EP0419990A2 - Système d'affichage d'informations pour intérieurs et son utilisation pour systèmes de transport, en particulier pour chemins de fer - Google Patents

Système d'affichage d'informations pour intérieurs et son utilisation pour systèmes de transport, en particulier pour chemins de fer Download PDF

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Publication number
EP0419990A2
EP0419990A2 EP90117840A EP90117840A EP0419990A2 EP 0419990 A2 EP0419990 A2 EP 0419990A2 EP 90117840 A EP90117840 A EP 90117840A EP 90117840 A EP90117840 A EP 90117840A EP 0419990 A2 EP0419990 A2 EP 0419990A2
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EP
European Patent Office
Prior art keywords
data
modules
information display
display system
information
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Withdrawn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
EP90117840A
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German (de)
English (en)
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EP0419990A3 (en
Inventor
Volker Goltz
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.)
Ascom Zelcom AG
Original Assignee
Ascom Zelcom AG
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 Ascom Zelcom AG filed Critical Ascom Zelcom AG
Publication of EP0419990A2 publication Critical patent/EP0419990A2/fr
Publication of EP0419990A3 publication Critical patent/EP0419990A3/de
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

Definitions

  • the present invention relates to an information display system for interiors, with a central control device and with a plurality of information carriers provided at different locations.
  • Such systems are used for the display of control and monitoring information within stationary rooms, such as buildings and the like, or within mobile rooms, such as railroad cars.
  • the information carriers are, on the one hand, the boards for the wagon running display, these are signs and boards with details of the larger stations of the course in question, which are inserted into a corresponding holder inside and outside of each wagon, and, on the other hand, space reservation labels on the individual Squares.
  • the passenger makes a reservation at the departure station. These Reservations are entered and saved directly or indirectly in a rail reservation system. After the reservation has been made, the passenger receives a confirmation with the travel date, train number, wagon number and seat number. To mark the reserved space, a reservation slip in the form of a label is created in the respective exit station, which must be attached by one person to the right place of the right car in the right train. Such a receipt must be created and attached for each reserved space.
  • the information carriers are formed by electronically controllable display modules which are connected to the control unit via a feed and communication line formed by a two-wire line, in that the system is designed for bidirectional data traffic between the control unit and the modules, and that the modules are powered via the control unit.
  • the system according to the invention is therefore an electronic system for displaying various information in connection with control and monitoring functions within rooms, buildings, and the like, and for the preparation and distribution of this information.
  • a feed and communication line is provided, to which various input and output modules are connected. This strand transmits the data information in both directions and enables that Remote supply of the modules.
  • the central supply and control unit (string processor) periodically polls the connected modules, each module being able to return information to the string processor.
  • the data can be processed, linked, terminated and forwarded using the line processor.
  • the invention further relates to an application of the system mentioned for transport systems, in particular for railways.
  • This application is characterized by modules arranged in the individual railway carriages for displaying railway-specific data and information, such as seat reservations, timetable data and the like.
  • a carriage W from a series of railway carriages is symbolically shown, in which an information display system for seat reservations and carriage running is installed.
  • this information display system consists of a central supply and control device 1 and a two-wire line (strand) 2, 3 connected to it, via which a number of display modules 4 to 6 is operated.
  • the maximum number of display modules that can be connected to a common central power supply and control unit 1 is in itself arbitrary and is only limited by its power consumption.
  • the display modules can be largely optimized in size and appearance and adapted to requirements.
  • the following types of display modules are conceivable: reservation displays for single seats and combinations of two (for open wagons), reservation displays for six-seat compartments, portable reservation displays for open-plan compartments or entire wagons, carriage play boards for interior displays and carriage play boards for outdoor displays.
  • Plain text displays are preferably used, so that there is no restriction on the information to be displayed on the display modules. Only the number of characters per line and the number of lines per module is specified. In order to avoid any problems with country-specific special characters, the railway information is usually shown in capital letters.
  • the display modules are equipped with LCD displays, which enables a power supply via the line. Smaller modules can be equipped with a backlight, for example with LEDs, without the need for additional power. Larger modules, such as those for the carriage run and here again those for the exterior display, are provided with separate lighting, which, however, is not fed via line 2, 3.
  • Each display module in the system has its own microprocessor that controls data transmission and display functions. This makes the entire system very flexible and can largely be adapted to the respective purpose.
  • FIG. 2 shows a reservation display 4 for individual places and combinations of two
  • FIG. 3 shows a reservation display 5 for six-seat compartments
  • FIG. 4 shows a carriage run display 6.
  • the reservation displays 4 and 5 only differ in the number of lines of the display field, the reservation display 4 for a maximum of two places has four lines, the reservation display 5 for a six-seat compartment has eight lines. Two or six lines are required to display the current reservation, two lines are available for further information such as the date, wagon number, next schedule stop and its time.
  • modules 4 and 5 have a call button 7 for the train attendant or the seat service.
  • the modules can also be provided with lighting.
  • the wagon running display 6 shown in FIG. 4, which is intended for use inside the wagon, is mounted on the front wagon entrances, preferably in an elevated position, so that the passengers can see the display 6 and thus check the wagon running and wagon number.
  • a smaller version of the carriage running display 6 can be used as a control display for the central storage and control device 1 (see FIG. 5).
  • a larger version of the carriage running display 6, preferably one with separate lighting, is mounted on the carriage so that it is visible from the outside and thus serves as a carriage running board for the outside display.
