EP0854424A1 - Sichere Darstellung einer Bildschirmdatei - Google Patents
Sichere Darstellung einer Bildschirmdatei Download PDFInfo
- Publication number
- EP0854424A1 EP0854424A1 EP98400038A EP98400038A EP0854424A1 EP 0854424 A1 EP0854424 A1 EP 0854424A1 EP 98400038 A EP98400038 A EP 98400038A EP 98400038 A EP98400038 A EP 98400038A EP 0854424 A1 EP0854424 A1 EP 0854424A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screen
- information
- display
- displayed
- comparison
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 239000013307 optical fiber Substances 0.000 claims abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000001915 proofreading effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
- B61C17/04—Arrangement or disposition of driving cabins, footplates or engine rooms; Ventilation thereof
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
- G09G2360/147—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen the originated light output being determined for each pixel
Definitions
- the present invention relates to a system for controlling the display of information, ensuring that the information visible on a screen display are those corresponding to the data transmitted to the screen by the display control system.
- the invention applies in particular to vehicle display screens railway where information such as the target speed, the actual speed of the train etc ... are displayed to the mechanic.
- the screen must be of a absolute reliability and that the information visible on the screen is not blocked (persistent information when the display instructions have evolved by example) or incorrect.
- Document BE 902 443 describes a method for checking the presence of data or variable data accuracy of a display device versus display commands and to deactivate it when there is a discrepancy between the data and these display commands.
- the display devices include either tilting mobile pallets carrying the data to be displayed, i.e. a driven disc step by step in rotation, behind a panel with a window revealing the characters located on the disc, ie still sets of optical fibers, each set constituting a display character segment, one end of the assembly constituting a segment of character when the other end is illuminated by a light source.
- the first two systems are pre-display systems with mechanical movement, therefore bulky with risk of blocking and limiting information to pre-displayed data.
- the optical segment system is also a display system of predetermined data.
- the subject of the invention is therefore a system for displaying data on a screen comprising means for sending information to the screen, means for reading the information displayed, means for comparing the displayed information and the information from said sending means information on the screen, means to stop the display in the event of a discrepancy in the comparison, characterized in that the screen only includes the active part an electronically controlled flat screen with an active surface, electronically controlled, said means for reading the displayed information comprising an optical sensor located at the rear of said screen with respect to the front face intended to be observed by an user.
- said optical sensor is a sensor load transfer linear connected to said rear face of said screen by a network of optical fiber.
- the system includes a central speedometer 1 connected to a plurality of speed sensors. All of these sensors is represented by a single block 2.
- the power plant speedometer 1 which chooses, among the speed information coming from the sensors 2, the highest indication, provides this train speed information by two autonomous channels 3 and 4.
- the first channel 3 is directed to a video input 5 of a screen cabin 6 via a main processing unit 7 which transmits by computer network 8 speed information to a central display unit 9.
- the unit control unit 9 is connected to video input 5 and controls the display of information by screen 6.
- the second channel 4 is directed to a proofreading and control unit screen 10 which compares the speed information coming from the control panel speedometer 1 through channel 4, with speed information delivered by a sensor optics 11 which observes the screen 6 from below it, through transparency.
- the surface normal viewing of the screen being located on the other side as shown in figure one mechanic's eye 12.
- a transparent flat screen with surface active for example a microtip screen from the company Pixtech, one of which description is given in French patent 2,732,159, or a screen light emitting from Planar.
- This type of screen is used to display variable alpha-type data digital and graphical.
- These active surface screens generate their own lighting and are therefore not very sensitive to variations in lighting in the outside environment. he just change the rear cover of screens of this type available on the market, in order to insert the replay device.
- the screen 6 includes a power supply 13 including the unit for re-reading and screen control 10 commands validation by means of a relay controlled the opening in case of discrepancy between the speed information coming from the optical sensor 11 and the speed information coming from the second channel 4 of the tachometer 1.
- a check is carried out between the information display sent and the information actually displayed.
- Screen re-reading by the rear, using a transparent type active surface screen frees up completely the front panel, reserved for the observation of the mechanic and for example, bypassing a prism or bulky mirror optical system the front space and absorbing some of the light.
- Figure 2 is a particular application diagram showing only the parties directly involved in the system of proofreading, comparison and screen power control.
- the screen 6 is composed only of the active part 14 of a screen of transparent type as said above, electroluminescent or microtip, taken sandwiched between two glass plates 15 and 16.
