DE102016208522B4 - Control station of a printing press - Google Patents

Abstract

Control station of a printing press, comprising at least one support (04) for receiving a sheet-shaped printing material (06), a measuring device (07) for measuring a measured variable of the sheet-shaped printing material (06) placed on the support, at least one camera (08) for detecting at least a gesture made by a person at the control center (01) and an image processing device (09) for processing and evaluating images captured by the relevant camera (08), the relevant camera (08) having an upward detection area facing away from the support (04). (16), wherein the camera in question (08) detects the at least one gesture made by the person in its detection area (16), or the camera in question (08) detects the at least one gesture made by the person in its detection area (16). is at least detectable, characterized in that the sheet-shaped printing material (06) placed on the support (04) is held there in its respective position for its fixation by means of switchable suction air, with switching on and / or switching off the for fixing a on the support ( 04) placed on the sheet-shaped printing material (06) required suction air is actuated or at least actuable by at least one gesture, at least one pneumatic valve being controlled or at least controllable by the gesture detected by the camera (08) in question.

Description

The invention relates to a control center of a printing press according to the preamble of claim 1.

Through the DE 10 2012 022 882 A1 a device for controlling a machine in the graphic industry is known with a control stand, which control stand has at least one screen for displaying machine information, the control stand having a plurality of sensors for detecting gestures of an operator who operates the machine via the control stand, the Control stand below at least one screen has a support for receiving a sheet-shaped printing material, with at least one sensor being arranged so that it can recognize gestures of the operator, which this operator shows with his fingers on the surface of a printing material lying on the support, the sensors are preferably cameras and the control stand preferably has a color measuring device for detecting a sheet-shaped printing material lying on the support and the color measuring device can be controlled by means of the sensors for detecting gestures.

Through the DE 10 2006 048 539 A1 a device for positioning a measuring head over a printing material with a display device and a motor-driven positioning device for the measuring head is known, the positioning device for the measuring head being controllable by a computer which is connected to the display device.

Through the DE 10 2012 207 226 A1 a device for analyzing a printed copy is known, comprising a display unit with a display, in particular for visualizing at least one soft proof serving as a color reference for printed copies printed in a printing process, wherein a measuring system is provided which comprises a number of measuring units, which state data of the display unit and/or the printed copy.

Through the document SONG, Jie; SÖRÖS, Gabor; PECE, Fabrizio, FANELLO, Sean Ryan; IZADI, Shahram; KESKIN, Cem; HILLIGES, Otmar, In-air Gestures Around Unmodified Mobile Devices, in: UIST'14, October 8, 2014, pp. 319-329, online at http://delivery.acm.org/10.1 145/2650000/2647373/p319- song.pdf?, ip=194.59.120.161 &id=2647373&acc=ACTIVE%20SERVICE&key=36588E3806E10C85. 4D4702B0C3E38B35.4D4702B0C3E38B35.4D4702B0C3E38B35&CFID=712925514&CF TOKEN=49765696&_acm_=1483620770_ae15f1d8c50a89a55e52, accessed on January 5th .2017, a method that can be carried out with an ordinary tablet is known, in which a camera records at least one gesture made by a person, with an image processing device for processing and evaluation images captured by the camera in question.

Through the DE 10 2012 022 882 A1 a device for controlling a machine is known in the graphics industry, with a control station which has at least one screen for displaying machine information, the control station having a plurality of sensors for detecting gestures of an operator who operates the machine via the control station.

Through the DE 101 20 487 A1 a control station of a printing press is known, having at least one support for receiving a sheet-shaped printing material, a measuring device for measuring a measured variable of the sheet-shaped printing material placed on the support, the measuring device having a measuring bar extending above the curved printing material, the measuring bar of the measuring device being above the sheet-shaped printing material placed on the support can be moved.

The invention is based on the object of creating a control center for a printing press, the control center being particularly user-friendly for a measuring device integrated into it and being usable at any time.

The object is achieved according to the invention by the features of claim 1. The dependent claims relate to advantageous refinements and/or further developments of the solution found.

