EP2697110B1 - Transportation system - Google Patents

Description

The invention relates to a transport system.

It is known in rail systems to perform a data transmission between a stationary unit and rail-mounted systems via radio waves. However, disturbing crosstalk occurs on nearby sections.

From the DE 37 23 624 A1 a device for signal transmission between a maglev vehicle and track-fixed devices is shown.

From the DE 10 2006 043 481 A1 is a holder for a monorail system known.

From the US Pat. No. 5,927,657 A1 For example, an antenna mounting structure for a conveyor system is known.

From the DE 10 2005 057 273 A1 a communication system for a system with vehicles and line centers is known.

The invention is therefore based on the object, the data transmission in a transport system comprising a rail system to further develop.

According to the invention, the object is achieved in the transport system according to the features specified in claim 1.

Important features of the invention in the transport system are that it has a rail system and a vehicle arranged movably thereon, in particular rail-guided vehicle, the rail system having profile rail parts, which each have a slot waveguide,
wherein a vehicle has antennas which protrude into the opening of the slot waveguide for radio transmission,
wherein the antennas are spaced apart in such a distance A in the rail direction, that an unsupervised radio range of the length B in the rail direction is bridged, in particular therefore the distance A is greater than the length B.

The advantage here is that on the one hand slot waveguide for almost closed leadership of the radio waves can be used and thus a disturbing crosstalk can be avoided and also with radio waves unserved areas can be supplied by the bridging arrangement of the two antennas.

The slot of the slot waveguide runs in the rail direction.

According to the invention, the uncovered radio link area comprises an area of a switch, in particular it does not have a slot waveguide and / or a switch which has a switch piece to be crossed by the vehicle which does not have a radio-guided slot waveguide, in particular a slot waveguide. The advantage here is that the points pieces do not have to be designed with slot waveguide and / or not radio must be powered.

In an advantageous embodiment, the opening, in particular the slot, the slot waveguide and / or the slot waveguide is arranged spursymmetrisch, in particular wherein the antennas each centrally of the opening, in particular slot, the slot waveguide and / or the slot waveguide is arranged. The advantage here is that the antenna remains guided during the movement in the middle of the slot. Thus, an uninterrupted data transmission is possible even when cornering.

According to the invention, the vehicle has a front and a rear module, which in each case has a wheel of the vehicle, in particular drive wheel or carrier wheel of the vehicle,
wherein a connecting means is connected via a pivot bearing with the front and / or via a pivot bearing with the rear module. The advantage here is that the antenna is slightly deflected when cornering or slightly deviations from the rotational axis position slightly from the center. Thus, an uninterrupted data transmission is possible - even when cornering. In addition, a stationary in the slot waveguide antenna device, the high-frequency electromagnetic signals, ie radio waves coupled in the rail direction and against the rail direction, bridged, whereby even when driving over this point undisturbed data transmission is possible.

According to the invention, an antenna is arranged in the region of an axis of rotation of a pivot bearing of the vehicle, in particular wherein the axis of rotation is oriented perpendicular to the rail direction and perpendicular to the shaft axes of lateral guide wheels of the vehicle. The advantage here is that the antenna remains when positioned in the axis of rotation centered to the opening in the slot waveguide.

In an advantageous embodiment, a respective antenna is fixedly connected to the respective module. The advantage here is that the antenna is "hard" out in the middle of the slot of the slot waveguide. A complex movable mechanical guidance of the antennas can thus be omitted.

In an advantageous embodiment, the profile rail part has an upper and a lower cheek connecting wall support portion on which a holding part can be clipped, in which a primary conductor or a sliding conductor can be clipped to power the vehicle, in particular wherein the vehicle has a secondary winding which can be inductively coupled to the stationarily laid primary conductor and electrically connected in parallel or in series with a capacitance such that the associated resonant frequency substantially corresponds to the frequency of the alternating current fed into the primary conductor. The advantage here is that even with deviations from the position of strongest inductive coupling only a slight deterioration of the efficiency occurs.

In an advantageous embodiment, an antenna is arranged in the slot waveguide of a profiled rail part, which is connected to the profile rail part and high-frequency signals in the rail direction and counter to the rail direction in the slot waveguide can be coupled, in particular coupled. The advantage here is that the supplied rail track is increased, especially in comparison to a one-sided coupling of the radio waves.

In an advantageous embodiment, signals generated by an access point are supplied to splinters, so that a plurality of rail sections, in particular slot waveguides of the profile rail parts, can be supplied from the access point,

in particular wherein in each case a split-signal component of an arranged in the slot waveguide of the profile rail part antenna in the rail direction and against the rail direction is coupled into the slot waveguide. The advantage here is that large sections can be supplied with a small number of access points.

