DE102014000747A1 - A system and method for monitoring a gap between a charging plate of a stationary induction charging device and a loading plate of a parked vehicle - Google Patents

Abstract

The present invention comprises a system for monitoring a clearance between a loading plate (3) of a stationary induction charging device (4) and a loading plate (5) of a parked vehicle (6), the loading plate (5) thereof relative to the loading plate (3) of the stationary induction charging device (4) that an alternating magnetic field is generated in the loading plate (5) of the vehicle (6) by an alternating magnetic field generated by the charging plate (3) of the stationary induction charging device (4), the system comprising at least one image forming sensor device (1) and a control device (2), wherein the image-forming sensor device (1) is adapted to detect the gap between the loading plate (3) of the stationary induction charging device (4) and the loading plate (5) of the parked vehicle (6) and the detected data to the control unit (2) to transmit, and the control unit (2) is adapted to the data of the imaging Sen soreinrichtung (1) to evaluate whether there is at least one object in the space between the loading plate (3) of the stationary induction charging device (4) and the loading plate (5) of the parked vehicle (6) and / or which vertical distance (A) the loading plate (3) of the stationary induction charging device (4) and the loading plate (5) of the parked vehicle (6) to each other. The present invention also includes a corresponding method.

Description

The present invention includes a system and method for monitoring a gap between a charging plate of a stationary induction charging device and a charging plate of a parked vehicle.

In (also) electric motor driven vehicles, such as electric and hybrid vehicles, rechargeable batteries, for example those based on lithium ions, are predominantly used for the current supply of the existing electric traction motors in the vehicle according to the current state of the art.

For charging these batteries are basically several technical solutions available, in particular the wired and the contactless (line-free) energy transfer.

In wireline power transmission, electric power is transmitted to the vehicle by means of an electric cable, the electric cable either being part of a charging device and plugged into a charging socket provided on the vehicle, or the electric vehicle having a charging cable plugged into a charging receptacle of the charging device can be.

In the contactless energy transfer, the energy transfer takes place with the aid of an alternating magnetic field. To generate the alternating magnetic field, an alternating current is generated by means of power electronics, which flows through the coil (primary coil) of a stationary induction charging device (infrastructure side). The alternating magnetic field thus generated induces a voltage in the coil (secondary coil) of a charging plate integrated in the vehicle.

In the case of conducted power transmission, it is desirable that in the case of contactless power transmission, it is necessary to position the vehicle sufficiently accurately relative to the charging station of the stationary induction charging apparatus.

The DE 10 2011 007 771 A1 describes a system for an electric vehicle, by means of which the electric vehicle can be guided for docking to a loading device in a docking position, with at least one sensor element arranged on the electric vehicle, which is designed to detect a path to the docking position and through which the electric vehicle can be guided into the docking position , With the sensor element, which may be, for example, an optically acting sensor such as a laser, Lidar- or scanner system, a detection of the environment of the electric vehicle can be performed.

And from the WO 2011/006884 A2 is an electronic positioning aid for electric vehicles in the vicinity of inductive charging stations known, in the vehicle existing or optionhalber provided sensors based on radar, laser, lidar, ultrasound, infrared, satellite or induction and the parking aids based thereon are additionally used for inductive charging stations in the Close range on the basis of the on-site bobbin case or the internal coil technology without visual environment representation, fully automatically detect without manual operator input and without additional reflectors and position the vehicle in computer-aided maneuvering with the coil on the vehicle floor sufficiently accurate over the on-site coil without the two coils with additional Shifting and lifting devices must be brought into an even more precise or closer superposition.

From the prior art, the monitoring of the environment of an electric motor driven vehicle during an energy transmission is also known.

That's how it describes DE 10 2011 109 532 A1 a system and a method for operating a system, wherein the system comprises at least one machine and a handset. The mobile part has an energy store, from which a travel drive of the mobile part for moving the mobile part relative to the machine can be supplied. The machine and the handset each have a means for energy transfer, wherein, in particular when docking the handset to the machine, energy from the energy storage of the handset to the machine, in particular to an energy storage of the machine is transferable. The handset has a securing device, for example in the form of a laser scanner, with which a space area, in particular a security area, can be monitored for intrusion of a person and / or an object into the security area, which extends around the mobile part and the machine.

In contactless energy transfer, this generally occurs across an air gap provided between the charging plate of the stationary induction charging device and the charging plate of the vehicle. Within the air gap large magnetic field strengths can occur. When a body part of a human or an object enters or is located in the space between the stationary pallet and the mobile pallet, this presents a risky situation.

