SELF-DRIVING PLATFORM FOR SIMULATING TRAFFIC SITUATIONS

DE502021009865D1Active Publication Date: 2026-03-124ACTIVESYST
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-12-23
Publication Date
2026-03-12

AI Technical Summary

Technical Problem

Existing platforms for simulating traffic situations with driver assistance systems or autonomous vehicles are prone to damage when vehicles collide during testing, necessitating a design that allows vehicles to drive over the platform without causing harm.

Method used

A platform with a thin base body and roller elements, featuring a mounting area for dummies and functional elements, designed to be driven over without damage, incorporating features like controllable fastening devices, radar-absorbing surfaces, and a drive train that pivots under load to absorb impact forces.

Benefits of technology

The platform effectively prevents damage from vehicle collisions while minimizing measurement errors by reducing the thickness of the mounting area and absorbing radar signals, ensuring accurate sensor readings and robustness against impacts.

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Description

Technical field

[0001] The present invention relates to a platform for a dummy for simulating traffic situations. Background of the invention

[0002] Motor vehicles are increasingly being equipped with driver assistance systems to actively support the driver in certain traffic situations and reduce the risk of accidents. For example, modern driver assistance systems can influence the braking function or the steering of the vehicle.

[0003] Furthermore, autonomously driving vehicles are used in modern traffic areas, in which the vehicle steers fully automatically through the traffic of a specific traffic area without the driver actively participating in the driving behavior of the vehicle.

[0004] Testing motor vehicles with driver assistance systems or testing autonomous vehicles requires simulating complex traffic scenarios with a large number of road users.

[0005] Mobile platforms are known on which a desired dummy, such as a vehicle or a human body, can be mounted. However, in the event of malfunctions in the driver assistance systems, collisions can still occur unintentionally or intentionally during a test, causing the vehicle under test to drive over the platform. When the vehicle drives over the platform, it should ideally remain undamaged, and the platform should also be available for further testing. Patent document US 2013 / 162479 A1 discloses a platform for carrying a dummy to simulate traffic situations, comprising a flat base body that is movable via roller elements, a mounting area for the dummy, and an installation area for functional elements, wherein the platform is designed to be flat enough to be driven over by a vehicle. Description of the invention

[0006] It is an object of the present invention to provide a moving platform on which a dummy can be attached, wherein the platform is designed in such a way that a collision vehicle can drive over the platform without damage.

[0007] This problem is solved with the subject matter of the independent claim.

[0008] According to a first aspect of the present invention, a platform for a dummy for simulating traffic situations is described. The platform comprises a base body, which has a base surface and a surface formed opposite the base surface, and at least one roller element, which is arranged on the base surface. The roller element is designed such that the base body can be moved along a floor by means of the roller element, the base body having a mounting area and an installation area. A mounting device for attaching the dummy is provided on the mounting surface of the mounting area, and functional elements can be installed in the installation area. The base body is designed to be so thin that a collision vehicle can drive over it without damage.

[0009] According to another aspect, a procedure for operating the platform described above, as well as a procedure for manufacturing the platform described above, are described.

[0010] The vehicle to be tested (collision vehicle) can, for example, be a self-moving object, such as a vehicle like a car, truck, bus or bicycle.

[0011] The dummy attached to the platform is, for example, a humanoid dummy positioned standing, lying down, or sitting. Furthermore, the dummy can represent a vehicle or bicycle.

[0012] The platform consists of a base body, which has a plate-like shape. This means that its extent within a plane of the ground is significantly greater than its thickness in, for example, the vertical direction. The base body has a base surface and an opposing surface. The base body is placed on a floor with its base surface parallel to the ground or the plane of the ground. At least one roller element is rotatably mounted on the base surface, projecting at least partially from the base body and thus providing a gap between the base body and the ground. A fastening device is integrated into the surface. This fastening device is configured to secure the dummy.Furthermore, the fastening device can be designed to be controllable in order to selectively release the test object, for example shortly before an impact situation, so that the fastening between the base body and the test object is released.

[0013] The ground plane (horizontal plane) is used as the reference system in the following, whereby, if the platform rests on the ground, the ground surface is parallel to the ground plane. The ground plane is thus defined by an x-axis (for example, in the direction of travel of the platform) and a y-axis. The x-axis and y-axis therefore lie in the ground plane. The z-axis (vertical) runs perpendicular to the ground plane and thus parallel to the normal to the ground plane.

[0014] The platform features an installation area where all functional elements, such as drive units and communication units, are located. The dummy is attached to the mounting surface within this area. Along the base, the platform is divided into the mounting area and the installation area.

[0015] The fastening device can, for example, consist of a hook system into which the dummy can be suspended. Furthermore, the fastening device can include a magnet, in particular a controllable electromagnet, to attach the dummy to the surface by means of magnetic holding force.

[0016] At least one roller element is arranged on the base surface. In a preferred embodiment, three or four roller elements can be arranged at intervals on the base surface of the base body. This ensures high rolling stability and good controllability of the platform. The roller element can consist, for example, of rubber rollers, hard plastic rollers, or plastic rollers.

[0017] The platform can be moved along the floor by means of at least one roller element. A pulling mechanism, such as a cable or rod, can be attached to the base to pull the platform above the floor. Alternatively, the base can be mounted on a guide rail, allowing the roller element to move along the guide rail. Finally, the platform can be freely movable by having the roller element itself driven, as described in more detail below.

[0018] According to the invention, the platform is designed to be so thin that a collision vehicle can drive over the base body without sustaining damage. Preferred embodiments are described below, all of which contribute to a thin and robust design of the platform according to the invention: According to a first exemplary embodiment, the base body is designed in a stepped manner, wherein, in particular, the fastening thickness between the base surface and the surface in the fastening area, especially 30 mm, 25 mm, 20 mm, 15 mm, 10 mm, or 5 mm, is smaller than the installation thickness between the base surface and the surface in the installation area. The minimum difference between the installation thickness and the fastening thickness is, for example, at least 1 mm to 2 mm in the case of the stepped design.

[0019] According to another exemplary embodiment, the fastening thickness is less than 40 mm, in particular less than 35 mm, less than 30 mm, less than 25 mm, less than 20 mm, less than 15 mm, less than 10 mm. The installation thickness can be less than 60 mm, less than 55 mm, in particular less than 50 mm, less than 45 mm, less than 40 mm, less than 35 mm, less than 30 mm, less than 25 mm, less than 20 mm, less than 15 mm, less than 10 mm. The maximum thickness of the platform between a ground support of the roller element (i.e. the area of ​​the roller element that is furthest from the surface of the platform when the platform is unloaded and resting on the ground) on the ground and the surface, in particular the installation area, is less than 60 mm, less than 55 mm, in particular less than 50 mm, 45 mm, 40 mm or 35 mm.However, with a homogeneous, stepless platform, the maximum thickness can also occur in the fastening area. In other words, in a stepless platform design, the fastening thickness can be equal to the installation thickness.

[0020] The platform thus has two areas of different thicknesses. The thicker installation area houses the functional elements, which typically require a greater thickness. The mounting area, to which the dummy is attached, contains, for example, only non-powered roller elements, eliminating the need for any additional thicker functional elements. Therefore, the mounting area can be thinner than the installation area. This ensures that only the necessary thickness for the functional elements is used, while the other areas, particularly the mounting area, can be designed with the thinnest possible thickness. A particular advantage is the ability to provide an extremely thin mounting area, allowing the dummies attached to it to be positioned very close to the ground.This leads to a reduction in measurement errors by sensors in driver assistance systems, since, for example, the base of a dummy is almost at the same level as the ground, with only the thin installation area of ​​the platform separating them. Thus, a real dummy, such as a pedestrian walking on the ground, can be realistically simulated.

[0021] According to another exemplary embodiment, the fastening area comprises more than 30%, in particular more than 40%, 50%, or 70%, of the surface of the base body. In particular, the thin fastening area can occupy more than half the area within the base plane of the platform, so that only a smaller installation area needs to have a greater thickness for the functional elements.

[0022] According to a further exemplary embodiment, a transition zone is formed between the installation area and the mounting area, wherein the surface in the transition zone has an angle to the surface in the installation area (and / or the mounting area) of between 5° and 45°, in particular between 5° and 15°. The angle is measured, in particular, between the plane (or its normal) in which the transition zone lies and the ground plane (or its normal). Particularly when the transition zone is designed with an inclined profile, direct back-emission of sensor beams, such as radar waves, can be avoided.In particular, compared to a step-shaped transition (angle = 90°), where the radar waves are directly reflected back, at this angle, especially in the smaller angular ranges of the transition area shown above, the radar waves are emitted especially towards the sky (vertically) and thus do not cause any measurement errors.

[0023] According to a further aspect of the present invention, the base body has outer edge regions surrounding the mounting area and / or the installation area, wherein the outer edge regions are wedge-shaped and wherein at least one wedge-shaped outer edge region has an opening angle of approximately less than 25°. The wedge-shaped outer edge regions thus form a ramp over which the collision vehicle can gently access the deck surface or the surface of the platform and traverse the entire platform. The opening angle is measured, in particular, between the ground plane (or its normal plane) and the plane (or its normal plane) in which the surface of the wedge-shaped outer edge regions runs. Likewise, the wedge-shaped outer edge regions reflect sensor radiation with a vertical component, thus reducing the risk of measurement errors.

[0024] According to another exemplary embodiment, the outer edge regions have a radiation-absorbing, in particular radar-wave-absorbing, surface. The surface has, for example, IR / RAM coatings (infrared IR; radar-wave-absorbing material RAM). Such coatings exhibit radar-absorbing properties with low emissions in the relevant infrared wavelength ranges. For example, dielectric IR coatings can be used. Such materials consist of an IR top layer and an underlying RAM or a quasi-homogeneous mixture of RAM and IR material, for example, C-Ram Paint (U,S,E) HP or C-Ram Paint (U,S,E) VHP from Cuming Microwave (Technical Bulletin 340-1). Such a coating achieves, for example, an absorption of approximately -30 dB in a frequency band of 8-18 GHz.

