Transport system having mobile device that can be moved along road section, in particular track

By using slotted steel waveguides and inductively coupled power supply in a track-guided transportation system, the problems of short data transmission distance and corrosion were solved, achieving efficient and low-loss data transmission and power supply, and extending the operating distance.

CN121590922APending Publication Date: 2026-03-03SEW-EURODRIVE (TIANJIN) CO LTD
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Patent Information

Application Number
CN202411157978.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-08-22
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

In existing rail-guided transportation systems, the effective range and transmission efficiency of data exchange links need to be improved, especially in the case of data transmission loss and corrosion between mobile devices and the external environment.

Method used

Design a transportation system in which a slotted waveguide is made of steel plate. Electromagnetic waves are transmitted through an antenna and the cavity of the slotted waveguide. The mechanical stability and corrosion resistance of the steel plate are used to achieve contactless data transmission. Power is supplied through inductive coupling and redundant transmission is achieved by combining capacitors.

Benefits of technology

It achieves efficient and low-loss data transmission and power supply, extends the data transmission range, prevents corrosion of the slotted waveguide, and ensures mechanical stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a transport system having a mobile device that can be moved along a road section, in particular a track, in which, for high-frequency data transmission, a slotted waveguide of the transport system is arranged parallel to the road section, said slotted waveguide surrounding a cavity, the invention relates to a mobile device for a motor vehicle, in particular a motor vehicle, comprising a slotted waveguide having a cavity which opens into the environment via a slot of the slotted waveguide which runs through in the direction of a travel route, in particular in the direction of a track, the mobile device having an antenna which projects through the slot of the slotted waveguide into the cavity of the slotted waveguide, in particular for inputting or outputting electromagnetic waves, the slotted waveguide being made of a steel sheet as a bent part.
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Description

Technical Field

[0001] The present invention relates to a transportation system having a mobile device capable of moving along a route, particularly a track. Background Technology

[0002] As is well known, rail-guided transportation systems include mobile devices that can move along the route, especially the rails. Summary of the Invention

[0003] Therefore, the object of the present invention is to improve a transportation system in which the data exchange link with the mobile device is improved with a higher operating distance.

[0004] According to the present invention, this objective is achieved by a transport system with the features described in claim 1.

[0005] In terms of transportation systems, an important feature of this invention is that the transportation system is designed to have mobile devices capable of moving along a route, particularly a track.

[0006] In this system, slotted waveguides are deployed in parallel with the road sections. The slotted waveguides surround the cavity, and the cavity is opened into the environment through slots / slits that penetrate the slotted waveguides along the direction of the road sections, especially the track direction.

[0007] The mobile device includes an antenna that extends through a slot in the slotted waveguide and into the cavity of the slotted waveguide, specifically for inputting or outputting electromagnetic waves.

[0008] The slotted waveguide is made of steel sheet material and is bent into shape.

[0009] The advantage here is that by moving the mobile device parallel to the slotted extension direction of the slotted waveguide, and during this movement inputting electromagnetic waves into the cavity of the slotted waveguide via an antenna, data can be transmitted contactlessly by the mobile device. The electromagnetic waves propagate in the cavity as a mode of cavity radiation and can be received by another antenna that also extends into the cavity. Therefore, a high data flow rate can be transmitted. The effective distance of data transmission through the cavity of the slotted waveguide is also related at least to the power loss of electromagnetic radiation propagating in the slotted waveguide. For this purpose, a plate made of steel is used as the slotted waveguide. In this way, low power loss and thus high effective distance can be achieved. Furthermore, mechanical and chemical properties suitable for use as a slotted waveguide can be achieved. That is, the plate is bent during manufacturing, in which material failure and corrosion can be avoided.

[0010] In an advantageous design, the sheet metal has less than 0.07% carbon, particularly between 0.04% and 0.06%. This has the advantage of allowing for 90° bending during manufacturing without failure. Furthermore, it prevents corrosion.

[0011] In an advantageous design, the board contains less than 1% silicon, particularly between 0.5% and 0.6%. The advantage of this is that the board exhibits sufficiently high mechanical stability. Furthermore, it is protected against corrosion.

