WO2024245652A1 - Verfahren zur erfassung von qualitätsinformationen zu funkverbindungen - Google Patents
Verfahren zur erfassung von qualitätsinformationen zu funkverbindungen Download PDFInfo
- Publication number
- WO2024245652A1 WO2024245652A1 PCT/EP2024/061373 EP2024061373W WO2024245652A1 WO 2024245652 A1 WO2024245652 A1 WO 2024245652A1 EP 2024061373 W EP2024061373 W EP 2024061373W WO 2024245652 A1 WO2024245652 A1 WO 2024245652A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- measuring device
- measuring
- communication
- measurement object
- camera
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
- H04B17/191—Over-the-air testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/25—Monitoring; Testing of receivers taking multiple measurements
- H04B17/253—Monitoring; Testing of receivers taking multiple measurements measuring at different locations or reception points
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
Definitions
- the application relates to a method for recording quality information from wireless communication links.
- the application relates to a method for spatially resolved recording of quality information from wireless communication links, wherein a measurement object is arranged in a fixed location at a first spatial position and the measurement object has at least one first measurement object communication device for wireless communication.
- Wireless communication is used in technology mainly for the transmission of user data.
- the exchange of data is highly dependent on the quality of the radio connection.
- the best possible communication connection must therefore be ensured through unhindered transmission of electromagnetic waves between the communication participants.
- the other data of a communication can also be used to determine the position of a communication participant.
- the position is determined as a relative position between the communicating devices.
- certain functions should only be available if the position of a communication participant fulfills certain conditions.
- this function is relevant, for example, when making payments.
- access systems that monitor access or entry authorization to physical units such as buildings or vehicles, it is also advantageous if access to facilities or functions is only granted when a request for the function is made from a specific position.
- Quality information means all information that provides information about the quality of a communication connection, in particular the received signal strength or the stability of the connection during data transmission.
- Automated and partially automated measuring systems are known from automotive engineering, for example, for recording quality information on radio connections.
- rail systems are set up on which measuring structures can be moved in order to record the radio connection at predefined positions.
- measuring robots that travel around a space to be measured and record measurement data.
- measuring drones are also known that can measure electromagnetic fields in three dimensions.
- the known systems are susceptible to interference to varying degrees.
- the operating components influence the measurements required for the drone to fly.
- the use of such systems is limited by the battery life and positioning is often not carried out with the accuracy required for sufficiently accurate measurements.
- the object of the invention is to provide an improved method which enables a needs-based spatial resolution for the acquisition of quality information from wireless communication connections of any type. This object is achieved by a method having the features of claim 1.
- the method according to the invention of the type mentioned at the outset uses a camera which is fixed in place at a distance from the measuring object and is aimed at the measuring object.
- the camera is aligned with its field of view in such a way that the measuring object and at least one spatial area adjacent to the measuring object are recorded as a spatial measuring area.
- This spatial measuring area (also measuring field) is an area in which quality information is to be recorded via the wireless communication connection between the measuring object and a measuring device.
- a mobile, remote-controlled and ground-movable measuring device is placed in the spatial measuring area (measuring field).
- This measuring device is provided with markings which can be recorded by the camera. The markings can be either natural or artificial.
- Natural markings are characteristic, visually recognizable features of the measuring device itself, which can be identified by an image recognition system when evaluating the image data captured by the camera. Artificial markings are additional, visually or otherwise technically recognizable information that serves exclusively the purpose of marking recognition and has no other constructive function on the measuring device.
- the mobile, remote-controlled and ground-movable measuring device has a holder that is coupled to a measuring device communication device.
- This measuring device communication device is designed for wireless communication with the measuring object communication device.
- all communication-capable systems can be considered as communication devices, e.g. sensor devices designed for measurement analysis or transmitting and receiving devices.
- commercially available communication devices such as smartphones, vehicle keys for wireless access systems and other communication-capable mobile devices can also be considered.
- a control and evaluation device for data transmission is coupled to the camera, the measuring object communication device, and the measuring device itself.
- the control and evaluation device coordinates the positioning of the measuring device relative to the measuring object depending on the data supplied by the camera.
- the system can be operated in such a way that the control and evaluation device of the mobile, remote-controlled measuring device provides specific control commands for moving to a certain measuring position, or that the control and evaluation device of the mobile, remote-controlled measuring device provides information that it determines from the image data of the camera, and the mobile, remote-controlled measuring device itself has control capabilities that move to certain measuring positions depending on this information.
