EP1251055B1 - Trackside platform area monitoring device and method - Google Patents

Trackside platform area monitoring device and method Download PDF

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Publication number
EP1251055B1
EP1251055B1 EP02008971A EP02008971A EP1251055B1 EP 1251055 B1 EP1251055 B1 EP 1251055B1 EP 02008971 A EP02008971 A EP 02008971A EP 02008971 A EP02008971 A EP 02008971A EP 1251055 B1 EP1251055 B1 EP 1251055B1
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EP
European Patent Office
Prior art keywords
transmitting
receiving
devices
track area
platform track
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EP02008971A
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German (de)
French (fr)
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EP1251055A1 (en
Inventor
Horst Schmischke
Rolf Wiegand
Reiner Mollenhauer
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Honeywell GmbH
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Honeywell GmbH
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    • 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
    • B61L23/041—Obstacle detection

Definitions

  • the invention relates to a device and a method for monitoring a platform track area in particular at stops according to the preamble of claim 1 and of claim 6. It is also suitable for the operation of rail vehicles without driver.
  • a device for detecting obstacles between the barriers of a railroad level crossing in each of which a transmitter for emitting an electromagnetic beam with a fan-shaped radiation characteristic is arranged at each barrier, whose radiation is received by a plurality of arranged on the opposite side receiver.
  • the resolution of the device at different points of the monitored area is different in size, so that the resolution can not be specified exactly and the nature of an obstacle can not be determined accurately.
  • U1 is a monitoring system for handling a train with additional monitoring of the track bed space known in which juxtaposed, vertically oriented laser scanner scan the entrance of a train standing on the platform.
  • the system is supplemented by monitoring the track space, in which laser scanners cover the track space horizontally.
  • To identify bodies falling into the track space a local and temporal correlation between a response of the first, vertical laser scanner system and a response of the second, horizontal laser scanner system. The time difference is used to deduce the severity of the object.
  • the US 3,805,061 discloses an apparatus for detecting objects in a surveillance area where phototransistors are placed opposite light emitting diodes so that the light beam spans the surveillance area.
  • phototransistors are placed opposite light emitting diodes so that the light beam spans the surveillance area.
  • Several of these sensor arrangements are arranged next to one another, with a plurality of adjacently installed sensor arrangements being combined into groups and activated one after the other in succession.
  • VDV-Schrift 399 of October 2000 of the Association of German Transport Undertakings requirements for such facilities are defined.
  • Such devices must have a response time of less than 1 second.
  • the intrusion of persons into the danger zone must be recognized with certainty, whereby it is recommended in VDV document 399 to monitor the danger area below a platform edge in order to protect the system against manipulation secured by passengers.
  • it must be ensured that trains that are located in the hazardous area to be monitored do not lead to a warning message from the system.
  • VDV document 399 With regard to further requirements for such systems, reference is made to the VDV document 399.
  • the present invention is based on the problem to provide a device for monitoring platform tracks at stops, which takes into account the above requirements and allows monitoring with a precise resolution with low investment costs.
  • a plurality of transmitting devices are arranged along a first edge of the platform track area and a plurality of receiving devices are arranged opposite thereto on the other side of the platform track area.
  • a transmitting device forms an active radar path together with the respectively corresponding receiving device as a transponder path, so that a foreign body in the region of this sensor pair is detected by weakening or disturbing the sensor signal.
  • each sensor pair respectively consists of transmitting device and receiving device and a plurality of pairs of sensors are arranged transversely to the roadway of a rail vehicle at a predetermined distance, the resolution can be specified by spacing the adjacently arranged sensor pairs.
  • the distance between the adjacent transmitting devices and the corresponding receiving devices is preferably chosen to be the same. However, it is also possible to obtain a better resolution in particularly important or endangered areas by reducing the sensor distance.
  • the distance between two adjacently arranged transmitting and receiving devices corresponds to half the desired resolution of the monitoring device.
  • a body located in the platform track area is of such size that it is to be detected by the monitoring device and if necessary a warning signal is to be generated, at least two of the sensors have a reduced signal due to the shielding by the body. If, in contrast, only one sensor does not receive the radar signal undisturbed, this indicates a smaller object in the beam path, for example a can of soda or the like, from which no danger situation arises. In this case, the device should not issue a warning message.
  • a test specimen with a diameter of 30 cm is to be detected.
  • the distance of the adjacently arranged sensor pairs of transmitting device and receiving device is therefore 15 cm. Depending on the desired resolution, however, these distances can be varied.
  • the transmitting devices with their respective corresponding receiving device can preferably be activated one after the other in series.
  • the speed and direction of movement of individual bodies can then be determined from the time sequence of the sensor signals.
  • a plurality of transmitting devices are combined to form a transmitting unit and a plurality of receiving devices are combined to form a receiving unit, wherein a plurality of transmitting units and a plurality of receiving units are arranged along the platform track area.
  • the transmitting devices in a transmitting unit with the corresponding receiving devices in the corresponding receiving unit time series successively activated and multiple transmitting and receiving units are parallel to each other operable.
  • time-resolved monitoring signals are obtained separately for each transmitting and receiving unit, whereby nevertheless the entire platform track area can be monitored simultaneously.
  • the first receiving and transmitting devices of each receiving and transmitting unit are addressed simultaneously.
  • both the transmitting units and the receiving units are connected to the evaluation device via a common data bus.
  • the device comprises at least one microprocessor, wherein the microprocessor (s) for controlling the transmitting devices, the receiving devices, a transmitting unit and / or a receiving unit and / or for the evaluation of the sensor data, in particular for the identification of a body in the platform track area and for detecting the direction of movement and / or speed, is set up.
  • the microprocessor for controlling the transmitting devices, the receiving devices, a transmitting unit and / or a receiving unit and / or for the evaluation of the sensor data, in particular for the identification of a body in the platform track area and for detecting the direction of movement and / or speed, is set up.
  • the present invention relates to a method for monitoring a platform track area, in particular at stops with the features of claim 6, in particular with the device described above, in which a plurality arranged along a first edge of the platform track area transmitting devices and these on the other side of the platform track area associated receiving devices each as Transponder path form an active radar path and the signals of the receiving devices are evaluated.
  • Several transmitting devices become a transmitting unit and a plurality of receiving devices are combined to form a receiving unit (27).
  • Both the transmitting units (26) and the receiving units (27) are connected to an evaluation device via a common data bus (16, 17) (18) connected.
  • the method recognizes a body in the platform track area when the signal from at least two adjacently arranged receiving devices indicates a body in the platform track area. This can be done over the
  • the resolution of the process can be precisely adjusted because a body in the platform track area must be at least so large that two sensors are at least partially shielded. Smaller items that only affect the signal of a receiving device are not interpreted as a hazard. This can significantly reduce the false alarm rate.
  • the number of occupied reporting, immediately adjacent receiving devices is determined whose signal indicates a body in the platform track area.
  • a high number of such busy messages indicates that a train is in the platform track area. In this case, too, no error message of the system is to be generated, which possibly initiates an emergency stop of the train, since this is an operational state.
  • the transmitting and receiving devices are activated one after the other in succession, and the speed and / or direction of movement of a body in the platform track area is determined from the time information.