- the information displayed is displayed on the screen in the form of a bar graph or in the form of a needle.
- a fiber optic network 17 connects the display rectangle from the bargraph (or the needle display circle) to the optical sensor 11 according to a format mechanically compatible with the sensor, here a linear transfer sensor load with rectangular window.
- the sensor 11 integrates the light received in the form charging and the exploitation of the sensor serial output is done by a simple slot detector 18 which translates the position of the bar graph or the hand.
- the output 19 of the detector 18 is sent to a comparator 20 which receives on its other input the speed information coming from channel 4 and, in case of discrepancy in the comparison, the output 21 of the comparator controls the opening of a relay 22 cutting the power supply 13 of the screen, of its connection input 23.
- the supply 13, in addition to the screen 6 supplies a circuit 24 for adapting the video signal to which the video input 25 from the channel 3 of figure 1.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Circuits Of Receivers In General (AREA)
- Selective Calling Equipment (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Controls And Circuits For Display Device (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Alarm Systems (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Memory System Of A Hierarchy Structure (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9700536A FR2758642B1 (fr) | 1997-01-20 | 1997-01-20 | Systeme pour le controle de l'affichage d'une information |
| FR9700536 | 1997-01-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0854424A1 true EP0854424A1 (de) | 1998-07-22 |
| EP0854424B1 EP0854424B1 (de) | 2003-05-14 |
Family
ID=9502765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98400038A Expired - Lifetime EP0854424B1 (de) | 1997-01-20 | 1998-01-12 | Sichere Darstellung einer Bildschirmdatei |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0854424B1 (de) |
| AT (1) | ATE240552T1 (de) |
| DE (1) | DE69814481T2 (de) |
| DK (1) | DK0854424T3 (de) |
| ES (1) | ES2198660T3 (de) |
| FR (1) | FR2758642B1 (de) |
| PT (1) | PT854424E (de) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2868193A1 (fr) * | 2004-03-26 | 2005-09-30 | Boisdequin Bernard | Procede et dispositif d'affichage d'au moins un signe representatif d'une valeur de consigne sur un dispositif de visualisation a ecran sans effet de remanence |
| WO2005124685A1 (en) * | 2004-06-14 | 2005-12-29 | Honeywell International Inc. | Image monitoring method and system |
| WO2006003919A1 (ja) | 2004-07-06 | 2006-01-12 | Arkray, Inc. | 液晶表示装置およびこれを備えた分析装置 |
| FR2908225A1 (fr) * | 2006-11-02 | 2008-05-09 | Bernard Boisdequin | Procede d'affichage numerique d'au moins un signe representatif d'une valeur de consigne sur un dispositif de visualisation a ecran couleur sans effet de remanence |
| EP2159781A1 (de) * | 2008-08-28 | 2010-03-03 | Continental Automotive GmbH | Verfahren und Vorrichtung zur Erkennung mindestens eines Symbols, das als eine Punktmatrix angezeigt ist |
| WO2015082331A1 (de) * | 2013-12-04 | 2015-06-11 | Siemens Aktiengesellschaft | Bedienanordnung für den führerraum eines schienenfahrzeugs |
| EP3079141A1 (de) * | 2015-04-08 | 2016-10-12 | Delphi Technologies, Inc. | Transparente lichtmessvorrichtung, insbesondere für eine elektronische anzeigevorrichtung und verfahren zur überwachung einer elektronischen anzeige |
| IT202200006290A1 (it) * | 2022-03-30 | 2023-09-30 | Hitachi Rail Sts S P A | Gruppo di verifica, per verificare l'attendibilita' di informazioni di veicolo visibili su uno schermo video, in particolare per un veicolo su rotaia |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2149628A (en) * | 1983-10-24 | 1985-06-12 | London Regional Transport | Visual data display system |
| BE902443A (fr) * | 1985-05-15 | 1985-09-02 | Hard & Soft Engineering | Procede pour verifier les donnees d'un dispositif d'affichage et dispositif d'affichage mettant en oeuvre ledit procede. |
