Control system for a functional section of a paper processing device

Description

Technical area

[0001] The present invention relates to a control system for a functional section of a paper processing device. Background of the invention

[0002] Modern manufacturing processes in the paper processing industry, especially multi-stage production lines in the paper processing industry, are often remotely monitored and controlled from remote locations. It is therefore necessary to precisely coordinate maintenance phases with, for example, maintenance personnel to prevent, for example, the production line from being started while maintenance personnel are still in safety-relevant areas. Especially in highly complex processes and when multiple maintenance teams are deployed, miscommunications can often occur, leading to the production line being stopped for no reason or being restarted even though operation has not yet been authorized for safety reasons.

[0003] EP 1 662 349 A1 describes a device for safeguarding hazardous areas of a machine. If a person or a dangerous object is detected in the operating area, either the entire machine is shut down, or parts of the machine are shut down, or certain parts of the machine are put into a safe state in which a person or an unauthorized object cannot come into contact with the hazardous parts of the machine.

[0004] DE 102 07 871 A1 describes a safety device for monitoring a non-visible danger area on a printing press.

[0005] DE 103 38 973 A1 discloses a method and a device for detecting faults during the transport of a material web in a material web processing machine.

[0006] DE 10 2015 003 655 A1 describes that a robot of a robot system can be controlled by a control device, whereby signals and data can be sent to the control device via a portable control panel. The control panel can be transformed between a valid and an invalid state. In the valid state, an operation using the control panel is declared valid; in an invalid state, an operation of the control panel is declared invalid.

[0007] DE 10 2006 048 166 A1 discloses that a movement control of a machine is directly intervened in or a shutdown is triggered if a person is in a danger zone.

[0008] US 2003 / 0050735 A1 discloses that a robot's movement area is monitored by a sensor of a safety device to determine whether a person is within the movement area. The safety device controls the drive power of the robot's motion control system. The safety device can temporarily suppress or deactivate the motion control system.

[0009] US 2014 / 0266678 A1 discloses that an acoustic alarm is triggered when a processor detects that a power supply has reached a lower predefined threshold. After the alarm is triggered, an interface device can be shut down.

[0010] EP 1 479 964 A2 describes a system for the safety remote control of a machine, wherein control signals for controlling the machine are transmitted from a mobile operating device to a base station, and wherein a spatial position of the operating device is determined. Depending on the position of the operating device, a control signal is transmitted or suppressed.

[0011] WO 2008 / 028738 A1 describes a printing press with at least one unit operated by a mobile operating unit, wherein the unit executes a control command transmitted by the operating unit only when the operating unit is located at a position within an operating range belonging to the unit.

[0012] EP2858939 A1 discloses the remote control of machines using a control system with the use of various cameras.

[0013] DE19527832 A1 describes an on-site release switch so that a machine cannot be operated as long as people are in a danger area. Description of the invention

[0014] It is an object of the present invention to improve the work safety of a paper processing device.

[0015] This object is achieved with a control system for a functional section of a paper processing device according to independent claim 1 and a method according to claim 11.

[0016] According to a first aspect of the present invention, a control system for a functional section of a paper processing device is described, wherein the functional section defines a processing step of a paper processing device. The control system has at least one security camera arranged in the functional section such that a functional area of ​​the functional section, which can be entered by a person, can be recorded by the security camera. The system further has an operating unit installed spatially remote from the functional section and configured to operate the functional section by means of a remote control. The system further has a security device coupled to the security camera and the operating unit.The security device receives the image data recorded by the security camera. The security device is configured such that, depending on the received image data from the security camera, the security device permits operation of the functional section using the operating unit or blocks operation of the functional section using the operating unit, so that remote control of the functional section is prevented if the security device detects a person in the functional section based on the image data. The control system further comprises a first group of security cameras arranged in the functional section such that the functional area of ​​the functional section can be recorded using the security cameras of the first group.Furthermore, the control system has a second group of security cameras which are arranged in a further functional section, such that a further functional area of ​​the further functional section can be recorded by means of the security cameras of the second group.