[0012] In an advantageous design, the plate contains less than 2% manganese, particularly between 1.1% and 1.2%. The advantage here is that corrosion is prevented and the slotted waveguide exhibits sufficiently high mechanical stability.

[0013] In an advantageous design, the plate contains less than 0.045% phosphorus, particularly between 0.02% and 0.04%. The advantage here is that corrosion is prevented and the mechanical stability of the slotted waveguide is sufficiently high.

[0014] In an advantageous design, the plate contains less than 0.03% sulfur, particularly between 0.002% and 0.004%. The advantage here is that corrosion is prevented and the slotted waveguide exhibits sufficiently high mechanical stability.

[0015] In an advantageous design, the plate contains between 17.5% and 19.5% chromium, particularly between 18.3% and 18.4%. The advantage here is that corrosion is prevented and the mechanical stability of the slotted waveguide is sufficiently high.

[0016] In an advantageous design, the plate contains between 8.0% and 10.5% nickel, particularly between 8.0% and 8.1%. The advantage here is that corrosion is prevented and the mechanical stability of the slotted waveguide is sufficiently high.

[0017] In an advantageous design, the plate contains less than 0.1% nitrogen, particularly between 0.050% and 0.053%. The advantage here is that corrosion is prevented and the mechanical stability of the slotted waveguide is sufficiently high.

[0018] In a favorable design, the sheet metal is made of stainless steel. The advantage here is that mechanical properties can be optimized, corrosion is prevented, and the mechanical stability of the slotted waveguide is sufficiently high.

[0019] In a favorable design, the sheet metal is made of austenitic stainless steel. The advantage here is that the mechanical properties allow the slotted waveguide to be arranged unsupported / floatingly in the transport system.

[0020] In a favorable design, the slotted waveguide has six curved edges, all of which are designed to be parallel to each other. The advantage here is that the slotted waveguide has only a small number of curved edges, and the bending angle does not exceed 90°.

[0021] In a favorable design, the slotted waveguide is secured to the continuously cast profile component, which acts as a track, by a retaining mechanism.

[0022] The mobile device has multiple wheels that are rotatably supported and roll on the continuously cast profile component. An advantage here is that, during the movement of the mobile device, data can be exchanged contactlessly through the slots in the slotted waveguide via the device's antenna.

[0023] In a favorable design, a primary conductor, designed as a linear conductor, is arranged on the continuously cast profile component, through which a medium-frequency alternating current is applied.

[0024] The mobile device has a secondary winding, which is inductively coupled to the primary conductor.

[0025] The secondary winding is connected in series or parallel with such a capacitor, such that the resonant frequency of the oscillating circuit formed by the capacitor and the secondary winding is equal to the frequency of the alternating current.

[0026] In this system, the secondary winding supplies power to the rectifier, and the DC voltage side connection of the rectifier supplies power to the electrical load of the mobile device, particularly to a power unit designed as a motor. The advantage here is that contactless power supply can be achieved with high efficiency even under conditions of only weak and / or fluctuating inductive coupling.

[0027] In a favorable design, the higher frequency current component is modulated into alternating current.

[0028] Among them, the higher frequency voltage component induced in the secondary winding by the higher frequency current component of the primary conductor can be output capacitively, especially through a capacitor, and can be transmitted to the control electronics of the mobile device.

[0029] The advantage here is that data can be transmitted contactlessly and redundantly in completely different physical ways, namely, specifically as cavity radiation or as inductive transmission.

[0030] Specifically, higher frequency current components are modulated into alternating current, allowing data to be transmitted via inductive coupling between the primary conductor and the secondary winding.

[0031] The higher-frequency voltage component induced in the secondary winding by the higher-frequency current component of the primary conductor can be capacitively output, particularly through a capacitor, and can be supplied to the control electronics of the mobile device.

[0032] In particular, the transport system is configured such that data transmitted via slotted waveguides is also—especially redundantly and contactlessly—transmitted and / or can be transmitted via inductive coupling between the primary conductor and the secondary winding.