  • the central supply and control device 1 which is required for the power supply of the display modules and for data transmission to them and contains as main part a microprocessor which controls the data transmission to the modules, the monitoring of the system and the transfer of the operating data.
  • the power supply and control unit 1 which is connected to the vehicle electrical system via a power supply input 8 of the car is connected, has a communication interface 9 for reading in and modifying the operating data and an acknowledgment button 10 and is combined with a car running display 6.
  • the feed and control device 1 stores the reservation and timetable data read in for normal operation via the communication interface 9, the data being read in at the departure station.
  • the schedule data (in particular the display of the next stop, see FIGS. 2, 3) is normally updated via the acknowledgment key 10, with which the stops can be acknowledged.
  • the communication interface 9 serves to connect a transfer device 11 (FIG. 6) for the input of data into the information display system.
  • the transfer device 11 is a portable data storage device, for example a so-called hand-held computer, which can also be used for other operational tasks of the train attendant.
  • the data are copied from the transfer device 11 into the information display system and stored in the central feed and control device 1. After the data have been read in, the transfer device 11 can be removed again, but is available at any time for possible mutations during the journey.
  • the central power supply and control device 1 can with additional modules for connecting several information display systems described type and be equipped with additional modules for additional functions. Such functions would be, for example, controlling the air conditioning system and / or the lighting, and monitoring and locking the doors.
  • the individual components of the information display system are interconnected via a two-wire bus or line 2, 3, via which the supply and data information are supplied to the individual modules.
  • the data are superimposed on the supply voltage according to the principle shown in FIG. 7.
  • Fig. 7 shows a diagram on the ordinate of current or voltage in the strand 2, 3 and on the abscissa the time t is plotted.
  • Line a shows the current or voltage curve in the line
  • line b the transmission data line module (message)
  • line c the transmission data module line (response).
  • the power supply can be superimposed on a data transmission with transmission rates up to 19.2 kb / s.
  • the transmission is preferably asynchronous and in the half-duplex method, a message from the control unit to the modules being generated by increasing the current at constant load and the response in the opposite direction being generated by increasing a module load.
  • the prerequisite for this method of data transmission is that the set base current does not change significantly during the transmission.
  • the basic setting must be kept at the previously set value GE during the transmission. This can be done by setting the current through the processor of the control unit via a digital / analog converter or through an analog hold circuit in the control circuit for the basic current. The greatest length of the message is determined by the change in the base current during the transmission.
  • the load of the addressed module is increased during the transmission of the response in accordance with the content of its data. Because usually the information content of a response to the tax authority guesses will be much less than that of a message from this, the response can be transmitted more slowly and thus the transmission security can be improved.
  • the preset current GE must also remain constant during the transmission of the answer; if necessary, a defined pause D can be inserted between the message and the reply to correct the basic current setting. During this correction, which usually only takes place after a longer data traffic on the line, there is of course no data traffic.
  • the data transmission speed can be adapted to the conditions of the overall system.
  • a simple procedure can proceed as follows: After the supply has been created and the supply system has been stabilized for the first time, all modules are queried with a low transmission rate. The number of connected modules and any duplicate assignments (individual module addresses) can be determined from the answers. If no irregularities are found, the same polling cycle can be carried out with a higher transmission rate. This process can be repeated as often as the transmission speed increases until errors are detected or reported. Then the control processor can set a transfer rate for the normal Stop operation with a sufficient safety deduction. If the described process is initialized even with larger deviations in the preset supply current, system changes can be automatically recorded and corrected. In addition, the current change mentioned can also be used as an indicator for determining faults.
  • the protocol used depends primarily on the type, length, frequency and transmission security in the system.
  • the protocol In the simplest case, the protocol must contain so much redundant information that the system still works safely even in a disturbed environment. At the same time, it should enable a reaction speed corresponding to the application. For this reason, different protocol processing procedures are provided. If, for example, byte-by-byte coding is used, each asynchronously transmitted byte is provided with a start bit, at least one stop bit and, optionally, a parity bit for transmission.
  • the protocol Since the protocol has no fixed length, the operating mode and the nominal length of the information are encoded in the header of the message.
  • the header information is transmitted twice in succession, first in inverted and then in normal form. This enables simplified synchronization of the receivers.
  • the content of the subsequent bytes is determined by the header coding.
  • the "header” follows the "address", which is a coding of the module address of the module to be addressed or a group addressing or a coding for a general message to all modules, such as schedule or service information.
  • the actual "command” is used to trigger a specific reaction at the receiving module, which can be supplemented by parameter bytes to increase flexibility.
  • a length-variable method is used for the data transmission, with a "block” byte, which is an automatically generated number that serves as an indicator in the event of an error in the data transmission, and with information "length” to indicate the number of data with it Block transmitted bytes. Finally, a test byte or word (“check”) is transmitted, which is formed over all transmitted bytes except the inverted header byte and check and is used for error detection.
  • the following types of information can be transmitted in the response: "Status” information which is sent out after each selective addressing following the receipt of "Check”. This means that the control processor receives information about the status of the module after each direct response to a module. "Error” informs the control processor during the group transmission if the preceding message has not been understood correctly for every module addressed. If a module detects a transmission error in group operation, this is signaled by increasing the load following the message. The data transmitter of the module is switched on for a certain time. In this way, several modules can report a transmission error at the same time.