The advantages that can be achieved with the invention are, in particular, that at least one control function can be triggered without contact at the control center by a person, in particular by an operator of the printing press. The control functions that can be triggered here primarily relate to starting or stopping a motor-driven measuring device and/or fixing the printing material relative to the measuring device and/or triggering a measuring process with this measuring device, whereby this measuring device represents a module belonging to the control center. Safety-critical control functions for operating the printing press, especially its drives, are not the focus of consideration here. Since the triggering of the control functions, in particular the actuation of the measuring device, is carried out without contact, there is no or at least significant risk when carrying out work on the control center to a lesser extent the danger, e.g. B. controls and / or a screen of the measuring device and / or the control center z. B. to be soiled by printing ink or similar transferred from the still ink-moist printing material to the person's hand. In addition, the proposed operating concept can be implemented cost-effectively. It can be learned quickly and intuitively by the printing press operator. Further advantages can be seen in connection with the following description.

An exemplary embodiment of the invention is shown in the drawings and is described in more detail below.

• 1 eine Darstellung eines Leitstandes;
• 2 der Leitstand der 1 in einer Seitenansicht;
• 3 der Leitstand der 1 in einer Frontansicht.

Show it:

• 1 a representation of a control center;
• 2 the control center of the 1 in a side view;
• 3 the control center of the 1 in a front view.

1 shows in a perspective view an example and simplified control center 01 of a z. B. designed as a sheet-fed printing press (not shown), this control center 01 and the printing press being connected to one another at least in terms of data technology and generally arranged in spatial proximity to one another. The printing press is e.g. B. a rotary printing machine that prints in an offset printing process or a printing machine that prints in a non-impact printing process, i.e. a printing press without a printing form, ie a so-called digital printing machine.

1. a) eine z. B. tischförmige, insbesondere plan ausgebildete Auflage 04 mit einer z. B. in Schwarz ausgebildeten Oberfläche zur i. d. R. vollflächigen Aufnahme eines bogenförmigen Bedruckstoffes 06, z. B. eines Druckbogens aus Papier, Pappe oder Karton, wobei der insbesondere rechteckige Druckbogen Kantenlängen z. B. im Bereich von 110 mm x 900 mm oder größer aufweist und zur Prüfung eines mit der Druckmaschine auf ihn aufgebrachten Druckbildes aufgrund seiner Größe von einer am Leitstand 01 tätigen Person vorzugsweise beidhändig auf die Auflage 04 gelegt wird, wobei der auf der Auflage 04 aufgelegte bogenförmige Bedruckstoff 06 dort zu seiner Fixierung z. B. mittels schaltbarer Saugluft in seiner jeweiligen Lage gehalten oder zumindest haltbar ist,
2. b) eine z. B. optoelektronische Messeinrichtung 07 zum Messen einer Messgröße des auf der Auflage 04 aufgelegten bogenförmigen Bedruckstoffes 06, z. B. zum Messen einer Farbdichte und/oder eines Farbwertes und/oder eines Registers und/oder eines Passers in dem betreffenden mit der Druckmaschine auf den Bedruckstoff 06 aufgebrachten Druckbild,
3. c) mindestens eine vorzugsweise digitale Kamera 08 zur Erfassung von mindestens einer von einer Person mit mindestens einer seiner Hände am Leitstand 01 ausgeübten Geste, wobei die betreffende Kamera 08 z. B. als eine Halbleiterkamera mit mindestens einem Bildsensor, insbesondere mit einem CMOS-Bildsensor ausgebildet ist,
4. d) und eine insbesondere elektronische, vorzugsweise mindestens eine Recheneinheit aufweisende Bildverarbeitungseinrichtung 09 zur Verarbeitung und Auswertung von der betreffenden Kamera 08 erfasster Bilder, wobei von der betreffenden Kamera 08 erfasste Bilder insbesondere in Form digitaler Bilddaten von der betreffenden Kamera 08 z. B. über eine Datenleitung 11 oder drahtlos an die Bildverarbeitungseinrichtung 09 geleitet werden. Die Bildverarbeitungseinrichtung 09 ist ihrerseits z. B. über eine weitere Datenleitung 11 oder drahtlos datentechnisch z. B. mit der Steuereinheit 02 zur Steuerung der Druckmaschine verbunden. Die jeweilige diverse Einrichtungen und/oder Einheiten miteinander verbindende Datenleitung 11 ist z. B. als ein Datenbussystem ausgebildet.

