EP0452339A1 - Systeme de surveillance optique d'un evenement sur un tableau d'affichage - Google Patents

Systeme de surveillance optique d'un evenement sur un tableau d'affichage

Info

Publication number
EP0452339A1
EP0452339A1 EP19900900077 EP90900077A EP0452339A1 EP 0452339 A1 EP0452339 A1 EP 0452339A1 EP 19900900077 EP19900900077 EP 19900900077 EP 90900077 A EP90900077 A EP 90900077A EP 0452339 A1 EP0452339 A1 EP 0452339A1
Authority
EP
European Patent Office
Prior art keywords
mosaic
control
modules
central computer
elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19900900077
Other languages
German (de)
English (en)
Inventor
Horst Krudup
Hans-Joachim Petersen
Bernd Hohlstein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0452339A1 publication Critical patent/EP0452339A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/06—Indicating or recording the setting of track apparatus, e.g. of points, of signals
    • B61L25/08—Diagrammatic displays

Definitions

  • the invention relates to a device according to the generic concept of claim 1.
  • a device is known from DE-OS 21 35 750.
  • the indicator fields are illuminated by light-emitting diodes which are located below a track
  • Light elements should be activated.
  • the selection of the mosaic building block to be influenced is carried out via adjustable selection lines between the mosaic building blocks and the central computer. 25
  • the object of the invention is to provide a device according to the Oberbe ⁇ handle of claim 1 indicate that the mosaic blocks manages for the control and connection of the luminous elements with a minimum of effort, both in terms of comparison - 30 wiring between the computer and the mosaic blocks as also with regard to the transmission of data and which enables the control of the mosaic building blocks without individual wiring of the mosaic building blocks.
  • FIG. 1 schematically, the reporting operation of a computer-controlled signal box with the control modules assigned to the individual mosaic modules as coupling elements to the computer; in FIG. 1
  • FIG 20 D as the embodiment of FIG 1 showing a central computer or a central computer system for controlling mosaic modules Ml to Mn for the display of any Pro ⁇ zeßest.
  • the display takes place via LEDs L1.l to Ln.n in the message fields of a not shown
  • the LEDs are in one
  • the central computer works out the control instructions necessary for the display of the process events for the lighting elements of the individual mosaic modules and compiles them into command telegrams.
  • command telegram contains a number of bits, each of which is a specific LED or a specific one 1 slot is assigned in the mosaic block; the binary - • value of these bits indicates whether the associated LED should light up or not.
  • the command telegrams are transmitted 5 to the individual mosaic modules via a data line D and cause the individual switching on of the light-emitting diodes in the mosaic modules via driver circuits Tl to Tn in accordance with the control instructions contained in the command telegrams.
  • the individual driver modules are semiconductor memories, not shown in the drawing, for storing the over
  • Decoder DC1 to DCn are assigned to the mosaic building blocks for the individual control of the mosaic building blocks, the addresses of which are preceded by the command telegrams developed by the computer for the associated mosaic building blocks. For the pre
  • a computer-side encoder EC which takes the address to be called up in each case from an assignment table from which the assignment of the lighting elements to be controlled in each case to the individual mosaic modules and the associated decoder is evident. Has the central one
  • the encoder EC uses the assignment table to determine that the command telegram used to set the light-emitting diodes is to be sent to the mosaic module M2 via the decoder DC2 and it transmits the data
  • the control instructions transmitted from the central computer to the individual mosaic modules 30 are valid until they are replaced by more current instructions. Since there is no permanent connection between the computer and the mosaic modules, the transmitted control instructions are stored in semiconductor memories of the mosaic modules. The number of • 35 storage spaces depends on the number of lighting element slots on the mosaic blocks. This number is the same for all mosaic blocks.
  • a preferred embodiment sees 15 message fields for each mosaic module each with two differently colored light-emitting diodes, ie 30 light-element slots. For the control of these light-emitting diodes, a memory with a storage capacity of 32 bits is assigned to each mosaic module, via which the drivers of the 30 light-emitting diodes can be switched in accordance with the control instructions transmitted.
  • the arrangement can be such that the memories consist, for example, of four 8-bit registers, via which up to eight permanently assigned lighting elements can be controlled. If, for example, the illumination of a message field is to change, then the central computer then does not need to issue and transmit a complete command telegram for the connection of all the light-emitting diodes of the relevant mosaic module, but it is sufficient to use a shorter command telegram to only reset the register via which the control of the light-emitting diode takes place, the status of which should change. In such an embodiment of the invention, it is necessary that the central computer not only queries the assignment list for the control module to be loaded with data, but also for the register to be controlled by it, and supplements the addressing accordingly.
  • the control of the individual mosaic modules takes place in an address-oriented manner via associated decoders, galvanic connections being provided for the addresses and data transmission between the central computer and the mosaic modules.
  • FIG. 2 it is provided that a plurality of mosaic modules are jointly supplied with control instructions for the associated lighting elements from a central computer via an associated control module.