In an advantageous embodiment, the switch is made passive, in particular so by shifting a holding part depending on the shift position respective turnout piece can be activated, in particular wherein the activatable switch pieces are fixed to the holding part. The advantage here is that a simple switch is used and no radio wave supply is necessary in the area of the switch.

In an advantageous embodiment, a rolling area for lateral guide wheels is arranged on the profiled rail part, in particular on the upper and lower cheek area, and / or that a rolling area for a wheel, in particular carrying wheel and / or drive wheel of the vehicle, is arranged on a cheek area of the profile rail part , Advantageous is that a tracking on the rail part is executable. On the rail surface, a rolling area for wheels is provided, which introduce the weight of the vehicle in the rail part.

In an advantageous embodiment, a track transmitter, in particular bar code, is arranged on the profile rail part, which can be detected by a vehicle-mounted reading device, in particular a sensor, in particular wherein the track transmitter is arranged on a wall part of the profile rail part, in particular glued. The advantage here is that on the vehicle position determination is easily providable.

In an advantageous embodiment, an electric motor for driving a wheel of the vehicle is arranged on a module, in particular on the front module. The advantage here is that the module carries the engine and has a bearing for the motor-driven wheel, which acts as a drive wheel. In addition, lateral guide wheels are mounted on the module, so that the vehicle remains in the lane due to the lateral guidance.

In an advantageous embodiment, the profile rail part is a continuous casting, in particular an aluminum continuous casting. The advantage here is that a simple and cost-effective production of the rail part is made possible by means of continuous casting.

Further advantages emerge from the subclaims. The invention is not limited to the combination of features of the claims. For the skilled person, further meaningful combination options of claims and / or individual claim features and / or features of the description and / or figures, in particular from the task and / or the task posing by comparison with the prior art arise.

• In der Figur 1 ist ein Ausschnitt einer Schienenanlage gezeigt, welcher eine Weiche 3 aufweist.
• In der Figur 2 ist ein Querschnitt durch das Schienenprofil im Bereich eines auf der Schiene verfahrenden Fahrzeugs gezeigt.
• In der Figur 3 ist eine zugehörige Seitenansicht gezeigt.
• In der Figur 4 ist eine schematische Darstellung der Einkopplung von Hochfrequenz in Schienenabschnitte der Schienenanlage gezeigt.

The invention will now be explained in more detail with reference to schematic illustrations:

• In the FIG. 1 a section of a rail system is shown, which has a switch 3.
• In the FIG. 2 shows a cross section through the rail profile in the area of a traveling on the rail vehicle.
• In the FIG. 3 an associated side view is shown.
• In the FIG. 4 is a schematic representation of the coupling of high frequency in rail sections of the rail system shown.

As in FIG. 1 shown, the system has rail parts on which a vehicle 2 is movable. In this case, at least one passive switch 3 is provided, which must traverse the vehicle 2. The switch 3 is moved by an actuator either in a first or second point position. By means of this method, the corresponding turnout piece to be activated is brought into position.

The rail 4 also has a slot waveguide profile 24, as well as in FIG. 2 is shown in more detail. An antenna 1 protrudes into the slot of the slot waveguide profile 24 which is open to the outside, so that electromagnetic waves can be coupled in and out. At some points of the rail system stationary arranged means for coupling and / or decoupling of the waves are arranged.

Since in the rail direction in the region B of the switch of the slot waveguide has no stationarily arranged means for coupling and / or decoupling, no data exchange with the vehicle is executable.

Therefore, the vehicle 2 in the rail direction at a distance A antennas 1, wherein the distance A is longer than the area B. Thus, data exchange is also possible in the switch area, although the points pieces have no slot waveguide and only the rail profile parts located outside the switch area have slot waveguide areas.

As in FIG. 2 clearly visible, the slot waveguide region 24 is integrally formed on the profile rail part 23. Thus, it can be produced without additional effort together with the profile rail part 23 as a continuous casting.

In this case, the profile rail part 23 has a central wall, which has Abrollbereiche for wheels of the vehicle 20 at its top and bottom.

In this case, on the one hand on the upper side a Abrollbereich for a support wheel 22 is arranged, which at least partially derives the weight of the vehicle 20 to the profile rail part 23.

Abrollbereiche for the lateral guide wheels 21 of the vehicle 20 are arranged laterally. Also on the underside of such lateral guide wheels are rolling on Abrollbereichen, said Abrollbereiche at least partially represent the outer surface of the slot waveguide 24.

The slot waveguide 23 is arranged in a spur-symmetrical manner, that is to say it has a plane of symmetry which is arranged centrally to the left and right rolling regions for the lateral guide wheels 21, as seen in the rail direction. Thus, if a rolling area, for example the left rolling area, is mirrored for lateral guidance on a plane of symmetry, it moves into another rolling area, in particular the right rolling area.