It is an object of the present invention to provide a system and a method for monitoring a gap between a charging plate of a stationary induction charging device and a loading plate of a parked vehicle, with which, inter alia, such risky situations can be avoided.

This object is achieved by the system according to claim 1 and the method according to claim 7. Advantageous developments of the system and the method are the subject of the dependent claims.

According to the present invention, there is provided a system for monitoring a gap between a charging plate of a stationary induction charging device and a parking plate of a parked vehicle, the charging plate of which is positioned relative to the charging plate of the stationary induction charging device such that an alternating magnetic field generated in the charging plate of the stationary induction charging device forms an alternating magnetic field in the charging plate of the vehicle is generated.

The system has at least one imaging sensor device and a control device and is characterized in that the imaging sensor device is set up to detect the gap between the charging plate of the stationary induction charging device and the charging plate of the parked vehicle and to transmit the acquired data to the control device.

According to the invention, the control device is set up to evaluate the data of the imaging sensor device as to whether there is at least one object in the space between the loading plate of the stationary induction charging device and the loading plate of the parked vehicle and / or to which vertical distance the loading plate of the stationary induction charging device and the loading plate of the parked vehicle to each other.

As mentioned above, in contactless energy transfer, it usually passes across the air gap provided between the charging plate of the stationary induction charging device and the charging plate of the vehicle. During the contactless energy transfer (charging), the driver is usually no longer present and thus can not ensure that no objects, such as body parts of persons (such as fingers, a hand, a foot, etc.) or objects (such as metal parts) get into the space between the pallets.

The system according to the invention overcomes this disadvantage since it always monitors during an unattended charging process whether or not there is an object in the intermediate space between the pallets.

For optimum efficiency of contactless energy transfer, a predefinable maximum distance between the charging plates must not be exceeded. By the system according to the invention, the vertical distance between the pallets can be determined, whereby inefficient charging can be avoided. Also, a change in the vertical distance between the charging plate of the stationary induction charging device and the charging plate of the vehicle may be detected, for example, when the vehicle is being loaded or unloaded.

According to a first advantageous development, the system further comprises a stationary induction charging device and the control device is further configured to transmit at least one control signal to the stationary induction charging device, wherein the control device is adapted to the stationary induction charging at least one control signal for stopping or inhibiting the Generation of an alternating magnetic field to be transmitted through the stationary pallet, if and / or as long as there is an object in the space between the pallet of the stationary induction charging and the pallet of the parked vehicle.

By means of this first advantageous development of the system, risky situations which can arise, for example, as a result of an object penetrating into the intermediate space between the loading plate of the stationary induction charging device and the loading plate of the vehicle, can be safely avoided even in the case of unattended loading processes.

According to a second advantageous development of the system, this comprises a stationary induction charging device whose loading plate is movable in the vertical direction and / or a vehicle in which the distance of its loading plate is adjustable to the underlying soil, and the controller is adapted to the induction charging and or to be able to transmit the vehicle at least one control signal by means of which by vertical movement of the loading plate of the stationary induction charging device and / or by a vertical movement of the loading plate of the vehicle and / or a vertical movement of the vehicle underbody, the vertical distance between the loading plate of the stationary Induction charger and the pallet of the vehicle is changeable.

By this advantageous development, for example, an automatic adjustment of the distance between the two pallets can be performed become. In this way, an optimum efficiency of energy transfer can be achieved and / or it can be a placement of the loading plate of the vehicle on the pallet of the stationary induction charging device can be avoided (eg. When loading the vehicle).

According to a further advantageous development of the system, the imaging sensor device comprises at least one 3D camera device for visible light, a 3D camera device for infrared light, a radar device, and / or a time-of-flight device. The imaging sensor device advantageously comprises at least one laser scanner, preferably a 3D laser scanner.

• – Einparkhilfe,
• – Garagentor-Zustandsprüfung,
• – Objekt-Erfassung im Umfeld des Fahrzeugs,
• – Parkplatz Frei/Belegt-Erkennung, und/oder
• – Bewegungserkennung von Objekten.

Further advantages result if the system is further configured to be able to perform at least one subfunction with the following functions:

• - parking aid,
• - garage door condition check,
• Object detection in the environment of the vehicle,
• - Parking Free / Busy detection, and / or
• - Motion detection of objects.

The present invention also includes a method of monitoring a gap between a charging plate of a stationary induction charging device and a parking plate of a parked vehicle whose charging plate is positioned relative to the charging plate of the stationary induction charging device such that an alternating magnetic field is generated by an alternating magnetic field generated by the charging plate of the stationary induction charging device the loading plate of the vehicle is generated by means of a system having at least one imaging sensor device and a control unit.

