ES2394696B1 - WATER LEVEL DETECTOR SYSTEM ON RAILWAYS - Google Patents
WATER LEVEL DETECTOR SYSTEM ON RAILWAYS Download PDFInfo
- Publication number
- ES2394696B1 ES2394696B1 ES201031825A ES201031825A ES2394696B1 ES 2394696 B1 ES2394696 B1 ES 2394696B1 ES 201031825 A ES201031825 A ES 201031825A ES 201031825 A ES201031825 A ES 201031825A ES 2394696 B1 ES2394696 B1 ES 2394696B1
- Authority
- ES
- Spain
- Prior art keywords
- sensors
- railway
- level
- ballast
- rail
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 238000006424 Flood reaction Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 2
- 230000003213 activating effect Effects 0.000 claims 1
- 239000003643 water by type Substances 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
- B61L23/042—Track changes detection
- B61L23/048—Road bed changes, e.g. road bed erosion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
Sistema detector de nivel de agua en vías de ferrocarril.#El sistema consiste en instalar sobre cada uno de los postes (3) de catenaria (4) correspondientes a una vía de ferrocarril, sensores (5, 6 y 7), a distintos niveles, y bajo el propio carril (1) del ferrocarril, situándose los sensores (5) a un nivel inmediatamente por debajo del carril (1), los sensores (6) a un nivel intermedio y los sensores (7) a un nivel inferior, de manera que en este nivel inferior se ha previsto igualmente, en cada poste (3), un sensor de impacto o de vibración (8), y en correspondencia con una zona situada por debajo del nivel de los sensores (5), un autómata programable (9), de manera que los sensores que van detectando niveles de agua desde abajo hacia arriba, van activando alarmas que indicarán en cada momento y en tiempo real tanto el nivel de agua en el balasto (2), como si existe o no desplazamiento de dicho balasto (2).Water level detector system on railway tracks. # The system consists of installing on each of the catenary posts (3) (4) corresponding to a railway track, sensors (5, 6 and 7), at different levels , and under the rail (1) of the railway itself, the sensors (5) being located at a level immediately below the rail (1), the sensors (6) at an intermediate level and the sensors (7) at a lower level, so that at this lower level, an impact or vibration sensor (8) is also provided on each post (3), and in correspondence with an area below the level of the sensors (5), an automaton programmable (9), so that the sensors that detect water levels from the bottom up, activate alarms that will indicate in each moment and in real time both the level of water in the ballast (2), as if it exists or not displacement of said ballast (2).
Description
- SISTEMA DETECTOR DE NIVEL DE AGUA EN VÍAS DE FERROCARRIL WATER LEVEL DETECTOR SYSTEM ON RAILWAYS
- 5 5
- OBJETO DE LA INVENCIÓN OBJECT OF THE INVENTION
- 1 O 15 20 1 or 15 20
- La presente invención se refiere a un sistema detector de nivel de agua en vías de ferrocarril, constituyendo lo que es considerado como un sistema abierto y escalable, cuya evidente finalidad es la de detectar posibles riadas o inundaciones que se pudieran estar produciendo en tramos determinados de una vía de ferrocarril y que pudieran desplazar el balasto portante del propio ferrocarril. El objeto de la invención es detectar en tiempo real las riadas o inundaciones que se pudieran producir sobre la plataforma del trazado de la correspondiente línea de un ferrocarril, pudiendo obrar en consecuencia de forma inmediata ante un nivel de alarma detectado. Mediante el sistema, todas las zonas que orográficamente son propensas al tipo de fenómenos de riadas o inundaciones, pueden estar vigiladas desde el correspondiente puesto de mando o centro regional de control, y siempre en tiempo real. The present invention relates to a water level detection system on railroad tracks, constituting what is considered an open and scalable system, whose obvious purpose is to detect possible floods or floods that could be occurring in certain sections of a railroad track and that could displace the bearing ballast of the railroad itself. The object of the invention is to detect in real time the floods or floods that could occur on the platform of the layout of the corresponding line of a railroad, being able to act accordingly immediately before a detected alarm level. Through the system, all areas that are orographically prone to flood or flood phenomena can be monitored from the corresponding command post or regional control center, and always in real time.