This central arrangement of the slot waveguide region 24 to the rail track allows the vehicle to an antenna 25 is arranged, which is also centrally to the Schlitzhohlleiterberiech 24, in particular centrally to the downwardly directed opening, so slot is arranged.

On the central wall of the profile rail part 23 and undercuts are formed so that a holding part 27 can be clipped, which is preferably made of plastic and in which primary conductor lines are clipped. In this case, the primary conductor is laid as electrical Schläub, in which a medium-frequency alternating current is impressed. There is one Frequency between 10 kHz and 1000 kHz advantageous. To the vehicle out is excellent the leading part of the loop and closer to the wall of the return part of the loop is clipped into the holding part 27. The leading part, ie Hinleiter, is clipped into the Einklipsbereich 28 for primary conductors, especially line conductors, and the return part , ie return conductor, in the Einklipsbereich 29 for primary conductors, in particular line conductors.

On the vehicle, a secondary winding is provided, which is inductively coupled to the primary conductor, wherein the secondary winding such a capacitance is connected in parallel and / or in series, that the associated resonant frequency substantially corresponds to the frequency of the impressed in the primary conductor alternating current. Thus, energy is transferable with a high efficiency, especially in the case of deviations from the position of the maximum inductive coupling.

In addition, a track transmitter is arranged on the holding part 27 or alternatively on the profile rail part 23, such as bar code, so that by means of a corresponding reader or sensor, a determination of the position of the vehicle in the rail system is executable. A preferred location for attaching the track transmitter in the alternative embodiment, the cheeks of the profile rail part 23, wherein the cheeks have the Abrollbereiche for the lateral guide wheels. The cheeks are designed to extend perpendicular to the rail direction and perpendicular to the axis of the lateral guide wheels, so that sufficient surface is available, where then the distance encoder can be applied, for example, is glued.

As in FIG. 3 As shown, the vehicle has a front wheel, that is to say the drive wheel 31, which is driven by an electric motor 30, and a rear wheel, which functions as a mere carrying wheel 32. In order to enable driving through curves, the vehicle has a first rigid module which has the electric motor 30 and on which the drive wheel 31 is mounted. A further module comprises the mounting for the mere support wheel 32. The two modules are connected via a connecting part 33, wherein in the connecting region a rotary bearing is arranged, whose axis of rotation is oriented perpendicular to the rail direction and perpendicular to the axis of the lateral guide wheels 21. At the two modules, the respective antenna 25 is fastened by means of a holding part 34. In this case, the antenna 25 projects into the opening of the slot waveguide in the region X. Preferably, the position of the entry centered to the support wheel or Drive wheel 31 is selected, whereby the antenna 25 is arranged in the region of the axis of rotation between the module and connecting part 33. Thus, when driving through curves, the antenna 25 is always aligned and arranged centrally to the opening. The farther the antenna 25 is located away from the axis of rotation, the further it deviates from the central position for opening the slot waveguide 24 when cornering.

As in FIG. 4 shown, the rail system to an access point 47, with a high-frequency signal for data transmission to splitter is transferable. The outgoing signal from the Access Point 47 is split several times over the in FIG. 4 shown splitter 46, so that the signal to the different rail sections (40, 41, 42, 43, 44, 45) zulleitbar. In FIG. 4 a sixfold splitting is shown. Preferably, the signal split by a splitter 46 is irradiated in a rail by a stationary antenna device arranged centrally in the slot waveguide region in two opposite directions. Thus, many rail sections of only a single access point 47, so even by only a single associated radio modem, with the high-frequency signal for data transmission can be supplied.

In this way, from an access point 47, a large area, so radio cell supplied, which frequent radio cell changes when moving the vehicles in the rail system can be avoided. By avoiding the interference-prone radio cell changes, the error rate during data transmission can be reduced.

Due to the integration of the slot waveguide 24 in the lower cheek area of the rail profile part 23 retrofitting of old systems without slot waveguide in a simple manner executable without the vehicles must be changed - with the exception of the antennas and data transmission means to be installed.

LIST OF REFERENCE NUMBERS

1

antenna

2

vehicle

3

switch

4

rail

20

vehicle

21

lateral guide wheels

22

carrier wheel

23

Shaped bar portion

24

Slot waveguide

25

antenna

26

lateral guide wheels

27

holding part

28

Clipping area for primary conductors, especially line conductors

29

Clipping area for primary conductors, especially line conductors

30

electric motor

31

drive wheel

32

carrier wheel

33

connecting part

34

Holding part for antenna

40

rail section

41

rail section

42

rail section

43

rail section

44

rail section

45

rail section

46

splinter

47

Access point

A

Distance of the antennas on the vehicle

B

Turnout area, so distance without communication

Claims (12)