The method comprises at least the following steps:
Detecting the gap between the loading plate of the stationary induction charging device and the loading plate of the parked vehicle by means of the imaging sensor device,
Transmitting the acquired data to the controller, and
Evaluating the data of the imaging sensor device by the control device to whether there is at least one object in the space between the charging plate of the stationary induction charging device and the pallet of the parked vehicle and / or which vertical distance the loading plate of the stationary induction charging device and the loading plate of the parked vehicle to each other ,

According to a first advantageous development of the method, this further comprises the step of transmitting at least one control signal from the controller to the stationary induction charging device for stopping or inhibiting the generation of an alternating magnetic field by the charging plate of the stationary induction charging device, if and / or as long as there is in the space between the Loading plate of the stationary induction charging device and the pallet of the parked vehicle is an object.

According to a second advantageous development of the method, a system comprising a stationary induction charging device, the loading plate of which is movable in the vertical direction, and / or a vehicle, in which the distance of its loading plate to the underlying ground is adjustable, comprises
transmitted by the controller to the induction charging device and / or the vehicle at least one control signal, by means of which by vertical movement of the loading plate of the stationary induction charging device and / or by a vertical movement of the loading plate of the vehicle and / or a vertical movement of the vehicle underbody, the vertical distance changed between the loading plate of the stationary induction charging device and the loading plate of the vehicle.

Further refinements and developments of the method according to the invention will become apparent from the disclosure of the system according to the invention, its developments and the embodiments described below, which also apply to the inventive method accordingly.

The present invention will be explained in more detail with reference to the accompanying drawings.

Showing:

1 FIG. 2 is a schematic view of an arrangement of a loading plate of a stationary induction charging device, an imaging sensor device and a vehicle parked above it; FIG.

2 FIG. 4 is a schematic side view of an arrangement of a charging plate of a stationary induction charging device, an imaging sensor device and a subsection of a subfloor of a vehicle with a loading plate integrated therein. FIG.

The illustrations in the figures are purely schematic and not to scale. Within the figures, the same or similar elements are provided with the same reference numerals.

The embodiments explained below represent preferred embodiments of the Of course, the present invention is not limited to these embodiments.

As in the 1 and 2 is shown schematically includes the inventive system for monitoring a gap between a pallet 3 a stationary induction charging device 4 and a pallet 5 a parked vehicle 6 at least one imaging sensor device 1 and a controller 2 ,

The imaging sensor device 1 is set up the space between the pallet 3 the stationary induction charger 4 and the pallet 5 the parked vehicle 6 to capture and the captured data to the controller 2 transferred to.

The control unit 2 is adapted to the data of the imaging sensor device 1 To evaluate whether in the space between the pallet 3 the stationary induction charger 4 and the pallet 5 the parked vehicle 6 at least one object is located and / or which vertical distance A the loading plate 3 the stationary induction charger 4 and the pallet 5 the parked vehicle 6 to each other. The results of the evaluation by the control unit 2 can then, for example, a driver of the vehicle 6 be signaled in acoustically, visually and / or haptically perceptible manner.

Systems for conducting, inductive charging of batteries are known from the prior art. Also known from the prior art systems for inductive charging of traction batteries of electric motor driven vehicles and parking aids for aligning the pallet to each other 3 the stationary induction charger 4 and the pallet 5 of a vehicle 6 , In this prior art known in the art therefore need not be discussed in detail in this application.

Also known in the art are various 2D and 3D sensor imaging devices useful in the present invention. Advantageously, the system according to the invention comprises at least one visible light 3D camera device, one infrared light 3D camera device, one radar device, and / or one time-of-flight device as the imaging sensor device. The imaging sensor device preferably comprises 1 at least one laser scanner, more preferably a 3D laser scanner.

In camera devices for visible or infrared light, the sensor device 1 For example, also have a "light source", which is used to illuminate the detection range of the sensor device 1 serves. Detection devices of the sensor device based on different technical principles can be used simultaneously or alternatively to capture image data.

Through the use of at least one 3D sensor device with which stereoscopic or three-dimensional images can be detected, recognition and differentiation of the spatial conditions (foreground, background, position of the loading plate of the stationary induction charging device, position of the loading plate of the vehicle, vertical distance of the loading plates to each other, etc.) with greater certainty than is the case with only two-dimensional image capture. Depending on the embodiment of the system according to the invention, however, only two-dimensional image acquisition and evaluation can be sufficient.

Stereoscopic or three-dimensional image acquisition can, for example, in a conventional manner by a corresponding stereoscopic arrangement and alignment of the detection axes of two camera devices for visible or infrared light and a corresponding evaluation of the captured image data by the controller 1 be achieved. The same applies to one or more radar devices.