- 25 25
- ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION
- Dada la importancia que están tomando las redes de trasporte de gran capacidad y velocidad terrestres, bien sean autovías o autopistas, o las líneas de alta velocidad, en las que se centra la invención, aunque es Given the importance that land transport networks of great capacity and speed are taking, whether they are highways or highways, or high-speed lines, on which the invention focuses, although it is
extrapolable a todas las líneas de ferrocarril, y sus compromisos de seguridad, fiabilidad y puntualidad, que son altamente selectivos para este medio de trasporte, también se conoce que existen fenómenos atmosféricos no controlados e imprevisibles que pueden descargar gran cantidad de agua en un punto concreto de un trazado, dejando el tramo parcial o totalmente inhábil en cuestión de minutos. Este hecho aislado no tendría importancia si desde el punto de vista de seguridad se conociera en que punto y momento se está produciendo este fenómeno. Extrapolable to all railway lines, and their safety, reliability and punctuality commitments, which are highly selective for this means of transportation, it is also known that there are uncontrolled and unpredictable atmospheric phenomena that can discharge large amounts of water at a specific point. of a path, leaving the section partially or totally non-working in a matter of minutes. This isolated fact would not matter if from the security point of view it was known at what point and moment this phenomenon is occurring.
DESCRIPCIÓN DE LA INVENCIÓN DESCRIPTION OF THE INVENTION
El sistema que se preconiza ha sido previsto precisamente para controlar en espacio y tiempo real las variables comentadas en el apartado anterior, pudiendo obrar en consecuencia antes de que haya que lamentar pérdidas humanas y materiales, que por otro lado son inevitables si el estado del trazado no es supervisado, ya que dadas las velocidades y masas que se desarrollan actualmente, no es posible detener un tren en la distancia de visión de un obstáculo. The system that has been recommended has been precisely designed to control the variables mentioned in the previous section in real time and space, and can act accordingly before it is necessary to regret human and material losses, which on the other hand are unavoidable if the state of the layout it is not supervised, since given the speeds and masses that are currently developing, it is not possible to stop a train in the viewing distance of an obstacle.
Mas concretamente, el sistema de la invención se basa en instalar a distintas alturas en los correspondientes postes de la catenaria, sondas de nivel, así como un detector de impactos y vibraciones, todo ello complementado con un autómata programable que gestiona cada tramo vigilado, y un sistema que integra las señales de alarma en el actual sistema de comunicaciones. More specifically, the system of the invention is based on installing at different heights in the corresponding catenary posts, level probes, as well as an impact and vibration detector, all complemented by a programmable automaton that manages each monitored section, and a system that integrates the alarm signals in the current communications system.
Uno de los sensores estará situado en correspondencia con la parte inferior de los correspondientes carriles del ferrocarril, estando otro de los
One of the sensors will be located in correspondence with the bottom of the corresponding rail rails, another one being
- 5 5
- sensores situado a un nivel inferior de lo que es el balasto, mientras que un tercer sensor estará situado a una altura intermedia, siempre en correspondencia con cada uno de los postes, y concretamente en correspondencia con el tramo de cada poste de la catenaria situado por debajo del carril. sensors located at a lower level of what is the ballast, while a third sensor will be located at an intermediate height, always in correspondence with each of the posts, and specifically in correspondence with the section of each post of the catenary located by under the lane
- 1 O 1 o
- Asimismo, los sensores de impacto o de vibración, adosados al nivel de los sensores inferiores, están previstos para reconocer a partir de que momento el balasto comienza a desplazarse de su ubicación, siempre y cuando exista presencia de agua, desplazamiento lógicamente que se realizará hacia el exterior de la plataforma de balasto, dejando el carril sin capacidad portante o inestable frente al paso de trenes. Likewise, the impact or vibration sensors, attached to the level of the lower sensors, are intended to recognize from when the ballast begins to move from its location, as long as there is a presence of water, logically moving towards the outside of the ballast platform, leaving the lane with no bearing or unstable capacity in front of the train passage.
- 15 fifteen
- Las ventajas que resumirse en las siguientes: ofrece el sistema de la invención, pueden The advantages to be summarized in the following: offers he system from the invention, they can
- 20 twenty
- Facilidad de instalación de los sensores en los postes, que se efectuará sobre la cara opuesta al propio carril, hecho que no interrumpe con las labores de mantenimiento habitual del trazado ferroviario. Ease of installation of the sensors on the posts, which will be carried out on the opposite side of the rail itself, a fact that does not interrupt with the usual maintenance of the railway track.