  • This can be achieved for example by means of a microprocessor.
  • the method can detect whether the body in the surveillance area is a train or a person, whether the train is moving or standing, whether a train and one or more people are in the surveillance area at the same time, what distance they are from and with what speed they move (even relative to each other).
  • the apparatus and the method according to the present invention it is thus possible to reliably monitor a platform track area and to recognize the nature of possible dangers and to differentiate them from operational situations.
  • the evaluation criteria for example by programming the microprocessor of the evaluation, the device can thus be flexibly adapted to different requirements.
  • the Figures 1 and 2 show schematically in cross section and in plan view to be monitored platform track area 10.
  • area 10 the rail tracks 11, 12, on which a non-illustrated rail vehicle runs.
  • a platform 13 on which normally passengers stay during the waiting time.
  • a radar transponder sensor system is proposed with the device according to the invention for monitoring hazardous areas.
  • active radar paths are arranged along the entire platform track area 10 to be monitored at a predetermined distance.
  • Such an active radar path consists of a transmitting and a receiving device.
  • FIGS. 3, 4 show a plurality of transmitting devices 14 which are arranged at the same distance from each other below an upper edge of the platform 13.
  • Each of the transmitting devices 14 is assigned a corresponding receiving device 15 on the other side of the platform track area 10 to be monitored.
  • the equidistant arrangement of the transmitting devices 14 and of the corresponding receiving devices 15 along the track track area 10 to be monitored results in detail FIG. 4 .
  • the preferred distance between the active radar lines, ie on the one hand between the adjacent transmitting devices 14 and on the other hand between the adjacent receiving means 15 is about 15 cm. It is based on the fact that a test specimen with a diameter of 30 cm should be reliably recognized and distinguished from smaller objects.
  • Both the transmitting devices 14 and the receiving devices 15 are each connected via a data bus 16, 17 to an evaluation device, namely a computer 18.
  • the computer 18 has according to
  • FIG. 7 furthermore via an interface 19 to a superordinate computer system. Furthermore, in FIG. 7 Power supply lines 20, 21 and 22 for the computer 18 and the transmitting devices 14 and receiving devices 15 shown.
  • each radar transponder consists of a transmitting device 14 and a corresponding receiving device 15.
  • the transmitting devices 14 are impressed with a pulse width which the receiving devices 15 must detect.
  • the preparation of a message is made in the computer 18 as to whether a person or a train is in the danger area.
  • FIG. 1 can be seen that the transmitting devices 14 and receiving devices 15 are arranged between a section 23 for accommodating a pantograph and a boundary line 24 of the rail vehicle.
  • FIGS. 3 to 4 It can also be seen that an opening angle of approximately 25 degrees is chosen for the active radar lines both in a horizontal surveillance plane and in a vertical surveillance plane.
  • the sensitivity of the receiving devices is dimensioned such that a standard test body 25 arranged in the platform track area 10 to be monitored (see FIG FIG. 4 ) is recognized.
  • the standard test specimen has a circular cross-section of 30cm diameter.
  • the measuring principle according to the invention is based on the fact that the reception level is a measure of the shading.
  • the reception level is a measure of the shading.
  • the reception level is a measure of the shading.
  • the standard test body 25 if this is arranged within the danger space to be monitored, is based on the already mentioned dimensions and opening angle to arrange the next active radar route at a distance of at most 30 cm in the longitudinal direction of the railway tracks.
  • a higher failure safety can be achieved with a distance of only 15 cm.
  • eight transmitting devices 14 or receiving devices 15 are combined to transmit units 26 or receiving units 27. At a distance of only 15 cm between the adjacent transmitting and receiving devices 14, 15 and sixteen transmitting devices 14 and receiving devices 15 to transmit units 26 and receiving units 27 can be summarized.
  • FIG. 4 results in a transmitting device 14 in the present embodiment, a certain number of receiving devices 15 from. Therefore, only one transmitting device 14 is activated in each transmitting unit 26 for a predetermined period of preferably 100 ⁇ s. In the corresponding receiving device 15, the recorded signal is also evaluated only for this predetermined period of time.
  • the device according to the invention is an autonomously operating system for detecting persons who enter a danger space 10 or are within the danger space to be monitored.
  • FIG. 5 shows a block diagram of several combined to a transmitting unit 26 transmitting devices 14. As already mentioned, each eight or sixteen transmitting devices 14 are combined to form a transmitting unit 26. For the sake of simplicity, in FIG. 5 only the first and the eighth transmitting device 14 are shown.
  • transmitting devices 14 For the power supply of all combined to a transmitting unit 26 transmitting devices 14 is a power supply 28, which is connected to power supply lines 29, 30. Furthermore, the transmitting unit 26 has control all transmitting devices 14 via a microprocessor 31 which is connected to a data bus 32. Each transmitting device 14, which is controlled by the microprocessor 31 and supplied with power via the power supply 28, has an antenna 33, which is controlled via a high-frequency part 34.
  • the high-frequency part 34 has a cavity resonator 35 with an associated Gundiode 36. The control of the high-frequency part 34 and the Gundiode 36 via driver 37 with upstream decoder 38th
  • the activation of the transmitting devices 14 takes place via the microprocessor 31, wherein the transmitting devices 14 combined to form a transmitting unit 26 are activated time-series starting from the first transmitter. With a selected transmission time of 100 ⁇ s and eight transmit devices combined to one transmission unit 26, a transmission cycle of 800 ⁇ s results.
  • receiving unit 27 summarized receiving devices 15 shows FIG. 6 , Also, the receiving unit 27 is housed in a waterproof case.
  • Each of the eight or sixteen receiving devices 15 combined into the receiving unit 27 has an antenna 39 with an associated receiving module 40, wherein each receiving module 40 is assigned a receiving diode 41.
  • the signals received by the receiving diodes 41 are amplified by respective signal amplifiers 42.
  • the output signals of the signal amplifiers 42 are supplied to an analog multiplexer 43 with a downstream analog / digital converter 44.
  • a microprocessor 45 with associated coding switch 46 takes over the evaluation of the received signals from the transmitting device 15 and transmits them to a data bus 47.
  • a power supply 48 is provided, which is connected to power supply lines 49, 50.
  • the transmitting devices 14 of the transmitting unit 26 are activated by the microprocessor 45 time series.
  • the activation of the receiving devices 15 of the receiving unit 27 and of the transmitting devices 14 of the transmitting unit 26 takes place in parallel and in turn lasts a total of 800 ⁇ s when each of the eight transmitting devices 15 is activated for 100 ⁇ s.
  • the number of transmitting and receiving devices 14, 15 in a transmitting or receiving unit 26, 27 and the time of activation can be freely adjusted.
  • the microprocessor evaluates the signals of the receiving devices 15 of the different receiving units 27 such that receiving devices 15 of different receiving units 27 can be compared with one another in terms of time.
  • the signal from one receiver to another will indicate that a body is in the platform track area. Due to the rapidly increasing number of receiving devices with this signal and the ability to determine the speed of this body, the system can recognize due to the signal processing that the body is an incoming train and at the same time determine its speed. On the other hand, if the signals from the receiving devices 15 indicate that a body is moving slowly in the surveillance area and only a few receiving devices 15 that move with the movement display a body in the surveillance area during the movement, this indicates a person in this area. In this case, a message is issued. The same applies to a stationary body, which only affects the signal of fewer adjacent receiving devices 15.
  • danger space monitoring can be realized in a simple manner.
  • the number of transmitting devices and receiving devices or transmitting units and receiving units must be determined.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

A device to monitor a platform track region at a station comprises many sending units (14) along one side of the region and many receiving units (15) along the opposite side. Each sender with its corresponding receiver produces an active radar beam.

Description

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur Überwachung eines Bahnsteiggleisbereichs insbesondere an Haltestellen gemäß dem Oberbegriff der Anspruchs 1 bzw. des Anspruchs 6. Sie ist auch für den Fahrbetrieb von Schienenfahrzeugen ohne Fahrzeugführer geeignet.The invention relates to a device and a method for monitoring a platform track area in particular at stops according to the preamble of claim 1 and of claim 6. It is also suitable for the operation of rail vehicles without driver.