Comparatively modern 3D sensor devices represent so-called "time-of-flight" sensor devices. In devices and methods according to the time-of-flight principle (transit time principle), a signal emitted by a transmitting device (for example a light pulse) is emitted. reflected on an object and the reflected signal detected by a receiving device. Based on the speed and the duration of the signal, the distance of the object from the receiving device can be determined.

Time-of-flight facilities include three essential components: an active illumination device, an imaging sensor device, and a receiving optic. The active illumination device emits modulated light, for example in the near infrared range. Light striking an object or surface is reflected back to the device and projected onto the image sensor with the aid of the receiving optics. By correlating emitted and received signals, it is possible to calculate for each pixel the distance of the illuminated object / scene from the sensor. Time-of-flight facilities provide two different pieces of information for each pixel, the intensity (amplitude, gray value) and the distance (distance value, depth value) from the device. The collected information then gives, for example, (a) Amplitude image (s) and / or distance image (s) or such images can be generated from the information obtained.

A time-of-flight sensor is a matrix consisting of distance sensors, which is usually manufactured using conventional CMOS technology. Therefore, imaging and 3D measurement capabilities can be combined with electronics such as analog-to-digital converters, etc. All the "intelligence" of the time-of-flight sensor, including the distance calculation for each pixel, is integrated into the chip. Therefore, time-of-flight pixels are sometimes called "smart pixels."

One of the best known time-of-flight distance determining devices is a PMD system or PMD camera system. In such a PMD camera system, a photonic mixer detector (PMD sensor also called PMD = Photonic Mixing Device) is included as a sensor. A PMD sensor has an on or, as a rule, multi-line array of PMD detector elements and a receiving optics.

In a laser scanner, the surface of bodies is swept over lines or raster-like by means of a laser beam. With the help of so-called imaging laser scanners, not only the object geometry but also the intensity of the reflected signal can be detected. The result is an image of the objects similar to a black and white photo.

In 3D laser scanning, the surface geometry of objects is detected digitally by means of pulse transit time, phase difference compared to a reference or by triangulation of laser beams. In this case, a discrete set of three-dimensional sampling points is obtained, which is also referred to as a point cloud. The coordinates of the measured points are determined from the angles and the distance with respect to the origin (location of the laser scanner). Based on the point cloud, either dimensions (lengths, distances, angles, etc.) can be determined, or a closed surface can be constructed from triangles, which is also referred to as meshing or meshing.

The structure and operation of the various imaging 2D and 3D sensor devices 1 , such as time-of-flight devices and 3D laser scanners, are known to those skilled in the art and / or may be taken from the literature.

The of the sensor device 1 In principle, the image information obtained can in principle be reused and / or further processed in various ways.

According to the invention, the data of the imaging sensor device 1 evaluated there, whether in the space between the pallet 3 the stationary induction charger 4 and the pallet 5 the parked vehicle 6 at least one object is located and / or which vertical distance A the loading plate 3 the stationary induction charger 4 and the pallet 5 the parked vehicle 6 to each other. This can be done in a conventional manner by the controller 2 an evaluation of the of the imaging sensor device 1 data obtained. For this purpose, the control device can have suitable memory devices for original and / or processed image data and a processor (microprocessor) with the aid of which an image evaluation program can be executed.

In the system according to the invention, the arrangement of the imaging sensor device is subject 1 in terms of the charging plate 3 the stationary induction charger 4 no particular limitation and any suitable arrangement may be chosen. How out 2 is apparent, it is only necessary that the detection range of the imaging sensor device 1 such is that the space under the vehicle can be detected with sufficient accuracy.

As in the 1 and 2 illustrated, for example, the imaging sensor device 1 on a floor area near the pallet 3 the stationary induction charger 4 be arranged below or outside the "vehicle silhouette". In the present case, a distance of, for example, 5 cm, 10 cm, 15 cm, 20 cm, 30 cm, 40 cm, 50 cm, 75 cm, 1 m, 1.25 m, 1.5 can be referred to as 'near by' m or 2 m.

However, other arrangements of the imaging sensor device are also encompassed by the present invention 1 in terms of the pallet 3 , Thus, for example, the imaging sensor device 1 also on or on the pallet 3 the stationary induction charger 4 be arranged or in a ground-level wall area of a parking facility, such as, for example, a garage, a carport or a parking garage.

A number of vehicle models already have imaging sensor devices 1 , for example in the form of one or more camera systems, which are used, for example, for a parking assistance system, a distance control system and / or a brake assist system. For the system according to the invention can also such vehicle-side, imaging sensor devices 1 be used.