[0017] Furthermore, the security device is configured such that the security device permits or blocks operation of the functional section by means of the operating unit depending on the received first image data of the first group of security cameras and that the security device permits or blocks operation of the further functional section by means of the operating unit depending on the received second image data of the second group of security cameras.

[0018] The paper processing device is particularly designed to process paper, in particular cardboard layers or cardboard boxes. During the processing process of the paper processing device, for example, cardboard boxes can be produced in multiple layers, cut to size, and / or printed. The paper processing device in particular has several functional sections, with each functional section defining a respective processing step. A functional section comprises, for example, a stacking device (for stacking flat cardboard elements or for picking up individual cardboard elements from a stack), a laminating device (for gluing several layers of paper or cardboard layers), a paper feed device, and / or a drying device.

[0019] The operating device is designed to operate and control the functional section and, accordingly, the paper processing device. The operating device can, for example, be installed in the paper processing device. The operating device can, for example, transmit control data to the paper processing device via a wire or wireless connection in order to send control commands or receive status data or control data from the paper processing device. The operating unit is, for example, a computer that processes the corresponding data using a microprocessor. The operating unit also has an input element, such as a keyboard.

[0020] The safety camera or several safety cameras in a group are assigned to a functional section. The safety camera records specific safety-relevant areas within the functional section. For example, the safety-relevant areas can represent maintenance areas, maintenance installations, or other movable machine elements within the functional section that must be handled or maintained by an operator during maintenance or repair. The safety cameras monitor the safety-relevant areas of the functional section and record image data (individual images, film sequences, or live streams) and send the image data to the control unit and / or the display unit.

[0021] The system according to the invention uses image data recorded by security cameras (from a security device described below) to determine whether remote control of a functional section using a control unit is safe or not for security reasons. This increases safety for both users and the processing process.

[0022] The safety device analyzes and evaluates the recorded image data. Based on the recorded image data, the safety device locks or unlocks the control unit. If, for example, the safety device detects a person in the functional section based on the image data, the safety device locks the control unit. This means that, for example, activating the processing in the functional section from the control unit is not possible. Since the control unit is located away from the functional section, remote control of the functional section is prevented. Alternatively, the safety device can use the image data to determine whether the security cameras are functioning correctly.If the safety device detects that the safety cameras are not functioning correctly, the safety device also locks the control unit to prevent a hasty and unnecessary termination of the process in the functional section.

[0023] According to another exemplary embodiment, the safety device is configured to compare the recorded image data with target image data. Depending on whether the image data matches the target image data, the safety device permits or blocks operation of the functional section using the control unit.

[0024] According to a further exemplary embodiment, the control system has at least one process camera, which is arranged in the functional section in such a way that a work process in the functional section can be recorded by means of the process camera. The process camera is coupled to the operating unit or the safety device in such a way that the work process can be terminated by means of the operating unit (by the user) or the safety device based on the recorded work process. The process camera, in particular, records process-relevant images of the work process. For example, the position of a paper tape or the unwinding behavior of the paper tape from the roll can be recorded with the process camera. If the safety device determines, based on the recorded image data of the work process, that, for example, the track of a paper tape is incorrect, the safety device can automatically terminate the work process.

[0025] While the process camera captures images of a work process, the security camera, in comparison, captures images of the workspace in the functional area that can be entered by a person. It is certainly possible for a process camera to function as a security camera, and vice versa.

[0026] According to another exemplary embodiment, the control system has a display unit. The operating unit can be used to select the image data from the at least one security camera, and the display unit is configured to display the selected image data. The display unit is, for example, a screen or a projector. A user can permit or disable operation of the functional section based on the displayed image data.

[0027] According to another exemplary embodiment, the display unit and the operating unit are integrally formed as a touchscreen. For example, the touchscreen is a capacitive display.

