices 50 through TCP / IP communication to measure the operation. Adjust the parameters to achieve optimization. To this end, the sensor controller 140 may include a backside embedded operation and control program interworking with the embedded DSP device 51 for the backside measurement sensor, a sensor position motor control program interfacing with the sensor embedded position control device 52, and a front side measurement sensor. It includes a front embedded DSP operation and control program that works with the embedded DSP device 53 for.

Accordingly, the sensor control unit 140 adjusts the positions of the front and rear working side and the sensors attached to the drive side according to the width of the coil according to the width change of the steel plate through the sensor position motor control program, respectively. It is responsible for adjusting the position of four installed sensors. The position adjustment of the sensor is changed here as the welded part of the coil passes through the surface roughness meters installed on the front and back sides.

In addition, since the sensor controller 140 previously stores the coil width information received from the SCC manager 120 in the shared resource manager 150, a point in time at which the shared resource manager 150 receives the related information and passes the related information. To be changed. In addition, the sensor controller 140 may set the measurement position, that is, how far inside the coil width / 2 distance is to be measured through the screen operation program.

The surface roughness model operating unit 160 uses the sensor circular measurement data received from the sensor controller 140 through the surface roughness model operating program, and according to the coil distance, the working side, the center portion, It extracts the surface roughness value of the drive side and stores the surface roughness information through a file or a database. In addition, the surface roughness model operating unit 160 may be used to extract surface roughness values by reading the surface roughness model operating program, including an mathematical model setting file for storing mathematical model parameter variables, and periodically extracting the surface roughness value. You can reload the equation model parameter variables during program execution by checking for changes.

The screen operating unit 170 displays surface roughness values measured on the front and rear surfaces in real time through a screen operating program on the screen for each sensor position according to the coil distance, and configures surface roughness measuring instruments on the front and rear surfaces. It controls the status of the programs, sets the operation method, and displays the status.

Next, a method for surface roughness measurement management for online surface roughness measuring instruments in the surface roughness measurement management system having the structure as described above will be described in detail with reference to the accompanying drawings.

3 is a diagram illustrating a method for surface roughness measurement management in a surface roughness measurement management system according to an embodiment of the present invention.

When the surface roughness measurement management apparatus 100 receives the weld detection signal from the weld detector 10 in operation 201, the surface roughness measurement management apparatus 100 executes programs of the coil tracking unit 110 to detect the coil start position in operation 202.

In operation 203, the surface roughness measurement management apparatus 100 executes the back / front distance tracker processor of the coil tracking unit 110 to perform back / front distance tracking.

In step 204, the surface roughness measurement management apparatus 100 receives an operation signal from the coil tracking unit 110 when the welded portion of the continuous coil passes through the back surface roughness measuring instrument, and tracks the back surface of the coil in the SCC share cut tracking operation program. Cut Tracker Process and Coil Front Distance Tracking When the share cut tracker process is executed, share cut tracking is performed according to back / front distance tracking. That is, the surface roughness measurement management apparatus 100 tracks and accumulates the distance of how much the coil has passed the corresponding position since the processor operation.

During the shear cut tracking, the surface roughness measurement management apparatus 100 checks whether the coil is cut to receive the cut signal from the shear cut coil transmitter 20 in order to release the coil. As a result of the check, if the cut signal is not received, the cut signal is continuously waited to be received. If the cut signal is received, the surface roughness measurement management apparatus 100 calculates the cut distance in step 206. Specifically, the surface roughness measurement management apparatus 100 obtains the difference in the operating distance between the share cut coil cutter 20 and the back / surface surface roughness measuring instrument at the accumulated distance, so that the coil may be shipped at any point at the start of welding. Take care of cutting.

Subsequently, in step 207, the surface roughness measurement management apparatus 100 obtains a surface roughness value of the product, obtains an average of the surface roughness values obtained in step 208, and allows the operators to check the average surface roughness value. To send.