For safety reasons, for reasons of protection of the stationary induction charging device 4 and his pallet 3 Against vandalism and / or for reasons of practicability is the pallet 3 the stationary induction charger 4 usually in the ground 7 arranged, or protrudes the pallet 3 the stationary induction charger 4 a little bit off the ground 7 out. The pallet 5 of a vehicle 6 is usually in the subsoil 8th the vehicle integrates or stands out a little from this.

If the detection range of vehicle-mounted, imaging sensor devices 1 not the area between the subfloor 8th of the vehicle and the ground area located below the vehicle 7 As is the case, for example, with camera systems for parking assistance systems (whose detection range usually comprises an environment of the vehicle), the required detection range can be achieved by means of a deflecting device or reflection device on the vehicle side. But it is also not vehicle-side (ie vehicle external) deflection or reflection device possible, for example, at a suitable distance in front of and / or behind the parked vehicle 6 is arranged (for example, at a distance of 5 cm, 10 cm, 15 cm, 20 cm, 30 cm, 40 cm, 50 cm, 75 cm, 1 m, 1.25 m, 1.5 m, 2 m, 2 , 5 m, 3 m). In these embodiments, it may happen that the imaging sensor device 1 a "mirror image", but this is not detrimental, since this in the processing of the data of the imaging sensor device 1 can be taken into account.

The recognition of the pallet 3 the stationary induction charger 3 and / or the charging plate 4 of the vehicle 5 in the from the image-forming sensor device 1 captured image data can be done in any suitable manner. For example. can the induction charger 3 have characteristic reflective properties, one or more (visible to the human eye or invisible) markers and / or a characteristic shape, which by means of an evaluation of the image-forming sensor device 1 captured image data can be detected. Also can from the pallet 3 a spatially locatable signal is sent to the control unit 2 can be transmitted and evaluated by this. The same applies to the pallet 5 of the vehicle 6 ,

Advantageously, the system comprises a stationary induction charging device 4 and is the controller 2 further adapted to the stationary induction charging device 4 to be able to transmit at least one control signal, wherein the control device 2 is adapted to the stationary induction charging device 4 at least one control signal for stopping or inhibiting the generation of an alternating magnetic field by the charging plate 3 the stationary induction charger 4 to transfer, if and / or as long as in the space between the pallet 3 the stationary induction charger 4 and the pallet 5 the parked vehicle 6 an object is located.

As mentioned above, in a leadless (contactless) charging between the pallets 3 and the pallet 5 high magnetic field strengths occur. For example, if during such a charging process, a metallic or more generally expressed electrically conductive object in the vertical distance A between the pallet 3 and the pallet 5 this can heat up strongly, resulting in a flammable combustible material in the soil area 7 under the vehicle or damage to the vehicle underbody 8th or even the vehicle 6 can lead.

Further advantages arise when the system is a stationary induction charging device 4 whose pallet 3 is movable in the vertical direction and / or a vehicle 6 in which the distance of his pallet 5 to the ground underneath 7 is adjustable, includes and the control unit 2 is adapted to the stationary induction charging device 4 and / or the vehicle 6 to transmit at least one control signal, by means of which by a vertical movement of the pallet 3 the stationary induction charger 4 and / or by a vertical movement of the pallet 5 of the vehicle 6 and / or a vertical movement of the vehicle underbody 8th the vertical distance A between the pallet 3 the stationary induction charger 4 and the pallet 5 of the vehicle 6 is changeable.

As already mentioned above, in order to achieve a high degree of efficiency in a contactless charging process, an air gap with the greatest possible width between the charging plate is provided 3 and the pallet 5 required. By the above-mentioned development of the system according to the invention is a relative positioning of the pallet 3 and the pallet 5 in the vertical direction, whereby during and outside a contactless charging an optimal width of the air gap between the pallet 3 and the charger plate 5 can be adjusted and maintained.

At the same time, the safety of people can be ensured by, for example, pinching a body part of a human between the pallets 3 and 5 can be avoided. Also, a property damage to the vehicle 6 and / or the pallet 3 the stationary induction charger 4 avoided, for example, by a reduction in the initial Ground clearance of a parked vehicle 6 and an associated placement of the pallet 5 of the vehicle 6 on the pallet 3 can be caused. A reduction in the initial ground clearance of a parked vehicle 6 may, for example, intentionally or unintentionally by loading the vehicle 6 by getting people into the vehicle 6 , by a pressure loss in at least one tire, etc. occur.