- the image data from the camera are read out by the control evaluation device and a position determination of the remotely controlled measuring device is carried out.
- algorithms can be used that perform pattern recognition and evaluate the image data in the range that is visually perceptible to humans, as well as image data that is generated outside the range that is visually perceptible to humans.
- the camera can be equipped with appropriate filters to limit the wavelengths recorded, in particular to Detection of the markings of the mobile measuring device. These can be detectable, for example, in the infrared wavelength range.
- the position of the measuring object can also be determined using the image data provided by the camera.
- the measuring object can also be provided with appropriate markings.
- the measuring device After determining the spatial position of the measuring device, i.e. its position and orientation, the measuring device is controlled in order to move to a spatial position and orientation in the measuring area that corresponds to a planned measuring position.
- the measuring position can be moved to by logic in the control-evaluation device and control commands sent from there to the measuring device, or the measuring device receives position information from the control-evaluation device and moves to a measuring position independently.
- At least one quality value of a wireless communication connection between the measuring device communication device and the at least one measuring object communication device is recorded.
- actual communication between the units can take place, but this is not necessary in every case. Rather, it is necessary that a quality value, e.g. a signal strength, is recorded that can be identifiably assigned to a connection between the measuring device communication device and a specific measuring object communication device. If the measuring object has several measuring object communication devices, the quality data are stored in Allocation to the respective measurement object communication devices recorded.
- the quality data can be stored in association with an identifier of the respective measuring object communication device, initially in the measuring object communication device or in a memory of the measuring device itself, which is coupled to the measuring object communication device to receive this data.
- the measured values can be transmitted directly or collectively to the control and evaluation device, with both wired and wireless transmission means being possible.
- the recorded quality values are stored in conjunction with the spatial position and, if applicable, the spatial orientation as well as the associated measuring object communication device.
- the above-mentioned steps of changing the position and/or orientation of the measuring device are carried out until the measuring area (or the measuring field) has been traversed with the desired resolution. After this, spatially resolved and, if necessary, additionally orientation-resolved information is available about the quality of the wireless communication connection at various positions around the measuring object.
- the holder of the mobile measuring device is designed to be height adjustable.
- the height adjustment can be triggered remotely by the control and evaluation device in order to measure the quality data of the communication connection at different room heights above the floor when the measuring device is in the same spatial position relative to the measuring object.
- the measuring device itself can carry out a measurement sequence at different room heights for each spatial position. Height adjustability can be achieved, for example, by mounting a vertical support structure equipped with a belt drive on a carriage. The holder is coupled to the belt so that it can be positioned at different heights together with the measuring device accommodated in the holder.
- Arranging the camera above the measuring object enables the detection of measuring areas around the measuring object, provided that the camera's detection angle is sufficient or the distance between the camera and the measuring object is large enough.
- the camera can be arranged centrally above the measuring object and, for example, aligned vertically or slightly diagonally to the ground in order to capture the measuring object from above.
- camera arrangements are also conceivable in which one or more cameras with an oblique viewing angle are mounted at a height that is greater than the height of the measuring object.
- the camera position can be recorded before the entire measurement process is carried out as part of the process by manually entering the position data into the control and evaluation device or by optical calibration on the system side using markings in the measurement area or on the measurement object or with the help of positioning drives on a camera mount.
- the camera it is advantageous to align the camera so that it captures the entire measurement object in its detection area and at the same time also the adjacent spatial areas along the entire circumference of the measurement object.
- a spatially resolved measurement of the quality of communication connections can be recorded with a single arrangement of the camera alignment along the entire circumference of the measurement object.
- the optics of the camera must be selected accordingly in coordination with the mounting height of the camera.
- a vehicle is used as the measuring object.
- Vehicles are usually equipped with several communication devices, e.g. with LF coils in the vehicle handles and other transmitting and receiving devices.
- UWB communication units are also mounted on the vehicle at convenient positions to locate the communication devices carried by a user in order to determine the position of a user with a UWB-capable communication device relative to the vehicle.
- the Control-evaluation device coupled to a field bus of the vehicle, whereby the field bus can in particular be a CAN bus.
- the control and evaluation device can use the field bus or CAN bus to read out the quality data from the connection of individual transmitting and receiving devices on the measuring object (the vehicle) whenever the measuring device has reached a predetermined measuring position.