- 25 25
- Gran versatilidad y adaptabilidad, ya que se pueden realizar tramos de largo variable dependiendo de la orografía del terreno y del grado de precisión requerido en la detección. Alta fiabilidad por la sencillez de construcción, durabilidad de sus componentes y su redundancia, no teniendo falsas alarmas por disparos intempestivos. Great versatility and adaptability, since sections of long length can be made depending on the orography of the terrain and the degree of precision required in the detection. High reliability due to the simplicity of construction, durability of its components and its redundancy, not having false alarms due to untimely firing.
- 30 30
- Actualizable o escalable, ya que el autómata se puede Upgradeable or scalable, already that he automaton be may
- reprogramar según se necesite en cada momento e incluso introducir nuevos tipos de alarma o sensores, en un futuro. reprogram as needed at any time and even introduce new types of alarm or sensors, in the future.
- 5 5
- Coste de ejecución contenido. Content execution cost.
- DESCRIPCIÓN DE LOS DIBUJOS DESCRIPTION OF THE DRAWINGS
- 1 O 15 1 or 15
- Para complementar la descripción que seguidamente se va a realizar y con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del mismo, se acompaña como parte integrante de dicha descripción, una única figura en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente: La figura única muestra una representación esquemática correspondiente a un alzado en sección por un plano vertical del sistema detector aplicado sobre un tramo de una vía de ferrocarril. To complement the description that will then be made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a single figure is attached as an integral part of said description. where, for illustrative and non-limiting purposes, the following has been represented: The single figure shows a schematic representation corresponding to a sectional elevation by a vertical plane of the detector system applied on a section of a railway track.
- 20 twenty
- REALIZACIÓN PREFERENTE DE LA INVENCIÓN PREFERRED EMBODIMENT OF THE INVENTION
- 25 25
- Como se puede ver en la figura referida, el sistema de la invención es aplicable a vías de ferrocarril en las que bajo los correspondientes carriles (1) está establecida la respectiva plataforma de balasto (2), vía de ferrocarril que se complementa con los clásicos postes (3) de catenaria (4), todo ello como es convencional. As can be seen in the aforementioned figure, the system of the invention is applicable to railroad tracks in which the respective ballast platform (2) is established under the corresponding rails (1), a railway track that is complemented with the classic posts (3) of catenary (4), all as conventional.
- Según el sistema de la invención, en el tramo inferior de los postes According to the system of the invention, in the lower section of the posts
(3), es decir el que va empotrado en el balasto (2) y queda lógicamente por debajo del carril (1), se han previsto, para cada poste, tres sensores (5, 6 y 7), a distinta cota, cotas que corresponden a un nivel bajo el carril (1), a un nivel intermedio y a un nivel inferior, respectivamente, de manera que esos sensores (5, 6 y 7) establecen tres niveles de actuación en el que el principio de funcionamiento es como sigue: (3), that is, the one that is embedded in the ballast (2) and is logically below the rail (1), three sensors (5, 6 and 7), at different levels, are provided for each post corresponding to a level under the rail (1), to an intermediate level and to a lower level, respectively, so that these sensors (5, 6 and 7) establish three levels of action in which the principle of operation is as follows :
Si dos sensores (7) consecutivos del nivel inferior detectan agua, se activa la señal de aviso por presencia de agua en la base de la plataforma de balasto (2). If two consecutive sensors (7) of the lower level detect water, the warning signal is activated due to the presence of water at the base of the ballast platform (2).
Si con la señal de alarma referida se activan sensores respectivos (6), es decir correspondientes al nivel intermedio, se activa la alarma por presencia importante de aguas sobre la plataforma de balasto (2). If the respective sensors are activated with the referred alarm signal (6), that is, corresponding to the intermediate level, the alarm is activated due to the significant presence of water on the ballast platform (2).
Por último, si con esas dos señales de alarma referidas de los niveles inferior e intermedio, se dispara un sensor (5) del nivel superior, la señal de alarma por inundación completa bajo las vías se haría efectiva. Finally, if with those two referred alarm signals of the lower and intermediate levels, a sensor (5) of the upper level is triggered, the full flood alarm signal under the tracks would become effective.
Por otro lado, se ha previsto que adosados al nivel de los sensores (7), se incluyan los sensores de impacto (8), también denominados de vibración, adosados al nivel de los sensores inferiores (7), de manera que siempre y cuando exista presencia de agua, esos sensores de impacto o vibración (8) reconocen a partir de que momento el balasto (2) comienza a desplazarse de su ubicación, hacia el exterior, dejando el carril (1) sin capacidad portante o inestable frente al paso de trenes. On the other hand, it is envisaged that attached to the level of the sensors (7), the impact sensors (8), also called vibration, included at the level of the lower sensors (7) are included, so that as long as If there is a presence of water, these impact or vibration sensors (8) recognize from which moment the ballast (2) begins to move from its location, towards the outside, leaving the lane (1) without bearing or unstable capacity in front of the passage of trains.