[0025] According to another exemplary embodiment, the surface has a grey coating, in particular RAL 7005 or RAL 7035.

[0026] Due to the absorbing nature of the radiation-absorbing, especially radar-wave-absorbing, surface of the outer edge regions, measurement errors can thus be reduced.

[0027] According to another exemplary embodiment, the surface in the area of ​​the roller element has a dome-shaped cover. This allows roller elements with a larger roller radius to be used despite a narrow installation area. The necessary installation space is created by the dome-shaped cover. Furthermore, due to the dome shape, the sensor radiation is not reflected directly back, but with a vertical component, thus reducing measurement errors. The dome-shaped cover can also be coated with signal-absorbing paint, e.g., gray (e.g., RAL 7005 or RAL 7035).

[0028] According to a further exemplary embodiment, the platform also has a drive train comprising a drive unit, wherein the roller element is coupled to the drive unit for transmitting a drive torque. The drive train and the roller element are coupled one behind the other along an axial direction such that the drive train together with the roller element is at least partially located in a receiving opening in the base surface of the base body, wherein the drive train with the roller element is arranged to pivot in and out of the receiving opening.

[0029] The term "platform drivetrain" encompasses all components within the platform that generate power for propulsion and transmit it to the roller element or the ground. The drivetrain includes the drive unit, in particular an electric motor, which transmits the corresponding drive torque via a drive shaft to the rotating shaft of the roller element to drive it.

[0030] The drive train can, for example, comprise a housing or a supporting structure in which all functional mechanical components, such as the drive unit or bearings for the shafts, are arranged. According to the invention, the drive train is pivotably mounted on the base body so that, under load (in particular, the weight force from a vehicle driving over it in the vertical direction), the drive train, together with the roller element, is pivoted towards the platform in order to dampen the load and, if necessary, to safely store the roller element together with the drive train in a receiving area, for example, in an installation box, so that no further weight force from the vehicle being transferred to the drive train and the roller element. This is particularly possible if, in a pivoted state, the drive train and the roller element are positioned within a receiving area of ​​the platform or...The entire weight of the platform and the impact force of the vehicle passing over it is transferred through the base body into the ground and no longer via the roller element. This allows for a thin platform that is extremely robust against heavy impacts from vehicles (for example, heavy-duty trucks).

[0031] According to another exemplary embodiment, the drive unit has a drive shaft and the roller element has a rotary shaft, wherein the drive unit and the roller element are arranged such that the drive shaft and the rotary shaft run parallel to the axial direction.

[0032] According to another exemplary embodiment, the drive unit and the roller element are arranged such that the drive shaft and the rotating shaft run coaxially.

[0033] According to another exemplary embodiment, the drive train includes a gear unit, in particular a planetary gear, which is arranged between the drive shaft and the rotating shaft such that the drive torque of the drive shaft can be transmitted to the rotating shaft. This allows, for example, the use of less powerful drive units (electric motors) to still generate sufficient drive torque for the roller element. These less powerful drive units can, in turn, be made thinner, further reducing the overall thickness of the platform.

[0034] According to another exemplary embodiment, the drive train includes a further drive unit (for example, another electric motor), wherein the further drive unit is coupled to the transmission unit in such a way that a further drive torque can be transmitted from the drive shaft to the rotating shaft. In particular, the drive unit and the further drive unit can be arranged in series and thus generate the drive torque on the drive shaft along a common axial direction. Alternatively, the drive unit and the further drive unit can be connected in parallel and thus transmit the corresponding drive torques to the drive shaft side by side, for example, via a planetary gear set as described below.

[0035] According to another exemplary embodiment, the transmission unit comprises a planetary gear set with at least a first and a second planet gear, wherein the drive unit is coupled to the first planet gear and the further drive unit is coupled to the second planet gear. The rotating shaft is, for example, a ring gear with the planet gears running on its inner surface.

[0036] According to another exemplary embodiment, the drive train has, particularly at an axial end, a rotary pin which forms a pivot axis, wherein the rotary pin is coupled to the base body. The pivot axis extends transversely to the axial direction of the drive train. In particular, the rotary pin is coupled to the base body by means of a sliding bearing. Alternatively, ball or roller bearings can also be used.

[0037] According to another exemplary embodiment, the drive train has an electrical coupling point at its axial end for connecting an electrical plug. In particular, the coupling point is formed in the region of the pivot axis, so that pivoting the drive train generates hardly any relative movement of the coupling point and thus of the electrical plug. This reduces the load on the mounting and wear of the connector. Furthermore, it can be designed with simpler means to ensure a tighter seal.

[0038] According to another exemplary embodiment, the electrical plug is connected to the coupling point in a watertight manner, in particular by means of an adhesive connection and / or a heat shrink tubing connection.

[0039] According to another exemplary embodiment, the platform has a pivot spring which is arranged between the drive train and the base body such that a pivoting movement of the drive train relative to the base body can be damped in a defined manner. This allows vibrations to be dampened during movement of the platform over the ground. In addition, the pivoting speed under load can be reduced. The pivot spring can, for example, be a leaf spring or a coil spring.

[0040] According to another exemplary embodiment, the pivot spring has a degressive spring characteristic curve, which reduces the spring force as the compression of the drive train into the receiving opening increases.

[0041] According to another exemplary embodiment, the pivot spring, in particular as a helical spring, generates a spring force along a spring force direction, wherein the pivot spring is arranged between the base body and the drive train such that the spring force has an angle between 20° and 70°, in particular between 40° and 50°.

[0042] The pivot direction is tangential and circumferential around the pivot axis. Essentially, the pivot direction has a vertical component, specifically a vertical axis. Furthermore, the pivot direction is defined within a damping plane formed by the yz axes and having a normal nD parallel to the x-axis. The weight of platform 100 and the vehicle crossing it acts vertically, parallel to the normal of the ground plane. The pivot spring is arranged at an angle to the normal of the ground plane such that the spring force of the pivot spring, and consequently its extension direction, is not parallel to the pivot direction or to the weight force, but rather at the specified angle. This results in the pivot spring being compressed when the drivetrain compresses in the pivot direction, and the pivot spring buckling under the weight force in a defined manner.This buckling causes the spring force to be reduced, and consequently, a lower spring force is set at greater spring travel due to the buckling. This results in the degressive spring characteristic curve.

[0043] According to another exemplary embodiment, the drive train has a roller mounting unit to which the roller element can be interchangeably attached, the roller mounting unit being rotatable about the axial direction. The roller mounting unit is, for example, rotationally fixed to the drive shaft so that when the drive shaft rotates, the roller mounting unit also rotates. The roller mounting unit has, for example, mounting holes for a fastening element to fix the roller element to the roller mounting unit in a rotationally fixed manner.

[0044] According to a further exemplary embodiment, the roller element can be detachably fastened to the roller mounting unit by means of a fastening screw, in particular by means of only one, wherein the screw-in direction of the fastening screw is, in particular, parallel to the axial direction (of the rotating shaft and the drive shaft). In particular, the drive shaft and the rotary table can be coaxial and have a common axial direction. The roller mounting unit has, in particular, a receiving bore extending in the axial direction at its center or midpoint. The roller element has a through-opening at its midpoint through which the fastening screw is inserted and fixed in the receiving bore of the roller mounting unit.

[0045] According to another exemplary embodiment, the roller element has a first contact surface and the roller mounting unit has a second contact surface, wherein the first contact surface and the second contact surface have corresponding toothed elements to provide a positive-locking coupling. By means of this positive-locking coupling, the roller element is fixed to the roller mounting unit in a rotationally fixed manner. The mounting screw thus presses the roller element axially against the roller mounting unit, and the toothed elements prevent the roller element from rotating relative to the roller mounting unit.

[0046] According to another exemplary embodiment, the corresponding gear elements are designed such that a Hirth gear connection can be provided. The Hirth gear connection forms a positive-locking connection. Since the teeth (protrusions) and recesses of a planar splined connection interlock firmly and do not roll against each other, the teeth lie statically and flat against one another. The teeth and recesses are arranged radially, conically, and thus center the roller element relative to the roller mounting unit.

[0047] According to another exemplary embodiment, the corresponding toothing elements are designed as hemispherical protrusions and corresponding hemispherical recesses. When the protrusions and recesses interlock, a positive-locking connection is created; the hemispherical design also generates a centering effect. This allows the roller element to be quickly and easily detached and attached.

[0048] According to another exemplary embodiment, the platform further comprises a power board, which is arranged in the base body, particularly in the installation area. The platform also includes at least one battery cell, which is coupled to the power board in such a way that the power board enables charging of and current draw from the battery cell. In particular, several battery cells can be coupled to the power board. These can be charged together or separately by means of a logic circuit in the power board, or the same or different power can be drawn from the battery cells. Battery cells are, in particular, single cells with a housing and an internal battery volume, as well as associated external terminals. The battery cells can be individually removed from or attached to the base body.The battery cells are not accumulators, in particular because a large number of battery cells are integrated into a common housing and cannot be removed individually.

[0049] According to another exemplary embodiment, the platform has at least two battery cells, wherein the battery cells are connected in parallel.

[0050] According to another exemplary embodiment, the individual voltages of the battery cells are highly modulatable. In other words, the voltages of the individual battery cells can be combined, or added together, to generate a desired total power output. The power board can, in particular, feature intelligent or logical power control and draw the desired nominal power from the individual battery cells depending on the power demand. Specifically, a different nominal power output can be drawn from each battery cell, or the same nominal power output can be drawn from all battery cells.

[0051] According to another exemplary embodiment, wherein the platform has more than 10, in particular more than 16, battery cells.

[0052] According to another exemplary embodiment, at least one of the battery cells is designed as a lithium titanate battery with a nominal voltage between 1.2 V and 3 V, in particular 2.4 V.