  • the central computer for controlling the mosaic blocks is represented by a so-called control computer ANSR, as it is known from the literature in connection with the
  • Control of electronic signal boxes is known.
  • This control computer prepares the control instructions for the lighting elements of the individual mosaic modules, and provides them as commands. telegrams together and transfers them to the individual mosaic blocks. The transmission takes place via a 5 converter U designed as a serial interface between the central computer and the external control switching means for the display control; this is connected to a suitable power supply SV.
  • Control modules SB1 to SBn are connected to the output of the converter. Like the decoders of the exemplary embodiment according to FIG. 1, these control modules can be controlled by the control computer by address. To the individual
  • 1 ° control modules for example, up to 16 mosaic modules Ml to Mn are connected, four mosaic modules each forming a group and connected in parallel to common clock, data and power supply lines.
  • the power supply of the. Mosaic modules is via ring lines from the l ⁇ respectively associated control module.
  • each with four mosaic building blocks in each group of mosaic building blocks two bits are required to determine the respective mosaic building block group and two bits to selectively activate the mosaic building blocks; the data transmission
  • control computer recognizes from the control instructions it has worked out, which mosaic module should execute these control instructions, on which clock and data lines this logic module is located and via which control modules
  • the control modules SB1 to SBn are preferably connected to one another via a token bus TB, via which the individual control modules are picked up one after the other 5 up to the control module from which a mosaic module is to be affected.
  • the control modules are preferably designed as microcontrollers and in each case in the vicinity of the mosaic modules to be operated from there, preferably in a housing of a mosaic module covered by an empty field
  • the semiconductor memories of the individual mosaic modules consist of several multi-stage registers.
  • control blocks are initially all of identical construction and that the central computer voran obtaineddsn in an operation Aufrilstpha ⁇ e demand the control modules - ⁇ -> each responsive and iiin ⁇ n from a stock of existing addresses, an address assigning means which the Control module is saved in each case and then the supply of the mosaic blocks with control instructions.
  • a return channel TBR from the mosaic modules via the control modules SB1 to SBn to the controlling computer. This return channel is used to send feedback telegrams from
  • the feedback telegrams are formed in a separate switching level of the mosaic modules by stringing together the potentials at the individual lighting element installation locations 1. can be tapped. The order in which the lighting element slots are queried is the same for all mosaic blocks. The feedback is given stating the addressing of register, mosaic module, mosaic module group and control module.
  • the central computer is designed as a signal-safe computer that creates the control instructions in two channels and also evaluates the feedback telegrams in two channels.
  • the feedback enables the control computer to recognize whether the lighting elements of the mosaic modules are actually switched on or not. It is assumed that the lighting elements themselves are functional, that they actually light up when there is a voltage sufficient for their operation at their input terminals; this requirement can be considered as given when using light emitting diodes.
  • Special power supply devices SV1 and SV2 are used for the power supply of the mosaic modules and the control modules, one of which is assigned to the outgoing channel and the other to the return channel.
  • the feedback on the reporting status of the lighting elements is transmitted either cyclically or at the instigation of the mosaic modules or the computer, the transmission being able to be caused, for example, by the status of a lighting element changing or changing.
  • the retransmission of the status code ⁇ boys '' takes place via separate data lines DIR to DnR and TBR between the individual mosaic modules as well as the control modules and the central computer, via which the sender addressing is also transmitted.
  • the retransmission of the current message status image to the control computer enables the control computer to output both command and message paths to a function check by outputting corresponding command telegrams to the individual mosaic modules.
  • the control computer transmits command telegrams to the individual mosaic modules, which cause the stored control instructions to be inverted there and used for retransmission. lead speaking status messages to the control computer.
  • These commands are then inverted again, as a result of which the original switching state of the lighting elements is restored.
  • the time for the temporary inverting of the control commands is to be chosen so short in a " known manner that there is no change in the display for an observer, but for the memories and drivers controlling the lighting elements, via which the feedback to the controlling computer takes place.
  • the transmission of message telegrams to the controlling computer also makes it possible to transmit information other than the aforementioned status messages to the controlling computer. For example, it is possible to place the individual mosaic building blocks next to the
  • Assign control buttons to lighting elements.
  • the respective switching state of these control buttons is tapped as a potential of one or the other value and is transmitted to the controlling computer together with the potentials tapped at other installation locations of the relevant mosaic module.
  • FIG. 4 shows an embodiment of the invention in which a secure display is achieved without the transmission of message identifiers to a controlling computer; the effort for retransferring the registration indicators is completely eliminated.