This method of surface roughness measurement management method will be described in more detail with respect to the process according to the coil start detection, coil distance tracking operation and share cut tracking operation.

4 is a diagram illustrating a process for detecting a coil start position, coil distance tracking, and share cut tracking in a surface roughness measurement management apparatus of a surface roughness measurement management system according to an exemplary embodiment of the present invention.

Referring to FIG. 4, when the coil start position tracker 111 of the coil tracking unit 110 receives the weld detection signal in step 301, the coil start position tracker 111 is activated in step 302 to detect the coil start position of the weld unit, and then switch to the slim mode. . In step 303, the coil start position tracker 111 simultaneously transmits a start signal to the rear distance tracker 112 and the front distance tracker 113. Accordingly, the back and front distance trackers 112 and 113 track the coil distance, respectively.

In step 304, the coil start position tracker 111 transmits an operation signal for operating the rear and front distance share cut trackers 131 and 132 to the share cut tracking unit 130, respectively. Accordingly, the share cut tracking unit 130 executes the processors of the rear and front distance share cut trackers 131 and 132 to perform share cut tracking.

When the SCC operating unit 120 receives a cutting signal from the share cut coil cutter 20 in step 305, the SCC operating unit 120 transmits the cut signal and the coil product number received in step 306 to the share cut tracking operating unit 130. Accordingly, the share cut tracking operating unit 130 executes the processes of the back distance share cut tracker 131 and the front distance share cut tracker 132, respectively.

In step 307, the share cut tracking operator 130 calculates the back and front cut distances from the back distance share cut tracker 131 and the front distance share cut tracker 132, respectively, and derives the surface roughness values according to the distances. . In step 308, the share cut tracking operation unit 130 tracks and accumulates the distance again from the point of time when the cut distance is initialized or continuously cut in the rear distance share track tracker 131 and the front distance share cut tracker 132, respectively. Record as distance value.

In step 309, the share cut tracking operator 130 transmits the surface roughness value derived to the SCC operator 120. Accordingly, the SCC operating unit 120 transmits the transmitted surface roughness value to the SCC device 30.

Thereafter, in step 310, when the coil start position tracker 111 of the coil tracking unit 110 receives the weld detection signal from the weld detector 10 again, the coil start position tracker 111 switches to the break mode in step 311 to detect the coil start position. At this time, the front distance tracker and the back distance tracker process are not re-executed, but the front distance tracker process and the back distance tracker process are operated, respectively, so that the distance information currently being recorded by the respective back and front distance trackers 112 and 113. When the welding part to indicate the start of the coil passes the surface roughness measuring position of each front and back, it is initialized so that the coil distance can be accurately measured again. Accordingly, in step 312, the coil start position tracker 111 transmits the back accumulation distance initialization signal to the back and front distance trackers 112 and 113, respectively.

In step 313, the coil start position tracker 111 transmits a distance initialization signal to the share cut tracking unit 130. Accordingly, the share cut tracking unit 130 executes the processes of the back distance and the front distance share cut trackers 131 and 132 to perform distance initialization.

When the cut signal is received again by the SCC operator 120 in step 314, the coil product number is transmitted together with the cut signal received by the share cut tracking operator 130 in step 315. Accordingly, in step 316, the share cut tracking operation unit 130 calculates a current cut distance from the time point at which the existing cut signal is received from the back coil in the back cut track tracker 131, and derives a surface roughness value. At this time, the front distance share cut tracker 132 also calculates the cutting distance, derives the surface roughness value, and calculates the average roughness value, similarly to the back distance share cut tracker 131. The surface roughness values and average values of the back and front surfaces thus obtained are stored and managed in the shared resource manager 150 and displayed on the screen operator 170 as illustrated in FIGS. 5 to 7. 5 shows an average value of front and back surface roughness values displayed on the screen operating unit 170, FIG. 6 shows a front surface roughness value displayed on the screen operating unit 170, and FIG. 7 shows a back surface roughness. Indicates a value.