The change in relative positioning in the vertical direction of the pallets 3 and 5 can be done by any suitable way. For example, the pallet 3 the stationary induction charger 4 be movable in the vertical direction, for example by means of a pneumatic device or by means of a motor-driven threaded device. The same can be done with the pallet 5 of the vehicle 6 be provided. A height adjustment of the pallet 5 of the vehicle 6 can, for example, but also by an intervention in a suitably equipped suspension (eg. One with air suspension) of the vehicle 6 be achieved. Also a movement of both the charging plate 3 as well as the pallet 5 is possible and useful in cases where, for example, by the movement of only one pallet 3 . 5 no optimal distance between the pallets 3 . 5 can be made for a charge, or in which by the movement of only one pallet in contact with the two pallets 3 . 5 can not be avoided.

By means of these embodiments of the system according to the invention, not only vehicles with similar ground clearance can thus be charged without contact, but also vehicles with very different ground clearance. Also, during and outside of charging processes, height changes that occur in the case of intentional or unintentional ground clearance changes can be compensated dynamically.

• – Einparkhilfe,
• – Garagentor-Zustandsprüfung,
• – Objekt-Erfassung im Umfeld des Fahrzeugs,
• – Parkplatz Frei/Belegt-Erkennung, und/oder
• – Bewegungserkennung von Objekten.

According to further advantageous embodiments and developments of the system, this system is further configured to be able to carry out at least one subfunction in the following functions:

• - parking aid,
• - garage door condition check,
• Object detection in the environment of the vehicle,
• - Parking Free / Busy detection, and / or
• - Motion detection of objects.

When using the system according to the invention as a parking aid can, for example, a parking operation of the vehicle 6 be sensory detected. With the help of the imaging sensor device 1 and the corresponding processing of the image data captured by it may be the wheels and / or other parts of the vehicle 6 be detected and the current position of the vehicle 6 with the target position of the vehicle 6 , which is required for efficient energy transfer. With the help of a communication device on the side of the contactless induction charging device 4 and a communication device on the side of the vehicle 6 the calculated distance between actual and desired position can be communicated to the driver and / or displayed. This information can also be used for an automatic or piloted parking operation.

When using the system for a garage door condition test according to the invention can with the help of the imaging sensor device 1 be detected whether a garage door is open or closed. The state of the garage door can then, for example, via a communication device on the part of the contactless induction charging device 4 communicated to other communication participants.

When using the system according to the invention for an object detection in the environment of the vehicle 6 can with the help of the imaging sensor device 1 Objects are detected that are in the area around the vehicle 6 are around. This applies with the exception of shaded areas, for example, behind the wheels, for a large area around the vehicle 6 around. Since, for example, stepping movements of persons follow a typical movement pattern, the image-forming sensor device can be used with the aid of appropriate processing 1 recorded image data also a classification on "persons" done. As a result, for example, burglars or other persons can be detected, who are unauthorized the vehicle 6 approach or stay in its vicinity. The corresponding information can then, for example, via a communication device on the part of the contactless induction charging device 4 communicated to other communication participants.

When using the system according to the invention for a parking space free / occupancy detection can, for example. With the help of the imaging sensor device 1 be recognized whether or that the parking space / parking space, in which the stationary induction charging device 4 with their pallet 3 located by a vehicle 6 is occupied. The given parking space / parking space situation can then, for example, via a communication device on the part of the contactless induction charging device 4 communicated to other communication participants.

When using the system according to the invention for motion detection of objects, the system according to the invention can be used, for example, for interactive game functions. For example, the imaging sensor device 1 in combination with a display device therefor used to provide interactive games (computer programs) with information about the player (s). For example. can through the imaging sensor device 1 a number of jumps are determined that a player is performing. Another example is evasive maneuvers (a player moves in different directions, such as left, right, forward, and / or back), from the imaging sensor device 1 detected and by the control unit 2 processed accordingly and possibly communicated. Yet another example of motion detection may include a game in which a player must attempt to travel as long as possible within the detection range of the imaging sensor device 1 to move back and thereby (locally and temporally) perform a straightforward as possible movement.

As a field for the described object or motion detections can eg. The pallet 3 serve, but of course, other areas and areas in the detection range of the imaging sensor device 1 possible.

• – Erfassen des Zwischenraums zwischen der Ladeplatte 3 der stationären Induktionsladevorrichtung 4 und der Ladeplatte 5 des geparkten Fahrzeugs 6 mit Hilfe der 3D-Sensoreinrichtung,
• – Übertragen der erfassten Daten zu dem Steuergerät 2, und
• – Auswerten der Daten der 3D-Sensoreinrichtung 1 durch das Steuergerät 2 dahin, ob sich im Zwischenraum zwischen der Ladeplatte 3 der stationären Induktionsladevorrichtung 4 und der Ladeplatte 5 des geparkten Fahrzeugs 6 wenigstens ein Objekt befindet und/oder welchen vertikalen Abstand A die Ladeplatte 3 der stationären Induktionsladevorrichtung 4 und die Ladeplatte 5 des geparkten Fahrzeugs 6 zueinander aufweisen.