  • the actual data transfer from the module to the control unit takes place only after a selective request from the control processor.
  • the presence of data for transmission at a module is coded in the "status". Because normally only a small amount of data is to be transferred from the module to the control unit If the addressing of the modules is selective, only an acknowledgment of receipt is required, the status information of the module being used as the acknowledgment. As a result, the status of the system can be mapped in the control processor with little effort.
  • the transmission method described enables very low power consumption. Because the clear signaling of the transmission direction based on the voltage rise on the line, caused by the current increase in the control unit, the modules can be "woken up" each time a new message sequence is started by the control processor.
  • FIG. 8 shows a block diagram of the part of control unit 1 responsible for the operation of line 2, 3, which is referred to below as line component. This supplies the connected string with the supply for the modules concerned and superimposes the data signals in the transmission direction on the supply. The received data are also extracted.
  • the line component of control unit 1 contains a bipolar voltage reference 12, a digital / analog converter 13, a voltage-controlled current source 14, a current-controlled current source 15 for supplying power to the modules, a voltage-controlled current sink 16 and one Window comparator FK, each with an analog comparator 17 and 18 for a lower or upper threshold.
  • the strand component is connected to a processor system PS for control, data transmission and reception, wherein a processor system PS can control several strand components.
  • the window comparator FK can, as indicated by dashed lines in FIG. 8, be replaced by an analog / digital converter ADC, the threshold then being detected by software differentiation in the processor system PS.
  • the processor system PS After switching on, the processor system PS changes the current in the string 2, 3 via the digital / analog converter 13 until the voltage lies within the window formed by the comparators 17, 18.
  • the current for the strand feed is supplied by the current source 15, which is set by the D / A converter 13 via the voltage-controlled current source 14.
  • the latter drives the current source 15 with a small current which is proportional to the output voltage of the D / A converter 13.
  • the D / A converter 13 controls the current sink 16, which is switched off and on by the processor system PS via a line 19 for data transmission.
  • the current sink 16 loads the current source 15 in the idle state with approximately 5% to 10% of the current supplied by the current source 15.
  • the processor system PS switches off the current sink 16
  • the current in the branches 2, 3 is increased by this value and the active part of a data signal can now be used the continuous feed are superimposed.
  • the switched-on state of the current sink 16 corresponds to the passive part of the data signal. In this way, the data signal to be sent, ie the message, is superimposed on the line.
  • the answer is transmitted by increasing the load of the addressed module in the line.
  • the corresponding voltage drop at the line input is detected by the window comparator FK or by the analog / digital converter ADC and by software differentiation, whereby depending on the polarity of the input voltage relative to the reference 12, a logic signal is delivered to the processor system PS, which uses these logic signals as Evaluates response data.
  • the data signal can be received with the current sink 16 switched on or off.
  • FIG. 9 shows a circuit diagram of the parts of a module required for the functions described.
  • these include a rectifier 20 as protection against polarity reversal, a constant current source 21 for supplying the module, a shunt regulator 22 for keeping the supply voltage of the module constant, a data receiver 23 for converting the analog data signal, a data transmitter 24 with a Darlington transistor for increasing the module load, a microprocessor uP for controlling the module, a display 25 for displaying information and an input stage 26 for inputs on the module.
  • This input The stage can of course also be any sensor or detector that monitors a certain size and, if necessary, reports corresponding signals or alarms to the control unit. This possibility of entering signals, information and / or alarms into the modules, whether by hand or automatically by means of a corresponding sensor, and of their transmission to the control unit via the line is an essential feature of the system described.
  • Each module receives a defined and largely constant current from line 2, 3. This ensures that a large number of modules can be operated on the line.
  • the basic power requirement of all modules is set by the control unit. Without a data signal on the string, certain voltages occur on the module. When the current in the string increases, the voltage on the string increases, since the total consumption of all modules remains almost constant. This rise in voltage is recognized by the data receiver 23 and converted into a logic signal for the active state, which is forwarded via a line 27 to the microprocessor uP, which in turn reconstructs the message from the sequence of these logic signals.
  • the microprocessor uP processes the received messages and outputs them on the display 25, for example.
  • the microprocessor uP switches the data transmitter 24 of the module on and off via a line 28.
  • the active data signal turns off the MOS transistor of the Darlington circuit, which thereby becomes conductive.
  • the transistor is negative-coupled, which ensures sufficient residual voltage to supply the modules on the string, even if several modules are transmitting at the same time.
  • the transistor must have sufficient power dissipation for this type of transmission.
  • the individual display modules have the same basic structure and are configured for the intended purpose before they are used for the first time. With this configuration, the addresses for the seats and the car serial number are saved. The actual wagon number of the respective train and the train number are entered on the central memory and control unit, so that a logical assignment can be made at any time for any train combination.
  • the central supply and control devices are powered by the car batteries. This eliminates various expenses for the power supply of the display modules.
  • the feed and control devices of the individual carriages can be connected to each other, so that the system can be controlled for the whole train from any control device. If in System schedule data and other service information are disseminated, the simplest mutations, such as acknowledgment of stations and train delays, can be made to any control unit.
  • the accompanying personnel also have the option of making additional modifications via transfer device 11 and communication interface 9 (FIGS. 6, 5). Since data can also be read out via the communication interface, the system also allows operating data acquisition.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
EP19900117840 1989-09-28 1990-09-17 Information display system for inner spaces and its application to transport systems, particularly to railways Withdrawn EP0419990A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH358589A CH679617A5 (fr) 1989-09-28 1989-09-28
CH3585/89 1989-09-28