In step 317, the share cut tracking operator 130 transmits the derived surface roughness value and the average roughness value to the SCC operator 120, and accordingly, the SCC operator 120 transmits the transmitted surface roughness value and the average roughness value. Send to the SCC device 30 so that operators can check.

Hereinafter, a surface roughness measurement system to be constructed by applying the surface roughness measurement management system or method described above will be described.

8 is a configuration diagram schematically showing the configuration of the surface roughness measurement system according to an embodiment of the present invention.

Referring to FIG. 8, the surface roughness measuring system of the present invention may include a front and back surface roughness measuring instrument, a weld detector, a shear cut coil cutter (not shown), and a surface roughness measurement management device (not shown). It may be configured to further include an SCC device (not shown).

The front and rear surface roughness measuring instruments are installed with a distance difference, and can measure the surface roughness of the front and rear surfaces of the coated steel sheet. To this end, the front and rear surface roughness measuring instruments are attached to the working side, the drive side, and the center of the front and rear surfaces according to the coil width to control the position of the plurality of sensors and the plurality of sensors sensing the surface of the coil, It may include an embedded digital signal processing (DSP) device for transmitting the sensor prototype measurement data according to the signals sensed from a plurality of sensors to the tracking device. In other words, the front and back surface roughness measuring instruments can measure the surface roughness of both the front and the back of the coil unlike before, and the surface roughness can be measured at the working side, the drive side, and the center for more accurate surface roughness measurement. Do.

Welding part detector The welding part of the continuously welded coil can be detected, and a welding part detection signal can be transmitted. The detected weld can be a guide to determine the starting position of the coil.

The share cut coil cutter may cut the coil into sub-product coils and transmit a cut signal. The cut signal can be used to estimate the length of the sub product coil.

The surface roughness measurement management apparatus may detect a start position at which the welding part arrives at the surface roughness measuring instrument by using the welding part detection signal and operation information, and may use the welding part detection signal, the cutting signal and operation information. The cutting distance can be calculated. The operation information may include the operation speed.

The surface roughness measurement management apparatus extracts a time point at which the weld reaches each of the front and back detectors using the distance information and the operation speed information from the time of receiving the weld detection signal to the weld detector and the front and back detectors, respectively. Can be. In addition, when the surface roughness measurement management apparatus receives the cutting signal, the surface roughness measuring management apparatus may calculate the cutting distance of the coil using up to the position information of the share cut coil cutter.

That is, by using the surface roughness measurement management apparatus, it is possible to synchronize and manage the surface roughness measurement values of the front and rear surfaces measured in real time despite the distance difference.

In addition, the surface roughness measurement management apparatus may include a coil tracking unit and a share cut tracking unit.

When the coil tracking unit receives the detection signal of the welding unit of the coil, the coil tracking unit detects the start position of the coil by using the operation information and tracks the rear and front coil distances.

The share cut tracking unit operates by receiving a start signal from the coil tracking unit, and when receiving a cut signal, calculates cutting distances of the back and front surfaces using the tracked back and front coil distances, and calculates the calculated back and front surfaces. Each surface roughness value and average according to the cutting distance can be derived.

That is, by using the coil tracking unit, it is possible to synchronize the surface roughness measurement values of the front and rear surfaces by detecting the starting position of the coil and tracking the coil distances to the front and rear surfaces. In addition, the share cut tracking unit may calculate a cutting distance by using tracking information of the coil tracking unit, and calculate and manage a surface roughness value and an average of the coil for each calculated cutting distance.

In addition, the surface roughness measurement management apparatus receives the sensing data of the plurality of sensors, and is shared between the sensor control unit for controlling the position of the plurality of sensors and programs necessary for the management of the surface roughness measurement value and the average The storage device may further include a shared resource management unit for managing and operating the received sensing data and the operation information.