The present invention also includes a method for monitoring a gap between a pallet 3 a stationary induction charging device 4 and a pallet 5 a parked vehicle 6 whose pallet 5 such relative to the pallet 3 the stationary induction charger 4 is positioned by one of the pallet 3 the stationary induction charger 4 generated alternating magnetic field an alternating magnetic field in the pallet 5 of the vehicle 6 is generated by means of a system comprising at least one 3D sensor device 1 and a controller 2 has at least the following steps:

• - Detecting the gap between the pallet 3 the stationary induction charger 4 and the pallet 5 the parked vehicle 6 with the help of the 3D sensor device,
• - Transferring the acquired data to the controller 2 , and
• - Evaluating the data of the 3D sensor device 1 through the control unit 2 There, whether in the space between the pallet 3 the stationary induction charger 4 and the pallet 5 the parked vehicle 6 at least one object is located and / or which vertical distance A the loading plate 3 the stationary induction charger 4 and the pallet 5 the parked vehicle 6 to each other.

Advantageously, the method further comprises the step of transmitting at least one control signal from the controller 2 to the stationary induction charging device 4 for stopping or inhibiting the generation of an alternating magnetic field by the charging plate 3 the stationary induction charger 4 if and / or as long as there is in the space between the pallet 3 the stationary induction charger 4 and the pallet 5 the parked vehicle 6 an object is located.

Also, it is advantageous if in the method using a system that has a stationary induction charging device 4 whose pallet 3 is movable in the vertical direction and / or a vehicle 6 in which the distance of his pallet 5 to the ground underneath 7 is adjustable, by the control unit 2 to the induction charging device 4 and / or the vehicle 6 at least one control signal is transmitted, by means of which by a vertical movement of the pallet 3 the stationary induction charger 4 and / or by a vertical movement of the pallet 5 of the vehicle 6 and / or a vertical movement of the vehicle underbody 8th the vertical distance A between the pallet 3 the stationary induction charger 4 and the pallet 5 of the vehicle 6 is changed.

Further advantageous and expedient developments and embodiments of the method according to the invention, which are encompassed by the present invention will become apparent to those skilled in the art from the above description of the system according to the invention, its advantageous developments and the described embodiments, which apply according to the inventive method.

In the present application, where "data transfer", "transmission", "communication", "communication", etc., is used, this may be done in any suitable manner, such as wired or wireless. In a wireless manner, the "transmission" or "communication", for example, by means of radio waves or light waves, unencrypted or encrypted done. If a "transmission" or "communication" is provided in the present application, it is obvious to a person skilled in the art that the corresponding devices must have or be able to access a device for carrying out the "transmission" or "communication". and that the facilities to which the "transmission" or "communication" takes place must have appropriate means for receiving the data or information or have access to such.

Since experts are required for the system according to the invention devices, devices, components, components, etc. and their possible interaction, need not be discussed in detail in the present application.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102011007771 A1 [0007]
• WO 2011/006884 A2 [0008]
• DE 102011109532 A1 [0010]

Claims (9)