[0028] According to a further exemplary embodiment, the display unit is configured such that the functional section of the paper processing device can be displayed, wherein the operating unit is configured such that the displayed functional section can be selected. The operating unit is configured to display the functional area of ​​the functional section recorded by the security camera on the display unit based on the selected functional section. Thus, the paper processing device and its corresponding functional sections can be displayed on the display unit (e.g. the touch screen). A user can select the operating unit by pressing a finger on the operating unit (e.g. a display area of ​​a corresponding functional section on the touch screen). The images from the security camera and / or the process camera are then displayed on the display unit.Furthermore, the operating status of the work process from the functional section can be displayed on the display unit. Furthermore, the user can be shown whether the security camera is providing image data that allows operation of the control unit or not.

[0029] According to a further exemplary embodiment, the security device is configured to compare recorded first image data from the first group of security cameras with first target image data and second image data from the second group of security cameras with second target image data, wherein the security device displays the first image data from the first group of security cameras and / or the second image data from the second group of security cameras on the display unit depending on the comparison result. In other words, the images from the first or second security cameras are not displayed upon explicit selection by a user, but rather automatically or independently by the security device. Thus, the user can monitor the status of the system on the display unit and is automatically alerted to malfunctions by the image data of the critical functional sections being automatically displayed on the display unit.

[0030] According to another exemplary embodiment, the operating unit is configured such that the functional section and / or the additional functional section can be selected by a user. The operating unit is configured to display the first group of security cameras or the second group of security cameras on the display unit depending on the selection of the functional section or the additional functional section.

[0031] According to a further aspect, a method for operating a control system for a functional section of a paper processing device is described. A functional area of ​​a functional section is recorded using a security camera, wherein the control system has the at least one security camera arranged in the functional section. The functional section is operated using an operating unit of the control system. The image data of the at least one security camera can be selected using the operating unit. A display unit is configured to display the selected image data so that a user permits or blocks operation of the functional section based on the displayed image data.

[0032] According to another exemplary embodiment, a security device is coupled to the security camera and the control unit. The security device receives image data from the security camera. Operation of the functional section using the control unit is permitted or blocked by the security device depending on the image data received from the security camera.

[0033] According to a further embodiment of the method, the functional section of the paper processing device is displayed on the display unit. The displayed functional section is selected using the operating unit. Based on the selected functional section, the safety device displays the functional area of ​​the functional section recorded by the safety camera on the display unit.

[0034] According to another exemplary embodiment of the method, the functional area of ​​the functional section is displayed using security cameras of a first group. Another functional area of ​​a further functional section is displayed using security cameras of a second group.

[0035] According to another exemplary embodiment of the method, the security device permits or blocks operation of the functional section by means of the operating unit depending on the received first image data from the first group of security cameras. Furthermore, the security device permits or blocks operation of the further functional section by means of the operating unit depending on the received second image data from the second group of security cameras.

[0036] According to a further exemplary embodiment of the method, first image data from the first group of security cameras recorded by the security device are compared with first target image data, and second image data from the second group of security cameras are compared with second target image data. Depending on the comparison result, the security device displays the first image data from the first group of security cameras and / or the second image data from the second group of security cameras on the display unit. In other words, the images from the first or second security cameras are not displayed upon explicit selection by a user, but rather automatically or independently by the security device. Thus, the user can monitor the status of the system on the display unit and is automatically alerted to malfunctions by automatically displaying the image data from the critical functional sections on the display unit. Short description of the drawings

[0037] For further explanation and better understanding of the present invention, exemplary embodiments are described in more detail below with reference to the accompanying drawings. They show: Fig. 1 a schematic representation of a paper processing device with a control system according to an exemplary embodiment of the present invention, and Fig. 2 a schematic representation of an operating unit and a display unit according to an exemplary embodiment of the present invention. Detailed description of exemplary embodiments

[0038] Identical or similar components in different figures are provided with the same reference numerals. The representations in the figures are schematic.

[0039] Fig. 1shows a control system 100 for a functional section I, II, III of a paper processing device 140. The control system 100 has at least one security camera 110, 120, 130, which is arranged in the functional section I, II, III such that a functional area of ​​the functional section I, II, III can be recorded using the security camera 110, 120, 130. An operating unit 101 of the system 100 is configured to operate the functional section I, II, III. The image data of the at least one security camera 110, 120, 130 can be selected using the operating unit 101. A display unit 103 is configured to display the selected image data so that a user can permit or block operation of the functional section I, II, III based on the displayed image data.