Publications (2)

Publication Number Publication Date
EP0419990A2 true EP0419990A2 (fr) 1991-04-03
EP0419990A3 EP0419990A3 (en) 1991-10-23

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Application Number Title Priority Date Filing Date
EP19900117840 Withdrawn EP0419990A3 (en) 1989-09-28 1990-09-17 Information display system for inner spaces and its application to transport systems, particularly to railways

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EP (1) EP0419990A3 (fr)
CH (1) CH679617A5 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0659625A1 (fr) * 1993-12-27 1995-06-28 AEG Sensorsysteme GmbH Dispositif d'affichage de réservation des sièges
EP0698872A1 (fr) * 1994-08-22 1996-02-28 MAN Technologie Aktiengesellschaft Arrangement d'affichage
EP0757948A1 (fr) * 1995-08-08 1997-02-12 Robert Bosch Gmbh Dispositif pour le marquage des réservations dans un système d'offre des sièges
DE29616919U1 (de) * 1996-09-27 1997-10-30 Siemens AG, 80333 München Graphische Bedieneinrichtung zur Anzeige- und/oder Steuerung der Belegung von Plätzen in einem Verkehrsmittel
RU2133056C1 (ru) * 1998-01-19 1999-07-10 Закрытое акционерное общество Фирма "Котлин" Система визуального воспроизведения информации
RU2133508C1 (ru) * 1998-01-26 1999-07-20 Закрытое акционерное общество "Фирма "КОТЛИН" Информационная система
RU2133496C1 (ru) * 1998-01-19 1999-07-20 Закрытое акционерное общество "Фирма "КОТЛИН" Система визуального воспроизведения информации с дистанционным управлением
RU2141690C1 (ru) * 1998-03-24 1999-11-20 Закрытое акционерное общество "Фирма "КОТЛИН" Информационная система для обслуживания транспортной коммуникации
RU2158967C2 (ru) * 1998-07-03 2000-11-10 Закрытое акционерное общество "Фирма "КОТЛИН" Система для передачи информации
GB2352553A (en) * 1999-07-23 2001-01-31 William John Halliday Display of seat reservations
RU2344552C1 (ru) * 2007-04-04 2009-01-20 Открытое акционерное общество "Российские железные дороги" (ОАО "РЖД") Устройство технологической радиосвязи при использовании волоконно-оптических систем передачи на железнодорожном транспорте
RU2509376C1 (ru) * 2012-09-28 2014-03-10 Общество с ограниченной ответственностью "Технологическая лаборатория" Мобильный пункт перронного контроля
DE102013205864A1 (de) * 2013-04-03 2014-10-09 Siemens Aktiengesellschaft Messumformer zur Prozessinstrumentierung und Verfahren zur Überwachung des Zustands dessen Sensors