1. Transportation system, having a rail system and a vehicle (2, 20) movably arranged thereon, thus a rail-guided vehicle (2, 20),
   wherein the rail system has profiled rail parts (23) which each have a slotted waveguide (24),
   wherein a vehicle (2, 20) has antennas (1, 25) which each project into the opening of the slotted waveguide (24) for the purpose of radio transmission, wherein the antennas (1, 25) couple electromagnetic waves into and/or out of the slotted waveguide (24), wherein these radio waves are guided in the slotted waveguide (24),
   wherein the antennas (1, 25) are spaced apart from one another at a distance A in the rail direction such that an unsupplied radio link region of length B can be bridged in the rail direction, wherein the distance A is thus greater than the length B,
   the unsupplied radio link region comprises a region of points (3) which has no slotted waveguide (24), and/or the unsupplied radio link region has points (3) which have a points piece, over which the vehicle (2, 20) is to travel, which has no radio-supplied slotted waveguide (24), thus no slotted waveguide (24),
   characterised in that
   the vehicle (2, 20) has a front and a rear module, each of which has a wheel of the vehicle (2, 20), in particular drive wheel (31) or carrying wheel (32) of the vehicle (2, 20), wherein a connection means is connected via a rotary bearing to the front module and/or via a rotary bearing to the rear module,
   wherein an antenna (1, 25) is arranged in the region of a rotation axis of the rotary bearing of the vehicle (2, 20).
2. Transportation system according to claim 1,
   characterised in that
   the opening, in particular the slot, of the slotted waveguide (24) and/or of the slotted waveguides (24) are arranged track-symmetrically,
   in particular wherein the antennas (1, 25) are each arranged centrally relative to the opening, in particular slot, of the slotted waveguide (24) and/or to the slotted waveguide (24).
3. Transportation system according to at least one of the preceding claims,
   characterised in that
   the rotation axis is oriented perpendicularly to the rail direction and perpendicularly to the shaft axes of lateral guide wheels (21, 26) of the vehicle (2, 20).
4. Transportation system according to at least one of the preceding claims,
   characterised in that
   a respective antenna (1, 25) is firmly connected to the respective module, without an additional movable guide structure.
5. Transportation system according to at least one of the preceding claims,
   characterised in that
   the profiled rail part (23) has a wall support region connecting an upper and a lower cheek, into which region a holding part (27, 34) can be clipped, into which a primary conductor or a contact conductor can be clipped for energy supply of the vehicle (2, 20),
   in particular wherein the vehicle (2, 20) has a secondary winding which is inductively couplable to the stationarily laid primary conductor and to which a capacitance is electrically connected in parallel or in series such that the associated resonant frequency corresponds substantially to the frequency of the alternating current fed into the primary conductor.
6. Transportation system according to at least one of the preceding claims,
   characterised in that
   an antenna (1, 25) is arranged in the slotted waveguide (24) of a profiled rail part (23), which antenna is connected to the profiled rail part (23) and makes couplable, in particular couples, high-frequency signals into the slotted waveguide (24) in the rail direction and opposite to the rail direction.
7. Transportation system according to at least one of the preceding claims,
   characterised in that
   signals generated by an access point (47) are supplied to splitters (46), so that a plurality of rail sections (40, 41, 42, 43, 44, 45), in particular slotted waveguides (24) of the profiled rail parts (23), can be supplied from the access point (47),
   in particular wherein in each case a split signal portion is coupled by an antenna (1, 25), arranged in the slotted waveguide (24) of the profiled rail part (23), into the slotted waveguide (24) in the rail direction and opposite to the rail direction.
8. Transportation system according to at least one of the preceding claims,
   characterised in that
   the points (3) are passively designed, in particular therefore by displacing a holding part (27, 34) a respective points piece dependent on the displacement position is activatable, in particular wherein the activatable points pieces are fixed to the holding part (27, 34).
9. Transportation system according to at least one of the preceding claims,
   characterised in that
   a rolling region for lateral guide wheels (21, 26) is arranged in each case on the profiled rail part (23), in particular on the upper and lower cheek region,
   and/or in that a rolling region for a wheel, in particular carrying wheel (32) and/or drive wheel (31), of the vehicle (2, 20), is arranged on a cheek region of the profiled rail part (23).
10. Transportation system according to at least one of the preceding claims,
    characterised in that
    a distance encoder, in particular bar code, is arranged on the profiled rail part (23), which distance encoder is detectable by a reading device, in particular sensor, arranged on the vehicle (2, 20), in particular wherein the distance encoder is arranged, in particular adhesively bonded, on a wall part of the profiled rail part (23).
11. Transportation system according to at least one of the preceding claims,
    characterised in that
    an electric motor (30) for driving a wheel of the vehicle (2, 20) is arranged on a module, in particular on the front module.
12. Transportation system according to at least one of the preceding claims,
    characterised in that
    the profiled rail part (23) is a continuously cast part, in particular an aluminium continuously cast part.

Images