[0040] Furthermore, a security device 102 can be provided, which is coupled to the security camera 110, 120, 130 and the operating unit 101, wherein the security device 102 receives image data from the security camera 110, 120, 130. The security device 102 is configured such that, depending on the received image data from the security camera 110, 120, 130, the security device 102 permits operation of the functional section I, II, III by means of the operating unit 101 or blocks operation of the functional section I, II, III by means of the operating unit 101.

[0041] The paper processing device 140 is designed to process paper, in particular cardboard layers or cardboard boxes. During the processing process of the paper processing device 140, for example, cardboard boxes can be produced in multiple layers, cut to size, and / or printed. The paper processing device 140 has, in particular, a plurality of functional sections I, II, III, wherein each functional section I, II, III defines a processing step in a functional area. A functional section I, II, III comprises, for example, a stacking device (for stacking flat cardboard elements or for picking up individual cardboard elements from a stack), a laminating device (for gluing multiple layers of paper or cardboard layers), a paper feed device, and / or a drying device.

[0042] The operating device 101 is designed to operate and control the functional sections I, II, III and, accordingly, the paper processing device 140. The operating device 101 is installed spatially remote from the functional sections I, II, III and, for example, the paper processing device 140. The operating device 101 can, for example, transmit control data wired or wirelessly to the paper processing device 140 in order to send control commands or receive status data or control data from the paper processing device 140. The operating unit 140 has an input element, such as a keyboard.

[0043] The safety camera 110, 120, 130 or multiple safety cameras 110, 120, 130 of a group are assigned to a functional section I, II, or III. The safety camera 110, 120, 130 records specific safety-relevant areas within the functional section I, II, or III. For example, the safety-relevant areas can represent maintenance areas, maintenance installations, or other movable machine elements within the functional section that must be handled or maintained by an operator during maintenance or repair. The safety cameras 110, 120, 130 monitor the safety-relevant areas of the functional section I, II, or III and record image data (individual images, film sequences, or live streams) and send the image data to the control unit 101 and / or the safety device 102.

[0044] The user analyzes and evaluates the recorded image data. Furthermore, the safety device 102 can analyze and evaluate the recorded image data. Based on the recorded image data, the safety device 102 can lock or unlock the control unit 101. Additionally, the user can use the control unit 101 to lock the operation of functional sections I, II, and III.

[0045] If the safety device 102 detects, for example, a person in functional section I, II, III based on the image data, the safety device 102 locks the operating unit 101. This means that, for example, activation of the processing in functional section I, II, III from the operating unit 101 is not possible. If the operating unit 101 is located away from functional section I, II, III, remote control of functional section I, II, III is prevented. Alternatively, the safety device 102 can use the image data to detect whether the safety cameras 110, 120, 130 are functioning correctly. If the safety device 102 determines that the safety cameras 110, 120, 130 are not functioning correctly, the safety device 102 also locks the operating unit 101 to prevent a hasty and unnecessary termination of the process in functional section I, II, III.

[0046] The control system has at least one process camera 112, 122, 132, which is arranged in the functional section I, II, III, such that a work process 111, 121, 131 in the functional section I, II, III can be recorded by the process camera 112, 122, 132. The process camera 112, 122, 132 is coupled to the display unit 103 or the operating unit 101 such that the user can terminate the work process 111, 121, 131 using the operating unit 101 based on the recorded work process. Furthermore, the process camera 112, 122, 132 can be coupled to the safety device 102 such that the safety device 102 can terminate the work process 111, 121, 131 based on the recorded work process.

[0047] The process camera 112, 122, 132 captures, in particular, process-relevant images of the work process 111, 121, 131. For example, the process camera 112, 122, 132 can record the position of a paper tape or the unwinding behavior of the paper tape from the roll. If the safety device 102 determines, based on the captured image data of the work process 111, 121, 131, that, for example, the track of a paper tape is incorrect, the safety device 102 can automatically terminate the work process 111, 121, 131.