[0053] According to another exemplary embodiment, at least one of the battery cells is designed as a flat battery with a square perimeter and a thickness of less than 22 mm, in particular less than 14 mm. Thus, a large number of flat batteries or battery cells can be arranged side by side along the ground plane, resulting in a low platform height.

[0054] According to another exemplary embodiment, at least one of the battery cells has a first pole formed with a first contact pin and a second pole formed with a second contact pin. The first contact pin and the second contact pin are coupled to corresponding sockets on the power board.

[0055] According to another exemplary embodiment, the first and second contact pins have different lengths. This allows the positive or negative terminal of the corresponding shorter contact pin to be disconnected first when disconnecting the battery cell from the power board, and only later the positive or negative terminal of the longer contact pin. This prevents a short circuit when replacing a battery cell.

[0056] According to another exemplary embodiment, the base body has at least two electrical contact surfaces that are freely accessible from outside the platform. The contact surfaces are electrically connected to the power board, and the two electrical contact surfaces are designed in such a way that sliding contacts can be provided with contact points of a stationary charging station. For example, the platform can move into a charging station and, at a certain charging position, establish an electrical connection between the sliding contact of the platform and the sliding contact in the charging station.

[0057] Furthermore, electrical contact surfaces can also be formed that are located below the surface or close to the platform's base and are not freely accessible from the outside. For example, the platform can move into a charging position within an inductive charging station. In this way, the platform's battery cells can be charged via inductive charging.

[0058] According to another exemplary embodiment, the platform further comprises at least one antenna module, in particular a WLAN or a GPS antenna module, wherein the base body has a receiving opening on its surface in which the antenna module is arranged.

[0059] According to another exemplary embodiment, the antenna module is arranged in the receiving opening such that it is flush with the surface. Alternatively, one surface of the antenna module can be recessed 6 mm, in particular 3 mm or 1 mm, from the surface of the base body into the interior of the receiving opening. This reduces the risk of damage to the antenna module, even if the platform is driven over by a vehicle.

[0060] According to another exemplary embodiment, the antenna module is designed as a flat antenna, wherein the antenna module is particularly cylindrical with a diameter of 90 mm to 50 mm, and in particular 70 mm. Accordingly, the antenna module can be cylindrical and integrated into a correspondingly round receiving bore in the platform.

[0061] According to another exemplary embodiment, the antenna module has a radiation pattern with at least one main lobe that lies essentially within a horizontal plane (from the ground plane) when the platform is resting on the ground. Typically, antennas are designed with a vertical radiation direction. Since the transmitting and receiving devices on platforms are also arranged close to the ground, the antenna module according to this exemplary embodiment is configured such that the main lobe of the radiation source is essentially horizontal. Thus, robust signal transmission can be provided with a lower radiated power.

[0062] According to another exemplary embodiment, the receiving opening is a through-hole between the surface and the base of the main body. This allows for easier disassembly of the antenna module, for example by inserting a hand or tool into the receiving opening from one side and pushing the antenna module out on the opposite side.

[0063] According to another exemplary embodiment, the antenna module comprises a housing and antenna electronics mounted within the housing. A spacer volume exists between the top surface of the housing, which is flush with the surface of the base body or projects from the surface towards the surroundings, and the antenna electronics. The top surface of the housing is designed to be elastically deformable, allowing for elastic deformation within the spacer volume. This spacer volume thus acts as a buffer and a damping element, damping the weight of a vehicle driving over the antenna module and preventing damage to the module.

[0064] According to another exemplary embodiment, elastic clamping elements are provided in the receiving opening between the base body and the antenna module such that a releasable clamping attachment of the antenna module in the receiving opening is possible. The elastic clamping elements can, for example, be rubber-like elements. The elastic clamping elements are arranged, for example, in a gap between the base body and the antenna module. Depending on the elasticity and size of the clamping element, the desired clamping force can be adjusted. The clamping force is configured, in particular, such that the antenna module is not released from the receiving opening due to its own weight or due to defined impact movements in the vertical direction or along the z-axis. At the same time, a vertical push or pull, applied manually or with a tool, is sufficient to release the antenna module.This allows for easy and quick assembly and disassembly of the antenna module.

[0065] According to another exemplary embodiment, the antenna module has a receptacle in its circumferential surface for attaching the clamping element. The clamping element can, in particular, be cylindrical or form a cylindrical column. Correspondingly, the receptacle can be cylindrical with a circular base. Alternatively, the clamping element can have a rectangular, in particular quadrilateral, base, and the receptacle can be designed accordingly.

[0066] According to another exemplary embodiment, the antenna module has a signal coupling point on the surface of the base body such that an antenna signal can be transmitted contactlessly from this signal coupling point to another signal coupling point on the dummy. The dummy can, for example, have an antenna spaced away from the platform so that the antenna signals can be radiated from a more suitable location.

[0067] According to the invention, the roller element has a roller axle, wherein the roller element is rotatable about the roller axle. The base body has a roller receptacle on its bottom surface for receiving the roller axle, wherein an elastic clamping element is arranged in the roller receptacle such that a clamping connection between the roller receptacle and the roller element is provided.

[0068] The clamping element can be cylindrical or form a cylindrical column. Correspondingly, the receptacle can be cylindrical with a circular base. Alternatively, the clamping element can have a rectangular, particularly quadrilateral, base, and the receptacle can be designed accordingly.

[0069] Similar to the clamping element for the antenna module described above, the clamping element for the roller element can be arranged in a gap between the mount and the roller element.

[0070] According to another exemplary embodiment, the elasticity and / or the size of the clamping elements is configured such that the roller element can only be released from the roller mount when a decoupling force is higher than the weight force of the roller element.

[0071] Depending on the elasticity and size of the clamping element, the desired clamping force can be adjusted. The clamping force is configured in such a way that the roller element is not dislodged from the roller holder due to its own weight or due to defined impact movements in the vertical direction or along the z-axis. At the same time, only minimal force is required to release the roller element from the roller holder, allowing for easy assembly and disassembly, for example, in a single plug-in operation.

[0072] The roller receptacle is designed, for example, as a receiving fork, so that the roller axis of the roller element is clamped into the receptacle by the clamping element. According to another exemplary embodiment, the roller element is then designed such that it rotates around the clamped roller axis.

[0073] According to another exemplary embodiment, the roller receptacle is rotatably arranged on the base body about an axis of rotation, with the roller element being attached to the roller receptacle eccentrically and at a distance from the axis of rotation. Thus, when the platform's direction of travel changes, the roller element can roll quickly and without resistance in the new direction of travel.

[0074] According to a further exemplary embodiment, the platform further comprises at least one electronic module arranged in the base body, wherein the electronic module includes an electronic component, in particular a circuit board. The electronic module has a planar viscoelastic damping element, in particular a cylindrical damping element, to which the electronic component is attached. The electronic module has a support structure to which the viscoelastic damping element is attached, so that vibrations acting from the base body on the electronic component can be dampened by means of the viscoelastic damping element.

[0075] The damping element, for example, has a cylindrical shape, on whose base or surface the circuit board or electronic component can be placed and attached. The base of the damping element is parallel to the floor surface or horizontal plane when the platform rests on the floor. In the z-direction, or vertical direction, the damping element can deform elastically more easily than in the plane of the floor, i.e., in the y-direction or x-direction, because the damping element has a larger area moment of inertia within the plane of the floor.

[0076] According to a further exemplary embodiment, the viscoelastic damping element extends within a damping plane whose normal is parallel to the normal of a floor plane in such a way that the damping element is stiffer against a deformation perpendicular to the normal of the floor plane than against a deformation parallel to the normal of the floor plane, so that vertical forces extending parallel to the normal of the floor plane can be damped more effectively by means of the viscoelastic damping element than horizontal forces extending perpendicular to the normal of the floor plane.

[0077] Accordingly, sensors, for example, can be used as electronic components to accurately measure the impact movements of the platforms, as the damping element causes minimal damping. Impact movements in the vertical direction, which are disruptive to measurement, are dampened by the damping element, thus allowing the electronic component to be mounted more gently.

[0078] According to another exemplary embodiment, the viscoelastic damping element is attached to the support structure by means of a fastening screw, wherein the fastening screw in particular has an insertion direction parallel to the normal of the floor plane. The damping element is, for example, cylindrical and has a through-opening along its central axis through which the fastening screw can be inserted.

[0079] According to another exemplary embodiment, the surface of the platform is at least partially reflective, particularly for thermal radiation. The surface can, for example, consist of a polished metal, especially steel or aluminum, or optionally be a matte or slightly mirror-like material. The surface can, for example, be sandblasted or acid-etched to achieve a reflective surface with higher average roughness values ​​and a matte reflective surface.

[0080] The reflective surface can have a mean roughness value Ra [µm (micrometers)] between Ra ≥ 0.1 µm and Ra ≥ 12.5 µm. The reflective surface can have a mean roughness value Ra of Ra ≥ 0.1 µm, particularly Ra ≥ 0.2 µm, Ra ≥ 1.6 µm, or Ra ≥ 12.5 µm. Especially at higher mean roughness values ​​Ra (e.g., between Ra = 1.6 µm and Ra = 12.5 µm or more), light is still reflected, but as diffuse light. This means that, for example, solar heat radiation is largely reflected, while other radiation, such as radar waves, is at least partially absorbed. The surface is slightly matte in the reflective areas, so that photosensors of the vehicle under test, in particular, perceive the matte reflective surface as, for example, an asphalt-like surface, thus preventing measurement errors.

[0081] This allows heat radiation, which is generated especially by the sun, to be reflected, so that the interior of the platform is not heated up and thus improved heat management is possible.

[0082] According to an exemplary embodiment, the reflective surface has a reflectance of more than 80%, in particular more than 90% or more than 95%. Reflectance means that more than 80% of radiation arriving at the surface with 100% reflectance, in particular more than 90% or more than 95%, is reflected back and not absorbed into the platform.