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2129309C1 (ru) * 1997-05-28 1999-04-20 Акционерное общество закрытого типа Фирма "Котлин" Система визуального воспроизведения рекламной информации

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Publication number Priority date Publication date Assignee Title
DE2558374C2 (de) * 1975-12-23 1981-09-24 Siemens AG, 1000 Berlin und 8000 München Fernwirkeinrichtung zur Übermittlung von Fernwirksignalen mit Hilfe von Impulstelegrammen
FR2509889A1 (fr) * 1981-07-17 1983-01-21 Asulab Sa Installation de collecte de donnees
GB8510410D0 (en) * 1985-04-24 1985-06-26 Fords Ltd Multiple display system
CH674275A5 (fr) * 1987-07-15 1990-05-15 Zellweger Telecomm Ag

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0659625A1 (fr) * 1993-12-27 1995-06-28 AEG Sensorsysteme GmbH Dispositif d'affichage de réservation des sièges
EP0698872A1 (fr) * 1994-08-22 1996-02-28 MAN Technologie Aktiengesellschaft Arrangement d'affichage
EP0757948A1 (fr) * 1995-08-08 1997-02-12 Robert Bosch Gmbh Dispositif pour le marquage des réservations dans un système d'offre des sièges
DE29616919U1 (de) * 1996-09-27 1997-10-30 Siemens AG, 80333 München Graphische Bedieneinrichtung zur Anzeige- und/oder Steuerung der Belegung von Plätzen in einem Verkehrsmittel
RU2133496C1 (ru) * 1998-01-19 1999-07-20 Закрытое акционерное общество "Фирма "КОТЛИН" Система визуального воспроизведения информации с дистанционным управлением
RU2133056C1 (ru) * 1998-01-19 1999-07-10 Закрытое акционерное общество Фирма "Котлин" Система визуального воспроизведения информации
RU2133508C1 (ru) * 1998-01-26 1999-07-20 Закрытое акционерное общество "Фирма "КОТЛИН" Информационная система
RU2141690C1 (ru) * 1998-03-24 1999-11-20 Закрытое акционерное общество "Фирма "КОТЛИН" Информационная система для обслуживания транспортной коммуникации
RU2158967C2 (ru) * 1998-07-03 2000-11-10 Закрытое акционерное общество "Фирма "КОТЛИН" Система для передачи информации
GB2352553A (en) * 1999-07-23 2001-01-31 William John Halliday Display of seat reservations
RU2344552C1 (ru) * 2007-04-04 2009-01-20 Открытое акционерное общество "Российские железные дороги" (ОАО "РЖД") Устройство технологической радиосвязи при использовании волоконно-оптических систем передачи на железнодорожном транспорте
RU2509376C1 (ru) * 2012-09-28 2014-03-10 Общество с ограниченной ответственностью "Технологическая лаборатория" Мобильный пункт перронного контроля
DE102013205864A1 (de) * 2013-04-03 2014-10-09 Siemens Aktiengesellschaft Messumformer zur Prozessinstrumentierung und Verfahren zur Überwachung des Zustands dessen Sensors
US9435672B2 (en) 2013-04-03 2016-09-06 Siemens Aktiengesellschaft Measurement transducer for process instrumentation, and method for monitoring the state of its sensor

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Publication number Publication date
EP0419990A3 (en) 1991-10-23
CH679617A5 (fr) 1992-03-13

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