[0033] Further advantages are provided by the dependent claims. The invention is not limited to the combination of features of the claims. For those skilled in the art, particularly for purposes proposed and / or by comparison with the prior art, other reasonable combinations of features of the claims and / or individual claims and / or description features and / or drawings are possible. Attached Figure Description

[0034] The present invention will now be described in detail with reference to the schematic diagram:

[0035] Figure 1 An oblique view of a slotted waveguide in a transportation system according to the present invention is shown.

[0036] List of reference numerals in the attached diagram:

[0037] 1. Slotted waveguide

[0038] 2. Flange area

[0039] 3 Connecting Area

[0040] 4. Wall area

[0041] 5 Covered Area Detailed Implementation

[0042] As shown in the attached figure, the transportation system includes a slotted waveguide 1 through which the mobile device can transmit data and move along the slotted waveguide.

[0043] Therefore, the moving device is preferably guided by a guide rail and can thus move in parallel with the extension direction of the slotted waveguide.

[0044] The mobile device has an antenna that passes through a slot in the slotted waveguide, and electromagnetic radiation can be input into the cavity of the slotted waveguide via this antenna. The radiation propagates in the cavity along the extension direction of the slotted waveguide and can be output via another antenna that extends into the cavity and is either fixedly arranged to enable data exchange with the central control unit of the transportation system. Alternatively, this other antenna may be fixed to another mobile device that can exchange data with the first mobile device 1.

[0045] The slots in the slotted waveguide are preferably oriented downwards, or at least so, so that liquid flows out automatically from the internal space.

[0046] The slot is defined by two preferably parallel flange regions 2, which are connected to the housing region of the slotted waveguide 1 via their respective connecting regions 3. Here, the housing region includes a bottom region 5, which is connected to the flange regions 2 via wall regions 4.

[0047] Preferably, these wall regions are parallel to each other, and the normal direction of the flat bottom region 5 is at a 90° angle to the normal direction of the flat wall region 4. The normal direction of the wall region 4 is at an angle less than 90° to the normal direction of the corresponding adjacent connecting region 3.

[0048] These flat flange regions 2 are parallel to the wall region 4.

[0049] The width of the slotted waveguide in the direction transverse to the extension direction of the slotted waveguide, i.e., in particular in the normal direction of the wall region 4, is initially constant with increasing distance from the bottom region 5, in particular where the width is equal to the distance between the wall regions, and then the width decreases proportionally with respect to the distance from the bottom region 5 until the width is equal to the distance between the flange regions 2.

[0050] Preferably, the slotted waveguide 1 is designed as a bent plate.

[0051] As the plate used to manufacture the slotted waveguide 1, austenitic stainless steel plates are used, in particular, which have less than 0.07% carbon. It is preferred to use carbon between 0.04% and 0.06%.

[0052] The board contains less than 1% silicon. Preferably, silicon content is between 0.5% and 0.6%.

[0053] The plate contains less than 2% manganese. Preferably, manganese content is between 1.1% and 1.2%.

[0054] The plate contains less than 0.045% phosphorus. Preferably, phosphorus content is between 0.02% and 0.04%.

[0055] The plate has less than 0.03% sulfur. Preferably, sulfur content is between 0.002% and 0.004%.

[0056] The sheet metal has between 17.5% and 19.5% chromium. Particularly preferred is between 18.3% and 18.4% chromium.

[0057] The plate has a nickel content between 8.0% and 10.5%. It is particularly preferred to use a nickel content between 8.0% and 8.1%.

[0058] The plate contains less than 0.1% nitrogen. Preferably, nitrogen content is between 0.050% and 0.053%.

[0059] Preferably, the percentage data mentioned above is a mass percentage.

[0060] Due to the chemical composition of the stainless steel plate mentioned above, slotted waveguides have high permeability, low hysteresis loss, and good magnetic saturation in inductive transmission, and are particularly suitable for high-frequency electromagnetic radiation, especially cavity waves.

[0061] Stainless steel sheets are also corrosion-resistant and have good mechanical properties.