[0083] According to an exemplary embodiment, the platform further comprises a reflective element (e.g., a reflective plate) for reflecting radiation, in particular thermal radiation. The reflective element extends, at least in certain areas, along the surface of the base body at an insulating gap, which is preferably filled with air or an insulating material for thermal insulation. The shielding element itself can be made of a material with low thermal conductivity. The insulating gap is, for example, 1 mm to 5 mm.

[0084] According to an exemplary embodiment, the platform further comprises a reflective element which is designed as a film and is, for example, glued to the surface of the platform by means of an adhesive bond.

[0085] Accordingly, the film can be replaced if it becomes worn or defective. The film is reflective, designed to reflect radiation, especially heat radiation, according to the reflective element described above (e.g., as a metal foil or mirror foil).

[0086] Furthermore, a platform can be provided with a combination of a reflective surface and radiation-absorbing outer edge regions. In general, an exemplary embodiment of the platform can be designed such that all surfaces parallel to the ground plane are reflective, particularly with respect to thermal radiation, while all surfaces angled to the ground plane, such as the surface of the transition area and the outer edge regions, have a radiation-absorbing surface. The horizontal reflective surfaces hardly affect the measurement accuracy, since the waves are reflected perpendicularly and vertically and are therefore not directed back to the sensor unit. At the same time, thermal radiation entering from a vertical direction can be reflected, thus improving thermal management without introducing measurement inaccuracies.A platform with the above-described combination of reflective and absorbing surfaces thus exhibits a high efficiency in terms of measurement accuracy and thermal management.

[0087] The platform further comprises at least one first functional module and one second electronic functional module, which are arranged in the base body. The platform also includes a connecting board located between the first and second electronic functional modules and the surface of the base body, with each of the first and second electronic functional modules having at least one connector on a side facing the surface of the base body. The connecting board extends along the surface between the first and second electronic functional modules and has corresponding contact points for receiving the connectors of the first and second electronic functional modules, allowing the functional modules to be plugged vertically onto the connecting board.

[0088] A functional module or functional elements can, for example, describe active electronic components that receive or supply signals and electrical power, such as drive units, battery modules, or communication units. The functional modules can be mounted in their desired position, for example, through a receiving opening in the surface or base of the platform. The functional modules are coupled to each other, in particular, for signal exchange and the exchange of electrical power. In the present exemplary embodiment, this is accomplished by means of the connecting board.

[0089] The interconnect board is made primarily from a substrate, such as FR4. Conductive traces are formed on the substrate, for example, printed on it, creating a predefined path between two functional modules. The interconnect board contains no active switching elements, but consists solely of conductive traces.

[0090] The interconnect board has contact points that are accessible through the platform's mounting opening, particularly in a vertical insertion direction. The functional modules have corresponding connectors that are also accessible vertically. In other words, the interconnect board has two opposing main surfaces on which the contact points are located. The conductive traces of the interconnect board are designed such that the contact points are connected for the exchange of electrical power and signals. When the functional modules are plugged into the interconnect board, they are thus electronically connected via the board. No further free wire connections between the functional modules are necessary.For example, the power board can be connected to the connection board at one point and a communication module or the drive unit at another point on the platform, so that the functional modules are interconnected without a wire connection thanks to the conductive traces on the connection board. This allows the functional modules to be easily plugged into the connection board at a predetermined location in a vertical orientation and replaced accordingly. Wear and tear on the wire connections can thus be largely avoided. The connection board extends, for example, at floor level over more than 50% of the installation area, or even over the entire installation area.

[0091] The following section explains several aspects that, depending on or independent of the platform primarily described, enable a thin platform design. All aspects described below can be combined with the exemplary embodiments described above.

[0092] According to another aspect, a platform for a dummy to simulate traffic situations is described. The platform has a base body, which has a floor surface and a surface extending from the floor surface, and at least one roller element, which is arranged on the floor surface, wherein the roller element is designed such that the base body can be moved along a floor by means of the roller element. The platform further has a drive train, which includes a drive unit, wherein the roller element is coupled to the drive unit to transmit a drive torque.The drive train and the roller element are coupled one behind the other along an axial direction in such a way that the drive train together with the roller element is at least partially located in a receiving opening in the base surface of the base body, wherein the drive train with the roller element is arranged to pivot into and out of the receiving opening.

[0093] According to another aspect, a platform for a dummy to simulate traffic situations is described. The platform comprises a base body, which has a floor surface and a surface extending from the floor surface, and at least one roller element, which is arranged on the floor surface, wherein the roller element is designed such that the base body can be moved along a floor by means of the roller element. The platform further comprises a power board, which is arranged in the base body, particularly in the installation area, and at least one battery cell, which is coupled to the power board in such a way that the power board enables charging of and current draw from the battery cell.

[0094] According to another aspect, a platform for a dummy to simulate traffic situations is described. The platform comprises a base body, which has a base and a surface extending from the base, and at least one roller element arranged on the base, wherein the roller element is designed such that the base body can be moved along a surface by means of the roller element. The platform further comprises at least one antenna module, in particular a WLAN or a GPS antenna module, wherein the base body has a receiving opening on its surface in which the antenna module is arranged.

[0095] According to the invention, a platform for a dummy for simulating traffic situations is described. The platform comprises a base body, which has a base surface and a surface opposite the base surface, and at least one roller element, which is arranged on the base surface, wherein the roller element is designed such that the base body can be moved along a surface by means of the roller element. The roller element has a roller axle, wherein the roller element is rotatable about the roller axle. The base body has a roller receptacle on its base surface for receiving the roller axle, wherein an elastic clamping element is arranged in the roller receptacle such that a clamping connection between the roller receptacle and the roller element can be provided.

[0096] According to another aspect, a platform for a dummy to simulate traffic situations is described. The platform comprises a base body, which has a base and a surface opposite the base, and at least one roller element arranged on the base, wherein the roller element is designed such that the base body can be moved along a surface by means of the roller element. The platform further comprises at least one electronic module arranged in the base body, wherein the electronic module comprises an electronic component, in particular a circuit board. The electronic module has a planar viscoelastic damping element, in particular a cylindrical damping element, to which the electronic component is attached.The electronic module has a support structure to which the viscoelastic damping element is attached, so that vibrations acting from the base body onto the electronic component can be damped by means of the viscoelastic damping element.

[0097] According to another aspect, a platform for a dummy to simulate traffic situations is described. The platform has a base body, which has a floor surface and a surface extending from the floor surface, and at least one roller element arranged on the floor surface, wherein the roller element is designed such that the base body can be moved along a floor by means of the roller element. The surface of the platform is reflective, at least in some areas, particularly with regard to thermal radiation.

[0098] According to another aspect, a platform for a dummy to simulate traffic situations is described. The platform comprises a base body, which has a floor surface and a surface opposite the floor surface, and at least one roller element arranged on the floor surface, wherein the roller element is designed such that the base body can be moved along a floor by means of the roller element. The platform further comprises at least a first functional module and a second electronic functional module, which are arranged in the base body. The platform also comprises a connecting board arranged between the first and second electronic functional modules and the surface of the base body, wherein the first and second electronic functional modules each have at least one contact connector on a side facing the surface of the base body.The connecting board extends along the surface between the first and second electronic function modules and has corresponding contact points for receiving the contact plugs of the first and second electronic function modules, so that the function modules can be plugged vertically onto the connecting board.

[0099] It should be noted that the embodiments described here represent only a limited selection of possible embodiments of the invention. It is possible to combine the features of individual embodiments in a suitable manner, so that a multitude of different embodiments are considered to be obviously disclosed to the person skilled in the art with regard to the embodiments explicitly described here. In particular, some embodiments of the invention are described by apparatus claims and other embodiments by method claims. However, it will become immediately clear to the person skilled in the art upon reading this application that, unless explicitly stated otherwise, in addition to a combination of features belonging to one type of subject matter, any combination of features belonging to different types of subject matter is also possible. Brief description of the drawings

[0100] For further explanation and better understanding of the present invention, exemplary embodiments are described in more detail below with reference to the accompanying drawings. Fig. 1 shows a schematic representation of a side view of a movable platform according to an exemplary embodiment. Fig. 2 shows a schematic representation of a top view of the platform. Fig. 1 . Fig. 3 shows a schematic representation of a swiveling drive train according to an exemplary embodiment. Fig. 4 shows a schematic representation of a pivoting drive train with pivot springs according to an exemplary embodiment. Fig. 5 Figure 1 shows a schematic representation of a coupling of a roller element to the drive train according to an exemplary embodiment. Fig. 6Figure 1 shows a schematic representation of the fastening of a roller element to a roller fastening unit by means of clamping elements according to an exemplary embodiment. Fig. 7 shows a schematic representation of a power board with battery cells according to an exemplary embodiment. Fig. 8 shows a schematic representation of the mounting of antenna modules in the platform according to an exemplary embodiment. Fig. 9 shows a schematic representation of a radiation characteristic of an antenna module according to an exemplary embodiment. Fig. 10 Figure 1 shows a schematic representation of an antenna module according to an exemplary embodiment of the present invention. Fig. 11 shows a schematic representation of a connecting board which is installed in the base body, according to an exemplary embodiment. Fig. 12shows a schematic representation of an electronic module with a damping mechanism according to an exemplary embodiment. Fig. 13 shows a schematic representation of the attachment of a roller element to the base body of the circuit board according to an exemplary embodiment. Detailed description of exemplary embodiments

[0101] Identical or similar components in different figures are identified by the same reference numbers. The representations in the figures are schematic.