Der Fahrgastsicherheit im Bereich von Haltestellen insbesondere bei Fahrbetrieb ohne Fahrzeugführer kommt eine besondere Bedeutung zu. Es muss eine Einrichtung vorhanden sein, die dem in eine Notsituation geratenen Fahrgast den erforderlichen Schutz vor den Gefahren des Bahnbetriebs gewährt.Passenger safety in the area of stops, especially when driving without a driver is of particular importance. There must be equipment available to provide the passenger in an emergency situation with the necessary protection against the dangers of rail operations.

Eine ähnliche Situation ergibt sich bei der Überwachung von Bahnübergängen. Aus der DE 26 56 706 C2 ist eine Einrichtung zum Feststellen von Hindernissen zwischen den Schranken eines schienengleichen Bahnübergangs bekannt, bei der je ein Sender zur Aussendung eines elektromagnetischen Strahles mit fächerförmiger Abstrahlungscharakteristik an jeder Schranke angeordnet ist, dessen Strahlung durch mehrere an der jeweils gegenüberliegenden Seite angeordnete Empfänger empfangen wird. Dabei ist die Auflösung der Einrichtung der an verschiedenen Stellen des überwachten Bereichs unterschiedlich groß, so dass die Auflösung nicht genau vorgegeben und die Art eines Hindernisses nicht genau festgestellt werden kann.A similar situation arises in the monitoring of level crossings. From the DE 26 56 706 C2 a device for detecting obstacles between the barriers of a railroad level crossing is known, in each of which a transmitter for emitting an electromagnetic beam with a fan-shaped radiation characteristic is arranged at each barrier, whose radiation is received by a plurality of arranged on the opposite side receiver. In this case, the resolution of the device at different points of the monitored area is different in size, so that the resolution can not be specified exactly and the nature of an obstacle can not be determined accurately.

Aus der DE 200 20 009 U1 ist ein Überwachungssystem zur Abfertigung eine Zuges mit ergänzbarer Überwachung des Gleisbettraums bekannt, bei der nebeneinander angeordnete, vertikal gerichtete Laserscanner den Eingangsbereich eines an dem Bahnsteig stehenden Zuges abtasten. Ergänzt wird das System durch eine Überwachung des Gleisraums, bei der Laserscanner horizontal gerichtet den Gleisraum abdecken. Zur Identifikation von in den Gleisraum fallenden Körpern wird eine örtliche und zeitliche Korrelation zwischen einem Ansprechen des ersten, vertikalen Laserscannersystems und einem Ansprechen des zweiten, horizontalen Laserscannersystems gebildet. Aus der Zeitdifferenz wird auf die Schwere des Objekts zurückgeschlossen. Zum Feststellen von Körpern im Überwachungsbereich wird der reflektierte Licht eines Laserscanner detektiert und das so erhaltene Abtastprofil ausgewertet.From the DE 200 20 009 U1 is a monitoring system for handling a train with additional monitoring of the track bed space known in which juxtaposed, vertically oriented laser scanner scan the entrance of a train standing on the platform. The system is supplemented by monitoring the track space, in which laser scanners cover the track space horizontally. To identify bodies falling into the track space, a local and temporal correlation between a response of the first, vertical laser scanner system and a response of the second, horizontal laser scanner system. The time difference is used to deduce the severity of the object. To detect bodies in the surveillance area, the reflected light of a laser scanner is detected and the scanning profile thus obtained is evaluated.

Die US 3,805,061 offenbart eine Vorrichtung zur Detektion von Gegenständen in einem Überwachungsbereich, bei der Phototransistoren gegenüber von Licht emittierenden Dioden angeordnet werden, so dass der Lichtstrahl den Überwachungsbereich überspannt. Mehrere dieser Sensoranordnungen sind nebeneinander angeordnet, wobei mehrere nebeneinander installierte Sensoranordnungen zu Gruppen zusammengefasst und zeitseriell nacheinander aktiviert werden.The US 3,805,061 discloses an apparatus for detecting objects in a surveillance area where phototransistors are placed opposite light emitting diodes so that the light beam spans the surveillance area. Several of these sensor arrangements are arranged next to one another, with a plurality of adjacently installed sensor arrangements being combined into groups and activated one after the other in succession.

In der VDV-Schrift 399 vom Oktober 2000 des Verband Deutscher Verkehrsuntemehmen sind Anforderungen an derartige Einrichtungen definiert. So müssen derartige Einrichtungen eine Reaktionszeit von weniger als 1 Sekunde aufweisen. Das Eindringen von Personen in den Gefahrenbereich muss mit Sicherheit erkannt werden, wobei in der VDV-Schrift 399 empfohlen wird, den Gefahrenraum unterhalb einer Bahnsteigkante zu überwachen, um das System vor Manipulationen durch Fahrgäste zu sichern. Weiterhin muss gewährleistet sein, dass Züge, die sich im zu überwachenden Gefahrenbereich befinden, nicht zu einer Warnmeldung des Systems führen. Im Hinblick aufweitere Anforderungen an derartige Systeme wird auf die VDV-Schrift 399 verwiesen.In VDV-Schrift 399 of October 2000 of the Association of German Transport Undertakings requirements for such facilities are defined. Thus, such devices must have a response time of less than 1 second. The intrusion of persons into the danger zone must be recognized with certainty, whereby it is recommended in VDV document 399 to monitor the danger area below a platform edge in order to protect the system against manipulation secured by passengers. Furthermore, it must be ensured that trains that are located in the hazardous area to be monitored do not lead to a warning message from the system. With regard to further requirements for such systems, reference is made to the VDV document 399.

Hiervon ausgehend liegt der vorliegenden Erfindung das Problem zugrunde, eine Vorrichtung zur Überwachung von Bahnsteiggleisen an Haltestellen bereitzustellen, die den obigen Anforderungen Rechnung trägt und mit geringem Investitionsaufwand eine Überwachung mit einer genauen Auflösung ermöglicht.On this basis, the present invention is based on the problem to provide a device for monitoring platform tracks at stops, which takes into account the above requirements and allows monitoring with a precise resolution with low investment costs.

Zur Lösung des Problems wird eine Vorrichtung zur Überwachung eines Bahnsteiggleis an Haltestellen mit den Merkmalen des Anspruchs 1 vorgeschlagen.To solve the problem, a device for monitoring a platform track at stops with the features of claim 1 is proposed.

Bei der Vorrichtung zur Überwachung des Bahnsteiggleisbereichs insbesondere an Haltestellen sind entlang einer ersten Kante des Bahnsteiggleisbereichs mehrere Sendeeinrichtungen und gegenüberliegend hierzu auf der anderen Seite des Bahnsteiggleisbereichs mehrere Empfangseinrichtungen angeordnet. Dabei bildet jeweils eine Sendeeinrichtung zusammen mit der jeweils korrespondierenden Empfangseinrichtung als Transponderstrecke eine aktive Radarstrecke, so dass ein Fremdkörper im Bereich dieses Sensorpaares durch Abschwächung oder Störung des Sensorsignals festgestellt wird. Da jedes Sensorpaar jeweils aus Sendeeinrichtung und Empfangseinrichtung besteht und mehrere Sensorpaare quer zur Fahrbahn eines Schienfahrzeugs in einem vorgegebenen Abstand angeordnet sind, kann durch Abstand der benachbart angeordneten Sensorpaare die Auflösung vorgegeben werden. Um in dem gesamten Überwachungsbereich eine gleichmäßige Auflösung zu erzielen, wird der Abstand der benachbarten Sendeeinrichtungen und der entsprechenden Empfangseinrichtungen vorzugsweise gleich gewählt. Es ist jedoch auch möglich, in besonders wichtigen oder gefährdeten Bereichen durch Verringerung des Sensorabstands eine besser Auflösung zu erhalten.In the apparatus for monitoring the platform track area, in particular at stops, a plurality of transmitting devices are arranged along a first edge of the platform track area and a plurality of receiving devices are arranged opposite thereto on the other side of the platform track area. In each case, a transmitting device forms an active radar path together with the respectively corresponding receiving device as a transponder path, so that a foreign body in the region of this sensor pair is detected by weakening or disturbing the sensor signal. Since each sensor pair respectively consists of transmitting device and receiving device and a plurality of pairs of sensors are arranged transversely to the roadway of a rail vehicle at a predetermined distance, the resolution can be specified by spacing the adjacently arranged sensor pairs. In order to achieve a uniform resolution in the entire monitoring area, the distance between the adjacent transmitting devices and the corresponding receiving devices is preferably chosen to be the same. However, it is also possible to obtain a better resolution in particularly important or endangered areas by reducing the sensor distance.

