FR2800007A1 - DEVICE FOR THE WIRELESS TRANSMISSION OF SIGNALS BETWEEN A PRINTING MACHINE CONTROL SYSTEM AND A MOBILE COMPUTING UNIT - Google Patents

Abstract

- Device for the wireless transmission of signals between a control system of a printing machine and a mobile computing unit. - According to the invention, each interface (8) of the functional units of the printing machine and the interface (12) of the mobile computing unit (10) consist of a transmission and reception unit ( 11, 16) for signals to be exchanged wirelessly and with interface electronics (15, 22), at least the transmit and receive unit (11, 16) of at least one of the interfaces ( 8) functional units and / or the interface (12) of the mobile computing unit (10) being arranged spatially separate from the corresponding functional unit (2-6) and / or the control unit mobile computing (10).

Description

The present invention relates to a device for transmission

  wireless signals between a control system of an im-

  pressure, in particular a sheetfed offset printing machine, and a

  mobile computing unit, print machine control system

  consisting of several control units and each control unit

  control being carried out for controlling and / or regulating the operation

  che of a functional unit of the printing machine and, for bidirectional wireless data transmission between each control unit and the mobile computing unit, the functional units having an interface connected to the control unit, even as the mobile computing unit has an interface, and, to carry out the wireless transmission of the signals between the interface of the functional units and the interface of the unit

  mobile computing, these can be oriented towards each other.

  Document DE-297 16 311 discloses an arrangement of

  maintenance on a printing machine. The printing machine pre-

  has several functional units, each functional unit being controlled by its own control unit. For service purposes

  and diagnostic, individual control units, functional units

  printing machine are connected to a computer

  transportable diagnosis via infrared interfaces,

  which are arranged as well on the functional unit of the machine

  also on the maintenance computer. The calculation

  maintenance engineer acquires the machine data necessary for troubleshooting and transfers test data and programs

  diagnostic to the control unit of the respective functional unit.

  Obstacles to guarantee flawless data exchange

  must not interfere with the transmission channel formed by the infra-

  red of the functional unit and the infrared interface of the main unit

  tenancy. To guarantee low stray radiation and, at the same time,

  high transmission security, data transmission channels

  arises are carried out, each time, using a transmitting and receiving unit, so that these receiving and transmitting units are

  oriented towards each other within a specific radiation angle

  trusted. The direct visual link necessary between the functional unit and the diagnostic computer is however hampered in such devices.

  service, which requires, for a correct diagnosis, simultaneously an observation

  place of the event (for example inside a cupboard

  or between two printing rounds) and relevant data

  are displayed on the diagnostic computer. The features cons-

  tructives further limit the extent of data transmission.

  Thus, the object of the invention is to provide a device in which, at

  every instant, an intact range of transmission between a functional unit

  the diagnostic computer and, simultaneously, mobility

  high of the diagnostic computer are guaranteed.

  According to the invention, this object is achieved in that each interface of the

  functional units and the interface of the mobile computing unit are

  killed by a transmitting and receiving unit for signals to be exchanged wirelessly and by interface electronics, at least the unit

  transmission and reception of at least one of the interfaces of the functional units

  tional and / or the interface of the mobile computing unit being arranged spatially separate from the corresponding functional unit and / or

of the mobile computing unit.

  The advantage of the invention is that the dependence of the place

  of known devices is overcome. Thus, maintenance or diagnosis-

  printing machine tick can be done in any place

  conch. Thanks to the flexible arrangement of transmitting and receiving units

  tion, any spatial modification of the extent of transmission

  is possible, the advantages of low stray radiation and safety

  high transmission rity remaining guaranteed. It is also possible to perform a simultaneous observation of the diagnostic computer and

the printing machine on site.

  In one embodiment, the transmitting and receiving unit, connected to the control unit, of the interface of the functional units is made in a spatially modifiable manner and is connected, via an electrical connection, to the control unit arranged in or on the functional unit.

  In addition, the transmitting and receiving unit mounted on the unit operates

  tional can be arranged in a support and be withdrawn therefrom

  if necessary and be fixed in any place of the functional unit-

  nelle. For a corresponding realization of the length of the electrical connection

  we can also imagine an arrangement on a functional unit

  nelle neighbor, when the concrete use case makes this necessary.

  To facilitate external fixing in any location, the transmitting and receiving unit is self-adhesive for the

  external attachment to the functional unit.