[0048] While the process camera 112, 122, 132 captures images of a work process 111, 121, 131, the safety camera 110, 120, 130, in comparison, captures the workspace in the functional area that can be entered by a person. It is certainly possible for a process camera 112, 122, 132 to function as a safety camera 110, 120, 130, and vice versa.

[0049] The operating unit 101 can be used to select the image data from at least one security camera 110, 120, 130, with a display unit 103 configured to display the selected image data. The display unit 103 and the operating unit 101 are integrally formed, for example, as a touchscreen.

[0050] Fig. 2shows an exemplary representation of the operating unit 101 and the display unit 103. A desired functional section I is selected by means of the operating unit 101. The display unit 103 displays the functional section I of the paper processing device 140. The operating unit 101 is configured, based on the selected functional section I, to display the functional area of ​​the functional section I recorded by the security camera 110 on the display unit 103 using camera recordings A to F from the security cameras 110 from the functional section I. Thus, the paper processing device 140 and its corresponding functional sections I, II, III can be displayed on the display unit 103 (e.g. a touch screen). A user can select this by pressing the operating unit 101 with a finger (e.g. a display area of ​​a corresponding functional section I on the touch screen).Images A to F from the safety cameras 110 and / or the process camera 112 are then displayed on the display unit 103. Furthermore, the operating state of the work process 111, 121, 131 from functional section I can be displayed on the display unit 103. Furthermore, the user can be shown whether the safety camera 110 is providing image data that allows operation of the control unit 101 or not. List of reference symbols:

[0051] 100Control system 101Operating unit 102Safety device 103Display unit 110(first) security camera 111first work process 112process camera 120(second) security camera 121second work process 122process camera 130(third) security camera 131third work process 132process camera 140Paper processing device First functional section II Second functional section III Third functional section A-FKameraaufnahmen

Claims

1. Control system (100) for a functional section (I, II, III) of a paper processing device (140), wherein the functional section (I, II, III) defines a processing step of a paper processing device (140), the control system (100) having: at least one safety-monitoring camera (110, 120, 130), which is arranged in the functional section (I, II, III), such that a functional region of the functional section (I, II, III), which can be entered by a person, can be captured by means of the safety-monitoring camera (110, 120, 130), an operating unit (101), which is installed away from the functional section (I, II, III) and is designed to operate the functional section (1, 11, 111) by means of a remote control, and a safety apparatus (102), which is coupled to the safety-monitoring camera (110, 120, 130) and the operating unit (101), wherein the safety apparatus (102) receives the image data captured by the safety-monitoring camera (110, 120, 130) from the safety-monitoring camera (110, 120, 130), wherein the safety apparatus (102) is configured such that the safety apparatus (102) allows operation of the functional section (I, II, III) by means of the operating unit (101) or blocks operation of the functional section (I, II, III) by means of the operating unit (101), on the basis of the image data received from the safety-monitoring camera (110, 120, 130), such that remote control of the functional section (I, II, III) is prevented when the safety apparatus (102) recognizes a person in the functional section (I, II, III) based on the image data, characterized in that the control system further has a first group of safety-monitoring cameras (110), which are arranged in the functional section (I), such that the functional region of the functional section (I) can be captured by means of the safety-monitoring cameras (110) of the first group, a second group of safety-monitoring cameras (120), which are arranged in a further functional section (II), such that a further functional region of the further functional section (II) can be captured by means of the safety-monitoring cameras (120) of the second group, and the safety apparatus (102) is configured such that the safety apparatus (102) allows or blocks operation of the functional section (I) by means of the operating unit (101), on the basis of the first image data received from the first group of safety-monitoring cameras (110) and such that the safety apparatus (102) allows or blocks operation of the further functional section (II) by means of the operating unit (101), on the basis of the second image data received from the second group of safety-monitoring cameras (120).

2. Control system (100) according to claim 1, wherein the functional section (I, II, III) is a stacking device, a laminating device, a paper feed apparatus and / or a drying apparatus.