Vorzugsweise entspricht der Abstand zwischen zwei benachbart angeordneten Sende- bzw. Empfangseinrichtungen der Hälfte der gewünschten Auflösung der Überwachungsvorrichtung. Wenn also ein im Bahnsteiggleisbereich befindlicher Körper eine solche Größe aufweist, dass er von der Überwachungseinrichtung festgestellt und gegebenenfalls ein Warnsignal erzeugt werden soll, haben mindestens zwei der Sensoren aufgrund der Abschirmung durch den Körper ein vermindertes Signal. Wenn dagegen nur ein Sensor das Radarsignal nicht ungestört empfängt, deutet dies auf einen kleineren Gegenstand im Strahlengang hin, beispielsweise eine Coladose oder dgl., von der keine Gefahrensituation ausgeht. In diesem Fall soll die Vorrichtung keine Warnmeldung ausgeben. Nach den eingangs zitierten Vorschriften soll ein Prüfkörper mit einem Durchmesser von 30 cm nachgewiesen werden. Für diesen Fall beträgt der Abstand der benachbart angeordneten Sensorpaare aus Sendeeinrichtung und Empfangseinrichtung daher 15 cm. Je nach der gewünschten Auflösung können diese Abstände jedoch variiert werden.Preferably, the distance between two adjacently arranged transmitting and receiving devices corresponds to half the desired resolution of the monitoring device. Thus, if a body located in the platform track area is of such size that it is to be detected by the monitoring device and if necessary a warning signal is to be generated, at least two of the sensors have a reduced signal due to the shielding by the body. If, in contrast, only one sensor does not receive the radar signal undisturbed, this indicates a smaller object in the beam path, for example a can of soda or the like, from which no danger situation arises. In this case, the device should not issue a warning message. According to the rules cited above, a test specimen with a diameter of 30 cm is to be detected. For this case, the distance of the adjacently arranged sensor pairs of transmitting device and receiving device is therefore 15 cm. Depending on the desired resolution, however, these distances can be varied.

Damit die Vorrichtung auch eine mögliche Bewegung von in dem Überwachungsbereich befindlichen Körpern feststellen kann, sind die Sendeeinrichtungen mit ihrer jeweils korrespondierenden Empfangseinrichtung vorzugsweise zeitseriell nacheinander aktivierbar. Aus der zeitlichen Abfolge der Sensorsignale können dann Geschwindigkeit und Bewegungsrichtung einzelner Körper ermittelt werden.So that the device can also determine a possible movement of bodies located in the monitoring area, the transmitting devices with their respective corresponding receiving device can preferably be activated one after the other in series. The speed and direction of movement of individual bodies can then be determined from the time sequence of the sensor signals.

Erfindungsgemäß sind mehrere Sendeeinrichtungen zu einer Sendeeinheit und mehrere Empfangseinrichtungen zu einer Empfangseinheit zusammengefasst, wobei entlang des Bahnsteiggleisbereichs mehrere Sendeeinheiten und mehrere Empfangseinheiten angeordnet sind. Auf diese Weise lassen sich auch lange Bahnsteiggleisbereiche besonders einfach parallel überwachen, indem die Sende- und Empfangseinheiten zeitgleich angesteuert werden.According to the invention, a plurality of transmitting devices are combined to form a transmitting unit and a plurality of receiving devices are combined to form a receiving unit, wherein a plurality of transmitting units and a plurality of receiving units are arranged along the platform track area. In this way, long platform track areas can be particularly easily monitored in parallel by the transmitting and receiving units are controlled simultaneously.

Hierbei ist es besonders vorteilhaft, wenn die Sendeeinrichtungen in einer Sendeeinheit mit den korrespondierenden Empfangseinrichtungen in der entsprechenden Empfangseinheit zeitseriell nacheinander aktivierbar und mehrere Sende- und Empfangseinheiten parallel zueinander betreibbar sind. In diesem Fall erhält man für jede Sende- und Empfangseinheit separat voneinander zeitlich aufgelöste Überwachungssignale, wobei dennoch der gesamte Bahnsteiggleisbereich gleichzeitig überwacht werden kann. Vorzugsweise werden dabei die ersten Empfangs- und Sendeeinrichtungen jeder Empfangs- und Sendeeinheit gleichzeitig angesprochen.It is particularly advantageous if the transmitting devices in a transmitting unit with the corresponding receiving devices in the corresponding receiving unit time series successively activated and multiple transmitting and receiving units are parallel to each other operable. In this case, time-resolved monitoring signals are obtained separately for each transmitting and receiving unit, whereby nevertheless the entire platform track area can be monitored simultaneously. Preferably, the first receiving and transmitting devices of each receiving and transmitting unit are addressed simultaneously.

Zur Koordination der Signale sind sowohl die Sendeeinheiten als auch die Empfangseinheiten über einen gemeinsamen Datenbus mit der Auswerteeinrichtung verbunden.For coordinating the signals, both the transmitting units and the receiving units are connected to the evaluation device via a common data bus.

Für die Auswertung weist die Vorrichtung erfindungsgemäß mindestens einen Mikroprozessor auf, wobei der oder die Mikroprozessor(en) zur Ansteuerung der Sendeeinrichtungen, der Empfangseinrichtungen, einer Sendeeinheit und/oder einer Empfangseinheit und/oder zur Auswertung der Sensordaten, insbesondere zur Identifikation eines Körpers im Bahnsteiggleisbereich und zur Erkennung dessen Bewegungsrichtung und/oder Geschwindigkeit, eingerichtet ist.For the evaluation, the device according to the invention comprises at least one microprocessor, wherein the microprocessor (s) for controlling the transmitting devices, the receiving devices, a transmitting unit and / or a receiving unit and / or for the evaluation of the sensor data, in particular for the identification of a body in the platform track area and for detecting the direction of movement and / or speed, is set up.