The control center 01 has, in addition to a preferably electronic control unit 02 for mechanical, e.g. B. drive-based control of the printing press and at least one control element 03 connected to the control unit 02, e.g. B. a human-machine interface with an emergency stop switch has at least the following assemblies or elements:

1. a) a z. B. table-shaped, in particular flat, support 04 with a z. B. surface designed in black for generally full-surface acceptance of a sheet-shaped printing material 06, e.g. B. a printed sheet made of paper, cardboard or cardboard, the particularly rectangular printed sheet having edge lengths e.g. B. in the range of 110 mm x 900 mm or larger and, due to its size, is preferably placed with both hands on the support 04 by a person working at the control center 01 to check a print image applied to it with the printing press, the one placed on the support 04 arcuate printing material 06 there for its fixation z. B. is held in its respective position or at least durable by means of switchable suction air,
2. b) a z. B. optoelectronic measuring device 07 for measuring a measured variable of the sheet-shaped printing material 06 placed on the support 04, e.g. B. for measuring a color density and / or a color value and / or a register and / or a register in the relevant printed image applied to the printing material 06 with the printing press,
3. c) at least one preferably digital camera 08 for detecting at least one gesture made by a person with at least one of his hands on the control center 01, the camera 08 in question z. B. is designed as a semiconductor camera with at least one image sensor, in particular with a CMOS image sensor,
4. d) and a particularly electronic image processing device 09, preferably having at least one computing unit, for processing and evaluating images captured by the relevant camera 08, with images captured by the relevant camera 08 in particular in the form of digital image data from the relevant camera 08, for example. B. via a data line 11 or wirelessly to the image processing device 09. The image processing device 09 is in turn z. B. via another data line 11 or wirelessly, e.g. B. connected to the control unit 02 to control the printing press. The respective data line 11 connecting various devices and/or units is z. B. designed as a data bus system.

The measuring device 07 has a measuring bar 12 which extends preferably linearly above the arcuate printing material 06, with the measuring bar 12 of the measuring device 07 above the printing material 06, ie above the arcuate printing material 06 placed on the support 04 and preferably fixed there, in particular linearly, preferably in the in the 1 Directions indicated by a double arrow, ie can be moved bidirectionally along a front side of the control center 01 facing the person. Advantageously, the relevant camera 08, which detects at least one gesture, is arranged in the movable measuring bar 12. This arrangement is particularly advantageous because the camera 08 in question arranged in this way cannot be covered either by the printing material 06 or by the measuring bar 12 of the measuring device 07. Therefore, the camera 08 in question is freely accessible to the person working at the control center 01 at any time. The measuring bar 12 is for execution a movement of a z. B. controlled or at least controllable motor 13 by the control unit 02, at least the control of the motor 13 of the measuring bar 12 being contactless, in particular by at least one gesture exercised by the person in a detection area 16 of the camera 08 in question and detected by the camera 08 in question operated or at least operable. Alternatively or in addition to controlling the motor 13 of the measuring bar 12, a measuring process to be carried out with the measuring bar 12 of the measuring device 07 is controlled or at least controllable by at least one gesture made by the person in the detection area 16 of the camera 08 in question and detected by the camera 08 in question. It is also possible to switch on and/or switch off the suction air required to fix a sheet-shaped printing material 06 placed on the support 04, for example. B. actuated or at least operable by at least one gesture, with the gesture detected by the camera 08 in question z. B. at least one pneumatic valve is controlled or at least controllable. The gesture required to operate the motor 13 of the measuring bar 12 and/or to trigger the measuring process and/or to switch the suction air by at least one hand of the person working at the control station 01 was carried out in the image-evaluating image processing device 09, for example. B. either previously defined in the program or taught in there, that is, certain image data was defined that leads to the triggering of a specific control function.