System for monitoring a gap between a pallet ( 3 ) of a stationary induction charging device ( 4 ) and a pallet ( 5 ) of a parked vehicle ( 6 ), whose loading plate ( 5 ) relative to the pallet ( 3 ) of the stationary induction charging device ( 4 ) is positioned by one of the loading plate ( 3 ) of the stationary induction charging device ( 4 ) generated alternating magnetic field an alternating magnetic field in the pallet ( 5 ) of the vehicle ( 6 ), the system comprising at least one image-forming sensor device ( 1 ) and a control unit ( 2 ), characterized in that the image-forming sensor device ( 1 ) is adapted to the space between the pallet ( 3 ) of the stationary induction charging device ( 4 ) and the pallet ( 5 ) of the parked vehicle ( 6 ) and capture the collected data to the controller ( 2 ), and the control unit ( 2 ) is adapted to the data of the imaging sensor device ( 1 ) to evaluate whether in the space between the pallet ( 3 ) of the stationary induction charging device ( 4 ) and the pallet ( 5 ) of the parked vehicle ( 6 ) at least one object is located and / or which vertical distance (A) the loading plate ( 3 ) of the stationary induction charging device ( 4 ) and the pallet ( 5 ) of the parked vehicle ( 6 ) to each other. System according to claim 1, characterized in that the system further comprises a stationary induction charging device ( 4 ) and the control unit ( 2 ) is further adapted to the stationary induction charging device ( 4 ) to be able to transmit at least one control signal, wherein the control device ( 2 ) is adapted to the stationary induction charging device ( 4 ) at least one control signal for stopping or inhibiting the generation of an alternating magnetic field by the charging plate (14) 3 ) of the stationary induction charging device ( 4 ), if and / or as long as there is in the space between the pallet ( 3 ) of the stationary induction charging device ( 4 ) and the pallet ( 5 ) of the parked vehicle ( 6 ) an object is located. System according to claim 1 or 2, characterized in that the system comprises a stationary induction charging device ( 4 ), whose pallet ( 3 ) is movable in the vertical direction and / or a vehicle ( 6 ), in which the distance of his pallet ( 5 ) to the ground underneath ( 7 ) is adjustable, comprises and the control unit ( 2 ) is adapted to the stationary induction charging device ( 4 ) and / or the vehicle ( 6 ) to transmit at least one control signal, by means of which by a vertical movement of the pallet ( 3 ) of the stationary induction charging device ( 4 ) and / or by a vertical movement of the pallet ( 5 ) of the vehicle ( 6 ) and / or a vertical movement of the vehicle underbody ( 8th ) the vertical distance (A) between the pallet ( 3 ) of the stationary induction charging device ( 4 ) and the pallet ( 5 ) of the vehicle ( 6 ) is changeable. System according to one of the preceding claims, characterized in that the imaging sensor device ( 1 ) comprises at least one 3D visible light camera device, one infrared light 3D camera device, one radar device, and / or one time-of-flight device. System according to one of the preceding claims, characterized in that the imaging sensor device ( 1 ) comprises at least one laser scanner, in particular a 3D laser scanner. System according to one of the preceding claims, characterized in that it is further adapted to be able to perform at least one sub-function in the following functions: - parking aid, - garage door condition check, - object detection in the environment of the vehicle, - parking space free / busy Detection, and / or - motion detection of objects. Method for monitoring a gap between a pallet ( 3 ) of a stationary induction charging device ( 4 ) and a pallet ( 5 ) of a parked vehicle ( 6 ), whose loading plate ( 5 ) relative to the pallet ( 3 ) of the stationary induction charging device ( 4 ) is positioned by one of the loading plate ( 3 ) of the stationary induction charging device ( 4 ) generated alternating magnetic field an alternating magnetic field in the pallet ( 5 ) of the vehicle ( 6 ) by means of a system comprising at least one imaging sensor device ( 1 ) and a control unit ( 2 ), comprising the steps of: detecting the gap between the loading plate ( 3 ) of the stationary induction charging device ( 4 ) and the pallet ( 5 ) of the parked vehicle ( 6 ) with the aid of the imaging sensor device, transmitting the acquired data to the control device ( 2 ), and evaluating the data of the imaging sensor device ( 1 ) by the control unit ( 2 ), whether in the space between the pallet ( 3 ) of the stationary induction charging device ( 4 ) and the pallet ( 5 ) of the parked vehicle ( 6 ) at least one object is located and / or which vertical distance (A) the loading plate ( 3 ) of the stationary Induction charging device ( 4 ) and the pallet ( 5 ) of the parked vehicle ( 6 ) to each other. Method according to claim 7, further comprising the step of transmitting at least one control signal from the control unit ( 2 ) to the stationary induction charging device ( 4 ) for stopping or inhibiting the generation of an alternating magnetic field by the charging plate (FIG. 3 ) of the stationary induction charging device ( 4 ), if and / or as long as there is in the space between the pallet ( 3 ) of the stationary induction charging device ( 4 ) and the pallet ( 5 ) of the parked vehicle ( 6 ) an object is located. Method according to claim 7 or 8, wherein, using a system comprising a stationary induction charging device ( 4 ), whose pallet ( 3 ) is movable in the vertical direction and / or a vehicle ( 6 ), in which the distance of his pallet ( 5 ) to the ground underneath ( 7 ) is adjustable, by the control unit ( 2 ) to the induction charging device ( 4 ) and / or the vehicle ( 6 ) at least one control signal is transmitted, by means of which by a vertical movement of the pallet ( 3 ) of the stationary induction charging device ( 4 ) and / or by a vertical movement of the pallet ( 5 ) of the vehicle ( 6 ) and / or a vertical movement of the vehicle underbody ( 8th ) the vertical distance A between the pallet ( 3 ) of the stationary induction charging device ( 4 ) and the pallet ( 5 ) of the vehicle ( 6 ) is changed.

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