- the measured values on the measuring object side are recorded by the control and evaluation device directly on the measuring object.
- a measurement can also be taken in the measuring device communication device.
- This arrangement has the advantage that all of the quality data from each of the communication devices is usually available via a vehicle bus and can be read out using a set and specified protocol.
- the bus connection can also be used to record quality values on those measuring object communication devices to which the measuring device communication device cannot establish a connection. This is particularly advantageous for mapping areas in which no communication connection can be established.
- UWB communication is characterized by broadband signal communication with a short range and transmission power.
- UWB-based communication methods allow (relatively) precise positioning and are particularly suitable for systems that require such precise positioning for access authorization checks. This is particularly the case for vehicles with wireless access systems.
- UWB communication is heavily dependent on shielding effects and is therefore sensitive to the arrangement of the UWB communication devices on the vehicle. The method according to the invention makes it possible to measure the effects of the vehicle body and other vehicle structures on the quality of a UWB connection around a motor vehicle.
- the holder of the measuring device is designed to detachably accommodate a communication device of the measuring device.
- the quality of a communication connection is to be measured with several different devices, for example several mobile phones with different geometries and manufacturers and with different internal structures, it is particularly advantageous if the holder of the measuring device is designed for detachable mounting.
- different measuring device communication devices can be coupled to the same measuring device for a uniform measurement protocol and the same position protocol can be run in order to record the respective quality values for different positions for the different measuring device communication devices.
- the holder for detachably receiving a measuring device communication device has a plurality of holder adapters for fastening a selected measuring device communication device.
- holder adapters can be adapted, for example, to different models of mobile phones or tablet PCs and enable a quick change of the measuring device communication device by coupling the respective Mounting adapter with, on the one hand, a measuring device communication device and, on the other hand, the measuring device itself.
- the use of a mobile phone as a measuring device-communication device is particularly advantageous.
- the position detection of the measuring device can in principle be carried out via the camera and the control evaluation device based on a measuring device image recording, it is also advantageous to equip the measuring device with several artificial markers.
- the artificial markers enable particularly precise detection, while image recognition with natural markers regularly depends on optimized environmental and lighting conditions.
- the light sources are used as artificial markers on the measuring device.
- the light sources are particularly preferably light sources in the infrared spectrum, in particular infrared LEDs. If such infrared LEDs are used as artificial markers, the camera can be equipped with an appropriate wavelength filter to filter out disruptive environmental influences, for example to largely filter out the UV spectrum and the spectrum visible to humans from the captured image data. The contrast of corresponding image data can then be significantly improved for position determination.
- FIG 1 shows schematically the arrangement of essential components for carrying out an embodiment of the method according to the invention
- FIG. 2 shows schematically the components and communication connections when carrying out an embodiment of the method according to the invention
- Figure 3 shows a measuring device according to the first embodiment
- Figure 4 shows a flow diagram of the embodiment of the method according to the invention
- Figure 5 shows a schematic distribution of quality data at different measuring positions
- Figure 1 shows a measuring object in the form of a vehicle 1.
- the vehicle 1 is arranged in the middle of a measuring area 2 (measuring field).
- the measuring area 2 is in the detection range of a camera 3.
- the camera 3 is arranged in the middle above the vehicle 1.
- a remote-controlled measuring device 4 is designed as a ground-moving robot that can maneuver around the vehicle 1 in the measuring area 2 (as shown below).
- the size of the measuring area i.e. the horizontal and vertical field of view of the camera, must be taken into account when planning the measurement.
- the field of view of one of the cameras 3 shall be selected so that no distortions are recorded at the edges to an extent that would negatively affect the resolution of the positioning in these areas.
- FIG. 2 shows a schematic top view of the structure.
- the vehicle 1 is located in the middle of the measuring area 2.
- the measuring device 4 is designed as a robot that can be moved across the floor and has a height-adjustable measuring device communication device 6.
- the measuring device used in this exemplary embodiment consists of a robot from Nexus, the robot platform of which is equipped with four driven Mecanum wheels.
- a vertical rod arrangement is arranged on the robot platform, along which a holder can be moved via an electrically driven belt drive.
- a mobile phone is arranged in the holder as the measuring device communication device 6. This allows the measuring device 4 to move on the floor in the measuring area 2 and the height of the measuring device communication device 6 to be varied via the electrically driven belt drive, so that measurements with different height settings can be carried out at each of the measuring points 2a.