  In another embodiment, the transmitting and receiving unit of the mobile computing unit is arranged opposite to the transmitting unit

  and reception of the interface of the functional units fixed in an unexpected way.

  movable to the functional unit, the transmitting and receiving unit and the elect

  interface control unit of the mobile computing unit being fixed on the functional unit and being connected, by means of an electrical connection, to

  the mobile computing unit. Interface electronics are also transforming

  simultaneously the data sequences of the signals transmitted so

  optics into electrical signals which are processed by the mo-

bile.

  The device according to the invention is particularly simple and eco-friendly.

  nominate to perform when, for bidirectional data transmission-

  Between the control unit of each functional unit and the mobile computing unit, the transmitting and receiving units forming the transmission channels are made as semiconductor diodes working

in the infrared domain.

  In addition, a constructively simple solution is achieved when

  data exchange between the inter-

  opposite the functional units and the transmitting and receiving unit of the mobile computing unit is carried out in both directions by means of one and the same transmission channel, the respective semiconductor diode

  working on the one hand as a transmitter and on the other hand as a receiver.

  In addition, the semiconductor diode of the mobile computing unit is

  fixed opposite to the semiconductor diode of the interface of the

  functional tees on the functional unit and is connected, via a second electrical connection, to the interface electronics arranged on

or in the mobile computing unit.

  Another solution to achieve the goal is that

  the transmitting and receiving unit, fixedly arranged on the functional unit

  the interface of the functional units and the transmitting and receiving unit fixedly installed on the mobile computing unit are linked together via a light guide for transmission

wireless signals.

  The figures of the appended drawing will make it clear how the invention can be implemented. In these figures, identical references

  denote similar elements.

  Figure 1 shows a first device according to the invention.

  Figure 2 shows a second device according to the invention.

  Figure 3 shows a first interface.

  Figure 4 shows a second interface.

  The principle of the data transmission device according to the invention

  tion is shown in Figure 1. A sheet offset printing machine 1 further has several sheets not shown, which are fed to a first offset printing unit 3. To this first offset printing unit 3, is connected a second printing unit

  offset 4. In each printing unit, we print with another

  cre or color. The second offset printing unit 4 is followed by a varnishing unit 5, to which an outlet 6 is connected to receive the

printed sheets.

  Each of the individual functional units 2 to 6 of the ma-

  printing machine 1 also has a control unit 7, which monitors, in a decentralized manner, all the control and regulation processes necessary for the respective functional units 2 to 6. The control units 7 of the individual functional units 2 to 6 are also constructed identically and consist of an interface

  8 which is connected to a microprocessor 9.

  To be able to check the functional capacity of the

  individual and / or all of the respective functional units

  tives 2 to 6 or, when a fault occurs, to be able to carry out a targeted search for faults, the interface 8 of the control unit 7 of

  each functional unit is realized, in this case, as inter-

  infrared face, which allows wireless transmission and wireless reception

  data between functional units 2 to 6 and a service calculator

  transportable defect 10. The service computer 10 likewise has a

  infrared interface 1 2, which is coupled to a second microprocessor 13.

  The device according to the invention, however, does not relate uni-

  only contactless data exchange using infrared devices. Also, other galvanically decoupled uses,

  like directed beam broadcasting, are imaginable.

  The interface 8 consists of a transmission and reception unit 1 and an interface electronics 1 5. The transmission and reception unit

  1 1 of each interface 8 of the functional units 2 to 6 can moreover

  feel, each time, a separate transmitting device and a separate receiving device. In the case of the use of semiconductor diodes, one of these diodes can however work both as a transmitter and as a receiver. The transmission and reception unit 16 of the interface i12 of the service computer 10 is furthermore always carried out so

equivalent (Figures 3 and 4).

  Each transmission and reception device 11 transmits the signal in a space cone 14 predefined by its arrangement, which is indicated 15 in FIGS. 1 and 2. The transmission and reception unit 16 of the interface 12 of the service computer 10 must also be arranged inside

  this space cone 14 to be able to receive or transmit a signal without para-

  site. In order to obtain such a transmission range without interference for every conceivable use case of maintenance and diagnosis, the transmission and reception unit 11 of the second offset printing unit 4 is arranged spatially separate from its electronics. interface 15. While the interface electronics 15 is arranged near or inside the control unit 7 of the offset printing unit 4, the transmitting and receiving unit 1 1 is made in a mobile manner and is connected, by means of an electrical connection 17, to the interface electronics 15. As can be seen in FIG. 1, the transmitting and