  • FIG. 4 schematically shows in the lower part a mosaic module M1, which is covered towards the observer by a template representing a track element.
  • This mosaic building block stands for any other building blocks covered by any other template and also for a group of mosaic building blocks that can be controlled together.
  • the mosaic block has 15 message fields, which are indicated by crosses. Illuminate the individual message fields below the Template-arranged lighting elements, preferably LEDs, for emitting light of different spectral colors. In the exemplary embodiment shown, a maximum of five of the 15 reporting points of the mosaic module are required for the illumination of the assumed track section. The illumination takes place in the colors green and red and yellow as a mixed color of green and red.
  • the light-emitting diodes are controlled via two control modules SB1.1 and SB1.2 assigned to the mosaic module or a group of mosaic modules. Each of these control modules has access to a first part of the lighting elements at any desired first time, while the other control module has access to the remaining lighting elements of the mosaic module or the group of mosaic modules at this time. This assignment changes so that at a second point in time the light-emitting diodes previously controlled by the control module SB1 are now controlled by the control module SB1.2 and vice versa.
  • the assignment of the light-emitting diodes to the individual control modules can be chosen arbitrarily. It can e.g. take place according to geographical aspects or also according to the color of the light-emitting diodes.
  • the two control modules receive the control instructions to be forwarded to the luminous elements of the mosaic modules from a central control computer ANSR, which is designed in a known manner as a signal-technically safe computer.
  • This computer creates the control instructions for the two control modules in two channels and continuously compares the two channels internally for correspondence.
  • the computer hides individual control instructions internally from the two-channel identical control instructions and transmits the remaining control instructions to the control modules via a switch US.
  • Figure 4 are the two
  • Control blocks output control instructions designated Ta and Tb. These control instructions complement one another in their statement on the message image to be displayed. For example, prompted 1, the control module SB1.1 controls the LEDs L1 and L2, while the control module SB1.2 controls the LEDs L3 to L5.
  • the switch US changes from switch position a to switch position b.
  • the control instructions Ta now go to the control module SB1.2, while the control instructions Tb go to the control module SB1.1.
  • the control module SBl.2 now controls the two lights
  • a frequency of approximately 1 Hertz has proven to be advantageous as the switching frequency for the changeover switch, because this causes a visually very distinctive identification of a fault.
  • the switching position of the switch can for example be read back into the safe control computer; but it is also possible to make the respective switch position optically recognizable to the observer. This can be done, for example, by the central computer being able to switch on selected lighting elements of the message board either only via one or only via the other control module. For the lighting elements in question, this has the same effect as a control fault, ie the lighting elements in question light up. alternates and then goes out again. Exclusive access to a single light element is sufficient to identify the switching process. However, it is more expedient, because it is optically striking, to alternately access selected lighting elements from both control devices, which are arranged spatially adjacent, in particular those which are set up to emit light of different colors.
  • the correct computer-internal or computer-external switching of the computer outputs can then be recognized by the observer in a color-coded message field. From the flashing of this selected message field, the observer recognizes that the display conveyed to him is actually a display from both computer channels, which is updated dynamically in time with the flashing frequency, and not a static display, as could arise if the switch is caught.
  • the flashing of the selected lighting elements can be detected not only by the observer, but also by the associated monitors, who either tap the voltages on the selected lighting elements or evaluate the light emanating from them.
  • a preferred embodiment of the device shown in Fig. 4 provides that each detection field is assigned two pairs of spatially adjacent lighting elements for emitting light of different spectral colors, and that the central computer uses the one control module to provide control instructions for all the first lighting element pairs of the detection fields to show the overall situation , while at the same time switching off via the other control module causes all other pairs of light elements and that the central computer cyclically interchanges the assignment of the control instructions to the two control modules.
  • the control instructions issued by each control module lead to completely identical representations, only offset by the distance between the pairs of lighting elements, with either one or the other lighting element pair being controlled in the individual reporting points. In the case of control errors, there is also an " optically conspicuous flashing for the lighting elements affected by the error, which can be perceived by the observer.
  • the devices described above are intended in particular for use in electronic signal boxes in the railway industry. However, they can also be used in the same way for conventional interlockings and control rooms operated in relay technology, in which a central computer takes over the control of an alarm board.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