[0102] Fig. 1 Figure 1 shows a schematic representation of a side view of a movable platform 100 according to an exemplary embodiment. Fig. 2 shows a schematic representation of a top view of platform 100. Fig. 1The platform 100 comprises a base body 101, which has a base surface 102 and a surface 103 opposite the base surface 102, and at least one roller element 104, which is arranged on the base surface 102 103, wherein the roller element 104 104 is configured such that the base body 101 can be moved along a base 130 by means of the roller element 104, wherein the base body 101 has a mounting area 106 and an installation area 105. A mounting device 201 for attaching the dummy is provided on the mounting surface of the mounting area 106, wherein functional elements can be installed in the installation area 105. The base body 101 is designed to be so thin that a collision vehicle can drive over the base body 101 without damage.

[0103] The base body 101 has a base surface 102 and an opposing surface 103. The base body 101 rests on a base 130 with its base surface 102. In this case, the base surface 102 is parallel to the base 130, i.e., to the floor plane. At least one roller element 104 is rotatably arranged in the base surface 102, projecting at least partially from the base body 101 and thus providing a gap between the base body 101 and the base 130. A fastening device 201 is formed on the surface 103. The fastening device 201 is configured to fix the dummy. Furthermore, the fastening device 201 can be controllable to selectively release the test object, for example, shortly before an impact, so that the fastening between the base body 101 and the test object is released.The floor plane is defined by an x-axis (for example, in the direction of travel of platform 100) and a y-axis. The x-axis and y-axis thus lie in the floor plane. The z-axis (vertical) runs perpendicular to the floor plane and therefore parallel to its normal.

[0104] Platform 100 has, in particular, an installation area 105 in which all functional elements or modules, such as the drive units or communication units, of platform 100 are arranged. The dummy is attached to the mounting surface in the mounting area 106. Along the floor plane, platform 100 is divided into the mounting area 106 and the installation area 105.

[0105] The base body 101 is designed in such a stepped manner that an installation thickness 107 between the base surface 102 and the surface 103 in the installation area 105 is greater than a fastening thickness 108 between the base surface 102 and the surface 103 in the fastening area 106.

[0106] Platform 100 thus has two different thickness zones. The thicker installation zone 105 houses the functional elements, which generally require a greater thickness. The mounting zone 106, on which the dummy is attached, contains, for example, only non-powered roller elements 104, so no further thicker functional elements need to be installed. Mounting zone 106 can therefore be made thinner than installation zone 105.

[0107] A transition area 109 is formed between the installation area 105 and the mounting area 106, wherein the surface 103 in the transition area 109 has an angle α to the surface 103 in the installation area 105 (and / or the mounting area 106) of between 5° and 45°, in particular between 5° and 15°. The angle α is measured in particular between the plane (or its normal) in which the transition area 109 lies and the ground plane (or its normal). In particular, if the transition area 109 is designed with an inclined profile, direct back-emission of sensor beams, such as radar waves, can be avoided.

[0108] The base body 101 has outer edge regions 110 that surround the mounting area 106 and / or the installation area 105, wherein the outer edge regions 110 are wedge-shaped and wherein at least one wedge-shaped outer edge region 110 has an opening angle β of approximately less than 25°. The wedge-shaped outer edge regions 110 thus form a ramp over which the collision vehicle can gently access the deck surface 103 of the platform 100 and traverse the entire platform 100. The opening angle β is measured, in particular, between the ground plane (or its normal plane) and the plane (or its normal plane) in which the surface 103 of the wedge-shaped outer edge regions 110 runs. Likewise, the wedge-shaped outer edge regions 110 reflect sensor radiation with a vertical component, thus reducing the risk of measurement errors.The outer edge areas 110 have a radiation-absorbing, in particular radar wave-absorbing, surface 103, in particular with the color RAL 7005 or RAL 7035.

[0109] Surface 103 features a dome-shaped cover element in the area of ​​the roller element 104. This allows roller elements 104 with a larger roller radius to be used despite a narrow installation area 105. The necessary installation space is created by the dome-shaped cover elements. Furthermore, due to the dome shape, the sensor radiation is not reflected directly back, but with a vertical component, thus reducing measurement errors.

[0110] The surface 103 of platform 100 is designed to be reflective, at least in some areas, particularly with regard to thermal radiation. Surface 103 can, for example, be made of polished metal or, if appropriate, of a textured material. This allows thermal radiation, especially that generated by the sun, to be reflected, preventing the interior of platform 100 from heating up and thus enabling improved thermal management. Platform 100 can be designed such that all surfaces parallel to the ground plane are reflective, particularly with regard to thermal radiation, while all surfaces angled towards the ground plane, such as surface 103 of the transition area 109 and the outer edge areas 110, have a radiation-absorbing surface 103.

[0111] According to a further exemplary embodiment, the base body 101 has at least two electrical contact surfaces 112 that are freely accessible from outside the platform 100. The contact surfaces 112 are connected to a power board 700 (see Fig. 7 ) electrically connected, wherein the two electrical contact surfaces 112 are designed in particular such that sliding contacts with contact points of a stationary charging station can be provided. For example, the platform 100 can move into a charging station and, at a certain charging position, establish an electrical contact between the sliding contact of the platform 100 and the sliding contact in the charging station.

[0112] The platform 100 further comprises at least one antenna module 113, in particular a WLAN or a GPS antenna module 113, wherein the base body 101 has a receiving opening 114 on the surface 103 in which the antenna module 113 is arranged.

[0113] Fig. 3 Figure 1 shows a schematic representation of a pivotable drive train 300 according to an exemplary embodiment. The platform 100 further comprises a drive train 300 which includes a drive unit 301, wherein the roller element 104 is coupled to the drive unit 301 for transmitting a drive torque. The drive train 300 and the roller element 104 are coupled one behind the other along an axial direction a such that the drive train 300 together with the roller element 104 is at least partially located in a receiving opening 401 in the base surface 102 of the base body 101, wherein the drive train 300 with the roller element 104 is inserted into the receiving opening 401 (see Figure 1). Fig. 4 ) is arranged to swivel in and out.

[0114] The drive train 300 can, for example, have a housing or a supporting structure in which all functional mechanical components, such as the drive unit 301 or bearings for the shafts, are arranged. According to the invention, the drive train 300 is pivotably arranged on the base body 101 so that, under load (in particular, the weight force from a vehicle running over it in the vertical direction), the drive train 300, together with the roller element 104, is pivoted towards the platform 100 in order to dampen the load and, if necessary, to safely store the roller element 104 together with the drive train 300 in a receiving area, for example in an installation box, so that no further weight force of the vehicle being struck is transferred to the drive train 300 and the roller element 104.This is particularly possible if, in a pivoted state of the drive train 300 and the roller element 104, the entire weight force of the platform 100 and the vehicle passing over it is transferred via the base body 101 into the ground 130 and no longer via the roller element 104. Thus, a thin platform 100, which is extremely robust against heavy vehicles (for example, heavy-duty trucks), can be provided.

[0115] The drive unit 301 has a drive shaft 303 and the roller element 104 has a rotary shaft 302, wherein the drive unit 301 and the roller element 104 are arranged such that the drive shaft 303 and the rotary shaft 302 run parallel to the axial direction a. The drive unit 301 and the roller element 104 are arranged such that the drive shaft 303 and the rotary shaft 302 run coaxially.

[0116] The drive train 300 includes a gear unit 304, in particular a planetary gear unit, which is arranged between the drive shaft 303 and the rotating shaft 302 such that a drive torque from the drive shaft 303 can be transmitted to the rotating shaft 302. Thus, for example, less powerful drive units 301, 305 (electric motors) can be used to still generate sufficient drive torque for the roller element 104.

[0117] The drive train 300 includes a further drive unit 305 (for example, another electric motor), wherein the further drive unit 305 is coupled to the gear unit 304 such that a further drive torque can be transmitted from the drive shaft 303 to the rotating shaft 302. In particular, the drive unit 301 and the further drive unit 305 can be arranged in series and thus generate the drive torque on the drive shaft 303 along a common axial direction a. Alternatively, the drive unit 301 and the further drive unit 305 can be connected in parallel and thus transmit the corresponding drive torques to the drive shaft 303 side by side, for example via a planetary gear unit as described below.

[0118] The gear unit 304 has a planetary gear set with at least a first and a second planet gear 312, wherein the drive unit 301 is coupled to the first planet gear 312 and the further drive unit 305 is coupled to the second planet gear 312 (see dashed line in Fig. 3 The rotating shaft 302, for example, is a rotating ring gear on the inside of which the planet gears 312 run.

[0119] The drive train 300 has, particularly at one axial end, a pivot pin 306 which forms a swivel axis 307, wherein the pivot pin 306 is coupled to the base body 101. The swivel axis 307 extends transversely to the axial direction a of the drive train 300. In particular, the pivot pin 306 is coupled to the base body 101 by means of a sliding bearing. Alternatively, ball bearings or roller bearings can also be used.

[0120] The drive train 300 has an electrical coupling point 309 at its axial end for connecting an electrical plug 310. In particular, the coupling point 309 is formed in the area of ​​the pivot axis 307, so that when the drive train 300 pivots, hardly any relative movement of the coupling point 309 and thus of the electrical plug is generated.

[0121] A pivoting spring 311 is arranged between the drive train 300 and the base body 101 such that a pivoting movement of the drive train 300 relative to the base body 101 can be damped in a defined manner.

[0122] Fig. 4 Figure 1 shows a schematic representation of a pivoting drive train 300 with pivot springs 311 according to an exemplary embodiment.

[0123] The pivot springs 311 have a degressive spring characteristic, which reduces the spring force as the compression of the drive train 300 into the receiving opening 401 increases. The pivot spring 311, in particular as a helical spring, has a spring force F along a spring force direction, wherein the pivot spring 311 is arranged between the base body 101 and the drive train 300 such that the spring force has an angle γ between 20° and 70°, in particular between 40° and 50°.