  reception 1 1 can be fixed anywhere outside the car-

  ter of the offset printing unit 4. The transmitting and receiving unit 1 1 is also produced in a self-adhesive manner. Thus, it can be easily placed elsewhere in the machine magnetically or by

  suction cups, adhesive or with a simple self-adhesive tape

  singing. The electrical connection 17 is always constituted in the form of a spiral cable or a self-winding cable. In FIG. 2, it is arranged, on the first printing unit

  offset 3, on the transmitting and receiving unit 11 of the interface 8 of the uni

  functional tees, by covering it, a mechanical fixing 18 on the printing unit 3, on which is fixed a light guide 19, the other end of which ends in a second mechanical fixing 20 fixed on the

  service computer 10, the light guide inputs 19 being arranged

  created directly opposite the transmitting and receiving unit

  11, each time fixedly arranged, of the interface 8 of the functional units

  or to the transmission and reception unit 16 of the interface 12 of the service computer 10. Since the light guide 19 likewise represents a flexible device, it can be adapted, in this embodiment, to each case of service and maintenance, without the transmission range being hindered by

  protruding machine parts or the like. The freedom of movement of the cal-

  service culateur 10 is also unlimited.

  In Figure 2, there is shown, on the varnishing unit 5, another embodiment of the invention. The transmitting and receiving unit 11, produced in a fixed manner, of the interface of the functional units 8 comprises

  a mechanical adapter 21, which receives the infrared interface 12 of the cal

  service culator 10, that is to say the transmission and reception unit 16 and the corresponding interface electronics 22. The interface electronics 22

  modulates the signals supplied by the control unit 7 of the function unit-

  nelle 4 and emitted by the transmitting unit of the interface of the functional units-

  them, as received by the reception unit of the interface 12 of the service computer 10 and transforms them into signals which can be transmitted, via a second electrical link 23, to the interface V24 of the service computer 10 and processed by it. In the opposite way,

  the electrical signals of the service computer 10 are modulated and used

  to control the emission unit of the interface 12 of the

service 10.

  Different realizations of the infrared interface are shown

in Figures 3 and 4.

  FIG. 3 shows an opto-electric interface 12 of the computer

  service 10, which has an optical receiver 24 and an optical transmitter

  that 25, o is led, each time, a light guide 26 or 27. The re-

  optical sensor 24 also has an optical input, to which

  string light guide 26, and an electrical outlet, which is connected, by

  via a diode 28, to an electrical input and output connection

  that common 29 of the interface 12. The microprocessor 13 of the computer

  service 10 is connected to this electrical input and output connector 12.

  To the electrical inlet and outlet connector 29, also leads,

  via a second diode 30, the electrical input of the transmitter

  optical tor 25, at the optical output of which the second light guide 27 is connected. Between the second diode 30 and the electrical input of the optical transmitter 25, there is arranged a logic unit 31. Furthermore, the logic unit

  31 is connected to the electrical output of the optical receiver 24.

  If there is a signal on the optical receiver 24, the output signal

  electrical tie reaches, via the diode 28, the connection

  input and common output 29 of the interface 12. Furthermore, this signal is

  brought, via the second diode 30, to the logic unit 31.

  Simultaneously, the electrical output signal is supplied to the other input of the logic unit 31. As the signals supplied to the logic unit 31 are identical, the output signal from the logic unit is zero. This prevents the received signal from being transmitted again immediately, via

  from the optical transmitter 25, to the second light guide 27.

  If, in the other case, an electrical signal from the microprocessor

  stopper 13 is located on the common input and output connection 29, the signals which are brought to the logic unit 31 are no longer identical. A signal is transmitted to the input of the optical transmitter 25 and transmitted therefrom, via the light guide 27, to the interface 8 of the functional units. This interface 8 of the functional units is constructed in an equivalent manner to the interface 12 already described and likewise has a

  optical receiver 32 as well as an optical transmitter 33. The optical receiver

  32 is connected, by means of a diode 34, to the common input and output connector 35 of the interface 8, where the microprocessor 9 of the control unit 7 is connected. Also in this case, it is arranged, between the common inlet and outlet connector 35 and the optical transmitter 33, of the

  as already described, a logic unit 36 which, via a

  as diode 37 and the optical receiver 32, receives, each time, a

  general. Depending on whether the two signals are identical or not, the logic unit 36 allows the emission of a signal, via the light guide 26, at the interface 12. With this arrangement, only an electrical connection between the computer and the interface is necessary for the exchange

bidirectional data.