- a control and evaluation device in the form of a computer 10 is arranged near the measuring area 2 and is in communication with the measuring device 4 via a radio connection 4a.
- the communication connection 4a is a Bluetooth connection in this exemplary embodiment.
- the computer 10 is coupled to the CAN bus of the vehicle 1 via a signal line 1a via interfaces.
- the computer 10 is also coupled to the camera 3 via a connection 3a. Image data is transmitted from the camera 3 to the computer 10.
- UWB sensors are installed at several locations on the vehicle 1 (measurement object). Communication devices are arranged as measurement object communication devices 5a, 5b, 5c, 5d, 5e.
- measurement object communication devices 5a, 5b, 5c, 5d, 5e are in turn coupled to the CAN bus of the vehicle, if necessary with the interposition of a central control system of the vehicle 1.
- the computer 10 as a control evaluation device, can record the quality data of a communication connection between each of the UWB communication devices at any time. If a UWB communication device is not in communication with another communication participant, this must also be recorded by the computer 10.
- the measuring device 4 moves through the measuring area 2 along a predetermined or dynamically generated trajectory in order to carry out a measurement of the quality values of a communication between the measuring device communication device 6 and one or more of the UWB communication devices 5a, 5b, 5c, 5d, 5e at each of the measuring points 2a. It is in the nature of things that in the event that no communication connection can be established between one or more of the UWB communication devices 5a, 5b, 5c, 5d, 5e and the measuring device communication device 6, no quality values can be recorded by the measuring device communication device 6 and the measuring device 4 itself, apart from the information that no communication is possible.
- the quality values recorded in parallel by the computer 10 at the same position which are read out from the bus system of the vehicle via the connection la, enable a mapping of the entire area 2 for each of the UWB communication devices 5a, 5b, 5c, 5d, 5e.
- the measuring device 4 used in this exemplary embodiment is shown in a perspective view in Figure 3.
- the robot base 4b is shown with four driven Mecanum wheels.
- This robot base is designed with drive means, an energy storage device and transmitting and receiving means for communication with the robot.
- the robot base receives position information or control information about the movement in the measuring area 2 from the control and evaluation device 10.
- a support structure 4d with a belt drive 4e is arranged on the robot base 4b.
- a carrier 4c is connected to the belt drive 4e in order to adjust the height of the carrier 4c relative to the floor using a motor.
- the belt drive 4e is coupled to a controllable electric motor.
- a mobile phone as a measuring device-communication device 6 is clamped into the holder 4c, so that the mobile phone as a measuring device-communication device 6 is held so that it can be moved in a height-adjustable manner on the robot base 4b.
- By controlling the drive of the Mecanum wheels in the known manner it is possible to move the measuring device 4 in the measuring area 2 as desired and to align it with the measuring object.
- At the upper end of the support structure 4d in the area of the belt bearing, three infrared LEDs 4f are arranged. These infrared LEDs 4f are recorded by the camera 3 and the corresponding image data are evaluated in the control evaluation device 10. Sorting the recorded infrared LEDs is possible because the different distances between the LEDs allow orientation recognition and assignment.
- the LEDs are arranged in a triangular structure, although this is not an equilateral triangle, so that one of the LEDs can be identified at any time based on the distance measurement of the image data.
- the infrared LEDs as markings 4f at the upper end of the support structure 4d, shading of these markings by the measuring object 1 is largely avoided.
- FIG. 4 shows a flow chart for carrying out the method according to the invention in accordance with the first embodiment. The process is divided into three main parts 100, 110, 120 and is shown from the perspective of the control evaluation device:
- the control evaluation device 10 establishes a connection to the camera 3 and sets the parameters that are necessary for robust vehicle and robot detection. Once these are set, the search for vehicle markers begins, which indicate the position of the vehicle 1 in the measuring area 2. For this purpose, the current image is always processed and then a search is made for the markers.
- the markers can be optical markings or lighting devices temporarily attached to the vehicle, e.g. infrared LEDs. Before a measurement run, it is only necessary to measure the vehicle in the measuring area 2 once in order to determine its exact position and orientation in the measuring area 2. This optical measurement of the measuring object in the measuring area can be omitted entirely if the measuring object is precisely positioned in the measuring area at the beginning of the measurement. However, measuring using optical markers allows the To place the measuring object within certain tolerances in the measuring range and to take the actual position into account in the measurements by initially calibrating the measuring object.