3. Control system (100) according to claim 1 or 2, wherein the safety apparatus (102) is configured to compare the captured image data with target image data, wherein the safety apparatus (102) allows or blocks operation of the functional section (I, II, III) by means of the operating unit (101), on the basis of the correlation of the image data with the target image data.

4. Control system (100) according to any one of claims 1 to 3, further having at least one process camera (112, 122, 132), which is arranged in the functional section (I, II, III), such that a working process (111, 121, 131) in the functional section (I, II, III) can be captured by means of the process camera (112, 122, 132), wherein the process camera (112, 122, 132) is coupled to the operating unit (101) such that the working process can be terminated by a user by means of the operating unit (101) or automatically by the safety apparatus (102), based on the working process captured.

5. Control system (100) according to any one of claims 1 to 4, wherein the display unit (103) and the operating unit (101) are constructed integrally as a touch screen.

6. Control system (100) according to any one of claims 1 to 5, wherein the display unit (103) is configured such that the functional section (I, II, III) of the paper processing device (140) can be displayed, wherein the operating unit (101) is configured such that the functional section (I, II, III) displayed can be selected, wherein the operating unit (101) is configured, based on the selected functional section (I, II, III), to display the functional region of the functional section (I, II, III) captured by means of the safety-monitoring camera (110, 120, 130) on the display unit (103).

7. Control system (100) according to any one of the preceding claims, wherein the safety apparatus (102) is configured such that captured first image data from the first group of safety-monitoring cameras (110) is compared with first target image data and second image data from the second group of safety-monitoring cameras (120) is compared with second target image data, wherein the safety apparatus (102) displays the first image data from the first group of safety-monitoring cameras (110) and / or the second further image data from the second group of safety-monitoring cameras (120) on the display unit (103) on the basis of the results of comparison.

8. Control system (100) according to any one of the preceding claims, wherein the operating unit (101) is configured such that the functional section (I) and / or the further functional section (II) can be selected by a user, wherein the operating unit (101) is configured to display the first group of safety-monitoring cameras (110) or the second group of safety-monitoring cameras (120) on the display unit (103) on the basis of the selection of the functional section (I) or the further functional section (II).

9. Method for controlling a functional section (I, II, III) of a paper processing device (140), wherein the functional section (I, II, III) defines a processing step of a paper processing device (140), the method having: Capturing a functional region of the functional section (I, II, III) by means of a safety-monitoring camera (110, 120, 130), which is arranged in the functional section (I, II, III), Operating the functional section (I, II, III) by remote control by means of an operating unit (101), which is installed away from the functional section (I, II, III), wherein a safety apparatus (102), which is coupled to the safety-monitoring camera (110, 120, 130) and the operating unit (101), receives the image data captured by the safety-monitoring camera (110, 120, 130) from the safety-monitoring camera (110, 120, 130), wherein the safety apparatus (102) is configured such that the safety apparatus (102) allows operation of the functional section (I, II, III) by means of the operating unit (101) or blocks operation of the functional section (I, II, III) by means of the operating unit (101), on the basis of the image data received from the safety-monitoring camera (110, 120, 130), such that remote control of the functional section (I, II, III) is prevented when the safety apparatus (102) recognizes a person in the functional section (I, II, III) based on the image data, characterized in that the control system further has a first group of safety-monitoring cameras (110), which are arranged in the functional section (I), such that the functional region of the functional section (I) can by captured by means of the safety-monitoring cameras (110) of the first group, a second group of safety-monitoring cameras (120), which are arranged in a further functional section (II), such that a further functional region of the further functional section (II) can be captured by means of the safety-monitoring cameras (120) of the second group, and the safety apparatus (102) is configured such that the safety apparatus (102) allows or blocks operation of the functional section (I) by means of the operating unit (101), on the basis of the first image data received from the first group of safety-monitoring cameras (110) and such that the safety apparatus (102) allows or blocks operation of the further functional section (II) by means of the operating unit (101), on the basis of the second image data received from the second group of safety-monitoring cameras (120).