  If the transmitting and receiving unit is simultaneously formed by only a semiconductor diode, it is recommended to use

  the interface according to FIG. 4. In this case, the interface 8 of the functional units

  nelles and the interface 12 are constructed identically.

  In the interface 12 of the service computer 10, the semi-diode

  conductive 38 is switched by microprocessor 13, using a relay 39 and two switches 40 and 41, either as a transmitter or as a receiver. This can be achieved in a simple way in that the

  switches 40, 41 are alternately energized by the micro-

  processor 13 in the direction of passage or in the direction of blocking.

  In the current circuit of the interface 8 of the functional units 2 to 6, the semiconductor diode 42 functions as a transmission and reception circuit thanks to the microprocessor 9, in opposite direction relative to the interface 12 of the computer. service 10, using relay 43 and two

switches 44 and 45.

Claims (8)

  1. Device for wireless transmission of signals between a system   control of a printing machine, in particular a ma-   China sheetfed offset printing, and a mobile computing unit, the sys-   control unit of the printing machine consisting of several control units and each control unit being produced   for controlling and / or regulating the running of a functional unit   printing machine and for two-way data transmission   wireless connection between each control unit and the mobile computing unit, the functional units having an interface connected to the control unit, just as the mobile computing unit has an interface, and, to carry out the transmission without signal wire between the interface of the functional units and the interface of the mobile computing unit, the latter being able to be oriented towards each other,   characterized in that each interface (8) of the functional units and the in-   terface (12) of the mobile computing unit (10) consist of a transmitting and receiving unit (11, 16) for the signals to be exchanged wirelessly and of an interface electronics (15, 22), at least the transmission and reception unit (11, 16) of at least one of the interfaces (8) of the functional units and / or of the interface (12) of the mobile computing unit ( 10) being arranged spatially separate from the functional unit   corresponding (2-6) and / or the mobile computing unit (10).   2. Device according to claim 1, characterized in that the transmission and reception unit (1 1), connected to the control unit (7), of the interface (8) of the functional units is made of spatially modifiable and is connected, via an electrical connection (17), to the control unit (7) arranged in or on the functional unit (2-6).   3. Device according to claim 2, characterized in that the transmission and reception unit (11) is produced   self-adhesive for external attachment to the functional unit (2-   6). 4. Device according to claim 1, characterized in that the transmission and reception unit (16) of the mobile calculation unit (10) is arranged opposite to the transmission and reception unit.   reception (11) of the interface (8) of the functional units, the transmitting unit   and reception (16) and interface electronics (22) of the   mobile calculation (10) being fixed on the functional unit (2-6) and being re-   linked, via an electrical link (23), to the computing unit mobile (10).   5. Device according to claim 1, characterized in that, for the bidirectional data transmission between the control unit (7) of each functional unit (2-6) and the mobile calculation unit (10), the units transmission and reception (11, 16)   forming the transmission channels are made as semi-diodes   women drivers (24, 25, 32, 33, 38, 42) working in the infra-   red. 6. Device according to claim 5, characterized in that the exchange of data between the transmission unit and   reception (11) of the interface (8) of the functional units and the transmission unit   The receiving and receiving unit (16) of the mobile computing unit (10) is carried out in both directions via one and the same transmission channel, the respective semiconductor diode (38, 42) working a share like   transmitter and on the other hand as receiver.   7. Device according to claim 6, characterized in that the semiconductor diode (38) of the mobile computing unit (10) is fixed opposite to the semiconductor diode (42) of the interface (8 ) functional units on the functional unit (2-6) and is connected, via a second electrical link (19), to the interface electronics (22) arranged on or in the mobile computing (10). 8. Device for wireless transmission of signals between a system   control of a printing machine, in particular a ma-   China sheetfed offset printing, and a mobile computing unit, the sys-   control unit of the printing machine consisting of several   several control units and each control unit being produced   for controlling and / or regulating the running of a functional unit   printing machine and for two-way data transmission   wireless connection between each control unit and a calibration unit   mobile ass, the functional units having an interface connected to the control unit as well as the mobile calculation unit has a   interface, and, to achieve wireless transmission of signals between the interface   opposite the functional units and the interface of the mobile computing unit, these being able to be oriented towards each other, characterized in that the transmitting and receiving unit (11), arranged   fixed way on the functional unit (2-6), from the interface (8) of the functional units   tional and the transmitting and receiving unit (16) fixedly installed on the mobile computing unit (10) are connected together via   a light guide (19) for the transmission of wireless signals.