Ferner betrifft die vorliegende Erfindung ein Verfahren zur Überwachung eines Bahnsteiggleisbereichs insbesondere an Haltestellen mit den Merkmalen des Anspruchs 6, insbesondere mit der vorbeschriebenen Vorrichtung, bei dem mehrere entlang einer ersten Kante des Bahnsteiggleisbereichs angeordnete Sendeeinrichtungen und diesen auf der anderen Seite des Bahnsteiggleisbereichs zugeordnete Empfangseinrichtungen jeweils als Transponderstrecke eine aktive Radarstrecke bilden und die Signale der Empfangseinrichtungen ausgewertet werden. Mehrere Sendeeinrichtungen werden zu einer Sendeeinheit und mehrere Empfangseinrichtungen werden zu einer Empfangseinheit (27) zusammengefasst. Sowohl die Sendeeinheiten (26) als auch die Empfangseinheiten (27) werden über einen gemeinsamen Datenbus (16, 17) mit einer Auswerteeinrichtung (18) verbunden. Dabei erkennt das Verfahren einen Körper im Bahnsteiggleisbereich dann, wenn das Signal von mindestens zwei benachbart angeordneten Empfangseinrichtungen einen Körper im Bahnsteiggleisbereich anzeigt. Damit kann über denFurthermore, the present invention relates to a method for monitoring a platform track area, in particular at stops with the features of claim 6, in particular with the device described above, in which a plurality arranged along a first edge of the platform track area transmitting devices and these on the other side of the platform track area associated receiving devices each as Transponder path form an active radar path and the signals of the receiving devices are evaluated. Several transmitting devices become a transmitting unit and a plurality of receiving devices are combined to form a receiving unit (27). Both the transmitting units (26) and the receiving units (27) are connected to an evaluation device via a common data bus (16, 17) (18) connected. In this case, the method recognizes a body in the platform track area when the signal from at least two adjacently arranged receiving devices indicates a body in the platform track area. This can be done over the

Abstand der Empfangseinrichtungen die Auflösung des Verfahrens genau eingestellt werden, da ein Körper im Bahnsteiggleisbereich mindestens so groß sein muss, dass zwei Sensoren zumindest teilweise abgeschirmt werden. Kleinere Gegenstände, die nur das Signal einer Empfangseinrichtung beeinflussen, werden nicht als Gefährdung interpretiert. Dadurch lässt sich die Fehlalarmrate deutlich verringern.Distance of the receiving devices, the resolution of the process can be precisely adjusted because a body in the platform track area must be at least so large that two sensors are at least partially shielded. Smaller items that only affect the signal of a receiving device are not interpreted as a hazard. This can significantly reduce the false alarm rate.

Zur weiteren Vermeidung von Fehlalarmen wird erfindungsgemäß die Anzahl der belegt meldenden, unmittelbar nebeneinander liegenden Empfangseinrichtungen ermittelt, deren Signal einen Körper im Bahnsteiggleisbereich anzeigt. Eine hohe Anzahl solcher Belegtmeldungen deutet darauf hin, dass sich ein Zug im Bahnsteiggleisbereich befindet. Auch in diesem Fall ist keine Fehlermeldung des Systems zu erzeugen, die gegebenenfalls einen Notstopp des Zuges einleitet, da es sich hierbei um einen betriebsgemäßen Zustand handelt.To further avoid false alarms according to the invention, the number of occupied reporting, immediately adjacent receiving devices is determined whose signal indicates a body in the platform track area. A high number of such busy messages indicates that a train is in the platform track area. In this case, too, no error message of the system is to be generated, which possibly initiates an emergency stop of the train, since this is an operational state.

Nach dem erfindungsgemäßen Verfahren ist weiterhin vorgesehen, dass die Sende- und Empfangseinrichtungen zeitseriell nacheinander aktiviert werden, und aus der Zeitinformation Geschwindigkeit und/oder Bewegungsrichtung eines Körpers im Bahnsteiggleisbereich bestimmt werden. Dies kann beispielsweise mittels eines Mikroprozessors erreicht werden.According to the method of the invention, it is further provided that the transmitting and receiving devices are activated one after the other in succession, and the speed and / or direction of movement of a body in the platform track area is determined from the time information. This can be achieved for example by means of a microprocessor.

Im Zusammenhang mit dieser Signalaufbereitung kann das Verfahren erkennen, ob es sich bei dem Körper im Überwachungsbereich um einen Zug oder eine Person handelt, ob der Zug fährt oder steht, ob gleichzeitig ein Zug und eine oder mehrere Personen im Überwachungsbereich sind, welchen Abstand sie haben und mit welcher Geschwindigkeit sie sich (auch relativ zueinander) bewegen.In the context of this signal conditioning, the method can detect whether the body in the surveillance area is a train or a person, whether the train is moving or standing, whether a train and one or more people are in the surveillance area at the same time, what distance they are from and with what speed they move (even relative to each other).

Mit der Vorrichtung und dem Verfahren nach der vorliegenden Erfindung ist es demnach möglich, einen Bahnsteiggleisbereich zuverlässig zu überwachen und die Art möglicher Gefahren zu erkennen und von betriebsgemäßen Situationen zu unterscheiden. Durch Vorgabe der Auswertungskriterien, beispielsweise durch Programmierung des Mikroprozessors des Auswertungssystems, kann die Vorrichtung damit auch flexibel an verschiedene Anforderungen angepasst werden.With the apparatus and the method according to the present invention, it is thus possible to reliably monitor a platform track area and to recognize the nature of possible dangers and to differentiate them from operational situations. By specifying the evaluation criteria, for example by programming the microprocessor of the evaluation, the device can thus be flexibly adapted to different requirements.

Nachfolgend wird anhand der Zeichnung ein bevorzugtes Ausführungsbeispiel der Erfindung näher beschrieben. Daraus ergeben sich weitere Vorteile und Merkmale der vorliegenden Erfindung. In der Zeichnung zeigt:

Fig. 1
einen zu überwachenden typischen Bahnsteiggleisbereich im Querschnitt,
Fig. 2
einen zu überwachenden Bahnsteiggleisbereich in Draufsicht,
Fig. 3
das Prinzip der erfindungsgemäßen Vorrichtung im Zusammenhang mit einem im Querschnitt dargestellten Bahnsteiggleisbereich,
Fig. 4
das Prinzip der erfindungsgemäßen Vorrichtung im Zusammenhang mit einem in Draufsicht gezeigten Bahnsteiggleisbereich.
Fig. 5
ein Blockschaltbild mehrerer zu einer Sendeeinheit zusammen gefasster acht Sendeeinrichtungen für die erfindungsgemäße Vorrichtung.
Fig. 6
ein Blockschaltbild mehrerer zu einer Empfangseinheit zusammengefasster Empfangseinrichtungen für die erfindungsgemäße Vorrichtung,
Fig. 7
ein schematisiertes Blockschaltbild der erfindungsgemäßen Vorrichtung.
Hereinafter, a preferred embodiment of the invention will be described in more detail with reference to the drawing. This results in further advantages and features of the present invention. In the drawing shows:
Fig. 1
a typical platform track area to be monitored in cross-section,
Fig. 2
a platform track area to be monitored in plan view,
Fig. 3
the principle of the device according to the invention in connection with a platform track section shown in cross-section,
Fig. 4
the principle of the device according to the invention in connection with a platform track area shown in plan view.
Fig. 5
a block diagram of several to a transmitting unit combined eight transmitting devices for the device according to the invention.
Fig. 6
a block diagram of several combined to a receiving unit receiving devices for the device according to the invention,
Fig. 7
a schematic block diagram of the device according to the invention.

Die Figuren 1 und 2 zeigen schematisch im Querschnitt sowie in Draufsicht einen zu überwachenden Bahnsteiggleisbereich 10. Im Bereich 10 verlaufen die Schienenstränge 11, 12, auf denen ein nicht-dargestelltes Schienenfahrzeug fährt. Seitlich neben dem Bahngleisbereich 10 befindet sich ein Bahnsteig 13, auf dem sich im Normalfall Fahrgäste während der Wartezeit aufhalten.The Figures 1 and 2 show schematically in cross section and in plan view to be monitored platform track area 10. In area 10, the rail tracks 11, 12, on which a non-illustrated rail vehicle runs. Laterally next to the railroad track area 10 is a platform 13, on which normally passengers stay during the waiting time.

Mit der erfindungsgemäßen Vorrichtung zur Gefahrraumüberwachung wird ein Radar-Transponder-Sensorsystem vorgeschlagen. Quer zur Fahrbahn des Schienenfahrzeugs werden in einem vorgegebenen Abstand aktive Radarstrecken entlang des gesamten zu überwachenden Bahnsteiggleisbereichs 10 angeordnet. Eine derartige aktive Radarstrecke besteht jeweils aus einer Sende- und einer Empfangseinrichtung.A radar transponder sensor system is proposed with the device according to the invention for monitoring hazardous areas. Transverse to the roadway of the rail vehicle, active radar paths are arranged along the entire platform track area 10 to be monitored at a predetermined distance. Such an active radar path consists of a transmitting and a receiving device.