[0124] The pivot direction is tangential around the pivot axis 307. Essentially, the pivot direction has a vertical component, in particular vertically. Furthermore, the pivot direction is formed within a damping plane defined by the yz axes and having a normal nS parallel to the x-axis. The weight of the platform 100 and the vehicle crossing it acts vertically, parallel to the normal of the ground plane. The pivot spring 311 is arranged at an angle to the normal of the ground plane such that the spring force of the pivot spring 311, and consequently the extension direction of the pivot spring 311, is not parallel to the pivot direction or the normal nS, nor parallel to the weight force, but also at the specified angle γ.This results in the pivot spring 311 being compressed when the drive train 300 compresses in the pivoting direction, and the pivot spring 311 buckling under the weight load. This buckling reduces the spring force, and consequently, a lower spring force is set at greater spring travel due to the buckling. This creates the degressive spring characteristic.

[0125] Fig. 5 Figure 1 shows a schematic representation of a coupling of a roller element 104 to the drive train 300 according to an exemplary embodiment.

[0126] The drive train 300 has a roller mounting unit 501 to which the roller element 104 can be interchangeably attached, the roller mounting unit 501 being rotatable about the axial direction a. The roller mounting unit 501 is, for example, rotationally fixed to the drive shaft 303, so that when the drive shaft 303 rotates, the roller mounting unit 501 also rotates. The roller mounting unit 501 has, for example, mounting holes for a fastening element to fix the roller element 104 to the roller mounting unit 501 in a rotationally fixed manner.

[0127] The roller element 104 is detachably fastened to the roller mounting unit 501 by means of a fastening screw 313, in particular by means of only one, wherein the screw-in direction of the fastening screw 313 is in particular parallel to the axial direction a (of the rotary shaft 302 and the drive shaft 303). In particular, the drive shaft 303 and the rotary table can be coaxial and have a common axial direction a. The roller mounting unit 501 has in particular at its center or midpoint a receiving bore extending in the axial direction a. The roller element 104 has a through-opening at its midpoint through which the fastening screw 313 is inserted and fixed in the receiving bore of the roller mounting unit 501.

[0128] The roller element 104 has a first contact surface 314 and the roller mounting unit 501 has a second contact surface 315, wherein the first contact surface 314 and the second contact surface 315 have corresponding toothed elements to provide a positive-locking connection. By means of this positive-locking connection, the roller element 104 is fixed to the roller mounting unit 501 in a rotationally fixed manner. The fastening screw thus presses the roller element 104 axially against the roller mounting unit 501, and the toothed elements prevent the roller element 104 from rotating relative to the roller mounting unit 501. The corresponding toothed elements are designed as hemispherical projections 316 and corresponding hemispherical recesses 317.When the raised sections 316 and recesses 317 interlock, a positive connection is formed. Due to the hemispherical design, a centering effect is also created. This allows the roller element 104 to be easily and quickly detached and attached.

[0129] In the roller mounting unit 501, an elastic clamping element 502 is arranged to fasten the rotary shaft 302 in such a way that a clamping connection is made between the roller mounting unit 501 and the roller element 104.

[0130] Fig. 6Figure 1 shows a schematic representation of the fastening of a roller element 104 to a roller fastening unit 501 by means of clamping elements according to an exemplary embodiment. In particular, a top view of the end face of the rotary shaft 302 facing the drive train 300 is shown. Four or more hemispherical projections 316 or recesses 317 are arranged circumferentially on the rotary shaft 302. Receptacles 601, e.g., receiving grooves, are formed on the cylindrical surfaces of the rotary shaft 302. The clamping element 502 can, in particular, be cylindrical or form a cylindrical column. Correspondingly, the receptacle 601 can form a cylindrical shape with a circular base. Alternatively, the clamping element 502 can have a rectangular, in particular quadrilateral, base, and the receptacle 601 can be designed accordingly.The rotary shaft 302 is pressed into the roller mounting unit 501 so that the elastic clamping elements 502 deform and generate a clamping force that secures the rotary shaft 302 in the roller mounting unit 501.

[0131] Fig. 7 Figure 1 shows a schematic representation of a power board 700 with battery cells 701, 702 according to an exemplary embodiment. The platform 100 further comprises a power board 700, which is arranged in the base body 101, in particular in the installation area 105. The platform 100 also includes battery cells 701, 702, which are coupled to the power board 700 in such a way that the power board 700 enables charging of and current draw from the battery cells 701, 702. The battery cells 701, 702 are connected in parallel. The battery cells 701, 702 are designed as flat batteries with a rectangular perimeter and a small thickness.

[0132] Battery cells 701 and 702 each have a first terminal, formed by a first contact pin 703, and a second terminal, formed by a second contact pin 704. The first contact pin 703 and the second contact pin 704 are connected to corresponding sockets 705 on the power board 700. The first contact pin 703 and the second contact pin 704 are of different lengths.

[0133] Fig. 8 Figure 1 shows a schematic representation of the mounting of antenna modules in platform 100 according to an exemplary embodiment. The antenna module 113 is arranged in the receiving opening 114 such that it is flush with the surface 103. This reduces the risk of damage to the antenna module 113, even if a vehicle drives over platform 100.

[0134] The antenna module 113 is designed as a flat antenna, in particular being cylindrical and integrated into a correspondingly round receiving bore 114 in the platform 100. The receiving bore 114 forms a through-hole between the surface 103 and the base surface 102 of the base body 101. This allows for easier disassembly of the antenna module 113, for example, by inserting a hand or tool into the receiving bore 114 from one side and pushing the antenna module 113 out on the opposite side.

[0135] In the receiving opening 114, elastic clamping elements 502 are provided between the base body 101 and the antenna module 113, such that a releasable clamping connection of the antenna module 113 in the receiving opening 114 is possible. The elastic clamping elements 502 can, for example, be rubber-like elements. The elastic clamping elements 502 are arranged, for example, in a gap between the base body 101 and the antenna module 113. Depending on the elasticity and size of the clamping element 502, the desired clamping force can be adjusted. The clamping force is configured, in particular, such that the antenna module 113 is not released from the receiving opening 114 due to its own weight or due to defined impact movements in the vertical direction or along the z-axis.

[0136] Fig. 9Figure 1 shows a schematic representation of the radiation pattern 900 of an antenna module 113 according to an exemplary embodiment. The antenna module 113 has a receptacle 901 (receptacle groove) in its circumferential surface for attaching the clamping element 502. The clamping element 502 can, in particular, be cylindrical or form a cylindrical column. Correspondingly, the receptacle 901 can have a cylindrical shape with a circular base. Alternatively, the clamping element 502 can have a rectangular, in particular quadrilateral, base, and the receptacle 901 can be designed accordingly.

[0137] The antenna module 113 has a radiation pattern 900 with at least one main lobe and is arranged such that the main lobe lies essentially within a horizontal plane (from the ground plane) when the platform 100 rests on the ground 130. Typically, the radiation direction of antennas is designed in a vertical direction.

[0138] Fig. 10Figure 1 shows a schematic representation of an antenna module 113 according to an exemplary embodiment of the present invention. The antenna module 113 comprises a housing 1001 and antenna electronics 1002, which are mounted in the housing 1001. A spacer volume 1003 exists between a top surface of the housing 1001, which is flush with the surface 103 of the base body 101 or projects from the surface 103 towards the surroundings, and the antenna electronics 1002. The top surface of the housing 1001 is designed to be elastically deformable such that elastic deformation can be provided into the spacer volume 1003. Thus, the spacer volume 1003 can act as a buffer and a damping element, so that the weight force of a collision vehicle driving over the antenna module 113 is dampened, thereby preventing damage to the antenna module 113.

[0139] Fig. 11Figure 1 shows a schematic representation of a connecting board 1103, which is installed in the base body 101, according to an exemplary embodiment.

[0140] The platform 100 further comprises at least one first functional module 1101 and one second electronic functional module 1102, which are arranged in the base body 101. The platform 100 also comprises a connecting board 1103, which is arranged between the first and second electronic functional modules 1101, 1102 and the surface 103 of the base body 101, wherein the first and second electronic functional modules 1101, 1102 each have at least one contact connector 1104 on a side facing the surface 103 of the base body 101. The connecting board 1103 extends along the surface 103 between the first and second electronic function modules 1101, 1102 and has corresponding contact points 1105 for receiving the contact plugs 1104 of the first and second electronic function modules 1101, 1102, so that the function modules 1101, 1102 can be plugged vertically onto the connecting board 1103.

[0141] A functional module 1101, 1102, or functional elements, can, for example, describe active electronic components that receive or supply signals and electrical power, such as drive units 301, battery modules, or communication units. The functional modules 1101, 1102 can be mounted in their desired position, for example, through a receiving opening 114 in the surface 103 or the base 102 of the platform 100. The functional modules 1101, 1102 are coupled to each other, in particular, for signal exchange and the exchange of electrical power. In the present exemplary embodiment, this is accomplished by means of the connecting board 1103.

[0142] The connecting board 1103 has contact points 1105 that are accessible through the receiving opening of the platform 100, particularly in a vertical insertion direction. The function modules 1101 and 1102 have corresponding contact plugs 1104, which are also accessible in a vertical direction. In other words, the connecting board 1103 has two opposing main surfaces on which the contact points 1105 are formed. The conductor tracks of the connecting board 1103 are designed such that the contact points 1105 are connected for the exchange of electrical power and electrical signals. When the function modules 1101 and 1102 are plugged into the connecting board 1103, they are thus electronically connected via the connecting board 1103. No further free connecting wires are necessary between the function modules 1101 and 1102.For example, the power board 700 can be connected to the connection board 1103 at one location and a communication module or the drive unit 301 at another location on the platform 100. This means that the functional modules 1101 and 1102 are interconnected without the need for a wire connection, thanks to the conductive traces on the connection board 1103. Therefore, the functional modules 1101 and 1102 can be easily plugged into the connection board 1103 at a predetermined location in a vertical plug-in direction and can be easily replaced as needed.

[0143] Fig. 12 Figure 1 shows a schematic representation of an electronic module 1201 with a damping mechanism according to an exemplary embodiment.