In the preferred embodiment, the detection area 16 of the relevant camera 08 is directed away from the support 04, in particular vertically upwards, with the relevant camera 08 detecting the at least one gesture made by the person in its detection area 16, or with the relevant camera 08 the at least a gesture made by the person in its detection area 16 can at least be detected. The camera 08 in question is preferably arranged in the measuring bar 12 at its end facing the person performing the at least one gesture, e.g. B. in a range of up to 200 mm starting from the front of the control center 01 facing the person. As can be seen in particular from the 2 and 3 As can be seen, the detection area 16 of the camera 08 in question is preferably longitudinal to the front of the control center 01 and/or orthogonal thereto, in each case at an obtuse opening angle σ1; σ2 opened, preferably at an opening angle σ1; σ2 in the range of 135 °, preferably symmetrical to a central axis 17 of the detection area 16 of the relevant camera 08. If the support 04 z. B. is designed to be inclined in a ramp-like manner towards the front of the control center 01, this inclination relative to a horizontal z. B. is less than 30 °, in particular less than 15 °, the detection area 16 of the relevant camera 08 that detects the gesture made by the person is z. B. inclined at the same angle of inclination as that of the support 04 towards the front of the control center 01 ( 2 ), so that the central axis 17 of the detection area 16 of the relevant camera 08 is always arranged perpendicular to the support 04.

In an advantageous development of the solution found, in connection with the camera 08 in question, i.e. in particular in the measuring bar 12, for example. B. a distance sensor 14 is provided next to the image sensor of the camera 08, the distance sensor 14 measuring a distance between the camera 08 in question and the gesture made by the person, in particular in the detection area 16, or the distance sensor 14 being used to measure a distance between the camera 08 in question and the gesture made by the person, particularly in the detection area 16, is at least measurable.

The distance sensor 14, like the camera 08 in question, is preferably arranged in the measuring bar 12 at its end facing the person performing the at least one gesture. For example, due to a lens used by the camera 08 in question, its detection range 16 begins at a first height h1 of z. B. 100 mm e.g. B. above an upper boundary surface 18 of the measuring bar 12 and extends to a second height h2 of z. B. 650 mm e.g. B. above the upper boundary surface 18 of the measuring bar 12 ( 2 ). The distance sensor 14 can therefore be used to check whether a gesture made by the person is in the range determined by the heights h1; h2 defined detection area 16 has been carried out. The heights h1; h2 define in conjunction with the opening angle σ1; σ2 of the detection area 16 of the relevant camera 08 a measuring room. In the preferred embodiment of the solution found, only one gesture made by the person in the measuring space defined in this way is permitted to trigger a control function and/or only such a gesture is used by the image processing device 09 to control the motor 13 of the measuring bar 12 and/or to Switching the suction air fixing the printing material 06 on the support 04 and / or for controlling a measuring process to be carried out with the measuring bar 12 of the measuring device 07 is evaluated. A control function is thus triggered or at least can be triggered by means of the gesture detected by the camera 08, but this control function is triggered or at least can be triggered depending on the measured distance of the distance sensor 14. The distance-dependent triggering of a control function increases operational safety, e.g. b. the measuring device 07 increased. A person working at the control center 01 also gains certainty in which limited measuring space gestures are suitable for triggering a control function. Elsewhere, ie outside the defined measuring area, gestures with regard to a control function are ineffective.

The distance sensor 14 has z. B. at least one laser, preferably two lasers arranged at spaced apart positions, with which or with which the distance between the camera 08 and the gesture made by the person, for. B. is determined by using a triangulation method. Triangulation is a geometric method of optical distance measurement by measuring two angles within triangles. Calculating the distance of a measurement object, e.g. B. a person's hand performing a gesture to a straight baseline connecting the positions of the lasers is done using trigonometric functions, with the two angles starting from this baseline opening towards the measurement object, with a between the respective origins of these angles through the positions of the Laser given distance is known. Alternatively, the distance sensor 14 can e.g. B. be designed as an ultrasonic sensor and the distance to a person's hand executing a gesture z. B. by measuring the transit time between sending at least one ultrasonic pulse and receiving its echo. The distance sensor 14 provides its measured values z. B. the image processing device 09 available. The calculations to be carried out in the triangulation process are z. B. carried out in the image processing device 09 by its computing unit. Alternatively, the distance between the camera 08 in question and the gesture made by the person is also z. B. measurable by means of two spaced apart cameras 08 or by means of a camera 08 with two spaced apart image sensors. The camera(s) 08 and/or the distance sensor 14 are preferably permanently active, so that a control command can be issued at the control center 01 at any time using a gesture.