Figuren 3, 4 zeigen mehrere Sendeeinrichtungen 14, die mit gleichem Abstand voneinander unterhalb einer Oberkante des Bahnsteigs 13 angeordnet sind. Jedem der Sendeeinrichtungen 14 ist gegenüberliegend - also an der anderen Seite des zu überwachenden Bahnsteiggleisbereichs 10- eine entsprechende Empfangseinrichtung 15 zugeordnet. Die äquidistante Anordnung der Sendeeinrichtungen 14 sowie der korrespondierenden Empfangseinrichtungen 15 entlang des zu überwachenden Bahngleisbereichs 10 ergibt sich im Detail aus Figur 4. Der bevorzugte Abstand zwischen den aktiven Radarstrecken, also einerseits zwischen den benachbarten Sendeinrichtungen 14 und andererseits zwischen den benachbarten Empfangseinrichtungen 15 beträgt ca. 15 cm. Dabei wird zugrundegelegt, dass ein Prüfkörper mit einem Durchmesser von 30 cm zuverlässig erkannt und von kleineren Gegenständen unterschieden werden soll. FIGS. 3, 4 show a plurality of transmitting devices 14 which are arranged at the same distance from each other below an upper edge of the platform 13. Each of the transmitting devices 14 is assigned a corresponding receiving device 15 on the other side of the platform track area 10 to be monitored. The equidistant arrangement of the transmitting devices 14 and of the corresponding receiving devices 15 along the track track area 10 to be monitored results in detail FIG. 4 , The preferred distance between the active radar lines, ie on the one hand between the adjacent transmitting devices 14 and on the other hand between the adjacent receiving means 15 is about 15 cm. It is based on the fact that a test specimen with a diameter of 30 cm should be reliably recognized and distinguished from smaller objects.

Gemäß Figur 7 sind sowohl die Sendeeinrichtungen 14 als auch die Empfangseinrichtungen 15 über jeweils einen Datenbus 16, 17 mit einer Auswerteeinrichtung, nämlich einem Rechner 18 verbunden. Der Rechner 18 verfügt gemäßAccording to FIG. 7 Both the transmitting devices 14 and the receiving devices 15 are each connected via a data bus 16, 17 to an evaluation device, namely a computer 18. The computer 18 has according to

Figur 7 des weiteren über eine Schnittstelle 19 zu einem übergeordneten 10 Rechnersystem. Des weiteren sind in Figur 7 Stromversorgungsleitungen 20, 21 und 22 für den Rechner 18 sowie die Sendeeinrichtungen 14 bzw. Empfangseinrichtungen 15 dargestellt. FIG. 7 furthermore via an interface 19 to a superordinate computer system. Furthermore, in FIG. 7 Power supply lines 20, 21 and 22 for the computer 18 and the transmitting devices 14 and receiving devices 15 shown.

Wie oben bereits erwähnt, besteht jeder Radar-Transponder aus einer Sendeeinrichtung 14 und einer entsprechenden Empfangseinrichtung 15. Den Sendeeinrichtungen 14 wird eine Pulsbreite aufgeprägt, die die Empfangseinrichtungen 15 detektieren müssen. Je nach Beeinflussung der Radarstrecken durch einen Zug oder eine Person im zu überwachenden Bahnsteiggleisbereich 10 wird im Rechner 18 die Aufbereitung einer Meldung vorgenommen, ob sich eine Person oder ein Zug im Gefahrraum befindet.As already mentioned above, each radar transponder consists of a transmitting device 14 and a corresponding receiving device 15. The transmitting devices 14 are impressed with a pulse width which the receiving devices 15 must detect. Depending on the influence of the radar routes by a train or a person in the platform track area 10 to be monitored, the preparation of a message is made in the computer 18 as to whether a person or a train is in the danger area.

Figur 1 kann entnommen werden, dass die Sendeeinrichtungen 14 sowie Empfangseinrichtungen 15 zwischen einem Abschnitt 23 zur Unterbringung eines Stromabnehmers und einer Begrenzungslinie 24 des Schienenfahrzeugs angeordnet werden. FIG. 1 can be seen that the transmitting devices 14 and receiving devices 15 are arranged between a section 23 for accommodating a pantograph and a boundary line 24 of the rail vehicle.

Figuren 3 bis 4 kann weiterhin entnommen werden, dass für die aktiven Radarstrecken sowohl in einer horizontalen Überwachungsebene als auch in einer vertikalen Überwachungsebene ein Öffnungswinkel von ca. 25 Grad gewählt wird. Die Empfindlichkeit der Empfangseinrichtungen wird so dimensioniert, dass ein im zu überwachenden Bahnsteiggleisbereich 10 angeordneter Standardprüfkörper 25 (siehe Figur 4) erkannt wird. Der Standardprüfkörper verfügt über einen kreisrunden Querschnitt von 30cm Durchmesser. FIGS. 3 to 4 It can also be seen that an opening angle of approximately 25 degrees is chosen for the active radar lines both in a horizontal surveillance plane and in a vertical surveillance plane. The sensitivity of the receiving devices is dimensioned such that a standard test body 25 arranged in the platform track area 10 to be monitored (see FIG FIG. 4 ) is recognized. The standard test specimen has a circular cross-section of 30cm diameter.

Das erfindungsgemäße Messprinzip basiert nun darauf, dass der Empfangspegel ein Maß für die Abschattung ist. Um den Standardprüfkörper 25 zu erkennen, wenn dieser innerhalb des zu überwachenden Gefahrraums angeordnet ist, ist bei Zugrundelegung der bereits erwähnten Abmessungen sowie Öffnungswinkel die nächste aktive Radarstrecke in einem Abstand von höchstens 30 cm in Längsrichtung der Bahngleise anzuordnen. Eine höhere Fehlersicherheit lässt sich jedoch mit einem Abstand von nur 15 cm erreichen. Wie Figur 7 entnommen werden kann, werden jeweils acht Sendeeinrichtungen 14 bzw. Empfangseinrichtungen 15 zu Sendeeinheiten 26 bzw. Empfangseinheiten 27 zusammengefasst. Bei einem Abstand von nur 15 cm zwischen den benachbarten Sende- bzw. Empfangseinrichtungen 14, 15 können auch sechzehn Sendeeinrichtungen 14 und Empfangseinrichtungen 15 zu Sendeeinheiten 26 bzw. Empfangseinheiten 27 zusammengefasst werden.The measuring principle according to the invention is based on the fact that the reception level is a measure of the shading. In order to recognize the standard test body 25, if this is arranged within the danger space to be monitored, is based on the already mentioned dimensions and opening angle to arrange the next active radar route at a distance of at most 30 cm in the longitudinal direction of the railway tracks. However, a higher failure safety can be achieved with a distance of only 15 cm. As FIG. 7 In each case, eight transmitting devices 14 or receiving devices 15 are combined to transmit units 26 or receiving units 27. At a distance of only 15 cm between the adjacent transmitting and receiving devices 14, 15 and sixteen transmitting devices 14 and receiving devices 15 to transmit units 26 and receiving units 27 can be summarized.