[0144] The platform 100 further comprises at least one electronic module 1201, which is arranged in the base body 101, wherein the electronic module 1201 includes an electronic component 1202, in particular a circuit board. The electronic module 1201 has a planar viscoelastic damping element 1203, in particular a cylindrical damping element 1203, to which the electronic component 1202 is attached. The electronic module 1201 has a support structure 1205 to which the viscoelastic damping element 1203 is attached by means of a fastening element 1204, such as a fastening screw, so that vibrations acting from the base body 101 on the electronic component 1202 can be damped by means of the viscoelastic damping element.

[0145] The damping element 1203, for example, has a cylindrical shape, on whose base or surface the circuit board or electronic component 1202 can be placed and fastened. The base of the damping element 1203 is parallel to the floor surface 102 or the horizontal plane when the platform 100 rests on the floor 130. In the z-direction, or vertical direction, the damping element 1203 can deform elastically more easily than in the plane of the floor, i.e., in the y-direction or x-direction, because the damping element 1203 has a larger area moment of inertia within the plane of the floor.

[0146] The viscoelastic damping element 1203 extends within a damping plane whose normal nd is parallel to the normal of a floor plane, such that the damping element 1203 is stiffer against a deformation perpendicular to the normal of the floor plane than against a deformation parallel to the normal of the floor plane, so that vertical forces extending parallel to the normal of the floor plane can be damped more strongly by means of the viscoelastic damping element 1203 than horizontal forces extending perpendicular to the normal of the floor plane.

[0147] Accordingly, sensors, for example, can be used as electronic components to accurately measure the shock movements of platform 100, since the damping element 1203 causes hardly any damping. Shock movements in the vertical direction, which are disruptive for measurement purposes, are dampened by the damping element 1203, thus allowing the electronic component 1202 to be mounted more gently.

[0148] To increase lateral movement or stiffening in the ground plane, flat connecting plates 1207 are provided, which run horizontally, i.e., in the xy-plane, between fastening elements 1204, such as fastening screws. The damping elements 1203 can have vertical projections 1206 in the Z-direction, which partially surround the connecting plates 1207. The projections 1206 thus form a seat for the connecting plates 1207.

[0149] The viscoelastic damping element 1203 is attached to the support structure 1205 by means of the fastening element 1204 or the fastening screw, wherein the fastening screw 1204 has an insertion direction parallel to the normal of the floor plane or the normal nD of the damping plane. The damping element 1203 is, for example, cylindrical and has a through-opening along its central axis through which the fastening element 1204 can be inserted.

[0150] Fig. 13 Figure 1 shows a schematic representation of the attachment of a roller element 104 to the base body 101 of the circuit board according to an exemplary embodiment.

[0151] The roller element 104 has a roller axle 1301, and the roller element 104 is rotatable about the roller axle 1301. The base body 101 has a roller receptacle 1302 on its bottom surface 102 for receiving the roller axle 1301, wherein an elastic clamping element 502 is arranged in the roller receptacle 1302 such that a clamping connection between the roller receptacle 1302 and the roller element 104 is provided. The elasticity and / or the size of the clamping elements 502 is configured such that the roller element 104 can only be released from the roller receptacle 1302 when a decoupling force is greater than the weight of the roller element 104 is applied.

[0152] The roller receptacle 1302 is designed, for example, as a receiving fork, such that the roller axle 1301 of the roller element 104 is clamped into the receptacle 1302 by the clamping element 502. The roller element 104 is then designed such that it rotates about the clamped roller axle 1301. Furthermore, the roller receptacle 1302 can be pivotally attached to the support structure 1304 about a pivot axis 1304, which is perpendicular to the axis of rotation 1303 and runs within an xy-plane, so that the roller receptacle 1302, together with the roller element 104, can pivot in and out relative to the platform 100. The pivot spring 311 is arranged between the roller receptacle 1302 and the support structure 1304 such that a pivoting movement of the roller receptacle 1302 relative to the support structure 1304 can be damped in a defined manner. The pivot springs 311, for example, havea degressive spring characteristic curve, which reduces the spring force as the deflection of the roller mount 1302 to the support structure 1304 increases.

[0153] The roller receptacle 1302 is rotatably mounted on the base body 101 or on a corresponding support structure 1304 about a pivot axis 1303, wherein the roller element 104 is attached to the roller receptacle 1302 eccentrically and at a distance from the pivot axis 1303. Thus, when the direction of travel of the platform 100 changes, the roller element 104 can roll quickly and without resistance in the new direction of travel.

[0154] It should also be noted that "comprehensive" does not exclude any other elements or steps, and "a" or "an" does not exclude a plurality. Furthermore, it should be noted that features or steps described with reference to one of the above embodiments may also be used in combination with other features or steps from other embodiments described above. Reference numerals in the claims are not to be considered as limitations. Reference symbol list:

[0155] 100 platform 309 coupling point 101 basic body 310 electrical plug 102 floor area 311 Swivel spring 103 surface 312 planet gear 104 Roller element 313 fastening screw 105 Installation area 314 first contact surface 106 Mounting area 315 second contact surface 107 Installation thickness 316 hemispherical protrusions 108 Mounting thickness 317 hemispherical depressions 109 Transition area 110 outer edge area 401 opening 111 Dome area 112 electrical contact surface 501 Roller mounting unit 113 antenna module 502 elastic clamping element 114 opening 130 Floor 601 Mounting point for clamping element 201 Mounting device 700 Power board 701 first battery cell 300 Powertrain 702 second battery cell 301 drive unit 703 first contact PIN 302 Rotating shaft 704 second contact pin 303 drive shaft 705 Recording socket 304 Gear unit 305 additional drive unit 900 Radiation characteristics 306 Rotary pin 901 Mounting point for clamping element 307 Swivel axis 308 axis of rotation 1001 Housing 1002 Antenna electronics 1003 Space volume 1101 first functional module 1102 second functional module 1103 Connection board 1104 Contact plug 1105 Contact point 1201 electronic module 1202 electronic component 1203 Damping element 1204 Fastener 1205 Support structure 1206 Survey 1207 Connecting plates 1301 Roller axle 1302 Roller mounting 1303 pivot axis roller mount 1304 Swivel axis roller mount α Angle transition area β Angle of outer edge area γ Angle swivel spring a Axial direction nD Normal damping level nS Normal pivot plane

Claims

1. A platform (100) for a dummy for simulating traffic situations, the platform (100) comprising a base body (101), which comprises a bottom surface (102) and a surface (103) formed opposite the bottom surface (102), at least one roller element (104), which is arranged on the bottom surface (102), wherein the roller element (104) is formed such that the base body (101) is movable along a floor by means of the roller element (104), wherein the roller element (104) comprises a roller axle (1301) and is rotatable around the roller axle (1301), wherein the base body (101) comprises a fastening region (106) and an installation region (105), wherein a fastening device (201) for fastening the dummy is formed on the fastening surface of the fastening region (106), wherein functional elements can be installed in the installation region (105), wherein the base body (101) is formed so thin that a collision vehicle can drive over the base body (101) without damage, characterized in that - the base body (101) comprises a roller receptacle (1302) on the bottom surface (102) for receiving the roller axle (1301), and - an elastic clamping element (502) is arranged in the roller receptacle (1302) such that a clamping fastening between the roller receptacle (1302) and the roller element (104) can be provided.

2. The platform (100) according to claim 1, wherein the platform (100) comprises at least one of the following features: wherein the base body (101) is formed in a stepped manner, wherein in particular a fastening thickness (108) between the bottom surface (102) and the surface (103) in the fastening region (106), in particular 30 mm, 25 mm, 20 mm, 15 mm, 10 mm, or 5 mm, is smaller than an installation region (105) between the bottom surface (102) and the surface (103) in the installation region (105), wherein the fastening thickness (108) is less than 40 mm, in particular less than 35 mm, less than 30 mm, less than 25 mm, less than 20 mm, less than 15 mm, less than 10 mm, and / or wherein the installation thickness (107) is less than 60 mm, less than 55 mm, in particular less than 50 mm, less than 45 mm, less than 40 mm, less than 35 mm, less than 30 mm, less than 25 mm, less than 20 mm, less than 15 mm, less than 10 mm, and / or wherein the maximum thickness of the platform between a floor support of the roller element (104) on the floor (130) and the surface (103), in particular of the installation region, is less than 60 mm, less than 55 mm, in particular less than 50 mm, 45 mm, 40 mm or 35 mm, wherein the fastening region (106) comprises more than 30%, in particular more than 40%, 50%, or 70%, of the surface (103) of the base body (102), wherein a transition region (109) is formed between the installation region (105) and the fastening region (106), wherein the surface (103) in the transition region (109) comprises an angle (α) to the surface (103) in the installation region (105) and / or the fastening region (106) of between 5° and 45°, in particular between 5° and 15°, wherein the base body (101) comprises outer edge regions (110), which surround the fastening region (106) and / or the installation region (105), wherein the outer edge regions (110) are formed in a wedge-shaped manner, wherein at least one wedge-shaped outer edge region (110) comprises an opening angle of less than 30°, in particular less than 25°, wherein the outer edge regions (110) comprise a radiation-absorbing, in particular radar-wave-absorbing, surface (103), wherein the surface of the outer edge regions (110) comprises a gray coating, in particular RAL 7005 or RAL 7035, wherein the surface (103) comprises a dome-shaped cover element (111) in the region of the roller element (104).

3. The platform (100) according to claim 1 or 2, further comprising a drive train (300), which comprises a drive unit (301), wherein the roller element (104) is coupled to the drive unit (301) for transmitting a drive torque, wherein the drive train (300) and the roller element (104) are coupled one behind the other along an axial direction such that the drive train (300) together with the roller element (104) is at least partially present in a receiving opening (401) in the bottom surface (102) of the base body (102), wherein the drive train is arranged with the roller element (104) pivotable into and out of the receiving opening (401).