The control center 01 preferably has further assemblies not shown in the figures. So is e.g. B. at least one screen is provided for displaying machine information, e.g. B. a screen designed as a touchscreen, with this at least one screen z. B. designed as a large screen, a so-called wall screen and is arranged in particular along the rear side of the control center 01. Furthermore, the control center 01 z. B. a roof that extends at least over the support 04, with z. B. a lighting device is arranged. This lighting device has z. B. also has at least one infrared light source. This lighting device is z. B. arranged in such a way that the associated detection area 16 of the relevant camera 08 is illuminated and thereby a gesture made by a person at the control center 01 can be detected for the first time or at least in a better quality.

Reference symbol list

01

control center

02

Control unit

03

Control element

04

edition

05

-

06

printing material

07

Measuring device

08

camera

09

Image processing device

10

-

11

Data line

12

Measuring bar

13

engine

14

Distance sensor

15

-

16

Detection area

17

Axle (16)

18

Boundary surface

φ1

opening angle

φ2

opening angle

h1

Height

h2

Height

Claims (10)

Control station of a printing press, comprising at least one support (04) for receiving a sheet-shaped printing material (06), a measuring device (07) for measuring a measured variable of the sheet-shaped printing material (06) placed on the support, at least one camera (08) for detecting at least a gesture made by a person at the control center (01) and an image processing device (09) for processing and evaluating images captured by the relevant camera (08), the relevant camera (08) having an upward detection area facing away from the support (04). (16), the camera in question (08) having at least one in its detection range (16) from the person practiced gesture is recorded or the camera (08) in question can at least detect the at least one gesture made by the person in its detection area (16), characterized in that the sheet-shaped printing material (06) placed on the support (04) is there Fixation is held in its respective position by means of switchable suction air, wherein switching on and / or switching off the suction air required for fixing a sheet-shaped printing material (06) placed on the support (04) is actuated or at least actuable by at least one gesture, wherein by At least one pneumatic valve is controlled or at least controllable by the gesture detected by the camera (08) in question. control center Claim 1 , characterized in that the measuring device (07) has a measuring bar (12) extending above the arcuate printing material (06), the measuring bar (12) of the measuring device (07) above the arcuate printing material (06) placed on the support (04). ) can be moved, the relevant camera (08) detecting at least one gesture being arranged in the movable measuring bar (12). control center Claim 2 , characterized in that the measuring bar (12) is driven to carry out a movement by a controlled or at least controllable motor (13), at least the control of the motor (13) of the measuring bar (12) being carried out by at least one of the person in the detection area ( 16) of the relevant camera (08) and detected by the relevant camera (08) is actuated. control center Claim 2 or 3 , characterized in that a measuring process to be carried out with the measuring bar (12) of the measuring device (07) is controlled by at least one gesture made by the person in the detection area (16) of the camera (08) in question and detected by the camera (08) in question. control center Claim 1 or 2 or 3 or 4 , characterized in that a distance sensor (14) is provided in connection with the camera (08) in question, the distance sensor (14) measuring a distance between the camera (08) in question and the gesture made by the person or with the distance sensor (14) a distance between the relevant camera (08) and the gesture made by the person is at least measurable. control center Claim 5 , characterized in that the distance sensor (14) has at least one laser or an ultrasonic sensor. control center Claim 1 or 2 or 3 or 4 or 5 or 6 , characterized in that the relevant camera (08) and / or the distance sensor (14) is or are permanently active. control center Claim 2 or 3 or 4 or 5 or 6 or 7 , characterized in that the relevant camera (08) and / or the distance sensor (14) is or are arranged in the measuring bar (12) at its end facing the person performing the at least one gesture. control center Claim 2 or 3 or 4 or 5 or 6 or 7 or 8th , characterized in that the measuring bar (12) can be moved bidirectionally linearly above the support (04). control center Claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8th or 9 , characterized in that at least one screen for displaying machine information and / or a roof extending at least over the support (04) and / or a lighting device arranged in the roof is or are provided.

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