Por lo tanto, se puede conocer en tiempo real el estado de la vía y obrar en consecuencia según el nivel de alarma detectado.
Therefore, the status of the track can be known in real time and act accordingly according to the alarm level detected.
Por último, todo el funcionamiento está basado en un autómata programable (9) mediante el que se gestiona cada tramo vigilado y en base al cual se puede reprogramar en cada momento según las necesidades, e incluso introducir nuevos tipos de alarma o sensores con posterioridad.
Finally, all the operation is based on a programmable automaton (9) through which each monitored section is managed and on the basis of which it can be reprogrammed at any time according to the needs, and even introduce new types of alarm or sensors later.
Claims (1)
- 1a.Sistema detector de nivel de agua en vías de ferrocarril, que 1st water level detector system on railway tracks, which
- teniendo por finalidad conocer en tiempo real el estado de una vía de aiming to know in real time the state of a route of
- 5 5
- ferrocarril cuando se producen inundaciones o aguas abundantes sobre un railway when floods or abundant waters occur on a
- tramo de la correspondiente vía, y en donde los carriles ( 1) del ferrocarril van section of the corresponding track, and where the rail tracks (1) go
- dispuestos sobre plataformas de balasto (2), y sobre éste clavados postes (3) arranged on ballast platforms (2), and on this one nailed posts (3)
- de catenaria, se caracteriza porque sobre cada poste (3) de catenaria (4), y of catenary, it is characterized because on each post (3) of catenary (4), and
- bajo el nivel del carril (1) del ferrocarril, se han previsto tres sensores (5, 6 y under the rail level (1) of the railway, three sensors (5, 6 and
- 1O 1O
- 7), dispuestos en correspondencia con otras tantas cotas o niveles, uno 7), arranged in correspondence with as many levels or levels, one
- supenor, otro intermedio y otro inferior, de manera que dichos sensores upper, intermediate and lower, so that said sensors
- detectan progresivamente niveles de agua en el balasto (2), activando progressively detect water levels in the ballast (2), activating
- correspondientes señales de alarma en combinación con un autómata corresponding alarm signals in combination with an automaton
- programable que gestiona cada tramo vigilado, permitiendo conocer en programmable that manages each section monitored, allowing to know in
- 15 fifteen
- tiempo real el estado de la vía de acuerdo con el nivel de alarma detectado real time the state of the road according to the alarm level detected
- por los sensores (5, 6 y 7); con la particularidad de que adosado al nivel de los by the sensors (5, 6 and 7); with the particularity that attached to the level of
- sensores inferiores (7) se han previsto respectivos sensores de impacto o lower sensors (7) are provided with respective impact sensors or
- vibración (8) para reconocer a partir de que momento el balasto (2) comienza vibration (8) to recognize from when the ballast (2) begins
- a desplazarse de su ubicación. to move from your location.
- 20 twenty
- 2a.-Sistema detector de nivel de agua en vías de ferrocarril, según 2a.-Water level detector system on railway tracks, according to
- reivindicación 1, caracterizado porque los sensores (5, 6 y 7), así como los claim 1, characterized in that the sensors (5, 6 and 7), as well as the
- sensores de impacto o vibración (8) y el propio autómata programable, van impact or vibration sensors (8) and the programmable automaton itself, go
- situados sobre la cara opuesta al correspondiente carril ( 1) del ferrocarril, sin located on the opposite side of the corresponding rail (1) of the railway, without
- 25 25
- interferir en las labores de mantenimiento habitual del trazado ferroviario. interfere with the usual maintenance of the railway track.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES201031825A ES2394696B1 (en) | 2010-12-10 | 2010-12-10 | WATER LEVEL DETECTOR SYSTEM ON RAILWAYS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES201031825A ES2394696B1 (en) | 2010-12-10 | 2010-12-10 | WATER LEVEL DETECTOR SYSTEM ON RAILWAYS |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2394696A1 ES2394696A1 (en) | 2013-02-04 |
ES2394696B1 true ES2394696B1 (en) | 2013-12-11 |