4. The platform (100) according to claim 3, wherein the platform (100) comprises at least one of the following features: wherein the drive unit (301) comprises a drive shaft (303) and the roller element (104) comprises a rotary shaft (302), wherein the drive unit (301) and the roller element (104) are arranged such that the drive shaft (303) and the rotary shaft (302) run parallel to the axial direction, wherein the drive unit (301) and the roller element (104) are arranged such that the drive shaft (303) and the rotary shaft (302) run coaxially, wherein the drive train comprises a gear unit (304), in particular a planetary gear, is arranged between the drive shaft (303) and the rotary shaft (302) such that a drive torque of the drive shaft (303) can be transmitted to the rotary shaft (302) in a translated manner, wherein the drive train comprises a further drive unit (305), wherein the further drive unit (305) is coupled to the gear unit (304) such that a further drive torque can be transmitted from the drive shaft (303) to the rotary shaft (302) in a translated manner, wherein the gear unit (304) comprises a planetary gear with at least a first and a second planetary wheel (312), wherein the drive unit (301) is coupled to the first planetary wheel (312) and the further drive unit (305) is coupled to the second planetary wheel (312), wherein the drive train (300) comprises, in particular at an axial end, a rotary pin (305), which forms a pivot axis (307), wherein the rotary pin (305) is coupled to the base body (101), wherein the pivot axis (307) runs transversely to the axial direction of the drive train (300), wherein the drive train (300) comprises an electrical coupling point (309) at the axial end for coupling an electrical plug, wherein the electrical plug (310) is connected to the coupling point (309) in a watertight manner, in particular by means of an adhesive connection and / or a shrink hose connection.

5. The platform (100) according to claim 3 or 4, further comprising a pivot spring (311), which is arranged between the drive train (300) and the base body (101) such that a pivot movement of the drive train (300) relative to the base body (101) can be damped in a defined manner, wherein the pivot spring (311) comprises in particular a degressive spring characteristic curve, which reduces the spring force with an increase in the springing of the drive train (300) into the receiving opening (401), wherein in particular the pivot spring (311), in particular as a helical spring, generates a spring force along a spring force direction, wherein the pivot spring (311) is arranged between the base body (101) and the drive train (300) such that the spring force comprises an angle (γ) of between 20° and 70°, in particular between 40° and 50°.

6. The platform (100) according to any one of the claims 3 to 5, wherein the platform (100) comprises at least one of the following features: wherein the drive train comprises a roller fastening unit (501), to which the roller element (104) is exchangeably fastenable, wherein the roller fastening unit (501) is rotatable about the axial direction, wherein the roller element (104) is releasably fastenable to the roller fastening unit (501) by means of a fastening screw (313), in particular by means of only one fastening screw (313), wherein the screw-in direction of the fastening screw (313) is formed in particular parallel to the axial direction, wherein the roller element (104) comprises a first contact surface (314) and the roller fastening unit (501) comprises a second contact surface (315), wherein the first contact surface (314) and the second contact surface (315) comprise toothing elements corresponding to one another in order to provide a form-fitting coupling, wherein the corresponding toothing elements are formed such that a Hirth toothing can be provided or wherein the corresponding toothing elements are formed as hemispherical elevations (316) and respectively corresponding hemispherical indentations (317).

7. The platform (100) according to any one of the claims 1 to 6, further comprising a power board (700), which is arranged in the base body (101), in particular in the installation region (105), and at least one battery cell (701), which is coupled to the power board (700) such that the power board (700) enables a charging of and a drawing of current from the battery cell (701).

8. The platform (100) according to claim 7, wherein the platform (100) comprises at least one of the following features: wherein the platform (100) further comprises at least two battery cells (701, 702), wherein the battery cells (701, 702) are connected in parallel, wherein the individual voltages of the battery cells (701, 702) can be highly modulated up, wherein the platform (100) comprises more than 10, in particular more than 16 battery cells (701, 702), wherein at least one of the battery cells (701, 702) is formed as a lithium titanate battery with a nominal voltage between 1.2 V and 3 V, in particular 2.4 V, wherein at least one of the battery cells (701, 702) is formed as a flat battery with a quadrangular circumference and a thickness of less than 22 mm, in particular less than 14 mm, wherein at least one of the battery cells (701, 702) comprises a first pole, which is formed with a first contact pin (703), and a second pole, which is formed with a second contact pin (704), wherein the first contact pin (703) and the second contact pin (704) are coupled to respective receiving sockets (705) of the power board (700), wherein the first contact pin (703) and the second contact pin (704) have a different length, wherein the base body (101) comprises at least two electrical contact surfaces (112), which are freely accessible from outside the platform (100), wherein the contact surfaces (112) are connected to the power board (700) in a current-conducting manner, wherein the two electrical contact surfaces (112) are formed in particular such that sliding contacts can be provided with contact points of a stationary charging station.

9. The platform (100) according to any one of the claims 1 to 8, further comprising at least one antenna module (113), in particular a WLAN or a GPS antenna module (113), wherein the base body (101) comprises a receiving opening (114) on the surface (103), in which the antenna module (113) is arranged, wherein the platform (100) comprises at least one of the following features: wherein the antenna module (113) is arranged in the receiving opening (114) such that the antenna module (113) terminates flush with the surface (103), or wherein a surface of the antenna module (113) is offset 6 mm, in particular 3 mm or 1 mm from the surface (103) of the base body (101) into the interior of the receiving opening (114), wherein the antenna module (113) is formed as a flat antenna, wherein the antenna module (113) is in particular cylindrical with a diameter of 90 mm to 50 mm, in particular of 70 mm, wherein the antenna module (113) comprises a radiation characteristic (900) with at least one main lobe, which lies substantially within a horizontal plane when the platform (100) rests on the floor (130), wherein the receiving opening (114) constitutes a passage opening between the surface (103) and the bottom surface (102) of the base body (102), wherein the antenna module (113) comprises a housing (1001) and an antenna electronics (1002), which is fastened in the housing (1001), wherein a spacing volume (1003) is present between an upper side of the housing (1001), which is flush with the surface (103) of the base body (101) or protrudes from the surface (103) in the direction of the environment, and the antenna electronics (1002), wherein the upper side of the housing (1001) is formed in an elastically deformable manner such that an elastic deformation into the spacing volume (1003) can be provided, wherein elastic clamping elements (502) are provided in the receiving opening (114) between the base body (101) and the antenna module (113) such that a releasable clamping fastening of the antenna module (113) can be provided in the receiving opening (114), wherein the antenna module (113) comprises a receptacle (901) in the circumferential surface for fastening the clamping element (502), wherein the antenna module (113) comprises a signal coupling point in the region of the surface (103) of the base body (102) such that an antenna signal can be transmitted from the signal coupling point to a further signal coupling point of the dummy in a contactless manner.

10. The platform (100) according to any one of the claims 1 to 9, wherein the elasticity of the clamping elements (502) is configured such that a release of the roller element (104) from the roller receptacle (1302) is enabled only at a decoupling force which is higher than the weight force of the roller element (104).

11. The platform (100) according to any one of the claims 1 to 10, wherein the roller receptacle (1302) is arranged on the base body (101) rotatably about an axis of rotation (308), wherein the roller element (104) is fastened eccentrically and spaced apart from the axis of rotation (308) on the roller receptacle (1302).

12. The platform (100) according to any one of the claims 1 to 11, further comprising at least one electronic module (1201), which is arranged in the base body (101), wherein the electronic module (1201) comprises an electronic component (1202), in particular with a circuit board, wherein the electronic module (1201) comprises a planar viscoelastic damping element (1203), in particular a cylindrical damping element (1203), to which the electronic component (1202) is fastened, wherein the electronic module (1201) comprises a carrier structure (1105), to which the viscoelastic damping element (1203) is fastened, so that vibrations, which act on the electronic component (1202) from the base body (101), can be damped by means of the viscoelastic damping element (1203).

13. The platform (100) according to claim 12, wherein the platform (100) comprises at least one of the following features: wherein the viscoelastic damping element (1203) extends within a damping plane, the normal of which is parallel to the normal of a floor plane, such that the damping element (1203) is stiffer with respect to a deformation perpendicular to the normal of the floor plane than with respect to a deformation parallel to the normal of the floor plane, so that vertical forces, which extend parallel to the normal of the floor plane, can be damped more strongly by means of the viscoelastic damping element (1203) than horizontal forces, which extend perpendicular to the normal of the floor plane, wherein the viscoelastic damping element (1203) is fastened to the carrier structure (1105) by means of a fastening screw (313), wherein the fastening screw (313) comprises in particular a screw-in direction parallel to the normal of the floor plane, wherein the surface (103) is formed reflective at least in regions, in particular for thermal radiation, wherein the reflective regions of the surface (103) comprise in particular a mean roughness value Ra between Ra ≥ 0.1 µm to Ra ≥ 12.5 µm, wherein the reflective surface has a reflectance of more than 80%, in particular more than 90% or more than 95%.

14. The platform (100) according to any one of the claims 1 to 13, further comprising a reflection element for reflecting radiation, in particular thermal radiation, wherein the reflection element runs along the surface (103) of the base body (101) spaced apart by an insulating distance, wherein in particular the insulating distance is filled with air or with an insulating material for thermal insulation.

15. The platform (100) according to any one of the claims 1 to 14, further comprising at least one first functional module (1101) and a second electronic functional module (1102), which are arranged in the base body (101), a connecting circuit board (1103), which is arranged between the first and second electronic functional module (1101, 1102) and the surface (103) of the base body (102), wherein the first and second electronic functional module (1101, 1102) each comprise at least one contact plug (1104) on a side facing the surface (103) of the base body (102), wherein the connecting circuit board (1103) extends along the surface (103) between the first and second electronic functional module (1101, 1102) and comprises respective contact points (1105) for receiving the contact plugs (1104) of the first and second electronic functional modules (1101, 1102), so that the functional modules (1101, 1102) can be plugged vertically onto the connecting circuit board (1103).