Wie sich aus Figur 4 ergibt, deckt eine Sendeeinrichtung 14 bei dem vorliegenden Ausführungsbeispiel eine gewisse Anzahl von Empfangseinrichtungen 15 ab. Daher wird in jeder Sendeeinheit 26 immer nur eine Sendeeinrichtung 14 für eine vorgegebene Zeitdauer von vorzugsweise 100 µs aktiviert. In der entsprechenden Empfangseinrichtung 15 wird das aufgenommene Signal auch nur für diese vorgegebene Zeitspanne ausgewertet.As it turned out FIG. 4 results in a transmitting device 14 in the present embodiment, a certain number of receiving devices 15 from. Therefore, only one transmitting device 14 is activated in each transmitting unit 26 for a predetermined period of preferably 100 μs. In the corresponding receiving device 15, the recorded signal is also evaluated only for this predetermined period of time.

Die erfindungsgemäße Vorrichtung ist ein autonom arbeitendes System zur Erfassung von Personen, die in einen Gefahrraum 10 gelangen bzw. sich innerhalb des zu überwachenden Gefahrraums aufhalten.The device according to the invention is an autonomously operating system for detecting persons who enter a danger space 10 or are within the danger space to be monitored.

Figur 5 zeigt ein Blockschaltbild von mehreren zu einer Sendeeinheit 26 zusammengefassten Sendeeinrichtungen 14. Wie bereits erwähnt, werden jeweils acht oder sechzehn Sendeeinrichtungen 14 zu einer Sendeeinheit 26 zusammengefasst. Der Einfachheit halber sind in Figur 5 lediglich die erste sowie die achte Sendeeinrichtung 14 dargestellt. FIG. 5 shows a block diagram of several combined to a transmitting unit 26 transmitting devices 14. As already mentioned, each eight or sixteen transmitting devices 14 are combined to form a transmitting unit 26. For the sake of simplicity, in FIG. 5 only the first and the eighth transmitting device 14 are shown.

Zur Stromversorgung aller zu einer Sendeeinheit 26 zusammengefasster Sendeeinrichtungen 14 dient ein Netzteil 28, das an Stromversorgungsleitungen 29, 30 angeschlossen ist. Weiterhin verfügt die Sendeeinheit 26 zur Ansteuerung aller Sendeeinrichtungen 14 über einen Mikroprozessor 31, der an einen Datenbus 32 angeschlossen ist. Jede Sendeeinrichtung 14, die von dem Mikroprozessor 31 angesteuert und über das Netzteil 28 mit Strom versorgt wird, verfügt über eine Antenne 33, die über ein Hochfrequenzteil 34 angesteuert wird. Das Hochfrequenzteil 34 verfügt über einen Hohlraumresonator 35 mit zugeordneter Gundiode 36. Die Ansteuerung des Hochfrequenzteils 34 bzw. der Gundiode 36 erfolgt über Treiber 37 mit vorgeschaltetem Decoder 38.For the power supply of all combined to a transmitting unit 26 transmitting devices 14 is a power supply 28, which is connected to power supply lines 29, 30. Furthermore, the transmitting unit 26 has control all transmitting devices 14 via a microprocessor 31 which is connected to a data bus 32. Each transmitting device 14, which is controlled by the microprocessor 31 and supplied with power via the power supply 28, has an antenna 33, which is controlled via a high-frequency part 34. The high-frequency part 34 has a cavity resonator 35 with an associated Gundiode 36. The control of the high-frequency part 34 and the Gundiode 36 via driver 37 with upstream decoder 38th

Über den Mikroprozessor 31 erfolgt die Aktivierung der Sendeeinrichtungen 14, wobei die zu einer Sendeeinheit 26 zusammengefassten Sendeeinrichtungen 14 beginnend vom ersten Sender zeitseriell aktiviert werden. Bei einer gewählten Sendezeit von 100 µs und acht zu einer Sendeeinheit 26 zusammengefassten Sendeeinrichtungen ergibt sich ein Sendezyklus von 800 µs.The activation of the transmitting devices 14 takes place via the microprocessor 31, wherein the transmitting devices 14 combined to form a transmitting unit 26 are activated time-series starting from the first transmitter. With a selected transmission time of 100 μs and eight transmit devices combined to one transmission unit 26, a transmission cycle of 800 μs results.

Zu einer Empfangseinheit 27 zusammengefasste Empfangseinrichtungen 15 zeigt Figur 6. Auch die Empfangseinheit 27 ist in einem wasserdichten Gehäuse untergebracht. Jede der acht oder sechzehn zu der Empfangseinheit 27 zusammengefassten Empfangseinrichtungen 15 verfügt über eine Antenne 39 mit zugeordnetem Empfangsmodul 40, wobei jedem Empfangsmodul 40 eine Empfangsdiode 41 zugeordnet ist. Die von den Empfangsdioden 41 empfangenen Signale werden über entsprechende Signalverstärker 42 verstärkt. Die Ausgangssignale der Signalverstärker 42 werden einem Analog-Multiplexer 43 mit nachgeschaltetem Analog/Digital- Wandler 44 zugeführt. Ein Mikroprozessor 45 mit zugeordnetem Codierschalter 46 übernimmt die Auswertung der von den Sendeeinrichtung 15 empfangenen Signalen und überträgt diese an einen Datenbus 47. Zur Stromversorgung der Empfangseinheit 27 ist wiederum ein Netzteil 48 vorgesehen, welches an Stromversorgungsleitungen 49, 50 angeschlossen ist.To a receiving unit 27 summarized receiving devices 15 shows FIG. 6 , Also, the receiving unit 27 is housed in a waterproof case. Each of the eight or sixteen receiving devices 15 combined into the receiving unit 27 has an antenna 39 with an associated receiving module 40, wherein each receiving module 40 is assigned a receiving diode 41. The signals received by the receiving diodes 41 are amplified by respective signal amplifiers 42. The output signals of the signal amplifiers 42 are supplied to an analog multiplexer 43 with a downstream analog / digital converter 44. A microprocessor 45 with associated coding switch 46 takes over the evaluation of the received signals from the transmitting device 15 and transmits them to a data bus 47. For power supply of the receiving unit 27, in turn, a power supply 48 is provided, which is connected to power supply lines 49, 50.

Die Sendeeinrichtungen 14 der Sendeeinheit 26 werden vom Mikroprozessor 45 zeitseriell aktiviert. Die Aktivierung der Empfangseinrichtungen 15 der Empfangseinheit 27 sowie der Sendeeinrichtungen 14 der Sendeeinheit 26 läuft parallel ab und dauert wiederum insgesamt 800 µs, wenn jede der acht Sendeeinrichtungen 15 für 100 µs aktiviert wird. Bei sechzehn Sendeeinrichtungen 14 dauert der Sendezyklus entsprechend 1600 µs. Die Anzahl der Sende- und Empfangseinrichtungen 14, 15 in einer Sende- bzw. Empfangseinheit 26, 27 und die Zeit der Aktivierung kann frei angepasst werden.The transmitting devices 14 of the transmitting unit 26 are activated by the microprocessor 45 time series. The activation of the receiving devices 15 of the receiving unit 27 and of the transmitting devices 14 of the transmitting unit 26 takes place in parallel and in turn lasts a total of 800 μs when each of the eight transmitting devices 15 is activated for 100 μs. With sixteen transmitting devices 14, the transmission cycle lasts for 1600 μs. The number of transmitting and receiving devices 14, 15 in a transmitting or receiving unit 26, 27 and the time of activation can be freely adjusted.

Wenn mehrere Sende- und Empfangseinheiten 26, 27 nacheinander betrieben werden, wertet der Mikroprozessor die Signale der Empfangseinrichtungen 15 der unterschiedlichen Empfangseinheiten 27 so aus, dass auch Empfangseinrichtungen 15 unterschiedlicher Empfangseinheiten 27 zeitlich miteinander verglichen werden können.If a plurality of transmitting and receiving units 26, 27 are operated in succession, the microprocessor evaluates the signals of the receiving devices 15 of the different receiving units 27 such that receiving devices 15 of different receiving units 27 can be compared with one another in terms of time.