Un tableau d'affichage est formé des plaques frontales d'éléments (M1 à Mn) agencés en mosaïque. Un ordinateur central (ANSR) donne des instructions de commande d'éléments luminescents qui se présentent sous la forme de diodes luminescentes d'un tableau d'affichage, et les transmet par télégramme à des éléments de commande (SB1 à SBn) agencés à proximité des éléments (M1 à Mn) du tableau d'affichage en mosaïque. Ces éléments de commande (SB1) sont reliés à un bus commun (TB) et sont associés chacun à un groupe d'éléments (M1 à M16) de la mosaïque. Ils sont déclenchés par adressage et transmettent aux éléments correspondants de la mosaïque les instructions de commande données par l'ordinateur central. A cet effet, l'ordinateur central tire pour chaque télégramme à envoyer les adresses des éléments en question de la mosaïque et des éléments de commande correspondants d'une liste d'attribution, qui donne la correspondance entre chaque diode luminescente à commander d'une part et les éléments de la mosaïque et les éléments de commande d'autre part. Les instructions de commande transmises sont enregistrées dans les éléments de la mosaïque et affichées.
EP19900900077 1989-01-09 1990-01-04 Systeme de surveillance optique d'un evenement sur un tableau d'affichage Withdrawn EP0452339A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3900387 1989-01-09
DE3900387 1989-01-09
DE3900388 1989-01-09
DE3900388 1989-01-09

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP19910108693 Division EP0448134A3 (en) 1989-01-09 1990-01-04 Device for the optical surveillance of an event on a signal board

Publications (1)

Publication Number Publication Date
EP0452339A1 true EP0452339A1 (fr) 1991-10-23

Family

ID=25876622

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900900077 Withdrawn EP0452339A1 (fr) 1989-01-09 1990-01-04 Systeme de surveillance optique d'un evenement sur un tableau d'affichage

Country Status (2)

Country Link
EP (1) EP0452339A1 (fr)
WO (1) WO1990007447A1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2135750A1 (de) * 1971-07-16 1973-02-01 Siemens Ag Anordnung zum zentralen ueberwachen grossflaechiger anlagen
US4438432A (en) * 1980-01-19 1984-03-20 Westinghouse Brake And Signal Company Limited Information display apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9007447A1 *

Also Published As

Publication number Publication date
WO1990007447A1 (fr) 1990-07-12

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