Furthermore, a screen operating unit which displays the derived surface roughness measurement value on the screen for each sensor position according to the coil distance, and manages a mathematical model parameter setting file and surface roughness information used to derive the surface roughness measurement value, The apparatus may further include a surface roughness model operating unit periodically checking the contents of the equation model variable setting file. Through this, it is possible for the convenience of the manager and to actively cope with changes in the operation situation.

As described above, although the present specification and drawings disclose preferred embodiments of the present invention, it is understood that other modifications based on the technical idea of the present invention can be implemented in the technical field to which the present invention pertains. It is self-evident to those of ordinary knowledge. In addition, although specific terms are used in the specification and the drawings, they are only used in a general sense to easily explain the technical contents of the present invention and to help the understanding of the present invention, and are not intended to limit the scope of the present invention.

10: welder detector 20: shear cut coil cutter
30: SCC device 40: measurement sensors
50: embedded DSP device 100: surface roughness measurement management device
110: coil tracking unit 120: SCC operating unit
130: share cut tracking unit 140: sensor control unit
150: shared resource operation unit 160: surface roughness model operation unit
170: screen operation unit

Claims (8)

Front and rear surface roughness measuring instruments installed with a distance difference and measuring surface roughness of front and rear surfaces of the coated steel sheet;
A weld detector which detects a weld of the continuously welded coil and transmits a weld detection signal; And
And a surface roughness measurement management device that detects a start position that is a point in time when the welding portion reaches the surface roughness measuring instrument by using the operation information and the welding portion detection signal.
The surface roughness measuring system of claim 1, wherein
And a share cut coil cutter for cutting the coil into sub-product coils and transmitting a cut signal.
And the surface roughness measurement management apparatus calculates a cutting distance using the weld detection signal, the cutting signal, and the operation information. According to claim 1, wherein the surface roughness measurement management apparatus
A coil tracking unit that detects a starting position of the coil by using the operation information and tracks a rear and front coil distances when the welding part detection signal is received;
Receives the start signal from the coil tracking unit and operates when the cutting signal is received, calculates the cutting distances of the back and front surfaces using the tracked back and front coil distances, and calculates the cutting distances of the back and front surfaces. A surface roughness measurement system comprising a share cut tracking portion that derives respective surface roughness values and averages. The method of claim 3, wherein the coil tracking unit,
Receiving the weld detection signal, the coil start position for detecting the start point of the weld passing the back and front surface roughness measuring instrument as the coil start position, and transmitting a start signal for driving the programs necessary for deriving the surface roughness value. tracker;
A back distance tracker for driving a program according to the start signal and tracking a back coil distance according to an operation speed; And
And a front distance tracker for driving a program in accordance with said start signal to track a front coil distance in accordance with said operating speed. The method of claim 1, wherein the front and back surface roughness measuring device
A plurality of sensors attached to a working side, a drive side, and a center of the front and rear surfaces according to the coil width to sense a surface of the coil; And
And an embedded digital signal processing (DSP) device for controlling the positions of the plurality of sensors and transmitting sensor circular measurement data according to signals detected from the plurality of sensors to the surface roughness measurement management device. According to claim 5, The surface roughness measurement management apparatus
A sensor controller configured to receive sensing data of the plurality of sensors and control positions of the plurality of sensors; And
And a shared resource management unit for managing and operating the received sensing data and the operation information while storing program resources shared between programs necessary for management of surface roughness measurements and averages. According to claim 6, wherein the surface roughness measurement management apparatus
A screen operating unit which displays the derived surface roughness measurement value on the screen for each position of each sensor according to a coil distance; And
The surface roughness measurement system further includes a surface roughness model operating unit that manages a mathematical model variable setting file and surface roughness information used to derive the surface roughness measurement value, and periodically checks the contents of the mathematical model parameter setting file. . The method of claim 3,
The surface roughness measurement management system,
Surface that is installed on the job site further transmits the site's operation information to the surface roughness measurement management device, and receives the derived surface roughness value and average to display on the operator's screen surface SCC (Supervisory Control Computer) device Roughness measuring system.

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