- the search for the artificial markings 4 f of the measuring device 4 is then carried out. If this search is successful, the first part 110 of the method is completed.
- the control evaluation unit 10 sorts the artificial markings 4f of the measuring device and creates a measuring point matrix 2a with the measuring positions to be specified. This is followed by the route planning, i.e. the order in which the measuring device four should approach the measuring points 2A.
- the measurement is carried out in the process part 130.
- the camera 3 delivers a live video image to the control evaluation unit 10.
- the controlling evaluation device 10 determines the position of the artificial markings 4f of the measuring device 4. If the artificial markings 4f are not found by the controlling evaluation device, a new search is carried out in the next image data. If the artificial markings 4f are found, the control evaluation device sorts the artificial markings 4f found and thus determines the position and orientation of the measuring device 4. Depending on the position of the measuring device 4, the control evaluation device 10 can also determine on which side of the vehicle 3 the measuring device 4 is located and align the measuring device with the vehicle.
- the control evaluation device 10 After determining the position of the measuring device 4, the control evaluation device 10 checks whether the measuring device 4 has reached the intended measuring point 2a and, in this case, gives the command to stop. The actual measurement of the UWB connection quality then takes place, with the control evaluation device 10 reading out the data from the respective measuring object communication devices 5a, ..., 5e via the CAN vehicle bus. Quality parameters for the communication connections can also be stored in the measuring device communication devices 6 at the same time and, if necessary, sent directly via the Bluetooth connection 4a.
- Figure 5 shows a schematic of the result of a measurement recording in a measurement run for a uniform height adjustment of the measuring device communication device 6.
- the quality values shown relate to the connection of the measuring device communication device 6 at the respective marked positions with the measurement object communication devices 5b.
- the recorded measurement values were divided into four categories, namely -, 0, +, ++, where the minus sign stands for no communication, the 0 for poor connection quality, a + for good connection quality and a double ++ for very good connection quality.
- a corresponding measurement value distribution can also be recorded for any other of the measurement object communication devices 5a, ..., 5e, with corresponding values also being recorded at each measuring point 2a for different height settings of the measuring device
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202480034017.0A CN121219983A (zh) | 2023-06-02 | 2024-04-25 | 从无线通信中获取质量信息的方法 |
| EP24722520.4A EP4721303A1 (de) | 2023-06-02 | 2024-04-25 | Verfahren zur erfassung von qualitätsinformationen zu funkverbindungen |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023114537.1A DE102023114537A1 (de) | 2023-06-02 | 2023-06-02 | Verfahren zur Erfassung von Qualitätsinformationen zu Funkverbindungen |
| DE102023114537.1 | 2023-06-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024245652A1 true WO2024245652A1 (de) | 2024-12-05 |
Family
ID=90923962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/061373 Ceased WO2024245652A1 (de) | 2023-06-02 | 2024-04-25 | Verfahren zur erfassung von qualitätsinformationen zu funkverbindungen |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4721303A1 (de) |
| CN (1) | CN121219983A (de) |
| DE (1) | DE102023114537A1 (de) |
| WO (1) | WO2024245652A1 (de) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170061655A1 (en) * | 2012-06-05 | 2017-03-02 | Apple Inc. | System and Method for Generating Signal Coverage Information from Client Metrics |
| US20180274920A1 (en) * | 2017-03-22 | 2018-09-27 | Topcon Corporation | Device, method, and system for processing survey data, and program therefor |
-
2023
- 2023-06-02 DE DE102023114537.1A patent/DE102023114537A1/de active Pending
-
2024
- 2024-04-25 CN CN202480034017.0A patent/CN121219983A/zh active Pending
- 2024-04-25 EP EP24722520.4A patent/EP4721303A1/de active Pending