| US5160920A (en) * | 1990-12-07 | 1992-11-03 | International Business Machines Corporation | Fail safe display for shelf labels |
| FR2732159A1 (fr) * | 1995-03-22 | 1996-09-27 | Pixtech Sa | Ecran plat de visualisation a double grille |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5175772A (en) * | 1991-01-02 | 1992-12-29 | Motorola, Inc. | Automated test for displays using display patterns |
-
1997
- 1997-01-20 FR FR9700536A patent/FR2758642B1/fr not_active Expired - Fee Related
-
1998
- 1998-01-12 EP EP98400038A patent/EP0854424B1/de not_active Expired - Lifetime
- 1998-01-12 ES ES98400038T patent/ES2198660T3/es not_active Expired - Lifetime
- 1998-01-12 DE DE69814481T patent/DE69814481T2/de not_active Expired - Lifetime
- 1998-01-12 AT AT98400038T patent/ATE240552T1/de not_active IP Right Cessation
- 1998-01-12 DK DK98400038T patent/DK0854424T3/da active
- 1998-01-12 PT PT98400038T patent/PT854424E/pt unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2149628A (en) * | 1983-10-24 | 1985-06-12 | London Regional Transport | Visual data display system |
| BE902443A (fr) * | 1985-05-15 | 1985-09-02 | Hard & Soft Engineering | Procede pour verifier les donnees d'un dispositif d'affichage et dispositif d'affichage mettant en oeuvre ledit procede. |
| US5160920A (en) * | 1990-12-07 | 1992-11-03 | International Business Machines Corporation | Fail safe display for shelf labels |
| FR2732159A1 (fr) * | 1995-03-22 | 1996-09-27 | Pixtech Sa | Ecran plat de visualisation a double grille |
Non-Patent Citations (1)
| Title |
|---|
| W T PARKMAN: "THE DRIVER'S DISPLAY ASSOCIATED WITH THE SPEED ADVISORY SYSTEM OF THE ADVANCED PASSENGER TRAIN", INTERNATIONAL CONFERENCE ON DISPLAYS FOR MAN-MACHINE SYSTEMS, 4 April 1977 (1977-04-04), LANCASTER, UK, pages 110 - 112, XP002059094 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2868193A1 (fr) * | 2004-03-26 | 2005-09-30 | Boisdequin Bernard | Procede et dispositif d'affichage d'au moins un signe representatif d'une valeur de consigne sur un dispositif de visualisation a ecran sans effet de remanence |
| WO2005124685A1 (en) * | 2004-06-14 | 2005-12-29 | Honeywell International Inc. | Image monitoring method and system |
| WO2006003919A1 (ja) | 2004-07-06 | 2006-01-12 | Arkray, Inc. | 液晶表示装置およびこれを備えた分析装置 |
| EP1783536A4 (de) * | 2004-07-06 | 2008-05-21 | Arkray Inc | Flüssigkristallanzeige und damit ausgestatteter analysator |
| US7719303B2 (en) | 2004-07-06 | 2010-05-18 | Arkray, Inc. | Liquid crystal display device and analysis device including the same |
| FR2908225A1 (fr) * | 2006-11-02 | 2008-05-09 | Bernard Boisdequin | Procede d'affichage numerique d'au moins un signe representatif d'une valeur de consigne sur un dispositif de visualisation a ecran couleur sans effet de remanence |
| EP2159781A1 (de) * | 2008-08-28 | 2010-03-03 | Continental Automotive GmbH | Verfahren und Vorrichtung zur Erkennung mindestens eines Symbols, das als eine Punktmatrix angezeigt ist |
| WO2015082331A1 (de) * | 2013-12-04 | 2015-06-11 | Siemens Aktiengesellschaft | Bedienanordnung für den führerraum eines schienenfahrzeugs |
| EP3079141A1 (de) * | 2015-04-08 | 2016-10-12 | Delphi Technologies, Inc. | Transparente lichtmessvorrichtung, insbesondere für eine elektronische anzeigevorrichtung und verfahren zur überwachung einer elektronischen anzeige |
| IT202200006290A1 (it) * | 2022-03-30 | 2023-09-30 | Hitachi Rail Sts S P A | Gruppo di verifica, per verificare l'attendibilita' di informazioni di veicolo visibili su uno schermo video, in particolare per un veicolo su rotaia |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69814481T2 (de) | 2004-04-01 |
| DK0854424T3 (da) | 2003-09-15 |
| ATE240552T1 (de) | 2003-05-15 |
| DE69814481D1 (de) | 2003-06-18 |
| EP0854424B1 (de) | 2003-05-14 |
| ES2198660T3 (es) | 2004-02-01 |
| FR2758642B1 (fr) | 1999-02-26 |
| PT854424E (pt) | 2003-08-29 |
| FR2758642A1 (fr) | 1998-07-24 |
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