Family
ID=47553722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES201031825A Expired - Fee Related ES2394696B1 (en) | 2010-12-10 | 2010-12-10 | WATER LEVEL DETECTOR SYSTEM ON RAILWAYS |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2394696B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2546762A (en) * | 2016-01-27 | 2017-08-02 | Business Lines Ltd | Railway safety device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB240520A (en) * | 1924-06-26 | 1925-09-28 | Rikirangi Paora | Improvements in or relating to apparatus for giving warning when landslips, floods or other obstructions occur on railway or other tracks |
US2232379A (en) * | 1938-09-28 | 1941-02-18 | Gen Railway Signal Co | Flood protection system for railroads |
DE20006007U1 (en) * | 2000-03-31 | 2001-08-02 | Weege, Reinhard, 48531 Nordhorn | Groundwater lowering control |
GB2394773A (en) * | 2002-10-11 | 2004-05-05 | Brian Sherwin Sweatmore | Reflector for use with an optical monitoring system |
EP1582430A1 (en) * | 2004-03-29 | 2005-10-05 | The Hong Kong Polytechnic University | System and process for monitoring railway tracks |
JP2007147412A (en) * | 2005-11-27 | 2007-06-14 | Teruya:Kk | Real-time inspection system of loose rail fastening using dc battery-less rfid tag with sensor input functions |
KR20090132188A (en) * | 2008-06-20 | 2009-12-30 | 한국철도기술연구원 | Rail inundation observation system and method |
KR100908627B1 (en) * | 2008-12-23 | 2009-07-21 | (주)화진티엔아이 | Automatic rainfall alarm system using self-checking apparatus for measuring amount of rainfall |
-
2010
- 2010-12-10 ES ES201031825A patent/ES2394696B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2394696A1 (en) | 2013-02-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2182687B1 (en) | ELEVATED TRAIN. | |
ES2905665T3 (en) | Procedure, as well as provision for the protection of a level crossing | |
BRPI0905916B1 (en) | system and method for identifying a condition of an approaching characteristic on a railway line from a network of railway lines | |
US6105905A (en) | Railway gate system | |
RU140826U1 (en) | DEVICE FOR LOWER DIMENSION OF ROLLING STOCK | |
BR102018005552A2 (en) | system and method for controlling a level crossing | |
ES2394696B1 (en) | WATER LEVEL DETECTOR SYSTEM ON RAILWAYS | |
ES2368290A1 (en) | Ground vehicle washing facility | |
US20170274917A1 (en) | System for detecting obstructions on a railroad crossing | |
KR102498585B1 (en) | Train signal system for preventing accident of railway vehicle | |
WO1999002387A1 (en) | Security fence installation intended to avoid falling from the platform to a railway | |
RU161003U1 (en) | SIGNAL-CONTROLLING COMPLEX OF RAILWAY TRANSITION | |
RU95625U1 (en) | AUTOMATIC BARRIER | |
ES2564039A1 (en) | Security enclosure for animals and people in communication and other spaces (Machine-translation by Google Translate, not legally binding) | |
BR102018004942A2 (en) | safety device for a rail vehicle, rail vehicle, method for preserving safety of such a rail vehicle and associated computer program | |
ES2284387B1 (en) | IMPROVEMENTS INTRODUCED IN THE PATENT OF INVENTION 200450076, BY AUTOMATIC TRAIN BRAKING SYSTEM BY DETECTION OF DEVELOPMENT. | |
RU2544285C1 (en) | Railway crossing signalling hardware control device | |
KR20100005870U (en) | Roadbed automatic watch and alarm system that use track circuit and power supply | |
ES2265248B1 (en) | PROVISION FOR THE DETECTION OF THE FALL OF OBJECTS IN RAILWAY ROADS THROUGH SENSORIZED MESH WITH DUALITY OF COMMUNICATIONS ON OPTICAL FIBER CIRCUITS. | |
ES2538878A1 (en) | Speed reducing band with beacon system (Machine-translation by Google Translate, not legally binding) | |
RU179282U1 (en) | Device for detecting oversized vehicle height | |
ES2553804B1 (en) | SPO-900 train approach alarm system | |
JP2961535B1 (en) | Sediment collapse detector | |
ES2920223B2 (en) | THREE WIRE TRACK CHANGE EQUIPMENT | |
ES1278754U (en) | DEVICE FOR PEDESTRIAN DETECTION AND IMPROVEMENT OF SIGNALING IN PEDESTRIAN AND SIMILAR CROSSINGS (Machine-translation by Google Translate, not legally binding) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
Ref document number: 2394696 Country of ref document: ES Kind code of ref document: B1 Effective date: 20131211 |
|
FD2A | Announcement of lapse in spain |
Effective date: 20220426 |