[0062] For manufacturing, laser cutting tools are used for cutting, and the sheet is bent along the curved edge.

[0063] This method enables the high-precision manufacturing of slotted waveguides.

[0064] In other embodiments of the invention, multiple slotted waveguides of identical design are arranged sequentially in the direction of travel, so that no gaps are formed between adjacent slotted waveguides. Therefore, very long slotted waveguides can be constructed overall, enabling information transmission along the entire travel route. Using the above-described material composition, a large range of information transmission can be achieved due to extremely low loss.

Claims

1. A transportation system having a mobile device capable of moving along a route, particularly a track. The slotted waveguides of the transportation system are deployed in parallel with the travel section. The slotted waveguides surround the cavity, and the cavity is opened into the environment through slots in the slotted waveguides that run along the direction of the travel section, especially the track direction. The mobile device has an antenna that extends through a slot in a slotted waveguide and into a cavity within the waveguide, specifically for inputting or outputting electromagnetic waves. Its features are, The slotted waveguide is made of steel sheet material and is bent into shape.

2. The transportation system according to claim 1, Its features are, The plate has less than 0.07% carbon, especially between 0.04% and 0.06% carbon.

3. The transportation system according to any one of the preceding claims, Its features are, The board has less than 1% silicon, particularly between 0.5% and 0.6% silicon.

4. The transportation system according to any one of the preceding claims, Its features are, The sheet metal contains less than 2% manganese, particularly between 1.1% and 1.2% manganese.

5. The transportation system according to any one of the preceding claims, Its features are, The plates contain less than 0.045% phosphorus, particularly between 0.02% and 0.04% phosphorus.

6. The transportation system according to any one of the preceding claims, Its features are, The plates contain less than 0.03% sulfur, particularly between 0.002% and 0.004% sulfur.

7. The transportation system according to any one of the preceding claims, Its features are, The sheet metal has between 17.5% and 19.5% chromium, and in particular between 18.3% and 18.4% chromium.

8. The transportation system according to any one of the preceding claims, Its features are, The sheet has between 8.0% and 10.5% nickel, particularly between 8.0% and 8.1% nickel.

9. The transportation system according to any one of the preceding claims, Its features are, The plate contains less than 0.1% nitrogen, particularly between 0.050% and 0.053% nitrogen.

10. The transportation system according to any one of the preceding claims, Its features are, The sheet metal is made of stainless steel.

11. The transportation system according to any one of the preceding claims, Its features are, The sheet metal is made of austenitic stainless steel.

12. The transportation system according to any one of the preceding claims, Its features are, The slotted waveguide has six curved sides, all of which are designed to be parallel to each other.

13. The transportation system according to any one of the preceding claims, Its features are, The slotted waveguide is fixed to the continuously cast profile component, which acts as a track, by a retaining mechanism. The moving device has multiple wheels that are rotatably supported and roll on the continuously cast profile component.

14. The transportation system according to any one of the preceding claims, Its features are, A primary conductor, designed as a linear conductor, is arranged on the continuously cast profile component. A medium-frequency alternating current is applied to the primary conductor. The mobile device has a secondary winding that is inductively coupled to the primary conductor. The secondary winding is connected in series or parallel with such a capacitor, such that the resonant frequency of the oscillating circuit formed by the capacitor and the secondary winding is equal to the frequency of the alternating current. The rectifier is fed by the secondary winding, and the electrical load of the mobile device, especially the power unit designed as a motor, is powered by the connection of the DC voltage side of the rectifier.

15. The transportation system according to any one of the preceding claims, Its features are, Higher frequency current components are modulated into alternating current, allowing data to be transmitted via inductive coupling between the primary conductor and the secondary winding. A higher-frequency voltage component induced in the secondary winding by the higher-frequency current component of the primary conductor can be capacitively output, particularly through a capacitor, and can be supplied to the control electronics of the mobile device. In particular, the transport system is configured such that data transmitted via the slotted waveguide is also—especially redundantly and contactlessly—transmitted and / or can be transmitted via inductive coupling between the primary conductor and the secondary winding.