- 2024-04-25 WO PCT/EP2024/061373 patent/WO2024245652A1/de not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170061655A1 (en) * | 2012-06-05 | 2017-03-02 | Apple Inc. | System and Method for Generating Signal Coverage Information from Client Metrics |
| US20180274920A1 (en) * | 2017-03-22 | 2018-09-27 | Topcon Corporation | Device, method, and system for processing survey data, and program therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN121219983A (zh) | 2025-12-26 |
| DE102023114537A1 (de) | 2024-12-05 |
| EP4721303A1 (de) | 2026-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1669715B1 (de) | Fahrwerkvermessungseinrichtung | |
| EP3507227B1 (de) | Verfahren zur analyse und messsystem zum vermessen eines aufzugschachts einer aufzuganlage | |
| DE69735273T2 (de) | Messeinrichtung für fahrzeuge | |
| DE69732666T2 (de) | Vorrichtung zur raumkoordinatenbestimmung und verfahren zu deren kalibrierung | |
| DE60302155T2 (de) | Bakenandocksystem zur automatischen ausrichtung einer passagierladebrücke auf die türöffnung eines flugzeugs | |
| EP1141655B1 (de) | Absteckvorrichtung | |
| EP3872525A1 (de) | Scananordnung und verfahren zum scannen eines objektes | |
| WO2007107242A1 (de) | Verfahren zur ermittlung der position und orientierung einer mess- oder reparatureinrichtung und eine nach dem verfahren arbeitende vorrichtung | |
| EP2603767A1 (de) | Verfahren zum kalibrieren eines messsystems und vorrichtung zum durchführen des verfahrens | |
| DE102011087177A1 (de) | Verfahren zur Positionierung eines Messsystems und Messsystem zur Durchführung des Verfahrens | |
| WO2018158073A1 (de) | Kalibrierboden, messvorrichtung und verfahren zur kalibrierung von fahrerassistenzsystemen | |
| WO2017207602A1 (de) | Verfahren zur identifizierung eines werkstücks, ermitteln eines messablaufs und vermessung eines werkstücks mit einem messgerät | |
| DE202024102700U1 (de) | Vorrichtung für Bilderfassung und Projektion | |
| EP3726425B1 (de) | Verfahren zum physikalischen, insbesondere zum optischen, erfassen zumindest eines nutzungsobjektes | |
| EP3716211A1 (de) | Verfahren, vorrichtung, server und system zur kalibrierung mindestens einer kamera eines fahrerassistenzsystems | |
| DE102008063988B4 (de) | Verfahren zum Charakterisieren oder Prüfen der Funktion eines Sensors eines Fahrerassistenzsystems eines Prüffahrzeugs und entsprechende Vorrichtung | |
| EP2180305B1 (de) | Verfahren zur Erprobung und/oder Funktionsprüfung wenigstens eines in einem Kraftfahrzeug verbauten Umfeldsensors sowie zugehörige Anordnung | |
| EP4721303A1 (de) | Verfahren zur erfassung von qualitätsinformationen zu funkverbindungen | |
| EP3571462B1 (de) | Verfahren und vorrichtung zum erzeugen eines 3d-thermogramms | |
| DE102007013633A1 (de) | Vorbereiten eines Messbetriebes eines Koordinatenmessgeräts | |
| DE102009038064B4 (de) | Verfahren zur Lagebestimmung und/oder Vermessung wenigstens eines Teils eines Kraftfahrzeugs in einem Areal, Messanordnung und Kalibrierungsanordnung | |
| WO2022096281A1 (de) | Kalibrierverfahren und kalibriersystem für einen fahrzeugsensor | |
| EP2645331A1 (de) | Verfahren zur Verifizierung der Ausrichtung eines Verkehrsüberwachungsgerätes | |
| DE202024102699U1 (de) | Inspektionsvorrichtung | |
| EP4653808A1 (de) | Inspektionsvorrichtung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 24722520 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2024722520 Country of ref document: EP |
|
| ENP | Entry into the national phase |
Ref document number: 2024722520 Country of ref document: EP Effective date: 20260102 |
|
| ENP | Entry into the national phase |
Ref document number: 2024722520 Country of ref document: EP Effective date: 20260102 |
|
| ENP | Entry into the national phase |
Ref document number: 2024722520 Country of ref document: EP Effective date: 20260102 |
|
| ENP | Entry into the national phase |
Ref document number: 2024722520 Country of ref document: EP Effective date: 20260102 |
|
| ENP | Entry into the national phase |
Ref document number: 2024722520 Country of ref document: EP Effective date: 20260102 |
|
| ENP | Entry into the national phase |
Ref document number: 2024722520 Country of ref document: EP Effective date: 20260102 |
|
| WWP | Wipo information: published in national office |
Ref document number: 2024722520 Country of ref document: EP |