Wenn beispielsweise ein Zug in den Überwachungsbereich einfährt, wird das Signal einer Empfangseinrichtung nach der anderen anzeigen, dass sich ein Körper im Bahnsteiggleisbereich befindet. Durch die rasch ansteigende Zahl von Empfangseinrichtungen mit diesem Signal und der Möglichkeit, die Geschwindigkeit dieses Körpers zu ermitteln, kann das System aufgrund der Signalaufbereitung erkennen, dass es sich bei dem Körper um eine einfahrenden Zug handelt und gleichzeitig dessen Geschwindigkeit bestimmen. Zeigen die Signale der Empfangseinrichtungen 15 dagegen an, dass sich ein Körper im Überwachungsbereich nur langsam bewegt und während der Bewegung nur wenige Empfangseinrichtungen 15, die mit der Bewegung mitwandern, einen Körper im Überwachungsbereich anzeigen, deutet dies auf einen Menschen in diesem Bereich hin. In diesem Fall wird eine Meldung ausgegeben. Entsprechendes gilt für einen stationären Körper, der nur das Signal weniger nebeneinanderliegender Empfangseinrichtungen 15 beeinflusst.For example, when a train enters the surveillance area, the signal from one receiver to another will indicate that a body is in the platform track area. Due to the rapidly increasing number of receiving devices with this signal and the ability to determine the speed of this body, the system can recognize due to the signal processing that the body is an incoming train and at the same time determine its speed. On the other hand, if the signals from the receiving devices 15 indicate that a body is moving slowly in the surveillance area and only a few receiving devices 15 that move with the movement display a body in the surveillance area during the movement, this indicates a person in this area. In this case, a message is issued. The same applies to a stationary body, which only affects the signal of fewer adjacent receiving devices 15.

Mit Hilfe des beschriebenen erfindungsgemäßen Systems ist eine Gefahrraumüberwachung auf einfache Art und Weise realisierbar. Je nach zu überwachendem Gefahrraum ist die Anzahl der Sendeeinrichtungen und Empfangseinrichtungen bzw. Sendeeinheiten und Empfangseinheiten festzulegen.With the aid of the described system according to the invention, danger space monitoring can be realized in a simple manner. Depending on the danger space to be monitored, the number of transmitting devices and receiving devices or transmitting units and receiving units must be determined.

Claims (8)

  1. A device for monitoring a station platform track area with several transmitting devices (14) that are arranged along a first edge of the station platform track area (10) and several receiving devices (15) that are arranged opposite thereof on the other side of the station platform track area (10), characterized in that a transmitting device (14) and the respectively corresponding receiving device (15) respectively form a transponder section in the form of an active radar section, in that several transponder sections are arranged transverse to the trackway of a rail vehicle at a predetermined distance, and in that several transmitting devices (14) are combined into a transmitting unit (26) and several receiving devices (15) are combined into a receiving unit (27), wherein several transmitting units (26) and several receiving units (27) can be arranged along the station platform track area (10) and the transmitting units (26), as well as the receiving units (27), are connected to an evaluation device (18) via a common data bus (16, 17).
  2. The device according to Claim 1 or 2, characterized in that the distance between two adjacently arranged transmitting or receiving devices (14, 15) corresponds to half the desired resolution of the monitoring device.
  3. The device according to Claim 1 or 2, characterized in that the transmitting devices (14) and the respectively corresponding receiving devices (15) can be time-serially activated in succession.
  4. The device according to one of the preceding claims, characterized in that the transmitting devices (14) in a transmitting unit (26) and the corresponding receiving devices (15) in the corresponding receiving unit (27) can be time-serially activated in succession and several transmitting and receiving units can be operated parallel to one another.
  5. The device according to one of the preceding claims, characterized in that at least one microprocessor (31, 45) is provided, wherein said microprocessor (31, 45) is designed for controlling the transmitting devices (14), the receiving devices (15), a transmitting unit (16) and/or a receiving unit (27) and/or for evaluating the sensor data, particularly for identifying a body in the station platform track area (10) and for detecting its moving direction and/or speed.
  6. A method for monitoring a station platform track area, particularly with a device according to one of Claims 1 to 7 , wherein several transmitting devices (14) that are arranged along a first edge of the station platform track area (10) and receiving devices (15) assigned thereto on the other side of the station platform track area (10) respectively form a transponder section and the signals of the receiving devices (15) are evaluated, characterized in that the transponder section is realized in the form of an active radar section, in that several transmitting devices (14) are combined into a transmitting unit (26) and several receiving devices (15) are combined into a receiving unit (27), in that the transmitting units (26), as well as the receiving units (27), are connected to an evaluation device (18) via a common data bus (16, 17), and in that a body is detected in the station platform track area when the signal of at least two adjacently arranged receiving devices (15) indicates a body in the station platform track area.
  7. The method according to Claim 6, characterized in that the number of the directly adjacent receiving devices (15), the signal of which indicates a body in the station platform track area, is determined.
  8. The method according to Claim 6 or 7, characterized in that the transmitting and receiving devices (14, 15) are time-serially activated in succession and the speed and/or moving direction of a body in the station platform track area is determined from on the time information.
EP02008971A 2001-04-20 2002-04-22 Trackside platform area monitoring device and method Expired - Lifetime EP1251055B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20106818U DE20106818U1 (en) 2001-04-20 2001-04-20 Device for monitoring a platform track area at stops
DE20106818U 2001-04-20

Publications (2)

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EP1251055A1 EP1251055A1 (en) 2002-10-23
EP1251055B1 true EP1251055B1 (en) 2009-12-02

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EP02008971A Expired - Lifetime EP1251055B1 (en) 2001-04-20 2002-04-22 Trackside platform area monitoring device and method

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EP (1) EP1251055B1 (en)
AT (1) ATE450426T1 (en)
DE (2) DE20106818U1 (en)
DK (1) DK1251055T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVE20040026A1 (en) * 2004-06-11 2004-09-11 Tecnogramma S P A METHOD OF DETECTION OF SIZES CHARACTERISTICS OF AN OBJECT IN MOVEMENT AND EQUIPMENT TO IMPLEMENT THE METHOD.
CN108515987A (en) * 2018-03-30 2018-09-11 南京理工大学 A kind of accurate parking method of urban track traffic laser positioning

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3805061A (en) 1973-04-23 1974-04-16 Tyco Laboratories Inc Object detecting apparatus
DE2656706C2 (en) * 1976-12-15 1986-04-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Device for detecting obstacles between the barriers of a level crossing on the same rails
JPS59163587A (en) * 1983-03-09 1984-09-14 Fuji Electric Co Ltd Vehicle detecting system
DE4121168A1 (en) * 1991-06-24 1992-06-11 Heinz Peter Optical barrier safety system - is for vehicles on rails and verifies correct location and speed of vehicles entering and leaving sections of track between road crossings
JPH07329772A (en) * 1994-06-10 1995-12-19 Koito Ind Ltd Detecting device for fall of passenger
DE19717662A1 (en) * 1997-04-25 1998-10-29 Krupp Foerdertechnik Gmbh Continuous position detection method for rail vehicles
DE19912219A1 (en) * 1998-09-24 2000-04-20 Vossloh Man Systemelektronik G Method for determining the deceleration or stopping of a moving object, device for carrying out this method and use of this method and this device
DE20020009U1 (en) 2000-11-24 2001-03-01 Ludwig Peter Monitoring system for dispatch control of a train, especially in a subway or S-Bahn, with additional monitoring of the track bed area

Also Published As

Publication number Publication date
DE20106818U1 (en) 2002-06-06
DE50214030D1 (en) 2010-01-14
ATE450426T1 (en) 2009-12-15
EP1251055A1 (en) 2002-10-23
DK1251055T3 (en) 2010-03-22

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